Hobbing cutter anti-shearing locking device

The utility model provides a hobbing cutter anti-shearing locking device which comprises an end cover used for placing a hobbing cutter, a connecting bolt used for connecting the end cover and a hobbing cutter shaft is arranged on the end cover, a plurality of anti-shearing pins distributed in a circular array are further arranged on the end cover, the anti-shearing pins are in interference fit with the hobbing cutter shaft, and the hobbing cutter shaft is connected with the connecting bolt. The connecting line of the anti-shearing pin and the center of the hob shaft is smaller than that of the connecting bolt and the center of the hob shaft, the anti-shearing pin comprises a pin body, a blind hole is formed in the end, away from the hob shaft, of the pin body, a pair of plate holes communicated with the blind hole is formed in the side face of the pin body, the section of each plate hole is in a fan shape, and the connecting bolt is arranged in the blind hole. And a pair of insertion holes communicated with