盾构机刀盘驱动液压系统设计与仿真分析

发布时间：2018-03-02 18:29

本文选题：盾构机　切入点：刀盘驱动液压系统　出处：《沈阳理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：盾构机是集机械、电气、液压、测量、控制等多学科于一体的,专门用于地下隧道工程的大型机械设备。刀盘作为盾构机的核心部件,其结构复杂,需结合具体施工地质情况进行设计分析。本文对盾构机刀盘驱动液压系统进行设计,通过AMESim仿真软件对盾构机刀盘驱动液压系统进行仿真分析。这将有利于提高我国盾构机的设计制造技术水平,为以后的盾构机设计制造工作奠定基础。本文主要研究内容如下:首先,综述了盾构机的施工原理及分类,介绍了盾构机国内外发展现状和发展近况,并对几种驱动方式做了比较,最后概述了本课题的研究内容以及主要进行的研究工作。其次,针对刀盘驱动液压系统的设计要求,采用变量泵—变量马达的闭式容积调速回路进行系统设计,并分析其结构组成和工作原理,根据系统主要技术参数,进行参数计算、性能验算以及液压元件的选型,最后设计了集成阀块和液压泵站。再次,对主要液压元件进行数学建模,并从变量泵—定量马达系统和定量泵—变量马达系统入手,建立变量泵—变量马达系统的数学模型,并就影响刀盘驱动液压系统的主要参数提出优化方案。最后,采用AMESim软件对系统各回路进行建模,设定工程参数,搭建刀盘驱动液压系统模型,并对系统在不同工况下进行仿真分析,得出刀盘转速能随调速信号变化而变化,系统具有良好跟随性,采用AMESim和Simulink对刀盘驱动液压系统进行联合仿真,得出系统具有良好的稳定性、适应性,最后利用北方重工正在调试的设备进行实际验证。
[Abstract]:The shield machine is a kind of large mechanical equipment which integrates mechanical, electrical, hydraulic, measurement and control disciplines and is specially used in underground tunnel engineering. As the core component of shield machine, the structure of the cutter head is complex. It is necessary to design and analyze the concrete geological conditions of construction. This paper designs the hydraulic system driven by the cutter head of shield machine. The hydraulic system driven by cutter head of shield machine is simulated and analyzed by AMESim software, which will help to improve the technical level of design and manufacture of shield machine in China. The main contents of this paper are as follows: firstly, the construction principle and classification of shield machine are summarized, and the present situation and development of shield machine at home and abroad are introduced. Finally, the research contents and main research work of this subject are summarized. Secondly, the design requirements of the hydraulic system driven by the cutter head are discussed. The system is designed by using the closed volumetric speed regulation loop of variable pump and variable motor, and its structure composition and working principle are analyzed. According to the main technical parameters of the system, parameter calculation, performance checking calculation and type selection of hydraulic components are carried out. Finally, the integrated valve block and hydraulic pump station are designed. Thirdly, the mathematical model of the variable pump-variable motor system and the quantitative pump-variable motor system are established. Finally, AMESim software is used to model each loop of the system, set up the engineering parameters, and set up the hydraulic system model of the cutter drive hydraulic system. The simulation analysis of the system under different working conditions shows that the speed of the cutter head can change with the speed control signal, and the system has good following performance. AMESim and Simulink are used to simulate the hydraulic system driven by the cutter head. It is concluded that the system has good stability and adaptability. Finally, the equipment being debugged by Northern heavy Industry is used for practical verification.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U455.39

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