There are two common brake systems for sanitation garbage trucks: disc brakes and drum brakes. What is the difference between the working principles of these two braking methods? First, there are two types of disc brakes: floating disc brakes and fixed caliper disc brakes.
The advantages of floating disc brakes: the brake has good braking performance, simple structure, low cost, small size, and can be embedded in the wheel spokes to improve the vehicle's anti-deflection ability. Generally, it is more used on family cars, like sanitation garbage It is less used in special vehicles such as cars.
The working principle of disc brake: When the car is braking, the brake fluid enters the brake caliper body from the oil inlet, the piston moves one after another, pushing the brake caliper body to move left along the guide pin under the action of the brake fluid reaction force. Clamp the brake disc together left and right to make the vehicle brake successfully and stop the movement.
Advantages of fixed caliper disc brake: Its structure is similar to that of floating caliper disc brake, but the caliper body cannot be moved, there are more cylinders, the structure is complex, and the size is larger. The cylinder or the tubing of the jump brake disc is easy to be heated and vaporized , And during emergency braking, it is easy to cause the wheels to lock, the braking efficiency is not good, and it is not safe. If it is used for the parking brake, a mechanically actuated parking brake caliper must be installed.
The working principle of the fixed caliper disc brake: When braking, the brake fluid enters the caliper body from the oil inlet, pushing the pistons and brake pads on both sides to move to the brake disc at the same time, gradually clamping the brake disc, so that the wheels stop Rotation, with the help of the adhesion of the tires and the ground, the entire car is stopped.
Advantages of drum brakes: The origin of its name is because the rotating element is a brake drum. It is generally composed of a rotating element, a brake drum and a fixed element. Drum brakes can be divided into cylinder type and cam type brakes. The hydraulic brake system mainly uses cylinder type drum brakes. Disc brakes and drum brakes have their own advantages. Generally, drum brakes are used to brake the rear wheels. Drum brakes have a better braking effect, but they are large in size. Disc brakes are generally used to brake the front wheels and are small in size