• CN：11-2187/TH
• ISSN：0577-6686

• 机构学及机器人 •

### 基于螺旋非圆齿轮变速装置设计研究

1. 1. 北京精密机电控制设备研究所 北京 100076;
2. 首都航天机械公司 北京 100076
• 收稿日期:2016-11-15 修回日期:2017-06-07 出版日期:2017-12-05 发布日期:2017-12-05
• 通讯作者: 宋洪舟(通信作者),男,1988年出生,博士,工程师。主要研究方向为伺服技术、机械传动。E-mail:shz1988@foxmail.com
• 基金资助:
国防基础科研计划资助项目（JCKY2016203C015）。

### Design and Research of Variable Speed Device Based on Spiral Noncircular Gear

SONG Hongzhou1, ZHENG Jigui1, SHI Wei1, LIU Wei1, YAO Ran2

1. 1. Beijing Research Institute of Precise Mechatronic Controls, Beijing 100076;
2. Capital Aerospace Manufacturing Corporation, Beijing 100076
• Received:2016-11-15 Revised:2017-06-07 Online:2017-12-05 Published:2017-12-05

Abstract: In order to increase the shifting process capacity of transmission and to solve the problem of calorific or burn down of the friction plate, it proposes to make use of non-circular gear transmission instead of friction drive shifting process structure. Formation principle of involute beveloid tooth flank is studied. By increasing conjugate rack circumference pure rolling and axial motion constraint condition, a mathematical model of spiral non-circular gear enveloping machining is established. Each tooth flank vector radius of conjugate racks is described, and the spiral non-circular tooth flank equation is deduced. The numerical example is used to verify the accuracy of mathematical model and the relationship between the geometrical characteristics of non-circular tooth and the axial movement velocity are analyzed. The results show that the conjugate tooth flank is still in line contact. Through the detailed design and dynamic simulation of the bevel gear, the results show that the angular velocity curve is relatively steady and with slightly impact. The establishment of bevel gears based on electromechanical detection scheme and automatic speed changing devices test platform make features of gear automatic shift come true and furthermore verify basic gear meshing principle of spiral non-circular gears. The design and rebuild scheme of bevel gears train have certain degree of feasibility.