EP1069278A1 - Dent de forage - Google Patents

Dent de forage Download PDF

Info

Publication number
EP1069278A1
EP1069278A1 EP00110438A EP00110438A EP1069278A1 EP 1069278 A1 EP1069278 A1 EP 1069278A1 EP 00110438 A EP00110438 A EP 00110438A EP 00110438 A EP00110438 A EP 00110438A EP 1069278 A1 EP1069278 A1 EP 1069278A1
Authority
EP
European Patent Office
Prior art keywords
tooth
boring
drilling
center line
shaft
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
EP00110438A
Other languages
German (de)
English (en)
Other versions
EP1069278B1 (fr
Inventor
Werner Harthauser
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.)
Bauer Maschinen GmbH
Original Assignee
Bauer Spezialtiefbau 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 Bauer Spezialtiefbau GmbH filed Critical Bauer Spezialtiefbau GmbH
Publication of EP1069278A1 publication Critical patent/EP1069278A1/fr
Application granted granted Critical
Publication of EP1069278B1 publication Critical patent/EP1069278B1/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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • E21B10/633—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements independently detachable
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements
    • 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
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits

Definitions

  • the invention relates to a drilling tooth for earth working a tooth part and a shaft for releasable fixing in one Bracket for a drilling device.
  • drilling teeth are used in drilling tools for earth bores used.
  • the drilling teeth are arranged side by side in a drill head, that the straight boring teeth cutting in one plane lie, form a radial cutting line.
  • the on a circular path bored teeth with one through the Alignment of the bracket fixed predetermined pressure angle on the drilling tooth cutting edges are in particular on the cutting line with changing soil conditions of different Strength and hardness very unevenly loaded, which uneven forces and moments are introduced into the drilling tooth become.
  • the invention is therefore based on the object of specifying a Drilling tooth of the type mentioned, which provides an improved working result with different soil conditions.
  • a tooth cutting edge of the tooth part outside a shaft centerline and a tooth cutting plane extends at an angle of attack to the shaft center line.
  • This angular adjustment of the tooth cutting edge level the pressure angle of the drilling tooth can be dependent of the respective soil conditions through changing use different drilling teeth specifically adjusted and adjusted become. So different drilling teeth with z. B. two or three different angles of attack are used, which are fixed in the holders of the drilling tool.
  • a drilling tooth 1 of a rotary drilling tool has a front one Tooth part 2 and a rear shaft 3 (see Fig. 1), which is cylindrical and for receiving in a bore 4 a holder 5 (Fig. 2) of the rotary drilling tool is provided is.
  • a transition section 6 between the shaft 3 and the substantially wedge-shaped tooth part 2 has an im Cross section to a center line 7 of the shaft 3 elongated rectangular form.
  • Two opposite shoulders 8, 9 on the bracket 5 see FIGS.
  • Positioning device 10 which accommodates the rectangular Transitional section 6 allowed in two positions, the order 180 ° uni the shaft center line 7, which is also the center line the bore 4 is pivoted and in which the two opposite, longer side surfaces 6 'of Transition section 6 assigned to the inner surfaces 8 'and 9' are.
  • the tooth part 2 is at the transition section 6 opposite Shaft center line 7 is pivoted so that a tooth cutting plane 11 of the tooth part 2 (see Fig. 1), the Plane of symmetry of the tooth part 2 forms and in which the tooth cutting edge 12 extends at an angle of attack of, for example Is pivoted 5 °.
  • the intersection of the tooth cutting plane 11 with the shaft center line 7 lies approximately at the transition section 6.
  • the tooth cutting edge 12 can in a conventional manner on a straight Line and from a continuous tooth element or out several adjacent tooth elements formed with interruptions his.
  • the tooth element (s) is or are in particular made of hard metal.
  • tooth part 2 shows an alternative design of the tooth part 2 shown, in which the cutting edge 12, for example five similar carbide toothed pins 13, 13 ', 13' ' is formed on a curved line in the tooth cutting plane 11 is so that the outer toothed pins 13 '' opposite the inner toothed pins 13, 13 'are reset.
  • the cutting edge 12 for example five similar carbide toothed pins 13, 13 ', 13' ' is formed on a curved line in the tooth cutting plane 11 is so that the outer toothed pins 13 '' opposite the inner toothed pins 13, 13 'are reset.
  • everyone Toothed pin 13, 13 ', 13' ' is in a recess 14 on the Correspondingly curved front edge 15 of the tooth part 2 is used and fixed.
  • the two outer toothed pins 13 ′′ can be on the tooth part 2 in this way arranged and fastened that their cutting over the side edges 18 of the tooth part 2 protrude so that a lateral wear of the tooth part 2 is reduced.
  • a transverse bore or through opening 19 is central in the Tooth part 2 is formed.
  • a pen-shaped, for example Tool that is inserted into the through opening 19 can be, the drilling tooth 1 from its receiving position are pulled in the holder 5, one largely axial release force is applied.
  • the drilling tooth 1 is in a known manner, for example by means of Clamping bush held detachably in the holder 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Drilling Tools (AREA)
  • Earth Drilling (AREA)
EP00110438A 1999-07-12 2000-05-16 Dent de forage Expired - Lifetime EP1069278B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19932440A DE19932440C2 (de) 1999-07-12 1999-07-12 Bohrzahn zur Erdbearbeitung
DE19932440 1999-07-12

Publications (2)

Publication Number Publication Date
EP1069278A1 true EP1069278A1 (fr) 2001-01-17
EP1069278B1 EP1069278B1 (fr) 2004-12-29

Family

ID=7914436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110438A Expired - Lifetime EP1069278B1 (fr) 1999-07-12 2000-05-16 Dent de forage

Country Status (2)

Country Link
EP (1) EP1069278B1 (fr)
DE (2) DE19932440C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2963237A1 (fr) * 2014-07-03 2016-01-06 Sandvik Intellectual Property AB Ensemble de retenue de trépan de coupe à angle variable
CN110241872A (zh) * 2014-01-31 2019-09-17 勒罗伊·G·哈根布赫 具有自由轮转的切割元件的刀具组件

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6828305B2 (en) 2001-06-04 2004-12-07 Nobex Corporation Mixtures of growth hormone drug-oligomer conjugates comprising polyalkylene glycol, uses thereof, and methods of making same
DE202009017627U1 (de) 2009-12-23 2010-09-23 Gawlak, Matthias Einrichtung zum Abziehen von verschlissenen Bohrzähnen oder Rundschaftmeißeln an Bohrschnecken bzw. -eimern

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705128A (en) * 1950-03-15 1955-03-29 Austin Powder Co Auger head
GB1204194A (en) * 1966-12-27 1970-09-03 Gerald Alger Petersen Pilot-bit with replaceable teeth
US4083605A (en) * 1976-06-22 1978-04-11 Kennametal Inc. Ripper tooth
US4595241A (en) * 1984-04-16 1986-06-17 Gilbert Jerry F Digging tooth and holder therefor
US4917196A (en) * 1989-08-15 1990-04-17 Kennametal Inc. Excavating tooth for an earth auger
US5143163A (en) * 1991-08-29 1992-09-01 Kennametal Inc. Digging tooth

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705128A (en) * 1950-03-15 1955-03-29 Austin Powder Co Auger head
GB1204194A (en) * 1966-12-27 1970-09-03 Gerald Alger Petersen Pilot-bit with replaceable teeth
US4083605A (en) * 1976-06-22 1978-04-11 Kennametal Inc. Ripper tooth
US4595241A (en) * 1984-04-16 1986-06-17 Gilbert Jerry F Digging tooth and holder therefor
US4917196A (en) * 1989-08-15 1990-04-17 Kennametal Inc. Excavating tooth for an earth auger
US4917196B1 (fr) * 1989-08-15 1992-09-15 Kennametal Inc
US5143163A (en) * 1991-08-29 1992-09-01 Kennametal Inc. Digging tooth

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110241872A (zh) * 2014-01-31 2019-09-17 勒罗伊·G·哈根布赫 具有自由轮转的切割元件的刀具组件
EP2963237A1 (fr) * 2014-07-03 2016-01-06 Sandvik Intellectual Property AB Ensemble de retenue de trépan de coupe à angle variable

Also Published As

Publication number Publication date
DE19932440C2 (de) 2003-04-10
DE50009078D1 (de) 2005-02-03
DE19932440A1 (de) 2001-01-25
EP1069278B1 (fr) 2004-12-29

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