FR2427460A1 - Trepans a molettes avec molettes montees par roulements radiaux sur un tourillon relie au corps du trepan - Google Patents

Trepans a molettes avec molettes montees par roulements radiaux sur un tourillon relie au corps du trepan

Info

Publication number
FR2427460A1
FR2427460A1 FR7913881A FR7913881A FR2427460A1 FR 2427460 A1 FR2427460 A1 FR 2427460A1 FR 7913881 A FR7913881 A FR 7913881A FR 7913881 A FR7913881 A FR 7913881A FR 2427460 A1 FR2427460 A1 FR 2427460A1
Authority
FR
France
Prior art keywords
trepan
radial bearings
wheels mounted
journal
trunk connected
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.)
Granted
Application number
FR7913881A
Other languages
English (en)
Other versions
FR2427460B1 (fr
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.)
Sandvik AB
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
Priority claimed from DE2823698A external-priority patent/DE2823698C2/de
Priority claimed from DE19782841971 external-priority patent/DE2841971A1/de
Application filed by Sandvik AB filed Critical Sandvik AB
Publication of FR2427460A1 publication Critical patent/FR2427460A1/fr
Application granted granted Critical
Publication of FR2427460B1 publication Critical patent/FR2427460B1/fr
Granted 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
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
    • 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
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/06—Placing rolling bodies in cages or 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)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Rolling Contact Bearings (AREA)
  • Earth Drilling (AREA)
  • Gripping On Spindles (AREA)

Abstract

Trépan à molettes dont chaque molette est montée sur un tourillon du corps de trépan par au moins un roulement radial dont les éléments roulants sont guidés latéralement, au moins à leur extrémité tournée vers le corps de trépan, dans une gorge extérieure ménagée dans l'alésage de la molette. Une gorge intérieure 10 est ménagée dans le tourillon 3 pour les éléments roulants 7 du roulement radial 4 et un trou axial 12 d'introduction des éléments roulants 7, fermé par une pièce de remplissage 13, est ménagé dans le tourillon 3 et le corps de trépan 2 de manière à déboucher dans la gorge intérieure 10.
FR7913881A 1978-05-31 1979-05-30 Trepans a molettes avec molettes montees par roulements radiaux sur un tourillon relie au corps du trepan Granted FR2427460A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2823698A DE2823698C2 (de) 1978-05-31 1978-05-31 Rollenmeißel mit einem Einfülloch für Lagerrollen
DE19782841971 DE2841971A1 (de) 1978-09-27 1978-09-27 Rollenmeissel mit schneidrollen

Publications (2)

Publication Number Publication Date
FR2427460A1 true FR2427460A1 (fr) 1979-12-28
FR2427460B1 FR2427460B1 (fr) 1983-12-09

Family

ID=25774595

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913881A Granted FR2427460A1 (fr) 1978-05-31 1979-05-30 Trepans a molettes avec molettes montees par roulements radiaux sur un tourillon relie au corps du trepan

Country Status (10)

Country Link
AU (1) AU532730B2 (fr)
BR (1) BR7903396A (fr)
FR (1) FR2427460A1 (fr)
GB (1) GB2022170B (fr)
IE (1) IE48451B1 (fr)
IT (1) IT1166825B (fr)
MX (1) MX147386A (fr)
NL (1) NL7904233A (fr)
PL (1) PL121979B1 (fr)
SE (1) SE7904516L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478235A1 (fr) * 1980-03-15 1981-09-18 Skf Kugellagerfabriken Gmbh Tricone a molettes coniques

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552233A (en) * 1982-09-30 1985-11-12 Warren A. Sturm Rotary drill bit seal
US6196339B1 (en) 1995-12-19 2001-03-06 Smith International, Inc. Dual-seal drill bit pressure communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478235A1 (fr) * 1980-03-15 1981-09-18 Skf Kugellagerfabriken Gmbh Tricone a molettes coniques

Also Published As

Publication number Publication date
AU4760179A (en) 1979-12-06
BR7903396A (pt) 1979-12-11
PL121979B1 (en) 1982-06-30
GB2022170A (en) 1979-12-12
AU532730B2 (en) 1983-10-13
IT7922644A0 (it) 1979-05-14
IT1166825B (it) 1987-05-06
FR2427460B1 (fr) 1983-12-09
IE791353L (en) 1979-11-30
SE7904516L (sv) 1979-12-01
IE48451B1 (en) 1985-01-23
GB2022170B (en) 1982-06-09
MX147386A (es) 1982-11-26
PL214440A1 (fr) 1980-03-24
NL7904233A (nl) 1979-12-04

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Legal Events

Date Code Title Description
ST Notification of lapse