SE7812689L - Rullborrkrona med flera skerrullar - Google Patents
Rullborrkrona med flera skerrullarInfo
- Publication number
- SE7812689L SE7812689L SE7812689A SE7812689A SE7812689L SE 7812689 L SE7812689 L SE 7812689L SE 7812689 A SE7812689 A SE 7812689A SE 7812689 A SE7812689 A SE 7812689A SE 7812689 L SE7812689 L SE 7812689L
- Authority
- SE
- Sweden
- Prior art keywords
- cutting rollers
- several cutting
- drill crown
- roll
- roll drill
- Prior art date
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
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
-
- 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
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/02—Sliding-contact bearings
- F16C25/04—Sliding-contact bearings self-adjusting
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S384/00—Bearings
- Y10S384/90—Cooling or heating
- Y10S384/902—Porous member
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Sliding-Contact Bearings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2756964A DE2756964C2 (de) | 1977-12-21 | 1977-12-21 | Rollenmeißel mit mehreren Schneidrollen |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7812689L true SE7812689L (sv) | 1979-06-22 |
SE429464B SE429464B (sv) | 1983-09-05 |
Family
ID=6026706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7812689A SE429464B (sv) | 1977-12-21 | 1978-12-11 | Rullborrkrona med flera skerrullar |
Country Status (7)
Country | Link |
---|---|
US (1) | US4206952A (sv) |
JP (1) | JPS5492502A (sv) |
DE (1) | DE2756964C2 (sv) |
FR (1) | FR2412680A1 (sv) |
GB (1) | GB2010941B (sv) |
IT (2) | IT7823346V0 (sv) |
SE (1) | SE429464B (sv) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE429673B (sv) * | 1979-03-19 | 1983-09-19 | Sandvik Ab | Lageranordning vid bergborrkronor |
US4280571A (en) * | 1980-01-24 | 1981-07-28 | Dresser Industries, Inc. | Rock bit |
US4386663A (en) * | 1981-02-25 | 1983-06-07 | Hughes Tool Company | Cooled journal bearing |
US5678929A (en) * | 1996-05-20 | 1997-10-21 | Seagate Technology, Inc. | Grooved hydrodynamic bearing arrangement including a porous lubricant reservoir |
US10260560B2 (en) * | 2013-12-04 | 2019-04-16 | Us Synthetic Corporation | Compact bearing assemblies including superhard bearing surfaces, bearing apparatuses, and methods of use |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1961819A (en) * | 1932-12-15 | 1934-06-05 | Costa John B De | Renewable rotary bit |
US2096252A (en) * | 1934-02-19 | 1937-10-19 | Gen Motors Corp | Method of making a bearing material |
US2104819A (en) * | 1935-03-09 | 1938-01-11 | Hughes Tool Co | Roller boring drill |
US2676790A (en) * | 1948-11-10 | 1954-04-27 | Turner Bits Inc | Rock bit |
US3047344A (en) * | 1959-04-07 | 1962-07-31 | Neyrpic Ets | Drilling tools for turbine drills |
DE1141962B (de) * | 1961-09-28 | 1963-01-03 | Karl Guenther Bechem | Lager fuer Rollenbohrer |
US3235316A (en) * | 1963-04-22 | 1966-02-15 | Hughes Tool Co | Journal bearing with alternating surface areas of wear resistant and antigalling materials |
US3746405A (en) * | 1971-11-18 | 1973-07-17 | Globe Oil Tools Co | Well drilling bit lubrication and seal |
US3984158A (en) * | 1973-09-10 | 1976-10-05 | Dresser Industries, Inc. | Journal and pilot bearings with alternating surface areas of wear resistant and anti-galling materials |
US3866987A (en) * | 1974-01-14 | 1975-02-18 | Smith International | Drill bit with laminated friction bearing |
US3890018A (en) * | 1974-07-19 | 1975-06-17 | Dresser Ind | Rotary rock bit with wiper pad lubrication system |
US3998500A (en) * | 1975-08-28 | 1976-12-21 | Smith International, Inc. | Mountable cone sub assembly |
US4102419A (en) * | 1976-05-10 | 1978-07-25 | Klima Frank J | Rolling cutter drill bit with annular seal rings |
-
1977
- 1977-12-21 DE DE2756964A patent/DE2756964C2/de not_active Expired
-
1978
- 1978-11-21 IT IT7823346U patent/IT7823346V0/it unknown
- 1978-11-21 IT IT29975/78A patent/IT1160251B/it active
- 1978-12-06 GB GB7847409A patent/GB2010941B/en not_active Expired
- 1978-12-06 JP JP15016778A patent/JPS5492502A/ja active Pending
- 1978-12-11 SE SE7812689A patent/SE429464B/sv unknown
- 1978-12-13 US US05/969,092 patent/US4206952A/en not_active Expired - Lifetime
- 1978-12-15 FR FR7835410A patent/FR2412680A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
IT7823346V0 (it) | 1978-11-21 |
DE2756964C2 (de) | 1986-01-30 |
IT1160251B (it) | 1987-03-11 |
GB2010941A (en) | 1979-07-04 |
IT7829975A0 (it) | 1978-11-21 |
SE429464B (sv) | 1983-09-05 |
GB2010941B (en) | 1982-03-31 |
DE2756964A1 (de) | 1979-06-28 |
JPS5492502A (en) | 1979-07-21 |
US4206952A (en) | 1980-06-10 |
FR2412680B1 (sv) | 1984-02-17 |
FR2412680A1 (fr) | 1979-07-20 |
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