A cooling cover for the work rolls of an aluminum sheet and strip rolling mill
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]现有的铝板带轧机工作辊，部分冷却装置的喷淋头采用固定安装方式，与冷却罩的开合状态完全脱节，当冷却罩打开进行检修或换辊时，喷淋头始终暴露在外，易与轧机其他运动部件发生剐蹭，导致喷头损坏或喷射角度偏移，不仅增加维护成本，还可能因喷头故障影响后续冷却效果，由于喷淋头固定安装时始终保持对准工作辊的姿态，当需要对喷头进行日常清理（如清除喷射口堵塞物）、部件更换等维护操作时，操作人员需手动将喷头从贴近工作辊的位置掰出，该过程中，需在工作辊周边的狭窄空间内进行，不仅操作不便、效率低下，操作的风险更高
喷淋头的状态与冷却罩的开合形成联动机制，当冷却罩打开进行检修或换辊时，在弹簧顶升力作用下，喷淋头会自动收纳于方形槽内，不再暴露于外部空间，从根本上避免了与轧机其他运动部件发生剐蹭的可能，有效减少喷头损坏和喷射角度偏移的情况，降低了因喷头故障导致的维护成本增加及后续冷却效果受影响的风险；
Smart Images
Figure CN224629586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum plate and strip rolling mill technology, and in particular to a cooling cover for the work rolls of an aluminum plate and strip rolling mill. Background Technology
[0002] An aluminum sheet and strip rolling mill is a mechanical device used to roll aluminum sheets or strips. Its main function is to apply pressure to the aluminum billet through one or more pairs of rotating work rolls, causing the aluminum billet to undergo plastic deformation, thereby obtaining aluminum sheet or strip products with a certain thickness, width and surface quality.
[0003] During the rolling process, the intense friction between the work rolls and the aluminum billet generates a large amount of heat, requiring cooling equipment to cool the work rolls in a timely manner to ensure their normal operating performance and the rolling quality of the aluminum sheet and strip. Aluminum sheet and strip rolling mills are widely used in aerospace, automotive manufacturing, construction decoration, packaging, and many other fields, and are key equipment in the aluminum processing industry.
[0004] In existing aluminum strip rolling mills, some cooling devices use fixed-installation spray heads on the work rolls, which are completely disconnected from the opening and closing of the cooling shroud. When the cooling shroud is opened for maintenance or roll replacement, the spray heads are always exposed, making them prone to rubbing against other moving parts of the mill. This can lead to spray head damage or spray angle deviation, increasing maintenance costs and potentially affecting subsequent cooling effects due to spray head malfunctions. Because the spray heads are always aligned with the work roll when fixed-installed, operators must manually pry the spray heads out of their position close to the work roll for routine cleaning (such as removing blockages from the spray nozzles) or component replacement. This process must be performed in the narrow space around the work roll, which is not only inconvenient and inefficient but also carries higher operational risks. Utility Model Content
[0005] Therefore, to address the aforementioned technical issues, some cooling devices use a fixed installation method for their spray heads, which is completely disconnected from the opening and closing state of the cooling hood. When the cooling hood is opened for maintenance or roll replacement, the spray heads are always exposed, making them prone to rubbing against other moving parts of the rolling mill, resulting in damage to the spray heads or deviation in the spray angle. This not only increases maintenance costs but may also affect the subsequent cooling effect due to spray head failure. Since the spray heads are always aligned with the work roll when they are fixedly installed, when routine cleaning (such as removing blockages from the spray nozzles) or component replacement is required, operators must manually pry the spray heads out from their position close to the work roll. This process must be carried out in the narrow space around the work roll, which is not only inconvenient and inefficient but also carries a higher risk.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A cooling hood for work rolls in an aluminum sheet and strip rolling mill includes a support frame, a work roll assembly installed inside the support frame, a cooling hood slidably mounted on the side of the support frame, a through-hole groove in the middle of the cooling hood, coolant spraying assemblies provided on the upper and lower end faces of the through-hole groove in front of the cooling hood, a movable groove in the side of the coolant spraying assembly, and a drive assembly provided inside the movable groove.
[0007] In a preferred embodiment of the cooling hood for the work rolls of the aluminum strip rolling mill provided by this utility model, a slider is provided on the surface of the support frame, and a groove is provided on the inner wall of the cooling hood, the groove being movably fitted onto the surface of the slider.
[0008] In a preferred embodiment of the cooling shroud for the work rolls of the aluminum strip rolling mill provided by this utility model, a cylinder is installed at the bottom of the support frame on the side away from the cooling shroud, a connecting plate is installed at the bottom of the cooling shroud, and the output end of the cylinder is connected to the connecting plate.
[0009] In a preferred embodiment of the cooling hood for the work rolls of the aluminum strip rolling mill provided by this utility model, the coolant spray assembly includes four square grooves, which are evenly distributed on the surface of the cooling hood. Spray heads are movably arranged inside the square grooves, and a rotating shaft is connected between the four spray heads. An inner groove is formed on the surface of the movable groove near the surface of the coolant spray assembly. A swing rod is movably arranged inside the inner groove. The end of the rotating shaft is disposed in the inner groove, and the end of the rotating shaft is fixedly connected to the end face of the swing rod. The other end of the swing rod is movably disposed in the movable groove.
[0010] In a preferred embodiment of the cooling hood for the work rolls of the aluminum strip rolling mill provided by this utility model, a limiting groove is formed on the surface of the movable groove away from the coolant spray assembly. A lifting block is movably arranged inside the movable groove near one end of the limiting groove. The lifting block is located below the swing rod. A limiting block is provided on the surface of the lifting block and movably installed in the limiting groove. A spring is provided between the bottom of the lifting block and the bottom surface of the movable groove.
[0011] In a preferred embodiment of the cooling shroud for the working rolls of the aluminum strip rolling mill provided by this utility model, two extrusion blocks are provided on the side of the support frame, and the ends of the extrusion blocks are set as inclined surfaces.
[0012] In a preferred embodiment of the cooling hood for the work rolls of the aluminum strip rolling mill provided by this utility model, a liquid collection tank is provided below the support frame, and the surface of the spray head is connected to a coolant delivery system through a delivery pipe.
[0013] Compared with the prior art, the present invention has the following beneficial effects: The status of the spray head is linked to the opening and closing of the cooling hood. When the cooling hood is opened for maintenance or roll replacement, the spray head will automatically retract into the square slot under the lifting force of the spring, and will no longer be exposed to the external space. This fundamentally avoids the possibility of rubbing against other moving parts of the rolling mill, effectively reduces the damage to the spray head and the deviation of the spray angle, and reduces the risk of increased maintenance costs and subsequent cooling effect caused by the failure of the spray head. Because the spray head can automatically adjust its state with the opening and closing of the cooling cover, when routine cleaning or component replacement is required, there is no need to manually move the spray head in the narrow space around the working roller. When the cooling cover is opened, the spray head is automatically retracted, providing operators with a more spacious and safer operating space. This not only makes operation more convenient and improves maintenance efficiency, but also significantly reduces the risk of operators being pinched or affected by high temperatures when operating in a narrow space. Attached Figure Description
[0014] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 A schematic diagram of the overall structure of a cooling shroud for the work rolls of an aluminum sheet and strip rolling mill. Figure 2 This is a schematic diagram of the support frame from the front. Figure 3 This is a schematic diagram of the cooling shroud structure; Figure 4 A schematic diagram of the cooling shroud from another perspective; Figure 5 This is a schematic diagram of the coolant spray assembly structure; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 for Figure 4 Enlarged view of point B in the middle.
[0016] The markings in the diagram are explained as follows: 1. Support frame; 2. Cooling cover; 3. Through slot; 4. Slider; 5. Slide groove; 6. Square slot; 7. Spray head; 8. Inner slot; 9. Movable slot; 10. Swing rod; 11. Limiting slot; 12. Lifting block; 13. Spring; 14. Extrusion block; 15. Cylinder; 16. Connecting plate; 17. Liquid collection tank. Detailed Implementation
[0017] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0018] As described in the background section, some cooling devices use a fixed installation method for their spray heads, which are completely disconnected from the opening and closing state of the cooling shroud. When the cooling shroud is opened for maintenance or roll replacement, the spray heads are always exposed and are prone to rubbing against other moving parts of the rolling mill, resulting in damage to the spray heads or deviation of the spray angle. This not only increases maintenance costs but may also affect the subsequent cooling effect due to spray head failure. Since the spray heads are always aligned with the work roll when they are fixedly installed, when routine cleaning (such as removing blockages from the spray nozzles) or component replacement is required, the operator must manually pry the spray heads out from their position close to the work roll. This process must be carried out in the narrow space around the work roll, which is not only inconvenient and inefficient but also carries a higher risk.
[0019] To solve this technical problem, this utility model provides a cooling cover for the working rolls of an aluminum plate and strip rolling mill, which includes a support frame 1, a working roll assembly installed inside the support frame 1, a cooling cover 2 slidably installed on the side of the support frame 1, a pipe through groove 3 opened in the middle of the cooling cover 2, and coolant spraying assemblies provided on the upper and lower end faces of the through groove 3 in front of the cooling cover 2, and a movable groove 9 opened on the side of the coolant spraying assembly, and a driving assembly provided inside the movable groove 9.
[0020] The cooling cover 2 is slidably mounted on the side of the support frame 1. Its opening and closing state is linked with the coolant spray assembly through the drive component in the movable slot 9. When maintenance is required, the cooling cover 2 slides open, and the spray assembly moves with the drive component to the storage state. The operator does not need to perform complicated operations on the coolant spray assembly in a narrow space, which provides convenience for maintenance, reduces operational risks, and improves maintenance efficiency.
[0021] Example 1 Please refer to Figure 1 : The support frame 1 is provided with a slider 4, and the inner wall of the cooling cover 2 is provided with a groove 5, which is movably sleeved on the surface of the slider 4. The slider 4 on the surface of the support frame 1 and the groove 5 on the inner wall of the cooling cover 2 form a sliding fit structure. When the working roller assembly needs to be cooled, the cooling cover 2 slides along the slider 4 through the groove 5, so that the cooling cover 2 moves closer to the position of the working roller assembly. When cooling is not required (such as equipment maintenance, roller replacement, etc.), the cooling cover 2 slides in the opposite direction, detaches from the covering of the working roller assembly, so that the cooling cover 2 can be opened or removed. The cooperation between the slider 4 and the groove 5 provides guidance and limit for the sliding of the cooling cover 2, ensuring that the cooling cover 2 maintains a stable trajectory during the sliding process and avoids deviation or jamming.
[0022] A cylinder 15 is installed at the bottom of the support frame 1 on the side away from the cooling cover 2, and a connecting plate 16 is installed at the bottom of the cooling cover 2. The output end of the cylinder 15 is connected to the connecting plate 16. The cylinder 15 at the bottom of the support frame 1 serves as a power source, and its output end is connected to the connecting plate 16 at the bottom of the cooling cover 2, forming a power transmission structure that drives the cooling cover 2 to slide. When the piston rod of the cylinder 15 extends, it pushes the cooling cover 2 to move away from the working roller assembly through the connecting plate 16, thereby opening the cooling cover 2. When the piston rod of the cylinder 15 retracts, it pulls the cooling cover 2 to slide in the opposite direction through the connecting plate 16, thereby closing the cooling cover 2 (covering the working roller). The extension and retraction of the cylinder 15 directly drives the cooling cover 2 to complete the opening and closing without manual operation, thus realizing the automated control of the sliding of the cooling cover 2.
[0023] Example 2 Further optimizations to Example 1, specifically, such as... Figure 1-7 As shown: The coolant spray assembly includes four square slots 6, which are evenly distributed on the surface of the cooling cover 2. Spray heads 7 are movably arranged inside the square slots 6, and a rotating shaft is connected between the four spray heads 7. An inner slot 8 is formed on the surface of the movable slot 9 near the coolant spray assembly. A swing rod 10 is movably arranged inside the inner slot 8. The end of the rotating shaft is set in the inner slot 8, and the end of the rotating shaft is fixedly connected to the end face of the swing rod 10. The other end of the swing rod 10 is movably arranged in the movable slot 9. The square groove 6 provides installation space for the spray head 7, which can move within the square groove 6. The four spray heads 7 are connected as a whole by a rotating shaft. The end of the rotating shaft extends into the inner groove 8 of the movable groove 9 and is fixedly connected to the swing rod 10. When the swing rod 10 swings within the movable groove 9, it will drive the rotating shaft to rotate synchronously, thereby causing the four spray heads 7 to rotate synchronously within the square groove 6, thus realizing the adjustment of the angle of the spray head 7.
[0024] A limiting groove 11 is provided on the surface of the movable slot 9 away from the coolant spray assembly. A lifting block 12 is movably provided at one end of the movable slot 9 near the limiting groove 11. The lifting block 12 is located below the swing rod 10. A limiting block is provided on the surface of the lifting block 12 and is movably installed in the limiting groove 11. A spring 13 is provided between the bottom of the lifting block 12 and the bottom surface of the movable slot 9. The spring 13 at the bottom of the lifting block 12 has an upward elastic force in its natural state, which pushes the lifting block 12 to move upward along the limiting groove 11. When the lifting block 12 moves upward, its top pushes the end of the swing rod 10 located in the movable groove 9 to move upward synchronously, causing the swing rod 10 to swing upward with the rotation axis as the fulcrum. When the swing rod 10 swings to the point where its surface is locked at the top of the inner groove 8, the top of the inner groove 8 forms a mechanical limit on the swing rod 10, preventing it from continuing to swing. At this time, the swing rod 10 is stable at this angle. Since the swing rod 10 is fixedly connected to the rotation axis of the spray head 7, the fixed angle of the swing rod 10 drives the four spray heads 7 to rotate synchronously to the vertical state and be completely stored inside the square groove 6. In this state, there is a gap between the top of the swing rod 10 and the top of the movable groove 9, which provides space for the swing rod 10 to swing in the opposite direction and avoids structural interference.
[0025] Two pressing blocks 14 are provided on the side of the support frame 1, and the ends of the pressing blocks 14 are set as inclined surfaces; When the cooling cover 2 moves toward the support frame 1, the movable groove 9 gradually approaches the inclined surface of the extrusion block 14 and contacts the inclined surface. The inclined surface of the extrusion block 14 will press the end of the swing rod 10, forcing the swing rod 10 to swing downward against the lifting force of the spring 13, thereby driving the spray head 7 to turn out from the storage state and enter the working position.
[0026] Example 3 Further optimizations to Example 2, specifically, such as... Figure 1 As shown: A liquid collection tank 17 is provided below the support frame 1. The surface of the spray head 7 is connected to a coolant delivery system through a delivery pipe. Through the closed-loop design of coolant delivery and recycling, the cooling of the working roller and the circulation management of coolant are realized.
[0027] The usage process of the cooling cover for the work rolls of the aluminum sheet and strip rolling mill provided by this utility model is as follows: First, the piston rod of cylinder 15 extends, pushing the cooling cover 2 along the matching trajectory of the slider 4 and its own groove 5 on the surface of the support frame 1, moving away from the work roller assembly and removing its cover from the work roller. At this time, the spring 13 in the movable groove 9 pushes the lifting block 12 upward, and the lifting block 12 pushes the swing rod 10 to swing upward around the rotating shaft until the swing rod 10 is engaged at the top of the inner groove 8, driving the four spray heads 7 to rotate synchronously to a vertical position and be completely stored in the square groove 6 to avoid external interference. When the work roller needs to be cooled, the piston rod of cylinder 15 retracts, pulling the cooling cover 2 along the slider 4 and groove 5 in the opposite direction through the connecting plate 16, gradually approaching and reaching the top of the work roller assembly. As the cooling cover 2 closes, its movable groove 9 gradually approaches the extrusion block 14 on the side of the support frame 1. The inclined surface of the extrusion block 14 contacts the end of the swing rod 10 and continues to extrude, forcing the swing rod 10 to swing downward against the lifting force of the spring 13. This causes the rotating shaft and four spray heads 7 to rotate synchronously and rotate out of the square groove 6. The spray heads 7 are aligned with the surface of the work roller to complete the spraying preparation. Finally, the coolant delivery system supplies coolant to the spray heads 7 through the delivery pipe. The four spray heads 7 spray coolant synchronously onto the work roller from the upper and lower end faces to achieve precise cooling. The unabsorbed coolant drips down under the action of gravity and is collected by the collection tank 17 below the support frame 1, forming a circulation management system.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. An aluminum sheet and strip rolling mill work roll cooling shroud characterized by, It includes a support frame (1), a working roller assembly is installed inside the support frame (1), a cooling cover (2) is slidably installed on the side of the support frame (1), a pipe through groove (3) is opened at the middle end of the cooling cover (2), a coolant spray assembly is provided on the upper and lower end faces of the through groove (3) in front of the cooling cover (2), a movable groove (9) is opened on the side of the coolant spray assembly, and a drive assembly is provided inside the movable groove (9).
2. The aluminum sheet and strip mill work roll cooling shroud of claim 1 wherein, The support frame (1) has a slider (4) on its surface, and the inner wall of the cooling cover (2) has a groove (5) which is movably fitted onto the surface of the slider (4).
3. The aluminum sheet and strip mill work roll cooling shroud of claim 1 wherein, A cylinder (15) is installed at the bottom of the support frame (1) on the side away from the cooling cover (2), and a connecting plate (16) is installed at the bottom of the cooling cover (2). The output end of the cylinder (15) is connected to the connecting plate (16).
4. The aluminum sheet and strip mill work roll cooling shroud of claim 1 wherein, The coolant spray assembly includes four square slots (6), which are evenly distributed on the surface of the cooling cover (2). Spray heads (7) are movably arranged inside the square slots (6), and a rotating shaft is connected between the four spray heads (7). An inner slot (8) is opened near the surface of the coolant spray assembly in the movable slot (9). A swing rod (10) is movably arranged inside the inner slot (8). The end of the rotating shaft is located in the inner slot (8), and the end of the rotating shaft is fixedly connected to the end face of the swing rod (10). The other end of the swing rod (10) is movably arranged in the movable slot (9).
5. The aluminum sheet and strip mill work roll cooling shroud of claim 4, characterized in that, A limiting groove (11) is formed on the surface of the movable groove (9) away from the coolant spray assembly. A lifting block (12) is movably arranged inside the movable groove (9) near the end of the limiting groove (11). The lifting block (12) is located below the swing rod (10). A limiting block is provided on the surface of the lifting block (12) and is movably installed in the limiting groove (11). A spring (13) is provided between the bottom of the lifting block (12) and the bottom surface of the movable groove (9).
6. The aluminum sheet and strip mill work roll cooling shroud of claim 5 wherein, The support frame (1) has two compression blocks (14) on its side, and the ends of the compression blocks (14) are set as inclined surfaces.
7. The aluminum sheet and strip mill work roll cooling shroud of claim 4, characterized in that, A liquid collection tank (17) is provided below the support frame (1), and a coolant delivery system is connected to the surface of the spray head (7) through a delivery pipe.