Hollow cup motor rotor framework

Abstract

The utility model discloses a coreless motor rotor framework, which belongs to the technical field of motor rotors and comprises a central column, the top and the bottom of the central column are fixedly connected with fixing discs respectively, the opposite surfaces of the two fixing discs are fixedly connected with a plurality of sliding plates at equal intervals, and inner cavities of the sliding plates are slidably connected with winding rods. A rotating disc is slidably connected to an inner cavity of the fixed disc, a plurality of moving blocks are hinged to an inner cavity of the rotating disc at equal intervals, and openings are formed in the outer surface of the circumference of the rotating disc at equal intervals. The coreless motor rotor skeleton can fix the coil end, and can tighten the coil on the outer surface of the rotor skeleton, thereby solving the problems that after the coil is wound on the outer side of the rotor skeleton, if the coil is not tightened and fixed, the coil is easy to loosen on the outer surface of the rotor skeleton, and the coil end cannot be positioned and fixed. And the problem that a coil in the winding framework is easy to loosen due to the fact that a worker cannot easily find a wire end of the coil in the later period is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotors, in particular to a coreless cup motor rotor frame. Background Art

[0002] The motor rotor frame refers to a structural component used to support and fix the motor rotor. The rotor is the rotating part of the motor, usually composed of an iron core and windings, and the motor rotor frame is designed to provide support and protection for the rotor while ensuring that it remains stable during rotation. During the manufacturing process of the existing motor rotor frame, when the coil is wound on the surface of the motor rotor, when the diameter of the coil is small and it is stuck in the fixing groove of the plastic rotor frame, the coil may move in the fixing groove, affecting the stability of the winding.

[0003] To solve the above problems, a Chinese patent discloses a plastic rotor frame with a fixing groove (Announcement No.: CN218102753U). In the public document, a fixing plate is provided, and a first annular groove and a first clamping groove are provided in the inner cavity of the fixing plate. An annular plate is fixed inside the first annular groove, and a second clamping groove is provided on the outer side of the annular plate. After the coil is fixed on the outer surfaces of the first clamping groove and the second clamping groove, the annular plate is squeezed to one side by a spring so that the second clamping groove and the first clamping groove are staggered, thereby squeezing the coil, ensuring the stability of the coil and preventing the coil from moving in the fixing groove.

[0004] The existing patent provides a solution to the above problem. However, after the coil is wrapped around the outside of the rotor frame, if the coil is not tightened and fixed, the coil is easy to loosen on the outer surface of the rotor frame, and the coil thread ends cannot be positioned and fixed, which can easily cause the coils inside the rotor frame to loosen. It is also not easy for the staff to find the coil thread ends later. Summary of the invention

[0005] The purpose of the utility model is to provide a hollow cup motor rotor frame, which can solve the problem that after the coil is wound around the outer side of the rotor frame, if the coil is not tightened and fixed, the coil is easy to loosen on the outer surface of the rotor frame, and the coil wire end cannot be positioned and fixed, which easily causes the coil inside the winding frame to loosen, and it is not easy for the staff to find the coil wire end later.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hollow cup motor rotor skeleton, comprising a center column, the top and bottom of the center column are respectively fixedly connected with fixed disks, and the opposite surfaces of the two fixed disks are equidistantly fixedly connected with a plurality of slides, the inner cavity of the slide is slidably connected with a winding rod, the inner cavity of the fixed disk is slidably connected with a rotating disk, the inner cavity of the rotating disk is equidistantly hinged with a plurality of moving blocks, the circumferential outer surface of the rotating disk is equidistantly provided with openings, the rotating disk is connected with the inner cavity of the slide through the openings, the moving block is fixedly connected with a moving spring on one side away from the opening, and the other side of the moving spring is fixedly connected to the inner cavity of the rotating disk.

[0007] Preferably, a movable tooth is fixedly connected to the upper end of the inner cavity of the rotating disk, and a fixed tooth is fixedly connected to the upper end of the outer surface of the fixed disk, and the outer edge of the movable tooth is meshed with the fixed tooth.

[0008] Preferably, a fixing rod is fixedly connected to the inner wall of the fixing disk, and the inner cavity of the winding rod is slidably connected to the outer surface of the fixing rod.

[0009] Preferably, a retaining spring is provided on the outer circumference of the fixing rod, one side of the retaining spring is fixedly connected to the inner wall of the fixing disk, and the other end of the retaining spring is fixedly connected to one side of the winding rod.

[0010] Preferably, auxiliary rods are fixedly connected to both sides of the winding rod, and a plurality of grooves are equidistantly formed on the outer surfaces of the winding rod and the auxiliary rod.

[0011] Preferably, a plurality of fixing grooves are equidistantly formed in the inner cavity of the fixing disk, and an extrusion block is slidably connected to the inner cavity of the fixing groove.

[0012] Preferably, the outer surface of the fixed disk is equidistantly rotatably connected with a plurality of bolts, one end of the bolt is fixedly connected with a screw rod, the screw rod is rotatably connected to the inner cavity of the fixed disk, and the outer surface of the screw rod is movably connected with a connecting block.

[0013] Preferably, one end of the connecting block is fixedly connected to an extrusion block, and the opposite surfaces of the extrusion block and the fixing groove are fixedly connected to rubber pads.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The present application sets a fixed disk and a rotating disk. After the coil is wound on the outer surfaces of multiple winding rods and auxiliary rods, the operator pulls the two groups of rotating disks away from each other, and the rotating disks slide along the inner wall of the fixed disk, so that the moving teeth in the inner cavity of the rotating disk disengage from the fixed teeth on the outer surface of the rotating disk. At this time, the operator can rotate the rotating disk until the moving block in the inner cavity of the rotating disk corresponds to the opening position of the fixed disk, and then push the two groups of rotating disks closer to each other so that the moving teeth are engaged and fixed with the fixed teeth. When the position of the moving block and the opening is on the same horizontal line, the moving block in the inner cavity of the rotating disk is pushed out by the compressed moving spring, and the moving block pushes the winding rod to slide in the inner cavity of the slide plate, so that the winding rod moves in the direction away from the center column, tightening the coil on the outer surface of the center column, which helps to improve the contact stability between the coil and the rotor frame.

[0016] 2. In this application, bolts are set, and the operator places the thread ends of the coils between the extrusion block and the fixed groove. Then, the bolts are turned to drive the screw rod to rotate. The connecting block rotates on the outer surface of the screw rod as the screw rod rotates. The connecting block drives the extrusion block to gradually approach the fixed groove, fixing the thread ends in the fixed disk to prevent the coils on the outer surface of the rotor frame from loosening, and also making it convenient for the staff to find the thread ends of the coils. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is the overall structural view of the utility model;

[0019] Figure 2 This is a bottom sectional view of the fixed disk structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 Structural view at A in the middle;

[0021] Figure 4 It is a partial structural sectional view of the utility model;

[0022] Figure 5 It is a cross-sectional view of the fixing plate of the utility model.

[0023] Description of reference numerals:

[0024] 1. Center column; 2. Fixed disk; 3. Slide plate; 4. Winding rod; 5. Extrusion block; 6. Bolt; 7. Rotating disk; 8. Moving block; 9. Moving spring; 10. Opening; 11. Moving teeth; 12. Fixed teeth; 13. Auxiliary rod; 14. Stop spring; 15. Groove; 16. Fixed rod; 17. Screw rod; 18. Connecting block; 19. Rubber pad. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 5 , the utility model provides a technical solution:

[0027] A hollow cup motor rotor skeleton, including a central column 1, the top and bottom of the central column 1 are respectively fixedly connected with a fixed disk 2, the opposite surfaces of the two fixed disks 2 are fixedly connected with a plurality of slide plates 3 at equal intervals, the inner cavity of the slide plate 3 is slidably connected with a winding rod 4, the inner cavity of the fixed disk 2 is slidably connected with a rotating disk 7, the inner cavity of the rotating disk 7 is equidistantly hinged with a plurality of moving blocks 8, the outer circumferential surface of the rotating disk 7 is equidistantly provided with openings 10, the rotating disk 7 is connected with the inner cavity of the slide plate 3 through the openings 10, the moving block 8 is fixedly connected with a moving spring 9 on the side away from the opening 10, and the moving spring 9 is fixedly connected with the moving spring 9. The other side of the spring 9 is fixedly connected to the inner cavity of the rotating disk 7, and a moving tooth 11 is fixedly connected to the upper end of the inner cavity of the rotating disk 7. A fixed tooth 12 is fixedly connected to the upper end of the outer surface of the fixed disk 2, and the outer edge of the moving tooth 11 is meshed with the fixed tooth 12. A fixed rod 16 is fixedly connected to the inner wall of the fixed disk 2, and the inner cavity of the winding rod 4 is slidably connected to the outer surface of the fixed rod 16. A stop spring 14 is provided on the circumferential outer side of the fixed rod 16, and one side of the stop spring 14 is fixedly connected to the inner wall of the fixed disk 2, and the other end of the stop spring 14 is fixedly connected to one side of the winding rod 4.

[0028] By adopting the above technical solution, when the operator wants to tighten and fix the coil on the outer surface of the rotor frame, after the coil is wound on the outer surfaces of multiple winding rods 4, the operator pulls the two groups of rotating disks 7 away from each other, and the rotating disk 7 slides along the inner wall of the fixed disk 2, so that the moving teeth 11 in the inner cavity of the rotating disk 7 are disengaged from the fixed teeth 12 on the outer surface of the rotating disk 7. At this time, the operator can rotate the rotating disk 7 until the moving block 8 in the inner cavity of the rotating disk 7 corresponds to the position of the opening 10 of the fixed disk 2, and then push the two groups of rotating disks 7 closer to each other, so that the moving teeth 11 are meshed and fixed with the fixed teeth 12. When the positions of the moving block 8 and the opening 10 are on the same horizontal line, the moving block 8 in the inner cavity of the rotating disk 7 is compressed. The movable spring 9 is pushed out and slides from the opening 10 to the inner cavity of the slide plate 3. The moving block 8 pushes the winding rod 4 to slide in the inner cavity of the slide plate 3 and gradually compresses the stop spring 14. The stop spring 14 can reduce the impact on the winding rod 4 and prevent the winding rod 4 from being damaged. The fixed rod 16 can assist the winding rod 4 to slide in the inner cavity of the slide plate 3 to avoid the winding rod 4 from deviating when sliding. The winding rod 4 moves in the direction away from the center column 1 to tighten the coil on the outer surface of the center column 1. The tightened coil can fit more closely on the winding rod 4 on the outer surface of the rotor frame, reducing the gap and looseness between the coil and the frame, which helps to improve the contact stability between the coil and the rotor frame and reduce the relative displacement caused by vibration or temperature change.

[0029] Specifically, Figure 4 As shown, auxiliary rods 13 are fixedly connected to both sides of the winding rod 4, and a plurality of grooves 15 are equidistantly formed on the outer surfaces of the winding rod 4 and the auxiliary rod 13.

[0030] By adopting the above technical solution, the auxiliary rod 13 can make the wound coil close to the winding rod 4, reducing the possibility of the coil loosening, and the groove 15 can assist the operator to wind the coil on the outer surface of the winding rod 4 and the auxiliary rod 13.

[0031] Specifically, Figure 1 , Figure 5 As shown, the inner cavity of the fixed disk 2 is equidistantly provided with a plurality of fixed grooves, the inner cavity of the fixed groove is slidably connected with an extrusion block 5, the outer surface of the fixed disk 2 is equidistantly rotatably connected with a plurality of bolts 6, one end of the bolt 6 is fixedly connected with a screw rod 17, the screw rod 17 is rotatably connected to the inner cavity of the fixed disk 2, the outer surface of the screw rod 17 is movably connected with a connecting block 18, one end of the connecting block 18 is fixedly connected with the extrusion block 5, and the opposite surfaces of the extrusion block 5 and the fixed groove are fixedly connected with a rubber pad 19.

[0032] By adopting the above technical solution, when the operator wants to fix the coil thread end in the fixed groove of the inner cavity of the fixed disk 2, the operator places the coil thread end between the extrusion block 5 and the fixed groove, and then rotates the bolt 6 so that the bolt 6 drives the screw rod 17 to rotate. The connecting block 18 rotates on the outer surface of the screw rod 17 as the screw rod 17 rotates. The connecting block 18 drives the extrusion block 5 to gradually approach the fixed groove to fix the thread end in the fixed disk 2. The extrusion block 5 and the rubber pad 19 on one side of the fixed groove can prevent the thread end from being excessively squeezed and damaged. The fixed thread end can prevent the coils on the outer surface of the rotor frame from loosening, and it is also convenient for the staff to find the coil thread end.

[0033] Working principle: When the operator wants to fix the coil thread end in the fixed groove of the inner cavity of the fixed disk 2, the operator places the coil thread end between the extrusion block 5 and the fixed groove, and then rotates the bolt 6 to make the bolt 6 drive the screw rod 17 to rotate. The connecting block 18 rotates on the outer surface of the screw rod 17 as the screw rod 17 rotates. The connecting block 18 drives the extrusion block 5 to gradually approach the fixed groove and fix the thread end in the fixed disk 2. After that, the operator winds the coil around the outer surfaces of the winding rod 4 and the auxiliary rod 13, and then the operator pulls the two sets of rotating disks 7 away from each other. The rotating disk 7 slides along the inner wall of the fixed disk 2, so that the moving teeth in the inner cavity of the rotating disk 7 11 disengages from the fixed teeth 12 on the outer surface of the rotating disk 7. At this time, the operator can rotate the rotating disk 7 until the moving block 8 in the inner cavity of the rotating disk 7 corresponds to the position of the opening 10 of the fixed disk 2, and then push the two groups of rotating disks 7 closer to each other, so that the moving teeth 11 are engaged and fixed with the fixed teeth 12. When the positions of the moving block 8 and the opening 10 are on the same horizontal line, the moving block 8 in the inner cavity of the rotating disk 7 is pushed out by the compressed moving spring 9, and slides from the opening 10 to the inner cavity of the slide plate 3. The moving block 8 pushes the winding rod 4 to slide in the inner cavity of the slide plate 3, so that the winding rod 4 moves in the direction away from the center column 1, and the coil on the outer surface of the center column 1 is tightened.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A coreless motor rotor frame, comprising a central column (1), characterized in that: The top and bottom of the central column (1) are respectively fixedly connected to fixed disks (2), and the opposite surfaces of the two fixed disks (2) are fixedly connected to a plurality of slide plates (3) at equal intervals. The inner cavity of the slide plate (3) is slidably connected to a winding rod (4), and the inner cavity of the fixed disk (2) is slidably connected to a rotating disk (7). The inner cavity of the rotating disk (7) is hinged with a plurality of moving blocks (8) at equal intervals. The outer circumferential surface of the rotating disk (7) is provided with openings (10) at equal intervals. The rotating disk (7) is connected to the inner cavity of the slide plate (3) through the openings (10), and a moving spring (9) is fixedly connected to the side of the moving block (8) away from the opening (10), and the other side of the moving spring (9) is fixedly connected to the inner cavity of the rotating disk (7).

2. The coreless motor rotor frame according to claim 1, characterized in that: The upper end of the inner cavity of the rotating disk (7) is fixedly connected with a moving tooth (11), the upper end of the outer surface of the fixed disk (2) is fixedly connected with a fixed tooth (12), and the outer edge of the moving tooth (11) is meshed with the fixed tooth (12).

3. The coreless motor rotor frame according to claim 2, characterized in that: A fixing rod (16) is fixedly connected to the inner wall of the fixing plate (2), and the inner cavity of the winding rod (4) is slidably connected to the outer surface of the fixing rod (16).

4. The coreless motor rotor frame according to claim 3, characterized in that: A stop spring (14) is provided on the outer circumference of the fixed rod (16), one side of the stop spring (14) is fixedly connected to the inner wall of the fixed disk (2), and the other end of the stop spring (14) is fixedly connected to one side of the winding rod (4).

5. The coreless motor rotor frame according to claim 4, characterized in that: Auxiliary rods (13) are fixedly connected to both sides of the winding rod (4), and a plurality of grooves (15) are equidistantly formed on the outer surfaces of the winding rod (4) and the auxiliary rod (13).

6. The coreless motor rotor frame according to claim 5, characterized in that: The inner cavity of the fixing plate (2) is provided with a plurality of fixing grooves at equal intervals, and the inner cavity of the fixing groove is slidably connected to an extrusion block (5).

7. The coreless motor rotor frame according to claim 6, characterized in that: The outer surface of the fixed disk (2) is equidistantly rotatably connected to a plurality of bolts (6), one end of each bolt (6) is fixedly connected to a screw rod (17), the screw rod (17) is rotatably connected to the inner cavity of the fixed disk (2), and the outer surface of the screw rod (17) is movably connected to a connecting block (18).

8. The coreless motor rotor frame according to claim 7, characterized in that: One end of the connection block (18) is fixedly connected to an extrusion block (5), and the surfaces opposite to the extrusion block (5) and the fixing groove are fixedly connected to a rubber pad (19).

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