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盾构掘进机是一种现代化的隧道掘进装备,其中的液压系统在掘进机的正常掘进中发挥主要作用。以土压平衡式盾构掘进机为例介绍盾构掘进机中推进系统、刀盘驱动、螺旋输送和管片拼装4个主要液压系统的组成结构及其工作原理,分析各部分液压系统的工作特性和工况条件。总结4种兼顾工作效率和能量利用率的液压系统节能方法,并针对各自的工作原理和应用范围,结合盾构液压系统的工作特点,指出各种节能技术在盾构液压系统中的适用范围和应用前景,为隧道盾构掘进机液压系统节能设计提供技术依据。以Φ1800mm盾构模拟试验台全局功率自适应刀盘驱动液压节能系统为例介绍一种节能技术的应用实例,实际掘进试验结果表明该系统具有明显的节能效果。
Shield boring machine is a modern tunneling equipment, hydraulic system which plays a major role in the normal boring machine heading. Taking earth pressure balance shield boring machine as an example, this paper introduces the structure and working principle of four main hydraulic system of shield boring machine in propulsion system, cutter drive, screw conveyor and segment assembly, analyzes the work of each part hydraulic system Characteristics and operating conditions. Summarizes four kinds of energy-saving methods of hydraulic system, which take both efficiency and energy efficiency into consideration. According to the working principle and application scope of each, combined with the working characteristics of the hydraulic system of shield, the applicable scope of various energy- Application prospects, provide technical basis for energy-saving design of hydraulic system of tunnel boring machine. Taking the example of global energy adaptive cutter head drive hydraulic energy-saving system with Φ1800mm shield simulation test bench as an example, an application example of energy-saving technology is introduced. Actual tunneling test results show that the system has obvious energy-saving effect.