【摘要】：隨著現(xiàn)代氣動(dòng)技術(shù)的發(fā)展，氣動(dòng)電磁閥在工業(yè)領(lǐng)域中的應(yīng)用正日益拓寬，尤其是氣動(dòng)高速電磁閥的應(yīng)用。在自動(dòng)控制系統(tǒng)中，電磁閥是動(dòng)作的執(zhí)行者，它雖在一個(gè)配角的位置，但其對(duì)系統(tǒng)安全卻起到?jīng)Q定性作用。國(guó)內(nèi)現(xiàn)有的電磁閥檢測(cè)設(shè)備結(jié)構(gòu)復(fù)雜、測(cè)試功能單一；而國(guó)外先進(jìn)的電磁閥檢測(cè)設(shè)備又不能廣泛應(yīng)用于國(guó)內(nèi)電磁閥生產(chǎn)廠家。因此，研制一套能夠保證氣動(dòng)電磁閥出廠質(zhì)量的性能檢測(cè)系統(tǒng)顯得尤為重要。本文采用嵌入式技術(shù)研制了一套氣動(dòng)電磁閥性能檢測(cè)儀，實(shí)現(xiàn)了對(duì)二位三通電磁閥、二位五通電磁閥以及三位五通電磁閥等氣動(dòng)電磁閥的動(dòng)態(tài)響應(yīng)特性、啟動(dòng)氣壓和泄漏量的測(cè)試。主要研究?jī)?nèi)容如下： （1）首先以兩位三通電磁閥為例分析了氣動(dòng)電磁閥的結(jié)構(gòu)和工作機(jī)理，從理論的角度對(duì)電磁閥的工作特性進(jìn)行了深入的分析和理解，并運(yùn)用Simul-ink仿真技術(shù)對(duì)電磁閥的動(dòng)態(tài)響應(yīng)特性進(jìn)行了仿真。然后參考國(guó)內(nèi)現(xiàn)有的一些有關(guān)電磁閥的行業(yè)標(biāo)準(zhǔn)，制定了電磁閥檢測(cè)系統(tǒng)的設(shè)計(jì)方案。 （2）采用基于ARM的嵌入式技術(shù)研制了氣動(dòng)電磁閥性能檢測(cè)儀，實(shí)現(xiàn)對(duì)電磁閥的動(dòng)態(tài)響應(yīng)特性、啟動(dòng)氣壓和泄漏量的測(cè)試。檢測(cè)儀主要由基于ARM處理器的硬件平臺(tái)、Windows CE操作系統(tǒng)下的測(cè)試軟件和相應(yīng)的氣路組成。 （3）首先通過(guò)試驗(yàn)分析了系統(tǒng)硬件控制部分的響應(yīng)速度為0.114ms，，可以測(cè)試響應(yīng)時(shí)間在ms級(jí)的高速電磁閥。然后通過(guò)給系統(tǒng)輸入已知信號(hào)的方式，分析了系統(tǒng)的壓力測(cè)量精度小于5kPa，系統(tǒng)最高采樣頻率為10kHz，滿足技術(shù)要求。最后采用MSA（測(cè)量系統(tǒng)分析）中的評(píng)定方法I，對(duì)不同的二位三通電磁閥、二位五通電磁閥以及三位五通電磁閥做了大量試驗(yàn)，分析了不同類型電磁閥的動(dòng)態(tài)響應(yīng)特性和啟動(dòng)氣壓，并參照J(rèn)B/T10633-2006《專用檢測(cè)設(shè)備評(píng)定方法指南》對(duì)系統(tǒng)性能進(jìn)行評(píng)定，計(jì)算得到的系統(tǒng)測(cè)量能力指數(shù)（Cg、Cgk）均≥1.33，滿足標(biāo)準(zhǔn)JB/T10633-2006對(duì)檢測(cè)設(shè)備重復(fù)性的要求。 （4）在100kPa~700kPa的氣源壓力和19V~29V的驅(qū)動(dòng)電壓下對(duì)不同類型的電磁閥進(jìn)行了大量的試驗(yàn)，分析了不同的氣源壓力和驅(qū)動(dòng)電壓對(duì)電磁閥動(dòng)態(tài)響應(yīng)特性的影響，為氣動(dòng)電磁閥動(dòng)態(tài)響應(yīng)特性的改進(jìn)提供了依據(jù)。
[Abstract]:With the development of modern pneumatic technology, the application of pneumatic solenoid valve in industrial field is widening day by day, especially the application of pneumatic high speed solenoid valve. In automatic control system, solenoid valve is the executor of action. Although it is in a supporting position, it plays a decisive role in system safety. The existing solenoid valve detection equipment in China has complex structure and single testing function, while the advanced solenoid valve detection equipment abroad can not be widely used in domestic solenoid valve manufacturers. Therefore, it is very important to develop a performance test system which can guarantee the quality of pneumatic solenoid valve. In this paper, a set of pneumatic solenoid valve performance detector is developed by using embedded technology. The dynamic response characteristics of two-position three-way solenoid valve, two-position five-way solenoid valve and three-position five-way solenoid valve are realized. Initiate air pressure and leakage test. The main research contents are as follows: (1) the structure and working mechanism of the pneumatic solenoid valve are analyzed by taking the two-position three-way solenoid valve as an example, and the working characteristics of the solenoid valve are deeply analyzed and understood from the perspective of theory. The dynamic response characteristics of solenoid valve are simulated by Simul-ink simulation technology. Then referring to some existing industry standards of solenoid valve in China, the design scheme of solenoid valve detection system is established. (2) the pneumatic solenoid valve performance detector is developed by using embedded technology based on ARM. The dynamic response characteristics of solenoid valve and the test of air pressure and leakage are realized. The tester is mainly composed of the test software and the corresponding gas path based on the ARM processor hardware platform. (3) the response speed of the hardware control part of the system is 0.114 Ms, which can be measured. (3) through the experiment, the response speed of the hardware control part of the system is 0.114 ms. A high speed solenoid valve with a response time of Ms. Then, by inputting the known signal to the system, the pressure measurement accuracy of the system is less than 5 KPA and the highest sampling frequency of the system is 10 kHz, which meets the technical requirements. Finally, a large number of tests are made on different two-position three-way solenoid valves, two-position five-way solenoid valves and three-position five-way solenoid valves using the evaluation method in MSA (measuring system Analysis). The dynamic response characteristics and starting pressure of different types of solenoid valves are analyzed. The performance of the system is evaluated according to the JB/T10633-2006 Guide for Evaluation methods of Special testing equipment. The calculated system measurement capability index (CgGK) is 鈮

本文編號(hào)：2160830