Roller and rolling mill and application thereof

Abstract

The invention belongs to the technical field of stainless steel cold rolling, and particularly relates to a roller and a rolling mill and application thereof. The roller comprises a roller body and at least one roller end connected to one end of the roller body, wherein the roller end comprises a first roller end and a second roller end connected with the first roller end; the second roller end is connected with the roller body; the first roller end is rounded, the second roller end is in a frustum shape, and the outer surface of the second roller end is tangent to the rounded corner of the first roller end. According to the roller disclosed by the invention, the roller end structure with the rounded corner and the inclined surface is adopted, so that the roller end can be prevented from scratching the roller surfaces of other rollers in the processes of carrying, mounting and the like of the roller.

Description

technical field [0001] The invention belongs to the technical field of stainless steel cold rolling, and in particular relates to a roll, rolling mill and application thereof. Background technique [0002] The roll is the main working part and tool for continuous plastic deformation of the metal on the rolling mill. It is mainly composed of three parts: the roll body, the roll neck and the shaft head. Among them, the roll body is the middle part of the roll that actually participates in rolling metal. Therefore, the smoothness of the roll body surface directly affects the quality of the steel strip. The roll end of the existing roll is at a 90° right angle. During the transportation, storage, installation or handling of the roll, the right angle roll end will inevitably scratch the surface of other rolls and affect the surface quality of the rolled product. [0003] Multi-roll mills (especially 20-roll mills, the archway structure is closed and the space is narrow), the wor...

AI Technical Summary

Problems solved by technology

The roll end of the existing roll is at a 90° right angle. During the transportation, storage, installation or handling of the roll, the right angle roll end will inevitably scratch the surface of other rolls and affect the surface quality of the rolled product.

[0003] Multi-roll mills (especially 20-roll mills, the archway structure is closed and the space is narrow), the work rolls need to be replaced frequently during the production process, and the narrow space will cause the work rolls to collide frequently when the work rolls are plugged. The edges and corners of the middle roll end will cause the surface of the work roll to be rubbed, scratched, bumped, and printed on the surface of the steel plate during rolling, which will seriously damage the product quality

[0004] In order to avoid the above-mentioned defects, the research and development personnel developed a roll with straight chamfers at the end of the roll. However, during the process of plugging or handling, the straight edges and right angles of the roll end still cannot avoid bumping the roll body of other rolls.

In addition, the research and development personnel have also developed a roll with rounded corners at the end of the roll. However, when the roll is a new roll, the rounded corners are complete and can protect other rolls, but as the diameter of the grinding roll changes Thin, sharp corners will still be formed at the end of the roll, and the corners will still hit the roll surface of other rolls (such as work rolls) during the plugging process

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