Class / Patent application number | Description | Number of patent applications / Date published |
212272000 | HAVING MEANS TO PREVENT OR DAMPEN LOAD OSCILLATIONS | 41 |
20090008351 | Crane control, crane and method - The present invention shows a crane control of a crane which includes at least one cable for lifting a load, wherein at least one sensor unit is provided for determining a cable angle relative to the direction of gravitational force. Furthermore, there is shown a crane control for driving the positioners of a crane which includes at least one first and one second strand of cables for lifting the load, with a load oscillation damping for damping spherical pendular oscillations of the load, wherein first and second sensor units are provided, which are associated to the first and second strands of cables, in order to determine the respective cable angles and/or cable angular velocities, and the load oscillation damping includes a control in which the cable angles and/or cable angular velocities determined by the first and second sensor units are considered. Furthermore, a corresponding crane and a method are shown. | 01-08-2009 |
20090194497 | Gantry with a Buffering Structure - A gantry with a buffering structure cooperates with a base and comprises a gantry and a buffering structure. Both ends of the gantry are provided with a connecting portion, respectively. One of the connecting portions is fixed on the base, and the buffering structure is disposed between the other connecting portion of the gantry and the base. Thereby, when the gantry moves along with the base, the gantry can absorb the inertial strength caused by displacement and the deformation caused by thermal expansion and contraction by the flexibility of the buffering structure. | 08-06-2009 |
20100006530 | METHOD FOR CONTROLLING THE SLEWING MOVEMENT OF THE ROTARY PART OF A TOWER CRANE - A rotary part of a crane is associated with an electric slewing mechanism including at least one geared electric motor unit of which the electric motor is powered in such a way as to produce a slewing torque having a certain maximum value. When the crane is in use and for conditions such as windspeed greater than a given value, jib length greater than a given value and moment of the lifted load greater than a given value, the maximum value of a slewing torque produced by the electric motor is increased. The crane thus becomes easier to drive, particularly in the phases during which the jib is adopting a “windward trend”. | 01-14-2010 |
20110006023 | METHODS FOR CONTROLLING A DRIVE OF A CRANE - The present invention comprises a method for the control of a drive of a crane, in particular of a slewing gear and/or of a luffing mechanism, wherein a desired movement of the boom tip serves as an input value on the basis of which a control parameter for the control of the drive is calculated, characterized in that the oscillation dynamics of the system comprising the drive and the crane structure are taken into account in the calculation of the control parameter to reduce natural oscillations. The present invention furthermore comprises a method for the control of a hoisting gear of a crane, wherein a desired hoisting movement of the load serves as an input value on the basis of which a control parameter for the control of the drive is calculated. | 01-13-2011 |
20110006024 | CRANE CONTROL FOR THE CONTROL OF A HOISTING GEAR OF A CRANE - The present invention relates to a crane control for the control of a hoisting gear of a crane which takes account of oscillation dynamics based on the elasticity of the hoist rope on the control of the hoisting gear and reduces them by a suitable control of the hoisting gear. | 01-13-2011 |
20110163057 | DEVICE FOR A CRANE FOR MOVEMENT CONTROL OF A HOISTING WIRE, AND USES THEREOF - A device associated with a crane is described for the control of unwanted movements of a load that is connected to a hoisting line ( | 07-07-2011 |
20130213919 | Method for Reducing Dynamic Loads of Cranes - A method for reducing resonant vibrations and dynamic loads of cranes, whose horizontal and vertical motion of the pay load are controlled by a boom winch controlling the luffing motion of a pivoting boom and a hoist winch controlling the vertical distance between a boom tip and the load. Where the method includes determining the resonance frequencies of the coupled crane boom and load system, either experimentally or theoretically at least from data on inertia of the boom and stiffness of at least a boom rope, a hoist rope, a pedestal and an A-frame. The method further includes automatically generating a damping motion in at least one of said winches, that counteracts dynamic oscillations in the crane, and adding this damping motion to the motion determined by a crane operator. | 08-22-2013 |
20140263142 | Elastomeric Load Compensators for Load Compensation of Cranes - For load compensation, different kinds of elastomeric load compensators are placed at various locations on the crane for increased flexibility and for shock and vibration absorption. The elastomeric load compensators employ elastomeric tension elements, elastomeric torsion elements, or elastomeric shear elements. Elastomeric tension elements can be simply inserted in series with the main hoist rope. An elastomeric load compensator employing elastomeric torsion elements is mounted to the underside of the boom for receiving the live end of the main hoist rope. A single stack of elastomeric shear elements is suitable for mounting a hoist or winch or an idler sheave to the crane structure. For additional load compensation, the hoist, winch, and idler sheaves are mounted on rails for increased displacements under heave loads, and the increased displacements are compensated by elongated elastomeric tension elements or multiple elastomeric tension, torsion or shear elements in series. | 09-18-2014 |
20160194183 | METHOD FOR REDUCING DYNAMIC LOADS OF CRANES | 07-07-2016 |
212273000 | Antisway (i.e., horizontal movements) | 32 |
20080210652 | Hydraulic Motors for Actuating and Controlling an Anti-Swing System in Container-Handling Granes - The invention relates to hydraulic motors for actuating and controlling an anti-swing system in container-handling cranes. Container-handling cranes pose the following problem, namely that, when the trolley moves, the cables supporting the load spreader oscillate longitudinally in relation to the aforementioned movement. Systems currently used to reduce said swinging movement are inconvenient because (i) they comprise numerous power transmission elements, thereby generating maintenance problems, and (ii) the main two functions thereof are performed separately, i.e. movement transmission and oscillation reduction. The aforementioned problems can be resolved with an autonomous, independent drive system using hydraulic motors, thereby rendering the power transmission drive chain simple, robust, reliable and easy to maintain. In addition, the motors perform the main functions simultaneously, i.e. producing the movement and reducing the oscillations. According to the invention, pressure-limiting devices are used to dampen the pressure points applied to the motors during the swinging movement. The system balances the pressure on the motors and, in this way, offsets the oscillating movement. | 09-04-2008 |
20100012611 | Crane or digger for swinging a load hanging on a support cable with damping of load oscillationsoo - The invention concerns a crane or excavator for traversing a load hanging from a load cable, which is movable in three spatial directions. The crane or excavator has a computer-controlled regulation for the damping of load swings, which contains a path planning module, a centripetal force compensation unit and at least one shaft regulator for the rotating gear, one shaft regulator for the luffing gear and one shaft regulator for the lifting gear. | 01-21-2010 |
20100252523 | TRANSPORTING APPARATUS FOR TRANSPORTING LOADS TO STORAGE PLACES, IN PARTICULAR IN A HIGH-BAY WAREHOUSE - A transporting apparatus for transporting loads to storage places, in particular in a high-bay warehouse, with a crane trolley and with a load-picking-up means which is suspended on the crane trolley, has mechanical damping means for damping pendulum oscillations of the load-picking-up means while the crane trolley is at a standstill. | 10-07-2010 |
20110006025 | CRANE FOR HANDLING A LOAD HANGING ON A LOAD CABLE - The present invention relates to a crane for handling a load hanging on a load cable, comprising a slewing gear for rotating the crane, a luffing gear for luffing up the boom, and a hoisting gear for lowering or lifting the load hanging on the load cable, with a control unit for calculating the actuation of slewing gear, luffing gear and/or hoisting gear, wherein the calculation of the actuation commands for actuating slewing gear, luffing gear and/or hoisting gear is effected on the basis of a desired movement of the load indicated in Cartesian coordinates. | 01-13-2011 |
20110272375 | Crane and Method for Erecting the Crane - The present disclosure relates to a method for telescoping a main boom consisting of a telescopic boom, which is guyed via a spatial boom guying, wherein the erected main boom is guyed during the telescoping operation by means of the spatial guying. Furthermore, the present disclosure relates to a crane with a telescopable main boom, a spatial guying and a crane controller, wherein the crane controller includes a means for determining the necessary guy dimension of the spatial guying in dependence on the current main boom length during the telescoping operation. | 11-10-2011 |
20120132604 | CONTROLLING METHOD, SYSTEM AND DEVICE FOR HOOK DEVIATION - A controlling method for a hook deviation to regulate the deviation angle of a telescopic crane hook, involves following steps: A. Detecting the deviation angle and deviation direction of a rope, which is linked to the hook, in the horizontal plane relative to the direction of gravitational force; B. Judging whether the deviation angle is more than the predetermined value, if the deviation angle is more than the predetermined value, then turning to step C, and if the deviation angle is less than the predetermined value, then turning to step A; C. Compensatively controlling the deviation angle of the hook according to the deviation angle and direction. And a controlling system for the hook deviation and a controlling device for the hook deviation are provided. The method or system or device enables the detection of the deviation angle and direction of the hook in a quick and precise manner, and the compensatory control of the deviation angle of the hook is performed according to the detected deviation angle and direction, thus it avoids overdependence on human factor and reduces potential safety risks. | 05-31-2012 |
20120168397 | HOIST APPARATUS AND CONTROL METHOD THEREOF - A hoist apparatus including a hoist and control method are provided. The hoist includes a cable to which an object is connected, a motor, a drum to wind or unwind the cable in linkage with rotation of the motor, a pulley connected to the drum via the cable to guide the cable to the drum, and an angle detection assembly to detect an angle of the cable between the pulley and the object. A control unit detects whether the object shakes based on the angle of the cable and controls shaking restriction if shaking of the object is detected. User force and angle of the cable are detected and movement of the object is controlled, the object is easily moved by the user, auxiliary force is applied to the object, and vibration of the object is minimized. | 07-05-2012 |
20130001181 | SYSTEM FOR MOVING A LOAD - A system for moving a load includes a load carrier, a running rail, a traveling crab configured to move the load carrier along the running rail, a lifting device connecting the load carrier to the traveling crab and configured to move the load carrier upwardly and downwardly, and a bracing device configured to brace the load carrier. | 01-03-2013 |
20130032561 | CRANE CONTROL SYSTEMS AND METHODS - The various embodiments of the present disclosure relate generally to crane control systems. An exemplary embodiment of the present invention provides a crane control system comprising a real-time position-location module, an on-off controller module, and an input-shaper module. The real-time position-location module generates a position signal indicative of the distance between crane trolley and a desired location of safety. The on-off controller module maps the position signal to a velocity command signal, wherein the velocity command signal comprises instructions for the crane trolley to move in a vector relative to the desired location in at least a first velocity only if the distance between the crane trolley and the desired location is greater than a cut-off threshold 150. The at least a first velocity is a substantially constant. The input shaper module manipulates the velocity command signal mapped by the on-off controller module to dampen payload oscillations. | 02-07-2013 |
20130161279 | CRANE CONTROL APPARATUS - The present invention relates to a crane control apparatus for a crane where a load is suspended on a crane cable from a cable suspension point of the crane, comprising an observer for estimating at least the position and/or velocity of the load from at least one sensor input of a first sensor by using a physical model of the load suspended on the crane cable, whereby the physical model of the observer uses the load position and/or the load velocity as a state variable. | 06-27-2013 |
20130334157 | ARRANGEMENT FOR DAMPING OSCILLATION OF LOADING MEMBER IN CRANE - An arrangement for damping oscillation of a loading member in a crane includes a trolley, a hoisting mechanism, hoisting ropes, and a loading member. The arrangement includes a vertical guide projection arranged in an upper part of the loading member, and a guide part arranged in the trolley and receiving the guide projection. Damping members connected to the guide part are arranged in a separate support frame which is guidable into its place in a dock arranged underneath the trolley and which is lowerable off the dock onto the loading member. The guide part is a floating guide tube structure. The damping members include a plurality of side damping modules connected between a side wall of the guide tube structure and the support frame for substantially damping horizontal movement of the guide tube structure. A support joint is arranged in an upper part of the support frame. | 12-19-2013 |
20140238948 | DAMPING DEVICE FOR A VESSEL - The present invention relates to a vessel comprising:-a hull,-a support structure connected to said hull, the support structure configured for supporting the mass, the support structure being constructed to allow the mass to make a back and forth movement relative to said hull along a trajectory between opposite ends of said trajectory,-a damping device configured to dampen the movement of the mass relative to said hull. The present invention also relates to a method for damping the movements of a vessel or of a mass. | 08-28-2014 |
20140299564 | MONITORING APPARATUS AND CONTROL METHOD OF CRANE HOISTING VERTICAL DEVIATION ANGLE - Disclosed in the present invention is a monitoring apparatus and control method of crane hoisting vertical deviation angle; the monitoring apparatus uses a dual-axis inclinometer to measure the vertical deviation angle of the lifting pulley block of a crane, wirelessly transmits the angle signal and dynamically displays the angle by a control display; the control method adopts the monitoring apparatus mentioned above. The monitoring apparatus thereof fixes a measuring platform on the outside of the guard plate of the movable pulley of the lifting pulley block, and the dual-axis inclinometer is fixed on the measuring platform surface which becomes a horizontal plane when the crane hoisting vertical deviation angle is 0 degree. The present invention can achieve detecting and monitoring the verticality of the lifting pulley block in real time, and avoid the risk of the crane non-vertical hoisting. | 10-09-2014 |
20150337798 | Device and Method for Placing Components of a Structure - A device for placing components of a structure, in particular a wind turbine includes hoisting means placed on a surface, a boom of which is provided with a hoisting cable with attaching means for a component for placing, wherein a lifting plane is defined by the boom and the free-hanging hoisting cable. The boom includes a guide device for the attaching means. The guide device is connected to the boom by means of a displacing device displaceable along a longitudinal axis of the boom. The guide device is configured to limit movement of the attaching means in a direction running transversely of the lifting plane, and further includes a catching construction configured to receive and displace the attaching means parallel to the lifting plane between a position in the vicinity of the boom and a position further removed from the boom and/or vice versa. | 11-26-2015 |
20150344271 | METHOD FOR CONTROLLING THE ORIENTATION OF A CRANE LOAD AND A BOOM CRANE - The present disclosure relates to a method for controlling the orientation of a crane load, wherein a manipulator for manipulating the load is connected by a rotator unit to a hook suspended on ropes and the skew angle ηL of the load is controlled by a control unit of the crane, characterized in that the control unit is an adaptive control unit wherein an estimated system state of the crane system is determined by use of a nonlinear model describing the skew dynamics during operation. | 12-03-2015 |
20150368075 | Device and Method for Placing a Rotor Blade of a Wind Turbine - A device for placing a rotor blade of a wind turbine. The device includes a hoisting means on a surface of which a boom rotatable around a substantially vertical rotation axis is provided with at least one hoisting cable. The at least one hoisting cable includes an attaching means, to which a rotor blade for placing can be attached via an elongate hoisting yoke, the hoisting yoke extending in a longitudinal direction of the rotor blade. The boom includes a guide device to limit movement of the hoisting yoke in a direction running transversely of the lifting plane. The device or hoisting yoke further includes a displacer for displacing the hoisting yoke or parts of the hoisting yoke in the longitudinal direction of the rotor blade. A method which makes use of the invented device. | 12-24-2015 |
20160002010 | STABILIZATION AND CONTROL OF A CRANE LOAD - A stabilizer cable has a first end and a second end, wherein the first end is coupled to a crane load. The stabilizer cable loops around a boom pulley that is attached to a crane boom, then runs through a traveler pulley, then loops around a floating pulley, then loops around a deflector pulley. The deflector pulley and the second end of the stabilizer cable are positioned such that an increase in tension of the stabilizer cable urges the suspended load toward the traveler pulley. Other embodiments are also described. | 01-07-2016 |
20160031682 | CRANE MOTION CONTROL - Methods of detection and prevention for snags or off center lifts, and auto-centering a crane over a load. Snag detection includes monitoring angular deflection of the load with respect to an at-rest position, and halting movement of the crane in a direction of increasing angular deflection. Controlling off center lifting includes detecting a side load condition for a load, and preventing a hoist operation when the side load condition is detected. Auto-centering a load includes determining a position of a block coupled to the load with respect to a trolley of the crane, and centering the trolley over the block prior to a moving operation. Centering includes comparing a position of a block marker using a trolley camera to a known centered position of the marker with respect to the camera, and moving the trolley to match the determined position of the marker to its known centered position. | 02-04-2016 |
20160200553 | Method for Controlling the Orientation of a Load Suspended from a Bearing Wire About Said Bearing Wire and a Winch Arrangement | 07-14-2016 |
20180022583 | LOAD GUIDING ARRANGEMENT | 01-25-2018 |
20180022584 | CRANE MOTION CONTROL | 01-25-2018 |
212274000 | By triangulation of load cables | 3 |
20080203046 | Overhead lift storage device - Certain exemplary embodiments provide for an overhead lift storage device comprising a longitudinal track for overhead mount and a pulley system for guiding at least one cable-like element therethrough. Each cable-like element has a connection end configured for connection with an article to be stored in a suspended storage position. An activation system is used to operate the pulley system causing the cable-like element to raise or lower a connected article between a lowered connecting position and a suspended storage position. A weight limiting clutch is used to limit the maximum force which can be used to lift a load thereby decreasing the risk of failure of the pulley system or cable-like element. A safety catch may be incorporated into the overhead lift storage device for taking the load off of the pulley system and/or cable-like element when the article is in the suspended storage position. The safety catch interacts directly with the cable-like element or a component thereof to take the load of the suspended article and does not support the article from below. | 08-28-2008 |
20100018938 | UPPER BLOCK - A crane having an upper block, a lower block, a drum, and two ropes. The upper block includes an equalizer having a yoke to which the ropes are connected. The connections between the ropes and the yoke include load cells that measure the forces carried by each of the ropes. The upper block includes a fail-safe system that prevents failure of the upper block in overload conditions. | 01-28-2010 |
20110094987 | APPARATUS AND METHOD FOR ASSEMBLING WIND TURBINES - An apparatus for assembling a wind turbine includes a crane boom having a main bearing cable coupled to a component for lifting the component during assembly of the wind turbine, and a control mechanism coupled to the crane boom for controlling the orientation of the wind turbine component during the lift. The control mechanism includes a guide member coupled to the crane boom, a movable member coupled to the guide member and configured to be movable relative to the crane boom, a coupling member configured to couple the movable member to the wind turbine component being lifted by the crane boom, and a drive mechanism configured to actively move the movable member relative to the crane boom independent of the movement of the main bearing cable. A method for assembling a wind turbine includes using the coupling member to change the orientation of the component. | 04-28-2011 |
212275000 | By cyclic control of trolley acceleration or deceleration | 8 |
20090020492 | Hoist Controls With Compensation For Dynamic Effects - A servo motor driven hoist includes a float mode in which a load is raised lowered in response to manually applied forces on the load exerted by an operator in which forces applied to the load as a result of accelerations of the load generated by hoist movement of said load are compensated for by sensing the accelerations and computing the forces resulting therefrom, and subtracting those forces from the sensed total magnitude of forces acting on the load to eliminate the effects of dynamically generated forces when in the float mode. | 01-22-2009 |
20090050593 | Operating Method for an Installation having a Mechanically Movable Element - An assembly has a mechanically movable element ( | 02-26-2009 |
20090194498 | Methods and Systems for Double-Pendulum Crane Control - Disclosed are various embodiments of methods and systems related to double-pendulum crane control. In one embodiment for determining a specified insensitivity (SI) input shaper for a double-pendulum crane, the method using a processor system to implement the steps including determining a plurality of insensitivity ranges based upon operational parameters associated with the double-pendulum crane; and determining SI input shaper parameters based upon tolerances corresponding to the plurality of insensitivity ranges, the SI input shaper parameters including an amplitude and a time corresponding to each impulse of the SI input shaper. | 08-06-2009 |
20090211998 | INTELLIGENT CONTROLLED PASSIVE BRAKING OF A RAIL MOUNTED CABLE SUPPORTED OBJECT - A lift system for lifting and moving heavy parts in an assembly environment. The system includes an overhead cart that travels along a rail. A cable connected to the cart is coupled to the part to lift and move the part. The cart includes a braking device and a controller that controls braking of the cart on the rail. When the cart is moving along the rail, and the worker wishes to stop the part at the assembly location, the worker can initiate the braking operation of the cart by pressing a button. The braking device and the controller control the braking of the cart by applying and releasing the brake in a manner determined by the mass of the cart and the mass of the part so that as the cart is being stopped, the part is prevented from swinging. | 08-27-2009 |
20090218305 | DEVICE FOR PREVENTING SWAY OF SUSPENDED LOAD - This invention provides a device for preventing sway of a suspended load, which does not require complex calculation for eliminating frictional resistance components. The device is equipped with a speed control device ( | 09-03-2009 |
20120234787 | METHOD OF SWING STOPPING CONTROL AND SYSTEM OF SWING STOPPING CONTROL OF SUSPENDED LOAD OF CRANE - A method of swing stopping control of a suspended load of a crane including a hoist and a trolley solves an equation of motion, given as an equation with respect to the deviation angle of a suspended load from the vertical direction when the trolley travels, for the trolley acceleration to thereby obtain the value of the acceleration or deceleration of the trolley, obtains speed patterns corresponding to the values of the acceleration or deceleration, drives the trolley according to the obtained speed patterns, and carries out control so that the deviation angle of the suspended load from the vertical direction becomes zero at the time when the acceleration or deceleration of the trolley is ended. Thus, even if the length of a rope holding the suspended load up is changed, a required speed pattern is produced to permit highly accurate positioning. | 09-20-2012 |
20140202970 | FAST CRANE AND OPERATION METHOD FOR SAME - A fast crane and an operation method for the same are provided. The operation method includes calculating a pendulum period and moving the object. The pendulum period of the cable is calculated. The object is moved with an acceleration during an active time based on the pendulum period. | 07-24-2014 |
20160016763 | Control device using image tracking technology for controlling overhead crane system - A control device using image tracking technology for controlling overhead crane system is disclosed, in which a plurality of image capturers are used to monitor a operating space and a position of the hoisted load, a respective image of two of which are used to establish a 3D coordinate data, so that an image processor calculates parameters including a hoisted load position (P), a swing angle (θ) and a cable length (I) by referring to the images received, and generates a feedback signal to a crane controller. The crane controller issues a drive signal according to the feedback signal to drive the overhead crane system. | 01-21-2016 |