Disc brakes, also known as disc brakes, are named by their name. It is controlled by hydraulic pressure, the main parts are brake drum, sub pump, brake clamp, oil pipe, etc. the brake disc is made of alloy steel and fixed on the wheel with the wheel. The sub pump is fixed on the floor of the brake. Two friction on the brake clamp. The piston of the pump is placed on both sides of the brake disc. The piston of the pump is driven by the hydraulic pressure of the oil pipe to push the friction plate to brake the brake disc. It acts as if the plate is clamped by the pincers to stop it. The brake is fast, light, simple and easy to adjust. Especially when the load is high. High temperature performance, stable braking effect, and not afraid of mud invasion, driving in winter and bad road conditions, disc brake is more easy to stop in a shorter time than drum brake. Some disc brakes on the brake disc also open a lot of small holes, speed up ventilation and improve the efficiency of braking. In contrast, drum brakes, due to heat dissipation performance In the braking process, a large amount of heat will be gathered. The brake shoe and drum are more easily deformed under the influence of high temperature. It is easy to produce braking decline and vibration, which causes the decrease of braking efficiency.
Of course, disc brakes also have their own defects. For example, the manufacturing requirements of brake and brake lines are higher, the consumption of friction plates is greater, and the cost is expensive, and because the area of the friction plate is small, the working face of the relative friction is small, the required brake hydraulic pressure is high, and the vehicle must be used with the auxiliary device. And the drum brake is made. This is relatively cheap and more economical.