本文選題：電液比例軸向柱塞泵　切入點(diǎn)：雙向變量機(jī)構(gòu)　出處：《太原理工大學(xué)》2012年碩士論文

【摘要】：隨著現(xiàn)代工業(yè)的迅猛發(fā)展,對(duì)液壓系統(tǒng)的要求越來(lái)越高。系統(tǒng)向高壓大功率的方向發(fā)展,同時(shí)對(duì)系統(tǒng)的動(dòng)態(tài)性能以及噪聲問(wèn)題的要求也越來(lái)越高。液壓泵作為液壓系統(tǒng)的能源裝置,對(duì)其性能的要求也逐漸提高。而電液比例軸向變量柱塞泵由于具有結(jié)構(gòu)緊湊、節(jié)能,簡(jiǎn)化系統(tǒng)設(shè)計(jì)以及便于自動(dòng)控制等優(yōu)點(diǎn),已成為高壓、高效、大功率液壓系統(tǒng)的關(guān)鍵元件。 本文針對(duì)雙向電液比例變排量軸向柱塞泵的控制特性進(jìn)行研究,提出了基于變量活塞位置反饋的閉環(huán)排量控制方案,以達(dá)到泵在各種不同工況下的排量控制目的。在新的排量控制方案基礎(chǔ)上,通過(guò)泵的ADAMS的動(dòng)力學(xué)仿真分析得出斜盤的變量阻力矩,并利用SimulationX液壓仿真平臺(tái),對(duì)整個(gè)電液比例變排量軸向柱塞泵的排量控制特性進(jìn)行仿真研究,通過(guò)改變變量缸控制壓力和變量活塞直徑來(lái)分析其對(duì)控制特性的影響,合理的設(shè)計(jì)了泵的變量機(jī)構(gòu),為電液比例變排量軸向柱塞泵的設(shè)計(jì)和改進(jìn)提供了理論依據(jù)。 本文的主要研究工作如下： 1.介紹變量柱塞泵的基本概念和發(fā)展概況,簡(jiǎn)要說(shuō)明變量泵的各種控制方式,并對(duì)本文研究的雙向電液比例變排量泵的工作原理及控制特性作了詳細(xì)介紹,得出了排量控制主要與哪些因素有關(guān)。在控制過(guò)程中最大的干擾因素為斜盤的變量阻力矩,通過(guò)分析斜盤力矩得出影響柱塞泵控制特性的決定性因素即變量缸控制壓力和變量活塞直徑。 2.對(duì)斜盤的變量阻力矩進(jìn)行理論計(jì)算,為后續(xù)的仿真分析奠定理論基礎(chǔ)。 3.采用虛擬樣機(jī)技術(shù)對(duì)軸向柱塞泵進(jìn)行動(dòng)力學(xué)仿真,在Pro-E中建立變量柱塞泵的三維模型,后將模型導(dǎo)入ADAMS經(jīng)處理得到變量柱塞泵的動(dòng)力學(xué)模型。仿真分析在不同配流盤形式和不同工況下泵斜盤的變量阻力矩。 4.根據(jù)雙向電液比例變排量泵的變量工作原理,利用仿真軟件SimulationX建立了雙向電液比例排量控制泵的一維液壓系統(tǒng)模型和三維動(dòng)力學(xué)模型。通過(guò)對(duì)電液比例變排量軸向柱塞泵在不同工況下的排量控制特性進(jìn)行仿真,分析其排量控制特性。仿真分析影響控制特性的主要決定參數(shù)變量缸控制壓力和變量活塞直徑,提出了兩者合理的匹配方法和取值范圍,得出變量機(jī)構(gòu)合理的優(yōu)化設(shè)計(jì)方案以達(dá)到理想的控制特性。 5.總結(jié)論文研究成果,展望未來(lái)研究方向。
[Abstract]:With the rapid development of modern industry, the requirement of hydraulic system is higher and higher.With the development of high voltage and high power system, the dynamic performance and noise problem of the system are required more and more.Hydraulic pump as a hydraulic system energy device, its performance requirements are also gradually improved.The electro-hydraulic proportional axial variable piston pump has become the key component of high pressure, high efficiency and high power hydraulic system because of its compact structure, energy saving, simplified system design and easy automatic control.In this paper, the control characteristics of bidirectional electro-hydraulic proportional variable displacement axial piston pump are studied, and a closed loop displacement control scheme based on variable piston position feedback is proposed to achieve the purpose of pump displacement control under various working conditions.On the basis of the new displacement control scheme, the variable resistance moment of the inclined disk is obtained through the dynamic simulation analysis of the ADAMS of the pump, and the displacement control characteristics of the whole electro-hydraulic proportional variable displacement axial piston pump are simulated and studied by using the SimulationX hydraulic simulation platform.By changing the variable cylinder control pressure and the variable piston diameter to analyze its influence on the control characteristics, the variable mechanism of the pump is designed reasonably, which provides a theoretical basis for the design and improvement of the electro-hydraulic variable displacement axial piston pump.The main work of this paper is as follows:1.This paper introduces the basic concept and development of variable piston pump, briefly describes the various control methods of variable displacement pump, and introduces in detail the working principle and control characteristics of the bidirectional electro-hydraulic proportional variable displacement pump studied in this paper.The main factors related to emission control are obtained.The biggest disturbance factor in the control process is the variable resistance moment of the tilted disc. By analyzing the tilting disc torque, the decisive factors affecting the control characteristics of the piston pump are obtained, namely, the variable cylinder control pressure and the variable piston diameter.2.The theoretical calculation of the variable resistance moment of the skew disk is carried out, which lays a theoretical foundation for the subsequent simulation analysis.3.The dynamic simulation of axial piston pump is carried out by using virtual prototyping technology. The three-dimensional model of variable piston pump is established in Pro-E, and the dynamic model of variable piston pump is obtained by introducing the model into ADAMS.The variable resistance moment of the inclined disk of the pump is simulated and analyzed under different flow distribution and different working conditions.4.According to the variable working principle of bidirectional electro-hydraulic proportional displacement pump, the one-dimensional hydraulic system model and three-dimensional dynamic model of bidirectional electro-hydraulic proportional displacement control pump are established by using the simulation software SimulationX.The displacement control characteristics of electro-hydraulic proportional variable displacement axial piston pump under different working conditions were simulated and analyzed.The main determinants of variable cylinder control pressure and variable piston diameter are analyzed by simulation. The reasonable matching method and value range are put forward, and the optimal design scheme of variable mechanism is obtained to achieve the ideal control characteristics.5.Summarize the research results and look forward to the future research direction.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH322

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 李書澤;軸向柱塞泵斜盤力矩分析[J];柴油機(jī)設(shè)計(jì)與制造;2001年01期

2 徐國(guó)俊;;大容量軸向柱塞泵的變量機(jī)構(gòu)[J];鍛壓機(jī)械;1977年02期

3 那成烈,李書澤,那焱青;軸向柱塞泵配流盤對(duì)缸體液壓作用力矩的穩(wěn)定性分析[J];甘肅工業(yè)大學(xué)學(xué)報(bào);2001年03期

4 李新平,劉靜,張冬;機(jī)械反饋式比例泵變量特性分析與仿真[J];機(jī)床與液壓;2002年01期

5 劉寶生;;SimulationX多學(xué)科建模和仿真工具[J];CAD/CAM與制造業(yè)信息化;2009年09期

6 安高成;王明亮;劉小紅;王明智;;變量泵變量機(jī)構(gòu)的模塊化設(shè)計(jì)研究[J];太原科技大學(xué)學(xué)報(bào);2006年05期

7 朱鈺;;軸向變量柱塞泵斜盤力矩的研究[J];船海工程;2008年06期

8 黎文勇;王書翰;C.Obenaus;;基于SimulationX的斜盤柱塞泵的模擬仿真[J];液壓氣動(dòng)與密封;2010年08期

9 葛建華 ,沈之敏;斜盤式軸向柱塞泵變量阻力的研究[J];浙江大學(xué)學(xué)報(bào)(自然科學(xué)版);1988年S1期

相關(guān)會(huì)議論文 前1條

1 范政武;權(quán)龍;;位移—力反饋原理斜軸式變量柱塞泵特性研究[A];第五屆全國(guó)流體傳動(dòng)與控制學(xué)術(shù)會(huì)議暨2008年中國(guó)航空學(xué)會(huì)液壓與氣動(dòng)學(xué)術(shù)會(huì)議論文集[C];2008年

相關(guān)博士學(xué)位論文 前2條

1 鄧斌;水壓軸向柱塞泵的特性研究與分析[D];西南交通大學(xué);2004年

2 王國(guó)志;電液比例軸向變量柱塞泵的特性研究[D];西南交通大學(xué);2009年

相關(guān)碩士學(xué)位論文 前8條

1 楊陽(yáng);非對(duì)稱泵配流特性及其在挖掘機(jī)動(dòng)臂回路中的應(yīng)用[D];太原理工大學(xué);2011年

2 吳志明;位移—力反饋軸向變量柱塞泵控制特性研究[D];西南交通大學(xué);2011年

3 李婷婷;電液比例變量泵—馬達(dá)恒速控制系統(tǒng)的研究[D];長(zhǎng)安大學(xué);2004年

4 吳文海;電液比例變量柱塞泵的動(dòng)態(tài)仿真[D];西南交通大學(xué);2006年

5 黃鳴輝;軸向變量柱塞泵閉環(huán)控制特性研究[D];西南交通大學(xué);2007年

6 劉仙船;基于虛擬樣機(jī)的斜柱塞泵仿真研究[D];西南交通大學(xué);2010年

7 鐘偉旭;并聯(lián)式三油口軸向變量柱塞泵設(shè)計(jì)、建模與仿真研究[D];太原理工大學(xué);2010年

8 孫志慧;250mL/r新型徑向柱塞泵泵體結(jié)構(gòu)優(yōu)化[D];太原科技大學(xué);2010年

，

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