In recent years, with the improvement of people’s living standards, cars have entered the homes of ordinary people, and car springs are in short supply. Various springs have also made more people feel a little confused. Here, Zhengyi springs will give you a brief introduction. Various types of car springs.
●Torsion bar spring
Using a long rod 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 and acts as a spring.
The most used spring on modern cars has strong shock absorption capacity and good ride comfort; the disadvantage is that it is large in length, takes up more space, and the contact surface of the installation position is also large, making the layout of the suspension system difficult to achieve. compact.
Generally, considering the comfort of riding, it is hoped that the spring can be softer for ground impact with high frequency and small amplitude, and when the impact force is large, it can show greater rigidity and reduce the impact stroke, so springs are needed. There are two or more stiffnesses at the same time. Springs with different wire diameters or springs with different pitches can be used, and their stiffness increases with the increase of the load.
It is composed of several slender spring leaves with different lengths. It has a simpler structure and lower cost than a coil spring, and can be compactly assembled on the bottom of the car body. Friction occurs between the various pieces during work, so it has an attenuation effect. But if it produces serious Dry friction will affect the ability to absorb shocks. It is mostly used in vans and trucks, and modern cars that emphasize ride comfort are rarely used.
The stiffness of the gas spring is controlled by a computer. It can be adjusted according to the required stiffness under the conditions of high and low speed, braking, acceleration and turning of the car. Through the use of the main and auxiliary air chambers, the spring can be in two working states of stiffness: The main and auxiliary air chambers are used at the same time, the gas capacity becomes larger, the rigidity becomes smaller, and vice versa. Gas springs also have weaknesses. The height of the car must be controlled by pressure changes. Air pumps must be equipped, as well as various control accessories, such as air dryers. Poor maintenance will cause the system to malfunction. In addition, if metal springs are not used at the same time, if air leakage occurs, the car will not be able to drive.
Using the compressibility of gas to replace metal springs. The biggest advantage of this discovery is that it has a variable stiffness, which gradually increases with the continuous compression of the gas, and this increase is a continuous gradual process, rather than a gradual change. Another advantage is that the stiffness of the spring and the height of the body can be actively adjusted.
Although the spring can reduce the impact of the road on the body, if its vibration is not allowed to stop as soon as possible, we will be riding in a car that does not stop. Therefore, we must add a certain amount of resistance during the movement of the spring. The scientific name is damping, which makes the vibration of the spring attenuate quickly. Our usual damping equipment is a shock absorber.