Magnetic steel rotating mechanism

By designing a magnet rotation mechanism, a support rotation mechanism and a brushless motor are used to drive the magnet to rotate stably. An epoxy resin fixing and lubrication mechanism is used to improve the rotation reliability and stability of the magnet, solving the problem of the difficulty in rotating AlNiCo alloy magnets and achieving stability and efficiency in signal transmission.

CN223744453UActive Publication Date: 2025-12-30BEIJING YONGGUANG GAOTE MICRO MOTOR CO LTD
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Patent Information

Application Number
CN202520098569.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-12-30
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

AlNiCo alloy magnets are hard and brittle, making them impossible to cold work. This makes it difficult to machine the magnets into shafts for rapid rotation, affecting signal transmission efficiency.

Method used

A magnet rotation mechanism was designed, which uses a support rotation mechanism and a brushless motor to drive the magnet to rotate stably, and improves the rotation reliability and stability of the magnet through an epoxy resin fixing and lubrication mechanism.

Benefits of technology

This achieves stable rotation of the magnet, reduces its exposure, and improves the reliability and efficiency of signal transmission.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a magnetic steel rotating mechanism, and relates to the field of permanent magnet low-frequency communication, the magnetic steel rotating mechanism comprises a protective shell, a partition plate is fixed in the protective shell, a brushless motor is fixed on one side of the partition plate, magnetic steel is arranged on the side, away from the brushless motor, of the partition plate, and a supporting rotating mechanism is arranged between the magnetic steel and the protective shell. And an auxiliary lubricating mechanism is arranged in the protective shell. The magnetic steel is fixed on the supporting and rotating mechanism, and the supporting and rotating mechanism is used for driving the magnetic steel to rotate stably, so that the magnetic steel can rotate conveniently, the magnetic steel is kept stable during rotation, exposure of the magnetic steel is reduced, and the reliability of the magnetic steel during rotation is improved.
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Description

TECHNICAL FIELD

[0001] The application relates to the field of permanent magnet low-frequency communication, in particular to a magnetic steel rotating mechanism. BACKGROUND

[0002] The permanent magnet low-frequency communication technology is a technology for near-field low-frequency magnetic communication by using a rotating permanent magnet antenna. The technology overcomes the defects of a traditional low-frequency coil antenna, such as large volume, high power consumption and low efficiency, and is mainly applied to near-field low-frequency magnetic communication. The rotating permanent magnet antenna is a new type of low-frequency magnetic antenna, and the working principle thereof is to modulate a magnetic field by rotating a permanent magnet to realize information transmission.

[0003] The magnetic steel is a special magnetic material and is a suitable main magnet for the permanent magnet low-frequency communication. The magnetic steel is usually made of metal alloys such as iron, nickel and cobalt, and sometimes contains elements such as copper, niobium and tantalum. The aluminum-nickel-cobalt magnetic steel can normally work at a high temperature of 500 DEG C or above, which is one of the biggest features. In addition, the magnetic steel has corrosion resistance and high coercivity.

[0004] However, the aluminum-nickel-cobalt magnetic steel is hard and brittle, cannot be cold-worked, and must be made by casting or sintering, which makes it difficult to process the magnetic steel into a shaft body for rotation, and the magnetic steel is not convenient to rotate quickly and transmit signals. CONTENT OF THE INVENTION

[0005] The application aims to solve the problem that the aluminum-nickel-cobalt magnetic steel is hard and brittle, cannot be cold-worked, and must be made by casting or sintering, which makes it difficult to process the magnetic steel into a shaft body for rotation, and the magnetic steel is not convenient to rotate quickly and transmit signals, and provides a magnetic steel rotating mechanism.

[0006] In order to achieve the above purpose, the application specifically adopts the following technical scheme:

[0007] The magnetic steel rotating mechanism comprises a protective shell, a partition plate is fixed in the protective shell, a brushless motor is fixed on one side of the partition plate, a magnetic steel is arranged on the side, away from the brushless motor, of the partition plate, a supporting rotating mechanism is arranged between the magnetic steel and the protective shell, and an auxiliary lubricating mechanism is arranged in the protective shell.

[0008] By adopting the above technical scheme, the magnetic steel is fixed on the supporting rotating mechanism, the magnetic steel is driven to rotate stably by the supporting rotating mechanism, the magnetic steel can be conveniently rotated, the magnetic steel can be kept stable during rotation, the magnetic steel is reduced to be exposed, and the reliability of the magnetic steel during rotation is increased.

[0009] Further, the support rotating mechanism comprises a support piece two arranged in the protection shell, one end of the support piece two is fixed with a support piece three, the support piece three is fixedly connected with the protection shell, one end of the support piece two away from the support piece three is fixed with a support piece one, a rotating assembly is arranged between the support piece one and the support piece three, and a fixing assembly is arranged between the support piece one and the support piece three.

[0010] By adopting the above technical scheme, the magnet steel is fixed on the rotating assembly by the fixing assembly, then the rotating assembly is driven by the brushless motor in the protection shell, the rotating assembly drives the fixing assembly, and the fixing assembly drives the magnet steel to stably rotate, so that the magnet steel can be conveniently rotated and kept stable during rotation, the magnet steel is reduced to be exposed, and the reliability of the magnet steel during rotation is increased.

[0011] Further, the fixing assembly comprises a support rotor arranged between the support piece one and the support piece two, the support rotor is provided with a fixing groove, the magnet steel is located in the fixing groove, the opening end of the fixing groove is provided with a plugging plate, the plugging plate is fixedly connected with the support rotor, four pouring grooves that are symmetrical in pairs are arranged in the fixing groove, and the pouring grooves are communicated with the fixing groove.

[0012] By adopting the above technical scheme, the magnet steel is inserted into the fixing groove of the support rotor, then epoxy resin is injected into the pouring groove, and the connection between the magnet steel and the support rotor is increased by using the epoxy resin, so that the support rotor can increase the stable reliability of the magnet steel during rotation.

[0013] Further, the rotating assembly comprises two rotating pieces symmetrically arranged between the support piece one and the support piece three, rotating bearings are rotatably connected to the rotating pieces, the two rotating bearings are fixedly connected with the corresponding support piece one and support piece three, and the two ends of the support rotor are fixedly connected with the two rotating pieces.

[0014] By adopting the above technical scheme, the rotating pieces are supported by the support piece one and the support piece three, and the rotating pieces rotate under the support of the rotating bearings, so that the two rotating pieces can conveniently drive the support rotor to rotate.

[0015] Further, a shaft coupling is arranged between the support piece one and the partition plate, the rotating pieces penetrate through the rotating bearings and are fixedly connected with the shaft coupling, and one end of the shaft coupling away from the rotating pieces is fixedly connected with the output end of the brushless motor.

[0016] By adopting the above technical scheme, the output end of the brushless motor drives the rotating pieces to rotate through the shaft coupling, so that the rotating pieces can be conveniently rotated.

[0017] Further, the support piece one and the partition plate are provided with a support piece four, two ends of the support piece four are fixedly connected with the support piece one and the partition plate, and the shaft coupling is located in the support piece four.

[0018] By adopting the above technical scheme, the shaft coupling is protected by the support piece four, so that the exposure of the shaft coupling can be reduced, and the possibility of abnormal rotation can be reduced.

[0019] Further, the support piece one is fixed with a lubricating block, an oil storage groove is formed in the lubricating block, a lubricating hose is fixed on the lubricating block, and the lubricating hose is in communication with the oil storage groove.

[0020] By adopting the above technical scheme, the lubricating oil in the oil storage groove of the lubricating block enters the rotating bearing through the lubricating hose, so that the rotating bearing can be conveniently lubricated, and the possibility that the rotating bearing lacks lubrication and affects normal rotation can be reduced.

[0021] Further, a pushing block is slidably connected to the lubricating block, the pushing block is located in the oil storage groove, an electric telescopic rod is fixed on the lubricating block, and an output end of the electric telescopic rod is fixedly connected with the pushing block.

[0022] By adopting the above technical scheme, the electric telescopic rod drives the pushing block to move in the oil storage groove of the lubricating block, so that the lubricating oil can be conveniently conveyed from the lubricating hose to the rotating bearing.

[0023] In summary, the present application has at least one of the following beneficial effects:

[0024] 1、 the present application, by inserting the magnetic steel into the fixed groove of the support rotor, then pouring the epoxy resin into the pouring groove, using the epoxy resin to increase the connection between the magnetic steel and the support rotor, then using the blocking plate to cover the fixed groove of the support rotor, using the blocking plate to limit and fix the magnetic steel, allowing the brushless motor to drive one of the rotating members through the shaft coupling, allowing the rotating member to rotate on the rotating shaft fixed on the support piece one, allowing the rotating member to drive the support rotor, allowing the support rotor to drive the other rotating member to rotate on the rotating bearing of the support piece three, allowing the support rotor to rotate under the support of the two rotating members, allowing the support piece two between the support piece one and the support piece three to protect the rotating support rotor, allowing the magnetic steel to change the magnetic field when rotating, allowing the signal to be transmitted, achieving the purpose of conveniently rotating the magnetic steel, keeping the magnetic steel stable when rotating, reducing the exposure of the magnetic steel, and increasing the reliability of the magnetic steel when rotating.

[0025] 2. In this application, when the rotating bearing supports the rotating component for a long time, an electric telescopic rod is used to drive the push block, which moves in the oil reservoir in the lubrication block. The push block pushes the lubricating oil in the oil reservoir, and the lubricating oil is delivered from the lubrication hose to the rotating bearing. When the rotating bearing rotates, the lubricating oil lubricates the rotating bearing, thereby achieving the purpose of conveniently lubricating the rotating bearing and reducing the possibility of the rotating bearing being affected by lack of lubrication. Attached Figure Description

[0026] Figure 1 This is a first three-dimensional structural schematic diagram of the magnet rotating mechanism in this application;

[0027] Figure 2 This is a three-dimensional cross-sectional structural diagram of the magnet rotating mechanism in this application;

[0028] Figure 3 This is a three-dimensional structural diagram of the magnet rotating mechanism in this application;

[0029] Figure 4 This application Figure 2 Enlarged diagram of point A in the middle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Protective shell; 2. Dividing plate; 3. Brushless motor; 4. Support rotation mechanism; 41. Support component one; 42. Support component two; 43. Fixing assembly; 431. Support rotor; 432. Fixing groove; 433. Sealing plate; 434. Casting groove; 44. Rotating assembly; 441. Rotating component; 442. Rotating bearing; 45. Coupling; 46. Support component four; 47. Support component three; 5. Auxiliary lubrication mechanism; 51. Lubrication block; 52. Oil reservoir; 53. Lubrication hose; 54. Electric telescopic rod; 55. Pushing block; 6. Magnet. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.

[0033] This application discloses a magnet rotating mechanism.

[0034] Reference Figure 1 , Figure 2 and Figure 3 A magnet rotating mechanism includes a protective shell 1, a dividing plate 2 fixed inside the protective shell 1, a brushless motor 3 fixed on one side of the dividing plate 2, a magnet 6 disposed on the side of the dividing plate 2 away from the brushless motor 3, a supporting rotating mechanism 4 disposed between the magnet 6 and the protective shell 1, and an auxiliary lubrication mechanism 5 disposed inside the protective shell 1.

[0035] In addition, the support rotating mechanism 4 comprises a support piece two 42 arranged in the protective shell 1, one end of the support piece two 42 is fixed with a support piece three 47, the support piece three 47 is fixedly connected with the protective shell 1, the other end of the support piece two 42 away from the support piece three 47 is fixed with a support piece one 41, a rotating assembly 44 is arranged between the support piece one 41 and the support piece three 47, and a fixing assembly 43 is arranged between the support piece one 41 and the support piece three 47.

[0036] The magnetic steel 6 is fixed on the rotating assembly 44 by the fixing assembly 43, then the rotating assembly 44 is driven by the brushless motor 3 in the protective shell 1, the rotating assembly 44 drives the fixing assembly 43, the fixing assembly 43 drives the magnetic steel 6 to rotate stably, the magnetic field of the magnetic steel 6 changes during rotation, signal transmission is realized, and the auxiliary lubricating mechanism 5 is used for lubricating the rotating assembly 44 during long-time use, so that the stability of the rotating assembly 44 driving the fixing assembly 43 to rotate is ensured, and the entire mechanism is made of non-magnetic material FR-4, the magnetic steel 6 is wrapped by the fixing assembly 43, the rotating assembly 44 supported by the support piece one 41 and the support piece three 47 drives the fixing assembly 43 to rotate, so that the magnetic steel 6 can rotate conveniently, the stability of the magnetic steel 6 during rotation is maintained, the magnetic steel 6 is reduced to be exposed, and the reliability of the magnetic steel 6 during rotation is increased.

[0037] With reference to Figure 1 , Figure 2 and Figure 3 , the fixing assembly 43 comprises a support rotor 431 arranged between the support piece one 41 and the support piece two 42, the support rotor 431 is provided with a fixed groove 432, the magnetic steel 6 is located in the fixed groove 432, the opening end of the fixed groove 432 is provided with a blocking plate 433, the blocking plate 433 is fixedly connected with the support rotor 431, four pouring grooves 434 symmetrically arranged in pairs are arranged in the fixed groove 432, and the pouring grooves 434 are communicated with the fixed groove 432. When the magnetic steel 6 is fixed, the magnetic steel 6 is first inserted into the fixed groove 432 of the support rotor 431, then epoxy resin is injected into the pouring grooves 434, the connection between the magnetic steel 6 and the support rotor 431 is increased by using the epoxy resin, then the blocking plate 433 is covered on the fixed groove 432 of the support rotor 431, the magnetic steel 6 is fixed in position by using the blocking plate 433, the magnetic steel 6 is fixed again by using the epoxy resin, and finally the magnetic steel 6 is sealed by using the blocking plate 433, so that the stability and reliability of the rotation of the magnetic steel 6 can be increased when the support rotor 431 drives the magnetic steel 6 to rotate.

[0038] With reference to Figure 1 , Figure 2 and Figure 3The rotating assembly 44 comprises two rotating members 441 symmetrically arranged between the support member one 41 and the support member three 47, the rotating member 441 is rotatably connected with a rotating bearing 442, the two rotating bearings 442 are fixedly connected with the corresponding support member one 41 and support member three 47, and the two ends of the support rotor 431 are fixedly connected with the two rotating members 441.

[0039] In addition, a shaft coupling 45 is arranged between the support member one 41 and the split plate 2, the rotating member 441 penetrates through the rotating bearing 442 and is fixedly connected with the shaft coupling 45, and the end of the shaft coupling 45 away from the rotating member 441 is fixedly connected with the output end of the brushless motor 3.

[0040] In addition, a support member four 46 is arranged between the support member one 41 and the split plate 2, the two ends of the support member four 46 are fixedly connected with the support member one 41 and the split plate 2, and the shaft coupling 45 is located in the support member four 46.

[0041] When the support rotor 431 rotates, the brushless motor 3 drives one of the rotating members 441 through the shaft coupling 45 to rotate on the rotating shaft fixedly connected with the support member one 41, the rotating member 441 drives the support rotor 431 to rotate on the rotating bearing 442 of the support member three 47, and the support rotor 431 rotates under the support of the two rotating members 441, and the support member two 42 protects the rotating support rotor 431, and the brushless motor 3 drives the rotating member 441 through the shaft coupling 45 to rotate under the support of the rotating bearing 442, so that the rotating member 441 drives the support rotor 431 to rotate conveniently.

[0042] Referring to Figure 2 , Figure 3 and Figure 4 , the support member one 41 is fixedly connected with a lubricating block 51, the lubricating block 51 is provided with an oil storage groove 52, the lubricating block 51 is fixedly connected with a lubricating hose 53, and the lubricating hose 53 is in communication with the oil storage groove 52.

[0043] In addition, the lubricating block 51 is slidably connected with a pushing block 55, the pushing block 55 is located in the oil storage groove 52, the lubricating block 51 is fixedly connected with an electric telescopic rod 54, and the output end of the electric telescopic rod 54 is fixedly connected with the pushing block 55.

[0044] When the rotating bearing 442 supports the rotating part 441 for a long time to rotate, the electric telescopic rod 54 drives the pushing block 55 to move in the oil storage groove 52 in the lubricating block 51, the pushing block 55 pushes the lubricating oil in the oil storage groove 52, the lubricating oil is transported to the rotating bearing 442 from the lubricating hose 53, and when the rotating bearing 442 rotates, the lubricating oil lubricates the rotating bearing 442. By regularly pushing the lubricating oil in the lubricating block 51 to the rotating bearing 442 by the pushing block 55, the rotating bearing 442 can be conveniently lubricated, and the possibility of affecting normal rotation due to lack of lubrication of the rotating bearing 442 is reduced.

[0045] Working principle: when the magnetic steel 6 is fixed, first put the magnetic steel 6 into the fixed groove 432 of the support rotor 431, then pour epoxy resin into the pouring groove 434, use the epoxy resin to increase the connection between the magnetic steel 6 and the support rotor 431, then cover the fixed groove 432 of the support rotor 431 with the blocking plate 433, use the blocking plate 433 to limit and fix the magnetic steel 6, let the brushless motor 3 drive one of the rotating parts 441 through the shaft coupling 45, let the rotating part 441 rotate on the rotating shaft of the support part one 41, the rotating part 441 drives the support rotor 431, the support rotor 431 drives the other rotating part 441 to rotate on the rotating bearing 442 of the support part three 47, let the support rotor 431 rotate under the support of the two rotating parts 441, the support part two 42 between the support part one 41 and the support part three 47 protects the rotating support rotor 431, let the magnetic steel 6 change the magnetic field when rotating to transmit signals, when the rotating bearing 442 supports the rotating part 441 for a long time to rotate, the electric telescopic rod 54 drives the pushing block 55 to move in the oil storage groove 52 in the lubricating block 51, the pushing block 55 pushes the lubricating oil in the oil storage groove 52, the lubricating oil is transported to the rotating bearing 442 from the lubricating hose 53, and when the rotating bearing 442 rotates, the lubricating oil lubricates the rotating bearing 442.

Claims

1. A magnetic steel rotating mechanism comprising a protective casing (1), characterized in that: The protection shell (1) is fixed with a partition plate (2), one side of the partition plate (2) is fixed with a brushless motor (3), the side of the partition plate (2) away from the brushless motor (3) is provided with a magnetic steel (6), the magnetic steel (6) and the protection shell (1) are provided with a supporting rotating mechanism (4), and the protection shell (1) is provided with an auxiliary lubricating mechanism (5).

2. A magnetic steel rotating mechanism according to claim 1, characterized by: The supporting rotating mechanism (4) comprises a supporting piece two (42) arranged in the protection shell (1), one end of the supporting piece two (42) is fixed with a supporting piece three (47), the supporting piece three (47) is fixedly connected with the protection shell (1), one end of the supporting piece two (42) away from the supporting piece three (47) is fixed with a supporting piece one (41), the supporting piece one (41) and the supporting piece three (47) are provided with a rotating assembly (44), and the supporting piece one (41) and the supporting piece three (47) are provided with a fixing assembly (43).

3. A magnetic steel rotating mechanism according to claim 2, wherein: The fixing assembly (43) comprises a supporting rotor (431) arranged between the supporting piece one (41) and the supporting piece two (42), the supporting rotor (431) is provided with a fixing groove (432), the magnetic steel (6) is located in the fixing groove (432), the opening end of the fixing groove (432) is provided with a blocking plate (433), the blocking plate (433) is fixedly connected with the supporting rotor (431), and four two-by-two symmetrical pouring grooves (434) are arranged in the fixing groove (432) and are communicated with the fixing groove (432).

4. A magnet steel rotating mechanism according to claim 3, characterized in that: The rotating assembly (44) comprises two rotating pieces (441) symmetrically arranged between the supporting piece one (41) and the supporting piece three (47), the rotating piece (441) is rotatably connected with a rotating bearing (442), the two rotating bearings (442) are fixedly connected with the corresponding supporting piece one (41) and the supporting piece three (47), and the two ends of the supporting rotor (431) are fixedly connected with the two rotating pieces (441).

5. A magnet steel rotating mechanism according to claim 4, wherein: The supporting piece one (41) and the partition plate (2) are provided with a shaft coupling (45), the rotating piece (441) penetrates through the rotating bearing (442) and is fixedly connected with the shaft coupling (45), and one end of the shaft coupling (45) away from the rotating piece (441) is fixedly connected with the output end of the brushless motor (3).

6. A magnetic steel rotating mechanism according to claim 5, wherein: The supporting piece one (41) and the partition plate (2) are provided with a supporting piece four (46), the two ends of the supporting piece four (46) are fixedly connected with the supporting piece one (41) and the partition plate (2), and the shaft coupling (45) is located in the supporting piece four (46).

7. A magnetic steel rotating mechanism according to claim 4, wherein: The supporting piece one (41) is fixed with a lubricating block (51), the lubricating block (51) is provided with an oil storage groove (52), and the lubricating block (51) is fixedly connected with a lubricating hose (53) which is communicated with the oil storage groove (52).

8. A magnetic steel rotating mechanism according to claim 7, wherein: The lubricating block (51) is slidably connected with a pushing block (55), the pushing block (55) is located in the oil storage groove (52), the lubricating block (51) is fixed with an electric telescopic rod (54), and the output end of the electric telescopic rod (54) is fixedly connected with the pushing block (55).