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Support roll for a rolling mill and its manufacture method

A technology for supporting rolls, rolling mills, applied in the direction of rolls, metal rolling, manufacturing tools, etc.

Inactive Publication Date: 2011-06-08
SMS DEMAG AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In support rollers produced according to this known construction with a large overall weight, there are also the above-mentioned disadvantages with regard to transport, etc., as in a single-component construction.

Method used

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  • Support roll for a rolling mill and its manufacture method
  • Support roll for a rolling mill and its manufacture method
  • Support roll for a rolling mill and its manufacture method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0038] exist figure 1 A support roller 1 is shown in a perspective sectional view. The backup roll 1 consists of a sleeve 2 and a roll shaft 3 . According to the invention, the roll shaft 3 is formed from a left half-journal 4 and a right half-journal 5 . The support of the bearing is formed at the outer end.

[0039] The sleeves 2 have a frusto-conical shape on the inside, starting in each case from the end faces 6 , 7 . For better positioning of the half-journals 4 , 5 in the sleeve 2 , the half-journals 4 , 5 each have a positioning edge 8 , 9 .

[0040] In the construction shown, the left half-spindle 4 has a threaded bore 10, while in the right half-spindle 5 a through-hole 11 is introduced, through which a pretensioning screw (not shown) can be inserted.

[0041] exist figure 2 Another solution can be seen in . The left side journal 4 is designed such that it is inserted into the sleeve 2 over a large length. The sleeve 2 is formed at its right-hand end, for exam...

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PUM

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Abstract

Disclosed is a support roll (1) for a rolling mill, such as a plate rolling mill, flat rolling mill, or similar, comprising a jacket (2) and a roll shaft (3) which is embodied in several parts. The invention also relates to a method for producing a support roll (1).

Description

technical field [0001] The invention relates to a back-up roll of a rolling mill, such as a plate mill, a slab mill or the like, consisting of a sleeve and a roll shaft, and a method for producing such a back-up roll. Background technique [0002] On a flat track, the known support rolls of a multi-roll mill stand for hot or cold rolls are constructed as a single component. For the manufacture of back-up rolls weighing more than 120 tons, used in particular in plate mill stands, two manufacturing possibilities are known: [0003] a) The backup roll is cast and then forged and machined in a die forging. [0004] -Single material roll- [0005] b) The support rolls are cast by means of a double casting method and consist of a hard, wear-resistant material in the area of ​​the roll body, while in the journal and in the core area of ​​high-quality steel with high alternating bending strength , tough material composition. This is followed by machining. [0006] -Multi-materi...

Claims

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Application Information

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IPC IPC(8): B21B27/03
Inventor J・莫克尔A・克莱因H・-A・米勒J・芒克J・索勒M・伯格
Owner SMS DEMAG AG