轧机人字齿轮接触疲劳强度分析及设计校核软件的开发

发布时间：2018-07-12 11:40

本文选题：人字齿轮 + 参数化　；参考：《山东大学》2017年硕士论文

【摘要】：铝及其合金因其优良的综合性能,在机械制造、包装、交通运输、电子电气、航空航天等领域得到广泛的应用。热轧作为厚板、中厚板的主要塑性成形加工方式对传动齿轮的承载能力和平稳性有很高的要求。本文以某铝业公司的热轧减速机人字齿轮作为主要研究对象。首先,通过Pro/e建立铝板热轧减速人字齿轮的参数化三维模型,经参数化后,可以直接输入人字齿轮参数生成相应系列齿轮,提高齿轮的设计效率。根据人字齿轮啮合条件实现齿轮的精确装配,为后续接触疲劳强度分析奠定基础。其次,对轮齿接触的基础理论进行了研究。在理论研究的基础上,将人字齿轮简化模型导入Workbench15.0分析软件中。之后,对齿轮啮合区进行接触应力分析:划分网格,设置约束条件,施加载荷,计算得到应力云图,将应力云图中的最大接触应力与传统赫兹接触应力计算公式求得的结果相比较,为齿轮设计提供依据。并以齿轮接触疲劳强度为目标函数,对齿轮的参数进行优化设计,在不改变体积的前提下,进而提高齿轮的承载能力。最后,利用Pro/E自带的二次开发模块Pro/Toolkit和VS2008编译环境设计"人字齿轮建模和接触应力校核"软件,将齿轮参数化造型和齿轮接触强度校核结合到一起,简化了传统设计过程中输入参数、强度校核、调整参数、重新校核的反复过程。将开发的应用程序直接用于人字齿轮的三维造型,可实现人字齿轮的快速设计及校核。
[Abstract]:Aluminum and its alloys have been widely used in mechanical manufacturing, packaging, transportation, electronics, aerospace and other fields due to their excellent comprehensive properties. Hot rolling as a thick plate, the main plastic forming process of plate has high requirements for the bearing capacity and smoothness of transmission gear. The main research object of this paper is the herringbone gear of a hot-rolling reducer in an aluminum company. Firstly, the parameterized 3D model of the reduced-speed herringbone gear for aluminum plate hot rolling is established by Pro-e. After parameterization, the parameters of the herringbone gear can be directly input to generate the corresponding series gear, and the design efficiency of the gear can be improved. According to the meshing condition of herringbone gear, the precise assembly of gear is realized, which lays a foundation for the subsequent contact fatigue strength analysis. Secondly, the basic theory of gear tooth contact is studied. On the basis of theoretical research, the simplified model of herringbone gear is imported into Workbench 15.0 analysis software. After that, the contact stress analysis of the gear meshing zone is carried out. The mesh is divided, the constraint condition is set, the load is applied, and the stress cloud diagram is calculated. The maximum contact stress in the stress cloud diagram is compared with the results obtained from the traditional Hertz contact stress formula, which provides the basis for gear design. With the contact fatigue strength as the objective function, the gear parameters are optimized and the bearing capacity of the gear is improved without changing the volume. Finally, using Prop / Toolkit and VS2008 compiler environment, we design the software of "Gear Modeling and contact stress checking", which combines gear parameterized modeling with gear contact strength checking. It simplifies the repeated process of input parameters, intensity checking, adjusting parameters and rechecking in the traditional design process. The developed application program is directly used in the 3D modeling of herringbone gears, which can realize the rapid design and checking of herringbone gears.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG333

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