Structure for quickly replacing small vertical roll of finishing mill

Abstract

The utility model discloses a structure for quickly replacing a small vertical roll of a finishing mill, which belongs to the technical field of metallurgical equipment and comprises a locking device, a support body and a handle. Two locking devices are detachably arranged on the same side of the supporting body up and down, each locking device comprises a connecting plate, a sleeving hole is formed in the side, away from the supporting body, of each connecting plate, and the two connecting plates are connected to two end shafts of the small vertical roller in a sleeving mode through the sleeving holes respectively; and two handles are fixedly arranged on the other side, far away from the locking device, of the supporting body up and down. The structure for rapidly replacing the small vertical roll of the finishing mill can improve the disassembly and assembly efficiency of the small vertical roll, reduce manual labor, save cost and reduce safety risks.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a structure for quickly replacing small vertical rollers of a finishing mill. Background Art

[0002] The small vertical roller is an important part of the mill entrance guide. Due to the differences in the intermediate billet material, temperature, and rolling speed, the wear of the small vertical roller is inevitable. If the small vertical roller is stuck or the surface is too deeply concave, it will cause the edge of the slab to bulge and crack, and the width to be uneven, which cannot meet the quality requirements of the user. Therefore, the small vertical roller needs to be replaced frequently; the installation position diagram of the small vertical roller is as follows Figure 1 and 2 shown.

[0003] The original maintenance process primarily relied on manual labor to transport, disassemble, install, and adjust the position of the small vertical rollers. However, because the small vertical rollers were located behind the front mill's looper table and inside the entry guide, the workspace was limited, requiring only one person to access the work area and maneuvering. During installation, the small vertical rollers lacked a bearing point at the ends, and their heavy weight made it difficult for the workers to quickly remove and replace them. The original construction steps were as follows: 1. Set the entry guide of the finishing mill to zero position. The three parties confirmed that all energy and medium valves were closed, the mechanical safety pins were inserted, and the appropriate tools were prepared. 2. Use a cutter to remove the bolts from the gland of the small vertical rollers. 3. Enter the mill and use a crowbar to slowly pry the small vertical rollers out of their working position, freeing them from the entry guides. Then, lift the small vertical rollers out with both hands. 4. Install the new small vertical rollers in the reverse order of step 3. 5. After welding the bolts on the gland, the workers were moved to a safe location, and the three parties removed the sign for a test run. The working time required during the construction process is about 1 hour, which cannot meet the roller replacement time requirement. In addition, the replacement operation has high safety risks and seriously consumes physical strength. Utility Model Content

[0004] In view of the above problems, the utility model provides a structure for quickly replacing the small vertical rollers of a finishing mill, so as to solve the problem of long replacement time of the small vertical rollers of a finishing mill in the prior art.

[0005] A structure for quickly replacing small vertical rollers of a finishing mill, comprising: a locking device, a supporting body and a handle;

[0006] Two locking devices are detachably provided on the upper and lower sides of the same side of the support body, each of the locking devices includes a connecting plate, and a socket hole is provided on the side of the connecting plate away from the support body, and the two connecting plates are respectively socketed on the two end shafts of the small vertical roller through the socket holes;

[0007] Two handles are fixedly provided on the upper and lower sides of the support body away from the locking device.

[0008] In some embodiments, a plurality of bolt holes are provided at intervals on both ends of the support body, a connection hole is provided on one side of the connection plate, and the locking device further comprises a nut, which is welded and fixed to the connection plate corresponding to the connection hole;

[0009] The connecting hole corresponds to one of the bolt holes so that the locking device can be fixed to the supporting body by a bolt matched with the nut.

[0010] In some embodiments, the handle is welded and fixed to the support body.

[0011] In some embodiments, a stiffening plate is welded between the end of the handle and the support body.

[0012] In some embodiments, the supporting body and the connecting plate are both steel plates.

[0013] In some embodiments, the handle is a screw.

[0014] In some embodiments, a rubber pad is fixedly provided on the handle.

[0015] Compared with the prior art, the utility model provides a structure for quickly replacing the small vertical rollers of a finishing mill, which can improve the efficiency of disassembling and assembling the small vertical rollers, reduce manual labor, save costs, and reduce safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention and its features, configurations, and advantages will become more apparent upon reading the detailed description of the non-limiting embodiments described below with reference to the accompanying drawings. Like reference numerals indicate like parts throughout the drawings. The drawings are not necessarily drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0017] Figure 1 This is the main view of the installation position of the small vertical roller in the background technology of this utility model;

[0018] Figure 2 This is a top view of the installation position of the small vertical roller in the background technology of this utility model;

[0019] Figure 3 This is a front view of a structure for quickly replacing small vertical rollers of a finishing mill in an embodiment of the present utility model;

[0020] Figure 4 This is a side view of the structure for quickly replacing the small vertical rollers of the finishing mill in the embodiment of the utility model;

[0021] Figure 5 A top view of the structure for quickly replacing the small vertical rollers of the finishing mill in an embodiment of the present utility model;

[0022] In the figure: 1- small vertical roller 2- locking device; 21- connecting plate; 22- nut; 23- socket hole; 3- supporting body; 31- bolt hole; 4- handle; 5- bolt. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0024] like Figures 3-5 As shown, the utility model provides a structure for quickly replacing the small vertical rollers of a finishing mill. Specifically, the structure for quickly replacing the small vertical rollers of a finishing mill comprises: a locking device 2, a support body 3 and a handle 4; two locking devices 2 are detachably provided on the upper and lower sides of the same side of the support body 3, each locking device 2 comprises a connecting plate 21, and a sleeve hole 23 is provided on the side of the connecting plate 21 away from the support body 3 (the size of the sleeve hole 23 is slightly larger than the size of the end shaft of the small vertical roller 1), and the two connecting plates 21 are respectively sleeved on the two end shafts of the small vertical roller 1 through the sleeve holes 23; two handles 4 are welded and fixed on the upper and lower sides of the support body 3 away from the locking device 2, and the handle 4 is fixed to the side of the support body 3 parallel to the support body 3, and the handle 4 partially extends beyond the support body 3 for easy gripping.

[0025] Specifically, a plurality of bolt holes 31 are respectively provided at both ends of the support body 3, a connecting hole is provided on one side of the connecting plate 21, and the locking device 2 further includes a nut 22, which is welded and fixed to the connecting plate 21 corresponding to the connecting hole; the connecting hole corresponds to one of the bolt holes 31, so that the locking device 2 is fixed to the support body 3 by a bolt 5 matching the nut 22, so that the structure for quickly replacing the small vertical rollers of the finishing mill can be used to replace small vertical rollers 1 of different lengths.

[0026] In an embodiment of the present invention, a reinforcing plate is welded between the end portion of the handle 4 connected to the support body 3 and the support body 3 to make the connection between the handle 4 and the support body 3 more stable. Specifically, the support body 3 and the connecting plate 21 are both steel plates, the handle 4 is a screw rod, and a rubber pad is fixed on the handle 4 to facilitate gripping.

[0027] Specifically, the material selection and production of the structure for quickly replacing the small vertical roller of the finishing mill include: the locking device 2 is made of M48 nut 22 and δ=8mm steel plate processed and welded, the support body 3 is made of δ=10mm steel plate, the handle 4 uses M30*175 screw rod, and the bolt 5 uses M24*60 bolt 5.

[0028] When replacing a small vertical roller using the structure for quickly replacing a finishing mill small vertical roller in the present invention, first, the finishing mill entrance guide is set to zero. All three parties confirm that all energy and medium valves are closed and the mechanical equipment safety pins are properly inserted. Meanwhile, the small vertical roller spare parts, accessories, and corresponding tools to be replaced are prepared on site. The eight bolts on the upper and lower end covers of the old small vertical roller are then removed with a cutter. The removed small vertical roller is moved to the edge of the guide using a short crowbar. The locking devices on both sides of the structure for quickly replacing a small vertical roller are respectively inserted into the upper and lower end shafts of the small vertical roller. The support body and the locking devices are then bolted together. After that, the operator can simply grasp the handle with both hands to smoothly remove the small vertical roller and place it in a safe place. When installing the small vertical roller, the procedure for removing the small vertical roller is reversed, and the details will not be detailed here. The bolts on the upper and lower end covers are then tightened in place and welded shut. The operator is then moved to a safe place. After confirmation by the three parties, the equipment is ready for commissioning.

[0029] In summary, the structure for quickly replacing the small vertical rollers of the finishing mill provided by the present invention has at least one of the following beneficial effects:

[0030] 1. It is easy to manufacture and operate, has a reasonable structure, and the materials are easy to find, so ordinary construction workers can operate it.

[0031] Second, the small vertical roller can be quickly replaced, which can save the time from the original 1 hour to about 20 minutes compared with the traditional replacement method, and the number of construction workers is reduced from the original 4 to 2, and the production capacity of the hot rolling mill is increased.

[0032] 3. The installation position of the small vertical roller can be quickly located to avoid the problem of construction workers not being able to take out the small vertical roller due to the small space during dismantling and installation, as well as the problem of excessive construction safety factor.

[0033] Those skilled in the art should understand that they can implement variations based on the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essence of the present invention and will not be described in detail here.

[0034] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A structure for quickly replacing small vertical rollers of a finishing mill, characterized in that: include: Locking device, support body and handle; Two locking devices are detachably provided on the upper and lower sides of the same side of the support body, each of the locking devices includes a connecting plate, and a socket hole is provided on the side of the connecting plate away from the support body, and the two connecting plates are respectively socketed on the two end shafts of the small vertical roller through the socket holes; Two handles are fixedly provided on the upper and lower sides of the support body away from the locking device.

2. The structure for quickly replacing the small vertical rollers of the finishing mill according to claim 1, characterized in that: A plurality of bolt holes are provided at intervals on both ends of the support body, a connecting hole is provided on one side of the connecting plate, and the locking device further comprises a nut, which is welded and fixed to the connecting plate corresponding to the connecting hole; The connecting hole corresponds to one of the bolt holes so that the locking device can be fixed to the supporting body by a bolt matched with the nut.

3. The structure for quickly replacing the small vertical rollers of the finishing mill according to claim 1 is characterized in that: The handle is welded and fixed on the supporting body.

4. The structure for quickly replacing the small vertical rollers of the finishing mill according to claim 3 is characterized in that: A reinforcing plate is welded between the end of the handle and the support body.

5. The structure for quickly replacing small vertical rollers of a finishing mill according to claim 1, characterized in that: The supporting body and the connecting plate are both steel plates.

6. The structure for quickly replacing small vertical rollers of a finishing mill according to claim 1, characterized in that: The handle is a screw rod.

7. The structure for quickly replacing small vertical rollers of a finishing mill according to claim 1, characterized in that: A rubber pad is fixedly arranged on the handle.

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