有限元分析法改善齿根磨削凸台应力分布研究  

Study on Improving Stress Distribution of Root Grinding Platform by Finite Element Analysis

作　　者：郑捷 张申林 吕和生 李勇 黄光磊 ZHENG Jie;ZHANG Shen-Lin;LYU He-sheng;LI Yong;HUANG Guang-Lei(Technical Department of Wind Power Division of Chongqing Gearbox Co.,Ltd,chongqing 402260,China)

机构地区：[1]重庆齿轮箱有限责任公司,重庆402260

出　　处：《机械研究与应用》2024年第6期19-22,共4页Mechanical Research & Application

基　　金：国家重点研发计划项目:深海齿轮传动系统抗疲劳制造工艺与数字化装配技术(编号:2023YFB3406303)。

摘　　要：通过齿轮理论模型,针对渗碳淬火热处理引起的变形问题,模拟齿轮齿形在磨齿机上的磨削结果,并进行分类建模;利用UG NX12有限元软件分析齿根弯曲应力,寻找其差异与规律,并与国家标准中相关规定及公式进行对比;建立一种虚拟齿根圆弧模型,综合齿轮开齿齿根圆弧与磨削圆弧的模型与理论,尝试推导与标准中齿根有磨削台阶齿轮的应力修正系数部分的差异,找出齿根圆弧与应力的对应关系及降低齿根应力的方法。In this paper,based on the gear theoretical model,the grinding results on the gear profile grinding machine are simulated according to the carburizing and quenching heat treatment deformation,and the type modeling is conducted.The root bending stress is analyzed by using the UG NX12 finite element analysis to find out the differences and rules,then they are compared with the relevant provisions and formulas in the national standards,and a kind of virtual tooth root arc is established.The model and theory of tooth root circular arc and grinding circular arc of synthetic gear are derived tentatively from the difference between the stress correction coefficient of gear with grinding step in the standard,the corresponding relationship between tooth root circular arc and stress is found out,and the method of reducing the tooth root stress is also given.

关 键 词：齿轮 齿根弯曲应力 磨削圆弧 危险截面 

分 类 号：V232.8[航空宇航科学与技术—航空宇航推进理论与工程]