金国光, 陈家猛, 魏展,等.从动件运动规律对凸轮机构接触碰撞运动特性影响研究[J].河南理工大学学报（自然科学版）,2021,40(6):108-116.

JIN G G, CHEN J M, WEI Z,et al.Research of influence of different follower motion laws on contact and collision motion characteristics of cam mechanisms[J].Journal of Henan Polytechnic University(Natural Science) ,2021,40(6):108-116.

从动件运动规律对凸轮机构接触碰撞运动特性影响研究

金国光1,2, 陈家猛1, 魏展1,2, 宋艳艳1, 李洋1

1.天津工业大学 机械工程学院，天津300387;2.天津工业大学 天津市现代机电装备技术重点实验室，天津 300387

摘要:为研究不同从动件运动规律对凸轮机构接触碰撞运动特性的影响，基于直动从动件凸轮机构，以4种常用的凸轮机构从动件运动规律为基础，运用二状态间隙碰撞模型，应用拉格朗日方程建立凸轮与从动件接触碰撞的凸轮机构动力学方程，进行算例计算分析，并结合ADAMS 软件进行仿真验证。结果表明，在相同条件下，简谐组合运动规律和7次多项式运动规律侵入量大于余弦和正弦运动规律，均适用于高速、中低载工况。简谐组合运动规律较相同函数连续特征值的多项式运动规律速度幅值和侵入量较小，可有效替代部分多项式运动规律场合。

关键词:从动件;凸轮机构;运动规律;接触碰撞;动力学

doi:10.16186/j.cnki.1673-9787.2020100072

基金项目:国家自然科学基金资助项目（51475330）

收稿日期:2020/10/28

修回日期:2020/12/31

出版日期:2021/11/15

Research of influence of different follower motion laws on contact and collision motion characteristics of cam mechanisms

JIN Guoguang1,2, CHEN Jiameng1, WEI Zhan1,2, SONG Yanyan1, LI Yang1

1.School of Mechanical Engineering， Tiangong University， Tianjin 300387 ， China;2.Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology， Tiangong University， Tianjin  300387 ， China

Abstract:In order to study the influence of different follower motion laws on the contact and collision motion characteristics of cam mechanism ， based on the cam mechanism with translating follower ， the dynamic equation of cam mechanism considering the contact collision between cam and follower was established by using the two state gap collision model and Lagrange equation based on four common follower motion laws. The simulation was carried out with ADAMS software. The results showed that ， under the same conditions ， the invasion amount of simple harmonic combined motion law and 7th order polynomial motion law were greater than that of cosine and sine motion law ， which were suitable for high speed ， medium and low load conditions. Compared with the polynomial motion law with the same function continuous eigenvalue ， the velocity amplitude and invasion a-mount of the simple harmonic combination motion law were smaller ， and could effectively replace some polynomial motion laws.

Key words:follower;cam mechanism;motion law;contact collision;dynamics

 从动件运动规律对凸轮机构接触碰撞运动特性影响研究_金国光.pdf