【摘要】：液壓傳動與控制技術(shù)是一種以液體為介質(zhì)，利用液體的壓力能來傳遞動力的工業(yè)控制技術(shù)。在液壓系統(tǒng)中，其“心臟”為動力元件泵，與其他容積式的各類泵相比，斜盤式軸向變量柱塞泵由于其體積小、效率高、結(jié)構(gòu)緊湊、容易實(shí)現(xiàn)無級調(diào)節(jié)等諸多優(yōu)點(diǎn)而廣泛地應(yīng)用各工業(yè)領(lǐng)域中�，F(xiàn)代工業(yè)的高速發(fā)展對軸向變量柱塞泵的性能要求越來越高。我國對柱塞泵的研究起步較晚，同時由于制造工藝上的限制，因此在對柱塞泵的研究與制造方面與美國，德國，日本等國家的先進(jìn)水平有一定的差距。在分析國內(nèi)外現(xiàn)狀基礎(chǔ)上，論文以斜盤式軸向柱塞泵為研究對象，從液壓系統(tǒng)的層次上對其進(jìn)行了理論分析與仿真研究。 主要內(nèi)容如下： 第一章，闡述了本課題發(fā)展趨勢和國內(nèi)外研究現(xiàn)狀以及研究的內(nèi)容和意義。 第二章，首先對圓柱形缸體和圓錐形缸體的斜盤式軸向柱塞泵的柱塞進(jìn)行了運(yùn)動學(xué)分析，分別得出了相同工況下兩種不同類型缸體柱塞的幾何運(yùn)動規(guī)律，缸體的傾角度對單柱塞瞬時流量脈動特性的影響，以及不同斜盤角度下流量脈動系數(shù)的變化規(guī)律。其次運(yùn)用力學(xué)基本原理對錐形缸體斜盤式柱塞泵的關(guān)鍵部件如中心加力彈簧、柱塞與滑靴的受力狀況進(jìn)行了較詳細(xì)分析，為后面章節(jié)中對錐形缸體斜盤式柱塞泵的動態(tài)研究提供了必要的理論依據(jù)和重要參考。 第三章，對斜盤式軸向柱塞泵整個系統(tǒng)進(jìn)行子系統(tǒng)劃分，然后從流量連續(xù)性方程，伯努力方程以及牛頓力學(xué)定理等出發(fā)，充分考慮軸向柱塞泵的泄漏，摩擦以及容積效應(yīng)，，對軸向柱塞泵各個子系統(tǒng)模塊進(jìn)行數(shù)學(xué)理論分析，建立子系統(tǒng)及斜盤式軸向柱塞泵的理論數(shù)學(xué)模型。 第四章，在理論數(shù)學(xué)模型的基礎(chǔ)上，建立斜盤式軸向柱塞泵的AMESim仿真模型，對其進(jìn)行動態(tài)仿真實(shí)驗(yàn)研究。論文主要對斜盤式軸向柱塞泵在壓力控制狀態(tài)，和壓力流量控制狀態(tài)下的脈動特性以及瞬態(tài)響應(yīng)特性進(jìn)行研究，著重研究了主要參數(shù)對脈動以及瞬態(tài)響應(yīng)的影響。 第五章，利用有限元軟件ANSYS-Workbench對斜盤式軸向柱塞泵中的主軸進(jìn)行模態(tài)分析和諧振分析，以避免徑向方向柱塞泵在工作中出現(xiàn)共振現(xiàn)象，完成泵軸諧振分析，得到交變載荷作用下泵軸的諧響應(yīng)規(guī)律。
[Abstract]:Hydraulic transmission and control technology is a kind of industrial control technology which uses liquid as medium and uses the pressure energy of liquid to transfer power. In hydraulic system, its "heart" is a power component pump. Compared with other kinds of displacement pumps, the oblique disc axial variable piston pump is compact because of its small volume, high efficiency and compact structure. Easy to realize stepless regulation and many other advantages and widely used in various industrial fields. With the rapid development of modern industry, the performance of axial variable piston pump is becoming more and more important. The research of piston pump in our country started late, and because of the limitation of manufacturing technology, there is a certain gap between the research and manufacture of piston pump and the advanced level of the United States, Germany, Japan and other countries. Based on the analysis of the present situation at home and abroad, the paper takes the oblique disc axial piston pump as the research object, carries on the theoretical analysis and the simulation research from the hydraulic system level. The main contents are as follows: in the first chapter, the development trend of this subject, the current research situation at home and abroad, and the content and significance of the research are described. In the second chapter, the kinematics of the plunger of the inclined disc axial piston pump of cylinder block and conical cylinder is analyzed, and the geometric motion laws of two different types of cylinder plunger under the same working condition are obtained respectively. The influence of the tilting angle of the cylinder block on the transient flow pulsation characteristics of a single plunger and the variation of the flow pulsation coefficient under different inclined disc angles. Secondly, the key components of the tapered cylinder inclined disc piston pump, such as the central force spring, the plunger and the sliding boots, are analyzed in detail by using the basic principles of mechanics. It provides the necessary theoretical basis and important reference for the dynamic research of the tapered cylinder oblique disc piston pump in the following chapters. In the third chapter, the whole system of oblique disc axial piston pump is divided into subsystems, and then the leakage, friction and volume effect of axial piston pump are fully considered from the flow continuity equation, Burroughs equation and Newtonian mechanics theorem. The mathematical models of each subsystem module of axial piston pump are analyzed and the theoretical models of the subsystem and the inclined disc axial piston pump are established. In chapter 4, based on the theoretical mathematical model, the AMESim simulation model of oblique disc axial piston pump is established, and the dynamic simulation experiment is carried out. In this paper, the pulsation characteristics and transient response characteristics of oblique disc axial piston pump under pressure control state and pressure flow control state are studied, and the influence of main parameters on pulsation and transient response is emphatically studied. In chapter 5, the modal analysis and resonance analysis of the spindle in the axial piston pump are carried out by using the finite element software ANSYS-Workbench, so as to avoid the resonance phenomenon in the work of the radial piston pump, and complete the resonance analysis of the shaft of the pump. The harmonic response of pump shaft under alternating load is obtained.
【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH322

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