What are the rubber bushings in the car suspension for?
新闻概况： In fact, most of the rubber parts on automobiles are inseparable from the original intention of "buffering vibration isolation". For example, the invention of tires - tires were first used on bicycles. The first bicycles had no tires, and the road conditions in that era were very poor, either unpaved roads or stone roads, on which bicycles were driven. It is very uncomfortable for the cyclist, and it also limits the speed of the ride
The concept of valve oil seal
The valve oil seal can prevent oil from entering the intake and exhaust pipes, causing oil loss, preventing the leakage of gasoline and air mixture and exhaust gas, and preventing engine oil from entering the combustion chamber. Valve oil seal is one of the important parts of the engine valve group. It is in contact with gasoline and oil at high temperature. Therefore, it is necessary to use materials with excellent heat resistance and oil resistance, generally made of fluororubber.
Key points of use of seals
The inner surface of the hydraulic cylinder is usually processed by rolling, which not only improves the surface roughness, but also makes the surface hardened by cold work, which is beneficial to prolong the service life of the sealing ring. In addition, the pressure used, the length and type of the sliding surface also have a great influence on the service life. Therefore, the "regular inspection" time should be decided according to these conditions.
The reasonable use of high temperature oil seals needs to pay attention to these matters!
Special care must be taken to prevent dirt from infiltrating the oil seal. Oil seals are classified according to the rotational speed of the shaft. Oil seals can be divided into low-speed oil seals (less than 6m/s) and high-speed oil seals (greater than 6m/s). According to the pressure level that the oil seal can withstand, it can be divided into normal pressure type oil seal and pressure type oil seal. According to the structure and sealing principle of the oil seal, it can be divided into standard oil seal and dynamic return oil seal. In addition, according to the material classification of the oil seal components, it can be divided into a skeleton type oil seal and a skeleton type oil seal, a spring type oil seal and a springless type oil seal.
The role of various sealing rings
The V-shaped seal is an axially acting elastic rubber seal used as a pressureless seal for the shaft. The sealing lip has good mobility and adaptability, can compensate for large tolerances and angular deviations, can prevent the internal grease or oil from leaking out, and can also prevent the intrusion of external splashing water or dust.
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