伺服液压缸试验台的设计与研究

发布时间：2018-05-07 07:53

本文选题：液压伺服控制 + 伺服液压缸静动态检测　；参考：《东北大学》2012年硕士论文

【摘要】：液压厚度控制系统是现代大型板带轧机的核心系统,而伺服液压缸是轧钢生产线的执行机构,其性能的好坏或能否正常工作是决定钢带质量和产量的关键。随着我国钢铁行业的高速发展以及大型轧制生产线的不断投产,对大型轧制伺服缸的数量需求越来越多,质量要求也越来越高。因此液压缸的测试已经成为我国钢铁行业关注的焦点。因此无论从科学性还是从实用性出发,建立一个用来专门检测大型轧制伺服液压缸性能的试验台,对液压AGC系统大型轧制伺服油缸动态和静态试验研究都是十分重要。本文设计了一套用于检测大型轧制伺服液压缸的实验台。可以进行静态试验项目和动态试验项目的检测. 本论文本文采用了符合现场工况要求的阀控非对称液压缸伺服系统。区别于经典的阀控对称液压缸系统的建模方式,本文重新建立了阀控非对称缸的数学模型,并对被测缸系统和加载系统各个参数进行了详细的推导和求解。确定了液压系统传递函数的方框图,并应用Matlab/Simulink仿真平台对液压系统进行仿真分析,而且采用PID校正拓展系统对系统进行校正。经仿真得知系统基本符合设计要求。此外,本论文对试验台的试验方法进行了研究,对各个试验项目的试验原理进行了介绍,通过VB6.0编写控制程序和试验界面,实现了各个试验项目的试验方法,得到了比较满意的试验结果,证明本论文设计的液压系统和编写的控制程序合理。
[Abstract]:The hydraulic thickness control system is the core system of the modern large plate strip mill, and the servo hydraulic cylinder is the executive mechanism of the rolling line. The quality of its performance or whether it can work normally is the key to determine the quality and output of the strip. With the rapid development of iron and steel industry in China and the continuous production of large-scale rolling production line, more and more large rolling servo cylinders are required and the quality requirements are higher and higher. Therefore, the testing of hydraulic cylinder has become the focus of our steel industry. Therefore, it is very important for the dynamic and static test of large rolling servo cylinder in hydraulic AGC system to establish a test rig for testing the performance of large rolling servo cylinder from the scientific and practical point of view. In this paper, a set of test bench is designed to detect large rolling servo hydraulic cylinder. Static test items and dynamic test items can be tested. In this paper, the valve-controlled asymmetric hydraulic cylinder servo system is adopted to meet the requirements of field operation. Different from the classical modeling method of the valve-controlled symmetrical hydraulic cylinder system, the mathematical model of the valve-controlled asymmetric cylinder is re-established in this paper, and the parameters of the measured cylinder system and the loading system are derived and solved in detail. The block diagram of the hydraulic system transfer function is determined, and the hydraulic system is simulated and analyzed by using the Matlab/Simulink simulation platform, and the PID correction extension system is used to correct the system. Simulation shows that the system basically meets the design requirements. In addition, this paper has carried on the research to the test bed test method, has carried on the introduction to each test item test principle, through the VB6.0 programming control program and the test interface, has realized each test item test method. The satisfactory test results show that the hydraulic system and the control program designed in this paper are reasonable.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.51

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