Device and method for disassembling and assembling lifting track beam in rolling mill

Abstract

The invention discloses a device and a method for disassembling and assembling a lifting track beam in a rolling mill, and relates to the technical field of roller replacement of rolling mills. The device for disassembling and assembling the lifting track beam in the rolling mill comprises the lifting track beam, lifting beams, a guiding plate, guiding plate lifting oil cylinders, process track beams, traveling bogies, lifting beam hanging corners and pin shafts. The lifting track beam is connected with the lifting beams through chain blocks and steel wire ropes; the lifting beam hanging corners are fixed onto the guiding plate; the guiding plate and the guiding plate lifting oil cylinders are fixedly connected; the lifting beams and the lifting beam hanging corners are fixedly connected through the pin shafts; the two traveling bogies are arranged under the lifting track beam and placed on the process track beams; and one end of each traveling bogie is connected with a supporting roller push-and-pull cylinder. The device and the method for disassembling and assembling the lifting track beam in the rolling mill provided by the invention solve the problem that the lifting track beamin the rolling mill cannot be replaced, and are safe and high-efficient; and no other unrelated parts needs to be disassembled for replacement, so that the overhauling time is saved, and the labor intensity is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of roll changing in rolling mills, in particular to a device for disassembling and assembling a lifting rail beam in a rolling mill and a method for disassembling and assembling the lifting rail beam in a rolling mill. Background technique [0002] Heavy plate rolling mills need to replace backup rolls and work rolls regularly. When changing rolls, a very important mechanism is to lift the track beam. This beam weighs more than 20 tons per piece. There are four hydraulic cylinders for each entrance and exit of the rolling mill. The lifting is controlled, and it is used to lift the back-up roll to a certain height when changing the roll, and the back-up roll is pulled out of the rolling mill by the back-up roll push-pull cylinder. According to the design, this beam does not need to be replaced, so after it is installed, no consideration is given to how to disassemble and replace it. It cannot be lifted direct...

AI Technical Summary

Problems solved by technology

[0005] The common feature of the above two patents is that special tools are placed on the work roll change track to implement the replacement operation. The work roll change track is all inside the rolling mill archway, and the outside of the rolling mill archway is a floor cover. It is impossible to use the work roll track The parts are moved out of the rolling mill, because the roll change track is broken after the floor cover is hoisted away, and there is no track to support it

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