Motor rotor magnetic steel pasting and positioning structure

Abstract

The utility model discloses a motor rotor magnetic steel pasting positioning structure, which comprises a top plate and a plurality of upper positioning plates equidistantly mounted on the outer wall of the lower end of the top plate, a bottom plate is arranged on the lower side of the top plate, a plurality of lower positioning plates are equidistantly and fixedly connected in the outer wall of the upper end of the bottom plate, and a magnetic steel main body is clamped between the top plate and the bottom plate. A plurality of clamping grooves are formed in the outer wall of the upper end and the outer wall of the lower end of the magnetic steel body at equal intervals, and a positioning pin penetrating upwards is arranged on the outer wall of the lower end of the bottom plate. The upper positioning plate and the lower positioning plate can be respectively taken down through the through hole a and the through hole b for replacement, and are replaced by the upper positioning plate and the lower positioning plate with the sizes of the clamping groove gaps in the magnetic steel main body, so that the clamping groove gaps of different magnetic steels can be effectively controlled, and the universality of equipment is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field related to motor rotors, and particularly relates to a magnetic steel pasting and positioning structure for a motor rotor. Background Technique

[0002] The pasting and positioning structure of the motor rotor magnetic steel is an important component to ensure the efficient operation of the motor. Especially in brushless DC motors and permanent magnet synchronous motors, during the bonding process of the motor rotor magnetic steel, affected by the flatness and the uniformity of the magnetic steel gap, the positioning accuracy and performance of the motor will be affected. Therefore, through the design of the auxiliary bonding and positioning tooling structure, the magnetic steel can be quickly positioned. However, when the upper and lower positioning plates limit the installation position of the magnetic steel, the upper and lower positioning plates cannot adjust and control the magnetic steel gap for adjustment, resulting in limited flexibility in the installation of the magnetic steel. Content of the Utility Model

[0003] The purpose of the utility model is to provide a magnetic steel pasting and positioning structure for a motor rotor, so as to solve the problem that the upper and lower positioning plates cannot adjust and control the magnetic steel gap for adjustment as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A magnetic steel pasting and positioning structure for a motor rotor, including a top plate and a plurality of upper positioning plates equidistantly installed on the outer wall of the lower end of the top plate;

[0005] A bottom plate is arranged on the lower side of the top plate;

[0006] A plurality of lower positioning plates are equidistantly and fixedly connected inside the outer wall of the upper end of the bottom plate;

[0007] A magnetic steel main body is clamped between the top plate and the bottom plate. A plurality of card slots are equidistantly opened on the outer walls of the upper and lower ends of the magnetic steel main body. A positioning pin is arranged on the outer wall of the lower end of the bottom plate and penetrates upward;

[0008] A through opening a is opened inside the outer wall of the lower end of the top plate to separate the upper positioning plate from the top plate. A through opening b with an upward opening is opened inside the outer wall of the upper end of the bottom plate to separate the lower positioning plate from the bottom plate. Gaskets a are arranged on the outer walls of the left and right ends of the upper positioning plate and the lower positioning plate to increase the lateral length of the upper positioning plate and the lower positioning plate. Gaskets b are arranged on the outer walls of the lower end of the upper positioning plate and the upper end of the lower positioning plate to increase the vertical length of the upper positioning plate and the lower positioning plate.

[0009] Preferably, a plurality of threaded rods penetrating upward through the top plate are equidistantly and fixedly connected to the outer wall of the upper end of the upper positioning plate. Nuts are threadedly connected to one ends of the plurality of threaded rods to limit the position of the upper positioning plate.

[0010] Preferably, a plurality of fixing screws are equidistantly arranged on the circular outer wall of the bottom plate and penetrate inwardly into the lower positioning plate to limit the position of the lower positioning plate, and threaded holes for screwing the fixing screws are provided between the lower positioning plate and the interior of the bottom plate.

[0011] Preferably, a threaded groove a with a downward opening is provided on the lower outer wall of the upper positioning plate, and a threaded block a that is screwed with the threaded groove a is fixedly connected to the upper outer wall of the gasket b to limit the position of the gasket b.

[0012] Preferably, threaded grooves b with downward openings are provided inside the centers of the lower outer walls of the gasket b, and threaded grooves c are provided inside the left and right outer walls of the upper positioning plate and the lower positioning plate.

[0013] Preferably, a threaded block b that is screwed with the threaded groove c is fixedly connected to one side of each of the plurality of gaskets a close to the upper positioning plate and the lower positioning plate to limit the position of the gasket a, and a threaded groove d is provided inside the right outer wall of the gasket a.

[0014] Preferably, an inner ring is provided on the circular inner wall of the magnet main body to limit the bonding position of the magnet main body, and a rocker is fixedly connected to the lower outer wall of the positioning pin.

[0015] Preferably, a limiting plate is fixedly connected to the center of the upper outer wall of the bottom plate to clamp and limit the position of the inner ring, and the magnet main body and the inner ring are fixedly connected by an adhesive method.

[0016] Compared with the prior art, the present utility model provides a motor rotor magnet pasting and positioning structure, which has the following beneficial effects:

[0017] By providing the through hole a, the through hole b, the gasket a and the gasket b, when the upper positioning plate and the lower positioning plate limit the installation position of the magnet main body, the upper positioning plate and the lower positioning plate can be removed and replaced respectively through the through hole a and the through hole b, and replaced with the upper positioning plate and the lower positioning plate with the slot gap size required in the magnet main body, which can effectively control the slot gaps of different magnets, enhance the versatility of the device, and at the same time, an appropriate amount of gasket a and gasket b can be added to the lower end or the left and right ends of the upper positioning plate and the lower positioning plate according to the vertical length and the horizontal length of the slot, so that the sizes of the upper positioning plate and the lower positioning plate are adjustable, and the slot gap size between the magnet main bodies can be flexibly adjusted before inserting the magnet main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a motor rotor magnet pasting and positioning structure of the present utility model.

[0019] Figure 2 It is a schematic front sectional structural diagram of a motor rotor magnet pasting and positioning structure of the present utility model.

[0020] Figure 3 This is a schematic structural diagram of the split state of a magnetic steel pasting and positioning structure for a motor rotor of the present utility model.

[0021] Figure 4 This is a partial structural schematic diagram of the front view section of the upper positioning plate area of the present utility model.

[0022] Figure 5 This is a partial structural schematic diagram of the front view section of the lower positioning plate area of the present utility model.

[0023] Figure 6 This is a partial structural schematic diagram of the front view of the upper positioning plate area of the present utility model.

[0024] Figure 7 This is a partial structural schematic diagram of the gasket b area of the present utility model.

[0025] Figure 8 This is a partial structural schematic diagram of the gasket a area of the present utility model.

[0026] In the figure: 1, positioning pin; 2, top plate; 3, upper positioning plate; 4, main body of magnetic steel; 5, lower positioning plate; 6, bottom plate; 7, inner ring; 8, rocker; 9, limit plate; 10, card slot; 11, through port a; 12, threaded rod; 13, nut; 14, threaded hole; 15, fixing screw; 16, through port b; 17, gasket a; 18, gasket b; 19, thread groove a; 20, thread block a; 21, thread groove b; 22, thread groove c; 23, thread block b; 24, thread groove d. Specific implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0028] The present utility model provides a magnetic steel pasting and positioning structure for a motor rotor as shown in Figure 1-8 which includes a top plate 2 and a plurality of upper positioning plates 3 equidistantly installed on the outer wall of the lower end of the top plate 2;

[0029] A bottom plate 6 is arranged on the lower side of the top plate 2;

[0030] A plurality of lower positioning plates 5 are equidistantly and fixedly connected to the inner part of the outer wall of the upper end of the bottom plate 6;

[0031] A magnet steel body 4 is clamped between a top plate 2 and a bottom plate 6. A plurality of card slots 10 are equidistantly arranged on the outer walls of the upper and lower ends of the magnet steel body 4. A positioning pin 1 that passes upward is arranged on the outer wall of the lower end of the bottom plate 6. During the bonding process of the motor rotor magnet steel body 4, first, the positions of the top plate 2 and the bottom plate 6 are restricted by the positioning pin 1, and the upper positioning plate 3 and the lower positioning plate 5 are kept flush. Subsequently, the plurality of magnet steel bodies 4 are respectively moved between the upper positioning plate 3 and the lower positioning plate 5 to complete the bonding positioning and fixing.

[0032] A through port a11 is provided inside the outer wall of the lower end of the top plate 2 to separate the upper positioning plate 3 and the top plate 2. A through port b16 with an upward opening is provided inside the outer wall of the upper end of the bottom plate 6 to separate the lower positioning plate 5 and the bottom plate 6. Gaskets a17 are arranged on the outer walls of the left and right ends of the upper positioning plate 3 and the lower positioning plate 5 to increase the lateral length of the upper positioning plate 3 and the lower positioning plate 5. Gaskets b18 are arranged on the outer walls of the lower end of the upper positioning plate 3 and the upper end of the lower positioning plate 5 to increase the vertical length of the upper positioning plate 3 and the lower positioning plate 5. When assisting in bonding and fixing the magnet steel bodies 4 between the upper positioning plate 3 and the lower positioning plate 5, according to the spacing requirements between the plurality of magnet steel bodies 4, the upper positioning plate 3 and the lower positioning plate 5 can be respectively removed from the through port a11 and the through port b16 on the top plate 2 and the bottom plate 6, and the upper positioning plate 3 and the lower positioning plate 5 that meet the composite requirements can be replaced according to the spacing requirements between the magnet steel bodies 4. At the same time, a plurality of gaskets b18 and gaskets a17 can be respectively fixed at the lower end, left end, and right end of the upper positioning plate 3 and the upper end, left end, and right end of the lower positioning plate 5 to increase and adjust the lateral length and vertical length of the upper positioning plate 3 and the lower positioning plate 5.

[0033] As Figure 4 and Figure 5 As shown, a plurality of threaded rods 12 that pass upward through the top plate 2 are equidistantly and fixedly connected to the outer wall of the upper end of the upper positioning plate 3. Nuts 13 are threadedly connected to one ends of the plurality of threaded rods 12 to restrict the position of the upper positioning plate 3. A plurality of fixing screws 15 that penetrate inward into the lower positioning plate 5 are equidistantly arranged on the circular outer wall of the bottom plate 6 to restrict the position of the lower positioning plate 5. Threaded holes 14 for screwing the fixing screws 15 are provided between the lower positioning plate 5 and the inside of the bottom plate 6.

[0034] When disassembling the upper positioning plate 3, first separate the nut 13 from the threaded rod 12, then the upper positioning plate 3 can be taken out from the through hole a11. Insert the replaced upper positioning plate 3 back into the through hole a11, pass the threaded rod 12 through the top plate 2, and then screw the nut 13 onto the threaded rod 12 to limit the position of the upper positioning plate 3. At the same time, when disassembling the lower positioning plate 5, unscrew the fixing screw 15, and the lower positioning plate 5 can be taken out from the through hole b16. After putting the replaced lower positioning plate 5 back into the through hole b16, align the threaded hole 14 with the threaded hole 14 on the bottom plate 6, and then screw in the fixing screw 15 to limit the position of the lower positioning plate 5.

[0035] As Figure 7 and Figure 8 shown, a downward-opening threaded groove a19 is provided on the outer wall of the lower end of the upper positioning plate 3, and a threaded block a20 that is screwed with the threaded groove a19 is fixedly connected to the outer wall of the upper end of the gasket b18 to limit the position of the gasket b18. A downward-opening threaded groove b21 is provided inside the center of the outer wall of the lower end of the gasket b18. Threaded grooves c22 are provided inside the outer walls of the left and right ends of the upper positioning plate 3 and the lower positioning plate 5. A threaded block b23 that is screwed with the threaded groove c22 is fixedly connected to one side of each of the plurality of gaskets a17 close to the upper positioning plate 3 and the lower positioning plate 5 to limit the position of the gasket a17. A threaded groove d24 is provided inside the outer wall of the right end of the gasket a17.

[0036] When installing the gasket a17, screw the threaded block b23 at one end of the gasket a17 into the threaded groove c22 on one side of the upper positioning plate 3 or the lower positioning plate 5. When adding a gasket a17, screw the threaded block b23 at one end of another gasket a17 into the threaded groove d24 opened at the right end of the previous gasket a17 to complete the addition of the gasket a17. When disassembling the gasket a17, unscrew the gasket a17 in the counterclockwise direction. At the same time, when installing the gasket b18, screw the threaded block a20 at one end of the gasket b18 into the threaded groove a19 at the lower end of the upper positioning plate 3 or the upper end of the lower positioning plate 5. When adding a gasket b18, screw the threaded block a20 at one end of another gasket b18 into the threaded groove c22 opened in the previous gasket b18 to complete the addition of the gasket b18. When disassembling the gasket b18, unscrew the gasket b18 in the counterclockwise direction.

[0037] As Figure 2 and Figure 3 shown, an inner ring 7 is provided on the circular inner wall of the magnet main body 4 to limit the bonding position of the magnet main body 4. A rocker 8 is fixedly connected to the outer wall of the lower end of the positioning pin 1, and a limiting plate 9 is fixedly connected to the center of the outer wall of the upper end of the bottom plate 6 to clamp and limit the position of the inner ring 7. The magnet main body 4 and the inner ring 7 are fixedly connected by bonding.

[0038] When pasting the magnet main body 4, first snap the inner ring 7 onto the limit plate 9 at the upper end of the bottom plate 6, and then snap the top plate 2 onto the upper side of the inner ring 7. The placement and fixing position of the positioning pin 1 is restricted by snapping the rocker 8 into the bottom plate 6.

[0039] The implementation principle of this embodiment is as follows: During the bonding process of the motor rotor magnet main body 4, first, the position between the top plate 2 and the bottom plate 6 is restricted by the positioning pin 1, and the upper positioning plate 3 and the lower positioning plate 5 are kept flush. Subsequently, move multiple magnet main bodies 4 between the upper positioning plate 3 and the lower positioning plate 5 respectively to complete the bonding and positioning fixation. When assisting in the bonding and fixation between the magnet main bodies 4 between the upper positioning plate 3 and the lower positioning plate 5, according to the spacing requirements between multiple magnet main bodies 4, the upper positioning plate 3 and the lower positioning plate 5 can be removed from the through-holes a11 and b16 on the top plate 2 and the bottom plate 6 respectively, and the upper positioning plate 3 and the lower positioning plate 5 that meet the composite requirements can be replaced according to the spacing requirements between the magnet main bodies 4. At the same time, multiple spacer b18 and spacer a17 can be fixed at the lower end, left and right ends of the upper positioning plate 3 and the upper end, left and right ends of the lower positioning plate 5 respectively to increase and adjust the horizontal length and vertical length of the upper positioning plate 3 and the lower positioning plate 5.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, 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 magnetic steel pasting and positioning structure, comprising a top plate (2) and a plurality of upper positioning plates (3) equidistantly mounted on the outer wall of the lower end of the top plate (2); A bottom plate (6) is provided on the lower side of the top plate (2); A plurality of lower positioning plates (5) are fixedly connected at equal intervals to the inner portion of the outer wall of the upper end of the bottom plate (6); A magnetic steel body (4) is clamped between the top plate (2) and the bottom plate (6); a plurality of clamping grooves (10) are equidistantly provided on the upper and lower outer walls of the magnetic steel body (4); and a positioning pin (1) is provided on the lower outer wall of the bottom plate (6) and passes through upwards; Features: A through hole a (11) is provided inside the lower outer wall of the top plate (2) to separate the upper positioning plate (3) and the top plate (2); an upwardly opening through hole b (16) is provided inside the upper outer wall of the bottom plate (6) to separate the lower positioning plate (5) and the bottom plate (6); gaskets a (17) are provided on the left and right outer walls of the upper positioning plate (3) and the lower positioning plate (5) to increase the lateral length of the upper positioning plate (3) and the lower positioning plate (5); and gaskets b (18) are provided on the lower outer wall of the upper positioning plate (3) and the upper outer wall of the lower positioning plate (5) to increase the vertical length of the upper positioning plate (3) and the lower positioning plate (5).

2. The motor rotor magnetic steel pasting and positioning structure according to claim 1, characterized in that: The outer wall of the upper end of the upper positioning plate (3) is equidistantly and fixedly connected with a plurality of threaded rods (12) that pass upward through the top plate (2); one end of each of the plurality of threaded rods (12) is threadedly connected with a nut (13) to limit the position of the upper positioning plate (3).

3. The motor rotor magnetic steel pasting and positioning structure according to claim 1, characterized in that: The circular outer wall of the bottom plate (6) is equidistantly provided with a plurality of fixing screws (15) which penetrate inwardly into the interior of the lower positioning plate (5) to limit the position of the lower positioning plate (5); threaded holes (14) for the fixing screws (15) to be screwed are provided between the lower positioning plate (5) and the interior of the bottom plate (6).

4. The motor rotor magnetic steel pasting and positioning structure according to claim 1, characterized in that: The lower outer wall of the upper positioning plate (3) is provided with a downwardly opening thread groove a (19), and the upper outer wall of the gasket b (18) is fixedly connected with a thread block a (20) screwed into the thread groove a (19) to limit the position of the gasket b (18).

5. The motor rotor magnetic steel pasting and positioning structure according to claim 1, characterized in that: A downwardly opening thread groove b (21) is provided at the center of the lower outer wall of the gasket b (18), and a thread groove c (22) is provided at the left and right outer walls of the upper positioning plate (3) and the lower positioning plate (5).

6. The motor rotor magnetic steel pasting and positioning structure according to claim 1, characterized in that: A plurality of the gaskets a (17) are fixedly connected to a thread block b (23) screwed into the thread groove c (22) on one side close to the upper positioning plate (3) and the lower positioning plate (5) to limit the position of the gasket a (17), and a thread groove d (24) is provided inside the outer wall of the right end of the gasket a (17).

7. The motor rotor magnetic steel pasting and positioning structure according to claim 1, characterized in that: The circular inner wall of the magnetic steel body (4) is provided with an inner ring (7) to limit the bonding position of the magnetic steel body (4), and the outer wall of the lower end of the positioning pin (1) is fixedly connected with a rocker (8).

8. The motor rotor magnetic steel pasting and positioning structure according to claim 1, characterized in that: A limiting plate (9) is fixedly connected to the center of the outer wall of the upper end of the bottom plate (6) to clamp and limit the position of the inner ring (7), and the magnetic steel body (4) and the inner ring (7) are fixedly connected by bonding.

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