GB1359717A - Rock drill - Google Patents

Rock drill

Info

Publication number
GB1359717A
GB1359717A GB3501771A GB3501771A GB1359717A GB 1359717 A GB1359717 A GB 1359717A GB 3501771 A GB3501771 A GB 3501771A GB 3501771 A GB3501771 A GB 3501771A GB 1359717 A GB1359717 A GB 1359717A
Authority
GB
United Kingdom
Prior art keywords
piston
chamber
splines
drill
july
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.)
Expired
Application number
GB3501771A
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.)
Joy Manufacturing Co
Original Assignee
Joy Manufacturing 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 Joy Manufacturing Co filed Critical Joy Manufacturing Co
Publication of GB1359717A publication Critical patent/GB1359717A/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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
    • E21B6/08—Separate drives for percussion and rotation
    • 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
    • E21B1/00—Percussion drilling
    • E21B1/12—Percussion drilling with a reciprocating impulse member
    • E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
    • E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure

Landscapes

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

Abstract

1359717 Percussive drills JOY MFG CO 26 July 1971 [29 July 1970] 35017/71 Heading B4C [Also in Division B3] A rock drill comprises a reciprocable hammer piston 14, an annular chamber 70 to which pressurized fluid is constantly supplied, passage means 56 in the stem 52 of the piston for communicating the chamber with passages 76 leading to the cylinder space 80 ahead of the piston head 50 or with passages 92 leading to the cylinder space 82 to the rear of the piston head. Supply of fluid alternately to the cylinder spaces 80, 82 effects the reciprocation of the piston. The cylinder spaces are exhausted via an exhaust port 26 and ports 86 in a muffler 84. The passage means 56 are in communication with the chamber 70 during at least a major portion of the travel of the piston. A pressurized fluid operated rotary motor 200 drives through gears (not shown) a gear 114 fast with a hollow shaft 116 supported in the drill by thrust bearings 122, 124. An internally splined sleeve 102 co-acts with splines on a drill steel 16 and further includes external splines co-acting with internal splines on shaft 116.
GB3501771A 1970-07-29 1971-07-26 Rock drill Expired GB1359717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5929070A 1970-07-29 1970-07-29

Publications (1)

Publication Number Publication Date
GB1359717A true GB1359717A (en) 1974-07-10

Family

ID=22022037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3501771A Expired GB1359717A (en) 1970-07-29 1971-07-26 Rock drill

Country Status (7)

Country Link
US (1) US3666024A (en)
JP (1) JPS5427282B1 (en)
AU (1) AU465340B2 (en)
CA (1) CA946823A (en)
DE (1) DE2137385A1 (en)
GB (1) GB1359717A (en)
ZA (1) ZA714955B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797584A (en) * 1972-03-31 1974-03-19 E Bailey Striking bar
US3998279A (en) * 1972-04-21 1976-12-21 Joy Manufacturing Company Air manifold and delivery passageways for rock drill
SE416341B (en) * 1972-07-14 1980-12-15 Komatsu Mfg Co Ltd rock drill
DE2335731C2 (en) * 1972-07-14 1983-11-17 Kabushiki Kaisha Komatsu Seisakusho, Tokyo Hydraulically operated rock drill - allows quieter and more effective stable operation than pneumatic device
US3858666A (en) * 1972-09-28 1975-01-07 Edward A Bailey Continuous rotation rock drill
US3972376A (en) * 1972-12-08 1976-08-03 Price Vernon L Adapter assembly for impact tool units with rotatable or oscillatable bits
SE391666B (en) * 1973-05-23 1977-02-28 Atlas Copco Ab RECOMMENDATION DEVICES FOR STRIKING MACHINES
US3991835A (en) * 1973-08-07 1976-11-16 Joy Manufacturing Company Pneumatic rock drill with peripheral piston clearance space
JP3680941B2 (en) * 2002-01-18 2005-08-10 マックス株式会社 Concrete drill
DE102005062777A1 (en) * 2005-12-28 2007-07-05 Robert Bosch Gmbh Striker for a striking mechanism
WO2008095073A2 (en) 2007-02-01 2008-08-07 J.H. Fletcher & Co. Fail-resistant hammer assembly for a valveless percussive drill
SE534930C2 (en) * 2010-06-30 2012-02-21 Atlas Copco Rock Drills Ab Carriers for transferring torque and rotation to a drill steel and rock drill
CN105822220B (en) * 2016-05-23 2018-04-03 王向军 A kind of hydraulic gate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082741A (en) * 1960-10-28 1963-03-26 Gardner Denver Co Drilling device
US3154153A (en) * 1961-07-19 1964-10-27 Pan American Petroleum Corp Percussion drilling apparatus
US3410354A (en) * 1966-09-16 1968-11-12 Boris Vasilievich Sudnishnikov Impact device for driving horizontal holes in soft ground
US3456744A (en) * 1967-11-24 1969-07-22 Samuel Altschuler Vibrationless pneumatic tool

Also Published As

Publication number Publication date
AU465340B2 (en) 1975-09-25
JPS5427282B1 (en) 1979-09-08
DE2137385A1 (en) 1972-02-03
ZA714955B (en) 1972-04-26
US3666024A (en) 1972-05-30
AU3168071A (en) 1973-02-01
CA946823A (en) 1974-05-07

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
PS Patent sealed [section 19, patents act 1949]
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed