EP2831375B1 - Rabot d'abattage - Google Patents

Rabot d'abattage Download PDF

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Publication number
EP2831375B1
EP2831375B1 EP13710305.7A EP13710305A EP2831375B1 EP 2831375 B1 EP2831375 B1 EP 2831375B1 EP 13710305 A EP13710305 A EP 13710305A EP 2831375 B1 EP2831375 B1 EP 2831375B1
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EP
European Patent Office
Prior art keywords
cutting bit
plow
mining
attachment member
ancillary
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.)
Active
Application number
EP13710305.7A
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German (de)
English (en)
Other versions
EP2831375A2 (fr
Inventor
Norbert Hesse
Gerhard Siepenkort
Adam Klabisch
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.)
Caterpillar Global Mining Europe GmbH
Original Assignee
Caterpillar Global Mining Europe GmbH
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.)
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Publication date
Application filed by Caterpillar Global Mining Europe GmbH filed Critical Caterpillar Global Mining Europe GmbH
Priority to PL13710305T priority Critical patent/PL2831375T3/pl
Publication of EP2831375A2 publication Critical patent/EP2831375A2/fr
Application granted granted Critical
Publication of EP2831375B1 publication Critical patent/EP2831375B1/fr
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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
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/34—Machine propelled along the working face by cable or chain
    • 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
    • E21C35/08—Guiding the machine

Definitions

  • the present disclosure relates to a mining plow, in particular a coal mining plow, having a plow base which is guidable on a reversible conveyor.
  • Coal mining plows with extraction cutting bits fastened to pivotable cutting bit carriers, which are connected in a direction-independent manner via a connecting rod or a catch that is connected to the plow chain for the mining plow are known, for example, from DE 201 18 259 U1 or DE 196 37 789 A1 .
  • the height of the mining plow can be adjusted to the actual desired working height, in which the height of the mining plow is increased using attachment members.
  • the height increase is achieved using an attachment member, which is supported via a supporting portal on the goaf side on a guide rail provided on the conveyor for this purpose, whereby even with mining plows having an especially high structure, and optionally provided with a plurality of set-on attachment members, a reliable stabilization of the plow can be achieved with effective removal of the forces on the plow guide.
  • a mining plow in particular a coal mining plow, may comprise a plow base constructed to be guided on a reversible conveyor and having a pivot pin on an inclined supporting surface for pivotably supporting a cutting bit carrier in each direction of plow travel, two cutting bit carriers pivotably supported on a respective pivot pin, including extraction cutting bits, and being pivotable in a travel-direction-dependent manner, a roof cutting bit carrier attached to the plow base in a height-adjustable manner, and including roof cutting bit columns.
  • the roof cutting bit carrier may be removably anchorable at different heights to an attachment surface formed between the inclined supporting surfaces.
  • the disclosed mining plow may further comprise an attachment member settable on the plow base and elongating the attachment surface for the roof cutting bit carrier to increase the working height of the mining plow.
  • the attachment member may include ancillary cutting bit columns provided with extraction cutting bits and attached to the attachment member. Each ancillary cutting bit column may be respectively positioned in its extraction position for a plow trip above a cutting bit carrier, and an intermediate member may be disposed between the attachment member and each ancillary cutting bit column.
  • the intermediate member may be foldable attached to the attachment member and may be folded away into an installation position, in which the corresponding cutting bit carrier may be removable while the attachment member and the intermediate part remain installed.
  • the present disclosure may be based in part on the realization that providing a mining plow having a plow base with the lowest possible design may offer a high variability for the mining of different seam thicknesses of the to-be-excavated mineral layer, in particular coal, may be easy to assemble and may have an improved mining behavior even in the face end region as well as the longwall tunnel itself when confined spaces are present due to the work situation or a narrow roadway.
  • the present disclosure may be further based in part on the realization that the extraction cutting bits of the disclosed mining plow may lie on the ancillary cutting bit column above or in extension of the line of the extraction cutting bits of the associated cutting bit carrier, such that by adding the ancillary cutting bit columns, which are disposed substantially farther forward in the direction of travel, may improve mining behavior, in particular in the face end region as well as in the longwall tunnel.
  • an upper bank or a concrete pack, with which a tunnel support structure may be optionally backfilled can be removed in the tunnel.
  • a mining plow according to the present disclosure is indicated overall with reference number 1 in Figs. 1 to 3 .
  • the mining plow 1 can be moved using a plow chain 2 (only shown in part) along plow guides (not shown) during underground mining operations.
  • the plow guides are part of a conveyor apparatus, which is laid along the mining face over lengths of generally 200 m to 400 m for extracting minerals such as, for instance, coal, and may be automatically advanced forwarding the direction of the mining face using suitable advancing devices as the mining progresses.
  • a guide shoe 5 and a guide recess 6 on the rear side of a base 4 of the mining plow 1 can be seen, with which the mining plow 1 is guided on guide bars, which are part of the plow guide.
  • the plow chain 2 is connected to a pull-sled serving as a catch, which is disposed in a recess on the underside of the plow base 4 and moves the mining plow 1 in the pulling direction of the plow chain 2 along the plow guide, as is known from the prior art.
  • the mining plow 1 is provided with a cutting bit carrier 7 for both plow travel directions, which are indicated with F and F', respectively, in Fig. 1 .
  • the cutting bit carrier 7 is pivotably supported on the plow base 4 about a pivot pin 8 that is visible in Figs. 2 and 3 , and rests with its weight on an oblique supporting surface 9 of the plow base 4.
  • both cutting bit carriers 7 are provided with a row of extraction cutting bits 11 disposed one above another.
  • the extraction cutting bits 11 extend over the entire height of the plow base 4 and over the height of the material to be mined by the mining plow 1 with the cutting bit carrier 7, which means the material that lies forward of the mining plow 1 in the direction of travel F or F'.
  • the mining plow 1 is further provided in a conventional manner with a roof cutting bit carrier 12 having two roof cutting bit columns 13 equipped with extraction cutting bits 14.
  • the roof cutting bit carrier 12 is fastened to the plow base 4 in a height-adjustable manner, and can be displaced along groove guides 15 in the height direction which means vertically, in order to be anchored at different height positions.
  • the mining plow 1 is further provided in a known manner with an attachment member 20, with which the height, and thus the extraction height, of the mining plow 1 can be increased.
  • An ancillary cutting bit column 21, which is equipped with additional extraction cutting bits 22, is disposed on the attachment member 20 for each direction of travel, in order to additionally excavate minerals or rock on the coal mining face along the height of the attachment member 20.
  • Groove guides 26 are disposed in the center of the attachment member 20 on its front surface.
  • the groove guides 26 extend the groove guides 15 on the plow base 4, in order to be able to move the roof cutting bit carrier 12 upwards in such a manner that material can be excavated in the roof area by the roof cutting bit carrier 12 also when the attachment member 20 is attached.
  • Both the roof cutting bit columns 13 and the ancillary cutting bit columns 21 are pivotable, so that only the roof cutting bit column 13 and ancillary cutting bit column 21 disposed forward in the travel direction F or F' perform extraction work.
  • both ancillary cutting bit columns 21 are positioned on the mining plow 1 in such a way that the extraction cutting bits 22 of the ancillary cutting bit columns 21 are located above the respective cutting bit carriers 7 and in an arc-like extension of the extraction cutting bits 11.
  • a correspondingly far-forwardmost positioning of the ancillary cutting bit column 21 in the direction of travel is achieved in the mining plow 1 by arranging an intermediate part 30 between the attachment member 20 and each ancillary cutting bit column 21.
  • the left-side intermediate part 30 has been folded away into an installation position, whereas the right-side intermediate part 30 is shown in the extraction position (or operational position) for the right-side ancillary cutting bit column 21.
  • the installation position neither the intermediate part 30 nor an optional ancillary cutting bit column 21 fastened to the intermediate part 30 is disposed over the underlying cutting bit carrier 7 in such a way that accessibility of the pivot pin 8 would be hindered and/or the cutting bit carrier 7 could not be removed and lifted off of the pivot pin 8.
  • the cutting bit holder 7 in order to uninstall (remove) the cutting bit holder 7, it is sufficient in the present mining plow 1 to release a lock holding the respective intermediate part 30, and fold it back into the installation position as shown at the left of Fig. 2 .
  • the associated ancillary cutting bit column 21 may be removed before the intermediate part 30 is folded back.
  • the attachment member 20, which is usually very heavy, can remain on the plow base 4 during installation/removal of the cutting bit carrier 7.
  • the underside of the attachment 20 may be attached to the plow base 4.
  • the latch pins 23 sit in corresponding latch recesses (not shown) on the plow base 4, and thus fix the attachment member 20 to the plow base 4 in an interference-fit manner and parallel to the direction of travel.
  • wedge-jaws 24 are provided and can be moved relative to each other using turnbuckles 25 (see Fig. 6 ) in such a way that the jaws of the wedge-jaws 24 extend beyond the attachment member 20 and grasp the plow base 4, thereby clamping the attachment member 20 onto the plow base 4.
  • the wedge-jaws 24 are disposed on either side of the groove guides 26, which are removably anchored to the attachment member 20, for example, screw-fastened in this embodiment.
  • a fork receptacle 29 is disposed on each end of the attachment member 20 and is open towards the front side.
  • Spaced-apart bolt receptacles 27 define a gap for receiving a bolt eye 31 of the intermediate part 30.
  • the bolt receptacles 27 and the bolt eye 31 are connected using a pivot bolt 45.
  • the pivot axis of the pivot bolt 45 extends parallel to the groove guides 26 and connects the bolt receptacles 27 and the bolt eye 31, and thus the intermediate part 30 and the attachment member 20, to one another.
  • the bolt receptacles 27 and the bolt eye 31 are designed to be suitably strong, so that the entire weight of the intermediate part 30 and the connected additional column 21 can be retained in a pivotable manner.
  • the intermediate part 30 has a middle part 32 that is integrally connected with the bolt eye 31.
  • a strong pressure plate 33 is formed on the rear side of the middle part 32, as can be seen on the left side in Fig. 7 .
  • a beveled rear end face 34 abuts in an form-fit manner on an abutment surface 28 of the attachment member 20.
  • the abutment surface 28 also extends obliquely to the direction of travel, in order to direct all of the forces arising on the ancillary cutting bit columns 21 during the extraction movement to the attachment member 20 via the pressure plate 33.
  • the middle part 32 is further provided with pin receptacles 35 opposite the bolt eye 31.
  • a supporting body 41 of the ancillary cutting bit column 21 is insertable into the pin receptacles 35, preferably only in a certain relative position between the ancillary cutting bit column 21 and the intermediate part 30.
  • the supporting body 41 of the ancillary cutting bit column 21 can or must then be pivoted into a position, relative to the intermediate part 30, in which the supporting body 41 of the ancillary support column 21 is fixedly held between an arm pair 36 on the intermediate part 30.
  • the arm pair 36 lies opposite the pin receptacles 35 at a short distance.
  • the ancillary support column 21 is consequently supported in the extraction (mining or operational) position on the intermediate part 30 on the one hand via the pin receptacles 35 and on the other hand between the arm pair 36.
  • the ancillary cutting bit column 21 can be installed or uninstalled only in a certain pivot position, however not in the extraction (mining or operational) position, which is shown on the right side of Fig. 7 .
  • the pivot pin connection between the ancillary cutting bit column 21 and the intermediate part 30 can be effected using pin stumps which are integrally formed on the supporting body 41 of the ancillary cutting bit column 21.
  • the intermediate part 30 is further provided with a supporting projection 37 directly adjacent to the bolt eye 31.
  • the supporting projection 37 is cantilevered laterally beyond the bolt eye 31.
  • the supporting projection 37 In the extraction (mining or operation) position the supporting projection 37 abuts on an abutment surface located in a step-shaped recess 42 defined on the rear side of the attachment member 20.
  • Receiving bores 38 and 43 are respectively formed in the supporting projection 37 and on the bottom of the step-shaped recess 42.
  • Locking screws 44 can be screwed into the bores 38,43 in order to secure the intermediate part 30 and prevent unintentional pivoting-back in the extraction position. Because the forces arising in mining operation press the end face 34 of pressure plate 33 against the abutment surface 28, the locking screws 44 need not receive any transverse forces.
  • the pressure plate 33 is provided with a recess 39.
  • the pivot axis formed by the pin projections and pin receptacles 35 and the pivot axis formed by the pivot bolts 45 lie parallel to one another and parallel to the groove guides 26.
  • the front side of the supporting body 41 of the ancillary cutting bit columns 21 and the intermediate part 30 are each provided with hook projections 48, 49, which lie opposite one another in the mining position and are surrounded by a chain link, which permits a limited pivoting of the supporting body 41 of the ancillary cutting bit columns 21 relative to the intermediate part 30, which is fastened on the attachment member 20 so as to prevent movement, and is secured against falling out using a cotter pin or the like.
  • the roof cutting bit carrier may be fastened to the base in different ways. Under certain circumstances, the roof cutting bit carrier may also allow itself to be moved into a position in which the ancillary cutting bit columns may remain on the intermediate parts, if these are pivoted out for an installation/removal of the cutting bit carrier. The same could also be achieved through a different design of the supporting body for the ancillary cutting bit columns.
  • pivot bolts may also be used, which could be secured in various ways. Different mining lines between the extraction cutting bits on the cutting bit carriers and the extraction cutting bits on the ancillary cutting bit carriers could be achieved through the choice of different intermediate parts.
  • the attachment member can remain on the base body, despite the ancillary cutting bit column still being positioned in a cantilevered forward manner, and it is only required to fold or pivot the intermediate part back into an installation position, optionally after removing the ancillary cutting bit column and releasing the associated locking means. In the installation position it may be possible to lift off the cutting bit carrier from the base body without the intermediate part disturbing the installation or removal of the cutting bit carrier.
  • the ancillary cutting bit columns may be fastened to the intermediate part so as to be partially-pivotable about an axis, so that when the plow may travel in the reverse direction they may swing into a position in which they may have no contact with the face.
  • the ancillary cutting bit columns may be pivotably fastened to the intermediate part about pin stubs, which may be integrally formed on the ancillary cutting bit column and which may be only insertable into edge-open pin receptacles when the ancillary cutting bit column is located at a defined pivot position relative to the intermediate part.
  • the ancillary cutting bit column and the intermediate part may be provided with hook projections, which may lie opposite one another in the extraction position.
  • the ancillary cutting bit columns may in each case be locked against pivoting back into the pivot position for uninstalling using a chain-link-like securing element on the associated intermediate part, wherein the eyelet length of the chain link may determine the degree of freedom of pivoting.
  • the attachment member may be provided with latch pins on its underside, which in the installation state may sit in latch recesses on the plow base, and/or the attachment member may be clampable or clamped onto the plow base using wedge-jaws that may be movable using turnbuckles.
  • the intermediate part and the ancillary cutting bit column may be movable about mutually parallel axes.
  • the fastening surface on the plow base may be laterally bounded by groove guides, and the attachment member may be provided with groove guides on its front surface, wherein the ancillary cutting bit columns may be disposed on both sides of the groove guides.
  • the axes may then preferably extend parallel to the grooves on the fastening surface for the roof cutting bit carrier.
  • the rear side of the intermediate part may be provided with a pressure plate, which may abut on the attachment member when the ancillary cutting bit column may be in the extraction position.
  • a pressure plate in view of force dissipation, it may be preferable that an end face of the pressure plate may abut on an abutment surface on the attachment member in the extraction position in the direction of travel.
  • the end face and the abutment surface may extend obliquely to the direction of travel, in order to achieve as large as possible a contact surface between the parts with a small width of the pressure plate.
  • the pressure plate in order to be able to install locking means even when subjected to confined space conditions, may be provided with an opening.
  • Receiving bores for locking screws may be respectively provided in the attachment member and in the intermediate part, with which the attachment member may be fixable to prevent folding back when disposed in the extraction position.
  • the receiving bores may be formed in the intermediate part in the region of the opening.
  • the height adjustment and support of the roof cutting bit carrier could also be effected in a way other than via groove guides.

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  • 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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Details Of Cutting Devices (AREA)
  • Knives (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Soil Working Implements (AREA)

Claims (14)

  1. Rabot d'abattage (1), en particulier rabot d'abattage de charbon, comprenant :
    une base de rabot (4) conçue pour être guidée sur un transporteur réversible, la base de rabot (4) ayant une broche pivot (8) sur une surface de support inclinée (9) pour supporter à pivotement un support de mèche coupante (7) dans chaque direction de déplacement du rabot ;
    deux supports de mèches coupantes (7) supportées à pivotement sur une broche pivot respective (8), comprenant des mèches coupantes d'extraction (11) et pouvant pivoter de manière dépendant de la direction de déplacement ;
    un support de mèches coupantes de toit (12) fixé à la base de rabot (4) de manière ajustable en hauteur et comprenant des colonnes de mèches coupantes de toit (13), le support de mèches coupantes de toit (12) pouvant être ancré de manière amovible à différentes hauteurs à une surface de fixation formée entre les surfaces de support inclinées (9) ; et
    un élément de fixation (20) montable sur la base de rabot (4) et allongeant la surface de fixation pour le support de mèches coupantes de toit (12) afin d'augmenter la hauteur de travail du rabot d'abattage (1), l'élément de fixation (20) comprenant des colonnes de mèches coupantes auxiliaires (21) pourvues de mèches coupantes d'extraction (22) et fixées à l'élément de fixation (20), dans lequel :
    chaque colonne de mèches coupantes auxiliaires (22) est respectivement positionnée dans la position d'extraction pour un déplacement du rabot au-dessus d'un support de mèche de coupe (7) et
    un élément intermédiaire (30) est disposé entre l'élément de fixation (20) et chaque colonne de mèches de coupe auxiliaires (21), caractérisé en ce que l'élément intermédiaire (30) est fixé de manière repliable à l'élément de fixation (20) et peut être déplié dans une position d'installation, dans laquelle le support de mèche coupante correspondant (7) peut être retiré tandis que l'élément de fixation (20) et la partie intermédiaire (30) restent installés.
  2. Rabat d'abattage (1) selon la revendication 1, dans lequel les colonnes de mèches coupantes auxiliaires (21) sont fixées aux parties intermédiaires (30) de manière à pouvoir pivoter partiellement autour d'un axe.
  3. Rabat d'abattage (1) selon la revendication 2, dans lequel les colonnes de mèches coupantes auxiliaires (21) sont fixées aux parties intermédiaires (30) de manière à pivoter autour de bouts de broche qui sont formés d'un seul tenant sur un corps de support (41) de la colonne de mèches coupantes auxiliaires (21) et peuvent être inséré dans des réceptacles de broche à bord ouvert sur la partie intermédiaire (30) dans une position de pivotement définie entre les parties intermédiaires (30) et la colonne de mèches coupantes auxiliaires (21).
  4. Rabat d'abattage (1) selon la revendication 3, dans lequel les colonnes de mèches coupantes auxiliaires (21) et les parties intermédiaires (30) sont pourvues de saillies à crochet (48, 49) qui sont situées en regard l'une de l'autre dans la position d'extraction.
  5. Rabat d'abattage (1) selon l'une quelconque des revendications 3 ou 4, dans lequel chaque colonne de mèches coupantes auxiliaires (21) peut être verrouillée pour empêcher le re-pivotement dans une position pivot de retrait par un élément de fixation (47) du type à maillons de chaîne disposé sur la partie intermédiaire associée (30).
  6. Rabat d'abattage (1) selon l'une quelconque des revendications 1 ou 5, dans lequel :
    des broches de verrouillage (23) sont prévues sur la partie inférieure de l'élément de fixation (20) et, à l'état installé, les broches de verrouillage (23) sont disposées dans des cavités de verrouillage sur la base de rabot (4) et/ou
    l'élément de fixation (20) peut être bloqué sur la base de rabot (4) en utilisant des mors de calage (24) qui sont mobiles en utilisant des manchons de serrage.
  7. Rabat d'abattage (1) selon l'une quelconque des revendications 1 à 6, dans lequel la partie intermédiaire (30) et la colonne de mèches coupantes auxiliaires (21) sont mobiles autour d'axes mutuellement parallèles.
  8. Rabat d'abattage (1) selon l'une quelconque des revendications 1 à 7, dans lequel :
    la surface de fixation sur la base de rabot (4) est délimitée latéralement par des guides-rainures,
    une surface avant de l'élément de fixation (20) est pourvue de guides-rainures (26) et
    les colonnes de mèches coupantes auxiliaires (21) sont respectivement disposées des deux côtés des guides-rainures (26).
  9. Rabat d'abattage (1) selon l'une quelconque des revendications 7 ou 8, dans lequel les axes s'étendent parallèlement aux rainures sur la surface de fixation pour le support de mèches coupantes de toit (12).
  10. Rabat d'abattage (1) selon l'une quelconque des revendications 1 à 9, dans lequel un côté arrière de la partie intermédiaire (30) est pourvue d'une plaque de pression (33) qui s'appuie sur l'élément de fixation (20) lorsque la colonne de mèches coupantes auxiliaires (21) est disposée dans la position d'extraction.
  11. Rabot d'abattage (1) selon la revendication 10, dans lequel :
    une face d'extrémité (34) de la plaque de pression (33) s'appuie sur une surface de butée (28) sur l'élément de fixation (20) dans la direction de déplacement et
    la face d'extrémité (34) et la surface de butée (28) s'étendent de préférence en oblique par apport à la direction de déplacement.
  12. Rabat d'abattage (1) selon l'une quelconque des revendications 10 ou 11, dans lequel la plaque de pression (33) est pourvue d'une ouverture (39).
  13. Rabat d'abattage (1) selon l'une quelconque des revendications 1 à 12, dans lequel :
    des alésages de réception sont respectivement définis dans l'élément de fixation (20) et la partie intermédiaire (30) et
    des vis de blocage s'étendent à travers les alésages de réception pour fixer la partie intermédiaire (30) en position d'extraction et empêcher un repli en arrière.
  14. Rabat d'abattage (1) selon l'une quelconque des revendications 12 ou 13, dans lequel les alésages de réception sont formés dans la partie intermédiaire (30) de la région de l'ouverture (39) .
EP13710305.7A 2012-03-30 2013-03-15 Rabot d'abattage Active EP2831375B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13710305T PL2831375T3 (pl) 2012-03-30 2013-03-15 Strug górniczy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201220101169 DE202012101169U1 (de) 2012-03-30 2012-03-30 Gewinnungshobel
PCT/EP2013/000804 WO2013143658A2 (fr) 2012-03-30 2013-03-15 Rabot d'abattage

Publications (2)

Publication Number Publication Date
EP2831375A2 EP2831375A2 (fr) 2015-02-04
EP2831375B1 true EP2831375B1 (fr) 2016-09-28

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EP13710305.7A Active EP2831375B1 (fr) 2012-03-30 2013-03-15 Rabot d'abattage

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US (1) US20150084396A1 (fr)
EP (1) EP2831375B1 (fr)
CN (1) CN104254668B (fr)
DE (1) DE202012101169U1 (fr)
PL (1) PL2831375T3 (fr)
RU (1) RU2014143835A (fr)
WO (1) WO2013143658A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3106607A1 (fr) * 2015-06-19 2016-12-21 Caterpillar Global Mining Europe GmbH Charrue de compensation par longue taille

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DE2709392C2 (de) * 1977-03-04 1985-09-12 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Kohlenhobel
DE2836133A1 (de) * 1978-08-18 1980-02-28 Gewerk Eisenhuette Westfalia Hobel mit hoehenverstellbarem firstmeisseltraeger
DE3041485A1 (de) * 1980-11-04 1982-06-16 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hobel fuer die untertaegige gewinnung von kohle u. dgl.
DE3106565A1 (de) * 1981-02-21 1982-09-16 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Schwerthobel
DE3447190C2 (de) * 1984-12-22 1995-06-08 Westfalia Becorit Ind Tech Vorrichtung zum Befestigen eines Hobeloberteils an einem Hobelunterteil
DE19537386A1 (de) * 1995-10-07 1997-04-10 Bochumer Eisen Heintzmann Kontinuierlich arbeitendes Gewinnungsgerät für flözartig anstehende mineralische Rohstoffe, insbesondere für Kohle
DE19637789B4 (de) 1996-09-17 2004-03-04 Dbt Gmbh Hobel für die untertägige Gewinnung von Kohle u. dgl.
DE20118259U1 (de) 2001-11-09 2002-01-31 Dbt Bergbau Service Gmbh Hobel
DE202004001301U1 (de) * 2004-01-28 2004-04-01 Dbt Gmbh Bergbaumaschine mit lösbarem Führungsstück und Führungsstück hierfür
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Publication number Publication date
RU2014143835A (ru) 2016-05-27
WO2013143658A3 (fr) 2013-12-05
CN104254668B (zh) 2017-02-22
US20150084396A1 (en) 2015-03-26
CN104254668A (zh) 2014-12-31
EP2831375A2 (fr) 2015-02-04
DE202012101169U1 (de) 2013-07-01
WO2013143658A2 (fr) 2013-10-03
PL2831375T3 (pl) 2017-06-30

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