Availability Assessment of Mounting Groups of Mining Machines
B. L. Gerike1,2, V. I. Klishin1,2, A. A. Mokrushev1,2
1Federal Research Center for Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, 650056 Russia
2Gorbachev Kuzbass State Technical University, Kemerovo, 650099 Russia
Keywords: горные машины, опорные узлы, подшипники качения, дефекты изготовления и сборки, оценка технического состояния, мониторинг, вибродиагностика, Mining machines, mounting groups, roller bearings, manufacturing and assembling defects, availability assessment, monitoring, vibro-diagnostics
Abstract
The classification of the methods available for diagnostic of mining machinery mounting groups with roller bearings is considered with indicated advantages and disadvantages. The model is constructed to describe formation of shock pulses in roller bearings when different defects are generated in them. This model is suitable for the availability monitoring of the machinery mounting groups. The applicability of wavelet transforms instead of the standard fast Fourier transform to random processes and vibro-acoustic signals is tested for the detection of defects in manufacture and operation of mining machines.
|
