EP0510416B1 - Mécanisme à coup pour colonne de forage - Google Patents

Mécanisme à coup pour colonne de forage Download PDF

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Publication number
EP0510416B1
EP0510416B1 EP92105874A EP92105874A EP0510416B1 EP 0510416 B1 EP0510416 B1 EP 0510416B1 EP 92105874 A EP92105874 A EP 92105874A EP 92105874 A EP92105874 A EP 92105874A EP 0510416 B1 EP0510416 B1 EP 0510416B1
Authority
EP
European Patent Office
Prior art keywords
percussion
drill string
percussion piston
piston
drill pipe
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
EP92105874A
Other languages
German (de)
English (en)
Other versions
EP0510416A2 (fr
EP0510416A3 (en
Inventor
Robert-Jan Dr.-Ing. Bartels
Hans-Dieter Ing. Piotrowski
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.)
Construction Tools GmbH
Original Assignee
Krupp Bautechnik 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 Krupp Bautechnik GmbH filed Critical Krupp Bautechnik GmbH
Publication of EP0510416A2 publication Critical patent/EP0510416A2/fr
Publication of EP0510416A3 publication Critical patent/EP0510416A3/de
Application granted granted Critical
Publication of EP0510416B1 publication Critical patent/EP0510416B1/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
    • E21B1/00—Percussion drilling
    • E21B1/38—Hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
    • 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
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/171—Percussive pulling action of tools for extraction of elements

Definitions

  • the invention relates to a percussion mechanism for a drill pipe, in particular for drilling rock and anchor holes, with a percussion piston guided on a housing, which is moved back and forth under the action of a pressurized hydraulic medium.
  • a drilling device for so-called double-head drilling is known, the drill string of which consists of a tubular outer rod and an inner rod running in it. While the outer linkage only has a rotary drive, the inner linkage is equipped with a rotary impact drive.
  • the known drilling device can be operated so that the outer linkage - in contrast to the inner linkage also subjected to impact energy - is only rotated or that the blows of the inner linkage are also transmitted to the outer linkage via an annular collar. It is also possible to work with only rotating outer and inner rods by switching off the striking mechanism. Depending on the working conditions, there may be considerable casing friction and / or (for example due to material falling in the borehole) resistances, which make it difficult or even impossible to drill and pull the outer rod. To support the drawing process, the design of a striking mechanism with an additional piston has already been proposed with DE-A1-29 18 631; if necessary, this serves to hold the counter surface of the tool interacting with the percussion piston in the direction of the percussion piston. With the striking mechanism designed in this way - which is part of a drilling device - the resistances opposing the drawing process cannot be overcome in all cases.
  • the document US-A-3 833 072 describes a percussion mechanism for a drill pipe, the percussion piston of which is moved to and fro using both a pneumatic and a hydraulic drive means and - due to the use of an internal tube section connected to the housing - against this The drill pipe is shielded.
  • the known device is otherwise designed such that the percussion piston completely accommodated within the housing strikes the housing and drives the drill pipe in the direction of advance via the latter.
  • the invention has for its object to develop a hydraulically operated hammer mechanism for a drill pipe, the use of which can be adapted to different working conditions with reasonable effort.
  • the hammer mechanism should in particular be such that the problematic drilling work described above can still be carried out economically.
  • the object is achieved by a striking mechanism with the features of claim 1.
  • the basic idea of the invention is that the housing supporting the percussion piston is open on both sides and the percussion piston itself is designed as a hollow piston, in the through bore of which the drill pipe projects at least with part of its total cross section; in the normal case there will be an arrangement in which the drill pipe is passed through the hollow piston at least with part of its total cross section. If the drill pipe - seen in cross section - consists only of a single pipe, the mutual assignment can be made such that the drill pipe protrudes into the through hole or is normally passed through it, the percussion piston directly or indirectly (for example via a drill pipe attached to the drill pipe Impact piece) acts in the direction of impact on the drill pipe.
  • the mutual assignment can be such that either only the inner linkage or the outer and inner linkage projects at least into the percussion piston driving the outer linkage or is guided through it.
  • the drill pipe possibly the outer pipe of a double pipe
  • the drill pipe has a counter surface that can be acted upon by the percussion piston and can be handled in a manner that enables the striking mechanism to be moved with the resultant reversal of the striking direction; the percussion piston only protrudes from the housing on the side facing it.
  • An advantageous, in the normal case already existing configuration of the drill pipe, which allows or simplifies the expansion of the striking mechanism, consists in that the drill pipe is divided into detachable longitudinal sections. By detaching these longitudinal sections from one another in the area of the striking mechanism, the striking mechanism can be pulled off from the drill pipe enclosed by it and implemented transversely to its longitudinal axis by rotating about an (imaginary) axis.
  • the invention thus makes it possible to use the hammer mechanism - depending on its coupling to the drill pipe - to influence the drill pipe in the direction of the drilling progress or in the direction of pull.
  • the diameter of the through hole must be dimensioned such that it is larger than the outside diameter of the drill pipe with sufficient play, taking into account the largest possible drill pipe deflection.
  • the distance between the percussion piston and the outer diameter mentioned will be at least a few millimeters given the size relationships mentioned here.
  • the percussion piston can be designed in such a way that its axial length is shorter than that of the housing (claim 2).
  • the trouble-free operation of the striking mechanism can at least be supported by the counter surface of the striking element in the direction of the striking piston is conically shaped and this has an adapted face (claim 3).
  • the configuration required for the implementation of the striking mechanism with respect to the drill pipe can be realized in a simple manner in that the counter surface is part of a ring which, detachably, is supported in the direction of impact on a stop surface of the drill pipe (claim 4).
  • the ring can in particular consist of several ring segments which can be screwed together.
  • Another useful design of the ring is characterized in that it has a plurality of ring segments which are connected to one another in an articulated manner and have a closure element, for example in the form of a tensioning screw.
  • the subject of the invention can not only be used to drive a normal drill pipe (in the form of a single pipe) in the direction of the drilling progress or in the opposite direction of pull.
  • the drilling device is equipped with a double rod (cf. DE-C1-35 03 893)
  • the striking mechanism can also be coupled to the associated outer rod (claim 5).
  • the percussion mechanism 1 which can be used to act on a drill pipe - generally designated 2 - has as main components a housing 3 and a percussion piston 4 movably guided therein. This is dimensioned shorter in the direction of its longitudinal axis 4a than the axial length of the housing 1 and provided with a through bore 4b with the bore diameter B. Spaces between the percussion piston 4 and the housing 3, which are not further designated, are represented by a control 5 with a feed line 6 hydraulic pressure medium and a return line 7 in connection. The control generates the periodic movement of the percussion piston 4 in the sense of the double arrow 8 in that it establishes a connection to a pressure medium source (not shown) or to the unpressurized return line 7 via the feed line 6.
  • the controller 5 and its interaction with the percussion piston 4 are not the subject of the invention and are known per se (cf. DE-C2-24 28 236): The only thing that is important in the context mentioned here is that the percussion piston 4 alternates a working movement in the direction of impact (ie downwards in FIG. 1) and in the return stroke direction (ie upwards in FIG. 1) with respect to the housing 3.
  • the design and mutual assignment of the components 3 and 4 is further selected so that the percussion piston 4 only protrudes from the housing 3 in the direction of impact (i.e. downwards in FIG. 1). Like the percussion piston, this is open on both sides - seen in its longitudinal direction. H. it has on its front side pointing in the direction of impact an outlet bore 3a adapted to the percussion piston and on its rear side a through bore 3b adapted to the drill pipe 2; the outer diameter of the drill pipe is designated G.
  • the ring 9 On the side facing the percussion piston 4, the ring 9 has a conically shaped counter surface 9a projecting towards it, which can be acted upon by the appropriately shaped percussion piston striking surface 4c during operation of the striking mechanism.
  • the formation of the surfaces 9a and 4c should contribute to the centering of the drill pipe 2 within the through hole 4b.
  • the distance denoted by s between the drill pipe 2 and the percussion piston 4 is several millimeters.
  • the drill pipe can be designed as a single pipe - indicated in FIG. 1 below by the reference number 12 - or as a double pipe, the tubular outer pipe (bottom left in FIG. 1) being designated 13; the inner rod running inside the outer rod is not shown for reasons of clarity.
  • the drill pipe consists of a plurality of longitudinal sections 12a, b and 13a, b; these are detachably fastened to one another via a coupling part 14 or 15 receiving the ring 9.
  • FIG. 3 A different application of the striking mechanism 1 is shown by way of example in FIG. 3. This is arranged with respect to a double linkage - consisting of a tubular outer linkage 13 and an inner linkage 15 running therein - in such a way that on the one hand the hollow percussion piston 4 can act on the rear side 13c of the outer linkage (in the illustration above) on the rear side 13c of the outer linkage and on the other hand the inner linkage 15 records.
  • the rotary drives 16 and 17 for the outer linkage 13 and inner linkage 15 are arranged behind or in front of the striking mechanism 1, as seen in the direction of the drilling progress (arrow 11).
  • the embodiment in question has the advantage that the striking mechanism 1 - due to the normally existing anyway Multi-part design of the outer and inner rods 13 or 15 in the longitudinal direction - can be installed and used later if necessary.
  • the described design of the percussion mechanism allows, after all, to drive the drill pipe (possibly also the outer pipe of a double pipe) with a suitable design in both directions of its longitudinal extension.

Landscapes

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

Claims (5)

  1. Mécanisme de frappe (1) pour un train de tiges de foration (2; 12 et 13), en particulier pour la foration de rocher et de trous d'ancrage, comportant un piston de frappe (4), se déplaçant en va-et-vient sous l'effet d'un moyen hydraulique sous pression et qui est guidé dans un carter (3) ouvert des deux côtés dans la direction longitudinale du piston de frappe (4) et qui est réalisé avec un alésage traversant (4b), étant entendu que le train de tiges de foration (2; 12 ou 13) - qui présente une contre-surface (9a), formant une partie constitutive d'une pièce de frappe (9) et pouvant être frappée par le piston de frappe (4) - pénètre dans l'alésage traversant (4b) et étant entendu que le piston de frappe (4) ressort du carter (3) dans le sens longitudinal simplement du côté tourné vers la pièce de frappe (9) et que le mécanisme de frappe (1) est disposé de façon à pouvoir tourner autour d'un axe virtuel, perpendiculairement à l'axe longitudinal du train de tiges de foration (2; 12 et 13), de façon que le piston de frappe (4) agisse sur le train de tiges de foration (2; 12 ou 13) dans une direction opposée.
  2. Mécanisme de frappe suivant la revendication 1, caractérisé en ce que la longueur axiale du piston de frappe (4) a une dimension plus courte que celle du carter (3).
  3. Mécanisme de frappe suivant au moins l'une des revendications précédentes, caractérisé en ce que la contre-surface (9a), dans la direction du piston de frappe, a une forme conique, et que ce piston présente une surface de frappe (4c) ajustée à elle.
  4. Mécanisme de frappe suivant au moins l'une des revendications précédentes, caractérisé en ce que la contre-surface est une pièce constitutive d'une bague (9), qui, réalisée démontable, s'appuie, dans le sens de frappe, contre une surface de frappe (2a) du train de tiges de foration (2).
  5. Mécanisme de frappe suivant au moins l'une des revendications précédentes, pour un dispositif de foration comportant un double train de tiges, constitué d'un train de tiges extérieur et d'un train de tiges extérieur, se déplaçant à l'intérieur de ce dernier et de façon indépendante de lui, caractérisé en ce que le train de tiges de foration à entraîner est formé par le train de tiges extérieur (13).
EP92105874A 1991-04-24 1992-04-04 Mécanisme à coup pour colonne de forage Expired - Lifetime EP0510416B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4113323A DE4113323A1 (de) 1991-04-24 1991-04-24 Schlagwerk fuer ein bohrgestaenge
DE4113323 1991-04-24

Publications (3)

Publication Number Publication Date
EP0510416A2 EP0510416A2 (fr) 1992-10-28
EP0510416A3 EP0510416A3 (en) 1993-07-14
EP0510416B1 true EP0510416B1 (fr) 1997-01-15

Family

ID=6430233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105874A Expired - Lifetime EP0510416B1 (fr) 1991-04-24 1992-04-04 Mécanisme à coup pour colonne de forage

Country Status (5)

Country Link
US (1) US5259464A (fr)
EP (1) EP0510416B1 (fr)
JP (1) JPH05113092A (fr)
AT (1) ATE147830T1 (fr)
DE (2) DE4113323A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508003C2 (sv) * 1992-04-09 1998-08-10 Atlas Copco Rock Drills Ab Bergborrningsanordning med uppslagarenhet
CH686837A5 (de) * 1993-05-19 1996-07-15 Klemm Guenter Fluidbetaetigter Schlaghammer.
DE4343589C1 (de) * 1993-12-21 1995-04-27 Klemm Guenter Fluidbetätigter Schlaghammer
DE4404009C1 (de) * 1994-02-09 1995-04-27 Klemm Guenter Fluidbetätigter Schlaghammer
AT407919B (de) * 1998-01-19 2001-07-25 Boehler Pneumatik Internat Gmb Pneumatisch oder hydraulisch betreibbarer hammer und verwendung des hammers zum offenstellen oder zum verschliessen einer abstichöffnung eines metallurgischen gefässes
JP3817617B2 (ja) 1999-05-10 2006-09-06 新日本製鐵株式会社 さく孔装置
DE102004017940A1 (de) * 2004-04-14 2005-11-03 Robert Bosch Gmbh Schlagwerk für eine Handwerkzeugmaschine
SE535393C2 (sv) 2011-05-03 2012-07-24 Atlas Copco Rock Drills Ab En slagöverföringsdel, och en borrmaskin innefattande en sådan slagöverföringsdel
AT511810B1 (de) * 2011-09-27 2013-03-15 Tmt Bbg Res And Dev Gmbh Schlagwerk für eine hammereinrichtung und verfahren zum offenstellen einer abstichöffnung
FR3026041B1 (fr) * 2014-09-18 2017-03-31 Montabert Roger Appareil de perforation hydraulique destine a la perforation de trous de mine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB632935A (en) * 1945-11-14 1949-12-05 Sven Erik Albin Mattsson Percussion drilling machine

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US2802340A (en) * 1954-09-01 1957-08-13 Kearney James R Corp Ground rod driver
FR1197505A (fr) * 1958-07-01 1959-12-01 Ingersoll Rand Co Tige de fleuret pour perforatrice à percussion
SU554395A1 (ru) * 1970-08-13 1977-04-15 Всесоюзный научно-исследовательский и проектно-конструкторский институт добычи угля гидравлическим способом Гидроударный молот двойного действи
US3701386A (en) * 1970-12-11 1972-10-31 Dresser Ind Hydraulic drifter
US3833072A (en) * 1973-07-02 1974-09-03 Sanderson Cyclone Drill Co Drilling machine with driving tool for casing or pipe
GB1450972A (en) * 1974-06-11 1976-09-29 Klemm G Percussive tool
US4006665A (en) * 1974-06-11 1977-02-08 Fa. Ingenieur Gunter Klemm Spezialuntrnehmen Fur Bohrtechnik Percussion tool
SU607885A1 (ru) * 1976-04-24 1978-04-26 Институт Горного Дела Со Ан Ссср Пневматическое устройство ударного действи
US4232752A (en) * 1978-03-20 1980-11-11 Service Equipment Design Co., Inc. Method and apparatus for driving pipe
DE2816737C3 (de) * 1978-04-18 1981-03-19 Hans Philipp 3570 Stadtallendorf Walter Bohrhammer, Insbesondere Tieflochhammer
FI60153C (fi) * 1978-05-11 1981-12-10 Tampella Oy Ab Slaganordning
SU1178846A1 (ru) * 1982-03-01 1985-09-15 Институт Горного Дела Со Ан Ссср Зажимное приспособление к устройству дл погружени в грунт длинномерных стержневых элементов
DE3503893C1 (de) * 1985-02-06 1985-10-24 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Bohrvorrichtung
SU1416793A1 (ru) * 1986-06-04 1988-08-15 Тбилисское Отделение Всесоюзного Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им.С.Я.Жука Снар д дл ударно-канатного бурени
SE463193B (sv) * 1989-02-21 1990-10-22 Atlas Copco Mct Ab Anordning vid slaaende maskiner
US5174386A (en) * 1991-10-04 1992-12-29 The Stanley Works Ground rod driving apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB632935A (en) * 1945-11-14 1949-12-05 Sven Erik Albin Mattsson Percussion drilling machine

Also Published As

Publication number Publication date
US5259464A (en) 1993-11-09
ATE147830T1 (de) 1997-02-15
JPH05113092A (ja) 1993-05-07
DE4113323A1 (de) 1992-10-29
EP0510416A2 (fr) 1992-10-28
DE59207875D1 (de) 1997-02-27
EP0510416A3 (en) 1993-07-14

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