HX_(D)3型机车轴流式通风机电机轴承故障分析及对策  

Fault Analysis and Countermeasures for the Motor Bearing of Axial-flow Fan of HXD3 Locomotive

作　　者：郭洪忠 GUO Hongzhong

机构地区：[1]中国铁路济南局集团有限公司机务部,山东济南250001

出　　处：《铁道技术监督》2023年第4期45-48,共4页Railway Quality Control

摘　　要：分析HXD_(3)型机车轴流式通风机电机故障轴承润滑脂的形态、附着特点和轴承存油量。从电机空腔气压变化过程和气体交换入手,分析轴流式通风机轴承润滑脂流失的原因,提出完善通风机检修工艺、改造轴流式通风机电机和增设风筒-电机空腔气压平衡装置等解决方案,以防止电机轴承润滑脂外溢及污染,达到延长通风机轴承使用寿命的目的。The morphology,adhesion characteristics,and oil storage capacity of the bearing grease for the motor fail⁃ure of the axial-flow fan of HXD3 locomotive are analyzed.Starting from the process of air pressure change and gas ex⁃change in the motor cavity,the causes of lubricating grease loss in the bearings of axial-flow fans are analyzed.This paper proposes solutions such as improving the fan maintenance process,reforming the axial-flow fan motor,and add⁃ing air pressure balancing device of duct-motor cavity to prevent the leakage and pollution of motor bearing grease,so as to extend the service life of the fan bearing.

关 键 词：电力机车 轴流式通风机 电机轴承 故障分析 润滑脂 

分 类 号：U264.52[机械工程—车辆工程]