Rolling mill

Abstract

The invention relates to a rolling mill which comprises a rolling mill base, upper cross beams and a rack formed by uprights vertically disposed between the rolling mill base and the upper cross beams. An integral-type roller system comprises an upper roller, a lower roller, an upper bearing seat and a lower bearing seat, the upper bearing seat and the lower bearing seat are used for fixing the upper roller and the lower roller, springs driving the upper bearing seat and the lower bearing seat to separate are arranged between the same, the lower ends of bearing seat uprights are fixedly connected with the lower bearing seat while the upper ends of the same are connected with cross beams, a supporting and height adjusting mechanism is arranged between the lower bearing seat and the rolling mill base, and a pressing-down mechanism for pressing the upper bearing seat down and a locking mechanism used for pressing the cross beams down are arranged on the upper cross beams. The integral-type roller system can be conveniently pushed into or drawn out of the rack by utilizing a sliding plate, so that great convenience in roller changing is realized; the rack does not need to be demounted during roller changing, operating processes are reduced, the rack can be ensured to be adjusted to be in a state required by designing in advance, and the state can be maintained, so that rolling rigidity and accuracy of the rolling mill are guaranteed.

Description

technical field [0001] The present invention relates to steel rolling equipment, specifically the structure of a rolling mill. Background technique [0002] Most of the processing of plates and wires and bars in the prior art is formed by rolling in a rolling mill. 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 that fix the upper and lower rolls are fixed on the bottom support of the archway frame with bolt-like components, the pressing device for the upper bearing housings is usually set on the upper beam, that is to say, the upper and lower rolls are set independently of each other. Difficulty arises when changing rolls. Not only is it time-consuming and labor-intensive to change rolls, but the roll system needs to be repositioned, adjusted, and locked. These prob...

AI Technical Summary

Problems solved by technology

However, the roll trains in the prior art are all separated from each other by the upper and lower roll bearing housings. The lower end of the mill column is designed as a hinged connection structure with the mill base. The fixed constraint of the beam on the column, this disassembly and reassembly process is also very complicated

Theoretically, the upper and lower rolls can be hoisted synchronously, but because there is no reliable connection between the two, for the sake of safety, the method of hoisting separately is still used in actual work. and difficult positioning locking operation

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