基于LTCA的弧齿锥齿轮修形技术研究

发布时间：2018-05-02 15:02

本文选题：弧齿锥齿轮 + 参数化建模　；参考：《合肥工业大学》2013年硕士论文

【摘要】：弧齿锥齿轮由于其传动平稳、噪声小、承载能力高等优点被广泛应用在航空、汽车等行业中,主要的传动方式有相交或相错,其性能的优劣直接影响着传动系统的性能。随着现代工业的发展,汽车、工程机械、直升飞机等对弧齿锥齿轮的要求愈来愈高,尤其表现在承载能力和传动误差等方面。本文围绕弧齿锥齿轮的传动啮合特性,重点针对齿轮承载接触能力以及接触迹等问题进行深入的探讨和研究。通过研究弧齿锥齿轮齿形形成原理,啮合理论,实现参数化设计与三维建模,获得了参数化建模软件；分析了齿轮接触分析和承载接触分析方法,就接触问题的求解方法方面对赫兹接触理论及接触算法进行了概述,重点探讨了ANSYS中的接触算法问题,并以此为依托,在ANSYS workbench中对弧齿锥齿轮进行轮齿的承载接触问题进行深入的研究分析,获得了弧齿锥齿轮的接触迹；针对弧齿锥齿轮的轮齿承载接触分析结果,对其进行齿廓修形理论的分析研究,确立了齿廓修形的最大修形量、修形长度以及修形曲线,建立了修形弧齿锥齿轮实体几何模型,并进行修形后的齿轮承载接触分析,分析结果表明,修形后接触迹得到了有效的改善,而且大大的提高了接触强度,从而为弧齿锥齿轮的齿廓修形的研究和实践提供了有效的理论依据。
[Abstract]:Arc bevel gear is widely used in aviation, automobile and other industries because of its stable transmission, low noise and high bearing capacity. The main transmission modes are intersection or mismatch, and the performance of the gear directly affects the performance of the transmission system. With the development of modern industry, the requirements for spiral bevel gears, such as automobiles, construction machinery and helicopters, are becoming more and more high, especially in the aspects of bearing capacity and transmission error. Focusing on the meshing characteristics of spiral bevel gears, this paper focuses on the bearing capacity and contact trace of gears. The parametric design and 3D modeling are realized by studying the forming principle and meshing theory of spiral bevel gear, and the parameterized modeling software is obtained, and the methods of gear contact analysis and bearing contact analysis are analyzed. In this paper, the Hertz contact theory and contact algorithm are summarized, and the contact algorithm in ANSYS is discussed. In ANSYS workbench, the tooth bearing contact of arc bevel gear is studied and analyzed, and the contact trace of arc bevel gear is obtained, and the results of tooth bearing contact analysis of arc bevel gear are analyzed. Based on the analysis of tooth profile modification theory, the maximum modification quantity, modification length and profile curve of tooth profile modification are established, and the solid geometric model of modified arc bevel gear is established, and the load bearing contact analysis of modified gear is carried out. The results show that the contact track has been improved effectively and the contact strength has been greatly improved after modification, which provides an effective theoretical basis for the research and practice of tooth profile modification of spiral bevel gear.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TH132.41

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