摘要
为研究谐波齿轮各种制造误差对柔轮齿面应力与磨损情况的影响,根据响应面思想,设计实验,采用四因素响应面模型,分析柔轮跨距值(M值)偏差、刚轮M值偏差、波发生器长半轴偏差及短半轴偏差,分别建立相应谐波齿轮模型,并进行有限元仿真分析.实验结果表明,凸轮长半轴偏差对柔轮齿上应力敏感度最大,柔轮、刚轮M值偏差次之,凸轮短半轴偏差敏感度最小;针对在制造加工时可能出现的刚轮与柔轮齿廓不同偏差情况提出4种误差补偿方案,即当柔轮、刚轮M值均为负偏差或分别为正偏差、负偏差时减小凸轮长半轴,当柔轮、刚轮M值均为正偏差或分别为负偏差、正偏差时增大凸轮长半轴,以此改善啮合情况并提高精度保持性.
The experiment was designed based on the response surface theory to study the influence about various manufacturing errors of harmonic gears on the tooth surface stress and wear of the flexspline. A four-factor response surface model was adopted, which includes the span value(M-value) deviation of the flexspine, the M-value deviation of the circular spline, the long half axis deviation, and the short half axis deviation of the wave generator.Then corresponding harmonic gear models were established for finite element simulation analysis, respectively. The experimental results show that the cam long half axis deviation is most sensitive to the stress on the flexspline tooth,the M-value deviation of the flexspline and the M-value deviation of the circular spline less, and the cam short axis deviation sensitivity the least. Four kinds of error compensation schemes were proposed for different deviations of the gears of the circular spline and the flexspline, which may occur during the manufacturing process, to improve the meshing condition and the accuracy retention. That is, the long half axis of the cam can be reduced when the Mvalues of the flexspline and the circular spline are both negative deviation, or positive and negative deviation respectively;the long half axis of the cam can be increased when the M-values of the flexspline and the circular spline are both positive deviation, or negative and positive deviation respectively.
作者
陈茜
李俊阳
王家序
蒋倩倩
唐挺
CHEN Qian;LI Jun-yang;WANG Jia-xu;JIANG Qian-qian;TANG Ting(State key Laboratory of Mechanical Transmissions,Chongqing University,Chongqing 400044,China;School of Aeronautics and Astronautics,Sichuan University,Chengdu 610065,China)
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2019年第12期2289-2297,共9页
Journal of Zhejiang University：Engineering Science
基金
国家重点研发计划资助项目（2017YFB1300600）
重庆市重点产业共性关键技术创新专项重大研发资助项目（cstc2017zdcyzdzxX0001）
重庆市基础与前沿研究计划资助项目（cstc2016jcyiA0511)
关键词
谐波齿轮传动
双圆弧齿廓
制造误差
有限元
响应面法
harmonic gear transmission
double-circular-arc tooth profile
manufacturing error
finite element
response surface method
