Tensioning roller structure of steel belt rolling machining line

The utility model discloses a tensioning roller structure of a steel belt rolling processing line, which comprises a fixed plate, one side in the fixed plate is connected with a fixed disc I through a connecting shaft I, the other side in the fixed plate is connected with a fixed disc II through a connecting shaft II, three roller shafts are arranged between the fixed disc I and the fixed disc II in parallel, and the three roller shafts are connected with the fixed disc II through a connecting shaft II. A tensioning roller body is fixed to each roller shaft, the power input end of the first connecting shaft is connected with a motor, limiting gears are welded to the middle of the first connecting shaft and the middle of the second connecting shaft, arc-shaped toothed plates are arranged below the limiting gears, and electric push rods are installed between the bottom ends of the arc-shaped toothed plates and the fixing plate. The three-roller type steel belt tensioning device has the advantages that a three-r