EP0235581B1 - Couplement, notamment pour une couronne de sondage diamantée avec fût de conduit et raccord de filet - Google Patents

Couplement, notamment pour une couronne de sondage diamantée avec fût de conduit et raccord de filet Download PDF

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Publication number
EP0235581B1
EP0235581B1 EP87101290A EP87101290A EP0235581B1 EP 0235581 B1 EP0235581 B1 EP 0235581B1 EP 87101290 A EP87101290 A EP 87101290A EP 87101290 A EP87101290 A EP 87101290A EP 0235581 B1 EP0235581 B1 EP 0235581B1
Authority
EP
European Patent Office
Prior art keywords
coupling
extension
projections
coupling member
coupling according
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
Application number
EP87101290A
Other languages
German (de)
English (en)
Other versions
EP0235581A1 (fr
Inventor
Bernd Geissler
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.)
Geissler and Kuper Diamantwe GmbH
Original Assignee
Geissler and Kuper Diamantwe 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
Priority claimed from DE19863603499 external-priority patent/DE3603499A1/de
Application filed by Geissler and Kuper Diamantwe GmbH filed Critical Geissler and Kuper Diamantwe GmbH
Priority to AT87101290T priority Critical patent/ATE47463T1/de
Publication of EP0235581A1 publication Critical patent/EP0235581A1/fr
Application granted granted Critical
Publication of EP0235581B1 publication Critical patent/EP0235581B1/fr
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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • E21B17/0465—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches characterised by radially inserted locking elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles

Definitions

  • the invention relates to a coupling for a linkage with power transmission, in particular for diamond core bits with a shaft tube and pipe thread connection.
  • diamond core bits are known. In principle, they consist of a tube with diamonds, hard metals or the like fastened in a crown-like manner on one end face. They are used in particular for drilling in rock and concrete. Depending on the application, they are operated in the wet or dry process. In both operating modes, a drill core is formed inside the tube or shaft, which can usually only be removed with difficulty. In the case of wet processes, the drill core can lead to the blocking of the coolant passed through the shaft and, in the worst case, to the destruction of the drill bit. This can occur, for example, if the drill core contains chipboard parts or foam in addition to concrete or the like.
  • Drills for diamond core bits are equipped with a threaded connection that is the same for many drilling approaches.
  • pipe thread connections of the same type adapted to the connection of the drilling machine are therefore also provided. This means that the shaft tubes provided with the drill bit on one end side are closed off on the other end side by the pipe thread connection. This means that a separate connection is required for each shaft tube. Although this connection is dimensioned for the passage of the coolant, it makes the removal of the drill core extremely difficult.
  • a diamond drill bit with a shaft tube and pipe thread connection is also known, in which each shaft tube is closed by an extension which forms a first coupling part for connection to a corresponding second coupling part of the pipe thread connection part (DE-GM 85 13 328).
  • This approach simplifies the removal of the core and makes handling the equipment easier.
  • the coupling parts can loosen or jam automatically as a result of the rotation in practical operation. In one case, the replacement is made difficult, in the other case, undesirable own movements occur during drilling.
  • the invention has for its object to provide an arrangement that enables easy coupling and uncoupling of the parts to be coupled without additional parts and does not undesirably affect the drilling process.
  • a coupling for linkages with power transmission in which a first coupling part is provided at one end with an extension which can be coupled to a second coupling part, in which mutually facing parts of extension and second coupling part lie flat against one another and in that for coupling in the mutually facing parts on the one hand projections and on the other hand recesses, grooves or recesses are provided which interlock when coupling, solved in that the mutually facing surfaces have clamping surfaces which are arranged perpendicular to the axis of the linkage, that the clamping surfaces are designed and dimensioned that they can be pressed flat against each other when coupling, and that a clamping ring (25) is provided to achieve the pressing action, which is rotatably mounted on the coupling part carrying the projections by means of a screw connection, an end face of the clamping ring forming one of the two clamping surfaces.
  • a diamond core bit 1 is shown with a shaft tube 2 and a pipe thread connection 3 in a perspective view.
  • the shaft tube 2 is provided on its one end face 4 in a crown-like manner with diamonds 5.
  • These diamonds 5 can be used as pieces and soldered or can be provided as an admixture to a hardening filling compound forming the end face of the shaft tube.
  • the front can be cut for the water be provided with passage.
  • the shaft tube can also be provided with openings 7.
  • the shaft tube 2 is provided with a shoulder 8, which forms a first coupling part. This approach is designed so that it allows the liquid to pass into the shaft tube 2.
  • a surface 9 is provided which is arranged essentially perpendicular to the axis of the shaft tube 2.
  • Grooves 12 are arranged diametrically opposite one another in the essentially cylindrical wall of the extension 8.
  • the pipe thread connection 3 is also provided with a substantially cylindrical extension part 35, which serves as a second coupling part. From this part 35 protrusions 11, for example bolts, protrude perpendicular to the axial direction of the shaft tube. These projections 11 act together with the grooves 12.
  • the cylindrical part 35 has an outer diameter and the extension 8 such that the part 35 can be pushed into the extension 8.
  • the grooves 12 and the projections 11 are dimensioned so that the projections can engage in the grooves 12 and are guided by them.
  • the outer wall of the part 35 and the inner wall are sealed against one another, for example by an O-ring 16 in an annular groove 17. In this way, the connection between the shaft tube 2 and the pipe thread connection 3 is sealed against the escape of the coolant.
  • the shaft tube 2 and the tube thread connection 3 practically form a first and a second coupling part, both of which can be easily coupled by the projections 11 and the grooves 12.
  • the coupling 2, 3 is such that the two parts 2, 3 are sealed at the same time when they are connected by the seal 16 arranged between them.
  • the grooves 12 in part 8 have an input part 12a which initially runs approximately in the axial direction of the shaft tube 2 and then subsequently a guide part 12b which runs obliquely or perpendicularly to the axial direction.
  • the direction of part 12b is selected such that the groove wall guides the projection 11 in the direction of a catch R when the parts 2, 3 to be coupled are rotated.
  • the detent R prevents the two parts 2, 3 thus assembled from being able to loosen again without the parts rotating again. If, for example, the pipe thread connection 3 is suspended in a fixed position, the shaft pipe 2, which is often very heavy, can be raised to the coupling and loosely hung in the coupling 3. In the same way, the loosely released coupling parts cannot fall apart, but are particularly lifted out of the connection and lowered.
  • the extension 8 and the part 35 are first inserted into one another in such a way that the protrusion (s) 11 engage in the groove parts 12a.
  • a clamping ring 25 can be displaced on the pipe thread connection part 3 in such a way that it pulls the projection 11 firmly into the catch R.
  • part 3 is provided with an external thread and ring 25 with an internal thread.
  • the mutually facing surfaces 9 of the neck 8 and 14 of the clamping ring 25 are arranged and dimensioned such that they are pressed firmly against one another and seal their connection.
  • Fig. 2 the sectional side view of a shaft tube 2 is shown with the welded in at one end 8 and the coupled pipe thread connector 3.
  • the seal 16 between the attachment 8 and the attachment part 35 is clearly visible.
  • a surface 22 for attaching spanners or the like is provided on the pipe thread attachment 3.
  • Fig. 3 shows the sectional side view of an intermediate connector as a coupling piece between a rod part, e.g. an extension part 39 for the shaft tube 2, and the pipe thread connection 3 or another tube part with a corresponding threaded bolt.
  • a rod part e.g. an extension part 39 for the shaft tube 2
  • the pipe thread connection 3 or another tube part with a corresponding threaded bolt.
  • the pipe thread connection part 3 shown in the upper part of FIG. 3 is a pipe part with an internal thread for receiving the correspondingly dimensioned pipe thread 6a of the threaded connection 18 of the drilling device 19.
  • the upper end of the pipe thread connection part 3 is designed as a hexagon 31 for handling.
  • the lower part 35 of part 3 has such an outer diameter that it can be pushed into the extension 8 just barely, but without play.
  • the part 35 is provided with a groove 17 for the O-rings 16 not inserted in FIG. 3.
  • the wall of the part 35 is dimensioned so thick that the projections or bolts 11 penetrate the part 35 and can protrude on each side sufficiently to be able to engage in the grooves 12 of the extension 8 without the strength of the part 35 being impermissibly small Assumes values.
  • the bolts 11 close with the outside of the extension 8 and are rounded off so that they cannot have a disruptive effect on the drilling operation.
  • the inner, clear width of part 35 is dimensioned such that sufficient fluid passage is ensured despite the penetrating bolt parts 11.
  • the lower end of the neck 8 is provided with a pipe threaded bolt 81, which is pre-shown in Fig. 3 finished part formed with hexagon 82 and welded to the neck 8.
  • the threaded bolt 81 is screwed into the extension tube 39 or the like provided with a corresponding thread and thus enables the simple connection of drill pipe.
  • a further seal is provided by the clamping ring 25, which can be rotated with its internal thread 32 on the external thread 33 of the pipe thread connection part 3 and presses with its end face 14 against the end face 9 of the attachment 8. During this rotation, the part 35 inserted and twisted into the extension 8 is first lifted back out of the extension 8 until the projections 11 are jammed in the catch R and the parts 3 and 8 are positively and non-positively connected to one another. By appropriate design of the abutting surfaces 9, 14, this connection is sealed at the same time. It has been shown that these parts 3, 8 can work trouble-free even if the clamping ring 25 should loosen.
  • the projections 11 are sufficient as a drive connection, the tolerances of the parts 8 and 35 preclude these parts from tilting, and the O-ring 16 in connection with the narrow gap between the parts 8, 35 is sufficient as a seal.
  • the coupling according to FIG. 3 therefore enables an almost problem-free drilling operation with easy interchangeability.
  • FIG. 4 shows a combination of the parts of the shaft tube 2 and the pipe thread connection part 3 combined with the drilling device 18/19 (visible parts) and the attachment 8 provided with a flange 10.
  • Pipe thread connection 3 and neck 3 are designed as a unit coupling for drill pipes 39 and shaft pipes 2 of different diameters and lengths.
  • the pipe thread connection part 3 is essentially provided as a coupling component which can be used directly for the connection of all tubes provided with lugs 8, while the lug 8 as a unit coupling part is previously firmly connected by welding or screwing to the tubes 2, 35 of different dimensions.
  • a flange 10 is provided for this connection of the approach 8 with a shaft tube 2, which can consist of one piece with the approach 8 or is welded to the approach 8.
  • Fig. 5 shows a compilation similar to Fig. 4, but with an extension 8 screwed into the shaft tube.
  • All extension tubes 2, which are permanently connected to such an extension 8 to form a unit for the operating case, e.g. are welded or screwed, can be interchangeably connected to a unit with a correspondingly adapted pipe thread attachment 3.
  • Each drill equipped with a uniform attachment 3 can be equipped with a large number of shaft tubes 2 quickly and easily.
  • the drill core can be removed while the next diamond drill shaft 2 is already installed and in use.
  • the shaft tubes 2 can have a relatively long length in order to penetrate thick concrete ceilings or the like in concrete drilling machines. For this purpose, they can also be supplemented with extension tubes.
  • the shaft tubes 2 can also be made relatively short if they are used, for example, for drilling out socket holes.
  • an assortment of different types of shaft tubes 2 and extension tubes 39 is advantageous if all these different types work together with essentially only one coupling part 3 assigned to the drilling device and can therefore be replaced easily, quickly and safely at any time.
  • the clamping ring can also have surfaces 13, 15 which are inclined and match one another in addition to the surface 14 and the extension 8 in addition to the surface 9.
  • the opposing surfaces 13, 15 can essentially serve to center the parts 2, 3 during assembly if the parts to be connected are unwieldy.
  • Precision stems according to DIN 2391 have proven themselves as shaft tubes 2. However, other seamless steel tubes that meet the respective requirements can also be used.
  • a smooth wall was tested as the inner wall for the shaft tube 2.
  • An easy removal of the drill core also results with an inner wall that has longitudinal grooves.
  • Such an inner wall would have the additional advantage that the drill core cannot or only rarely block the water flow.
  • a shaft tube with an inner wall like a drawn barrel for rifles or guns also meets the requirements for water flow and easy removal of the drill core.
  • Fig. 6 shows an approach 8 with a flange 10 as a structural unit for the connection with drill pipes, in particular shaft pipes 2 of larger diameter.
  • the flanges are provided with holes for the screw connection of the flange 10 with the appropriately designed end of the tube.
  • Fig. 7 an approach 8 is shown, which is connected to a threaded bolt 20 to form a unit or is made in one piece therewith.
  • This approach is primarily intended for but not limited to drill pipes or small diameter shaft pipes.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)

Claims (11)

1. Accouplement pour tringlerie à transmission de forces, notamment pour des couronnes de forage diamantées comprenant un fûttubulaire et une pièce filetée de raccordement tubulaire, par exemple pour des couronnes de forage industriel à noyau diamanté en vue de l'entaillage humide et/ou à sec, accouplement dans lequel une première pièce d'accouplement est pourvue, à une extrémité, d'un appendice pouvant être accouplé à une seconde pièce d'accouplement; dans lequel des parties de l'appendice et de la seconde pièce d'accouplement qui sont tournées les unes vers les autres sont appliquées à plat les unes contre les autres; et dans lequel, en vue de l'accouplement, les parties tournées les unes vers les autres sont munies, d'une part, de saillies et, d'autre part, de creusures, gorges ou échancrures, qui pénètrent les unes dans les autres lors de l'accouplement, caractérisé par le fait que les faces tournées l'une vers l'autre présentent des surfaces de coincement (9, 14) disposées perpendiculairement à l'axe de la tringlerie (2); par le fait que les surfaces de coincement (9, 14) sont réalisées et dimensionées de manière qu'elle puissent, lors de l'accouplement, être pressées à plat l'une contre l'autre; et par le fait qu'il est prévu, pour obtenir l'effet de compression, une bague de coincement (25) qui est montée à rotation, au moyen d'une solidarisation vissée, sur la pièce d'accouplement (3) portant les saillies (11), une face extrême (14) de la bague de coincement (25) formant la surface de coincement (14).
2. Accouplement selon la revendication 1, caractérisé par le fait que les saillies (11) sont formées par une cheville qui traverse l'appendice (8) et s'engage, par ses extrémités, dans la région des gorges (12), en dépassant pour l'essentiel radialement hors de l'appendice (8).
3. Accouplement selon la revendication 1 ou 2, caractérisé par le fait que les gorges (12) comprennent une zone de pénétration (12a) s'étendant dans le sens axial de la tringlerie (2, 3, 8), une zone (12b) s'étendant, selon un angle, à l'écart de la direction axiale du fût tubulaire (2), ainsi qu'une position d'en- crantage (R) dans cette zone.
4. Accouplement selon l'une des revendications 1-3, caractérisé par le fait que des moyens (25) sont prévus pour coincer les saillies (11) dans la position d'encrantage (R).
5. Accouplement selon la revendication 4, caractérisé par le fait que les moyens (25) sont formés par la bague de coincement (25) qui est montée à rotation, par son filetage intérieur (32), sur le filetage extérieur (33) de la pièce d'accouplement (3) portant les saillies (11), et qui, lors de l'établissement de la liaison des surfaces par coincement, tire fermement les saillies dans les crans.
6. Accouplement selon la revendication 5, caractérisé par le fait que la bague de coincement (25) présente, sur son côté tourné vers l'appendice (8), une surface de coincement (14) qui est adaptée à une surface correspondante de coincement (9) de l'appendice (8).
7. Accouplement selon l'une des revendications 1-6, caractérisé par le fait que la seconde pièce d'accouplement (3) comporte une partie d'engagement (35) substantiellement cylindrique, dont le diamètre externe est plus petit que le diamètre interne de l'appendice (8); par le fait que la partie d'engagement (35) peut être introduite dans l'appendice (8) par coulissement; et par le fait qu'une garniture d'étanchement (16) est prévue entre l'appendice (8) et la partie d'engagement (35).
8. Accouplement selon la revendication 7, caractérisé par le fait que la garniture d'étanchement (16) est un joint torique; et par le fait qu'une rainure annulaire (17) est pratiquée dans la partie d'engagement (35) en vue de recevoir la garniture d'étanchement (16).
9. Accouplement selon l'une des revendications 1-8, caractérisé par le fait que la seconde pièce d'accouplement (3) est réalisée, avec un raccord tubulaire (6), la bague de coincement (25), la partie d'engagement (35) et la cheville (11), sous la forme d'un élément constitutif unitaire pour un éventail de tubulures de tringlerie (2, 39) équipées ou pouvant être équipées d'un appendice (8).
10. Accouplement selon l'une des revendications 1-9, caractérisé par le fait que l'appendice (8) est conçu, conjointement à un collet (10), à un embout fileté (20) ou organes similaires, sous la forme d'un ensemble structurel unitaire qui peut être relié à des tubulures de tringlerie (2, 39) apprêtées en conséquence.
11. Accouplement selon la revendication 9 ou 10, caractérisé par le fait que les ensembles structurels unitaires sont fabriqués en de l'acier inoxydable.
EP87101290A 1986-02-05 1987-01-30 Couplement, notamment pour une couronne de sondage diamantée avec fût de conduit et raccord de filet Expired EP0235581B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101290T ATE47463T1 (de) 1986-02-05 1987-01-30 Kupplung, insbesondere fuer diamantbohrkrone mit schaftrohr und rohrgewindeanschluss.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863603499 DE3603499A1 (de) 1985-05-07 1986-02-05 Diamantbohrkrone mit schaftrohr und rohrgewindeanschluss
DE3603499 1986-02-05

Publications (2)

Publication Number Publication Date
EP0235581A1 EP0235581A1 (fr) 1987-09-09
EP0235581B1 true EP0235581B1 (fr) 1989-10-18

Family

ID=6293414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101290A Expired EP0235581B1 (fr) 1986-02-05 1987-01-30 Couplement, notamment pour une couronne de sondage diamantée avec fût de conduit et raccord de filet

Country Status (4)

Country Link
EP (1) EP0235581B1 (fr)
AT (1) ATE47463T1 (fr)
DE (1) DE3760820D1 (fr)
ES (1) ES2011266B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233365B4 (de) * 2002-07-23 2016-08-18 Hilti Aktiengesellschaft Werkzeugaufnahme für eine Kernbohrkrone

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
ATE198638T1 (de) * 1987-10-27 2001-01-15 Geissler & Kuper Gmbh Kupplung für bohrgestänge mit kraftübertragung auf eine bohrkrone
EP0909870A1 (fr) * 1997-10-15 1999-04-21 DIAMANT BOART Société Anonyme Accouplement pour dispositif à transmission de forces
GB0213019D0 (en) 2002-06-06 2002-07-17 Clark John Drilling attachment
DE102005015494B4 (de) 2005-04-05 2023-03-23 Friedr. Ischebeck Gmbh Bajonettkupplung
US7517179B2 (en) 2006-11-16 2009-04-14 Black & Decker Inc. Small holesaw mandrel assembly
US7488146B2 (en) 2006-11-16 2009-02-10 Black & Decker Inc. Large holesaw mandrel assembly
US8434976B2 (en) 2009-03-20 2013-05-07 Black & Decker Inc. Small hole saw mandrel assembly
JP2014030867A (ja) * 2012-08-02 2014-02-20 Hitachi Koki Co Ltd 動力工具用コアビット及びコアビット組
CN105804670B (zh) * 2016-03-11 2017-12-05 泰州市润杰五金机械制造有限公司 一种钻杆连接结构
CN106624076A (zh) * 2016-12-30 2017-05-10 苏州赛易特环保科技有限公司 一种可拆卸钻头
CN106583809A (zh) * 2016-12-30 2017-04-26 苏州赛易特环保科技有限公司 一种多功能钻具
CN106735457A (zh) * 2016-12-30 2017-05-31 苏州赛易特环保科技有限公司 一种制孔用钻具
CH714193A2 (de) 2017-09-27 2019-03-29 Zermec Eng Gmbh Bohrkrone.
CN110332429A (zh) * 2019-07-15 2019-10-15 深圳市固胜智能科技有限公司 一种可快速拆装的云台组件

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US3664444A (en) * 1970-05-11 1972-05-23 Mobile Drilling Co Inc Air drilling method using controlled split stream
GB1468866A (fr) * 1974-08-15 1977-03-30
DE2455799C3 (de) * 1974-11-26 1981-02-19 Stahl- Und Apparatebau Hans Leffer Gmbh, 6602 Dudweiler Verfahren zum Befestigen und Lösen von in Aufnahmebohrungen angeordneter Stahl-Sitzringe
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DE3401664A1 (de) * 1984-01-19 1985-07-25 Fried. Krupp Gmbh, 4300 Essen Werkzeuganordnung, bestehend aus schlagbohrer und bohrstangen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233365B4 (de) * 2002-07-23 2016-08-18 Hilti Aktiengesellschaft Werkzeugaufnahme für eine Kernbohrkrone

Also Published As

Publication number Publication date
EP0235581A1 (fr) 1987-09-09
ES2011266B3 (es) 1990-01-01
ATE47463T1 (de) 1989-11-15
DE3760820D1 (en) 1989-11-23

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