高转速条件下无级变速器带轮变形研究  

Study on Deformation of CVT Pulleys at High Speeds

作　　者：向红娓 谷倩微 陈慧玲[1] 王智明 彭韬 Xiang Hongwei;Gu Qianwei;Chen Huiling;Wang Zhiming;Peng Tao(School of Mechanical Engineering,Hunan Chemical Vocational Technology College,Zhuzhou 412000,China;CRRC Zhuzhou Institute Co.,Ltd.,Zhuzhou 412001,China)

机构地区：[1]湖南化工职业技术学院机械工程学院,湖南株洲412000 [2]中车株洲电力机车研究所有限公司,湖南株洲412001

出　　处：《机械传动》2024年第11期140-147,共8页Journal of Mechanical Transmission

基　　金：湖南省教育厅基金项目(22C0886,23C0617)。

摘　　要：高转速条件下,带轮变形会导致金属带沿带轮锥面发生偏移,从而加剧CVT各零部件之间的磨损,严重影响CVT的使用寿命和传动效率。因此,建立高转速条件下带轮的力学模型,利用有限元法分析了不同速比、转矩、转速等因素对CVT带轮轴向变形的影响,并进行了试验验证。结果表明,带轮的轴向变形随速比增大而减小,随转矩、转速增大而呈先减小后增大的趋势,试验结果与分析结果变化趋势一致。Under the condition of high speed,the deformation of the pulley will cause the metal strip to shift along the cone of the pulley,which will aggravate the wear between the various parts of the CVT,which will seriously affect the service life and transmission efficiency of the CVT.Therefore,the mechanical model of the pulley under the condition of high speed was established,the influence of speed ratio,torque,speed and other factors on the axial deformation of the CVT pulley was analyzed by using the finite element method,and the test was verified.The results show that the axial deformation of the pulley decreases with the increase of the speed ratio,and decreases first and then increases with the increase of torque and speed,and the test results are consistent with the analysis results.

关 键 词：高转速 CVT 带轮变形 有限元法 轴向变形 

分 类 号：TH132.46[机械工程—机械制造及自动化]