The components of hydraulic drum brakes are mainly composed of brake drums, brake pads, brake cylinders, brake force transmission rods, hydraulic pipelines, hydraulic pumps, etc. Among them, the brake drum is a metal cylinder installed on the wheel, the brake pads are friction materials installed inside the brake drum, the brake cylinder is a component that contacts the brake pads with the brake drum through hydraulic force, the brake force transmission rod is used to transmit the brake force, and the hydraulic pipeline is used to transfer the hydraulic pressure generated by the hydraulic pump to the brake cylinder. The working principle of ywz3 electric hydraulic drum brake hydraulic drum brake is to push the piston inside the brake cylinder outward through hydraulic pressure, thereby making contact between the brake pads and the brake drum. Specifically, when the driver presses the brake pedal, the hydraulic pump generates a certain amount of hydraulic pressure, pushing the hydraulic oil in the hydraulic pipeline into the interior of the brake cylinder, causing the piston to move outward. As the piston moves, the brake pads inside the brake cylinder will also move outward and come into contact with the brake drum, thereby achieving the braking effect. During the contact between the brake pads and the brake drum, the brake pads are affected by the centrifugal force generated by the rotation of the brake drum, thereby increasing the friction between the brake pads and the brake drum, making the braking effect more significant. When the driver releases the brake pedal, the hydraulic oil in the hydraulic cylinder will automatically return to the hydraulic pump, the piston will also move inward, and the contact between the brake pads and the brake drum will be released accordingly. Released on April 17, 2024 at 16:18
Author: Joyful Brake in Jiaozuo City
Link: https://zhuanlan.zhihu.com/p/693009238
Source: Zhihu
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