Research on temperature field and friction wear of friction partner of composite synchronizer ring

In order to ameliorate the changes in friction material properties caused by the local high temperatures and contact wear generated by the synchronizer friction pair during the gearshift process. A composite synchronous ring using carbon fiber composite material as friction material is proposed. The temperature field characteristics of the working surface of the friction sub-side of the composite synchronous ring and the influence of different parameters on the friction and wear of the composite synchronous ring are investigated. Combined with the actual structure and working conditions of the composite synchronous ring as well as heat transfer and abrasive wear fractal theory. The finite element analysis model and contact wear mathematical model of the friction vice of the composite synchronous ring are established, and the finite element simulation analysis and numerical simulation analysis are carried out. The research results show that the performance of the double-layer carbon fiber synchronizer ring is better than that of the single-layer carbon fiber synchronizer ring, and the temperature of the friction surface of the double-layer composite synchronizer ring is the highest temperature of 113.4 degrees C, and the highest temperature rise is 91.4 degrees C. The larger the shift force is during the synchronizer process, the deeper the wear rate of the friction surface of the composite synchronous ring is; the appropriate increase of the friction cone angle of the composite synchronous ring can reduce the wear of the composite synchronous ring.