Roll changing supporting device for intermediate roll of twenty-high roll mill

Abstract

The utility model relates to a twenty-high roll mill intermediate roll changing supporting device which comprises an upper supporting frame used for lifting an upper intermediate roll and a lower supporting frame erected on a lower intermediate roll. The upper supporting frame comprises an arc-shaped upper supporting plate and an upper supporting arm perpendicularly and fixedly connected with the bottom of the arc-shaped upper supporting plate. The lower supporting frame comprises an arc-shaped lower supporting plate and a lower supporting arm perpendicularly and fixedly connected with the upper portion of the arc-shaped lower supporting plate. The upper supporting arm is provided with an installation hole, the lower supporting arm is provided with a long-strip-shaped hole matched with the installation hole, and the installation hole and the long-strip-shaped hole are fixed through a locking nut after a bolt penetrates through the installation hole and the long-strip-shaped hole. The distance between the arc-shaped upper supporting plate and the arc-shaped lower supporting plate can be flexibly adjusted, so that the rationality of the supporting height can be ensured, and the stability and the supporting strength of the supporting device can be improved through matched use of the auxiliary supporting mechanism.

Description

Technical Field

[0001] The utility model relates to a supporting device, in particular to a supporting device for changing the intermediate rolls of a twenty-roll rolling mill. Background Art

[0002] The 20-high mill is composed of the inner and outer arches, roll system, various mill systems and piping, among which the roll system is a very important component. The second intermediate roll of the 20-high mill adopts a special counterweight device for roll replacement. The second intermediate roll includes an upper intermediate roll and a lower intermediate roll. When replacing the upper intermediate roll, the upper intermediate roll needs to be supported before the replacement operation can be carried out. At present, the main method of supporting is to stack pads, which has unreasonable pad height, poor stability and great safety hazards. At the same time, after the counterweight device is connected, the pads need to be taken out one by one, which affects the efficiency of roll replacement. Utility Model Content

[0003] The utility model aims at the deficiencies of the prior art and provides a support device for changing the intermediate rolls of a twenty-roll rolling mill.

[0004] The utility model is realized through the following technical scheme, providing a twenty-roll mill intermediate roll changing support device, comprising an upper support frame for lifting the upper intermediate roll and a lower support frame mounted on the lower intermediate roll; the upper support frame comprises an arc-shaped upper support plate and an upper support arm vertically fixed to the bottom of the arc-shaped upper support plate; the lower support frame comprises an arc-shaped lower support plate and a lower support arm vertically fixed to the upper part of the arc-shaped lower support plate; a mounting hole is provided on the upper support arm, and a long strip hole matching the mounting hole is provided on the lower support arm, and the mounting hole and the long strip hole are penetrated by bolts and then fixed by locking nuts.

[0005] Preferably, in order to improve the stability and support strength of the support device, the upper support arm and the lower support arm are connected by an auxiliary support mechanism, and the auxiliary support mechanism includes two sets of support components, and the two sets of support components are respectively arranged on both sides of the lower support arm.

[0006] Preferably, each support assembly includes a support fixedly connected to the lower support arm and an ear plate fixedly connected to the upper support arm, the lower end of the support rod is hinged to the support, and the upper end of the support rod can rotate and fit into a notch provided on the ear plate.

[0007] Preferably, an upper fixing nut and a lower fixing nut are threadedly connected on the support rod, and the upper fixing nut and the lower fixing nut are respectively located on both sides of the ear plate.

[0008] Preferably, a rubber pad is installed on the top surface of the arc-shaped upper supporting plate, and a rubber pad is installed on the bottom surface of the arc-shaped lower supporting plate.

[0009] The beneficial effects of the utility model are:

[0010] 1. The distance between the arc-shaped upper support plate and the arc-shaped lower support plate can be flexibly adjusted, so the rationality of the support height can be ensured. Through the coordinated use of the auxiliary support mechanism, the stability and support strength of the support device can be improved.

[0011] 2. The roll changing efficiency is increased by 15-20 minutes through the use of this device. The device has a simple structure and low modification cost, and can be widely used for changing the intermediate rolls of a twenty-high rolling mill.

[0012] 3. After loosening the locking nut, the upper support arm can be swung to achieve folding and storage for easy storage.

[0013] 4. The spacing between the arc-shaped upper support plate and the arc-shaped lower support plate can be adjusted by cooperating with the mounting holes, the long holes and the bolts. The spacing adjustment makes the arc-shaped upper support plate effectively contact with the upper middle roller, and the arc-shaped lower support plate effectively contact with the lower middle roller, thereby ensuring the supporting effect. Moreover, when the spacing between the arc-shaped upper support plate and the arc-shaped lower support plate is adjusted, the arc-shaped upper support plate is lifted vertically instead of rotating. Therefore, the support device can be placed between the upper middle roller and the lower middle roller before adjusting the spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the upper support frame of the utility model;

[0015] Figure 2 This is a front view of the lower support frame of the utility model;

[0016] Figure 3 This is a front view of the upper support frame and the lower support frame of the utility model after being assembled;

[0017] Figure 4 This is a front view of the ear plate of the utility model;

[0018] As shown in the figure:

[0019] 1. Upper support arm, 2. Mounting hole, 3. Ear plate, 4. Arc-shaped upper support plate, 5. Lower support arm, 6. Arc-shaped lower support plate, 7. Support, 8. Support rod, 9. Long hole, 10. Lower fixing nut, 11. Upper fixing nut, 12. Notch. DETAILED DESCRIPTION

[0020] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0021] like Figure 1-4As shown, the utility model includes an upper support frame for lifting the upper intermediate roller and a lower support frame mounted on the lower intermediate roller. The upper support frame includes an arc-shaped upper support plate 4 and an upper support arm 1 vertically fixed to the bottom of the arc-shaped upper support plate 4. The lower support frame includes an arc-shaped lower support plate 6 and a lower support arm 5 vertically fixed to the upper part of the arc-shaped lower support plate 6. A mounting hole 2 is provided on the upper support arm 1, and a long hole 9 matching the mounting hole 2 is provided on the lower support arm 5. The mounting hole 2 and the long hole 9 are penetrated by bolts and fixed by locking nuts.

[0022] The spacing between the arc-shaped upper support plate 4 and the arc-shaped lower support plate 6 can be adjusted by the cooperation of the mounting hole 2, the long hole 9 and the bolt. The arc-shaped upper support plate 4 can effectively contact the upper middle roller, and the arc-shaped lower support plate 6 can effectively contact the lower middle roller to ensure the support effect. When the spacing between the arc-shaped upper support plate 4 and the arc-shaped lower support plate 6 is adjusted, the arc-shaped upper support plate 4 is lifted vertically instead of rotating. Therefore, the support device can be placed between the upper middle roller and the lower middle roller before adjusting the spacing. At the same time, after loosening the locking nut, the upper support arm 1 can be swung to achieve folding and storage for easy storage.

[0023] In this embodiment, in order to improve the stability and support strength of the support device, the upper support arm 1 and the lower support arm 5 are connected by an auxiliary support mechanism, and the auxiliary support mechanism includes two sets of support assemblies, and the two sets of support assemblies are respectively arranged on both sides of the lower support arm 5. Each set of support assemblies includes a support 7 fixedly connected to the lower support arm 5 and an ear plate 3 fixedly connected to the upper support arm 1, the lower end of the support rod 8 is hinged to the support 7, the upper end of the support rod 8 can rotate and be embedded in the notch 12 provided on the ear plate 3, and the upper fixing nut 11 and the lower fixing nut 10 are threadedly connected to the support rod 8, and the upper fixing nut 11 and the lower fixing nut 10 are respectively located on both sides of the ear plate 3.

[0024] In this embodiment, a rubber pad is installed on the top surface of the arc-shaped upper supporting plate 4, and a rubber pad is installed on the bottom surface of the arc-shaped lower supporting plate 6.

[0025] During specific use, the support device is placed between the upper middle roller and the lower middle roller, and the distance between the arc-shaped upper support plate 4 and the arc-shaped lower support plate 6 is adjusted so that the arc-shaped upper support plate 4 rests on the upper middle roller, and the arc-shaped lower support plate 6 rests on the lower middle roller. It is further supported by an auxiliary support mechanism. After it is firmly supported, the second middle roller is replaced with the help of a special counterweight device.

[0026] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A twenty-high mill intermediate roll changing support device, characterized in that: It includes an upper support frame for lifting the upper intermediate roller and a lower support frame mounted on the lower intermediate roller; the upper support frame includes an arc-shaped upper support plate and an upper support arm vertically fixed to the bottom of the arc-shaped upper support plate; the lower support frame includes an arc-shaped lower support plate and a lower support arm vertically fixed to the upper part of the arc-shaped lower support plate; a mounting hole is provided on the upper support arm, and a long hole matching the mounting hole is provided on the lower support arm, and the mounting hole and the long hole are penetrated by bolts and fixed by locking nuts.

2. The twenty-high mill intermediate roll changing support device according to claim 1, characterized in that: The upper support arm and the lower support arm are connected through an auxiliary support mechanism, and the auxiliary support mechanism includes two sets of support components, and the two sets of support components are respectively arranged on both sides of the lower support arm.

3. The twenty-high mill intermediate roll changing support device according to claim 2, characterized in that: Each support assembly includes a support fixedly connected to the lower support arm and an ear plate fixedly connected to the upper support arm. The lower end of the support rod is hinged to the support, and the upper end of the support rod can rotate and fit into a notch provided on the ear plate.

4. The twenty-high mill intermediate roll changing support device according to claim 3, characterized in that: An upper fixing nut and a lower fixing nut are threadedly connected on the support rod, and the upper fixing nut and the lower fixing nut are respectively located on two sides of the ear plate.

5. The twenty-high mill intermediate roll changing support device according to claim 1, characterized in that: A rubber pad is installed on the top surface of the arc-shaped upper supporting plate, and a rubber pad is installed on the bottom surface of the arc-shaped lower supporting plate.

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