Roll replacing system for working roll

Abstract

The invention provides a roll replacing system for a working roll. The roll replacing system comprises an axle frame, a transverse movement device, a push-pull overturning device and a roll replacing trailer, wherein the axle frame comprises a fixed axle frame and a movable axle frame; a transverse movement roll replacing vehicle of the transverse movement device comprises a No.1 transverse movement roll replacing vehicle frame and a No.2 transverse movement roll replacing vehicle frame; the two transverse movement roll replacing vehicle frames are connected to form a whole body by a pin shaft; a piston rod of a transverse movement hydraulic cylinder is connected with the No.2 transverse movement roll replacing vehicle frame and the No.1 transverse movement roll replacing vehicle frame and the No.2 transverse movement roll replacing vehicle frame are controlled by push-pull movements; a transverse movement roll way comprises a fixed transverse movement rail and a swinging transverse movement rail; one end of the swinging transverse movement rail is hinged with the fixed transverse movement rail and the other end of the swinging transverse movement rail is in butt joint with the fixed transverse movement rail; the swinging transverse movement rail is connected with a piston rod of a swinging hydraulic cylinder; the push-pull overturning device comprises a frame body, a back-to-back type push-pull hydraulic cylinder and two overturning hydraulic cylinders; the roll replacing trailer is a full-wheel transmission roll replacing trailer. The roll replacing system for the working roll has the beneficial effects of strong reliability, high automation degree and capability of realizing rapid and full-automatic roll replacement; the roll replacing operation is simplified and the weight of equipment is optimized.

Description

technical field [0001] The invention belongs to the technical field of metallurgical equipment, in particular to hot continuous rolling equipment technology, and is suitable for a work roll changing device of a rough rolling mill on a hot continuous rolling line. Background technique [0002] In the prior art, there are two types of work roll changing systems applied to hot continuous rolling four-high roughing mills: one is to use a traversing train and a hydraulic cylinder to push and pull the work roll system, and this structure is more reliable; the other is It is to use the traversing train to cooperate with the roller changing trailer to drag the work roll system, and the reliability of this structure is poor. The disadvantages of the prior art are: the above two structures require manual participation in the roll changing operation, and both need to use tens of tons of fixed bridges and traversing trains. When replacing the backup rollers, the bridges and traversing t...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, there are two types of work roll changing systems applied to hot continuous rolling four-high roughing mills: one is to use a traversing train and a hydraulic cylinder to push and pull the work roll system, and this structure is more reliable; the other is The work roll system is dragged by the traversing train and the roll changing trailer, which has poor reliability

The disadvantages of the prior art are: the above two structures require manual participation in the roll changing operation, and both need to use tens of tons of fixed bridges and traversing trains. When replacing the backup rollers, the bridges and traversing trains need to be transported It is time-consuming and labor-intensive whether it is hoisted or dragged by hydraulic cylinders outside the roll-changing channel of the backup roll

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