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Upper back-up roll extractor of cluster roll

A roll changing device and a technology for supporting rolls, which are applied to the field of roll changing devices for supporting rolls on a multi-roll mill, can solve problems such as long roll changing time, and achieve the effects of reducing roll changing time, improving production work rate, and being convenient to use.

Active Publication Date: 2009-01-28
CERI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this lifting method, only one upper support roller can be replaced at a time, and the time for changing rollers is long

Method used

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  • Upper back-up roll extractor of cluster roll
  • Upper back-up roll extractor of cluster roll
  • Upper back-up roll extractor of cluster roll

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0025] The specific implementation of the backup roll changing device for a multi-roll rolling mill of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] see figure 1 , 2 and 3, the support roll changing device for a multi-roll rolling mill according to the present invention, comprising a roll changing bracket and a hanger for hanging the roll changing bracket. Wherein: the hanger includes a beam 1, a lifting lug 2 set on the beam 1 and a swingable hanger 7 connected to both ends of the beam 1 through a pin shaft 6, and the two sides of the lifting lug 2 on the beam 1 are provided with limited Position bolts 4; the roller changing bracket includes a vehicle frame 12 and a roller 13 installed on the vehicle frame 12, the vehicle frame 12 includes a main body frame and at least one end has an upward direction on opposite sides of the main body frame. The side guide plate 11 of protrusion 17 preferably makes the space f...

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Abstract

The invention relates to a roll changing device for up-backup rolls of a multi-roll mill. The roll changing device comprises a roll changing bracket, and also comprises a lifting tool for lifting the roll changing bracket, wherein, the lifting tool comprises a beam (1), a lifting lug (2) sheathed on the beam (1) and a swing lifting frame (7) connected with the two ends of the beam (1) by a pin roll (6); and a limit bolt (4) is respectively arranged at the two sides of the lifting lug (2) on the beam (1); the roll changing bracket comprises a carriage (12) and rollers (13) arranged on the carriage (12), the carriage (12) comprises a main body carriage and a side guide (11) which is provided with an upward prominence (17) respectively arranged on at least two end parts of two opposite sides of the main body carriage, and the rollers (13) are distributed at the two sides of the side guide (11). The roll changing device can simultaneously replace two bed rolls, and has the advantages of convenient operation and short roll changing time, and the production operation rate is improved.

Description

technical field [0001] The invention relates to a roll changing device for a rolling mill, in particular to a roll changing device for supporting rolls on a multi-roll rolling mill. Background technique [0002] Rolling mills are commonly used mechanical equipment in the metallurgical industry. Rollers need to be replaced regularly or irregularly after working for a period of time due to fatigue damage or abnormal accidents to ensure product quality. At present, the "improved eight-high rolling mill" used in production, Chinese patent ZL200620137863.4, consists of backup rolls, work rolls and intermediate rolls. Among them: the roller changing bracket of the upper support roller group is configured, and the roller changing bracket can not only move on the middle roller track, but also its body can be raised to hold two sets of upper supporting rollers. When it is necessary to replace the upper back support roll set, it is sent into the roll change bracket to catch the upper...

Claims

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Application Information

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IPC IPC(8): B21B31/12B21B29/00
Inventor 韩培恋韩志勇陈南宁王颖胡晓军
Owner CERI TECH
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