Roll changing device of horizontal and vertical rolling mill

Abstract

The invention discloses a roll changing device of a horizontal and vertical rolling mill, and belongs to the technical field of roll changing of rolling mills. The roller replacing device comprises a trolley, a roller replacing hydraulic cylinder and a bolt mechanism, a piston rod of the roller replacing hydraulic cylinder is connected with the bolt mechanism, the front end of the bolt mechanism is connected with the trolley, a roller replacing bolt cylinder and a plunger rod are arranged on the surface of the bolt mechanism, and a guide positioning block is further arranged on the surface of the bolt mechanism. One end of the bolt mechanism is connected with the movable base, and a rolling mill body is installed on the surface of the movable base. The roller replacing device is used for roller replacing operation of a fixed type horizontal and vertical rolling mill train, rapid roller replacing of horizontal rolling and vertical rolling can be achieved, and the roller replacing efficiency is high; the roller replacing device has the advantages of being simple and reliable in structure and convenient to maintain, the roller replacing device can be rapidly moved in and out of the rolling mill body and the movable base, meanwhile, the requirement for rapid roller replacing operation of flat rolling and vertical rolling is met, main body structures can be interchanged and universally used, spare part specifications are reduced, and spare part management is convenient.

Description

technical field [0001] The invention relates to the technical field of roll changing in rolling mills, and more specifically, relates to a roll changing device for vertical rolling mills. Background technique [0002] According to the frame structure of the fixed rolling mill body, the horizontal and vertical rolling mills can be divided into two types: C-type frame rotating type and fixed type frame. The C-frame rotary flat-vertical rolling mill appeared earlier, and its main principle is that the rolling mill body rotates 90 degrees on the C-frame to switch between the horizontal state and the vertical state. The characteristic of this type of rolling mill is that it is driven by a set of main motors, and the output is distributed to the rolls of flat rolling mills or vertical rolling mills through gear boxes and clutches. Due to the complex transmission structure and high precision requirements for equipment processing and installation, there are inconveniences in install...

AI Technical Summary

Problems solved by technology

[0004] However, the existing fixed-stand type vertical rolling mill technology has not yet appeared. To replace the horizontal rolling mill and the vertical rolling mill with a set of roll changing devices, a special horizontal moving mechanism needs to be set up for the roll changing of the horizontal rolling mill.

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