Crusher for mineral materials or recycled materials

Abstract

The invention relates to a crusher for mineral materials or recycled materials, in particular rotary impact crushers or jaw crushers, having a crusher unit (), which has a movable first crusher body (), in particular a rotor or a crusher jaw, wherein a second crusher body (), in particular an impact rocker or a crusher jaw, is assigned to the first crusher body (), wherein a crushing gap () is formed between the crusher bodies (), wherein a movable assembly of an overload triggering device () is coupled to the first or to the second crusher body (), wherein the movable assembly has a cylinder () of a hydraulic cylinder () or a piston () guided in the cylinder (), wherein the movable assembly is designed to permit a motion of the coupled crusher body () increasing the width of the crushing gap () in an evasive motion, wherein a pressure chamber () is formed in the hydraulic cylinder (), which pressure chamber is delimited by a piston (), and wherein the overload triggering device () has a valve (), which, in its open position, establishes a fluid-conveying connection between the pressure chamber () and a compensation area () and, in the closed valve position, blocks this connection. In order to achieve an efficient protection of the crusher unitagainst overload situations in such a crusher, provision is made for the valve () to be formed between two components of the movable assembly that are movable relative to each other.