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At present, dangerous vehicles must be preceded by front brakes and rear drum brakes before they can go to households including tanker refuelling trucks, tankers, etc. Tankers refueling trucks currently on the market are not equipped with rear brake drum brakes but have been installed from this year onwards. The vehicle must meet the front disc brake drum brake before it can be put on the card
Generally, the front drum brake drum brake vehicle is more than 20,000 yuan more expensive than an ordinary vehicle. The user who purchases the car can use this to determine whether the price of the car is reasonable. The definition of the disc brake and drum brake is as follows.
The disc brake uses a metal block (disc) instead of a drum. There is a flat brake shoe on both sides of the brake disc. When the pressure from the brake master cylinder is pumped to the sub-cylinder, the brake shoe is clamped to the brake disc to achieve The brake effect is currently widely used in the front wheel. Some advanced vehicle devices have four-disc brakes. Their advantages are sensitive, good heat dissipation, no need to adjust the brake gap, maintenance is easy to use the drum brake is to use the brake drum inside static A brake pad, a brake device that rubs against a brake drum that rotates with the wheel to produce friction that reduces the rotational speed of the wheel.
When the disc brakes depresses the brake pedal, the force of the foot will cause the piston in the master cylinder to push the brake fluid forward and generate pressure in the oil circuit. The pressure is transmitted to the brake cylinder piston of each wheel via the brake oil. The piston of the brake cylinder then pushes the brake pad outward, causing friction between the brake pad and the inner surface of the brake drum, and generating enough friction force to reduce the rotational speed of the wheel. In order to achieve the purpose of braking
Disc brakes are sometimes called disc brakes. They are divided into ordinary disc brakes and ventilated disc brakes. Ventilated disc brakes are used to drill many circular vent holes in the disc surface, either cutting vent slots or prefabricating rectangular vent holes in the end face of the disc. Ventilated disc brakes use wind currents to perform better than ordinary disc brakes. The main advantage of the disc brake is that the brake can be quickly braked during high-speed braking, and the heat dissipation effect is better than the constant of the drum brake braking performance. It is easy to install advanced electronic equipment like ABS.
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