隧道掘进机快速拆装举撑液压系统仿真  

Simulation of Hydraulic System of Lifting Support for Disassembly and Assembly of Tunnel Boring Machine

作　　者：李楠 刘彦军 王国政 李恒 胡瑞 徐莉萍[2] 李跃松[2] LI Nan;LIU Yanjun;WANG Guozheng;LI Heng;HU Rui;XU Liping;LI Yuesong(China Railway Engineering Equipment Group Shield Manufacturing Co.,Ltd.,Zhengzhou Henan 450047,China;College of Mechanical and Electrical Engineering,Henan University of Science and Technology,Luoyang Henan 471003,China)

机构地区：[1]中铁工程装备集团盾构制造有限公司,河南郑州450047 [2]河南科技大学机电工程学院,河南洛阳471003

出　　处：《机床与液压》2024年第13期200-204,共5页Machine Tool & Hydraulics

基　　金：郑州市重大科技专项项目(2020CXZX0066)。

摘　　要：针对隧道掘进机(TBM)在施工现场因空间限制无法满足调试所需较大空地的问题,设计一种用于TBM洞内快速拆装变位的举撑液压系统。该液压系统由4组顶升单元构成,通过4组顶升单元同步运动实现TBM的起吊和举撑;液压顶升单元由4根四级液压缸、液压控制系统、激光位移传感器和机架构成。基于AMESim建立四级液压缸、变量泵和比例节流阀以及整个顶升单元的液压仿真模型,通过仿真分析负载下液压缸运动的速度、位移和压力曲线。结果表明:改变比例节流阀的输入信号可以实现四级液压缸速度的变化;泵出口压力可由比例溢流阀调整;在2.5×105 N的额定负载下,四级缸的换级工作腔压力逐级上升;随着换级,活塞杆伸出速度逐渐上升。与理论计算对比显示,建立的TBM洞内快速拆装液压系统顶升单元的AMESim仿真结果和理论值基本吻合。Aiming at the problem that the tunnel boring machine(TBM)cannot meet the large open space required for debugging due to space limitation in the construction site,a hydraulic system of the lifting support for the disassembly and assembly of TBM was developed.The hydraulic system consisted of four groups of lifting units,by which the lifting and support of TBM was realized through synchronous movement of four groups of lifting units.The hydraulic lifting system consisted of four four-stage hydraulic cylinders,hydraulic control system,laser displacement sensor and frame.Based on AMESim,the hydraulic simulation models of four-stage hydraulic cylinder,variable displacement pump and the proportional throttle valve as well as the whole jacking unit were established.And the speed,displacement and pressure curves of the hydraulic cylinder movement under load were analyzed through simulation.The results show changing the input signal of the proportional throttle valve can achieve a change in the speed of the four stage hydraulic cylinder.The pump outlet pressure can be adjusted by a proportional relief valve.Under the rated load of 2.5×105 N,the pressure of the stage changing working chamber of the fourth stage cylinder gradually increases.As the stage changes,the extension speed of the piston rod gradually increases.Compared with theoretical calculations,the AMESim simulation results of the quick disassembly hydraulic system lifting unit in the TBM tunnel established are basically consistent with the theoretical values.

关 键 词：隧道掘进机 快速拆装举撑液压系统 同步运动 AMESIM仿真 

分 类 号：TN384[电子电信—物理电子学]