Ren Yanyan,Wang Yaqiang.Failure Analysis of Sun Gear Splines in Fan Gearboxes[J].Journal of Mechanical Transmission,2023,47(11):117-122. DOI: 10.16578/j.issn.1004.2539.2023.11.017.
Failure Analysis of Sun Gear Splines in Fan Gearboxes
In view of the failure problem of sun gear splines in fan gearboxes
through the analysis of the chemical composition
microstructure
microfracture and mechanical properties of the failure spline
the cause of the spline wear is found out. The results show that there are more rods
unequal axes or islands of the undissolved ferrite in the metallographic structure of inter mediate shaft(IMS) sun gear motor side splines
which reduces the wear resistance of the material. The failure of sun gear splines is mainly caused by low tooth surface hardness. At the same time
due to the comprehensive action of fatigue wear
chemical corrosion
abrasive wear and other wear mechanisms
serious tooth surface wear occurs
resulting in a decrease of the bearing capacity of IMS sun gear motor side splines. The force transmission is not smooth
and the vibration is aggravated during operation
resulting in the failure of the gearbox. The test results can provide some theoretical guidance for the fault detection and diagnosis of wind power gearboxes.
关键词
风机齿轮箱太阳轮花键失效微观断口磨损
Keywords
Wind motor gearboxSun gear splineFailureMicrofractureWear
JIN Xiaohang,SUN Yi,SHAN Jihong,et al.Review on fault diagnosis and prediction technology of wind turbine[J].Chinese Journal of Scientific Instrument,2017,38(5):1041-1053.
HE Renjie.Study on response law analysis and gear optimization of wind power gearbox during the whole life cycle[D].Wuhan:Hubei University of Technology,2020:15-20.
BIERBOOMS W,CHENG P.Stochastic gust model for design calculations of wind turbines[J].Journal of Wind Engineering and Industrial Aerodynamics,2002,90(11):1237-1251.
BLAABJERG F,MA K.Future on power electronics for wind turbine systems[J].IEEE Journal of Emerging and Selected Topics in Power Electronics,2013,1(3):139-152.
ZHAO Dengli,YANG Kuoling,DONG Ying.Failure analysis of parallel gear teeth of wind power gearbox[J].Journal of Mechanical Transmission,2020,44(7):119-123.
梁舒曼.双馈风机齿轮箱行星齿轮故障诊断[D].沈阳:沈阳工业大学,2022:12-14.
LIANG Shuman.Planetary gear fault diagnosis of doubly-fed fan gearbox[D].Shenyang:Shenyang University of Technology,2022:12-14.
National Technical Committee for Steel Standardization.Carbon steel and low-alloy steel—determination of multi-element contents—spark discharge atomic emission spectrometric method(routine method):GB/T 4336—2016[S].Beijing:Standards Press of China,2016:1-8.
China Machinery Industry Standardization Technical Committee for Large Casting and Forging Parts.Specification of large gear and girth gear forgings:JB/T 6395—2010[S].Beijing:China Machine Press,2010:2-6.
National Technical Committee for Steel Standardization.Metallic materials-tensile testing—part 1:method of test at room temperature:GB/T 228.1—2021[S].Beijing:Standards Press of China,2021:12-28.
National Technical Committee for Steel Standardization.Metallic materials—Charpy pendulum impact test method:GB/T 229—2020[S].Beijing:Standards Press of China,2020:4-8.
National Technical Committee for Steel Standardization.Inspection methods of microstructure for metals:GB/T 13298—2015[S].Beijing:Standards Press of China,2015:1-9.
National Technical Committee for Steel Standardization.Metallic materials—vickers hardness test—part 1:test method:GB/T 4340.1—2009[S].Beijing:Standards Press of China,2009:1-4.
National Technical Committee for Gear Standardization.Calculation of load capacity of spur and helical gears—part 5:strength and quality of materials:GB/T 3480.5—2021[S].Beijing:Standards Press of China,2021:22-23.
MENG Fanye.Intelligent fault diagnosis of wind turbine gearbox based on multi-direction vibration data[D].Shenyang:Shenyang University of Technology,2022:23-35.