Thermal-oxidation-resistant neodymium iron boron composite magnetic powder production device

Abstract

The utility model relates to the technical field of neodymium-iron-boron magnetic powder production, and provides a thermal-oxidation-resistant neodymium-iron-boron composite magnetic powder production device which comprises a smashing box, a protective shell is fixedly connected to the middle of the left side of the smashing box, a fixing plate is fixedly connected to the right end of the front side of the smashing box, and a first motor is fixedly connected to the middle of the top end of the fixing plate. The driving end of the first motor is fixedly connected with a first driving wheel, the first driving wheel is connected with a first driven wheel through a first belt, and the middle of the inner wall of the first driven wheel is fixedly connected with a first transmission column. According to the magnetic powder smashing device, through cooperation of the first motor, the first driving wheel, the first belt, the first driven wheel, the first transmission column, the first gear, the second gear, the second transmission column and the smashing roller, the effect of evenly smashing raw materials is achieved, then it is ensured that the raw materials are evenly smashed into needed particle sizes, and therefore the uniformity and stability of magnetic powder are improved; and the produced magnetic powder is ensured to have consistent chemical components and magnetic properties, so that the quality of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of NdFeB magnetic powder production, in particular to a device for producing thermal oxidation resistant NdFeB composite magnetic powder. Background Art

[0002] NdFeB magnets are tetragonal crystals formed by neodymium, iron and boron. This type of magnet is the second most powerful permanent magnet after the absolute zero holmium magnet and is also the most commonly used rare earth magnet. NdFeB magnets are widely used in electronic products such as hard disks, mobile phones, headphones and battery-powered tools.

[0003] After searching, the existing patent (Announcement No.: CN220244278U) discloses a magnetic powder dumping device for the production of NdFeB magnets, including a feeding mechanism, a dumping mechanism and a conveying mechanism. The feeding mechanism and the dumping mechanism are arranged on the conveying mechanism. The dumping mechanism includes an output motor, a magnetic powder bin, an inlet, an inlet valve, a stirring chamber, a rotating shaft, a stirring rod, a discharge port and a discharge valve. A stirring chamber is provided inside the magnetic powder bin. The output shaft of the output motor passes through the top of the magnetic powder bin and extends into the inside of the stirring chamber. A rotating shaft is provided inside the stirring chamber. A stirring rod is fixedly connected to the outer wall of the rotating shaft. A discharge port is provided at the bottom of the stirring chamber. A discharge valve is provided at the discharge port, and a feed valve is provided at the inlet. When the dumping mechanism is displaced, the inlet valve and the discharge valve are both in a closed state to prevent the magnetic powder from being affected by the outside during transportation, resulting in leakage of the magnetic powder. The stirring rod in the dumping mechanism can stir the magnetic powder to prevent the magnetic powder from being deposited for a long time and clogging the magnetic powder bin.

[0004] However, in the above scheme, it is difficult to effectively crush the raw materials during the production process, which may lead to uneven particle size of the raw material powder and a mixture of large and small particles, affecting the uniformity and stability of the product.

[0005] In view of this, the utility model proposes a production device for thermal oxidation resistant NdFeB composite magnetic powder. Utility Model Content

[0006] The utility model provides a production device for thermal oxidation resistant NdFeB composite magnetic powder, which solves the problem in the related technology that it is difficult to effectively crush raw materials during the production process.

[0007] The technical solution of the utility model is as follows: A device for producing heat-oxidation-resistant NdFeB composite magnetic powder, comprising a crushing box, a protective shell fixedly connected to the middle part of the left side of the crushing box, a fixed plate fixedly connected to the right end of the front side of the crushing box, a motor fixedly connected to the middle part of the top of the fixed plate, a driving wheel fixedly connected to the driving end of the motor, the driving wheel is connected to the driven wheel through a belt, a transmission column fixedly connected to the middle part of the inner wall of the driven wheel, the transmission column penetrates the inner wall of the crushing box and extends to the inside of the protective shell, a gear is fixedly connected to the left end of the outer side of the transmission column, a gear is meshingly connected to the front side of the gear, a transmission column is fixedly connected to the inner wall of the gear, a crushing roller is fixedly connected to the outer sides of the transmission column and the transmission column.

[0008] Preferably, the left side end of the second transmission column is rotatably connected to the left end of the inner wall of the protective shell, and the right side end of the second transmission column is rotatably connected to the right end of the inner wall of the crushing box.

[0009] Preferably, a feed hopper is fixedly installed in the middle of the top end of the crushing box, and a discharge hopper is fixedly installed in the middle of the bottom end of the crushing box.

[0010] Preferably, a feeding box is fixedly connected to the bottom end of the discharge hopper, a discharge port is provided at the bottom end of the inner wall of the feeding box, and a support plate is fixedly connected to the right end of the front side of the feeding box.

[0011] Preferably, the top end of the support plate is fixedly connected to a second motor, the driving end of the second motor is fixedly connected to a second driving wheel, and the second driving wheel is connected to a second driven wheel via a second belt.

[0012] Preferably, a transmission rod is fixedly connected to the middle portion of the inner wall of the second driven wheel, and a sleeve rod is fixedly connected to the outer side of the transmission rod.

[0013] Preferably, evenly distributed partition plates are fixedly connected to the outer side of the sleeve rod, and the partition plates are in contact with the inner wall of the feeding box.

[0014] Preferably, the bottom end of the crushing box is fixedly connected with evenly distributed supporting legs.

[0015] The working principle and beneficial effects of the utility model are:

[0016] In the utility model, the coordination of a motor, a driving wheel, a belt, a driven wheel, a transmission column, a gear, a gear, a transmission column and a crushing roller achieves a uniform crushing effect on raw materials, thereby ensuring that the raw materials are uniformly crushed into the required particle size, thereby improving the uniformity and stability of the magnetic powder, which is conducive to ensuring that the produced magnetic powder has consistent chemical composition and magnetic properties, thereby improving the quality of the product, and at the same time, by uniformly crushing the raw materials, the production cycle can be shortened to a certain extent and the production efficiency can be improved.

[0017] In the utility model, through the cooperation of motor two, driving wheel two, belt two, driven wheel two, transmission rod, sleeve rod and partition plate, the quantitative discharging effect of raw materials is achieved, thereby providing precise flow control, which can maximize the use of raw materials, reduce waste, improve production cost-effectiveness, avoid excessive or insufficient discharging, and at the same time reduce errors in human operation, avoid production quality fluctuations caused by human factors, and improve production controllability and consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is an isometric stereoscopic schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the crushing box of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the crushing roller of the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the feeding box of the utility model;

[0023] Figure 5 It is a schematic diagram of the internal structure of the feeding box of the utility model.

[0024] In the figure: 1. crushing box; 2. protective shell; 3. feed hopper; 4. fixed plate; 5. motor 1; 6. driving wheel 1; 7. belt 1; 8. driven wheel 1; 9. transmission column 1; 10. gear 1; 11. gear 2; 12. transmission column 2; 13. crushing roller; 14. discharge hopper; 15. feed box; 16. support plate; 17. motor 2; 18. driving wheel 2; 19. belt 2; 20. driven wheel 2; 21. transmission rod; 22. socket rod; 23. partition plate; 24. discharge port; 25. support leg. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0026] The preferred embodiment of the thermal oxidation resistant NdFeB composite magnetic powder production device provided by the utility model is as follows Figures 1 to 5As shown: a production device of heat-oxidation-resistant NdFeB composite magnetic powder, including a crushing box 1, a protective shell 2 is fixedly connected to the middle of the left side of the crushing box 1, and the crushing box 1 has a fixing effect on the protective shell 2, and a fixing plate 4 is fixedly connected to the right end of the front side of the crushing box 1, and the crushing box 1 has a fixing effect on the fixing plate 4. A motor 5 is fixedly connected to the middle of the top of the fixing plate 4 in order to further improve the stability of the motor 5. The driving end of the motor 5 is fixedly connected to a driving wheel 6, and the motor 5 can drive the driving wheel 6 to rotate. The driving wheel 6 is connected to the driven wheel 8 through a belt 7. During the rotation process, the driving wheel 6 drives the driven wheel 8 to rotate through the belt 7. A transmission column 9 is fixedly connected to the middle of the inner wall of the driven wheel 8, which further drives the transmission column 9 to rotate. The transmission column 9 runs through the crushing box. 1 and extends to the inside of the protective shell 2. The left end of the outer side of the transmission column 9 is fixedly connected with a gear 10, which is driven to rotate by the rotation of the transmission column 9. The front side of the gear 10 is meshingly connected with a gear 2 11. The gear 10 drives the gear 2 11 to rotate through its own meshing transmission during the rotation process, and the rotation directions of the gear 10 and the gear 2 11 are opposite. The inner wall of the gear 2 11 is fixedly connected with a transmission column 2 12, which is driven to rotate by the rotation of the gear 2 11. The outer sides of the transmission column 19 and the transmission column 2 12 are fixedly connected with crushing rollers 13, so that the two crushing rollers 13 rotate in opposite directions, so as to achieve a uniform crushing effect on the raw materials, thereby ensuring that the raw materials are evenly crushed into the required particle size, thereby improving the uniformity and stability of the magnetic powder.

[0027] In this embodiment, the left end of the transmission column 12 is rotatably connected to the left end of the inner wall of the protective shell 2, and the right end of the transmission column 12 is rotatably connected to the right end of the inner wall of the crushing box 1, in order to further improve the stability of the transmission column 12 during rotation. Example 2

[0028] On the basis of Example 1, a preferred embodiment of the thermal oxidation resistant NdFeB composite magnetic powder production device provided by the utility model is as follows Figures 1 to 5 As shown: a feed hopper 3 is fixedly installed in the middle of the top of the crushing box 1, and the crushing box 1 has a fixing effect on the feed hopper 3. A discharge hopper 14 is fixedly installed in the middle of the bottom of the crushing box 1, and the crushing box 1 has a fixing effect on the discharge hopper 14.

[0029] In this embodiment, the bottom end of the discharge hopper 14 is fixedly connected to the feeding box 15, and the discharge hopper 14 fixes the feeding box 15. A discharge port 24 is opened at the bottom end of the inner wall of the feeding box 15. The right end of the front side of the feeding box 15 is fixedly connected to the support plate 16, and the feeding box 15 fixes the support plate 16.

[0030] In this embodiment, a motor 2 17 is fixedly connected to the top of the support plate 16 in order to further improve the stability of the motor 2 17. A driving wheel 2 18 is fixedly connected to the driving end of the motor 2 17. The motor 2 17 can drive the driving wheel 2 18 to rotate. The driving wheel 2 18 is connected to the driven wheel 2 20 through a belt 2 19. During the rotation process, the driving wheel 2 18 drives the driven wheel 20 to rotate through the belt 2 19.

[0031] In this embodiment, a transmission rod 21 is fixedly connected to the middle of the inner wall of the driven wheel 20, and the transmission rod 21 is driven to rotate by the rotation of the driven wheel 20. A sleeve rod 22 is fixedly connected to the outer side of the transmission rod 21, which further drives the sleeve rod 22 to rotate.

[0032] In this embodiment, evenly distributed partition plates 23 are fixedly connected to the outer side of the sleeve rod 22. The sleeve rod 22 rotates to drive multiple partition plates 23 to rotate. The partition plates 23 fit the inner wall of the feed box 15 so that the raw materials are scattered inside the feed box 15. The distance between two adjacent partition plates 23 is the same, so that the amount of raw materials received by two adjacent partition plates 23 is the same, and is transported to the discharge port 24 through rotation.

[0033] Furthermore, evenly distributed supporting legs 25 are fixedly connected to the bottom end of the crushing box 1 .

[0034] The working principle and use process of the utility model are as follows: first, the raw materials are added into the crushing box 1 through the feed hopper 3, and the motor 5 is started. The motor 5 drives the driving wheel 6 to rotate. The driving wheel 6 drives the driven wheel 8 to rotate through the belt 7 during the rotation process, and further drives the transmission column 9 to rotate. The transmission column 9 rotates and then drives the gear 10 to rotate. The gear 10 drives the gear 2 11 to rotate through its own meshing transmission during the rotation process, and the rotation directions of the gear 10 and the gear 2 11 are opposite. The gear 2 11 rotates and then drives the transmission column 2 12 to rotate, so that the two crushing rollers 13 rotate in opposite directions, so as to achieve the uniform crushing effect of the raw materials, thereby ensuring that the raw materials are evenly crushed into the required particle size, thereby improving the uniformity and stability of the magnetic powder. After crushing, it enters the feed box 15 through the discharge hopper 14 and is received by two adjacent partition plates 23. The motor 2 17 is started, and the motor 2 17 drives the driving wheel 2 18 to rotate. During the rotation, the driving wheel 2 18 drives the driven wheel 20 to rotate through the belt 2 19, and further drives the transmission rod 21 to rotate. The rotation of the transmission rod 21 drives the sleeve rod 22 to rotate, and further drives the multiple partition plates 23 to rotate. The distance between the two adjacent partition plates 23 is the same, so that the amount of raw materials received between the two adjacent partition plates 23 is the same, and is transported to the discharge port 24 through rotation, so as to achieve the quantitative discharge effect of the raw materials, and then provide precise flow control, which can maximize the use of raw materials, reduce waste, improve production cost-effectiveness, and avoid excessive or insufficient discharge.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for producing thermal oxidation resistant NdFeB composite magnetic powder, comprising a crushing box (1), characterized in that: The left middle part of the crushing box (1) is fixedly connected to a protective shell (2); the right end of the front side of the crushing box (1) is fixedly connected to a fixing plate (4); the middle part of the top of the fixing plate (4) is fixedly connected to a motor 1 (5); the driving end of the motor 1 (5) is fixedly connected to a driving wheel 1 (6); the driving wheel 1 (6) is connected to a driven wheel 1 (8) through a belt 1 (7); the middle part of the inner wall of the driven wheel 1 (8) is fixedly connected to a transmission column 1 (9); the transmission column 1 (9) penetrates the inner wall of the crushing box (1) and extends into the protective shell (2); the left end of the outer side of the transmission column 1 (9) is fixedly connected to a gear 1 (10); the front side of the gear 1 (10) is meshedly connected to a gear 2 (11); the inner wall of the gear 2 (11) is fixedly connected to a transmission column 2 (12); the outer sides of the transmission column 1 (9) and the transmission column 2 (12) are both fixedly connected to crushing rollers (13).

2. The thermal oxidation resistant NdFeB composite magnetic powder production device according to claim 1, characterized in that: The left end of the second transmission column (12) is rotatably connected to the left end of the inner wall of the protective shell (2), and the right end of the second transmission column (12) is rotatably connected to the right end of the inner wall of the crushing box (1).

3. The thermal oxidation resistant NdFeB composite magnetic powder production device according to claim 1, characterized in that: A feed hopper (3) is fixedly mounted in the middle of the top end of the crushing box (1), and a discharge hopper (14) is fixedly mounted in the middle of the bottom end of the crushing box (1).

4. The thermal oxidation resistant NdFeB composite magnetic powder production device according to claim 3, characterized in that: The bottom end of the discharge hopper (14) is fixedly connected to a feeding box (15), a discharge port (24) is provided at the bottom end of the inner wall of the feeding box (15), and a support plate (16) is fixedly connected to the front right end of the feeding box (15).

5. The device for producing thermal oxidation resistant NdFeB composite magnetic powder according to claim 4, characterized in that: The top end of the support plate (16) is fixedly connected to a second motor (17), the driving end of the second motor (17) is fixedly connected to a second driving wheel (18), and the second driving wheel (18) is connected to a second driven wheel (20) via a second belt (19).

6. The device for producing thermal oxidation resistant NdFeB composite magnetic powder according to claim 5, characterized in that: A transmission rod (21) is fixedly connected to the middle of the inner wall of the second driven wheel (20), and a sleeve rod (22) is fixedly connected to the outer side of the transmission rod (21).

7. The device for producing thermal oxidation resistant NdFeB composite magnetic powder according to claim 6, characterized in that: Evenly distributed partition plates (23) are fixedly connected to the outside of the sleeve rod (22), and the partition plates (23) are in contact with the inner wall of the feeding box (15).

8. The thermal oxidation resistant NdFeB composite magnetic powder production device according to claim 1, characterized in that: The bottom end of the crushing box (1) is fixedly connected with evenly distributed supporting legs (25).

Images