What is the car suspension hem arm
automotive suspension hem arm is an important part of automotive suspension system, mainly plays the role of supporting the body and shock absorber, can buffer the vibration in the driving to ensure the smooth and comfortable .
The lower swing arm is usually composed of the upper control arm and the lower control arm. The upper control arm is connected with the steering knuckle and the lower swing arm, and the lower control arm is connected with the wheel and the lower swing arm. This structure can withstand the impact and transfer to the frame to ensure the stability and safety of the car .
The specific functions of the lower arm include:
Support the body and shock absorbers : cushion the vibration in the driving, ensure a smooth and comfortable .
Connecting shock absorbers and springs : with shock absorbers and springs to form a complete suspension system, support vehicle weight, ensure flexible steering .
bearing impact : can absorb the lateral and longitudinal impact load from the wheel, ensure the stable contact between the wheel and the ground, and improve the driving comfort and stability .
Connecting the steering knuckle to the frame : enables the wheels to rotate freely, and facilitates the driver to steer the car to .
If the bottom arm of the car is damaged, the following problems will occur:
Reduced handling and comfort : Damage to the lower swing arm will lead to unstable driving and serious turbulence.
reduced safety performance : may produce abnormal sound, the shock absorption effect is poor, the steering is heavier, and in serious cases, the swing arm will break and the vehicle will be out of control .
other parts worn or damaged : such as tire wear, steering affected or even failure .
Therefore, regular inspection and maintenance of the hem arm is very important to ensure the stability and safety of the vehicle.
The main functions of the automotive suspension hem arm include supporting vehicle weight, cushioning vibration and ensuring driving stability . To be specific:
Support vehicle weight : As part of the suspension system, the lower swing arm distributes the vehicle's gravity throughout the suspension system to ensure that the vehicle can maintain stability in all kinds of road conditions .
shock buffer : when the vehicle is driving on an uneven road surface, the lower swing arm absorbs and slows down the vibration transmitted by the road surface through its elastic characteristics, protecting the passengers in the car from the impact of bumps .
ensure driving stability : the lower swing arm, the frame (or subframe) and the upper swing arm together form a "triangular" structure to provide lateral stability and longitudinal stability of the vehicle. Lateral stability refers to the stability of the vehicle when turning, and longitudinal stability refers to the ability of the vehicle to maintain a straight line in straight road conditions .
In addition, the lower arm is responsible for connecting the shock absorbers and springs to form a complete suspension system, supporting the weight of the vehicle and ensuring flexible steering .
It can also withstand the lateral and longitudinal impact loads from the wheels, effectively absorb these forces, ensure the stability of the wheels in contact with the ground, and improve the driving comfort and stability .
If the lower swing arm is damaged, it will cause problems such as reduced controllability and comfort, reduced safety performance, abnormal sound, inaccurate positioning parameters, and deviation .
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