What is the car rear shock absorber core
The rear shock absorber core is an important part of the shock absorber, which is mainly used to absorb the shock and impact force generated during the running of the vehicle, so as to reduce the sense of turbulence of the vehicle and improve the smoothness of the ride. It is usually made of steel or aluminum alloy, has high strength and high wear resistance, and can effectively extend the service life of shock absorbers .
Material and function of shock absorber core
The shock absorber core is usually made of carbon spring steel. From the Angle of damping material, the shock absorber is mainly divided into hydraulic and inflatable, and there is a variable damping shock absorber. The main function of the shock absorber is to suppress the shock and the impact from the road surface when the spring rebounds after absorbing the shock. When passing the uneven road surface, although the shock absorbing spring can filter the vibration of the road surface, the spring itself will also have reciprocating motion, and the shock absorber is used to inhibit the spring jumping .
Damage judgment method of shock absorber core
The main way to judge whether the shock absorber core is damaged is to check whether there is oil leakage and whether the pressure is weakened. If the shock absorber core is damaged, the vehicle will have an obvious sense of turbulence during driving, especially on bumpy sections .
The main function of the rear shock absorber core is to absorb and attenuate the shock and impact force generated during the running of the vehicle, so as to provide a smooth driving experience . Specifically, the shock absorber core effectively inhibits the rebound of the spring after absorbing the shock, reduces the vibration of the body and frame, and improves the ride comfort and comfort of the vehicle through its internal liquid flow and damping effect.
The working principle of shock absorber core
Shock absorber cores are usually made of steel or aluminum alloy and have high strength and wear resistance. It absorbs and attenuates vibration by generating damping force through the reciprocating flow of liquid in a closed container. When the vehicle is driving on an uneven road surface, the shock absorber core can respond quickly and absorb the road impact, ensuring that the vehicle can smoothly pass the bumpy road .
Shock absorber core maintenance and replacement recommendations
In order to ensure the normal operation of the shock absorber core, it is recommended to check its working status regularly. You can judge whether it is working properly by touching the temperature of the shock absorber housing, and the normally working shock absorber housing should be warm. If the shock absorber housing is found to be abnormally cool or leaking oil, the shock absorber core may need to be replaced . In addition, when replacing the shock absorber core, it is recommended to check and replace the spring and other related components at the same time to ensure the good condition of the entire suspension system .
automotive rear shock absorber core failure the main manifestations are oil leakage, abnormal sound, abnormal temperature, poor rebound effect and other symptoms. Specific performance is as follows:
Oil leakage : there is oil seepage outside the shock absorber, indicating that the internal hydraulic oil leakage, the shock absorber is basically invalid .
abnormal sound : in the bumpy road or speed bumps, the wheel makes a "gong" sound, indicating that the shock absorber vibration reduction effect is not good or ineffective .
abnormal temperature : after a period of driving in rough road conditions, a shock absorber housing is cold, indicating that the shock absorber has been damaged .
poor rebound effect : when the car stops, the body tends to be stable soon after bouncing under the spring force, indicating that the shock absorber is in good condition; If it is stopped after repeated shock for several times, it indicates that the vibration reduction effect of the shock absorber is poor .
decreased ride experience : when driving on rough roads, the body shakes significantly, reducing passenger comfort .
abnormal bounce : When passing potholes or speed bumps, the vehicle shows a more obvious bounce, and the bounce frequency is beyond the normal range .
accelerated tire wear : Shock absorber failure weakens the grip between the wheel and the road surface, resulting in increased tire wear, especially on uneven roads .
suspension system noise : abnormal noise or noise generated by the suspension system during the running of the vehicle .
Fault cause and solution
Shock absorber failure or damage : prolonged use can cause wear, aging or external impact. The solution is to check and replace the shock absorber in time to ensure driving safety and ride comfort .
seal problem : The oil seal gasket and sealing gasket are broken and damaged, resulting in oil leakage. The solution is to inspect and replace these seals .
Large clearance between piston and cylinder : or the piston connecting rod is bent, the surface and cylinder are scratched or stretched. The solution is to carefully inspect and maintain these parts .
shock absorber core failure : The method of determination includes checking for oil leakage and pressure loss. The solution is to replace the shock absorber core .
Maintenance suggestion
Check the appearance, oil level and cleanliness of the shock absorber regularly to ensure that it is working properly. If the shock absorber core fault is found, it is recommended to contact a professional automotive maintenance personnel for inspection and repair .
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