EP1588019B1 - Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine - Google Patents

Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine Download PDF

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Publication number
EP1588019B1
EP1588019B1 EP04705207A EP04705207A EP1588019B1 EP 1588019 B1 EP1588019 B1 EP 1588019B1 EP 04705207 A EP04705207 A EP 04705207A EP 04705207 A EP04705207 A EP 04705207A EP 1588019 B1 EP1588019 B1 EP 1588019B1
Authority
EP
European Patent Office
Prior art keywords
drilling machine
rock
coupling sleeve
connection
bolt
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP04705207A
Other languages
German (de)
French (fr)
Other versions
EP1588019A1 (en
Inventor
Morgan Kanflod
Fredrik ÖBERG
Bertil Stenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Epiroc Rock Drills AB
Original Assignee
Atlas Copco Rock Drills 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 Atlas Copco Rock Drills AB filed Critical Atlas Copco Rock Drills AB
Priority to SI200430156T priority Critical patent/SI1588019T1/en
Publication of EP1588019A1 publication Critical patent/EP1588019A1/en
Application granted granted Critical
Publication of EP1588019B1 publication Critical patent/EP1588019B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
    • 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
    • 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
    • E21B17/043—Threaded with locking means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/50—Bridged by diverse connector

Definitions

  • the present invention relates to a coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine. More specifically the invention is about a specific design of the coupling sleeve which secures that a certain of the two threaded connections of the coupling sleeve is loosened first when the rock drilling machine is disconnected from the rock bolt.
  • the present invention aims at doing away with the above mentioned drawbacks by providing the coupling sleeve with a locking device which cooperates with a region in the shank adapter of the rock drilling machine in order to prevent that the coupling sleeve and the rock drilling machine are separated when the rock drilling machine and the rock bolt are separated.
  • fig. 1 shows a perspective view of a coupling sleeve according to the invention and a shank adapter and a rock bolt for cooperation with the coupling sleeve.
  • Fig 2 shows a section through the device according to fig 1 with rock bolt and rock drilling machine connected to the coupling sleeve.
  • the coupling sleeve shown in the drawing comprises a first part 3 provided with an internal thread 4 to which a threaded rock bolt 1 is connectable.
  • the threaded rock bolt is provided with a not shown drill bit for drilling of the hole in which the rock bolt is to be anchored.
  • the coupling sleeve comprises also a second part 5 provided with an internal thread 6 to which a rock drilling machine 2 is connectable.
  • the shank adapter belonging to the rock drilling machine is shown.
  • the coupling sleeve has a longitudinal axis 9.
  • the coupling sleeve is in its second part 5 provided with two transversely to axis 9 arranged borings 10 in which a locking device 7 in form of two spring pins is arranged.
  • the locking device 7 cooperates with a region 8 in order to prevent that the coupling sleeve and the rock drilling machine 2 are separated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Dowels (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The coupling socket for connection of a threaded rock bolt (1) to a striking rock drilling machine (2) comprises a first part (3) with an inner thread for connection of the bolt (1) and a second part (5) with an inner thread for connection of the drilling machine. The second part comprises a lock arrangement (7) running across a longitudinal axis (9) of the coupling socket. The lock device works in conjunction with an area (8) on the drilling machine to prevent the coupling socket and the drilling machine being separated.

Description

  • The present invention relates to a coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine. more specifically the invention is about a specific design of the coupling sleeve which secures that a certain of the two threaded connections of the coupling sleeve is loosened first when the rock drilling machine is disconnected from the rock bolt.
  • In a previously known solution for securing that a certain thread connection is loosened first, see SE 433 097, one uses threads with different pitches, different threads or cones in order to achieve a thread connection which is substantially more difficult to loosen than the other. These solutions have the drawback that one must use nonstandard parts. All the time one also must check which end is which in order to achieve correct connection.
  • In an attempt to solve the above mentioned problem, see WO 02/057591, a sleeve is clamped on the thread which is to be difficult to loosen. It has turned out that this solution has the drawback that it cannot take the shock wave loads to which the thread connection is exerted during drilling.
  • The present invention, which is defined in the subsequent claim, aims at doing away with the above mentioned drawbacks by providing the coupling sleeve with a locking device which cooperates with a region in the shank adapter of the rock drilling machine in order to prevent that the coupling sleeve and the rock drilling machine are separated when the rock drilling machine and the rock bolt are separated.
  • An embodiment of the invention is described below with reference to the accompanying drawing in which fig. 1 shows a perspective view of a coupling sleeve according to the invention and a shank adapter and a rock bolt for cooperation with the coupling sleeve. Fig 2 shows a section through the device according to fig 1 with rock bolt and rock drilling machine connected to the coupling sleeve.
  • The coupling sleeve shown in the drawing comprises a first part 3 provided with an internal thread 4 to which a threaded rock bolt 1 is connectable. The threaded rock bolt is provided with a not shown drill bit for drilling of the hole in which the rock bolt is to be anchored. The coupling sleeve comprises also a second part 5 provided with an internal thread 6 to which a rock drilling machine 2 is connectable. In the drawing the shank adapter belonging to the rock drilling machine is shown. The coupling sleeve has a longitudinal axis 9. The coupling sleeve is in its second part 5 provided with two transversely to axis 9 arranged borings 10 in which a locking device 7 in form of two spring pins is arranged. The locking device 7 cooperates with a region 8 in order to prevent that the coupling sleeve and the rock drilling machine 2 are separated.
  • When setting a rock bolt 1 the shank adapter belonging to the rock drilling machine 2 is rotated at the same time as it is exerted to impacts. Through this a hole is drilled with rock bolt 1 in which hole the rock bolt is to be anchorerd. During drilling the locking device 7 is unloaded. After drilling the rock bolt 1 is to be separated from the coupling sleeve and left in the rock. Hereby the rock drilling machine is rotated for loosening of the thread connection.Through cooperation between the locking device 7 and region 8 which has a smaller diameter than the thread of the shank adapter it is prevented that the rock drilling machine 2 and the coupling sleeve are separated. After that the drillhole is filled around the rock bolt with cement or resin for anchoring of the rock bolt in the borehole.

Claims (1)

  1. Coupling sleeve for connecting a threaded rock bolt (1) to an impact rock drilling machine (2) comprising a first part (3) provided with an internal thread (4) for connection of the rock bolt (1) and a second part (5) provided with an internal thread (6) for connection of the rock drilling machine (2), characterized in that the second part (5) comprises a transversely to a longitudinal axis (9) on the coupling sleeve arranged locking device (7) which cooperates with a region (8) on the rock drilling machine (2) for preventing that the coupling sleeve and the rock drilling machine (2) are separated.
EP04705207A 2003-01-30 2004-01-26 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine Expired - Lifetime EP1588019B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200430156T SI1588019T1 (en) 2003-01-30 2004-01-26 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0300211A SE522626C2 (en) 2003-01-30 2003-01-30 Coupling socket for connection of threaded rock bolt to striking rock drilling machine comprises first part with internal thread for connection of bolt and second part with inner thread for connection of drilling machine
SE0300211 2003-01-30
PCT/SE2004/000085 WO2004067902A1 (en) 2003-01-30 2004-01-26 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine

Publications (2)

Publication Number Publication Date
EP1588019A1 EP1588019A1 (en) 2005-10-26
EP1588019B1 true EP1588019B1 (en) 2006-10-25

Family

ID=20290236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04705207A Expired - Lifetime EP1588019B1 (en) 2003-01-30 2004-01-26 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine

Country Status (12)

Country Link
US (1) US20060078372A1 (en)
EP (1) EP1588019B1 (en)
JP (1) JP4568715B2 (en)
CN (1) CN100335740C (en)
AT (1) ATE343706T1 (en)
CA (1) CA2511943C (en)
DE (1) DE602004002930T2 (en)
DK (1) DK1588019T3 (en)
ES (1) ES2276271T3 (en)
PT (1) PT1588019E (en)
SE (1) SE522626C2 (en)
WO (1) WO2004067902A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT9590U1 (en) * 2006-08-17 2007-12-15 Atlas Copco Mai Gmbh RUBBER TANK AND INFLATION ADAPTER FOR THESE
RU2444630C2 (en) 2006-11-15 2012-03-10 Сандвик Интеллекчуал Проперти Аб Anchor bolt and anchor device
AU2006236012B2 (en) * 2006-11-15 2009-06-04 Sandvik Intellectual Property Ab A rock bolt and an anchoring device
FR2952506A1 (en) * 2009-11-13 2011-05-20 Edith Thiriet Dismountable de-scaling device for breadmaker, has turning drill equipped with tubes that comprise multiple elements, where tubes are connected with each other by utilizing threadings
FI123244B (en) * 2010-10-26 2013-01-15 Peikko Group Oy Column Shoe
CN102465712B (en) * 2010-11-15 2015-01-28 湖南汉寿中煤科技有限公司 Drilling-cutting-linked coal layer gas drainage and outburst prevention system and method based on ultra-long drilling and high-pressure water jetting
AU2011336749B2 (en) 2010-12-01 2017-03-02 Vermeer Manufacturing Company Tapered thread configuration with improved durability
DE102011107348A1 (en) 2011-06-29 2013-01-03 Tracto-Technik Gmbh & Co. Kg "Connection device"
JP2013106827A (en) * 2011-11-22 2013-06-06 Yoshida Dental Mfg Co Ltd Ultrasonic scaler handpiece
DE102013012714A1 (en) * 2013-08-01 2015-02-05 Deilmann-Haniel Mining Systems Gmbh Shank end for a drilling and tying tool
SG11201601333RA (en) * 2013-10-07 2016-03-30 Halliburton Energy Services Inc Quick connect for wellbore tubulars
JP2017203332A (en) * 2016-05-13 2017-11-16 株式会社トライテック Boring tool and boring method
DE102019121054A1 (en) * 2018-08-06 2020-02-06 The Charles Machine Works, Inc. Double-tube drill bit quick-change connection
CN112302696B (en) * 2020-09-30 2023-02-28 中煤科工开采研究院有限公司 Anchor rod assembly

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US771626A (en) * 1903-12-16 1904-10-04 George H Gilman Drill-chuck.
US1701985A (en) * 1926-03-18 1929-02-12 Ponto Otto Coupling lock
US1994792A (en) * 1932-08-08 1935-03-19 Ray R Sanderson Drill bit
SE403926B (en) * 1975-11-05 1978-09-11 Sandvik Ab LOCKING DEVICE AT DRILL
SE433097B (en) * 1979-09-04 1984-05-07 Atlas Copco Ab Equipment for joinable drill stem
JPS58176191U (en) * 1982-05-20 1983-11-25 マツダ株式会社 rock drill rock drill
JPH05263577A (en) * 1992-03-17 1993-10-12 Mitsubishi Heavy Ind Ltd Roof bolt
JP3272324B2 (en) * 1999-05-17 2002-04-08 合資会社日高商会 Method and apparatus for disassembling connecting rod assembly for drilling and rotation stopper jig
SE516995C2 (en) * 2001-01-19 2002-04-02 Atlas Copco Rock Drills Ab Clutch sleeve for connecting a threaded rock bolt to a striking rock drill

Also Published As

Publication number Publication date
ES2276271T3 (en) 2007-06-16
CA2511943A1 (en) 2004-08-12
CN1723330A (en) 2006-01-18
EP1588019A1 (en) 2005-10-26
WO2004067902A1 (en) 2004-08-12
DE602004002930T2 (en) 2007-04-05
PT1588019E (en) 2007-02-28
CN100335740C (en) 2007-09-05
SE0300211L (en) 2004-02-24
DK1588019T3 (en) 2007-02-19
US20060078372A1 (en) 2006-04-13
ATE343706T1 (en) 2006-11-15
DE602004002930D1 (en) 2006-12-07
SE0300211D0 (en) 2003-01-30
SE522626C2 (en) 2004-02-24
JP4568715B2 (en) 2010-10-27
CA2511943C (en) 2012-02-21
JP2006517010A (en) 2006-07-13

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