SE0300498D0 - Tool - Google Patents

Tool

Info

Publication number
SE0300498D0
SE0300498D0 SE0300498A SE0300498A SE0300498D0 SE 0300498 D0 SE0300498 D0 SE 0300498D0 SE 0300498 A SE0300498 A SE 0300498A SE 0300498 A SE0300498 A SE 0300498A SE 0300498 D0 SE0300498 D0 SE 0300498D0
Authority
SE
Sweden
Prior art keywords
male portion
thread
shoulder
clearance surface
external thread
Prior art date
Application number
SE0300498A
Other languages
Swedish (sv)
Other versions
SE0300498L (en
SE525431C2 (en
Inventor
Johan Linden
Per-Olof Liljebrand
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 SE0300498A priority Critical patent/SE525431C2/en
Publication of SE0300498D0 publication Critical patent/SE0300498D0/en
Priority to EP04712263A priority patent/EP1597454B1/en
Priority to PCT/SE2004/000210 priority patent/WO2004074624A1/en
Publication of SE0300498L publication Critical patent/SE0300498L/en
Publication of SE525431C2 publication Critical patent/SE525431C2/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
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods

Abstract

According to the present invention, there is a male portion for percussive drilling comprising an external thread (14). The male portion (13) constitutes an integrated part of a drill element (10A). The male portion has a through flush channel (15) for a flush medium. The external thread (14) comprises thread flanks adapted for percussive drilling. The thread is terminated in a clearance surface (16). The clearance surface (16) connects via a concave portion (17) to a shoulder (18). The shoulder is intended to transfer shock waves. The concave portion (17) of the male portion is provided with a coating consisting of at least one erosion corrosion-protecting layer (20).
SE0300498A 2003-02-24 2003-02-24 Trade for striking drilling SE525431C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0300498A SE525431C2 (en) 2003-02-24 2003-02-24 Trade for striking drilling
EP04712263A EP1597454B1 (en) 2003-02-24 2004-02-18 Tool
PCT/SE2004/000210 WO2004074624A1 (en) 2003-02-24 2004-02-18 Tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0300498A SE525431C2 (en) 2003-02-24 2003-02-24 Trade for striking drilling

Publications (3)

Publication Number Publication Date
SE0300498D0 true SE0300498D0 (en) 2003-02-24
SE0300498L SE0300498L (en) 2004-08-25
SE525431C2 SE525431C2 (en) 2005-02-22

Family

ID=20290492

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0300498A SE525431C2 (en) 2003-02-24 2003-02-24 Trade for striking drilling

Country Status (3)

Country Link
EP (1) EP1597454B1 (en)
SE (1) SE525431C2 (en)
WO (1) WO2004074624A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE528777C2 (en) * 2005-04-14 2007-02-13 Sandvik Intellectual Property Hanging and female threaded drill components and a threaded joint designed therewith
SE534770C2 (en) 2010-01-11 2011-12-13 Atlas Copco Rock Drills Ab Striking rock drilling machine including a front part with a bobbin case
CN102704863B (en) * 2012-06-20 2015-05-06 中国石油天然气集团公司 Hot crack prevention internal screw joint of drill rod and manufacturing method for internal screw joint

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE505073C2 (en) * 1994-07-19 1997-06-23 Sandvik Ab Threaded joints for striking drilling
SE506695C2 (en) * 1994-11-23 1998-02-02 Uniroc Ab Threaded joint for striking drilling
SE505068C2 (en) * 1995-03-27 1997-06-23 Sandvik Ab Method of transferring impact energy from a drilling tool to a borehole, rock drilling tool and drill bit for striking drilling
DE19541163A1 (en) * 1995-11-04 1997-05-07 Hawera Probst Kg Hartmetall Drilling tool, in particular for processing stone
SE516651C2 (en) * 1999-11-26 2002-02-05 Sandvik Ab Threaded joints for striking drilling, a trade and a female part
SE514931C2 (en) * 2000-03-02 2001-05-21 Sandvik Ab Rock drill bit and process for its manufacture

Also Published As

Publication number Publication date
EP1597454A1 (en) 2005-11-23
EP1597454B1 (en) 2006-07-05
SE0300498L (en) 2004-08-25
WO2004074624A1 (en) 2004-09-02
SE525431C2 (en) 2005-02-22

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Legal Events

Date Code Title Description
NUG Patent has lapsed