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JP5843242B2 |
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JP5813099B2 |
The present invention relates to a drill comprising a shank adapter (3), a damping piston (5) with a forward end surface (18), a stop end surface (14) for the damping piston (5), a rotation chuck bushing (4) with a forward end surface (1...
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JP2015529566A |
A device (1) having a reciprocating element (3) with a composite buffer slide (13) on the outer surface (8, 9). The reciprocating element (3) is movable along the reciprocating path, and the composite buffer slide (13) includes an outer ...
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JP5655013B2 |
An apparatus for inserting a ground-loop for a geothermal heat-pump system comprises: a percussion mole (4); a first fluid pipe (5), connected to the mole (4), for conveying a heat-exchange fluid from the heat-pump system into the ground...
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JP5631924B2 |
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JP5593398B2 |
A method for lubricating a drill shank of a rock drilling machine, wherein at least part of the flow of the pressure fluid of a hydraulic circuit of a device of the rock drilling machine performing at least one function is directed to th...
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JP5579868B2 |
A method and measuring device for determining the usage rate of a breaking hammer, and to a rock breaking device. The measuring device comprises a sensor for measuring a physical phenomenon caused by the operation of the percussion devic...
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JP5512607B2 |
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JP5512608B2 |
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JP2014513221A |
The invention concerns a hydraulic, valveless impact mechanism for use in equipment for the machining of at least one of rock and concrete comprising a machine housing (105; 205) with a cylinder bore, a piston (110; 210) mounted such tha...
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JP5470394B2 |
An arrangement and a method for controlling at least one drill parameter when drilling in rock with a rock drill, comprising an impulse-generating device arranged to induce shock waves in a tool acting against the rock with a percussive ...
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JP5453286B2 |
A shank bit, in particular a road milling bit, having a carrier part (10) that comprises a shank (11), the shank (11) carrying a bit tip (18) made of hard material, the carrier part comprising, in the region between the shank and the bit...
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JP5402115B2 |
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JP5396467B2 |
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JP5396937B2 |
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JP5396275B2 |
A method for producing Shockwave pulses in a tool direction (R) of a pulse machine (1) having a housing (2), wherein an impulse piston (4) is arranged, wherein the impulse piston is influenced by a first force in a direction opposite to ...
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JP3187924U |
To provide a new and improved crushing hammer and an inlet member for a crushing hammer. A crushing hammer is provided with at least one inlet member 20 around a pressure medium conduit 14 at an inlet 16. The entrance member 20 is compos...
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JP5373205B2 |
An air hammer for a boring machine is provided, including: a main body including a hollow portion; a socket coupled to a side of the main body; a first bushing member including a sealing part coupled to the main body and a piston guide p...
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JP3185932U |
To provide a crushing hammer having a flushing system which is connected to a crushing hammer and can supply a flushing fluid to an object to be destroyed to prevent the formation of dust during destruction. A crushing hammer 3 may be us...
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JP5260057B2 |
Vibrational apparatus capable of providing a vibrational output, said apparatus comprising or including an assembly having a shuttle capable of shuttling between complementary structures, at least one of which complementary structures pr...
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JP5244812B2 |
According to one aspect of the invention hydraulic pressure pulses are created in a rock drill machine utilizing a rod (7, 7a, 7b) made of a magnetostrictive material arranged in one or more actuators (5, 5a, 5b), which exposes an impuls...
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JP5196506B2 |
A vibration hammer is provided, including a main body; a striking unit having a piston housing installed to be elevated by a hydraulic pressure controlling valve unit installed in the main body, a hammer guide slidably installed on the m...
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JP3182810U |
To provide a chisel for a hydraulic breaker in which the holding force of a chisel of a breaker main body is improved and the allowable bending stress of the chisel is improved. In a chisel 1, a breaker insertion portion 2 inserted into ...
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JP5160558B2 |
A breaking apparatus (1) which includes; a housing (3); a striker pin (4) having a driven end and an impact end, locatable in said housing (3) in at least one retaining location to protrude said impact end through the housing (3); a move...
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JP5132829B1 |
To provide a hard ground excavation method capable of shortening an excavation work period when excavating a pile hole in a hard ground consisting of a rock bed or boulder stones.A hard ground a consisting of a rock bed or boulder stones...
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JP5122070B2 |
The invention relates to a rock breaking machine and to a method of lubricating a tool of a rock breaking machine. The lubricating system comprises at least one lubricant channel (23) into which lubricant is fed by a lubricating device (...
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JP5061195B2 |
A pulse drilling machine (1;1′) for the generating of shock wave pulses in a tool direction (R) has an impulse piston (4;4′) with a housing (2), and a device (8) for abruptly changing fluid pressure influencing the impulse piston to ...
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JP5009779B2 |
A pressure-fluid-operated percussion device includes a frame allowing a tool to be arranged movably in its longitudinal direction. Pressure liquid is fed to the percussion device and returned to a pressure liquid tank. A stress pulse is ...
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JP2012130975A |
To improve the efficiency of operation when fracturing an object to be fractured such as the ground or rock.A chisel 3 is rotatable about a reciprocation axis X0 relative to a device body part 1 using a rotary mechanism 4. Accordingly, e...
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JP2012077474A |
To provide a breaking device which has no limitation on the shape of a breaking object or the like and does not noise over a long period of time either.The breaking device includes: a striking body comprising a heavy object; guide means ...
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JP4913739B2 |
The invention relates to a method for breaking rock to be drilled in rock drilling, in which method the rock to be drilled is subjected to successive stress pulses via a tool. The method comprises stress pulses being exerted on the rock ...
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JP4898780B2 |
A method for controlling the operation of a pressure fluid operated percussion device and to a pressure fluid operated percussion device. The method includes influencing the shape of a stress wave by setting a suitable clearance between ...
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JP4874964B2 |
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 s...
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JP2012006096A |
To develop and provide a vibration-proof and sound-proof crusher having excellent vibration-proof and sound-proof properties, strong in metal fatigue breakage and excellent safety, working efficiency and economic efficiency.In the crushe...
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JP4851386B2 |
The device (11) has a fixing device provided at an end (12) for fixing the device at a dismantling tool equipment (6), and a connection device for a vacuum source. Deflectors (21, 26) are arranged at a distance to each other in the devic...
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JP4841653B2 |
Disclosed herein are methods, apparatus and systems for automating or metering fluid recovered at a well. According to one example, a system is described for automating the fluid recovery of oil wells using a pump jack or oil extractor. ...
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JP4791552B2 |
A damping device for inserting into a housing of an impulse producing drill machine, for damping Shockwave reflexes from a drill string connected to the drilling machine, is distinguished in that a first damping piston (7) for direct or ...
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JP4792508B2 |
The invention relates to a pulse generator (18) in an impulse generator (2) for a cutting tool (12), which pulse generator (18) is intended to transfer energy from a propulsion device (14) to impulses in the tool (12), where the pulse ge...
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JP4786768B2 |
A hydraulic breaker assembly including a head cap, a cylinder, and a front head, which are mounted in a casing, wherein corresponding faces of the front head and the cylinder are connected by connecting pins, wherein the cylinder and the...
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JP4769864B2 |
The invention relates to an impulse generator for a rock breaking tool, the impulse generator (2) comprising a main chamber (4) for receiving a first pressurizeable fluid volume (6), an in the main chamber (4) received impulse piston (8)...
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JP4769863B2 |
The present invention relates to a method for controlling a rock drilling process, in which an impulse-generating device comprising an impact element transmits a shock wave to a tool connected to the impulse-generating device, whereby a ...
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JP4769862B2 |
The present invention relates to a control device for an impulse-generating device for inducing a shock wave in a tool, in which said impulse-generating device comprises an impact element for transmitting said shock wave to said tool, a ...
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JP2011523599A |
The invention relates to an arrangement designed to be inserted in a cavity (19) in a front part (14) of a rock drilling machine with a shank adapter (16). The arrangement comprises a cartridge (1) with a flushing head (2) and a guide (3...
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JP4751324B2 |
An air spring hammer device that includes a drive piston, moving axially back and forth, with a front face of hollow embodiment and a hammer piston moving in said hollow. A ventilation slot is embodied in a guide wall of the drive piston...
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JP4708673B2 |
A rock drill includes a string of components interconnected by screw threads and connected to a shank. A percussion piston is reciprocated against the shank during a drilling operation, while a support device applies axial support to the...
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JP4684413B2 |
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JP4672577B2 |
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JP4647999B2 |
A sonic drilling apparatus having a work piston within a cylinder chamber to provide a vibratory force through the alternate application of fluid under pressure into the bore above and below the piston in a manner that the piston will be...
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JP4648488B1 |
To provide a method for forming and drilling a drilling hole for compacting from the inside of the ground, which is composed of a simple rotating device for utilizing the rotational force generated in the spiral steel pipe due to the imp...
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JP4625581B2 |
A hammer device has a machine housing (1) with a hammer piston (2) movable to-and-fro. The to-and-fro movement of the hammer piston is controlled by a valve body (6) movable to-and-fro in the machine housing. The valve body, via a channe...
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