Chain wheel with protection mechanism

The chain wheel with the protection mechanism comprises a hub plate and a wheel shaft, the wheel shaft is movably arranged in the middle of the hub plate, wheel teeth are fixedly arranged on the outer side of the hub plate, a frame groove is fixedly formed in the surface of the wheel teeth, a wheel framework is arranged on the inner side of the frame groove in an embedded mode, and a shaft ring is arranged on the outer side of the wheel shaft. An auxiliary ring and a wheel ring are sequentially arranged on the outer side of the shaft ring from inside to outside, and balls are embedded between the auxiliary ring and the wheel ring. Under the condition that the wheel ring is subjected to external force, the effect of bearing the external force is achieved through the reinforcing rib structure, the overall stress toughness of the reinforcing rib structure is enhanced through the arranged transition ribs and the springs arranged on the inner side, the overall pressure resistance and stability of the reinforcing r