Study on Allocation Method of Root Bending Stress based on Gear Tangential Modification

Cao Yaguang; Zhao Xiangfei; Li Xiuming

doi:10.16578/j.issn.1004.2539.2015.06.016

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Study on Allocation Method of Root Bending Stress based on Gear Tangential Modification

更新时间：2022-10-20

- Study on Allocation Method of Root Bending Stress based on Gear Tangential Modification
- Vol. 39, Issue 6, Pages: 46-48(2015)
- 作者机构：
  
  1. 江苏城市职业学院
  2. 机械科学研究总院
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2015.06.016
  CLC：
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[1]曹亚光,赵向飞,李秀明.基于齿轮切向变位分配齿根弯曲应力方法研究[J].机械传动,2015,39(06):46-48+79.

Cao Yaguang, Zhao Xiangfei, Li Xiuming. Study on Allocation Method of Root Bending Stress based on Gear Tangential Modification. [J]. 39(6):46-48(2015)
[1]曹亚光,赵向飞,李秀明.基于齿轮切向变位分配齿根弯曲应力方法研究[J].机械传动,2015,39(06):46-48+79. DOI： 10.16578/j.issn.1004.2539.2015.06.016.

Cao Yaguang, Zhao Xiangfei, Li Xiuming. Study on Allocation Method of Root Bending Stress based on Gear Tangential Modification. [J]. 39(6):46-48(2015) DOI： 10.16578/j.issn.1004.2539.2015.06.016.

摘要

齿轮是机械传动中重要的基础零部件,针对齿轮副传动中小齿轮轮齿薄弱最先发生弯曲疲劳断裂的情况,采用切向变位重新分配大小齿轮齿厚。在中心距和传动比不变的情况下,重新分配齿厚使小齿轮齿根弯曲应力降低,大齿轮齿根弯曲应力增加,从而使相互啮合齿轮的弯曲疲劳寿命近似相等。采用APDL语言对齿轮进行有限元建模,在单齿齿顶加载和啮合状态下进行弯曲应力分析,并与普通齿轮副设计进行比较,结果验证了切向变位重新分配齿根弯曲应力的准确,对解决工程上小齿轮断齿问题具有指导意义。

Abstract

Gear is an important part for mechanical transmission.For the case of bending fatigue fracture of pinion during the transmission,the gear tooth thickness is reassigned by tangential modification.The center distance and transmission ratio unchanged,the pinion root bending stress is reduced and the root bending stress of pinion is increased by the tooth thickness reallocation,leading to bending fatigue life of each gear approximately equal.The finite element modeling of gear is carried out by using APDL language,and the bending stress analysis is carried out at a single tooth top loading and meshing gear.Compared to ordinary gear,the results validate that the gear tooth thickness reassigned by tangential modification is accuracy,and it has guidance instructive to solve tooth broke problem of pinion in engineering.

关键词

齿轮切向变位弯曲应力疲劳寿命有限元

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