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Lateral support structure for eighteen-roll mill

A technology of side support and 18 rolls, which is applied in the field of stainless steel cold rolling, can solve the problems of insufficient lubrication, low reliability of the support device, small outer diameter of the mandrel, etc., double the lubrication efficiency, save the thickness of the inner ring, increase the Effect of Mandrel Diameter

Active Publication Date: 2017-02-22
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the reliability of the supporting device caused by the small outer diameter of the mandrel and insufficient lubrication of the supporting device of the existing 18-high rolling mill, especially when the rolling mill increases the rolling speed or performs heavy-load rolling low problem

Method used

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  • Lateral support structure for eighteen-roll mill
  • Lateral support structure for eighteen-roll mill
  • Lateral support structure for eighteen-roll mill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] like figure 1 , Image 6 and Figure 7 As shown, the present embodiment provides a side support structure of an eighteen-high rolling mill, including a side support swing arm support 4, on which a side support roll 8 and a mandrel 1 are installed, and the mandrel 1 is a whole shaft formed by connecting multiple segmented mandrels through seams. The two ends of the mandrel 1 are equipped with a pressure plate 5, and the pressure plate 5 fixes the mandrel 1 to the side support swing arm support through bolts. 4; a plurality of evenly spaced backing bearings 2 are arranged in series on the mandrel 1, and partitions 3 are arranged between adjacent backing bearings 2, and the partitions 3 are fixed to the side support swing arm support 4 by bolts Above; the backing bearing 2 is composed of a bearing outer ring 201 and a bearing roller 202 , and the bearing roller 202 is in rolling contact with the mandrel 1 .

[0031] The working principle of the side support structure of...

Embodiment 2

[0037] On the basis of Example 1, such as figure 1 and figure 2 As shown, the two ends of each of the backing bearings 2 are provided with a sealing retaining ring 10 sleeved on the mandrel 1, and the outer end of the sealing retaining ring 10 is provided with an adjustment ring 7 sleeved on the mandrel 1. The ring 7 is located between the sealing stop ring 10 and the partition 3 .

[0038] The backing bearing 2 in this embodiment adopts a structure without an inner ring, and the backing bearing rollers 202 roll directly on the mandrel 1 , and the diameter of the mandrel 1 can be increased, thereby improving the rigidity of the mandrel 1 .

[0039] But a problem that cannot be ignored is: the previous side support structure adopts the design of the backing bearing with the inner ring, and the width of the inner ring can be designed slightly wider than the distance between the two ends of the rolling element, as the axial clearance of the backing bearing; at the same time , ...

Embodiment 3

[0042] On the basis of Example 2, such as image 3 , Figure 4 and Figure 5As shown, the annulus of the sealing stop ring 10 and the separator 3 are provided with a groove 16 in the axial direction, and the annulus of the adjustment ring 7 is provided with a through hole in the axial direction, and the pin shaft 6 passes through the through hole. , and both ends are stuck in the groove 16 of the sealing stop ring 10 and the separator 3 respectively.

[0043] Regarding the rotation of the backing bearing 2 mentioned in Embodiment 2, the seal stop ring 10 and the adjustment ring 7 will follow the rotation of the bearing when there is a certain gap in the axial direction, that is, the relative rotation of the adjustment ring 7 and the seal stop ring 10 questions such as image 3 , Figure 4 and Figure 5 As shown, a through hole is designed on the adjusting ring 7, the pin shaft 6 passes through the through hole and both ends protrude from the end face of the adjusting ring...

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Abstract

The invention provides a lateral support structure for an eighteen-roll mill. Sectional spindles are connected by seam allowances so as to form a whole spindle; a plurality of backing bearings are uniformly distributed on the spindle; the backing bearings are free from inner ring; separating plates, sealing baffle rings and adjusting rings are designed at the two ends of each of the backing bearings; a hole is formed on each of the adjusting rings; pin shafts penetrate through the holes; grooves are formed on the separating plates and the sealing baffle rings; the pin shafts are blocked in the grooves, so as to achieve an anti-rotating function. The lateral support structure is free from the thickness of the inner ring, the diameter of the spindle can be effectively increased and the support rigidity of the spindle can be increased; due to the design of the sectional spindles, the quantity of the lubricating points corresponding each independent lubricating pipeline is halved and the lubricating efficiency is doubled; the bearings away from the oil gas inlet also can be effectively lubricated; the reliability of the lateral support structure is obviously increased; the lateral support structure especially can stably and reliably support under the serious working conditions, such as, rolling for wider strips and larger support force on the rolling side.

Description

technical field [0001] The invention belongs to the technical field of stainless steel cold rolling, and in particular relates to a side support structure of an eighteen-high rolling mill. Background technique [0002] Eighteen-high rolling mills are widely used in continuous cold rolling of stainless steel. Due to the small diameter of the work rolls and poor horizontal rigidity, side support devices are required to support the work rolls in the horizontal direction. [0003] The conventional structure of the eighteen-high rolling mill side support device in this field is as follows: [0004] The two work rolls are supported by four sets of side support devices. Each set of side support devices consists of a side support roll, two rows of backing bearings and side support swing arms. Each row of backing bearings is connected by a mandrel. The inner rings of each backing bearing are separated by separators. The lubrication of the backing bearing is usually in the form of o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B29/00F16C35/12
CPCB21B29/00F16C35/12
Inventor 尤磊苏旭涛黄煜赵晓辉
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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