Roller replacement device

Abstract

The invention relates to a roller replacement device, which comprises a sliding plate, wherein limiting parts matched with the lower end faces of lower bearing pedestals connected with the two ends of a lower roller are arranged on the sliding plate, and are used for limiting the displacement of the sliding plate and the lower bearing pedestals along the axial direction of the rollers and parallel to the advancing direction of a material; the sliding plate forms guide sliding fit with guide rails on a base of a rolling mill. According to the roller replacement device, the degrees of freedom of the sliding plate and the lower bearing pedestals along the axial direction of the rollers and in the advancing direction of the material are restricted by the limiting parts on the sliding plate, and the lower bearing pedestals are arranged on the sliding plate, so that the lower bearing pedestals are probably not required to move downwards, and the rollers move together with the sliding plate in a movement process of the sliding plate, and can be conveniently pushed into and pulled out of a rack of the rolling mill.

Description

technical field [0001] The invention relates to steel rolling equipment, in particular to a roll changing device of a rolling mill. Background technique [0002] The processing of the centerline bar in the prior art mostly adopts rolling mill to form. The rolling mill can generally be divided into archway frame, cantilever frame or archway frame welded by profiles in terms of its structure. The upper and lower rolls form a roll system to roll the material to be rolled. Because the lower bearing housings are all fixed on the bottom support of the archway type frame by bolts, the pressing device of the upper bearing housing is usually arranged on the upper beam, that is to say, the upper and lower rolls are arranged independently of each other. When replacing the rolls, not only is it time-consuming and labor-intensive to replace the rolls, but also the roll system needs to be repositioned, adjusted, and locked. [0003] The applicant once disclosed the design scheme of rele...

AI Technical Summary

Problems solved by technology

However, the roll systems in the prior art are all separated from each other by the upper and lower roll bearing housings, and the lower end of the column is designed to be hinged with the base. Although it is convenient to take and place the roll system, it is still necessary to release the upper beam against the column. The fixed constraints of this kind of disassembly and reassembly process are also very complicated.

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