电驱动桥减速器传动齿轮参数优化设计  

Optimization Design of Transmission Gear Parameters for Electric Drive Axle Reducers

作　　者：吴瑞婷[1] 丁洁[1] Wu Ruiting;Ding Jie

机构地区：[1]昆明云内动力股份有限公司技术中心,云南省昆明市650000

出　　处：《工程机械》2024年第9期128-134,I0022,共8页Construction Machinery and Equipment

基　　金：云南省省市一体化专项“面向双碳目标的自主可控智能动力系统关键技术研究”(202202AC080004)。

摘　　要：齿轮作为减速器传动结构中的关键零部件,齿轮参数设计优劣影响着整个减速器的性能、寿命、舒适性等指标。采用S-N曲线假定法设定零部件的损伤值,并将实际路谱转换为当量载荷谱后,通过Romax软件利用全因子试验设计研究法进行齿轮宏观参数的设计选择,再通过软件计算出齿间载荷和齿向载荷分布状况对齿面接触应力分布的影响后,进行齿轮微观修形优化,改变齿面接触,改善齿面应力接触点,并减少齿轮副的传递误差,从而实现提升减速器传动性能、减小噪声和使用寿命的效果。通过对齿轮参数从宏观参数调整及微观修形方面进行优化设计及对比,在理论上使强度安全系数提升30%以上,传递误差减少76%,最终通过噪声测试,验证优化方案在振动方面的优化效果,测试结论证实该优化方案对齿轮噪声有明显的改善。Gear is a key component in the transmission structure of a reducer,and gear parameter design affects the performance,service life,comfort and other indicators of the entire reducer.The S-N curve assumption method is used to set the damage value of the component,and after converting the actual road spectrum into the equivalent load spectrum,the macro parameters of the gear are designed and selected by software romax using the full factorial experimental design research method.Then,the influence of the distribution of inter-tooth load and tooth-lead load on the distribution of tooth contact stress is calculated through software,and micro modification and optimization of the gear are carried out to change the tooth contact,improve the tooth stress contact point and reduce the transmission errors of the gear pair,so as to achieve the effects of enhancing reducer transmission performance,reducing noise and improving service life.Through optimization design and comparison of gear parameters from aspects of macro parameter adjustment and micro modification,theoretically,the strength safety factor is increased by over 30%,and the transmission errors are decreased by 76%.Ultimately,through noise tests,the optimization effect of the optimization plan on vibration is verified,and the test conclusions confirm that the optimization plan has a significant improvement on the gear noise.

关 键 词：齿轮 接触斑 强度 微观修形 

分 类 号：TH132.41[机械工程—机械制造及自动化]