EP0105047B1 - Tête de coupe pour machine de traçages en veine - Google Patents

Tête de coupe pour machine de traçages en veine Download PDF

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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
Application number
EP83890140A
Other languages
German (de)
English (en)
Other versions
EP0105047A1 (fr
Inventor
Gottfried Traumüller
Wilfried Maier
Franz Dipl.-Ing. Schöffmann
Herwig Wrulich
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0105047A1 publication Critical patent/EP0105047A1/fr
Application granted granted Critical
Publication of EP0105047B1 publication Critical patent/EP0105047B1/fr
Expired legal-status Critical Current

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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)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Claims (4)

1.- Tête de havage (1) pour machine à creuser des galeries, comprenant des pics disposés à sa périphérie et des buses de sortie pour la sortie de l'eau de refroidissement, qui peuvent être alimentées en eau par l'intermédiaire d'une conduite d'alimentation (8) s'étendant intérieurement à la tête de havage (1) et dans la direction axiale de celle-ci, par des perçages radiaux, des conduites débouchant dans une cavité (10) s'étendant dans la direction axiale de la tête de havage (1) et par des perçages radiaux débouchant dans la cavité (10) vers les buses de sortie, caractérisée en ce que la cavité (10) intérieure à la tête de havage (1) est formée par des canaux (14, 16; 22) traversant axialement la tête de havage (1) qui sont reliés au perçage axial (8) d'acheminement de l'eau par des perçages (9) sensiblement radiaux et dans lesquels débouchent des alésages radiaux (13) menant aux buses de sortie, et en ce que les canaux (14, 16; 22) traversant dans la direction axiale débouchent, à au moins une surface frontale de la tête de havage (1), dans au moins un perçage aligné sur ces canaux, qui peut être bouché par des obturateurs amovibles (15) (Fig. 1, Fig. 3).
2.- Tête de havage selon la revendication 1, caractérisée en ce que l'obturateur (15) prévu du côté frontal de la tête de havage (1) qui est à l'opposé du bras de havage est formé par un disque frontal (23) de la tete de havage (1) qui est fixée de façon amovible (Fig. 3). '
3.- Tête de havage selon la revendication 1 ou 2, caractérisée en ce que les canaux (14, 16; 22) traversants dans la direction axiale débouchent dans des perçages alignés entre eux aux deux faces frontales de la tête de havage (1), qui présentent un filetage intérieur dans lequel on peut visser les obturateurs amovibles (15) (Fig. 2; Fig. 3).
4.- Tête de havage selon l'une des revendications 1, 2 et 3, caractérisée en ce que les canaux (14, 16; 22) traversants dans la direction axiale sont réalisés sous la forme de perçages sur toute leur longueur axiale (Fig. 2, Fig. 3).
EP83890140A 1982-09-03 1983-08-31 Tête de coupe pour machine de traçages en veine Expired EP0105047B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0331182A AT375152B (de) 1982-09-03 1982-09-03 Schraemkopf fuer streckenvortriebsmaschinen
AT3311/82 1982-09-03

Publications (2)

Publication Number Publication Date
EP0105047A1 EP0105047A1 (fr) 1984-04-04
EP0105047B1 true EP0105047B1 (fr) 1986-07-23

Family

ID=3548588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83890140A Expired EP0105047B1 (fr) 1982-09-03 1983-08-31 Tête de coupe pour machine de traçages en veine

Country Status (17)

Country Link
US (1) US4568127A (fr)
EP (1) EP0105047B1 (fr)
JP (1) JPS5980898A (fr)
AT (1) AT375152B (fr)
AU (1) AU562403B2 (fr)
CA (1) CA1200823A (fr)
DE (1) DE3364720D1 (fr)
ES (1) ES8406625A1 (fr)
HU (1) HU187117B (fr)
IN (1) IN158702B (fr)
MA (1) MA19890A1 (fr)
NZ (1) NZ205260A (fr)
PL (1) PL141543B1 (fr)
RO (1) RO88129A (fr)
SU (1) SU1402267A3 (fr)
YU (1) YU179383A (fr)
ZA (1) ZA835852B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
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
WO2005106137A2 (fr) * 2004-04-23 2005-11-10 Placer Dome Technical Services Limited Excavatrice et procede d'excavation
EP2811113A1 (fr) * 2013-06-06 2014-12-10 Caterpillar Global Mining Europe GmbH Tête de coupe modulaire

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ES525332A0 (es) 1984-08-01
RO88129A (fr) 1985-11-30
YU179383A (en) 1988-02-29
NZ205260A (en) 1986-03-14
PL243562A1 (en) 1984-04-24
CA1200823A (fr) 1986-02-18
PL141543B1 (en) 1987-08-31
AU1760283A (en) 1984-03-08
HU187117B (en) 1985-11-28
IN158702B (fr) 1987-01-10
US4568127A (en) 1986-02-04
EP0105047A1 (fr) 1984-04-04
SU1402267A3 (ru) 1988-06-07
ATA331182A (de) 1983-11-15
RO88129B (ro) 1985-10-31
ZA835852B (en) 1984-04-25
JPS5980898A (ja) 1984-05-10
AU562403B2 (en) 1987-06-11
AT375152B (de) 1984-07-10
MA19890A1 (fr) 1984-04-01
ES8406625A1 (es) 1984-08-01
DE3364720D1 (en) 1986-08-28

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