Device for drawing intermediate roll of eighteen-roll cold-rolling mill

Abstract

The invention relates to a device for drawing an intermediate roll of an eighteen-roll cold-rolling mill. The invention adopts a technical scheme that: the operating end and transmission end of the intermediate roll are arranged on an operating-side intermediate roll bearing block and a transmission-side intermediate roll bearing block through an inner ring-free FC bearing respectively; the operating end of the intermediate roll is sleeved and fixed with a helical geared sleeve; the outer sidewall of the inner end of the helical geared sleeve is provided with an outside thread; an internal thread is arranged in the operating-side intermediate roll bearing block and is meshed with the outside thread; the outer sidewall of the outer end of the helical geared sleeve is provided with a driven gear of which one side is provided with a drawing gear meshed with the driven gear; the drawing gear is arranged on the operating-side intermediate roll bearing block through a drawing gear pin shaft, is fixedly connected with the drawing gear pin shaft and can synchronously rotate with the drawing gear pin shaft; and the outer end of the drawing gear pin shaft is provided with a crank hole. The device has the characteristics of greatly simplifying the structure of the drawing device, reducing occupied space of the drawing device and facilitating the replacement of the intermediate roll, along with compact and rational structure, convenient roll replacement and low maintenance cost.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment, and in particular relates to a manual twitching device for an intermediate roll of a high-precision strip eighteen-high cold rolling mill. Background technique [0002] In order to enhance roll bending efficiency, expand roll shape adjustment range, and stabilize plate shape quality, four-roll and above rolling mills are usually equipped with work roll or intermediate roll twitching devices. The twitching device of the existing rolling mill generally adopts the way of installing the twitching bracket on the rolling mill archway, and driving the twitched roll bearing seat through multiple hydraulic cylinders, motor reducers, hydraulic motor reducers or manual worm gear reducers. Such a twitching method , The twitching device must be installed on the transmission side of the rolling mill, and often leads to adverse consequences such as a large structure of the twitching device, inconve...

AI Technical Summary

Problems solved by technology

The twitching device of the existing rolling mill generally adopts the way of installing the twitching bracket on the rolling mill archway, and driving the twitched roll bearing seat through multiple hydraulic cylinders, motor reducers, hydraulic motor reducers or manual worm gear reducers. Such a twitching method , the twitching device must be installed on the transmission side of the rolling mill, and often leads to adverse consequences such as a large structure of the twitching device, inconvenience in changing rolls, and high equipment maintenance costs

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