WO1991011588A1 - Ring cutter for tunnel drilling in rock - Google Patents
Ring cutter for tunnel drilling in rock Download PDFInfo
- Publication number
- WO1991011588A1 WO1991011588A1 PCT/NO1990/000018 NO9000018W WO9111588A1 WO 1991011588 A1 WO1991011588 A1 WO 1991011588A1 NO 9000018 W NO9000018 W NO 9000018W WO 9111588 A1 WO9111588 A1 WO 9111588A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cutter ring
- rotation body
- ring
- gaps
- cutter
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 7
- 239000011435 rock Substances 0.000 title claims abstract description 6
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
- E21D9/104—Cutting tool fixtures
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/12—Roller bits with discs cutters
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
Definitions
- the present invention is related to a ring cutter for tunnel drilling in rock, which cutter is secured to the rotation, body of the cutter ring with a dovetail shaped cross section.
- Tunnel drilling machines or full face machines .are 0 used with idle journalled ring cutters distributed on the surface of the cutter head, each ring thereby being exposed to strong wear as well as some deformation.
- Replacing such cutter rings in known embodiments mean to dis antel the cutter to remove the cutter ring itself.
- Some known cutter rings comprise s several segments, which embodiment however are not practical in use of certain rock types. With present technique there complete rings are used which therefore lead to relative comprehensive and time consuming replacement work which for the operator also means heavy working.
- the cutter rings according to the present invention a cutter ring in two parts is provided which also is suitable for practical use and additionally may be replaced within a very short time. This is achieved with the cutter ring according to the resent invention as defined with the features of the accompaning claims.
- Fig. 1 discloses an axial section of a cutter ring bearing and Fig. 2 discloses a side view of the bearing in Fig. 1.
- a rotation body 2 is journalled on a shaft 6 secured to the cutter head of the drilling machine.
- the outer circumference of * the rotation body 2 is provided with a dovetail groove which in one side is expanded to a key way.
- In the dow tail groove are arranged diametrically opposed, two radially inwardly protuding pins 6, adapted for receipt in corresponding holes in one cutter ring half 1.
- the holes 9 being arranged in the middle of the cutter ring halfs.
- the cutter ring halfs 1 By inserting the two cutter ring halfs 1 in the dovetail groove and with the pin 6 protuding into the hole 9, the cutter ring halfs 1 may be displaced axially by a corresponding shape of the holes 9 in such a way that the cutter ring halfs 1 may abut against the one half of the dovetail groove in the rotation body 2.
- two gaps 3 with a dimention between 1,5 and 8 mm, preferably between 2 and 4 mm are provided.
- the gaps 3 have such a size that the cutter ring halfs 1 can be manufactured by simple cutting of a complete cutter ring and the gap thereby is not that large that detrimental strokes .will occure on the edge which is well known to be the case by larger gaps.
- the gaps enable the cutter ring 1 to be deformed to a certain degree without closing the gap and thereby incurring internal stress.
- the cutter ring halfs 1 are secured to the rotation body 2 by clamping rings 4 comprising two equal halfs where the divition 8 between the two halfs preferably are offset 30° in relation to the gaps 3.
- the clamping ring 4 preferably has a wedge shaped cross section where one of the side surfaces is abutting against the cutter ring 1 and the other surface is abutting against a corresponding inclined surface in the rotation body 2.
- the cutter ring is secured to the rotation body 2 by bolts 5 in axial planes 7 being offset 60° in relation to each other, with one of the planes 7 in the gaps 3.
- the two pins 6 • ensures that the cutter ring 1 will not rotate in relation to the rotation body 2 and the clamping ring 4. 0
- This mantling and assembling of a new cutter ring 1 is made very easy by removing the bolts 5 and the two halfs of the clamping ring 4. Thereafter the cutter ring halfs 1 easily can be replaced and the two halfs of the clamping ring are again tightened by the bolts 5 with a force large enough to fix 5 the cutter ring 1 to the rotation body 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002074531A CA2074531A1 (en) | 1990-01-26 | 1990-01-26 | Ring cutter for tunnel drilling in rock |
EP90901911A EP0511954A1 (en) | 1990-01-26 | 1990-01-26 | Ring cutter for tunnel drilling in rock |
US07/916,074 US5253723A (en) | 1990-01-26 | 1990-01-26 | Ring cutter for tunnel drilling in rock |
PCT/NO1990/000018 WO1991011588A1 (en) | 1990-01-26 | 1990-01-26 | Ring cutter for tunnel drilling in rock |
KR1019920701695A KR920703962A (en) | 1990-01-26 | 1990-01-26 | Link Cutter for Rock Tunnel Excavation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002074531A CA2074531A1 (en) | 1990-01-26 | 1990-01-26 | Ring cutter for tunnel drilling in rock |
PCT/NO1990/000018 WO1991011588A1 (en) | 1990-01-26 | 1990-01-26 | Ring cutter for tunnel drilling in rock |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991011588A1 true WO1991011588A1 (en) | 1991-08-08 |
Family
ID=25675364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1990/000018 WO1991011588A1 (en) | 1990-01-26 | 1990-01-26 | Ring cutter for tunnel drilling in rock |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0511954A1 (en) |
WO (1) | WO1991011588A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0957232A1 (en) * | 1998-05-13 | 1999-11-17 | BOART LONGYEAR GMBH & CO. KG HARTMETALLWERKZEUGFABRIK | Roller bit with segemented cutting rings for tunneling machines |
DE19821404C2 (en) * | 1998-05-13 | 2001-09-13 | Sauer Klaus Dieter | Roller chisels for tunnel boring machines |
CN103899260A (en) * | 2014-04-17 | 2014-07-02 | 胡勇 | Clamping body with three slopes distributed in X-shaped mode and two-way self-locking slip |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3982595A (en) * | 1972-07-24 | 1976-09-28 | Dresser Industries, Inc. | Rock boring cutter with replaceable cutting elements |
US4004645A (en) * | 1974-07-31 | 1977-01-25 | Gwilym James Rees | Disc cutting units for use on rock boring machines |
WO1988005117A1 (en) * | 1986-12-30 | 1988-07-14 | Stein Narvestad A/S | Ring cutter for tunnel and shaft drilling in rock |
-
1990
- 1990-01-26 WO PCT/NO1990/000018 patent/WO1991011588A1/en not_active Application Discontinuation
- 1990-01-26 EP EP90901911A patent/EP0511954A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3982595A (en) * | 1972-07-24 | 1976-09-28 | Dresser Industries, Inc. | Rock boring cutter with replaceable cutting elements |
US4004645A (en) * | 1974-07-31 | 1977-01-25 | Gwilym James Rees | Disc cutting units for use on rock boring machines |
WO1988005117A1 (en) * | 1986-12-30 | 1988-07-14 | Stein Narvestad A/S | Ring cutter for tunnel and shaft drilling in rock |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0957232A1 (en) * | 1998-05-13 | 1999-11-17 | BOART LONGYEAR GMBH & CO. KG HARTMETALLWERKZEUGFABRIK | Roller bit with segemented cutting rings for tunneling machines |
DE19821404C2 (en) * | 1998-05-13 | 2001-09-13 | Sauer Klaus Dieter | Roller chisels for tunnel boring machines |
US6343842B1 (en) | 1998-05-13 | 2002-02-05 | Boart Longyear Gmbh & Co. Kg Hartmetallwerkzeugfabrik | Roller bit for tunnel-driving machines with segmented cutting rings |
CN103899260A (en) * | 2014-04-17 | 2014-07-02 | 胡勇 | Clamping body with three slopes distributed in X-shaped mode and two-way self-locking slip |
Also Published As
Publication number | Publication date |
---|---|
EP0511954A1 (en) | 1992-11-11 |
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