风电机组叶根紧固系统的破坏形式和维护  

The Damage Form and Maintenance of the Blade Root Fastening System of Wind Turbine

作　　者：李巍 LI Wei(Longyuan(Beijing)Wind Power Engineering Technology Co.,Ltd.,Beijing 100034,China)

机构地区：[1]龙源(北京)风电工程技术有限公司,北京100034

出　　处：《风力发电》2020年第4期15-20,共6页Wind Power

摘　　要：变桨轴承、高强度螺栓连接副连接叶片和轮毂是风电机组叶根固定的一种主要形式,如何提升叶根固定可靠性、延长其使用寿命是风电生产中至关重要的问题。本文总结了固定叶根的变桨轴承、高强度螺栓连接副基本类型和失效形式,分析了故障形成原因,并给出了日常预防维护方案。Pitch bearing,high strength bolt hexagon nut and plain washer connecting blade and hub is a main form of wind turbine blade root fixing.How to improve the reliability of blade root fixation and extend its service life is a crucial issue in wind power production.This paper summarizes the basic types and failure forms of pitch bearings with fixed blade roots and high-strength bolt connections,analyzes the causes of failures,and gives daily preventive maintenance programs.

关 键 词：变桨轴承 高强度螺栓连接副 叶根 失效 维护 

分 类 号：TM6[电气工程—电力系统及自动化]