Disc type motor rotor carbon fiber ring winding tool

Abstract

The utility model provides a disc type motor rotor carbon fiber ring winding tool which comprises a chuck, stepped shafts and a rotor, the stepped shafts comprise a first stepped shaft and a second stepped shaft, the second stepped shaft is arranged in the middle of the first stepped shaft, a third stepped shaft is arranged on the first side of the second stepped shaft, and the third stepped shaft is arranged on the second side of the second stepped shaft. The diameter of the third stepped shaft is larger than that of the second stepped shaft, the diameter of the second stepped shaft is larger than that of the first stepped shaft, the rotor is arranged on the second stepped shaft in a sleeving mode, the two sides of the rotor are each sleeved with a chuck, a clamping structure is arranged on the second side of the second stepped shaft to clamp and fix the chucks, and the diameter of the chucks is larger than or equal to that of the rotor. The peripheral edges of the chucks of the tool protrude out of the periphery of the rotor disc, a groove is formed in the periphery of the rotor disc after the chucks on the two sides oppositely clamp the rotor disc, the winding position of a carbon fiber belt can be conveniently positioned only by winding the carbon fiber belt in the groove when the carbon fiber belt is wound, and the production efficiency and the reliability of a finished product are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon fiber winding of motor rotors, in particular to a carbon fiber ring winding tool for a disc-type motor rotor. Background Art

[0002] Axial magnetic field permanent magnet motors, also known as disc motors, are widely used in the market due to their compact structure, small size, light weight, and high torque density. The rotor structure of existing disc motors primarily consists of a rotor disc and magnets. The magnets must be fixed to the mounting disc. This is typically achieved by bonding, screwing, or creating clips to support the rotor disc. However, bonding has become a secondary fixing method because repeated expansion due to motor heat can cause the magnets to fall off. Screw fastening is inefficient and can damage the magnet structure, affecting the magnetic circuit and reducing motor efficiency. Clips are often complex and cumbersome to assemble, making it difficult to guarantee a good product yield and reducing production efficiency.

[0003] To improve the stability of the magnets on the rotor disk, carbon fiber rings are now often used, placed around the outer circumference of the magnets and the rotor disk to prevent the magnets from slipping out of the rotor disk. The carbon fiber rings require significant tension to support the magnets, making it difficult to directly form the ring and then attach it to the rotor disk. Instead, carbon fiber tape must be directly wound around the outer circumference of the rotor disk to form the rings. However, the winding position and height of the carbon fiber tape currently require precise positioning, necessitating the development of an auxiliary tool to improve the efficiency and accuracy of the carbon fiber tape winding.

[0004] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art. Utility Model Content

[0005] In order to solve the above-mentioned problems of carbon fiber winding positioning and winding efficiency, the utility model provides a disc motor rotor carbon fiber ring winding tooling, including a chuck, a stepped shaft and a rotor, the stepped shaft including a first stepped shaft and a second stepped shaft, the second stepped shaft is arranged in the middle of the first stepped shaft, a third stepped shaft is arranged on the first side of the second stepped shaft, the diameter of the third stepped shaft is greater than the diameter of the second stepped shaft, the diameter of the second stepped shaft is greater than the diameter of the first stepped shaft, the rotor is sleeved on the second stepped shaft, and one of the chucks is sleeved on both sides of the rotor, and a clamping structure is provided on the second side of the second stepped shaft to clamp and fix the chuck, and the diameter of the chuck is greater than or equal to the diameter of the rotor.

[0006] Furthermore, the clamping structure includes a locking block and a locking nut. The locking block is sleeved on one end of the first stepped shaft away from the third stepped shaft, and the first stepped shaft is threadedly connected to the locking nut at one end close to the locking block.

[0007] Furthermore, the rotor includes a rotor disk, a magnetic steel and a carbon fiber ring. The magnetic steel is evenly clamped on the rotor disk, and the carbon fiber ring is sleeved on the outer circumference of the rotor disk.

[0008] Furthermore, a height of the outer periphery of the chuck protruding relative to the rotor disk is equal to a thickness of the carbon fiber ring.

[0009] Furthermore, the rotor disk includes a base and a plurality of support spokes, the support spokes are evenly arranged along the circumference of the base, the number of the magnetic steels is the same as the number of the support spokes, and the magnetic steels are clamped between adjacent support spokes.

[0010] Furthermore, first limiting portions are provided on both sides of the supporting spokes, and second limiting portions are provided on both sides of the magnetic steel, and the first limiting portions and the second limiting portions are engaged with each other.

[0011] Furthermore, the first limiting portion is concave and the second limiting portion is convex, or the first limiting portion is convex and the second limiting portion is concave.

[0012] The above solution of the utility model has the following beneficial effects:

[0013] 1. The carbon fiber ring winding tooling for a disc-type motor rotor provided by the utility model has a chuck tightly attached to each side of the rotor disc. The rotor disc is clamped and fixed by the third stepped shaft and clamping blocks on both sides of the chuck. The outer peripheral edge of the chuck protrudes from the outer periphery of the rotor disc. After the chucks on both sides are clamped relative to each other, a groove is formed on the outer periphery of the rotor disc. When the carbon fiber tape is wound, it only needs to be wound in the groove to conveniently realize the positioning of the carbon fiber tape winding position; at the same time, the winding thickness of the carbon fiber tape can be determined by setting the groove depth.

[0014] 2. The tooling has a simple structure and is easy to operate when winding the carbon fiber tape around the rotor disk to fix the magnetic steel. It does not require clips or complicated assembly structures, which can greatly improve production efficiency and finished product reliability.

[0015] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model (without the carbon fiber tape wrapped);

[0017] Figure 2This is a front view of the overall structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Cross-sectional view along the AA line (with carbon fiber tape wrapped);

[0019] Figure 4 This is an exploded installation diagram of the utility model.

[0020] [Description of Reference Numerals]

[0021] 1-chuck; 2-rotor disk; 21-base; 22-support spokes; 23-first limiting portion; 3-magnet; 31-second limiting portion; 4-carbon fiber ring; 5-stepped shaft; 51-first stepped shaft; 52-second stepped shaft; 53-third stepped shaft; 54-external thread; 6-locking block; 7-locking nut. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The various specific technical features and embodiments described in the specific embodiments can be combined in any suitable manner unless there is any contradiction. For example, different embodiments can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in the present invention will not be described separately.

[0023] It should be noted that the terms "setting" and "connecting" should be understood in a broad sense. For example, they can be directly set, installed, or connected, or they can be indirectly set or connected through a central component or a central structure. In addition, the orientations or positional relationships indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. in the present invention are based on the orientations or positional relationships shown in the drawings or the conventional placement state or usage state. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure, feature, device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0024] like Figures 1 to 3As shown, this embodiment provides a carbon fiber ring winding tool for a disc motor rotor, comprising a chuck 1, a stepped shaft 5, and a rotor. The stepped shaft 5 comprises a first stepped shaft 51 and a second stepped shaft 52. The second stepped shaft 52 is disposed in the middle of the first stepped shaft 51. A third stepped shaft 53 is disposed on the first side of the second stepped shaft 52. The diameter of the third stepped shaft 53 is greater than that of the second stepped shaft 52. The diameter of the second stepped shaft 52 is greater than that of the first stepped shaft 51. The rotor is sleeved on the second stepped shaft 52, and a chuck 1 is sleeved on each side of the rotor. The rotor comprises a rotor disc 2, a magnet 3, and a carbon fiber ring 4. The magnet 3 is evenly clamped on the rotor disc 2, and the carbon fiber ring 4 is sleeved on the outer circumference of the rotor disc 2. The rotor disc 1 is provided with a connection hole for connecting to the axial motor main shaft. The diameter of the second stepped shaft 52 is consistent with the diameter of the connection hole. At the same time, the chuck 1 is also provided with a connection hole of the same diameter as that on the rotor disc 1. First, the first chuck 1 is sleeved onto the second stepped shaft 52. At this time, the third stepped shaft 53 on one side of the second stepped shaft 52 will limit the chuck 1. Then, the rotor and the second chuck 1 are sleeved onto the second stepped shaft 52 in sequence. Finally, a clamping structure is sleeved on the second side of the second stepped shaft 52. The chucks 1 on both sides are squeezed by the clamping structure and the third stepped shaft respectively, thereby clamping the rotor through the chuck 1. The clamping structure includes a locking block 6 and a locking nut 7. The locking block 6 is sleeved on the end of the first stepped shaft 51 away from the third stepped shaft 53. The first stepped shaft 51 is threadedly connected to the locking nut 7 at the end close to the locking block 6. Correspondingly, an external thread 54 is provided on the first stepped shaft 51. The locking nut 7 is threadedly connected to the external thread 54. The locking nut 7 abuts the locking block 6 to clamp the chuck 1.

[0025] Furthermore, the diameter of the chuck 1 needs to be greater than or equal to the diameter of the rotor, that is, the outer periphery of the chuck 1 needs to protrude radially by a certain height relative to the outer peripheral edge of the rotor disk 2. After the chucks 1 on both sides clamp the rotor disk 2, a groove will be formed. This groove is exactly the position where the carbon fiber tape needs to be wound. The width of the carbon fiber tape is the same as the width of the groove. When the carbon fiber tape is wound, it can be accurately positioned to ensure that the winding position of the carbon fiber tape is strictly controlled on the outer periphery of the rotor disk 2 without deviation. The carbon fiber ring 4 formed by the winding of the carbon fiber tape is accurately fixed on the outer periphery of the rotor disk 2 through high tension, thereby limiting the radial movement of the magnet 2.

[0026] Furthermore, the height of the radial protrusion of the outer periphery of the chuck 1 relative to the outer peripheral edge of the rotor disk 2 is equal to the thickness of the carbon fiber ring 4, that is, the depth of the groove formed after the chucks 1 on both sides clamp the rotor disk 2 is equal to the thickness of the carbon fiber ring 4. When winding the carbon fiber tape, it only needs to be wound until it is flush with the outer peripheral edge of the chuck 1 to achieve the preset carbon fiber tape winding thickness, and it can be quickly confirmed whether the winding is completed.

[0027] In this embodiment, the rotor disk 2 includes a base 21 and a plurality of support spokes 22, which are evenly arranged along the circumference of the base 21. The number of magnets 3 is the same as the number of support spokes 22, and the magnets 3 are clamped between adjacent support spokes 22. Specifically, a first stopper 23 is provided on both sides of the support spokes 22, and a second stopper 31 is provided on both sides of the magnets 3. The first stopper 23 is convex, and the second stopper 31 is concave. The first stopper 23 and the second stopper 31 cooperate and engage, thereby clamping the magnets 3 into the support spokes 22. The shapes of the first stopper 23 and the second stopper 31 can be square, arc-shaped, wedge-shaped, etc., as long as they can effectively restrict the shape of the magnets 3. In other embodiments, the first stopper 23 can be concave and the second stopper 31 can be convex.

[0028] When using the fixture provided by the present invention, first apply glue to the first limiting portion of the magnet 3, then clamp the magnet 3 to the support spoke 22. The glue can prevent the magnet 3 from slipping out during installation and rotation. Then, clamp the magnet 3 between the two chucks 1, tighten the lock nut 7, and then rotate the two ends of the first stepped shaft 51 to connect them to the support seat (not shown in the figure). By rotating the first stepped shaft 51, the rotor disk 2 is driven to rotate, and the carbon fiber tape is wrapped around the outer edge of the rotor disk 2 and the magnet 3. After winding is completed, loosen the lock nut 7, and the rotor disk with the carbon fiber ring 4 can be removed, greatly improving production efficiency and the reliability of the finished product.

[0029] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A carbon fiber ring winding tool for a disc motor rotor, characterized in that: The invention comprises a chuck (1), a stepped shaft (5) and a rotor, wherein the stepped shaft (5) comprises a first stepped shaft (51) and a second stepped shaft (52), wherein the second stepped shaft (52) is arranged in the middle of the first stepped shaft (51), a third stepped shaft (53) is arranged on the first side of the second stepped shaft (52), the diameter of the third stepped shaft (53) is greater than the diameter of the second stepped shaft (52), and the diameter of the second stepped shaft (52) is greater than the diameter of the first stepped shaft, and the rotor is sleeved on the second stepped shaft (52), and one chuck (1) is sleeved on both sides of the rotor respectively, and a clamping structure is arranged on the second side of the second stepped shaft to clamp and fix the chuck (1), and the diameter of the chuck (1) is greater than or equal to the diameter of the rotor.

2. The carbon fiber hoop winding tooling for a disc motor rotor according to claim 1 is characterized in that: The clamping structure comprises a locking block (6) and a locking nut (7); the locking block (6) is sleeved on an end of the first stepped shaft (51) away from the third stepped shaft (53); and the first stepped shaft (51) is threadedly connected to the locking nut (7) at an end close to the locking block (6).

3. The carbon fiber hoop winding tool for a disc motor rotor according to claim 1, characterized in that: The rotor comprises a rotor disk (2), magnetic steel (3) and a carbon fiber ring (4); the magnetic steel (3) is evenly clamped on the rotor disk (2); and the carbon fiber ring (4) is sleeved on the outer circumference of the rotor disk (2).

4. The carbon fiber hoop winding tooling for a disc motor rotor according to claim 3 is characterized in that: The height of the outer periphery of the chuck (1) protruding relative to the rotor disk (2) is equal to the thickness of the carbon fiber ring (4).

5. The carbon fiber hoop winding tool for a disc motor rotor according to claim 3, characterized in that: The rotor disk (2) comprises a base (21) and a plurality of support spokes (22), wherein the support spokes (22) are evenly arranged along the circumference of the base (21), the number of the magnetic steels (3) is the same as the number of the support spokes (22), and the magnetic steels (3) are clamped between adjacent support spokes (22).

6. The carbon fiber hoop winding tool for a disc motor rotor according to claim 5, characterized in that: Both sides of the support spoke (22) are provided with a first limiting portion (23), and both sides of the magnetic steel (3) are provided with a second limiting portion (31), and the first limiting portion (23) and the second limiting portion (31) are matched and clamped.

7. The carbon fiber hoop winding tool for a disc motor rotor according to claim 6, characterized in that: The first limiting portion (23) is concave and the second limiting portion (31) is convex, or the first limiting portion (23) is convex and the second limiting portion (31) is concave.

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