Method for preventing jamming and breaking of lower stepped pad of rolling mill

The invention relates to the technical field of ferrous metallurgy rolling mill equipment, and particularly discloses a method for preventing jamming and breaking of a lower step pad of a rolling mill, which is characterized in that a spring with proper elasticity and height size is designed and mounted in a step pad supporting frame, and the step pad is supported by the spring; when the step pad is located at the non-working position, certain vertical gaps are formed between the step pad and the supporting frame and between the step pad and the pressure equalizing plate, and it is ensured that the step pad can smoothly move to the position above the pressure equalizing plate without jamming during adjustment; when the step pad is located at a working position and in a rolling force applying state, the spring is stressed to be compressed and deformed, the gap between the step pad and the pressure equalizing plate is eliminated and makes contact with the pressure equalizing plate, rolling force is transmitted,