过盈配合下风电机组主轴轴承寿命研究  

Research on wind turbine main bearing life considering the influence of interference fit

作　　者：姜宏伟[1] JIANG Hong-wei(Technical Center of Taiyuan Heavy Industry Co.,Ltd.,Taiyuan 030024,China)

机构地区：[1]太原重工股份有限公司技术中心,山西太原030024

出　　处：《重型机械》2021年第1期73-76,共4页Heavy Machinery

基　　金：国家重点研发计划(2019YFB2005005);山西省科技重大专项(20181102023)。

摘　　要：随着风电机组发电功率的不断增加,其关键部件的寿命及安全性被提出了更高要求。本文以某型号风力发电机主轴轴承为例,基于厚壁圆筒理论,分析了主轴轴承过盈装配的影响,建立了过盈量与径向工作游隙的计算方法,以此为基础进行轴承的疲劳寿命分析;建立了风电机组主轴及轴承仿真模型,分析了在外部载荷下径向工作游隙对主轴轴承寿命的影响,得到了轴承最佳径向工作游隙,研究结论对工程实际应用具有一定的指导意义。With the continuous increase in power generation of wind turbines,higher requirements are put forward on the life and safety of key components of wind turbines.This paper takes a certain type of wind turbine main shaft bearing as an example,based on the thick-walled cylinder theory,analyzes the influence of the interference assembly of the main shaft bearing,and establishes the calculation method of the interference and the radial working clearance to analyze fatigue life.A simulation model of the main shaft and bearing of the wind turbine is established,and the influence of the radial working clearance on the life of the main shaft bearing under external load is analyzed,and the best radial working clearance of the bearing is obtained.The research results has certain guiding significance for practical engineering application.

关 键 词：过盈配合 主轴轴承 径向工作游隙 疲劳寿命 

分 类 号：TH133.33[机械工程—机械制造及自动化]