SE9000843D0 - THREAD FRICTION LOCKING DEVICE - Google Patents

THREAD FRICTION LOCKING DEVICE

Info

Publication number
SE9000843D0
SE9000843D0 SE9000843A SE9000843A SE9000843D0 SE 9000843 D0 SE9000843 D0 SE 9000843D0 SE 9000843 A SE9000843 A SE 9000843A SE 9000843 A SE9000843 A SE 9000843A SE 9000843 D0 SE9000843 D0 SE 9000843D0
Authority
SE
Sweden
Prior art keywords
locking device
friction locking
thread friction
thread
tubes
Prior art date
Application number
SE9000843A
Other languages
Swedish (sv)
Other versions
SE9000843L (en
SE470217B (en
Inventor
K 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 SE9000843A priority Critical patent/SE470217B/en
Publication of SE9000843D0 publication Critical patent/SE9000843D0/en
Priority to AU74640/91A priority patent/AU640768B2/en
Priority to CA 2081363 priority patent/CA2081363A1/en
Priority to PCT/SE1991/000170 priority patent/WO1991014073A1/en
Priority to IE077691A priority patent/IE910776A1/en
Publication of SE9000843L publication Critical patent/SE9000843L/en
Publication of SE470217B publication Critical patent/SE470217B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B17/043—Threaded with locking means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/34—Locking by deformable inserts or like parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/08—Screw-threaded joints; Forms of screw-threads for such joints with supplementary elements

Abstract

The present invention relates to a thread friction locking device (10), especially adapted to be mounted in a thread coupling between tubes for percussive drilling. A frequent problem in a drill tube system of this type is that the threads, if not tightened, have a tendency to unscrew. This happens especially when the drill string of tubes are raised and disconnected from each other when drilling is finished or the drill bit must be exchanged. The thread friction locking device (10) according to the present invention is characterized in that it has a general shape of an annular ring, it has means for distributing flushing medium in axial direction of the device (10) and it is made out of urethane rubber.
SE9000843A 1990-03-09 1990-03-09 Device for friction locking of threaded joints on striking drilling pipes SE470217B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9000843A SE470217B (en) 1990-03-09 1990-03-09 Device for friction locking of threaded joints on striking drilling pipes
AU74640/91A AU640768B2 (en) 1990-03-09 1991-03-05 Thread friction locking device
CA 2081363 CA2081363A1 (en) 1990-03-09 1991-03-05 Thread friction locking device
PCT/SE1991/000170 WO1991014073A1 (en) 1990-03-09 1991-03-05 Thread friction locking device
IE077691A IE910776A1 (en) 1990-03-09 1991-03-08 Thread friction locking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000843A SE470217B (en) 1990-03-09 1990-03-09 Device for friction locking of threaded joints on striking drilling pipes

Publications (3)

Publication Number Publication Date
SE9000843D0 true SE9000843D0 (en) 1990-03-09
SE9000843L SE9000843L (en) 1991-09-10
SE470217B SE470217B (en) 1993-12-06

Family

ID=20378812

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9000843A SE470217B (en) 1990-03-09 1990-03-09 Device for friction locking of threaded joints on striking drilling pipes

Country Status (5)

Country Link
AU (1) AU640768B2 (en)
CA (1) CA2081363A1 (en)
IE (1) IE910776A1 (en)
SE (1) SE470217B (en)
WO (1) WO1991014073A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE526762C2 (en) 2002-06-17 2005-11-01 Sandvik Intellectual Property He / she connection showing press fit between the parts
DE102015112079A1 (en) * 2015-07-24 2017-01-26 Franz Haimer Maschinenbau Kg Screw-in tool and tool holder with divided support area

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE600537C (en) * 1932-11-01 1934-07-26 Gustavus A Montgomery Coupling for drill rods
SE403926B (en) * 1975-11-05 1978-09-11 Sandvik Ab LOCKING DEVICE AT DRILL

Also Published As

Publication number Publication date
CA2081363A1 (en) 1991-09-10
WO1991014073A1 (en) 1991-09-19
IE910776A1 (en) 1991-09-11
SE9000843L (en) 1991-09-10
SE470217B (en) 1993-12-06
AU640768B2 (en) 1993-09-02
AU7464091A (en) 1991-10-10

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