ZA793278B - Rotary drill bit - Google Patents

Rotary drill bit

Info

Publication number
ZA793278B
ZA793278B ZA793278A ZA793278A ZA793278B ZA 793278 B ZA793278 B ZA 793278B ZA 793278 A ZA793278 A ZA 793278A ZA 793278 A ZA793278 A ZA 793278A ZA 793278 B ZA793278 B ZA 793278B
Authority
ZA
South Africa
Prior art keywords
drill bit
rotary drill
rotary
bit
drill
Prior art date
Application number
ZA793278A
Other languages
English (en)
Inventor
B Levefelt
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 ZA793278B publication Critical patent/ZA793278B/xx

Links

Classifications

    • 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
    • F16C37/00—Cooling of bearings
    • F16C37/007—Cooling of bearings of rolling bearings
    • 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
    • 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)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Drilling And Boring (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
ZA793278A 1978-07-11 1979-07-02 Rotary drill bit ZA793278B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7807708A SE416746B (sv) 1978-07-11 1978-07-11 Anordning for kylning av rullborrkronor

Publications (1)

Publication Number Publication Date
ZA793278B true ZA793278B (en) 1980-07-30

Family

ID=20335420

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA793278A ZA793278B (en) 1978-07-11 1979-07-02 Rotary drill bit

Country Status (9)

Country Link
US (1) US4272134A (xx)
EP (1) EP0018394B1 (xx)
JP (1) JPS55500410A (xx)
AU (1) AU533034B2 (xx)
CA (1) CA1108118A (xx)
DE (1) DE2963533D1 (xx)
SE (1) SE416746B (xx)
WO (1) WO1980000265A1 (xx)
ZA (1) ZA793278B (xx)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330158A (en) * 1980-10-09 1982-05-18 Dresser Industries, Inc. Rotary rock bit with improved thrust flange
US4451162A (en) * 1982-06-18 1984-05-29 Hughes Tool Company Spaced button thrust surface for earth boring bit
US4749053A (en) * 1986-02-24 1988-06-07 Baker International Corporation Drill bit having a thrust bearing heat sink
US4981182A (en) * 1990-01-26 1991-01-01 Dresser Industries, Inc. Sealed rotary blast hole drill bit utilizing air pressure for seal protection
US5513711A (en) * 1994-08-31 1996-05-07 Williams; Mark E. Sealed and lubricated rotary cone drill bit having improved seal protection
US5513715A (en) * 1994-08-31 1996-05-07 Dresser Industries, Inc. Flat seal for a roller cone rock bit
US5441120A (en) * 1994-08-31 1995-08-15 Dresser Industries, Inc. Roller cone rock bit having a sealing system with double elastomer seals
US5636700A (en) * 1995-01-03 1997-06-10 Dresser Industries, Inc. Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction
US5709278A (en) * 1996-01-22 1998-01-20 Dresser Industries, Inc. Rotary cone drill bit with contoured inserts and compacts
US5722497A (en) * 1996-03-21 1998-03-03 Dresser Industries, Inc. Roller cone gage surface cutting elements with multiple ultra hard cutting surfaces
US6170582B1 (en) * 1999-07-01 2001-01-09 Smith International, Inc. Rock bit cone retention system
US6533051B1 (en) 1999-09-07 2003-03-18 Smith International, Inc. Roller cone drill bit shale diverter
EP1829153A1 (en) 2004-12-22 2007-09-05 Telefonaktiebolaget LM Ericsson (publ) An arrangement relating to antenna communication
US8337085B2 (en) * 2009-05-06 2012-12-25 Sandvik Intellectual Property Ab Air circulation ports in rotary rock bit journal bearing
WO2014092720A1 (en) 2012-12-14 2014-06-19 Atlas Copco Secoroc Llc Rotary drill bit
DE102014216313A1 (de) * 2014-08-18 2016-02-18 Schaeffler Technologies AG & Co. KG Lagerring und Verfahren zur Herstellung eines Lagerrings
CN205135423U (zh) * 2015-12-08 2016-04-06 苏州新锐合金工具股份有限公司 具有强力保护牙轮壳体的三牙轮钻头

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2086681A (en) * 1936-02-29 1937-07-13 Hughes Tool Co Cutter bearing
US2654577A (en) * 1947-09-26 1953-10-06 Engineering Lab Inc Drill bit
US3534823A (en) * 1969-02-28 1970-10-20 Murphy Ind Inc G W Drill bit
US3788408A (en) * 1970-04-20 1974-01-29 Dresser Ind Rock bit water deflector and separator
US3921735A (en) * 1975-02-27 1975-11-25 Dresser Ind Rotary rock bit with cone mouth air screen
US4136748A (en) * 1977-11-07 1979-01-30 The Timken Company Roller-type rock bit and bearing arrangement therefor

Also Published As

Publication number Publication date
DE2963533D1 (en) 1982-10-07
CA1108118A (en) 1981-09-01
AU4878179A (en) 1980-01-17
SE416746B (sv) 1981-02-02
EP0018394B1 (en) 1982-08-11
EP0018394A1 (en) 1980-11-12
JPS55500410A (xx) 1980-07-10
AU533034B2 (en) 1983-10-27
WO1980000265A1 (en) 1980-02-21
US4272134A (en) 1981-06-09
SE7807708L (sv) 1980-01-12

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