Sprinkler Disc Brakes and Drum Brake Features

Sprinkler disc brakes have been widely used in cars, but in addition to the use of all the wheels in some high-performance cars, most of them work only on the front brakes, and with the rear drum brakes, in order to have a higher system of cars Movement direction stability. Compared to drum brakes, disc brakes have the following advantages: The brake performance is less affected by the friction coefficient and the braking performance is stable. After the water soaking, the brake performance is not obvious. It only needs to be braked once or twice. Has good self-cleaning ability and good heat dissipation performance.

The brake gap setting is small. At the same time, since the thermal expansion of the brake disc in the axial direction is very small, the brake gap does not increase significantly after the thermal expansion of the brake drum of the sprinkler truck, resulting in excessive brake pedal travel. It is easier to achieve self-adjustment of the brake clearance, and other maintenance operations are also more convenient. At the same time, the defects of disc brakes are as follows: The requirements for the manufacture of brakes and brake lines are high, the wear of friction discs is large, and the cost is high. Moreover, due to the small area of ​​the friction plates, the relatively small surface area of ​​the friction, the high brake hydraulic pressure required, the vehicles with the help of the devices can be used to make the performance lower, and therefore, it is necessary to use the hydraulic brake system with D Dynamic actuation of the pipeline pressure is high, generally use servo devices. The brakes are rough.

When used in parking brakes, the sprinkler parking brake device to be added is complicated. How to check and adjust the brake pedal height and free travel? Use a ruler to measure the height and free travel of the brake pedal. If it exceeds the specified range, adjust it. Brake pedal height check and adjustment, pedal height check: Disconnect the brake light switch plug, release the brake light switch lock nut, and unscrew the brake light switch so that it is no longer in contact with the brake pedal. Raise the carpet and measure the distance from the cab floor to the midpoint of the upper surface of the pedal.

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