GB2006665A - High frequency percussive rock drill - Google Patents

High frequency percussive rock drill

Info

Publication number
GB2006665A
GB2006665A GB7839017A GB7839017A GB2006665A GB 2006665 A GB2006665 A GB 2006665A GB 7839017 A GB7839017 A GB 7839017A GB 7839017 A GB7839017 A GB 7839017A GB 2006665 A GB2006665 A GB 2006665A
Authority
GB
United Kingdom
Prior art keywords
bit
high frequency
rock drill
low energy
percussive rock
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB7839017A
Other versions
GB2006665B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of GB2006665A publication Critical patent/GB2006665A/en
Application granted granted Critical
Publication of GB2006665B publication Critical patent/GB2006665B/en
Expired legal-status Critical Current

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
    • 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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill 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
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

A rock drill system uses a high frequency, low energy per blow percussive drill device to drive a rock drill bit having a cylindrical sleeve and a breaking bar within the sleeve adjacent the cutting edge of the bit. The bit is operated without rotation and the low energy, high frequency enables operation without destroying the bit. A peening effect occurs around the outer circumference of the drilling end of the bit to create a slightly larger diameter than the diameter of the bit thereby enabling easy withdrawal from the hole. <IMAGE>
GB7839017A 1977-10-25 1978-10-03 Rock drill Expired GB2006665B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84528377A 1977-10-25 1977-10-25

Publications (2)

Publication Number Publication Date
GB2006665A true GB2006665A (en) 1979-05-10
GB2006665B GB2006665B (en) 1982-07-14

Family

ID=25294856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7839017A Expired GB2006665B (en) 1977-10-25 1978-10-03 Rock drill

Country Status (7)

Country Link
JP (1) JPS54109001A (en)
CA (1) CA1101408A (en)
DE (1) DE2846022A1 (en)
FR (1) FR2412679A1 (en)
GB (1) GB2006665B (en)
SE (1) SE440114B (en)
ZA (1) ZA785434B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1931853A1 (en) * 2005-10-07 2008-06-18 Sandvik Mining and Construction Oy Method and rock drilling rig for hole drilling
CN117646598A (en) * 2024-01-30 2024-03-05 陕西延长石油矿业有限责任公司 Mine-based two-stage drilling device and application method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1928451A (en) * 1931-12-09 1933-09-26 Hammerberg George Rotary drill bit
GB620004A (en) * 1947-01-01 1949-03-17 Gen Electric Co Ltd Improvements in and relating to vibratory tools
US2854219A (en) * 1954-11-22 1958-09-30 Alvin S Macneil Apparatus for deep well drilling
AT242579B (en) * 1962-11-03 1965-09-27 Artur Fischer Process for the production of a hard metal drill, in particular for drilling in hard material such as concrete or stone
FR1374214A (en) * 1963-11-15 1964-10-02 Diamant Boart Sa Method and machine for boring or drilling a soil
FR1395215A (en) * 1964-04-30 1965-04-09 Gardner Denver Co Drilling tool and its manufacturing process
FR1500742A (en) * 1966-11-21 1967-11-03 Method and apparatus for drilling by acoustic vibrations and alternating rotations
AU408715B2 (en) * 1966-12-02 1970-12-04 ERIC CLIFFORD BRAUMANN, FREDERICK WILLIAM REICHELT and CHARLES BRUCE HOPE Anew and improved drilling unit
DE2558842A1 (en) * 1975-12-27 1977-07-07 Paul Schmidt SELF-DRIVEN PNEUMATIC RAM DRILL, IN PARTICULAR FOR EARTH DRILLS
DE2642133A1 (en) * 1976-09-18 1978-03-23 Ruhrkohle Ag Rotary and impact borehole drill operating system - varies frequency and amplitude to reduce power loss and noise (BE 20.3.78)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1931853A1 (en) * 2005-10-07 2008-06-18 Sandvik Mining and Construction Oy Method and rock drilling rig for hole drilling
EP1931853A4 (en) * 2005-10-07 2014-10-22 Sandvik Mining & Constr Oy Method and rock drilling rig for hole drilling
CN117646598A (en) * 2024-01-30 2024-03-05 陕西延长石油矿业有限责任公司 Mine-based two-stage drilling device and application method thereof
CN117646598B (en) * 2024-01-30 2024-04-12 陕西延长石油矿业有限责任公司 Mine-based two-stage drilling device and application method thereof

Also Published As

Publication number Publication date
SE440114B (en) 1985-07-15
ZA785434B (en) 1979-09-26
GB2006665B (en) 1982-07-14
CA1101408A (en) 1981-05-19
DE2846022A1 (en) 1979-04-26
FR2412679A1 (en) 1979-07-20
SE7811060L (en) 1979-04-26
JPS54109001A (en) 1979-08-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee