本文關(guān)鍵詞：基于磁流變液的插裝式高速開關(guān)閥研究　出處：《昆明理工大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 磁流變技術(shù) 磁流變插裝式高速開關(guān)閥 智能化控制 工作間隙 仿真分析

【摘要】：高速開關(guān)閥作為液壓控制技術(shù)中一個(gè)重要部分,其性能好壞將直接影響到液壓控制系統(tǒng)的整體性能。隨著液壓控制技術(shù)在工程機(jī)械中的不斷發(fā)展,液壓控制技術(shù)對高速開關(guān)閥提出了智能化、大流量、高響應(yīng)速度等技術(shù)要求,傳統(tǒng)的高速開關(guān)閥不能實(shí)現(xiàn)智能化控制,也不能解決大流量和高響應(yīng)速度間矛盾,顯然不能滿足上述要求。 磁流變技術(shù)是一種基于磁流變液磁流變效應(yīng)發(fā)展起來的新型控制技術(shù),具有智能、低能耗、高效率、高穩(wěn)定性等優(yōu)點(diǎn),可應(yīng)用在機(jī)械、汽車等眾多領(lǐng)域上。本文利用磁流變液磁流變機(jī)理設(shè)計(jì)一種磁流變高速開關(guān)閥實(shí)現(xiàn)液壓控制領(lǐng)域中智能化和自動(dòng)化控制,并在此基礎(chǔ)上,對磁流變高速開關(guān)閥進(jìn)行插裝式設(shè)計(jì),以滿足高速開關(guān)閥的大流量、高響應(yīng)速度等技術(shù)要求。 本文概述了磁流變技術(shù)及高速開關(guān)閥的國內(nèi)外研究現(xiàn)狀,介紹了磁流變液的組成、三種工作模式、磁流變微觀機(jī)理、性能影響因素及制備方法。利用ansys有限元分析軟件對不同相對位置工作間隙的磁流變高速開關(guān)閥及單雙線圈磁流變高速開關(guān)閥進(jìn)行了磁場分析比較,分析表明了工作間隙內(nèi)置及具有雙線圈結(jié)構(gòu)的磁流變高速開關(guān)閥在工作間隙處的磁感應(yīng)強(qiáng)度較優(yōu)。針對磁流變高速開關(guān)閥的在設(shè)計(jì)過程中面臨的關(guān)鍵技術(shù)問題,通過對閥材料選擇,電磁線圈、工作間隙、閥體、閥芯內(nèi)徑設(shè)計(jì)等步驟完成了磁流變高速開關(guān)閥的設(shè)計(jì)。為解決磁流變高速開關(guān)閥高響應(yīng)速度和大流量間的矛盾,采用二級控制方式,磁流變高速開關(guān)閥為先導(dǎo)級,二通插裝式錐閥作為主閥進(jìn)行二級液壓放大,設(shè)計(jì)出一種磁流變插裝式高速開關(guān)閥。最后利用Matlab/Simulink軟件建立磁流變插裝式高速開關(guān)閥的仿真模型,并進(jìn)行動(dòng)態(tài)仿真分析及流量特性分析,結(jié)果表明設(shè)計(jì)的磁流變插裝式高速開關(guān)閥性能滿足設(shè)計(jì)要求。
[Abstract]:As an important part of hydraulic control technology, the performance of high speed switch valve will directly affect the overall performance of hydraulic control system. With the development of hydraulic control technology in construction machinery. Hydraulic control technology has put forward intelligent, large flow, high response speed and other technical requirements for the high speed switch valve. The traditional high speed switch valve can not achieve intelligent control, nor can it solve the contradiction between large flow rate and high response speed. It is clear that the above requirements cannot be met. Magnetorheological technology is a new control technology based on the magnetorheological effect. It has the advantages of intelligence, low energy consumption, high efficiency and high stability. It can be used in machinery. In many fields, such as automobile, this paper designs a kind of magnetorheological high speed switch valve to realize intelligent and automatic control in hydraulic control field by using magneto-rheological fluid magnetorheological mechanism, and on this basis. The magnetorheological high speed switch valve is designed to meet the requirements of high flow rate and high response speed. In this paper, the research status of magnetorheological technology and high speed switch valve at home and abroad is summarized, and the composition, three working modes and micro mechanism of MRF are introduced. Ansys finite element analysis software was used to analyze and compare the magnetic field of the high speed magnetorheological valve with different working gap and the single and double coil MRF high speed switch valve. The analysis shows that the magnetic induction intensity of the magnetorheological high speed switch valve with double coil structure and built-in working gap is better. The key technical problems in the design process of the high speed magnetorheological valve are pointed out. Through valve material selection, electromagnetic coil, working gap, valve body. In order to solve the contradiction between high response speed and large flow rate of MRF high speed switch valve, a two stage control method is adopted. The magneto-rheological high speed switch valve is the pilot stage, and the two-way insert cone valve is used as the main valve for secondary hydraulic amplification. A magneto-rheological plugging high speed switch valve is designed. Finally, the simulation model of the magnetorheological plug high speed switch valve is established by using Matlab/Simulink software. The dynamic simulation and flow characteristic analysis are carried out. The results show that the performance of the magnetorheological plugged high speed switch valve meets the design requirements.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH134

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本文編號：1356488