Grinding machine for preparing superfine aluminum oxide

Abstract

The grinding machine comprises a fixing frame and a grinding cylinder connected to the top of the fixing frame, a grinding body is connected in the grinding cylinder and connected with a driving mechanism used for driving the grinding body to rotate, a screening plate is connected in the fixing frame, and a grinding wheel is connected in the screening plate. The screening plate is connected with a lifting mechanism used for driving lifting, the lifting mechanism comprises two lifting rods, two connecting pieces and two driven wheels, the fixing frame is used for guiding the lifting rods, the two ends of the connecting pieces are connected with the lifting rods and the driven wheels, and the driving mechanism is used for driving the two driven wheels to rotate synchronously. Materials can be ground conveniently, the ground materials fall into the fixing frame immediately, the driving wheel drives the driven wheel to rotate through the transmission belt, then the screening plate ascends and descends, the ground materials can be screened conveniently, the materials with the uniform particle size are obtained, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of alumina preparation technology, specifically a grinding machine for preparing ultrafine alumina. Background Technology

[0002] Alumina is a wear-resistant, advanced technical ceramic material commonly used in various industrial applications. It possesses high hardness and wear resistance, low corrosion levels, high temperature resistance, and is bio-inert. Furthermore, it can be highly polished, making it suitable for precision sealing applications such as pumps and pistons. Alumina is an excellent high-temperature ceramic material due to its high-temperature stability. It is one of the most commonly used types of high-grade ceramics, with a purity between 95% and 99.9%. Precision ceramics can obtain alumina in various types, including injection molding, compression molding, isostatic pressing, slip casting, and extrusion.

[0003] In the process of alumina preparation, grinding is required. Grinding is carried out using a grinding cylinder and grinding media. If the grinding is not thorough enough, the ground material may contain large particles, which will affect its subsequent use. Utility Model Content

[0004] The purpose of this invention is to provide a grinding mill for preparing ultrafine alumina, which has the advantages of facilitating the screening of ground materials, obtaining materials with uniform particle size, and facilitating subsequent use, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding machine for preparing ultrafine alumina, comprising a fixed frame and a grinding cylinder connected to the top of the fixed frame. A grinding body is connected inside the grinding cylinder, and a driving mechanism for driving the grinding body to rotate is connected to the grinding body. A screening plate is connected inside the fixed frame, and a lifting mechanism for driving the lifting plate to move up and down is connected to the screening plate. The lifting mechanism includes two lifting rods, two connecting parts, and two driven wheels. The fixed frame is used to guide the lifting rods. The two ends of the connecting parts are connected to the lifting rods and the driven wheels. The driving mechanism is used to drive the two driven wheels to rotate synchronously.

[0006] Preferably, the driving mechanism includes a motor, two drive wheels, a rotating shaft, a first conical tooth, a second conical tooth, a connecting shaft, and a grinding body. The motor drives the rotating shaft to rotate, the two drive wheels are fixed to the rotating shaft, the first conical tooth is connected to the rotating shaft and meshes with the second conical tooth, the second conical tooth is connected to the top of the connecting shaft, the connecting shaft is rotatably connected to the grinding cylinder, and the bottom of the connecting shaft is connected to the grinding body.

[0007] Preferably, the top of the fixed frame is connected to two support seats, the support seats are rotatably connected to the driven wheel, and the driven wheel is connected to the drive wheel via a transmission belt.

[0008] Preferably, a motor mount is connected to the top side of the grinding cylinder, and the motor is fixed to the motor mount.

[0009] Preferably, the fixed frame is provided with two rectangular holes, the lifting rod is slidably connected to the rectangular holes, and the bottom of the lifting rod is fixedly connected to the screening plate.

[0010] Preferably, the connecting component includes a sliding groove, a sliding block, a first positioning bolt, multiple positioning slots, a connecting plate, a second positioning bolt, multiple limiting slots, and a moving plate. The sliding groove is used to guide the sliding block. The connecting plate is connected to the sliding block. Multiple positioning slots are disposed in the sliding groove. The first positioning bolt is used to position the sliding block. One end of the moving plate is inserted into the connecting plate, and the other end is connected to the lifting rod. Multiple limiting slots are disposed in the moving plate. The second positioning bolt is used to position the moving plate.

[0011] Preferably, the sliding block is connected to a fixed shaft, the connecting plate is rotatably connected to the fixed shaft, a positioning bolt passes through the fixed shaft and the sliding block, and the positioning bolt is threadedly connected to the sliding block, with the end of the positioning bolt matching the positioning groove.

[0012] Preferably, the second positioning bolt is threaded onto the connecting plate, and the end of the second positioning bolt matches the limiting groove.

[0013] Preferably, the bottom of the fixed frame is connected to a plurality of guide seats, the guide seats are slidably connected to guide posts, the ends of the guide posts are fixedly connected to the guide posts, and the guide posts are sleeved with springs, the two ends of the springs are connected to the guide seats and the screening plate.

[0014] Preferably, the top of the grinding cylinder is connected to two bearing seats, and the rotating shaft is rotatably connected to the bearing seats.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is equipped with a drive mechanism and a lifting mechanism. The motor drives the rotating shaft, two drive wheels and a conical tooth 1 to rotate. The conical tooth 1 and the conical tooth 2 cooperate to realize the rotation of the grinding body, which facilitates the grinding of materials. After grinding, the materials fall into the fixed frame. The drive wheel drives the driven wheel to rotate through the transmission belt. With the use of the connecting parts, the lifting rod can be driven to lift and lower, thereby realizing the lifting and lowering of the screening plate. This facilitates the screening of the ground materials and obtains materials with uniform particle size, making it highly practical. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 for Figure 1 A partial view;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the internal structure of the grinding cylinder of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the grinding cylinder and the fixing frame of this utility model;

[0021] Figure 6 This is a schematic diagram of the lifting mechanism structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the bottom structure of the fixed frame of this utility model;

[0023] Figure 8 for Figure 7 A partial view.

[0024] In the diagram: 1. Grinding cylinder; 2. Fixed frame; 3. Screening plate; 4. Feed inlet; 5. Motor; 6. Motor base; 7. Drive wheel; 8. Rotating shaft; 9. Transmission belt; 10. Conical tooth one; 11. Conical tooth two; 12. Connecting shaft; 13. Grinding body; 14. Lifting rod; 15. Rectangular hole; 16. Support seat; 17. Driven wheel; 18. Slide groove; 19. Sliding block; 20. Positioning bolt one; 21. Positioning groove; 22. Connecting plate; 23. Positioning bolt two; 24. Limiting groove; 25. Moving plate; 26. Guide post; 27. Spring; 28. Guide seat. Detailed Implementation

[0025] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 8This utility model provides a grinding mill for preparing ultrafine alumina, including a fixed frame 2 and a grinding cylinder 1 connected to the top of the fixed frame 2. A grinding body 13 is connected inside the grinding cylinder 1. The outer side of the grinding body 13 is parallel to the inner side of the bottom of the grinding cylinder 1. At the same time, the top of the grinding body 13 is an arc-shaped smooth surface, which can reduce the adhesion of materials. The grinding body 13 is connected to a drive mechanism for driving the grinding body 13 to rotate. A screening plate 3 is connected inside the fixed frame 2. The screening plate 3 is connected to a lifting mechanism for driving lifting. The lifting mechanism includes two lifting rods 14, two connecting parts, and two driven wheels 17. The fixed frame 2 is used to guide the lifting rods 14. The two ends of the connecting parts are connected to the lifting rods 14 and the driven wheels 17. The drive mechanism is used to drive the two driven wheels 17 to rotate synchronously.

[0027] The top of the grinding cylinder 1 is provided with a feed inlet 4, through which the material enters the grinding cylinder 1. The motor 5 drives the rotating shaft 8 to rotate, which can synchronously drive the two drive wheels 7 and the first conical tooth 10 to rotate. The first conical tooth 10 drives the second conical tooth 11 to rotate, thereby realizing the rotation of the connecting shaft 12 and the grinding body 13, which facilitates the grinding of the material.

[0028] The drive mechanism includes a motor 5, two drive wheels 7, a rotating shaft 8, a first conical gear 10, a second conical gear 11, a connecting shaft 12, and a grinding body 13. The motor 5 drives the rotating shaft 8 to rotate. The two drive wheels 7 are fixed to the rotating shaft 8. The first conical gear 10 is connected to the rotating shaft 8, and the first conical gear 10 meshes with the second conical gear 11, resulting in high transmission efficiency and a constant transmission ratio. The second conical gear 11 is connected to the top of the connecting shaft 12, which is rotatably connected to the grinding cylinder 1, ensuring stable rotation of the connecting shaft 12 and guaranteeing the stability of the grinding body 13's rotation. The bottom of the connecting shaft 12 is connected to the grinding body 13.

[0029] The top of the fixed frame 2 is connected to two support seats 16. The support seats 16 are rotatably connected to the driven wheel 17. The driven wheel 17 is connected to the drive wheel 7 through the transmission belt 9. The rotation of the drive wheel 7 drives the rotation of the driven wheel 17 through the transmission belt 9.

[0030] A motor base 6 is connected to the top side of the grinding cylinder 1. The motor 5 is fixed to the motor base 6, which provides support for the motor 5 and improves the stability of the motor 5.

[0031] The fixed frame 2 is provided with two rectangular holes 15. The lifting rod 14 is slidably connected to the rectangular holes 15, and the bottom of the lifting rod 14 is fixedly connected to the screening plate 3. The rectangular holes 15 guide the lifting rod 14. In conjunction with the use of the guide column 26, the stability of the lifting of the screening plate 3 is improved.

[0032] The connecting components include a chute 18, a sliding block 19, a first positioning bolt 20, multiple positioning slots 21, a connecting plate 22, a second positioning bolt 23, multiple limiting slots 24, and a moving plate 25. The chute 18 guides the sliding block 19, the connecting plate 22 is connected to the sliding block 19, multiple positioning slots 21 are located within the chute 18, the first positioning bolt 20 is used for positioning the sliding block 19, one end of the moving plate 25 is inserted into the connecting plate 22, and the other end is connected to the lifting rod 14, multiple limiting slots 24 are located within the moving plate 25, and the second positioning bolt 23 is used for positioning the moving plate 25. The rotation of the driven wheel 17 synchronously drives the rotation of the sliding block 19. The sliding block 19 synchronously applies tension or thrust to the connecting plate 22 and the moving plate 25, causing the lifting rod 14 to slide up and down along the height direction of the rectangular hole 15, thereby driving the screening plate 3 to rise and fall, facilitating screening operations and obtaining materials of uniform size.

[0033] The sliding block 19 is connected to a fixed shaft, and the connecting plate 22 is rotatably connected to the fixed shaft. A positioning bolt 20 passes through the fixed shaft and the sliding block 19, and is threadedly connected to the sliding block 19. The end of the positioning bolt 20 matches the positioning groove 21. The sliding block 19 slides on the slide groove 18, causing the moving plate 25 to slide relative to the connecting plate 22, thereby changing the position of the sliding block 19. The positioning bolt 20 is then rotated so that its end connects to the positioning groove 21, thus locking and limiting the sliding block 19. The positioning bolt 23 is rotated to connect with the limiting groove 24, locking the connecting plate 22 and the moving plate 25 together. This makes the overall length of the connecting plate 22 and the moving plate 25 adjustable, allowing for adjustable lifting and lowering of the screening plate 3 and improving the screening effect.

[0034] The second positioning bolt 23 is threadedly connected to the connecting plate 22, and the end of the second positioning bolt 23 matches the limiting groove 24.

[0035] The bottom of the fixed frame 2 is connected to multiple guide seats 28, and guide posts 26 are slidably connected to the guide seats 28. The ends of the guide posts 26 are fixedly connected to each other, and springs 27 are sleeved on the guide posts 26. The two ends of the springs 27 are connected to the guide seats 28 and the screening plate 3. The lifting and lowering of the screening plate 3 can synchronously drive the lifting and lowering of the guide posts 26. The guide posts 26 and the guide seats 28 slide relative to each other, and the springs 27 are compressed or stretched, which facilitates the lifting and lowering of the screening plate 3.

[0036] The top of the grinding cylinder 1 is connected to two bearing seats, and the rotating shaft 8 is rotatably connected to the bearing seats to improve the stability of the rotation of the rotating shaft 8.

[0037] Working principle: Material is fed into the grinding cylinder 1 through the feed inlet 4. The motor 5 drives the rotating shaft 8 to rotate, which in turn drives the two drive wheels 7 and the first conical gear 10 to rotate. The first conical gear 10 and the second conical gear 11 cooperate to realize the rotation of the connecting shaft 12 and the grinding body 13, facilitating the grinding of the material. After grinding, the material is discharged from the bottom of the grinding cylinder 1 into the fixed frame 2. The drive wheels 7 drive the driven wheel 17 to rotate through the transmission belt 9. With the use of the connecting parts, the lifting rod 14 can be raised and lowered. The lifting rod 14 drives the screening plate 3 to be raised and lowered, facilitating the screening of the ground material to obtain material with uniform particle size for subsequent processing.

[0038] 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 grinding mill for preparing ultrafine alumina, characterized in that, The utility model provides a kind of grinding device, including fixed frame (2) and connect in fixed frame (2) top grinding cylinder (1), the grinding body (13) is connected in the grinding cylinder (1), the grinding body (13) is connected with the drive mechanism for driving the rotation of grinding body (13), the fixed frame (2) is connected with screening plate (3) inside, the screening plate (3) is connected with lift mechanism for driving lift, the lift mechanism includes two lift rods (14), two connecting pieces, two driven wheels (17), the fixed frame (2) is used for lift rod (14) guide, the two ends of connecting piece are connected with lift rod (14), driven wheel (17), the drive mechanism is used to drive two driven wheels (17) synchronous rotation.

2. The grinding machine for preparing ultrafine alumina according to claim 1, wherein The drive mechanism includes motor (5), two drive wheels (7), rotating shaft (8), cone gear one (10), cone gear two (11), connecting shaft (12), grinding body (13), the motor (5) is used to drive rotating shaft (8) rotation, two drive wheels (7) are fixed to rotating shaft (8), the cone gear one (10) is connected to rotating shaft (8), and the cone gear one (10) is meshed with cone gear two (11) connection, the cone gear two (11) is connected to the top of connecting shaft (12), the connecting shaft (12) is rotatably connected to grinding cylinder (1), and the bottom of connecting shaft (12) is connected with grinding body (13).

3. The grinder for preparing ultrafine alumina according to claim 2, wherein The top of the fixed frame (2) is connected with two support seats (16), the support seat (16) is rotatably connected with driven wheel (17), and the driven wheel (17) is drivingly connected with drive wheel (7) through transmission belt (9).

4. The grinding machine for preparing ultrafine alumina according to claim 2, wherein The side top of the grinding cylinder (1) is connected with motor base (6), and the motor (5) is fixed to the motor base (6).

5. The grinding machine for preparing ultrafine alumina according to claim 1, wherein The fixed frame (2) is provided with two rectangular holes (15), the lift rod (14) is slidably connected to the rectangular hole (15), and the bottom of the lift rod (14) is fixedly connected with the screening plate (3).

6. The grinding machine for preparing ultrafine alumina according to claim 1, wherein The connecting piece includes sliding groove (18), sliding block (19), positioning bolt one (20), a plurality of positioning grooves (21), connecting plate (22), positioning bolt two (23), a plurality of limiting grooves (24), moving plate (25), the sliding groove (18) is used for guiding the sliding block (19), the connecting plate (22) is connected to the sliding block (19), a plurality of positioning grooves (21) are arranged in the sliding groove (18), the positioning bolt one (20) is used for positioning the sliding block (19), one end of the moving plate (25) is inserted into the connecting plate (22), the other end is connected with the lift rod (14), a plurality of limiting grooves (24) are arranged in the moving plate (25), and the positioning bolt two (23) is used for positioning the moving plate (25).

7. The grinding machine for preparing ultrafine alumina according to claim 6, wherein The sliding block (19) is connected with a fixed shaft, the connecting plate (22) is rotatably connected to the fixed shaft, the positioning bolt one (20) penetrates the fixed shaft and the sliding block (19), and the positioning bolt one (20) is threadedly connected with the sliding block (19), and the end of the positioning bolt one (20) is matched with the positioning groove (21).

8. The grinding machine for preparing ultrafine alumina according to claim 6, wherein The positioning bolt two (23) is threadedly connected to the connecting plate (22), and the end of the positioning bolt two (23) is matched with the limiting groove (24).

9. The grinding machine for preparing ultrafine alumina according to claim 1, wherein The bottom of the fixed frame (2) is connected with a plurality of guide seats (28), the guide seat (28) is slidingly connected with a guide column (26), the end of the guide column (26) is fixedly connected with the guide column (26), and the guide column (26) is sleeved with a spring (27), and the two ends of the spring (27) are connected with the guide seat (28) and the screening plate (3).

10. The grinding machine for preparing ultrafine alumina according to claim 2, wherein The top of the grinding cylinder (1) is connected with two bearing seats, and the rotating shaft (8) is rotatably connected with the bearing seat.

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