發(fā)布時間：2018-08-12 10:33

【摘要】：齒輪傳動是機械傳動中最主要的一類,型式很多,應(yīng)用廣泛,齒輪設(shè)計在機械設(shè)計中占據(jù)著相當重要的地位,但它的設(shè)計步驟多、涉及參數(shù)多,需查詢的圖表總數(shù)有二十多個,給設(shè)計工作者帶來很多的不便,降低了設(shè)計效率。隨著計算機輔助設(shè)計與制造(CAD/CAM)技術(shù)的發(fā)展,在產(chǎn)品開發(fā)的過程中,有限元分析、裝配設(shè)計、運動仿真、數(shù)控加工等都必須以三維模型為基礎(chǔ)。在進行齒輪機構(gòu)設(shè)計時,經(jīng)常需要利用CAD技術(shù)設(shè)計并建立齒輪的三維實體模型,從而利用CAD/CAM軟件進行裝配、檢測和分析。 本文闡述了圓柱齒輪機構(gòu)的傳動特點,論述了漸開線和過渡曲線的方程推導(dǎo)及其參數(shù)的確定,闡明了少齒數(shù)漸開線圓柱齒輪機構(gòu)機構(gòu)學(xué)的理論基礎(chǔ)。齒輪的參數(shù)化設(shè)計是提高齒輪建模效率的有效途徑,基于Pro/EWildfire4.0平臺的參數(shù)化精確建模功能,本論文通過編Pro/E的模型程序,實現(xiàn)了方便而精確建模的同時,完成了漸開線直齒、斜齒輪的參數(shù)化建模,少齒數(shù)齒輪自動化建模設(shè)計,并且實現(xiàn)齒輪基本參數(shù)的改變自動生成新齒輪。同時加以實例應(yīng)用。該齒輪設(shè)計方法可使設(shè)計人員方便快捷地實現(xiàn)齒輪的三維特征造型設(shè)計,從而提高設(shè)計效率。
[Abstract]:Gear transmission is the most important type of mechanical transmission, with many types and wide applications. Gear design occupies a very important position in mechanical design, but it has many design steps and many parameters, and the total number of charts to be queried is more than twenty. It brings a lot of inconvenience to the designers and reduces the design efficiency. With the development of computer aided Design and Manufacturing (CAD/CAM) technology, in the process of product development, finite element analysis, assembly design, motion simulation and NC machining must be based on 3D model. In the design of gear mechanism, it is often necessary to design and establish the three-dimensional solid model of gear by using CAD technology, so as to assemble, detect and analyze the gear by using CAD/CAM software. In this paper, the transmission characteristics of cylindrical gear mechanism are expounded, the equation derivation of involute and transition curve and the determination of its parameters are discussed, and the theoretical basis of the mechanism of involute cylindrical gear with less teeth is expounded. The parameterized design of gear is an effective way to improve the efficiency of gear modeling. Based on the parameterized accurate modeling function of Pro/EWildfire4.0 platform, this paper realizes the convenient and accurate modeling of involute teeth by making up the model program of Pro/E. Parametric modeling of helical gears, automatic modeling and design of gear with less teeth, and automatic generation of new gears by changing the basic parameters of gears. At the same time, an example is applied. The gear design method can make the designers realize the 3D feature modeling design of gears conveniently and quickly, thus improving the design efficiency.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH132.41

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