考虑边缘接触的弧齿锥齿轮有限元接触分析

发布时间：2018-04-28 05:44

本文选题：弧齿锥齿轮 + 边缘接触　；参考：《西安交通大学学报》2016年11期

【摘要】：针对弧齿锥齿轮轻质重载的特点,利用有限元方法的批处理功能进行了考虑边缘接触的轮齿接触分析,定量讨论了边缘接触随载荷增加时的变化规律。根据考虑边缘接触的几何接触分析,将齿轮从进入啮合到退出啮合分成若干步进行计算,每一步的计算结果连接起来用于描述整个啮合的过程。以一对弧齿锥齿轮为例,经过不同载荷条件下考虑边缘接触的定量分析,提取出接触应力、接触印痕、接触路径,并与几何接触分析和承载接触分析结果进行了对比,三者吻合度较好。对比结果证明,通过有限元法分析可以较精确地确定齿轮发生边缘接触时的载荷临界值及边缘接触位置,得出边缘接触会导致接触应力急剧增大、接触路径延长、接触区域面积变大的结果,通过定量计算、比较各项参数指标得出变化规律。
[Abstract]:In view of the characteristics of the light heavy load of the spiral bevel gear, the tooth contact analysis of the edge contact is carried out by the batch processing of the finite element method. The change law of the edge contact with the load is discussed quantitatively. According to the geometric contact analysis considering the edge contact, the gear is divided into several steps from entering the meshing to the exit mesh. Calculation, the results of each step are connected to describe the process of the whole meshing. Taking a pair of arc tooth bevel gear as an example, the contact stress, contact mark and contact path are extracted by considering the quantitative analysis of the edge contact under different load conditions, and compared with the results of geometric contact analysis and bearing contact analysis, the three anastomosis degrees are compared. The comparison results show that the critical value of the load and the contact position of the edge can be accurately determined by the finite element method. It is concluded that the contact stress increases sharply, the contact path is lengthened and the area of the contact area becomes larger, and the parameters of the contact can be compared by quantitative calculation. Change the law.

【作者单位】：西北工业大学机电学院;
【基金】：国家自然科学基金资助项目(51175423;51375384)
【分类号】：V229

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