ROLL CRUSHER Russian patent published in 2012 - IPC B02C4/00 

FIELD: machine building.

SUBSTANCE: invention relates to grinding of materials. Proposed crusher comprises housing 1 to accommodate driven rolls 2 running in plain bearings. Antifriction bushing of said bearing 6 consists of two semi-rings 3 and 4, one being rigidly secured in bearing housing and another one is arranged to get in contact with roll journal by means of clearance adjustment device. The latter is provided with elastic pneumatic element 5 made up of, for example, a cylinder.

EFFECT: higher reliability.

1 dwg