本文選題：非正交面齒輪　切入點：點接觸　出處：《山東大學(xué)》2012年碩士論文

【摘要】：齒輪傳動是機械傳動中最重要的傳動形式之一,面齒輪傳動是一種新型齒輪傳動形式,它有許多獨特的優(yōu)點。在國外,面齒輪傳動技術(shù)的研究很早已經(jīng)受到專家和學(xué)者的重視,理論研究和應(yīng)用已經(jīng)全面深入,并成功應(yīng)用于直升機主減速器的分流裝置、無鏈?zhǔn)阶孕熊嚒⑨烎~卷線器傳動系統(tǒng)等很多領(lǐng)域。由于面齒輪傳動的軍事應(yīng)用背景,關(guān)于面齒輪的傳動技術(shù)國外對中國實行技術(shù)封鎖。在國內(nèi),面齒輪的研究起步較晚,技術(shù)相對落后,實際應(yīng)用較少。 非正交面齒輪是正交面齒輪傳動形式的延伸,由于非正交面齒輪特殊的齒而形式和傳動角度,其設(shè)計加工更加因難。本文以交角為45。的非正交面齒輪副為例,對非正交面齒輪傳動設(shè)計方法進(jìn)行了研究。 面齒輪齒面模型的生成原理目前主要有兩類,一類是通過幾何理論分析及推導(dǎo)得到嚙合方程,利用數(shù)值計算的方法得到而齒輪齒面上的離散點,最后通過插值的方法得到面齒輪齒面,該方法計算量較大,過程繁瑣。另一類是基于面齒輪插齒加工時與插齒刀的共軛原理,通過三維軟件提取面齒輪齒而曲線,進(jìn)而生成面齒輪齒面,該種造型方法計算量較小,過程簡單。本文基于上述第二類原理,重點研究了非正交面齒輪傳動設(shè)計方法。 本論文的主要研究內(nèi)容：以一對實際非正交而齒輪副為例,分析了面齒輪傳動特點,推導(dǎo)計算了避免產(chǎn)生根切和齒頂變尖的齒寬范國,推導(dǎo)了非正交面齒輪齒面方程；根據(jù)面齒輪點接觸理論,利用加工園柱齒輪的插齒刀加工非正交面齒輪的共軛關(guān)系,采用UGNX7.0提取了面齒輪上的一系列齒面曲線,對齒面曲線進(jìn)行離散取點,通過“依點云法”構(gòu)建非正交面齒輪的齒而模型,進(jìn)而生成非正交面齒輪的實體模型,,并通過數(shù)控加工的方法完成了非正交面齒輪副的加工,經(jīng)裝配和實際傳動實驗對上述非正交面齒輪設(shè)計方法進(jìn)行驗證。
[Abstract]:Gear transmission is one of the most important transmission forms in mechanical transmission. Surface gear transmission is a new type of gear transmission, which has many unique advantages. The theoretical research and application have been thoroughly studied and successfully applied in many fields, such as shunt device of helicopter main reducer, chain free bicycle, fishing coil drive system, etc. Due to the military application background of face gear transmission, The transmission technology of face gear is restricted to China by foreign countries. In our country, the research of face gear starts late, the technology is relatively backward, and the practical application is less. Non-orthogonal face gear is an extension of the transmission form of orthogonal face gear. Because of its special tooth form and transmission angle, the design and processing of non-orthogonal face gear is more difficult. This paper takes the non-orthogonal face gear pair with an intersection angle of 45 as an example. The design method of non-orthogonal face gear transmission is studied. At present, there are two kinds of generating principles of tooth surface model of surface gear. One is to obtain meshing equation by geometric theory analysis and derivation, and to obtain discrete points on gear tooth surface by numerical calculation. Finally, the tooth surface of surface gear is obtained by interpolation method, which has a large amount of calculation and complicated process. The other is based on the conjugate principle between surface gear shaper and gear shaper cutter, and the curve of surface gear tooth is extracted by 3D software. Then the tooth surface of the surface gear is generated. The method of modeling is simple and simple. Based on the principle of the second kind above, the design method of non-orthogonal face gear transmission is studied in this paper. The main research contents of this paper are as follows: taking a pair of actual non-orthogonal gear pairs as an example, the characteristics of face gear transmission are analyzed, the tooth width model of avoiding root cutting and tooth top sharpening is deduced, and the tooth surface equation of non-orthogonal face gear is deduced. According to the point contact theory of surface gear and the conjugate relation of machining non-orthogonal surface gear with gear shaper cutter of cylindrical gear, a series of tooth surface curves on surface gear are extracted by UGNX7.0, and the tooth surface curve is discretized. The tooth model of non-orthogonal face gear is constructed by "point cloud method", and then the solid model of non-orthogonal face gear is generated, and the machining of non-orthogonal face gear pair is accomplished by numerical control machining method. The above non-orthogonal gear design method is verified by assembly and actual transmission experiments.
【學(xué)位授予單位】：山東大學(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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