变位斜齿轮静力学分析和修形研究

 李学志,陈蒙,陈绍康,张笑天

(新疆大学科学技术学院 机电工程系,新疆 阿克苏 843100)
摘要:针对斜齿轮啮合更替过程受到载荷突变影响,引起齿面疲劳点蚀和冲击的问题,对斜齿轮静力学接触和修形进行了分析研究。首先利用Pro/E建立了三维实体模型,并基于重合度公式验证齿轮啮合的准确性,得到了斜齿轮啮合的变化规律;其次应用ANSYS Workbench静力学分析模块建立了斜齿轮的有限元模型,得到了斜齿轮啮入啮出时的应力分布图;最后采用圆弧修形的方法,得到了修形前后的应力结果。研究结果表明,在满足接触强度的条件下,较少的修形量可以达到修形的要求,可为斜齿轮瞬态动力学分析提供依据。
关键词:载荷突变;静力学;ANSYS Workbench;应力;修形量
中图分类号:TV311 文献标志码:A doi:10.3969/j.issn.1006-0316.2019.01.003
文章编号:1006-0316 (2019) 01-0012-05
Statics Analysis and Modification Research of Profile Modified Helical Gears
LI Xuezhi,CHEN Meng,CHEN Shaokang,ZHANG Xiaotian
( Department of Mechanical and Electrical Engineering, Xinjiang University Institute of Science and Technology, Akesu 843100, China )
Abstract: This paper aims to analyze the problem of the helical gear meshing affected by transilience loads which lead to gear surface fatigue pitting and shock. The research on statics contact of gear and modification were carried out. The 3D solid model was built by Pro/E. The accuracy of gear meshing was verified based on contact ratio formula, and the variation of helical gear meshing were obtained. By using ANSYS Workbench static analysis, the finite element model of helical gears is established, and the stress distribution diagram of helical gears meshing is obtained. Finally, the results of stress before and after the modification were obtained based on the arc modification method. The results indicate that under the condition of reasonable contact strength, the less modification quantity can meet the requirement, which provides the effective basis for helical gear dynamics analysis.
Key words:transilience load;statics;ANSYS Workbench;stress;modification quantity
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收稿日期:2018-03-19
作者简介:李学志(1986-),男,山东淄博人,硕士研究生,讲师,主要研究方向为机械设计及理论。
 

 

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