Suspension system is an important part of modern automobile, which has great influence on ride comfort and handling stability. Automobile Control arm (Control arm, also known as swing arm) as the steering and force transmission component of automobile suspension system, will act on the wheel of various forces to the body, and ensure that the wheel according to a certain track movement. The control arm of the car connects the wheel and the body of the car together by ball hinge or bushing, respectively. The vehicle control arm (including bushings and ball heads connected to it) shall have sufficient stiffness,strength and service life.
Structure of automobile control arm
1. Stabilizer link
When the suspension is installed, one end of the stabilizer bar link is connected with the transverse stabilizer bar through the rubber bushing, and the other end is connected with the control arm or cylindrical shock absorber through the rubber bushing or ball joint. The transverse stabilizer bar link is used symmetrically in the home selection, which can improve the operation stability.
2. Tie rod
During suspension installation, the rubber bushing at one end of the tie rod is connected with the frame or vehicle body, and the rubber bushing at the other section is connected with the wheel hub. This kind of control arm is mostly applied to the tie rod of automobile multi link suspension and steering system. It mainly bears the transverse load and guides the wheel movement at the same time.
3. Longitudinal tie rod
The longitudinal tie rod is mostly used for drag suspension to transfer traction and braking force.
4. Single control arm
This kind of vehicle control arm is mostly used in multi link suspension. Two single control arms are used together to transfer the transverse and longitudinal loads from the wheels.
5. Fork (V) arm
This kind of automobile control arm is mostly used for the upper and lower arms of double wishbone independent suspension and the lower arm of McPherson suspension. The fork structure of the arm body mainly transmits transverse load.
6. Triangular arm
This kind of vehicle control arm is mostly used in the lower arm of front suspension McPherson suspension to transfer transverse and longitudinal loads and control the relative movement of wheels and body.