WO2002057591A1 - 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

Info

Publication number
WO2002057591A1
WO2002057591A1 PCT/SE2002/000029 SE0200029W WO02057591A1 WO 2002057591 A1 WO2002057591 A1 WO 2002057591A1 SE 0200029 W SE0200029 W SE 0200029W WO 02057591 A1 WO02057591 A1 WO 02057591A1
Authority
WO
WIPO (PCT)
Prior art keywords
drilling machine
rock
connection
coupling sleeve
rock drilling
Prior art date
Application number
PCT/SE2002/000029
Other languages
French (fr)
Inventor
Thomas Arvidsson
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
Publication of WO2002057591A1 publication Critical patent/WO2002057591A1/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
    • E21B17/043—Threaded with locking means
    • 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

Definitions

  • Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine
  • 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 relates to an execution of the coupling sleeve which secures that a certain of the two screw joints of the coupling sleeve is loosened first when disconnecting the rock drilling machine from the rock bolt.
  • the present invention which is defined in the subsequent claim, aims at avoiding the above drawbacks through using substantially the same thread in both joints and that the joint which should be more difficult to loosen by means of a mechanical joint is prevented . from loosening when the rock drilling machine and the rock bolt are separated.
  • fig 1 shows a coupling sleeve according to the invention.
  • Fig 2 shows a section according to 2-2 in fig 1 and with rock bolt and rock drilling machine connected.
  • Fig 3 shows a section according to 3-3 in fig 1.
  • 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 the hole in which the rock bolt is to be anchored.
  • the coupling sleeve also comprises a second part 5 provided with an internal sleeve 6 to which a rock drilling machine is connectable.
  • the shank adapter belonging to the rock drilling machine is shown.
  • the second part 5 comprises a longitudinal slot 7 and clamping means 8.
  • the clamping means are in the shown examle three screws 8 by means of which the slot 7 can be pressed together so that the second part 5 can be squeezed about the shank adapter of the rock drilling machine 2.
  • the second part 5 is provided with a groove 9 so that deformation of the thread 6 at clamping of the second part 5 about the rock drilling machine 2 does not become dissturbing for the functioning.
  • the coupling sleeve is also provided with a flange 10 against which the rock bolt 1 and the shank adapter of the rock drilling machine 2 rest. The impact energy of the rock drilling machine is transferred via the flange 10 to the rock bolt 1 when it is drilled into the ground in which the rock bolt is to be anchored.
  • the thread joint between the rock bolt 1 and the thread 4 is the joint which is loosened when the connection between the rock drilling machine and the rock bolt is broken.

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

Coupling sleeve for connection of a threaded rock bolt (1) to an impact rock drilling machine (2), the coupling sleeve comprises 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). The second part (5) comprises a longitudinal slot (7) and clamping means (8) for squeezing the slot (7) through which the second part (5) is clamped about the rock drilling machine (2).

Description

Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine
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 relates to an execution of the coupling sleeve which secures that a certain of the two screw joints of the coupling sleeve is loosened first when disconnecting the rock drilling machine from the rock bolt.
According to a prior art solution to secure that a certain thread joint is loosened first, see SE 433097, threads with different pitches or cones are used to achieve a thread joint which is substantially more difficult to loosen than the other. These solutions have the drawback that one has to use nonstandardized parts. At use one also has to keep track of which end is which in order to achieve correct connection.
The present invention, which is defined in the subsequent claim, aims at avoiding the above drawbacks through using substantially the same thread in both joints and that the joint which should be more difficult to loosen by means of a mechanical joint is prevented . from loosening 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 coupling sleeve according to the invention. Fig 2 shows a section according to 2-2 in fig 1 and with rock bolt and rock drilling machine connected. Fig 3 shows a section according to 3-3 in fig 1.
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 the hole in which the rock bolt is to be anchored. The coupling sleeve also comprises a second part 5 provided with an internal sleeve 6 to which a rock drilling machine is connectable. In the drawing the shank adapter belonging to the rock drilling machine is shown. The second part 5 comprises a longitudinal slot 7 and clamping means 8. The clamping means are in the shown examle three screws 8 by means of which the slot 7 can be pressed together so that the second part 5 can be squeezed about the shank adapter of the rock drilling machine 2. The second part 5 is provided with a groove 9 so that deformation of the thread 6 at clamping of the second part 5 about the rock drilling machine 2 does not become dissturbing for the functioning. The coupling sleeve is also provided with a flange 10 against which the rock bolt 1 and the shank adapter of the rock drilling machine 2 rest. The impact energy of the rock drilling machine is transferred via the flange 10 to the rock bolt 1 when it is drilled into the ground in which the rock bolt is to be anchored. By means of the shown design it is secured that the thread joint between the rock bolt 1 and the thread 4 is the joint which is loosened when the connection between the rock drilling machine and the rock bolt is broken.

Claims

Claim:
1. Coupling sleeve for connection of 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 longitudinal slot (7) and that a clamping means (8) is arranged to clamp the second part (5) to the rock drilling machine (2) through squeezing the slot (7).
PCT/SE2002/000029 2001-01-19 2002-01-10 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine WO2002057591A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0100152-8 2001-01-19
SE0100152A SE516995C2 (en) 2001-01-19 2001-01-19 Clutch sleeve for connecting a threaded rock bolt to a striking rock drill

Publications (1)

Publication Number Publication Date
WO2002057591A1 true WO2002057591A1 (en) 2002-07-25

Family

ID=20282667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2002/000029 WO2002057591A1 (en) 2001-01-19 2002-01-10 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine

Country Status (2)

Country Link
SE (1) SE516995C2 (en)
WO (1) WO2002057591A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004067902A1 (en) * 2003-01-30 2004-08-12 Atlas Copco Rock Drills Ab Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066276A (en) * 1934-06-12 1936-12-29 Western Union Telegraph Co Chuck or coupling
WO1998030806A1 (en) * 1997-01-02 1998-07-16 Vanderdrift Richard W Locking clamp nut

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066276A (en) * 1934-06-12 1936-12-29 Western Union Telegraph Co Chuck or coupling
WO1998030806A1 (en) * 1997-01-02 1998-07-16 Vanderdrift Richard W Locking clamp nut

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004067902A1 (en) * 2003-01-30 2004-08-12 Atlas Copco Rock Drills Ab Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine
JP2006517010A (en) * 2003-01-30 2006-07-13 アトラス コプコ ロツク ドリルス アクチボラグ Coupling sleeve to connect threaded rock bolt to impact rock drill
CN100335740C (en) * 2003-01-30 2007-09-05 阿特拉斯科普科凿岩机股份公司 Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine

Also Published As

Publication number Publication date
SE0100152L (en) 2002-04-02
SE516995C2 (en) 2002-04-02
SE0100152D0 (en) 2001-01-19

Similar Documents

Publication Publication Date Title
CA2192285A1 (en) Drill bit
SE9904709L (en) Tool tip and tool body assembly
JP4568715B2 (en) Coupling sleeve to connect threaded rock bolt to impact rock drill
US20020050362A1 (en) Guide tube of a drill string configured to facilitate unscrewing thereof from a member of the drill string
JP4083738B2 (en) Threaded joint of drill string for impact rock drilling
SE9501096D0 (en) Rock drilling tools
CN102248205B (en) Quick transition joint
US3690390A (en) Threaded joint type connection for a drill in a hammer drill
WO2002057591A1 (en) Coupling sleeve for connection of a threaded rock bolt to an impact rock drilling machine
KR20090108205A (en) The Taper Holder for Cutting Tool
ZA200502777B (en) Device for connecting two elements having a substantially cylindrical or tubular shape.
KR20020074778A (en) Insert drill
CN210046305U (en) Split type machine tool body
CZ200459A3 (en) Connecting an anchoring rod to a drilling tool
CN220748172U (en) Drilling rod connection structure of drilling stake machine
JP3818196B2 (en) Throw-away drill
CN217872652U (en) PDC drill bit
CN210317188U (en) Impact drill rod
CN216263668U (en) Axial anti-drop staple bolt formula modularization drill bit
CN219786665U (en) Split straight shank twist drill
CN219808955U (en) Drill bit for power drilling tool
CN213269807U (en) Special petroleum drill pipe joint for special buckle
WO1997032109A1 (en) Dual pitch connecting joint
KR200367777Y1 (en) Connection arbor of tool for hand drilling machine
KR200333566Y1 (en) inserted drill

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP