A high-precision magnetic rotor

Abstract

The utility model relates to the technical field of magnetic rotor, especially a high accuracy magnetic rotor, including rotating shaft, axle, rotor core and shell, the rotating shaft circumferential surface annular integrally formed has a plurality of L shaped blocks, the axle inner wall is equipped with a plurality of L shaped grooves, the bolt upper surface is equipped with cross groove, the cross groove inner wall is pasted with covering cap, the covering cap lower surface is equipped with the cross block that extends into cross groove, the axle outer surface is equipped with a plurality of locating blocks, the rotor core inner wall is equipped with a plurality of locating grooves, the rotor core surface is equipped with a plurality of lug. The utility model axle does not need to install rotating shaft in the mould, and two components can produce in branch factory, improves production efficiency, through the positioning effect of locating block and locating groove, avoids the deviation when installing, improves the production quality of this magnetic rotor.

Description

Technical Field

[0001] This utility model relates to the field of magnetic rotor technology, and in particular to a high-precision magnetic rotor. Background Technology

[0002] The rotor of an electric motor is divided into a magnetic rotor and a non-magnetic rotor. The magnetic rotor includes a rotor core and magnetic tiles set on the rotor core. The magnetic tiles are magnetic, and the interaction between the magnetic tiles and the magnetism of the stator drives the rotor core to rotate.

[0003] For example, the authorization announcement number "CN214900399U" is named "An integrated magnetic rotor with strong structural stability". It uses a ring-shaped concave structure with three sets of grooves set along the surface of the rotor core. The rotor core is installed in the mold for manufacturing the shaft. This allows the rotating shaft to be fixedly connected to the shaft core by the use of grooves while the injection molding process forms a whole. This makes the magnetic rotor an integrated connection structure with stronger stability.

[0004] The above-mentioned and existing technologies have the following drawbacks: Because the rotor core is installed in the mold used to manufacture the shaft, the shaft can only be produced after the rotor core is manufactured, leading to low production efficiency. Furthermore, the lack of a positioning device between the shaft and the rotating shaft causes deviations during installation, affecting the production quality of the magnetic rotor. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-precision magnetic rotor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a high-precision magnetic rotor, comprising a rotating shaft, a shaft center, a rotor core, and a housing. The rotating shaft has multiple L-shaped blocks integrally formed on its circumferential surface. The shaft center has multiple L-shaped grooves on its inner wall. Each L-shaped block corresponds to and matches one-to-one with each L-shaped groove, and the L-shaped blocks and grooves are bonded together. Each L-shaped block has a concealed groove on its upper surface, and a bolt is installed inside the concealed groove. The bolt threadedly connects the L-shaped block and the L-shaped groove. A cross groove is formed on the upper surface of the bolt, and a cover cap is glued to the inner wall of the cross groove. A cross block extends into the cross groove from the lower surface of the cover cap. The shaft center has multiple positioning blocks on its outer surface. The rotor core has multiple positioning grooves on its inner wall, and each positioning block corresponds to and matches one-to-one with each positioning groove, and the positioning blocks and grooves are bonded together. The rotor core has multiple protrusions on its surface, and a permanent magnet is placed between each adjacent protrusion. The outer surface of the rotor core is bonded to the inner wall of the housing, and the outer surface of the housing is sealed.

[0008] Preferably, the lower part of the rotating shaft has a threaded groove, and the lower surface of the rotating shaft has a mounting groove.

[0009] Preferably, the lower end of the L-shaped block is provided with a first inclined surface extending inward from top to bottom, and the lower end of the L-shaped groove is provided with a second inclined surface extending inward from top to bottom, wherein the first inclined surface and the second inclined surface are matched.

[0010] Preferably, the upper end of the positioning block is provided with a support block, the upper end of the positioning groove is provided with a support groove, the support block matches the support groove, and the support block is connected to the support groove by adhesive.

[0011] Preferably, both the shaft and the rotor core have notches on opposite sides of their lower surfaces, and a retaining ring is bonded together with the two notches.

[0012] The high-precision magnetic rotor proposed in this utility model has the following advantages: the shaft does not need to be installed in the mold to rotate, and the two components can be produced in separate factories, which improves production efficiency; the positioning effect of the positioning block and positioning groove avoids deviation during installation, thus improving the production quality of this magnetic rotor. Attached Figure Description

[0013] Figure 1 This is an exploded perspective view of the present invention;

[0014] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0015] Figure 3 This is an enlarged view of position A in this utility model;

[0016] Figure 4 This is an enlarged view of position B of this utility model.

[0017] In the diagram: 1. Rotating shaft; 2. Shaft; 3. Rotor core; 4. Outer shell; 5. L-shaped block; 6. L-shaped groove; 7. Concealed groove; 8. Bolt; 9. Cross groove; 10. Cover cap; 11. Cross block; 12. Positioning block; 13. Positioning groove; 14. Protrusion; 15. Permanent magnet; 16. Seal; 17. Threaded groove; 18. Mounting groove; 19. First inclined surface; 20. Second inclined surface; 21. Support block; 22. Support groove; 23. Notch; 24. Fixing ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-4A high-precision magnetic rotor includes a rotating shaft 1, a core 2, a rotor core 3, and a housing 4. The rotating shaft 1 has multiple L-shaped blocks 5 integrally formed on its circumferential surface. The core 2 has multiple L-shaped grooves 6 formed on its inner wall. The L-shaped blocks 5 correspond one-to-one with the L-shaped grooves 6 and are connected by adhesive. A concealed groove 7 is formed on the upper surface of the L-shaped blocks 5, and a bolt 8 is installed inside the concealed groove 7. The bolt 8 threadedly connects the L-shaped blocks 5 and the L-shaped grooves 6. A cross groove 9 is formed on the upper surface of the bolt 8, and the inner wall of the cross groove 9 is glued... The rotor core 3 has a cover cap 10, and a cross block 11 extending into the cross groove 9 is provided on the lower surface of the cover cap 10. Multiple positioning blocks 12 are provided on the outer surface of the shaft core 2. Multiple positioning grooves 13 are provided on the inner wall of the rotor core 3. The multiple positioning blocks 12 and multiple positioning grooves 13 correspond to and match one by one. The positioning blocks 12 and positioning grooves 13 are connected by adhesive. Multiple protrusions 14 are provided on the surface of the rotor core 3. A permanent magnet 15 is provided between two adjacent protrusions 14. The outer surface of the rotor core 3 is bonded to the inner wall of the outer shell 4. The outer surface of the outer shell 4 is provided with a sealing strip 16.

[0020] The lower part of the rotating shaft 1 has a threaded groove 17, and the lower surface of the rotating shaft 1 has a mounting groove 18. In use, the threaded groove 17 can be used to connect the magnetic rotor to the external structure by thread, which increases the contact area and enhances the connection stability. At the same time, the mounting groove 18 can be provided to connect to the external structure by key, which can diversify the connection methods.

[0021] The lower end of the L-shaped block 5 has a first inclined surface 19 extending inward from top to bottom, and the lower end of the L-shaped groove 6 has a second inclined surface 20 extending inward from top to bottom. The first inclined surface 19 matches the second inclined surface 20. The first inclined surface 19 facilitates the insertion of the L-shaped block 5 into the L-shaped groove 6.

[0022] The positioning block 12 has a support block 21 at its upper end, and the positioning groove 13 has a support groove 22 at its upper end. The support block 21 matches the support groove 22, and the support block 21 is connected to the support groove 22 by adhesive. By the support block 21 abutting against the support groove 22, the shaft 2 and the rotor core 3 are connected more tightly.

[0023] Both the shaft 2 and the rotor core 3 have notches 23 on opposite sides of their lower surfaces, and the two notches 23 are bonded together with a fixing ring 24.

[0024] Working principle: The L-shaped block 5 is coated with a strong adhesive, then the L-shaped groove 6 of the shaft 2 and the L-shaped block 5 of the rotating shaft 1 are aligned. The shaft 2 and rotating shaft 1 are then threaded together using bolts 8. Next, the cross block 11 is coated with a strong adhesive and inserted into the cross groove 9 to fix the cover cap 10 to the concealed groove 7. Then, the positioning block 12 is coated with a strong adhesive and aligned with the positioning groove 13 of the rotor core 3, bonding the shaft 2 and rotor core 3 together. Finally, the retaining ring 24 is coated with a strong adhesive and inserted into the inner notch 23 to further reinforce the shaft 2 and rotor core 3. Finally, the rotor core 3 and outer shell 4 are bonded together using a strong adhesive. In summary, the shaft 2 does not need to be installed in the mold to support the rotating shaft 1; the two components can be produced in separate factories, improving production efficiency. The positioning function of the positioning block 12 and positioning groove 13 avoids deviations during installation, improving the production quality of this magnetic rotor.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-precision magnetic rotor, comprising a rotating shaft (1), a shaft center (2), a rotor core (3), and a housing (4), characterized in that, The rotating shaft (1) has multiple L-shaped blocks (5) integrally formed on its circumferential surface. The inner wall of the shaft (2) has multiple L-shaped grooves (6). The multiple L-shaped blocks (5) correspond one-to-one with the multiple L-shaped grooves (6). The L-shaped blocks (5) and L-shaped grooves (6) are connected by adhesive. The upper surface of the L-shaped block (5) has a concealed groove (7). The concealed groove (7) has a bolt (8) inside. The bolt (8) connects the L-shaped block (5) and the L-shaped groove (6) by thread. The upper surface of the bolt (8) has a cross groove (9). The inner wall of the cross groove (9) is glued with a cover cap (10). The cover cap (10) The lower surface is provided with a cross block (11) extending into the cross groove (9). The outer surface of the shaft (2) is provided with multiple positioning blocks (12). The inner wall of the rotor core (3) is provided with multiple positioning grooves (13). The multiple positioning blocks (12) correspond one-to-one with the multiple positioning grooves (13). The positioning blocks (12) and the positioning grooves (13) are connected by adhesive. The surface of the rotor core (3) is provided with multiple protrusions (14). A permanent magnet (15) is provided between two adjacent protrusions (14). The outer surface of the rotor core (3) is bonded to the inner wall of the outer shell (4). The outer surface of the outer shell (4) is provided with a seal (16).

2. A high-precision magnetic rotor according to claim 1, characterized in that, The lower part of the rotating shaft (1) is provided with a threaded groove (17), and the lower surface of the rotating shaft (1) is provided with an installation groove (18).

3. A high-precision magnetic rotor according to claim 1, characterized in that, The lower end of the L-shaped block (5) is provided with a first inclined surface (19) facing inward from top to bottom, and the lower end of the L-shaped groove (6) is provided with a second inclined surface (20) facing inward from top to bottom. The first inclined surface (19) matches the second inclined surface (20).

4. A high-precision magnetic rotor according to claim 1, characterized in that, The positioning block (12) has a support block (21) at its upper end, and the positioning groove (13) has a support groove (22) at its upper end. The support block (21) matches the support groove (22), and the support block (21) is connected to the support groove (22) by adhesive bonding.

5. A high-precision magnetic rotor according to claim 1, characterized in that, Both the shaft (2) and the rotor core (3) have notches (23) on opposite sides of their lower surfaces, and the two notches (23) are bonded together with a fixing ring (24).

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