Crusher with annular working surface, rotating cylinders and wear plates

Abstract From the Canadian patent

The invention concerns crushers including an annular working surface (12) covered with wear plates (14) and on the inner surface of which one or more cylinders (16) rotate cylinders which are pressed onto the surface by their weight or by centrifugal force or by external means such as hydraulic cylinders or springs. To reduce the risk of breakage of the wear plates from the action of the cylinders which exert high pressure, the wear plates (14) comprise an inner face or working face whose shape corresponds to that of the rolling surface and a flat outer face or bearing face and the part of the body of the crusher (10) supporting the surface (12) has an inner prismatic surface (30) on which …