基于CAE 的变速器齿毂断裂原因分析及解决方案

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中图分类号：TQ050.4 文献标志码：A文章编号：1001-5922（2025）06-0105-03

Abstract：In regulatory certification tests，transmission tests based on calculated or measured load spectra are im⁃ portant tests for evaluating whether the performance of gear shafts and synchronizers is qualified. The synchronizer is one of the most critical parts of the transmission，which is responsible for transmitting torque and eliminating the speed difference during the shift process. Aiming at the fracture failure phenomenon of a certain type of gearbox gear hub in the test process，with the help of CAE analysis and simulation software，this paper expounds from the perspective of gear hub gear sleeve，which provides a basis for the failure cause analysis and scheme optimization. The results show that both the two schemes of optimizing the gear hub material and thinning the gear hub tooth sur⁃ face，the performance of the transmission gear hub can be satisfied，and the gear shifting and torque transmission can be realized smoothly.

Key words：gearbox；synchronizer gear hub；durability；CAE analysis；tooth sleeve

在汽车变速器中，齿毂是同步器的主要零件[1]，使转速不等的齿轮在实现同步之后再相互啮合[2]。（剩余4158字）