Bit arrangement for a mining plough, and mining plough for...

E - Fixed Constructions – 21 – C

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Details

E21C 27/34 (2006.01) E21C 27/44 (2006.01) E21C 35/12 (2006.01)

Patent

CA 2758021

The invention relates to a bit arrangement for fastening to a plough -body element (55) of a mining plough (50) for underground mining, particularly of a coal plough for the excavation of steeply disposed coal seams, having a plurality of bit pockets (130) for accommodating, preferably demountably, respectively one bit (131) per bit pocket. In order thereby to create a bit arrangement and a mining plough that can be used advantageously for the excavation of steeply disposed mineral deposits and that render possible economic excavation of such mineral deposits, at least two bit pockets (130) are locked in recesses (160) on a front side of a bit strip (111), which is provided, on a back side, with at least one groove indentation (114) for the positive engagement of a locking projection on the plough -body element and is detachably fastenable to the plough -body element by means of detachable fastening means (70).

La présente invention concerne un ensemble à tranchants destiné à être fixé sur un élément formant un corps de rabot de mine pour l'exploitation souterraine, notamment d'un rabot de mine pour l'exploitation de veines de charbon inclinées, comprenant une pluralité de supports (130) de tranchant prévus pour recevoir, de préférence de manière démontable, un tranchant respectif (131) par support. Afin de créer un ensemble à tranchants et un rabot de mine pouvant être utilisés avantageusement pour l'extraction économique de gisements minéraux inclinés et pour rendre possible l'extraction de tels gisements minéraux, au moins deux supports (130) de tranchant sont verrouillés dans des évidements (160) sur un côté avant d'une série (111) de tranchants qui est prévue, sur un côté arrière, avec au moins un renfoncement (114) de rainure afin d'assurer l'introduction positive d'une partie de verrouillage située sur l'élément formant le corps du rabot et qui peut être fixée de manière détachable à l'élément formant le corps du rabot au moyen d'un moyen de fixation détachable (70).

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