【摘要】：本文首先分析了不同結(jié)構(gòu)類型的等角速萬向聯(lián)軸器,比較各自的特點(diǎn);研究了三叉桿等角速萬向聯(lián)軸器的結(jié)構(gòu)特征。在單聯(lián)滑塊型三叉桿萬向聯(lián)軸器的運(yùn)動學(xué)分析中,給出其運(yùn)動學(xué)方程組,然后采用Matlab軟件進(jìn)行數(shù)值求解,考察聯(lián)軸器夾角、輸入軸的半徑和輸出軸的長度對其運(yùn)動學(xué)的影響,并繪制它的多個特征項目的曲線。通過分析得知:(1)三叉桿萬向聯(lián)軸器是一種等角速聯(lián)軸器;(2)輸入軸的半徑越小、輸出軸的長度越長和兩軸夾角越小,聯(lián)軸器的同步性就越好,運(yùn)動越平穩(wěn)。 其次,在雙聯(lián)滑塊型三叉桿等角速萬向聯(lián)軸器的運(yùn)動學(xué)分析中,分析了改進(jìn)前與改進(jìn)后的雙聯(lián)三叉桿等角速萬向聯(lián)軸器的結(jié)構(gòu)特點(diǎn),求解了兩種雙聯(lián)三叉桿等角速萬向聯(lián)軸器的自由度。重點(diǎn)研究改進(jìn)后的雙聯(lián)滑塊型三叉桿等角速萬向聯(lián)軸器的運(yùn)動學(xué);以方向余弦矩陣為數(shù)學(xué)工具,通過嚴(yán)謹(jǐn)?shù)臄?shù)學(xué)推導(dǎo),得出輸出軸采用自調(diào)心軸承安裝時,雙聯(lián)滑塊型三叉桿等角速萬向聯(lián)軸器的輸入軸與中間軸、中間軸與輸出軸以及輸入軸與輸出軸的運(yùn)動學(xué)方程表達(dá)式。結(jié)果表明雙聯(lián)滑塊型三叉桿萬向聯(lián)軸器也是一種等角速聯(lián)軸器。 最后,使用三維實體建模軟件Pro/E建立雙聯(lián)三叉桿等角速萬向聯(lián)軸器零件參數(shù)化模型,將此模型導(dǎo)入Pro/E運(yùn)動學(xué)模塊進(jìn)行仿真,對改進(jìn)前與改進(jìn)后的雙聯(lián)三叉桿等角速萬向聯(lián)軸器進(jìn)行運(yùn)動學(xué)仿真以及對有間隙時的雙聯(lián)三叉桿聯(lián)軸器進(jìn)行運(yùn)動仿真;并比較了改進(jìn)前與改進(jìn)后、有間隙和無間隙時的運(yùn)動學(xué)特性,得到了改進(jìn)后的無間隙雙聯(lián)滑塊型三叉桿萬向聯(lián)軸器的輸出軸與三叉桿的運(yùn)動更為穩(wěn)定的結(jié)果,進(jìn)一步驗證了雙聯(lián)三叉桿的等角速特性。 通過上述分析,在單聯(lián)三叉桿聯(lián)軸器理論的基礎(chǔ)上尋找到了研究雙聯(lián)三叉桿聯(lián)軸器新的理論方法,為雙聯(lián)三叉桿等角速萬向聯(lián)軸器的研究領(lǐng)域提供了良好的理論和實踐指導(dǎo)意義,從而為進(jìn)一步研究開發(fā)三叉桿等角速萬向聯(lián)軸器打下基礎(chǔ)。
[Abstract]:In this paper, different types of constant velocity universal couplings are analyzed and their characteristics are compared, and the structural characteristics of tripod constant speed universal couplings are studied. In the kinematics analysis of the single sliding bar universal coupling, the kinematics equations are given, and then solved numerically by Matlab software. The effects of the angle of the coupling, the radius of the input shaft and the length of the output shaft on the kinematics are investigated. And draws the curve of its many characteristic items. The results show that: (1) the tripod universal coupling is a constant angular speed coupling; (2) the smaller the radius of the input shaft, the longer the length of the output shaft and the smaller the angle between the two axes, the better the synchronicity of the coupling is and the more stable the movement is. Secondly, in the kinematics analysis of the double slider type tripod constant angular universal coupling, the structural characteristics of the modified and improved double tripod equal angular universal coupling are analyzed. The degrees of freedom of two kinds of double tripod constant velocity universal couplings are solved. The kinematics of the improved double slider tripod constant angular universal coupling is studied emphatically, and with the direction cosine matrix as the mathematical tool, through rigorous mathematical derivation, it is concluded that when the output shaft is installed with self-centering bearing, The kinematics equation expressions of input shaft and intermediate shaft, intermediate shaft and output shaft, input axis and output axis of the double slider type triple-bar constant angular universal coupling. The results show that the double sliding block universal coupling is also an equal angular speed coupling. Finally, the parametric model of the parts of the universal coupling is established by using the 3D solid modeling software Pro/E, and the model is imported into the Pro/E kinematics module for simulation. The kinematics simulation and kinematics simulation of the double joint trunked universal coupling before and after the improvement are carried out, and the kinematic simulation of the double tripod coupling with clearance is carried out, and the comparison between the improved and the improved universal coupling is given. The kinematics characteristics of the universal coupling with and without clearance are obtained, and the result that the output shaft of the improved universal coupling is more stable than that of the trinity bar is obtained, which further verifies the isometric velocity characteristics of the double tripod. Based on the above analysis, a new theoretical method for the study of double trinity rod coupling is found on the basis of the theory of single-link truss coupling. It provides a good theoretical and practical guidance for the research field of double tripod constant speed universal coupling, thus laying a foundation for further research and development of tripod constant angular universal coupling.
【學(xué)位授予單位】：青島科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH133.4

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 張禮增;三叉桿滑塊式萬向聯(lián)軸器虛擬設(shè)計平臺的開發(fā)研究[D];青島科技大學(xué);2012年

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本文編號：2282237