基于齿轮系统啮合错位量的修形优化分析  

Modified Optimization Analysis based on Gear System Meshing Misalignment

作　　者：张鑫 刘欣荣 Zhang Xin;Liu Xinrong(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201620

出　　处：《机械传动》2022年第4期95-100,142,共7页Journal of Mechanical Transmission

摘　　要：综合考虑齿轮箱、轴系的支撑变形及齿轮传动热变形,计算得到齿轮啮合错位量。利用有限元软件对齿轮箱进行受力分析,同时对齿轮副进行承载接触分析,通过力学原理及有限元节点法计算齿轮轴节点位移;计算齿廓接触线热变形量,并通过有限元热弹耦合作用,分析热变形对齿轮齿面接触位移变化的影响;对齿轮进行修形优化并对比了其实验结果。结果表明,齿轮系统啮合错位量受其各部件变形的综合影响;利用齿轮修形优化,有助于减小齿轮系统啮合错位量,并可降低齿轮轴偏移量和齿轮传动误差幅值,提高齿轮传动的稳定性与可靠性。Considering the support deformation of the gearbox,shafting and the thermal deformation of gear transmission system,the amount of gear meshing misalignment is calculated.Force analysis of the gearbox is carried out by finite-element software,the contact analysis of gear pair is carried out,gear shaft displacement is calculated by mechanics principle and finite-element node method,the thermal deformation of the profile contact line is calculated,and the change of contact displacement of gear profile by finite-element thermoelastic coupling is analyzed.The gear is modified and optimized,the experimental results are compared.The results show that the gear system meshing dislocation is the comprehensive effect of the deformation of each part;the gear modification optimization can help to reduce the gear system meshing misalignment,the gear shaft offset and the gear transmission error,and improve the stability and reliability of gear transmission.

关 键 词：热变形 有限元节点法 热弹耦合 修形传动误差 

分 类 号：TH132.41[机械工程—机械制造及自动化]