An auxiliary device for changing work rolls in a rough rolling mill and a method for changing rolls

Abstract

The invention discloses a working roll replacement auxiliary device of a rough mill. The working roll replacement auxiliary device comprises a machine frame, a hydraulic cylinder, a first hook body and a second hook body, wherein one end of the hydraulic cylinder is hinged to the machine frame, the other end of the hydraulic cylinder is provided with an ejection rod, the first hook body is connected with the top end of the ejection rod, and is provided with a first push surface and a first hook, a movement piece is arranged under the first hook body, the machine frame is provided with a rail corresponding to the movement piece, one end, away from the hydraulic cylinder, of the rail is provided with a groove, the second hook body is connected onto a working roll, and is provided with a second push surface and a second hook, the second push surface corresponds to the first push surface, and the second hook is buckled together with the first hook. When the movement piece is moved into the groove, the first hook is separated from the second hook. The invention also discloses a working roll replacement method. The working roll replacement auxiliary device has the beneficial effects that the coiling is convenient and rapid, the replacement procedure is simple, the operation is easy, the requirements of customers are met, and the like.

Description

technical field [0001] The invention relates to an auxiliary device for changing work rolls of a rough rolling mill, in particular to an auxiliary device for changing work rolls of a 650 rough rolling mill. The invention also relates to a roll changing method. Background technique [0002] 650 rough rolling mill currently replaces work rolls mainly by driving the reducer with the gear and rack to push or pull out, because the long-term use of the track causes uneven wear and tear, and the work roll end is closely matched with the universal coupling shaft sleeve, so It takes a lot of time to replace. At present, there is no good solution. Contents of the invention [0003] The purpose of the present invention is to address the deficiencies in the above-mentioned prior art, to provide a roughing mill work roll changing auxiliary device, especially a roughing mill work roll changing auxiliary device, which has high working efficiency, quick replacement of work rolls, and sat...

AI Technical Summary

Problems solved by technology

[0002] 650 rough rolling mill currently replaces work rolls mainly by driving the reducer with the gear and rack to push or pull out, because the long-term use of the track causes uneven wear and tear, and the work roll end is closely matched with the universal coupling shaft sleeve, so It takes a lot of time to replace it. At present, there is no good solution

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