Silicon carbide abrasive screening device
By designing a silicon carbide abrasive screening device with a combination of a feeding screen plate and a screen mesh, the problem of uneven screening caused by silicon carbide abrasive accumulation was solved, and uniform and efficient screening and multi-stage separation of silicon carbide abrasive were achieved.
Patent Information
- Application Number
- CN202422693457.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing silicon carbide abrasive screening equipment is prone to silicon carbide abrasive accumulation, resulting in uneven and inefficient screening.
A silicon carbide abrasive screening device was designed, which adopts a combination structure of a feeding screen plate and a screen mesh. The feeding screen plate is swung left and right by a push-pull rod driven by a crank plate to achieve uniform dispersion of silicon carbide abrasive, and multi-stage screening is performed through multi-stage screen mesh.
This method achieves uniform and efficient screening of silicon carbide abrasives, improves screening effect, ensures that abrasives of different particle sizes are separated according to particle size, and improves screening efficiency.
Smart Images
Figure CN223616245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silicon carbide abrasive processing technology, specifically a silicon carbide abrasive screening device. Background Technology
[0002] Silicon carbide abrasive is a man-made material, produced by high-temperature smelting of raw materials such as quartz sand, petroleum coke (or coal coke), and sawdust (salt is added when producing green silicon carbide) in an electric resistance furnace. Pure silicon carbide is a colorless and transparent crystal.
[0003] Before silicon carbide abrasives can be put into use, they need to be screened to separate silicon carbide abrasives of different sizes. Therefore, screening equipment is used. Most existing silicon carbide abrasive screening equipment screens silicon carbide abrasives directly through screens. This screening method tends to cause silicon carbide abrasives to accumulate together, making the screening of silicon carbide abrasives less uniform and efficient. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a silicon carbide abrasive screening device, which solves the problem of inconvenience in uniformly and efficiently screening silicon carbide abrasive that is piled up together during the screening and processing of silicon carbide abrasive.
[0006] (II) Technical Solution
[0007] To achieve the aforementioned goal of facilitating the uniform and efficient screening of accumulated silicon carbide abrasives during the screening process, this utility model provides the following technical solution: a silicon carbide abrasive screening device, comprising a housing, a feeding box fixed on the top of the housing, motors installed on the front and back of the housing, an inner discharge port in the center of the front of the housing, outer discharge ports on both sides of the front of the housing, a side discharge port on the side of the housing, a material-pushing screen plate rotatably mounted on the front and rear inner walls of the housing via pivot pins, a material-pushing passage on the surface of the material-pushing screen plate, a material-pushing screen installed inside the material-pushing passage, and a base platform fixed to the bottom of the housing.
[0008] A lower screen plate is fixed on the base platform, and an upper screen plate is fixed on the lower screen plate. The top of the upper screen plate is fixedly connected to the inner wall of the feeding box. An upper opening is opened on the surface of the upper screen plate, and a lower opening is opened on the surface of the lower screen plate. The gap between the two lower screen plates forms a material drop trough. An upper screen is installed inside the upper opening, and a lower screen is installed inside the lower opening. An inner inclined surface is opened in the middle of the upper surface of the base platform, and outer inclined surfaces are opened on both sides of the upper surface of the base platform. A crank is fixed at the output end of the motor, and a transition block is fixed on the outer surface of the feeding screen plate. A push-pull rod is rotated between the crank and the transition block through a pivot pin.
[0009] Preferably, the curved disk consists of two sets of disks with different diameters, and the larger diameter disk and the smaller diameter disk have different centers. The push-pull rod is rotatably connected to the non-center of the curved disk through a pivot pin. The curved disk is rotatably connected to the feeding screen plate through a transition block and the push-pull rod.
[0010] Preferably, the feeding screen plate is located directly below the feeding box, the feeding screen plate is rotatably connected to the machine housing via a pivot pin, and the front and rear sides of the feeding screen plate are slidably connected to the front and rear inner walls of the machine housing.
[0011] Preferably, the inner inclined surface is located between the two lower screen plates and is connected to the inner discharge port, and the outer inclined surface is located on the inner side of the lower screen plate and is connected to the outer discharge port.
[0012] Preferably, the upper screen plate is obtuse-angled, and the two sets of upper screen plates are located diagonally below the feeding screen plate. The lower screen plate is trapezoidal, and the lower screen plate is located directly below the upper screen plate.
[0013] Preferably, the side discharge port is located on the outside of the upper screen plate and is connected to the bottom end of the inclined surface of the upper screen plate.
[0014] Preferably, the top of the feeding screen plate is provided with an inwardly inclined obtuse-angled baffle, and the feeding screen plate is initially positioned at an incline.
[0015] Preferably, the front and rear sides of the upper and lower screen plates are fixedly connected to the front and rear inner walls of the machine casing.
[0016] Compared with the prior art, this utility model provides a silicon carbide abrasive screening device, which has the following features:
[0017] Beneficial effects:
[0018] 1. This silicon carbide abrasive screening device, when the crank disc rotates, can cause the feeding screen plate to swing back and forth in the left and right directions through the push-pull rod. During the process of the feeding screen plate swinging to the right, the silicon carbide abrasive on the left inclined surface of the feeding screen can be splashed and dispersed to the right inclined surface. During the process of the feeding screen plate swinging to the left, the silicon carbide abrasive on the right inclined surface of the feeding screen can be splashed and dispersed to the left inclined surface. Therefore, the feeding screen can splash and disperse the silicon carbide abrasive on the left and right sides, so that the dispersed silicon carbide abrasive can be screened evenly.
[0019] 2. In this silicon carbide abrasive screening device, a portion of the silicon carbide abrasive after being screened by the feeding screen falls onto the inner inclined surface and is discharged from the inner outlet. Another portion of the silicon carbide abrasive after being screened by the feeding screen falls onto the upper screen. The smaller silicon carbide abrasive after being screened by the upper screen falls onto the lower screen, while the larger silicon carbide abrasive slides onto the inner inclined surface and is discharged from the inner outlet. The smaller silicon carbide abrasive after being screened by the lower screen falls onto the outer inclined surface and is discharged from the outer outlet. The larger silicon carbide abrasive after being screened by the lower screen slides onto the side outlet and is discharged from the side outlet. This allows for multi-stage screening of silicon carbide abrasive. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a main sectional view of the structure of this utility model;
[0022] Figure 3 This is a partial sectional view of the structural chassis of this utility model;
[0023] Figure 4 This is a schematic diagram of the material feeding screen plate of this utility model;
[0024] Figure 5 This is a combined diagram of the base platform, upper sieve plate, and lower sieve plate of this utility model.
[0025] Figure 6 This is a schematic diagram of the curved disk structure of this utility model.
[0026] The components are: 1. Chassis; 2. Feeding box; 3. Motor; 4. Inner discharge port; 5. Outer discharge port; 6. Side discharge port; 7. Feeding screen plate; 8. Feeding through port; 9. Feeding screen mesh; 10. Base platform; 11. Upper screen plate; 12. Upper through port; 13. Lower screen plate; 14. Lower through port; 15. Drop chute; 16. Upper screen mesh; 17. Lower screen mesh; 18. Inner inclined surface; 19. Outer inclined surface; 20. Curved plate; 21. Adapter block; 22. Push-pull rod. Detailed Implementation
[0027] 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.
[0028] Please see Figure 1-6 This utility model provides a silicon carbide abrasive screening device, including a housing 1, a feeding box 2 fixed on the top of the housing 1, a motor 3 installed on the front and back of the housing 1, an inner discharge port 4 opened in the middle of the front of the housing 1, outer discharge ports 5 opened on both sides of the front of the housing 1, a side discharge port 6 opened on the side of the housing 1, a material feeding screen plate 7 rotating through a pivot pin on the front and rear inner walls of the housing 1, a material feeding passage 8 opened on the surface of the material feeding screen plate 7, a material feeding screen 9 installed inside the material feeding passage 8, and a base platform 10 fixed on the inner bottom surface of the housing 1.
[0029] A lower screen plate 13 is fixed on the base platform 10, and an upper screen plate 11 is fixed on the lower screen plate 13. The top of the upper screen plate 11 is fixedly connected to the inner wall of the feeding box 2. An upper opening 12 is opened on the surface of the upper screen plate 11, and a lower opening 14 is opened on the surface of the lower screen plate 13. The gap between the two lower screen plates 13 forms a material drop chute 15. An upper screen 16 is installed inside the upper opening 12, and a lower screen 17 is installed inside the lower opening 14. An inner inclined surface 18 is opened in the middle of the upper surface of the base platform 10, and outer inclined surfaces 19 are opened on both sides of the upper surface of the base platform 10. A crank 20 is fixed to the output end of the motor 3. A transition block 21 is fixed to the outer surface of the feeding screen plate 7. A push-pull rod 22 is rotatably connected between the crank 20 and the transition block 21 through a pivot pin.
[0030] Furthermore, the curved disk 20 consists of two sets of disks with different diameters, and the larger diameter disk and the smaller diameter disk have different centers. The push-pull rod 22 is rotatably connected to the non-center of the curved disk 20 through a pivot pin. The curved disk 20 is rotatably connected to the feeding screen plate 7 through the adapter block 21 and the push-pull rod 22. When the curved disk 20 pulls the feeding screen plate 7 back and forth through the push-pull rod 22, it can drive the silicon carbide abrasive on the feeding screen 9 to also swing back and forth, so as to disperse the silicon carbide abrasive.
[0031] Furthermore, the feeding screen 7 is located directly below the feeding box 2. The feeding screen 7 is rotatably connected to the housing 1 via a pivot pin, and the front and rear sides of the feeding screen 7 are slidably connected to the front and rear inner walls of the housing 1. This facilitates the pouring of silicon carbide abrasive onto the inclined surface of the feeding screen 9 through the feeding box 2, so that the feeding screen 9 can subsequently disperse and screen the silicon carbide abrasive.
[0032] Furthermore, the inner inclined surface 18 is located between the two lower screen plates 13 and is connected to the inner discharge port 4. The outer inclined surface 19 is located on the inner side of the lower screen plate 13 and is connected to the outer discharge port 5. This allows the larger silicon carbide abrasive particles after being screened by the upper screen 16 to be collected through the inner inclined surface 18 and discharged through the inner discharge port 4. The smaller silicon carbide abrasive particles after being screened by the upper screen 16 and the lower screen 17 are also collected through the outer discharge port 5.
[0033] Furthermore, the upper screen plate 11 is obtuse-angled, and the two sets of upper screen plates 11 are located obliquely below the feeding screen plate 7. The lower screen plate 13 is trapezoidal, and the lower screen plate 13 is located directly below the upper screen plate 11. After being screened by the upper screen 16, the smaller silicon carbide abrasive particles fall onto the lower screen 17, and the larger silicon carbide abrasive particles slide down onto the inner inclined surface 18 after passing through the discharge chute 15. After being screened by the lower screen 17, the smaller silicon carbide abrasive particles fall onto the outer inclined surface 19, and the larger silicon carbide abrasive particles slide down along the surface of the lower screen 17 to the side discharge port 6.
[0034] Furthermore, the side discharge port 6 is located on the outside of the upper screen plate 11 and is connected to the bottom of the inclined surface of the upper screen plate 11, so that the larger silicon carbide abrasive after being screened by the lower screen 17 can slide down to the side discharge port 6 and be discharged from the side discharge port 6.
[0035] Furthermore, the top of the feeding screen plate 7 is provided with an inwardly inclined obtuse-angled baffle. The feeding screen plate 7 is initially positioned at an incline. When the feeding screen plate 7 swings back and forth in the left and right directions, the obtuse-angled baffle can prevent silicon carbide abrasive from spilling onto the outside of the feeding screen plate 7.
[0036] Furthermore, the front and rear sides of the upper screen plate 11 and the lower screen plate 13 are fixedly connected to the front and rear inner walls of the housing 1. By fixing the front and rear sides of the upper screen plate 11 and the lower screen plate 13 to the front and rear inner walls of the housing 1, there is no gap between the upper screen plate 11 and the lower screen plate 13 and the front and rear inner walls of the housing 1, so that the silicon carbide abrasive can fall entirely onto the upper screen 16 and the lower screen 17.
[0037] In use, first pour the silicon carbide abrasive into the left-leaning feed screen 9 through the feed box 2, so that the silicon carbide abrasive falls on the inclined surface on the left side of the feed screen 9. At the same time, start the motor 3 to drive the crank disk 20 to rotate clockwise, as shown in the instruction manual. Figure 2As shown, when the smaller diameter side of the crank disk 20 rotates clockwise from left to right, the push-pull rod 22 and the adapter block 21 can drive the material feeding screen plate 7 to swing to the right. Similarly, when the smaller diameter side of the crank disk 20 rotates clockwise from right to left, the push-pull rod 22 and the adapter block 21 can pull the material feeding screen plate 7 to swing to the left. Therefore, by supporting the rotation of the lower part of the material feeding screen plate 7 with the pivot pin, the material feeding screen plate 7 can swing back and forth in the left and right directions. During the swing of the material feeding screen plate 7 to the right, the silicon carbide abrasive on the left inclined surface of the material feeding screen 9 can be splashed and dispersed to the right inclined surface. During the swing of the material feeding screen plate 7 to the left, the silicon carbide abrasive on the right inclined surface of the material feeding screen 9 can be splashed and dispersed to the left inclined surface. Therefore, the silicon carbide abrasive on the left and right sides can be splashed and dispersed back and forth by the material feeding screen 9, so as to facilitate the feeding process. The screen 9 can uniformly screen the dispersed silicon carbide abrasive. After being screened by the screen 9, a portion of the silicon carbide abrasive falls onto the inner inclined surface 18 and is discharged from the inner outlet 4. During the tilting and swinging process of the screen 9, another portion of the silicon carbide abrasive falls onto the upper screen 16. After being screened by the upper screen 16, the smaller silicon carbide abrasive falls onto the lower screen 17, while the larger silicon carbide abrasive slides down the drop chute 15 onto the inner inclined surface 18 and is discharged from the inner outlet 4. After being screened by the lower screen 17, the smaller silicon carbide abrasive falls onto the outer inclined surface 19 and is discharged from the outer outlet 5. After being screened by the lower screen 17, the larger silicon carbide abrasive slides down to the side outlet 6 and is discharged from the side outlet 6. Thus, the silicon carbide abrasive can be screened in multiple stages, improving the screening effect.
[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 silicon carbide abrasive screening device, comprising a casing (1), characterized in that: A feeding box (2) is fixed on the top of the machine box (1). A motor (3) is installed on the front and back of the machine box (1). An inner discharge port (4) is opened in the middle of the front of the machine box (1). Outer discharge ports (5) are opened on both sides of the front of the machine box (1). A side discharge port (6) is opened on the side of the machine box (1). A material feeding screen plate (7) is rotated on the front and rear inner walls of the machine box (1) by a pivot pin. A material feeding passage (8) is opened on the surface of the material feeding screen plate (7). A material feeding screen (9) is installed inside the material feeding passage (8). A base platform (10) is fixed on the bottom surface of the machine box (1). A lower screen plate (13) is fixed on the base (10), and an upper screen plate (11) is fixed on the lower screen plate (13). The top of the upper screen plate (11) is fixedly connected to the inner wall of the feeding box (2). An upper opening (12) is provided on the surface of the upper screen plate (11), and a lower opening (14) is provided on the surface of the lower screen plate (13). The gap between the two lower screen plates (13) forms a material drop chute (15). An upper screen is installed inside the upper opening (12). (16) A lower screen (17) is installed inside the lower opening (14). An inner inclined surface (18) is provided in the middle of the upper surface of the base (10). An outer inclined surface (19) is provided on both sides of the upper surface of the base (10). A crank plate (20) is fixed at the output end of the motor (3). A transition block (21) is fixed on the outer surface of the feeding screen plate (7). A push-pull rod (22) is rotated between the crank plate (20) and the transition block (21) through a pivot pin.
2. The silicon carbide abrasive screening device according to claim 1, characterized in that: The curved disk (20) consists of two sets of disks with different diameters, and the larger diameter disk and the smaller diameter disk have different centers. The push-pull rod (22) is rotatably connected to the non-center of the curved disk (20) through a pivot pin. The curved disk (20) is rotatably connected to the feeding screen plate (7) through the adapter block (21) and the push-pull rod (22).
3. The silicon carbide abrasive screening device according to claim 1, characterized in that: The feeding screen plate (7) is located directly below the feeding box (2). The feeding screen plate (7) is rotatably connected to the machine box (1) through a pivot pin, and the front and rear sides of the feeding screen plate (7) are slidably connected to the front and rear inner walls of the machine box (1).
4. The silicon carbide abrasive screening device according to claim 1, characterized in that: The inner inclined surface (18) is located between the two lower screen plates (13) and is connected to the inner discharge port (4). The outer inclined surface (19) is located on the inner side of the lower screen plate (13) and is connected to the outer discharge port (5).
5. The silicon carbide abrasive screening device according to claim 1, characterized in that: The upper screen plate (11) is obtuse-angled, and the two sets of upper screen plates (11) are located diagonally below the feeding screen plate (7). The lower screen plate (13) is trapezoidal, and the lower screen plate (13) is located directly below the upper screen plate (11).
6. The silicon carbide abrasive screening device according to claim 1, characterized in that: The side discharge port (6) is located on the outside of the upper screen plate (11) and is connected to the bottom end of the inclined surface of the upper screen plate (11).
7. The silicon carbide abrasive screening device according to claim 1, characterized in that: The top of the feeding screen plate (7) is provided with an inwardly inclined obtuse-angled baffle, and the feeding screen plate (7) is initially positioned at an incline.
8. The silicon carbide abrasive screening device according to claim 1, characterized in that: The front and rear sides of the upper sieve plate (11) and the lower sieve plate (13) are fixedly connected to the front and rear inner walls of the casing (1).