摘要
阐述了一种高速动车组变轨距转向架轴箱轴承的选型分析,包括对轴承形式、轴承精度、轴承材质、润滑脂类型、润滑脂填充量、轴承密封及轴承游隙等的分析,确定了变轨距转向架轴承的基本型式和尺寸。考虑变轨距转向架运用特性,按照安全导向,以偏载侧圆锥轴承的应力1.6倍于未发生偏转时的应力计算,可得当量动载荷偏载21.75 mm,轴承计算里程仍能达到190万km。计算结果表明,所选轴承满足设计要求。
The type selection analysis of an axle box bearing for the gauge-changeable bogie of high-speed EMUs was described, including the analysis of bearing form, bearing precision, bearing material, lubricating grease type, grease filling amount, bearirlg seal and bearing clearance, etc., and the basic type and size of the bearing of the gauge-changeable bogie were determined. Considering the application characteristics of the gauge-changeable bogie, according to the safety guidance, with the stress calculation of the tapered bearing on the partial load side being 1.6 times that of the stress calculation without deflection, when the equivalent load was 21.75 mm, the calculation mileage of the bearing could still reach 1 million 900 thousand km. The calculation results showed that the selected bearings met the design requirements.
作者
韩光旭
周殿买
黄志辉
HAN Guangxu;ZHOU Dianmai;HUANG Zhihui(CRRC Changchun Railway Vehicles Co.,Ltd.,Changchun,Jilin 130062,China;State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu,Sichuan 610031,China)
出处
《机车电传动》
北大核心
2018年第4期6-9,共4页
Electric Drive for Locomotives
基金
国家重点研发计划项目(2016YFB1200501)
关键词
高速动车组
变轨距技术
转向架
轴箱轴承
选型
偏载量
寿命评估
high-speed EMUs
gauge-changeable technology
bogie
axle box bearing
type selection
partial load
life assessment
