What is the significance of low compression set of rubber parts for gearbox in maintaining sealing performance?
Publish Time: 2024-12-06
During the operation of the gearbox, the quality of sealing performance is directly related to its overall performance and service life, and the low compression set of rubber parts for gearbox plays a very critical role in this process and has many important significances.First of all, the low compression set ensures that the rubber parts can still maintain good elastic recovery ability after long-term pressure. The rubber seals inside the gearbox will continue to withstand pressure from oil pressure, mechanical parts extrusion and other pressures during operation. If the rubber parts have a high compression set, after a long period of pressure, its shape will be difficult to return to its original state, and permanent deformation depressions or convexities will occur, which will cause gaps in the sealing surface and cause the gearbox oil to leak. Rubber parts with low compression set characteristics can quickly and relatively completely return to their original state once the pressure is released, even under long-term pressure, and fit the sealing surface tightly, effectively preventing oil leakage, ensuring the stability of the oil pressure inside the gearbox, and maintaining normal lubrication and transmission functions.Secondly, this characteristic helps to improve the sealing durability of rubber parts. During the entire service life of the gearbox, rubber seals will experience countless pressure cycles of loading and unloading. Rubber parts with low compression permanent deformation can always maintain reliable sealing performance during long-term repeated pressure changes, and will not cause sealing failure due to the gradual accumulation of residual deformation after each pressure. For example, in the daily driving use of the automobile gearbox, frequent gear shifting operations will cause the rubber seals to continuously withstand different degrees of pressure shock. Rubber parts with low compression permanent deformation can continuously provide stable sealing protection for the gearbox during the long process of hundreds of thousands of kilometers of vehicle driving, reduce the number of fault repairs caused by sealing problems, reduce the cost of use and improve the reliability of the vehicle.Furthermore, the low compression permanent deformation characteristics of rubber parts for gearbox also have a positive effect on maintaining the cleanliness of the gearbox. Good sealing performance can prevent external dust, impurities and other pollutants from entering the gearbox, and prevent foreign matter such as metal debris generated by internal wear from spreading to other parts, thereby ensuring the cleanliness of the gearbox oil, reducing the wear and corrosion of parts caused by impurities, and further extending the overall life of the gearbox, so that the gearbox can operate efficiently in a relatively pure and stable working environment.In addition, from the perspective of overall performance optimization of the gearbox, the stable sealing performance is due to the low compression permanent deformation characteristics of the rubber parts, which helps to reduce internal energy loss. Because good sealing can prevent oil leakage and oil pressure fluctuations, the power transmission of the gearbox is more efficient, the unnecessary loss of energy in the sealing link is reduced, the fuel economy and the smoothness of power output are improved, and a solid foundation is laid for the overall performance of the vehicle.In summary, the low compression permanent deformation characteristics of rubber parts for gearbox are of great significance to maintaining sealing performance. It is one of the key factors to ensure the stable, reliable and efficient operation of the gearbox, and it has a value that cannot be ignored in the field of automobiles and various mechanical transmissions.
