Rare earth magnetic powder polishing device
By introducing a sieving component and a shaking component into the rare earth magnetic powder grinding device, the problem of inconsistent grinding effect caused by uneven particle size was solved, and more efficient rare earth magnetic powder grinding was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI JIANGTUNGSTEN RARE METAL NEW MATERIALS CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-06-05
AI Technical Summary
In existing rare earth magnetic powder grinding devices, the uneven size of rare earth magnetic powder particles leads to inconsistent grinding effects and reduces grinding efficiency.
The device employs a screening assembly, including a filter screen, a pusher block, and a shaking assembly. The pusher block is driven by a motor to move the filter screen up and down, and the shaking assembly increases the shaking amplitude, thereby achieving the screening of rare earth magnetic powder and the removal of impurities.
It improves the grinding efficiency of rare earth magnetic powder, ensures particle uniformity, and enhances the grinding effect.
Smart Images

Figure CN224321559U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rare earth magnetic powder grinding technology, specifically a rare earth magnetic powder grinding device. Background Technology
[0002] Rare earth magnetic powder grinding equipment is a specialized device for grinding rare earth magnetic powder or similar materials. Although a precise and widely accepted definition cannot be found, based on the basic principles of magnetic grinding technology and the general structure of grinding equipment, it can be roughly described as a device that utilizes the magnetic field effect, combined with traditional grinding techniques, to perform precision finishing on rare earth magnetic powder or magnetic materials containing rare earth elements.
[0003] In existing rare earth magnetic powder grinding equipment, there are usually grinding jars, grinding rollers, motors and support frames. The grinding jars are mounted on the support frames and the grinding rollers are set inside the grinding jars. The grinding rollers are driven by the motor to rotate inside the grinding jars to grind the rare earth magnetic powders. However, in the use of existing equipment, the rare earth magnetic powders are directly introduced into the grinding jars. During the grinding process, the rare earth magnetic powders may have inconsistent grinding effects due to uneven particle size, which reduces the grinding efficiency. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides a rare earth magnetic powder grinding device, which effectively solves the problem that in the process of using existing rare earth magnetic powder grinding devices, rare earth magnetic powder is directly introduced into the grinding tank, and the grinding effect may be inconsistent due to uneven particle size, thus reducing grinding efficiency.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a rare earth magnetic powder grinding device, comprising a grinding body, a fixing frame provided on the grinding body, and a sieving component provided inside the fixing frame;
[0006] The screening assembly includes a filter screen, a motor, a drive rod, a push block, and multiple vibration groups. The motor is mounted on one side of the fixed frame, and its output end is fixedly connected to one end of the drive rod. The end of the drive rod away from the motor is fixedly connected to one side of the push block. The cross-section of the push block is set to a flat ellipse shape, and one side of the push block is attached to the bottom of the filter screen. Multiple vibration groups are set on the outer wall of the filter screen, and the filter screen is connected to the inner wall of the fixed frame through the multiple vibration groups.
[0007] Preferably, the grinding body includes a grinding jar, a grinding roller, a support frame, and a drive unit. The grinding jar is mounted on the support frame, and a plurality of discharge holes are provided on one side of the grinding jar. The grinding roller is installed inside the grinding jar, and the output end of the drive unit is connected to one end of the grinding roller.
[0008] Preferably, the drive assembly includes a second motor, a support plate, a first drive disk, and a second drive disk. The support plate is fixedly installed inside the support frame, the second motor is fixedly installed on the support plate, the output end of the second motor is fixedly connected to one side of the first drive disk, the first drive disk and the second drive disk are connected by a belt, and one end of the grinding roller is provided with a connecting rod, which is fixedly connected to one side of the second drive disk through the connecting rod.
[0009] Preferably, a guide plate is fixedly installed inside the fixed frame. The guide plate is inclined, and a connecting frame is fixedly connected to one end of the guide plate. The connecting frame is in communication with the grinding tank.
[0010] Preferably, the shaking assembly includes a shaking block, a guide post, and a spring. One side of the shaking block is fixedly connected to one side of the filter screen. The shaking block is movably disposed in a movable groove provided on the inner side wall of the fixed frame. The opposite ends of the guide post are fixedly connected to the opposite inner side wall of the movable groove. The guide post passes through the shaking block. Two springs are provided. The two springs are fixedly connected to the opposite side of the shaking block, and the ends of the two springs away from the shaking block are fixedly connected to the opposite inner side wall of the movable groove.
[0011] Preferably, the bottom of the support frame is equipped with multiple casters.
[0012] Preferably, a discharge frame is provided on one side of the fixed frame, and an installation plate is fixedly connected to the side of the fixed frame near the discharge frame, and a motor is fixedly installed on the installation plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] By setting up a filter screen and a pushing block, the pushing block is rotated by a motor. The cross-section of the pushing block is set to a flat ellipse. When the pushing block is rotated by the motor, when the protruding side of the pushing block contacts the bottom of the filter screen, it will push the filter screen upward. When the protruding side of the pushing block moves away from the filter screen, the filter screen will move downward again. The above process is repeated to complete the sieving of rare earth magnetic powder by the filter screen. Furthermore, by setting up a shaking group, the sieving effect is further improved, ensuring the overall grinding efficiency. Attached Figure Description
[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0016] In the attached diagram:
[0017] Figure 1 This is a schematic diagram of the rare earth magnetic powder grinding device of this utility model;
[0018] Figure 2This is a schematic diagram showing the disassembled structure of the fixing frame and the grinding jar of this utility model;
[0019] Figure 3 This is a sectional view of the fixing frame of this utility model;
[0020] Figure 4 This is a schematic diagram showing the disassembled structure of the filter screen and the fixing frame of this utility model;
[0021] Figure 5 for Figure 4 The enlarged view of point A shown;
[0022] In the diagram: 1. Fixed frame; 2. Support frame; 3. Motor 1; 4. Connecting rod; 5. Drive disc 1; 6. Drive disc 2; 7. Belt; 8. Motor 2; 9. Support plate; 10. Discharge frame; 11. Caster wheel; 12. Mounting plate; 13. Filter screen; 14. Grinding roller; 15. Discharge hole; 16. Grinding jar; 17. Guide plate; 18. Push block; 19. Connecting frame; 20. Vibrating block; 21. Drive rod; 22. Guide column; 23. Spring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0024] Depend on Figures 1-5 The present invention includes a rare earth magnetic powder grinding device, comprising a grinding body, a fixed frame 1 on the grinding body, a screening component inside the fixed frame 1, the grinding body including a grinding tank 16, a grinding roller 14, a support frame 2 and a drive unit, the grinding tank 16 being mounted on the support frame 2, a plurality of discharge holes 15 being provided on one side of the grinding tank 16, the grinding roller 14 being mounted inside the grinding tank 16, the output end of the drive unit being connected to one end of the grinding roller 14, a plurality of casters 11 being mounted on the bottom of the support frame 2, a discharge frame 10 being provided on one side of the fixed frame 1, an mounting plate 12 being fixedly connected to the side of the fixed frame 1 near the discharge frame 10, and a motor 3 being fixedly mounted on the mounting plate 12;
[0025] The screening assembly includes a filter screen 13, a motor 3, a drive rod 21, a push block 18, and multiple vibration groups. The motor 3 is installed on one side of the fixed frame 1. The output end of the motor 3 is fixedly connected to one end of the drive rod 21. The end of the drive rod 21 away from the motor 3 is fixedly connected to one side of the push block 18. The cross-section of the push block 18 is set as a flat ellipse. One side of the push block 18 is attached to the bottom of the filter screen 13. Multiple vibration groups are set on the outer side wall of the filter screen 13. The filter screen 13 is connected to the inner side wall of the fixed frame 1 through multiple vibration groups.
[0026] Specifically, by setting up a filter screen 13 and a pushing block 18, the pushing block 18 is rotated by a motor 3. The cross-section of the pushing block 18 is set to a flat ellipse. When the motor 3 drives the pushing block 18 to rotate, when the protruding side of the pushing block 18 contacts the bottom of the filter screen 13, it will push the filter screen 13 to move upward. When the protruding side of the pushing block 18 moves away from the filter screen 13, the filter screen 13 will move downward again. The above process is repeated to complete the sieving of rare earth magnetic powder by the filter screen 13.
[0027] The drive assembly includes a second motor 8, a support plate 9, a first drive disk 5, and a second drive disk 6. The support plate 9 is fixedly installed inside the support frame 2. The second motor 8 is fixedly installed on the support plate 9. The output end of the second motor 8 is fixedly connected to one side of the first drive disk 5. The first drive disk 5 and the second drive disk 6 are connected by a belt 7. One end of the grinding roller 14 is provided with a connecting rod 4. The grinding roller 14 is fixedly connected to one side of the second drive disk 6 through the connecting rod 4.
[0028] The motor 28 drives the drive disk 15 to rotate, and the drive disk 15 drives the drive disk 26 to rotate. When the drive disk 26 rotates, it will drive the grinding roller 14 to rotate, and the grinding roller 14 grinds the rare earth magnetic powder inside the grinding tank 16.
[0029] A guide plate 17 is fixedly installed inside the fixed frame 1. The guide plate 17 is inclined. One end of the guide plate 17 is fixedly connected to a connecting frame 19. The connecting frame 19 is connected to the grinding tank 16. The guide plate 17 guides the sieved rare earth magnetic powder so that the sieved rare earth magnetic powder enters the interior of the connecting frame 19.
[0030] The shaking assembly includes a shaking block 20, a guide post 22, and a spring 23. One side of the shaking block 20 is fixedly connected to one side of the filter screen 13. The shaking block 20 is movably disposed in a movable groove provided on the inner side wall of the fixed frame 1. The opposite ends of the guide post 22 are fixedly connected to the opposite inner side wall of the movable groove. The guide post 22 passes through the shaking block 20. There are two springs 23. The two springs 23 are fixedly connected to the opposite side of the shaking block 20. The ends of the two springs 23 away from the shaking block 20 are fixedly connected to the opposite inner side wall of the movable groove.
[0031] Specifically, during the reciprocating motion of the filter screen 13, the reciprocating motion of the shaking block 20 continuously compresses and stretches the spring 23. The spring 23 stores and releases energy during the compression and stretching process. When the shaking block 20 compresses the spring 23, the spring 23 stores energy; when the shaking block 20 moves away, the spring 23 releases energy, pushing the filter screen 13 to continue shaking. The change in relative position causes the displacement of the filter screen 13 to increase during the shaking process, that is, the shaking amplitude increases. The increased shaking amplitude helps to more effectively remove impurities and particles attached to the surface of the filter screen 13.
[0032] Working principle: During operation, by setting up filter screen 13 and push block 18, the motor 3 drives push block 18 to rotate. The cross-section of push block 18 is set to a flat ellipse. When the motor 3 drives push block 18 to rotate, when the protruding side of push block 18 contacts the bottom of filter screen 13, it will push filter screen 13 to move upward. When the protruding side of push block 18 moves away from filter screen 13, filter screen 13 will move downward again. The above process is repeated to complete the sieving of rare earth magnetic powder by filter screen 13.
[0033] During the reciprocating motion of the filter screen 13, the reciprocating motion of the shaking block 20 continuously compresses and stretches the spring 23. The spring 23 stores and releases energy during the compression and stretching process. When the shaking block 20 compresses the spring 23, the spring 23 stores energy; when the shaking block 20 moves away, the spring 23 releases energy, pushing the filter screen 13 to continue shaking. The change in relative position causes the displacement of the filter screen 13 to increase during the shaking process, that is, the shaking amplitude increases. The increased shaking amplitude helps to more effectively remove impurities and particles attached to the surface of the filter screen 13.
Claims
1. A rare earth magnetic powder grinding device, comprising a grinding body, characterized in that: The grinding body is provided with a fixed frame (1), and a screening component is provided inside the fixed frame (1); The screening assembly includes a filter screen (13), a motor (3), a drive rod (21), a push block (18), and multiple shaking groups. The motor (3) is installed on one side of the fixed frame (1). The output end of the motor (3) is fixedly connected to one end of the drive rod (21). The end of the drive rod (21) away from the motor (3) is fixedly connected to one side of the push block (18). The cross-section of the push block (18) is set as a flat ellipse. One side of the push block (18) is attached to the bottom of the filter screen (13). Multiple shaking groups are set on the outer side wall of the filter screen (13). The filter screen (13) is connected to the inner side wall of the fixed frame (1) through multiple shaking groups.
2. The rare earth magnetic powder grinding device according to claim 1, characterized in that: The grinding body includes a grinding jar (16), a grinding roller (14), a support frame (2), and a drive unit. The grinding jar (16) is mounted on the support frame (2). A plurality of discharge holes (15) are provided on one side of the grinding jar (16). The grinding roller (14) is installed inside the grinding jar (16). The output end of the drive unit is connected to one end of the grinding roller (14).
3. The rare earth magnetic powder grinding device according to claim 2, characterized in that: The drive assembly includes a second motor (8), a support plate (9), a first drive disk (5), and a second drive disk (6). The support plate (9) is fixedly installed inside the support frame (2). The second motor (8) is fixedly installed on the support plate (9). The output end of the second motor (8) is fixedly connected to one side of the first drive disk (5). The first drive disk (5) and the second drive disk (6) are connected by a belt (7). One end of the grinding roller (14) is provided with a connecting rod (4). The grinding roller (14) is fixedly connected to one side of the second drive disk (6) through the connecting rod (4).
4. The rare earth magnetic powder grinding device according to claim 3, characterized in that: A guide plate (17) is fixedly installed inside the fixed frame (1). The guide plate (17) is inclined. A connecting frame (19) is fixedly connected to one end of the guide plate (17). The connecting frame (19) is connected to the grinding tank (16).
5. The rare earth magnetic powder grinding device according to claim 4, characterized in that: The shaking assembly includes a shaking block (20), a guide post (22), and a spring (23). One side of the shaking block (20) is fixedly connected to one side of the filter screen (13). The shaking block (20) is movably set in the movable groove provided on the inner side wall of the fixed frame (1). The opposite ends of the guide post (22) are fixedly connected to the opposite inner side wall of the movable groove. The guide post (22) passes through the shaking block (20). There are two springs (23). The two springs (23) are fixedly connected to the opposite side of the shaking block (20). The ends of the two springs (23) away from the shaking block (20) are fixedly connected to the opposite inner side wall of the movable groove.
6. The rare earth magnetic powder grinding device according to claim 5, characterized in that: The bottom of the support frame (2) is equipped with multiple casters (11).
7. The rare earth magnetic powder grinding device according to claim 6, characterized in that: A discharge frame (10) is provided on one side of the fixed frame (1), and an mounting plate (12) is fixedly connected to the side of the fixed frame (1) close to the discharge frame (10). The motor (3) is fixedly installed on the mounting plate (12).