Fast repair spare part of shaft end of cooling table roller way and use method thereof

Abstract

The invention relates to a fast repair spare part of a shaft end of a cooling table roller way and a use method thereof. The fast repair spare part of the shaft end comprises a shaft end body, and the shaft end body comprises a shaft rod and a shaft end base, wherein the shaft rod and the shaft end base are integrally formed, and the outer diameter of the shaft end base is greater than the outer diameter of the shaft rod. A cylindrical shaft end inner hole is formed in the middle of one end of the shaft end base, an inner chamfer is arranged at the open end of the shaft end inner hole, and an outer chamfer is arranged at the end of the shaft rod. In the use process, the spare part of the shaft end is preheated at high temperature, then is installed on a cutting shaft section of the old cooling table roller way in an interference fit assembly mode at high temperature and is fast cooled by cooling water, and finally electric-arc welding is carried out on the connection part for firm connection. The spare part of the shaft end is simple and reliable in structure, the old roller way can be quickly and effectively repaired, the maintenance time is greatly reduced, and the repaired old cooling table roller way is simple and good in practical effect like a new cooling table roller way.

Description

technical field [0001] The invention relates to a component of an air-cooled roller table for steel rolling, in particular to a quick repair spare part for a shaft head of a cooling bed roller table used for an air-cooled roller table for steel rolling and a method for using the spare part for the shaft head. Background technique [0002] The air-cooled roller table for steel rolling is composed of 832 roller tables driven by motors. The function is that the receiving roller table receives the coils dropped by the laying machine and transports the coils smoothly to the loose coil transport roller table. The coils are equidistant on the roller table. Spread out to run. In the actual production process, the shaft head of the roller table will go to the inner ring, which will cause serious wear and tear on the shaft diameter of the bearing assembly of the shaft head of the roller table, resulting in the scrapping of the entire roller table, which can only be repaired by replaci...

AI Technical Summary

Problems solved by technology

In the actual production process, the shaft head of the roller table will go to the inner ring, which will cause serious wear and tear on the shaft diameter of the bearing assembly of the shaft head of the roller table, resulting in the scrapping of the entire roller table, which can only be repaired by replacing the roller table. Replacement of the roller table Long maintenance times and a large number of roller table spare parts are required, which is not only costly but also affects production efficiency

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