Patent ID: 7552883
Filing Date: 2009-06-30
Classification: B02C

Abstract:
1. Crushing device, which includes a frame structure and a rotor having ends mounted rotatably to the frame structure by bearings, shredder elements, which are arranged in connection with both the frame structure and the rotor, and a hydraulic motor connected to one said end of the rotor through a power transmission, material fed to the crushing device being arranged to travel through the shredder elements while at the same time being crushed into smaller pieces when the rotor is rotated by the hydraulic motor, characterized in that at at least one end of the rotor, the rotor is fitted to the frame structure by means of a pivot joint, which permits a difference of angle between the rotor and the frame structure, the pivot joint being fitted between the frame structure and the bearing at the end of the rotor that is connected to the hydraulic motor.