| 摘要 |
A gyratory crusher for crushing frangible or friable material where the crushing head is supported for drive in gyratory movement within the bowl, in which the head gyrates on a gyratory axis which is inclined with respect to, and intersects the central axis of the bowl, at an angle which is substantially fixed in use of the crusher. The head is supported by a bearing system including a first bearing component which is secured in relation to the crushing head and a second component which is mounted in relation to a frame. Drive is achieved by a mechanical arrangement in which, during its gyratory motion, the gyratory axis traverses a substantially fixed cone of revolution which has its apex at the intersection of the gyratory axis and the central axis of the bowl.
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