Motor stator winding end part expander
By designing the end expander of the motor stator winding, the end of the motor stator winding is shaped by the articulated structure of the rotating shaft and the shaping plate, the problem of uneven component clearance in the motor assembly is solved and the good assembly effect of the motor is ensured.
Patent Information
- Application Number
- CN202323311083.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-04
AI Technical Summary
The inner circle of the rear end of the motor stator winding is irregular, resulting in uneven gaps between the components on the shaft and the stator winding, affecting the motor assembly effect.
Design a motor stator winding end expander, including a rotating shaft, a connecting member and a support member, through the rotation of the rotating shaft, the plastic shaping plate contacts the inner wall of the end of the motor stator winding, and the plastic shaping plate hinges and elastic rubber layer ensures the shape. The accuracy and safety of the process ensure that the inner circle dimensions meet design requirements.
Effectively shape the inner circle of the end of the stator winding of the motor to ensure uniform clearance of the components on the shaft after the motor is assembled and improve assembly effect.
Smart Images
Figure CN222215454U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor production, in particular to an end expander of a motor stator winding. Background Art
[0002] The motor usually includes a stator and a rotor. The stator includes a stator core and a coil winding wound on the stator core. The rotor includes a rotating shaft and a rotor core sleeved on the rotating shaft. A permanent magnet is provided on the outer edge of the rotor core. Motors are generally divided into DC motors and AC motors. For example, the patent document with the existing patent application number 201720770443.8 discloses a motor stator, a motor rotor and a motor, which has a good heat dissipation effect.
[0003] In actual production, when assembling the motor, the inner circle of the end of the motor stator winding is irregular after the wire is embedded. If the inner circle of the end is not shaped, the gap between the components on the shaft and the motor stator winding will be uneven after the motor is assembled, affecting the assembly effect of the motor. Utility Model Content
[0004] The purpose of the utility model is to overcome the above technical deficiencies and provide a motor stator winding end expander to solve the problem in the prior art that after the motor stator winding is embedded, the inner circle of the end is irregular, resulting in uneven gaps between the components on the rotating shaft and the motor stator winding after the motor is assembled.
[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a motor stator winding end expander, comprising:
[0007] A rotating shaft, wherein a limiting ring block is provided in the middle of the rotating shaft;
[0008] A connecting member, the connecting member includes a top seat, a base and a bearing, the top seat is sleeved on one end of the rotating shaft, and the top seat is rotatably connected to the rotating shaft by a thread, the base is rotatably sleeved on the other end of the rotating shaft, the bearing is sleeved on the rotating shaft, and the bearing is pressed between the limiting ring block and the base; and,
[0009] A support member, at least two of the support members are connected between the top seat and the base, the support member includes a shaping plate and a connecting plate, one end of the shaping plate is hinged to the top seat, one end of the connecting plate is hinged to the base, and the other end of the connecting plate is hinged to the other end of the shaping plate. When the support member extends into the end of the motor stator winding and the rotating shaft rotates to a preset position, at least two of the shaping plates are in conflict with the inner wall of the end of the motor stator winding.
[0010] In some embodiments, a locking block is provided at the other end of the rotating shaft, and a guide tube is also sleeved on the rotating shaft between the locking block and the base.
[0011] In some embodiments, a limiting boss is provided in the top seat, and a step that can interfere with the limiting boss is provided on the rotating shaft.
[0012] In some embodiments, a rotating handle is also fixedly provided at one end of the rotating shaft.
[0013] In some embodiments, a side surface of the shaping plate that contacts the inner wall of the motor stator winding end is arranged in an arc shape.
[0014] In some embodiments, an annular groove is provided on the base, and the bearing is disposed in the annular groove.
[0015] In some embodiments, an elastic rubber layer is provided on a side of the shaping plate that contacts the inner wall of the motor stator winding end.
[0016] In some embodiments, the number of the expansion members is 2-5.
[0017] In some embodiments, a cover shell is fixedly provided on the outside of the top seat.
[0018] In some embodiments, anti-slip ribs are provided on the outer wall of the cover shell.
[0019] Compared with the prior art, the utility model provides a motor stator winding end expander, in which a limiting ring block is provided in the middle of a rotating shaft, a top seat is sleeved on one end of the rotating shaft, and the top seat is rotatably connected to the rotating shaft through a thread, a base is rotatably sleeved on the other end of the rotating shaft, a bearing is sleeved on the rotating shaft, and the bearing is pressed between the limiting ring block and the base, at least two stretching parts are connected between the top seat and the base, the stretching parts include a shaping plate and a connecting plate, one end of the shaping plate is hinged to the top seat, one end of the connecting plate is hinged to the base, and the other end of the connecting plate is hinged to the other end of the shaping plate. When the stretching part extends into the end of the motor stator winding, the rotating shaft is rotated to drive at least two shaping plates to contact the inner wall of the end of the motor stator winding, so that the inner wall of the end of the motor stator winding can be shaped, so that the inner circle size of the inner wall of the end of the motor stator winding meets the design requirements, thereby ensuring a better motor assembly effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is another structural schematic diagram of a motor stator winding end expander provided by the utility model;
[0021] Figure 2 It is a structural schematic diagram of an embodiment of a motor stator winding end expander of the utility model;
[0022] Figure 3 It is an exploded schematic diagram of a motor stator winding end expander of the utility model;
[0023] Figure 4 The utility model is a cross-sectional view of a motor stator winding end expander. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0025] See also Figures 1 to 4 The utility model provides a motor stator winding end expander. The expander is mainly used to shape the inner wall of the motor stator winding end, so that the inner circle size of the motor stator winding end meets the design requirements, ensuring that after the motor is assembled, the gap between each component on the shaft and the stator winding is uniform, and ensuring the assembly effect of the motor.
[0026] In this specific embodiment, a motor stator winding end expander includes a rotating shaft 1, a connecting member 2 and a spreading member 3. A limiting ring block 11 is provided in the middle of the rotating shaft 1. The connecting member 2 includes a top seat 21, a base 22 and a bearing 23. The top seat 21 is sleeved on one end of the rotating shaft 1, and the top seat 21 is threadedly connected to the rotating shaft 1. The base 22 is rotatably sleeved on the other end of the rotating shaft 1. The bearing 23 is sleeved on the rotating shaft 1, and the bearing 23 is pressed between the limiting ring block 11 and the rotating shaft 1. The base 22; at least two of the support members 3 are connected between the top seat 21 and the base 22, the support member 3 includes a shaping plate 31 and a connecting plate 32, one end of the shaping plate 31 is hinged to the top seat 21, one end of the connecting plate 32 is hinged to the base 22, and the other end of the connecting plate 32 is hinged to the other end of the shaping plate 31. When the support member 3 extends into the end of the motor stator winding and the rotating shaft 1 rotates to a preset position, at least two of the shaping plates 31 are in conflict with the inner wall of the end of the motor stator winding.
[0027] In actual use, by extending the other end of the rotating shaft 1 into the end of the motor stator winding, holding the top seat 21 with one hand, and driving the rotating shaft 1 to rotate at the same time, the shaping plate 31 is driven to open and contact the inner wall of the motor stator winding end, and the inner wall of the motor stator winding end is shaped so that the inner circle size of the motor stator winding end meets the design requirements.
[0028] On the basis of the above scheme, a locking block 12 is provided at the other end of the rotating shaft 1, and a guide tube 13 is also sleeved on the rotating shaft 1 between the locking block 12 and the base 22. In this specific embodiment, the locking block 12 is provided on two hexagonal nuts at the other end of the rotating shaft 1, and the two hexagonal nuts are both threadedly rotatably connected with the other end of the rotating shaft 1.
[0029] On the basis of the above solution, a limiting boss 211 is provided in the top seat 21 , and a step 14 that can interfere with the limiting boss 211 is provided on the rotating shaft 1 .
[0030] It should be noted that the portion between the step 14 and the limiting ring block 11 is threadedly connected to the top seat 21. When the limiting boss 211 conflicts with the step 14, the multiple shaping plates 31 can remain in an expanded state, and the multiple shaping plates 31 can conflict with the inner wall of the end of the motor stator winding. The multiple shaping plates 31 expand the inner wall of the end of the motor stator winding and shape the inner wall of the end of the motor stator winding. The inner circle size of the inner wall of the end of the motor stator winding can meet the design requirements, ensuring that after the motor is assembled, the gap between the components on the rotating shaft and the stator winding is uniform.
[0031] On the basis of the above scheme, a rotating handle 4 is fixedly provided at one end of the rotating shaft 1. The rotating shaft 1 is driven to rotate by rotating the handle 4, which is convenient and labor-saving to operate.
[0032] On the basis of the above scheme, the side surface of the shaping plate 31 that contacts the inner wall of the motor stator winding end is arranged in an arc shape. It should be noted that the side surface is arranged in an arc shape, so that a plurality of shaping plates 31 can enclose a circular cross-section, contact the inner wall of the motor stator winding end, and shape the inner wall so that the inner circle size meets the design requirements.
[0033] Based on the above solution, the base 22 is provided with an annular groove 221, and the bearing 23 is arranged in the annular groove 221. Specifically, one end surface of the bearing 23 conflicts with the inner bottom wall of the annular groove 221, and the other end surface of the bearing 23 conflicts with the limiting ring block 11.
[0034] Based on the above solution, an elastic rubber layer is provided on the side of the shaping plate 31 that contacts the inner wall of the motor stator winding end. The elastic rubber layer can avoid damage to the motor stator winding wire when shaping the inner wall of the motor stator winding end.
[0035] In one embodiment, the number of the expansion members 3 is 2-5. In this specific embodiment, the number of the expansion members 3 is four, and the four expansion members 3 are arranged at equal intervals on the circumference of the top seat 21, and the four shaping plates 31 enclose and form a circular cross section.
[0036] On the basis of the above scheme, a cover 5 is fixedly provided on the outside of the top seat 21. The cover 5 covers the hinged part between the shaping plate 31 and the top seat 21. When in use, the cover 5 can be held by one hand and the rotating shaft 1 can be rotated by turning the handle 4 with the other hand.
[0037] On the basis of the above solution, anti-skid ribs are arranged on the outer wall of the cover shell 5. Specifically, by arranging the anti-skid ribs, it is possible to ensure that the operator holds the cover shell 5 tightly.
[0038] Compared with the prior art, the utility model provides a motor stator winding end expander, in which a limiting ring block is provided in the middle of a rotating shaft, a top seat is sleeved on one end of the rotating shaft, and the top seat is rotatably connected to the rotating shaft through a thread, a base is rotatably sleeved on the other end of the rotating shaft, a bearing is sleeved on the rotating shaft, and the bearing is pressed between the limiting ring block and the base, at least two stretching parts are connected between the top seat and the base, the stretching parts include a shaping plate and a connecting plate, one end of the shaping plate is hinged to the top seat, one end of the connecting plate is hinged to the base, and the other end of the connecting plate is hinged to the other end of the shaping plate. When the stretching part extends into the end of the motor stator winding, the rotating shaft is rotated to drive at least two shaping plates to contact the inner wall of the end of the motor stator winding, so that the inner wall of the end of the motor stator winding can be shaped, so that the inner circle size of the inner wall of the end of the motor stator winding meets the design requirements, thereby ensuring a better motor assembly effect.
[0039] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A motor stator winding end expander, characterized in that: include: A rotating shaft, wherein a limiting ring block is provided in the middle of the rotating shaft; A connecting member, the connecting member includes a top seat, a base and a bearing, the top seat is sleeved on one end of the rotating shaft, and the top seat is rotatably connected to the rotating shaft by a thread, the base is rotatably sleeved on the other end of the rotating shaft, the bearing is sleeved on the rotating shaft, and the bearing is pressed between the limiting ring block and the base; and, A support member, at least two of the support members are connected between the top seat and the base, the support member includes a shaping plate and a connecting plate, one end of the shaping plate is hinged to the top seat, one end of the connecting plate is hinged to the base, and the other end of the connecting plate is hinged to the other end of the shaping plate. When the support member extends into the end of the motor stator winding and the rotating shaft rotates to a preset position, at least two of the shaping plates are in conflict with the inner wall of the end of the motor stator winding.
2. The motor stator winding end expander according to claim 1, characterized in that: A locking block is arranged at the other end of the rotating shaft, and a guide tube is sleeved on the rotating shaft between the locking block and the base.
3. The motor stator winding end expander according to claim 1, characterized in that: A limiting boss is arranged in the top seat, and a step which can conflict with the limiting boss is arranged on the rotating shaft.
4. The motor stator winding end expander according to claim 1, characterized in that: A rotating handle is also fixedly provided at one end of the rotating shaft.
5. The motor stator winding end expander according to claim 1, characterized in that: The side surface of the shaping plate that contacts the inner wall of the motor stator winding end is arranged in an arc shape.
6. The motor stator winding end expander according to claim 1, characterized in that: An annular groove is provided on the base, and the bearing is arranged in the annular groove.
7. The motor stator winding end expander according to claim 1, characterized in that: An elastic rubber layer is provided on a side of the shaping plate that contacts the inner wall of the motor stator winding end.
8. The motor stator winding end expander according to claim 1, characterized in that: The number of the expansion members is 2-5.
9. The motor stator winding end expander according to claim 1, characterized in that: A cover shell is fixedly arranged on the outside of the top seat.
10. The motor stator winding end expander according to claim 9, characterized in that: Anti-slip ribs are arranged on the outer wall of the cover shell.