A concentricity positioning structure for motor rotor and stator

Abstract

The present invention discloses a concentricity positioning structure of a motor rotor and a stator, comprising: a support portion, the upper end of which supports a motor portion, the motor portion comprising a shell body, a rotor body and a rotating shaft; a clamping shaft, which is provided with a plurality of groups, the plurality of groups of clamping shafts being arranged in a circumferential distribution on the support portion, and used to clamp the shell body; a clamping component, which is provided with a plurality of groups, the plurality of groups of clamping components corresponding to the plurality of groups of clamping shafts, and the two are arranged in a matching manner, the clamping component being used to support the rotor body and the rotating shaft; an operating frame, which is sleeved on the outside of the plurality of groups of clamping components, and is used to squeeze the clamping component, so that the rotor body and the rotating shaft are arranged coaxially with the shell body. The present invention achieves positioning by cooperating the operating frame with the plurality of groups of clamping components, that is, the operating frame squeezes the outside of the oblique hook, pushes the plurality of groups of clamping components inward, and squeezes the inner end of the support plate with the rotating shaft, so that the rotating shaft and the support portion are coaxial.

Description

Technical Field

[0001] The invention relates to the technical field of motor installation, and in particular to a concentricity positioning structure for a motor rotor and a stator. Background Art

[0002] The installation process of the motor involves the precise assembly of multiple components, during which all the installed parts are checked to ensure that they are intact and meet the specifications, and to ensure that the motor equipment is kept clean, dry, and away from shock or vibration sources. The most important thing is the installation of the stator and rotor. The rotor needs to be stably lifted or placed outside the stator bore, ensuring that the front and rear of the rotor and stator are correct, and the appropriate shaft is inserted through the stator bore (if necessary), and the appropriate lifting point is adjusted. During the process of lifting the rotor, the rotor should be supported by a dedicated person at both ends to monitor the gap between the rotor and the stator, ensure that the gap is uniform all around, and slowly insert the rotor into the stator bore until the stator, rotor, and core are aligned.

[0003] If there is a collision between the stator and the rotor during the installation process, this is a problem that needs to be taken seriously. Once a collision is found between the stator and the rotor, the installation process should be stopped immediately. It is necessary to check the appearance of the stator and the rotor to see if there are obvious scratches, dents or deformations. These damages may affect the balance, air gap uniformity and electromagnetic performance of the motor. In severe cases, the collision may cause the insulation layer between the stator winding and the rotor to break, causing a short circuit, thereby damaging the motor and even causing safety accidents such as fire.

[0004] Therefore, when installing the stator and rotor, the importance of coaxial cable installation is self-evident, as it is directly related to the performance, stability, life and safety of the motor. Summary of the invention

[0005] The object of the present invention is to provide a concentricity positioning structure for a motor rotor and a stator to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a motor rotor and stator concentricity positioning structure, comprising:

[0007] A support portion, the upper end of which supports a motor portion, wherein the motor portion includes a housing body, a rotor body and a rotating shaft;

[0008] The clamping shafts are provided in a plurality of groups, and the plurality of groups of the clamping shafts are arranged on the support portion in a circumferential distribution, and are used to clamp the housing body;

[0009] The clamping parts are provided in several groups, and the clamping parts in several groups correspond to the clamping shafts in several groups, and the two are arranged in a matching manner, and the clamping parts are used to support the rotor body and the rotating shaft;

[0010] The operating frame is sleeved on the outer sides of the plurality of groups of the clamping components and is used to squeeze the clamping components so that the rotor body and the rotating shaft are coaxially arranged with the shell body.

[0011] Furthermore, the support part includes a base and a stand fixed on the base, the stand is provided with a second gear for rotation inside, a drive box is fixed on the base, a first gear meshing with the second gear is installed in the drive box, and a motor is provided in the drive box for driving the first gear to rotate;

[0012] The gear 2 is provided with a plurality of circumferentially distributed and inclined inclined grooves 1, the lower end of the gear 2 is provided with a plurality of circumferentially distributed inclined grooves 1 corresponding to the inclined groove 1, the plurality of circumferentially distributed inclined grooves 1 overlap with the plurality of circumferentially distributed inclined grooves 1, and the plurality of circumferentially distributed inclined grooves 1 are overlapped ...

[0013] Furthermore, the clamping shaft has a bent portion from bottom to top, and the bent portion is used to clamp the shell body.

[0014] Furthermore, the clamping shaft is provided with a dividing groove from top to bottom, and the clamping component includes a sleeve, a support plate and an oblique hook. The sleeve is sleeved on the clamping shaft, and the inner wall of the sleeve and the outer wall of the clamping shaft are rough and have friction. The support plate passes through the sleeve horizontally, and the support plate is clamped in the dividing groove. The oblique hook is fixed to the outer end of the support plate. When the operating frame is squeezed by the oblique hook, the support plate moves toward the axis of the support part, and the inner end of the support plate is used for squeezing with the rotating shaft.

[0015] Furthermore, the outer end of the oblique hook is gradually inclined inward from bottom to top, the outer wall of the oblique hook is smoothly arranged, the operating frame is a thin-walled ring, and the diameter of the lower end is greater than the diameter of the upper end.

[0016] Furthermore, the separation groove of the clamping shaft is arranged to fit with two sides of the support plate, and the inner edge of the support plate is rounded.

[0017] Furthermore, a clamping opening is provided on the upper side of the support plate near the inner end, and a pulling portion for squeezing the rotating shaft is provided in the clamping opening, and the pulling portion includes a support block and an elastic band;

[0018] A support block is clamped in the clamping opening of each support plate, and two elastic bands are fixed between the support block and the support block in the extension direction of the support block, and the two elastic bands clamp the rotating shaft.

[0019] Furthermore, the positions where the elastic bands with different directions are fixed on the support block are arranged in upper, middle and lower order respectively, and the support plate is stretched outward so that the elastic bands squeeze and clamp the rotating shaft.

[0020] Furthermore, the outer shell body has a stator inside, the rotating shaft passes through the rotor body and the two are fixed, and the rotor body is sleeved into the outer shell body and the stator.

[0021] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention cooperates the operating frame with a plurality of groups of clamping components, that is, the operating frame presses the outer side of the oblique hook, pushes the plurality of groups of clamping components inward, and the inner end of the support plate presses the rotating shaft, so that the rotating shaft and the supporting part are coaxial, thereby achieving positioning;

[0022] In addition, by pushing the operating frame downward, the oblique hook and the sleeve generate an inward force on the support plate, and the support plate can move inward to squeeze the rotating shaft to achieve support. When the electric hoist lowers the rotor body and the rotating shaft, since the sleeve can move along the clamping shaft, the operating frame pushes downward in the direction of movement of the rotor body and the rotating shaft, which is easier to control and ensures that the rotor body does not contact the stator. The operating frame can also be pushed downward when it is taken out during maintenance, which can save the operator's physical strength to the greatest extent, and it is easier to apply pressure by pushing downward;

[0023] By lifting the operating frame upward, the oblique hook and the support plate tend to move outward, so that the elastic belt is squeezed against the rotating shaft to limit the rotating shaft and avoid position deviation. The setting of the elastic belt can also avoid damage to the rotating shaft. The installation or disassembly uses an upward force to limit the rotating shaft, which can be adjusted according to personal habits. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a support portion of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the lower end of the second gear of the present invention;

[0028] Figure 4 It is a schematic diagram of the clamping shaft structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the clamping shaft and the clamping component of the present invention;

[0030] Figure 6 It is a schematic diagram of the clamping structure of the clamping component and the rotating shaft of the present invention;

[0031] Figure 7 It is a schematic diagram of the pulling portion structure of the present invention;

[0032] Figure 8 It is a schematic diagram of the explosion structure of the pulling portion of the present invention.

[0033] In the figure: 1. supporting part; 11. base; 12. stand; 13. driving box; 14. slide groove; 15. side groove; 16. gear 1; 17. gear 2; 18. inclined groove 1; 181. inclined groove 2; 2. clamping shaft; 21. block 1; 22. block 2; 23. partition groove; 3. clamping component; 31. sleeve; 32. support plate; 321. clamping mouth; 33. oblique hook; 34. pulling part; 341. support block; 342. elastic band; 4. motor part; 41. shell body; 42. rotor body; 43. rotating shaft; 5. operating frame. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-8 The present invention provides a technical solution: a motor rotor and stator concentricity positioning structure, comprising:

[0036] The support part 1 supports the motor part 4 at its upper end. The motor part 4 includes a shell body 41, a rotor body 42 and a rotating shaft 43. It should be noted that the installation of the motor includes a shell body 41 and a stator installed in the shell body 41. The rotor body 42 and the rotating shaft 43 are installed in the stator, and the rotor body 42 cannot be in contact with the stator. The stator has been installed in the shell body 41 mentioned in the text. During the current installation, during the process of hanging the rotor body 42, a dedicated person must hold the two ends of the rotor body 42 to monitor the gap between the rotor body 42 and the stator to ensure that the gap is uniform all around. This increases the labor cost and easily causes the rotor body 42 to contact or collide with the stator. It should also be noted that due to the relatively large weight of the rotor body 42, if it contacts the stator, a certain degree of collision has actually occurred;

[0037] The clamping shafts 2 are provided with a plurality of groups, and the plurality of groups of clamping shafts 2 are arranged on the support portion 1 in a circumferential distribution, and are used to clamp the outer shell body 41. After the position of the outer shell body 41 is limited, when the installed rotor body 42 moves downward and the rotor body 42 does not deviate, the outer shell body 41 is limited to improve a certain degree of accuracy;

[0038] The clamping parts 3 are provided in several groups, and the several groups of clamping parts 3 correspond to the several groups of clamping shafts 2 one by one, and the two are arranged in a matching manner. The clamping parts 3 are used to support the rotor body 42 and the rotating shaft 43, and are used to make the rotor body 42 and the rotating shaft 43 coaxially arranged with the shell body 41;

[0039] The operating frame 5 is sleeved on the outside of several groups of clamping parts 3, and is used to squeeze the clamping parts 3 so that the rotor body 42 and the rotating shaft 43 are coaxially arranged with the shell body 41, and push or pull the clamping parts 3 so that the clamping parts 3 limit the rotor body 42 and the rotating shaft 43.

[0040] The support part 1 includes a base 11 and a stand 12 fixed on the base 11. The stand 12 is provided with a second gear 17 for rotation inside. A driving box 13 is fixed on the base 11. A gear 16 meshing with the second gear 17 is installed in the driving box 13. The driving box 13 has a motor for driving the first gear 16 to rotate. When the first gear 16 rotates, the second gear 17 is also driven to rotate, thereby realizing a preliminary clamping movement.

[0041] In order to make the clamping shaft 2 produce a clamping movement and to make several clamping shafts 2 move to the same degree, the axis of the shell body 41 is limited to coincide with the axis of the support part 1, and a plurality of circumferentially distributed and inclined inclined grooves 18 are provided on the gear 2 17. A plurality of circumferentially distributed and inclined inclined grooves 181 corresponding to the inclined groove 18 are provided at the lower end of the gear 2 17. The inclined groove 2 181 coincides with the inclined groove 18, and the area of ​​the inclined groove 2 181 is larger than the inclined groove 18. A plurality of circumferentially distributed slide grooves 14 are provided at the upper end of the stand 12, and the slide groove 14 points to the axis of the stand 12. Side grooves 15 are provided on both sides of the slide groove 14, and the side grooves 15 are clamped on the stand 12. A clamping block 22 is integrally provided at the lower end of the clamping shaft 2, and the clamping block 22 is clamped in the inclined groove 2 181. The clamping shaft 2 extends upward from the inclined groove 18 and passes through the inclined groove 18. Figure 2 As shown, the slide groove 14 and the inclined groove 18 have an overlapping portion, and the clamping shaft 2 extends upward from the overlapping portion of the two. After the inclined groove 18 is rotated, the overlapping portion will change, so that the clamping shaft 2 is pushed and the clamping shaft 2 moves along the slide groove 14, so that the clamping shaft 2 clamps the shell body 41. Blocks 21 are fixed on both sides of the clamping shaft 2. The block 21 is clamped in the side groove 15 and is used to limit the clamping shaft 2 so that the clamping shaft 2 can be set vertically without falling. In addition, the clamping shaft 2 will not rotate and can only move horizontally along the slide groove 14.

[0042] The clamping shaft 2 has a bent portion from bottom to top, and the bent portion is used to clamp the shell body 41. Only the bent portion clamps the shell body 41, and the upper end portion can avoid contact with the shell body 41, making it easy to take and place the shell body 41.

[0043] like Figure 4 As shown, the clamping shaft 2 is provided with a separation groove 23 from top to bottom, and the clamping component 3 includes a sleeve 31, a support plate 32 and an oblique hook 33. The sleeve 31 is sleeved on the clamping shaft 2, and the inner wall of the sleeve 31 and the outer wall of the clamping shaft 2 are rough and have friction. When the operating frame 5 is squeezed downward, the sleeve 31 can be prevented from moving, and only the support plate 32 is pushed inward to limit the rotating shaft 43. The support plate 32 passes through the sleeve 31 horizontally, and the support plate 32 is clamped in the separation groove 23, so that the direction of the support plate 32 is fixed, and its inner end can only face the axis of the support part 1 to avoid deviation during the pushing process. The oblique hook 33 is fixed at the outer end of the support plate 32. When the operating frame 5 and the oblique hook 33 are squeezed, the support plate 32 moves toward the axis of the support part 1. The inner end of the support plate 32 is used to squeeze with the rotating shaft 43 to fix the axial position of the rotating shaft 43, ensure the gap between the rotor body 42 and the stator, and ensure that the gap around is uniform.

[0044] like Figure 4As shown, the outer end of the oblique hook 33 is gradually inclined inward from bottom to top, the outer wall of the oblique hook 33 is smoothly set, the operating frame 5 is a thin-walled ring, and the diameter of the lower end is larger than the diameter of the upper end. When the operating frame 5 cooperates with the oblique hook 33, the oblique hook 33 can be squeezed, so that the oblique hook 33 has the effect of pushing inward or outward.

[0045] In order to prevent the position of the support plate 32 from being offset or the direction from being deviated, the dividing groove 23 of the clamping shaft 2 is arranged to fit the two sides of the support plate 32, and the inner end edge of the support plate 32 is rounded, wherein the inner end of the support plate 32 is used for squeezing the rotating shaft 43, and the rounded edge prevents the rotating shaft 43 from being damaged by the squeezing action of the support plate 32.

[0046] A clamping opening 321 is provided on the upper side of the support plate 32 near the inner end. A pulling portion 34 for squeezing the rotating shaft 43 is provided in the clamping opening 321. The pulling portion 34 includes a supporting block 341 and an elastic band 342.

[0047] A support block 341 is clamped in the clamping opening 321 of each support plate 32, and two elastic bands 342 are fixed between the support block 341 and the support block 341 in the extension direction of the support block 341. The two elastic bands 342 clamp the rotating shaft 43, wherein the elastic bands 342 act as a sleeve on the rotating shaft 43, so that the elastic bands 342 can clamp the rotating shafts 43 of different sizes. In addition, the use of the elastic bands 342 can also avoid damage to the rotating shaft 43.

[0048] The elastic bands 342 with different directions are fixed on the support block 341 in an upper, middle and lower arrangement respectively, and the support plate 32 is stretched outward so that the elastic bands 342 squeeze and clamp the rotating shaft 43. It should be noted that the inner ends of the multiple groups of support plates 32 are in the same horizontal plane, but the elastic bands 342 are arranged in an upper, middle and lower arrangement, so that the elastic bands 342 can be arranged in an upper, middle and lower arrangement to cover the rotating shaft 43 and avoid interference between the elastic bands 342.

[0049] like Figure 2 As shown, during the installation of the motor, various components need to be matched. The outer shell body 41 has a stator inside, the rotating shaft 43 passes through the rotor body 42 and the two are fixed, and the rotor body 42 is sleeved into the outer shell body 41 and the stator. It should be noted that this step is a local step in the motor installation process, and is not a complete step for the entire motor installation. The key step is to sleeve the rotor body 42 with the outer shell body 41 with the stator. It should also be noted that the shaft neck of the rotor body 42 is wrapped and protected to prevent damage during transportation. The front and rear sides of the rotor body 42 corresponding to the stator are identified to ensure the correct installation direction, and the rotor body 42 is stably suspended outside the stator bore, ready to be inserted into the stator.

[0050] The working principle of the present invention is as follows: the motor in the driving box 13 is rotated to control the second gear 17 to rotate, so that the position of the inclined slot 18 is changed, and the clamping shaft 2 is pushed to move the clamping shaft 2 in the slide slot 14, so as to control the outer shell body 41 located on the support part 1 to be clamped by a plurality of clamping shafts 2, so as to keep the outer shell body 41 fixed, so that the rotor body 42 and the rotating shaft 43 moving from top to bottom can cooperate with the outer shell body 41, and avoid contact during cooperation;

[0051] When the electric hoist lifts the rotor body 42 and the rotating shaft 43 and cooperates with the outer shell body 41, the rotor body 42 and the rotating shaft 43 are moved to the upper end of the outer shell body 41 and are located between the several groups of clamping parts 3. It should be noted that when the operating frame 5 is located at the upper end of the several groups of clamping parts 3, the support plate 32 in the clamping parts 3 can move laterally outward, so that the rotor body 42 can pass downward through the several groups of clamping parts 3, and then the operating frame 5 is coordinated with the several groups of clamping parts 3, that is, the operating frame 5 squeezes the outer side of the oblique hook 33, and pushes the several groups of clamping parts 3 inward, so that the inner end of the support plate 32 is squeezed with the rotating shaft 43. Since multiple groups of support plates 32 are clamped in the dividing groove 23, when the operating frame 5 is squeezed downward, the support plate 32 can squeeze the rotating shaft 43, and make the rotating shaft 43 coaxial with the support part 1 to achieve positioning, and under the action of the electric hoist, the rotor body 42 and the rotating shaft 43 are downwardly matched with the outer shell body 41.

[0052] In addition, when the operating frame 5 is pushed downward, the operating frame 5 has a downward effect, and the oblique hook 33 and the sleeve 31 generate an inward force on the support plate 32, so that the support plate 32 can move inward and squeeze the rotating shaft 43 to achieve support. When the electric hoist puts the rotor body 42 and the rotating shaft 43 downward, since the sleeve 31 can move along the clamping shaft 2, the support plate 32 can also move with it, and the direction of the downward pushing action on the operating frame 5 is the movement direction of the rotor body 42 and the rotating shaft 43, which is easier to control and ensure that the rotor body 42 does not contact the stator. When the rotor body 42 and the rotating shaft 43 are taken out during the maintenance process, the operating frame 5 can also be pushed downward, which can save the operator's physical strength to the greatest extent, and it is easier to apply pressure when pushing downward;

[0053] The other method is provided with a pulling portion 34, and the supporting block 341 of the pulling portion 34 is matched with the supporting plate 32, and the elastic band 342 is sleeved with the rotating shaft 43, and then the supporting plate 32 is pulled outward, and the inclined inner side of the oblique hook 33 is pressed against the outer side of the operating frame 5, and the operating frame 5 is lifted upward to make the oblique hook 33 and the supporting plate 32 tend to move outward, so that the elastic band 342 is pressed against the rotating shaft 43, and the rotating shaft 43 can be limited to avoid position deviation. The setting of the elastic band 342 can also avoid damage to the rotating shaft 43. The installation or disassembly adopts the upward force to limit the rotating shaft 43, which can be adjusted according to personal habits;

[0054] It should also be noted that the directions of the support plate 32, the oblique hook 33, the operating frame 5 and the pulling portion 34 can be set in opposite directions, so that the pulling portion 34 can be tightened by pushing downwards, and the support plate 32 can be squeezed upwards, which is more convenient to adjust.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor rotor and stator concentricity positioning structure, characterized in that: include: A support portion (1), the upper end of which supports a motor portion (4), wherein the motor portion (4) comprises a housing body (41), a rotor body (42) and a rotating shaft (43); A plurality of clamping shafts (2) are provided, wherein the plurality of clamping shafts (2) are arranged on the support portion (1) in a circumferentially distributed manner and are used to clamp the housing body (41); The clamping components (3) are provided in a plurality of groups, the plurality of groups of the clamping components (3) correspond to the plurality of groups of the clamping shafts (2) in a one-to-one manner, and the two are arranged in a coordinated manner, and the clamping components (3) are used to support the rotor body (42) and the rotating shaft (43); An operating frame (5) is sleeved on the outside of the plurality of groups of the clamping components (3) and is used to squeeze the clamping components (3) so that the rotor body (42) and the rotating shaft (43) are coaxially arranged with the housing body (41); The clamping shaft (2) has a bent portion from bottom to top, and the bent portion is used to clamp the housing body (41); The clamping shaft (2) is provided with a separation groove (23) from top to bottom. The clamping component (3) comprises a sleeve (31), a support plate (32) and an oblique hook (33). The sleeve (31) is sleeved on the clamping shaft (2), and the inner wall of the sleeve (31) and the outer wall of the clamping shaft (2) are both rough and have friction. The support plate (32) penetrates the sleeve (31) transversely, and the support plate (32) is clamped in the separation groove (23). The oblique hook (33) is fixed to the outer end of the support plate (32). When the operating frame (5) and the oblique hook (33) are pressed, the support plate (32) moves toward the axis of the support portion (1), and the inner end of the support plate (32) is used to be pressed against the rotating shaft (43).

2. The motor rotor and stator concentricity positioning structure according to claim 1, characterized in that: The support portion (1) comprises a base (11) and a stand (12) fixed on the base (11); a second gear (17) is rotatably provided inside the stand (12); a drive box (13) is fixed on the base (11); a first gear (16) meshing with the second gear (17) is installed inside the drive box (13); and a motor is provided inside the drive box (13) for driving the first gear (16) to rotate; The gear 2 (17) is provided with a plurality of circumferentially distributed and inclined inclined grooves 1 (18), the lower end of the gear 2 (17) is provided with a slanted groove 2 (181) corresponding to the slanted groove 1 (18), the slanted groove 2 (181) overlaps with the slanted groove 1 (18), and the area of ​​the slanted groove 2 (181) is larger than that of the slanted groove 1 (18), the upper end of the stand (12) is provided with a plurality of slidable grooves (14) distributed in a circumferential manner, and the slidable grooves (14) point to the axis of the stand (12), and the slidable grooves (14) are provided at the upper end of the stand (12). ) are provided with side grooves (15) on both sides, the side grooves (15) are clamped on the stand (12), the lower end of the clamping shaft (2) is integrally provided with a clamping block 2 (22), the clamping block 2 (22) is clamped in the inclined groove 2 (181), the clamping shaft (2) extends upward from the inclined groove 1 (18) and passes through the inclined groove 1 (18), and the clamping shaft (2) is fixed with a clamping block 1 (21) on both sides, the clamping block 1 (21) is clamped in the side groove (15), and is used to limit the clamping shaft (2).

3. The motor rotor and stator concentricity positioning structure according to claim 1, characterized in that: The outer end of the oblique hook (33) is gradually inclined inward from bottom to top, the outer wall of the oblique hook (33) is smoothly arranged, and the operating frame (5) is a thin-walled ring, and the diameter of the lower end is larger than the diameter of the upper end.

4. The motor rotor and stator concentricity positioning structure according to claim 1, characterized in that: The separation groove (23) of the clamping shaft (2) is arranged to fit on both sides of the support plate (32), and the inner end edge of the support plate (32) is arranged to be rounded.

5. The motor rotor and stator concentricity positioning structure according to claim 1, characterized in that: The support plate (32) is provided with a clamping opening (321) on the upper side close to the inner end, and a pulling portion (34) for squeezing the rotating shaft (43) is provided in the clamping opening (321), and the pulling portion (34) comprises a support block (341) and an elastic band (342); A support block (341) is clamped in the clamping opening (321) of each support plate (32), and two elastic bands (342) are fixed between the support block (341) and the support block (341) in the direction in which the support block (341) extends, and the two elastic bands (342) clamp the rotating shaft (43).

6. The motor rotor and stator concentricity positioning structure according to claim 5, characterized in that: The positions where the elastic bands (342) with different directions are fixed on the support block (341) are arranged in upper, middle and lower order respectively, and the support plate (32) is stretched outwards so that the elastic bands (342) squeeze and clamp the rotating shaft (43).

7. The motor rotor and stator concentricity positioning structure according to claim 1, characterized in that: The outer shell body (41) has a stator inside, the rotating shaft (43) passes through the rotor body (42) and the two are fixed, and the rotor body (42) is sleeved into the outer shell body (41) and the stator.

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