湖南大学学报（自然科学版）2016，Vol.43Issue(2)：56-63,8.
公切线式双圆弧齿廓谐波齿轮传动设计
Design of Double-Circular-Arc and Common Tangent Tooth Profile of Harmonic Drive
摘要
Abstract
The tooth profile has significant effect on the engagement performance of harmonic drive (HD).In order to improve the engagement quality of HD,double-circular-arc and common tangent tooth profile (DCTP)as the tooth profile of flexspline (FS)were used,the conjugate existent domain (CED) and the conjugate tooth profile were established in Modified Kinematic Method,and the Least-squares fit-ting approach was adopted to fit it.The backlash,contact ratio,assembly state and relative movement trail were calculated to analyze the meshing performance of HD with a double-circular-arc and common tan-gent tooth profile.The results have shown that the tooth profile of the FS and the circular spline (CS) used with the DCTP remain continuous engagement,and the engagement point is changed continuously. Moreover,the double-engagement phenomenon is found,the theory conjugate arc length is 109.3mm,and the contact ratio reaches 69.03;compared with the harmonic drive with traditional involute tooth profile, the high engagement performance of harmonic drive can be obtained with the double-circular-arc and com-mon tangent tooth profile.What's more,preferably selecting the coefficient of radial displacement is an im-portant way to eliminate the interference of HD.关键词
谐波传动/双圆弧齿廓/改进运动学/运动特性Key words
harmonic drive/double-circular-arc tooth profile/modified kinematic method/kinematics character分类
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王家序,周祥祥,李俊阳,肖科,李奇..公切线式双圆弧齿廓谐波齿轮传动设计[J].湖南大学学报（自然科学版）,2016,43(2):56-63,8.基金项目
国家自然科学基金资助项目（51435001，51375506），National Natural Science Foundation of China（51435001，51375506）；国家高技术研究发展计划（863计划）资助项目（2015AA043001）；高等学校博士学科点专项科研基金优先发展领域资助项目 （）
