Chapter 6 Brake System Section2 Brake To a greater or lesser extent,drum brakes are using the friction enhancement to the brake shoes to guarantee the braking effect,so they are easy to operate.Their braking effects are not stable enough because the friction coefficient will reduce when the temperature increases,and the brake drums will expand when they are heated, which will cause the brake gaps increasing,so the operation is inconvenient.Besides,their thermal performance is poor.Therefore, the drum brakes are mainly used in tractors and heavy-duty trucks, and cars and light trucks mostly use disc brakes. Features: Self-servo,easy to operation; Braking effect is not stable enough; Poor thermal performance. 械电子工程学 Automobile and Tractor Northwest A&F University
Automobile and Tractor Northwest A&F University Chapter 6 Brake System To a greater or lesser extent, drum brakes are using the friction enhancement to the brake shoes to guarantee the braking effect, so they are easy to operate. Their braking effects are not stable enough because the friction coefficient will reduce when the temperature increases, and the brake drums will expand when they are heated, which will cause the brake gaps increasing, so the operation is inconvenient. Besides, their thermal performance is poor. Therefore, the drum brakes are mainly used in tractors and heavy-duty trucks, and cars and light trucks mostly use disc brakes. Features: Self-servo, easy to operation; Braking effect is not stable enough; Poor thermal performance. Section 2 Brake
Chapter 6 Brake System Section2 Brake 3.Disc Brake 3.1 Caliper Disc Brake 3.1.1 Fixing-caliper disk brake b) Figure 6-8 Diagram of fixing-caliper disk brake 机械持电子工程度 Automobile and Tractor Northwest A&F University
Automobile and Tractor Northwest A&F University Chapter 6 Brake System 3. Disc Brake 3.1 Caliper Disc Brake 3.1.1 Fixing-caliper disk brake Figure 6-8 Diagram of fixing-caliper disk brake Section 2 Brake