The role of the rear arm of a car.
The main functions of the rear longitudinal arm of a vehicle include accurate control of the freedom of wheel movement, providing excellent overall lateral stiffness, alleviating the change of wheel base and wheelbase, improving ride comfort, enhancing the load carrying capacity and intelligence level of the vehicle.
As an important part of the rear suspension system of automobile, its function is mainly reflected in the following aspects:
Accurate control of the freedom of wheel movement: the rear longitudinal arm can ensure that the wheel is in full compliance with the designer's intention, , thus providing stable driving performance.
Provides excellent overall lateral stiffness: The suspension has excellent overall lateral stiffness, can effectively resist the impact of lateral forces on the vehicle, improve stability.
Mitigate the changes of wheel base and wheelbase: In the process of driving, through the precise control of the connecting rod mechanism, the changes of wheel base and wheelbase can be effectively alleviated, thereby prolonging the service life of the tire, and enhance the handling stability.
Improve ride comfort: all connection points are connected by bushing, effectively absorb vibration, improve ride comfort.
Enhance the carrying capacity of the whole vehicle: spring and shock absorber are arranged separately, increases the carrying point of the whole vehicle and increases the carrying capacity.
Improve the intelligent level of vehicles: some models even set a height sensor installation point on the rear crossarm, to further improve the intelligent level of vehicles.
In addition, rear longitudinal arm also realizes the precise adjustment of camber Angle by cooperating with eccentric bolts, effectively controls the camber change in the process of wheel movement, becomes the main path of lateral force transmission, is very important to ensure the stability of vehicle. These functions work together, makes the rear longitudinal arm become an indispensable key component in the rear suspension system of modern automobiles.
What does the rear longitudinal arm of the car affect badly
Problems with the rear longitudinal arm (or rear arm) of the vehicle will lead to reduced handling and comfort, reduced safety performance, abnormal noise during driving, inaccurate positioning parameters leading to vehicle deviation, and abnormal wear or damage to other components. To be specific:
Reduced handling and comfort: Damage to the rear longitudinal arm can affect the handling stability and ride comfort of the vehicle, as this component has a direct impact on the suspension and stability of the vehicle.
Reduced safety performance: Damaged rear longitudinal arms will reduce the safety performance of the vehicle, which may lead to unstable control of the vehicle in the event of an accident or emergency.
Abnormal noise during driving: A damaged rear longitudinal arm may produce noise during driving, which may affect the driving experience and prompt the owner to check for repairs.
Positioning parameters are not allowed to lead to vehicle deviation: the problem of the rear longitudinal arm may lead to inaccurate positioning parameters of the vehicle, resulting in vehicle deviation, which not only affects driving safety, but also may lead to abnormal wear or damage to other components.
In short, the damage of the rear longitudinal arm has a significant impact on many aspects of the vehicle, and timely inspection and maintenance are needed to ensure driving safety.
When replacing the rubber sleeve of the rear longitudinal arm of the automobile, the bolt needs to be tightened.
In the process of replacing the rubber sleeve of the rear longitudinal arm of the car, to ensure that the bolts are tightened is crucial. This step is not only related to the installation quality of the rubber sleeve, also directly affects the safety and performance of the vehicle. Here are a few things to consider:
Safety considerations: not tightening the bolt may lead to the rubber sleeve is not firmly installed, so that it is loose or fall off during the driving, this will not only damage the rubber sleeve, may also cause damage to other parts of the vehicle, and even affect driving safety.
Prevent screw loosening: when replacing the rubber sleeve, should check and tighten all screws, to prevent screw loosening caused by the rubber sleeve deformation or damage. If screws are found to be loose, should be directly tightened; If the screw is not loose, it is recommended to go to the 4S shop for professional inspection and necessary replacement or repair.
Professional parameter requirements: when replacing the rubber sleeve of the lower arm, meet the professional parameter requirements, cannot be installed at will. each process has its own sequence, assembly sequence can not be changed. It is recommended not to operate under unfamiliar circumstances, you can consult the maintenance master or professional, to ensure that the installation is correct.
Use rubber sleeve curing agent: In order to prevent the aging of rubber sleeve, can be used special rubber sleeve curing agent for maintenance. This can not only insulate moisture, can also extend the service life of the rubber sleeve.
To sum up, when replacing the rubber sleeve of the rear longitudinal arm of the car, to ensure that the bolt is tightened is a necessary step, which is helpful to ensure the safety and performance stability of the vehicle.
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