Compact chuck type universal mill

Abstract

The invention provides a compact chuck type universal mill, which comprises stands, a roll system and a guide and guard device, wherein the roll system comprises horizontal rolls, bearing seats, vertical rolls and vertical roll boxes, wherein a press-down device is arranged between the stands and the upper horizontal bearing seat; a press-up device is arranged between the stands and the lower horizontal roll bearing seat; a lateral compression device is arranged between the operating side vertical roll box and the operating side stand; and the operating side stand can move. High-accuracy large-sized section steel can be produced by using a closed stand and a fully hydraulic press-down device. The operating side stand is made to be movable; and when the roll system is replaced, only the operating side stand is required to be moved away to completely expose the roll system, the roll changing is realized so that the roll changing time is saved, the operating efficiency of the mill is increased, and the universal mill can be conveniently converted into a two-roll mill for use. The size of a window of the stands is reduced, so that the size of the entire mill is reduced and the weight of equipment is reduced; and the guide and guard device is integrated with the roll system, reversible rolling is realized.

Description

technical field [0001] The invention belongs to the field of metallurgical steel rolling machinery and equipment, in particular to a compact chuck type universal rolling mill. Background technique [0002] Because H-shaped steel has excellent cross-sectional mechanical properties, has parallel legs, is convenient for machining and installation, and can save 15%-30% of materials, it has been widely used in industrial buildings and civil buildings. With the development requirements of steel structure building technology, higher requirements are put forward for the product technology of H-beam, which promotes the research on special equipment for the production of H-beam. The rolling mill is of great significance and has a bright future. [0003] At present, our country has developed a universal rolling mill with a closed stand, such as figure 1 As shown, the transmission side frame 1 and the operation side frame are fixed on the base, the upper horizontal roller 3 is install...

AI Technical Summary

Problems solved by technology

The disadvantage of the above-mentioned universal rolling mill is that the transmission side frame 1 and the operation side frame 2 are fixed on the base, so when replacing the roll system, the roll system must be pulled out from the window of the operation side frame 2, because the upper horizontal roll 3 The roller diameter of the horizontal roller and the lower horizontal roller 4 is relatively large, so the window of the frame must be large enough, which causes the frame to be huge in size and heavy in weight, and the guide device 17 cannot be integrated with the roller system, otherwise it will affect the side surface. To change the roll, only the guide device 17 can be installed separately, and the guide device 17 needs to be disassembled first when changing the roll

In short, the above-mentioned universal rolling mill is bulky, and it is inconvenient to change rolls, which affects the operating rate of the rolling mill.

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