Rapid roller changing device for upper roller on welding and rolling machine

Abstract

The invention belongs to an upper roller assembly on a welding and rolling machine, in particular to a rapid roller changing device for the upper roller on the welding and rolling machine. The rapid roller changing device is characterized in that a roller seat sliding laterally is installed on the outer side face of a longitudinal sliding plate, a gantry push frame covers outside both sides and the top of the roller seat, two grooves are symmetrically processed in two side plate faces at the lower part of the push frame, and each groove inclines from the upper part of the outer side to the lower part of the inner side; an upper roller cavity with opening bottom is arranged in the center of the roller seat, and two bearing seats are symmetrically arranged in both end faces of the upper roller cavity, and a roller shaft is installed in the two bearing seats; the upper roller is arranged in the middle of the roller shaft, and an end cover is connected with the outer side of each bearing seat, the end cover side face between the end cover and the push frame is provided with a hook head, and moving mechanisms of two hooks are symmetrically installed on the two hook heads. The invention not only has reasonable design and compact structure, increases installation accuracy and reduces the size of the roller body, but also has the advantages of good rigidity, convenient and fast roller changing, time saving, labor saving, convenient use and the like.

Description

technical field [0001] The invention belongs to an upper roll assembly of a welded rolling mill, in particular to a quick roll changing device for the upper roll of a welded rolling mill. Background technique [0002] At present, the structure of the upper roll assembly in the welded rolling mill includes a machine base, a lifting mechanism, a guide rail, a vertical slide plate, a roll frame, a roller shaft, a pressure plate and an upper roll, and a lifting mechanism is installed on the top of the machine base, driven by the lifting mechanism. The vertical slide plate that slides up and down along the guide rail is connected to the roller frame on the outer surface of the vertical slide plate, the roll shaft is installed on the roll frame, the upper roller with bearings installed at both ends of the roller is set on the roller shaft, and the roller shaft at both ends of the upper roller The upper roller is fixed by the pressing plate on the section. Its shortcomings and sho...

AI Technical Summary

Problems solved by technology

[0003] 1. The size of the roller body is large, because bearings are installed at both ends of the roller, resulting in a large size of the upper roller body

[0004] 2. Due to the unreasonable structure of the roller frame, the rigidity is poor

[0005] 3. The installation accuracy of the upper roller is poor, and the reproducibility of the accuracy is not good

[0006] 4. It takes a long time and laborious to change the roller

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