EP0149207A2 - Dispositif d'outil, comportant un trépan à percussion et une tige de forage - Google Patents

Dispositif d'outil, comportant un trépan à percussion et une tige de forage Download PDF

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Publication number
EP0149207A2
EP0149207A2 EP84116067A EP84116067A EP0149207A2 EP 0149207 A2 EP0149207 A2 EP 0149207A2 EP 84116067 A EP84116067 A EP 84116067A EP 84116067 A EP84116067 A EP 84116067A EP 0149207 A2 EP0149207 A2 EP 0149207A2
Authority
EP
European Patent Office
Prior art keywords
cone
boring bar
securing element
drill
tool arrangement
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.)
Withdrawn
Application number
EP84116067A
Other languages
German (de)
English (en)
Other versions
EP0149207A3 (fr
Inventor
Wilhelm Poerschke
Ulrich Dipl.-Ing. Rauen
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fried Krupp AG filed Critical Fried Krupp AG
Publication of EP0149207A2 publication Critical patent/EP0149207A2/fr
Publication of EP0149207A3 publication Critical patent/EP0149207A3/fr
Withdrawn legal-status Critical Current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

Definitions

  • Tool arrangement consisting of hammer drill and boring bar
  • the invention relates to a tool assembly according to the preamble of claim 1.
  • Such tool assemblies are commonly used when working with H andbohrphasemmern in the drilling of explosive and anchor holes in the tunneling and mining-tunneling.
  • tool arrangements are therefore generally used in which the percussion drill and the boring bar are connected by a thread pairing, the percussion drill having an internal thread, as described, for example, in US Pat. No. 2,725,216. has and the boring bar is provided with a corresponding external thread.
  • Such tool arrangements are not only more complex to manufacture, they also require a larger outer diameter, so that you can choose the smallest Bohr trim knife is more restricted.
  • the invention has for its object to improve a tool assembly consisting of a hammer drill provided with an inner cone and a boring bar provided with a corresponding outer cone so that the hammer drill remains on the boring bar even when using heavy hydraulic machines.
  • the securing element prevents the hammer drill from falling off even if the conical connection has already loosened. Nevertheless, the impact drill can be removed from the boring bar if necessary thanks to the resilient nature of the securing element.
  • the percussion drill can be applied to the boring bar in a particularly simple manner and removed again when the tool arrangement is designed.
  • trained securing elements are commercially available elements, so that the invention can be implemented with little effort.
  • the rock impact drill 1 also called impact drill in the following for short - is provided with an inner cone 3, into which an inner groove 4 is embedded.
  • the boring bar 2 is provided with a truncated cone-shaped outer cone 5, into which a circumferential groove 6 is embedded.
  • a so-called clip ring or spring clip 7 the inside diameter D 7 of which, in the undeformed state, is larger than the outside diameter D 6 of the circumferential groove 6, is pushed onto the conical shaft 5 and pressed into the circumferential groove 6.
  • the percussion drill 1 is applied with its inner cone 3 to the conical pin 5.
  • the clip ring 7 is further compressed by the inner cone 3, reducing its interruption 8 on the circumference, until the elevation 9 of the clip ring 7 can be inserted into the inner groove 4.
  • the clip ring 7, through its elevation 9 and the inner groove 4 represents a certain resistance to the impact drill 1 slipping off the boring bar 2.
  • the impact drill 1 can be easily removed from the boring bar 2 when higher axial forces are applied.
  • the tool arrangement according to FIG. 2. has two round wire snap rings 11, 12, which can be designed, for example, in the form B according to DIN 7993 (4/70).
  • In the inner cone 3 of the hammer drill 1 are corresponding to two I nnennuten 4 and arranged according to two circumferential grooves 6 in the conical pin. 5

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
EP84116067A 1984-01-19 1984-12-21 Dispositif d'outil, comportant un trépan à percussion et une tige de forage Withdrawn EP0149207A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3401664 1984-01-19
DE19843401664 DE3401664A1 (de) 1984-01-19 1984-01-19 Werkzeuganordnung, bestehend aus schlagbohrer und bohrstangen

Publications (2)

Publication Number Publication Date
EP0149207A2 true EP0149207A2 (fr) 1985-07-24
EP0149207A3 EP0149207A3 (fr) 1987-10-07

Family

ID=6225298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84116067A Withdrawn EP0149207A3 (fr) 1984-01-19 1984-12-21 Dispositif d'outil, comportant un trépan à percussion et une tige de forage

Country Status (2)

Country Link
EP (1) EP0149207A3 (fr)
DE (1) DE3401664A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235581A1 (fr) * 1986-02-05 1987-09-09 Geissler & Kuper GmbH Diamantwerkzeug-Wiederaufbereitung Couplement, notamment pour une couronne de sondage diamantée avec fût de conduit et raccord de filet
WO1998046853A1 (fr) * 1997-04-16 1998-10-22 Kennametal Inc. Raccord comportant un element de retenue a resistance variable
CN113153176A (zh) * 2021-03-18 2021-07-23 江苏和信石油机械有限公司 一种高强度大直径钻杆

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2379472A (en) * 1943-09-25 1945-07-03 Edward J Bowman Separable connection for rock drills and like structures
US3585803A (en) * 1968-11-15 1971-06-22 Exxon Production Research Co Pile splice
DE2448377A1 (de) * 1974-10-08 1976-04-22 Bohrer Gmbh Fuer Ind Handel Ha Werkzeugsatz fuer bohrhaemmer
DE3322887A1 (de) * 1983-06-24 1985-01-03 Hilti Ag, Schaan Gesteinsbohrwerkzeug

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235581A1 (fr) * 1986-02-05 1987-09-09 Geissler & Kuper GmbH Diamantwerkzeug-Wiederaufbereitung Couplement, notamment pour une couronne de sondage diamantée avec fût de conduit et raccord de filet
WO1998046853A1 (fr) * 1997-04-16 1998-10-22 Kennametal Inc. Raccord comportant un element de retenue a resistance variable
US5927411A (en) * 1997-04-16 1999-07-27 Kennametal Inc. Connector with variable resistance retention member
CN113153176A (zh) * 2021-03-18 2021-07-23 江苏和信石油机械有限公司 一种高强度大直径钻杆
CN113153176B (zh) * 2021-03-18 2022-02-01 江苏和信石油机械有限公司 一种高强度大直径钻杆

Also Published As

Publication number Publication date
DE3401664A1 (de) 1985-07-25
EP0149207A3 (fr) 1987-10-07

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Inventor name: POERSCHKE, WILHELM

Inventor name: RAUEN, ULRICH, DIPL.-ING.