非正交面齿轮传动设计研究

发布时间：2018-03-23 10:45

本文选题：非正交面齿轮　切入点：点接触　出处：《山东大学》2012年硕士论文

【摘要】：齿轮传动是机械传动中最重要的传动形式之一,面齿轮传动是一种新型齿轮传动形式,它有许多独特的优点。在国外,面齿轮传动技术的研究很早已经受到专家和学者的重视,理论研究和应用已经全面深入,并成功应用于直升机主减速器的分流装置、无链式自行车、钓鱼卷线器传动系统等很多领域。由于面齿轮传动的军事应用背景,关于面齿轮的传动技术国外对中国实行技术封锁。在国内,面齿轮的研究起步较晚,技术相对落后,实际应用较少。非正交面齿轮是正交面齿轮传动形式的延伸,由于非正交面齿轮特殊的齿而形式和传动角度,其设计加工更加因难。本文以交角为45。的非正交面齿轮副为例,对非正交面齿轮传动设计方法进行了研究。面齿轮齿面模型的生成原理目前主要有两类,一类是通过几何理论分析及推导得到啮合方程,利用数值计算的方法得到而齿轮齿面上的离散点,最后通过插值的方法得到面齿轮齿面,该方法计算量较大,过程繁琐。另一类是基于面齿轮插齿加工时与插齿刀的共轭原理,通过三维软件提取面齿轮齿而曲线,进而生成面齿轮齿面,该种造型方法计算量较小,过程简单。本文基于上述第二类原理,重点研究了非正交面齿轮传动设计方法。本论文的主要研究内容：以一对实际非正交而齿轮副为例,分析了面齿轮传动特点,推导计算了避免产生根切和齿顶变尖的齿宽范国,推导了非正交面齿轮齿面方程；根据面齿轮点接触理论,利用加工园柱齿轮的插齿刀加工非正交面齿轮的共轭关系,采用UGNX7.0提取了面齿轮上的一系列齿面曲线,对齿面曲线进行离散取点,通过“依点云法”构建非正交面齿轮的齿而模型,进而生成非正交面齿轮的实体模型,,并通过数控加工的方法完成了非正交面齿轮副的加工,经装配和实际传动实验对上述非正交面齿轮设计方法进行验证。
[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.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.41

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