Rolling mill stand roll changer

Abstract

The invention provides a rolling mill stand roller replacing device. The device comprises a crane capable of going into and out of a rolling mill, and the traveling track of the crane is parallel to aroller shaft of a stand roller to be replaced; a supporting beam is arranged on a base of the crane, and is provided with a sliding rail which allows a supporting frame to horizontally slide along the sliding rail, the sliding rail is perpendicular to the traveling track of the crane, and a suspension beam is arranged at the top of the crane; and the device further comprises the supporting framewhich can be placed in the rolling mill and is supported by the supporting beam of the crane entering the rolling mill, lifting lugs or hanging holes are formed in the peripheral ends of the supporting frame; and a supporting rotating shaft with changeable rotating positions is arranged at the position, opposite to the supporting frame, of the supporting beam, and an avoiding space capable of preventing interference with guide and guard plates in the rolling mill is formed in a frame body of the supporting frame.

Description

technical field [0001] The invention relates to a device for disassembling and replacing stand rolls at the entrance and exit of a rolling mill. Background technique [0002] The 1580 rolling mill stand roll is an important part of the rolling line, and the R1 and R2 rolling mills each have two, such as figure 1 As shown, the rolling mill rolls 110 and 120 are located at the entrance and exit sides of the rolling mill, and the rack rolls are the key components of the rolling mill. The rack rolls of this machine are located inside the rolling mill, and the installation opening is 1920. Since the 1580 rolling mill was designed in Japan, It is very compact in structure, so it is very difficult to disassemble and replace. During the replacement process, it will cause faults caused by the installation of the rack rollers, and the processing time of the faults is relatively long. [0003] This is because the rack rolls are installed inside the rolling mill, and there are upper an...

AI Technical Summary

Problems solved by technology

[0010] 1. The pressing force of the inclined wedge is relatively large, and the rollers of the frame cannot be lifted out. Multiple guide chains are needed to adjust the position, and the lower part of the rollers is small. It is difficult to find a suitable jack and a suitable position, and the processing time is long. Disassembly difficulty;

[0011] 2. After the rack rollers are removed, it is necessary to use multiple guide chains to lead out, and multiple personnel should pay attention to the positions, etc. The situation of crooked pulling and slanting lifting occurs from time to time, and the safety problem is prominent; at the same time, it is necessary to cooperate with the lifting by driving. During the period, other Maintenance projects using driving vehicles cannot be constructed, which consumes a lot of manpower and material resources

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