Frame roller pressing device

Abstract

The utility model relates to a rack roller pressing device which comprises a guide plate body, at least two connecting screws are connected to the guide plate body, and the connecting screws penetrate through a rolling mill housing and then are connected with fixing nuts. The side face, adjacent to a rolling mill housing, of the guide plate body is provided with at least one disassembling groove, and the side, facing the rolling mill housing, of the disassembling groove is open. A dismounting power structure is detachably arranged in the dismounting groove, one end of the dismounting power structure can abut against the rolling mill housing, and the other end of the dismounting power structure can abut against the side wall, away from the rolling mill housing, of the dismounting groove. The groove for dismounting and the dismounting power structure in the groove form a quick dismounting structure of the rack roller pressing device, and acting force for separating the guide plate body from the rolling mill housing is applied between the guide plate body and the rolling mill housing through the dismounting power structure, so that the dismounting speed of the pressing device is greatly increased, the equipment dismounting time is shortened, and the dismounting efficiency is improved; and smooth proceeding of the production rhythm is guaranteed, and the flexibility of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of iron and steel metallurgy, and in particular to a frame roller clamping device that can be quickly disassembled. Background Technology

[0002] In modern steel manufacturing, rolling mills are key equipment, and their efficiency and reliability directly affect the economy of the entire production process and product quality. Multiple stand rolls are installed at the mill's inlet and outlet to transport rolled products in and out of the mill. The frequent forward and reverse rotation of these stand rolls generates significant impact loads, easily causing damage. Timely replacement is necessary during production. Traditional stand roll clamping devices have shown many shortcomings during disassembly and maintenance, becoming a bottleneck restricting production efficiency and equipment flexibility.

[0003] One existing form of a stand roll clamping device is as follows: the stand rolls are installed on the inlet and outlet sides of the rolling mill, between the operating side and the drive side archway; the bottom of the stand roll bearing housing has a wedge-shaped structure with a certain angle, and the upper part also has a wedge-shaped structure with an angle. The bearing housing is installed on a boss inside the archway, and the upper part is clamped by a clamping device. The clamping device is bolted to the stand, and the bottom surface is inclined and fitted with a liner. The liner is a wear part; when the thickness decreases after wear, the clamping device can still clamp the stand roll by tightening the bolts.

[0004] When disassembling the clamping device, first loosen the connecting bolts, and then use the set screws of the six bolts (disassembly bolts in the figure) to push the clamping device out.

[0005] However, in practical applications, the existing clamping device has a small maintenance space, making it inconvenient to disassemble. Furthermore, due to the influence of the factory environment (oil, water, and air corrosion), the disassembly bolts are prone to rust, and the force of the set screw itself is not strong enough. This results in long maintenance time, difficult disassembly, difficult operation, high labor intensity for workers, and even the need to resort to destructive disassembly methods such as cutting, which affects the factory's production rhythm and equipment maintenance costs.

[0006] As previously mentioned, the disassembly process of traditional rolling mill stand roll clamping devices is cumbersome, involving a large amount of manual operation and heavy tools. Specific limitations include:

[0007] 1. Long disassembly time: Disassembling the clamping device requires a lot of time, especially when changing rolls or overhauling equipment. This process leads to long downtime of the rolling mill, which directly affects the output and economic benefits of the production line.

[0008] 2. High operational difficulty: Due to the influence of the site environment and the equipment itself, the clamping device is generally difficult to remove, and sometimes destructive removal methods such as cutting are necessary. At the same time, there are also significant safety hazards in manual operation.

[0009] 3. Poor production flexibility: When frequent roll changes or adjustments to production process parameters are required, the traditional equipment is not flexible enough to meet the requirements for rapid changeover, thus limiting the flexible manufacturing capability of the production line.

[0010] With the diversification and personalization of market demands, steel production enterprises are placing higher demands on the rapid response capabilities of their equipment. To address this challenge, improving the maintenance efficiency of rolling mills, reducing equipment downtime, and enhancing the flexibility of production lines have become urgent needs for industry development. Therefore, researching and developing a quick-disassembly rolling mill stand roll clamping device structure can not only significantly improve equipment operation and maintenance efficiency but also substantially reduce downtime, thereby enhancing the overall efficiency of the production line.

[0011] Therefore, based on years of experience and practice in related industries, the inventor proposes a frame roller pressing device to overcome the shortcomings of the prior art. Utility Model Content

[0012] The purpose of this utility model is to provide a frame roll clamping device that overcomes the technical problems of long disassembly time of existing clamping devices. The disassembly groove and its internal disassembly power structure constitute a quick disassembly structure for the frame roll clamping device. By applying a force to separate the guide plate body and the rolling mill stand through the disassembly power structure, the disassembly speed of the clamping device is greatly improved, the equipment disassembly time is shortened, the disassembly efficiency is improved, the production rhythm is ensured, and the flexibility of the equipment is enhanced.

[0013] The purpose of this utility model is achieved as follows: a stand roll clamping device includes a guide plate body for clamping the stand roll, at least two connecting screws connected to the guide plate body, the connecting screws passing through the mill stand and connected to fixing nuts to fix the guide plate body to the mill stand; at least one disassembly groove is provided on the side of the guide plate body adjacent to the mill stand, the disassembly groove being open on the side facing the mill stand; a disassembly power structure is detachably provided in the disassembly groove, one end of the disassembly power structure being able to abut against the mill stand, and the other end of the disassembly power structure being able to abut against the side wall of the disassembly groove away from the mill stand.

[0014] In a preferred embodiment of the present invention, a disassembly groove is provided at each end of the guide plate body.

[0015] In a preferred embodiment of the present invention, each of the disassembly grooves is provided inward and downward from the end of the guide plate body.

[0016] In a preferred embodiment of this utility model, the wall surface of each of the disassembly grooves near the frame roller is arranged in an arc shape.

[0017] In a preferred embodiment of the present invention, a disassembly groove is provided at the middle position of the guide plate body along a direction perpendicular to the axial direction of the connecting screw.

[0018] In a preferred embodiment of the present invention, the side of the disassembly groove away from the frame roller is open.

[0019] In a preferred embodiment of this utility model, the wall surface of the disassembly groove near the frame roller is arranged in an arc shape.

[0020] In a preferred embodiment of this utility model, the disassembly power structure is a hydraulic jack block.

[0021] In a preferred embodiment of the present invention, a stainless steel layer is provided on the top surface of the guide plate body.

[0022] In a preferred embodiment of this utility model, a liner is provided on the bottom surface of the guide plate body that presses against the frame roller.

[0023] As described above, the frame roller pressing device of this utility model has the following beneficial effects:

[0024] The disassembly groove and its internal disassembly power structure constitute a rapid disassembly structure for the mill stand roller clamping device. By applying a force to separate the guide plate body and the mill stand through the disassembly power structure, the disassembly speed of the clamping device is greatly improved, the equipment disassembly time is shortened, the disassembly efficiency is increased, the production rhythm is ensured, and the flexibility of the equipment is improved. The disassembly process is made easier, the risks during operation are reduced, and the labor intensity of workers is lessened. The problem of destructive disassembly on site is transformed into protective disassembly. This is of great significance for the maintenance of mill equipment, the reduction of equipment spare parts costs, and the acceleration of factory production rhythm.

[0025] This invention eliminates the use of set screws, avoiding problems such as bolt rust or partial bolt failure that hinders disassembly. This invention is lightweight, has a simple and reliable structure, and is easy to maintain, giving it a significant cost advantage. Attached Figure Description

[0026] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0027] Figure 1 This is a three-dimensional schematic diagram of Embodiment 1 of the frame roller pressing device of this utility model.

[0028] Figure 2 This is a front view of Embodiment 1 of the frame roller pressing device of this utility model.

[0029] Figure 3 This is a top view of Embodiment 1 of the frame roller pressing device of this utility model.

[0030] Figure 4 This is a side view of Embodiment 1 of the frame roller pressing device of this utility model.

[0031] Figure 5 This is a side view of Embodiment 2 of the frame roller pressing device of this utility model.

[0032] Figure 6 This is a partial sectional view of the installation of the frame roller pressing device of this utility model.

[0033] Figure 7 This is a schematic diagram showing the operating state of the frame roller pressing device of this utility model.

[0034] In the picture:

[0035] 100. Frame roller clamping device;

[0036] 1. Guide plate body; 11. First disassembly groove; 12. Second disassembly groove; 13. Third disassembly groove;

[0037] 2. Connecting screw;

[0038] 3. Secure the nuts;

[0039] 4. Frame roller; 41. Frame roller bearing housing;

[0040] 5. Rolling mill archway;

[0041] 6. Stainless steel layer;

[0042] 7. Lining plate;

[0043] 8. Disassemble the power structure. Detailed Implementation

[0044] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0045] The specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the present invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on this invention, and these should all be considered within the scope of this invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "linked" should be interpreted broadly; for example, they can refer to mechanical or electrical connections, or internal connections between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] like Figures 1 to 7 As shown, this utility model provides a frame roller pressing device 100, including a guide plate body 1 for pressing the frame roller 4. At least two connecting screws 2 are connected to the guide plate body 1. The connecting screws 2 pass through the mill stand and are connected to fixing nuts 3 to fix the guide plate body 1 to the mill stand 5. At least one disassembly groove is provided on the side of the guide plate body 1 adjacent to the mill stand 5. The disassembly groove is open on the side facing the mill stand 5. A disassembly power structure 8 is detachably provided in the disassembly groove. One end of the disassembly power structure 8 can abut against the mill stand 5, and the other end of the disassembly power structure can abut against the side wall of the disassembly groove away from the mill stand 5.

[0048] The stand roll clamping devices 100 are arranged in pairs above both ends of the stand roll 4, that is, one stand roll clamping device 100 is arranged on the opposite side of the mill stand on the operating side and the transmission side, so that the stand roll 4 is clamped smoothly.

[0049] The stand roll 4 can be installed using conventional technology. The stand roll 4 is installed on the inlet and outlet sides of the rolling mill, between the rolling mill stand on the operating side and the drive side. The bottom of the stand roll bearing seat 41 (existing technology) is a wedge-shaped structure with a certain angle, and the upper part is also a wedge-shaped structure with an angle. The installation position of the stand roll bearing seat 41 is on the boss (existing technology) on the inner side of the rolling mill stand, and the upper part is pressed by the stand roll clamping device 100.

[0050] In order to better fit and press against the top wedge structure of the frame roller bearing seat 41, the bottom surface of the guide plate body 1 of the frame roller pressing device 100 is set as an inclined surface.

[0051] The guide plate body 1 is fastened to the mill stand 5 by the connecting screw 2, so that the guide plate body 1 can press the stand roll 4 tightly.

[0052] When disassembling the stand roll clamping device 100, the connecting screw 2 must first be loosened; the disassembly power structure (jack or other machinery) in the disassembly slot is used to apply a force to separate the guide plate body 1 and the rolling mill stand 5, and the stand roll clamping device 100 is removed.

[0053] The disassembly groove and its internal disassembly power structure constitute the rapid disassembly structure of the frame roller clamping device 100. By applying a force to separate the guide plate body 1 and the rolling mill stand 5 through the disassembly power structure (jacks and other machinery), the disassembly speed of the clamping device is greatly improved, the equipment disassembly time is shortened, the disassembly efficiency is improved, the production rhythm is ensured, and the flexibility of the equipment is improved. The operation difficulty of the disassembly process is reduced, the risk in the operation process is reduced, the labor intensity of workers is reduced, and the problem of destructive disassembly on site is improved into protective disassembly. It is of great significance for the maintenance of rolling mill equipment, the reduction of equipment spare parts costs, and the acceleration of factory production rhythm.

[0054] This invention eliminates the use of set screws, avoiding problems such as bolt rust or partial bolt failure that hinders disassembly. This invention is lightweight, has a simple and reliable structure, and is easy to maintain, giving it a significant cost advantage.

[0055] Example 1

[0056] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a disassembly groove is provided at each end of the guide plate body 1, and the disassembly grooves at both ends are designated as the first disassembly groove 11 and the second disassembly groove 12.

[0057] Furthermore, the first disassembly groove 11 and the second disassembly groove 12 are inclined inward and downward from the end of the guide plate body 1.

[0058] Furthermore, the first disassembly groove 11 and the second disassembly groove 12 are arranged in an arc shape on the wall surface near the frame roller 4.

[0059] The disassembly slot has an overall arc-shaped structure, and there are no special requirements for its shape. The reason for the arc surface is that jack blocks are generally arc-shaped, and the arc surface design is used to accommodate the jack blocks, ensuring that the jack blocks can be placed inside. The wall surface design of the disassembly slot can be determined according to actual production needs.

[0060] The advantage of setting disassembly slots at both ends is that the disassembly power structure 8 (e.g., jack block) is easy to remove or put in. When not disassembling is required in the working state, the disassembly power structure can be removed. If needed, after removing the disassembly power structure, the corresponding shaped parts can be filled in the corresponding positions to maintain the aesthetics and protect the structure (it is optional to leave it unremoved or unfilled, depending on the user's habits).

[0061] The shape of the disassembly slot should be suitable for placing the power structure during disassembly, and the angle of the disassembly slot should be such that the jack does not fall out.

[0062] like Figure 6 , Figure 7 As shown, the disassembly power structure 8 adopts a block structure and is placed in the first disassembly slot 11 and the second disassembly slot 12. One end abuts against the side of the rolling mill stand 5, and the other side abuts against the side wall of the disassembly slot away from the rolling mill stand 5. When disassembling, the disassembly power structure (jack block) is pushed out by the force on both sides. The principle is the same regardless of the shape of the disassembly power structure.

[0063] Example 2

[0064] like Figure 5 As shown, a disassembly groove is provided at the middle position of the guide plate body 1 along the direction perpendicular to the axial direction of the connecting screw 2, that is, the disassembly groove is provided at the middle position of the guide plate body 1 in the length direction; this disassembly groove is designated as the third disassembly groove 13. When the disassembly groove is provided in the middle, the disassembly power structure (jack block) cannot be taken out or put in at any time, and the disassembly power structure (jack block) is stored in the disassembly groove for a long time.

[0065] Furthermore, the third disassembly groove 13 is open on the side away from the frame roller 4, and the third disassembly groove 13 is recessed.

[0066] Furthermore, the wall surface of the third disassembly groove 13 near the frame roller 4 is set in an arc shape.

[0067] Furthermore, the disassembly power structure 8 can be selected as a hydraulic jack block. When disassembling the frame roller clamping device 100, the disassembly power structure applies force faster and more smoothly, which is more conducive to improving disassembly efficiency.

[0068] Furthermore, such as Figures 1 to 5As shown, a stainless steel layer 6 is provided on the top surface of the guide plate body 1. Generally, stainless steel is overlaid to form the stainless steel layer 6, which increases the corrosion resistance of the equipment and extends its service life.

[0069] Furthermore, such as Figure 1 , Figure 2 , Figure 7 As shown, a liner 7 is provided on the bottom surface of the guide plate body 1 pressing the frame roller 4. The liner 7 is a wear part, which bears the wear during the pressing process and avoids damage to the guide plate body 1. In this embodiment, the liner 7 is connected to the bottom surface of the guide plate body 1 by countersunk screws.

[0070] As described above, the frame roller pressing device of this utility model has the following beneficial effects:

[0071] The disassembly groove and its internal disassembly power structure constitute a rapid disassembly structure for the mill stand roller clamping device. By applying a force to separate the guide plate body and the mill stand through the disassembly power structure, the disassembly speed of the clamping device is greatly improved, the equipment disassembly time is shortened, the disassembly efficiency is increased, the production rhythm is ensured, and the flexibility of the equipment is improved. The disassembly process is made easier, the risks during operation are reduced, and the labor intensity of workers is lessened. The problem of destructive disassembly on site is transformed into protective disassembly. This is of great significance for the maintenance of mill equipment, the reduction of equipment spare parts costs, and the acceleration of factory production rhythm.

[0072] This invention eliminates the use of set screws, avoiding problems such as bolt rust or partial bolt failure that hinders disassembly. This invention is lightweight, has a simple and reliable structure, and is easy to maintain, giving it a significant cost advantage.

[0073] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A stand roll clamping device, comprising a guide plate body for clamping the stand roll, wherein at least two connecting screws are connected to the guide plate body, the connecting screws passing through the mill stand and connected to fixing nuts to fix the guide plate body to the mill stand; characterized in that, At least one disassembly groove is provided on the side of the guide plate body adjacent to the rolling mill stand. The disassembly groove is open on the side facing the rolling mill stand. A disassembly power structure is detachably provided in the disassembly groove. One end of the disassembly power structure can abut against the rolling mill stand, and the other end of the disassembly power structure can abut against the side wall of the disassembly groove away from the rolling mill stand.

2. The frame roller pressing device as described in claim 1, characterized in that, The guide plate body is provided with a disassembly groove at each end.

3. The frame roller pressing device as described in claim 2, characterized in that, Each of the disassembly grooves is provided inward and downward from the end of the guide plate body.

4. The frame roller pressing device as described in claim 3, characterized in that, Each of the disassembly grooves has an arc-shaped wall surface near the frame roller.

5. The frame roller pressing device as described in claim 1, characterized in that, The guide plate body is provided with a disassembly groove at the middle position along the direction perpendicular to the axial direction of the connecting screw.

6. The frame roller pressing device as described in claim 5, characterized in that, The disassembly groove is open on the side away from the frame roller.

7. The frame roller pressing device as described in claim 5, characterized in that, The disassembly groove is arranged with an arc surface near the wall of the frame roller.

8. The frame roller pressing device as described in claim 1, characterized in that, The disassembly power structure is a hydraulic jack block.

9. The frame roller pressing device as described in claim 1, characterized in that, The top surface of the guide plate body is provided with a stainless steel layer.

10. The frame roller pressing device as described in claim 1, characterized in that, A liner is provided on the bottom surface of the guide plate body that presses against the frame roller.

Images