Magnetic steel positioning and mounting device

Abstract

The invention relates to a magnetic steel positioning and mounting device, and the device comprises a workbench which is used for mounting a rotating shaft; the rotor iron core is installed on the rotating shaft, an upper lantern ring is installed at the upper end of the rotor iron core, a lower lantern ring is installed at the lower end of the rotor iron core, annular notches are formed in the upper lantern ring and the lower lantern ring, and positioning structures which can stretch out and draw back in the radial direction of the rotor iron core are installed in the annular notches. The positioning structures of the upper lantern ring and the lower lantern ring are connected through positioning ribs. The lantern rings are mounted on the two end faces of the rotor core, the positioning structures are placed on the lantern rings, and the positioning ribs are connected with one another, so that the upper lantern ring, the lower lantern ring, the positioning structures and the positioning ribs form a magnetic steel mounting space area, and the positioning structures can be extended or shortened to increase the diameter of the magnetic steel mounting area; therefore, magnetic steel installation of rotor iron core outer diameters of different sizes is satisfied, the magnetic steel installation technology is simplified, and the production cost of the motor is reduced.

Description

Technical Field

[0001] This invention relates to the field of motor magnet installation, and more specifically to a magnet positioning and installation device. Background Technology

[0002] In the existing process of magnet installation and positioning, there is a mainstream method for magnet positioning, which involves pre-designing positioning ribs on the rotor core laminations for subsequent magnet installation. However, the presence of positioning ribs can affect the magnetic flux density to some extent. Therefore, the positioning ribs are usually designed to be extremely small in height. However, the small size of the positioning ribs increases the difficulty of the rotor core lamination processing and causes large dimensional deviations during processing. The former increases the cost of motor production due to the increased processing difficulty, while the latter affects the overall performance of the motor due to large dimensional deviations.

[0003] In related technologies, there are motors with no positioning ribs on the surface of the rotor core. In the process of installing the magnets in such motors, a positioning device for magnet installation and positioning is required. The most commonly used magnet installation and positioning device is a cylindrical mesh cover with the same outer diameter as the rotor core. When positioning the magnets, the cylindrical mesh cover is placed on the surface of the rotor core, and the positioning strips on the cylindrical mesh cover form a space zone for magnet installation.

[0004] However, since there are certain size differences in the outer diameter of the rotor core of different motors, a cylindrical mesh cover of this size can only be used for the installation of magnets on the surface of rotor cores with one rotor core outer diameter. The application conditions are limited. To install magnets on the surface of rotor cores with different rotor core outer diameters, many cylindrical mesh covers of corresponding sizes are needed, which increases the difficulty of magnet installation and also increases the production cost of motors. Summary of the Invention

[0005] Based on the above description, the present invention provides a magnet positioning and installation device to solve the problems of limited usage conditions, increased technical difficulty in magnet installation, and increased production cost of motors in related technologies.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A magnet positioning and installation device includes: a workbench for installing a rotating shaft; a rotor core installed on the rotating shaft, an upper collar installed at the upper end of the rotor core and a lower collar installed at the lower end, an annular groove provided on the upper collar and the lower collar, a positioning structure that can extend and retract radially along the rotor core installed in the annular groove, the positioning structures of the upper collar and the lower collar being connected by positioning ribs, and a magnet installation area being formed between the rotor core, the upper collar, the lower collar and the positioning ribs.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the positioning rib includes an upper positioning rib and a lower positioning rib that are connected to each other. The upper end of the upper positioning rib is connected to the upper collar, and the lower end of the lower positioning rib is connected to the lower collar.

[0009] Furthermore, the upper positioning rib and the lower positioning rib are connected by an extension rod.

[0010] Furthermore, the positioning structure includes a positioning rib connecting column, and the positioning rib connecting column is provided with a positioning rib slot, which is used to cooperate with the upper positioning rib and the lower positioning rib for connection.

[0011] Furthermore, the positioning structure also includes a positioning block and a positioning extension block. The positioning block is installed in the annular groove, the positioning extension block is movably installed in the positioning block, and the positioning rib connecting column is disposed on the positioning block.

[0012] Furthermore, the positioning block is locked in the annular groove by positioning fastening screws.

[0013] Furthermore, multiple positioning blocks are spaced apart within the annular groove.

[0014] Furthermore, the worktable is provided with a circular hole, and the rotating shaft is engaged in the circular hole.

[0015] Furthermore, a fastening block is installed around the outer periphery of the circular hole, and the fastening block can move radially along the circular hole.

[0016] Furthermore, a fastening screw is installed on the fastening block, and the fastening screw can push the fastening block forward or backward toward the circular hole by screwing it in or out.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: By installing collars on both ends of the rotor core, placing positioning structures on the collars, and connecting the positioning ribs, the upper and lower collars, positioning structures, and positioning ribs form a space for magnet installation. The positioning structures can be lengthened or shortened to increase the diameter of the magnet installation area, thus satisfying the installation of magnets with different rotor core outer diameters, simplifying the magnet installation process, and reducing the production cost of the motor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the magnet positioning and installation device provided in an embodiment of the present invention; Figure 2This is a partial structural schematic diagram of the magnet positioning and installation device provided in an embodiment of the present invention; Figure 3 A top view of the fastening block provided in an embodiment of the present invention; Figure 4 This is a front view of the fastening block provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of an embodiment of the fastening block provided in this invention; Figure 6 This is a schematic diagram of the positioning rib and collar provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the first embodiment of the positioning structure provided in this invention. Figure 8 This is a schematic diagram of a second embodiment of the positioning structure provided in this invention. Figure 9 This is a schematic diagram of a third embodiment of the positioning structure provided in this invention. Figure 10 A schematic diagram of the installation structure of the positioning rib provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the positioning structure provided in an embodiment of the present invention; Figure 12 This is a schematic diagram of the positioning rib bayonet provided in an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure of the first embodiment of the positioning rib provided in this invention. Figure 14 This is a schematic diagram of the structure of a second embodiment of the positioning rib provided in this invention. Figure 15 This is a schematic diagram of the positioning rib provided in an embodiment of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Workbench; 2. Rotor core; 3. Shaft; 4. Magnet; 5. Upper positioning rib; 6. Upper collar; 7. Fastening block; 8. Fastening screw; 9. Lower collar; 10. Positioning block; 11. Positioning fastening screw; 12. Positioning extension block; 13. Positioning rib connecting column; 14. Positioning rib bayonet; 15. Lower positioning rib; 16. Extension rod; 17. Positioning rib column; 18. Rubber diaphragm. Detailed Implementation

[0020] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0021] This invention provides a magnet positioning and installation device that can solve the problems of limited usage conditions, increased technical difficulty in magnet installation, and increased production costs of motors in related technologies.

[0022] like Figure 1 and Figure 2 As shown, after the rotor core 2 is installed on the rotating shaft 3, the magnets 4 need to be installed in designated areas. First, the upper collar 6 and the lower collar 9 are fitted onto the two end faces of the rotor core 2. After the upper positioning rib 5 and the lower positioning rib 15 are connected to each other, the upper collar 6 and the lower collar 9 are connected together. On the surface of the rotor core 2, the installation area of ​​the magnets 4 is formed by every two adjacent upper positioning ribs 5 and lower positioning ribs 15. Then, the rotor core assembly is placed on the workbench 1, and each column of magnets 4 is installed sequentially until the required number of magnets is installed.

[0023] like Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown, the rotor core assembly for installing magnets 4 is placed on the workbench 1. A central circular hole for the rotating shaft 3 to pass through is located in the middle of the workbench 1, and four fastening blocks 7 are placed in this central hole. The fastening blocks 7 are controlled by fastening screws 8. When the rotating shaft 3 extends a certain distance under the workbench 1, the fastening screws 8 are screwed in or out, pushing the fastening blocks 7 forward or backward toward the central hole. This creates central holes of different diameters from the four fastening blocks 7, allowing for the clamping of rotating shafts 3 of different sizes. Simultaneously, this ensures the rotor core assembly remains upright on the workbench 1 during magnet installation, preventing slippage and facilitating the installation of magnets 4.

[0024] like Figures 6-12 As shown, annular slots are provided on the upper collar 6 and the lower collar 9. The positioning structure includes positioning blocks 10, positioning fastening screws 11, positioning extension blocks 12, positioning rib connecting posts 13, and positioning rib slots 14. To accommodate motors with different numbers of 4 rows of magnets, a corresponding number of positioning blocks 10 can be set on the annular slots. The positioning blocks 10 are locked in the corresponding positions of the annular slots by the positioning fastening screws 11. For example... Figure 6 and Figure 7 It is a four-positioning block 10 that can install four rows of magnets. Figure 9It consists of eight positioning blocks (10) with eight columns of magnets (4 numbers).

[0025] like Figure 11 As shown, the positioning extension block 12 and the positioning block 10 are telescopically connected to create different diameters of the circles formed by the positioning structure. When the outer diameter of the installed rotor core assembly is small, the positioning extension block 12 is pushed into the positioning block 10, and then the positioning block 10 is locked onto the annular groove by the positioning fastening screw 11, thus installing the magnet 4 of the small outer diameter rotor core assembly. When the outer diameter of the installed rotor core assembly is large, the positioning extension block 12 is pulled out to a certain distance outside the positioning block 10, and then the positioning extension block 12 is locked onto the annular groove by the positioning fastening screw 11, thus installing the magnet 4 of the large outer diameter rotor core assembly. Figure 7 and Figure 8 As shown, magnets 4 with different diameters are installed to meet the requirements of rotor core assemblies of different sizes.

[0026] like Figure 12 and Figure 15 As shown, a positioning rib slot 14 is provided on the positioning rib connecting column 13 for connecting and engaging with the positioning rib column 17 on the upper positioning rib 5 or the lower positioning rib 15. During the installation of the magnet 4, the upper positioning rib 5 or the lower positioning rib 15 can rotate circumferentially.

[0027] like Figure 13 and Figure 14 As shown, for the installation of magnets 4 in rotor core assemblies of different lengths, a single length connection of the upper positioning rib 5 and the lower positioning rib 15 can be selected to meet the installation requirements of magnets 4 in rotor core assemblies of short lengths. Alternatively, an extension rod 16 can be used to connect the upper positioning rib 5 and the lower positioning rib 15 together to form a magnet 4 installation in rotor core assemblies of long lengths. At the same time, a rubber film 18 is applied to the surface of the upper positioning rib 5, the lower positioning rib 15, and the extension rod 16 on the side near the rotor core 2 to prevent the upper positioning rib 5, the lower positioning rib 15, and the extension rod 16 from scratching or damaging one side surface of the rotor core 2 during the installation of magnets 4.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0029] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0030] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0031] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnetic steel positioning and mounting device, characterized in that, It includes: Workbench (1) for installing the rotating shaft (3); Rotor core (2) installed on the rotating shaft (3), the upper end of the rotor core (2) is installed with the upper ring (6), the lower end is installed with the lower ring (9), the upper ring (6) and the lower ring (9) are provided with annular notch, the annular notch is installed with the positioning structure which can expand along the radial direction of the rotor core (2), the positioning structure between the upper ring (6) and the lower ring (9) is connected through the positioning rib, the rotor core (2), the upper ring (6), the lower ring (9) and the positioning rib form the installation area of the magnetic steel (4).

2. The magnetic steel positioning installation device according to claim 1, wherein: The positioning rib includes the upper positioning rib (5) and the lower positioning rib (15) connected with each other, the upper end of the upper positioning rib (5) is connected to the upper ring (6), and the lower end of the lower positioning rib (15) is connected to the lower ring (9).

3. The magnetic steel positioning installation device according to claim 2, wherein: The upper positioning rib (5) and the lower positioning rib (15) are connected through the extension rod (16).

4. The magnetic steel positioning installation device according to claim 2, wherein: The positioning structure includes the positioning rib connecting column (13), the positioning rib connecting column (13) is provided with the positioning rib clasp (14), and the positioning rib clasp (14) is used for matched connection with the upper positioning rib (5) and the lower positioning rib (15).

5. The magnetic steel positioning installation device according to claim 4, wherein: The positioning structure further includes the positioning block (10) and the positioning extension block (12), the positioning block (10) is installed in the annular notch, the positioning extension block (12) is movably installed in the positioning block (10), and the positioning rib connecting column (13) is arranged on the positioning block (10).

6. The magnetic steel positioning installation device according to claim 5, wherein: The positioning block (10) is locked in the annular notch through the positioning fastening screw (11).

7. The magnetic steel positioning installation device according to claim 5, wherein: A plurality of positioning blocks (10) are arranged in the annular notch at intervals.

8. The magnetic steel positioning installation device according to claim 1, wherein: The workbench (1) is provided with a circular hole, and the rotating shaft (3) is clamped in the circular hole.

9. The magnetic steel positioning installation device according to claim 8, wherein: A fastening block (7) is arranged on the outer side of the circular hole, and the fastening block (7) can move along the radial direction of the circular hole.

10. The magnetic steel positioning installation device according to claim 9, wherein: The fastening block (7) is installed with a fastening screw (8), and the fastening screw (8) can push the fastening block (7) forward or backward by rotating forward or backward.

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