EP0429051B1 - Walzenschrämmaschine - Google Patents

Walzenschrämmaschine Download PDF

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Publication number
EP0429051B1
EP0429051B1 EP19900122134 EP90122134A EP0429051B1 EP 0429051 B1 EP0429051 B1 EP 0429051B1 EP 19900122134 EP19900122134 EP 19900122134 EP 90122134 A EP90122134 A EP 90122134A EP 0429051 B1 EP0429051 B1 EP 0429051B1
Authority
EP
European Patent Office
Prior art keywords
electric motor
drive
disc
machine
cutting
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 - Lifetime
Application number
EP19900122134
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0429051A1 (de
Inventor
Rolf Gnauert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0429051A1 publication Critical patent/EP0429051A1/de
Application granted granted Critical
Publication of EP0429051B1 publication Critical patent/EP0429051B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/02—Machines which completely free the mineral from the seam solely by slitting

Definitions

  • the invention relates to a roller cutting machine according to the features in the preamble of claim 1.
  • Such a roller cutting machine is part of the prior art through the German laid-open specification 27 41 660. If, according to an embodiment of this known type, hydraulic drive units consisting of each pump and motor are used for the longitudinal feed, the pumps of these drive units are driven by spur gear drives from the drive shafts extending in a straight line between the central electric motor and the roller head drives.
  • the invention is based on the drum cutting machine described in the preamble of claim 1, the problem of building this short with purely electric drive and to keep the straight drive shafts between the central electric motor and the roller head gears.
  • the arrangement of hollow shafts that can be driven with electrical energy on the circumference of the rectilinear drive shafts creates the conditions for maintaining the comparatively simple bearings for the drive shafts can be and with little space required, the necessary force can be applied to the drive shafts via the hollow shafts in order to ensure the longitudinal feed of the roller cutting machine in one or the other direction of movement.
  • An advantageous embodiment of the basic idea according to the invention consists in the features of claim 2.
  • the energy for generating the longitudinal feed of the roller cutting machine is derived exclusively from the central electric motor.
  • no further drive unit is therefore provided in the machine housing.
  • the couplings in particular eddy current couplings, can be accommodated in the machine housing on the circumference of the drive shafts with a comparatively small space requirement. Consequently, the incorporation of such clutches, preferably eddy current clutches, leads to a short overall length of the machine housing.
  • Figures 1 and 2 each show a schematic plan view of the drive elements for the rotation of the cutting rollers and for the longitudinal feed of a double-roller cutting machine.
  • the machine housing of the double-roll cutting machine 2 (hereinafter called the cutting machine for short) is shown in dash-dotted lines.
  • the machine housing 1 is subdivided into a number of structural units 3, 4, 5, which both facilitates the transport of a cutting machine 2 to the underground site as well as maintenance and repair.
  • the machine housing 1 is subdivided, for example, into three structural units 3, 4, 5.
  • the cutting machine 2 has at both ends not shown cutting rollers as end components of pivoting arms 7 pivotable about horizontal axes 7.
  • the cutting arms 7 can, for. B. can be pivoted vertically by also not shown in Figures 1 and 2 cylinders.
  • the rotary movement of the cutting rollers is generated by an electric motor 8, which is housed in the central unit 4.
  • the electric motor 8 has two outlets 9 pointing in the longitudinal direction of the machine housing 1, to which rectilinear drive shafts 10 are connected.
  • the other ends of the drive shafts 10 are connected to roller head gears 11, which are coupled in terms of drive technology to the cutting rollers via gear trains (not shown in detail) in the cutting arms 7.
  • gear wheels 13 are mounted in the end units 3, 5 about horizontal axes 12, which cooperate with a rack 14 which is arranged along the positive guidance for the cutting machine 2, which consists, for example, of a face conveyor, not shown in detail.
  • the gear wheels 13 are connected via gear trains 15 to the secondary wheels 16 of eddy current clutches 17, which form components of hollow shafts 18 which surround the drive shafts 10 in a relatively rotatable manner.
  • the primary wheels 19 of the eddy current clutches 17 are fastened on the drive shafts 10. If an electric field is built up between a primary wheel 19 and a secondary wheel 16, the energy emitted by the central electric motor 8 can be brought to the respective gear 13 via the corresponding eddy current clutch 17 and the downstream gear train 15 and in this way the cutting machine 2 along the rack 14 be shifted in the desired direction.
  • the gearwheels 13 are connected via gear trains 20 to hollow shafts 21, which relatively rotatably enclose the drive shafts 10, as components of further electric motors 22.
  • the energy of the central electric motor 8 is not used for the longitudinal feed of the cutting machine 2, but rather the energy of the additional electric motors 22 which surround the drive shafts 10 concentrically and are arranged coaxially to the central electric motor 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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Sawing (AREA)
EP19900122134 1989-11-21 1990-11-20 Walzenschrämmaschine Expired - Lifetime EP0429051B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893938572 DE3938572A1 (de) 1989-11-21 1989-11-21 Walzenschraemmaschine
DE3938572 1989-11-21

Publications (2)

Publication Number Publication Date
EP0429051A1 EP0429051A1 (de) 1991-05-29
EP0429051B1 true EP0429051B1 (de) 1993-04-21

Family

ID=6393906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900122134 Expired - Lifetime EP0429051B1 (de) 1989-11-21 1990-11-20 Walzenschrämmaschine

Country Status (2)

Country Link
EP (1) EP0429051B1 (enrdf_load_stackoverflow)
DE (1) DE3938572A1 (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741660C2 (de) * 1977-09-16 1981-11-26 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Walzenschrämmaschine
DE3329702A1 (de) * 1983-08-17 1985-03-07 Gebr. Eickhoff Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Walzenschraemmaschine, die mit einem schraemwalzenmotor und einem windenmotor ausgestattet ist
DE3810374C1 (en) * 1988-03-26 1989-11-16 Bergwerksverband Gmbh, 4300 Essen, De Double-drum shearer

Also Published As

Publication number Publication date
DE3938572C2 (enrdf_load_stackoverflow) 1991-11-28
EP0429051A1 (de) 1991-05-29
DE3938572A1 (de) 1991-05-23

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