EP0112408B1 - Bouclier-enveloppe pour tambour de lavage - Google Patents

Bouclier-enveloppe pour tambour de lavage Download PDF

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Publication number
EP0112408B1
EP0112408B1 EP19820112055 EP82112055A EP0112408B1 EP 0112408 B1 EP0112408 B1 EP 0112408B1 EP 19820112055 EP19820112055 EP 19820112055 EP 82112055 A EP82112055 A EP 82112055A EP 0112408 B1 EP0112408 B1 EP 0112408B1
Authority
EP
European Patent Office
Prior art keywords
clearing plate
cutting
clearing
blade
proximity switch
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
EP19820112055
Other languages
German (de)
English (en)
Other versions
EP0112408A1 (fr
Inventor
Bernhard Schneider
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
Priority to DE8282112055T priority Critical patent/DE3271481D1/de
Priority to EP19820112055 priority patent/EP0112408B1/fr
Publication of EP0112408A1 publication Critical patent/EP0112408A1/fr
Application granted granted Critical
Publication of EP0112408B1 publication Critical patent/EP0112408B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • E21C35/04—Safety devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F9/00—Devices preventing sparking of machines or apparatus

Definitions

  • the invention relates to a scraper roller clearing blade according to the preamble of claim 1 as z. B. is known from DE-A-26 52 614.
  • the hard coal to be extracted in underground mining is currently mainly mined using cutting machines.
  • the cutting machines used for this purpose which are equipped with one or two cutting rollers, are moved over or on the butt side - in addition to the face conveyor on the butt and old-sided conveyor attachments, in a sliding or rolling manner.
  • the core cutter bodies are provided with three to six, thread-like gears, depending on the cutter roller 0, the surfaces of which are equipped with cutter chisels.
  • the coal is broken loose by this cutting chisel and discharged towards the face conveyor by the previously described design of the cutting roller.
  • the circular-shaped dozer blade is screwed to a dozer blade holder at a certain distance from the chisel tips of the cutting rollers.
  • This dozer blade holder is divided and surrounds the planet carrier housing in a ring so that it can be pivoted together with the dozer blade around the cutting roller.
  • the dozer blade When cutting, the dozer blade must always be behind the cutting roller in the cutting direction. If the cutting direction is changed, the dozer blade must be pivoted into the correct position with the dozer blade holder around the cutting roller. Due to the arrangement of the dozer blade, firstly the transport effect of the cutting roller is increased, secondly, through the dozer blade, the scraped material loosened by the cutting roller is prevented from accumulating dust in the work area, and thirdly, the clearing blade scraping over the sole due to its own weight cleans this in such a way that the return process of the face conveyor with the face building units to be tightened is made considerably easier.
  • the dozer blade holder Due to the angular arrangement of the dozer blade and dozer blade holder, which can form a large lever arm with the appropriate cutting roller diameter, the dozer blade holder is subjected to very high bending forces. This is particularly the case when the pivoting process described under 2. is carried out. It can also happen that the clearing blade located under the cutting roller only sits on a mountain boulder or fallen cutting material in the deepest part of the cutting. It has an even more unfavorable effect if, without swiveling the dozer blade, the cutting direction is changed at short notice, e.g. B. allegedly coping with an aftermath better. In the aforementioned cases, there are so high bending forces in the snow blade holder that it is deformed.
  • the invention is based on the object of all damage which may occur as a result of an unintentional contact of the clearing blade with the cutting roller or its cutting bit and even to prevent these contacts themselves and to remove damage to the clearing blade once quickly and inexpensively.
  • the cutting machine 1 shown schematically in the drawing can be moved on the butt-side 2 and offset-side 3 attachments of the face conveyor 4.
  • the cutting roller 5, also shown here schematically, without a cutting chisel, is attached to the non-visible roller connection flange via the planet carrier housing 6 of the roller support arm 7.
  • the circular blade-shaped or similarly designed clearing blade 8, which must always be in the cutting direction behind the cutting roller 5 in the working position, is detachably attached to the clearing blade holder 9.
  • the clearing blade 8 was divided according to the invention approximately two-thirds of its depth by a quick-release connection. As a result, only the outer part of the dozer blade 8 and the bent part of the dozer blade holder 9, which is also split, need be replaced in the future.
  • a proximity switch 12 which triggers an optical or acoustic signal 11 in the event of a collision and / or switches off the drive of the cutting roller 5.
  • This proximity switch 12 is arranged in a corresponding recess in the clearing blade and is concealed on the side facing the cutting roller 5 by a radiation-permeable cap or the like.
  • the inside of the clearing blade is completely or partially covered with a non-sparking material, such as non-ferrous metal, plastic or the like, or made entirely from this material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Claims (4)

1. Bouclier de dégagement pour rouleau de havage, conçu principalement en forme d'arc de cercle et retenu de façon détachable sur une monture de bouclier (9) pouvant pivoter autour de l'axe du rouleau de havage (5), caractérisé en ce qu'il est formé totalement ou partiellement d'un matériau n'engendrant pas d'étincelles, tel qu'un métal non ferreux, une matière synthétique ou un matériau similaire ou qu'il en est recouvert intérieurement, en ce qu'une partie opposée à la. haveuse (1) est fixée de façon interchangeable à la partie restante, et en ce qu'il est équipé d'un interrupteur d'approche (12) déclenchant un signal et/ou mettant hors d'action l'entraînement du rouleau de havage (5).
2. Bouclier de dégagement pour rouleau de havage selon la revendication 1, caractérisé en ce que le ou les interrupteurs d'approche (12) sont installés, de façon protégée contre les dommages, dans des évidements du bouclier de dégagement (8), et en direction du rouleau de havage (5), ils sont doublés par des coffres de matière transparente aux rayons.
3. Bouclier de dégagement pour rouleau de havage selon l'une des revendications 1 ou 2. caractérisé en ce que l'actionnement de l'interrupteur d'approche s'effectue inductivement ou capacitivement.
4. Bouclier de dégagement pour rouleau de havage selon l'une des revendications 1 à 3, caractérisé en ce que l'alimentation en courant de l'interrupteur d'approche (12) et/ou l'acheminement du courant de signal s'effectue sans fil.
EP19820112055 1982-12-28 1982-12-28 Bouclier-enveloppe pour tambour de lavage Expired EP0112408B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8282112055T DE3271481D1 (en) 1982-12-28 1982-12-28 Clearing plate for a shearer drum
EP19820112055 EP0112408B1 (fr) 1982-12-28 1982-12-28 Bouclier-enveloppe pour tambour de lavage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19820112055 EP0112408B1 (fr) 1982-12-28 1982-12-28 Bouclier-enveloppe pour tambour de lavage

Publications (2)

Publication Number Publication Date
EP0112408A1 EP0112408A1 (fr) 1984-07-04
EP0112408B1 true EP0112408B1 (fr) 1986-05-28

Family

ID=8189435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820112055 Expired EP0112408B1 (fr) 1982-12-28 1982-12-28 Bouclier-enveloppe pour tambour de lavage

Country Status (2)

Country Link
EP (1) EP0112408B1 (fr)
DE (1) DE3271481D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104405387B (zh) * 2014-12-04 2017-01-25 天地上海采掘装备科技有限公司 带自锁装置的销齿传动弧形挡煤板机构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1506974A (en) * 1976-03-26 1978-04-12 Dale Ltd John Mining machinery
DE2652614C3 (de) * 1976-11-19 1981-06-19 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Schwenkeinrichtung für das um die Schrämwalzenachse schwenkbar gelagerte Räumblech einer Walzenschrämmaschine
GB1604410A (en) * 1977-12-14 1981-12-09 Pyroban Ltd Flameproofing and inerting systems
DE2822583A1 (de) * 1978-05-24 1979-11-29 Eickhoff Geb Schwenkeinrichtung fuer einen um die rotationsachse einer schraemwalze schwenkbar angeordneten raeumschild einer walzenschraemmaschine
DE2935401B1 (de) * 1979-09-01 1980-06-12 Vaw Ver Aluminium Werke Ag Verwendung eines Aluminium-Verbundwerkstoffs
GB2066873A (en) * 1979-12-21 1981-07-15 Green & Bingham Ltd Cowl drive

Also Published As

Publication number Publication date
DE3271481D1 (en) 1986-07-03
EP0112408A1 (fr) 1984-07-04

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