Yao Yanping, Zhang Bisheng
School of Mechanical Engineering, Taiyuan University of Science & Technology, Taiyuan, China.
PLoS One. 2020 Jul 7;15(7):e0235768. doi: 10.1371/journal.pone.0235768. eCollection 2020.
The implementation of multiple drives for belt conveyors can solve the problems associated with motor overpower and the excessive tension of conveyor belts powered by a single drive. However, multiple drives can suffer from uneven driving power allocation. Among various factors, the selection of the type of conveyor belt particularly affects the power allocation. The current study aims to investigate the influence of the elastic modulus of a conveyor belt on the power allocation of multi-drive conveyors. Based on the Kelvin-Voigt viscoelastic model, a discrete model of an entire machine is established. Kelvin-Voigt software is used to simulate the working conditions of conveyor belts with different elastic moduli under full loads. The driving forces of individual rollers are obtained and then compared. Compared to other types of belts, a steel wire core conveyor belt, whose elastic modulus is relatively high, effectively improves the stability of the conveyor belt under a full load after start-up to achieve a reasonable power allocation. The results of this study provide a foundation for conveyor belt selection for multi-drive conveyors.
带式输送机采用多驱动装置可解决与电动机过载以及由单一驱动装置驱动的输送带张力过大相关的问题。然而，多驱动装置可能存在驱动功率分配不均的情况。在各种因素中，输送带类型的选择对功率分配影响尤为显著。当前研究旨在探究输送带弹性模量对多驱动带式输送机功率分配的影响。基于开尔文-伏伊特粘弹性模型，建立了整机离散模型。利用开尔文-伏伊特软件模拟不同弹性模量的输送带在满负荷下的工作状况。获取各个托辊的驱动力并进行比较。与其他类型的输送带相比，弹性模量相对较高的钢丝绳芯输送带在启动后满负荷情况下能有效提高输送带的稳定性，以实现合理的功率分配。本研究结果为多驱动带式输送机的输送带选型提供了依据。
