SE8008430L - Bergborrkrona - Google Patents

Bergborrkrona

Info

Publication number
SE8008430L
SE8008430L SE8008430A SE8008430A SE8008430L SE 8008430 L SE8008430 L SE 8008430L SE 8008430 A SE8008430 A SE 8008430A SE 8008430 A SE8008430 A SE 8008430A SE 8008430 L SE8008430 L SE 8008430L
Authority
SE
Sweden
Prior art keywords
bearing
drill bit
seal
gap
purposes
Prior art date
Application number
SE8008430A
Other languages
English (en)
Inventor
L Karlsson
G Norlander
Original Assignee
Sandvik Ab
Skf 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, Skf Ab filed Critical Sandvik Ab
Priority to SE8008430A priority Critical patent/SE8008430L/sv
Priority to PCT/SE1981/000278 priority patent/WO1982001909A1/en
Priority to EP81902720A priority patent/EP0065524A1/en
Priority to ZA816742A priority patent/ZA816742B/xx
Priority to AU75916/81A priority patent/AU7591681A/en
Priority to BR8107552A priority patent/BR8107552A/pt
Publication of SE8008430L publication Critical patent/SE8008430L/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
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by 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
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2352/00—Apparatus for drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
SE8008430A 1980-12-02 1980-12-02 Bergborrkrona SE8008430L (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8008430A SE8008430L (sv) 1980-12-02 1980-12-02 Bergborrkrona
PCT/SE1981/000278 WO1982001909A1 (en) 1980-12-02 1981-09-24 Rotary drill bit
EP81902720A EP0065524A1 (en) 1980-12-02 1981-09-24 Rotary drill bit
ZA816742A ZA816742B (en) 1980-12-02 1981-09-29 Rotary drill bit
AU75916/81A AU7591681A (en) 1980-12-02 1981-09-30 Rotary drill bit
BR8107552A BR8107552A (pt) 1980-12-02 1981-11-20 Broca rotativa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8008430A SE8008430L (sv) 1980-12-02 1980-12-02 Bergborrkrona

Publications (1)

Publication Number Publication Date
SE8008430L true SE8008430L (sv) 1982-06-03

Family

ID=20342374

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8008430A SE8008430L (sv) 1980-12-02 1980-12-02 Bergborrkrona

Country Status (6)

Country Link
EP (1) EP0065524A1 (sv)
AU (1) AU7591681A (sv)
BR (1) BR8107552A (sv)
SE (1) SE8008430L (sv)
WO (1) WO1982001909A1 (sv)
ZA (1) ZA816742B (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516640A (en) * 1983-12-08 1985-05-14 Santrade Ltd. Rotary drill bit
SE516079C2 (sv) * 1998-12-18 2001-11-12 Sandvik Ab Rullborrkrona
WO2011075094A1 (ru) * 2009-12-14 2011-06-23 Kupchinsky Igor Aleksandrovich Устройство изоляции подшипниковой опоры бурового долота от окружающей среды

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921735A (en) * 1975-02-27 1975-11-25 Dresser Ind Rotary rock bit with cone mouth air screen
NL7609328A (nl) * 1976-08-23 1978-02-27 Skf Ind Trading & Dev Rolbeitel.
SE7703810L (sv) * 1977-04-01 1978-10-02 Sandvik Ab Tetningsanordning vid rullborrkronor
SE428139B (sv) * 1979-03-28 1983-06-06 Sandvik Ab Bergborrkrona

Also Published As

Publication number Publication date
ZA816742B (en) 1982-09-29
BR8107552A (pt) 1982-08-17
AU7591681A (en) 1982-06-10
WO1982001909A1 (en) 1982-06-10
EP0065524A1 (en) 1982-12-01

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