Boron carbide fine powder grinding machine

Abstract

The utility model discloses a boron carbide fine powder grinding machine, which belongs to the field of boron carbide processing equipment and comprises a workbench, a through groove is arranged on the workbench, a cylinder penetrates through the through groove, a rotating component is arranged between the cylinder and the workbench, a first motor is mounted in the middle of the top end of the cylinder, and a second motor is mounted in the middle of the top end of the cylinder. A main grinding cylinder located in the cylinder body is installed at the output end of the first motor through a rotating shaft, and shafts at the two ends of the main grinding cylinder are rotationally connected to the top and the bottom of the inner wall of the cylinder body through bearings correspondingly. During grinding, boron carbide between the main grinding cylinder and the auxiliary grinding cylinder can be quickly ground by the aid of reverse rotation of the main grinding cylinder and the auxiliary grinding cylinder, and boron carbide between the inner wall of the cylinder and the auxiliary grinding cylinder can be quickly ground by the aid of reverse rotation of the cylinder and the auxiliary grinding cylinder. And the main grinding cylinder, the auxiliary grinding cylinder and the cylinder body are rotated reversely in sequence, so that the grinding efficiency can be effectively improved compared with the traditional single rotating grinding direction.

Description

Technical Field

[0001] The utility model relates to the technical field of boron carbide processing equipment, and more specifically, to a boron carbide fine powder grinder. Background Technique

[0002] Boron carbide has a series of excellent physical and chemical properties such as low density, super hardness, high melting point, high modulus, good neutron absorption cross-section, semiconductor characteristics, strong corrosion resistance and good oxidation resistance. It has a very wide range of applications in bulletproof ceramic materials, aerospace industry, nuclear industry, durable protective materials, grinding materials, etc. After the existing boron carbide is produced, the particles are relatively large and it is difficult to meet the production and use requirements of some applications. Therefore, it is necessary to grind it into fine powder to meet the use needs.

[0003] Currently, boron carbide is mostly ground by a grinding device. During grinding, the boron carbide to be ground and a grinding medium (usually hard small beads) are added into a grinding cylinder, and then the internal stirring of the grinding cylinder is used to complete the fine powder grinding. However, the rotation direction of the boron carbide grinding inside the grinding cylinder is single, resulting in a long grinding time and low grinding efficiency. Content of the Utility Model

[0004] 1. Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a boron carbide fine powder grinder, which uses a main grinding cylinder, a secondary grinding cylinder and a cylinder body to form three layers of grinding inside and outside, and the grinding directions of the three layers are opposite in sequence. Compared with the traditional single rotation grinding direction, it can effectively improve the grinding efficiency.

[0006] 2. Technical Solutions

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A boron carbide fine powder grinder includes:

[0009] A workbench, on which a through groove is opened, a cylinder body penetrates through the through groove, and a rotating assembly is provided between the cylinder body and the workbench;

[0010] A first motor is installed at the middle of the top end of the cylinder body. The output end of the first motor is installed with a main grinding cylinder inside the cylinder body through a rotating shaft. The shafts at both ends of the main grinding cylinder are respectively rotationally connected to the top and bottom inner walls of the cylinder body through bearings. And the shaft at the top of the main grinding cylinder penetrates to the outside of the cylinder body. The driving shaft at the bottom of the first motor is connected to the shaft at the top of the main grinding cylinder through a coupling. A second gear is fixedly installed on the shaft of the main grinding cylinder located inside the cylinder body. A plurality of auxiliary grinding cylinders are arranged in a circular array inside the cylinder body and around the main grinding cylinder. A plurality of grinding balls are installed on the outer walls of the main grinding cylinder and the auxiliary grinding cylinders. A bearing seat is connected between the bottom end of the auxiliary grinding cylinder and the bottom inside the cylinder body. And a third gear is fixed to the upper end of the outer wall of the auxiliary grinding cylinder. The third gear is meshed with the second gear.

[0011] Preferably, the rotating assembly includes:

[0012] An annular sliding groove, which is opened on the inner wall of the through groove;

[0013] An annular sliding strip, which is fixed to the outer wall of the cylinder body, and the annular sliding strip is slidably matched with the annular sliding groove.

[0014] Preferably, the rotating assembly further includes:

[0015] A motor frame, which is fixed to the lower end surface of the workbench;

[0016] A second motor, which is installed inside the motor frame, and the output end of the second motor is installed with a first gear above the workbench through a rotating shaft;

[0017] A toothed ring, which is fixed to the outside of the cylinder body, and the toothed ring is located above the annular sliding strip. The toothed ring is meshed with the first gear.

[0018] Preferably, a gear cover is arranged outside the first gear. Sponge layers soaked with lubricating oil are arranged on the upper and lower surfaces inside the gear cover.

[0019] Preferably, support legs are connected to the bottom corners of the workbench. The bottom ends of the support legs are fixed with foot pads, and mounting holes are opened in the foot pads.

[0020] Preferably, a feeding hopper is installed at the top end of the cylinder body. A discharging pipe is connected to the bottom end of the cylinder body, and a valve is installed on the discharging pipe.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the advantages of the present utility model are as follows:

[0023] In this solution, by setting up the first motor, the main grinding cylinder, the auxiliary grinding cylinder, etc., when grinding, the output end of the first motor drives the main grinding cylinder to rotate, and then the second gear fixed on the main grinding cylinder can drive a plurality of third gears meshing with it to rotate, thereby driving a plurality of auxiliary grinding cylinders to rotate in reverse synchronously. The reverse rotation of the main grinding cylinder and the auxiliary grinding cylinder can achieve the rapid grinding of boron carbide between the main grinding cylinder and the auxiliary grinding cylinder. Secondly, when grinding, the output end of the second motor can be used to drive the first gear to rotate, which can drive the cylinder body provided with a toothed ring to rotate, and then use the opposite rotation of the cylinder body and the auxiliary grinding cylinder to grind the boron carbide between the inner wall of the cylinder body and the auxiliary grinding cylinder faster;

[0024] In short, using the main grinding cylinder, the auxiliary grinding cylinder and the cylinder body to form three layers of grinding inside and outside, and the grinding directions of the three layers are opposite in turn. Compared with the traditional single rotation grinding direction, the grinding efficiency can be effectively improved. Brief Description of the Drawings

[0025] Figure 1 is one of the overall structural schematic diagrams of the present utility model;

[0026] Figure 2 is the second of the overall structural schematic diagrams of the present utility model;

[0027] Figure 3 is the sectional structural schematic diagram of the present utility model;

[0028] Figure 4 is the structural schematic diagram of the connection between the main grinding cylinder and the auxiliary grinding cylinder of the present utility model;

[0029] Figure 5 is the three-dimensional structural schematic diagram of the workbench of the present utility model;

[0030] Figure 6 is the structural schematic diagram of the cylinder body of the present utility model.

[0031] Explanation of the reference numerals in the drawings:

[0032] 1. Workbench; 2. Cylinder body; 3. Feeding hopper; 4. First motor; 5. Support leg; 6. Toothed ring; 7. First gear; 8. Gear cover; 9. Foot pad; 10. Motor frame; 11. Second motor; 12. Discharge pipe; 13. Main grinding cylinder; 14. Auxiliary grinding cylinder; 15. Second gear; 16. Third gear; 17. Grinding ball; 18. Bearing seat; 19. Through groove; 20. Annular chute; 21. Annular slide bar. Detailed Embodiment

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] Figure 1 And Figure 2 are schematic diagrams of the overall structure of the present utility model. As shown in the figure, the boron carbide fine powder grinder includes a workbench 1. At the bottom corners of the workbench 1, support legs 5 are connected. At the bottom of the support legs 5, feet 9 are fixed. Installation holes are provided on the feet 9. By using the feet 9 to contact the ground, the stability of the placement of the grinder can be ensured. Among them, by passing expansion bolts through the installation holes, the feet 9 can be stably fixed, which can further ensure the stability of the grinder. A through groove 19 is provided on the workbench 1. A cylinder 2 passes through the through groove 19. A feeding hopper 3 is installed at the top of the cylinder 2. The boron carbide to be ground and the grinding medium can be added from the feeding hopper 3. A discharge pipe 12 is connected to the bottom of the cylinder 2. A valve is installed on the discharge pipe 12. After the boron carbide is ground well, it can be discharged from the discharge pipe 12 for collection. And a rotating assembly is provided between the cylinder 2 and the workbench 1. The rotating assembly is used to realize the rotation of the cylinder 2.

[0035] Refer to Figures 3 - 4 As shown, a first motor 4 is installed at the middle of the top of the cylinder 2. The output end of the first motor 4 is installed with a main grinding cylinder 13 inside the cylinder 2 through a rotating shaft. The shafts at both ends of the main grinding cylinder 13 are respectively rotatably connected to the top and bottom inner walls of the cylinder 2 through bearings. And the shaft at the top of the main grinding cylinder 13 penetrates to the outside of the cylinder 2. The driving shaft at the bottom of the first motor 4 is connected to the shaft at the top of the main grinding cylinder 13 through a coupling. A second gear 15 is fixedly installed on the shaft of the main grinding cylinder 13 located inside the cylinder 2. A plurality of auxiliary grinding cylinders 14 are arranged in a circular array around the main grinding cylinder 13 inside the cylinder 2. A plurality of grinding balls 17 are installed on the outer walls of the main grinding cylinder 13 and the auxiliary grinding cylinders 14. A bearing seat 18 is connected between the bottom of the auxiliary grinding cylinder 14 and the bottom inside the cylinder 2. And a third gear 16 is fixed to the upper end of the outer wall of the auxiliary grinding cylinder 14. The third gear 16 is meshed with the second gear 15.

[0036] Through the above technical solutions:

[0037] In specific use, abrasive media and boron carbide to be ground are added from the feeding hopper 3, and then the first motor 4 is started. The output end of the first motor 4 drives the main grinding cylinder 13 to rotate. At this time, the second gear 15 fixed on the main grinding cylinder 13 can drive a plurality of third gears 16 engaged with it to rotate, and then drive a plurality of sub-grinding cylinders 14 to rotate in reverse synchronously. By using the reverse rotation of the main grinding cylinder 13 and the sub-grinding cylinders 14 provided with grinding balls 17 in cooperation with the abrasive media, the grinding efficiency can be effectively improved.

[0038] Among them, in the specific embodiment of the present invention, referring to Figure 5 and Figure 6 as shown, the rotating assembly includes:

[0039] An annular chute 20 is opened on the inner wall of the through groove 19;

[0040] An annular slide bar 21 is fixed on the outer wall of the cylinder body 2, and the annular slide bar 21 is slidably fitted in the annular chute 20.

[0041] In the specific embodiment of the present invention, referring to Figure 1 and Figure 2 as shown, the rotating assembly further includes:

[0042] A motor frame 10 is fixed on the lower end surface of the workbench 1;

[0043] A second motor 11 is installed in the motor frame 10, and the output end of the second motor 11 is installed on the first gear 7 above the workbench 1 through a rotating shaft;

[0044] A toothed ring 6 is fixed outside the cylinder body 2, and the toothed ring 6 is located above the annular slide bar 21. The toothed ring 6 is meshed and connected to the first gear 7.

[0045] Through the above, when the first motor 4 is started for grinding, the second motor 11 in the motor frame 10 can also be started. The output end of the second motor 11 drives the first gear 7 to rotate, and then drives the cylinder body 2 provided with the toothed ring 6 to rotate. Among them, the rotation direction of the output end of the second motor 11 is the same as the rotation direction of the output end of the first motor 4, which makes the rotation direction of the cylinder body 2 opposite to the rotation direction of the sub-grinding cylinder 14. Therefore, the boron carbide between the cylinder body 2 and the sub-grinding cylinder 14 can be ground faster by using the opposite rotation of the cylinder body 2 and the sub-grinding cylinder 14, and the grinding efficiency can be improved.

[0046] To sum up, in the present invention, the main grinding cylinder 13, the sub-grinding cylinder 14 and the cylinder body 2 are used to form three layers of grinding inside and outside, and the grinding directions of the three layers are opposite in turn. Compared with the traditional single rotation grinding direction, the grinding efficiency can be effectively improved.

[0047] Among them, by using the sliding of the annular slider 21 in the annular chute 20, the stability can be improved when the cylinder body 2 rotates, and the up-and-down movement of the cylinder body 2 can be avoided.

[0048] Furthermore, referring to Figure 1 As shown, a gear cover 8 is provided outside the first gear 7, and sponge layers soaked with lubricating oil are provided on the upper and lower surfaces inside the gear cover 8.

[0049] Specifically, the gear cover 8 can effectively protect the first gear 7 and can also protect the staff to avoid the staff accidentally touching the first gear 7 and causing injury;

[0050] Among them, the sponge layer soaked with lubricating oil can supply oil to the first gear 7 and reduce the occurrence of rust on the first gear 7.

[0051] The above is only the preferred specific implementation manner of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A boron carbide fine powder grinder, characterized in that, Including: A workbench (1), a through groove (19) is formed in the workbench (1), a cylinder body (2) penetrates through the through groove (19), and a rotating assembly is arranged between the cylinder body (2) and the workbench (1); A first motor (4) is installed at the middle of the top end of the cylinder body (2), the output end of the first motor (4) is installed with a main grinding cylinder (13) inside the cylinder body (2) through a rotating shaft, the shafts at both ends of the main grinding cylinder (13) are respectively rotatably connected to the top and bottom inner walls of the cylinder body (2) through bearings, and the shaft at the top of the main grinding cylinder (13) penetrates to the outside of the cylinder body (2), the driving shaft at the bottom of the first motor (4) is connected to the shaft at the top of the main grinding cylinder (13) through a coupling, a second gear (15) is fixedly installed on the shaft of the main grinding cylinder (13) located inside the cylinder body (2), a plurality of auxiliary grinding cylinders (14) are arranged in an annular array inside the cylinder body (2) and around the main grinding cylinder (13), a plurality of grinding balls (17) are installed on the outer walls of the main grinding cylinder (13) and the auxiliary grinding cylinders (14), a bearing seat (18) is connected between the bottom end of the auxiliary grinding cylinder (14) and the inner bottom of the cylinder body (2), and a third gear (16) is fixed to the upper end of the outer wall of the auxiliary grinding cylinder (14), and the third gear (16) is meshed with the second gear (15).

2. The boron carbide fine powder grinder according to claim 1, wherein: The rotating assembly includes: An annular sliding groove (20), which is formed in the inner wall of the through groove (19); An annular sliding strip (21), which is fixed to the outer wall of the cylinder body (2), and the annular sliding strip (21) is slidably matched with the annular sliding groove (20).

3. A boron carbide fine powder grinder according to claim 2, characterized in that: The rotating assembly further includes: A motor frame (10), which is fixed to the lower end surface of the workbench (1); A second motor (11), which is installed in the motor frame (10), and the output end of the second motor (11) is installed with a first gear (7) above the workbench (1) through a rotating shaft; A toothed ring (6), which is fixed to the outside of the cylinder body (2), and the toothed ring (6) is located above the annular sliding strip (21), and the toothed ring (6) is meshed with the first gear (7).

4. The boron carbide fine powder grinder according to claim 3, characterized in that: A gear cover (8) is arranged outside the first gear (7), and sponge layers soaked with lubricating oil are arranged on the upper and lower surfaces inside the gear cover (8).

5. The boron carbide fine powder grinder according to claim 1, characterized in that: Support legs (5) are connected to the bottom corners of the workbench (1), a foot pad (9) is fixed to the bottom end of the support legs (5), and mounting holes are formed in the foot pad (9).

6. The boron carbide fine powder grinder according to claim 1, wherein: A feeding hopper (3) is installed at the top end of the cylinder body (2), a discharge pipe (12) is connected to the bottom end of the cylinder body (2), and a valve is installed on the discharge pipe (12).

Images