▎ 摘　　要

NOVELTY - This utility model claims a sort of automobile brake disc, comprising a shell, one side of the shell are respectively provided with a sealing ring, a cover plate and a connecting screw rod, connected to the outer wall of the screw rod is provided with a nut, the top of the shell are respectively provided with a heat dissipation hole and a hydraulic pipe, one side of the cover plate is provided with a screw, the other side of the shell is provided with a mounting plate, the inside of the shell are respectively provided with a rotating shaft, the bearing and the brake disc, the outer wall of the bearing is provided with a heat dissipation plate, the outer wall of the heat dissipation plate is provided with a fan blade, the bottom of the hydraulic pipe is provided with a brake sheet; the inner side of the brake block is provided with a spring, the outer wall of the brake disc is provided with a friction surface, two sides of the brake disc are provided with a graphene coating graphene coating is respectively set on the inner side of the mounting hole and the fixing hole. The utility model is equipped with heat dissipation plate, a fan blade, a heat dissipation hole, solves the problem that the existing brake disc brake and brake disc braking ability is insufficient and the problem of heat dissipation effect is poor.