本文關(guān)鍵詞： 封閉差動(dòng) 行星傳動(dòng) 均載特性 齒圈柔性結(jié)構(gòu) 可靠性　出處：《湘潭大學(xué)》2014年博士論文　論文類(lèi)型：學(xué)位論文

【摘要】：封閉差動(dòng)行星齒輪傳動(dòng)因其良好的傳動(dòng)特點(diǎn)而被廣泛應(yīng)用于風(fēng)電、航空航天、汽車(chē)和礦山裝備等領(lǐng)域�？茖W(xué)技術(shù)的發(fā)展促進(jìn)了行星傳動(dòng)朝著“高、精、尖”的方向發(fā)展,對(duì)行星齒輪傳動(dòng)的研究不斷深入,新的結(jié)構(gòu)以及系統(tǒng)動(dòng)力學(xué)特性成為研究熱點(diǎn)。對(duì)封閉差動(dòng)行星齒輪箱而言,制造安裝等誤差不可避免地導(dǎo)致行星輪間載荷分配不均,對(duì)其動(dòng)態(tài)特性和可靠性有重要影響。因此如何均勻地分配載荷以及提高傳動(dòng)的可靠性一直是學(xué)者們研究的重要課題。本文針對(duì)封閉差動(dòng)行星齒輪箱制造安裝誤差具有的隨機(jī)性,采用Monte Carlo法對(duì)2.05MW風(fēng)力發(fā)電機(jī)組封閉差動(dòng)主增速箱進(jìn)行靜態(tài)和動(dòng)態(tài)均載性能的研究,并由理論分析和試驗(yàn)研究相互驗(yàn)證,提出了一種齒圈柔性均載結(jié)構(gòu),探討了封閉差動(dòng)行星系統(tǒng)的可靠性。本文的研究成果可以為封閉差動(dòng)行星傳動(dòng)實(shí)際應(yīng)用提供一定的技術(shù)指導(dǎo),對(duì)發(fā)展有效均載、高可靠性的封閉差動(dòng)行星傳動(dòng)具有重要的科學(xué)意義和工程應(yīng)用價(jià)值。本文共分為七章,各章節(jié)的主要研究?jī)?nèi)容如下：第一章闡述了本文的研究背景,圍繞行星齒輪傳動(dòng)靜態(tài)和動(dòng)態(tài)均載的研究,綜述了中心輪浮動(dòng)、柔性銷(xiāo)軸和柔性齒圈均載的研究現(xiàn)狀,總結(jié)了封閉差動(dòng)行星傳動(dòng)均載和可靠性的研究成果,概括了全文的研究?jī)?nèi)容及研究意義。第二章根據(jù)封閉差動(dòng)行星齒輪傳動(dòng)的特點(diǎn),針對(duì)制造安裝誤差具有的隨機(jī)性,運(yùn)用Monte Carlo方法建立了封閉差動(dòng)行星傳動(dòng)系統(tǒng)誤差隨機(jī)重復(fù)抽樣靜力學(xué)均載模型,探索封閉差動(dòng)級(jí)均載系數(shù)及太陽(yáng)輪浮動(dòng)量的概率分布,進(jìn)行了齒厚公差帶、偏心和安裝誤差帶對(duì)封閉級(jí)和差動(dòng)級(jí)均載系數(shù)及太陽(yáng)輪浮動(dòng)量分布的敏感性分析。第三章對(duì)同時(shí)具有太陽(yáng)輪浮動(dòng)、柔性銷(xiāo)軸和柔性?xún)?nèi)齒圈三種均載方法的封閉差動(dòng)行星傳動(dòng),運(yùn)用Monte Carlo法建立了傳動(dòng)系統(tǒng)重復(fù)隨機(jī)抽樣動(dòng)力學(xué)均載模型,研究了齒厚和偏心誤差帶對(duì)封閉級(jí)和差動(dòng)級(jí)動(dòng)態(tài)均載系數(shù)及太陽(yáng)輪浮動(dòng)量分布的影響,并同時(shí)對(duì)不均勻的行星輪載荷進(jìn)行統(tǒng)計(jì)。第四章以具有上述三種均載方法的2.05MW風(fēng)力發(fā)電機(jī)組封閉差動(dòng)行星齒輪箱為試驗(yàn)對(duì)象,探索多種均載措施的封閉差動(dòng)行星傳動(dòng)均載性能的特點(diǎn),根據(jù)應(yīng)變測(cè)試結(jié)果提出了均載系數(shù)的數(shù)據(jù)處理方法,研究了行星齒輪箱動(dòng)態(tài)均載系數(shù)隨工況載荷的變化趨勢(shì),分析統(tǒng)計(jì)了封閉級(jí)和差動(dòng)級(jí)不同載荷下的平均均載系數(shù)及其標(biāo)準(zhǔn)差。第五章針對(duì)柔性?xún)?nèi)齒圈過(guò)柔則輪齒失效,過(guò)剛則均載較差的問(wèn)題提出了一種改進(jìn)的齒圈柔性均載結(jié)構(gòu),建立了齒圈柔性均載結(jié)構(gòu)的零件和系統(tǒng)剛度模型。根據(jù)彈性開(kāi)口銷(xiāo)和螺栓的受力狀況分析了零件的應(yīng)力,以變形最大為目標(biāo)函數(shù),零件不失效為邊界條件對(duì)齒輪箱差動(dòng)級(jí)齒圈柔性結(jié)構(gòu)進(jìn)行優(yōu)化,采用有限元正交模擬試驗(yàn)優(yōu)化齒圈柔性均載結(jié)構(gòu)參數(shù),同時(shí)探究了各參數(shù)對(duì)系統(tǒng)柔性和零件應(yīng)力的影響。第六章根據(jù)應(yīng)力—強(qiáng)度分布干涉理論分別建立了行星傳動(dòng)系統(tǒng)重要零件的可靠度模型,基于行星傳動(dòng)是串并聯(lián)混合的混聯(lián)系統(tǒng)的特點(diǎn)和系統(tǒng)可靠性理論,推導(dǎo)出了封閉差動(dòng)行星傳動(dòng)的系統(tǒng)可靠性模型,對(duì)封閉差動(dòng)行星傳動(dòng)系統(tǒng)可靠度進(jìn)行了計(jì)算。第七章對(duì)本文的研究?jī)?nèi)容進(jìn)行了簡(jiǎn)要總結(jié),并對(duì)今后的研究工作進(jìn)行了展望。本文采用理論分析、試驗(yàn)研究以及數(shù)值模擬三種方法,對(duì)封閉差動(dòng)行星齒輪傳動(dòng)的均載特性進(jìn)行了研究,結(jié)果表明通過(guò)控制行星輪制造和安裝誤差帶,可以有效提高均載性能,本文提出的齒圈柔性均載結(jié)構(gòu)有助于提高齒圈柔度和均載性能,從而達(dá)到提高系統(tǒng)可靠性的目的。
[Abstract]:Closed differential planetary gear transmission because of its good transmission characteristics and has been widely used in wind power, aerospace, automotive and mining equipment. The development of science and technology to promote the planetary drive towards the "high, fine, sharp direction of planetary gear continuously, and the new structure system dynamics has become a research hotspot. The closed differential planetary gear box, manufacturing and installation error inevitably lead to uneven distribution of load between planet gears, have important influence on the dynamic characteristics and reliability. So how to evenly to load and improve the transmission reliability of loading has been an important topic for scholars. This paper closed the differential planetary gear box manufacturing installation error is random, using the Monte Carlo method of 2.05MW wind turbine gearbox closed differential static and dynamic load of The study, by theoretical analysis and experimental research of mutual authentication, proposed a flexible ring gear load sharing structure, discusses the reliability of closed differential planetary systems. The results of this study can provide some technical guidance for the practical application of closed differential planetary transmission, the development of effective load, high closed differential planetary transmission the reliability has important scientific significance and engineering application value. This paper is divided into seven chapters, the main contents of each chapter are as follows: the first chapter elaborates the research background, research on planetary gear transmission of static and dynamic load balancing, summarizes the research status of flexible floating center wheel, a pin shaft and a flexible ring gear are herein, summarizes the research results of closed differential planetary transmission load and reliability, summarizes the research content and significance of this research. In the second chapter, according to the characteristics of closed differential planetary gear transmission, According to the random error installation is made, using the Monte Carlo method to establish the closed differential planetary gear system with random errors are repeated sampling static load model, explore the probability distribution of closed differential stage load coefficient and the sun wheel floating momentum, the tooth thickness tolerance zone, eccentricity and installation error of closed and differential level load coefficient and the sun wheel floating momentum distribution of sensitivity analysis. In the third chapter also has a sun wheel floating, flexible pin and flexible ring gear three load sharing method of closed differential planetary transmission, the use of Monte Carlo transmission system were established repeated random sampling dynamic load model, the tooth thickness and eccentric error band the load sharing coefficient and the sun wheel floating momentum distribution effect on closed and differential stage and dynamic, the statistics of the uneven planetary wheel load. In the fourth chapter, with the above three kinds of load 2.05MW wind turbine method of closed differential planetary gear box as the test object, explore the characteristics of closed differential planetary gear carrier are various measures of load performance, according to the results of strain test method is introduced to deal with the load sharing of data, study the change trend of planetary gear box dynamic load sharing coefficient with load, statistical analysis. The average level and closed differential stage under different load load sharing coefficient and standard deviation. The fifth chapter for the flexible ring gear tooth failure is too soft, too just contained the problem of poor presents an improved flexible ring gear load structure, the rigidity model of components and systems are flexible ring gear carrier structure. According to the situation of stress analysis of the elastic pin and bolt stress, deformation by maximizing the objective function parts do not fail as the boundary condition for the gear box of differential gear ring of flexible structure Optimization, simulation optimization of flexible ring gear load structure parameters by using the finite element orthogonal, and explore the effect of various parameters on the system flexibility and stress parts. In the sixth chapter, according to the stress strength distribution reliability model of the important parts of the planetary transmission system is established respectively based on the theory of interference, planetary transmission is a series parallel hybrid hybrid theory characteristics and system reliability of the system, deduces the system reliability model of closed differential planetary transmission, the closed differential planetary transmission system reliability is calculated. The seventh chapter of the research contents of this thesis are briefly summarized, and the future research work is prospected in this paper. By theoretical analysis, three methods experimental study and numerical simulation on load characteristics of closed differential planetary gear transmission is studied, the results show that the control of the planetary gear manufacture and installation error, can In order to improve the load sharing performance effectively, the gear ring flexible load sharing structure proposed in this paper is helpful to improve the flexibility and load sharing performance of gear ring, so as to achieve the purpose of improving system reliability.

【學(xué)位授予單位】：湘潭大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TH132.41;TM315

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