What are the functions of the pull rod and anti-roll bar of the automobile chassis?

Anti-roll bars are usually fixed to the lower arms of the left and right suspensions. When the car is cornering, centrifugal force will act on the roll center of the car and cause the car body to roll, which will cause the suspension of the inner wheel and the outer wheel to stretch and compress, and lead to the extension and torsion of the anti-roll bar. The resilience generated by the torsion of the rod will be used to restrain the rolling of the car body. The function of the pull rod is:

1, front wheel lower swing arm balance pull rod

Designed and installed on the front axle and front wheel, the main function is to control the camber angle of the front wheel; See Xiao Juan.

2. Direction toe-in balance pull rod

Designed and installed on both sides of the lower arm of the front wheel to control the overall symmetry of the front wheel in the direction. The main function is to be responsible for the front wheel rake angle and keep the tracking ability of the steering wheel;

3. Balance tie rod at the top of front wheel shock absorber tower

Designed to be installed at the top of the front shock absorber tower. The main function is to enhance the rigidity of the engine room and the front body, offset the deformation of the frame caused by centrifugal lateral torsion (in severe cases, the deformation may lead to the tearing of the top of the tower), improve the cornering ability of the vehicle, increase the cornering speed, and reduce the roll angle of the body under the centrifugal force;

4. Balance pull rod of front bottom cross beam

It is designed and installed at the joint of the front axle and the front of the chassis of the frame. Its main function is to strengthen the connection strength between the front bottom cross beam (front axle) and the chassis, reduce the displacement and deformation of the front axle caused by centrifugal force and car body distortion, and also improve the cornering performance;

5. Balance tie rod at the top of rear wheel shock absorber tower

Designed to be installed at the top of the rear shock absorber tower. The main function is to enhance the strength of the trunk, reduce the lateral distortion caused by the centrifugal force at the rear of the car, reduce the roll of the rear of the car when cornering and improve the cornering performance of the car;

6. The rear axle is suspended to strengthen the balance pull rod.

It is designed and installed at the joint between the rear axle and the rear of the chassis of the frame. The main function is to strengthen the connection strength between the rear axle and the frame;

7, frame (body) chassis reinforcement balance bar

It is designed and installed in the middle of the frame chassis, and its main function is to strengthen the overall rigidity of the frame chassis. According to the different factory design of vehicles, the frame structure is also different, some are omitted, and some are replaced with other structures.

In addition, the anti-roll support frame of the car body (cockpit) and the side door reinforced steel beam have been professionally modified to enhance the overall rigidity of the car body, which are all necessary modification projects for professional competition. The balance bar is made of very delicate materials, which is not easily replaced by ordinary steel. It is not only required to be as light as possible, but also to match the hardness of the body material, so as to achieve a harmonious whole.

Vehicles with different chassis designs cannot change the accessories of other vehicles at will. After a serious collision accident, the deformed balance bar and its components should be completely replaced, rather than completely repaired by heating correction. Otherwise, even if it is corrected and reset, the change of the material itself will affect the safety and stability of high-speed driving.