SE7905401L - DRILLING TOOL FOR WORKING MACHINERY - Google Patents

DRILLING TOOL FOR WORKING MACHINERY

Info

Publication number
SE7905401L
SE7905401L SE7905401A SE7905401A SE7905401L SE 7905401 L SE7905401 L SE 7905401L SE 7905401 A SE7905401 A SE 7905401A SE 7905401 A SE7905401 A SE 7905401A SE 7905401 L SE7905401 L SE 7905401L
Authority
SE
Sweden
Prior art keywords
cavity
hole
drilling tool
rock
directed towards
Prior art date
Application number
SE7905401A
Other languages
Swedish (sv)
Other versions
SE429887B (en
Inventor
B V Sudnishnikov
V V Kamensky
E P Varnello
S K Tupitsin
K K Tupitsin
Original Assignee
Inst Gornogo Dela Sibirskogo O
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 Inst Gornogo Dela Sibirskogo O filed Critical Inst Gornogo Dela Sibirskogo O
Priority to SE7905401A priority Critical patent/SE429887B/en
Publication of SE7905401L publication Critical patent/SE7905401L/en
Publication of SE429887B publication Critical patent/SE429887B/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

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

The invention relates to a percussion drill, preferably for an automatic machine for driving holes in rock, comprising a body 7, 16, 22 with, firstly, a cavity 8, 15, 25 opening out at the end surface of the body directed towards the bottom of the hole which is to be driven, secondly, a part 9 intended for breaking up the bottom of the hole and having a ring-shaped cutting edge 10, 19 with a conical inside 11, and, thirdly, channels 12, 24 connecting the cavity to the driven hole, for removal of the broken-up rock from the cavity, and it is characterized in that the cavity 8, 15, 25 has the shape of a cone whose base surface is directed towards the hole bottom and whose inner side is smooth. <IMAGE>
SE7905401A 1979-06-19 1979-06-19 Percussion drill SE429887B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE7905401A SE429887B (en) 1979-06-19 1979-06-19 Percussion drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7905401A SE429887B (en) 1979-06-19 1979-06-19 Percussion drill

Publications (2)

Publication Number Publication Date
SE7905401L true SE7905401L (en) 1980-12-20
SE429887B SE429887B (en) 1983-10-03

Family

ID=20338329

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7905401A SE429887B (en) 1979-06-19 1979-06-19 Percussion drill

Country Status (1)

Country Link
SE (1) SE429887B (en)

Also Published As

Publication number Publication date
SE429887B (en) 1983-10-03

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