Method and apparatus for preventing spindle vibration of main motor in hot finishing rolling

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method capable of preventing a spindle-type vibration of a main motor from being generated in hot rolling, thereby improving the responsiveness of the motor.;The present invention is basically based on the motor angular speed _M) And inputting the working roll diameter in the supervisory control computer, and directly from the microprocessor the speed of the rolling roll (V_R) Is calculated.;According to the present invention, it is possible to prevent the vibration that may occur in the rolling roll by vibration of the spindle in advance, thereby solving the vibration problem of the rolling roll speed as well as improving the responsiveness of the motor. And it has a remarkable effect in improving productivity and preventing the occurrence of residuals.