Shrimp shell crushing cutter

The utility model discloses a shrimp shell crushing cutter which comprises a main shaft, a cutter head and a cutter head, the cutter assembly comprises a sleeve and a crushing cutter, the crushing cutter is fixedly arranged on the peripheral wall of the sleeve, the sleeve is arranged at the bottom of the main shaft in a sleeving mode, a limiting block is arranged on the inner wall of the sleeve, the limiting block is clamped into the hanging groove to achieve circumferential limiting, and the bottom of the limiting block abuts against the bottom wall of the hanging groove; and the threaded cylinder is in threaded connection with the peripheral wall of the main shaft and located above the cutter assembly, and the threaded cylinder abuts against the upper end of the sleeve and is used for being matched with the bottom wall of the hanging groove to clamp and fix the cutter assembly. The crushing cutter and the sleeve are integrally arranged, the sleeve is arranged on the main shaft in a sleeved mode, the limitin