非圆齿扇齿条副齿面接触应力分析及仿真  

Non-Circular Gear and Rack Contact Stress Analysis and Simulation

作　　者：丁国龙[1] 王亚涛 李天一 DING Guolong;WANG Yatao;LI Tianyi(Hubei Key Laboratory of Modern Manufacturing Quality Engineering,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]湖北工业大学现代制造质量工程湖北省重点实验室,武汉430068

出　　处：《组合机床与自动化加工技术》2024年第10期5-11,共7页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：湖北省技术创新专项项目(2019AAA069);湖北省重点研发计划项目(2022AAA004);湖北省科技重大专项项目(2023BAA010-3)。

摘　　要：针对汽车转向器摇臂轴非圆齿扇的工作齿面易发生磨损、点蚀甚至断裂等现象,围绕非圆齿扇齿条副的齿面接触应力理论建模与有限元仿真分析开展研究,提出一种非圆齿扇齿条副接触应力理论计算模型,研究齿扇齿宽B、齿条压力角α和齿扇锥角φ等几何参数对齿面接触应力的影响规律;将非圆齿扇齿条副三维参数化建模与齿面动态啮合有限元仿真分析集成,提出一种非圆齿扇齿条副接触应力参数化、全流程仿真分析计算方法。预期为汽车转向器非圆齿扇齿条副的设计分析提供理论和方法指导。Aiming at the phenomenon that the working tooth surface of the non-circular fan of the rocker arm shaft of automobile steering gear is prone to wear,pitting and even breaking,the theoretical modeling and finite element simulation of the contact stress of the tooth surface of the non-circular fan rack pair are studied.A theoretical calculation model for the contact stress of the non-circular rack and pinion pair is proposed,and the influence of geometrical parameters such as the width B of the rack,the pressure angleαof the rack and the cone angleφof the rack on the contact stress of the tooth surface is studied.By integrating the three-dimensional parametric modeling of the non-circular rack and pinion with the dynamic meshing finite element simulation analysis of the tooth surface,a parametric and whole-process simulation analysis method of the contact stress of the non-circular rack and pinion is proposed.It is expected to provide theoretical and methodical guidance for the design and analysis of the non-circular rack and pinion pair of automotive steering gear.

关 键 词：非圆齿扇齿条副 齿面接触应力 动态啮合仿真 

分 类 号：TH162[机械工程—机械制造及自动化] TG501[金属学及工艺—金属切削加工及机床]