ICS 27.180 F11NB 中华人民共和国能源行业标 准 NB/TXXXXX—XXXX 风力发电机组 变桨和偏航轴承 设计要求 Windturbines —DesignrequirementsforpitchandyawBearings （报批稿） XXXX-XX-XX 发布 XXXX-XX-XX 实施 国家能源局 发布NB/T XXXXX—XXXX I目  次 前言............................................................... ............................................................... .......................................III 1范围............................................................... ............................................................... .....................................1 2规范性引用文件 ............................................................... ............................................................... .................1 3符号............................................................... ............................................................... .....................................1 4轴承基本结构 ............................................................... ............................................................... .....................3 4.1变桨轴承基本结构 ............................................................... ............................................................... ......3 4.2偏航轴承基本结构 ............................................................... ............................................................... ......3 5套圈设计............................................................... ............................................................... .............................4 5.1套圈基本尺寸 ............................................................... ............................................................... ..............4 5.2原材料............................................................... ............................................................... ..........................4 5.3热处理............................................................... ............................................................... ..........................5 5.4其它要求............................................................... ............................................................... ......................5 6滚道设计............................................................... ............................................................... .............................5 6.1滚道原始接触角、曲率半径 ............................................................... .....................................................5 6.2滚道热处理 ............................................................... ............................................................... ..................5 7油沟设计............................................................... ............................................................... .............................6 8齿轮设计............................................................... ............................................................... .............................6 8.1齿轮精度............................................................... ............................................................... ......................6 8.2轮齿热处理 ............................................................... ............................................................... ..................6 9密封设计............................................................... ............................................................... .............................7 9.1密封结构............................................................... ............................................................... ......................7 9.2密封布置............................................................... ............................................................... ......................7 9.3密封材料............................................................... ............................................................... ......................8 10保持架设计 ............................................................... ............................................................... ............