SE440253B - Rullborrkrona med koniskt axialrullager - Google Patents

Rullborrkrona med koniskt axialrullager

Info

Publication number
SE440253B
SE440253B SE7907113A SE7907113A SE440253B SE 440253 B SE440253 B SE 440253B SE 7907113 A SE7907113 A SE 7907113A SE 7907113 A SE7907113 A SE 7907113A SE 440253 B SE440253 B SE 440253B
Authority
SE
Sweden
Prior art keywords
roller
conical
bearing
drill bit
pin
Prior art date
Application number
SE7907113A
Other languages
English (en)
Swedish (sv)
Other versions
SE7907113L (sv
Inventor
A Olschewski
L Walter
M Brandenstein
H Kunkel
G Norlander
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
Application filed by Skf Ab, Sandvik Ab filed Critical Skf Ab
Publication of SE7907113L publication Critical patent/SE7907113L/
Publication of SE440253B publication Critical patent/SE440253B/sv

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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/30—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for axial load mainly
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/381—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/545—Systems comprising at least one rolling bearing for radial load in combination with at least one rolling bearing for axial load
    • 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)
  • Rolling Contact Bearings (AREA)
  • Earth Drilling (AREA)
SE7907113A 1978-09-23 1979-08-27 Rullborrkrona med koniskt axialrullager SE440253B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19787828401U DE7828401U1 (de) 1978-09-23 1978-09-23 Rollenmeissel mit mehreren schneidrollen

Publications (2)

Publication Number Publication Date
SE7907113L SE7907113L (sv) 1980-03-24
SE440253B true SE440253B (sv) 1985-07-22

Family

ID=6695410

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7907113A SE440253B (sv) 1978-09-23 1979-08-27 Rullborrkrona med koniskt axialrullager

Country Status (14)

Country Link
US (1) US4255000A (it)
AU (1) AU525444B2 (it)
BR (1) BR7906060A (it)
CA (1) CA1111832A (it)
DE (1) DE7828401U1 (it)
FR (1) FR2436871A1 (it)
GB (1) GB2030619B (it)
IE (1) IE48841B1 (it)
IT (2) IT1212367B (it)
MX (1) MX148248A (it)
NL (1) NL7906899A (it)
PL (1) PL123561B1 (it)
SE (1) SE440253B (it)
ZA (1) ZA793731B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993012320A1 (en) * 1991-12-12 1993-06-24 Sandvik Ab Cutter of a boring head, hub for the cutter and method of manufacturing such a hub

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793719A (en) * 1987-11-18 1988-12-27 Smith International, Inc. Precision roller bearing rock bits
JP2001295576A (ja) * 2000-04-12 2001-10-26 Japan National Oil Corp ビット装置
RU2333341C2 (ru) * 2006-09-04 2008-09-10 Николай Васильевич Грибенников Разборное буровое шарошечное долото с опорами шарошек на подшипниках качения с сепараторами
DE102007013482A1 (de) 2007-03-21 2008-10-09 Ab Skf Kegelrollenlager
WO2008141138A2 (en) * 2007-05-10 2008-11-20 The Timken Company Cutting head bearing arrangement for blast hole drilling machine
RU2351741C1 (ru) * 2007-11-01 2009-04-10 Николай Митрофанович Панин Опора шарошечного долота (варианты)
RU2439278C1 (ru) * 2010-07-29 2012-01-10 Николай Митрофанович Панин Опора шарошечного долота
RU2465427C1 (ru) * 2011-09-26 2012-10-27 Николай Митрофанович Панин Опора шарошечного долота
USD1044437S1 (en) * 2020-06-30 2024-10-01 Husqvarna Ab Brushcutter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673128A (en) * 1949-10-08 1954-03-23 Clarence E Reed Earth-boring drill
US2664322A (en) * 1950-10-09 1953-12-29 Reed Roller Bit Co Roller bit
US3656764A (en) * 1970-08-31 1972-04-18 William P Robinson Drill bit seal assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993012320A1 (en) * 1991-12-12 1993-06-24 Sandvik Ab Cutter of a boring head, hub for the cutter and method of manufacturing such a hub

Also Published As

Publication number Publication date
NL7906899A (nl) 1980-03-25
FR2436871B1 (it) 1983-12-09
GB2030619A (en) 1980-04-10
DE7828401U1 (de) 1979-01-04
MX148248A (es) 1983-03-30
IT1212367B (it) 1989-11-22
IT7924725A0 (it) 1979-07-27
IE791798L (en) 1980-03-23
PL217749A1 (it) 1980-05-19
AU4918679A (en) 1980-04-03
US4255000A (en) 1981-03-10
ZA793731B (en) 1980-07-30
IE48841B1 (en) 1985-05-29
SE7907113L (sv) 1980-03-24
IT7922223V0 (it) 1979-07-27
PL123561B1 (en) 1982-10-30
AU525444B2 (en) 1982-11-04
BR7906060A (pt) 1980-05-27
GB2030619B (en) 1982-08-11
FR2436871A1 (fr) 1980-04-18
CA1111832A (en) 1981-11-03

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