Applying Full Vector Spectrum for Electric Hoist Gearbox Fault Diagnosis

To resolve the noise and incomplete information of rotor vibration signals for electric hoist gearbox, the full vector spectrum technology is applied for information fusion and wavelet analysis. The full vector wavelet is used to de-noising process for the vibration signals, which extract the more complete characterization information of the noise signal. First, the dual-channel vibration signal wavelet decomposition and reconstruction, and then take advantage of the full vector spectrum technology fusion for the reconstructed signal. In this way, which ensure the integrity of the vibration signal feature information, more reliably reflect the vibration characteristics of the rotor, and improve the accuracy of fault diagnosis.