Sintering machine trolley wheel center shaft detection early warning method

The invention relates to a sintering machine trolley wheel center shaft detection early warning method. The method comprises the steps that 1, wheel position information, center coordinates and wheel images are obtained; 2) drawing an ROI (Region of Interest) region, segmenting images of a wheel end cover and a middle shaft in the wheel image, and carrying out graying processing; 3) taking the center of the wheel as a circle center, establishing a coordinate system, making an auxiliary line, establishing a shape judgment rule of a gap at the joint of the wheel middle axle and the end cover, judging that the middle axle is in a sub-health state when the shape of the gap at the joint of the wheel middle axle and the end cover is crescent, and giving an early warning for the sub-health state of the middle axle, otherwise, determining that the middle axle is in a normal state; by detecting the center shaft of the trolley wheel and the edge gap thereof, the sub-health state of the center shaft of the trolley wheel