Abstract: The pace of large wind turbine units was accelerating, and the reliability of core components was increasingly important for wind turbine operations. Sliding bearings had the advantages of high load capacity, long life, easy maintenance, scalability and small size, and they had advantages and great potential for the reliable replacement of wind turbine main bearings key components produced at home. The problems of main shaft rolling bearings in high-power wind turbines and the advantages of using sliding bearings on the main shaft were analyzed herein. The technical methods and application status of wind turbine main shaft sliding bearing design, materials, lubrication, and experimental verification were present in detail, and the existing problems of high-power wind turbine main shaft sliding bearings and future development trends were summarized. It is expected to provide reference for the digital design and industrial development of high-power wind turbine main bearings.

Key words: sliding bearing, configuration design, lubrication theory, material modification, bearing experiment, wind turbine main shaft

摘要： 风电机组大型化步伐加快，核心零部件的可靠性对风机运行的影响越来越大。滑动轴承具有高承载、长寿命、易维护、可扩展、小体积等优点，对风机主轴承关键零部件的国产安全可靠替代水平提高具有显著作用和很大潜力。分析了大功率风机主轴滚动轴承存在的问题与主轴应用滑动轴承的优势，并详细论述了风机主轴滑动轴承设计、材料、润滑、试验验证等多方面的技术方法和应用现状，总结了大功率风机主轴滑动轴承存在的问题及未来的发展趋势，为大功率风电主轴承数字化设计与产业发展提供参考。

关键词: 滑动轴承, 构型设计, 润滑理论, 材料改性, 轴承试验, 风机主轴