EP0011287A1 - Down-the-hole drill for rock, earth or the like - Google Patents

Down-the-hole drill for rock, earth or the like Download PDF

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Publication number
EP0011287A1
EP0011287A1 EP79104495A EP79104495A EP0011287A1 EP 0011287 A1 EP0011287 A1 EP 0011287A1 EP 79104495 A EP79104495 A EP 79104495A EP 79104495 A EP79104495 A EP 79104495A EP 0011287 A1 EP0011287 A1 EP 0011287A1
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EP
European Patent Office
Prior art keywords
pulse generator
drilling
rock
percussion apparatus
frequency
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
EP79104495A
Other languages
German (de)
French (fr)
Other versions
EP0011287B1 (en
Inventor
Heinrich-Rudolf Dipl.-Ing. Hausherr
Friedheim Eckey
Herbert Dipl-Ing. Hausherr
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.)
Maschinenfabrik Rudolf Hausherr & Sohne & Co KG GmbH
Original Assignee
Maschinenfabrik Rudolf Hausherr & Sohne & Co KG GmbH
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 Maschinenfabrik Rudolf Hausherr & Sohne & Co KG GmbH filed Critical Maschinenfabrik Rudolf Hausherr & Sohne & Co KG GmbH
Priority to AT79104495T priority Critical patent/ATE5274T1/en
Publication of EP0011287A1 publication Critical patent/EP0011287A1/en
Application granted granted Critical
Publication of EP0011287B1 publication Critical patent/EP0011287B1/en
Expired 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • 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
    • B25D9/125—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure driven directly by liquid pressure working with pulses
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/20—Drives for drilling, used in the borehole combined with surface drive
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses

Definitions

  • the invention relates to a device for producing holes in rock, soil, etc., the drill motor or the like through a rotary leadthrough. communicates with a drill pipe at the end of which an impact device is attached.
  • Drilling represents one of the most important and versatile subject areas in mining above and underground as an aid in the extraction of mineral raw materials and in other underground procurement through blasting (Sprengloch-B.), For exploration and production of oil and natural gas (deep B.) as well as for general geological and depository investigation (prospect B). Recently, the drilling of shafts and high bridges has become increasingly important (large-diameter drilling). Depending on the rock strength, the process of cutting, rotating drilling, shattering, striking drilling with a transfer device or rotating and striking drilling (rotary impact drilling) is used for drilling.
  • Impact drilling uses an impact device in which a piston is moved back and forth and in this way transmits up to 3000 impacts per minute to the boring bar.
  • a special device on the impact device that is dependent on the piston movement ensures that the drill is moved.
  • Either compressed air feed cylinders or mountings with a special feed motor are used to support or relocate the impact device and press them on.
  • the lowering hammer drilling has proven particularly effective, since the impact device works deepest in the borehole and only the rotary movement outside the borehole is generated by means of a rotary motor.
  • the invention lies The object of the invention is to improve a device of the type mentioned at the outset while avoiding the aforementioned disadvantages in such a way that it can be adapted to the existing drilling conditions in a simple manner while maintaining the performance of the impact device.
  • this is achieved in that the striking piston of the percussion device is acted upon by pressure medium by means of a pulse generator, or the like, through hose lines via the rotary leadthrough. and the drill pipe is connected to both the top and bottom regions of the cylinder receiving the percussion piston.
  • the frequency of the pulse generator is adjustable, a hydraulic pressure medium advantageously being used.
  • This configuration makes it possible to operate under different drilling conditions, e.g. can be given by different types of rock layers, clay inclusions in hard rock, etc., to change the impact frequency of the impact device via the pulse generator, so that optimal conditions can be achieved in each case.
  • the frequency of the pulse generator can be controlled automatically or by hand, depending on changes in drilling progress, the drilling cuttings etc.
  • the impact device 4 is attached in the form of a deep hole hammer, the impact piston (not shown) of which strikes the shaft 5 of the drill bit 6.
  • the pulse generator 9 which is driven by the motor 10, is connected to the rotary union 2 via the lines 7, 8.
  • the pulse generator 9 is of conventional design, so that a description of the details is unnecessary.
  • the supply lines to the pulse generator 9 are designated 11 and 12.
  • the line 13 is used to supply a flushing agent to the rotary union 2 and via the drill pipe 3 to the drill bit 6.
  • the formation of the drill pipe 3 is such that a total of three lines are available within the drill pipe 3, namely a line for the detergent and the other two lines for the alternate supply and discharge of the hydraulic pressure medium on the top or bottom of the percussion piston Impact device 4.
  • concentrically arranged tubes can be used, or else tube bundles of three tubes. It is also possible with a bundle of two Tubes' to work, the third line being formed by an annular space which exists between the two tubes and the inner wall of the boring bar surrounding them.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Road Signs Or Road Markings (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

Device for making drillings into the rock, soil, etc., of which the motor is connected by a rotary coupling or similar to a drilling rod at the end of which is fitted a percussion apparatus. The object of the invention is to improve such device by adapting it in a simple manner, while maintaining the performances of the percussion apparatus, to the different conditions of the drilling. This is achieved due to the fact that the movements of the piston of the percussion apparatus (4) are caused by a pressure means by means of a pulse generator (9), which is connected to the rotary coupling (2) or similar and to the drilling rod (3) on top and at the bottom of the cylinder in which the striker piston moves. It is desirable to adjust the frequency of the percussion apparatus with the pulse generator (9), the adjustment of the frequency of the pulse generator (9) is effected automatically and depends on the feed conditions of the drilling. To move the percussion apparatus (4) a hydraulic means is used.

Description

Die Erfindung betrifft eine Vorrichtung zur Herstellung von Bohrungen in Gestein, Erdreich usw., deren Bohrmotor durch eine Drehdurchführung od.dgl. mit einem Bohrgestänge in Verbindung steht, an dessen Ende ein Schlaggerät angebracht ist.The invention relates to a device for producing holes in rock, soil, etc., the drill motor or the like through a rotary leadthrough. communicates with a drill pipe at the end of which an impact device is attached.

Das Bohren stellt einen der wichtigsten und vielseitigsten Sachbereiche im Bergbau über und unter Tage als Hilfsmittel bei der Gewinnung mineralischer Rohstoffe und bei der'sonstigen Raumbeschaffung unter Tage durch Sprengarbeit (Sprengloch-B.), zur Aufsuchung und Förderung von Erdöl und Erdgas (Tief-B.) sowie zur allgemeinen geologischen und lagerstättenkundlichen Untersuchung (Schürf-B.) dar. In letzter Zeit hat außerdem das Bohren von Schächten und Hochbrücken zunehmende Bedeutung erlangt (Großlnchbohrung). Je nach der Gesteinsfestigkeit wird beim Bohren das Verfahren des spanenden, drehenden Bohrens, des zertrümmernden, schlagenden Bohrens mit Umsetzvorrichtung oder des drehenden und schlagenden Bohrens (Drehschlagbohren) angewendet.Drilling represents one of the most important and versatile subject areas in mining above and underground as an aid in the extraction of mineral raw materials and in other underground procurement through blasting (Sprengloch-B.), For exploration and production of oil and natural gas (deep B.) as well as for general geological and depository investigation (prospect B). Recently, the drilling of shafts and high bridges has become increasingly important (large-diameter drilling). Depending on the rock strength, the process of cutting, rotating drilling, shattering, striking drilling with a transfer device or rotating and striking drilling (rotary impact drilling) is used for drilling.

Beim schlagenden Bohren findet ein Schlaggerät Verwendung, in dem ein Kolben vor- und zurückbewegt wird und auf diese Weise bis zu 3000 Schlägen je Minute auf die Bohrstange überträgt. Eine besondere, von der Kolbenbewegung abhängige Vorrichtung am Schlaggerät sorgt für ein Umsetzen des Bohrers.Impact drilling uses an impact device in which a piston is moved back and forth and in this way transmits up to 3000 impacts per minute to the boring bar. A special device on the impact device that is dependent on the piston movement ensures that the drill is moved.

Zur Abstützung bzw. Verlagerung des Schlaggerätes und zum Andrücken dienen entweder Druckluftvorschubzylinder oder Lafetten mit besonderem Vorschubmotor. Auf dem Gebiet des drehend-schlagenden Bohrens hat sich das Versenkhammerbohren besonders bewährt, da das Schlaggerät im Bohrlochtiefsten arbeitet und nur die Drehbewegung außerhalb des Bohrloches mittels eines Drehmotors erzeugt wird.Either compressed air feed cylinders or mountings with a special feed motor are used to support or relocate the impact device and press them on. In the field of rotary-impact drilling, the lowering hammer drilling has proven particularly effective, since the impact device works deepest in the borehole and only the rotary movement outside the borehole is generated by means of a rotary motor.

Beim Versenkhammerbohren ist es bekannt, die Steuerung im Gehäuse des Schlaggerätes vorzusehen. Dies hat den Nachteil, daß bei sich ändernden Bohrbedingungen eine Steuerung nur über die Höhe des Andruckes möglich ist, was aber bei einer Verringerung des Andruckes zu einem erheblichen Leistungsabfall und bei einer Erhöhung zu einer Gefahr der Zerstörung. der Bohrkrone führt. Die gleichen Nachteile ergeben sich.auch beim Versenkbohren mit einem hydraulisch beaufschlagten Schlaggerät, da dessen Steuerung sich ebenfalls im Schlaggerät befindet. Über ein Mchrfachgestänge ergibt sich zwar die Möglichkeit, Drucköl und Spülmittel getrennt zuzuführen, so daß eine hydraulische Beaufschlagung und. damit eine höhere Leistung des Schlaggerätes erforderlich ist, nicht aber eine den jeweiligen Gegebenheiten angepaßte Steuerung der Schlagzahl des Schinggerätes.When countersink hammer drilling, it is known to provide the control in the housing of the impact device. This has the disadvantage that, in the case of changing drilling conditions, control is only possible via the amount of the pressure, but this leads to a considerable drop in performance when the pressure is reduced and to a risk of destruction when increased. the drill bit leads. The same disadvantages also arise when countersinking with a hydraulically operated impact device, since its control is also located in the impact device. A multi-rod system gives the possibility of supplying pressure oil and detergent separately, so that hydraulic loading and. so that a higher performance of the impact device is required, but not a control of the number of strokes of the oscillating device adapted to the respective circumstances.

Von diesem Stand der Technik ausgehend liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art unter Vermeidung vorerwähnter Nachteile dahingehend zu verbessern, daß diese unter Beibehaltung der Leistung des Schlaggerätes eine Anpassung an die jeweils vorhandenen Bohrbedingungen in einfacher Weise ermöglicht.Starting from this prior art, the invention lies The object of the invention is to improve a device of the type mentioned at the outset while avoiding the aforementioned disadvantages in such a way that it can be adapted to the existing drilling conditions in a simple manner while maintaining the performance of the impact device.

Gemäß der Erfindung wird dies dadurch erreicht, daß die Beaufschlagung des Schlagkolbens des Schlaggerätes mit Druckmittel mittels eines Impulsgencrators erfolgt, welcher durch Schlauchleitungen über die Drehdurchführung od.dgl. und das Bohrgestänge sowohl an den oberseitigen als auch unterseitigen Bereich des den Schlagkolben aufnehmenden Zylinders angeschlossen ist. Die Frequenz des Impulsgenerators ist einstellbar, wobei vorteilhaft ein hydraulisches Druckmittel Verwendung findet.According to the invention, this is achieved in that the striking piston of the percussion device is acted upon by pressure medium by means of a pulse generator, or the like, through hose lines via the rotary leadthrough. and the drill pipe is connected to both the top and bottom regions of the cylinder receiving the percussion piston. The frequency of the pulse generator is adjustable, a hydraulic pressure medium advantageously being used.

Durch diese Ausgestaltung ist es möglich, bei unterschiedlichen Bohrbedingungen, wie sie z.B. durch verschiedenartige Gesteinsschichten, Lehmeinschlüsse in hartem Gestein usw. gegeben sein können, über den Impulsgenerator die Schlagfroquenz des Schlaggerätes zu verändern, so daß jeweils optimale Bedingungen erreicht werden können. Die Steuerung der Frequenz des Impulsgenerators kann in Abhängigkeit von Änderungen im Bohrfortschritt, vom anfallenden Bohrklein usw. selbsttätig oder von Hand erfolgen.This configuration makes it possible to operate under different drilling conditions, e.g. can be given by different types of rock layers, clay inclusions in hard rock, etc., to change the impact frequency of the impact device via the pulse generator, so that optimal conditions can be achieved in each case. The frequency of the pulse generator can be controlled automatically or by hand, depending on changes in drilling progress, the drilling cuttings etc.

Ein Ausführungsbeispiel der Erfindung ist an Hand der Zeichnung näher erläutert, und zwar zeigt diese in schematischer Darstellung eine Ansicht der Bohrvorrichtung.An embodiment of the invention is explained in more detail with reference to the drawing, and this shows a view of the drilling device in a schematic representation.

Mit 1 ist der Bohrmotor bezeichnet, welcher durch die Drehdurchführung 2 mit dem Bohrgostänge 3 in Antriebsverbindung steht. Am unteren Ende des Bohrgestänges 3 ist das Schlaggerät 4 in Form eines Tieflochhammers angebracht, dessen nicht weiter dargestellter Schlagkolben auf den Schaft 5 der Bohrkrone 6 schlagend einwirkt.1 with the drill motor is designated, which is in drive connection through the rotary union 2 with the drill rod 3. At the lower end of the drill pipe 3, the impact device 4 is attached in the form of a deep hole hammer, the impact piston (not shown) of which strikes the shaft 5 of the drill bit 6.

An die Drehdurchführung 2 ist über die Leitungen 7,8 der Impulsgenerator 9 angeschlossen, welcher von dem Motor 10 angetrieben ist. Der Impulsgenerator 9 ist herkömmlicher Bauart, so daß sich eine Beschreibung der Einzelheiten erübrigt.The pulse generator 9, which is driven by the motor 10, is connected to the rotary union 2 via the lines 7, 8. The pulse generator 9 is of conventional design, so that a description of the details is unnecessary.

Die Zufuhrleitungen zum Impulsgenerator 9 sind mit 11 und 12 bezeichnet. Die Leitung 13 dient der Zufuhr eines Spülmittels zur Drehdurchführung 2 und über das Bohrgestänge 3 zur Bohrkrone 6.The supply lines to the pulse generator 9 are designated 11 and 12. The line 13 is used to supply a flushing agent to the rotary union 2 and via the drill pipe 3 to the drill bit 6.

Die Ausbildung des Bohrgestänges 3 ist derart, daß insgesamt drei Leitungen innerhalb des Bohrgestänges 3 zur Verfügung stehen, und zwar eine Leitung für das Spülmittel und die beiden anderen Leitungen für die wechselweise Zufuhr und Abfuhr des hydraulischen Druckmittels auf die Ober- oder Unterseite des Schlagkolbens des Schlaggerätes 4. Zu diesem Zwecke können konzentrisch angeordnete Rohre Verwendung finden, oder aber auch Rohrbündel aus drei Rohren. Es ist auch möglich, mit einem Bündel von zwei Rohren'zu arbeiten, wobei die dritte Leitung von einem Ringraum gebildet ist, der zwischen den beiden Rohren und der Innenwandung der diese umgebenden Bohrstange besteht.The formation of the drill pipe 3 is such that a total of three lines are available within the drill pipe 3, namely a line for the detergent and the other two lines for the alternate supply and discharge of the hydraulic pressure medium on the top or bottom of the percussion piston Impact device 4. For this purpose, concentrically arranged tubes can be used, or else tube bundles of three tubes. It is also possible with a bundle of two Tubes' to work, the third line being formed by an annular space which exists between the two tubes and the inner wall of the boring bar surrounding them.

Claims (4)

1. Vorrichtung zur Herstellung von Bohrungen in Gestein, Erdreich usw., deren Bohrmotor durch eine Drehdurchführung od.dgl'. mit einem Bohrgestänge in Verbindung steht, an dessen Ende ein Schlaggerät vorgesehen ist, dadurch gekennzeichnet, daß die Beaufschlagung des Schlagkolbens des Schlaggerätes (4) mit Druckmittel mittels eines Impulsgenerators (9) erfolgt, welcher über die Drehdurchführung (2) od.dgl. und das Bohrgestänge (3) sowohl an den oberseitigen als auch unterseitigen Bereich des den Schlagkolben aufnehmenden Zylinders angeschlossen ist.1. Device for producing holes in rock, soil, etc., the drill motor or the like through a rotating union. is connected to a drill pipe, at the end of which a striking device is provided, characterized in that the striking piston of the striking device (4) is acted upon by pressure medium by means of a pulse generator (9), which or the like via the rotary feedthrough (2). and the drill pipe (3) is connected to both the top and bottom areas of the cylinder receiving the percussion piston. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Frequenz des Schlaggerätes an dem Impulsgenerator (9) einstellbar ist.2. Device according to claim 1, characterized in that the frequency of the impact device on the pulse generator (9) is adjustable. 3. Vorrichtung nach Anspruch 1 und/oder 2, dadurch gekennzeichnet daß ein hydraulisches Druckmittel zur Beaufschlagung des Schlaggerätcs (4) Verwendung findet.3. Apparatus according to claim 1 and / or 2, characterized in that a hydraulic pressure medium for acting on the impact device (4) is used. 4. Vorrichtung noch Anspruch 1 und/oder einem oder mehreren der folgenden, dadurch gekennzeichnet, daß die Steuerung der Frequenz des Impulsgenerators (9) selbsttätig in Abhängigkeit von Änderungen des Bohrfortschrittes erfolgt.4. Apparatus still claim 1 and / or one or more of the following, characterized in that the control of the frequency of the pulse generator (9) takes place automatically as a function of changes in the drilling progress.
EP79104495A 1978-11-20 1979-11-14 Down-the-hole drill for rock, earth or the like Expired EP0011287B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104495T ATE5274T1 (en) 1978-11-20 1979-11-14 PUNCHING HAMMER DRILLING JIG FOR ROCK, SOIL ETC.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2850225 1978-11-20
DE2850225A DE2850225C2 (en) 1978-11-20 1978-11-20 Device for producing holes in rock, soil and the like.

Publications (2)

Publication Number Publication Date
EP0011287A1 true EP0011287A1 (en) 1980-05-28
EP0011287B1 EP0011287B1 (en) 1983-11-09

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ID=6055114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104495A Expired EP0011287B1 (en) 1978-11-20 1979-11-14 Down-the-hole drill for rock, earth or the like

Country Status (11)

Country Link
EP (1) EP0011287B1 (en)
JP (1) JPS55500996A (en)
AR (1) AR227142A1 (en)
AT (1) ATE5274T1 (en)
DE (1) DE2850225C2 (en)
ES (1) ES486155A1 (en)
MA (1) MA18647A1 (en)
NO (1) NO793740L (en)
OA (1) OA06683A (en)
WO (1) WO1980001091A1 (en)
ZA (1) ZA796215B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515746A1 (en) * 1981-11-05 1983-05-06 Ingersoll Rand Co HYDRAULIC APPARATUS WITH RECIPROCATING MOVEMENTS, IN PARTICULAR HYDRAULIC PERFORATOR OR APPARATUS FOR PERCUSSION SOUNDING
EP0168368A1 (en) * 1984-07-12 1986-01-15 Atlas Copco Aktiebolag Control method and control device for a down-the-hole rock drill
US5168938A (en) * 1990-03-29 1992-12-08 Kabushikikaisha Takahashi Engineering Pile driver

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1052627A1 (en) * 1979-05-14 1983-11-07 Институт Горного Дела Со Ан Ссср Percussive machine
CA2354994C (en) * 2001-01-09 2007-03-20 Bruno Walter Acoustic flow pulsing apparatus and method for drill string
GB2410051B (en) * 2001-01-09 2005-09-07 Lewal Drilling Ltd Pressure pulsing apparatus at surface and method for drilling
US6910542B1 (en) 2001-01-09 2005-06-28 Lewal Drilling Ltd. Acoustic flow pulsing apparatus and method for drill string

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891416A (en) * 1929-07-26 1932-12-20 Irving C Harris Well drilling machine
DE1132067B (en) * 1961-10-31 1962-06-28 W Herbold Dr Ing Ram drilling device operated with compressed air
US3507341A (en) * 1969-06-24 1970-04-21 Ion Basgan Process and system for rotary drilling with drilling fluid imposed sonic vibrations
DE2311814A1 (en) * 1973-03-09 1974-09-12 Rilco Maschf OSCILLATING HYDROSTATIC IMPACT DRIVE
DE2541795A1 (en) * 1975-09-19 1977-03-31 Sieke Helmut Deep well rotary drill rig - with hydraulically superimposed percussive and/or rotary oscillating motion
DE2642133A1 (en) * 1976-09-18 1978-03-23 Ruhrkohle Ag Rotary and impact borehole drill operating system - varies frequency and amplitude to reduce power loss and noise (BE 20.3.78)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220805B (en) * 1964-12-24 1966-07-14 Salzgitter Maschinen Ag Drilling device for producing large holes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891416A (en) * 1929-07-26 1932-12-20 Irving C Harris Well drilling machine
DE1132067B (en) * 1961-10-31 1962-06-28 W Herbold Dr Ing Ram drilling device operated with compressed air
US3507341A (en) * 1969-06-24 1970-04-21 Ion Basgan Process and system for rotary drilling with drilling fluid imposed sonic vibrations
DE2311814A1 (en) * 1973-03-09 1974-09-12 Rilco Maschf OSCILLATING HYDROSTATIC IMPACT DRIVE
DE2541795A1 (en) * 1975-09-19 1977-03-31 Sieke Helmut Deep well rotary drill rig - with hydraulically superimposed percussive and/or rotary oscillating motion
DE2642133A1 (en) * 1976-09-18 1978-03-23 Ruhrkohle Ag Rotary and impact borehole drill operating system - varies frequency and amplitude to reduce power loss and noise (BE 20.3.78)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515746A1 (en) * 1981-11-05 1983-05-06 Ingersoll Rand Co HYDRAULIC APPARATUS WITH RECIPROCATING MOVEMENTS, IN PARTICULAR HYDRAULIC PERFORATOR OR APPARATUS FOR PERCUSSION SOUNDING
EP0168368A1 (en) * 1984-07-12 1986-01-15 Atlas Copco Aktiebolag Control method and control device for a down-the-hole rock drill
US5168938A (en) * 1990-03-29 1992-12-08 Kabushikikaisha Takahashi Engineering Pile driver

Also Published As

Publication number Publication date
ATE5274T1 (en) 1983-11-15
DE2850225C2 (en) 1983-12-22
NO793740L (en) 1980-05-21
ES486155A1 (en) 1980-05-16
WO1980001091A1 (en) 1980-05-29
DE2850225A1 (en) 1980-06-04
MA18647A1 (en) 1980-07-01
OA06683A (en) 1982-05-31
ZA796215B (en) 1981-09-30
JPS55500996A (en) 1980-11-20
AR227142A1 (en) 1982-09-30
EP0011287B1 (en) 1983-11-09

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