Shell ring mill roll changer

Abstract

The invention relates to a shell ring mill roll changer, which is applied to a heavy-duty eyelet component rolling technology, and plays the role of replacing a top working roll. The shell ring mill roll changer, which is arranged on a roll changing orbit, comprises a push-pull hydraulic cylinder and a revolving pin roll at the end part and also comprises a roll changing larry body provided with wheels and a balance weight and a roll changing hydraulic cylinder which are arranged on the roll changing larry body; a fixed pin roll which can form an articulated point together with the top working roll is arranged on the roll changing larry body; a pull rod forms another articulated point together with the top working roll through the pin roll; a larry which can roll on the roll changing orbit is formed by the roll changing larry body, the top working roll and the wheels; a piston rod of the push-pull hydraulic cylinder drives the larry to move left and right through the revolving pin roll, thereby driving the top working roll to shift in and shift out to satisfy the requirements of shell ring rolling technology and roll changing.

Description

technical field [0001] The invention relates to rolling equipment for heavy metal rings, in particular to equipment for replacing upper work rolls and lower work rolls in barrel section rolling mills. Background technique [0002] The barrel section rolling mill is a heavy metal ring rolling equipment independently developed by our company. It is used to replace the existing domestic manufacturing process of heavy metal rings. It can greatly improve the production efficiency of metal rings, reduce costs, improve quality, and roll The principle of the ring piece is similar to that of rolling ordinary steel plates. The purpose of rolling is achieved by the continuous extrusion of the upper and lower work rolls to cause the metal to undergo plastic deformation. The difference is that the ring piece is a closed circular ring. At this time, the upper work roll must leave the working position and wait at the roll changing position, so that the ring-shaped workpiece can be hoisted ...

AI Technical Summary

Problems solved by technology

[0004] It can be seen from its working principle that the work roll changing machine of the plate rolling mill cannot meet the above-mentioned requirements for changing the work rolls on the barrel mill, so it is necessary to invent a special roll changing machine for the barrel mill

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