A GYRATORY CRUSHER AND A METHOD FOR ADJUSTING THE SETTING OF A GYRATORY CRUSHER

摘要

A gyratory crusher comprising at least a frame (1 ) and a main shaft (2), as well as at least a first crushing blade (3) fitted in the frame, and a second crushing blade (4) fitted on the main shaft. The crusher also comprises a first bearing unit (7) fitted to support the main shaft (2) on the frame (1 ) above the second crushing blade (4), and a adjusting piston (8) to change the setting of the crusher. The adjusting piston (8) is fitted at least partly inside the main shaft (2). The invention also relates to a crushing plant and a method for adjusting the setting of a gyratory crusher.