Hammer mill fastener with anti-loosening function

The utility model relates to the technical field of hammer mill fasteners, and discloses a hammer mill fastener with an anti-loosening function, which comprises a rotor shaft body, and a fastening mechanism is arranged in the rotor shaft body; the fastening mechanism comprises two groups of hammer main bodies, two groups of fixing bolts are arranged in the rotor shaft body, the outer surface of each fixing bolt is in threaded connection with a nut, two groups of mounting grooves are formed in the two side surfaces of the rotor shaft body, a partition plate is fixedly mounted on the inner wall of each mounting groove, and a ball screw is rotationally connected in each mounting groove; the outer surface of each ball screw is in threaded connection with a limiting plate, and the outer surfaces of the two sets of limiting plates make contact with the outer surfaces of the fixing bolts and the nuts correspondingly. According to the hammer mill fastener with the anti-loosening function, the rotor shaft body, the ha