IT1142789B - Perfezionamento negli scalpelli rotativi per trivellazioni e simili - Google Patents

Perfezionamento negli scalpelli rotativi per trivellazioni e simili

Info

Publication number
IT1142789B
IT1142789B IT49013/81A IT4901381A IT1142789B IT 1142789 B IT1142789 B IT 1142789B IT 49013/81 A IT49013/81 A IT 49013/81A IT 4901381 A IT4901381 A IT 4901381A IT 1142789 B IT1142789 B IT 1142789B
Authority
IT
Italy
Prior art keywords
drilling
improvement
similar
chisels
rotary
Prior art date
Application number
IT49013/81A
Other languages
English (en)
Other versions
IT8149013A0 (it
Inventor
D F Walters
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of IT8149013A0 publication Critical patent/IT8149013A0/it
Application granted granted Critical
Publication of IT1142789B publication Critical patent/IT1142789B/it

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
    • E21B10/22—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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • 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)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical & Material Sciences (AREA)
  • Earth Drilling (AREA)
  • Sliding-Contact Bearings (AREA)
IT49013/81A 1980-10-09 1981-07-30 Perfezionamento negli scalpelli rotativi per trivellazioni e simili IT1142789B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/195,469 US4330158A (en) 1980-10-09 1980-10-09 Rotary rock bit with improved thrust flange

Publications (2)

Publication Number Publication Date
IT8149013A0 IT8149013A0 (it) 1981-07-30
IT1142789B true IT1142789B (it) 1986-10-15

Family

ID=22721538

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49013/81A IT1142789B (it) 1980-10-09 1981-07-30 Perfezionamento negli scalpelli rotativi per trivellazioni e simili

Country Status (8)

Country Link
US (1) US4330158A (it)
JP (1) JPS5771991A (it)
BR (1) BR8105529A (it)
CA (1) CA1162183A (it)
FR (1) FR2491990A1 (it)
GB (1) GB2085049B (it)
IT (1) IT1142789B (it)
NL (1) NL8103709A (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757806A (en) * 1981-10-08 1988-07-19 Muchisky Thomas P Portable massage unit
US5188462A (en) * 1990-03-02 1993-02-23 Smith International Inc. Lubricant system for a rotary cone rock bit
US5265964A (en) * 1990-03-02 1993-11-30 Smith International, Inc. Lubricant system for a rotary cone rock bit
EP0508001A1 (en) * 1991-04-08 1992-10-14 Smith International, Inc. Lubricant system for a rotary cone rock bit
KR100402249B1 (ko) * 1997-12-30 2004-01-24 주식회사 하이닉스반도체 반도체장치제조방법
WO1999039075A1 (en) * 1998-01-30 1999-08-05 Dresser Industries, Inc. Rotary cone drill bit having a ball plug weld with hardfacing
US20070014495A1 (en) * 2005-07-15 2007-01-18 Baker Hughes Incorporated System, method, and apparatus for reducing residual stress in as-welded roller cone bit ball plug welds
US8961019B2 (en) 2011-05-10 2015-02-24 Smith International, Inc. Flow control through thrust bearing assembly
DE102018005972A1 (de) * 2018-07-20 2020-01-23 Hydac Technology Gmbh Schneidrolle

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235316A (en) * 1963-04-22 1966-02-15 Hughes Tool Co Journal bearing with alternating surface areas of wear resistant and antigalling materials
US3721307A (en) * 1971-04-27 1973-03-20 Murphy Ind Inc Drill bit bearings
US3995917A (en) * 1973-11-23 1976-12-07 Smith International, Inc. Aluminum bronze bearing
US3866987A (en) * 1974-01-14 1975-02-18 Smith International Drill bit with laminated friction bearing
FR2300931A1 (fr) * 1975-02-14 1976-09-10 Creusot Loire Palier lisse
SE396982C (sv) * 1976-02-16 1980-12-15 Fagersta Secoroc Ab Glid- och trycklageranordning
US4061376A (en) * 1976-06-14 1977-12-06 Smith International Inc. Rock bit bearing structure
SE416746B (sv) * 1978-07-11 1981-02-02 Sandvik Ab Anordning for kylning av rullborrkronor
GB2034786A (en) * 1978-11-20 1980-06-11 Dresser Ind Earth boring bit
US4252383A (en) * 1980-05-23 1981-02-24 Dresser Industries, Inc. Earth boring bit with eccentrically formed bearing surface

Also Published As

Publication number Publication date
JPS5771991A (en) 1982-05-06
FR2491990A1 (fr) 1982-04-16
FR2491990B1 (it) 1985-01-11
US4330158A (en) 1982-05-18
GB2085049B (en) 1984-07-25
GB2085049A (en) 1982-04-21
CA1162183A (en) 1984-02-14
NL8103709A (nl) 1982-05-03
IT8149013A0 (it) 1981-07-30
BR8105529A (pt) 1982-05-18

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