ASSEMBLY AND METHOD FOR RESTRICTING SPINNING IN A GYRATORY CRUSHER

摘要

A crusher system (48) comprises a gyratory crusher (10), which has a crushing head, on which a first crushing shell is mounted; a frame, on which a second crushing shell is mounted; and a driving device, which is arranged to cause, by means of a rotating eccentric, the crushing head to execute a gyratory movement with a view to crushing material. The crusher system (48) comprises a means (56) for generating a signal that indicates the current tendency of the crushing head to spin; a means (58) arranged to establish, based on the signal, a maximum allowable rotational speed for the eccentric; and a means (58) arranged to adapt the rotational speed of the eccentric to a rotational speed that is lower than said maximum allowable rotational speed.