EP0105047B1 - Schrämkopf für Streckenvortriebsmaschinen - Google Patents

Schrämkopf für Streckenvortriebsmaschinen Download PDF

Info

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)
French (fr)
Other versions
EP0105047A1 (de
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/de
Application granted granted Critical
Publication of EP0105047B1 publication Critical patent/EP0105047B1/de
Expired legal-status Critical Current

Links

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)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP83890140A 1982-09-03 1983-08-31 Schrämkopf für Streckenvortriebsmaschinen Expired EP0105047B1 (de)

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

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
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)

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

Similar Documents

Publication Publication Date Title
DE3039633C2 (de) Drehbohrmeißel, insbesondere für Tiefbohrungen
DE2854307C2 (xx)
DE69704931T2 (de) Gesteinbohrer und werkzeug
EP0157395A2 (de) Wirbelstrahldüse als hydraulisches Arbeitswerkzeug
CH678290A5 (xx)
EP0105047B1 (de) Schrämkopf für Streckenvortriebsmaschinen
EP0563561B1 (de) Bohrkrone zum Überlagerungsbohren
DE2810606C2 (de) Meißel für ein im Gestein schlagend arbeitendes Brechwerkzeug
EP0161465A1 (de) Drehkörper eines Schneidkopfes einer Teilschnittvortriebsmaschine
DE3214165A1 (de) Gesteinsschneidmeissel und vorrichtung zum festhalten eines mit einem schaft versehenen gesteinsschneidmeissels
EP0108046B1 (de) Schrämkopf für Streckenvortriebsmaschinen sowie Verfahren zu seiner Herstellung
DE69219368T2 (de) Bohrgerät
DE3501546A1 (de) Fluessigkeitszufuehrung fuer die schraemwalze einer gewinnungsmaschine
DE3336626C2 (xx)
DE3128049C1 (de) Duesenschutz fuer eine Spruehduese einer Schraemwalze des Bergbaus
DE2410217C2 (de) Drehbohrwerkzeug zum hydraulischen Bohren von Löchern in unterirdische Formationen
DE4121674C1 (xx)
DE3337931C1 (de) Werkzeugkoerper fuer ein drehbares Bohrwerkzeug
DE3511645C2 (de) Straßenbearbeitungsmaschine
DE2410236C3 (de) Drehbohrwerkzeug für Gesteinsformationen
DE4102563C1 (xx)
DE2606173C2 (xx)
DE3338449C2 (xx)
DE3544493C1 (en) Arrangement for the spray-liquid supply at a shearer drum
DE4204542A1 (de) Gehaeuse zur aufnahme eines schaftmeissels

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB LI SE

17P Request for examination filed

Effective date: 19840823

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE FR GB LI SE

REF Corresponds to:

Ref document number: 3364720

Country of ref document: DE

Date of ref document: 19860828

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19880831

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880831

Ref country code: CH

Effective date: 19880831

Ref country code: BE

Effective date: 19880831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19880901

BERE Be: lapsed

Owner name: VOEST-ALPINE A.G.

Effective date: 19880831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19890428

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19890503

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 83890140.3

Effective date: 19890712