Design and Analysis of Multi-branch Non-circular Gear Continuously Variable Transmission Mechanism

被引：0
|
作者：
Xing Q. [1 ,2 ]
Lin C. [1 ]
Yu Y. [1 ]
Hu Y. [1 ]
机构：
[1] State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing
[2] China North Vehicle Research Institute, Beijing
来源：
Binggong Xuebao/Acta Armamentarii | 2021年 / 42卷 / 12期
关键词：
Continuously variable transmission; Differential mechanism; Non-circular gear; Simulation and transmission experiment;
D O I：
10.3969/j.issn.1000-1093.2021.12.002
中图分类号：
学科分类号：
摘要：
Continuously variable transmision is an important component of vehicle transmision system. A new type of multi-branch non-circular gear continuously variable transmission mechanism is proposed based on the transmission characteristics of non-circular gear. The continuously variable transmission is realized by the combination of non-circular gear pair, differential mechanism and transmission selection mechanism, and the final transmission ratio depends on the phase angle between two pairs of non-circular gears. The transmission principle of multi-branch non-circular gear continuously variable transmission mechanism is analyzed. The pitch curve, tooth profile and balancing characteristics are designed for non-circular gear pair, and the tooth profile and three-dimensional solid model of non-circular gear are obtained through simulation processing. The overall transmission ratio characteristics of the mechanism are compared and analyzed in theory, simulation and experiment through the ADAMS simulation and transmission experiment, and the maximum simulated and experimental errors of overall transmission ratio are about 4.5% and 5.6%, respectively. The transmission ratio characteristics of single gear pair are compared through the non-circular gear manufacturing and transmission experiment, and the maximum simulated and experimental errors of transmission ratio of gear pair are about 3.5% and 6.3%, respectively. Considering the influences of manufacturing error, assembly error and measurement error, the simulated and transmission experimental errors are all within the reasonable error range, which verifies the correctness of the theoretical analysis method. © 2021, Editorial Board of Acta Armamentarii. All right reserved.
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页码：2543 / 2554
页数：11
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