[Abstract]: Hualong.com at 6:30 on June 21th (Reporter Yi Yongjun) The reporter learned from the Chongqing Municipal Science and Technology Commission today (30th) that with the support of the High-tech Department of the Municipal Science and Technology Commission, Chongqing Jingjiang Automobile Co., Ltd. The new technology of automobile half-axle automation undertaken by the axle automation process engineering technology research center has passed the acceptance of the expert group and has been put into application, which can increase the surface strength of the automobile half-axle. The new product developed can reach 30 million times without breaking, and the fatigue strength is the national standard. more than 110 times.According to the relevant person in charge of the Chongqing Municipal Science and Technology Commission, the car half shaft is also called the drive axle, which is a solid shaft that transmits torque between the differential and the drive wheel. Its inner end generally passes through...
Hualong.com at 6:30 on June 21 (Reporter Yi Yongjun) The reporter learned from the Chongqing Municipal Science and Technology Commission today (30th) that with the support of the High-tech Department of the Municipal Science and Technology Commission, Chongqing Jingjiang Automobile Half-axle Automation Process Engineering The new technology of automobile half-shaft automation undertaken by the Technology Research Center has passed the acceptance of the expert group and has been put into application, which can increase the surface strength of the automobile half-shaft. The new products developed can reach 30 million times without breaking, and the fatigue strength is more than 110 times the national standard. .
According to the relevant person in charge of the Chongqing Municipal Science and Technology Commission, the automobile half shaft is also called the drive axle, which is a solid shaft that transmits torque between the differential and the drive wheel. connect.The half-shafts commonly used in modern automobiles have two types, full-floating and semi-floating, according to their different bearing types.The full-floating axle shaft only transmits torque and does not bear any reaction force and bending moment, so it is widely used in various types of vehicles.The full-floating axle shaft is easy to disassemble and assemble, just unscrew the bolt on the flange of the axle shaft to pull out the axle shaft, and the wheel and axle housing can still support the car, which brings convenience to the maintenance of the car.
It is reported that the new technology of automobile semi-axle automation undertaken by Chongqing Jingjiang Automobile Semi-axle Automation Process Engineering Technology Research Center includes 26 invention patents and 64 utility model patents.Among them, both the semi-floating half-shaft forging technology and the full-floating half-shaft forging technology achieve good forging metal streamline, good forging quality and small machining allowance.The adopted semi-shaft surface strengthening technology adopts sandblasting process, etc., to remove product surface defects, improve cleanliness, strengthen the surface, and increase the surface strength of the semi-shaft.If the project implements the newly developed M3 product, the national standard requires a fatigue strength of 30 times, but it has actually reached 110 million times without breaking.
The semi-floating half shaft not only transmits torque but also bears all reaction forces and bending moments.Its supporting structure is simple and low in cost, so it is widely used in all kinds of cars with small reaction force and bending moment.However, this kind of half-shaft support is troublesome to dismantle, and if the half-shaft breaks during driving, it is easy to cause the danger of wheels flying off.