刚度变化对行星轮系均载特性的影响分析  

Analysis of Influence of Stiffness Variation on Uniform Load Characteristics of the Planetary Gear Trains

作　　者：李凯阳 李爱国 林锐怡 师陆冰 颜世铛 刘忠明 Li Kaiyang;Li Aiguo;Lin Ruiyi;Shi Lubing;Yan Shidang;Liu Zhongming(Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,China)

机构地区：[1]郑州机械研究所有限公司,河南郑州450001

出　　处：《机械传动》2024年第2期33-41,共9页Journal of Mechanical Transmission

基　　金：国家重点研发计划项目(2020YFB2007002)。

摘　　要：建立直齿圆柱齿轮行星齿轮传动系统的三维模型,并利用动力学仿真软件构建虚拟样机模型;通过动力学分析,验证了虚拟样机仿真模型的准确性和可行性。研究表明,传动系统中各零部件的支承刚度对均载特性均有明显影响,行星轮的支承刚度变化对均载特性的影响最为敏感;传动系统均载特性对太阳轮柔性支承刚度变化并不敏感,但对行星轮柔性支承刚度变化敏感性较强,均载系数有明显变化;轮齿啮合刚度变化对传动系统均载特性的影响具有独立性,同时减小内、外啮合刚度比单独降低啮合刚度的均载效果更为明显。In this study,a three-dimensional model of the planetary gear train with straight cylindrical gears is established,and a virtual prototype model is constructed by using dynamics simulation software.Through the dynamics analysis,the accuracy and feasibility of the virtual prototype simulation model are veri⁃fied.The study shows that the supporting stiffness of each component in the transmission system has a signifi⁃cant effect on the uniform load characteristics,and the change of the supporting stiffness of the planetary gear has the most sensitive effect on the uniform load characteristics.The uniform load characteristics of the transmis⁃sion system is not sensitive to the change of the flexible supporting stiffness of the sun gear,but it is more sensi⁃tive to the change of the flexible supporting stiffness of the planetary gear,and the uniform load coefficient has obvious changes.The effect of gear tooth meshing stiffness changes on the uniform load characteristics of the transmission system is independent,simultaneously reducing the internal and external meshing stiffness has a more obvious uniform load effect than reducing the meshing stiffness alone.

关 键 词：行星轮系 支承刚度 柔性支撑 啮合刚度 均载系数 均载特性 

分 类 号：TH132.41[机械工程—机械制造及自动化]