ZA795944B - Connection of rod-like components - Google Patents

Connection of rod-like components

Info

Publication number
ZA795944B
ZA795944B ZA00795944A ZA795944A ZA795944B ZA 795944 B ZA795944 B ZA 795944B ZA 00795944 A ZA00795944 A ZA 00795944A ZA 795944 A ZA795944 A ZA 795944A ZA 795944 B ZA795944 B ZA 795944B
Authority
ZA
South Africa
Prior art keywords
components
overlapping surfaces
rod
recesses
connection
Prior art date
Application number
ZA00795944A
Inventor
N Cox
C Green
Original Assignee
Halifax Tool Co 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 Halifax Tool Co Ltd filed Critical Halifax Tool Co Ltd
Publication of ZA795944B publication Critical patent/ZA795944B/en

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
    • 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)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Glass Compositions (AREA)

Abstract

A connection for rod-like components, such as fluid flow path-defining components in a fluid powered free-piston down-the-hole hammer drill, comprising inner and outer components (7,5) having adjacent overlapping surfaces is characterised by at least one circumferential recess (9,11) in each of the overlapping surfaces, the recesses (9,11) being opposed to define one ore more annular spaces each accomodating an elastomeric sealing/retaining ring (8). The overlapping surfaces are preferably a close fit one within the other and have a plurality of said recesses (9,11) spaced-apart to accommodate correspondingly spaced rings (8) to distribute stresses between the components (7,5) and to maintain alignment thereof.
ZA00795944A 1978-11-10 1979-11-06 Connection of rod-like components ZA795944B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7844128 1978-11-10

Publications (1)

Publication Number Publication Date
ZA795944B true ZA795944B (en) 1980-11-26

Family

ID=10500973

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00795944A ZA795944B (en) 1978-11-10 1979-11-06 Connection of rod-like components

Country Status (7)

Country Link
EP (1) EP0011219B1 (en)
JP (1) JPS5575092A (en)
AT (1) ATE3574T1 (en)
DE (1) DE2965531D1 (en)
ES (1) ES8100418A1 (en)
IN (1) IN152190B (en)
ZA (1) ZA795944B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080099218A1 (en) * 2006-10-26 2008-05-01 Sandvik Intellectual Property Ab Air actuated down-the-hole hammer for rock drilling, a drill bit and a foot valve to be used in the down-the-hole hammer
AU2014202538B2 (en) * 2013-05-10 2018-03-08 Tricon Drilling Solutions Pty Ltd Percussive Down-The-Hole Drill
EP2873799B1 (en) * 2013-11-18 2017-06-14 Sandvik Intellectual Property AB Down-the-hole hammer drill bit assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1278127A (en) * 1968-08-15 1972-06-14 Mission Mfg Co Improvements relating to percussion tools
US3791462A (en) * 1972-03-29 1974-02-12 A Curington Percussion anvil bits
US3866746A (en) * 1973-08-27 1975-02-18 Bakerdrill Inc Rotary bore hole air hammer drive mechanism
US3871486A (en) * 1973-08-29 1975-03-18 Bakerdrill Inc Continuous coring system and apparatus
DE2551292C3 (en) * 1975-11-14 1980-03-27 Institut Gornogo Dela Sibirskogo Otdelenija Akademii Nauk Ssr, Nowosibirsk (Sowjetunion) Compressed air operated deep hole hammer drill
DE2609376C3 (en) * 1976-03-06 1978-09-07 H.P. Walter Gmbh + Co Drucklufttechnik Kg, 3570 Stadt Allendorf Downhole hammer
DE2816737C3 (en) * 1978-04-18 1981-03-19 Hans Philipp 3570 Stadtallendorf Walter Rotary hammer, especially deep-hole hammer

Also Published As

Publication number Publication date
DE2965531D1 (en) 1983-07-07
EP0011219A1 (en) 1980-05-28
ATE3574T1 (en) 1983-06-15
EP0011219B1 (en) 1983-05-25
IN152190B (en) 1983-11-12
ES485775A0 (en) 1980-11-01
ES8100418A1 (en) 1980-11-01
JPS5575092A (en) 1980-06-06

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