The invention discloses a fixed caliper disc brake with cooling passages. The fixed caliper disc brake with the cooling passages comprises a brake caliper and a brake disc, wherein the brake caliper is fixed to an external axle and crosses the two sides of the brake disc; the brake caliper is provided with an oil inlet and a liquid runner which are communicated; the liquid runner is provided with two pistons axially symmetrical with the brake disc as the center, and the sides, facing the brake disc, of the pistons are provided with brake blocks; the pistons are further provided with the cooling passages, the two sides of each cooling passage are communicated with the liquid runner, and a check valve used for preventing back flow is arranged on one side of each cooling passage. According to the scheme, the fixed caliper disc brake with the cooling passages has the beneficial effects that the cooling passages are arranged in the pistons, flowing of brake liquid in the cooling passages effectively takes away the heat transmitted from the brake blocks to the pistons in time. Therefore by adoption of the scheme, the heat of the brake can be taken away in time, abrasion of the brake blocks is avoided, and the stability of work performance of the brake is guaranteed.
Fixed caliper disc brake with cooling passages
2016-02-03
Patent
Electronic Resource
English