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BR8108441A - Broca de escavacao rotativa - Google Patents

Broca de escavacao rotativa

Info

Publication number
BR8108441A
BR8108441A BR8108441A BR8108441A BR8108441A BR 8108441 A BR8108441 A BR 8108441A BR 8108441 A BR8108441 A BR 8108441A BR 8108441 A BR8108441 A BR 8108441A BR 8108441 A BR8108441 A BR 8108441A
Authority
BR
Brazil
Prior art keywords
rotary excavation
excavation drill
drill
rotary
excavation
Prior art date
Application number
BR8108441A
Other languages
English (en)
Inventor
K Kling
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
Publication of BR8108441A publication Critical patent/BR8108441A/pt

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
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • 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
    • E21B10/08—Roller bits
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles

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)
BR8108441A 1980-04-15 1981-03-30 Broca de escavacao rotativa BR8108441A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8002813A SE8002813L (sv) 1980-04-15 1980-04-15 Lageranordning vid roterande borrkronor
PCT/SE1981/000099 WO1981003045A1 (en) 1980-04-15 1981-03-30 Rotary drill bit

Publications (1)

Publication Number Publication Date
BR8108441A true BR8108441A (pt) 1982-03-09

Family

ID=20340742

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8108441A BR8108441A (pt) 1980-04-15 1981-03-30 Broca de escavacao rotativa

Country Status (4)

Country Link
EP (1) EP0049256A1 (pt)
BR (1) BR8108441A (pt)
SE (1) SE8002813L (pt)
WO (1) WO1981003045A1 (pt)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2058111A1 (de) * 1970-11-26 1972-05-31 Albrecht Lothar Dipl Ing Radial-Waelzlager
US3721307A (en) * 1971-04-27 1973-03-20 Murphy Ind Inc Drill bit bearings
DE2244750A1 (de) * 1972-09-08 1974-03-14 Klaus Degler Radial verstellbares wellen- oder achslager
US3862762A (en) * 1973-02-26 1975-01-28 Parker Hannifin Corp Seal for drill bit bearings
US3923348A (en) * 1974-03-13 1975-12-02 Reed Tool Co Friction bearing
US4035044A (en) * 1976-06-17 1977-07-12 Sadao Miyazaki Bearing assembly
US4176724A (en) * 1977-11-14 1979-12-04 Smith International, Inc. Rotary rock bit and method of making same
NO791605L (no) * 1978-07-24 1980-01-25 Dresser Ind Borkrone.

Also Published As

Publication number Publication date
SE8002813L (sv) 1981-10-16
WO1981003045A1 (en) 1981-10-29
EP0049256A1 (en) 1982-04-14

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