多路阀试验台系统设计与性能试验研究

发布时间：2018-02-21 15:25

本文关键词： 多路阀液压系统 PLC控制测试仿真　出处：《广东工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：液压多路换向阀简称液压多路阀,是为了满足多执行机构的要求而设计开发的。其结构是以多个换向阀为主体,集成了各种功能阀,如安全阀、单向阀、压力补偿阀、节流阀等。通过换向阀的换向,实现了对多个执行机构控制的多功能集成阀。结构复杂,功能强大,因此对多路阀的设计和维修难度都很大。为了解决这种问题,多路阀试验台应运而生。它通过模拟多路阀工作状态,得到相应的压力、流量数据曲线,通过比较分析,能极大的帮助多路阀的维修和设计。由于我国的液压技术发展时间短,国内的液压多路阀试验台大多存在着功能不全、可靠性差、测试精度和试验效率低等问题,对多路阀特殊功能的测试和研究更是比较少。而且主要以手控液压多路阀为研究对象,结构简单、联数少,对结构复杂的液控和电液比例控制液压多路阀的还研究较少。因此,以复杂程度高的多路阀为研究对象,对其进行液压多路阀试验台的设计和研究具有重要意义。本文以典型的液控式、半整体式川崎多路阀为试验对象,结合多路阀测试的最新试验标准,完成了多路阀试验台系统设计并对多路阀功能进行测试研究。该试验台主要设计包括以下三个部分:液压系统原理、试验台结构和测控系统设计。通过对试验项目的需求分析和多路阀特性功能分析,分析并设计液压系统原理图。考虑试验台的功能要求、成本高低、安全稳定、使用方便等因素,解决多路阀试验台的整机结构设计。同时根据多路阀加载模块原理图,利用SolidWorks软件分析并设计了集成块。以及根据多路阀测控系统的特点,编制试验流程,基于MCGS软件设计人机界面,分析测控系统的设计理念。根据测试结果分析多路阀结构、性能的合理性,同时还研究了多路阀主流的特性机能的测试方法,利用AMESim软件平台开发出多路阀动臂联模块的HCD仿真模型,并基于HCD仿真模型对多路阀典型的工作状态进行的动态特性研究。论文将液压、机械、电气、控制理论和软件开发等多学科技术有机结合,完成了多路阀试验台的开发与研究,并交与客户使用。本文研究所得相关结论,不仅对多路阀试验台研制提供详细实例和参考思路,同时对多路阀的研制也提供了一定理论指导。
[Abstract]:Hydraulic multiplex valve is designed and developed to meet the requirements of multiple actuators. Its structure is composed of multiple directional valves and various functional valves, such as safety valve, one-way valve, pressure compensation valve, etc. Throttle valve, etc. By reversing the direction valve, the multi-function integrated valve controlled by multiple actuators is realized. The structure is complex and the function is powerful, so it is very difficult to design and maintain the multi-way valve. The multiway valve test rig emerges as the times require. By simulating the working state of the multiway valve, the corresponding pressure and flow data curves can be obtained. Through comparison and analysis, it can greatly help the maintenance and design of the multiway valve. Because of the short development time of hydraulic technology in our country, Most of the domestic hydraulic multi-way valve test stands have some problems, such as incomplete function, poor reliability, low test precision and low test efficiency, etc. The test and research on the special function of multi-way valve is less, and the main research object is manual hydraulic multi-way valve, the structure is simple, the connection number is less, and the hydraulic multiplex valve with complex structure and electro-hydraulic proportional control is less. It is of great significance to design and study the hydraulic multiway valve test rig with high complexity. In this paper, the typical hydro-controlled and semi-integrated Kawasaki multiway valve is used as the test object. Combined with the latest test standard of multi-way valve test, the system design of multi-way valve test bench is completed and the function of multi-way valve is tested and studied. The main design of the test bench includes the following three parts: the principle of hydraulic system, Design of test bed structure and measurement and control system. By analyzing the requirements of the test project and the function analysis of multi-channel valve characteristics, the schematic diagram of hydraulic system is analyzed and designed. Considering the functional requirements of the test bed, the cost is high and low, and the safety and stability are considered. The structural design of the multiway valve test-bed is solved by using convenience and other factors. At the same time, according to the schematic diagram of the multi-way valve loading module, the integrated block is analyzed and designed by using SolidWorks software, and the test flow is compiled according to the characteristics of the multi-way valve measurement and control system. The man-machine interface is designed based on MCGS software, and the design concept of the measurement and control system is analyzed. According to the test results, the structure and the rationality of the performance of the multi-way valve are analyzed. At the same time, the testing method of the main characteristic function of the multi-way valve is also studied. Based on the AMESim software platform, the HCD simulation model of the multi-way valve arm is developed, and the dynamic characteristics of the typical working state of the multi-way valve are studied based on the HCD simulation model. The control theory and software development are combined organically, and the development and research of the multi-way valve test-bed are completed, and the research results are given to the customer. It not only provides a detailed example and reference idea for the development of the multi-way valve test rig, but also provides some theoretical guidance for the development of the multi-way valve.
【学位授予单位】：广东工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH137

【参考文献】