Cone crusher

Abstract

A cone crusher is provided including a frame having a top shell assembly and a bottom shell assembly, and a crusher main shaft slidably supported by the frame. The top shell assembly comprises a spider assembly having a central hub for receiving a top end of the main shat. The bottom shell assembly comprises a hydraulically operated piston assembly configured to raise and/or lower the main shaft with respect to the frame. The top shell assembly further comprises a first crush surface. The crusher further comprises a crusher head assembly supported by the main shaft, the crusher head assembly comprising a second crush surface, wherein the first and second crush surfaces define therebetween a crushing chamber and an opening through which material leaves the crushing chamber when the crusher is in use. The crusher further comprises an adjustment arrangement configured to adjust the position of the first crush surface.

Dependencies are inferred from the claim text.