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JP2531078Y2 |
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JP2583006B2 |
PURPOSE: To perform high-efficient excavation of an excavated groove with a thin section. CONSTITUTION: An excavation bit part 34 comprises left, right, and central excavation bits 36, 38, and 40, and left and right plate-form excavation...
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JPH09500948A |
A driving mechanism transforms continuous longitudinal reciprocation of a piston in a chamber into unidirectional rotation. The mechanism utilizes a closed wave-shaped groove defined in either the cylinder or the chamber and adapted to r...
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JPH08511842A |
PCT No. PCT/GB94/00851 Sec. 371 Date Oct. 19, 1995 Sec. 102(e) Date Oct. 19, 1995 PCT Filed Apr. 21, 1994 PCT Pub. No. WO94/24403 PCT Pub. Date Oct. 27, 1994A rock drill which includes a main body with a chamber which is formed in the ma...
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JPH08270348A |
PURPOSE: To settle dust generated during the use of a hammer drill by surrounding the rod of the hammer drill with a sheath pipe, placing the sheath pipe on the ground, connecting a dust-sucking suction pipe to the sheath pipe, separatin...
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JP2527674B2 |
PURPOSE: To prevent large noises and increase drilling efficiency, by giving a torque and an oscillating force in the axial direction to the main shaft connected with a boring rod at the front end. CONSTITUTION: A torque is given to a ma...
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JP2508056Y2 |
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JPH08506644A |
A clutch assembly transmits rotary motion in a percussive apparatus to a drill steel. The clutch assembly includes a first hub having a first cylindrical surface formed thereon. A second hub which is substantially rotationally coupled to...
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JPH08501502A |
A fluid-activated, percussive impact tool has a piston therein that reciprocates longitudinally but not rotationally. The piston activates a wrap spring clutch to rotate the drill steel. A removable splined nut in combination with the to...
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JPH07269260A |
PURPOSE: To easily crush obstacles on drilling holes into the ground with effect of agitation for fixative liquid expected while preventing attachment of clay. CONSTITUTION: A hole is drilled to the ground with an excavating device 1 by ...
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JPH0785869B2 |
The invention relates to an arrangement for the axial bearing of the drilling machine. The drilling machine thereby comprises a body (6), a percussion device (1) fitted in the body, and a rotation bushing (3) functioning as a rotating me...
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JPH0738306Y2 |
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JPH0768836B2 |
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JPH0768696B2 |
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JPH07158371A |
PURPOSE: To provide an auger which is suitable for continuous work and can save energy, because it is not required to extract the whole body of its inner casing pipe. CONSTITUTION: An auger is provided with an outer casing pipe 10 and an...
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JPH07158368A |
PURPOSE: To smoothly circulates high pressure water for the emission of slime and pressurized air to drive a downhole hammer. CONSTITUTION: When a high pressure air flows in a fluid inlet 20, a first check valve 28 operates so that the f...
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JPH0726421Y2 |
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JPH0724475Y2 |
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JPH0733750B2 |
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JPH0734772A |
PURPOSE: To promote reliability and long life of an equipment by forming a chemical vapor deposition layer excellent in smoothness with high hardness in furious part of abrasion such as a spiral groove, etc., of a rifle piston. CONSTITUT...
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JPH0718967A |
PURPOSE: To smoothly discharge slime while preventing the eccentricity of drilling by pressing water from drain holes intermittently bored at the front end of a ring bit and conducting drilling while turning and striking the ring bit. CO...
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JPH0696844B2 |
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JPH0686791B2 |
An arrangement for mounting of a rotation element in a drilling machine comprising a body (1) and a rotation element (8) mounted by means of bearing surfaces (8a, 8b) rotatably in the body for rotation of a drill shank (9). The rotation ...
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JPH0686790B2 |
An arrangement for mounting and supporting of a shank of a drilling machine comprising a body supported by a carriage, a percussion piston mounted in the body, and supporting housing positioned at a front side of the body, and a shank pi...
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JPH0686789B2 |
An arrangement for supporting of an axial bearing of a drilling machine which comprises a body (1) supported by a carriage (15) and a rotation bushing (5) mounting rotatably in the body for rotation of a shank (10). An axial bearing (8) ...
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JPH0680276B2 |
A body construction for a drilling machine comprising a body provided with end covers, a percussion means mounted in the body, and a rotation means positioned on an axial extension of the percussion means for rotating a shank. In order t...
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JPH06257362A |
PURPOSE: To exhibit function of two set by means of one set without replacing a drilling device by providing different sorts type drill heads in parallel with each other on a slide table slidable in right and left directions, and sliding...
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JPH06248869A |
PURPOSE: To make it possible to use a casing pipe, which is light weight and low cost, and which is easy to join and disassemble and hence improve excavation speed in terms of a construction method which reinforces the inner peripheral s...
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JPH0630947Y2 |
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JPH06108770A |
PURPOSE: To ensure maximal use under the conditions of various rocks of a rock drill while carrying out the remote control of connection release in the case of a slot drill. CONSTITUTION: The drill device operates a drill steel-tool asse...
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JPH0588345B2 |
An improved pneumatic impact imparting tool includes a follower which is slidably accommodated in a recess formed on the inner end part of a rotor in a pneumatic motor. The follower is formed with a projection for allowing a ball to come...
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JPH0583715B2 |
An improved pneumatic impact imparting tool includes a follower which is slidably accommodated in a recess formed on the inner end part of a rotor in a pneumatic motor. The follower is formed with a projection for moving a ball around a ...
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JPH05272284A |
PURPOSE: To make it possible to carry out auger boring even if the soil to be drilled is hard. CONSTITUTION: In a soft soil at the tip of an auger 3 which is intended for drilling, a rotary drilling process may be carried out to drill th...
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JPH0560029B2 |
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JPH05187177A |
PURPOSE: To prevent the rupture of a fitting shaft by forming a small-diameter section deflected within the allowable stress on the drill fitting shaft, and deforming the drill fitting shaft within the allowable stress to distribute the ...
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JPH0547087U |
[Purpose] Provided is a hydraulic pump control device for a drilling machine, which controls the discharge flow rate of the main hydraulic pump of the excavator to a required flow rate at the time of drilling work of the drilling machine...
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JPH0536595B2 |
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JPH0524314B2 |
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JPH0533589A |
PURPOSE: To make it possible to form an improved longer column in an injection stirring type fore-piling method. CONSTITUTION: In a tunnel excavation method, boring is made by means of a drill unit equipped with a double pipe mounted on ...
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JPH0477115B2 |
PURPOSE:To reduce the size of a well sinking machine by stretching a chain for moving a drill rod up and down across a guide frame and a drive unit therefor and a rotary unit for rod thereby enabling drilling and intermittent dropping th...
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JPH0465198B2 |
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JPH04231588A |
PURPOSE: To prevent unexpected direction deviation caused by the soil-biting failure of a drill head due to the sudden change of the nature of soil. CONSTITUTION: A pipeline 18 is included between a motor 15 and a boring unit 20 for givi...
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JPH04146393A |
PURPOSE: To hasten the speed of excavation for great deep excavation by a method in which a turning force and an impact force are given to an outer casing having a bit on its tip and a hollow inner rod from the ground's surface for small...
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JPH0417664Y2 |
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JPH03250190A |
PURPOSE: To improve a lift of a digging tool by forming the periphery of almost semicircular blocks of a circular arc of different radius and the block, placed in a side of protruding from the peripheral surface of a device when it is ro...
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JPH0360606B2 |
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JPH0336632Y2 |
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JPH03161688A |
PURPOSE: To establish a simple boring device by coupling a water pressure supply pipe to a control device of a thrust unit, and further to a hammer drill, and using a flush water for hammer bit as the power for driving the drill. CONSTIT...
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JPH0343590A |
PURPOSE: To easily manufacture and work a member and to reduce the cost by alternately conducting the pressurized air to both ends of a hammer piston for longitudinally reciprocating the same, after an arbor is constrained against the mo...
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JPH03500559A |
PCT No. PCT/SU89/00090 Sec. 371 Date Dec. 26, 1989 Sec. 102(e) Date Dec. 26, 1989 PCT Filed Apr. 11, 1989 PCT Pub. No. WO89/10465 PCT Pub. Date Nov. 2, 1989.A hydraulic drilling machine has a drilling tool connected to a hydraulic motor,...
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