Roll changing mechanism for working roll of rolling mill

Abstract

The invention discloses a roll changing mechanism for a working roll of a rolling mill. An upper bearing seat and a lower bearing seat are arranged on an installing seat of a work side and an installing seat of an operating side respectively. The shaft axis of the upper bearing seat and the shaft axis of the lower bearing seat are arranged in parallel. An upper working roll and a lower working roll penetrate through the upper bearing seat and the lower bearing seat respectively. An equal-height hinge pin is fixedly arranged on the upper surface of the lower bearing seat at the working side. A depth hole and a shallow hole are formed in the bottom face of the upper bearing seat at the working side. Another equal-height hinge pin is fixedly arranged on the upper surface of the lower bearing seat at the operating side. A depth hole and a shallow hole are formed in the bottom face of the upper bearing seat at the operating side. According to the structure of the roll changing mechanism for the working roll of the rolling mill, the equal-height hinge pin is included on the upper surface of the lower bearing seat, and two holes with different depths are formed in the bottom of the upper bearing seat correspondingly, the function of adding a height-equal block manually is realized, and fast, convenient and safe roll changing is realized.

Description

technical field [0001] The invention belongs to the technical field of metallurgical rolling equipment, can meet the rapid roll change of work rolls of a four-high rolling mill, and relates to a work roll change structure of a rolling mill. Background technique [0002] In rolling mill equipment, work roll change is an indispensable process. In four-high reversible hot and cold rolling mills, since the upper work roll has no track, it can only be carried out by the lower work roll when changing rolls. When changing rolls, the upper and lower work rolls must not touch each other. Therefore, before changing the work rolls, it is necessary to place a contour pad between the upper and lower bearing seats on the transmission side and the operation side. block, so that the bearing housings can contact each other, and smoothly pull out the upper and lower work rolls together. Due to the limitation of the position of the transmission side, it is extremely inconvenient, time-consumin...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a roll changing structure for the working rolls of a rolling mill, which solves the problems in the prior art that when changing the working rolls, it is necessary to manually place contour blocks, the replacement of the working rolls is time-consuming and laborious, and the problem of low work efficiency

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