EP1162037A1 - Rotary percussion device for a drill string - Google Patents

Rotary percussion device for a drill string Download PDF

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Publication number
EP1162037A1
EP1162037A1 EP00112146A EP00112146A EP1162037A1 EP 1162037 A1 EP1162037 A1 EP 1162037A1 EP 00112146 A EP00112146 A EP 00112146A EP 00112146 A EP00112146 A EP 00112146A EP 1162037 A1 EP1162037 A1 EP 1162037A1
Authority
EP
European Patent Office
Prior art keywords
rotary
rotary impact
impact
insertion end
percussion
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
EP00112146A
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German (de)
French (fr)
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EP1162037B1 (en
Inventor
Andrea Linard Mathis
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.)
MATHIS, ANDREA LINARD
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Mathis Andrea Linard
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
Priority to DE50010923T priority Critical patent/DE50010923D1/en
Application filed by Mathis Andrea Linard filed Critical Mathis Andrea Linard
Priority to PT00112146T priority patent/PT1162037E/en
Priority to AT00112146T priority patent/ATE301533T1/en
Priority to DK00112146T priority patent/DK1162037T3/en
Priority to ES00112146T priority patent/ES2246771T3/en
Priority to EP00112146A priority patent/EP1162037B1/en
Priority to US10/276,433 priority patent/US6843329B2/en
Priority to CA002410400A priority patent/CA2410400A1/en
Priority to PCT/CH2001/000344 priority patent/WO2001094079A1/en
Priority to AU2001260005A priority patent/AU2001260005A1/en
Publication of EP1162037A1 publication Critical patent/EP1162037A1/en
Application granted granted Critical
Publication of EP1162037B1 publication Critical patent/EP1162037B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
    • 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
    • E21B6/02—Drives for drilling with combined rotary and percussive action the rotation being continuous
    • E21B6/04—Separate drives for percussion and rotation

Definitions

  • the invention relates to a rotary impact device for a A drill pipe according to claim 1.
  • Devices of this type e.g. in the company script by Atlas Copco No. 6991 0757 04a dated March 1998 are shown allow the transfer of high performance and result correspondingly good drilling performance, such as high drilling progress and low drilling costs.
  • the possible duration of use of the one serving as a rotary impact receiver Plugging can be increased by the impact energy is reduced. To increase drilling performance however, increasingly higher impact energies are sought.
  • the object of the present invention is therefore a Creating a rotary impact device for a drill pipe which has a higher resilience, so that increased availability of the device higher impact energies are applicable.
  • the over the percussion piston on the high Torque-applied rotary impact receiver transmitted Impact energy therefore has a greatly reduced impact on the decoupled from the impact device according to the invention Plug-in end that due to the reduced load over can be operated for a relatively long time without Material fatigue occur, which is a repair of the Make a rotary impact device necessary.
  • the inventive Rotary impact device therefore requires only a small amount Maintenance and repair work. Furthermore increases due to the extension of the maintenance intervals the availability of the Device, resulting in a marked reduction in operating costs results.
  • the plug end decoupled from the impact device does not work more than sound box and isolates at the same time Vibrations of the percussion piston.
  • the noise reduction leads to a relief for the staff and other persons who if necessary close to those put into operation Stop the device.
  • the device body is preferably designed in such a way that there are at least two spaced apart areas are provided, in which, for example, by means of a preferably hydraulic or pneumatic rotary actuator insertion end driven by a toothed gear can be stored.
  • the Inserted between the areas where it is in the device body is stored on a stop surface that too a holding element connected to the device body corresponds through which the insertion end in axial Direction is held and damped if necessary.
  • the insertion end preferably has an external toothing, in that engages a gear or that of one with a Internal toothed ring is included, on the Scope coupling elements for the engagement of the rotating device are provided.
  • the rotary impact receiver Connector may have the insertion end a flange on the one end of the insertion end supported comprehensive part of the device body is.
  • This part that encloses the insertion end on the output side can with a preferably hydraulic damping element connected to the device body so that the Plug-in end for vibrations and strikes of the striking mechanism can resonate. Indirectly transmitted to the insertion end Impact energy therefore does not cause material deformation for example on the connector, but is in Damping element absorbed.
  • the holding element e.g. a retaining ring, with a Damping element can be connected.
  • the plugin and especially that associated with the rotary impact receiver Connector is therefore not only of the Impact device directly delivered impact energy that the Rotary impact receiver is fed via the percussion piston, but also indirectly from the rotary impact receiver transmitted impact energy decoupled so that early Material fatigue at the junction between Plug-in ends and rotary shock receivers can be avoided.
  • By the solution according to the invention will therefore also damage the Inserted ends and avoided on the rotary impact receiver.
  • the percussion piston provided in the insertion end exists preferably from a cylindrical part and a Connector or a shoulder provided therein partially protruding flange, which prevents the Percussion piston axially due to the repercussions of the drill pipe running back.
  • the invention is also in so-called double striking mechanisms can be used advantageously.
  • the percussion piston and one with the Percussion piston co-operating percussion hammer of the striking device have axially extending bores, in those of a further rotating device and / or one further impact device driven drive means for a second, preferably within the first drill pipe arranged drill pipe are provided.
  • the second drill string directly or indirectly connectable inner insertion end, preferably a rotary shock shaft, provided that rotating and / or striking or rotating acted upon and with an axially extending bore is provided, within which a striking inner percussion piston is arranged.
  • Fig. 1 shows an inventive, for driving a Rotary impact device 1 with a drill pipe Cylinder housing or a device body 8, in which a with an insertion end 3 coupled rotating device 5 and Percussion mechanism or an impact device 6 are provided, the with an axially extending bore 37 of the Insertable 3 displaceable percussion piston 4 cooperates.
  • the insertion end 3, which is used to transmit one of the Turning device 5 generated torque to a Drill pipe connectable rotary impact receiver 2 is used, has two spaced-apart, cylindrical sections 31, 32 on that in the device body 8 in corresponding Areas 81, 83 are supported or are encased by bearing shells.
  • the insertion end 3 has a toothing 35, which over a toothed gear 52, 53 with a preferably one hydraulic or pneumatic rotary drive Drive shaft 51 of the rotating device 5 is coupled.
  • the end of the insertion end facing the rotary impact receiver 2 3, which opens out of the device body 8, has a connecting piece 33 with an external thread 38, which is provided with an internal thread 22 Threaded hole 21 is screwed into the rotary impact receiver 2.
  • the percussion piston 4 has one facing the percussion device 6 and a piston-shaped hammer 61 acted upon first end piece 42, a cylindrical, in the bore 37 of the insertion end 3 mounted body 41 and a second end piece 43, which is in the form of a flange the connector 33 within the rotary impact receiver 2 provided threaded hole 21 overlaps on the front and preferably between connector 33 and rotary impact receiver 2 is held firmly. From the impact device 6 or the blows given to the hammer 61 are therefore by means of the percussion piston 4 directly on the rotary impact receiver 2 transferred.
  • the insertion end 3 then points to the Rotary impact receiver 2 connected connector 33 a conical flange 34, which in another Embodiment of the invention as a stop for the rotary impact receiver 2 can serve.
  • the flange 34 designed in a ring shape and on one side at the insertion end 3 part 85 of the device body comprising on the output side 8 then arranged so that repercussions from Drill rods are transferred to part 85.
  • Part 85 in this case is preferably a hydraulic one Damping element connected to the device body 8, so that the insertion end 3 in the event of vibrations and setbacks of the Can vibrate the drill pipe damped.
  • Impact energies indirectly transmitted to the insertion end 3 therefore do not cause material deformation, for example on the connector 33 or the external thread provided thereon 38, but are absorbed in the damping element 84.
  • the rotary impact receiver 2 shown for example in FIG. 1 is by means of an external thread 25 with an external Drill pipe and by means of an axially provided threaded hole 26 connectable to an inner drill pipe.
  • an axially provided threaded hole 26 connectable to an inner drill pipe.
  • By the threaded bore 26 and an adjoining, after outside channel 24 is also a detergent passable.
  • direct is also possible Connection of the insertion end 3 to the drill pipe, without Interposition of the rotary impact receiver serving as an adapter 2nd
  • Fig. 2 shows a preferred embodiment of the rotary impact device 1, which is used to separately drive an inner and an outer drill pipe is provided and one hollow cylindrical percussion piston 4 and one with the Percussion piston 4 interacting hollow cylindrical Percussion hammer 61 having axially extending Bores 44; 62 are provided.
  • Drive means 30, 40 provided for the second drill pipe, that of a second rotating device 50 and a second Impact device 60 driven and one with one Thread 201 provided internal rotary impact receiver 200 are connected.
  • the inner drill pipe can also be used directly be connected to the drive means 30, 40.
  • Inside and outer drill pipe, possibly also in the as an adapter serving rotary impact receivers 2, 200 are preferred Channels provided that the supply and discharge of a flushing medium or the implementation of electrical cables.
  • the inner insertion end 30 is from the second rotating device 50 powered while the inner percussion piston 40 independently of the second impact device 60 is acted upon.
  • the functioning of the inner Inserting 30 and the inner percussion piston 40 and the associated drive devices 50, 60 therefore corresponds to Functionality of the corresponding outer device parts 3, 4, 5 and 6.
  • the inner insertion end 30 is therefore also largely decoupled from the impact energies by the second impact device 60 via the internal impact piston 40 be transferred to the inner drill pipe. Early Material fatigue at critical points is therefore also in these inner device parts 30 and 40 and the inner rotary impact receiver 200 or the drill pipe avoided.
  • the in the bores 44; 62 of the percussion piston 4 and Impact hammer 61 provided drive means 30, 40 can of course, be designed and operated differently become.
  • the use of only one inner is possible Shaft that is rotating, striking or rotating striking is.
  • the end piece 43 has the shape of a flange that is partially sunk into the insertion end 3 and on one side one provided in the axially extending bore 37 Shoulder 39 may apply, which is the return of the Percussion piston 4 prevented.
  • the end piece 43 is on the the other side into a provided in the rotary impact receiver 2, recess 24 adapted to end piece 43. Thereby can relieve other zones of the rotary impact receiver 2 so that material damage there is avoided.
  • Tail 43 and shoulder 39 play to be available.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling Tools (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

The rotary hammer device (1) has a hammer (6) and an insert end (3) rotatably mounted in a body (8) of the device. This insert end has an axially aligned bore (37) in which a hammer piston (4) is mounted displaceable. A first end (42) of the piston faces the hammer device and the second end (43) faces the hammer receiver (2) so that knocks sent out from the hammer device can be transferred directly to the receiver through the hammer piston. The insert end has elements (35) coupled in keyed engagement with the rotary device (5) which preferably has a pneumatic or hydraulically operating rotary drive.

Description

Die Erfindung betrifft eine Drehschlagvorrichtung für ein Bohrgestänge nach Anspruch 1.The invention relates to a rotary impact device for a A drill pipe according to claim 1.

Aus der Offenlegungsschrift DE-A-19 09 931 sind gattungsgemässe Vorrichtungen bekannt, bei denen eine Maschine vorgesehen ist, die auf ein mit einer Bohrkrone versehenes Bohrgestänge einerseits eine Drehbewegung und andererseits Schläge ausübt. Oft weisen diese Vorrichtungen Innen- und Aussenbohrgestänge auf, die gegebenenfalls unabhängig voneinander drehschlagend beaufschlagt werden können. Zum Wegführen von Bohrgut, das während dem Betrieb der Vorrichtung in einem Bohrloch freigesetzt wird, ist innerhalb des Aussenbohrgestänges vorzugsweise ein Kanal vorgesehen, durch den zusätzlich ein Transportmedium geführt wird. Zur Befestigung des Bohrgestänges weist die Drehschlagvorrichtung einen Bohrerhalter bzw. ein sogenanntes Einsteckende mit einem Verbindungsstück auf, mittels dem die von der Drehschlagvorrichtung erzeugte Dreh- und Schlagenergie auf das Bohrgestänge übertragen wird.From the published patent application DE-A-19 09 931 are generic Devices known in which a machine is provided, which is provided with a drill bit Drill pipe on the one hand a rotary movement and on the other hand Strikes. Often these devices have interior and External drill pipe on, which may be independent can be acted upon by each other in a rotational manner. To the Carrying away drilling material that is in operation during the Device released in a borehole is inside a channel is preferably provided in the outer drill pipe, through which a transport medium is additionally passed. For Attachment of the drill pipe has the rotary impact device a drill holder or a so-called insertion end with a connector by means of which the of the Rotary impact device generates rotational and impact energy the drill pipe is transferred.

Vorrichtungen dieser Art, wie sie z.B. in der Firmenschrift von Atlas Copco No. 6991 0757 04a vom März 1998 gezeigt sind, erlauben die Übertragung hoher Leistungen und ergeben entsprechend gute Bohrleistungen, wie hohen Bohrfortschritt und tiefe Bohrmeterkosten.Devices of this type, e.g. in the company script by Atlas Copco No. 6991 0757 04a dated March 1998 are shown allow the transfer of high performance and result correspondingly good drilling performance, such as high drilling progress and low drilling costs.

Die Anwendung hoher Dreh- und Schlagenergien führt bei diesen bekannten Vorrichtungen jedoch zu einer hohen mechanischen Beanspruchung des Einsteckendes, insbesondere des Verbindungsstücks und der Drehverzahnung, so dass diese Teile jeweils nach verhältnismässig kurzer Einsatzdauer ersetzt werden müssen, woraus ein erheblicher Wartungsaufwand und eine begrenzte Verfügbarkeit der Vorrichtung resultiert.The application of high rotational and impact energies leads to these known devices, however, to a high mechanical Strain on the insertion end, especially the connector and the serration so these parts replaced after a relatively short period of use have to be, which results in a considerable maintenance effort and limited availability of the device results.

Die mögliche Einsatzdauer des als Drehschlagempfänger dienenden Einsteckendes kann erhöht werden, indem die Schlagenergie reduziert wird. Zur Steigerung der Bohrleistungen werden jedoch zunehmend höhere Schlagenergien angestrebt. The possible duration of use of the one serving as a rotary impact receiver Plugging can be increased by the impact energy is reduced. To increase drilling performance however, increasingly higher impact energies are sought.

Aufgabe der vorliegenden Erfindung ist es daher, eine Drehschlagvorrichtung für ein Bohrgestänge zu schaffen, welche eine höhere Belastbarkeit aufweist, so dass bei gesteigerter Verfügbarkeit der Vorrichtung höhere Schlagenergien anwendbar sind.The object of the present invention is therefore a Creating a rotary impact device for a drill pipe which has a higher resilience, so that increased availability of the device higher impact energies are applicable.

Die Lösung dieser Aufgabe gelingt mit einer Vorrichtung, welche die in Anspruch 1 angegebenen Merkmale aufweist. Vorzugsweise Ausgestaltungen der Erfindung sind in weiteren Ansprüchen angegeben.This problem is solved with a device which has the features specified in claim 1. Further configurations of the invention are preferred Claims specified.

Die erfindungsgemässe, zum Antreiben wenigstens eines Bohrgestänges dienende Drehschlagvorrichtung verfügt über eine Schlag- und eine Drehvorrichtung sowie ein in einem Vorrichtungskörper drehbar gelagertes Einsteckende, das eine axial verlaufende Bohrung aufweist, in der ein Schlagkolben axial verschiebbar gelagert ist. Das mittels eines Verbindungsstücks und vorzugsweise eines Drehschlagempfängers mit dem Bohrgestänge verbundene Einsteckende wird von der Drehvorrichtung und der im Einsteckende gelagerte Schlagkolben wird unabhängig davon von der Schlagvorrichtung angetrieben. Die über den Schlagkolben auf den mit hohem Drehmoment beaufschlagten Drehschlagempfänger übertragene Schlagenergie hat daher stark reduzierte Auswirkungen auf das erfindungsgemäss von der Schlagvorrichtung entkoppelte Einsteckende, das aufgrund der reduzierten Belastung über verhältnismässig lange Zeit betrieben werden kann, ohne dass Materialermüdungen auftreten, die eine Reparatur der Drehschlagvorrichtung notwendig machen. Die erfindungsgemässe Drehschlagvorrichtung bedingt daher nur einen geringen Wartungs- und Reparaturaufwand. Ferner erhöht sich aufgrund der Verlängerung der Wartungsintervalle die Verfügbarkeit der Vorrichtung, woraus eine markante Senkung der Betriebskosten resultiert.The invention, for driving at least one Rotary impact device serving drill pipe features a striking and rotating device and one in one Device body rotatably inserted insertion end, the one has axially extending bore in which a percussion piston is axially displaceable. That by means of a Connector and preferably a rotary impact receiver with the drill pipe connected insertion end of the Rotary device and the percussion piston mounted in the insertion end regardless of the impact device driven. The over the percussion piston on the high Torque-applied rotary impact receiver transmitted Impact energy therefore has a greatly reduced impact on the decoupled from the impact device according to the invention Plug-in end that due to the reduced load over can be operated for a relatively long time without Material fatigue occur, which is a repair of the Make a rotary impact device necessary. The inventive Rotary impact device therefore requires only a small amount Maintenance and repair work. Furthermore increases due to the extension of the maintenance intervals the availability of the Device, resulting in a marked reduction in operating costs results.

Mit der erfindungsgemässen Drehschlagvorrichtung wird zudem eine deutliche Reduktion des Lärms erzielt, der beim Betrieb derartiger Vorrichtungen auftritt. Das erfindungsgemäss von der Schlagvorrichtung entkoppelte Einsteckende wirkt nicht mehr als Resonanzkörper und isoliert gleichzeitig Schwingungen des Schlagkolbens. Die Lärmreduktion führt zu einer Entlastung des Personals sowie weiterer Personen, die sich gegebenenfalls in der Nähe der in Betrieb gesetzten Vorrichtung aufhalten.With the rotary impact device according to the invention achieved a significant reduction in noise during operation such devices occurs. According to the invention by the plug end decoupled from the impact device does not work more than sound box and isolates at the same time Vibrations of the percussion piston. The noise reduction leads to a relief for the staff and other persons who if necessary close to those put into operation Stop the device.

Der Vorrichtungskörper ist vorzugsweise derart ausgestaltet, dass darin wenigstens zwei voneinander beabstandete Bereiche vorgesehen sind, in denen das beispielsweise mittels einem vorzugsweise hydraulisch oder pneumatisch arbeitenden Drehantrieb über ein Zahngetriebe angetriebene Einsteckende gelagert werden kann.The device body is preferably designed in such a way that there are at least two spaced apart areas are provided, in which, for example, by means of a preferably hydraulic or pneumatic rotary actuator insertion end driven by a toothed gear can be stored.

In einer weiteren vorzugsweisen Ausgestaltung weist das Einsteckende zwischen den Bereichen, in denen es im Vorrichtungskörper gelagert ist, eine Anschlagfläche auf, die zu einem mit dem Vorrichtungskörper verbundenen Halteelement korrespondiert, durch das das Einsteckende in axialer Richtung gehalten und gegebenenfalls gedämpft wird. Das Einsteckende weist vorzugsweise eine Aussenverzahnung auf, in die ein Zahnrad eingreift oder die von einem mit einer Innenverzahnung versehenen Ring umfasst wird, an dessen Umfang Koppelelemente für den Eingriff der Drehvorrichtung vorgesehen sind.In a further preferred embodiment, the Inserted between the areas where it is in the device body is stored on a stop surface that too a holding element connected to the device body corresponds through which the insertion end in axial Direction is held and damped if necessary. The The insertion end preferably has an external toothing, in that engages a gear or that of one with a Internal toothed ring is included, on the Scope coupling elements for the engagement of the rotating device are provided.

Anschliessend an das mit dem Drehschlagempfänger zu verbindende Verbindungsstück weist das Einsteckende gegebenenfalls einen Flansch auf, der auf einem das Einsteckende ausgangsseitig umfassenden Teil des Vorrichtungskörpers abgestützt ist. Dieses das Einsteckende ausgangsseitig umfassende Teil kann über ein vorzugsweise hydraulisches Dämpfungselement mit dem Vorrichtungskörper verbunden sein, so dass das Einsteckende bei Vibrationen und Schlägen des Schlagwerks mitschwingen kann. Auf das Einsteckende indirekt übertragene Schlagenergie verursacht daher keine Materialverformungen beispielsweise am Verbindungsstück, sondern wird im Dämpfungselement absorbiert. Wie oben erwähnt kann statt dessen das Halteelement, z.B. ein Haltering, mit einem Dämpfungselement verbunden sein. Das Einsteckende und insbesondere das mit dem Drehschlagempfänger verbundene Verbindungsstück wird daher nicht nur von der von der Schlagvorrichtung direkt abgegebenen Schlagenergie, die dem Drehschlagempfänger über den Schlagkolben zugeführt wird, sondern auch von der über den Drehschlagempfänger indirekt übertragenen Schlagenergie entkoppelt, so dass frühzeitige Materialermüdungen an der Verbindungsstelle zwischen Einsteckende und Drehschlagempfänger vermieden werden. Durch die erfindungsgemässe Lösung werden daher auch Schäden am Einsteckende und am Drehschlagempfänger vermieden.Subsequent to the one to be connected to the rotary impact receiver Connector may have the insertion end a flange on the one end of the insertion end supported comprehensive part of the device body is. This part that encloses the insertion end on the output side can with a preferably hydraulic damping element connected to the device body so that the Plug-in end for vibrations and strikes of the striking mechanism can resonate. Indirectly transmitted to the insertion end Impact energy therefore does not cause material deformation for example on the connector, but is in Damping element absorbed. As mentioned above can take place of which the holding element, e.g. a retaining ring, with a Damping element can be connected. The plugin and especially that associated with the rotary impact receiver Connector is therefore not only of the Impact device directly delivered impact energy that the Rotary impact receiver is fed via the percussion piston, but also indirectly from the rotary impact receiver transmitted impact energy decoupled so that early Material fatigue at the junction between Plug-in ends and rotary shock receivers can be avoided. By the solution according to the invention will therefore also damage the Inserted ends and avoided on the rotary impact receiver.

Der im Einsteckende vorgesehene Schlagkolben besteht vorzugsweise aus einem zylindrischen Teil und einem das Verbindungsstück oder eine darin vorgesehene Schulter teilweise überragenden Flansch, welcher verhindert, dass der Schlagkolben durch die Rückwirkungen vom Bohrgestänge axial zurück läuft.The percussion piston provided in the insertion end exists preferably from a cylindrical part and a Connector or a shoulder provided therein partially protruding flange, which prevents the Percussion piston axially due to the repercussions of the drill pipe running back.

Die Erfindung ist auch bei sogenannten Doppelschlagwerken vorteilhaft einsetzbar. Der Schlagkolben und ein mit dem Schlagkolben zusammen wirkender Schlaghammer der Schlagvorrichtung weisen dazu axial verlaufende Bohrungen auf, in denen von einer weiteren Drehvorrichtung und/oder einer weiteren Schlagvorrichtung angetriebene Antriebsmittel für ein zweites, vorzugsweise innerhalb des ersten Bohrgestänges angeordnetes Bohrgestänge vorgesehen sind.The invention is also in so-called double striking mechanisms can be used advantageously. The percussion piston and one with the Percussion piston co-operating percussion hammer of the striking device have axially extending bores, in those of a further rotating device and / or one further impact device driven drive means for a second, preferably within the first drill pipe arranged drill pipe are provided.

In den genannten Bohrungen des Schlagkolbens und des Schlaghammers ist vorzugsweise ein mit dem zweiten Bohrgestänge direkt oder indirekt verbindbares inneres Einsteckende, vorzugsweise eine Drehschlagwelle, vorgesehen, das drehend und/oder schlagend beaufschlagt ist oder das drehend beaufschlagt und mit einer axial verlaufenden Bohrung versehen ist, innerhalb der ein schlagend beaufschlagter innerer Schlagkolben angeordnet ist. Durch diese vorzugsweise gegenseitige Entkopplung des inneren Einsteckendes und des inneren Schlagkolbens resultiert wiederum ein reduzierte Belastung dieser Vorrichtungsteile bei gegebenenfalls gleichzeitig erhöhter Bohrleistung.In the mentioned bores of the percussion piston and the percussion hammer is preferably one with the second drill string directly or indirectly connectable inner insertion end, preferably a rotary shock shaft, provided that rotating and / or striking or rotating acted upon and with an axially extending bore is provided, within which a striking inner percussion piston is arranged. By this preferably mutual decoupling of the inner insertion end and the inner percussion piston again results in a reduced Load these parts of the device if necessary at the same time increased drilling capacity.

Die erfindungsgemässe Drehschlagvorrichtung wird nachstehend anhand von in Zeichnungen dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
eine im Schnitt gezeigte erfindungsgemässe Drehschlagvorrichtung, die zum Antrieb eines Bohrgestänges dient und
Fig. 2
eine im Schnitt gezeigte erfindungsgemässe Drehschlagvorrichtung, die zum Antrieb eines inneren und eines äusseren Bohrgestänges vorgesehen ist.
The rotary impact device according to the invention is explained in more detail below with reference to exemplary embodiments shown in the drawings. Show it:
Fig. 1
an inventive rotary impact device shown in section, which is used to drive a drill pipe and
Fig. 2
a rotary impact device according to the invention shown in section, which is provided for driving an inner and an outer drill pipe.

Fig. 1 zeigt eine erfindungsgemässe, zum Antrieb eines Bohrgestänges dienende Drehschlagvorrichtung 1 mit einem Zylindergehäuse bzw. einem Vorrichtungskörper 8, in dem eine mit einem Einsteckende 3 gekoppelte Drehvorrichtung 5 und ein Schlagwerk bzw. eine Schlagvorrichtung 6 vorgesehen sind, die mit einem in einer axial verlaufenden Bohrung 37 des Einsteckendes 3 verschiebbar gelagerten Schlagkolben 4 zusammenwirkt.Fig. 1 shows an inventive, for driving a Rotary impact device 1 with a drill pipe Cylinder housing or a device body 8, in which a with an insertion end 3 coupled rotating device 5 and Percussion mechanism or an impact device 6 are provided, the with an axially extending bore 37 of the Insertable 3 displaceable percussion piston 4 cooperates.

Das Einsteckende 3, das zur Übertragung eines von der Drehvorrichtung 5 erzeugten Drehmomentes auf einen mit dem Bohrgestänge verbindbaren Drehschlagempfänger 2 dient, weist zwei voneinander beabstandete, zylinderförmige Abschnitte 31, 32 auf, die im Vorrichtungskörper 8 in entsprechenden Bereichen 81, 83 gelagert bzw. von Lagerschalen umfasst sind.The insertion end 3, which is used to transmit one of the Turning device 5 generated torque to a Drill pipe connectable rotary impact receiver 2 is used, has two spaced-apart, cylindrical sections 31, 32 on that in the device body 8 in corresponding Areas 81, 83 are supported or are encased by bearing shells.

Zwischen den genannten zylinderförmigen Abschnitten 31, 32 weist das Einsteckende 3 eine Verzahnung 35 auf, welche über ein Zahngetriebe 52, 53 mit einer vorzugsweise von einem hydraulischen oder pneumatischen Drehantrieb angetriebenen Antriebswelle 51 der Drehvorrichtung 5 gekoppelt ist.Between said cylindrical sections 31, 32 the insertion end 3 has a toothing 35, which over a toothed gear 52, 53 with a preferably one hydraulic or pneumatic rotary drive Drive shaft 51 of the rotating device 5 is coupled.

Zwischen dem im Vorrichtungskörper 8 gelagerten zweiten zylinderförmigen Abschnitt 32 und der Verzahnung 35 weist das Einsteckende 3 eine Ringnut 36 auf, in die hinein ein mit dem Vorrichtungskörper 8 verbundener Haltering 82 hinein ragt, der Verschiebungen des Einsteckendes 3 längs dessen Achse 100 eng begrenzt und vorzugsweise mit einem Dämpfungselement 84 verbunden ist, welches Vibrationen und Schläge dämpft. Between the second one stored in the device body 8 cylindrical portion 32 and the toothing 35 has that Inserting end 3 an annular groove 36, into which one with Device body 8 connected retaining ring 82 protrudes into it, the displacements of the insertion end 3 along its axis 100 narrowly limited and preferably with a damping element 84 which dampens vibrations and shocks.

Das dem Drehschlagempfänger 2 zugewandte Ende des Einsteckendes 3, das aus dem Vorrichtungskörper 8 hinausmündet, weist ein Verbindungsstück 33 mit einem Aussengewinde 38 auf, welches in eine mit einem Innengewinde 22 versehene Gewindebohrung 21 im Drehschlagempfänger 2 eingedreht ist.The end of the insertion end facing the rotary impact receiver 2 3, which opens out of the device body 8, has a connecting piece 33 with an external thread 38, which is provided with an internal thread 22 Threaded hole 21 is screwed into the rotary impact receiver 2.

Der Schlagkolben 4 weist ein der Schlagvorrichtung 6 zugewandtes und von einem ebenfalls kolbenförmigen Schlaghammer 61 beaufschlagtes erstes Endstück 42, einen zylindrischen, in der Bohrung 37 des Einsteckendes 3 gelagerten Körper 41 sowie ein zweites Endstück 43 auf, welches in Form eines Flansches das Verbindungsstück 33 innerhalb der im Drehschlagempfänger 2 vorgesehenen Gewindebohrung 21 frontseitig überlappt und vorzugsweise zwischen Verbindungsstück 33 und Drehschlagempfänger 2 fest gehalten ist. Von der Schlagvorrichtung 6 bzw. dem Schlaghammer 61 abgegebene Schläge werden daher mittels dem Schlagkolben 4 direkt auf den Drehschlagempfänger 2 übertragen.The percussion piston 4 has one facing the percussion device 6 and a piston-shaped hammer 61 acted upon first end piece 42, a cylindrical, in the bore 37 of the insertion end 3 mounted body 41 and a second end piece 43, which is in the form of a flange the connector 33 within the rotary impact receiver 2 provided threaded hole 21 overlaps on the front and preferably between connector 33 and rotary impact receiver 2 is held firmly. From the impact device 6 or the blows given to the hammer 61 are therefore by means of the percussion piston 4 directly on the rotary impact receiver 2 transferred.

Das Einsteckende 3 weist anschliessend an das mit dem Drehschlagempfänger 2 verbundene Verbindungsstück 33 einen konisch verlaufenden Flansch 34 auf, der in einer weiteren Ausgestaltung der Erfindung als Anschlag für den Drehschlagempfänger 2 dienen kann.The insertion end 3 then points to the Rotary impact receiver 2 connected connector 33 a conical flange 34, which in another Embodiment of the invention as a stop for the rotary impact receiver 2 can serve.

In einer vorzugsweisen Ausgestaltung ist der Flansch 34 ringförmig ausgestaltet und einseitig an ein das Einsteckende 3 ausgangsseitig umfassendes Teil 85 des Vorrichtungskörpers 8 anschliessend angeordnet, so dass Rückwirkungen vom Bohrgestänge auf das Teil 85 übertragen werden. Das Teil 85 ist in diesem Fall über ein vorzugsweise hydraulisches Dämpfungselement mit dem Vorrichtungskörper 8 verbunden, so dass das Einsteckende 3 bei Vibrationen und Rückschlägen des Bohrgestänges gedämpft mitschwingen kann. Alternativ kann die Dämpfung des Einsteckendes 3, wie in Fig. 1 gezeigt, auch mittels eines Halteelements bzw. eines mit dem Vorrichtungskörper 8 verbundenen Halterings 82 erfolgen, der mit einem Dämpfungselement 84 verbunden ist, welches Vibrationen und Schläge dämpft. In a preferred embodiment, the flange 34 designed in a ring shape and on one side at the insertion end 3 part 85 of the device body comprising on the output side 8 then arranged so that repercussions from Drill rods are transferred to part 85. Part 85 in this case is preferably a hydraulic one Damping element connected to the device body 8, so that the insertion end 3 in the event of vibrations and setbacks of the Can vibrate the drill pipe damped. Alternatively, the Damping the insertion end 3, as shown in Fig. 1, too by means of a holding element or one with the device body 8 connected retaining rings 82 take place with a Damping element 84 is connected, which vibrations and Dampens blows.

Auf das Einsteckende 3 indirekt übertragene Schlagenergien verursachen daher keine Materialverformungen beispielsweise am Verbindungsstück 33 oder dem darauf vorgesehenen Aussengewinde 38, sondern werden im Dämpfungselement 84 absorbiert. Das Einsteckende 3 und insbesondere das mit dem Drehschlagempfänger 2 verbundene Verbindungsstück 33 wird daher nicht nur von der Schlagvorrichtung 6 direkt abgegebenen Schlagenergie, die dem Drehschlagempfänger 2 über den Schlagkolben 4 zugeführt wird, sondern auch von der über das Bohrgestänge und den Drehschlagempfänger 2 an das Einsteckende 3 indirekt übertragenen Schlagenergie entkoppelt, so dass frühzeitige Materialermüdungen an der Verbindungsstelle zwischen Einsteckende 3 und Drehschlagempfänger 2 vermieden werden.Impact energies indirectly transmitted to the insertion end 3 therefore do not cause material deformation, for example on the connector 33 or the external thread provided thereon 38, but are absorbed in the damping element 84. The insertion end 3 and in particular that with the rotary impact receiver 2 connected connector 33 is therefore not impact energy directly delivered by the striking device 6, the rotary impact receiver 2 via the percussion piston 4 is supplied, but also by the over the drill pipe and the rotary impact receiver 2 to the insertion end 3 indirectly transmitted impact energy decoupled so that early Material fatigue at the junction between Inserting end 3 and rotary impact receiver 2 can be avoided.

Der in Fig. 1 beispielsweise gezeigte Drehschlagempfänger 2 ist mittels eines Aussengewindes 25 mit einem äusseren Bohrgestänge und mittels einer axial vorgesehenen Gewindebohrung 26 mit einem inneren Bohrgestänge verbindbar. Durch die Gewindebohrung 26 und einen daran anschliessenden, nach aussen geführten Kanal 24 ist ferner ein Spülmittel durchleitbar. Möglich ist selbstverständlich auch der direkte Anschluss des Einsteckendes 3 an das Bohrgestänge, ohne Zwischenschaltung des als Adapter dienenden Drehschlagempfängers 2.The rotary impact receiver 2 shown for example in FIG. 1 is by means of an external thread 25 with an external Drill pipe and by means of an axially provided threaded hole 26 connectable to an inner drill pipe. By the threaded bore 26 and an adjoining, after outside channel 24 is also a detergent passable. Of course, direct is also possible Connection of the insertion end 3 to the drill pipe, without Interposition of the rotary impact receiver serving as an adapter 2nd

Fig. 2 zeigt eine vorzugsweise Ausgestaltung der Drehschlagvorrichtung 1, die zum getrennten Antrieb eines inneren und eines äusseren Bohrgestänges vorgesehen ist und dazu einen hohlzylinderförmigen Schlagkolben 4 und einen mit dem Schlagkolben 4 zusammen wirkenden hohlzylinderförmigen Schlaghammer 61 aufweist, die mit axial verlaufenden Bohrungen 44; 62 versehen sind. In diesen Bohrungen 44; 62 des Schlagkolbens 4 und des Schlaghammers 61 sind Antriebsmittel 30, 40 für das zweite Bohrgestänge vorgesehen, die von einer zweiten Drehvorrichtung 50 und einer zweiten Schlagvorrichtung 60 angetrieben und einem dazu mit einem Gewinde 201 versehenen inneren Drehschlagempfänger 200 verbunden sind. Das innere Bohrgestänge kann auch direkt mit den Antriebsmitteln 30, 40 verbunden sein. Im inneren und äusseren Bohrgestänge, gegebenenfalls auch in den als Adapter dienenden Drehschlagempfängern 2, 200 sind vorzugsweise Kanäle vorgesehen, die der Zu- und Abfuhr eines Spülmediums oder der Durchführung elektrischer Leitungen dienen.Fig. 2 shows a preferred embodiment of the rotary impact device 1, which is used to separately drive an inner and an outer drill pipe is provided and one hollow cylindrical percussion piston 4 and one with the Percussion piston 4 interacting hollow cylindrical Percussion hammer 61 having axially extending Bores 44; 62 are provided. In these holes 44; 62 of the percussion piston 4 and the percussion hammer 61 Drive means 30, 40 provided for the second drill pipe, that of a second rotating device 50 and a second Impact device 60 driven and one with one Thread 201 provided internal rotary impact receiver 200 are connected. The inner drill pipe can also be used directly be connected to the drive means 30, 40. Inside and outer drill pipe, possibly also in the as an adapter serving rotary impact receivers 2, 200 are preferred Channels provided that the supply and discharge of a flushing medium or the implementation of electrical cables.

In der in Fig. 2 gezeigten Ausgestaltung weist die Drehschlagvorrichtung 1 in den Bohrungen 44; 62 des Schlagkolbens 4 und des Schlaghammers 61 ein mit dem inneren Bohrgestänge oder einem inneren Drehschlagempfänger 200 verbundenen inneres Einsteckende 30 auf, das mit einer axial verlaufenden Bohrung versehen ist, innerhalb der ein innerer Schlagkolben 40 angeordnet ist.In the embodiment shown in FIG. 2, the Rotary impact device 1 in the bores 44; 62 of Percussion piston 4 and the percussion hammer 61 one with the inner Drill pipe or an internal rotary impact receiver 200 connected inner insertion end 30, which with an axial extending bore is provided within which an inner Percussion piston 40 is arranged.

Das innere Einsteckende 30 wird von der zweiten Drehvorrichtung 50 angetrieben, während der innere Schlagkolben 40 unabhängig davon von der zweiten Schlagvorrichtung 60 beaufschlagt ist. Die Funktionsweise des inneren Einsteckendes 30 und des inneren Schlagkolbens 40 sowie der zugehörigen Antriebsvorrichtungen 50, 60 entspricht daher der Funktionsweise der entsprechenden äusseren Vorrichtungsteile 3, 4, 5 und 6. Das innere Einsteckende 30 ist daher ebenfalls von den Schlagenergien weitgehend entkoppelt, die von der zweiten Schlagvorrichtung 60 über den inneren Schlagkolben 40 auf das innere Bohrgestänge übertragen werden. Frühzeitige Materialermüdungen an kritischen Stellen werden daher auch bei diesen inneren Vorrichtungsteilen 30 und 40 sowie dem inneren Drehschlagempfänger 200 bzw. dem Bohrgestänge vermieden.The inner insertion end 30 is from the second rotating device 50 powered while the inner percussion piston 40 independently of the second impact device 60 is acted upon. The functioning of the inner Inserting 30 and the inner percussion piston 40 and the associated drive devices 50, 60 therefore corresponds to Functionality of the corresponding outer device parts 3, 4, 5 and 6. The inner insertion end 30 is therefore also largely decoupled from the impact energies by the second impact device 60 via the internal impact piston 40 be transferred to the inner drill pipe. Early Material fatigue at critical points is therefore also in these inner device parts 30 and 40 and the inner rotary impact receiver 200 or the drill pipe avoided.

Die in den Bohrungen 44; 62 des Schlagkolbens 4 und des Schlaghammers 61 vorgesehenen Antriebsmittel 30, 40 können selbstverständlich auch anders ausgestaltet sein und betrieben werden. Möglich ist die Verwendung nur einer inneren Welle, die drehend, schlagend oder drehschlagend beaufschlagt ist.The in the bores 44; 62 of the percussion piston 4 and Impact hammer 61 provided drive means 30, 40 can of course, be designed and operated differently become. The use of only one inner is possible Shaft that is rotating, striking or rotating striking is.

Aus Fig. 2 ist ferner eine weitere vorzugsweise Ausgestaltung des dem Drehschlagempfänger 2 zugewandten zweiten Endstücks 43 des Schlagkolbens 4 ersichtlich.2 is a further preferred embodiment the second end piece facing the rotary impact receiver 2 43 of the percussion piston 4 can be seen.

Das Endstück 43 weist die Form eines Flanschs auf, der teilweise in das Einsteckende 3 versenkt ist und einseitig an einer in der axial verlaufenden Bohrung 37 vorgesehenen Schulter 39 anliegen kann, die das Rücklaufen des Schlagkolbens 4 verhindert. Das Endstück 43 ist auf der anderen Seite in eine im Drehschlagempfänger 2 vorgesehene, dem Endstück 43 angepasste Vertiefung 24 eingesenkt. Dadurch können andere Zonen des Drehschlagempfängers 2 entlastet werden, so dass dortige Materialschäden vermieden werden.The end piece 43 has the shape of a flange that is partially sunk into the insertion end 3 and on one side one provided in the axially extending bore 37 Shoulder 39 may apply, which is the return of the Percussion piston 4 prevented. The end piece 43 is on the the other side into a provided in the rotary impact receiver 2, recess 24 adapted to end piece 43. Thereby can relieve other zones of the rotary impact receiver 2 so that material damage there is avoided.

Insbesondere bei kleineren Bohrgestängen kann zwischen dem Endstück 43 und der Schulter 39, wie in Fig. 2 gezeigt, Spiel vorhanden sein.Especially in the case of smaller drill pipes, the Tail 43 and shoulder 39, as shown in FIG. 2, play to be available.

Die erfindungsgemässe Drehschlagvorrichtung und insbesondere daran anschliessbare Bohrgestänge wurden oben nur in Details beschrieben, die für das Verständnis der Erfindung nützlich sind. Dem Fachmann sind natürlich Merkmale vorzugsweiser Ausgestaltungen von gattungsgemässen Drehschlagvorrichtungen und Bohrgestängen bekannt, die im Zusammenhang mit dem vorliegenden Erfindungsgegenstand problemlos anwendbar sind. Anpassungen und Änderungen insbesondere der Antriebsvorrichtungen sind leicht möglich.The rotary impact device according to the invention and in particular the drill rods that can be connected to it were only in details above described that are useful for understanding the invention are. Features are of course preferred to the person skilled in the art Refinements of generic rotary impact devices and drill pipes known in connection with the present subject of the invention are easily applicable. Adjustments and changes in particular to the drive devices are easily possible.

Claims (10)

Drehschlagvorrichtung (1) für ein Bohrgestänge mit einer Schlagvorrichtung (6) und einem in einem Vorrichtungskörper (8) drehbar gelagerten Einsteckende (3), das mit einer Drehvorrichtung (5) gekoppelt und mittels eines aus dem Vorrichtungskörper (8) hinaustretenden Verbindungsstücks (33) über einen Drehschlagempfänger (2) mit dem Bohrgestänge verbindbar ist, dadurch gekennzeichnet, dass das Einsteckende (3) eine axial verlaufende Bohrung (37) aufweist, in der ein Schlagkolben (4) verschiebbar gelagert ist, dessen erstes Endstück (42) der Schlagvorrichtung (6) und dessen zweites Endstück (43) dem Drehschlagempfänger (2) zugewandt ist, so dass von der Schlagvorrichtung (6) abgegebene Schläge mittels des Schlagkolbens (4) direkt auf den Drehschlagempfänger (2) übertragbar sind.Rotary impact device (1) for a drill pipe with a percussion device (6) and an insertion end (3) rotatably mounted in a device body (8), which is coupled to a rotary device (5) and by means of a connecting piece (33) emerging from the device body (8) Can be connected to the drill pipe via a rotary impact receiver (2), characterized in that the insertion end (3) has an axially extending bore (37) in which a percussion piston (4) is slidably mounted, the first end piece (42) of the impact device ( 6) and its second end piece (43) faces the rotary impact receiver (2), so that impacts emitted by the impact device (6) can be transmitted directly to the rotary impact receiver (2) by means of the impact piston (4). Drehschlagvorrichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass das Einsteckende (3) formschlüssig mit der Drehvorrichtung (5) koppelbare Elemente (35) aufweist.Rotary impact device (1) according to Claim 1, characterized in that the insertion end (3) has elements (35) which can be positively coupled to the rotary device (5). Drehschlagvorrichtung (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Drehvorrichtung (5) einen pneumatisch oder hydraulisch arbeitenden Drehantrieb aufweist.Rotary impact device (1) according to claim 2, characterized in that the rotary device (5) has a pneumatically or hydraulically operating rotary drive. Drehschlagvorrichtung (1) nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass der Vorrichtungskörper (8) wenigstens zwei voneinander beabstandete Bereiche (81, 83) aufweist, in denen das Einsteckende (3) gelagert ist.Rotary impact device (1) according to claim 1, 2 or 3, characterized in that the device body (8) has at least two spaced apart areas (81, 83) in which the insertion end (3) is mounted. Drehschlagvorrichtung (1) nach Anspruch 3, dadurch gekennzeichnet, dass das Einsteckende (3) vorzugsweise zwischen den voneinander beabstandeten Bereichen (81, 83) eine Haltefläche (36) aufweist, die zu einem mit dem Vorrichtungskörper (8) verbundenen Halteelement (82) korrespondiert. Rotary impact device (1) according to Claim 3, characterized in that the insertion end (3) preferably has a holding surface (36) between the spaced apart areas (81, 83), which corresponds to a holding element (82) connected to the device body (8) . Drehschlagvorrichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass der Haltering (82) mit einem im Vorrichtungskörper (8) angeordneten, vorzugsweise hydraulischen Dämpfungselement (84) verbunden ist, durch das Schwingungen des Einsteckendes (3) gedämpft werden.Rotary impact device (1) according to claim 1, characterized in that the retaining ring (82) is connected to a preferably hydraulic damping element (84) arranged in the device body (8), by means of which vibrations of the insertion end (3) are damped. Drehschlagvorrichtung (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das zweite Endstück (43) des aus einem zylindrischen Teil (41) bestehenden Schlagkolbens (4) a) ein Flansch ist, der einseitig am Verbindungsstück (33) oder einer darin vorgesehenen Schulter (39) anliegt und/oder b) in eine im Drehschlagempfänger (2) vorgesehene, dem Endstück (43) angepasste Vertiefung (24) einsenkbar ist. Rotary impact device (1) according to one of Claims 1 to 6, characterized in that the second end piece (43) of the percussion piston (4) consisting of a cylindrical part (41) a) is a flange which rests on one side on the connecting piece (33) or a shoulder (39) provided therein and / or b) can be countersunk in a recess (24) provided in the rotary impact receiver (2) and adapted to the end piece (43). Drehschlagvorrichtung (1) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Schlagkolben (4) und ein mit dem Schlagkolben (4) zusammen wirkender Schlaghammer (61) der Schlagvorrichtung (6) axial verlaufende Bohrungen (44; 62) aufweisen.Rotary impact device (1) according to one of Claims 1 to 7, characterized in that the percussion piston (4) and a percussion hammer (61) of the percussion device (6) which cooperates with the percussion piston (4) have bores (44; 62) running axially. Drehschlagvorrichtung (1) nach Anspruch 8, dadurch gekennzeichnet, dass in den Bohrungen (44; 62) des Schlagkolbens (4) und des Schlaghammers (61) Antriebsmittel (30 bzw. 30, 40) für ein zweites, vorzugsweise innerhalb des ersten Bohrgestänges (2) angeordnetes Bohrgestänge (200) vorgesehen sind, die von einer zweiten Drehvorrichtung (50) und/oder einer zweiten Schlagvorrichtung (60) angetrieben sind.Rotary impact device (1) according to claim 8, characterized in that in the bores (44; 62) of the percussion piston (4) and the percussion hammer (61) drive means (30 or 30, 40) for a second, preferably within the first drill pipe ( 2) arranged drill rods (200) are provided, which are driven by a second rotating device (50) and / or a second impact device (60). Drehschlagvorrichtung (1) nach Anspruch 9, dadurch gekennzeichnet, dass in den Bohrungen (44; 62) des Schlagkolbens (4) und des Schlaghammers (61) ein mit dem zweiten Bohrgestänge (200) verbindbares inneres Einsteckende (30) vorgesehen ist, das drehend und / oder schlagend beaufschlagt ist oder das drehend beaufschlagt und mit einer axial verlaufenden Bohrung versehen ist, innerhalb der ein schlagend beaufschlagter innerer Schlagkolben (40) angeordnet ist.Rotary impact device (1) according to claim 9, characterized in that in the bores (44; 62) of the percussion piston (4) and the percussion hammer (61) is provided an inner insertion end (30) which can be connected to the second drill rod (200) and which rotates and / or is subjected to impact or which is subjected to rotation and is provided with an axially extending bore, within which an internal impact piston (40) which is impacted is arranged.
EP00112146A 2000-06-06 2000-06-06 Rotary percussion device for a drill string Expired - Lifetime EP1162037B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
PT00112146T PT1162037E (en) 2000-06-06 2000-06-06 ROTATION AND PERCUSSION DEVICE FOR A PROBE
AT00112146T ATE301533T1 (en) 2000-06-06 2000-06-06 ROTARY IMPACT DEVICE FOR A DRILL PIPE
DK00112146T DK1162037T3 (en) 2000-06-06 2000-06-06 Rotary impact device for a drill string
ES00112146T ES2246771T3 (en) 2000-06-06 2000-06-06 PERCUTOR ROTARY DEVICE FOR A DRILL VASTAGO.
EP00112146A EP1162037B1 (en) 2000-06-06 2000-06-06 Rotary percussion device for a drill string
DE50010923T DE50010923D1 (en) 2000-06-06 2000-06-06 Rotary impact device for a drill pipe
US10/276,433 US6843329B2 (en) 2000-06-06 2001-06-05 Rotary percussion device for a drill column
CA002410400A CA2410400A1 (en) 2000-06-06 2001-06-05 Rotary percussion device for a drill column
PCT/CH2001/000344 WO2001094079A1 (en) 2000-06-06 2001-06-05 Rotary percussion device for a drill column
AU2001260005A AU2001260005A1 (en) 2000-06-06 2001-06-05 Rotary percussion device for a drill column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00112146A EP1162037B1 (en) 2000-06-06 2000-06-06 Rotary percussion device for a drill string

Publications (2)

Publication Number Publication Date
EP1162037A1 true EP1162037A1 (en) 2001-12-12
EP1162037B1 EP1162037B1 (en) 2005-08-10

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EP00112146A Expired - Lifetime EP1162037B1 (en) 2000-06-06 2000-06-06 Rotary percussion device for a drill string

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US (1) US6843329B2 (en)
EP (1) EP1162037B1 (en)
AT (1) ATE301533T1 (en)
AU (1) AU2001260005A1 (en)
CA (1) CA2410400A1 (en)
DE (1) DE50010923D1 (en)
DK (1) DK1162037T3 (en)
ES (1) ES2246771T3 (en)
PT (1) PT1162037E (en)
WO (1) WO2001094079A1 (en)

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TWI510335B (en) * 2014-02-21 2015-12-01 wei lin Tu Water Feeding Connecter for Drill

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DE3714884A1 (en) * 1986-05-09 1987-11-12 Tampella Oy Ab ARRANGEMENT FOR A DRILLING MACHINE FOR STORING A ROTATIONAL BODY

Also Published As

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EP1162037B1 (en) 2005-08-10
ATE301533T1 (en) 2005-08-15
PT1162037E (en) 2005-10-31
CA2410400A1 (en) 2002-11-21
WO2001094079A1 (en) 2001-12-13
ES2246771T3 (en) 2006-03-01
AU2001260005A1 (en) 2001-12-17
US20040099425A1 (en) 2004-05-27
DK1162037T3 (en) 2005-12-12
DE50010923D1 (en) 2005-09-15
US6843329B2 (en) 2005-01-18

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