偏心误差对分扭-并车齿轮传动系统均载性能的影响  

Influence of Eccentricity Errors on Load Sharing Performance of the Split Torque and the Power Confluence Gear Transmission System

作　　者：张多丽 周建星[1] 王海伟[2] 崔权维[1] 董宁 费翔 Zhang Duoli;Zhou Jianxing;Wang Haiwei;Cui Quanwei;Dong Ning;Fei Xiang(School of Mechanical Engineering,Xinjiang University,Urumqi 830017,China;School of Mechanical Engineering,Northwestern Polytechnical University,Xi´an 710072,China)

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830017 [2]西北工业大学机电学院,陕西西安710072

出　　处：《机械传动》2024年第11期16-23,共8页Journal of Mechanical Transmission

基　　金：新疆维吾尔自治区重点研发项目(2022B01017-1);昌吉州科技计划项目(2023Z02);新疆维吾尔自治区科技发展计划项目(2022LQ03015)。

摘　　要：为研究分扭-并车齿轮传动系统中不同级齿轮偏心误差对各支路均载性能的影响,对其不均载成因进行了分析。采用集中质量法建立含偏心误差的弯扭耦合动力学模型,利用Newmark-β法求解动力学方程,计算了各分支均载系数,对比了有无偏心误差时动态均载系数的变化;通过两组数值仿真,探究了不同级齿轮偏心误差对各支路均载系数的影响情况。结果表明,齿轮偏心误差加剧了系统各支路均载系数的幅值波动,且闭环布置的分扭-并车齿轮传动系统右支路均载系数小于左支路;各级齿轮偏心误差单独作用时,偏心误差对含误差的齿轮级所在支路均载性能影响更大;各级偏心误差共同作用时,传动系统并车级均载性能的稳定性劣于分扭级,表明动力传递过程中误差具有累积效应。研究结果为选择性减小不同级齿轮偏心误差、有效改善传动系统各支路的均载性能提供了依据。In order to study the influence of gear eccentricity errors on the load sharing performance of each branch of the split torque and power confluence gear transmission system,the load sharing mechanism of the transmission system was analyzed.A coupled bent-torsional dynamics model with eccentricity errors was established by the lumped mass method,and the dynamic equation was solved by the Newmark-β method.The load sharing coefficient of each branch was calculated,and the variation of dynamic load sharing coefficients with or without eccentricity error was compared.Through two sets of numerical simulation,the influence of eccentricity errors of different gears on load sharing coefficients of each branch was investigated.The results show that the eccentricity error of gears intensifies the amplitude fluctuation of load sharing coefficient of each branch of the system,and the load sharing coefficient of the right branch is smaller than that of the left branch in the closedloop arrangement.When each level of gear eccentricity error acts independently,the influence of gear eccentricity error on the load sharing coefficient of the branch where the gear is located is more obvious.When all levels of gear eccentricity errors act together,the load sharing performance of the power confluence stage is worse than that of the split torque stage,which indicates that the errors have the cumulative effect in the process of power transmission.It provides reference for the optimization of load sharing performance of the transmission system.

关 键 词：均载系数 集中质量法 偏心误差 动态响应 分扭-并车齿轮传动 

分 类 号：TH132.41[机械工程—机械制造及自动化]