SE429888B - Bergborr med utskjutande borrhuvudspets - Google Patents

Bergborr med utskjutande borrhuvudspets

Info

Publication number
SE429888B
SE429888B SE7812674A SE7812674A SE429888B SE 429888 B SE429888 B SE 429888B SE 7812674 A SE7812674 A SE 7812674A SE 7812674 A SE7812674 A SE 7812674A SE 429888 B SE429888 B SE 429888B
Authority
SE
Sweden
Prior art keywords
drill
cutting
cemented carbide
tip
rock
Prior art date
Application number
SE7812674A
Other languages
English (en)
Swedish (sv)
Other versions
SE7812674L (sv
Inventor
H Pietsch
K Steinkuhler
Original Assignee
Krupp 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 Krupp Gmbh filed Critical Krupp Gmbh
Publication of SE7812674L publication Critical patent/SE7812674L/xx
Publication of SE429888B publication Critical patent/SE429888B/sv

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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • 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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B10/46—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
    • 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
    • E21B10/56—Button-type inserts

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)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
SE7812674A 1977-12-21 1978-12-08 Bergborr med utskjutande borrhuvudspets SE429888B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2756990A DE2756990C2 (de) 1977-12-21 1977-12-21 Gesteinsbohrer

Publications (2)

Publication Number Publication Date
SE7812674L SE7812674L (sv) 1979-06-22
SE429888B true SE429888B (sv) 1983-10-03

Family

ID=6026722

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7812674A SE429888B (sv) 1977-12-21 1978-12-08 Bergborr med utskjutande borrhuvudspets

Country Status (5)

Country Link
AT (1) AT383182B (de)
DE (1) DE2756990C2 (de)
FR (1) FR2412392A1 (de)
GB (1) GB2011286B (de)
SE (1) SE429888B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856205A1 (de) * 1978-12-27 1980-07-10 Hilti Ag Gesteinsbohrer
SE459680B (sv) * 1984-10-01 1989-07-24 Santrade Ltd Borrstaal
DE4102794A1 (de) * 1991-01-31 1992-08-06 Hawera Probst Kg Hartmetall Bohrwerkzeug
DE4236553A1 (de) * 1992-10-29 1994-05-05 Hawera Probst Kg Hartmetall Gesteinsbohrer
DE4407119A1 (de) * 1993-12-11 1995-06-14 Hawera Probst Kg Hartmetall Gesteinsbohrer
AU1542601A (en) * 1999-11-26 2001-06-04 Anglo Operations Limited Rotary drill bit insert
GB2479146A (en) * 2010-03-30 2011-10-05 Paul James Bentley Hole cutter
PL2990589T3 (pl) * 2014-08-25 2017-10-31 Sandvik Intellectual Property Ab Świder z zagłębioną powierzchnią tnącą
CN108104723B (zh) * 2018-02-11 2023-11-03 上海广大基础工程有限公司 一种钻具

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1809351A (en) * 1929-06-26 1931-06-09 Roland R Crum Drilling bit
FR1154010A (fr) * 1955-06-17 1958-04-01 Hellefors Bruks Aktiebolag Perfectionnements aux foreuses au rocher
FR1219604A (fr) * 1958-04-01 1960-05-18 Uddeholms Ab Couronne de fleuret à percussion
US3074703A (en) * 1960-02-24 1963-01-22 Salem Tool Co Lump producing head for coal augering
DE2035261A1 (de) * 1970-07-16 1972-01-27 Karnebogen, Richard 5891 Vollme Schlagbohrkrone zum Bohren von Gestein u dgl
DE2129913A1 (de) * 1971-06-16 1972-12-21 Hilti Ag Gesteinsbohrer
AT321207B (de) * 1972-11-15 1975-03-25 Boehler & Co Ag Geb Bohrverfahren und Vorrichtung zu seiner Durchführung
DE2414354A1 (de) * 1974-03-26 1975-10-16 Heller Geb Gesteinsbohrer
DE2423510A1 (de) * 1974-05-15 1975-11-27 Krupp Gmbh Gesteinsbohrer
US3955635A (en) * 1975-02-03 1976-05-11 Skidmore Sam C Percussion drill bit
DE2528003A1 (de) * 1975-06-24 1977-01-20 Krupp Gmbh Gesteinsbohrer
DE2602238A1 (de) * 1976-01-22 1977-08-04 Bosch Gmbh Robert Bohrkrone

Also Published As

Publication number Publication date
ATA898878A (de) 1980-08-15
FR2412392A1 (fr) 1979-07-20
GB2011286B (en) 1982-02-24
AT383182B (de) 1987-05-25
FR2412392B1 (de) 1984-09-28
DE2756990A1 (de) 1979-06-28
DE2756990C2 (de) 1986-03-27
SE7812674L (sv) 1979-06-22
GB2011286A (en) 1979-07-11

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