NO941375L - Borkrone - Google Patents

Borkrone

Info

Publication number
NO941375L
NO941375L NO941375A NO941375A NO941375L NO 941375 L NO941375 L NO 941375L NO 941375 A NO941375 A NO 941375A NO 941375 A NO941375 A NO 941375A NO 941375 L NO941375 L NO 941375L
Authority
NO
Norway
Prior art keywords
bearing shaft
drill bit
cutter
seal
main body
Prior art date
Application number
NO941375A
Other languages
English (en)
Other versions
NO941375D0 (no
Inventor
Danny E Scott
Original Assignee
Baker Hughes Inc
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 Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of NO941375D0 publication Critical patent/NO941375D0/no
Publication of NO941375L publication Critical patent/NO941375L/no

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
    • 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
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3436—Pressing means
    • F16J15/344—Pressing means the pressing force being applied by means of an elastic ring supporting the slip-ring

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

Borkrone (11) omfatter en hoveddel (13), minst en ut- kraget lageraksel (31) innbefattende en basis (43) og en sylindrisk glidelager-flate (37) som strekker seg innad og nedad fra hoveddelen, og minst en kutter som er montert for rotasjon på lagerakselens (31) sylindriske glidelagerflate (37). En tetningsenhet (42) er anordnet mellom den sylindris- ke glidelager-flate (37) og kutteren (33) nær den utkragete lageraksels (31) basis (43) . Tetningsenheten (42) omfatter minst en stiv tethingsring (60) med en tetnings-endeflate (56) i anlegg mot en andre tetnings-endeflate (58). Minst en av tetnings-endeflåtene (56, 58) er i det minste delvis utformet av et ekstra hardt, abrasjonsfast materiale med en slitefast- het som er større enn, og en glidefriksjons-koeffisient som er mindre enn, den til det stive tetningsring-materiale.
NO941375A 1993-04-16 1994-04-15 Borkrone NO941375L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4886393A 1993-04-16 1993-04-16

Publications (2)

Publication Number Publication Date
NO941375D0 NO941375D0 (no) 1994-04-15
NO941375L true NO941375L (no) 1994-10-17

Family

ID=21956860

Family Applications (1)

Application Number Title Priority Date Filing Date
NO941375A NO941375L (no) 1993-04-16 1994-04-15 Borkrone

Country Status (3)

Country Link
GB (1) GB2278865B (no)
IT (1) IT1274260B (no)
NO (1) NO941375L (no)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472058A (en) * 1994-04-20 1995-12-05 Smith International, Inc. Rock bit with mechanical seal
GB9411228D0 (en) * 1994-06-04 1994-07-27 Camco Drilling Group Ltd A modulated bias unit for rotary drilling
US5791421A (en) * 1996-08-06 1998-08-11 Baker Hughes Incorporated Optimal material pair for metal face seal in earth-boring bits
US6684966B2 (en) 2001-10-18 2004-02-03 Baker Hughes Incorporated PCD face seal for earth-boring bit
US7234541B2 (en) 2002-08-19 2007-06-26 Baker Hughes Incorporated DLC coating for earth-boring bit seal ring
WO2008131095A2 (en) * 2007-04-17 2008-10-30 Baker Hughes Incorporated Elastomer material for high temperature roller cone bits
CN101806195A (zh) 2010-03-09 2010-08-18 江汉石油钻头股份有限公司 一种用于高转速钻井的三牙轮钻头
DE202018100532U1 (de) * 2018-01-31 2018-03-09 Schöning Gmbh Vorrichtung für Offshore-Arbeiten mit einem Getriebemotor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335497B1 (en) * 1988-03-31 1993-04-14 Smith International, Inc. Metal-to-metal face seal for rock bits

Also Published As

Publication number Publication date
GB2278865A (en) 1994-12-14
ITTO940301A0 (it) 1994-04-15
ITTO940301A1 (it) 1995-10-15
GB2278865B (en) 1996-06-26
GB9407359D0 (en) 1994-06-08
IT1274260B (it) 1997-07-17
NO941375D0 (no) 1994-04-15

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