SE7904516L - Rullborrkrona med skerrullar - Google Patents

Rullborrkrona med skerrullar

Info

Publication number
SE7904516L
SE7904516L SE7904516A SE7904516A SE7904516L SE 7904516 L SE7904516 L SE 7904516L SE 7904516 A SE7904516 A SE 7904516A SE 7904516 A SE7904516 A SE 7904516A SE 7904516 L SE7904516 L SE 7904516L
Authority
SE
Sweden
Prior art keywords
pin
aperture
cutter
rolling members
cutting rollers
Prior art date
Application number
SE7904516A
Other languages
Unknown language ( )
English (en)
Swedish (sv)
Inventor
H Kunkel
A Olschewski
H M Ernst
M Brandenstein
L Walter
L Lachonius
Original Assignee
Skf Ab
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 Skf Ab, Sandvik Ab filed Critical Skf Ab
Publication of SE7904516L publication Critical patent/SE7904516L/

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
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/06—Placing rolling bodies in cages or bearings
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
SE7904516A 1978-05-31 1979-05-23 Rullborrkrona med skerrullar SE7904516L (sv)

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 (1)

Publication Number Publication Date
SE7904516L true SE7904516L (sv) 1979-12-01

Family

ID=25774595

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7904516A SE7904516L (sv) 1978-05-31 1979-05-23 Rullborrkrona med skerrullar

Country Status (10)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8007104U1 (de) * 1980-03-15 1980-06-12 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Rollenmeissel mit kegeligen schneidrollen
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

Also Published As

Publication number Publication date
PL214440A1 (nl) 1980-03-24
IE48451B1 (en) 1985-01-23
IE791353L (en) 1979-11-30
GB2022170B (en) 1982-06-09
MX147386A (es) 1982-11-26
FR2427460A1 (fr) 1979-12-28
NL7904233A (nl) 1979-12-04
GB2022170A (en) 1979-12-12
IT1166825B (it) 1987-05-06
PL121979B1 (en) 1982-06-30
AU532730B2 (en) 1983-10-13
FR2427460B1 (nl) 1983-12-09
BR7903396A (pt) 1979-12-11
AU4760179A (en) 1979-12-06
IT7922644A0 (it) 1979-05-14

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