1、首先可以看到齿轮结构示意图。
2、利用振动分析仪VIB07检测的频谱图。计算：N1=1368rpmGMF1=1368rpm *16 租涫疼迟=21888rpm =364.80HzN2=1368rpm*16/26=841.85rpm=14.03HzGMF2=841.85*17=14311rpm =238.523HzN3=841.85rpm*17/47=304.50rpm=5.07HzGMF3=304.50rpm*14=4262.99rpm=71.05Hz
3、计算：N1=1368rpmGMF1=1368rpm *16 =218呖分甾胗88rpm =364.80HzN2=1368rpm*16/26=841.85rpm=14.03HzGMF2=841.85*17=14311rpm =238.523HzN3=841.85rpm*17/47=304.50rpm=5.07HzGMF3=304.50rpm*14=4262.99rpm=71.05HzN4 =304.50rpm*14 /45 =94.73rpm=1. 58Hz
4、结论：振动速度频谱表明：最高幅值尖峰为齿轮箱中伞齿轮啮合频率GMF1，并且其两边还有输入轴转速频率0.5*N1的边带。说明高速伞齿轮中存在松动。这种松动引起独特的齿轮载荷，导致非常高的齿轮啮合噪声。这种松动可能是高速伞齿轮与轴之间配合松动，也可能是轴承磨损后齿轮轴本身松动。
