本文選題：水壓傳動 + 水壓缸設(shè)計(jì)　； 參考：《昆明理工大學(xué)》2017年碩士論文

【摘要】：當(dāng)今的社會飛速發(fā)展,在經(jīng)濟(jì)快速發(fā)展的情況下環(huán)境污染和能源減少現(xiàn)象日趨嚴(yán)重。純水液壓傳動技術(shù)是把純水替代普通液壓油的一種綠色環(huán)保的的傳動技術(shù)。眾所周知,純水具有無毒、來源廣泛,綠色衛(wèi)生,阻燃性好等優(yōu)點(diǎn),當(dāng)今世界許多國家都致力于純水液壓技術(shù)的研究工作,水壓技術(shù)的進(jìn)步與發(fā)展已成為液壓領(lǐng)域一個重要的發(fā)展趨勢。本論文在基于大量的國內(nèi)外參考文獻(xiàn)的基礎(chǔ)上,論述了國內(nèi)外水壓系統(tǒng)及元件的研究與發(fā)展現(xiàn)狀,提出了純水液壓傳動缸研究的方向和內(nèi)容。通過對純水液壓傳動缸的分析研究,為水壓系統(tǒng)及元件的設(shè)計(jì)提供了一定的依據(jù)。本論文來源于云南省科技計(jì)劃項(xiàng)目《綠色液壓傳動節(jié)能型無靜差壓力控制閥的理論及試驗(yàn)研究》的部分內(nèi)容。本文針對水介質(zhì)在水壓傳動的摩擦學(xué)缺陷及腐蝕性作了概括分析,分析了水壓缸跟油壓缸在材料、密封、結(jié)構(gòu)、摩擦力及過流特性等方面的區(qū)別,結(jié)合現(xiàn)代液壓技術(shù)與現(xiàn)代仿真技術(shù)對純水液壓傳動缸進(jìn)行了研究與設(shè)計(jì),分析了水壓傳動缸面臨的關(guān)鍵性技術(shù)問題。首先,對水壓缸元件在水壓系統(tǒng)中的存在的現(xiàn)狀問題做了研究,并介紹了水壓缸領(lǐng)域重點(diǎn)研究的關(guān)鍵技術(shù)問題。其次,通過建立水壓缸系統(tǒng)模型,做了基于AMESim的水壓缸系統(tǒng)的泄漏量仿真,得出了不同間隙及不同水動力粘度系數(shù)對泄漏量的影響為了減少泄漏,間隙高度應(yīng)小于0.01mm;對低泄漏低摩擦力水壓缸特性進(jìn)行了分析,基于Fluent仿真分析了水壓缸活塞與缸筒的間隙泄漏量的狀況,研究了相應(yīng)的密封技術(shù),在此基礎(chǔ)上進(jìn)行了水壓缸尺寸計(jì)算及結(jié)構(gòu)的設(shè)計(jì),建立了液壓缸的三維模型;基于Simulink軟件做了水壓缸系統(tǒng)的建模與仿真;最后,研制出純水液壓傳動缸的樣件,對水壓試驗(yàn)臺的閥體進(jìn)行了改裝設(shè)計(jì),結(jié)合水壓傳動實(shí)驗(yàn)臺對水壓缸的動靜態(tài)特性進(jìn)行了測量與分析,得出了被測缸的的測試曲線,分析了實(shí)驗(yàn)結(jié)果誤差及原因。通過分析被測缸的靜態(tài)實(shí)驗(yàn)曲線,結(jié)果表明研制的水壓缸達(dá)到了預(yù)期要求。
[Abstract]:With the rapid development of society, environmental pollution and energy reduction are becoming more and more serious. Pure water hydraulic transmission technology is a kind of green transmission technology which replaces the ordinary hydraulic oil with pure water. As we all know, pure water has the advantages of non-toxic, wide source, green sanitation, good flame retardancy and so on. Nowadays, many countries in the world are devoted to the research work of pure water hydraulic technology. The progress and development of hydraulic technology has become an important development trend in hydraulic field. Based on a large number of references at home and abroad, this paper discusses the research and development status of water pressure system and components at home and abroad, and puts forward the research direction and content of pure water hydraulic transmission cylinder. Through the analysis and research of pure water hydraulic transmission cylinder, it provides a certain basis for the design of hydraulic system and components. This paper comes from the theory and experimental research of the green hydraulic drive energy saving pressure control valve in Yunnan province science and technology project. In this paper, the tribological defects and corrosiveness of water medium in hydraulic transmission are analyzed, and the differences between hydraulic cylinder and hydraulic cylinder in material, seal, structure, friction force and overflow characteristic are analyzed. Combined with modern hydraulic technology and modern simulation technology, the research and design of pure water hydraulic transmission cylinder are carried out, and the key technical problems faced by water hydraulic transmission cylinder are analyzed. Firstly, the existing status of hydraulic cylinder components in hydraulic system is studied, and the key technical problems in the field of hydraulic cylinder are introduced. Secondly, by establishing the hydraulic cylinder system model, the leakage rate simulation of hydraulic cylinder system based on AMESim is done, and the influence of different clearance and different hydrodynamic viscosity coefficient on leakage is obtained in order to reduce leakage. The clearance height should be less than 0.01 mm. The characteristics of hydraulic cylinder with low leakage and low friction force are analyzed. Based on Fluent simulation, the condition of clearance leakage between piston and cylinder is analyzed, and the corresponding sealing technology is studied. On this basis, the size calculation and structure design of the hydraulic cylinder are carried out, and the three-dimensional model of the hydraulic cylinder is established. The modeling and simulation of the hydraulic cylinder system based on Simulink are done. Finally, the sample of the pure water hydraulic transmission cylinder is developed. In this paper, the valve body of the hydraulic test bench is modified. The static and static characteristics of the hydraulic cylinder are measured and analyzed in combination with the hydraulic transmission test bench. The test curve of the cylinder under test is obtained, and the error and reason of the experimental result are analyzed. By analyzing the static experimental curve of the cylinder under test, the results show that the developed hydraulic cylinder meets the expected 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】：2017
【分類號】：TH137.51

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