辊子压带式带式输送机的动态特性

为提高设备运行的可靠性及安全性,利用Pro/E对辊子压带式带式输送机进行建模,通过ADAMS对模型进行不同工况下的动态特性分析。讨论了输送带刚度、阻尼系数、压辊分布、带速以及输送机对辊子压带式带式输送机动态特性的变化规律。分析结果表明,适当的增大输送带的刚度和阻尼系数,可以有效地减小启动过程中输送带的波动幅度;带速的增加,输送机系统的不稳定性增大;输送带的最大张力值与输送量近似成线性关系;输送距离与输送机系统的振动特性关系显著;适当地加大压辊的间距,还可以在一定程度上降低成本。虚拟样机技术对辊子压带式带式输送机进行动态分析的方法是可行的,为高带速、长运距辊子压带式带式输送机的发展提供了理论的依据。

Dynamic characteristics analysis of roller sandwich belt conveyor

Aimed at improving the reliability and safety of the equipment operation,this paper is focused on using Pro/E to develop a model for the roller sandwich belt conveyor and analyzing the dynamic characteristics of the model under different conditions by ADAMS.The paper also discusses the law governing the effect of conveyor belt stiffness,damping coefficient,roller pressure distribution,belt speed and conveyor on the dynamic characteristics of the roller sandwich belt conveyor.The analysis suggests that the appropriate increase in the stiffness and damping coefficient of the belt results in an effective reduction in belt fluctuations due to start-up procedure; increased belt speed means an increase in the instability of conveyor system; there occurs an approximately linear relationship between the conveyor belt maximum tension value and the amount of the conveyor belt; there is a significant relationship between conveying distance and conveyor systems vibration characteristics; and an appropriate increase in the space of the press rollers enables a somewhat lower cost.It follows that the demonstrated feasibility of analyzing the dynamic characteristics of roller sandwich belt conveyor using virtual prototyped technology may serve as a theoretical basis for developing high-speed and long-distance roller sandwich belt conveyors.