Rolling mill roll system supporting device
The novel roll system support device with adjustable screws and arc-shaped supports addresses the inefficiency and safety issues of traditional gap filling methods, ensuring stable and rapid intermediate roll replacement.
Patent Information
- Application Number
- CN202421659947.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In the prior art, the pore shape of the rolling mill roll system is irregular, resulting in unstable support when replacing the second intermediate roll, which poses safety hazards and affects the working efficiency.
A rolling mill roll system support device is designed, adopting the main support, adjustment nut and screw structure, contacting the roller through the arc-shaped support surface, and the adjustment nut is used to achieve expansion and contraction adjustment of the support to ensure the stability of the roller position.
The safety and efficiency of the replacement of the second intermediate roller is improved, the replacement time is reduced, and safety accidents caused by the slide of the support are avoided.
Smart Images
Figure CN223097620U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of equipment related to the maintenance of strip mill production lines, and more specifically, to a roll system support device for a rolling mill. Background Art
[0002] The Sendzimir 20-high rolling mill production line mainly conducts the rolling of stainless steel white skin coils, and its roll system adopts a typical plum blossom hole structure. The roll system of the rolling mill is arranged in a vertically symmetric manner in the form of eight support rolls a, six second intermediate rolls b, four first intermediate rolls c, and two working rolls d. After the roll system of the rolling mill is assembled, the ten upper rolls are mutually attached. The upper and lower left and right second intermediate rolls (three are arranged in the upper and lower parts respectively, the left and right second intermediate rolls are driving rolls, and the middle second intermediate roll is an idler roll) are connected to the gearbox at the rear of the rolling mill for driving, and there are a total of four driving rolls in the upper and lower parts (the left and right second intermediate rolls in the lower part and the left and right second intermediate rolls in the upper part). The support rolls are fixed by the plum blossom hole in the main housing in cooperation with the locking mechanism. At both ends of the driving roll, one end is used as the driving side and is connected to the gearbox, and the other end is used as the operating side. The driving side of the driving roll is fixed by the spline on the roll body in cooperation with the spline on the transmission shaft of the gearbox. The idler roll in the second intermediate roll and the driving side of the first intermediate roll are fixed by liftable hooks, and the operating sides are all fixed by retractable hooks.
[0003] The roll system of the rolling mill has a relatively fixed replacement cycle. Usually, the replacement cycle of the second intermediate roll is about 15 days, and the replacement cycle of the support roll is about 30 days. When replacing the support roll, the second intermediate roll is synchronously replaced. When abnormal situations such as strip breakage and roll surface spalling occur during the rolling process, it may also be necessary to replace the roll system of the rolling mill in advance. When replacing the second intermediate roll, since the operating side of the second intermediate roll is suspended by a hook, various hard objects such as iron blocks and wooden blocks need to be padded into the pores in the roll system to fill the pores when replacing, so as to ensure that the position of the second intermediate roll can be maintained at the original position after the retractable hook is loosened, so as to cooperate with the second intermediate roll clamping device to clamp the roll head, and then extract it from the roll system. Similarly, when installing a new second intermediate roll, various hard objects also need to be filled into the pores in the roll system after the driving side of the second intermediate roll meshes with the spline or the hook, so as to ensure that the clamping device can be smoothly withdrawn, and then the roll body is fixed by the hook.
[0004] In the current process of replacing the second intermediate roll, due to the irregular shape of the pores in the roll system and the large interval between the upper roll and the lower roll, different hard objects need to be stacked to achieve the effect of fixing the roll body. During the operation process, the situation that the filling is not in place and the position of the roll is not ideal after the hook is loosened and the clamping device cannot be smoothly clamped often occurs. In addition, since the hard objects cannot be completely filled when stacked, there is also an accident that the second intermediate roll slides out after the hook is loosened, seriously affecting the personal safety of the operating personnel.
[0005] Through the analysis of the prior art, it can be known that the shape of the gap between the rolls of the rolling mill is irregular, and the distances between the three upper intermediate rolls and the three lower intermediate rolls are different. The existing scheme of stacking hard objects for filling cannot achieve a convenient, stable and safe supporting effect on the rolls. Summary of the Invention
[0006] (1) Technical Problem
[0007] In summary, how to provide a special supporting device for use when replacing the intermediate rolls to improve the safety during the replacement of the intermediate rolls has become an urgent problem to be solved by those skilled in the art.
[0008] (2) Technical Solution
[0009] In order to achieve the above object, the present invention provides the following technical solution:
[0010] The present invention provides a roll train support device for a rolling mill. In the present invention, the roll train support device includes:
[0011] A main support, in which an adjusting nut is rotatably arranged;
[0012] A screw rod, one end of which is located inside the main support and is threadedly connected to the adjusting nut, and can perform telescopic movement relative to the main support by rotating the adjusting nut, and the other end of the screw rod is located outside the main support;
[0013] Support surfaces, there are two support surfaces which are respectively located at both ends of the main support, one of the support surfaces is connected to the main support, and the other support surface is connected to the screw rod.
[0014] Preferably, in the roll train support device provided by the present invention, the support surface is an arc surface; the radius range of the support surface is 80 mm - 100 mm.
[0015] Preferably, in the roll train support device provided by the present invention, an adjusting window is arranged on the main support, and the adjusting window is arranged relative to the adjusting nut.
[0016] Preferably, in the roll train support device provided by the present invention, the main support is a cylindrical structure or a regular polygonal prism tube structure.
[0017] Preferably, in the roll train support device provided by the present invention, the screw rod is coaxially arranged with the main support.
[0018] Preferably, in the rolling mill roll system support device provided by the present utility model, a nut fixing block is arranged inside the main support, and the adjusting nut is rotatably arranged inside the main support through the nut fixing block.
[0019] Preferably, in the rolling mill roll system support device provided by the present utility model, the nut fixing block includes a lower fixing part and an upper fixing part. The lower fixing part is provided with two lower support bars. The two lower support bars are located on the lower side of the adjusting nut and are respectively arranged on both sides of the screw hole of the adjusting nut. The upper fixing part is provided with two upper support bars. The two upper support bars are located on the upper side of the adjusting nut and are respectively arranged on both sides of the screw hole of the adjusting nut. The adjusting nut is arranged between the upper fixing part and the lower fixing part.
[0020] Preferably, in the rolling mill roll system support device provided by the present utility model, the support surface for connecting with the screw rod is fixedly connected with the screw rod, and a reinforcement structure is arranged between the support surface and the screw rod.
[0021] Preferably, in the rolling mill roll system support device provided by the present utility model, the support surface is a steel support surface, and the main support is a steel main support.
[0022] Preferably, in the rolling mill roll system support device provided by the present utility model, the centroid of the support surface is coaxially arranged with the main support.
[0023] (III) Beneficial effects
[0024] The present utility model provides a rolling mill roll system support device. In the present utility model, the rolling mill roll system support device includes: a main support, an adjusting nut is rotatably arranged inside the main support; a screw rod, one end of the screw rod is located inside the main support and is threadedly connected with the adjusting nut, and can perform telescopic movement relative to the main support through the rotation of the adjusting nut, and the other end of the screw rod is located outside the main support; support surfaces, there are two support surfaces and they are respectively located at both ends of the main support, one of the support surfaces is connected with the main support, and the other support surface is connected with the screw rod. Through the above structural design, the present utility model provides an integral roll system support device, which solves the problems existing in the prior art that multiple hard objects need to be stacked for support. In the present utility model, arc surface structures are used at both ends of the support device to increase the contact area between the support and the roll body, solve the problem of unstable support caused by a small support point area, and achieve the purpose of stability and safety. One end of the support is connected with the screw rod, and the quick telescopic adjustment of the support is realized through the adjusting nut, and the problems of irregular roll system pores and different roll spacings are solved. The present utility model aims to overcome the defects of unstable and unsafe support existing in the original operation process, and the purpose is to provide a support device that is easy to use, has higher efficiency and higher safety. Brief description of the drawings
[0025] The accompanying drawings of the specification, which form a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. Among them:
[0026] Figure 1 It is a distribution diagram of the rollers in the roll train of the rolling mill in the embodiment of the present utility model;
[0027] Figure 2 It is a schematic structural diagram of the roll train support device in the embodiment of the present utility model;
[0028] Figure 3 It is a schematic cross-sectional structural diagram of the roll train support device in the embodiment of the present utility model from a top-down perspective.
[0029] In Figures 1 to 3 the corresponding relationship between the component names and the reference numerals is as follows:
[0030] Main support 1, adjusting nut 2, screw 3, support surface 4, adjusting window 5, nut fixing block 6, reinforcement structure 7;
[0031] Support roll a, second intermediate roll b, first intermediate roll c, work roll d. Detailed implementation manners
[0032] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. Each example is provided by way of explanation of the present utility model rather than a limitation thereof. In fact, those skilled in the art will appreciate that modifications and variations can be made to the present utility model without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Accordingly, it is intended that the present utility model cover such modifications and variations that fall within the scope of the appended claims and their equivalents.
[0033] In the description of the present utility model, the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "connected" and "coupled" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0034] Please refer toFigures 1 to 3 , wherein, Figure 1 is the distribution diagram of the rollers in the rolling mill roll system in the embodiment of the present utility model; Figure 2 is the structural schematic diagram of the support device of the rolling mill roll system in the embodiment of the present utility model;
[0035] Figure 3 is the cross-sectional structural schematic diagram of the support device of the rolling mill roll system in the top view perspective in the embodiment of the present utility model.
[0036] The technical problem solved by the present utility model is to manufacture a telescopic integral roll system support device to improve the efficiency and safety of roll replacement operations.
[0037] In view of the unsatisfactory pore filling during the process of replacing the second intermediate roll on the production line and the current situation that affects operations and safety, the present utility model provides a support device for the rolling mill roll system, so that when replacing the second intermediate roll, the upper second intermediate roll can be fully supported to ensure the horizontal position of the roll body, and accidents such as the roll body slipping out due to the slipping of the support object will not occur.
[0038] The specific structural design of the support device for the rolling mill roll system of the present utility model is as follows: 1. The support between the upper and lower two rolls is used instead of using fillers for support, so as to achieve the effect of maintaining the horizontal position of the roll body; 2. Two arc-shaped blocks consistent with the arc of the roll body are used at both ends of the support to achieve the effect of fitting the two ends with the roll surface, and at the same time increase the force-bearing area at both ends of the support and extend the service life of the support; 3. One end of the support is welded to the pipe end of the circular pipe (main support 1), and the other end is connected to the screw 3 to achieve the telescopic effect; 4. The adjusting nut 2 is added, and the adjusting nut 2 is relatively fixed in the main support 1 by the fixing block. When the nut is rotated, the screw 3 can be lifted and lowered, so as to realize the telescopic of the support (the telescopic of the screw 3). It can also be smoothly telescoped in a small space. Especially when installing the second intermediate roll, since the roll surface is still in contact with the support when the hook is locked, if the support cannot be telescoped, it may cause the driving side to be disengaged from the spline or the hook during the process of removing the support, resulting in the second intermediate roll slipping out of the frame.
[0039] When using the re-manufactured roll change support device, when replacing the second intermediate roll, there is no need to use various irregular hard objects for filling, and the time for extracting the upper three second intermediate rolls is shortened from 15 minutes to 6 minutes, which not only ensures the operation safety but also improves the operation efficiency.
[0040] The structural features of the present utility model are as follows: 1. Use an integral support device to replace the original method of stacking hard objects to support the upper second intermediate roll; 2. Achieve the complete fit of the support and the roll surface through the arc surface structures at both ends to increase the stability of the support; 3. Realize the telescopic of the support through the adjusting nut 2, ensuring the convenience and safety during the use process.
[0041] Specifically, the utility model provides a rolling mill roll support device. In the utility model, the rolling mill roll support device includes three parts: 1. A main structure, namely a main support 1, which is used for installing other components and providing support force for the rollers; 2. An adjustment system, namely a matching structure of a screw rod 3 and an adjusting nut 2, which is used for adjusting the extension amount of the screw rod 3 relative to the main support 1; 3. A support structure, namely a support surface 4, which is used for contacting with the rollers to support the rollers.
[0042] In the utility model, in order to ensure the structural strength of the main support 1, the main support 1 is formed by bending a metal (preferably stainless steel) plate (welded after the two sides are butted together), and the main support 1 can adopt a cylindrical structure or a solid structure. When a solid structure is adopted, it is also necessary to hollow out the inside thereof, that is: a hole is punched along the axis of one end of the main support 1 to form a cavity structure capable of installing the adjusting nut 2. When the main support 1 adopts a cylindrical structure, the main support 1 is preferably a cylindrical structure, and of course a polygonal cylindrical structure (at least a hexagonal prism) can also be adopted. In addition, when the main support 1 adopts a cylindrical structure, the wall thickness design of the main support 1 should meet the support requirements of the roller (that is, the main support 1 can fully support at least one roller without deformation).
[0043] The utility model arranges an adjusting nut 2 inside the main support 1, the adjusting nut 2 is rotatably arranged inside the main support 1, a nut fixing block 6 is arranged inside the main support 1, the adjusting nut 2 is rotatably arranged inside the main support 1 through the nut fixing block 6, and the adjusting nut 2 is installed inside the main support 1 through the nut fixing block 6.
[0044] In one embodiment of the utility model, the nut fixing block 6 includes a lower fixing and an upper fixing, the lower fixing is provided with two lower support bars (solid metal strip structure), the two lower support bars are located at the lower side of the adjusting nut 2 and are arranged on both sides of the screw hole of the adjusting nut 2, the upper fixing is provided with two upper support bars, the two upper support bars are located at the upper side of the adjusting nut 2 and are arranged on both sides of the screw hole of the adjusting nut 2, and the adjusting nut 2 is arranged between the upper fixing and the lower fixing. Furthermore, the support bars of the upper fixing and the lower fixing can be designed in parallel structure or in a "well" shaped structure from top to bottom.
[0045] In another embodiment of the utility model, the nut fixing block 6 can adopt a support plate structure, and a circular installation groove is provided on the upper side of the support plate, and the diameter of the installation groove is slightly larger than the outer contour diameter of the adjusting nut 2, so that the adjusting nut 2 can be installed through the installation groove, and the adjusting nut 2 can be ensured to rotate, and the adjusting nut 2 can be limited to prevent it from shaking significantly. The support plate is made of metal components and is integrally formed, and the support plate is fixedly arranged (welded) inside the main support 1.
[0046] The adjusting nut 2 needs to be rotated to adjust the extension length of the screw rod 3 relative to the main support 1. Therefore, the utility model is provided with an adjusting window 5 on the main support 1. The adjusting window 5 is provided relative to the adjusting nut 2, and the operator's finger can rotate the adjusting nut 2 through the adjusting window 5. The adjusting window 5 should be protected, for example, a rubber ring can be provided around the adjusting window 5, or the edge of the adjusting window 5 can be polished to avoid scratches on the operator's fingers.
[0047] The utility model further provides a screw rod 3 on the main support 1 through the adjusting nut 2, one end of the screw rod 3 is located inside the main support 1 and is threadedly connected to the adjusting nut 2, and can perform telescopic movement relative to the main support 1 through the rotation of the adjusting nut 2, and the other end of the screw rod 3 is located outside the main support 1.
[0048] In the above structural design, a screw rod 3 is provided on the main support 1, and the length between the main support 1 and the screw rod 3 can be adjusted by extending and retracting the screw rod 3 (rotating the adjusting nut 2 to realize the extension and retraction of the screw rod 3). A support surface 4 is provided on the main support 1 and the screw rod 3, and the support surface 4 is used to contact with the roller, so as to support the roller. Specifically, two support surfaces 4 are provided and are respectively located at the two ends of the main support 1, one of the support surfaces 4 is connected to the main support 1, and the other support surface 4 is connected to the screw rod 3. The support surface 4 is in contact with the roller, and the surface of the roller is a smooth curved surface. In order to improve the stability of the contact between the support surface 4 and the roller, in the preferred embodiment of the utility model, the support surface 4 is a curved surface structure design, and the utility model limits the radius range of the support surface 4 to 80mm-100mm, and the optimal radius is 90mm.
[0049] In other structural optimization designs of the utility model: Optimization 1, the screw 3 is coaxially arranged with the main support 1, so that the main support 1 can be subjected to uniform force and the problem of structural damage caused by excessive local force can be avoided; Optimization 2, the support surface 4 used for connecting with the screw 3 is fixedly connected to the screw 3 and a reinforcement structure 7 is arranged between the support surface 4 and the screw 3, so that the structural strength of the connection between the support surface 4 and the screw 3 can be improved; Optimization 3, the centroid of the support surface 4 is coaxially arranged with the main support 1, so that the main support 1 can be subjected to uniform force and the problem of structural damage caused by excessive local force can be avoided, especially the damage to the connection structure between the support surface 4 and the screw 3 can be avoided; Optimization 4, the support surface 4 is a steel support surface 4, the main support 1 is a steel main support 1, and steel material is used as the manufacturing material of the support surface 4 and the main support 1, which can ensure that the support surface 4 and the main support 1 have high structural strength and meet the support weighing requirements of the roller.
[0050] As can be seen from the above, the present utility model provides a rolling mill roll system support device. In the present utility model, the rolling mill roll system support device includes: a main support 1, in which an adjusting nut 2 is rotatably arranged; a screw rod 3, one end of the screw rod 3 is located inside the main support 1 and is threadedly connected to the adjusting nut 2, and can perform telescopic movement relative to the main support 1 through the rotation of the adjusting nut 2, and the other end of the screw rod 3 is located outside the main support 1; a support surface 4, there are two support surfaces 4 and they are respectively located at both ends of the main support 1, one of the support surfaces 4 is connected to the main support 1, and the other support surface 4 is connected to the screw rod 3.
[0051] Through the above structural design, the present utility model provides an integral roll system support device, which solves the problems existing in the prior art that multiple hard objects need to be stacked for support. In the present utility model, arc surface structures are used at both ends of the support device to increase the contact area between the support and the roll body, solve the problem of unstable support caused by a small support point area, and achieve the purpose of stability and safety. One end of the support is connected to the screw rod 3, and the rapid telescopic adjustment of the support is realized through the adjusting nut 2, so as to solve the problems of irregular roll system pores and different roll spacings. The present utility model aims to overcome the defects of unstable and unsafe support existing in the original operation process, and the purpose is to provide a support device that is easy to use, has higher efficiency and higher safety.
[0052] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A rolling mill roll system support device, characterized in that, Comprising: A main support (1), within which an adjusting nut (2) is rotatably arranged; A screw rod (3), one end of which is located within the main support and is threadedly connected to the adjusting nut, and can perform telescopic movement relative to the main support by the rotation of the adjusting nut, and the other end of the screw rod is located outside the main support; Support surfaces (4), there are two support surfaces which are respectively located at both ends of the main support, one of the support surfaces is connected to the main support, and the other support surface is connected to the screw rod.
2. The rolling mill roll system support device according to claim 1, characterized in that The support surface is an arc surface; The radius range of the support surface is 80 mm - 100 mm.
3. The rolling mill roll system support device according to claim 1, characterized in that An adjusting window (5) is arranged on the main support, and the adjusting window is arranged relative to the adjusting nut.
4. The rolling mill roll system support device according to claim 1, characterized in that The main support is a cylindrical structure or a regular polygonal prism barrel structure.
5. The rolling mill roll system support device according to claim 4, characterized in that The screw rod is coaxially arranged with the main support.
6. The rolling mill roll system support device according to claim 1, characterized in that A nut fixing block (6) is arranged within the main support, and the adjusting nut is rotatably arranged within the main support through the nut fixing block.
7. The rolling mill roll system support device according to claim 6, characterized in that The nut fixing block includes a lower fixing part and an upper fixing part. The lower fixing part is provided with two lower support bars, and the two lower support bars are located on the lower side of the adjusting nut and are respectively arranged on both sides of the screw hole of the adjusting nut. The upper fixing part is provided with two upper support bars, and the two upper support bars are located on the upper side of the adjusting nut and are respectively arranged on both sides of the screw hole of the adjusting nut. The adjusting nut is arranged between the upper fixing part and the lower fixing part.
8. The rolling mill roll system support device according to claim 1, characterized in that The support surface for connecting with the screw rod is fixedly connected to the screw rod, and a reinforcing structure (7) is arranged between the support surface and the screw rod.
9. The rolling mill roll system support device according to claim 1, characterized in that The support surface is a steel support surface, and the main support is a steel main support.
10. The rolling mill roll system support device according to claim 5, characterized in that The centroid of the support surface is coaxially arranged with the main support.