CN213528974U - Magnetic powder grinding device - Google Patents
Magnetic powder grinding device Download PDFInfo
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- CN213528974U CN213528974U CN202022092911.5U CN202022092911U CN213528974U CN 213528974 U CN213528974 U CN 213528974U CN 202022092911 U CN202022092911 U CN 202022092911U CN 213528974 U CN213528974 U CN 213528974U
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- rotor
- magnetic powder
- outer rotor
- inner rotor
- grinding apparatus
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Abstract
The utility model discloses a magnetic powder grinding device, which comprises an inner rotor, an outer rotor, a first motor for driving the inner rotor, and a second motor for driving the outer rotor; the outer rotor is of a hollow structure, the inner rotor is arranged inside the outer rotor, a cavity between the outer rotor and the inner rotor is used for containing materials to be ground, a plurality of first cutters are arranged on the outer surface of the inner rotor, a plurality of second cutters are arranged on the inner wall of the outer rotor, the inner rotor and the outer rotor rotate under the driving of the first motor and the second motor, and the first cutters and the second cutters rotate along with the inner rotor and the outer rotor. The device can greatly improve the uniformity of the magnetic powder obtained by grinding and improve the grinding efficiency.
Description
Technical Field
The utility model relates to a magnetic material technical field especially relates to a magnetic powder grinding device.
Background
In the production process of a magnetic material, a grinding process is often required to crush magnetic materials in a sheet form or the like into granular powder. The existing magnetic powder grinding device is mainly a grinding device mainly based on ball milling or sanding, the grinding devices are mostly in one-way rotation grinding, clockwise or anticlockwise grinding can be selected for partial devices, but clockwise and anticlockwise grinding cannot be carried out simultaneously, the uniformity of ground magnetic powder is to be improved, and meanwhile, the grinding efficiency is to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a magnetic powder grinding device utilizes the device can improve the homogeneity of the magnetic that grinds the obtaining by a wide margin to improve grinding efficiency.
The technical scheme of the utility model is that: a magnetic powder grinding device comprises an inner rotor, an outer rotor, a first motor and a second motor, wherein the first motor is used for driving the inner rotor, and the second motor is used for driving the outer rotor;
the outer rotor is of a hollow structure, the inner rotor is arranged inside the outer rotor, and a cavity between the outer rotor and the inner rotor is used for containing materials to be ground;
the outer surface of the inner rotor is provided with a plurality of first cutters, and the inner rotor rotates under the driving of a first motor, so that the first cutters rotate along with the inner rotor;
and a plurality of second cutters are arranged on the inner wall of the outer rotor, and the outer rotor rotates under the driving of a second motor, so that the second cutters rotate along with the outer rotor.
Preferably, the magnetic powder grinding device further comprises a control unit for controlling the rotating speed and the rotating direction of the first motor and the second motor.
Preferably, the magnetic powder grinding device further comprises a sleeve arranged on the periphery of the outer rotor and used for protecting the inner rotor, the outer rotor and other components in the sleeve, and a gap exists between the sleeve and the outer rotor. Preferably, a partition is arranged at the gap, a sealed space is formed between the sleeve and the outer rotor and can be used for containing a cooling medium, the sleeve is provided with an inlet and an outlet, and the cooling medium can enter the gap through the inlet and flow out of the gap through the outlet. The structural design is favorable for dissipating heat generated in the grinding process and reducing the temperature of the grinding material. The cooling medium is not limited and includes a cooling liquid such as cooling water or the like, or a cooling gas.
The distribution of the first cutters on the outer surface of the inner rotor is not limited, for example, the first cutters are symmetrically distributed on the outer surface of the inner rotor, including axial symmetry, central symmetry and the like.
The distribution of the second cutters on the inner wall of the inner rotor is not limited, for example, the second cutters are symmetrically distributed on the inner wall of the inner rotor, including axisymmetric distribution, centrosymmetric distribution, and the like.
The material of the inner rotor main shaft is not limited, and can be hard alloy and the like, and can be selected according to different magnetic powder.
The material of the grinding cutter and the sleeve is not limited, and can be one of zirconia, natural agate, polyurethane, alumina and the like, and can be selected according to different magnetic powder.
The material of the outer rotor main shaft is not limited, and can be one of zirconia, natural agate, alumina and hard alloy, and can be matched with an inner rotor and a grinding cutter for use.
As an implementation mode, the outer rotor and the second cutter are of an integrated structure.
As an implementation mode, the inner rotor and the first cutter are structurally designed, the middle part of the inner rotor is fixed through a key pin, and the inner rotor is convenient to mount, dismount and clean.
Under the regulation and control of the control unit, the rotating speed and the rotating direction of the inner rotor and the outer rotor can be selected according to actual requirements. Preferably, the inner and outer rotors are counter-rotating, e.g., the inner rotor rotates clockwise and the outer rotor rotates counterclockwise, or the inner rotor rotates counterclockwise and the outer rotor rotates clockwise. Preferably, the control unit sets a rotation speed ratio of the inner rotor and the outer rotor, and the sheet-shaped magnetic powder with different particle sizes can be obtained through the rotation speed ratio, for example, the rotation speed ratio of the inner rotor and the outer rotor can be set to be one of 1:1, 2:1, 3:1, 1:2, 1:3 and the like.
Preferably, the magnetic powder grinding device further comprises a cover plate which is used for sealing the inner rotor and the outer rotor together with the sleeve and other components and can be used for preventing grinding materials from splashing and the like in the grinding process. Preferably, the cover plate is provided with a discharge port and a feed port, and the grinding material and/or the solvent for grinding can be fed into the cavity through the feed port and output through the discharge port. As further preferred, the feed inlet and the discharge outlet are provided with filter screens to avoid dirt entering. The filter screen can be set to be a structure easy to disassemble, and is convenient to clean and replace.
The utility model discloses a magnetic grinding device includes the double-deck rotating-structure that inner rotor and external rotor constitute, and the cavity between inner rotor and the external rotor will be waited to grind the magnet and place during operating condition, under first motor and second motor drive, inner rotor and external rotor rotate respectively, have realized the double-deck grinding of magnet, and the direction of rotation when inner rotor and external rotor is different, has realized the two-way grinding simultaneously of magnet, has improved the grinding homogeneity greatly, has improved grinding efficiency simultaneously. Additionally, the utility model discloses the double-deck rotation of accessible the control unit control can be regulated and control according to actual need, and is simple and easy, safe high-efficient.
Drawings
Fig. 1 is a schematic view of the structure of a magnetic powder grinding apparatus in example 1.
Fig. 2 is a schematic structural view of the outer rotor and the inner rotor in fig. 1.
Fig. 3 is a schematic structural view of the inner rotor of fig. 1.
The reference numerals in fig. 1 are: the device comprises a control console 1, a sleeve 3, a cover plate 4, a control unit 5, a first servo motor 6, an inner rotor 7, a second grinding cutter 8, a second servo motor 9, a first grinding cutter 10, a key pin 11, an outer rotor 12, a partition plate 13, a cooling medium inlet 14, a cooling medium outlet 15 and an inlet and outlet 16.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, wherein the following embodiments are provided to facilitate understanding of the present invention and do not limit the present invention.
In this embodiment, the magnetic powder grinding apparatus, as shown in fig. 1, includes an inner rotor 7, an outer rotor 12, a sleeve 3, a cover plate 4, a first servomotor 6 for driving the inner rotor, a second servomotor 9 for driving the outer rotor, and a console 1 provided with a control unit 5.
As shown in fig. 2, the outer rotor is a hollow structure, the inner rotor is disposed inside the outer rotor, and a cavity between the outer rotor and the inner rotor is used for accommodating a material to be ground.
As shown in fig. 1, 2 and 3, a plurality of first grinding tools 10 are arranged on the outer surface of the inner rotor, and the inner rotor rotates under the driving of the first motor, and the first grinding tools rotate along with the inner rotor. In this embodiment, the inner rotor and the first grinding cutter are structurally designed, the middle of the inner rotor and the first grinding cutter are fixed through the key pin 11, the inner rotor and the first grinding cutter are convenient to install, disassemble and clean, and after grinding for a certain time, the inner rotor can be replaced or cleaned through disassembling the fixed key pin.
As shown in fig. 1 and 2, a plurality of second grinding tools 8 are arranged on the inner wall of the outer rotor, and the outer rotor rotates under the driving of a second motor, so that the second grinding tools rotate along with the outer rotor. In this embodiment, the outer rotor and the second grinding tool are integrated.
As shown in fig. 1, the sleeve is disposed around the outer rotor, and the cover plate is disposed over the outer rotor and the inner rotor. The sleeve and the cover plate are used for sealing and protecting the inner rotor, the outer rotor and other components, and can also be used for preventing grinding materials from splashing in the grinding process and the like. A gap exists between the sleeve and the outer rotor, a partition plate 13 is arranged at the gap, a sealed space is formed between the sleeve and the outer rotor and can be used for containing a cooling medium, the sleeve is provided with a cooling medium inlet 14 and a cooling medium outlet 15, the cooling medium can enter the space through the cooling medium inlet 14 and flow out of the space through the cooling medium outlet 15. The structural design is favorable for dissipating heat generated in the grinding process and reducing the temperature of the grinding material. The cooling medium may be a cooling liquid such as cooling water or a cooling gas.
The cover plate is provided with a discharge port and a feed port, and the grinding material and/or the solvent for grinding can be fed into a cavity between the outer rotor and the inner rotor through the feed port and output through the discharge port. The feed inlet and the discharge outlet are provided with filter screens to avoid dirt entering. The filter screen can be set to be a structure easy to disassemble, and is convenient to clean and replace. In this embodiment, as shown in fig. 1, the discharge port and the feed port are integrated into a port 16. In addition, the cover plate, the inner rotor bracket and the outer rotor bracket are provided with certain spaces, so that magnetic powder is prevented from being clamped between the upper cover plate and the inner rotor and the outer rotor during grinding.
During the operating condition, will wait to grind magnet and grinding solvent and place the cavity between inner rotor and outer rotor, under first servo motor and second servo motor drive, inner rotor and outer rotor rotate respectively, drive first grinding cutter and second grinding cutter and rotate, have realized the double-deck grinding to the magnet. The control unit controls the rotating speed and the rotating direction of the first servo motor and the second servo motor. When the rotation directions of the inner rotor and the outer rotor are different, namely clockwise (anticlockwise) and anticlockwise (clockwise) directions, the bidirectional simultaneous grinding of the magnets is realized, the grinding uniformity is greatly improved, and the grinding efficiency is improved. In addition, through the control of the control unit, when the rotation speed ratio of the inner rotor and the outer rotor is set to be different values, the magnetic powder with different particle sizes can be obtained, for example, the rotation speed ratio of the inner rotor and the outer rotor can be set to be one of the rotation speed ratios of 1:1, 2:1, 3:1, 1:2, 1:3 and the like.
The above-mentioned embodiment is to the technical solution of the present invention has been described in detail, it should be understood that the above is only the specific embodiment of the present invention, not used for limiting the present invention, any modification, supplement or similar mode replacement etc. that the principle scope of the present invention is in should be included in the protection scope of the present invention.
Claims (13)
1. The utility model provides a magnetic powder grinder which characterized by: the motor comprises an inner rotor, an outer rotor, a first motor and a second motor, wherein the first motor is used for driving the inner rotor;
the outer rotor is of a hollow structure, the inner rotor is arranged inside the outer rotor, and a cavity between the outer rotor and the inner rotor is used for containing materials to be ground;
the outer surface of the inner rotor is provided with a plurality of first cutters, and the inner rotor rotates under the driving of a first motor, so that the first cutters rotate along with the inner rotor;
and a plurality of second cutters are arranged on the inner wall of the outer rotor, and the outer rotor rotates under the driving of a second motor, so that the second cutters rotate along with the outer rotor.
2. The magnetic powder grinding apparatus according to claim 1, wherein: the control unit is used for controlling the rotating speed and the rotating direction of the first motor and the second motor.
3. The magnetic powder grinding apparatus according to claim 1, wherein: the transmission device also comprises a sleeve arranged on the periphery of the outer rotor, and a gap is formed between the sleeve and the outer rotor.
4. A magnetic powder grinding apparatus according to claim 3, wherein: and a partition plate is arranged at the gap, and a sealed space is formed between the sleeve and the outer rotor and used for accommodating a cooling medium.
5. The magnetic powder grinding apparatus according to claim 4, wherein: the sleeve is provided with an inlet and an outlet, and the cooling medium enters the space through the inlet and flows out of the space through the outlet.
6. The magnetic powder grinding apparatus according to claim 1, wherein: the first cutters are symmetrically distributed on the outer surface of the inner rotor.
7. The magnetic powder grinding apparatus according to claim 1, wherein: the second cutters are symmetrically distributed on the inner wall of the inner rotor.
8. The magnetic powder grinding apparatus according to claim 1, wherein: the outer rotor and the second cutter are of an integrated structure.
9. The magnetic powder grinding apparatus according to claim 1, wherein: the inner rotor and the first cutter are fixed through a key pin.
10. The magnetic powder grinding apparatus according to claim 3 or 4, wherein: the sealing device further comprises a cover plate, and the cover plate and the sleeve are used for sealing the inner rotor and the outer rotor.
11. The magnetic powder grinding apparatus according to claim 10, wherein: the cover plate is provided with a discharge hole and a feed inlet.
12. The magnetic powder grinding apparatus according to claim 11, wherein: the feed inlet and the discharge outlet are provided with filter screens.
13. The magnetic powder grinding apparatus according to claim 12, wherein: the filter screen is of a structure easy to disassemble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022092911.5U CN213528974U (en) | 2020-09-22 | 2020-09-22 | Magnetic powder grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022092911.5U CN213528974U (en) | 2020-09-22 | 2020-09-22 | Magnetic powder grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213528974U true CN213528974U (en) | 2021-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022092911.5U Active CN213528974U (en) | 2020-09-22 | 2020-09-22 | Magnetic powder grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213528974U (en) |
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2020
- 2020-09-22 CN CN202022092911.5U patent/CN213528974U/en active Active
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