SE8102626L - CUTTING COMPOUNDS FOR MOUNTAIN DRILL EQUIPMENT - Google Patents

CUTTING COMPOUNDS FOR MOUNTAIN DRILL EQUIPMENT

Info

Publication number
SE8102626L
SE8102626L SE8102626A SE8102626A SE8102626L SE 8102626 L SE8102626 L SE 8102626L SE 8102626 A SE8102626 A SE 8102626A SE 8102626 A SE8102626 A SE 8102626A SE 8102626 L SE8102626 L SE 8102626L
Authority
SE
Sweden
Prior art keywords
screw
rod
coupling
thread
threaded portion
Prior art date
Application number
SE8102626A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE426089B (en
Inventor
G C Gustafsson
Original Assignee
Fagersta Ab
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 Fagersta Ab filed Critical Fagersta Ab
Priority to SE8102626A priority Critical patent/SE426089B/en
Priority to DE8282901041T priority patent/DE3264233D1/en
Priority to EP82901041A priority patent/EP0077336B1/en
Priority to PCT/SE1982/000091 priority patent/WO1982003653A1/en
Priority to AU82756/82A priority patent/AU547091B2/en
Priority to AT8282901041T priority patent/ATE13925T1/en
Priority to ZA822203A priority patent/ZA822203B/en
Priority to CA000400710A priority patent/CA1178944A/en
Priority to IE955/82A priority patent/IE52613B1/en
Publication of SE8102626L publication Critical patent/SE8102626L/en
Priority to NO823966A priority patent/NO158152C/en
Publication of SE426089B publication Critical patent/SE426089B/en
Priority to FI824324A priority patent/FI77303C/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
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods

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

An extension coupling for rock drilling equipment comprises a coupling rod (1) having a screw-threaded portion (3) with an outer thread whose diameter is smaller than the diameter of the non-threaded portion (6) of the rod, and a sleeve-like part (2) with a portion (4) having an internal screw-thread which corresponds to the outer screw-thread of the rod. The screw-like part (2) includes an extension (5) in the form of a plain skirt-like part which extends from the screw-threaded portion (4) of the sleeve-like part to the outer end thereof and which embraces a part (6) of the plain portion of the coupling rod. The skirt (5) according to the invention provides a supporting effect which reduces the occurrence of bending stresses on the coupling.
SE8102626A 1981-04-24 1981-04-24 CUTTING COMPOUNDS FOR MOUNTAIN DRILL EQUIPMENT SE426089B (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE8102626A SE426089B (en) 1981-04-24 1981-04-24 CUTTING COMPOUNDS FOR MOUNTAIN DRILL EQUIPMENT
AT8282901041T ATE13925T1 (en) 1981-04-24 1982-03-26 COUPLING EXTENSION FOR ROCK DRILLING MACHINES.
EP82901041A EP0077336B1 (en) 1981-04-24 1982-03-26 An extension coupling for rock drilling equipment
PCT/SE1982/000091 WO1982003653A1 (en) 1981-04-24 1982-03-26 An extension coupling for rock drilling equipment
AU82756/82A AU547091B2 (en) 1981-04-24 1982-03-26 An extension coupling for rock drilling equipment
DE8282901041T DE3264233D1 (en) 1981-04-24 1982-03-26 An extension coupling for rock drilling equipment
ZA822203A ZA822203B (en) 1981-04-24 1982-03-31 An extension coupling for rock drilling equipment
CA000400710A CA1178944A (en) 1981-04-24 1982-04-08 Extension coupling for rock drilling equipment
IE955/82A IE52613B1 (en) 1981-04-24 1982-04-23 An extension coupling for rock drilling equipment
NO823966A NO158152C (en) 1981-04-24 1982-11-26 SKJOETEFORBINDELSE.
FI824324A FI77303C (en) 1981-04-24 1982-12-16 Joint joints for rock drilling equipment.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8102626A SE426089B (en) 1981-04-24 1981-04-24 CUTTING COMPOUNDS FOR MOUNTAIN DRILL EQUIPMENT

Publications (2)

Publication Number Publication Date
SE8102626L true SE8102626L (en) 1982-10-25
SE426089B SE426089B (en) 1982-12-06

Family

ID=20343676

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8102626A SE426089B (en) 1981-04-24 1981-04-24 CUTTING COMPOUNDS FOR MOUNTAIN DRILL EQUIPMENT

Country Status (9)

Country Link
EP (1) EP0077336B1 (en)
AU (1) AU547091B2 (en)
CA (1) CA1178944A (en)
DE (1) DE3264233D1 (en)
FI (1) FI77303C (en)
IE (1) IE52613B1 (en)
SE (1) SE426089B (en)
WO (1) WO1982003653A1 (en)
ZA (1) ZA822203B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553171B1 (en) * 1983-10-03 1988-04-08 Dril Quip Inc APPARATUS AND METHOD FOR CONNECTING PARTICULARLY CYLINDRICAL ELEMENTS SUCH AS TUBES
SE8600199L (en) * 1986-01-17 1987-07-18 Loevab Loef Och Oestlund Ab Drilling Tools
US5622820A (en) * 1988-03-10 1997-04-22 City Of Hope Method for amplification and detection of RNA and DNA sequences
SE522221C2 (en) * 2001-10-12 2004-01-27 Sandvik Ab Striking rock drill joints
JP4954542B2 (en) 2005-12-09 2012-06-20 三菱マテリアル株式会社 Drilling rod, drilling bit and drilling tool
CA2652278A1 (en) * 2006-05-17 2007-11-22 Sandvik Intellectual Property Ab A top hammer rock-drilling tool, a drill rod and coupling sleeve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2122757A (en) * 1935-07-05 1938-07-05 Hughes Tool Co Drill stem coupling
SE401232B (en) * 1970-05-04 1978-04-24 Sandvik Ab THREADED CONNECTION FOR IMPACT BRUSHES

Also Published As

Publication number Publication date
ZA822203B (en) 1983-02-23
SE426089B (en) 1982-12-06
FI824324A0 (en) 1982-12-16
FI824324L (en) 1982-12-16
EP0077336A1 (en) 1983-04-27
WO1982003653A1 (en) 1982-10-28
FI77303C (en) 1989-02-10
IE820955L (en) 1982-10-24
DE3264233D1 (en) 1985-08-01
EP0077336B1 (en) 1985-06-19
IE52613B1 (en) 1987-12-23
CA1178944A (en) 1984-12-04
AU8275682A (en) 1982-11-04
FI77303B (en) 1988-10-31
AU547091B2 (en) 1985-10-03

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