高速行星减速箱膜盘式太阳轮轴行波振动及试验分析  

Traveling Wave Vibration and Experimental Analysis of the Diaphragm Disc Sungear Shaft of High-speed Planetary Gearbox

作　　者：王晓鹏 刘世军 Wang Xiaopeng;Liu Shijun(Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450052,China)

机构地区：[1]郑州机械研究所有限公司,河南郑州450052

出　　处：《机械传动》2020年第4期107-112,共6页Journal of Mechanical Transmission

摘　　要：建立高速行星减速箱膜盘式太阳轮轴仿真分析模型,依据太阳轮轴浮动结构设计原理,拟定自由-自由、简支-轴向、简支-固定3种边界工况分析条件,研究其固有频率和行波振动特性,绘制相应的阵型图和Campbell图,并搭建齿轮箱试验台架进行了试验分析。结果显示,夹带有轮齿变形的太阳轮轴主振型与啮合1倍频产生共振时激励力作用力幅最大,2倍频和3倍频次之。轮齿振动形式主要为扭转振动、行波振动和弯曲振动;同时,以膜盘或筒轴为主振型的行波振动与轴高倍频的共振点范畴较广,倍频越大其共振作用影响效果越甚微。试验结果显示,转速增加至工作转速过程中,振动值发生较明显波动后又迅速下降至稳定,表明激振力未能引起系统振动的扩展,对系统稳定性的影响甚小,反映了太阳轮轴几何设计的合理性及适用性。The simulation model of the diaphragm disc sun-gear shaft of high-speed planetary gearbox is established.Based on the design principle of the floating structure of sun-gear shaft in planetary gearbox,three conditions including free-free,simple support-axial and simple support-fixed support are drawn up.The natural frequency and traveling wave vibration of sun-gear shaft were investigated,and the corresponding diagrams of mode of vibration and Campbell figure are drawn later.A gearbox test bench is built for experimental analysis.The result shows that when the main mode of sun-gear shaft with deformation of gear teeth resonates with onefold frequency,the excitation force has largest amplitude,the two and three times followed.The vibration forms of teeth are torsional vibration,traveling wave vibration and bending vibration.A wide range of resonance points is produced between diaphragm or barrel shaft and multiple frequency of shaft.The resonance response is smaller by the greater multiple frequency of shaft.The experimental shows that during the process of increasing the speed from zero to working speed,the vibration value fluctuates significantly and then decreases to stable quickly,which indicates that the vibration of system is not expanded by exciting force and the influence on system stability is smaller.The geometric design of sun-gear shaft has a certain rationality and applicability.

关 键 词：太阳轮轴 膜盘 行波振动 模态分析 Campbell图 试验分析 

分 类 号：TH132.46[机械工程—机械制造及自动化]