Cutting roller for a mining machine

Details Cutting roller for a mining machine Cutting roller for a mining machine

E - Fixed Constructions

21

C

262/79

E21C 25/06 (2006.01) E21C 25/10 (2006.01)

Patent

CA 1165783

Abstract The invention relates to a cutting roller for a mining machine, especially for coal mining. Its object is to facilitate smoother delivery by such cutting rollers, without increasing the number of vanes (4 and 5) extend- ing helically about the main body and tipped with cutters. This is achieved by means of helical guides (12 and 13) primarily without cutters and disposed only towards the discharge end of the cutting roller. By way of comparison, the guides extend over a short axial portion of the cutting roller, are disposed between the vanes (4,5) and run parallel thereto, i.e. are arranged at the same helix angle as the vanes (4,5). The number of guides (12 and 13) corresponds to the number of vanes (4,5). The guides (12 and 13) start at the end facing the end ring 3 at about the height of the outer side of the tubular main body and gradually increase to their maximum outer diameter so that the flow of the mineral mined, which are conveyed between the vanes (4,5) are gradually and com- pletely divided into additional flows shortly before their discharge, whereby a smoother delivery with a smaller proportion of fine material is obtained.

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