EP2775090A3 - Bohrkrone - Google Patents

Bohrkrone Download PDF

Info

Publication number
EP2775090A3
EP2775090A3 EP14450008.9A EP14450008A EP2775090A3 EP 2775090 A3 EP2775090 A3 EP 2775090A3 EP 14450008 A EP14450008 A EP 14450008A EP 2775090 A3 EP2775090 A3 EP 2775090A3
Authority
EP
European Patent Office
Prior art keywords
drill bit
cutting edge
face
over
cutting
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Withdrawn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
EP14450008.9A
Other languages
English (en)
French (fr)
Other versions
EP2775090A2 (de
Inventor
Karl BÖHM
Dieter GLANTSCHNEGG
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.)
Dywidag Systems International GmbH Austria
Original Assignee
Dywidag Systems International GmbH Austria
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 Dywidag Systems International GmbH Austria filed Critical Dywidag Systems International GmbH Austria
Publication of EP2775090A2 publication Critical patent/EP2775090A2/de
Publication of EP2775090A3 publication Critical patent/EP2775090A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • 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
    • 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
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

Bei einer Bohrkrone (1) für eine Vorrichtung zum Bohren von Löchern in weichem bzw. mildem Boden- oder Gesteinsmaterial mit einer Mehrzahl von sich zumindest über eine Stirnfläche (2) der Bohrkrone (1) erstreckenden Schneiden (3, 5), welche Schneiden (3, 5) mit sowohl wenigstens zwei voneinander verschiedenen "radialen" Erstreckungen als auch zwei voneinander verschiedenen "axialen" Erstreckungen in Richtung einer Drehachse (6) der Bohrkrone (1) ausgebildet sind, sowie wenigstens eine Öffnung (11) zum Ausbringen von Spülfluid, erstreckt sich eine eine geringere radiale Erstreckung aufweisende erste Schneide (3) über den gesamten Bohrkronendurchmesser (a), sind an die eine geringere radiale Erstreckung aufweisende erste Schneide (3) zwei über einen Außenumfang der Stirnfläche (2) der Bohrkrone (1) weiter als die erste Schneide (3) vorragende zweite Schneiden (5) vorgesehen und die zweiten Schneiden (5) sind im Bereich der Stirnfläche (2) der Bohrkrone (1) und/oder im Bereich eines Bohrkronenschafts (4) geneigt, mit der ersten Schneide (3) und/oder der mit der Drehachse (6) der Bohrkrone (1) einen spitzen Winkel (α) einschließend ausgebildet.
EP14450008.9A 2013-03-05 2014-03-05 Bohrkrone Withdrawn EP2775090A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATGM72/2013U AT13738U1 (de) 2013-03-05 2013-03-05 Bohrkrone

Publications (2)

Publication Number Publication Date
EP2775090A2 EP2775090A2 (de) 2014-09-10
EP2775090A3 true EP2775090A3 (de) 2016-05-18

Family

ID=51176839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14450008.9A Withdrawn EP2775090A3 (de) 2013-03-05 2014-03-05 Bohrkrone

Country Status (2)

Country Link
EP (1) EP2775090A3 (de)
AT (1) AT13738U1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106907112B (zh) * 2017-05-05 2023-06-20 宜昌神达科技有限公司 一种钻井用pdc钻头

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1169369A (en) * 1916-01-25 Samuel Peck Drill.
DE865874C (de) * 1941-05-09 1953-02-05 Wengeler & Kalthoff Gesteinschlagbohrer mit hartmetallbestueckter Meisselschneide
DE937101C (de) * 1949-03-11 1955-12-29 Gerhard Kuehne Gesteinsbohrer fuer drehendes Bohren
DE941182C (de) * 1952-03-18 1956-04-05 Wilhelm Steinkopf Schlagbohrkrone fuer Gesteinsbohrer
FR1265943A (fr) * 1960-05-25 1961-07-07 Europ De Turboforage Soc Trépan pour le forage du sol
US3339649A (en) * 1965-01-19 1967-09-05 Atlas Copco Ab Rock drill bits
DE2701044A1 (de) * 1976-01-12 1977-07-21 Reed Tool Co Erdbohrvorrichtung
DE4012772A1 (de) * 1990-04-21 1991-10-24 Westa Werkzeugbau Bohrer fuer bohrhaemmer, insbesondere zum bohren im gestein, beton o. dgl.
DE29611966U1 (de) * 1996-07-10 1997-11-13 Ischebeck Friedrich Gmbh Bohrkrone
AT12096U1 (de) * 2009-12-23 2011-10-15 Dywidag Systems Int Gmbh Bohrkrone zum bohren, insbesondere schlag- oder drehschlagbohren von löchern in boden- oder gesteinsmaterial

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19545648A1 (de) * 1995-12-07 1997-06-12 Hilti Ag Drehschlag-Wendelbohrer
DE19724373A1 (de) * 1997-06-10 1998-12-17 Hilti Ag Gesteinsbohrer
DE19916975A1 (de) 1999-04-15 2000-10-19 Hilti Ag Gesteinsbohrer
DE10053344A1 (de) * 2000-10-27 2002-05-08 Hilti Ag Gesteinsbohrer
DE102008043999A1 (de) * 2008-11-24 2010-05-27 Robert Bosch Gmbh Bohrwerkzeug insbesondere für Bohr- und/oder Meißelgeräte

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1169369A (en) * 1916-01-25 Samuel Peck Drill.
DE865874C (de) * 1941-05-09 1953-02-05 Wengeler & Kalthoff Gesteinschlagbohrer mit hartmetallbestueckter Meisselschneide
DE937101C (de) * 1949-03-11 1955-12-29 Gerhard Kuehne Gesteinsbohrer fuer drehendes Bohren
DE941182C (de) * 1952-03-18 1956-04-05 Wilhelm Steinkopf Schlagbohrkrone fuer Gesteinsbohrer
FR1265943A (fr) * 1960-05-25 1961-07-07 Europ De Turboforage Soc Trépan pour le forage du sol
US3339649A (en) * 1965-01-19 1967-09-05 Atlas Copco Ab Rock drill bits
DE2701044A1 (de) * 1976-01-12 1977-07-21 Reed Tool Co Erdbohrvorrichtung
DE4012772A1 (de) * 1990-04-21 1991-10-24 Westa Werkzeugbau Bohrer fuer bohrhaemmer, insbesondere zum bohren im gestein, beton o. dgl.
DE29611966U1 (de) * 1996-07-10 1997-11-13 Ischebeck Friedrich Gmbh Bohrkrone
AT12096U1 (de) * 2009-12-23 2011-10-15 Dywidag Systems Int Gmbh Bohrkrone zum bohren, insbesondere schlag- oder drehschlagbohren von löchern in boden- oder gesteinsmaterial

Also Published As

Publication number Publication date
EP2775090A2 (de) 2014-09-10
AT13738U1 (de) 2014-07-15

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