带式输送机液压张紧系统的仿真分析

Simulation and Analysis of Hydraulic Tensioning System of Belt Conveyor Based on AMESim

建立了比例溢流阀控制的液压张紧系统过渡段的功率键合图,并通过功率键合图推导出系统的状态方程,通过建立系统的AMESim仿真模型,得出液压张紧系统压力曲线,给出了使压力按照正弦函数规律变化来减小冲击和振动的方法,并推导出压力的变化函数,仿真结果表明通过控制比例溢流阀使压力按照推导的正弦函数规律变化能够解决压力突变问题,从而减小系统的冲击和振动。

The power bond graph of hydraulic tension system is established, and the state equation of the system has been derived by power bond graph. The model has been built by using AMESim. The pressure curve of the hydraulic system has been obtained. A method for reducing the impact and vibration of the pressure in accordance with the law of the sine function is given. The simulation results show that the pressure change can be solved by controlling the proportional overflow valve, which can reduce the impact and vibration of the system.