高重合度直齿轮刚度及最大载荷分担率的影响分析  

Influence Analysis of Stiffness and Maximum Load-Sharing Ratio of High Coincidence Spur Gear

作　　者：范士超 李发家[1] 崔焕勇[1] 吴伟 张少运 Fan Shichao;Li Fajia;Cui Huanyong;Wu Wei;Zhang Shaoyun(School of Mechanical Engineering,University of Jinan,Shangdong Jinan 250022;Shandong MENWO Transmission Limited Company,Shangdong Linyi 276000)

机构地区：[1]济南大学机械工程学院,山东济南250022 [2]山东蒙沃变速器有限公司,山东临沂276000

出　　处：《汽车实用技术》2021年第4期111-115,共5页Automobile Applied Technology

基　　金：山东省重点研发计划2019GGX104028;国家青年基金51605191。

摘　　要：针对高重合度外啮合齿轮,在考虑轮齿弹性变形的前提下,研究了外啮合高重合度外啮合渐开线直齿圆柱齿轮副的轮齿变形、刚度及最大载荷分担率在轮齿参数变化时的变化规律。研究表明:在给定参数变化范围内,单对齿刚度最大值随齿顶高系数的增大减少9.5%,随压力角的增大增加44.1%,随齿数的增多增加8.1%,随变位系数的增大增加29.2%;在给定高重合度参数变化区间内,多齿啮合刚度的最大值随齿顶高系数的增大减少6.8%,随压力角的增大增加22.7%,随齿数的增多增加12.1%,随变位系数的增大增加8.5%;在给定高重合度参数变化区间内,最大载荷分担率随齿顶高系数的增大从60.45%近似线性减小到57.88%,最大载荷分担率随压力角的增大从53.27%近似线性减小到61.41%,最大载荷分担率随齿数的增多从59.56%近似反比例曲线降低到56.00%,最大载荷分担率随变位系数的增大从52.41%近似线性增大到61.19%。Under the premise of considering the elastic deformation of gear teeth,the variation rule of tooth deformation,stiffness and maximum load sharing rate of HCR involute spur gear was studied when tooth parameters change.Within a given parameter range,the maximum stiffness of single pair of teeth decreased by 9.5%with the increase of the addendum coefficient,increased by 44.1%with the increase of the pressure angle,increased by 8.1%with the increase of the number of teeth,and increased by 29.2%with the increase of the modification coefficient.Within a given parameter range of high contact ratio,the maximum mesh stiffness of multiple teeth decreased by 6.8%with the increase of the addendum coefficient,increased by 22.7%with the increase of the pressure angle,increased by 12.1%with the increase of the number of teeth,increased by 8.5%with the increase of the modification coefficient,Within a given parameter range of high contact ratio,maximum load share ratio increases with the addendum coefficient approximate linear decrease from 60.45%to 57.88%,with the increase of pressure angle approximate linear decrease from 53.27 to 61.41,with the increasing of the number of teeth approximate inverse curve is reduced to 56.00%from 59.56%,with the increase of modification coefficient approximate linear increase from 52.41%to 61.19%.

关 键 词：高重合度 直齿轮 刚度 载荷分担率 变形 

分 类 号：TH132.417[机械工程—机械制造及自动化]