【摘要】 风机轴承在运行仅1 440 h后，出现了振动异常的现象，这明显偏离了正常使用寿命的预期。为查明原因，对出现问题的轴承进行了拆解检查，拆解后发现，风机轴承的内外圈表面均出现了显著的剥落现象。为探究轴承失效的原因，采用扫描电镜观察微观结构、直读光谱分析材料成分以及金相分析检测组织状态。结果表明：装配不当引起的轴向受力异常是本次风机轴承早期失效的根源。针对此问题，建议加强装配过程的质量控制，确保所有操作符合规范，以避免类似故障再次发生。同时，定期对轴承进行检查和维护，及时发现并处理潜在问题，也是保障设备稳定运行的重要措施。更多还原

【Abstract】 The bearing of a wind turbine experienced abnormal vibrations after merely 1440 hours of operation, significantly deviating from the expected normal service life. To ascertain the cause, the malfunctioning bearing was disassembled for inspection. Upon disassembly, it was observed that both the inner and outer races of the bearing exhibited notable spalling. To investigate the root cause of bearing failure, this study employed scanning electron microscopy(SEM) for microscopic structural observation, direct-reading spectroscopy for material composition analysis, and metallographic analysis for examining the microstructural state. The results indicate that improper assembly resulting in abnormal axial loading is the primary reason for the early failure of the wind turbine bearing. In response to this issue, it is recommended to strengthen quality control during the assembly process, ensuring that all operations adhere to specifications, to prevent similar failures from recurring. Additionally, regular inspections and maintenance of bearings, coupled with timely identification and resolution of potential issues, are crucial measures to ensure the stable operation of the equipment.更多还原