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SE0501981L - Tool - Google Patents

Tool

Info

Publication number
SE0501981L
SE0501981L SE0501981A SE0501981A SE0501981L SE 0501981 L SE0501981 L SE 0501981L SE 0501981 A SE0501981 A SE 0501981A SE 0501981 A SE0501981 A SE 0501981A SE 0501981 L SE0501981 L SE 0501981L
Authority
SE
Sweden
Prior art keywords
pilot part
machining means
drill bit
rock machining
pilot
Prior art date
Application number
SE0501981A
Other languages
Swedish (sv)
Other versions
SE530905C2 (en
Inventor
Pierre Ravat
Aimo Helin
Christer Lundberg
Original Assignee
Sandvik Intellectual Property
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 Sandvik Intellectual Property filed Critical Sandvik Intellectual Property
Priority to SE0501981A priority Critical patent/SE530905C2/en
Priority to PCT/SE2006/000780 priority patent/WO2007030049A1/en
Publication of SE0501981L publication Critical patent/SE0501981L/en
Publication of SE530905C2 publication Critical patent/SE530905C2/en

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
    • E21B10/36—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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/004—Bolts held in the borehole by friction all along their length, without additional fixing means

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

The present invention relates to a drill bit (16) and a single pass drilling apparatus (10). The one-piece drill bit (16) has a connection portion, adapted to be rigidly connected to a drill steel, a pilot part (14) and a reamer part (19). The pilot part has first rock machining means (17). The reamer part has a first center line (CL2) and second rock machining means (18A,18B,18C). The second rock machining means is provided axially between said connection portion and said first rock machining means and to one side of the pilot part. The drill bit has a rotational direction (R). The pilot part (14) has a length (L). The pilot part (14) is generally inclined relative to the first center line (CL2). The length (L) of the pilot part (14) is at least 10 mm.
SE0501981A 2005-09-05 2005-09-05 Rock drill bit for single-stage anchor bolts and single-stage drilling equipment SE530905C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0501981A SE530905C2 (en) 2005-09-05 2005-09-05 Rock drill bit for single-stage anchor bolts and single-stage drilling equipment
PCT/SE2006/000780 WO2007030049A1 (en) 2005-09-05 2006-06-26 A one-piece drill bit for single-pass anchor bolting and single pass drilling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0501981A SE530905C2 (en) 2005-09-05 2005-09-05 Rock drill bit for single-stage anchor bolts and single-stage drilling equipment

Publications (2)

Publication Number Publication Date
SE0501981L true SE0501981L (en) 2007-03-06
SE530905C2 SE530905C2 (en) 2008-10-14

Family

ID=37836099

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0501981A SE530905C2 (en) 2005-09-05 2005-09-05 Rock drill bit for single-stage anchor bolts and single-stage drilling equipment

Country Status (2)

Country Link
SE (1) SE530905C2 (en)
WO (1) WO2007030049A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101434244B1 (en) 2007-02-14 2014-08-27 산드빅 인터렉츄얼 프로퍼티 에이비 Drill bit and single drill mechanism
CN101793157B (en) * 2010-03-23 2011-11-30 北京科技大学 Method for supporting filling body

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE472053C (en) * 1925-07-18 1929-02-28 Wlodzimierz Lodzinski Extension drill for deep boreholes
AT389563B (en) * 1988-02-17 1989-12-27 Sulzer Josef Drill bit
US4962822A (en) * 1989-12-15 1990-10-16 Numa Tool Company Downhole drill bit and bit coupling
US5009271A (en) * 1990-07-16 1991-04-23 Milan Maric Drill assembly
US6439326B1 (en) * 2000-04-10 2002-08-27 Smith International, Inc. Centered-leg roller cone drill bit

Also Published As

Publication number Publication date
WO2007030049A1 (en) 2007-03-15
SE530905C2 (en) 2008-10-14

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Legal Events

Date Code Title Description
NUG Patent has lapsed