If the toothed belt axis and the rotation axis are not parallel, the phenomenon called wobbling occurs. This causes 2 flank errors per revolution. Depending on the position, there is one transmission on the inner edge and one on the outer edge of the toothed wheel.
The doubled speed frequency is clearly evident in the frequency spectrum.
如果齿形带的轴线和旋转轴线不平行，就会出现称为摆动的现象。这会导致每转2次的侧面误差。根据位置的不同，齿轮的内缘和外缘各有一个传动。
双倍速度频率在频谱中明显可见。
Failure mode 故障类型 |
Frequency in raw signal spectrum 原始信号频谱中的频率 |
Frequency in envelope spectrum 包络谱中的频率 |
Comment 解释 |
|---|---|---|---|
Wobbling 摆动 |
1 x fn, 2 x fn |
1 x fz, 2 x fz |
Wobbling movements manifest as doubled speed frequency and are usually accompanied by sidebands. 摆动动作表现为双倍的速度频率，通常伴随着边带。 |
fn |
... Nominal speed ... 标称速度 |
fz |
... Meshing frequency ... 啮合频率 |