Аннотация:The vibrometry method of diagnosing the destruction of the eccentric shaft of the oscillation mechanism drive of the continuous casting machine mold was developed based on the research of influence of fatigue fracture of the shaft on the amplitude-frequency characteristic and the vibration level of the oscillation mechanism. Using the Shengli theory to determine the current crack length of the eccentric shaft, the dependence of the shaft stiffness variation with time was derived. The study of this dependence has shown that decreasing shaft stiffness leads to the increase of total vibration level and spectrum of fluctuations of the drive of mold oscillation mechanism. The obtained results allowed to establish the discernment boundaries of status (integrity) of the eccentric shaft of the drive of the mold oscillation mechanism by the vibration level depending on the rotational speed of the motor shaft on the basis of GOST ISO 10816-1-97. The proposed vibrometry method for diagnosing the drive of the CCM mold mechanism is focused on the use of widely available portable vibration analyzers.
