液压缸型式试验台系统与结构分析及控制特性研究

发布时间：2018-03-03 15:17

本文选题：液压缸　切入点：试验台　出处：《沈阳工业大学》2012年硕士论文　论文类型：学位论文

【摘要】：液压缸是一种能量转换的液压执行元件,它能将液压能转变为直线运动的机械功,因而是液压系统中的执行器。随着我国科学技术的不断发展,液压缸在液压传动与控制中的应用也越来越广泛,液压缸的功用被不断地开发并利用。而与此同时,用户对于液压缸性能的要求也越来越高,而当前我国的液压缸检测设备与方法严重制约了液压缸生产技术的提高,因为改进与提高当前的液压缸检测设备与方法,推出一款新型的液压缸型式试验台成为急需解决的问题。论文首先在查阅了大量国内外资料的基础上,综述了国内外液压缸试验台的发展现状、试验台的研究意义以及国家标准规定的试验项目等内容。其次,针对实际生产需要,本文介绍了液压缸型式试验台的系统功能分析,结构分析,以及可实现自动智能控制的计算机控制系统。最后,文章对液压缸型式试验台中采用的比例溢流阀压力控制系统进行了加载特性分析,并对其压力控制特性进行了研究。本文论述的新型综合性液压缸型式试验台,能进行各规格液压缸型式试验和出厂试验,并附加70MPa超高压试验。试验台最多可对六个液压缸进行同步试验,也可使常规、高温、超高压三种试验同步进行。此外,试验台可实现远程无级调压,复合调速,比例加载,换向稳定,自动排油,无接触式行程测量,油温自动控制,系统试验自动智能控制。从而试验台达到了全面提高液压缸性能检测的准确性、稳定性以及可靠性,降低了劳动强度,提高了生产效率,为液压缸生产技术水平的提高提供了坚实的基础,对液压缸的生产与检测具有重大的指导意义与现实意义。
[Abstract]:The hydraulic cylinder is a kind of hydraulic actuator with energy conversion, which can transform the hydraulic energy into the mechanical work of linear motion, so it is the actuator in the hydraulic system. With the development of science and technology in our country, The application of hydraulic cylinder in hydraulic transmission and control is more and more extensive, and the function of hydraulic cylinder is continuously developed and utilized. At the same time, the requirements of users for the performance of hydraulic cylinder are more and more high. At present, the equipment and methods of hydraulic cylinder detection in our country have seriously restricted the improvement of the production technology of hydraulic cylinders, because the current inspection equipment and methods for hydraulic cylinders have been improved and improved. The introduction of a new type of hydraulic cylinder type test bed has become an urgent problem. On the basis of consulting a large number of domestic and foreign data, this paper summarizes the development status of the hydraulic cylinder test-bed at home and abroad, the research significance of the test-bed and the test items stipulated by the national standard, etc. Secondly, it aims at the actual production needs. This paper introduces the system function analysis, structure analysis and computer control system which can realize automatic intelligent control of hydraulic cylinder type test bed. In this paper, the pressure control system of proportional relief valve used in hydraulic cylinder type test table is analyzed and its pressure control characteristics are studied. The new comprehensive hydraulic cylinder type test bench described in this paper can carry out hydraulic cylinder type tests and factory tests of various specifications, with the addition of 70MPa ultra-high pressure test. The test bench can simultaneously test six hydraulic cylinders at most, and can also make routine and high temperature test. In addition, the test bench can realize remote stepless voltage regulation, compound speed regulation, proportional loading, commutation stability, automatic oil discharge, non-contact stroke measurement, oil temperature automatic control, The automatic intelligent control of system test can improve the accuracy, stability and reliability of hydraulic cylinder performance detection, reduce labor intensity and improve production efficiency. It provides a solid foundation for improving the production technology level of hydraulic cylinder and has great guiding and practical significance for the production and detection of hydraulic cylinder.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.51

【引证文献】