EP1564365A3 - Drill bit - Google Patents

Drill bit Download PDF

Info

Publication number
EP1564365A3
EP1564365A3 EP05010556A EP05010556A EP1564365A3 EP 1564365 A3 EP1564365 A3 EP 1564365A3 EP 05010556 A EP05010556 A EP 05010556A EP 05010556 A EP05010556 A EP 05010556A EP 1564365 A3 EP1564365 A3 EP 1564365A3
Authority
EP
European Patent Office
Prior art keywords
drill bit
face
cutting edges
region
channels
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Withdrawn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
EP05010556A
Other languages
German (de)
French (fr)
Other versions
EP1564365A2 (en
Inventor
Herbert Papousek
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.)
Atlas Copco Mai GmbH
Original Assignee
Atlas Copco Mai 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 Atlas Copco Mai GmbH filed Critical Atlas Copco Mai GmbH
Publication of EP1564365A2 publication Critical patent/EP1564365A2/en
Publication of EP1564365A3 publication Critical patent/EP1564365A3/en
Withdrawn legal-status Critical Current

Links

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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts
    • 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
    • E21B10/36—Percussion drill bits
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Landscapes

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

Abstract

Eine Bohrkrone (1) besitzt an ihrer Stirnfläche ausschließlich gekrümmte Schneiden (2) oder eine Kombination wenigstens einer geraden Schneide mit wenigstens zwei gekrümmten Schneiden (2). Die Schneiden (2) an der Stirnfläche der Bohrkrone (1) sind so angeordnet, dass sie von der Achse der Bohrkrone (1) ausgehen oder dieser unmittelbar benachbart enden. Von einem zum Befestigen der Bohrkrone (1) an einem Ankerstab eines Injektionsbohrankers dienenden Sackloch (5) gehen drei Kanäle (10) aus, deren Mündungen (11) nicht im Bereich der Stirnfläche der Bohrkrone (1) angeordnet sind, sondern im Bereich des Mantels (13) derselben, der sich zu den Schneiden (2) hin konisch erweitert. Dabei sind die Mündungen (11) der Kanäle (10) im Bereich von konkaven Flächenabschnitten (12) der Mantelfläche (13) der Bohrkrone (1) angeordnet, so dass sie gegenüber dem Umfang der Stirnfläche der Bohrkrone (1) zurückversetzt angeordnet sind.

Figure imgaf001
A drill bit (1) has at its end face exclusively curved cutting edges (2) or a combination of at least one straight cutting edge with at least two curved cutting edges (2). The cutting edges (2) on the end face of the drill bit (1) are arranged so that they emanate from the axis of the drill bit (1) or end immediately adjacent. From a for fixing the drill bit (1) on an anchor rod of a Injektionsbohrankers serving blind hole (5) go out three channels (10) whose mouths (11) are not arranged in the region of the end face of the drill bit (1), but in the region of the shell (13) thereof, which widens conically towards the cutting edges (2). In this case, the openings (11) of the channels (10) in the region of concave surface portions (12) of the lateral surface (13) of the drill bit (1) are arranged so that they are arranged offset from the scope of the end face of the drill bit (1).
Figure imgaf001
EP05010556A 2001-05-17 2002-05-16 Drill bit Withdrawn EP1564365A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT7892001 2001-05-17
AT7892001 2001-05-17
EP02769438A EP1387923B1 (en) 2001-05-17 2002-05-16 Drill bit

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP02769438A Division EP1387923B1 (en) 2001-05-17 2002-05-16 Drill bit

Publications (2)

Publication Number Publication Date
EP1564365A2 EP1564365A2 (en) 2005-08-17
EP1564365A3 true EP1564365A3 (en) 2007-05-02

Family

ID=3680959

Family Applications (2)

Application Number Title Priority Date Filing Date
EP02769438A Expired - Lifetime EP1387923B1 (en) 2001-05-17 2002-05-16 Drill bit
EP05010556A Withdrawn EP1564365A3 (en) 2001-05-17 2002-05-16 Drill bit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP02769438A Expired - Lifetime EP1387923B1 (en) 2001-05-17 2002-05-16 Drill bit

Country Status (12)

Country Link
US (2) US7070010B2 (en)
EP (2) EP1387923B1 (en)
JP (1) JP3961959B2 (en)
CN (2) CN1608166A (en)
CA (1) CA2447223C (en)
CZ (1) CZ20033075A3 (en)
DE (1) DE50207010D1 (en)
DK (1) DK1387923T3 (en)
ES (1) ES2263815T3 (en)
PL (1) PL197413B1 (en)
PT (1) PT1387923E (en)
WO (1) WO2002092957A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060101949A1 (en) * 2003-04-25 2006-05-18 Burton Kozak Damaged bolt and screw removing devices
US8215206B2 (en) * 2003-04-25 2012-07-10 Combined Products Co. #1 Inc. Damaged bolt and screw removing devices
US8276482B2 (en) 2003-04-25 2012-10-02 Combined Products Co. #1 Inc. Damaged bolt and screw removing devices
US9408592B2 (en) * 2003-12-23 2016-08-09 Senorx, Inc. Biopsy device with aperture orientation and improved tip
US8360990B2 (en) * 2004-12-16 2013-01-29 Senorx, Inc. Biopsy device with aperture orientation and improved tip
JP4809711B2 (en) * 2006-03-22 2011-11-09 日本プロジェクト株式会社 Drill
US7905164B2 (en) * 2008-09-18 2011-03-15 Combined Products Co. #1 Inc. Adjustable one way screw remover
US7861807B2 (en) * 2008-12-03 2011-01-04 Black & Decker Inc. Drill bit including one piece cutting head
FR3004746B1 (en) * 2013-04-19 2015-05-15 Diager CUTTING PLATE
FI126596B (en) * 2014-01-20 2017-02-28 Lehti Group Oy dRILL BIT
US9572631B2 (en) * 2014-03-05 2017-02-21 Form And Function Dental Services, P.C. Asymmetrical dental tool with cooling channels
EP3421163A1 (en) * 2017-06-27 2019-01-02 HILTI Aktiengesellschaft Drill for chiselling rock
CN108868618B (en) * 2018-08-03 2023-12-12 洛阳中岩工程材料有限公司 Cast anchoring drill bit convenient for efficient production
US11948700B2 (en) 2020-11-11 2024-04-02 Grant Charters In-situ method of drilling to collect dry samples from a nuclear reactor core interior for analysis

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189021A (en) * 1921-11-21 1922-11-23 Arthur Lee Hawkesworth Drills
GB633999A (en) * 1947-03-22 1949-12-30 Atlas Diesel Ab Improvements in drill bits for hammer drills having hard metal cutting edges
DE927022C (en) * 1953-11-17 1955-04-28 Gustav Etschel Drill bit for deep penetration drilling
GB981489A (en) * 1962-10-19 1965-01-27 Tungsten Carbide Developments Improvements in or relating to rock bits
FR1411867A (en) * 1963-08-19 1965-09-24 P & V Mining & Engineering Ltd Method and apparatus for increasing the action of cleaning liquid in tools for perforating rocks
AU450556B2 (en) * 1973-01-09 1974-07-11 "improvements in rock drill bits"
US4185708A (en) * 1976-08-31 1980-01-29 Akademia Gorniczo-Hunicza im, Stanislawa Staszica Bit for drilling holes in rocks
WO1997019247A1 (en) * 1995-11-23 1997-05-29 Techmo Entwicklungs- Und Vertriebs Gmbh Drill bit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE918741C (en) 1949-09-03 1954-10-04 Boehler & Co Ag Geb Rock drill with single or multiple cutting edges
US3997279A (en) * 1975-01-20 1976-12-14 Parker Manufacturing Co. Drill bit
US5810517A (en) * 1993-06-28 1998-09-22 Monroe Cutting Tool Inc. Rotary milling cutters
US5452971A (en) * 1994-03-08 1995-09-26 Nevills; Alva D. Rotary end cutting tool

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189021A (en) * 1921-11-21 1922-11-23 Arthur Lee Hawkesworth Drills
GB633999A (en) * 1947-03-22 1949-12-30 Atlas Diesel Ab Improvements in drill bits for hammer drills having hard metal cutting edges
DE927022C (en) * 1953-11-17 1955-04-28 Gustav Etschel Drill bit for deep penetration drilling
GB981489A (en) * 1962-10-19 1965-01-27 Tungsten Carbide Developments Improvements in or relating to rock bits
FR1411867A (en) * 1963-08-19 1965-09-24 P & V Mining & Engineering Ltd Method and apparatus for increasing the action of cleaning liquid in tools for perforating rocks
AU450556B2 (en) * 1973-01-09 1974-07-11 "improvements in rock drill bits"
US4185708A (en) * 1976-08-31 1980-01-29 Akademia Gorniczo-Hunicza im, Stanislawa Staszica Bit for drilling holes in rocks
WO1997019247A1 (en) * 1995-11-23 1997-05-29 Techmo Entwicklungs- Und Vertriebs Gmbh Drill bit

Also Published As

Publication number Publication date
CA2447223A1 (en) 2002-11-21
EP1564365A2 (en) 2005-08-17
CA2447223C (en) 2008-04-01
EP1387923A2 (en) 2004-02-11
WO2002092957A3 (en) 2003-04-17
US7070010B2 (en) 2006-07-04
US20040134688A1 (en) 2004-07-15
EP1387923B1 (en) 2006-05-31
ES2263815T3 (en) 2006-12-16
PL197413B1 (en) 2008-03-31
PL366519A1 (en) 2005-02-07
PT1387923E (en) 2006-09-29
JP3961959B2 (en) 2007-08-22
CN1982646A (en) 2007-06-20
CZ20033075A3 (en) 2004-03-17
US7231992B2 (en) 2007-06-19
DE50207010D1 (en) 2006-07-06
WO2002092957A2 (en) 2002-11-21
US20060032676A1 (en) 2006-02-16
CN1608166A (en) 2005-04-20
JP2004529280A (en) 2004-09-24
DK1387923T3 (en) 2006-09-18

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