啮合误差及相位角对复合轮系均载特性的影响分析  

Analysis of the Influence of Meshing Error and Phase Angle on Load Sharing Characteristic of Compound Planetary Gear Train

作　　者：周璐[1] 巫世晶[1] 李景[1] 王晓笋[1] 朱伟林[1] 

机构地区：[1]武汉大学动力与机械学院,湖北武汉430072

出　　处：《机械传动》2016年第3期1-6,共6页Journal of Mechanical Transmission

基　　金：国家自然科学基金(51375350);中国北方车辆研究所车辆传动重点实验室资助项目(20144614)

摘　　要：以复合行星轮系为研究对象,建立了含时变啮合刚度、齿侧间隙和传递误差的复合行星传动系统平移-扭转耦合非线性动力学模型,并分析了安装误差和偏心误差及其相位角对系统均载特性的影响。结果表明,中心构件的安装误差和偏心误差对各行星轮产生均等的周期性影响;行星轮的安装误差会导致行星轮出现持续偏载,但是其偏心误差会使均载系数出现周期性变化;当行星轮的安装误差相位角朝同等方向以及分布在相啮合的行星轮对上时,均载系数较小;偏心误差分布在齿数相差较大的齿轮上时,系统均载性能较好;行星轮误差对称分布能有效降低误差对均载系数的影响。Taking the compound planetary gear train as research object,a nonlinear translation- torsion coupled dynamics model is established for compound planetary gear train considering the time- varying meshing stiffness,gear backlash and synthetic meshing errors,and the impact of installation error,eccentric error and the phase angle of them on the load sharing characteristic is analyzed. The results show that the installation errors and eccentric errors of central member will make equal periodic changes for planetary gear,and the installation error of planetary gear will make sustained partial load,while the eccentric error of it makes periodic change for load sharing coefficient. When the installation error phase angle of planetary gear is oriented to the same direction or distributed ons the meshed planetary gear pair,the load sharing coefficient is smaller. The load sharing characteristic is better when eccentric error is distributed on gears with larger difference number of teeth and the error symmetric distribution of planetary gears will gradually reduce the effect of error to load sharing coefficient.

关 键 词：复合行星轮系 均载特性 安装误差 偏心误差 误差相位角 

分 类 号：TH132.41[机械工程—机械制造及自动化]