Twenty-high rolling mill backing roller convexity adjusting device

Abstract

The invention discloses a twenty-high rolling mill backing roller convexity adjusting device which comprises a backing roller assembly, a deviation adjusting rack and a hydraulic cylinder with a displacement sensor. The backing roller assembly comprises a rack, a first roller, a second roller, a first convexity deviation adjusting gear, and a second convexity deviation adjusting gear. The first roller and the second roller are arranged oppositely and installed on the rack, the first convexity deviation adjusting gear is installed on the first roller, the second convexity deviation adjusting gear is installed on the second roller, and the first convexity deviation adjusting gear and the second convexity adjusting gear are arranged oppositely. The hydraulic cylinder is arranged on the rack, the deviation adjusting rack is arranged at the end portion of a piston rod of the hydraulic cylinder, and the deviation adjusting rack is meshed with the first convexity adjusting gear and the second convexity adjusting gear to achieve convexity adjusting for the first roller and the second roller. The displacement sensor is installed on a cylinder body of the hydraulic cylinder and used for displaying the eccentric position of the first roller and the eccentric position of the second roller. The twenty-high rolling mill backing roller convexity adjusting device is simple in structure, convenient to use and operate, capable of improving system instruction responding speed and shortening correcting time, high in sensitivity, and capable of achieving on-load adjustment.

Description

technical field [0001] The invention belongs to the technical field of metal strip rolling, and in particular relates to a crown adjustment device for a backing roll of a 20-roll rolling mill. Background technique [0002] At present, the crown adjustment of the backing roll of a 20-high rolling mill is to install a set of hydraulic motor and worm gear reducer on each deviation adjustment rack to drive the deviation adjustment rack to move up and down to adjust the roll shape; the hydraulic oil passes through the electro-hydraulic reversing valve Entering the hydraulic motor, the command response speed of the system is slow, the correction time is long, the sensitivity is low, and it cannot be adjusted with load. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a 20-high rolling mill backing roll crown adjustment device, which has a simple structure, reasonable design, and ...

AI Technical Summary

Problems solved by technology

[0002] At present, the crown adjustment of the backing roll of a 20-high rolling mill is to install a set of hydraulic motor and worm gear reducer on each deviation adjustment rack to drive the deviation adjustment rack to move up and down to adjust the roll shape; the hydraulic oil passes through the electro-hydraulic reversing valve Entering the hydraulic motor, the command response speed of the system is slow, the correction time is long, the sensitivity is low, and it cannot be adjusted with load

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