機電液實驗臺自動化改造設(shè)計


 目錄
摘要................................................................................................................................................I
英文摘要...........................................................................................................................................II
第一章 緒論.................................................................................................1
1.1 課題來源......................................................1
1.2 機電液綜合實驗臺的發(fā)展現(xiàn)狀...................................2
1.3 本課題的意義.................................................2
1.3.1 實驗教學(xué)的意義 .........................................2
1.3.2 現(xiàn)實意義和實際價值......................................3
1.4 本課題研究的內(nèi)容..............................................4
第二章 實驗臺液壓系統(tǒng)的總體方案.....................................6
2.1概述..................................................6
2.1.1 液壓子系統(tǒng).................................................6
2.1.2 計算機輔助控制系統(tǒng).........................................6
2.2 本實驗臺的技術(shù)要求............................................7
2.2.1 實驗臺的改造及預(yù)期目標(biāo) ....................................7
2.2.2 實驗臺組合方式............................................7
2.2.3 實驗臺的特點..............................................8
2.3 液壓系統(tǒng)回路設(shè)計...............................................8
2.3.1 確定主要參數(shù)，編制動作表...................................8
2.3.2 擬定液壓系統(tǒng)原理圖.........................................9
第三章液壓回路設(shè)計方案.............................................11
3.1 液壓回路的整體設(shè)計...........................................11
3.2 液壓實驗原理說明.............................................11
3.2.1 液壓泵的性能特性試驗......................................12
3.2.2 節(jié)流調(diào)速性能特性實驗......................................13
第四章 液壓系統(tǒng)硬件部分的設(shè)計......................................16
4.1 液壓控制元件的選型............................................16
4.1.1 本實驗臺液壓系統(tǒng)的性能參數(shù)...............................16
4.1.2 液壓元件的選取...........................................16
4.2 底板的設(shè)計及說明.............................................19
第五章 控制部分.....................................................21
5.1 試驗臺的控制..................................................21
5.2 系統(tǒng)設(shè)計......................................................22
5.3 改造后的測試功能...............................................23
第六章 總結(jié)與展望...................................................28
6.1 總結(jié)..........................................................28
6.1.1 液壓回路設(shè)計的關(guān)鍵........................................28
6.1.2 液壓回路設(shè)計中存在的問題..................................28
6.1.3 改造后的創(chuàng)新之處..........................................28
6.2 技術(shù)展望......................................................29
致 謝...............................................................30
參 考 文 獻(xiàn).........................................................31
附錄.......................................................32

摘要
液壓技術(shù)已廣泛的應(yīng)用于國民生產(chǎn)的各個環(huán)節(jié)，液壓元件、組件和系統(tǒng)性能的高低直接影響機器的質(zhì)量，對元件、組件和系統(tǒng)的性能參數(shù)進(jìn)行測試分析，以滿足各種用途的需要，就成為不可缺少的重要環(huán)節(jié)。隨著計算機軟硬件技術(shù)和計算機輔助測試技術(shù)的發(fā)展，特別是虛擬儀器技術(shù)的出現(xiàn)，為開發(fā)通用的液壓元件計算機輔助測試系統(tǒng)提供了便利條件。因此，將測試領(lǐng)域中的最新技術(shù)— 虛擬儀器技術(shù)應(yīng)用于液壓元件及系統(tǒng)性能的自動測試中，以提高測試的效率和精度，對于液壓元件和系統(tǒng)的研發(fā)以及液壓產(chǎn)品的推廣應(yīng)用具有重要作用。
為適應(yīng)電液比例控制技術(shù)教學(xué)和科研的需要，我們進(jìn)行了實驗室的機電液實驗臺自動化改造。本文論述對機電液綜合實驗臺液壓測試回路的整合改造，提高了原實驗臺的技術(shù)性能，研制出一種多功能模塊化的、先進(jìn)的、可靠的液壓泵、液壓閥計算機輔助測試試驗系統(tǒng)，能夠自動按預(yù)先設(shè)定好的程序完成對各種泵、閥的性能測試。

關(guān)鍵詞:多功能液壓試驗臺 比例溢流閥 計算機輔助測試

 
Abstract
The technology of hydraulicp ressureh as been wdely used in every part of National Product. The performance of hydraulic component and hydraulic circuit can influence the quality of machine directly. So it is important to test and analyze the performance index of hydraulic component and circuit, in order to meet the needs of different purpose.The development of technology of computer software and hardware as well as the development of CAT (Computer Aided Test), especially the appearance of VI (Visual Instrument), provides convenience to develop multifunctional CAT system of hydraulic components.Thus,the study on CAT system based on the most new test technology of VI, may play a very important role in research of new hydraulic components and systems,also in extending application of hydraulic products.
In order to meet the needs of instruction and scientific research,we decided to develop to Automation of electro-hydraulic test-bed. This article discusses the electro-hydraulic integrated circuit of hydraulic test of the integration and enhance the original test-bed of technical performance, the development of a multi-functional modular, advanced and reliable hydraulic pumps,hydraulic valve computer-aided test Test System, can automatically at a pre-configured procedures of the various pumps, valves of the performance test.