The car not only needs to run fast but also to brake
Release time:
Mar 27,2023
The quality of a car is not to see how fast the car can run, is to see the car no matter how fast it can stop, let the car stop is the car parts, it is the car brake (also called brake), the full name of the brake system (also called brake system), the brake system is divided into disk brake (also called disc brake) and drum brake two kinds of brake (brake). Generally 7 or 7 seats below the small vehicles are using disc brake brake, large vehicles (buses, trucks) are using drum brake brake.
What is a disc brake?
Disk brake, as the name suggests, is a static brake caliper (brake pad installed under the caliper), and the wheel coaxial brake disc friction and slow down the wheel until the stop of the device. Disc brake calipers are typical of static braking, calipers on both sides of the brake piston, generally 4 piston calipers, some super car or high-grade models are six piston calipers, such calipers brake pads and brake discs will increase accordingly, in order to improve braking efficiency.
The advantages of the disc brake are:
1, the structure is simple, composed of brake piston, brake caliper, brake pad, brake disc, easy maintenance.
2, high heat dissipation performance, high frequency brake is not easy to produce heat attenuation, not easy to cause brake recession and lead to brake failure
3, the environment has a small impact on the brake, rainy day has a small impact on the brake system, can be ignored. But a tire skid is not controlled by the braking system.
The disadvantages of the disc brake are:
1, there is no automatic braking effect, requiring greater braking force, or the need for greater strength of the hydraulic piston device to complete the brake.
2, the friction area between the brake pad and the brake disc is small, so that the brake force is relatively small (mostly used for small mass, small vehicles)
3, it is not easy to install the hand brake device, need to add a group of drum brake hand brake mechanism.
4, brake pad wear larger, resulting in higher replacement frequency may be higher.
How to maintain?
1, check the brake liquid level, the liquid level is too low to replenish the brake fluid in time, check the purity of the brake fluid, too dirty brake fluid will greatly reduce the braking effect.
2, check the brake pad, brake pad is easy to wear parts, general car run 30,000 kilometers will often check the thickness of the brake pad, 60,000 kilometers can be considered to replace.
What is a drum brake?
Two semi-circular brake pads are arranged inside the wheel hub, and the "lever principle" is used to push the brake pads so that the brake pads contact with the inner surface of the wheel drum and produce friction. Simply put, the drum brake is the use of the brake drum static brake pads, to friction with the wheel rotation of the brake drum, to produce friction to reduce the wheel rotation speed or stop the brake device.
What are the advantages and disadvantages of the drum brake?
The advantages of drum brake are:
1, with automatic tightening effect, brake system can use lower oil pressure, or use the diameter of the brake disc is much smaller than the brake drum.
2, with drum brake vehicles, easy to install handbrake device.
The disadvantages of drum brake are:
1, easy to produce thermal attenuation, not continuous high frequency brake, easy to cause brake failure.
2, brake system response is slow, brake pedal strength is not easy to control, not conducive to high frequency brake action.
3, the structure is more complex, not easy to maintain.
4, affected by the environment, rain drum brake water will produce brake recession or failure.
HEBEI XINGZHU MACHINERY MANUFACTURING CO. LTD