EP0906811B1 - Marteau de forage - Google Patents

Marteau de forage Download PDF

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Publication number
EP0906811B1
EP0906811B1 EP97810731A EP97810731A EP0906811B1 EP 0906811 B1 EP0906811 B1 EP 0906811B1 EP 97810731 A EP97810731 A EP 97810731A EP 97810731 A EP97810731 A EP 97810731A EP 0906811 B1 EP0906811 B1 EP 0906811B1
Authority
EP
European Patent Office
Prior art keywords
valve
motor
hammer drill
impact tool
throttle
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.)
Expired - Lifetime
Application number
EP97810731A
Other languages
German (de)
English (en)
Other versions
EP0906811A1 (fr
Inventor
Max Siegenthaler
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.)
Syntegon Packaging Systems AG
Original Assignee
SIG Produktionstechnik 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 SIG Produktionstechnik AG filed Critical SIG Produktionstechnik AG
Priority to DE59707289T priority Critical patent/DE59707289D1/de
Priority to AT97810731T priority patent/ATE217564T1/de
Priority to EP97810731A priority patent/EP0906811B1/fr
Priority to CA002248697A priority patent/CA2248697A1/fr
Priority to JP10279567A priority patent/JPH11159272A/ja
Priority to US09/165,862 priority patent/US6119793A/en
Publication of EP0906811A1 publication Critical patent/EP0906811A1/fr
Application granted granted Critical
Publication of EP0906811B1 publication Critical patent/EP0906811B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
    • E21B6/08—Separate drives for percussion and rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/006—Mode changers; Mechanisms connected thereto
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • E21B44/06—Automatic control of the tool feed in response to the flow or pressure of the motive fluid of the drive

Definitions

  • a hammer drill according to the preamble of claim 1 is known from the US-A-5 415 240 is known.
  • the turning mechanism of this hammer is made by driven a rotary motor.
  • the striking mechanism is operated by a rotary valve controlled via a gear connection from the rotary motor is driven.
  • This has the advantage that the beat frequency is proportional to the speed of the rotary motor and that that Hammer mechanism stops automatically if the drill steel gets stuck. This can save a lot of time and drilling equipment.
  • This hammer drill has therefore proven itself very well. However, he did a somewhat complex construction.
  • EP-A-145701 describes a further hammer drill according to the preamble of claim 1 described.
  • a pilot operated valve is arranged in the feed line to the striking mechanism.
  • the food pressure to the rotary motor is the pilot pressure of the pilot valve. If the drill steel gets stuck in the borehole, the Speed of the rotary motor towards zero. This increases the Feed pressure to the rotary motor so that the pilot valve feeds to the striking mechanism stops.
  • This solution requires a predetermined one Feed pressure to the rotary motor. Therefore this pressure cannot can be adapted to different rock formations. This The hammer drill is therefore relatively inflexible in use.
  • the present invention has for its object a To further develop hammer drills of the type mentioned at the outset, that it is simpler than the US-A-5 hammer drill 415 240 while maintaining its advantages and being flexible is in use. This task is characterized by the Features of claim 1 solved.
  • Figure 1 shows a hydraulic diagram for a hammer drill 9.
  • Der Hammer drill 9 has a housing, not shown, in which a Adapter is reciprocally and rotatably mounted. On his the adapter has a front end e.g. an external thread for connection of the drilling steel. The adapter is via a gear connection connected to a rotary motor 10. As far as corresponds the hammer of the representation according to FIG. 1 of US Pat. No. 5,415,240.
  • a striking mechanism 11 with a cylinder is coaxial with the adapter 12 guided pistons 13 and a piston rod 14 are arranged.
  • the end face of the rod 14 strikes against the rear end of the adapter.
  • the piston surface 15 on the rod side the supply pressure is constantly applied.
  • the opposite Surface 16 is alternated via a hammer mechanism valve 17 with feed pressure from the feed line 18 and with the return pressure connected in the return line 19.
  • Via pilot lines 20, 21, each in the cylinder space adjacent to an end position of the piston 13 open the valve spool of the valve 17 driven alternately in the two switch positions.
  • On the feed line 18 and the return line 19 are each a pressure accumulator 22, 23 connected.
  • the hammer 9 is connected to one via four pressure lines 30 to 33 Control station 34 connected.
  • the control station 34 has separate connections 35, 36 for the adjustable feed pressure to the rotary motor 10 and to the striking mechanism 11.
  • the return of the slewing gear and striking mechanism can be either a common or two separate connectors 37, 38 have.
  • the rotary motor 10 is operated via a three-position four-way valve 39 controlled so that the motor 10 rotate in both directions of rotation can.
  • One direction of rotation is used for drilling, the other for Unscrew the drill pipe.
  • the line 30 with Pressure is applied.
  • adjustable Throttle 40 installed and a parallel to it Check valve 41, which opens in the return direction. With The flow rate for the two can be set in the restrictors 40 Set directions of rotation separately.
  • Another adjustable throttle 42 is used in connection 37.
  • the feed pressure to the striking mechanism 11 is operated manually Two-position valve 46 controlled.
  • a pilot-controlled two-way valve 47 In series with this valve 46 is a pilot-controlled two-way valve 47 and in parallel for this purpose, a manually controlled two-way valve 48 is switched.
  • the Valve 47 can either be a switching valve (open-close valve) or, as shown, be a experimental valve.
  • the pilot print for Valve 47 is the return pressure of the slewing gear between the valve 39 and the throttle 42.
  • the hammer drill 9 described works as follows: Im Normal operation is the slide of the valve 39 in the lower one Position so that the feed pressure at the throttle 40 in the line 30 is pending and the line 31 connected to the return 37 is.
  • the valve 46 is switched on. While running Engine 10 results in a dynamic pressure upstream of throttle 42, so that the valve 47 is also switched on and the striking mechanism 11 running. If the drill pipe should get stuck in the rock, The engine 10 stops. The pilot pressure also drops immediately Valve 47 off, so that it switches off and the striking mechanism 11 stops.
  • the hammer drill is opened withdrawn his gun carriage.
  • the valve 39 is switched off.
  • the hammer mechanism can be activated by switching on the valve 48 be turned on despite the engine 10 stopped, so that Hammer vibrates. If that often screwed together from several rods If the drill pipe is to be dismantled, the The rearmost boring bar is extended from the borehole and the drill pipe on the sleeve to the second rear boring bar with one Clamping device clamped. Now the valve 39 is in its upper Position switched so that a torque on the adapter in the releasing Senses. If the threaded connection is stuck, it can the hammer mechanism 11 again by switching on the valves 46, 48 switched on and the threaded connection vibrated.
  • the hammer described is very versatile in use, because the striking mechanism and the boring machine operated independently of each other can still be the hammer mechanism when drilling stops immediately if the slewing gear does not turn. With that the time-consuming and sometimes impossible disassembly of a hammered, jammed drill pipe avoided.
  • the throttle 42 can do so be set so that the valve 47 switches off before the engine 10 has come to a complete standstill. This is from Advantage, because it makes the drill pipe stick even more securely is avoided. If the valve 47 as a proportional valve trained, can also be achieved that the Beat frequency increases with increasing speed of the motor 10.
  • the Ratio between speed and stroke frequency can with the Throttle 42 can be set, which for several types of rock Advantage is.
  • the hammer drill according to the invention is essential more simply constructed than the one mentioned at the beginning. That is why his External dimensions smaller, which is due to the limited space in tunneling or on superstructures of milling machines an advantage is.
  • the hammer mechanism valve 17 can, for example, laterally be installed so that the hammer drill 9 closer to the carriage can be assembled. This will make the drilling feed occurring moments smaller. Because the hydraulic coupling between slewing gear and striking mechanism from the return pressure of the rotating motor is derived, it is independent of the feed pressure at Rotary engine. This makes the hammer drill very flexible in use, especially for drilling in different rock types because the feed pressure is optimally adapted to the rock to be drilled can be.
  • the circuit described is suitable for hydraulic also for pneumatic drives.
  • valves especially those outside the Hammer 9
  • the actuation of the valves, especially those outside the Hammer 9 can alternatively to the type shown hydraulically, pneumatically, electrically or by hand.
  • Um with the right rotation, that means when loosening the thread of the drill pipe, that is, if at port A7 of valve 39 the Feed pressure is pending, to be able to operate the striking mechanism is the Connection 56 of the motor 55 additionally via an orifice 58 manual switching valve 59 and a check valve 60 with the Line 30 connected. So if a torque on the rotary motor 10 is in the loosening sense without turning, that is with tight thread, the thread can be switched on manually of the striking mechanism 11 can be shaken off. If with that Rotary hammer 9 is to be drilled in the clockwise sense, what For example, in Australia, the two connections swapped to the rotary motor 10.
  • the embodiment of Figure 3 is constructed similarly to that according to FIG. 2.
  • the elements 52 to 56 and 58 to 60 installed in the hammer drill 9.
  • the valve 59 is not manually controlled, but via a pilot line 63 from one hand-operated valve 64 pilot operated.
  • the stroke engine 55 drives the hammer mechanism valve 17 directly, so it is in this case a hammer mechanism valve motor.
  • the mode of action is analogous to that the embodiment of Figure 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Percussive Tools And Related Accessories (AREA)

Claims (10)

  1. Marteau de forage équipé d'un moteur rotatif (10) et d'un outil à percussion (11) avec un clapet d'outil à percussion (17), dans lequel le moteur rotatif (10) et le clapet d'outil à percussion (17) peuvent être alimentés, respectivement, au moyen d'un premier clapet (39) et au moyen d'un deuxième clapet (46), en milieu sous pression dans un poste de commande (34), où la fréquence de percussion de l'outil à percussion (11) est connectée au régime du moteur rotatif (10), de telle sorte que l'outil à percussion s'arrête lorsque le moteur rotatif est à l'arrêt, caractérisé en ce que, dans une conduite de retour (31, 37) du moteur rotatif (10), est intégré un réducteur de préférence réglable (42, 52), et en ce que la pression en amont de ce réducteur (42, 52) est réglée pour commander l'outil à percussion (11).
  2. Marteau de forage selon la revendication 1, dans lequel le réducteur (42) est intégré dans une conduite de retour du premier clapet (39), et dans lequel la pression en amont de ce réducteur (42) est avancée comme pression de commande sur un troisième clapet piloté (47), qui est agencé dans une des deux conduites (32, 33) allant jusqu'au clapet d'outil à percussion (17), afin de bloquer cette conduite (32, 33) lorsque la pression en amont du réducteur (42) est inférieure à une valeur minimale prédéterminée.
  3. Marteau de forage selon la revendication 2, dans lequel le troisième clapet (47) est un clapet proportionnel.
  4. Marteau de forage selon la revendication 2 ou 3, dans lequel, dans les deux conduites (30, 31) allant jusqu'au moteur rotatif (10), est agencé respectivement dans chacune d'elles un autre réducteur de préférence réglable (40) avec un clapet de retour connecté en parallèle (41), lequel s'ouvre dans le sens de retour.
  5. Marteau de forage selon l'une quelconque des revendications 2 à 4, dans lequel est connecté, parallèlement au troisième clapet (47), un quatrième clapet (48) pouvant être commandé directement à la main ou à distance.
  6. Marteau de forage selon la revendication 1, dans lequel au moins un courant partiel est envoyé dans une des conduites (31) vers le moteur rotatif (10) par l'intermédiaire d'un moteur synchronisé (55), lequel commande le clapet d'outil à percussion (17).
  7. Marteau de forage selon la revendication 6, dans lequel, dans l'une des conduites allant vers le moteur synchronisé (55) est agencé un clapet de surpression de préférence (54) réglable, de telle sorte que le moteur synchronisé (55) s'arrête avant que le moteur rotatif (10) ne s'arrête.
  8. Marteau de forage selon la revendication 6 ou 7, dans lequel le moteur synchronisé (55) peut être alimenté de plus au moyen d'un troisième clapet (59) pouvant être commandé directement à la main ou à distance placé sur un autre réducteur réglable (58).
  9. Marteau de forage selon l'une des revendications 6 à 8, dans lequel le moteur synchronisé (55) actionne un clapet synchronisé (57), lequel commande le clapet d'outil à percussion (17).
  10. Marteau de forage selon l'une des revendications 6 à 8, dans lequel le moteur synchronisé (55) actionne directement le clapet d'outil à percussion (17).
EP97810731A 1997-10-03 1997-10-03 Marteau de forage Expired - Lifetime EP0906811B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE59707289T DE59707289D1 (de) 1997-10-03 1997-10-03 Bohrhammer
AT97810731T ATE217564T1 (de) 1997-10-03 1997-10-03 Bohrhammer
EP97810731A EP0906811B1 (fr) 1997-10-03 1997-10-03 Marteau de forage
CA002248697A CA2248697A1 (fr) 1997-10-03 1998-09-23 Perforatrice
JP10279567A JPH11159272A (ja) 1997-10-03 1998-10-01 削岩機
US09/165,862 US6119793A (en) 1997-10-03 1998-10-02 Rock drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97810731A EP0906811B1 (fr) 1997-10-03 1997-10-03 Marteau de forage

Publications (2)

Publication Number Publication Date
EP0906811A1 EP0906811A1 (fr) 1999-04-07
EP0906811B1 true EP0906811B1 (fr) 2002-05-15

Family

ID=8230413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810731A Expired - Lifetime EP0906811B1 (fr) 1997-10-03 1997-10-03 Marteau de forage

Country Status (6)

Country Link
US (1) US6119793A (fr)
EP (1) EP0906811B1 (fr)
JP (1) JPH11159272A (fr)
AT (1) ATE217564T1 (fr)
CA (1) CA2248697A1 (fr)
DE (1) DE59707289D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014011073B3 (de) * 2014-07-30 2015-11-12 Danfoss Power Solutions Gmbh & Co. Ohg 1Motordrehzahlbegrenzungsvorrichtung

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802970B1 (fr) * 1999-12-23 2002-03-08 Montabert Ets Dispositif d'alimentation hydraulique d'un appareil de forage roto-percutant
FI119654B (fi) * 2002-11-05 2009-01-30 Sandvik Tamrock Oy Menetelmä ainakin kahden hydraulisen toimilaitteen toiminnan ohjaamiseksi, seurantaventtiili sekä edelleen kallionporauslaite
CN102425401B (zh) * 2011-11-18 2014-05-28 山河智能装备股份有限公司 液压凿岩钻机凿岩动作电液逻辑控制回路
SE538237C2 (sv) * 2014-07-04 2016-04-12 Lkab Wassara Ab Vätskedriven sänkborrmaskin med indexering medelst intermittent trycksättning
CN108194444B (zh) * 2018-03-20 2024-02-13 马鞍山唐拓凿岩机械有限公司 一种顶锤钻机的防空打液压***及其控制方法
CN109854553B (zh) * 2019-04-03 2024-04-19 四川钻神智能机械制造有限公司 一种凿岩台车的遇空洞防卡钎***
CN112628231B (zh) * 2021-01-29 2022-08-02 中铁工程装备集团有限公司 一种自动钻进控制阀组、控制***及其控制方法

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Publication number Priority date Publication date Assignee Title
FR2129276A5 (fr) * 1971-03-18 1972-10-27 Montabert Ets
US4006783A (en) * 1975-03-17 1977-02-08 Linden-Alimak Ab Hydraulic operated rock drilling apparatus
US4023626A (en) * 1975-03-17 1977-05-17 Oy Tampella Ab Self-adaptive hydraulic rock drill
US4064950A (en) * 1976-07-19 1977-12-27 Pekka Salmi Hydraulic drilling machine
US4157736A (en) * 1978-01-11 1979-06-12 Carbert Ralph E Overload protection apparatus for hydraulic multi-function equipment
FI56723C (fi) * 1978-05-11 1980-03-10 Tampella Oy Ab Styrningssystem foer borrmaskin
JPS5655684A (en) * 1979-10-06 1981-05-16 Toyo Kogyo Co Feed controller circuit for hydraulic rock driller
FI67604C (fi) * 1983-06-14 1985-04-10 Tampella Oy Ab Foerfarande och anordning foer reglering av matningsroerelsen hos en borrstaong vid bergborrning
AT381363B (de) * 1983-11-08 1986-10-10 Ver Edelstahlwerke Ag Vorrichtung zum schlagenden bohren
JPH03500559A (ja) * 1988-04-26 1991-02-07 カラガンディンスキイ　ポリテフニチェスキイ　インスティテュト 液体圧ボーリングマシン
FI86008C (fi) * 1989-04-06 1992-06-25 Tampella Oy Ab Foerfarande och anordning foer reglering av en bergborrningsmaskin.
DE4027021A1 (de) * 1990-08-27 1992-03-05 Krupp Maschinentechnik Hydraulisch betriebene schlagdrehbohrvorrichtung, insbesondere zum ankerlochbohren
JPH06108770A (ja) * 1992-08-31 1994-04-19 Sig (Schweiz Ind Ges) ロックドリル用ドリル装置
FI95166C (fi) * 1994-04-14 1995-12-27 Tamrock Oy Sovitelma painenestekäyttöisessä kallionporauslaitteessa

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014011073B3 (de) * 2014-07-30 2015-11-12 Danfoss Power Solutions Gmbh & Co. Ohg 1Motordrehzahlbegrenzungsvorrichtung

Also Published As

Publication number Publication date
US6119793A (en) 2000-09-19
ATE217564T1 (de) 2002-06-15
CA2248697A1 (fr) 1999-04-03
JPH11159272A (ja) 1999-06-15
DE59707289D1 (de) 2002-06-20
EP0906811A1 (fr) 1999-04-07

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