The analysis and optimization of the tooth profile modifications on push-rod's oscillatory transmission with a needle gear

被引：0
|
作者：
Fei Y. [1 ,2 ]
Zhang S. [1 ]
Yao J. [1 ]
Xie C. [1 ]
Li H. [1 ]
机构：
[1] School of Mechanical Engineering, Sichuan University, Chengdu
[2] Sichuan Provincial Machinery Design & Research Institute, Chengdu
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2020年 / 41卷 / 03期
关键词：
Angle modification; Backlash; Combined modification; Isometric modification; Move modification; Optimization; Push-rod's oscillatory transmission with a needle gear; Shape of tooth profile modification;
D O I：
10.11990/jheu.201811085
中图分类号：
学科分类号：
摘要：
In order to prevent the tooth shape interference caused by the error in the actual machining and assembly process and ensure the meshing pair obtain a suitable flank clearance to improve transmission performance, it is necessary to perform the tooth profile modifications on push-rod's oscillatory transmission with a needle gear. The characteristics of the modified tooth profile obtained by the method of isometric modification, move modification, angle modification and others are analyzed. It is proposed that the combination of 'isometric modification + move modification' is suitable for the tooth profile modifications on push-rod's oscillatory transmission with a needle gear. The modified tooth profile is evaluated with the size of the backlash, and the mathematical model of the backlash is established. The backlash of all combinations involved in the 'isometric modification + move modification' is analyzed, deriving that the best combination of tooth profile modifications for the push-rod's oscillatory transmission with a needle gear is 'negative isometric modification + positive move modification'. The optimization model of the optimal tooth profile modification with the minimum backlash as the objective function is established. The practicality and feasibility of the optimization model is shown by an example. © 2020, Editorial Department of Journal of HEU. All right reserved.
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页码：448 / 454
页数：6
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