Brake disc with good wear resistance

The brake disc comprises a brake disc body, a reinforcing mechanism is arranged in the brake disc body, a mounting disc is fixedly connected to the middle of the brake disc body, the top end and the bottom end of the brake disc body are both coated with wear-resistant layers, and an arc-shaped through groove is formed in the outer side of the brake disc body; the reinforcing mechanism comprises a first reinforcing disc and a second reinforcing disc, the reinforcing mechanism is arranged in the brake disc body, the stability between the first reinforcing ring and the second reinforcing ring is improved through the reinforcing blocks, and the first reinforcing ring and the second reinforcing ring are prevented from deforming; therefore, the stability between the first reinforcing disc and the second reinforcing disc is improved through the first reinforcing ring and the second reinforcing ring, the rigidity of the top and the bottom of the whole brake disc is effectively improved through the first reinforcing d