GB1521833A - Drill bits - Google Patents

Drill bits

Info

Publication number
GB1521833A
GB1521833A GB31723/76A GB3172376A GB1521833A GB 1521833 A GB1521833 A GB 1521833A GB 31723/76 A GB31723/76 A GB 31723/76A GB 3172376 A GB3172376 A GB 3172376A GB 1521833 A GB1521833 A GB 1521833A
Authority
GB
United Kingdom
Prior art keywords
cutting roller
bearing neck
metal sleeve
bearings
drill bits
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB31723/76A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Camco Drilling Group Ltd
Original Assignee
Reed Tool Co Ltd
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
Priority claimed from US05/604,264 external-priority patent/US3990751A/en
Application filed by Reed Tool Co Ltd filed Critical Reed Tool Co Ltd
Publication of GB1521833A publication Critical patent/GB1521833A/en
Expired legal-status Critical Current

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
    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/18—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with floating brasses or brushing, rotatable at a reduced speed
    • 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
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • 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
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/122—Multilayer structures of sleeves, washers or liners
    • 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)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Earth Drilling (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The roller bit has a bearing neck (16) projecting from the supporting body (12), a cutting roller (18), and bearings (20, 22, 24, 26) for the rotatable mounting of the cutting roller on the bearing neck. A part of the bearings is designed as a hard, tough metal sleeve (22) which is provided with a metal coating having dry-lubricating properties. The metal coating lies between the metal sleeve (22) and the bearing neck (16) as well as between the metal sleeve and the cutting roller (18) in order to avoid seizing. <IMAGE>
GB31723/76A 1975-08-13 1976-07-29 Drill bits Expired GB1521833A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/604,264 US3990751A (en) 1975-08-13 1975-08-13 Drill bit
US05/695,505 US4074922A (en) 1975-08-13 1976-06-11 Drill bit

Publications (1)

Publication Number Publication Date
GB1521833A true GB1521833A (en) 1978-08-16

Family

ID=27084622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31723/76A Expired GB1521833A (en) 1975-08-13 1976-07-29 Drill bits

Country Status (16)

Country Link
JP (1) JPS5222501A (en)
AT (1) AT352052B (en)
AU (1) AU502035B2 (en)
BR (1) BR7605280A (en)
CA (1) CA1039266A (en)
CH (1) CH610982A5 (en)
DE (1) DE2636179A1 (en)
DK (1) DK363976A (en)
ES (1) ES450637A1 (en)
FR (1) FR2321034A1 (en)
GB (1) GB1521833A (en)
IT (1) IT1073442B (en)
MX (1) MX143147A (en)
NL (1) NL7608964A (en)
NO (1) NO762541L (en)
SE (1) SE7609015L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127071A (en) * 1982-09-22 1984-04-04 Reed Rock Bit Co Friction bearing assembly for a roller cutter drill bit
JPS6148612A (en) * 1984-08-14 1986-03-10 マホ　アクチエンゲゼルシャフト Freely adjustable recirculation roller body liner guide

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402617A (en) * 1981-05-12 1983-09-06 Dresser Industries, Inc. Thin wall sintered bushing for a rock bit
DE3207237C2 (en) * 1982-02-25 1984-06-07 Mannesmann AG, 4000 Düsseldorf Threaded connection for oilfield pipes
JPH0533453Y2 (en) * 1989-05-30 1993-08-25
US5016719A (en) * 1990-01-24 1991-05-21 Western Rock Bit Company Limited Rotary cone type rock bits
CA2009987A1 (en) * 1990-02-14 1991-08-14 Kenneth M. White Journal bearing type rock bit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2465329A (en) * 1944-05-20 1949-03-22 Indium Corp America Indium treated copper clad bearing and like articles and method of making the same
US3150901A (en) * 1961-11-17 1964-09-29 Gen Electric Bearing surfaces
US3235316A (en) * 1963-04-22 1966-02-15 Hughes Tool Co Journal bearing with alternating surface areas of wear resistant and antigalling materials
US3784264A (en) * 1971-03-02 1974-01-08 Dresser Ind Earth boring bit bearing system having a pitted bearing surface
US3721307A (en) * 1971-04-27 1973-03-20 Murphy Ind Inc Drill bit bearings
FR2182287A5 (en) * 1972-04-25 1973-12-07 Creusot Loire
US3984158A (en) * 1973-09-10 1976-10-05 Dresser Industries, Inc. Journal and pilot bearings with alternating surface areas of wear resistant and anti-galling materials
US3866987A (en) * 1974-01-14 1975-02-18 Smith International Drill bit with laminated friction bearing
FR2300931A1 (en) * 1975-02-14 1976-09-10 Creusot Loire Antiseizure plain bearings - particularly with double bearing surface in rotary drilling bits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127071A (en) * 1982-09-22 1984-04-04 Reed Rock Bit Co Friction bearing assembly for a roller cutter drill bit
JPS6148612A (en) * 1984-08-14 1986-03-10 マホ　アクチエンゲゼルシャフト Freely adjustable recirculation roller body liner guide
JPS6344968B2 (en) * 1984-08-14 1988-09-07 Maho Ag

Also Published As

Publication number Publication date
ATA601176A (en) 1979-02-15
AU502035B2 (en) 1979-07-12
DK363976A (en) 1977-02-14
AT352052B (en) 1979-08-27
AU1680476A (en) 1978-02-16
BR7605280A (en) 1977-08-09
SE7609015L (en) 1977-02-14
CA1039266A (en) 1978-09-26
CH610982A5 (en) 1979-05-15
FR2321034B1 (en) 1982-10-29
FR2321034A1 (en) 1977-03-11
NO762541L (en) 1977-02-15
IT1073442B (en) 1985-04-17
DE2636179A1 (en) 1977-02-24
NL7608964A (en) 1977-02-15
JPS5222501A (en) 1977-02-19
MX143147A (en) 1981-03-25
ES450637A1 (en) 1977-07-16

Similar Documents

Publication Publication Date Title
GB1521833A (en) Drill bits
SE8207190D0 (en) STOCK COMPOSED OF STOCK SCALE HALF WITH DIFFERENT Eccentricities
GB1511490A (en) Spirit levels in or for attachment to pistol drills and other hand held electric drills
SE7706480L (en) BEARING DEVICE FOR ROTARY DRILL CROWN
ES8203104A1 (en) Hard body, especially hard metal wearing part, and process for its production.
JPS51133127A (en) Abrasion resistant aluminum bronze
GB2035158B (en) Bit for drilling stone
FR2300931A1 (en) Antiseizure plain bearings - particularly with double bearing surface in rotary drilling bits
SE8703399L (en) Chisel device with circular chisel
GB2020379A (en) Bearings
JPS5249914A (en) Sintered alloy having heat resistance and wear resistance for bit to b e used for pening tap hole of blast furnace
SE7907230L (en) INSTALLATIONSHJELPVERKTYG
GB2022170A (en) Roller drill bit
JPS5240410A (en) Tool steel
JPS5224915A (en) Alloy wire for wire dot printer and the production
GB872692A (en) Improvements in and relating to journal bearing housings
JPS5265114A (en) Sintered tool steel having good wear resistance and toughness
GB1439610A (en) Bits for soldering irons
JPS5227005A (en) Hard metal
JPS563119A (en) Coated miniature drill made of hard alloy metal
JPS52103307A (en) Lightweight hard alloy for parts of hot rolling equipment
GB751613A (en) Workpiece journalling member for machine tools
JPS5211116A (en) Alloy tool steel
GB1376036A (en) Bearing assemblies
JPS53120035A (en) Oil-free bearing

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee