GB1275443A - Improvements in or relating to percussion drills - Google Patents

Improvements in or relating to percussion drills

Info

Publication number
GB1275443A
GB1275443A GB54529/69A GB5452969A GB1275443A GB 1275443 A GB1275443 A GB 1275443A GB 54529/69 A GB54529/69 A GB 54529/69A GB 5452969 A GB5452969 A GB 5452969A GB 1275443 A GB1275443 A GB 1275443A
Authority
GB
United Kingdom
Prior art keywords
shoulder
passage
bit
tube
shank portion
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
GB54529/69A
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.)
Halco Directional Drilling Products Ltd
Original Assignee
Halco Directional Drilling Products Ltd
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 Halco Directional Drilling Products Ltd filed Critical Halco Directional Drilling Products Ltd
Publication of GB1275443A publication Critical patent/GB1275443A/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • 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
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers

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

1275443 Rock drills HALIFAX TOOL CO. Ltd 6 Nov 1969 [29 Nov 1968] 54529/69 Heading B3C [Also in Divisions B4 and E1] A percussion drill includes a tube 10 having at one end a passage 14 of regular polygonal crosssection along substantially its whole length, a shoulder 15 and a reduced diameter bore 16, and a drill bit 5 having a shank portion 17 of substantially the same section as the passage, a shoulder 18 and a cylindrical projection 19. The bit is retained in the tube by a pin 6 extending into the passage and engaging with a recess 7 in the bit. Percussion blows are applied to the drill bit by a compressed air actuated piston hammer 4. During drilling the tube is rotated. Fig. 3 illustrates a prior art drill having a splined shank portion 17<SP>1</SP> and a cylindrical shank portion 9<SP>1</SP> connected by a shoulder 151.
GB54529/69A 1968-11-29 1969-11-06 Improvements in or relating to percussion drills Expired GB1275443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR175908 1968-11-29

Publications (1)

Publication Number Publication Date
GB1275443A true GB1275443A (en) 1972-05-24

Family

ID=8657631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54529/69A Expired GB1275443A (en) 1968-11-29 1969-11-06 Improvements in or relating to percussion drills

Country Status (6)

Country Link
JP (1) JPS5024685B1 (en)
BE (1) BE726797A (en)
ES (1) ES366378A1 (en)
FR (1) FR1593824A (en)
GB (1) GB1275443A (en)
SE (1) SE350566B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2216826A (en) * 1988-04-05 1989-10-18 Gullick Dobson Ltd Drill bit holder
EP1849956A1 (en) * 2006-04-26 2007-10-31 BAUER Maschinen GmbH Pipe coupling for pipe elements
CN108979522A (en) * 2017-06-01 2018-12-11 石兴 A kind of long-spiral drilling machine enters rock and manufactures the method and apparatus of club-footed pile carrier pile

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU503750B2 (en) * 1976-07-13 1979-09-20 William Lister Rock drilling bit
JPS5762558U (en) * 1980-09-30 1982-04-14
CN118481627B (en) * 2024-07-16 2024-09-13 山西宝能智控装备制造有限公司 Intelligent coal mining machine and application method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2216826A (en) * 1988-04-05 1989-10-18 Gullick Dobson Ltd Drill bit holder
GB2216826B (en) * 1988-04-05 1992-03-04 Gullick Dobson Ltd Retaining devices
EP1849956A1 (en) * 2006-04-26 2007-10-31 BAUER Maschinen GmbH Pipe coupling for pipe elements
US7559583B2 (en) 2006-04-26 2009-07-14 Bauer Maschinen Gmbh Tube coupling for tube elements
CN108979522A (en) * 2017-06-01 2018-12-11 石兴 A kind of long-spiral drilling machine enters rock and manufactures the method and apparatus of club-footed pile carrier pile

Also Published As

Publication number Publication date
JPS5024685B1 (en) 1975-08-18
FR1593824A (en) 1970-06-01
SE350566B (en) 1972-10-30
DE1922215A1 (en) 1971-08-12
ES366378A1 (en) 1971-03-16
BE726797A (en) 1969-06-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee