电动执行机构的行星齿轮传动机构设计  

Design of Planetary Gear Transmission Mechanism for Electric Actuator

作　　者：聂建军[1] 禹英杰 鄢鸿桢 Nie Jianjun;Yu Yingjie;Yan Hongzhen(School of Mechanical and Electronical Engineering,Zhongyuan University of Technology,Zhengzhou 450007,China;Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,China)

机构地区：[1]中原工学院机电学院,河南郑州450007 [2]郑州机械研究所有限公司,河南郑州450001

出　　处：《机械传动》2020年第11期73-79,共7页Journal of Mechanical Transmission

基　　金：河南省科技攻关计划项目(132102210196);河南省产学研合作项目(142107000038)。

摘　　要：为了满足安装空间紧张的工业自动化场所的需要,以NGWN(Ⅱ)型(3Z)行星齿轮机构为主传动机构并结合定轴轮系齿轮传动和蜗轮蜗杆机构组成混合传动方案,开发了结构紧凑的小型电动执行机构。为了加快设计进程,减少人工计算工作量,以体积和效率为设计目标,建立了行星齿轮机构的多目标优化数学模型并进行了求解,得到了电动执行机构的设计参数;在此基础上,建立了电动执行机构的三维模型,并最终完成了该电动执行机构的生产制造。结果表明,对模数较小的NGWN(Ⅱ)型(3Z)行星齿轮机构,以各齿轮副或其中两个齿轮副的标准中心距的平均值作为公用实际中心距,计算出的各齿轮变位系数更为合理,设计结果也更加符合实际要求。In order to meet the needs of industrial automation places with narrow installation space,a compact electric actuator is developed by taking NGWN(Ⅱ) type(3Z) planetary gear mechanism as the main transmission mechanism and combining the fixed axis gear train and worm gear drive.In order to shorten the design cycle and reduce the workload of manual calculation,a multi-objective optimization mathematical model of planetary gear mechanism is established and solved with the volume and efficiency as design objectives,and the design parameters of electric actuator are obtained.On this basis,the three-dimensional model of the electric actuator is established,and finally the manufacturing of the electric actuator is completed.The results show that,for the NGWN(Ⅱ) type(3Z) planetary gear mechanism with small modulus,when the average value of the reference center distance of all gear pairs or that of two of the gear pairs is taken as the common actual center distance,the calculated profile shift coefficient of each involute gear is more reasonable,and the design result is more in line with the actual requirements.

关 键 词：电动执行机构 渐开线行星齿轮 变位系数 优化设计 多目标优化数学模型 

分 类 号：TH132.425[机械工程—机械制造及自动化]