EP0168382A1 - Dispositif pour le forage à percussion et/ou rotation - Google Patents

Dispositif pour le forage à percussion et/ou rotation Download PDF

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Publication number
EP0168382A1
EP0168382A1 EP85890148A EP85890148A EP0168382A1 EP 0168382 A1 EP0168382 A1 EP 0168382A1 EP 85890148 A EP85890148 A EP 85890148A EP 85890148 A EP85890148 A EP 85890148A EP 0168382 A1 EP0168382 A1 EP 0168382A1
Authority
EP
European Patent Office
Prior art keywords
piston
counter
pressure
pressure chamber
impact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85890148A
Other languages
German (de)
English (en)
Other versions
EP0168382B1 (fr
Inventor
Karl Heinrich
Werner Schantl
Gustav Dr. Schatzmayr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vereinigte Edelstahlwerke AG
Original Assignee
Vereinigte Edelstahlwerke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vereinigte Edelstahlwerke AG filed Critical Vereinigte Edelstahlwerke AG
Publication of EP0168382A1 publication Critical patent/EP0168382A1/fr
Application granted granted Critical
Publication of EP0168382B1 publication Critical patent/EP0168382B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/24—Damping the reaction force
    • B25D17/245—Damping the reaction force using a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/171—Percussive pulling action of tools for extraction of elements

Definitions

  • the invention relates to a device for impact and / or rotating drilling, in particular a device for opening tap holes in melting furnaces for mineral, in particular metallic, materials, preferably blast furnaces. Such for rock, burned masses u.
  • Certain drilling devices have a reciprocating impact impact mass, usually a pneumatically, hydraulically or the like. Operated, preferably double-acting piston, which on an impact energy transmission body, which with a work tool, such as a boring bar with a drill bit, or one Beater bar, optionally connected in one piece, beats.
  • a work tool such as a boring bar with a drill bit, or one Beater bar, optionally connected in one piece, beats.
  • the kinetic energy contained in the impact mass at the moment of the impact is taken over by the transmission element and passed on to the point at which the energy is used to shred the material to be drilled.
  • the free end of the work tool is kept in close contact with the material to be processed by the application of force, so that the impact energy transfer can take place with high efficiency.
  • opening tap holes e.g. from blast furnaces
  • Manufactured beater bar is replaced, the front part of which is driven through by the impact mass of the striking mechanism through the remaining stuffing mass, and the beater bar can remain in the tap hole like a plug until tapping takes place.
  • a shock absorbing device is provided on the drilling device, in which the energy-transmitting tool end is held in the device with an annular piston penetrated by it, which piston can slide in an annular chamber arranged in the drilling device, which annular chamber with a source for incompressible, pressurized medium via a a check valve having line and is connected to a receiving container via a further line having an adjustable outlet valve, these lines having flow-restricting openings, that is to say flow restrictors.
  • this device can also make it easier to pull back, it cannot be overlooked that the shock wave trains are guided through the tool, but that their damaging effects are also reduced by strong damping by means of this ring piston. If the tool hits the ring piston with its collar, some of the energy is converted into heat. After a smaller amount of pressure medium has flowed off, pressure medium is again in the annular chamber during the Period between the blows introduced. This is to be achieved according to this AT-PS that the forces acting on the device and housing are reduced so much that they can be safely absorbed by the device.
  • the invention thus relates to a device for percussive and / or rotating drilling, in particular for opening tap holes in melting furnaces for mineral, in particular metallic materials, preferably blast furnaces, or the like on a carriage.
  • Whose or the tool side facing with a stop along a pressure chamber in a pressurized pressure medium surrounding the energy transfer element surrounding the energy transfer element displaceable and on its work tool-facing side can be acted upon with pressure medium, which is characterized in that the one with the energy transmission element, preferably a plug-in stub, preferably formed integrally therewith, with a thickening, collar or the like and via one on its own arranged working surface facing
  • Such a pressure accumulator has in its medium-filled interior a membrane-like wall, which is preferably acted upon from the other side by gas under adjustable pressure, possibly also by spring force, that is to say a counter-tension. There is thus a kind of "evasion” and “returning” this wall during the oscillating pressure energy storage process. It is also important that the path by which the piston of the counter-impact mechanism can be moved has the specified length, which means that if the tool is not pulled, but instead rotating and / or impact operation takes place, the counter-impact mechanism can be uncoupled, so that there is no hitting its piston on the collar of the stub.
  • the pressure chamber of the counter-impact mechanism which has a supply for pressure medium and at least one discharge for pressure medium, which can preferably be circulated, via at least one supply and discharge, in particular line or opening the pressure accumulator is connected to the pressure medium, the cross-sectional or total cross-sectional area of which is at least as large as the cross-sectional or total cross-sectional area of the inlet opening of the counter-impact energy pressure accumulator at each point of its extension.
  • the counterblow mechanism has a stop body, in particular stop ring, which is fixed in position in the housing of the device, in particular in its distal cap, which limits the longitudinal movement of the piston in the pressure chamber in the direction away from the work tool. This makes it easy to ensure that the stub is held at a defined distance from the striking mechanism even when the tool pressure is high, which means that there is no danger to the striking mechanism and housing.
  • the pressure chamber of the counter-impact mechanism has a sleeve, in which the sleeve, in particular its cap, adjoins the inside, preferably rests against the pressure medium, preferably integrally formed with it and limiting the longitudinal movement of the piston in the direction toward the working tool the piston is slidingly movable, there are low-friction guidance of the piston of the counter-impact mechanism, special protection of the housing and easy interchangeability, e.g. given after wear. With the stop, the path of the insertion stub is also away from the striking mechanism, e.g. limited when pulling out the tool without counter impact.
  • the advantage is that connection points, openings, lines or the like.
  • For supply and discharge of pressure medium, which penetrate the housing, can each have mechanically favorable cross-sectional shape and size, while the guides, lines provided in the sleeve , Openings or the like. Can have cross-sections and ratios of the cross-sectional area that are matched to their respective task.
  • a construction is advantageous, according to which it is provided that the ratio of the minimum (total) cross-sectional area of the pressure medium feed, preferably of its part passing through the pressure chamber sleeve, to the pressure chamber to the minimum (total) cross-sectional area of the pressure medium connecting supply and discharge (s), in particular line (s) or opening (s), between pressure chamber and pressure accumulator from 25: 1 to 5: 1, preferably 16: 1 to 8: 1.
  • an embodiment is favorable, in particular for tapping devices, which essentially consists in that the counterblow mechanism and the rotating mechanism of common main supply / disposal supplies, in particular lines, via at least one medium flow switching element, preferably 3 -Way 2-position valve can be supplied and disposed of with the exclusion of the other with pressure medium.
  • a medium flow switching element preferably 3 -Way 2-position valve
  • the main supply / disposal guides, in particular lines, for rotary and counter-impact mechanism has electrical, pneumatic or hydraulic switching elements, which are each operatively connected via control lines to an actuating element of a medium flow switching element that feeds the rotating mechanism or the counter-impact mechanism with pressure medium.
  • FIG. 1 and 2 the longitudinal and transverse section through an inventive tapping device
  • Fig. 3 is a diagram for a Bohr réelles- control switching for the Druckme d iumszu Entry to turning or counter-striking mechanism by electrical means
  • Fig. 4 shows such a hydraulic control for an inventive device.
  • a striking mechanism 400 is provided, a double-acting piston 4 being slidably mounted in the interior 3 of a housing 40 with an end cap 401 holding a guide body 402, the energy supply being provided by a, not shown here, hydraulic pressure medium supply system takes place, and the back and forth movement Rl, R2 of the piston 4 is controlled by a changeover slide 5.
  • the piston 4 strikes during its oscillating movement on the plug-in stub 20 which is arranged in the direction of R2 towards the working tool and which is arranged in the two-part housing middle part 403 and in the front cap 39 and can also be moved back and forth in the direction R3, R4.
  • a pinion 14 which is detachably but non-rotatably connected and is supported by bearings 142, 143, is rotatably drivable via a shaft 12 mounted with bearings 102, the teeth 140 of which teeth 140 one with axial bearings 162, 163 rotatably mounted and with radial bearings 164, 165 against axial displacement secured hollow shaft 16, which hollow shaft 16 has radial force transmission wings 161 inside, which cooperate with the wings 201 of the stub 20.
  • the wings 201 of the oscillating movable stub 20 are slidable on the wings 161 in the axial direction, so that even if the piston 4 of the striking mechanism 400 strikes the stub 20, its rotating movement can take place at the same time.
  • the stub 20 has, for example adjoining its rotary wing 201, a collar 21, which is connected here in one piece, preferably all-round, and subsequently passes through an approximately L-shaped profile with a radially outwardly directed leg 315 in the direction R4 and stub 20 surrounding leg 316, ring-shaped counter-impact piston 31 of the counter-impact mechanism 300, the impact face 313 of the impact mechanism facing the impact mechanism cooperating with a face 212 of the collar 21 of the stub 20 facing away from the impact mechanism.
  • the piston 31 is in the pressure chamber 30, which can be supplied with pressure medium 60 via feed 35, 3 35 , in a sleeve 33 inserted in the front cap 39 of the tapping device so that it can be sealed against it.
  • the sleeve 33 has a radially inward-pointing projection 331, which the movement of the piston 31 in tool - facing direction R 4 limited.
  • the sleeve 33 is held axially immovable by means of an annular stop body 32, which at the same time limits the piston travel a in the direction R3 facing the striking mechanism.
  • flushing medium such as compressed air
  • 70 in FIG. 1. 1 also shows the impact point A of the striking piston end 41 on the stub 20, furthermore the dead center T of the piston 4 reached when the piston end 41 is idling with an oscillating movement, and the distance b between the points mentioned.
  • the total distance a can be covered by the piston 31 of the counter-impact mechanism 300 between the pressure chamber wall 322 of the stop ring 32 and the inner surface 332 of the projection 331 of the sleeve 33 is visible. It can also be seen that the distance a is greater than the distance b.
  • the pressure reservoir 50 which is also essential and is shown in more detail in the cross-sectional illustration in FIG.
  • the housing cap 39 of the counterblow mechanism 300 is penetrated by openings 35, 36 and 37 for the supply of fresh pressure medium 60 and the discharge of heated pressure medium 60 to be circulated and the oscillating supply / discharge of the pressure medium into a pressure accumulator 50.
  • a guide sleeve 33 which fits snugly against the cap housing 39, is arranged toward the pressure chamber 30 and is penetrated by openings 335, 336 and a plurality of openings 337 adjoining the openings 35, 36 and 37 of the cap 39. Close Lich, the pressure chamber 30 filled with the medium 60 is limited to the stub 20 by the extension 316 of the piston 31.
  • percussion pistons 4 of the percussion mechanism 400, insert stub 20 and counter-impact piston 31 are shown in two positions, with the piston 31 showing the impact and non-operating position, for example when rotating drilling.
  • the insertion stub 20 has a position in which the counter-impact piston 31 is pressurized and the stub collar 21 rests with its surface 212 on the counter-impact surface 313 of the piston 31 when the striking piston 4 strikes the stub 20.
  • the medium circuit is interrupted at all.
  • valve position III pressure medium is introduced via line 41 with filter 48 into the cylinder chamber 3 with percussion piston 4 of the striking mechanism 400 of the tapping device 1 according to the invention, its energy is converted there into oscillation-directed impact energy, via return line 42 with the aforementioned filter 48 and oil cooler 49 circulated medium, such as hydraulic oil, returned to the main tank 600.
  • the links Line 4 4 shown with controller 47 and filter 48 is by means of motor oil "driven compressor 2" with compressed air for oil mist lubrication of the drilling / impacting device 1, which is indicated schematically in FIG. 3 above the broken line, while below the energy supply and Control system 90 is indicated, supplied; the branch line 44a serves to supply the drill pipe and the front working tool with cooling and flushing medium.
  • valve 363 If in position I or III of valve 363 the solenoids Ml, M2 of valves 32, 32a are actuated via control lines sl, s2 by means of switches el, e2, they are switched over to position II, whereby the supply of medium to rotating mechanism 100 is switched off and the medium is conveyed via line 21, 11 or 21a, lla via a double-acting non-return valve 311, eventually via line 310, the counter striking mechanism 300 with the pressure chamber 30, pressure accumulator 50 and counter-impact piston 31 is supplied with pressure medium and the pulling operation by applying counter-impact energy to the not shown Einstec K stub with -
  • the electrical switch is only made when the main switch 80 is closed when the "ON" position of one of the 6 / 3- Directional valve 363 actuated switches el, e2, in each case the attraction of a relay with magnet M1, M2 for actuating the 3/2-way valves 32, 32a, thus in their position II, and a clean switchover from the supply of the rotating mechanism 100 to a supply of the counter-impact mechanism 300.
  • the main advantage of the supply and control system described is that only 4 main supply and disposal lines 41, 21, 42, 21a are required for the 3 functions turning, striking, counter-striking, which is particularly the case with tapping devices for blast furnaces with high Ambient temperatures is advantageous because there is a clear, mutually exclusive separation of the functions of the rotating mechanism 100 and the counter-impact mechanism 300 thus incorrect operation, which can damage the drilling or. Can lead tapping device is practically excluded.
  • FIG. 4 which relates only to the slewing gear and counterblow part of a tapping device 1, the same switching elements and analogous medium guidance are provided as in FIG. 3, only the control is carried out hydraulically, here one common supply pump 2 is provided for energy supply and control system; therefore they are the ones here individual elements of the medium supply are designated by the same reference symbols as in FIG. 3.
  • the hydraulic control is supplied with medium via line 81 with a 3/4-way valve 834 shown in the rest position II and performing the main on / off function, through which control medium can flow only in position I, for the switchover also shown here in rest position II -3 / 4-way valve 843 with control via lines 82, 83 opening into the inflow lines 21, 21a to the slewing gear 100. If the valve 834 is switched on in the I position, the control of the 4/2-way valve takes place. Valve 32 via line 84 for changing over to its II position, thus switching off the supply to the rotating mechanism 100 and switching to supplying the counter-impact mechanism 300 with pressure medium.
  • valve 8a In the III position of valve 843, valve 8a is activated via line 85 when valve 834 is switched on and this switches from supplying the rotating mechanism 100 for the reverse direction of rotation in the position I shown to exclusively supplying the counter-impact mechanism 300 in the position II.
  • Pressure reducing valves and pressure limiting valves of the system are in the 4 generally designated 70 and 71.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Drilling And Boring (AREA)
EP19850890148 1984-07-06 1985-07-03 Dispositif pour le forage à percussion et/ou rotation Expired EP0168382B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2195/84 1984-07-06
AT219584A AT383866B (de) 1984-07-06 1984-07-06 Einrichtung zum schlagenden und/oder drehenden bohren

Publications (2)

Publication Number Publication Date
EP0168382A1 true EP0168382A1 (fr) 1986-01-15
EP0168382B1 EP0168382B1 (fr) 1988-05-18

Family

ID=3529750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850890148 Expired EP0168382B1 (fr) 1984-07-06 1985-07-03 Dispositif pour le forage à percussion et/ou rotation

Country Status (4)

Country Link
EP (1) EP0168382B1 (fr)
JP (1) JPS6164995A (fr)
AT (1) AT383866B (fr)
DE (1) DE3562790D1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010465A1 (fr) * 1988-04-26 1989-11-02 Karagandinsky Politekhnichesky Institut Machine de forage hydraulique
FR2802970A1 (fr) * 1999-12-23 2001-06-29 Montabert Ets Dispositif d'alimentation hydraulique d'un appareil de forage roto-percutant
AT407919B (de) * 1998-01-19 2001-07-25 Boehler Pneumatik Internat Gmb Pneumatisch oder hydraulisch betreibbarer hammer und verwendung des hammers zum offenstellen oder zum verschliessen einer abstichöffnung eines metallurgischen gefässes
WO2005044492A1 (fr) * 2003-11-11 2005-05-19 Techmo Entwicklungs- Und Vertriebs Gmbh Procede et couronne de fleuret permettant de percer un trou, en particulier un trou de coulee dans un haut fourneau
EP2574874A1 (fr) * 2011-09-27 2013-04-03 TMT -BBG Research und Development GmbH Sonnerie pour une installation de marteau et procédé de maintien de position ouverte d'un trou de coulée
WO2016042234A1 (fr) * 2014-09-18 2016-03-24 Montabert Appareil de perforation hydraulique destiné à la perforation de trous de mine
EP2566665A4 (fr) * 2010-05-03 2016-04-13 Atlas Copco Rock Drills Ab Perceuse
WO2017223562A1 (fr) * 2016-06-24 2017-12-28 Berry Metal Company Dispositif de forage pneumatique
CN113404422A (zh) * 2021-06-30 2021-09-17 湖南烈岩科技有限公司 一种液压凿岩机
CN113738268A (zh) * 2021-09-13 2021-12-03 中国铁建重工集团股份有限公司 一种冲击凿岩设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012206452A1 (de) * 2012-04-19 2013-10-24 Hilti Aktiengesellschaft Handwerkzeugmaschine und Steuerungsverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023626A (en) * 1975-03-17 1977-05-17 Oy Tampella Ab Self-adaptive hydraulic rock drill
FR2455954A1 (fr) * 1978-05-11 1980-12-05 Tampella Oy Ab Appareil de percussion notamment pour dispositif de forage
US4342255A (en) * 1976-06-09 1982-08-03 Mitsui Engineering And Shipbuilding Co., Ltd. Oscillator actuated hydraulic impulse device
EP0064644A1 (fr) * 1981-05-05 1982-11-17 Paul Wurth S.A. Dispositif de centrage et de guidage d'une tige de perçage du trou de coulée d'un four à cuve et perceuse pourvue d'un tel dispositif
EP0081469A2 (fr) * 1981-11-26 1983-06-15 Atlas Copco Aktiebolag Appareil pour machine de forage à percussions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461633C2 (de) * 1974-12-27 1982-05-06 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Hydraulische Schlagvorrichtung
GB1584792A (en) * 1976-06-09 1981-02-18 Mitsui Shipbuilding Eng Oscillator actuated hydraulic percussion device
CH638587A5 (de) * 1979-02-12 1983-09-30 Uster Spindel Motoren Maschf Schlagbohrhammer.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023626A (en) * 1975-03-17 1977-05-17 Oy Tampella Ab Self-adaptive hydraulic rock drill
US4342255A (en) * 1976-06-09 1982-08-03 Mitsui Engineering And Shipbuilding Co., Ltd. Oscillator actuated hydraulic impulse device
FR2455954A1 (fr) * 1978-05-11 1980-12-05 Tampella Oy Ab Appareil de percussion notamment pour dispositif de forage
EP0064644A1 (fr) * 1981-05-05 1982-11-17 Paul Wurth S.A. Dispositif de centrage et de guidage d'une tige de perçage du trou de coulée d'un four à cuve et perceuse pourvue d'un tel dispositif
EP0081469A2 (fr) * 1981-11-26 1983-06-15 Atlas Copco Aktiebolag Appareil pour machine de forage à percussions

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5064003A (en) * 1988-04-26 1991-11-12 Neroznikov Jury I Hydraulic drilling machine
WO1989010465A1 (fr) * 1988-04-26 1989-11-02 Karagandinsky Politekhnichesky Institut Machine de forage hydraulique
AT407919B (de) * 1998-01-19 2001-07-25 Boehler Pneumatik Internat Gmb Pneumatisch oder hydraulisch betreibbarer hammer und verwendung des hammers zum offenstellen oder zum verschliessen einer abstichöffnung eines metallurgischen gefässes
FR2802970A1 (fr) * 1999-12-23 2001-06-29 Montabert Ets Dispositif d'alimentation hydraulique d'un appareil de forage roto-percutant
WO2001048350A1 (fr) * 1999-12-23 2001-07-05 Montabert S.A. Dispositif d'alimentation hydraulique d'un appareil de forage roto-percutant
US6883620B1 (en) 1999-12-23 2005-04-26 Montabert S.A. Device for hydraulic power supply of a rotary apparatus for percussive drilling
WO2005044492A1 (fr) * 2003-11-11 2005-05-19 Techmo Entwicklungs- Und Vertriebs Gmbh Procede et couronne de fleuret permettant de percer un trou, en particulier un trou de coulee dans un haut fourneau
EP2566665A4 (fr) * 2010-05-03 2016-04-13 Atlas Copco Rock Drills Ab Perceuse
US9347709B2 (en) 2011-09-27 2016-05-24 TMT-BBG Research and Development GmbH Impact tool for a hammer device and method for opening a tapping opening
EP2574874A1 (fr) * 2011-09-27 2013-04-03 TMT -BBG Research und Development GmbH Sonnerie pour une installation de marteau et procédé de maintien de position ouverte d'un trou de coulée
CN103009342A (zh) * 2011-09-27 2013-04-03 Tmt-Bbg研究与开发有限公司 用于锤击设备的撞击装置以及用于打开出料口的方法
US9903655B2 (en) 2011-09-27 2018-02-27 TMT-BBG Research and Development GmbH Impact tool for a hammer device and method for opening a tapping opening
FR3026041A1 (fr) * 2014-09-18 2016-03-25 Montabert Roger Appareil de perforation hydraulique destine a la perforation de trous de mine
WO2016042234A1 (fr) * 2014-09-18 2016-03-24 Montabert Appareil de perforation hydraulique destiné à la perforation de trous de mine
AU2015316695B2 (en) * 2014-09-18 2020-05-21 Montabert Hydraulic drilling apparatus intended for drilling blast holes
US10676997B2 (en) 2014-09-18 2020-06-09 Montabert Hydraulic drilling apparatus intended to drill boreholes
WO2017223562A1 (fr) * 2016-06-24 2017-12-28 Berry Metal Company Dispositif de forage pneumatique
CN113404422A (zh) * 2021-06-30 2021-09-17 湖南烈岩科技有限公司 一种液压凿岩机
CN113738268A (zh) * 2021-09-13 2021-12-03 中国铁建重工集团股份有限公司 一种冲击凿岩设备
CN113738268B (zh) * 2021-09-13 2024-04-05 中国铁建重工集团股份有限公司 一种冲击凿岩设备

Also Published As

Publication number Publication date
DE3562790D1 (en) 1988-06-23
ATA219584A (de) 1987-01-15
JPS6164995A (ja) 1986-04-03
AT383866B (de) 1987-09-10
EP0168382B1 (fr) 1988-05-18

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