摘要现代科学技术的快速发展,电磁阀在工业生产中的应用也越来越广泛,电磁阀的使用让工业生产开始由手动化向自动化转变。阀的动态响应特性和可靠性等性能直接影响整个系统的性能。所以在使用之前测试电磁阀的性能,从而确保电磁阀在使用过程中正常工作显得尤为重要。86319
在本课题设计中,首先通过对电磁阀的结构、工作原理进行了了解,分析了电磁阀性能测试应该从哪些方面着手,接着制定一个测试电磁阀的响应特性和寿命特性的综合测试方案,并且利用Solidworks 建立系统台架的三维模型,利用VC编程设计测试软件,实现测试数据的实时采集、处理与显示功能。
进行响应特性测试时,对电磁阀施加一定频率和占空比的脉冲信号,通过采集电磁阀阀控腔的压力变化曲线计算出电磁阀的四个测试时间参数,从而得出电磁阀的响应特性。进行寿命测试时,通过测试软件控制电磁阀在其极限频率下进行动作,并采集阀的出口处压力变化曲线,根据曲线的变化来判断电磁阀的寿命特性。
毕业论文关键词: 气动高频阀;测试系统;响应特性;寿命;试验
Abstract With the rapid development of modern science technology, the use of solenoid valve in commercial production is becoming more and more extensive。 Its dynamic response characteristic and reliability directly affect the performance of the whole system。 Therefore, test the performance of the solenoid valve before use, so as to ensure the normal operation of the solenoid valve in the process is particularly important。
This topic puts forward a set of plan which can test the response characteristic and life of pneumatic high-frequency valve through the research of its working principle,performance parameters and test methods。 We should design the pneumatic high-frequency valve performance test-bed and write test software according to the test contents and requirements。 Enable it to realize the data’s real-time display, query, report generation and printing function。 Finally we should have a test and research on the test system, providing the basis for the optimization design。
When testing the response characteristic, impose a pulse signal of a certain frequency and duty ratio on the electromagnetic valve。 Then we can calculate four time parameters like the open time lag, open period of response time, closing time lag and closing period of response time through gathering the curves of pressure in the solenoid valve control chamber。 Finally, we can conclude the response of the solenoid valve。 When testing the life of the valve, we can let the electromagnetic valve action in the current frequency through the test software, that is to say, making it switch quickly with high frequency。 And at the same time, gathering the curves of pressure in the solenoid valve control chamber to determine whether the valve fails。 Finally, we can conclude the solenoid’s life。
Keywords: pneumatic high-frequency valve;measurement system;response characteristic;life;experiment
目 录
第一章 绪论 1
1。1电磁阀的发展与研究意义 1
1。1。1电磁阀的特点及其应用 1
1。1。2电磁阀性能测试的重要性 1
1。2国内外研究情况 2
1。2。1国外研究情况 2
1。2。2国内研究情况 2
1。3存在的不足与发展方向 4
1。3。1发展方向 4
Solidworks气动高频阀动态性能测试系统设计:http://www.youerw.com/zidonghua/lunwen_102989.html