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Rapid supporting roller changing mechanism for plate strip rolling mill

A roll changing mechanism and technology of supporting rolls, applied in the direction of metal rolling mill stand, metal rolling stand, metal rolling, etc., can solve problems such as affecting productivity, deformation and damage of connecting parts, increasing roll changing time, etc. The effect of convenient maintenance, reduction of auxiliary rolling time, and saving of roll change time

Active Publication Date: 2015-04-08
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of changing rolls will not only increase the time for changing rolls, but also easily deform and damage the connecting parts, directly affecting productivity

Method used

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  • Rapid supporting roller changing mechanism for plate strip rolling mill
  • Rapid supporting roller changing mechanism for plate strip rolling mill
  • Rapid supporting roller changing mechanism for plate strip rolling mill

Examples

Experimental program
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Embodiment Construction

[0018] The structural principle and working principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] combine figure 1 , image 3 , Figure 4 , The present invention provides a fast roll changing mechanism for back-up rolls used in strip mills, the device includes a back-up roll hook 3 and a connecting shaft 8, and is driven by an oil cylinder 6. The support roller hook 3 is detachably connected to the support roller bearing housing 13 . Connecting shaft 8 is fixed on the support roller hook 3 by bearing 7 and bearing gland 14, and described bearing 7 can select high-intensity self-lubricating bearing for use, can install fastening device 16 and fix at its end, prevents from coming off. The cross-section of the middle part of the connecting shaft 8 is a flat shape symmetrically cut off on both sides, which is convenient for entering the shaft hole 18 of the oil cylinder joint 9 . One end of connecting shaft...

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Abstract

The invention relates to a rapid supporting roller changing mechanism for a plate strip rolling mill. The rapid supporting roller changing mechanism comprises a supporting roller hook (3) and a connecting shaft (8) and is driven by an oil cylinder (6). The rapid supporting roller changing mechanism is characterized in that the connecting shaft (8) is fixed on the supporting roller hook (3) through a bearing and a bearing gland (14), the cross section of the middle of the connecting shaft (8) is in a flat shape with two symmetrically-scraped sides, a shaft hole (18) and an opening both corresponding to the connecting shaft (8) are formed at one end of an oil cylinder connector (9), the diameter of the shaft hole (18) is not less than the section diameter of the connecting shaft (8), a gap at the opening of the end portion of the shaft hole (18) is larger than the distance between two symmetric planes of the connecting shaft (8) and smaller than the section diameter of connecting shaft (8), the piston rod (19) of the oil cylinder (6) is detachably connected at one end of the oil cylinder connector (9), and the oil cylinder connector (9) is fixed on a frame (4) with wheels (5). The rapid supporting roller changing mechanism has the advantages that convenience in operation and maintenance is realized, roller changing time is saved, and auxiliary rolling time is reduced.

Description

technical field [0001] The invention relates to a metallurgical plate and strip rolling equipment, in particular to a support roll quick roll change mechanism for a plate and strip rolling mill. Background technique [0002] In order to save roll changing time and improve strip productivity, fast roll changing devices for backup rolls are widely used in strip mills. The support roll quick roll change device is driven by the oil cylinder to pull out or push the support roll, and the big hook on the head of the oil cylinder is connected with the big hook on the support roll through the connecting shaft. When feeding the rollers, first hoist the support rollers on the roller changing track, then extend the oil cylinder so that the semi-circular groove of the hook on the head of the oil cylinder is aligned with the semi-circular groove of the hook of the support roller, then install the connecting shaft and then push the support roller into torii. The output roller is opposite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B31/10
Inventor 窦锋郭军闫成琨
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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