A structure for preventing adhesion to a surface of a grinding roller

Abstract

The application relates to the technical field of grinding equipment, in particular to a grinding roller surface anti-sticking structure which comprises a rack, eccentric wheels arranged at the two ends of a rotating shaft on the rack, rotating wheels in contact with the eccentric wheels arranged at the two sides of a cleaning roller below the rotating shaft, sliding blocks in sliding grooves on the two sides of the rack in rotary connection with the cleaning roller, return compression springs arranged above and below the sliding blocks, and a transmission mechanism on the rack for driving the cleaning roller to work. The structure can efficiently clean the surface of the grinding roller, reduce material adhesion, and improve the working performance of the equipment.

Description

Technical Field

[0001] This application relates to the field of grinding equipment technology, and in particular to an anti-sticking structure on the surface of a grinding roller. Background Technology

[0002] In practical applications of grinding equipment, material tends to adhere to the surface of the grinding rollers during the grinding process, which seriously affects grinding efficiency and quality. Taking the processing of highly moist and sticky materials such as slag as an example, after the vertical mill rollers are compressed, the damp material easily adheres to the surface of the rollers. As the rollers continue to rotate, the area of ​​material adhering to the roller surface gradually increases, and the material thickness between the roller and the grinding disc increases, forming a "pancake" shape. This not only leads to increased vibration amplitude of the rollers during the rolling process, affecting the normal operation of the equipment, but also results in uneven particle size of the ground material, reducing product quality. Some domestic companies have tried to install scrapers on the upper end of the grinding rollers to remove the material adhering to the roller surface, but the cleaning effect of static scrapers is limited and cannot achieve the ideal cleaning purpose. Moreover, simply installing scrapers cannot solve the problem that the material and the surface of the grinding rollers are still highly moist. In subsequent rolling processes, the two are still prone to re-adhesion, making it difficult to ensure the long-term effective operation of the equipment.

[0003] To address this problem, an anti-sticking structure for the surface of a grinding roller is invented. Utility Model Content

[0004] The purpose of this invention is to provide an anti-sticking structure for the surface of a grinding roller, thereby solving the problems of reduced grinding efficiency, decreased quality, and impaired equipment operation caused by material adhesion on the surface of the grinding roller in the prior art. This structure enables automatic and efficient cleaning of the grinding roller surface, reducing material adhesion and improving the working performance and stability of the grinding equipment.

[0005] This application provides an anti-sticking structure for the surface of a grinding roller, which adopts the following technical solution: It includes a frame, a rotating shaft mounted on the frame, and eccentric wheels mounted at both ends of the rotating shaft; a cleaning roller is mounted below the rotating shaft, and rotating wheels connected to the eccentric wheels are located on both sides of the cleaning roller; sliding grooves are provided on both sides of the frame, and sliding blocks are slidably fitted within the grooves; the two ends of the cleaning roller are rotatably connected to the sliding blocks, and reset springs are provided on the upper and lower sides of the sliding blocks; a transmission mechanism is provided on the frame to drive the cleaning roller to clean the grinding roller.

[0006] Optionally, the transmission mechanism includes a drive motor, which is located on one side of the frame and its output end is connected to the rotating shaft. The other end of the rotating shaft is provided with a first driving bevel gear, and the frame is also provided with a first driven bevel gear that meshes with the first driving bevel gear. A transmission rod is fixed on the first driven bevel gear.

[0007] Optionally, the end of the cleaning roller is provided with a second driven bevel gear, and a second driving bevel gear that meshes with the second driven bevel gear is rotatably connected to the sliding block. The second driving bevel gear is rotatably connected to the sliding block, and the transmission rod passes through the second driving bevel gear and can slide relative to the second driving bevel gear.

[0008] Optionally, the outer contour of the eccentric wheel is circular, and the offset distance between the rotation center of the eccentric wheel and the center of the circle is 3-8mm.

[0009] Optionally, the transmission rod and the second active bevel gear are slidably connected, and the length of the sliding engagement is not less than the maximum displacement of the cleaning roller caused by the eccentric wheel.

[0010] Optionally, the outer surface of the cleaning roller is uniformly distributed with nylon bristles.

[0011] In summary, this application includes the following beneficial technical effects: 1. The cleaning roller can not only rotate under the action of the eccentric wheel, but also move up and down. Compared with the traditional static cleaning device, it can clean the material on the surface of the grinding roller more comprehensively and efficiently, greatly improving the cleaning effect and effectively reducing the adhesion of materials. The cleaning roller will also vibrate when it moves up and down, which can further improve the effect of removing the attached substances. 2. The overall structure uses common mechanical components, such as eccentric wheels, bevel gears, and transmission rods. The cooperation logic between the components is clear, and the connection method is simple and reliable, which reduces the manufacturing and maintenance costs of the equipment. It is also highly stable and can adapt to long-term operation. 3. The eccentricity setting of the eccentric wheel can be reasonably selected according to different grinding materials and working conditions, so that the displacement of the cleaning roller can adapt to different needs and enhance the adaptability of the equipment to various working scenarios; 4. By driving the entire transmission mechanism with a drive motor, the cleaning roller automatically cleans the surface of the grinding roller without frequent manual intervention, thus improving production efficiency and reducing labor costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the device; Figure 2 This is the front view of the device; Figure 3 This is a cross-sectional view of the overall structure of the device. Figure I ; Figure 4 This is a cross-sectional view of the overall structure of the device. Figure II ; Figure 5 For this device Figure 1Enlarged view of A in the middle; The components include: 1. Frame; 2. Rotating shaft; 3. Eccentric wheel; 4. Cleaning roller; 5. Rotating wheel; 6. Slide groove; 7. Sliding block; 8. Return spring; 9. Transmission mechanism; 10. Drive motor; 11. First driving bevel gear; 12. First driven bevel gear; 13. Transmission rod; 14. Second driven bevel gear; 15. Second driving bevel gear; and 16. Nylon brush. Detailed Implementation

[0013] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0014] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 One embodiment shown is as follows: The anti-stick structure on the surface of the grinding roller includes a frame 1. A rotating shaft 2 is rotatably connected to the middle of the frame 1 via a bearing. Eccentric wheels 3 are fixedly installed at both ends of the rotating shaft 2 via keys. A cleaning roller 4 is arranged directly below the rotating shaft 2. Rotating wheels 5 are rotatably connected to both ends of the cleaning roller 4 via bearings. The outer circumferential surface of the rotating wheel 5 is in contact with the outer circumferential surface of the eccentric wheel 3. Sliding grooves 6 are respectively opened on both side walls of the frame 1 in the vertical direction. Sliding blocks 7 are slidably fitted in the sliding grooves 6. Both ends of the cleaning roller 4 are rotatably connected to the sliding blocks 7 via bearings. One end of a reset spring 8 is welded to the upper and lower surfaces of the sliding blocks 7, respectively. The other end of the reset spring 8 is welded and fixed to the upper and lower walls of the sliding grooves 6, respectively. A transmission mechanism 9 is arranged on one side of the frame 1. The transmission mechanism 9 is used to drive the cleaning roller 4 to rotate to clean the grinding roller.

[0015] The implementation principle of the above embodiment is as follows: When the transmission mechanism 9 drives the rotating shaft 2 to rotate, the eccentric wheels 3 at both ends of the rotating shaft 2 rotate together with it. Since the eccentric wheels 3 are in contact with the rotating wheel 5, the rotation of the eccentric wheels 3 will push the rotating wheel 5 to move up and down, thereby driving the cleaning roller 4 to move up and down. When the cleaning roller 4 moves up and down, the sliding blocks 7 at both ends will slide up and down synchronously in the sliding grooves 6 on both sides of the frame 1. The reset springs 8 on both sides of the sliding blocks 7 will be compressed or stretched due to the movement of the sliding blocks 7, thereby generating elastic force. This elastic force can keep the rotating wheel 5 in close contact with the eccentric wheel 3, ensuring the stability of the cleaning roller 4 moving up and down. At the same time, the transmission mechanism 9 drives the cleaning roller 4 to rotate itself. The cleaning roller 4 rotates while moving up and down, which can clean the surface of the grinding roller comprehensively and efficiently, reducing the adhesion of materials on the surface of the grinding roller. Nylon brushes 16 are evenly distributed on the outer surface of the cleaning roller 4.

[0016] In the above embodiment, the improvement in the removal effect of the cleaning roller 4 by the vibration generated during its up-and-down movement is specifically manifested in the following way: when the eccentric wheel 3 rotates and drives the rotating wheel 5 to move up and down, the cleaning roller 4 does not move along a smooth linear trajectory, but rather exhibits an up-and-down movement state with slight bumps under the combined action of the periodic force of the eccentric wheel 3 and the elastic restoring force of the return spring 8. This movement state causes the contact force between the brush on the cleaning roller 4 and the surface of the grinding roller to change periodically. When the cleaning roller 4 moves downward, the contact pressure with the surface of the grinding roller increases instantaneously, which can generate a strong peeling force for more stubborn adhered materials; while when the cleaning roller 4 moves upward, the contact pressure decreases briefly, and the vibration generated by the pressure change at this time makes it easier for the loosened material on the surface of the grinding roller to detach.

[0017] Simultaneously, this vibration is transmitted to the surface of the grinding roller, subjecting the adhered material to high-frequency vibration impacts and weakening the bond between the material and the grinding roller surface. For materials tightly adhered to the grinding roller surface due to static electricity, intermolecular forces, etc., the vibration can break their stable adhesion, allowing the cleaning roller 4 to remove them more easily during the rotation cleaning process. In addition, the vibration can also cause any small amount of material that may be adhering to the surface of the cleaning roller 4 to fall off, preventing the cleaning roller 4 from being affected by material accumulation and thus ensuring continuous and efficient cleaning of the grinding roller surface.

[0018] Reference Figure 1 , Figure 2 , Figure 5One embodiment shown is as follows: The transmission mechanism 9 includes a drive motor 10, which is fixedly mounted on the outer wall of one side of the frame 1 by bolts. The output shaft of the drive motor 10 is connected to one end of the rotating shaft 2 by a coupling. The other end of the rotating shaft 2 is fixedly fitted with a first driving bevel gear 11 by a key. A first driven bevel gear 12 is rotatably connected to the frame 1 below the first driving bevel gear 11 by a bearing. The first driven bevel gear 12 meshes with the first driving bevel gear 11. A transmission rod 13 is fixedly connected to the axis of the first driven bevel gear 12 by a key. The transmission rod 13 is arranged in the horizontal direction.

[0019] The implementation principle of the above embodiment is as follows: the drive motor 10 is started, and the output shaft of the drive motor 10 drives the rotating shaft 2 to rotate through the coupling. When the rotating shaft 2 rotates, it will drive the first active bevel gear 11 at its other end to rotate synchronously. Since the first active bevel gear 11 meshes with the first driven bevel gear 12, the rotation of the first active bevel gear 11 will drive the first driven bevel gear 12 to rotate, thereby causing the transmission rod 13 fixed on the first driven bevel gear 12 to rotate together. By providing power through the drive motor 10, the synchronous rotation of the rotating shaft 2 and the transmission rod 13 is realized, providing a power source for the up and down movement of the cleaning roller 4 and its own rotation, ensuring a stable and reliable power supply for the entire cleaning process.

[0020] Reference Figure 1 , Figure 2 , Figure 5 One embodiment shown is as follows: a second driven bevel gear 14 is fixedly sleeved on one end of the cleaning roller 4 by a key connection, and a second driving bevel gear 15 is rotatably connected to the sliding block 7 near the second driven bevel gear 14 by a bearing. The second driving bevel gear 15 and the second driven bevel gear 14 mesh with each other. The end of the transmission rod 13 away from the first driven bevel gear 12 passes through the axis of the second driving bevel gear 15. The transmission rod 13 and the inner hole of the second driving bevel gear 15 are clearance fit, so that relative sliding can occur between them.

[0021] The implementation principle of the above embodiment is as follows: When the transmission rod 13 rotates, since the transmission rod 13 passes through the second active bevel gear 15 and the two can slide relative to each other, the transmission rod 13 will drive the second active bevel gear 15 to rotate together; the second active bevel gear 15 meshes with the second driven bevel gear 14 at the end of the cleaning roller 4, so the rotation of the second active bevel gear 15 will drive the second driven bevel gear 14 to rotate, thereby causing the cleaning roller 4 to rotate itself; when the cleaning roller 4 moves up and down, the sliding block 7 will drive the second active bevel gear 15 to move up and down synchronously. At this time, relative sliding occurs between the transmission rod 13 and the second active bevel gear 15, which not only ensures the power transmission of the transmission rod 13 to the second active bevel gear 15, but also does not affect the up and down movement of the cleaning roller 4, thereby realizing that the cleaning roller 4 rotates while moving up and down, ensuring the smooth progress of the cleaning work.

[0022] Reference Figure 1 , Figure 2 , Figure 5 One embodiment shown is as follows: the outer contour of the eccentric wheel 3 is circular, the eccentric wheel 3 is sleeved on the rotating shaft 2, and its rotation center is the axis of the rotating shaft 2. The offset distance between the rotation center and the center of the eccentric wheel 3 is 5mm (within the range of 3-8mm).

[0023] The implementation principle of the above embodiment is as follows: the outer contour of the eccentric wheel 3 is set to be circular, so that its contact with the rotating wheel 5 is more stable during rotation, reducing friction and wear between the two; the offset distance between the rotation center of the eccentric wheel 3 and the center of the circle is set to 3-8mm. When the eccentric wheel 3 rotates, it will push the rotating wheel 5 to produce a corresponding up and down displacement, thereby driving the cleaning roller 4 to move up and down. This displacement range can adapt to the cleaning needs of different grinding roller surfaces, ensuring that there is sufficient contact force between the cleaning roller 4 and the grinding roller to remove the adhering material, and that the grinding roller or cleaning roller 4 will not be damaged due to excessive displacement, thus ensuring the cleaning effect and the safety of the equipment.

[0024] Reference Figure 4 , Figure 5 One embodiment shown is as follows: the transmission rod 13 and the second active bevel gear 15 are slidably connected. Specifically, the outer surface of the transmission rod 13 and the surface of the inner hole of the second active bevel gear 15 are smoothly fitted, and the two can slide relative to each other along the axial direction. The length of the part of the transmission rod 13 that fits with the second active bevel gear 15 is 15mm, while the maximum displacement of the cleaning roller 4 due to the action of the eccentric wheel 3 is 10mm. That is, the sliding fit length is not less than the maximum displacement of the cleaning roller 4.

[0025] The implementation principle of the above embodiment is as follows: When the cleaning roller 4 moves up and down under the action of the eccentric wheel 3, it will drive the sliding block 7 and the second active bevel gear 15 to move up and down synchronously. At this time, relative sliding will occur between the transmission rod 13 and the second active bevel gear 15. Since the sliding engagement length between the transmission rod 13 and the second active bevel gear 15 is not less than the maximum displacement of the cleaning roller 4, it can be ensured that the transmission rod 13 always maintains the engagement state with the second active bevel gear 15 during the entire process of the cleaning roller 4 moving up and down, and there will be no disengagement. This ensures that the power can be continuously and stably transmitted from the transmission rod 13 to the second active bevel gear 15, and ensures that the cleaning roller 4 can continue to rotate for cleaning work.

[0026] The working principle of this device is as follows: The drive motor 10 starts, driving the rotating shaft 2 to rotate via the coupling. The eccentric wheels 3 at both ends of the rotating shaft 2 rotate accordingly, pushing the rotating wheels 5 on both sides of the cleaning roller 4, causing the cleaning roller 4 to move up and down. When the cleaning roller 4 moves, the sliding blocks 7 at both ends slide within the grooves 6 of the frame 1, compressing or stretching the return spring 8 to ensure close contact between the rotating wheels 5 and the eccentric wheels 3. Simultaneously, the first driving bevel gear 11 at the other end of the rotating shaft 2 drives the meshing first driven bevel gear 12 to rotate, causing the transmission rod 13 to rotate. The transmission rod 13 drives the second driving bevel gear 15 on the sliding block 7 to rotate, meshing with the second driven bevel gear 14 at the end of the cleaning roller 4, causing the cleaning roller 4 to rotate. The cleaning roller 4 rotates while moving up and down, achieving comprehensive and efficient cleaning of the grinding roller surface and reducing material adhesion. The sliding engagement between the transmission rod 13 and the second driving bevel gear 15 ensures stable power transmission.

[0027] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A non-stick structure for the surface of a grinding roller, characterized in that: The machine includes a frame (1), on which a rotating shaft (2) is provided, and eccentric wheels (3) are installed at both ends of the rotating shaft (2); a cleaning roller (4) is provided below the rotating shaft (2), and rotating wheels (5) are provided on both sides of the cleaning roller (4) and are in contact with the eccentric wheels (3); a sliding groove (6) is provided on both sides of the frame (1), and a sliding block (7) is slidably fitted in the sliding groove (6), and the two ends of the cleaning roller (4) are rotatably connected to the sliding block (7), and a reset spring (8) is provided on the upper and lower sides of the sliding block (7); a transmission mechanism (9) is provided on the frame (1) for driving the cleaning roller (4) to clean the grinding roller.

2. The anti-sticking structure on the surface of a grinding roller according to claim 1, characterized in that: The transmission mechanism (9) includes a drive motor (10), which is located on one side of the frame (1) and its output end is connected to the rotating shaft (2). The other end of the rotating shaft (2) is provided with a first active bevel gear (11), and the frame (1) is also provided with a first driven bevel gear (12) that meshes with the first active bevel gear (11). A transmission rod (13) is fixed on the first driven bevel gear (12).

3. The anti-sticking structure on the surface of a grinding roller according to claim 2, characterized in that: The cleaning roller (4) is provided with a second driven bevel gear (14) at its end. A second driving bevel gear (15) that meshes with the second driven bevel gear (14) is rotatably connected to the sliding block (7). The second driving bevel gear (15) is rotatably connected to the sliding block (7). The transmission rod (13) passes through the second driving bevel gear (15) and can slide relative to the second driving bevel gear (15).

4. The anti-sticking structure on the surface of a grinding roller according to claim 1, characterized in that: The outer contour of the eccentric wheel (3) is circular, and the offset distance between the rotation center of the eccentric wheel (3) and the center of the circle is 3-8mm.

5. The anti-sticking structure on the surface of a grinding roller according to claim 3, characterized in that: The transmission rod (13) and the second active bevel gear (15) are slidably connected, and the length of the sliding engagement is not less than the maximum displacement of the cleaning roller (4) caused by the action of the eccentric wheel (3).

6. The anti-sticking structure on the surface of a grinding roller according to claim 1, characterized in that: The outer surface of the cleaning roller (4) is uniformly covered with nylon brushes (16).

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