大功率风电机组增速箱轴承强化试验研究  

Study of Enhancement Test on Bearings of High Power Wind Turbine Gearboxes

作　　者：戴浩楠 李伦[1,2,3] 薛玉君 李玉川[4] 陈龙 Dai Haonan;Li Lun;Xue Yujun;Li Yuchuan;Chen Long(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China;Henan Key Laboratory for Machinery Design and Transmission System,Luoyang 471003,China;Longmen Laboratory,Luoyang 471000,China;State Key Laboratory of Aviation Precision Bearings,Luoyang LYC Bearing Co.,Ltd.,Luoyang 471039,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]河南省机械设计及传动系统重点实验室,河南洛阳471003 [3]龙门实验室,河南洛阳471000 [4]洛阳LYC轴承有限公司航空精密轴承国家重点实验室,河南洛阳471039

出　　处：《机械传动》2024年第11期148-154,161,共8页Journal of Mechanical Transmission

基　　金：国家重点研发计划项目(2019YFB2005004)。

摘　　要：轴承是风电机组增速箱的重要部件,其疲劳寿命和可靠性直接影响风电机组的服役寿命。风电增速箱轴承结构尺寸大,工况载荷和服役环境复杂,若按其实际服役工况进行不小于20年全寿命周期的寿命试验和可靠性试验,既不可能也不现实。以某型4.5MW大功率风电机组增速箱内的单列圆锥滚子轴承为对象,基于滚动体与滚道接触亚表面的变形状态以及载荷和转速对油膜厚度的综合影响,研究确定了其强化试验的载荷和转速范围;并依据等效损伤确定了其强化试验时间。通过对该轴承450h的强化试验,验证了试验方法的有效性。Bearings are critical components of the gearbox in wind turbine units,and their fatigue life and reliability directly influence the service life of wind turbines.Considering the large structural dimensions of wind turbine gearbox bearings,the complex loading conditions and harsh service environments,it is neither possible nor realistic to carry out not less than 20 years whole lifecycle test and reliability test under the actual service condition.The single-row tapered roller bearing in the gearbox of a specific 4.5 MW high-power wind turbine was focused and studied in current research.Based on the influence of the deformation state of the contact subsurface between the rolling element and the raceway on applied load,and the comprehensive effect of load and rotational speed on the oil film thickness,the load and rotational speed of the enhancement test were determined.The accelerated test duration was established according to the equivalent damage.The validity of this test method was verified by the 450 h enhancement test of single-row tapered roller bearing in the wind turbine gearboxes.

关 键 词：风电增速箱 圆锥滚子轴承 接触状态 等效损伤 强化试验 

分 类 号：TM315[电气工程—电机]