The Gearbox Fault Diagnosis Based on Wavelet Transform

Jinyu Wang, Dejian Kong, Shi Dong, Chao Wang
2015 Proceedings of the 2015 International Industrial Informatics and Computer Engineering Conference   unpublished
The main gearbox is an important driving force for a pump. It needs to carry out regular monitoring. In this paper, it measures the vibration acceleration signal of a pumping unit's main gearbox, names them 1# and 2#. After comparing the time course curve and spectral of the two main gearbox, it has found the 2# gearbox's maximum amplitude is about 2.5 times than the 1#. The narrowband signals are filtered by Hilbert transform to obtain the envelope of the narrow band signal. The envelope
more » ... s are significant different between the two gear boxes, 1# gearbox has more spectrum of frequency, and 2# gearbox is more outstanding single frequency component. The results show that the presence of the 2#gearbox has some minor faults. The 2# gearbox is more wear than 1# gearbox, which explains the rationality of the vibration analysis.
doi:10.2991/iiicec-15.2015.430 fatcat:v2pessvijfgcpfstj3xsv5oa2y