风电机组球面滚子轴承的参数化研究与仿真分析  

Parametric study and simulation of windturbine spherical roller bearing

作　　者：徐立晖 罗勇水 张明良 何先照 XU Li-hui;LUO Yong-shui;ZHANG Ming-liang;HE Xian-zhao(Zhejiang Windey Co.,Ltd.,Hangzhou 310000,China;Key Laboratory of Wind Power Technology of Zhejiang Province,Hangzhou 310000,China)

机构地区：[1]浙江运达风电股份有限公司,浙江杭州310000 [2]浙江省风力发电技术重点实验室,浙江杭州310000

出　　处：《机电工程》2021年第7期929-934,共6页Journal of Mechanical & Electrical Engineering

基　　金：国家重点研发计划资助项目(2019YFB2005005)。

摘　　要：针对双列球面滚子轴承出现滚道异常磨损的问题,对风力发电机组主轴承游隙、轴承滚子密合度、轴承滚子修型和轴承跨距进行了研究。根据不同轴承参数对轴承滚子接触状态的影响,提出了改善滚子接触状态的有效方法,避免了滚子在使用过程中出现应力集中的现象;利用Romax软件建立了三维主轴传动链模型,并对轴承滚子接触状态进行了分析。研究结果表明:轴承游隙对轴承滚道接触应力影响较小;可通过降低轴承滚子的密合度或对滚子进行修型,避免因轴承滚子边缘应力集中导致轴承滚道出现异常磨损的情况;降低轴承滚子密合度或对轴承滚子进行修型会增加轴承滚子的接触应力;轴承跨距对轴承接触应力有较大的影响,跨距越短,轴承滚子接触应力越大,滚子应力集中现象越严重。Aiming at the abnormal wear problem on the inner ring of double spherical roller bearing,the bearing clearance,roller osculation,bearing roller profile modification and bearing span of the wind turbine bearings were studied and analyzed.Based on the effect of different bearing parameters on the contact pattern of the bearing roller,the useful methods were proposed to eliminate the edge contact problem.The three-dimensional model of the main shaft transmission system was built and analyzed with Romax software.The research results indicate that the bearing clearance has little effect on the bearing contact stress.By reducing the bearing roller tightness or modifying the roller profile,the edge stress concentration circumstance and the abnormal wear of the bearing raceways can be eliminated,while the contact stress of the roller can be increased.The bearing span has major effect on the contact stress,the shorter bearing span is,the higher the roller contact stress is and the greater the edge contact stress is.

关 键 词：风电机组 主轴轴承 接触应力 滚子修型 轴承跨距 

分 类 号：TH133.3[机械工程—机械制造及自动化] TM614[电气工程—电力系统及自动化]