What is the upholstered upper body of a car rear suspension
The automotive rear suspension cushion upper body refers to the rubber cushion block installed between the automotive engine and the frame, which is mainly used to absorb shock and reduce noise to ensure the smooth operation of the universal transmission device. These cushions are usually made of rubber and have good elasticity and wear resistance, which can effectively slow the vibration of the body and compartment during the running of the vehicle .
Structure and function
The upper body of the rear suspension cushion is mainly composed of the rubber main spring and the base, and some of the design will also add metal reinforcement inside the rubber main spring to improve the stiffness and durability of the suspension. This design can not only effectively absorb shock, but also enhance the safety of the car .
Common problems and solutions
If the rear mount cushion fails (such as hardening, breakage or falling off), it will not be able to absorb the bumps in the vehicle, resulting in increased vibration when the engine is running, and even in the acceleration and braking of the engine to the front and back, which may lead to the rupture of the parts. Therefore, it is very important to regularly inspect and replace damaged suspension cushions .
The main role of the car rear suspension cushion upper body includes the following aspects :
shock absorption and buffering : Through its elastic characteristics, the rear suspension cushion upper body can effectively absorb and disperse the shock and impact during the running of the vehicle, reduce the body and passengers' sense of turbulence, improve the ride comfort .
Protect engine and other mechanical parts : cushion can reduce the vibration of the engine during operation, prevent the mechanical parts from being damaged by vibration, extend the service life of the engine and other mechanical parts .
adaptive form and position error : in the process of vehicle driving, due to the uneven road surface and other factors, the vehicle will produce form and position error. The rear suspension cushion upper body can adapt to these errors to maintain the stability and balance of the vehicle .
improve ride stability : through reasonable design and use of cushion, can reduce the transmission system jitter and noise, improve vehicle ride stability and driving experience .
absorbed energy : when the vehicle crashes, the upper body of the rear suspension cushion can absorb part of the impact energy to reduce the injury to the body and passengers .
The main manifestations of the failure of the upper body of the automotive rear suspension cushion include the following :
Body vibration and abnormal sound : When the rear suspension cushion upper body fails, the vehicle may produce significant vibration during driving, especially on uneven roads. In addition, you may also hear a "click" abnormal sound, especially when the engine is idling .
steering wheel tremor : When the engine is idling, the steering wheel tremor will be more obvious than normal, which is usually a sign of suspension cushion damage .
Console, seat, and body tremors : Console, seat, and body tremors may occur to varying degrees when the engine is idling. This is also a common sign of suspension cushion damage .
hydraulic oil leakage : the suspension cushion may have poor seal, resulting in hydraulic oil leakage, and then affect its normal hydraulic support .
fatigue aging : the suspension cushion will age due to fatigue during use, resulting in a decrease in hydraulic support force, unable to effectively absorb bumps in the road .
Possible causes of failure include :
gasket cracking and separation : The gasket for suspension gaskets may crack or separate due to aging or overuse.
support deformation : upholstered supports may be deformed due to long-term pressure.
hydraulic oil leakage : Due to poor seal, hydraulic oil may leak, affecting the normal work of the suspension cushion.
fatigue aging : long-term use will lead to suspension cushion fatigue aging, decreased support.
The solution :
Replacement of suspension cushion : If the suspension cushion is found to be damaged or aged, it should be replaced with a new cushion in time.
Check and repair hydraulic system : If hydraulic oil leakage is found, check and repair the hydraulic system.
Periodic maintenance : Periodically check the status of the mounting cushion and replace the aging parts in time to ensure their normal operation.
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