Rolling mill with split type rack

Abstract

The invention provides a rolling mill with a split type rack. The rolling mill comprises two memorial archways forming the rack. A variable-section supporting frame and a tower-shaped roller system roller seat are arranged in windows of the two memorial archways. The variable-section supporting frame comprises an upper variable-section supporting frame body or / and a lower variable-section supporting frame body. At least two pressing adjusting devices enabling the upper variable-section supporting frame body to move up and down are arranged on the upper portion of the upper variable-section supporting frame body in the windows of the memorial archways. At least two rolling line adjusting devices enabling the lower variable-section supporting frame body to move up and down are arranged on the lower portion of the lower variable-section supporting frame body in the windows of the memorial archways. The rack of the rolling mill is arranged into an organic combination of the two memorial archways, and the variable-section supporting frame and the tower-shaped roller system roller seat which are arranged in the windows of the memorial archways, the whole rack is split, and the middle ofa tower-shaped roller system is supported; and the rack of the rolling mill is machined and transported respectively, so that machining and transporting are easy.

Description

technical field [0001] The invention relates to the field of machinery, in particular to the field of rolling mills, in particular to a rolling mill with a split stand. Background technique [0002] The roll system of the plate and strip mill can be divided into a vertical roll system and a tower roll system according to the shape between the roll axes. [0003] The vertical roll system includes two-roll mill, four-roll mill and six-roll mill. Because the roll gap opening can be large or small, it is widely used in hot rolling and cold rolling; hot rolling mills for wide and thick plates are almost all four-roll mills, such as the world's widest 5.5-meter rolling mill is a four-roll mill. [0004] The tower-shaped roll system includes a tower-shaped six-high rolling mill, a twelve-high rolling mill, a twenty-high rolling mill, and an eight-high rolling mill derived from a tower-shaped six-high rolling mill. Since the gap opening of the multi-roll mill is relatively small, ...

AI Technical Summary

Problems solved by technology

[0005] The patent application number is "89101393.8", on the basis of the multi-roll rolling mill, it realizes the middle reduction (the middle part of the roll is under force), which improves the transverse rigidity of the rolling mill, greatly improves the accuracy of the cross-section of the plate and strip, and the roll gap Therefore, the tower-shaped six-high rolling mill (or the derived eight-high rolling mill) of this patented model can be used in wide and thick plate rolling mills. It not only has high cross-section accuracy, but also can avoid the Rolling mills use large-diameter support rolls, which is expected to break through the world's widest 5.5-meter rolling mill; but its overall frame will become a fatal limiting factor, and it will not be able to be manufactured or transported because the overall frame is overweight

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