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SE9402517L - Threaded joints - Google Patents

Threaded joints

Info

Publication number
SE9402517L
SE9402517L SE9402517A SE9402517A SE9402517L SE 9402517 L SE9402517 L SE 9402517L SE 9402517 A SE9402517 A SE 9402517A SE 9402517 A SE9402517 A SE 9402517A SE 9402517 L SE9402517 L SE 9402517L
Authority
SE
Sweden
Prior art keywords
spigot
sleeve
thread
coupling
threads
Prior art date
Application number
SE9402517A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9402517D0 (en
SE505073C2 (en
Inventor
Kenneth Larsson
Original Assignee
Sandvik 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 Sandvik Ab filed Critical Sandvik Ab
Priority to SE9402517A priority Critical patent/SE505073C2/en
Publication of SE9402517D0 publication Critical patent/SE9402517D0/en
Priority to EP95926562A priority patent/EP0771388A1/en
Priority to JP8504950A priority patent/JPH10504077A/en
Priority to AU30893/95A priority patent/AU684380B2/en
Priority to CA 2192204 priority patent/CA2192204A1/en
Priority to PCT/SE1995/000852 priority patent/WO1996002729A1/en
Priority to BR9508260A priority patent/BR9508260A/en
Publication of SE9402517L publication Critical patent/SE9402517L/en
Priority to FI970181A priority patent/FI970181A/en
Publication of SE505073C2 publication Critical patent/SE505073C2/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)
  • Prostheses (AREA)

Abstract

Thread coupling for percussive drilling including at least one male thread (10), arranged on a spigot (11), and one female thread (17), arranged within a sleeve. The threads are cylindrical and include an external stop surface (20) at a free end of the sleeve, and a contact surface (14) on the spigot. Further, they include an internal stop surface (21) in the sleeve, and an end surface (16) on the free end of the spigot. Initially, there is a play ( delta ) between the end surface (16) of the spigot and the internal stop surface (21) of the sleeve, this initial play being eliminated after wearing-in of the thread coupling. By increasing the pitch angle ( alpha ) of the threads (19, 17), a less tightening coupling is achieved, that due to the shoulder-bottom stop, still has an acceptable length of life.
SE9402517A 1994-07-19 1994-07-19 Threaded joints for striking drilling SE505073C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9402517A SE505073C2 (en) 1994-07-19 1994-07-19 Threaded joints for striking drilling
EP95926562A EP0771388A1 (en) 1994-07-19 1995-07-13 Thread coupling
JP8504950A JPH10504077A (en) 1994-07-19 1995-07-13 Threaded joint
AU30893/95A AU684380B2 (en) 1994-07-19 1995-07-13 Thread coupling
CA 2192204 CA2192204A1 (en) 1994-07-19 1995-07-13 Thread coupling
PCT/SE1995/000852 WO1996002729A1 (en) 1994-07-19 1995-07-13 Thread coupling
BR9508260A BR9508260A (en) 1994-07-19 1995-07-13 Threaded coupling for percussive drilling
FI970181A FI970181A (en) 1994-07-19 1997-01-16 Screw fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9402517A SE505073C2 (en) 1994-07-19 1994-07-19 Threaded joints for striking drilling

Publications (3)

Publication Number Publication Date
SE9402517D0 SE9402517D0 (en) 1994-07-19
SE9402517L true SE9402517L (en) 1996-01-20
SE505073C2 SE505073C2 (en) 1997-06-23

Family

ID=20394759

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9402517A SE505073C2 (en) 1994-07-19 1994-07-19 Threaded joints for striking drilling

Country Status (8)

Country Link
EP (1) EP0771388A1 (en)
JP (1) JPH10504077A (en)
AU (1) AU684380B2 (en)
BR (1) BR9508260A (en)
CA (1) CA2192204A1 (en)
FI (1) FI970181A (en)
SE (1) SE505073C2 (en)
WO (1) WO1996002729A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997032109A1 (en) * 1996-02-29 1997-09-04 Ingersoll-Rand Company Dual pitch connecting joint
SE525431C2 (en) * 2003-02-24 2005-02-22 Sandvik Ab Trade for striking drilling
JP5358492B2 (en) * 2009-09-08 2013-12-04 株式会社ジオ機材 Connection structure for hammering rod
JP6136439B2 (en) * 2013-03-26 2017-05-31 三菱マテリアル株式会社 Thread joint structure of excavation tool and excavation tool
EP3095954B1 (en) 2015-05-22 2024-05-15 Sandvik Intellectual Property AB Drill rod or adaptor with strengthened spigot coupling
EP3933165A1 (en) * 2020-06-30 2022-01-05 Sandvik Mining and Construction Tools AB Thread clearance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1326643A (en) * 1919-12-30 Rotary coupling
SE8600199L (en) * 1986-01-17 1987-07-18 Loevab Loef Och Oestlund Ab Drilling Tools
SE469603B (en) * 1988-07-08 1993-08-02 Sandvik Ab GAENGFOERBAND

Also Published As

Publication number Publication date
AU684380B2 (en) 1997-12-11
BR9508260A (en) 1997-12-23
EP0771388A1 (en) 1997-05-07
WO1996002729A1 (en) 1996-02-01
SE9402517D0 (en) 1994-07-19
CA2192204A1 (en) 1996-02-01
FI970181A0 (en) 1997-01-16
SE505073C2 (en) 1997-06-23
FI970181A (en) 1997-01-16
AU3089395A (en) 1996-02-16
JPH10504077A (en) 1998-04-14

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