Crushing mechanism of crusher for preparing feed

The utility model relates to the technical field of crushers, and provides a crushing mechanism of a crusher for preparing feed, which is convenient to disassemble and replace and comprises a crusher body, a first shell and a second shell, the crusher body is provided with a motor, a driving wheel and a driven wheel, and the first shell is detachably connected with the second shell. A rotating shaft is detachably connected to the bottom end of the driven wheel, a plurality of mounting holes are formed in the rotating shaft, blades are slidably mounted in the mounting holes, a fixing plate is fixedly connected to the periphery of the blades, two fixing grooves are formed in the fixing plate, locking plates are slidably mounted on the two corresponding fixing grooves, and two locking grooves matched with the fixing plates are formed in the locking plates. The periphery of the rotating shaft is fixedly connected with a plurality of limiting plates, the bottom ends of the limiting plates are connected with a pres