The application discloses a roll changing
pile falling detection
system and method and a roll changing trolley, and relates to the technical field of roll changing. The roll changing
pile falling detection
system comprises a measuring device and a detection terminal. The measuring device is used for outputting the
pitch angle of the roll changing trolley and the first measuring distance between the roll changing trolley and the roll to be changed when the roll changing trolley performs the
pile falling detection task of the roll to be changed. The detection terminal is used for outputting the pile falling detection result of the roll to be changed according to the
pitch angle and the first measuring distance. Since the
pitch angle of the roll changing trolley affects the distance measuring accuracy, the detection
system corrects the first measuring distance according to the
pitch angle, so that the interval distance between the roll changing trolley and the roll to be changed is determined more accurately, the measurement error caused by the
wheel wear or horizontal position deviation of the roll changing trolley is eliminated, the pile falling state of the upper roll during the roll changing of the
rolling mill can be detected with high accuracy, and the accuracy of the pile falling detection during the roll changing of the
rolling mill is improved.