1.2m缩尺实验盾构机械结构与液压系统设计

 为研究盾构掘进时各物理参数之间的相互影响，进而确定相适应的工作参数，设计开发了全断面盾构掘进机综合模拟试验台．其中，用于模拟真实盾构掘进的缩尺盾构主要由刀盘系统、推进系统、螺旋输送机系统等组成．根据实验的需要，设计了缩尺盾构的机械结构，详细说明了结构设计的思想以及缩尺盾构的工作过程．设计了缩尺盾构的液压系统，详细说明了液压系统的工作原理、功能特点和选型计算．利用AMESim软件对刀盘液压系统和推进液压系统进行仿真分析.仿真结果显示，刀盘转速和缩尺盾构的推进速度都可以实时控制，所设计的液压系统能够满足实验需要.

Mechanical structure and hydraulic system design of ¢1.2 m simulated shield machine

A full face shield tunneling machine simulator test rig was designed for the research on the interaction of the various physical parameters in the process of tunneling in order to determine the adapted working parameters for different geological conditions. The simulated shield machine consisting of a cutter head system， a thrust system and a screw conveyor system was used to simulate the real tunneling process of the shield. The mechanical structure of the simulated shield machine was designed， so were the cutter head hydraulic system， the thrust hydraulic system and the screw conveyor hydraulic system. The design ideas of structure and the working processes of the simulated shield machine were introduced as well as the working principle， function features and units selection of the hydraulic systems. AMESim was used to simulate the speed regulation control features of the cutter head hydraulic system and the thrust hydraulic system. The simulation results indicate the rotating speed of cutter and the speed of simulated shield machine can both be controlled real timely．