【摘要】：水液壓技術(shù)以其在環(huán)境保護(hù)、阻燃性好等方面的優(yōu)點(diǎn)，逐漸引起了人類關(guān)注，世界各工業(yè)發(fā)達(dá)國家都在水液壓系統(tǒng)、元件方面進(jìn)行了研究，并有產(chǎn)品應(yīng)用在實(shí)際當(dāng)中。我國自上世紀(jì)九十年代才開始海(淡)水液壓技術(shù)的研究，，起步較晚，對(duì)于水液壓元件與系統(tǒng)的研究仍處于基礎(chǔ)階段，但國內(nèi)一些高校如華中科技大學(xué)、浙江大學(xué)、北京理工大學(xué)、西安交通大學(xué)等對(duì)于水液壓技術(shù)的研究取得了不錯(cuò)的進(jìn)展。 海(淡)水的運(yùn)動(dòng)粘度大約為礦物型液壓油的1/30，電導(dǎo)率是液壓油的1000倍，水的泄漏量遠(yuǎn)比液壓油大，電化學(xué)腐蝕性比液壓油強(qiáng)，因此采用海(淡)水作為液壓傳動(dòng)的介質(zhì)面臨磨損腐蝕嚴(yán)重、泄漏量大、氣蝕等問題，這是制約水液壓技術(shù)發(fā)展的原因。隨著材料學(xué)、加工制造學(xué)、計(jì)算機(jī)仿真學(xué)的發(fā)展，為水液壓技術(shù)的研究提供了條件。水液壓軸向柱塞泵、水液壓軸向柱塞馬達(dá)、水液壓葉片馬達(dá)、水液壓測試系統(tǒng)等在實(shí)踐中得到廣泛應(yīng)用。 本文主要研究徑向柱塞低速大扭矩內(nèi)曲線水液壓馬達(dá)，在此以前水液壓馬達(dá)的研究主要在軸向柱塞液壓馬達(dá)、葉片馬達(dá)方面，因此本馬達(dá)的設(shè)計(jì)為國內(nèi)的水液壓元件的研究填補(bǔ)了空白。本文研究的主要內(nèi)容有：首先，運(yùn)用運(yùn)動(dòng)學(xué)觀點(diǎn)采用Matlab編程繪制內(nèi)曲線馬達(dá)的定子曲線，并分析影響曲線的重要因素，選取最佳曲線；在選取曲線的基礎(chǔ)上，運(yùn)用Matlab編程進(jìn)行柱塞組運(yùn)動(dòng)學(xué)和受力分析，得出滾動(dòng)體與定子的接觸應(yīng)力隨幅角的變化規(guī)律；用理論分析與數(shù)值模擬方法(CFD)對(duì)柱塞與缸體間縫隙的泄漏量進(jìn)行分析得出結(jié)論；用彈性動(dòng)力潤滑理論對(duì)滾動(dòng)體與定子間的最小水膜、油膜厚度值進(jìn)行了分析對(duì)比。
[Abstract]:Water hydraulic technology has gradually attracted human attention because of its advantages in environmental protection and good flame retardancy. All industrial developed countries in the world have carried out research in water hydraulic system and components, and some products have been applied in practice. The research of sea (light) water hydraulic technology has only begun in China since the 1990s, and the research on water hydraulic components and systems is still in the basic stage. However, some colleges and universities in China, such as Huazhong University of Science and Technology, Zhejiang University, Beijing Institute of Technology, Xi'an Jiaotong University and so on, have made good progress in the research of water hydraulic technology. The kinematic viscosity of sea (light) water is about 1 脳 30 of that of mineral hydraulic oil, the conductivity is 1000 times of that of hydraulic oil, the leakage of water is much larger than that of hydraulic oil, and the electrochemical corrosion is stronger than that of hydraulic oil. Therefore, the use of sea (light) water as the medium of hydraulic transmission is faced with serious wear and corrosion, large leakage, cavitation erosion and so on, which is the reason that restricts the development of water hydraulic technology. With the development of material science, processing manufacturing science and computer simulation, it provides conditions for the research of water hydraulic technology. Water hydraulic axial piston pump, water hydraulic axial plunger motor, water hydraulic vane motor, water hydraulic test system and so on have been widely used in practice. This paper mainly studies the low speed and high torque water hydraulic motor of radial plunger. Before this, the research of water hydraulic motor is mainly in the aspects of axial plunger hydraulic motor and blade motor, so the design of this motor fills in the blank for the research of domestic water hydraulic components. The main contents of this paper are as follows: firstly, the stator curve of the inner curve motor is drawn by Matlab programming from the kinematic point of view, and the important factors affecting the curve are analyzed, and the best curve is selected. On the basis of selecting the curve, the kinematic and force analysis of the plunger group is carried out by using Matlab programming, and the variation law of the contact stress between the roller and the stator with the angle of amplitude is obtained. The theoretical analysis and numerical simulation method (CFD) are used to analyze the leakage of the gap between plunger and cylinder block, and the minimum water film and oil film thickness between roller and stator are analyzed and compared with the theory of elastic dynamic lubrication.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH137.51

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