The short-shaft design has superseded the long-shaft design in which the eccentric is mounted below the gear. Cone crusher With the rapid development of mining technology, the cone crusher can be divided into four types: compound cone crusher, spring cone crusher, hydraulic cone crusher and gyratory crusher.
A gyratory crusher includes an anti-spin mechanism which couples a lower end of the eccentric shaft of the crusher to the stationary frame of the crusher so as to prevent the eccentric shaft and associated crushing head from spinning when the crusher is not subject to a crushing load.
4. A gyratory type crusher having a frame and a rotationally stationary concave mounted in said frame, an eccentric shaft rotationally mounted about a vertical axis in said frame, an eccentric on the upper end of said shaft, a generally conical crushing head rotatably mounted on said eccentric for gyratory movement thereby and relative to said ...
The crusher illustrated is a short-shaft suspended spindle type, meaning that the main shaft is suspended at the top and that the eccentric is mounted above the gear. The short-shaft design has superseded the long-shaft design in which the eccentric is mounted below the gear.
It is this eccentric bushing and bearing that gives the crusher its crushing action. To understand how it works it might help to learn the dictionary meaning of the word eccentric which is: Differing conspicuously in behaviour, appearance, or opinions.