Steel coil plate hot rolling device with rollers convenient to replace
By adopting a design that combines a tapered limiting ring with a tapered groove in the hot rolling mill of steel coils, along with limiting connectors and fixing components, the problem of needing to correct concentricity during roll replacement in the prior art has been solved, thus achieving convenient and accurate roll replacement.
Patent Information
- Application Number
- CN202520075931.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2035-01-14
AI Technical Summary
The existing hot rolling mill for steel coils requires roll concentricity correction when changing rolls, which is a rather cumbersome operation.
The design employs a tapered limiting ring and tapered groove, combined with limiting connectors and fixing components, to ensure the accuracy of roll installation. The use of threaded rods and nuts enables concentric installation of rolls without the need for straightening.
It simplifies the roll replacement process, improves the convenience and accuracy of replacement, and reduces operational complexity.
Smart Images
Figure CN223505897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot rolling technology, specifically to a hot rolling device for steel coils that facilitates the replacement of rolls. Background Technology
[0002] Hot rolling is the opposite of cold rolling. Cold rolling is rolling performed below the recrystallization temperature, while hot rolling is rolling performed above the recrystallization temperature. Simply put, a steel billet is heated and then rolled several times, then trimmed and straightened to become a steel plate. This is called hot rolling. It can significantly reduce energy consumption and costs. During hot rolling, the metal has high plasticity and low deformation resistance, which greatly reduces the energy consumption of metal deformation.
[0003] During the rolling process of steel coils, the rolling rolls rub directly against the steel coils. This can cause the rolls to wear out over a long period of use, and if the rolls are damaged, they need to be replaced. Currently, when replacing rolls, it is necessary to correct the concentricity of the rolls, which is quite troublesome. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a hot rolling device for steel coils that facilitates roll replacement, making the replacement process convenient.
[0005] This utility model provides the following technical solution: a hot rolling device for steel coils that facilitates the replacement of rolls, comprising a hot rolling device body, a drive rod and rolls, one end of the drive rod being fixedly fitted with a conical limiting ring, and one end of the roll being provided with a first conical groove matching the conical limiting ring, and the other end of the roll being provided with a second conical groove, and a limiting connector being provided in the second conical groove, wherein both the limiting connector and the outer wall of the drive rod are rotatably fitted with a fixing component.
[0006] Furthermore, the limiting connector includes a tapered rod disposed in the second tapered groove, and a connecting rod is fixedly connected to one end of the tapered rod. The drive rod has a cavity inside, and a slider is slidably connected to the inner wall of the cavity. One end of the connecting rod passes through the drive rod and is fixedly connected to the slider. The other end of the tapered rod is fixedly connected to a threaded rod, and a nut is threadedly connected to the outer wall of the threaded rod. One end of the threaded rod is fixedly connected to a rotating shaft, and the limiting connector is rotatably sleeved on the outer wall of the rotating shaft.
[0007] Furthermore, both of the fixing components include a fixing plate, and the fixing plate is detachably connected to the hot rolling device body. The inner wall of the fixing plate is fixedly connected with a bearing, and the two bearings are respectively sleeved on the outer wall of the rotating shaft and the drive rod.
[0008] Furthermore, a washer is fitted on the outer wall of the threaded rod, and one side wall of the washer contacts the nut.
[0009] Furthermore, the connecting rod has a rectangular structure.
[0010] Furthermore, a support ring is fixedly sleeved on the outer wall of the connecting rod.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] In this invention, by setting a conical limiting ring that works in conjunction with a first conical groove, one end of the limiting roll can be supported, thus ensuring the accuracy of the roll's position during installation. Furthermore, by setting a second conical groove that works in conjunction with a limiting connector, the accuracy of the other end of the roll's position can be ensured during installation. With these two components working together, no correction is required when replacing the installed roll, ensuring that the installed roll and the mounting component are concentric, making roll replacement convenient and effortless. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0014] Figure 2 This is a partial structural schematic diagram of the present invention;
[0015] Figure 3 This is a partial cross-sectional view of the present invention.
[0016] Figure 4 for Figure 3 Enlarged structural diagram at point A;
[0017] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point B.
[0018] In the figure: 1. Hot rolling device body; 2. Drive rod; 3. Roll; 4. Conical limiting ring; 5. First conical groove; 6. Second conical groove; 7. Conical rod; 8. Connecting rod; 9. Cavity; 10. Slider; 11. Threaded rod; 12. Nut; 13. Rotating shaft; 14. Fixing plate; 15. Bearing; 16. Washer; 17. Support ring. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Please see Figures 1-5This utility model provides a technical solution: a hot rolling device for steel coils that facilitates the replacement of rolls, comprising a hot rolling device body 1, a drive rod 2 and a roll 3. One end of the drive rod 2 is fixedly fitted with a conical limiting ring 4, and one end of the roll 3 is provided with a first conical groove 5 that matches the conical limiting ring 4. The other end of the roll 3 is provided with a second conical groove 6, and a limiting connector is provided in the second conical groove 6. The limiting connector and the outer wall of the drive rod 2 are both rotatably fitted with a fixing component.
[0021] As can be seen from the above structure, by setting the conical limiting ring 4 and the first conical groove 5 to cooperate, one end of the limiting roll 3 can be supported and limited, thus ensuring the accuracy of the position of the roll 3 during installation. Furthermore, by setting the second conical groove 6 and cooperating with the limiting connector, the accuracy of the position of the other end of the roll 3 can be ensured during installation. With the two working together, when replacing the installed roll 3, no correction is required, and the installed roll 3 can be guaranteed to be concentric with the mounting part, making the replacement of the roll 3 convenient and time-saving.
[0022] Furthermore, the limiting connector includes a tapered rod 7 disposed within the second tapered groove 6, with a connecting rod 8 fixedly connected to one end of the tapered rod 7. A cavity 9 is provided inside the drive rod 2, and a slider 10 is slidably connected to the inner wall of the cavity 9. One end of the connecting rod 8 passes through the drive rod 2 and is fixedly connected to the slider 10. A threaded rod 11 is fixedly connected to the other end of the tapered rod 7, and a nut 12 is threadedly connected to the outer wall of the threaded rod 11. A rotating shaft 13 is fixedly connected to one end of the threaded rod 11, and the limiting connector is rotatably sleeved on the outer wall of the rotating shaft 13. By setting the threaded rod 11 and the tapered rod 7 to work together, the drive rod 2 is limited during installation. Then, by rotating the nut 12, the threaded rod 11 and the tapered rod 7 can move, causing the tapered rod 7 to be stuck in the second tapered groove 6, thereby limiting and supporting one end of the roller 3.
[0023] Furthermore, both fixing components include a fixing plate 14, and the fixing plate 14 is detachably connected to the hot rolling device body 1. The inner wall of the fixing plate 14 is fixedly connected to a bearing 15, and the two bearings 15 are respectively sleeved on the outer wall of the rotating shaft 13 and the drive rod 2. By setting the fixing plate 14 and the bearing 15 to work together, the fixing plate 14, the bearing 15 and the limiting connector can work together to connect the roll 3 to the hot rolling device body 1.
[0024] Furthermore, a washer 16 is fitted on the outer wall of the threaded rod 11, and one side wall of the washer 16 contacts the nut 12; by setting the washer 16, the nut 12 can be prevented from directly rubbing against the roll 3 and damaging the roll 3.
[0025] Furthermore, the connecting rod 8 has a rectangular structure; by setting the rectangular connecting rod 8, when the driving rod 2 rotates, the rotating driving rod 2 can drive the limiting connector to rotate through the rectangular connecting rod 8.
[0026] Furthermore, a support ring 17 is fixedly sleeved on the outer wall of the connecting rod 8; by setting the support ring 17, the inner wall of the roller 3 can be supported.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hot rolling apparatus for steel coils with easily replaceable rolls, comprising a hot rolling apparatus body (1), a drive rod (2), and rolls (3), characterized in that, One end of the drive rod (2) is fixedly fitted with a conical limiting ring (4), and one end of the roller (3) is provided with a first conical groove (5) that matches the conical limiting ring (4). The other end of the roller (3) is provided with a second conical groove (6), and a limiting connector is provided in the second conical groove (6). The limiting connector and the outer wall of the drive rod (2) are both rotatably fitted with a fixing component.
2. The hot rolling apparatus for steel coils with easily replaceable rolls according to claim 1, characterized in that: The limiting connector includes a tapered rod (7) disposed in the second tapered groove (6), and a connecting rod (8) is fixedly connected to one end of the tapered rod (7). A cavity (9) is opened inside the driving rod (2), and a slider (10) is slidably connected to the inner wall of the cavity (9). One end of the connecting rod (8) passes through the driving rod (2) and is fixedly connected to the slider (10). A threaded rod (11) is fixedly connected to the other end of the tapered rod (7), and a nut (12) is threadedly connected to the outer wall of the threaded rod (11). A rotating shaft (13) is fixedly connected to one end of the threaded rod (11), and the limiting connector is rotatably sleeved on the outer wall of the rotating shaft (13).
3. A hot rolling apparatus for steel coils with easily replaceable rolls according to claim 2, characterized in that: Both of the fixing components include a fixing plate (14), and the fixing plate (14) is detachably connected to the hot rolling device body (1). The inner wall of the fixing plate (14) is fixedly connected with a bearing (15), and the two bearings (15) are respectively sleeved on the outer wall of the rotating shaft (13) and the drive rod (2).
4. A hot rolling apparatus for steel coils with easily replaceable rolls according to claim 2, characterized in that: The outer wall of the threaded rod (11) is fitted with a gasket (16), and one side wall of the gasket (16) is in contact with the nut (12).
5. A hot rolling apparatus for steel coils with easily replaceable rolls according to claim 2, characterized in that: The connecting rod (8) has a rectangular structure.
6. A hot rolling apparatus for steel coils with easily replaceable rolls according to claim 2, characterized in that: The outer wall of the connecting rod (8) is fixedly fitted with a support ring (17).