Traditional Culture Encyclopedia - Traditional festivals - Why is there a suspension assembly on a car? Generally there are those parts of the composition

Why is there a suspension assembly on a car? Generally there are those parts of the composition

Automobile suspension is an elastic device that connects the frame with the axle in an automobile. It is generally composed of elastic elements, guiding mechanisms, shock absorbers and other components, the main task is to ease the impact of the uneven road surface transmitted to the frame, in order to improve the comfort of the car.

Automobile suspension includes three parts: elastic element, shock absorber and force transmitting device, which play the roles of cushioning, damping and force transmitting respectively.

Coil spring: It is the most used spring in modern automobile. Its shock absorption capacity is strong, ride comfort is good; the disadvantage is that the length is large, occupies more space, the installation position of the contact surface is also larger, making it difficult to achieve a very compact suspension system arrangement. Because the coil spring itself can not withstand lateral force, so in the independent suspension had to use four-link coil spring and other complex combination of institutions.

Leaf springs: mostly used in vans and trucks, are made of a number of long, thin springs of different lengths. It is simpler than the coil spring structure, low cost, can be compactly assembled on the bottom of the body, the work of the friction between the various pieces, and therefore has its own attenuation effect. However, if serious dry friction occurs, the ability to absorb shock will be affected. It is rarely used in modern cars that emphasize ride comfort.

Torsion bar spring: A long bar made of spring steel with torsion rigidity. One end is fixed to the body, and one end is connected to the upper arm of the suspension, when the wheel moves up and down, the torsion bar undergoes torsional deformation, playing the role of spring.

Expanded Information

Independent suspension, general sedan front wheels commonly used suspension structure. The left and right wheels do not interfere with each other, independent pivot point up and down the left and right movement, the car comfort is better.

Non-independent suspension, part of the low-end sedan and the French car structure, the left and right wheels are connected through a shaft, a single side of the wheel with the road conditions to float the other side of the wheel with the reverse direction of movement, certainly not better than the independent suspension, but the cost savings, and the French have always believed that their tuning of non-independent suspension vehicle performance does not have to be independent of the suspension of the poor.

Semi-independent suspension, in the non-independent suspension on the basis of a balance bar to improve the inherent shortcomings of non-independent suspension, horizontal direction to play a stabilizing effect.

Baidu Encyclopedia - Suspension Systems