IT1212367B - Scalpello a rulli provvisto di numerosi rulli di taglio. - Google Patents

Scalpello a rulli provvisto di numerosi rulli di taglio.

Info

Publication number
IT1212367B
IT1212367B IT7924725A IT2472579A IT1212367B IT 1212367 B IT1212367 B IT 1212367B IT 7924725 A IT7924725 A IT 7924725A IT 2472579 A IT2472579 A IT 2472579A IT 1212367 B IT1212367 B IT 1212367B
Authority
IT
Italy
Prior art keywords
cutting rollers
roller chisel
numerous cutting
chisel equipped
numerous
Prior art date
Application number
IT7924725A
Other languages
English (en)
Other versions
IT7924725A0 (it
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
Application filed by Sandvik Ab filed Critical Sandvik Ab
Publication of IT7924725A0 publication Critical patent/IT7924725A0/it
Application granted granted Critical
Publication of IT1212367B publication Critical patent/IT1212367B/it

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)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Rolling Contact Bearings (AREA)
  • Earth Drilling (AREA)
IT7924725A 1978-09-23 1979-07-27 Scalpello a rulli provvisto di numerosi rulli di taglio. IT1212367B (it)

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
IT7924725A0 IT7924725A0 (it) 1979-07-27
IT1212367B true IT1212367B (it) 1989-11-22

Family

ID=6695410

Family Applications (2)

Application Number Title Priority Date Filing Date
IT7922223U IT7922223V0 (it) 1978-09-23 1979-07-27 Scalpello a rulli provvisto di numerosi rulli di taglio.
IT7924725A IT1212367B (it) 1978-09-23 1979-07-27 Scalpello a rulli provvisto di numerosi rulli di taglio.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IT7922223U IT7922223V0 (it) 1978-09-23 1979-07-27 Scalpello a rulli provvisto di numerosi rulli di taglio.

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) IT7922223V0 (it)
MX (1) MX148248A (it)
NL (1) NL7906899A (it)
PL (1) PL123561B1 (it)
SE (1) SE440253B (it)
ZA (1) ZA793731B (it)

Families Citing this family (7)

* 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
SE509323C2 (sv) * 1991-12-12 1999-01-11 Sandvik Ab Förfarande för att tillverka ett nav avsett att utgöra en del av en skärrulle
JP2001295576A (ja) * 2000-04-12 2001-10-26 Japan National Oil Corp ビット装置
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
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

Also Published As

Publication number Publication date
AU4918679A (en) 1980-04-03
IE48841B1 (en) 1985-05-29
MX148248A (es) 1983-03-30
GB2030619A (en) 1980-04-10
IT7922223V0 (it) 1979-07-27
PL217749A1 (it) 1980-05-19
ZA793731B (en) 1980-07-30
SE440253B (sv) 1985-07-22
US4255000A (en) 1981-03-10
FR2436871A1 (fr) 1980-04-18
IT7924725A0 (it) 1979-07-27
PL123561B1 (en) 1982-10-30
SE7907113L (sv) 1980-03-24
IE791798L (en) 1980-03-23
NL7906899A (nl) 1980-03-25
AU525444B2 (en) 1982-11-04
CA1111832A (en) 1981-11-03
BR7906060A (pt) 1980-05-27
DE7828401U1 (de) 1979-01-04
FR2436871B1 (it) 1983-12-09
GB2030619B (en) 1982-08-11

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