Intermediate cooling foot roller

Abstract

The invention relates to an intermediate cooling foot roller which comprises a roller body and a shaft, wherein the roller body is composed of an outer roller and an inner roller; the outer roller and the inner roller are welded together by a connecting flange; roller water inlet holes are formed in two ends of the inner roller; an intermediate water cavity is formed between the outer roller and the inner roller; longitudinal reinforcing ribs are arranged between the outer roller and the inner roller; bearings are respectively arranged at two radial ends of the shaft; the inner roller is connected with the shaft through the bearings; a bearing sealing ring, a shaft sealing ring and an outer sealing ring are sequentially arranged between the bearings and the connecting flange; a water inlet hole, a water outlet hole, a bearing lubricating oil duct and a shaft lubricating oil duct are respectively formed in two axial ends of the shaft; a water diversion hole is formed in the radial direction of the shaft, so that cooling water enters the intermediate water cavity through the roller water inlet holes and the water cavity between the shaft and the roller via the water inlet hole; and the two ends of the shaft are fixedly arranged on a shaft seat. The problems existing in the original foot roller that the bearings and the friction sealing device are easily damaged at a high temperature and are high in cost and poor in cooling and the like are solved.

Description

[0001] Technical field: [0002] The invention relates to a middle-layer cooling foot roll, specifically a middle-layer cooling foot roll with separated roller shafts. It specifically changes the overall structure of the foot roll. An integral part of the segment. [0003] Background technique: [0004] Due to the understanding of the steel mills for many years, the temperature of the steel billets in each steel mill is extremely high (about 500 degrees or more), and the surrounding environment is very harsh. The bearings and bearing seats work at high temperatures, and the cooling effect is not good. Ideal, so the damage rate is extremely high, and the price of each set of rotary friction sealing device is very expensive, and it needs to be replaced frequently. The use of foot rolls is difficult to cool, short in life, high in manufacturing costs, and extremely difficult to maintain. Based on these problems, a new generation of foot roll products was invented, which solved th...

AI Technical Summary

Problems solved by technology

[0004] Due to the understanding of the steel mills for many years, the temperature of the steel billets in each steel mill is extremely high (about 500 degrees or more), and the surrounding environment is very harsh. The bearings and bearing seats work at high temperatures, and the cooling effect is not good. Ideal, so the damage rate is extremely high, and the rotary friction seal is very expensive per set and needs to be replaced frequently

The use of foot rolls is difficult to cool, short in life, high in manufacturing costs, and extremely difficult to maintain. Based on these problems, a new generation of foot roll products was invented, which solved the problems that the leaders and technicians of various steel mills wanted to change for many years but were difficult to change.

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