Class / Patent application number | Description | Number of patent applications / Date published |
299100400 | Of hard material disintegrating machines | 82 |
20090008984 | Method For Regulating the Drive of a Shearing or Heading Machine - In a method for controlling the drive of a shearing or heading machine for cutting a round, as a function of manipulated variables such as the movement speed of the cantilever arm, the position of the cutting tools and/or the power consumption of the drive motors and the pressure in hydraulic actuating cylinders, a minimum and a maximum target value are determined for the movement speed of the cantilever arm, and at least two factors each having values of between 0 and 1 are calculated for the manipulated variables as a function of measurement values, the measurement values at least comprising cutting tool position data compared to set data corresponding with a set profile, motor load measurement data and cantilever arm movement speed measurement data, and the movement speed of the cantilever arm is controlled as a function of the product of the set speed and the respectively calculated factors. | 01-08-2009 |
20100109417 | Automated Excavation Machine - The present invention is directed to an excavator that is operable in manual and automatic modes and uses state machines to effect unit operations, rotationally offset swing actuators to rotate boom and cutter head, a fail safe hydraulic system to maintain gripper pressure in the event of a malfunction of the hydraulic system, differing position and pressure control functions in the hydraulic actuators, a kinematic module to effect pitch and roll adjustments, a cutting face profile generator to generate a profile of the excavation face, and an optimization module to realize a high degree of optimization of excavator operation. | 05-06-2010 |
20120038202 | Method for Controlling the Depth of Shears - A method for controlling the cutting depth of drums of shearers used as recovery equipment in underground coal mining. A cut of drums into country rock is detected by measured values, from which the drum cutting depth is adjusted by control signals. In particular, during a recovery or shearing operation, the current consumption of cutting motors that drive the drums, and the traveling speed of the shearer, are detected as measured values, from which, in a computer, the respective specific cutting energy is determined as a ratio of the current consumption to the traveling speed. For different mining conditions, a respective characteristic value for the specific cutting energy is determined as a function of the compactness of coal that is to be recovered and of an outcrop of country rock. When this characteristic value is exceeded, a cut from the country rock is assumed. Corresponding control signals for a correction of the cutting depth of the drum are generated. | 02-16-2012 |
20120068523 | GUIDANCE SYSTEM FOR A MINING MACHINE - A guidance system for mining a seam of material includes a mining machine, a carriage, and a guide assembly. The mining machine includes a cutter head and defines a roll axis, a pitch axis, and a yaw axis. The carriage includes a first emitter, a second emitter, and a third emitter. The first emitter projects a first laser that is aligned with a seam plane. The second emitter projects a second laser, and the third emitter projects a third laser. The guide assembly includes a first indicator and a target. The first indicator is aligned with the second laser, and the target is aligned with the third laser. The relative positions of the first indicator with respect to the second laser and the target with respect to the third laser indicate the orientation of the roll axis, pitch axis, and yaw axis relative to the seam plane. | 03-22-2012 |
20130015696 | HYDRAULIC RESONANT BREAKING HAMMERAANM Tang; ZhongshengAACI Nanning CityAACO CNAAGP Tang; Zhongsheng Nanning City CN - The present invention discloses a hydraulic resonant breaking hammer, comprising a hydraulic driving system, a vibration exciter ( | 01-17-2013 |
20130033085 | STABILIZATION SYSTEM FOR A MINING MACHINE - A mining machine including a frame, a cutting head moveably coupled to the frame and pivotable about an axis that is substantially perpendicular to a first mine surface, and a first actuator for stabilizing the frame relative to the first mine surface. The first actuator is coupled to the frame and includes a first end extendable in a first direction to engage the first mine surface. The extension of the first actuator is automatically controlled based on measurements of at least one indicator of the force between the first actuator and the first mine surface. | 02-07-2013 |
20130033086 | AUTOMATED FIND-FACE OPERATION OF A MINING MACHINE - Methods and systems for automatically operating a continuous mining machine. One method includes automatically operating at least one actuator to position a platform supporting a cutterhead at a predetermined starting position and automatically operating the at least one actuator to advance the platform toward a cutting face until the cutterhead contacts the cutting face and at least one indicator of a physical force between the cutterhead and the cutting face exceeds a predetermined value. The method also includes automatically saving at least one coordinate of the cutting face to a computer-readable medium, the at least one coordinate based on a parameter of the at least one actuator when the indicator exceeds the predetermined value. | 02-07-2013 |
20130082506 | Method and Apparatus for Increasing the Yield in a Deposit - A method is provided for increasing the yield in a deposit comprising a rock that includes a valuable mineral, which can be exposed by virtue of the rock being comminuted, and at least one further mineral, wherein the valuable mineral has a higher density than the at least one further mineral, which method includes: carrying out a drilling operation using a drilling tool prior to the rock being extracted, drillings being generated in the process; forming an aerosol comprising the drillings and a gas stream; transferring the aerosol from the drilling tool to at least one air separator; carrying out hydraulic classification, wherein at least two fractions comprising in each case equal-falling particles of the drillings are formed; and determining a property which belongs to at least one of the fractions and is used as a measure for setting an optimum degree of comminution of the rock. | 04-04-2013 |
20130200680 | EXCAVATION SYSTEM USING A WATER JET, AND EXCAVATION METHOD USING THE SAME - A tunnel excavation technique using a water jet. A water jet system includes a moving unit movable back and forth with respect to an area to be blasted for tunnel excavation, an articulated robot arm mounted on the moving unit, a water jet nozzle which ejects high-pressure water and an abrasive toward an area to be excavated, and a control unit which controls the moving unit, the articulated robot arm and the water jet nozzle. A free face having a predetermined depth is formed of the area to be excavated in the direction in which the tunnel is to be excavated using the water jet system. Since the blasting is performed after the free face is formed, blast vibration can be effectively restricted. | 08-08-2013 |
20130341995 | GUIDANCE SYSTEM FOR A MINING MACHINE - A guidance system for mining a seam of material includes a mining machine, a carriage, and a guide assembly. The mining machine includes a cutter head and defines a roll axis extending the length of the machine, a pitch axis extending from one side of the machine to the other side, and a yaw axis extending from a top side of the machine to the bottom side. The carriage includes a first emitter, a second emitter, and a third emitter. The first emitter projects a first laser that is aligned with a seam plane. The second emitter projects a second laser, and the third emitter projects a third laser. The guide assembly includes a first indicator and a target. The first indicator is aligned with the second laser, and the target is aligned with the third laser. The relative positions of the first indicator with respect to the second laser and the target with respect to the third laser indicate the orientation of the roll axis, pitch axis, and yaw axis relative to the seam plane. | 12-26-2013 |
20140077578 | CUTTER HEAD FOR MINING MACHINE - A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate. | 03-20-2014 |
20140139006 | ADVANCING LONGWALL SYSTEM FOR SURFACE MINING - A surface mining system for removing material from a mining face generally includes a conveyor extending substantially parallel to the mining face, a miner supported by and moveable along the conveyor, and a conveyor translation device associated with the conveyor and operable to move the conveyor and the miner toward the mining face. A method for advancing a surface mining longwall system generally includes moving the longwall shearer along a face conveyor, operating load translation devices to move the face conveyor and the longwall shearer toward the mining face, resetting a first group of load translation devices, and then resetting a second group of load translation devices. A load translation device generally includes an actuator, a ground drilling device coupled to and moveable with a portion of the actuator, and a frame coupled to and moveable with another portion of the actuator. | 05-22-2014 |
20140232168 | DEVICE MACHINING MATERIALS BY MILLING OR DRILLING, AND METHOD THEREFOR - A method and device for machining materials includes a tool drum having tool shafts that support machining tools that can be driven in rotation. A drive element rotates the tool shafts and the tool drum relative to each other, and a drum carrier can be moved relative to the material by using a movement device. A control device varies the speed of the relative movement between the tool carrier and material and the rotational speed of the tool drum. To avoid critical operating points, one measuring sensor measures the natural translational vibration and/or another measuring sensor determines the rotational vibrations of the tool drum. The control device has a vibration analysis module, by which a vibration spectrum can be determined, and at least one controller module, by which drive parameters can be controlled as a function of the vibrations determined by the analysis module. | 08-21-2014 |
20140252842 | MINING MACHINE WITH DRIVEN DISC CUTTERS - A mining machine includes a cutting mechanism with an arm, and a substantial weight of more than a thousand pounds attached to the arm. The mining machine also includes a first disc cutter adapted to engage the material to be mined and mounted on a first disc cutter assembly for eccentrically driving the first disc cutter, the first disc cutter assembly being mounted within the substantial weight. The mining machine also includes at least a second disc cutter spaced apart from the first disc cutter assembly and adapted to engage the material to be mined, and mounted on a second disc cutter assembly for eccentrically driving the second disc cutter, the second disc cutter assembly being mounted within the substantial weight. | 09-11-2014 |
20150061350 | SHEARER ANTI-COLLISION - Systems and methods for operating a mining machine. One system includes a roof support system, a radar device, and at least one controller. The roof support system incorporates an anti-stealth device, and the radar device is configured to transmit a plurality of radio waves toward the roof support system and detect a plurality of reflections of the plurality of radio waves. The at least one controller is configured to obtain reflection data from the radar device representing timing information regarding the plurality of radio waves and the plurality of reflections, determine a position of the roof support system based on the reflection data, and perform at least one automatic action when the identified position of the roof support system satisfies a threshold. | 03-05-2015 |
20150061351 | DETECTING SUMP DEPTH OF A MINER - Systems and methods for operating a mining machine. One system includes a controller, a stationary object, and a radar device. The radar device transmits radio waves toward the stationary object and detects reflections of the radio waves. The controller obtains timing information regarding the radio waves and the reflections. Based on the timing information, the controller is configured to determine a first distance between the radar device and the stationary object before sumping the mining machine into material and a second distance between the radar device and the stationary object after sumping the mining machine into the material. The controller is also configured to determine a sump depth of the mining machine based on the first distance and the second distance, compare the determined sump depth to a predetermined sump depth, and perform at least one automatic action when the determined sump depth does not satisfy the predetermined sump depth. | 03-05-2015 |
20150097411 | GUIDANCE SYSTEM FOR A MINING MACHINE - A guidance system for mining a seam of material includes a mining machine, a carriage, and a guide assembly. The mining machine includes a cutter head and defines a roll axis extending the length of the machine, a pitch axis extending from one side of the machine to the other side, and a yaw axis extending from a top side of the machine to the bottom side. The carriage includes a first emitter, a second emitter, and a third emitter. The first emitter projects a first laser that is aligned with a seam plane. The second emitter projects a second laser, and the third emitter projects a third laser. The guide assembly includes a first indicator and a target. The first indicator is aligned with the second laser, and the target is aligned with the third laser. The relative positions of the first indicator with respect to the second laser and the target with respect to the third laser indicate the orientation of the roll axis, pitch axis, and yaw axis relative to the seam plane. | 04-09-2015 |
20160090839 | METHOD OF PROTECTING THE HEALTH AND WELL-BEING OF COAL MINE MACHINE OPERATORS - A method of operating coal mine machinery that protects and maintains machine operators' health and well-being removes the machine operators to a clean, low-noise environment inside a refuge chamber. Inside, are controls, cameras, audio, and informational displays needed to run continuous mining machines nearby and communicate mine-wide with other personnel. Cameras fitted to the mining machines provide straight-ahead views, ground penetrating radars fitted to the cutting drums measure the coal depths in the ceilings above, the floors below, and the coal face ahead. Guidance data is presented on informational displays, and the data from the ceilings and floors is used to drive computer graphics special effects to graphically represent the coal ceilings and coal floors overlaying boundary rock. Audio pickups on the mining machine allow the operator to hear and feel how the machine is functioning, just as operators have always employed their other senses. | 03-31-2016 |
20160102551 | DETECTING SUMP DEPTH OF A MINER - Systems and methods for operating a mining machine. One system includes a controller, a stationary object, and a radar device. The radar device transmits radio waves toward the stationary object and detects reflections of the radio waves. The controller obtains timing information regarding the radio waves and the reflections. Based on the timing information, the controller is configured to determine a first distance between the radar device and the stationary object before sumping the mining machine into material and a second distance between the radar device and the stationary object after sumping the mining machine into the material. The controller is also configured to determine a sump depth of the mining machine based on the first distance and the second distance, compare the determined sump depth to a predetermined sump depth, and perform at least one automatic action when the determined sump depth does not satisfy the predetermined sump depth. | 04-14-2016 |
20180023390 | Milling Depth Compensation System and Method | 01-25-2018 |
20090008984 | Method For Regulating the Drive of a Shearing or Heading Machine - In a method for controlling the drive of a shearing or heading machine for cutting a round, as a function of manipulated variables such as the movement speed of the cantilever arm, the position of the cutting tools and/or the power consumption of the drive motors and the pressure in hydraulic actuating cylinders, a minimum and a maximum target value are determined for the movement speed of the cantilever arm, and at least two factors each having values of between 0 and 1 are calculated for the manipulated variables as a function of measurement values, the measurement values at least comprising cutting tool position data compared to set data corresponding with a set profile, motor load measurement data and cantilever arm movement speed measurement data, and the movement speed of the cantilever arm is controlled as a function of the product of the set speed and the respectively calculated factors. | 01-08-2009 |
20100109417 | Automated Excavation Machine - The present invention is directed to an excavator that is operable in manual and automatic modes and uses state machines to effect unit operations, rotationally offset swing actuators to rotate boom and cutter head, a fail safe hydraulic system to maintain gripper pressure in the event of a malfunction of the hydraulic system, differing position and pressure control functions in the hydraulic actuators, a kinematic module to effect pitch and roll adjustments, a cutting face profile generator to generate a profile of the excavation face, and an optimization module to realize a high degree of optimization of excavator operation. | 05-06-2010 |
20120038202 | Method for Controlling the Depth of Shears - A method for controlling the cutting depth of drums of shearers used as recovery equipment in underground coal mining. A cut of drums into country rock is detected by measured values, from which the drum cutting depth is adjusted by control signals. In particular, during a recovery or shearing operation, the current consumption of cutting motors that drive the drums, and the traveling speed of the shearer, are detected as measured values, from which, in a computer, the respective specific cutting energy is determined as a ratio of the current consumption to the traveling speed. For different mining conditions, a respective characteristic value for the specific cutting energy is determined as a function of the compactness of coal that is to be recovered and of an outcrop of country rock. When this characteristic value is exceeded, a cut from the country rock is assumed. Corresponding control signals for a correction of the cutting depth of the drum are generated. | 02-16-2012 |
20120068523 | GUIDANCE SYSTEM FOR A MINING MACHINE - A guidance system for mining a seam of material includes a mining machine, a carriage, and a guide assembly. The mining machine includes a cutter head and defines a roll axis, a pitch axis, and a yaw axis. The carriage includes a first emitter, a second emitter, and a third emitter. The first emitter projects a first laser that is aligned with a seam plane. The second emitter projects a second laser, and the third emitter projects a third laser. The guide assembly includes a first indicator and a target. The first indicator is aligned with the second laser, and the target is aligned with the third laser. The relative positions of the first indicator with respect to the second laser and the target with respect to the third laser indicate the orientation of the roll axis, pitch axis, and yaw axis relative to the seam plane. | 03-22-2012 |
20130015696 | HYDRAULIC RESONANT BREAKING HAMMERAANM Tang; ZhongshengAACI Nanning CityAACO CNAAGP Tang; Zhongsheng Nanning City CN - The present invention discloses a hydraulic resonant breaking hammer, comprising a hydraulic driving system, a vibration exciter ( | 01-17-2013 |
20130033085 | STABILIZATION SYSTEM FOR A MINING MACHINE - A mining machine including a frame, a cutting head moveably coupled to the frame and pivotable about an axis that is substantially perpendicular to a first mine surface, and a first actuator for stabilizing the frame relative to the first mine surface. The first actuator is coupled to the frame and includes a first end extendable in a first direction to engage the first mine surface. The extension of the first actuator is automatically controlled based on measurements of at least one indicator of the force between the first actuator and the first mine surface. | 02-07-2013 |
20130033086 | AUTOMATED FIND-FACE OPERATION OF A MINING MACHINE - Methods and systems for automatically operating a continuous mining machine. One method includes automatically operating at least one actuator to position a platform supporting a cutterhead at a predetermined starting position and automatically operating the at least one actuator to advance the platform toward a cutting face until the cutterhead contacts the cutting face and at least one indicator of a physical force between the cutterhead and the cutting face exceeds a predetermined value. The method also includes automatically saving at least one coordinate of the cutting face to a computer-readable medium, the at least one coordinate based on a parameter of the at least one actuator when the indicator exceeds the predetermined value. | 02-07-2013 |
20130082506 | Method and Apparatus for Increasing the Yield in a Deposit - A method is provided for increasing the yield in a deposit comprising a rock that includes a valuable mineral, which can be exposed by virtue of the rock being comminuted, and at least one further mineral, wherein the valuable mineral has a higher density than the at least one further mineral, which method includes: carrying out a drilling operation using a drilling tool prior to the rock being extracted, drillings being generated in the process; forming an aerosol comprising the drillings and a gas stream; transferring the aerosol from the drilling tool to at least one air separator; carrying out hydraulic classification, wherein at least two fractions comprising in each case equal-falling particles of the drillings are formed; and determining a property which belongs to at least one of the fractions and is used as a measure for setting an optimum degree of comminution of the rock. | 04-04-2013 |
20130200680 | EXCAVATION SYSTEM USING A WATER JET, AND EXCAVATION METHOD USING THE SAME - A tunnel excavation technique using a water jet. A water jet system includes a moving unit movable back and forth with respect to an area to be blasted for tunnel excavation, an articulated robot arm mounted on the moving unit, a water jet nozzle which ejects high-pressure water and an abrasive toward an area to be excavated, and a control unit which controls the moving unit, the articulated robot arm and the water jet nozzle. A free face having a predetermined depth is formed of the area to be excavated in the direction in which the tunnel is to be excavated using the water jet system. Since the blasting is performed after the free face is formed, blast vibration can be effectively restricted. | 08-08-2013 |
20130341995 | GUIDANCE SYSTEM FOR A MINING MACHINE - A guidance system for mining a seam of material includes a mining machine, a carriage, and a guide assembly. The mining machine includes a cutter head and defines a roll axis extending the length of the machine, a pitch axis extending from one side of the machine to the other side, and a yaw axis extending from a top side of the machine to the bottom side. The carriage includes a first emitter, a second emitter, and a third emitter. The first emitter projects a first laser that is aligned with a seam plane. The second emitter projects a second laser, and the third emitter projects a third laser. The guide assembly includes a first indicator and a target. The first indicator is aligned with the second laser, and the target is aligned with the third laser. The relative positions of the first indicator with respect to the second laser and the target with respect to the third laser indicate the orientation of the roll axis, pitch axis, and yaw axis relative to the seam plane. | 12-26-2013 |
20140077578 | CUTTER HEAD FOR MINING MACHINE - A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate. | 03-20-2014 |
20140139006 | ADVANCING LONGWALL SYSTEM FOR SURFACE MINING - A surface mining system for removing material from a mining face generally includes a conveyor extending substantially parallel to the mining face, a miner supported by and moveable along the conveyor, and a conveyor translation device associated with the conveyor and operable to move the conveyor and the miner toward the mining face. A method for advancing a surface mining longwall system generally includes moving the longwall shearer along a face conveyor, operating load translation devices to move the face conveyor and the longwall shearer toward the mining face, resetting a first group of load translation devices, and then resetting a second group of load translation devices. A load translation device generally includes an actuator, a ground drilling device coupled to and moveable with a portion of the actuator, and a frame coupled to and moveable with another portion of the actuator. | 05-22-2014 |
20140232168 | DEVICE MACHINING MATERIALS BY MILLING OR DRILLING, AND METHOD THEREFOR - A method and device for machining materials includes a tool drum having tool shafts that support machining tools that can be driven in rotation. A drive element rotates the tool shafts and the tool drum relative to each other, and a drum carrier can be moved relative to the material by using a movement device. A control device varies the speed of the relative movement between the tool carrier and material and the rotational speed of the tool drum. To avoid critical operating points, one measuring sensor measures the natural translational vibration and/or another measuring sensor determines the rotational vibrations of the tool drum. The control device has a vibration analysis module, by which a vibration spectrum can be determined, and at least one controller module, by which drive parameters can be controlled as a function of the vibrations determined by the analysis module. | 08-21-2014 |
20140252842 | MINING MACHINE WITH DRIVEN DISC CUTTERS - A mining machine includes a cutting mechanism with an arm, and a substantial weight of more than a thousand pounds attached to the arm. The mining machine also includes a first disc cutter adapted to engage the material to be mined and mounted on a first disc cutter assembly for eccentrically driving the first disc cutter, the first disc cutter assembly being mounted within the substantial weight. The mining machine also includes at least a second disc cutter spaced apart from the first disc cutter assembly and adapted to engage the material to be mined, and mounted on a second disc cutter assembly for eccentrically driving the second disc cutter, the second disc cutter assembly being mounted within the substantial weight. | 09-11-2014 |
20150061350 | SHEARER ANTI-COLLISION - Systems and methods for operating a mining machine. One system includes a roof support system, a radar device, and at least one controller. The roof support system incorporates an anti-stealth device, and the radar device is configured to transmit a plurality of radio waves toward the roof support system and detect a plurality of reflections of the plurality of radio waves. The at least one controller is configured to obtain reflection data from the radar device representing timing information regarding the plurality of radio waves and the plurality of reflections, determine a position of the roof support system based on the reflection data, and perform at least one automatic action when the identified position of the roof support system satisfies a threshold. | 03-05-2015 |
20150061351 | DETECTING SUMP DEPTH OF A MINER - Systems and methods for operating a mining machine. One system includes a controller, a stationary object, and a radar device. The radar device transmits radio waves toward the stationary object and detects reflections of the radio waves. The controller obtains timing information regarding the radio waves and the reflections. Based on the timing information, the controller is configured to determine a first distance between the radar device and the stationary object before sumping the mining machine into material and a second distance between the radar device and the stationary object after sumping the mining machine into the material. The controller is also configured to determine a sump depth of the mining machine based on the first distance and the second distance, compare the determined sump depth to a predetermined sump depth, and perform at least one automatic action when the determined sump depth does not satisfy the predetermined sump depth. | 03-05-2015 |
20150097411 | GUIDANCE SYSTEM FOR A MINING MACHINE - A guidance system for mining a seam of material includes a mining machine, a carriage, and a guide assembly. The mining machine includes a cutter head and defines a roll axis extending the length of the machine, a pitch axis extending from one side of the machine to the other side, and a yaw axis extending from a top side of the machine to the bottom side. The carriage includes a first emitter, a second emitter, and a third emitter. The first emitter projects a first laser that is aligned with a seam plane. The second emitter projects a second laser, and the third emitter projects a third laser. The guide assembly includes a first indicator and a target. The first indicator is aligned with the second laser, and the target is aligned with the third laser. The relative positions of the first indicator with respect to the second laser and the target with respect to the third laser indicate the orientation of the roll axis, pitch axis, and yaw axis relative to the seam plane. | 04-09-2015 |
20160090839 | METHOD OF PROTECTING THE HEALTH AND WELL-BEING OF COAL MINE MACHINE OPERATORS - A method of operating coal mine machinery that protects and maintains machine operators' health and well-being removes the machine operators to a clean, low-noise environment inside a refuge chamber. Inside, are controls, cameras, audio, and informational displays needed to run continuous mining machines nearby and communicate mine-wide with other personnel. Cameras fitted to the mining machines provide straight-ahead views, ground penetrating radars fitted to the cutting drums measure the coal depths in the ceilings above, the floors below, and the coal face ahead. Guidance data is presented on informational displays, and the data from the ceilings and floors is used to drive computer graphics special effects to graphically represent the coal ceilings and coal floors overlaying boundary rock. Audio pickups on the mining machine allow the operator to hear and feel how the machine is functioning, just as operators have always employed their other senses. | 03-31-2016 |
20160102551 | DETECTING SUMP DEPTH OF A MINER - Systems and methods for operating a mining machine. One system includes a controller, a stationary object, and a radar device. The radar device transmits radio waves toward the stationary object and detects reflections of the radio waves. The controller obtains timing information regarding the radio waves and the reflections. Based on the timing information, the controller is configured to determine a first distance between the radar device and the stationary object before sumping the mining machine into material and a second distance between the radar device and the stationary object after sumping the mining machine into the material. The controller is also configured to determine a sump depth of the mining machine based on the first distance and the second distance, compare the determined sump depth to a predetermined sump depth, and perform at least one automatic action when the determined sump depth does not satisfy the predetermined sump depth. | 04-14-2016 |
20180023390 | Milling Depth Compensation System and Method | 01-25-2018 |
299100500 | Floor working | 40 |
20090108663 | Road Milling Machine and Method for Positioning the Machine Frame Parallel to the Ground - In a self-propelled road milling machine ( | 04-30-2009 |
20110080034 | Milling machine, in particular surface miner, and method for mining milled material of an open cast surface - In a method for milling an opencast mining surface or for milling off layers of an asphalt or concrete traffic surface with a milling machine removing the ground surface, by milling the ground surface along a predetermined milling track having a predetermined length, by transporting the milled material via a conveying device to at least one container of a truck that travels along next to the milling machine, said truck having a predetermined maximum loading volume per load, and by replacing a fully loaded truck with an unloaded truck when the maximum loading volume of a truck load has been reached, it is provided for the following features to be achieved: calculation of the maximum total loading volume resulting over the length of the current milling track as a function of the current effective working width and a milling depth that has been optimized in relation to a predetermined, preferably maximum milling power, calculation of the number of truck loads required for the maximum total loading volume of a milling track, determination of an effective total loading volume of the current milling track, which results from the volume of the nearest whole number of loads, and adjustment of the adjustable total milling volume of the milling machine over the length of the milling track to match the effective total loading volume that results in a whole number of loads. | 04-07-2011 |
20110193397 | Adaptive Advance Drive Control For Milling Machine - An adaptive advance control system for a construction machine senses the reaction forces applied by the ground surface to a milling drum, and in response to the sensed changes in those reaction forces controls the motive power applied to an advance drive of the machine. Early and rapid detection of such changes in reaction forces allow the control system to aid in preventing lurch forward events of the construction machine. | 08-11-2011 |
20110266858 | Apparatus For Processing Ground Surfaces - An apparatus for processing ground surfaces comprises a moving device, a working device, especially a milling device for milling the ground surface, and a drive device for driving the moving device and the working device, wherein the working device is movable between a working position, in which it is in operative engagement with the ground surface, and a maneuvering position, in which it is not in operative engagement with the ground surface, wherein a sensor device is provided which detects the maneuvering position and/or at least one working parameter of the working device, namely its power consumption, working speed, rotational speed or its inclination, and/or at least one load parameter of the moving device, and a control device which reduces the frictional connection between the drive device and the working device and/or the drive power transmitted by the drive device to the working device in the maneuvering position and/or in case of the detection of a deviation of the at least one detected working parameter or load parameter from a set parameter value. | 11-03-2011 |
20110272997 | Method For Optimizing A Cutting Process In Road Milling Machines, As Well As Milling Machine For Machining Road Coverings - In a method for optimizing a cutting process in milling machines which are used to machine road coverings, which comprise a milling device fitted with milling tools which is sprayed with liquid in order to cool the milling tools, in addition to a drive motor, the following steps are provided: detection of the at least one parameter which is representative of the instantaneous power output of the milling device and controlling the amount of cooling liquid supplied according to the at least one parameter which is representative of the instantaneous power output of the milling device. | 11-10-2011 |
20120104828 | CAN-BASED SYSTEM TO CALCULATE THE WEIGHT OF MILLED MATERIALS - A milling machine adapted to remove milled material from a road. The milling machine may include a CAN based grade system operatively connected to a sensor and a milling drum, and a CAN Bus adapter operatively connected to the CAN based grade system. The milling machine may include a programmable logic controller operatively connected to the CAN Bus adapter. The milling drum selectively removes the milled material from the road, and the sensor provides a signal to the CAN based grade system, and the milling drum is positioned based on data from the CAN based grade system. | 05-03-2012 |
20120200138 | ADAPTIVE ADVANCE DRIVE CONTROL FOR MILLING MACHINE - An adaptive advance control system for a construction machine senses the reaction forces applied by the ground surface to a milling drum, and in response to the sensed changes in those reaction forces controls the rate of lowering the milling drum into the ground surface. Early and rapid detection of such changes in reaction forces allow the control system to aid in preventing lurch forward events of the construction machine. | 08-09-2012 |
20120286558 | Road Milling Machine And Method For Measuring The Milling Depth - A method is provided for measuring the milling depth of a road milling machine, the machine being operative to mill a ground surface with a milling roller lowered to a milling depth to create a milling track, the machine including at least one side plate located to at least one side of the milling roller to engage an untreated ground surface, and the machine including a stripping plate operative to be lowered onto the milling track generated by the milling roller. The method includes measuring the milling depth of the milling track, the measuring including detecting a measurement value of a ground engaging sensor engaging the milling track. | 11-15-2012 |
20130002002 | Adaptive Advance Drive Control For Milling Machine - A control system for a construction machine senses the reaction forces applied by the ground surface to a milling drum, and in response to the sensed changes in those reaction forces controls the rate of feeding the milling drum into the ground surface. | 01-03-2013 |
20130082507 | METHOD FOR OPERATING A GROUND MILLING MACHINE WITH HEIGHT-ADJUSTABLE MILLING ROLLER - The present invention relates to a method for operating a ground milling machine which comprises at least one height-adjustable milling roller, wherein the milling roller performs a tumbling movement (T′) which is controlled by way of open-loop and/or closed-loop control during lowering in operation. The present invention further relates to a control device for the closed-loop and/or open-loop control of this method, and also to a ground milling machine with such a control device. | 04-04-2013 |
20130099551 | Road Construction Machine, Leveling Device, As Well As Method For Controlling The Milling Depth Or Milling Slope In A Road Construction Machine - A control and switchover system is provided for controlling milling depth and/or slope of a milling drum of a road construction machine during a milling operation to create a milled surface. The system controls the milling depth and/or slope at least in part on a measurement made with a first sensor. Without interrupting the milling operation the system switches over the control of the milling depth and/or slope to control based at least in part on a measurement made with a second sensor. | 04-25-2013 |
20130140870 | CONTROL SYSTEM AND METHOD FOR ROAD CUTTING MACHINE - A system for controlling a cutting machine for cutting rumble strips in a road surface includes a rotatable cutting head, a cylinder for driving the cutting head out of and into contact with the road surface, and a controller. The controller is programmed to execute an input/output function for varying a proportional gain and an error amplification signal over a range of forward speed of the cutting machine. An I/O function is based on six predetermined cutting machine speed values; wherein a proportional gain and a depth increment are specified for each speed value. The respective speed values increase progressively. As an actual forward speed of the cutting machine varies between two of the six predetermined input speed values a linear interpolation is applied between the next lower and the next greater speed value to vary the instantaneous proportional gain and depth increment to be applied by the controller. | 06-06-2013 |
20130162003 | AUTOMATIC CUT-TRANSITION MILLING MACHINE AND METHOD - A milling machine is provided including: a frame; a plurality of ground engaging units; a plurality of vertically adjustable legs, the plurality of vertically adjustable legs comprising a front leg and a rear leg; a rotatable mill configured to mill a surface; a user interface configured to receive a milling grade depth and a cut-transition factor; a speed sensor configured to provide a ground speed of the milling machine; a vertical position sensor; and a controller coupled to the speed sensor, the vertical position sensor, and the user interface, the controller configured to lower a height of the rotatable mill to the milling grade depth by incrementally adjusting a length of at least one of the plurality of vertically adjustable legs according to the cut-transition factor, the speed sensor, and the vertical position sensor. | 06-27-2013 |
20130162004 | Automatic Rear Leg Control for Cold Planers - A method of maintaining a machine substantially level with a first surface is disclosed. The method may comprise determining an electronic travel path between a first point and a second point on a second surface, the second surface created by a tool removing a section of the first surface, and adjusting the length of the rear leg to maintain the frame substantially level to the first surface as the rear leg moves along the travel path from the first point to the second point in a forward direction. A machine for planing a road is disclosed that maintains a parallel orientation with the road during operation. | 06-27-2013 |
20130249271 | CONTROL MODULE FOR MILLING ROTOR - A control module for a milling rotor of a machine is provided. The control module comprises a processor and a controller. The processor is configured to receive a first signal, indicative of a direction of motion of the machine, a second signal, indicative of a relative height of a pair of side plates with respect to the milling rotor, and a third signal, indicative of a relative height of a moldboard with respect to the milling rotor. The processor processes the first signal, the second signal, and the third signal to generate a control signal. The controller is configured to receive the control signal from the processor and selectively disengage the milling rotor of the machine based on the control signal. | 09-26-2013 |
20130341996 | Self-Propelled Construction Machine - A self-propelling construction machine has a machine frame, an operating drum and a drum housing enclosing the operating drum. The drum housing is closed off by a front and/or rear sealing element and/or lateral sealing element. The construction machine has a mechanism for raising and lowering the at least one sealing element. A measuring unit is configured so that the measuring unit measures the forces acting on the sealing element when the sealing element encounters an obstacle. A control unit generates a control signal for raising the sealing element when the force measured by the measuring unit is larger than a predetermined limit value, so that the sealing element is raised. | 12-26-2013 |
20140035343 | Self-Propelled Construction Machine - A self-propelled construction machine has a machine frame and an operating drum for processing the ground surface, wherein the operating drum is positioned in a downwards open drum housing, that is closed on both sides by an edge protector, which is adjustable in height by an actuator for raising and/or lowering the edge protector. A control unit comprises a sensor for registering the distance a between a reference point on the edge protector and the ground surface. Furthermore, the control unit is configured so that when the distance between reference point and ground surface falls below a predetermined minimum distance, the actuator is switched from a floating setting, so that the edge protector is raised. As a result, the edge protector tightly closes the drum housing at the sides without there being a risk that the edge protector can be entrenched in loose substrate. | 02-06-2014 |
20140110990 | Self-Propelled Building Machine - A road cutting machine has a machine frame and at least one left-hand running gear and at least one right-hand running gear. A device is provided for raising or lowering the running gears resting on the ground, in relation to the machine frame, and also a control unit is provided for activating the device for raising and lowering the running gears, so that the height of the running gears can be adjusted to the machine frame. The control unit comprises sensors for detecting changes in the height of the ground to be covered by the running gears in relation to the machine frame, whereby the control unit contains a control mode for initiating actions in the control system for adjusting the height of the running gears. The control unit is configured in such a way in the control mode that if a change is detected in the height of the ground, the respective running gear or the respective running gears are raised or lowered so as to compensate any lateral tilting due to a change in the height of the ground. | 04-24-2014 |
20140167486 | Sensor Mounting System For Road Milling Machine - A road milling machine includes a sensor mounting system having a first mounting member, which is attached to a first machine component and supports a portion of a position sensor, and a second mounting member attached to a second machine component having a pivotable attachment to a machine frame. An extension member has a first end attached to the second mounting member and a second end including an attachment flange. A unitary ski member has a first end attached to another portion of the position sensor and a second end pivotably attached to the attachment flange. The unitary ski member includes a ground engaging surface that is positioned inboard relative to first and second side plates, which flank a rotor, and has a pivot movement compensation curve. A controller is configured for determining a milling depth of the rotor from measurements obtained by the position sensor. | 06-19-2014 |
20140191560 | Method For Optimizing A Cutting Process In Road Milling Machines, As Well As Milling Machine For Machining Road Coverings - In a method for optimizing a cutting process in milling machines which are used to machine road coverings, which comprise a milling device fitted with milling tools which is sprayed with liquid in order to cool the milling tools, in addition to a drive motor, the following steps are provided: detection of the at least one parameter which is representative of the instantaneous power output of the milling device and controlling the amount of cooling liquid supplied according to the at least one parameter which is representative of the instantaneous power output of the milling device. | 07-10-2014 |
20150054331 | Self-Propelled Construction Machine And Method For Operating A Self-Propelled Construction Machine - A self-propelled construction road milling machine, includes a machine frame and a milling drum housing, in which a milling drum is arranged. The machine includes a drive unit with which the height of the scraper blade of a scraper device can be adjusted in relation to the milling drum. A control unit for the drive unit adjusts the height of the scraper blade and a measurement device measures the distance between the lower edge of the scraper blade and the milled material. The control unit is designed in such a way that the scraper blade is height-adjustable depending on the height of the milled material remaining in the milled track. The control unit ensures that, on the one hand, the milled material can come out of the milling drum housing unimpeded behind the milling drum in the direction of work and, on the other hand, that the milling drum housing is shut above the material that is coming out. On the one hand, an unimpeded operation of the milling machine is thus ensured and, on the other hand, a clean result of the work is achieved. | 02-26-2015 |
20150115689 | METHOD OF MILLING ASPHALT - In a method of milling asphalt, a relative elevation of an unmilled asphalt pavement surface adjacent to an area to be milled is sensed with respect to a milling machine body and rotatable milling drum of the milling machine. An elevation of a bottom surface of the rotatable milling drum is determined using a computer processor. Based on a map, stored in a computer memory, of a design surface specifying a design elevation of a milled surface over the area to be milled, the elevation of the milling machine body and the rotatable milling drum are automatically adjusted such that the rotatable milling drum mills the asphalt surface to the design elevation over the area to be milled. | 04-30-2015 |
20150137577 | Road Milling Machine And Method For Measuring The Milling Depth - A method is provided for measuring the milling depth of a road milling machine, the machine being operative to mill a ground surface with a milling roller lowered to a milling depth to create a milling track, the machine including at least one side plate located to at least one side of the milling roller to engage an untreated ground surface, and the machine including a stripping plate operative to be lowered onto the milling track generated by the milling roller. The method includes measuring the milling depth of the milling track, the measuring including detecting a measurement value of a ground engaging sensor engaging the milling track. | 05-21-2015 |
20150368867 | Road Milling Machine For The Treatment Of Road Pavements, As Well As Method For Pivoting A Travelling Drive Unit Of A Road Milling Machine - A road milling machine includes a rear wheel or track mounted on a pivot arm such that the wheel or track is movable between a first outer end position projecting laterally relative to the machine frame, and a second inner end position which permits milling close to an edge. A travel drive of the rear wheel or track provides a driving force to move the wheel or track between the end positions. | 12-24-2015 |
20160010292 | HIGH-PRODUCTION ROUTING DEVICE | 01-14-2016 |
20160017552 | Self-Propelled Building Machine And Method For Operating A Building Machine - A self-propelled building machine, especially a road cutting machine or a surface miner, has a machine frame and a chassis, comprising running gears resting on the ground. In addition, the present invention relates to a method for operating such a building machine. In an operating mode for adjusting the working depth of the working device the imposed weight applied by the building machine on the running gear is measured, whereby depending on the imposed weight either a controlled or an uncontrolled lowering of the building machine is indicated. A measuring device comprises a sensor for measuring the weight imposed by the building machine on at least one of the running gears. Depending on the measured imposed weight, a signal is generated indicating an uncontrolled lowering of the building machine, if the imposed weight falls short of a predetermined value and/or a signal indicating a controlled lowering of the building machine is generated if the imposed weight reaches or exceeds a predetermined threshold value. | 01-21-2016 |
20160053445 | Automotive Milling Machine, As Well As Method For Discharging Milled Material - In an automotive milling machine, comprising a machine frame, comprising a controller for the travelling and milling operation, comprising a working drum, comprising a transport conveyor for discharging the milled material milled off by the working drum onto a loading surface of a transport vehicle comprising a rear wall, where the transport conveyor is slewable, relative to the machine frame, about a first axis extending essentially horizontally under an elevation angle, and sideways about a second axis extending orthogonally to the first axis under a slewing angle, it is provided for the following features to be achieved: a detection device is arranged on the bottom side of the transport conveyor, where said detection device is used to initiate an activation signal in case of the transport conveyor approaching an object, in particular, the rear wall of the loading surface. | 02-25-2016 |
20160053446 | Cold Planer Spray System and Method - A system and method for operating a cold planer includes a method for operating a cold planer. In a method, a signal indicative of an operating state is used to determine an operating condition, which is a basis for deciding which spray banks from a plurality of spray banks should be activated. Thereafter, a water flow required to operate the spray banks is estimated and a pump command signal is determined. The pump is operated and a water pressure in a main manifold is monitored such that the pump is controlled using a closed-loop control scheme that receives the water pressure as feedback to maintain a desired water pressure within the main manifold. | 02-25-2016 |
20160053447 | Milling Machine With Location Indicator System - A construction machine apparatus includes a plurality of ground engaging supports, a machine frame supported from the ground engaging supports and a milling drum supported from the machine frame. A milling drum location detection system is configured to determine a drum location in an external reference system. A location indicator system includes a memory configured to store information identifying a location of one or more areas to be avoided in the external reference system, and a controller configured to compare the drum location to the location of the one or more areas to be avoided, and to provide an output corresponding to a proximity of the milling drum to the location of the one or more areas to be avoided. | 02-25-2016 |
20160060826 | Self-Propelled Construction Machine And Method For Controlling A Self-Propelled Construction Machine - The invention relates to a self-propelled construction machine, in particular a road milling machine, which possesses an undercarriage which has front and rear—in the working direction—wheels or travelling gears, a machine frame which is borne by the undercarriage, and a working means. Furthermore, the invention relates to a method for controlling a self-propelled construction machine, in particular a road milling machine. The invention is based on the detection of objects O situated in the ground at a time at which the objects O can be readily detected. The construction machine according to the invention possesses a means for generating predictive object signals which are characteristic of the position of objects which lie in a portion of the ground which lies in the working direction A in front of the working region of the working means. Furthermore, the construction machine has a signal processing means which receives the object signals, which means is configured such that during the advance of the construction machine object signals relating to the working means are obtained from the predictive object signals, these signals being characteristic of the position of the objects in a portion of the ground which relates to the working region of the working means. | 03-03-2016 |
20160060827 | Self-Propelled Road-Milling Machine - The invention relates to a self-propelled road-milling machine for doing work on surfacings on the ground, and in particular carriageways. The road-milling machine according to the invention is characterised by a signalling arrangement which has at least one control unit for the entry of at least two different states of operation by the driver of the road-milling machine and at least one visual indicator or display unit to indicate or display for the driver of the transporting vehicle the at least two states of operation which are preset with the control unit by the driver of the road-milling machine. The first state of operation may be a request for the transporting vehicle to be braked or stopped and the second state of operation may be a request for the transporting vehicle to be started or to continue travelling. In a preferred embodiment of the visual indicator or display unit, the request for braking or stopping is shown as a cross and the request for starting or continued travel as an arrow. | 03-03-2016 |
20160060828 | COLD PLANER HAVING INDEPENDENTLY CONTROLLED CONVEYORS - A conveyor system is disclosed for use with a cold planer having a milling drum. The conveyor system may have a primary conveyor configured to receive material from the milling drum, a first motor configured to drive the primary conveyor, a secondary conveyor configured to receive material from the primary conveyor, and a second motor configured to drive the primary conveyor. The conveyor system may also have a controller configured to selectively adjust a speed of the second motor independent of a speed of the first motor. | 03-03-2016 |
20160108731 | Drum Housing For A Working Drum Of A Construction Machine Or Mining Machine, Construction Machine Or Mining Machine, As Well As Method For Monitoring The Condition Of A Working Drum Of A Construction Machine Or Mining Machine - In a drum housing for a working drum of a construction machine or mining machine, said working drum being provided with tools and rotating about a drum axis, with a housing shell which at least partially encloses the circumference of the working drum, and with at least one inspection opening for a monitoring device arranged in the housing shell, wherein said monitoring device inspects the condition of the working drum or the tools thereof, it is provided for the following features to be achieved: a closing mechanism is arranged on the outside of the housing shell, said closing mechanism enabling closure of the at least one inspection opening. | 04-21-2016 |
20160160455 | Self-Propelled Construction Machine And Method For Operating A Self-Propelled Construction Machine - A self-propelled construction machine includes a machine frame and an operating drum arranged in a drum housing which is open downwards and is closed on both sides by an edge protector which is adjustable in height. A control assembly determines a reference value for the height of the ground surface relative to the machine frame on which the edge protector rests in a floating position, the height of the edge protector relative to the machine frame and the lowering speed of the edge protector. Furthermore, the control assembly is configured such that the height of the edge protector relative to the machine frame is determined at the point in time at which the lowering speed of the edge protector is less than a specified limit value. Preferred embodiments of the machine furthermore detect the edge protector sinking into the ground, and/or prevent the edge protector from digging into the ground. | 06-09-2016 |
20160168991 | Floor Milling Machine | 06-16-2016 |
20160177521 | Method For Determining A Mass Of Milled Material And Ground Milling Machine For Carrying Out Said Method | 06-23-2016 |
20160177522 | Construction Machine, Particularly Road Milling Machine, And Method For Compensating For Ground Unevenness For Such A Construction Machine | 06-23-2016 |
20160186391 | Ground Milling Machine And Method For Adjusting The Stripping Plate Of A Ground Milling Machine - The present invention relates to a ground milling machine, particularly a road milling machine, comprising a machine frame supported by travelling devices, a drive engine and a milling device arranged in a milling drum box, the milling drum box comprising a stripping plate which is height-adjustable by means of at least a first and a second actuator. Further, the present invention relates to a method for adjusting a stripping plate of a milling drum box of a ground milling machine, particularly a road milling machine. For the purpose of a reliable adjustment of the stripping plate, the present invention proposes using a monitoring device for detecting the adjustment of a first actuator and a control device for controlling the adjustment of a second actuator depending on the adjustment of the first actuator. | 06-30-2016 |
20160186392 | Self-Propelled Road Milling Machine For Working Road Surfaces, As Well As Method For Working Road Surfaces With A Road Milling Machine - In a self-propelled road milling machine for working road surfaces, comprising a machine frame, comprising a milling drum mounted to rotate and extending in axial direction transverse to the direction of travel, and a milling drum housing enclosing the milling drum, where the milling drum comprises multiple tools circumferentially preferably arranged in the shape of a helix, where the tools, except for the axial peripheral area, feature a specified mutual line spacing, it is provided for the following features to be achieved: an oscillation drive exercises an oscillation stroke on the axis of the milling drum moving to and fro in axial direction relative to the machine frame, where the rotating movement of the tools is superimposable with an axial movement parallel to the axis of the milling drum, the stroke of which is adjustable to the line spacing between two axially neighbouring tools. | 06-30-2016 |
20170233959 | SELF-PROPELLED CONSTRUCTION MACHINE AND METHOD FOR OPERATING A SELF PROPELLED CONSTRUCTION MACHINE | 08-17-2017 |
299100600 | Sidewall working (e.g., longwall-type) | 21 |
20100194175 | METHOD AND DEVICE FOR MONITORING A CUTTING EXTRACTION MACHINE - The invention relates to a method and a device for monitoring the travel path of a cutting extraction machine ( | 08-05-2010 |
20100276982 | Method and apparatus for maintaining longwall face alignment - A mining machine includes a light source and a roof support guide for detecting the relative angular alignment between the mining machine and the roof support. The light source in the form of a laser on the mining machine, directed toward the roof support. The roof support guide is on the roof support above the mining machine, so that when the alignment between the mining machine and the roof support is as desired, light from the light source falls in a predetermined location relative to the roof support guide. When the mining machine is not in proper alignment with the roof support, the light source does not fall within the predetermined location relative to the roof support guide. When a mining machine operator detects that the light from the light source is not falling within the predetermined location relative to the roof support guide, the operator then adjusts the tilt of the mining machine using hydraulic jacks to cause the light from the light source to again fall within the predetermined location relative to the roof support guide. | 11-04-2010 |
20100327650 | Method for Automatically Creating a Defined Face Opening in Longwall Mining Operations - A method for automatically producing a defined face opening in a longwall mining operation, in underground coal mining, having a face conveyor, at least one extraction machine and hydraulic shield support frames. Inclination sensors are disposed on at least three of the four main components of each shield support frame, such as floor skid, gob shield, support connection rods and gob-side area of the top canopy. From ascertained inclination data, by comparison with base data defining a geometrical orientation of the components and a movement thereof during stepping, a respective shield height of the shield support frames perpendicular to a bed thereof is calculated. From further sensors on the extraction machine, a cutting height thereof is acquired as a face opening. In terms of a location-synchronous analysis, for possible adjustment purposes the cutting height is compared with the shield height when the shield support frame, which trails the extraction machine with a time delay, has reached the position to which relates that cutting height which was used in the comparison. | 12-30-2010 |
20110001348 | Method for Controlling Longwall Operations Using Boundary Layer Recognition - A method for controlling longwall mining operations, having a face conveyor, at least one extraction machine, and a hydraulic shield support, in underground coal mining. At least one sensor is disposed on the shield support frames for acquiring solid-borne noise data generated by the engagement of the extraction machine in coal and/or country rock. A cut of the extraction machine into the country rock is determined in a downstream computer on the basis of recorded vibration data that corresponds to the generated solid-borne noise. | 01-06-2011 |
20110115277 | METHOD FOR STEERING A MINING MACHINE CUTTER - A control system monitors the angle of each ranging arm, with respect to the mainframe of the machine. While the machine is in a defined zone along the face, if the angle of the arm is detected to be lower than a parameter defined set-point called the undercut limit, the control system does not allow the arm to be lowered further. When entering the run of face from either gate end, if either of the ranging arms are below the set point, the horizontal movement of the shearer is stopped, and an alarm message is generated, and a warning light begins to flash, alerting the operator that he must raise the arm before horizontal movement of the shearer can be enabled. | 05-19-2011 |
20110248548 | Method of Setting an Automatic Level Control of the Plow in Plowing Operations of Coal Mining - A method of setting an automatic level control of a plow in longwall mining operations. By means of a boom control mechanism, a control angle for setting motion of the plow, which is guided on a face conveyor, in an exploitation direction as a climbing, plunging or neutral motion is set. For each plow stroke, a cutting depth and the control angle, derived as a differential angle between inclinations of the face conveyor and of a top canopy of a shield support frame are determined. In a calculating unit, a face height change per plow stroke is calculated therefrom and a face height, as a projected height, is associated with each face position of the face conveyor. When a shield support frame that trails behind the plow in terms of a time delay reaches a respective face position, an actual height of the face is calculated and compared with the store projected height. For subsequent plow strokes, a height differential value between the projected and actual heights, determined for a respective face position, in the sense of a self-learning effect of the calculating unit when the control angle that is to be set to achieve a projected height of the face is prescribed, is taken into consideration. | 10-13-2011 |
20110254345 | CONTINUOUS SURFACE MINING SYSTEM - A surface mining system removes material from a surface mining block that has a substantially vertical and laterally extending mining face. The surface mining system generally includes a miner moveable in a lateral direction along the mining face, a face conveyor extending along the mining face, and conveyor translation devices associated with the face conveyor and operable to move the face conveyor toward the mining face as material is removed. The miner includes a rotating cutting member mounted to an end of a vertically ranging cutting arm and operable to remove material from the mining block. The face conveyor includes a discharge portion and is operable to convey material removed from the mining block toward the discharge portion. Each conveyor translation device includes a secured configuration substantially fixed with respect to the mining face and an unsecured configuration moveable with respect to the mining face. | 10-20-2011 |
20120074759 | SAFETY DEVICE FOR THE MOVABLE EXCAVATION DEVICES IN AN UNDERGROUND LONGWALL MINE - A safety device which detects personnel data of persons located in the detection zone thereof, said safety device operating continuously or in regular cycles and reporting to the central controller. The personnel data of all persons located in the longwall mine are stored in a central storage device of the central control and constantly compared to the detected personnel data. If a discrepancy arises between the saved personnel data and the detected personnel data, the central control unit executes a command which halts all functions of the excavation devices and interrupts all moving functions, said command being directed at the switching devices of the associated excavation devices. | 03-29-2012 |
20130057044 | MINING MACHINE WITH DRIVEN DISC CUTTERS - A mining machine includes a cutting mechanism with an arm, and a substantial weight of more than a thousand pounds attached to the arm. The mining machine also includes a first disc cutter adapted to engage the material to be mined and mounted on a first disc cutter assembly for eccentrically driving the first disc cutter, the first disc cutter assembly being mounted within the substantial weight. The mining machine also includes at least a second disc cutter spaced apart from the first disc cutter assembly and adapted to engage the material to be mined, and mounted on a second disc cutter assembly for eccentrically driving the second disc cutter, the second disc cutter assembly being mounted within the substantial weight. | 03-07-2013 |
20140203621 | SYSTEM FOR CONTROLLING SPEED OF TRAVEL IN A LONGWALL SHEARER - A shearer system for removing material along a mineable distance relative to a mining environment includes a rail assembly to support movement of a shearer carriage thereon. The system further includes a haulage motor structured and arranged to move the shearer carriage along the rail assembly. The system has a rotatably driven cutter that is positionable relative to the shearer carriage. The system further includes an actuator supported by the shearer carriage for changing a cutting height of the cutter. The system further includes a controller that can control a velocity of the shearer carriage based on a translation speed of the cutter, a maximum speed of the shearer carriage, a current cutter height, and a desired cutter height. Optionally, the controller can further control the velocity of the shearer carriage based on a predetermined stopping distance of the shearer carriage. | 07-24-2014 |
20160024922 | ENSURING WORKING CONDITIONS ALONG A LONGWALL FACE - A longwall installation unit is disclosed. The longwall installation unit may form a longwall installation assembly together with other longwall installation units of the same kind. The longwall installation assembly may extend along the longwall face in a longwall mine. The longwall mine may have a compressor device. The longwall installation unit may have a dilution gas nozzle configured to be fluidly connected to the compressor device. | 01-28-2016 |
20160061031 | PAN PITCH CONTROL IN A LONGWALL SHEARING SYSTEM - A system and corresponding method of monitoring a longwall shearing mining machine in a longwall mining system, where the shearing mining machine includes a shearer having a cutter drum, the method includes obtaining, by a processor, desired pitch angle information, and receiving, by the processor, a pitch angle indicative of a current pitch position of the shearer. The method also includes determining, by the processor, whether the pitch angle is within a desired pitch angle range, and controlling, by the processor, a position of the cutter drum based on whether the pitch angle is within the desired pitch angle range. The desired pitch angle range is based on the desired pitch angle information. | 03-03-2016 |
20160123145 | CONTROL METHOD FOR LONGWALL SHEARER - A method of controlling a shearer is disclosed. The shearer may be configured to travel along a longwall face to extract material with a first cutting drum and a second cutting drum. The method may include setting a first cutting profile including a plurality of desired positions (Di) to be approached by the first cutting drum in a first travel direction (E). Further, the method may include determining a plurality of actual advancing vectors (vi) indicating a change of a position of the shearer resulting from advancing the shearer towards the longwall face. The method may also include determining a plurality of shearer orientations (Oi) along the longwall face. In addition, the method may include generating a second cutting profile to be approached by at least one of the first cutting drum and the second cutting drum in a second travel direction (F) of the shearer. | 05-05-2016 |
299100700 | Of advancing material handling means or roof support | 8 |
20100320827 | Method for the Controlled Maintaining of a Distance Between the Top Canopy and the Coal Face in Longwall Mining Operations - A method for maintaining, in a controlled manner, a top canopy/coal-face distance expedient for rock mechanics, in longwall mining operations in underground coal mining, using a face conveyor, at least one extraction machine, and a hydraulic shield support frame. Inclination sensors are disposed on at least three of the four main components of the shield support frame, including floor skid, gob shield, support connection rods and gob-side area of the top canopy. An inclination of the top canopy and floor skid are ascertained via the sensors. From the ascertained inclination data, in a computer, the effects on a top canopy/coal face distance are determined when changes in an angle of inclination of the top canopy occur. An automatic adjustment of decisive cycle parameters of the shield support frame are carried out, wherein the work cycle comprises retraction, advancement and setting processes. | 12-23-2010 |
20110049964 | Method for Controlling Longwall Mining Operations - A method for controlling a longwall mining operation, including a face conveyor, at least one extraction machine, and a hydraulic shield support, in underground coal mining. Using inclination sensors disposed on at least three of the four main components of each shield support frame, such as floor skid, gob shield, support connection rods, and gob-side region of the top canopy, the inclination of the shield components relative to horizontal is ascertained in the direction of step. In a computer, the ascertained inclination data is compared with base data stored in the computer that defines the geometrical orientation of the components and their movement during stepping. From the comparison, a respective height of the shield support frame, at the forward end of the top canopy, is calculated as a measure for the face opening. | 03-03-2011 |
20110254346 | ADVANCING LONGWALL SYSTEM FOR SURFACE MINING - A surface mining system for removing material from a mining face generally includes a conveyor extending substantially parallel to the mining face, a miner supported by and moveable along the conveyor, and a conveyor translation device associated with the conveyor and operable to move the conveyor and the miner toward the mining face. A method for advancing a surface mining longwall system generally includes moving the longwall shearer along a face conveyor, operating load translation devices to move the face conveyor and the longwall shearer toward the mining face, resetting a first group of load translation devices, and then resetting a second group of load translation devices. A load translation device generally includes an actuator, a ground drilling device coupled to and moveable with a portion of the actuator, and a frame coupled to and moveable with another portion of the actuator. | 10-20-2011 |
20120098325 | Method for the Automated Production of a Defined Face Opening by Means of Slope-Assisted Radar Navigation of the Roller of a Roller Cutter Loader - A method for automated production of a defined face opening in longwall mining operations in underground coal mining, comprising a face conveyor, disk shearer as extraction machine, and hydraulic shield support frame. At least one radar sensor is provided on a main body of the disk shearer. A distance between an upper edge of the main body and an underside of a top canopy of the shield support frame below which the main body travels during extraction work is measured, and is input into a computer as an actual value for a passage height of the disk shearer below the shield support frame. This actual value is compared with a target value and, if a deviation is determined, control commands are generated for adapting a cutting height of at least one of two cutting disks of the disk shearer. | 04-26-2012 |
20120104829 | Hydraulic Circuit For Longwall Mining - A hydraulic circuit for longwall support for use in underground mining for supporting a longwall by means of a plurality of support shields comprises a pressure monitoring device in the pressure line between the load maintaining valve and the shield control valve. Said pressure monitoring device can be a device for monitoring the piston position of the shield control valve which device signals a deviation of the set position predetermined by the shield control device from the measured actual position of the piston of the shield control valve in the form of a deviation signal. It may also be a pressure sensor which signals the deviation of the set pressure predetermined by the shield control device from the measured actual pressure in the form of a deviation signal. Signaling can be acoustic or optical. | 05-03-2012 |
20150061352 | FACE EQUIPMENT COMPRISING HOSE LEVELS PLACED BETWEEN THE FACE CONVEYOR AND THE SHIELD SUPPORT FRAMES - A face equipment for mechanical extraction in longwall mining, in particular in the underground hard coal mining industry, includes a face conveyor ( | 03-05-2015 |
20150069814 | FACE EQUIPMENT COMPRISING HOSE LEVELS PLACED ON THE SHIELD SUPPORT FRAMES OF SAID FACE EQUIPMENT - A face equipment for mechanical extraction in longwall mining, in particular in the underground hard coal mining industry, includes a face conveyor ( | 03-12-2015 |
20220136390 | METHOD AND DEVICE FOR MONITORING OPERATION OF A MINING MACHINE UNIT - The present invention pertains to a method for monitoring operation of a mining machine unit, particularly of a longwall mining system, having a shield unit connected to a material removing unit by means of an actuator for adjusting a distance between the shield unit and the material removing unit, the method comprises the steps of determining a position change of the shield unit during an actuating operation of the actuator; and a step of detecting a malfunction of the mining machine unit based on the determined position change. | 05-05-2022 |
299100800 | Of rotary cutter with advance direction coincident or parallel to rotary axis | 1 |
20140139007 | Method and arrangement for designing drilling plan - A method for designing a drilling plan for rock cavern excavation, which defines in advance for a round to be drilled in a tunnel face at least the locations of drill holes in a predetermined coordinate system, uses the drilling plan created by means of a computer-assisted design program. The method determines pull-out of a round on the basis of the locations of the hole ends and the topography of the rock remaining after a round blast, and designs or modifies the drilling plan for a subsequent round on the basis of the thus determined pull-out. | 05-22-2014 |