Device and method capable of rapidly adjusting opening degree of foot rolls of continuous casting crystallizer

Abstract

The invention discloses a device and method capable of rapidly adjusting the opening degree of foot rolls of a continuous casting crystallizer, and belongs to the technical field of a continuous casting crystallizer maintaining device and method. The device and method are used for rapidly adjusting the opening degree of the foot rolls of the continuous casting crystallizer. According to the technical scheme, an adjusting pad is placed between an adjusting sample block and an adjusting cushion block, the thickness of the adjusting pad is matched with the requirement of the opening degree parameter of the foot rolls of the crystallizer, through an expansion lead screw, the adjusting sample block is fixed to the position between the inner arc foot roll and the outer arc foot roll, the inner arc foot roll is adjusted, a lead screw is adjusted, the inner arc foot roll is attached to the adjusting sample block connected with one end of the adjusting cushion block, the outer arc foot roll is adjusted, the lead screw is adjusted, the outer arc foot roll is attached to the other end of the adjusting sample block, finally, a plug rule and an inner diameter micrometer are used for detecting adjusting data, and after errors do not exist, an inner arc foot roll frame bolt and an outer arc foot roll frame bolt are fastened. The opening degree of the foot rolls can be rapidly adjusted, the work efficiency is improved by more than 10 times, the repairing period of the crystallizer is shortened while the adjusting precision of the opening degree of the foot rolls is ensured.

Description

technical field [0001] The invention relates to a device and method for quickly adjusting the opening degree of a foot roll of a continuous casting crystallizer, which is used for improving the efficiency of off-line repairing of the crystallizer, and belongs to the technical field of continuous casting crystallizer maintenance equipment and methods. Background technique [0002] There is a set of foot rolls at the bottom of the inner and outer arc copper plates of the large slab continuous casting crystallizer. Each set of foot rolls is connected in series by three roller tables and a mandrel. The technical requirement is that the parallelism error between the outer arc foot rolls and the copper plate is 0-0.02mm , The opening degree of the inner arc foot roller and the outer arc foot roller is 205.8mm, and the error is 0-0.2mm. The traditional method of adjusting the opening of the foot roll is to first adjust the parallelism between the outer arc foot roll and the copper ...

AI Technical Summary

Problems solved by technology

Because the roller tables are connected in series, when adjusting other selected points, the adjusted point size is often changed, and it needs to be adjusted again. In this way, the six adjustment points affect each other, and the adjustment is very cumbersome. It needs to be repeated to meet the technical requirements. Long operation time and low efficiency

This situation has not been effectively resolved so far, which makes the maintenance process of the crystallizer take too long in the link of adjusting the opening of the foot roll, which affects the maintenance progress of the crystallizer, and it is very necessary to improve it.

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