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Roll-changing equipment for rolling mill

A rolling mill and equipment technology, applied in the field of roll changing equipment, can solve problems such as the inability to easily and conveniently replace work roll components

Inactive Publication Date: 2004-04-21
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this roll changing device cannot simply and conveniently replace the work roll assembly

Method used

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  • Roll-changing equipment for rolling mill
  • Roll-changing equipment for rolling mill
  • Roll-changing equipment for rolling mill

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] A rolling mill roll changing apparatus according to a preferred embodiment of the present invention will now be described with reference to the accompanying drawings, but it should be noted that the present invention is not limited thereto. The roll changing plant of the present invention is a device that can be easily applied to a new plant and can also be used particularly easily for retrofits. Figure 11 Shown is the technology of the existing three-roller type roll changing device.

[0043] figure 1 A side view showing the roll changing apparatus according to the first embodiment of the present invention. figure 2 means along figure 1 A cross-sectional view taken along the line II-II. Figure 3 is along the figure 1 The view obtained when sectioning on line III-III in , shows the state at the beginning of the roll change. Figure 4 for along figure 1 The view obtained when sectioning on line IV-IV in , shows the state when the roll change is completed.

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PUM

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Abstract

In a roll changing apparatus of a rolling mill, a stationary roll changing table is provided on a front surface of a work side of the rolling mill. Pull-out rails and upwardly and downwardly movable shift rails are provided on the roll changing table. Shift blocks are provided for detachably attaching to a work roll assembly which has been pulled out, to move the work roll assembly sideways in a shifting direction. Only the work roll assembly to be pulled out can be shifted easily, and replaced with a new work roll assembly without the use of an elaborate foundation structure. Thus, work rolls can be changed swiftly.

Description

technical field [0001] The invention relates to a roll changing device of a rolling mill. Background technique [0002] The shape of the roll changing equipment in the existing four-high rolling mill is as follows Figure 11 shown. Figure 11 The principle of the existing so-called three-roll roll changing device is shown. As shown in the figure, a work roll assembly 3 consisting of an upper work roll 1 and a lower work roll 2 equipped with chocks is supported by upper and lower backup rolls 4 and 5 . The upper and lower back-up rolls 4 and 5 and the work roll assembly 3 are installed on a slide guide frame 6, and the slide guide frame 6 consists of a pair of rails 7 so that it can be loaded into and unloaded from one working side of the rolling mill 8. way support. The ground of the rolling mill 8 is as high as the position where the lower work roll 2 is located. In the underground portion on the working side of the rolling mill 8, a trench-like space is formed for movin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B31/08B21B31/10
CPCB21B31/103B21B28/00
Inventor 荒谷博史松岛久夫山本干朗三登良纪
Owner MITSUBISHI HEAVY IND LTD