IT1053907B - Perfezionamento nelle punte di trivellazione da roccia - Google Patents

Perfezionamento nelle punte di trivellazione da roccia

Info

Publication number
IT1053907B
IT1053907B IT47911/76A IT4791176A IT1053907B IT 1053907 B IT1053907 B IT 1053907B IT 47911/76 A IT47911/76 A IT 47911/76A IT 4791176 A IT4791176 A IT 4791176A IT 1053907 B IT1053907 B IT 1053907B
Authority
IT
Italy
Prior art keywords
improvement
rock drilling
drilling points
points
rock
Prior art date
Application number
IT47911/76A
Other languages
English (en)
Italian (it)
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Application granted granted Critical
Publication of IT1053907B publication Critical patent/IT1053907B/it

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
    • E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by sealing 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
    • E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
    • 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
    • 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
    • F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • 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)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
IT47911/76A 1975-02-27 1976-02-02 Perfezionamento nelle punte di trivellazione da roccia IT1053907B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55376275A 1975-02-27 1975-02-27

Publications (1)

Publication Number Publication Date
IT1053907B true IT1053907B (it) 1981-10-10

Family

ID=24210651

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47911/76A IT1053907B (it) 1975-02-27 1976-02-02 Perfezionamento nelle punte di trivellazione da roccia

Country Status (8)

Country Link
BR (1) BR7601243A (sh)
CA (1) CA1048489A (sh)
DE (1) DE2608205A1 (sh)
FR (1) FR2302408A1 (sh)
GB (1) GB1534445A (sh)
IT (1) IT1053907B (sh)
PL (1) PL100432B1 (sh)
SE (1) SE415380B (sh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386663A (en) * 1981-02-25 1983-06-07 Hughes Tool Company Cooled journal bearing
US5016719A (en) * 1990-01-24 1991-05-21 Western Rock Bit Company Limited Rotary cone type rock bits
GB2365038B (en) * 2000-07-27 2004-06-02 Walker & Co James Ltd Sealing structure for a rock drill bit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075997A (en) * 1935-06-25 1937-04-06 Chicago Pneumatic Tool Co Roller cutter, spindle and bearing assembly for earth boring drills
US3102601A (en) * 1959-04-13 1963-09-03 Phillips Petroleum Co Drill bit
FR1260080A (fr) * 1960-03-22 1961-05-05 Materiel De Forage Soc De Fab Trépan à molettes étanche
US3844363A (en) * 1973-06-11 1974-10-29 E Williams Drill tool

Also Published As

Publication number Publication date
PL100432B1 (pl) 1978-10-31
CA1048489A (en) 1979-02-13
FR2302408B1 (sh) 1982-11-05
SE415380B (sv) 1980-09-29
GB1534445A (en) 1978-12-06
DE2608205A1 (de) 1976-09-09
FR2302408A1 (fr) 1976-09-24
BR7601243A (pt) 1976-09-14
SE7600320L (sv) 1976-08-30

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