EP0105047B1 - Schrämkopf für Streckenvortriebsmaschinen - Google Patents
Schrämkopf für Streckenvortriebsmaschinen Download PDFInfo
- Publication number
- EP0105047B1 EP0105047B1 EP83890140A EP83890140A EP0105047B1 EP 0105047 B1 EP0105047 B1 EP 0105047B1 EP 83890140 A EP83890140 A EP 83890140A EP 83890140 A EP83890140 A EP 83890140A EP 0105047 B1 EP0105047 B1 EP 0105047B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting head
- channels
- bores
- axially extending
- extending
- 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
Links
- 230000005641 tunneling Effects 0.000 title claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 9
- 238000011109 contamination Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
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
- E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
- E21D9/102—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom by a longitudinally extending boom being pivotable about a vertical and a transverse axis
- E21D9/1026—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom by a longitudinally extending boom being pivotable about a vertical and a transverse axis the tool-carrier being rotated about a transverse axis
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/23—Distribution of spraying-fluids in rotating cutter-heads
Definitions
- the invention relates to a cutting head for tunnel boring machines with chisels arranged on the circumference thereof and outlet nozzles for the exit of cooling water, which via a feed line running within the cutting head in the axial direction, radial bores, lines to a cavity extending in the axial direction of the cutting head and over radial bores opening into the cavity to the outlet nozzles can be supplied with water.
- the outlet nozzles for the outlet of cooling water can also be used for the spraying of water for the purpose of depositing dust and a number of designs have become known in which such outlet nozzles are connected to the bit holder. With these designs, the water supply can be blocked or released by valves interacting with the chisels, and other congestions for the supply of water are also possible.
- tubular water supply channels which open at the end face, in the cutting discs of a line drilling machine and into which nozzles can be inserted and screwed.
- the direction of advance of such cutting rollers is such that the outer surface and in no case the end face is exposed to mechanical stress.
- the invention now aims to provide a cutting head of the type mentioned, in which it is easily possible to clean the cavities for the water supply to the nozzles.
- the invention essentially consists in the fact that the cavity running within the cutting head is formed by channels which are continuous in the axial direction of the cutting head and which are connected to the axial water supply bore by essentially radial bores and into which radial bores open to the outlet nozzles, and that the axially continuous channels on at least one end face of the cutting head open into at least one bore aligned with these channels, which can be locked with releasable locking pieces.
- the channels for the distribution of water to the nozzles are designed as continuous channels in the axial direction of the cutting head, which open into bores aligned with these channels, a cleaning rod can be introduced after removal of the closure piece or pieces and in this way achieve cleaning .
- the closure piece can be formed on the front side of the cutting head facing away from the cutting arm by a releasably fixed end disk of the cutting head.
- the sealing of the channels becomes complex with such a design.
- the training is therefore made for high water supply pressure in an advantageous manner that the through channels in the axial direction on at least one end face of the cutting head open into at least one bore aligned with these channels, which can be locked with separate detachable closure pieces for each bore.
- bores are provided on both end faces of the cutting head with the axial channels, so that dirt particles can be pierced with a cleaning rod over the entire length of the bores and can be discharged on the opposite end face through the cleaning rod.
- channels for the distribution of the water to the radial outlet nozzles are designed as bores which go through the entire axial length of the cutting head, since in such a design the wall area of the wall area due to the constant internal diameter of the channels channels designed as bores can be completely cleared.
- FIG. 1 shows a cross section through a cutting head according to the prior art
- FIG. 2 shows an analog section through an embodiment according to the invention
- FIG. 3 shows a section analogous to FIG. 1 through a modified embodiment.
- the cutting head 1 is composed of discs 2 welded together and is rotatably mounted on a cutting arm, not shown.
- the last stage of the reduction gear is dashed with 3 indicated.
- the cutting head 1 is mounted on a carrier 4 connected to the cutting arm via roller bearings 5.
- the water is first supplied via channels 6 in the carrier 4 and opens into a distributor space 7, via which it is guided via an axial feed line 8, which is sealed accordingly, and radial lines 9, into which distributor cavities 10 extending in the axial direction of the cutting head are guided.
- the face plate 11 of the cutting head 1 is connected to the base body of the cutting head by screws.
- the water passes from the annular space 10 via essentially radial bores 13 to the outlet nozzles, which can be accommodated in the bit holder.
- At least three holes 14 are provided in the axial direction of the cutting head instead of the annular space 10, which are closed on both sides with closure pieces 15.
- the design as shown in the upper part of FIG. 2, can also be such that the bore 14 is divided into two bores 16 which are connected to one another via a radial bore 17. Even with such an embodiment, the bores 14 and 16 can still be cleaned after the closure pieces 15 have been loosened.
- the water supply to these bores 14 and 16, of which at least three are arranged distributed in the circumferential direction of the cutting head 1, can take place essentially analogously to the embodiment according to FIG. 1 and is not shown again.
- the individual disks 2 are welded to one another with their end faces, one disk 2 each having a recess which extends in the radial direction indicated by the arrow 18 and which extends over a partial region a.
- This partial area a is larger than the diameter b of the bores 14 and 16 and is filled by melting an electrode when the individual disks 2 are connected.
- the holes 14 and 16 are now passed through the welds, which are designated by 19, so that there is a smooth inner surface as the wall of the hole.
- the closure pieces 15 have a screw thread 20, which is screwed into a corresponding internal thread 21 on the end faces of the bores 14 and 16, respectively.
- Such a design is also suitable for the supply of pressurized water due to the lower pressure which becomes effective in the radial direction a pressure of up to 300 bar to the outlet nozzles without the risk of mechanical stress on the welds
- FIG. 3 shows a further embodiment of a cutting head 1, which in turn is composed of individual disks 2.
- the water is in turn supplied via an axial feed line 8 shown in its end region.
- the radial lines to the distributor cavities 10 extending in the axial direction of the cutting head are again designated by 9.
- disks 2 are provided with holes 22 penetrating these disks, the disk 2 adjacent to the cutting arm in turn carrying a closure piece 15.
- the front disk 23, in which the radial bore 9 extends, forms the closure piece on the other side of the channels 10.
- the disks 2 are welded to one another with the interposition of disks 24, with wall parts 25 being welded inwards in order to limit the channels in the radial direction, which wall parts are formed in the circumferential direction of the cutting head for reasons of easier assembly.
- the bores 22 of the disks 2 are aligned in the axial direction of the cutting head indicated by the arrow 26 and, just as in the embodiment according to FIG. 2, allow the introduction of a cleaning rod for the purpose of
- the face plate 23 is releasably connected via a sealing element 27 to the adjacent plate 2 of the cutting head, so that after removing the front face plate and the rear closure piece 15 as well as in the through bore 14 in FIG. 2, the deposits at the respective insertion point of the Cleaning rod facing away can be pushed through and deployed.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Nozzles (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT3311/82 | 1982-09-03 | ||
AT0331182A AT375152B (de) | 1982-09-03 | 1982-09-03 | Schraemkopf fuer streckenvortriebsmaschinen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0105047A1 EP0105047A1 (de) | 1984-04-04 |
EP0105047B1 true EP0105047B1 (de) | 1986-07-23 |
Family
ID=3548588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83890140A Expired EP0105047B1 (de) | 1982-09-03 | 1983-08-31 | Schrämkopf für Streckenvortriebsmaschinen |
Country Status (17)
Country | Link |
---|---|
US (1) | US4568127A (hu) |
EP (1) | EP0105047B1 (hu) |
JP (1) | JPS5980898A (hu) |
AT (1) | AT375152B (hu) |
AU (1) | AU562403B2 (hu) |
CA (1) | CA1200823A (hu) |
DE (1) | DE3364720D1 (hu) |
ES (1) | ES8406625A1 (hu) |
HU (1) | HU187117B (hu) |
IN (1) | IN158702B (hu) |
MA (1) | MA19890A1 (hu) |
NZ (1) | NZ205260A (hu) |
PL (1) | PL141543B1 (hu) |
RO (1) | RO88129A (hu) |
SU (1) | SU1402267A3 (hu) |
YU (1) | YU179383A (hu) |
ZA (1) | ZA835852B (hu) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT378036B (de) * | 1983-04-11 | 1985-06-10 | Voest Alpine Ag | Verfahren zum bespruehen der meissel und/oder der ortsbrust mit druckfluessigkeit sowie vorrichtung zur durchfuehrung dieses verfahrens |
DE3414198A1 (de) * | 1984-04-14 | 1985-10-24 | Charbonnages De France, Paris | Schneidkopf einer abtragsmaschine fuer gestein, insbesondere einer teilschnittvortriebsmaschine |
DE3414195A1 (de) * | 1984-04-14 | 1985-10-24 | Charbonnages De France, Paris | Drehkoerper eines schneidkopfes einer teilschnittvortriebsmaschine |
DE3544111A1 (de) * | 1985-12-13 | 1987-06-19 | Eickhoff Geb | Mit duesen versehene schneidwalze fuer walzenlader oder teilschnittmaschinen |
GB8928133D0 (en) * | 1989-12-13 | 1990-02-14 | Hydra Tools Int Plc | Rotary cutting head |
US6857706B2 (en) * | 2001-12-10 | 2005-02-22 | Placer Dome Technical Services Limited | Mining method for steeply dipping ore bodies |
US7695071B2 (en) * | 2002-10-15 | 2010-04-13 | Minister Of Natural Resources | Automated excavation machine |
US7192093B2 (en) * | 2004-04-23 | 2007-03-20 | Placer Dome Technical Services Limited | Excavation apparatus and method |
EP2811113A1 (en) * | 2013-06-06 | 2014-12-10 | Caterpillar Global Mining Europe GmbH | Modular cutting head |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB996962A (en) * | 1960-09-20 | 1965-06-30 | Coal Industry Patents Ltd | Rotary cutter unit for a mineral-mining machine |
GB1110763A (en) * | 1963-10-29 | 1968-04-24 | Coal Industry Patents Ltd | Dust suppression means for use with mining machines |
GB1154873A (en) * | 1966-09-07 | 1969-06-11 | Trevor George Clarke | Improvements in or relating to Mineral Cutting Apparatus |
AT281904B (de) * | 1968-07-16 | 1970-06-10 | Atlas Copco Mct Ab | Einrichtung zur Messerkühlung bei Tunnel- bzw. Stollenvortriebsmaschinen, Gewinnungsmaschinen od.dgl. |
FR2242558A1 (en) * | 1974-06-24 | 1975-03-28 | Sscm | Rotary drum coal cutting machine - water is supplied intermittently to spray nozzles between cutters |
GB2016556B (en) * | 1978-03-17 | 1982-05-12 | Coal Ind | Mineral mining |
US4219239A (en) * | 1978-10-30 | 1980-08-26 | Krampe & Co. | Mining auger |
AT359453B (de) * | 1979-02-09 | 1980-11-10 | Voest Alpine Ag | Schraemkopf |
DE2940028C2 (de) * | 1979-10-03 | 1982-10-21 | Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum | Gewinnungsmaschine für den Untertagebergbau, insbesondere Walzenschrämmaschine |
-
1982
- 1982-09-03 AT AT0331182A patent/AT375152B/de not_active IP Right Cessation
-
1983
- 1983-08-03 IN IN971/CAL/83A patent/IN158702B/en unknown
- 1983-08-04 AU AU17602/83A patent/AU562403B2/en not_active Ceased
- 1983-08-08 HU HU832796A patent/HU187117B/hu not_active IP Right Cessation
- 1983-08-09 ZA ZA835852A patent/ZA835852B/xx unknown
- 1983-08-09 CA CA000434228A patent/CA1200823A/en not_active Expired
- 1983-08-15 NZ NZ205260A patent/NZ205260A/en unknown
- 1983-08-19 SU SU833633949A patent/SU1402267A3/ru active
- 1983-08-25 US US06/526,278 patent/US4568127A/en not_active Expired - Fee Related
- 1983-08-30 PL PL1983243562A patent/PL141543B1/pl unknown
- 1983-08-31 DE DE8383890140T patent/DE3364720D1/de not_active Expired
- 1983-08-31 EP EP83890140A patent/EP0105047B1/de not_active Expired
- 1983-09-01 YU YU01793/83A patent/YU179383A/xx unknown
- 1983-09-01 RO RO83111977A patent/RO88129A/ro unknown
- 1983-09-02 ES ES525332A patent/ES8406625A1/es not_active Expired
- 1983-09-02 MA MA20113A patent/MA19890A1/fr unknown
- 1983-09-02 JP JP58160589A patent/JPS5980898A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
PL243562A1 (en) | 1984-04-24 |
EP0105047A1 (de) | 1984-04-04 |
ZA835852B (en) | 1984-04-25 |
ES525332A0 (es) | 1984-08-01 |
AU562403B2 (en) | 1987-06-11 |
HU187117B (en) | 1985-11-28 |
IN158702B (hu) | 1987-01-10 |
RO88129A (ro) | 1985-11-30 |
AU1760283A (en) | 1984-03-08 |
JPS5980898A (ja) | 1984-05-10 |
MA19890A1 (fr) | 1984-04-01 |
CA1200823A (en) | 1986-02-18 |
PL141543B1 (en) | 1987-08-31 |
DE3364720D1 (en) | 1986-08-28 |
US4568127A (en) | 1986-02-04 |
NZ205260A (en) | 1986-03-14 |
SU1402267A3 (ru) | 1988-06-07 |
ATA331182A (de) | 1983-11-15 |
AT375152B (de) | 1984-07-10 |
RO88129B (ro) | 1985-10-31 |
ES8406625A1 (es) | 1984-08-01 |
YU179383A (en) | 1988-02-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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