| Sandvik Mining and Construction Oy Patent applications |
| Patent application number | Title | Published |
|---|
| 20120018657 | SEALING ARRANGEMENT IN ROTATING CONTROL VALVE OF PRESSURE FLUID-OPERATED PERCUSSION DEVICE - The invention relates to a sealing arrangement in a rotating control valve of a pressure fluid-operated percussion device, to which percussion device a tool is mountable movable in its longitudinal direction, the percussion device containing a work chamber and a transmission piston mounted movable to compress the tool suddenly to generate a stress pulse to the tool, inlet and outlet channels for conducting pressure fluid to the percussion device and away from it, and a control valve having a rotating switch member with channels to connect inlet and outlet channels through the channels of the switch member to alternately conduct the pressure fluid through the channels to the work chamber and, correspondingly, away from the work chamber, and in the inlet channel of the pressure fluid at the switch member side end thereof at least one sealing sleeve for the purpose of sealing the inlet channel to the switch member. In the arrangement, the sealing sleeve is mounted obliquely to the surface of the switch member and the switch member side surface of the sealing sleeve is essentially in the shape of the switch member surface. | 01-26-2012 |
| 20120018182 | PERCUSSION DEVICE - The invention relates to a percussion device having a frame, a tool mounted movable in its longitudinal direction, the percussion device containing a work chamber having a movably mounted transmission piston to compress the tool so that a longitudinal stress pulse is generated to the tool, inlet and outlet channels for conducting the pressure fluid to the percussion device and away from it and a control valve that alternately directs the pressure fluid from the inlet channel to the work chamber to act on the transmission piston and, correspondingly, discharges the pressure fluid from the percussion device. The percussion device and trans-mission piston have channels that connect the pressure fluid that acted on the transmission piston to flow during the return movement of the transmission piston through the control valve and transmission piston to the pressure fluid outlet channel and cut off the flow when the transmission piston has returned to its initial position. | 01-26-2012 |
| 20110224859 | METHOD FOR USING MINING VEHICLE, ARRANGEMENT IN MINE, ROCK DRILLING RIG, AND MINING VEHICLE - A method for using a mining vehicle, arrangement in a mine, rock drilling rig, and mining vehicle. Tasks according to a work cycle are performed at work sites with a mining work device in a mining vehicle. At the work site, the vehicle is connected to an external electrical network. An energy storage of the vehicle is charged during the work cycle defined by a excavation plan, when the vehicle is at a work site. After the work cycle is done, electricity obtained from the energy storage is used in a transfer drive. | 09-15-2011 |
| 20110220421 | ROCK DRILLING MACHINE AND AXIAL BEARING MODULE - A rock drilling machine and an axial bearing module. The rock drilling machine is equipped with an axial bearing having at least one axial piston for axially positioning a drill shank and for damping stress pulses returning from the rock. The axial bearing includes a module that is detachable in one piece from one installation direction. The axial bearing module includes the required pressure medium channels, seals, bearing surfaces, and a module frame having at least bearing housing in connection therewith. | 09-15-2011 |
| 20110017513 | DRILLING UNIT, METHOD FOR SLOT DRILLING AND SLOTTING DEVICE - A slotting device ( | 01-27-2011 |
| 20110011647 | Method And Separation Conduit For Handling Lubricant Mist, And Rock Drilling Rig - A method for handling lubricant mist used in mist lubrication, a separation conduit and a rock drilling rig having a mist lubrication system provided with a separation conduit. The return flow of the lubrication mist is conveyed in the separation conduit from the lubrication target to a collection container. The separation conduit is an elongated conduit having an elongated separation member arranged therein, the separation member comprising a plural number of successive and inclined barrier surfaces. Lubricant droplets contained in the lubricant mist hit the barrier surfaces and accumulate thereon. The separated lubricant is collected into the collection container at the outermost end of the separation conduit. | 01-20-2011 |
| 20100320000 | ARRANGEMENT FOR PROCESSING DUST - The invention relates to a method for processing dust when breaking rock, to a dust separator, and further to a rock-drilling rig. Rock material and air sucked from a borehole or some other operating location is separated from each other in the dust separator. The separated rock material falls into a discharge part of the dust separator, from which it can be dosed in batches into a discharging device. The discharging device comprises a closed compression space in which the rock material batch is compressed into a more compact state. This forms a solid matter cake that is removed from the dust separator. | 12-23-2010 |
| 20100307827 | METHOD AND DEVICES FOR HANDLING ROD-LIKE PIECES IN DRILLING AND BOLTING - A method and a rod magazine for handling elongated rods in a rock drilling unit, and a bolting unit. Elongated rods, such as drill rods and rock bolts, are stored into a linear rod magazine—provided with feed members for transferring the rods upward and downward in the magazine. The feed members comprise screw surfaces by which the rods are supported in the magazine. The required feeding movement is produced by rotating the feed members about their rotation axis. In addition, the rod magazine comprises transfer means that allow the rods to be transferred from the magazine to a drilling line or bolting line, i.e. to a centre, and vice versa. The transfer means are provided with gripping means for gripping the rods. | 12-09-2010 |
| 20100286965 | METHOD AND SOFTWARE PRODUCT FOR DESIGNING DRILLING PATTERN FOR ROCK CAVITY EXCAVATION - A method for designing a drilling pattern for rock cavity excavation and a software product implementing the method. The drilling pattern is created by means of a design program. The drilling pattern defines several starting points of drill holes in a navigation plane, end points of the drill holes on the bottom of a round and further the directions and lengths of the drill holes. The face of the round is designed to have a desired shape by determining the locations of the end points for the desired face profile. A three-dimensional face profile is entered into the design program, which subsequently places end points to the face profile automatically. | 11-11-2010 |
| 20100280668 | METHOD, APPARATUS AND COMPUTER PROGRAM FOR ADJUSTING HYDRAULICALLY OPERATED BOOM - The invention relates to a method and apparatus as well as to a computer program for adjusting the operation of a hydraulically operated boom, the boom ( | 11-04-2010 |
| 20100275801 | METHOD AND APPARATUS FOR SMALL-CHARGE BLASTING - A method of small-charge blasting, a rock drilling unit and a front guide to be used therein. By means of a rock drill machine provided in the rock drilling unit, a hole is first drilled into a material to be excavated and, subsequently, a drilling tool is pulled out of the hole. Next, one or more propellants comprising a propellant charge are fed to the bottom of the hole through a propellant feed channel provided in connection with a feed beam. Then, the hole is sealed and the propellant is ignited, whereupon a high gas pressure is generated, which causes fractioning in the material to be excavated. During the feeding and ignition of the propellant, the rock drill machine is kept in a parallel direction with respect to the hole. | 11-04-2010 |
| 20100270076 | METHOD AND EQUIPMENT FOR SMALL-CHARGE BLASTING - A method for small-charge blasting, and a rock drilling unit used therein. By means of a rock drilling machine of the rock drilling unit, a drill hole is first drilled into material to be excavated, after which one or more cartridges comprising a propellant charge are fed through a drilling tool onto the bottom of the drill hole. The drilling unit comprises a cartridge feed station, which is separate from the rock drilling machine and from which the cartridges may be fed into a longitudinal channel in the drilling tool. | 10-28-2010 |
| 20100200294 | ROCK DRILL APPARATUS - The invention relates to a rock drill apparatus comprising a feed beam ( | 08-12-2010 |
| 20100183422 | ARRANGEMENT FOR MONITORING THE LOCATION OF A MINING VEHICLE IN A MINE - A method and a system for monitoring the location of a mining vehicle in a mine. The mine includes a first and a second work area. At least one identifier whose exact location is known is arranged in the first work area. The location of the mining vehicle is determined continuously by use of a dead reckoning. The location data, based on the dead reckoning, can be updated by use of the identifier. The location data are transmitted to a mine control system for monitoring the mining vehicle. | 07-22-2010 |
| 20100147084 | MEASURING DEVICE, ROCK BREAKING DEVICE AND METHOD OF MEASURING STRESS WAVE - The invention relates to a method of measuring a stress wave and to a measuring device and a rock breaking device. A percussion device ( | 06-17-2010 |
| 20100141012 | METHOD OF QUARRYING DIMENSIONAL STONE, AND LINE DRILLING APPARATUS - The invention relates to a method of quarrying dimensional stone and to a line drilling apparatus used therein. The drilling apparatus ( | 06-10-2010 |
| 20100139941 | ARRANGEMENT FOR EMPLOYING DRILL STEEL CENTRALIZER TRAVELLING ON FEED BEAM OF ROCK DRILL MACHINE - The invention relates to an arrangement for employing a drill steel centralizer ( | 06-10-2010 |
| 20100126769 | METHOD OF MODIFYING DRILLING PATTERN, ROCK DRILLING RIG, AND SOFTWARE PRODUCT - A method and a storage device including a software product for modifying a drilling pattern, and a rock drilling rig. One or more holes whose location is to be changed may be selected from a drilling pattern prior to drilling. The hole is assigned a new location by means of a drilling unit and, subsequently, the drilling pattern is updated. | 05-27-2010 |
| 20100086359 | METHOD OF DIRECTING DRILLING PATTERN IN CURVED TUNNELS, ROCK DRILLING RIG, AND SOFTWARE PRODUCT - A method of determining a direction of a drilling pattern in tunnel curve calculation to be executed in a control unit of a rock drilling rig. The invention further relates to a storage device including software product implementing the method, and a rock drilling rig. A tunnel line of a tunnel to be excavated is determined e.g. by using curve fitting. A location of a drilling site on the tunnel line is communicated to the control unit and a navigation plane of the drilling pattern is positioned on the tunnel line. A start point of a round is positioned on the tunnel line and a length of the round is provided. Further, an end point of the round is positioned at a distance corresponding with the length of the round from the start point and a coordinate system of the drilling pattern is directed such that one of its axes points from the start point to the end point. Finally, different coordinate systems are transformed. | 04-08-2010 |
| 20100084218 | SOUND DAMPENING HOUSING FOR ROCK DRILL - The invention relates to a sound dampening housing for a rock drill which moves along a feed beam in a longitudinal direction thereof, the sound dampening housing being attachable to the feed beam of the rock drill on its both sides so that together with the feed beam the sound dampening housing constitutes a substantially closed space. The sound dampening housing is double-shelled, and an airspace is provided between its inner shell and its outer shell. | 04-08-2010 |
| 20100077885 | Arrangemmmment In Control Device of Work Machine - A method for removing impurities from a control device of a work machine and a control device. The control device ( | 04-01-2010 |
| 20100074044 | CEMENT SILO STRUCTURE FOR MINING MACHINE - The invention relates to a cement silo structure for a mining machine comprising a mixer, a cement silo for cement and a feed apparatus for feeding cement to the mixer. The cement silo is a separate unit that may be transferred by means of transfer means between a use position on top of the mining machine and a filling position that differs from the use position. | 03-25-2010 |
| 20100059242 | PERCUSSION DEVICE - The invention relates to a percussion device having a body and a percussion piston moving therein, pressure fluid spaces in the rear and front ends of the percussion piston and pressure fluid channels for feeding pressure fluid into the percussion device. The percussion piston and the control valve comprise surfaces, which, when aligned, substantially close the pressure fluid flow from the pressure fluid space locating behind the percussion piston in front of the control valve, whereby the produced pressure displaces the control valve to another position. | 03-11-2010 |
| 20100025108 | METHOD FOR DRILLING ROCK - The invention relates to a method for drilling rock, wherein holes to be drilled are determined prior to drilling as a drilling pattern wherein for each hole, a starting place, direction and hole depth for drilling are determined with respect to the rock to be drilled. In the invention, hole-type-specific drilling parameters are determined for the holes to be drilled, and during a drilling phase a drill rig automatically selects drilling parameters for each hole to be drilled on the basis of the hole type of the particular hole. | 02-04-2010 |
| 20090321133 | ROCK DRILLING APPARATUS AND METHDO FOR CONTROLLING ROCK DRILLING APPARATUS - A rock drilling apparatus with several actuator units, a user interface control unit, and at least one control means connected to the user interface control unit for controlling the functions of the rock drilling apparatus, and for each actuator unit, a control element connected under the control of the user interface control unit for controlling the operation of the actuator unit in accordance with control signals provided by the user interface control unit, and a method for controlling the rock drilling apparatus. When the control element of an actuator unit of the rock drilling apparatus turns faulty, the control element of another actuator unit is connected to control the first actuator unit when the other actuator unit need not be controlled. | 12-31-2009 |
| 20090188686 | Method for controlling percussion device, software production, and percussion device - A method and software product for controlling a percussion device belonging to a rock-drilling machine, and a percussion device. The impact frequency of the percussion device is set so that the percussion device forms a new compression stress wave to the tool always when reflected waves from the previous compression stress waves reach a first end of the tool. This requires that the impact frequency be set proportional to the propagation time of the stress wave, whereby the length of the used tool and the propagation velocity of the stress wave in the tool material are to be noted. | 07-30-2009 |
| 20090183975 | PUSH-BUTTON ARRANGEMENT AND PUSH-BUTTON - A push-button arrangement and a push-button. The push-button comprises a fastening sleeve portion having a press portion at a first end thereof and a fastening member at a second end thereof for connecting the push-button to a fastening hole in a fastening plate. The outer surface of the fastening sleeve portion is provided with at least one conical sealing surface and the fastening hole, correspondingly, with a conical counter surface. | 07-23-2009 |
| 20090090525 | Rock breaking device, protection valve and a method of operating a rock breaking device - A hydraulic rock breaking device, a protection valve and a method of operating a hydraulic rock breaking device. The rock breaking device comprises a percussion device to which pressure fluid is fed along an inlet channel. The inlet channel is provided with a protection valve arranged to monitor the volume flow of pressure fluid flowing through it. If the flow is larger than what has been preset, the protection valve closes, at least partly, the connection through it, protecting thus the percussion device against too high an input power. The protection valve comprises a throttle which generates a pressure difference the magnitude of which is dependent on the fed volume flow. Information on the pressure difference is utilized in controlling the protection valve. | 04-09-2009 |
| 20090071715 | METHOD OF CONTROLLING OPERATION OF ROCK DRILLING RIG, AND ROCK DRILLING RIG - A method of controlling operation of a rock drilling rig, and a rock drilling rig. A rate of flow of a flushing medium of the rock drilling rig is determined, and the operation of the rock drilling rig is controlled on the basis of the determined rate of flow by influencing pressure of the flushing medium. | 03-19-2009 |
