谐波减速器改性凸轮波发生器的设计

韩金林; 李波; 李朋飞; 邓宏碧; 张烨恒; 吴俊峰; 陈芳

doi:10.13433/j.cnki.1003-8728.20200389

谐波减速器改性凸轮波发生器的设计

doi: 10.13433/j.cnki.1003-8728.20200389

1.
武汉理工大学智能制造与控制研究所, 武汉 430063
2.
湖北科峰智能传动股份有限公司, 湖北黄冈 438000

基金项目:

湖北省技术创新专项(重大项目) 2019AAA068

详细信息

作者简介:
韩金林(1996-), 硕士研究生, 研究方向为谐波减速器设计与动力特性研究, 15377074197@163.com

通讯作者:
李波, 教授, 博士, whlibo163@163.com

中图分类号: TH132.43
计量
- 文章访问数: 167
- HTML全文浏览量: 59
- PDF下载量: 22
- 被引次数: 0
出版历程
- 收稿日期: 2020-08-06
- 刊出日期: 2022-06-25

Design of Modified Cam Wave Generator for Harmonic Drive

1.
Institute of Intelligent Manufacturing and Control, Wuhan University of Technology, Wuhan 430063, China
2.
Hubei Kofon Transmission Equipment Co., Ltd., Huanggang 438000, Hubei, China

摘要

摘要: 波发生器是柔轮受力特性研究的关键。为能够提高柔轮的寿命, 提出了一种新的改性凸轮波发生器作用于柔轮。改性凸轮轮廓由两段偏心圆弧和两段椭圆弧连接组成, 并将偏心圆弧与椭圆弧平滑过渡、柔轮内表面载荷分布均匀、啮合处啮合性能良好等限制条件转化为设计改性凸轮的约束条件。通过计算实例分析了不同参数的改性凸轮作用下的柔轮内周边曲线曲率变化, 并据此选取了改性凸轮波发生器。有限元仿真和试验结果表明, 与传统的椭圆凸轮波发生器作用的谐波减速器相比, 采用改性凸轮作用的谐波减速器柔轮的齿圈两端端的应力明显降低, 应力的分布也更加均匀, 传动的精度更高, 寿命更长。
- 谐波减速器 /
- 改性凸轮波发生器 /
- 柔轮应力 /
- 疲劳寿命
Abstract: The wave generator is the key to study the force characteristics of the flexspline. In order to increase the life of the flexspline, a new cam wave generator is proposed to act on the flexspline. The profile of the modified cam is composed of two eccentric arcs and two elliptical arcs connected, and the restriction conditions such as the smooth transition between the eccentric arc and the elliptical arc, the uniform load distribution on the inner surface of the flexspline, and the good meshing performance at the meshing point are transformed into design modification from the constraints of the cam. Through calculation examples, the curvature changes of the inner peripheral curves of the flexspline under the action of modified cams with different parameters are analyzed, and the modified cam wave generator is selected accordingly. The finite element simulation and testing results show that, comparing with the harmonic reducer acted by the traditional elliptical cam wave generator, the stress at both ends of the ring gear of the flexspline of the harmonic reducer with the modified cam action is significantly reduced, and the stress distribution It is also more uniform, with higher transmission accuracy and longer life.
- harmonic reducer /
- modified cam wave generator /
- flexspline stress /
- fatigue life

HTML全文

图 1 改性凸轮轮廓曲线

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图 2 四分之一改性凸轮曲线

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图 3 柔轮中性层形变后的曲率差

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图 4 约束条件设置后谐波减速器状态图

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图 5 柔轮的周向应力图

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图 6 柔轮齿圈两端应力变化

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图 7 柔轮径向位移变化

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图 8 谐波减速器传动精度与寿命试验平台

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图 9 不同凸轮凸轮作用谐波减速器的回程误差曲线

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表 1 不同改性凸轮的设计参数

数组	a	b	c	R	e
1	24.9	17.53	11.60	29.31	0.7
2	24.9	16.8	12.33	29.21	0.8
3	24.9	17.7	11.43	29.21	0.8
4	24.9	17.6	11.53	29.31	0.7
5	24.9	17.53	11.60	29.41	0.6

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参考文献(18)

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