陶瓷压机大流量比例节流阀的研制

发布时间：2018-02-21 11:46

本文关键词： 陶瓷压机电液系统大流量比例节流阀 AMR7 AMESim 实验研究　出处：《浙江大学》2012年硕士论文　论文类型：学位论文

【摘要】：全自动陶瓷压机是陶瓷砖生产线上的关键装备,其性能直接关系到产品的质量和生产效率。陶瓷压机的性能由主机和电液控制系统决定,电液控制系统是陶瓷压机的关键技术之一,而电液控制系统中的大流量比例节流阀目前基本靠国外进口,所以研制大流量比例节流阀对填补国内空白使其国产化具有重要意义。本文通过对比Rexroth、Eaton Vickers公司的同类产品,提出使用比例三通阀作为先导阀、主级位移电反馈的结构方案,并设计先导阀和主阀的主要参数,然后在AMESim中仿真影响动态特性的因素。在仿真的基础上对阀的参数进行优化,完成了阀的详细结构设计并研制出大流量比例节流阀样机。结合当今高速发展的计算机控制技术,设计基于ARM7内核的数字控制器。嵌入式计算机控制系统是当今单片机控制系统的研究热点之一,将嵌入式系统应用于大流量比例节流阀的控制器中,方便控制算法的设计与调试,同时也为控制器与上位机的通信创造了机会,为以后系统的扩展打下基础。最后本文设计了测试该阀的动态和稳态性能的实验系统,实验系统采用比较流行的Labview进行测试程序的编写,搭配研华的数据采集卡,可以测试该阀的稳态和动态特性曲线,实验验证该阀的性能能否达到设计要求,以及对AMESim模型的验证。
[Abstract]:Automatic ceramic press is the key equipment in ceramic tile production line. Its performance is directly related to product quality and production efficiency. The performance of ceramic press is determined by main engine and electro-hydraulic control system. The electro-hydraulic control system is one of the key technologies of ceramic press, and the large flow proportional throttle valve in the electro-hydraulic control system is basically imported from abroad at present, so it is of great significance to develop the large flow proportional throttle valve to fill in the domestic blank and make it domestic. By comparing the similar products of Rexroth Eaton Vickers Company, this paper puts forward the structure scheme of using proportional three-way valve as pilot valve and main displacement electric feedback, and designs the main parameters of pilot valve and main valve. On the basis of the simulation, the parameters of the valve are optimized, the detailed structure design of the valve is completed and the prototype of the large flow proportional throttle valve is developed. Combined with the rapid development of computer control technology, a digital controller based on ARM7 kernel is designed. The embedded computer control system is one of the hotspots in the research of single-chip computer control system. The embedded system is applied to the controller of the large flow proportional throttle valve, which facilitates the design and debugging of the control algorithm, creates the opportunity for the communication between the controller and the host computer, and lays the foundation for the expansion of the system in the future. Finally, an experimental system is designed to test the dynamic and steady-state performance of the valve. The experimental system uses the popular Labview to compile the test program, and with the data acquisition card of Yanhua, the steady and dynamic characteristic curves of the valve can be tested. The performance of the valve can meet the design requirements and verify the AMESim model.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137

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