盾构机推进液压系统设计与仿真分析

摘要

In this paper ,the hydraulic thrust system of a shield tunneling machine is introduced in detail and its systematic composition and working principle are explained .The electro-hydraulic proportional control technique is used to control thrust pressure and thrust displacement .The results of simulation analysis of hydraulic thrust system show that with the use of the strategy of electro-hydraulic proportional pump and proportional pressure-reducing valve ,the requirements of the velocity and pressure are met .%对盾构机推进液压系统做了详细的介绍，阐述了其系统组成及工作原理。该系统应用电液比例控制技术实现了推进力和位移的控制。通过对推进系统的仿真分析表明：采用电液比例泵和比例减压阀的控制策略，满足了系统的推进速度和压力要求。