Rubbing crusher is used in silicon nitride processing

The utility model discloses a rubbing crusher is used in silicon nitride processing, including the operation panel body, the upper surface difference first backup pad of fixedly connected with and thesecond backup pad of operation panel body, the last fixed surface of operation panel body is connected with the casing, the casing is located the right side of first backup pad, fixed the inlaying oflateral surface of first backup pad has first bearing, fixed the inlaying of lateral surface of second backup pad has the second bearing, there are third bearing and fourth bearing in the symmetricalside of casing fixed inlaying respectively, the 3rd bearing position in the below of fourth bearing, and the first axis of rotation of inner circle fixedly connected with of first bearing, the one end of first axis of rotation run through first bearing and third bearing in proper order and extend to the outside of third bearing, and an one end fixedly connected with driving motor of first bearingis kept away from to first