Universal rolling mill and rolling mill vertical roll device with adjustable vertical roll rotation axis angles

Abstract

The invention discloses a universal rolling mill and a rolling mill vertical roll device with adjustable vertical roll rotation axis angles. The rolling mill vertical roll device with the adjustable vertical roll rotation axis angles comprises a vertical roll, an internal case with a first internal surface and a first external surface, an external case with a second internal surface and a second external surface, a hydraulic cylinder with a cylinder bottom and a piston rod and a pair of half shafts; the universal rolling mill comprises two horizontal rollers and two rolling mill vertical roll devices; the rolling mill vertical roll devices are the above rolling mill vertical roll devices with the adjustable vertical roll rotation axis angles. According to the technical scheme of the universal rolling mill and the rolling mill vertical roll device with the adjustable vertical roll rotation axis angles, inclined rotation axis angles of the vertical roll is rapidly and effectively corrected, the efficiency is high, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of rolling mills for section steel processing, and in particular relates to a universal rolling mill and a rolling mill vertical roll device with adjustable rotation axis angles of the vertical rolls. Background technique [0002] The hot-rolled profile rolling mill rolls the side of the rolled steel through vertical rolls. The existing vertical rolls are installed in the vertical roll box with their rotation axes perpendicular to the horizontal plane. The vertical rolls are connected to the vertical roll box through bearings and connecting shafts. , The vertical roll box is connected and fixed with the frame through guide rails, and there is an opening on one side of the vertical roll box so that a part of the vertical roll protrudes and contacts the rolled steel, thereby rolling the steel. [0003] figure 1 Shown is a rolling mill for hot-rolled section steel in the prior art. It consists of a pair of hor...

AI Technical Summary

Problems solved by technology

[0004] When installing the vertical roll, there is a working gap in the bearing and an assembly gap in the guide rail. Therefore, during the rolling process, the force on the vertical roll is uneven, such as figure 2 As shown, the axis of rotation will be inclined at a certain angle a, resulting in large fluctuations in the size of the rolled steel or even unqualified, especially after a period of use, the bearings and guide rails will be worn to a certain extent. After the roll box (inner box) is assembled on the rolling mill, the angle of inclination of the rotation axis of the vertical roll will be larger

After this situation occurs, due to the limitations of the existing vertical roller structure, it is impossible to quickly and effectively correct the inclination angle. The only solution is to replace the vertical rollers, bearings, and repair the guide rails. Therefore, the efficiency is low and the cost is high. bring adverse effects

Images