A permanent magnet fixing structure for a drive motor rotor

By designing components such as limit blocks, pull plates, and slide rods on the drive motor rotor, the problems of inconvenient positioning and difficult disassembly in the permanent magnet fixing structure are solved, realizing stable positioning and convenient disassembly of the permanent magnet.

CN122137151APending Publication Date: 2026-06-02NANTONG VOCATIONAL COLLEGE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANTONG VOCATIONAL COLLEGE
Filing Date
2026-01-21
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing permanent magnet fixing structure of the drive motor rotor cannot easily position the two sides of the permanent magnet, and is inconvenient to disassemble, which makes the permanent magnet easy to shake.

Method used

The structure design includes permanent magnet components, connecting components, positioning components, flipping components, moving components, rotating components, and linkage components. Through the cooperation of components such as limit blocks, pull plates, slide rods, racks, and gears, the permanent magnet can be conveniently positioned and disassembled.

Benefits of technology

It achieves stable positioning and convenient disassembly of permanent magnets, and can adjust the number of limit blocks to be disassembled according to needs, thereby improving disassembly efficiency and positioning accuracy.

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Abstract

This invention discloses a permanent magnet fixing structure for a drive motor rotor, belonging to the field of permanent magnet fixing technology. It includes a permanent magnet assembly and a connecting assembly mounted on the permanent magnet assembly. The connecting assembly has a side limiting component, the permanent magnet assembly has a positioning component, the positioning component has a flipping component, the connecting assembly has a moving component, the moving component has a rotating component, and the rotating component has a linkage component. This invention, by setting limiting blocks, facilitates limiting the two sides of the permanent magnet. By setting pull plates, pulling the pull plates shortens the first spring, causing the sliding rod to slide and thus move the limiting blocks away from the permanent magnet, facilitating the removal of the permanent magnet. When one pull plate moves, it can drive the rotating plate and the stop block to move. The connecting rod slides on the pull plate, shortening the second spring, allowing both pull plates to move simultaneously, thus enabling both limiting blocks to move away from the permanent magnet simultaneously for removal.
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Description

Technical Field

[0001] This invention relates to a permanent magnet fixing structure, and more particularly to a permanent magnet fixing structure for a drive motor rotor, belonging to the field of permanent magnet fixing technology. Background Technology

[0002] A drive motor is a mechanical device developed based on servo technology, widely used in industrial automation, precision positioning, and robotics. It replaces the traditional reducer structure with a direct drive method, directly connecting the load through a flange to eliminate backlash and vibration. It features low speed, high torque, low noise, minimal maintenance, and high response speed. The permanent magnet needs to be mounted on the drive motor using a fixed structure.

[0003] The existing permanent magnet fixing structure of the drive motor rotor cannot easily position the two sides of the permanent magnet during actual use, which makes the permanent magnet easy to shake. It also cannot be easy to adjust the positioning plate to disassemble the permanent magnet according to the disassembly direction. Summary of the Invention

[0004] The main objective of this invention is to solve the problems of inconvenient positioning of the two sides of the permanent magnet and relatively inconvenient disassembly, and to provide a permanent magnet fixing structure for driving motor rotor.

[0005] The objective of this invention can be achieved by adopting the following technical solution: A permanent magnet fixing structure for a drive motor rotor includes a permanent magnet assembly and a connecting assembly mounted on the permanent magnet assembly. A side limiting assembly is mounted on the connecting assembly. A positioning assembly is mounted on the permanent magnet assembly. A flipping assembly is mounted on the positioning assembly. A moving assembly is mounted on the connecting assembly. A rotating assembly is mounted on the moving assembly. A linkage assembly is mounted on the rotating assembly.

[0006] Preferably, the permanent magnet assembly includes a housing, a support block, and a permanent magnet, wherein the support block is mounted on the housing, and the permanent magnet is slidably mounted on the support block.

[0007] Preferably, the connecting assembly includes a first connecting plate, a connecting block, and a connecting post. The connecting block is mounted on the housing, the connecting post is mounted on the connecting block, and the first connecting plate is mounted on the connecting post.

[0008] Preferably, the limiting assembly includes a pull plate, a second connecting plate, a slide rod, a first spring, a pull rod, and a limiting block. The slide rod is slidably mounted on the first connecting plate, the second connecting plate is mounted on the slide rod, the limiting block is mounted on the second connecting plate, the pull plate is mounted on the slide rod, the pull rod is mounted on the pull plate, and the second connecting plate is connected to the pull plate by the first spring.

[0009] Preferably, the positioning component includes a limiting plate, a connecting ring, a support block, and a rotating column. The support block is mounted on the support block, the connecting ring is mounted on the support block, the rotating column is rotatably mounted on the connecting ring, and the limiting plate is mounted on the rotating column.

[0010] Preferably, the flipping assembly includes a rack, a gear, and a base rod. The base rod is mounted on the second connecting plate, the rack is mounted on the base rod, and the gear that meshes with the rack is mounted on the rotating column.

[0011] Preferably, the moving component includes a connecting rod, a second spring, a support plate, and a side block. The connecting rod is slidably mounted on the pull plate, and the connecting rod is connected to the pull plate via the second spring. The side block is mounted on the connecting rod, and the support plate is mounted on the side block.

[0012] Preferably, the rotating assembly includes a rotating plate, a rotating rod, and a rotating block. The rotating plate is rotatably mounted on the support plate, the rotating rod is mounted on the rotating plate, the rotating block is mounted on the rotating rod, and the support plate has a rotating groove that cooperates with the rotating block.

[0013] Preferably, the linkage component includes a sliding column, a stop block, and a third spring. The sliding column is slidably mounted on the rotating plate, and the stop block is mounted on the sliding column. The stop block is connected to the rotating plate through the third spring.

[0014] Preferably, a first magnet is mounted on the rotating block, and a second magnet that cooperates with the first magnet is mounted on the tray.

[0015] Beneficial technical effects of the present invention: According to the permanent magnet fixing structure of the drive motor rotor of the present invention, by setting a limiting block, it is easy to limit the two sides of the permanent magnet. By setting a pull plate, pulling the pull plate shortens the first spring, slides the slide rod, and thus drives the limiting block to move away from the permanent magnet, which facilitates the removal of the permanent magnet. When one of the pull plates moves, it can drive the rotating plate and the abutment block to move. The connecting rod slides on the pull plate and the second spring shortens, which can make both pull plates move at the same time, thus making both limiting blocks move away from the permanent magnet at the same time for removal of the permanent magnet. When it is necessary to move one of the limiting blocks alone, the rotating plate is rotated, the rotating block rotates in the rotating groove, and at this time the abutment block rotates in the groove of the pull plate. The slide rod and the third spring The device allows the abutment block to fit into the groove, enabling it to rotate out of the pull plate. Pulling one of the pull plates then allows for the individual movement of one of the limiting blocks. The number of limiting blocks that can be removed can be adjusted according to disassembly requirements. By setting a support block, the permanent magnet can be easily supported. By setting a connecting column that cooperates with the connecting block, the first connecting plate can be easily supported. By setting a connecting block, connecting column, and first connecting plate that cooperate with each other, the sliding rod and connecting rod can be easily supported. By setting a sliding connection between the sliding rod and the pull plate, the limiting block can be easily guided and limited. By setting a pull rod, the pull plate can be easily pulled. By setting a connecting rod, the support plate and rotating plate can be easily guided and limited.

[0016] By setting a limiting plate, the permanent magnet can be easily limited. Pulling the plate will move the second connecting plate, which in turn will move the rack. When the rack moves, it will drive the gear to rotate, which will cause the limiting plate to flip, allowing the limiting plate to move away from the permanent magnet and making it easy to release the limiting plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the rack structure of the present invention; Figure 3 This is a schematic diagram of the permanent magnet structure of the present invention; Figure 4 This is a schematic diagram of the limiting block structure of the present invention; Figure 5 This is a schematic diagram of the gear structure of the present invention; Figure 6 This is a schematic diagram of the pull plate structure of the present invention; Figure 7 This is a schematic diagram of the block structure of the present invention; Figure 8 This is a schematic diagram of the rotating plate structure of the present invention; Figure 9 This is a schematic diagram of the block structure of the present invention; Figure 10This is a schematic diagram of the second magnet structure of the present invention; Figure 11 This is a schematic diagram of the sliding column structure of the present invention; Figure 12 This is a schematic diagram of the third spring structure of the present invention.

[0018] In the diagram: 1. Shell; 11. Support block; 12. Permanent magnet; 2. First connecting plate; 21. Connecting block; 22. Connecting column; 3. Pull plate; 31. Second connecting plate; 32. Slide rod; 33. First spring; 34. Pull rod; 35. Limiting block; 4. Rotating plate; 41. Rotating rod; 42. Rotating block; 5. Connecting rod; 51. Second spring; 52. Support plate; 53. Side block; 6. Rack; 61. Gear; 62. Base rod; 7. Limiting plate; 71. Connecting ring; 72. Support block; 73. Rotating column; 8. Slide column; 81. Abutment block; 82. Third spring; 9. First magnet; 91. Second magnet. Detailed Implementation

[0019] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0020] like Figures 1-12As shown, the permanent magnet fixing structure for the drive motor rotor provided in this embodiment includes a permanent magnet assembly and a connecting assembly mounted on the permanent magnet assembly. A side limiting assembly is mounted on the connecting assembly, a positioning assembly is mounted on the permanent magnet assembly, a flipping assembly is mounted on the positioning assembly, a moving assembly is mounted on the connecting assembly, a rotating assembly is mounted on the moving assembly, and a linkage assembly is mounted on the rotating assembly. By setting the limiting block 35, the two sides of the permanent magnet 12 can be easily limited. By setting the pull plate 3, pulling the pull plate 3 shortens the first spring 33, and the slide rod 32 slides, thereby driving the limiting block 35 to move away from the permanent magnet 12, facilitating the disassembly of the permanent magnet 12. When one of the pull plates 3 moves, it can drive the rotating plate 4 and the abutment... When block 81 moves, connecting rod 5 slides on pull plate 3, second spring 51 shortens, enabling both pull plates 3 to move simultaneously, thus allowing both limit blocks 35 to move away from permanent magnet 12 simultaneously for disassembly of permanent magnet 12. When it is necessary to move one of the limit blocks 35 individually, rotate plate 4, rotating block 42 rotates in the rotating groove, at which time abutment block 81 rotates in the groove on pull plate 3. Sliding column 8 and third spring 82 enable abutment block 81 to fit into the groove, thus enabling abutment block 81 to rotate out of pull plate 3. At this time, pulling one of the pull plates 3 can move one of the limit blocks 35 individually. The number of limit blocks 35 to be disassembled can be adjusted according to disassembly requirements. The permanent magnet assembly includes housing 1, support block 11 and permanent magnet 12. Support block 1 is installed on housing 1. 1. A permanent magnet 12 is slidably mounted on the support block 11. The support block 11 facilitates the support of the permanent magnet 12. The connecting assembly includes a first connecting plate 2, a connecting block 21, and a connecting post 22. The connecting block 21 is mounted on the housing 1, the connecting post 22 is mounted on the connecting block 21, and the first connecting plate 2 is mounted on the connecting post 22. The connecting post 22 and the connecting block 21 cooperate with each other to facilitate the support of the first connecting plate 2. The connecting block 21, the connecting post 22, and the first connecting plate 2 cooperate with each other to facilitate the support of the slide rod 32 and the connecting rod 5. The limiting assembly includes a pull plate 3, a second connecting plate 31, a slide rod 32, a first spring 33, a pull rod 34, and a limiting block 35. The slide rod is slidably mounted on the first connecting plate 2. 32. A second connecting plate 31 is installed on the slide rod 32. A limit block 35 is installed on the second connecting plate 31. A pull plate 3 is installed on the slide rod 32. A pull rod 34 is installed on the pull plate 3. The second connecting plate 31 is connected to the pull plate 3 via a first spring 33. By setting the slide rod 32 and the pull plate 3 to slide together, the limit block 35 can be easily guided and limited. By setting the pull rod 34, the pull plate 3 can be easily pulled. The moving component includes a connecting rod 5, a second spring 51, a support plate 52, and a side block 53. The connecting rod 5 is slidably installed on the pull plate 3. The connecting rod 5 is connected to the pull plate 3 via the second spring 51. A side block 53 is installed on the connecting rod 5. A support plate 52 is installed on the side block 53. By setting the connecting rod 5, the support plate 52 and the rotating plate 4 can be easily guided and limited.Furthermore, it facilitates support for the pallet 52. The rotating assembly includes a rotating plate 4, a rotating rod 41, and a rotating block 42. The rotating plate 4 is rotatably mounted on the pallet 52, the rotating rod 41 is mounted on the rotating plate 4, and the rotating block 42 is mounted on the rotating rod 41. The pallet 52 has a rotating groove that cooperates with the rotating block 42. By setting the rotating block 42 to rotate with the rotating groove, the rotating plate 4 can be rotated easily. The linkage assembly includes a sliding column 8, a stop block 81, and a third spring 82. The sliding column 8 is slidably mounted on the rotating plate 4, and the stop block 81 is mounted on the sliding column 8. The stop block 81 is connected to the rotating plate 4 through the third spring 82. By setting the sliding column 8 to slide with the rotating plate 4, the stop block 81 can be guided and limited. A first magnet 9 is mounted on the rotating block 42, and a second magnet 91 that cooperates with the first magnet 9 is mounted on the pallet 52. By setting the first magnet 9 and the second magnet 91 to cooperate with each other, the rotating plate 4 can be limited after rotation.

[0021] In this embodiment, as Figure 1 , Figure 3 and Figure 5 As shown, the positioning assembly includes a limiting plate 7, a connecting ring 71, a support block 72, and a rotating column 73. The support block 72 is mounted on the support block 11, the connecting ring 71 is mounted on the support block 72, and the rotating column 73 is rotatably mounted on the connecting ring 71. The limiting plate 7 is mounted on the rotating column 73. By setting the connecting ring 71 and the support block 72 to cooperate with each other, the rotating column 73 can be easily supported, thereby facilitating the support of the limiting plate 7. The flipping assembly includes a rack 6, a gear 61, and a base rod 62. The base rod is mounted on the second connecting plate 31. 62. A rack 6 is installed on the base rod 62, and a gear 61 that meshes with the rack 6 is installed on the rotating column 73. By setting the base rod 62, the rack 6 can be easily supported. By setting the limiting plate 7, the permanent magnet 12 can be easily limited. Pulling the pull plate 3 will drive the second connecting plate 31 to move. At this time, the rack 6 will move. When the rack 6 moves, it can drive the gear 61 to rotate, which can drive the limiting plate 7 to flip, so that the limiting plate 7 can move away from the permanent magnet 12, and the limitation of the limiting plate 7 can be easily released.

[0022] In this embodiment, as Figures 1-12 As shown in the figure, the working process of the permanent magnet fixing structure for the drive motor rotor provided in this embodiment is as follows: Step 1: Pull the pull plate 3, the first spring 33 shortens, the slide bar 32 slides and can drive the limit block 35 to move away from the permanent magnet 12, and pull the permanent magnet 12 to disassemble the permanent magnet 12. Step 2: When it is necessary to move one of the limiting blocks 35 individually, rotate the rotating plate 4, and the rotating block 42 rotates in the rotating groove. At this time, the abutment 81 rotates in the groove on the pull plate 3. The sliding column 8 and the third spring 82 make the abutment 81 fit into the groove, and then rotate the abutment 81 out of the pull plate 3. At this time, pull one of the pull plates 3 to move one of the limiting blocks 35 individually, and move the permanent magnet 12 out from the side without the limiting block 35. Step 3: Pull the pull plate 3, which in turn moves the second connecting plate 31. This moves the rack 6, which in turn rotates the gear 61, causing the limiting plate 7 to flip and move away from the permanent magnet 12, thus releasing the limiting plate 7 from its position.

[0023] In summary, in this embodiment, the permanent magnet fixing structure of the drive motor rotor, by setting the limiting block 35, facilitates the limiting of both sides of the permanent magnet 12. By setting the pull plate 3, pulling the pull plate 3 shortens the first spring 33, and the slide rod 32 slides, thereby driving the limiting block 35 to move away from the permanent magnet 12, which facilitates the disassembly of the permanent magnet 12. When one of the pull plates 3 moves, it can drive the rotating plate 4 and the abutment block 81 to move. The connecting rod 5 slides on the pull plate 3, and the second spring 51 shortens, which can make both pull plates 3 move simultaneously, thereby making both limiting blocks 35 move away from the permanent magnet 12 simultaneously for disassembly. When removing the permanent magnet 12, if it is necessary to move one of the limiting blocks 35 individually, rotate the rotating plate 4. The rotating block 42 rotates in the rotating groove. At this time, the abutment 81 rotates in the groove on the pull plate 3. The sliding column 8 and the third spring 82 can make the abutment 81 fit into the groove, thereby allowing the abutment 81 to rotate out of the pull plate 3. Then, pulling one of the pull plates 3 can move one of the limiting blocks 35 individually. The number of limiting blocks 35 that can be removed can be adjusted according to the disassembly requirements. By setting the support block 11, it is easy to support the permanent magnet 12. By setting the connecting column 22 and the connecting block 21 to cooperate with each other, it is easy to support the first connecting plate 2. The system is designed with a connecting block 21, a connecting column 22, and a first connecting plate 2 to support the sliding rod 32 and the connecting rod 5. The sliding rod 32 is slidably connected to the pull plate 3, facilitating the guiding and limiting of the limiting block 35. The pull rod 34 allows for easy pulling of the pull plate 3. The connecting rod 5 facilitates guiding and limiting of the support plate 52 and the rotating plate 4, and also provides support for the support plate 52. The rotating block 42 is rotatably connected to the rotating groove, facilitating the rotation of the rotating plate 4. The sliding column 8 is slidably connected to the rotating plate 4, facilitating the guiding and limiting of the abutment block 81. The system also includes a first magnet 9 and a second magnet 2000. The two magnets 91 work together to limit the rotation of the rotating plate 4. The connecting ring 71 and the support block 72 work together to support the rotating column 73, which in turn supports the limiting plate 7. The bottom rod 62 supports the rack 6. The limiting plate 7 limits the permanent magnet 12. Pulling the pull plate 3 moves the second connecting plate 31, which in turn moves the rack 6. When the rack 6 moves, it drives the gear 61 to rotate, which in turn causes the limiting plate 7 to flip, moving the limiting plate 7 away from the permanent magnet 12 and allowing the limiting plate 7 to be released from its position.

[0024] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0025] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0026] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A permanent magnet fixing structure for a drive motor rotor, characterized in that, The device includes a permanent magnet assembly and a connecting assembly mounted on the permanent magnet assembly. A side limiting assembly is mounted on the connecting assembly. A positioning assembly is mounted on the permanent magnet assembly. A flipping assembly is mounted on the positioning assembly. A moving assembly is mounted on the connecting assembly. A rotating assembly is mounted on the moving assembly. A linkage assembly is mounted on the rotating assembly.

2. The permanent magnet fixing structure for a drive motor rotor according to claim 1, characterized in that, The permanent magnet assembly includes a housing (1), a support block (11), and a permanent magnet (12). The support block (11) is mounted on the housing (1), and the permanent magnet (12) is slidably mounted on the support block (11).

3. The permanent magnet fixing structure for a drive motor rotor according to claim 2, characterized in that, The connecting assembly includes a first connecting plate (2), a connecting block (21) and a connecting post (22). The connecting block (21) is installed on the housing (1), the connecting post (22) is installed on the connecting block (21), and the first connecting plate (2) is installed on the connecting post (22).

4. The permanent magnet fixing structure for a drive motor rotor according to claim 3, characterized in that, The limiting assembly includes a pull plate (3), a second connecting plate (31), a slide rod (32), a first spring (33), a pull rod (34), and a limiting block (35). The slide rod (32) is slidably mounted on the first connecting plate (2), the second connecting plate (31) is mounted on the slide rod (32), the limiting block (35) is mounted on the second connecting plate (31), the pull plate (3) is mounted on the slide rod (32), the pull rod (34) is mounted on the pull plate (3), and the second connecting plate (31) is connected to the pull plate (3) by the first spring (33).

5. The permanent magnet fixing structure for a drive motor rotor according to claim 4, characterized in that, The positioning component includes a limiting plate (7), a connecting ring (71), a support block (72), and a rotating column (73). The support block (72) is installed on the support block (11), the connecting ring (71) is installed on the support block (72), the rotating column (73) is rotatably installed on the connecting ring (71), and the limiting plate (7) is installed on the rotating column (73).

6. The permanent magnet fixing structure for a drive motor rotor according to claim 5, characterized in that, The flipping assembly includes a rack (6), a gear (61) and a base rod (62). The base rod (62) is mounted on the second connecting plate (31), the rack (6) is mounted on the base rod (62), and the gear (61) that meshes with the rack (6) is mounted on the rotating column (73).

7. The permanent magnet fixing structure for a drive motor rotor according to claim 6, characterized in that, The moving component includes a connecting rod (5), a second spring (51), a support plate (52) and a side block (53). The connecting rod (5) is slidably mounted on the pull plate (3). The connecting rod (5) is connected to the pull plate (3) through the second spring (51). The side block (53) is mounted on the connecting rod (5) and the support plate (52) is mounted on the side block (53).

8. The permanent magnet fixing structure for a drive motor rotor according to claim 7, characterized in that, The rotating assembly includes a rotating plate (4), a rotating rod (41), and a rotating block (42). The rotating plate (4) is rotatably mounted on the support plate (52). The rotating rod (41) is mounted on the rotating plate (4). The rotating block (42) is mounted on the rotating rod (41). The support plate (52) has a rotating groove that cooperates with the rotating block (42).

9. The permanent magnet fixing structure for a drive motor rotor according to claim 8, characterized in that, The linkage component includes a sliding column (8), a stop block (81) and a third spring (82). The sliding column (8) is slidably mounted on the rotating plate (4), and the stop block (81) is mounted on the sliding column (8). The stop block (81) is connected to the rotating plate (4) through the third spring (82).

10. The permanent magnet fixing structure for a drive motor rotor according to claim 9, characterized in that, A first magnet (9) is installed on the rotating block (42), and a second magnet (91) that cooperates with the first magnet (9) is installed on the tray (52).