A method for assembling magnetic steel of hub motor

Abstract

The present invention belongs to the technical field of motor assembly, and discloses a method for assembling magnetic steel of a hub motor, comprising the following steps: S1, tooling assembly; S2, fixing the rotor; S3, magnetic steel assembly; S3.1, alternately pasting the N and S poles of four groups of magnetic steels on the inner side of the rotor; S3.2, pasting slot wedges on the inner side of the rotor against the magnetic steel; S3.3, loosening the clamping plate and the clamping claw, and adjusting the rotor angle; S3.4, repeating steps S3.1 and S3.2 to fill the rotor with magnetic steel. In the present invention, the rotor of the hub motor is placed between two clamping plates, and then the clamping claw is operated to tighten the inner hole of the hub motor rotor outward until it is completely fixed, and then four magnetic steel N and S levels are alternately pasted on the inner side of the rotor, and then the fixed size slot wedges are glued, and this step is repeated until the inside of the rotor is completely filled with magnetic steel, which facilitates the positioning of the rotor and improves the assembly efficiency of the magnetic steel.

Description

Technical Field

[0001] The invention belongs to the technical field of motor assembly, and in particular relates to a method for assembling magnetic steel of a hub motor. Background Art

[0002] As the pressure of energy shortage and environmental problems continues to increase, new energy vehicles have begun to attract attention from all walks of life. New energy vehicles driven by hub motors have gained more and more attention due to their compact structure, fewer transmission parts, and low energy loss. As important components of hub motors, the outer rotor and stator together constitute the main body of the motor, and uniformly distributed magnetic steel is generally set on the rotor. At present, the magnetic steel assembly method mostly adopts manual adjustment and installation, which has problems such as difficult positioning and steering. Summary of the invention

[0003] The object of the present invention is to provide a method for assembling a hub motor magnetic steel to solve the problems in the prior art mentioned in the above background technology.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A method for assembling a hub motor magnetic steel comprises the following steps:

[0006] S1. Tooling assembly:

[0007] S1.1. Install the movable clamp on the workbench;

[0008] S1.2. Install the clamping plate corresponding to the adjustable clamping jaw on the workbench;

[0009] S2, fixed rotor:

[0010] S2.1. Put the rotor on the outside of the clamp and place it on the inside of the clamp;

[0011] S2.2, adjust the clamping jaws to clamp on the inner side of the rotor;

[0012] S2.3, the adjusting clamp is clamped on the outer side of the rotor;

[0013] S3. Magnetic steel assembly:

[0014] S3.1. Alternately stick the N and S poles of the four sets of magnetic steels on the inner side of the rotor;

[0015] S3.2, stick the magnetic steel to the inner side of the rotor to bond the slot wedge;

[0016] S3.3, loosen the clamping plate and the clamping claw, and adjust the rotor angle;

[0017] S3.4. Repeat steps S3.1 and S3.2 to fill the rotor with magnetic steel.

[0018] Furthermore, the tooling includes a workbench, a splint and a clamp, and the splint and the clamp are both arranged on the workbench; the splint is arranged in two groups and is connected to the workbench through a movable part; the clamp is connected to a fixed plate, and an adjustment component is provided on the fixed plate.

[0019] Furthermore, the lower ends of the two groups of clamps are fixed on the slide of the electric slide, and the electric slide is installed on the workbench.

[0020] Furthermore, the adjustment assembly includes a height adjustment portion and a clamping jaw adjustment portion, the height adjustment portion is connected to the bottom of the fixing plate, and the clamping jaw adjustment portion is connected to the surface of the fixing plate.

[0021] Furthermore, the height adjustment part includes: an electric push rod; the base end of the electric push rod is installed on the workbench, and the working end is connected to the bottom of the fixed plate; a positioning part is provided between the fixed plate and the workbench.

[0022] Furthermore, the positioning portion includes a positioning rod and a positioning hole, and the positioning rod is inserted into the positioning hole; the positioning hole is opened at the bottom of the fixing plate, and the lower end of the positioning rod is fixed to the top of the workbench.

[0023] Furthermore, the clamping jaw adjusting part comprises a clamping jaw guiding part, a rotating shaft and a driving part, the clamping jaw is connected to a fixed plate via the clamping jaw guiding part, the rotating shaft is rotatably mounted on the fixed plate, and the driving part is connected to the rotating shaft.

[0024] Furthermore, the clamping jaw guide portion includes a guide groove and a slider, the slider is slidably connected in the guide groove, one end of the clamping jaw is fixed to one side of the slider, and a tension spring is connected between the bottom of the slider and the bottom of the guide groove.

[0025] Furthermore, the driving unit includes a transmission, a motor and a driving member; the driving member is fixed to the outside of the rotating shaft and corresponds to the slider; the transmission is connected to the end of the rotating shaft and is connected to the motor.

[0026] Furthermore, the driving member includes a kit and a driving rod; the driving rod is fixed to the outside of the kit, the kit is sleeved on the outside of the rotating shaft, and the driving rod is configured as an arc structure.

[0027] Technical effects and advantages of the present invention: Compared with the prior art, the method for assembling the magnetic steel of a hub motor proposed by the present invention has the following advantages:

[0028] In the present invention, the rotor of the hub motor is placed between two clamping plates, and then the clamping claws are operated to tighten the inner hole of the hub motor rotor outward until it is completely fixed. Then, four N and S grade magnetic steels are alternately pasted on the inner side of the rotor, and then fixed-size slot wedges are glued. This step is repeated until the inside of the rotor is completely covered with magnetic steels, which facilitates the positioning of the rotor and improves the assembly efficiency of the magnetic steels. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the hub motor magnetic steel assembly of the present invention;

[0030] Figure 2 Schematic diagram of the distribution structure of the magnetic steel and the slot wedge of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the tooling of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the splint of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the fixing plate of the present invention;

[0034] Figure 6 The structural schematic diagram of the positioning hole of the present invention is

[0035] Figure 7 It is a structural schematic diagram of the guide groove of the present invention;

[0036] Figure 8 It is a schematic structural diagram of the driving member of the present invention.

[0037] In the figure: 1. slot wedge; 2. magnet; 3. clamp; 301. electric slide; 4. rotor; 5. clamp; 6. adjustment assembly; 601. electric push rod; 602. positioning rod; 603. positioning hole; 604. rotating shaft; 605. guide groove; 606. slider; 607. tension spring; 608. transmission; 609. motor; 610. drive member; 611. kit; 612. drive rod; 7. fixing plate. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying 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, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] In an embodiment of the present invention, a method for assembling a hub motor magnet is provided, which includes an assembly tool, such as Figure 1-8 As shown. The tooling includes a workbench, a clamping plate 3 and a clamping jaw 5. The workbench is used to support the clamping plate 3 and the clamping jaw 5, and the clamping plate 3 and the clamping jaw 5 are both arranged on the workbench; the clamping plate 3 is provided with two groups and is connected to the workbench through a moving part. The clamping plate 3 and the clamping jaw 5 are used to clamp the rotor and position it. In addition, the clamping jaw 5 is connected to a fixed plate 7, and an adjustment component 6 is provided on the fixed plate 7. It is convenient for adjusting the height and opening and closing of the clamping jaw 5.

[0040] The lower ends of the two groups of clamping plates 3 are fixed on the slide of the electric slide 301, and the electric slide 301 is installed on the workbench. The clamping plates 3 are driven by the electric slide 301 to move horizontally, which is convenient for clamping and releasing the clamping plates 3, thereby facilitating the clamping and positioning of the rotor.

[0041] The adjustment assembly 6 includes a height adjustment part and a clamping jaw adjustment part, wherein the height adjustment part is connected to the bottom of the fixing plate 7, and the clamping jaw adjustment part is connected to the surface of the fixing plate 7. The height adjustment part is used to adjust the height of the clamping jaw 5, and the clamping jaw adjustment part is used to adjust the opening and closing of the clamping jaw 5, so as to adapt to the positioning of rotors of different sizes.

[0042] The height adjustment part includes: an electric push rod 601; the base end of the electric push rod 601 is installed on the workbench, and the working end is connected to the bottom of the fixed plate 7; a positioning part is provided between the fixed plate 7 and the workbench. The electric push rod 601 can drive the fixed plate 7 to move up and down, thereby adjusting the height of the clamping jaw 5.

[0043] Furthermore, the positioning part includes a positioning rod 602 and a positioning hole 603, wherein the positioning rod 602 is inserted into the positioning hole 603; the positioning hole 603 is provided at the bottom of the fixing plate 7, and the lower end of the positioning rod 602 is fixed to the top of the workbench. Through the cooperation between the positioning rod 602 and the positioning hole 603, the angle of the fixing plate 7 can be limited to prevent it from rotating.

[0044] The clamping jaw adjusting part includes a clamping jaw guide part, a rotating shaft 604 and a driving part. The clamping jaw 5 is connected to the fixed plate 7 through the clamping jaw guide part. The rotating shaft 604 is rotatably mounted on the fixed plate 7. The driving part is connected to the rotating shaft 604. The clamping jaw guide part can limit the position of the clamping jaw 5, which is conducive to its movement under the drive of the driving part. The driving part drives the rotating shaft 604 to rotate and drive the driving member 610, so that the opening and closing of the clamping jaw 5 can be adjusted.

[0045] The clamping jaw guide portion includes a guide groove 605 and a slider 606. The slider 606 is slidably connected in the guide groove 605. One end of the clamping jaw 5 is fixed to one side of the slider 606. A tension spring 607 is connected between the bottom of the slider 606 and the bottom of the guide groove 605.

[0046] Through the cooperation of the guide groove 605 and the slider 606 , the position of the clamping jaw 5 can be limited, and the clamping jaw 5 can be moved. The tension spring 607 pulls the slider 606 to facilitate the resetting of the clamping jaw 5 .

[0047] The driving part includes a transmission 608, a motor 609 and a driving member 610. The driving member 610 is fixed to the outside of the rotating shaft 604 and corresponds to the slider 606. The transmission 608 is connected to the end of the rotating shaft 604 and connected to the motor 609.

[0048] The transmission 608 has a certain locking function, which can lock the angle of the rotating shaft 604, thereby preventing the driving member 610 from loosening at will. The motor 609 drives the rotating shaft 604 to rotate through the transmission 608, thereby driving the driving member 610 to rotate, and then the slider 606 is moved in the guide groove 605, which can drive the clamping claw 5 to clamp the inner side of the rotor 4, thereby positioning the rotor 4.

[0049] The driving member 610 includes a set 611 and a driving rod 612; the driving rod 612 is fixed to the outside of the set 611, and the set 611 is sleeved on the outside of the rotating shaft 604, and the driving rod 612 is set to an arc structure. There are four groups of clamping jaws 5, and four groups of driving rods 612 are correspondingly set. The rotating shaft 604 drives the four groups of driving rods 612 to rotate at the same time, and then the four groups of clamping jaws 5 can be driven to open at the same time to clamp the rotor 4.

[0050] Specifically, Figure 1-2 As shown, when transferring the magnetic steel, the following steps are included:

[0051] S1. Tooling assembly:

[0052] S1.1, install the movable clamping plate 3 on the workbench;

[0053] S1.2, install the clamping plate 3 corresponding to the adjustable clamping jaw 5 on the workbench;

[0054] S2, fixed rotor 4:

[0055] S2.1, put the rotor 4 on the outside of the clamping jaw 5 and place it on the inner side of the clamping plate 3;

[0056] S2.2, adjusting the clamping jaws 5 to clamp on the inner side of the rotor 4;

[0057] S2.3, the adjusting clamp 3 is clamped on the outer side of the rotor 4;

[0058] S3. Magnetic steel assembly:

[0059] S3.1. Alternately stick the N and S poles of the four groups of magnetic steels 2 to the inner side of the rotor 4;

[0060] S3.2, bonding the slot wedge 1 to the inner side of the rotor 4 against the magnetic steel 2;

[0061] S3.3, loosen the clamping plate 3 and the clamping jaw 5, and adjust the angle of the rotor 4;

[0062] S3.4, repeat steps S3.1 and S3.2 to fill the rotor 4 with magnetic steel 2.

[0063] In this embodiment, the rotor of the hub motor is placed between two clamping plates, and then the claws are operated to tighten the inner hole of the hub motor rotor outward until it is completely fixed. Then, four N and S grade magnetic steels are alternately pasted on the inside of the rotor, and then fixed-size slot wedges are glued. This step is repeated until the inside of the rotor is completely filled with magnetic steels, which facilitates the positioning of the rotor and improves the assembly efficiency of the magnetic steels.

[0064] Finally, it should be noted that the above 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for assembling a hub motor magnetic steel, characterized in that: The steps include: S1. Tooling assembly: S1.

1. Install the movable clamp on the workbench; S1.

2. Install the clamping plate corresponding to the adjusting jaw on the workbench; S2, fixed rotor: S2.

1. Put the rotor on the outside of the clamp and place it on the inside of the clamp; S2.2, adjust the clamping jaws to clamp on the inner side of the rotor; S2.3, the adjusting clamp is clamped on the outer side of the rotor; S3. Magnetic steel assembly: S3.

1. Alternately stick the N and S poles of the four sets of magnetic steels on the inner side of the rotor; S3.2, stick the magnetic steel to the inner side of the rotor to bond the slot wedge; S3.3, loosen the clamping plate and the clamping claw, and adjust the rotor angle; S3.4, repeat steps S3.1 and S3.2 to fill the rotor with magnetic steel; The tooling includes a workbench, a splint and a clamp, and the splint and the clamp are both arranged on the workbench; the splint is arranged in two groups and is connected to the workbench through a movable part; the clamp is connected to a fixed plate, and an adjustment component is provided on the fixed plate; the lower ends of the two groups of splints are fixed on the slide of an electric slide, and the electric slide is installed on the workbench; the adjustment component includes a height adjustment part and a clamp adjustment part, the height adjustment part is connected to the bottom of the fixed plate, and the clamp adjustment part is connected to the surface of the fixed plate.

2. A method for assembling a hub motor magnetic steel according to claim 1, characterized in that: The height adjustment part comprises: an electric push rod; the base end of the electric push rod is installed on the workbench, and the working end is connected to the bottom of the fixed plate; a positioning part is arranged between the fixed plate and the workbench.

3. A method for assembling a hub motor magnetic steel according to claim 2, characterized in that: The positioning part comprises a positioning rod and a positioning hole, wherein the positioning rod is inserted into the positioning hole; the positioning hole is formed at the bottom of the fixing plate, and the lower end of the positioning rod is fixed on the top of the workbench.

4. A method for assembling magnetic steel of a hub motor according to claim 3, characterized in that: The clamping jaw adjusting part comprises a clamping jaw guiding part, a rotating shaft and a driving part. The clamping jaw is connected to a fixed plate through the clamping jaw guiding part. The rotating shaft is rotatably mounted on the fixed plate. The driving part is connected to the rotating shaft.

5. The method for assembling the magnetic steel of a hub motor according to claim 4, characterized in that: The clamping jaw guide portion comprises a guide groove and a slider, the slider is slidably connected in the guide groove, one end of the clamping jaw is fixed to one side of the slider, and a tension spring is connected between the bottom of the slider and the bottom of the guide groove.

6. A method for assembling magnetic steel of a hub motor according to claim 5, characterized in that: The driving part includes a transmission, a motor and a driving member; the driving member is fixed to the outside of the rotating shaft and corresponds to the slider; the transmission is connected to the end of the rotating shaft and is connected to the motor.

7. A method for assembling magnetic steel of a hub motor according to claim 6, characterized in that: The driving member comprises a sleeve and a driving rod; the driving rod is fixed to the outside of the sleeve, the sleeve is sleeved on the outside of the rotating shaft, and the driving rod is arranged as an arc structure.

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