SE9802686D0 - Rock drilling tools - Google Patents

Rock drilling tools

Info

Publication number
SE9802686D0
SE9802686D0 SE9802686A SE9802686A SE9802686D0 SE 9802686 D0 SE9802686 D0 SE 9802686D0 SE 9802686 A SE9802686 A SE 9802686A SE 9802686 A SE9802686 A SE 9802686A SE 9802686 D0 SE9802686 D0 SE 9802686D0
Authority
SE
Sweden
Prior art keywords
drill
drill rods
piece
rods
axial direction
Prior art date
Application number
SE9802686A
Other languages
Swedish (sv)
Other versions
SE9802686L (en
Inventor
Daniel Lindgren
Original Assignee
Sandvik Ab
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 Ab filed Critical Sandvik Ab
Priority to SE9802686A priority Critical patent/SE9802686L/en
Publication of SE9802686D0 publication Critical patent/SE9802686D0/en
Publication of SE9802686L publication Critical patent/SE9802686L/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers

Landscapes

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

Abstract

External grooves (17) in the guide sections (10) of the drill rods (5) extend helically in the drill rod axial direction. DETAILED DESCRIPTION - A rock drill (1) for impact drilling comprises a piece (3) with rock removing parts, a neck adaptor (7), and at least one drill rods extending between the piece and adaptor. The drill rods are releasably connected at one end to adjacent drill parts and integral guides (are provided in the drill rods next to the piece. A shock absorbing section (13) is formed between the piece and the nearby ends of the drill rods. External grooves in the guides extend helically in the axial direction of the drill rods. An INDEPENDENT CLAIM is also included for the drill rods.
SE9802686A 1998-08-07 1998-08-07 Rock drilling tools SE9802686L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9802686A SE9802686L (en) 1998-08-07 1998-08-07 Rock drilling tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9802686A SE9802686L (en) 1998-08-07 1998-08-07 Rock drilling tools

Publications (2)

Publication Number Publication Date
SE9802686D0 true SE9802686D0 (en) 1998-08-07
SE9802686L SE9802686L (en) 2000-02-08

Family

ID=20412213

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9802686A SE9802686L (en) 1998-08-07 1998-08-07 Rock drilling tools

Country Status (1)

Country Link
SE (1) SE9802686L (en)

Also Published As

Publication number Publication date
SE9802686L (en) 2000-02-08

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