IT7922223V0 - Scalpello a rulli provvisto di numerosi rulli di taglio. - Google Patents
Scalpello a rulli provvisto di numerosi rulli di taglio.Info
- Publication number
- IT7922223V0 IT7922223V0 IT7922223U IT2222379U IT7922223V0 IT 7922223 V0 IT7922223 V0 IT 7922223V0 IT 7922223 U IT7922223 U IT 7922223U IT 2222379 U IT2222379 U IT 2222379U IT 7922223 V0 IT7922223 V0 IT 7922223V0
- Authority
- IT
- Italy
- Prior art keywords
- cutting rolls
- roller chisel
- numerous cutting
- chisel equipped
- numerous
- Prior art date
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)
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 (1)
Publication Number | Publication Date |
---|---|
IT7922223V0 true IT7922223V0 (it) | 1979-07-27 |
Family
ID=6695410
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT7924725A IT1212367B (it) | 1978-09-23 | 1979-07-27 | Scalpello a rulli provvisto di numerosi rulli di taglio. |
IT7922223U IT7922223V0 (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 |
---|---|---|---|
IT7924725A IT1212367B (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) | IT1212367B (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 (6)
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 |
Family Cites Families (3)
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 |
-
1978
- 1978-09-23 DE DE19787828401U patent/DE7828401U1/de not_active Expired
-
1979
- 1979-07-20 US US06/059,452 patent/US4255000A/en not_active Expired - Lifetime
- 1979-07-20 ZA ZA00793731A patent/ZA793731B/xx unknown
- 1979-07-24 AU AU49186/79A patent/AU525444B2/en not_active Ceased
- 1979-07-26 GB GB7926139A patent/GB2030619B/en not_active Expired
- 1979-07-27 IT IT7924725A patent/IT1212367B/it active
- 1979-07-27 IT IT7922223U patent/IT7922223V0/it unknown
- 1979-08-14 PL PL1979217749A patent/PL123561B1/pl unknown
- 1979-08-27 SE SE7907113A patent/SE440253B/sv not_active IP Right Cessation
- 1979-09-17 NL NL7906899A patent/NL7906899A/nl not_active Application Discontinuation
- 1979-09-19 CA CA335,945A patent/CA1111832A/en not_active Expired
- 1979-09-19 MX MX179339A patent/MX148248A/es unknown
- 1979-09-20 FR FR7923446A patent/FR2436871A1/fr active Granted
- 1979-09-21 IE IE1798/79A patent/IE48841B1/en unknown
- 1979-09-21 BR BR7906060A patent/BR7906060A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
PL217749A1 (it) | 1980-05-19 |
US4255000A (en) | 1981-03-10 |
FR2436871B1 (it) | 1983-12-09 |
BR7906060A (pt) | 1980-05-27 |
FR2436871A1 (fr) | 1980-04-18 |
IT7924725A0 (it) | 1979-07-27 |
IE48841B1 (en) | 1985-05-29 |
CA1111832A (en) | 1981-11-03 |
IE791798L (en) | 1980-03-23 |
SE7907113L (sv) | 1980-03-24 |
AU525444B2 (en) | 1982-11-04 |
GB2030619B (en) | 1982-08-11 |
MX148248A (es) | 1983-03-30 |
DE7828401U1 (de) | 1979-01-04 |
NL7906899A (nl) | 1980-03-25 |
IT1212367B (it) | 1989-11-22 |
AU4918679A (en) | 1980-04-03 |
SE440253B (sv) | 1985-07-22 |
PL123561B1 (en) | 1982-10-30 |
GB2030619A (en) | 1980-04-10 |
ZA793731B (en) | 1980-07-30 |
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