齿面均匀腐蚀后顶隙系数对面齿轮弯曲应力的影响  

Influence of Top Clearance Coefficient on Bending Strength of Opposite Gear after Uniform Corrosion of Tooth Surface

作　　者：臧少峰 刘忠亮 胡锡文 王娟 李晓贞 ZANG Shaofeng;LIU Zhongliang;HU Xiwen;WANG Juan;LI Xiaozhen(China Nuclear Power Engineering Co.Ltd.,Beijing 100840,China;College of Mechanical Engineering,Anhui Science and Technology University,Fengyang 233100,China)

机构地区：[1]中国核电工程有限公司,北京100840 [2]安徽科技学院机械工程学院,安徽凤阳233100

出　　处：《安徽科技学院学报》2021年第6期89-98,共10页Journal of Anhui Science and Technology University

基　　金：安徽省自然科学基金面上项目(2108085ME167);安徽省教育厅自然科学重点项目(KJ2020A0073);安徽省重点研究与开发计划项目(201904a05020005);安徽省科技重大专项(201903a02050014);泰州市双创计划企业创新类资助项目。

摘　　要：目的:分析乏燃料溶解器中强腐蚀性环境对面齿轮齿面产生的均匀腐蚀所引起的面齿轮弯曲应力的变化。方法:首先通过包络法推导正交面齿轮齿面方程,得到面齿轮与圆柱齿轮实体模型和装配体模型,然后采用调整装配体Cp值的大小来模拟齿轮齿面均匀腐蚀程度,最后利用ANSYS对不同腐蚀程度下的正交面齿轮副模型进行有限元分析。结果:在同一转速和负载的工况下,面齿轮弯曲应力由72.36 MPa逐渐增加到270.74 MPa,接触应力由84.94 MPa逐渐增加到379.21 MPa。结论:随着腐蚀程度加深,弯曲应力和接触应力逐渐增大,圆柱齿轮与正交面齿轮啮合点位置会向齿顶以及面齿轮内半径方向偏移,当达到一定程度会产生应力集中,破坏轮齿,导致传动无法正常进行。Objective: To analyze the uniform corrosion of the face gear tooth surface produced by the strong corrosive environment in the spent fuel dissolver, and thus the changes in the bending stress of the face gear. Methods: The orthogonal face gear tooth equations were derived by the envelope method to obtain the face gear and cylindrical gear solid model and assembly model, then, the size of the assembly Cp value was used to adjust the size of the assembly to simulate the uniform corrosion degree of the face gear tooth surface, and finally, the finite element analysis of the orthogonal face gear sub-model under different corrosion degrees was performed by ANSYS. Results: Under the same speed and load conditions, the face gear bending stress gradually increased from 72.36 MPa to 270.74 MPa, and the contact stress gradually increased from 84.94 MPa to 379.21 MPa. Conclusion: With the deepening of corrosion, the bending stress and contact stress gradually increased, the position of the cylindrical gear and orthogonal face gear meshing point will be shifted to the tooth top and the face gear inner radius direction. When a certain degree will produce stress concentration, damage the gear teeth, resulting in the transmission can not be carried out normally.

关 键 词：正交面齿轮 齿面腐蚀 弯曲应力 

分 类 号：TH132.41[机械工程—机械制造及自动化]