Dynamics modeling and vibration failure analysis of a rigid-flexible coupled chain meshing drive system

被引：0
作者：
Wang, Wei [1 ,2 ]
Zhang, Teng [1 ,2 ]
Yang, Wenqing [1 ,2 ]
Zhang, Yimin [3 ]
Zhou, Yanxun [4 ]
机构：
[1] School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou
[2] National Key Laboratory of Intelligent Mining Equipment Technology, Xuzhou
[3] Institute of Equipment Reliability, Shenyang University of Chemical Technology, Shenyang
[4] School of Mechatronic Engineering, Jiangsu Normal University, Xuzhou
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2024年 / 43卷 / 18期
关键词：
chain meshing drive system; failure threshold; nonlinear dynamics; vibration characteristics;
D O I：
10.13465/j.cnki.jvs.2024.18.030
中图分类号：
学科分类号：
摘要：
The scraper conveyor chain meshing transmission is a rigid-flexible coupled drive system, which not only transmits the driving force but also bears the traction load. During operation, it is easy to fall off the chain under the coupled influence of the polygonal impact of the chain drive and the time-varying load. Regarding this issue, a nonlinear rigid-flexible coupled model of the chain ring-sprocket-bearing system was constructed, and the influences of installation size, sprocket teeth number, and load on the vibration characteristics were analyzed. Then, the failure mechanism caused by the vibration impact was investigated. The vibration failure threshold of the meshing transmission system was determined. The validity of the dynamic model was verified by a transmission test. The research results show that the system resonates when the sprocket speed reaches close to 840 r/min. The system may have chain dropping faults in four positions, and the vibration failure threshold of meshing is lower than 2 mm, which is the most likely to lead chain dropping faults. The selection of sprocket with a larger number of teeth effectively reduces the vibration impact of the chain meshing transmission system, and improves the operational stability of the transmission system. © 2024 Chinese Vibration Engineering Society. All rights reserved.
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页码：278 / 286
页数：8
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