Straw feed grinder

The invention relates to the field of feed smashing, and discloses a straw feed smashing machine which comprises a supporting bottom frame, a connecting frame, a connecting shaft, a smashing frame, a dustproof box, a discharging opening, an impurity discharging opening, a power motor, a sixth belt transmission mechanism, a feeding mechanism and the like. A smashing frame is arranged on the rear side of the supporting bottom frame, the two ends of a connecting frame are installed on the supporting bottom frame and the smashing frame respectively, a dustproof box is arranged in the smashing frame, a discharging port and an impurity discharging port are formed in the smashing frame, a power motor is installed in the dustproof box, and a connecting shaft is rotationally connected to the connecting frame. According to the device, the feeding frame and the smashing frame are connected through the connecting frame, and the phenomenon that straw feed leaks when entering the smashing frame from the feeding frame can b