An arrangement in a feed beam of a rock drill

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 19/08 (2006.01) E21B 7/00 (2006.01) E21B 15/00 (2006.01) E21B 15/04 (2006.01)

Patent

CA 2215505

In the arrangement, a feed beam (1) made of an aluminium profile comprises a slide guide frame (1a), whereby the outer surface of the slide guide frame (1a, 1b) and respectively, the inner surface of the slide guide (6a, 6b) are shaped and dimensioned in such a manner that when the slide guide (6a, 6b) is on the slide guide frame (1a, 1b), they are tight against one another. The other edge of the slide guide frame (1a, 1b) and respectively, the corresponding edge of the slide guide (6a, 6b) are shaped in such a manner that when the slide guide (6a, 6b) is mounted in place, its said edge is shape-locked relative to the slide guide frame (1a, 1b). The slide guide (6a, 6b) is also secured by separate securing means to the feed beam (1) in such a manner that it cannot move either in the cross or longitudinal direction relative to the feed beam (1).

L'invention concerne un agencement de traverse d'avance pour perforatrice de roches. Dans ledit agencement, la traverse (1) à profil d'aluminium comporte un cadre de guide à glissière (1a). La surface extérieure du cadre de guide à glissière (1a, 1b) et, respectivement, la surface intérieure du guide à glissière (6a, 6b) ont une forme et des dimensions telles que, lorsque le guide à glissière (6a, 6b) est sur le cadre de guide à glissière (1a, 1b), les deux parties sont en contact étroit l'une par rapport à l'autre. L'autre bord du cadre de guide à glissière (1a, 1b) et, respectivement, le bord correspondant du guide à glissière (6a, 6b) ont une forme telle que, lorsque le guide à glissière (6a, 6b) est mise en place, son bord est en prise stable avec le cadre de guide à glissière (1a, 1b). En outre, le guide à glissière (6a, 6b) est retenu à l'aide de pièces de fixation distinctes à la traverse d'avance (1), si bien qu'elle ne peut se déplacer ni dans le sens transversal ni dans le sens longitudinal par rapport à ladite traverse d'avance (1).

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