EP0189393A1 - Schrammaschine - Google Patents

Schrammaschine Download PDF

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Publication number
EP0189393A1
EP0189393A1 EP86890010A EP86890010A EP0189393A1 EP 0189393 A1 EP0189393 A1 EP 0189393A1 EP 86890010 A EP86890010 A EP 86890010A EP 86890010 A EP86890010 A EP 86890010A EP 0189393 A1 EP0189393 A1 EP 0189393A1
Authority
EP
European Patent Office
Prior art keywords
cutting
end plate
cutting head
machine according
water supply
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.)
Withdrawn
Application number
EP86890010A
Other languages
German (de)
English (en)
French (fr)
Inventor
Alfred Zitz
Wilfried Maier
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 EP0189393A1 publication Critical patent/EP0189393A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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 machine with a cutting arm which is rotatable in the vertical direction and laterally pivotable about cutting heads which are rotatable transversely to the axis of the cutting arm, the rotary drive of which is carried out via a cutting gear, in which the cutting heads are equipped with chisels and nozzles for spraying water and lines are provided for the supply of water to the nozzles.
  • the cutting heads are equipped with chisels and nozzles for spraying water and lines are provided for the supply of water to the nozzles.
  • the invention now aims to completely bypass the critical area of the transmission when supplying water for supplying the nozzles of a cutting head.
  • the invention essentially consists in that the supply line for the water opens into a face plate mounted rotatably about the axis of rotation of the cutting heads, that the water supply line is sealingly connected to an axial cavity of the cutting head via an essentially axial bore of the face plate and that the axial cavity of the cutting head is connected to the nozzles via channels inside the cutting head.
  • the design according to the invention also makes it possible to implement any sector controls, for which the design is preferably such that the axial bore of the face plate opens into a sleeve that is non-rotatably connected to the face plate and is mounted in the axial cavity of the cutting head, the sleeve in the axial cavity of the cutting head is mounted in a sealing manner and has at least one radial opening which, when the cutting head rotates, is aligned with channels of the cutting head for the supply of water to the nozzles of the cutting head.
  • the two components sleeve and face plate can be structurally separated from one another and are connected according to a preferred development of the invention by sealingly inserting an axially limitedly displaceable pipe piece in the axial bore of the face plate, the free end of which engages in a cylindrical bore of the sleeve.
  • an axially limitedly displaceable pipe piece in the axial bore of the face plate, the free end of which engages in a cylindrical bore of the sleeve.
  • the end plate is advantageously mounted on the cutting head via radial bearings designed as self-aligning bearings with spherical bearing surfaces. This measure allows slight inclination of the face plate relative to the cutting head and thus reduces the mechanical stress on the water supply lines arranged outside the cutting head.
  • the water supply line can advantageously be held in a support that is articulated on the cutting arm in a plane that is articulated in a plane parallel to the longitudinal direction of the cutting arm, which makes it possible to carry out maintenance work, in particular when replacing sealing elements, by simply folding down the water supply line.
  • the carrier of the water supply line can be designed as a swing arm on the cutting arm about an axis crossing the axis of rotation of the cutting heads, which has fenders for the water supply line.
  • the water supply line advantageously adjoins the side of the face plate, preferably the water supply line being connected off-center to the face plate and via an im essential radial bore of the end plate is connected to the axial bore thereof.
  • the water supply line advantageously encloses an angle of more than 45 ° at the connection point to the end plate with the axis of rotation and is angled immediately outside the envelope of the cutting head in the direction of the tangents to the envelope.
  • Rota tion axis of the cutting head containing plane angled water supply line is connected via a releasable coupling to the line held in the carrier connected to the cutting head and is preferably formed at least up to the coupling point as a steel tube.
  • the end plate advantageously has an outer projecting annular rim which bears against the cutting head via a mechanical seal.
  • the face plate can be staggered within certain limits due to the self-aligning bearing, and in order to keep the bush inside the axial cavity of the cutting head free of eccentric loads, the bush is advantageously coupled to the face plate via claws.
  • the face plate itself can advantageously be mounted on the cutting head near the ring rim via a self-aligning bearing supported on the outside of the face plate.
  • FIG. 1 shows a schematic top view of a cutting machine
  • FIG. 2 shows an enlarged detail view of a face plate with the water supply for the cutting head
  • FIG. 3 shows a partial top view of a cutting head with the water supply fixed to the cutting arm.
  • a cutting machine is designated 1
  • the cutting arm 2 is pivotally articulated on a swivel mechanism 3 in the vertical direction and in the sense of the double arrow 4 in the lateral direction.
  • the outermost end of the cutter arm 2 laterally carries two rotatable cutter heads 5.
  • the water is fed into the interior of the cutter head at the point schematically designated by 6.
  • the inside of the cutting head is dashed in each case a last reduction stage of the gear for driving the cutting heads 5 indicated and designated 7.
  • the cutting head 5 is usually made up of several disks and the outer end disk provided according to the invention and facing away from the cutting arm 2 is shown enlarged in FIG. 2.
  • the face plate in FIG. 2 is designated 8 and has a connection 10 for the water supply line outside its axis 9.
  • the connection 10 initially merges via a radial channel 11 into an axial bore 12 in the face plate.
  • the face plate 8 has an annular rim 13 which is supported on the base body 15 of the cutting head with the interposition of a mechanical seal 14.
  • the bearing of the end plate 8 is designated 16 and designed as a self-aligning bearing.
  • the axial bore 12 opens in the interior of the cutting head body 15 into a bushing 17, a sealing tubular intermediate piece 18 being provided which serves to avoid eccentric stresses on the bushing 17.
  • the sleeve 17 is coupled to the end plate 8 via claws 19, so that when the cutting head body 15 is rotating and the end plate 8 is stationary, the sleeve 17 is also held in a rotationally fixed manner.
  • the bushing 17 has at least one radial opening 20, which is aligned with the rotation of the cutter head body 15 with radial channels 21 of the cutter head body 15, via which the distribution via channels 22 and 23 to the nozzles of the cutter head takes place.
  • the fixed bearing shell of the self-aligning bearing 16, which is held in the cutter body 15, is secured in its position by a ring 24 screwed to the cutter body.
  • the sleeve 17 has sealing surfaces interacting with sealing elements 25.
  • the tubular intermediate piece is immersed in a cylindrical cavity of the sleeve and has seals 26 at its ends.
  • a water supply line 28 is fixed to the cutting arm 2, which is guided over a tab 29 and is angled outside the envelope of the cutting head 5 to the end plate 8.
  • the area of the water supply line 28 which extends outside the envelope curve of the cutting head is secured by mudguards 30 and has a coupling piece 31 near the face plate 8.
  • the mudguards 30 together with the carrier 32 form a rocker which can be pivoted about the axis 33 in the bracket 29.
  • the water supply line 28 After loosening the coupling part 31, the water supply line 28 can thus be folded down, the operating position being secured by a bolt 34 in a further tab.
  • the water supply line merges outside the envelope curve into a partial region 35, which adjoins the end plate 8 off-center at an angle of approximately 45 ° to the axis 9 of the end plate 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP86890010A 1985-01-21 1986-01-21 Schrammaschine Withdrawn EP0189393A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT139/85 1985-01-21
AT0013985A AT381561B (de) 1985-01-21 1985-01-21 Einrichtung zur zufuehrung von wasser zu den schraemkoepfen einer schraemmaschine

Publications (1)

Publication Number Publication Date
EP0189393A1 true EP0189393A1 (de) 1986-07-30

Family

ID=3482558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890010A Withdrawn EP0189393A1 (de) 1985-01-21 1986-01-21 Schrammaschine

Country Status (11)

Country Link
US (1) US4696518A (nl)
EP (1) EP0189393A1 (nl)
AT (1) AT381561B (nl)
AU (1) AU5170485A (nl)
ES (1) ES8702573A1 (nl)
HU (1) HUT42580A (nl)
IN (1) IN163100B (nl)
MA (1) MA20612A1 (nl)
PL (1) PL257562A1 (nl)
YU (1) YU198585A (nl)
ZA (1) ZA8648B (nl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588608A1 (fr) * 1985-10-10 1987-04-17 Gewerk Eisenhuette Westfalia Tete de coupe transversale d'une machine ponctuelle, avec equipement interne de pulverisation d'eau.
WO1995014846A1 (en) * 1993-11-20 1995-06-01 Hydra Tools International Plc Water supply system for a mining machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5507565A (en) * 1994-12-19 1996-04-16 Eimco Coal Machinery, Inc. Method and apparatus for suppressing dust and frictional ignition on a continuous mining machine
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242539B (de) * 1964-12-05 1967-06-22 Eickhoff Geb Vorrichtung zur Fluessigkeitszufuhr zu ueber den Umfang eines rotierenden Abbauwerkzeuges, insbesondere einer Schraemwalze, verteilten Spruehduesen
DE3122323A1 (de) * 1981-06-05 1982-12-23 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Steuerung des druckwassers innenbeduester schneidwalzen
EP0122252A2 (de) * 1983-04-11 1984-10-17 VOEST-ALPINE Aktiengesellschaft Verfahren zum Besprühen der Meissel und/oder der Ortsbrust mit Druckflüssigkeit sowie Vorrichtung zur Durchführung dieses Verfahrens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799615A (en) * 1972-06-29 1974-03-26 Atlas Copco Ab Tunneling machine having generator means for liquid jets carried on cutter heads
AT344645B (de) * 1976-05-25 1978-08-10 Voest Ag Schraemmaschine
GB1550492A (en) * 1976-11-16 1979-08-15 Coal Industry Patents Ltd Mineral mining machines
DE2819057A1 (de) * 1978-04-29 1979-11-08 Eickhoff Geb Schraemwalze mit einer belueftungs- und staubniederschlagsvorrichtung
AT359453B (de) * 1979-02-09 1980-11-10 Voest Alpine Ag Schraemkopf
DE3049146C2 (de) * 1980-12-24 1984-05-10 Friedrich Wilhelm 4230 Wesel Paurat Schrämwalze mit Sprühdüsen, welche in Bedüsungssektoren aufgeteilt ist

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242539B (de) * 1964-12-05 1967-06-22 Eickhoff Geb Vorrichtung zur Fluessigkeitszufuhr zu ueber den Umfang eines rotierenden Abbauwerkzeuges, insbesondere einer Schraemwalze, verteilten Spruehduesen
DE3122323A1 (de) * 1981-06-05 1982-12-23 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Steuerung des druckwassers innenbeduester schneidwalzen
EP0122252A2 (de) * 1983-04-11 1984-10-17 VOEST-ALPINE Aktiengesellschaft Verfahren zum Besprühen der Meissel und/oder der Ortsbrust mit Druckflüssigkeit sowie Vorrichtung zur Durchführung dieses Verfahrens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588608A1 (fr) * 1985-10-10 1987-04-17 Gewerk Eisenhuette Westfalia Tete de coupe transversale d'une machine ponctuelle, avec equipement interne de pulverisation d'eau.
WO1995014846A1 (en) * 1993-11-20 1995-06-01 Hydra Tools International Plc Water supply system for a mining machine
GB2297989A (en) * 1993-11-20 1996-08-21 Hydra Tools Int Plc Water supply system for a mining machine
GB2297989B (en) * 1993-11-20 1997-04-23 Hydra Tools Int Plc Water supply system for a mining machine
US5690392A (en) * 1993-11-20 1997-11-25 Hydra Tools International Plc Water supply system for a mining machine

Also Published As

Publication number Publication date
ZA8648B (en) 1986-08-27
IN163100B (nl) 1988-08-06
YU198585A (en) 1987-12-31
AU5170485A (en) 1986-07-24
HUT42580A (en) 1987-07-28
ES8702573A1 (es) 1987-01-01
AT381561B (de) 1986-11-10
US4696518A (en) 1987-09-29
MA20612A1 (fr) 1986-10-01
PL257562A1 (en) 1986-10-07
ES550773A0 (es) 1987-01-01
ATA13985A (de) 1986-03-15

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19870131

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Inventor name: MAIER, WILFRIED

Inventor name: ZITZ, ALFRED