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JP2010242377A |
To provide an operating machine suitable for inserting a pile deep into the ground.The boring operating machine 1 includes: a housing 41; a rotator rotating in the housing 41; an striking body swiveling in the housing 41 through the rota...
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JP4566188B2 |
The invention relates to a drill hole measuring device and a rock drilling unit equipped with the measuring device. The measuring device (1) comprises a protective element (3), inside which a sensor (6) can be transferred by means of a t...
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JP4551960B2 |
A method of breaking rock which includes the steps of drilling a hole in the rock using a drill rod; leaving the drill rod in the hole; using water flow to direct a propellant charge into the hole through a passage in the drill rod; and ...
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JP4530185B2 |
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JP2010527418A |
The present invention provides a method and system for the generation of, the utilization of, the processing of, and the maintenance of a heterogeneous solid-particle impactor-laden fluidic-process circuit that incorporates a particle-in...
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JP4520624B2 |
The drill/chisel assembly has a drive spindle (19) for the tool with two cogwheels (17,18) of different dimensions. A back gear shaft (1) has a drive pinion (15), and carries a tumble drive (7) for a hammer. A switch sleeve (9) on the sh...
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JP4514900B2 |
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JP4494071B2 |
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JP4490289B2 |
An axial bearing includes a first piston and a second piston. Axial contact surfaces between the pistons are arranged in the same pressure space. The same pressure fluid fed to the axial bearing acts on the contact surfaces and on workin...
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JP4479987B2 |
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JP4463381B2 |
A damper pressure control apparatus for a hydraulic rock drill is automatically adjustable of damper pressure to be applied to a damping piston depending upon a thrust of a rock drill body and makes damping function and floating function...
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JP4459225B2 |
A hydraulic drill string device can be in the form of a percussive hydraulic in-hole drilling machine that has a piston hammer ( 50 ) with an axial through hole ( 51 ) into which a tube ( 35 ) extends. The tube forms a channel for flushi...
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JP2010024702A |
To provide a crushing apparatus for underwater rock mass and a crushing method for underwater rock mass, allowing machinery and materials used to be carried into an inland part, surely specifying a rock crushing position, and easily pull...
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JP4404455B2 |
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JP2010014359A |
To provide a method and structure for burying a ground heat exchanger tube that can sufficiently use ground heat, has no risk of damage to a heat exchange tube, and is easy in the replacement and maintenance of the heat exchanger tube.A ...
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JP4317017B2 |
A method and an apparatus for monitoring the operation of a percussion device, which percussion device comprises a percussion piston and a pressure channel for supplying pressure medium to the percussion device for moving the percussion ...
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JP4296450B1 |
To provide an excavation earth retaining body capable of excavation and chisel rock with a necessary pressing pressure without the need for pressing from the ground such as a hydraulic excavator and a telescopic excavator placed on the g...
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JP4282022B2 |
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JP2009019463A |
To drill a continuous hole without bending in a drill with a guide rod having a drilling rod 4 hammered by a hammering part formed at a drifter and the guide rod 7 parallel to the drilling rod and drilling the continuous hole H2 arranged...
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JP3147502U |
[wrap up] [Subject] To provide an air hammer that can improve performance and maintain performance for a long period of time. An air hammer 7 includes a tubular casing 11 extending in the vertical direction, a gas flow path tube 14 exten...
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JP2008308970A |
To provide a silencer capable of reducing the exhaust sound of operating gas from a rock drill to reduce the noise of the rock drill and maintaining easiness in handling the rock drill.The silencer 3 for reducing the exhaust sound of exh...
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JP4202248B2 |
An impact device for a rock drill. The rock drill includes a tool and a mechanism for delivering a stress pulse to the tool. That mechanism includes an impact element supported to a frame of the drill, and a mechanism for subjecting the ...
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JP2008303639A |
To provide an environmentally friendly well excavator without using fossil fuel.Wind force energy is used as energy for hoisting an excavating member mounted to the tip of a wire of a hoisting machine in a method of hoisting the excavati...
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JP3146972U |
To provide a protective casing which can be easily fixed and positioned by arranging a breaking hammer and a long bar at a side plate joint. In a protective casing that protects an impact device that gives an impact pulse to a destructiv...
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JP2008542594A |
A method and device for drilling, particularly percussion drilling or rotary percussion drilling a hole in soil or rock material and fixing an anchoring in the hole. To this end, a drilled hole is made by a drill bit mounted on a drill r...
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JP2008533338A |
The drill comprises a feeder beam with a drill crown protruding from its front end, a drilling device which can travel along the beam and a press cylinder at least partially housed inside the beam. The cylinder has one end which can move...
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JP4117294B2 |
Impact adapter for transfer of impacts and rotation from an impact rock drilling machine to a drill string comprising a first end ( 5 ) for connection to a drill string and a second end provided with ridges ( 7 ) and interposed grooves (...
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JP4113671B2 |
The invention concerns an arrangement for controlling a hydraulic rock drilling device. The arrangement includes a pressure ratio valve that is used for adjusting the relation between the pressures in the pressure channel leading to the ...
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JP4107402B2 |
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JP4107401B2 |
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JP2008517779A |
The invention relates to a drill bushing for engagement with a drilling steel, wherein said drill bushing ( 2 ) has contact surfaces ( 4 ) for contact with a drilling steel ( 1 ), said contact surfaces ( 4 ) having interior, inwards curv...
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JP2008115529A |
To provide a lubricating oil collection device attached to an existing rock drill to collect the lubricating oil discharged into the atmosphere to prevent the atmospheric air and soil in the vicinity of hole drilling work site from being...
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JP2008517192A |
Percussion device including a machine housing (1), a forwards and backwards movable percussion piston (2) in the machine housing, and a reciprocatingly movable tubular valve body (6) inside the machine housing, said percussion piston (2)...
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JP4053465B2 |
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JP4050468B2 |
During the drilling of rock by a rock drill bit, percussive impacts are applied to the drill bit by a reciprocating piston which impacts a shank that transmits the impacts to the drill bit. Secondary pistons are provided to push the shan...
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JP3136057U |
To drive a portable drill which is economical and highly safe and has high mobility in soil contamination survey boring and can easily pull up a sampling pipe without a separate device such as a jack. I will provide a. A drill head 4 mad...
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JP3943274B2 |
To enable the excavation of a small diameter as much as possible at the time of curvilinear excavation and to enable excavation associated with percussion. Through the use of a bent external pipe 11 bent at a predetermined curvature and ...
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JP3908362B2 |
To improve a controller of a fluid type striking mechanism to constitute the controller so as to function without steadily loading working pressure necessary for operating the striking mechanism and specially without applying mechanical ...
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JP3904612B2 |
An arrangement in a rock drill comprising a shank and a percussion piston and lifting sleeve for moving the shank towards percussion piston, and a method of controlling rock drilling. The arrangement comprises a lifting sleeve around the...
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JP2007507627A |
In a method and device for drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock material, wherein a borehole is formed by a percussive and/or rotational movement carried out by a drill bit ( 1 ...
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JP2007507626A |
In a method and device for boring or drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock, wherein a borehole is formed by a percussive and/or rotary movement carried out by a drill bit ( 2 ) m...
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JP2006521481T5 |
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JP3888492B2 |
To improve performance by arranging a shock transmitting tool on the tip of an extra magnetostrictive material arranged in the center of an exciting coil on which pulse voltage is impressed, and arranging a reaction receiving plate on th...
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JP3877571B2 |
To provide a boring bar which prevents a hammer part from being easily damaged, while allowing a bar body to be inserted into/extracted from the hammer part. In this boring bar, a hammer receiving part 3, whose diameter is larger than an...
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JP3874889B2 |
To lessen damage by smoothly buffering reflection energy from a shank rod and advance a rock drill body so as to bringing a bit into contact with a rock even in the case where the rock drill body cannot advance up to a prescribed positio...
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JP3875095B2 |
To provide a dynamic behavior detecting apparatus capable of directly measuring and evaluating the dynamic behavior of a boring device in order to accurately calculate boring reaction. The boring device 10 with a boring bit 19 for boring...
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JP3868204B2 |
To provide an anchor constructing apparatus for use in construction of an anchor, which can prevent collapse, etc., of a holed wall drilled according to a general drilling method, can efficiently discharge excavated muck even in hard gro...
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JP3835576B2 |
To automatically control a piston stroke in response to change of rock quality by pilot-controlling the opening of a flow metering valve provided between a short stroke port and a valve control circuit by hydraulic pressure of the actuat...
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JP3825802B2 |
PCT No. PCT/SE96/00895 Sec. 371 Date Jan. 2, 1998 Sec. 102(e) Date Jan. 2, 1998 PCT Filed Jul. 3, 1996 PCT Pub. No. WO97/02313 PCT Pub. Date Jan. 23, 1997A pneumatic portable impact tool includes a tubular housing, at least one handle pi...
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JP3824112B2 |
To reduce damage by smoothly buffering energy reflected from a shunk rod. A rock drill has a hammering mechanism and a chuck driver bush 13 for transmitting thrust to a shunk rod 2. In such a rock drill, a front damping piston 4 having t...
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