Rotor magnetizing device and magnetizing method

Abstract

The invention relates to a rotor magnetizing device and method, the rotor magnetizing device comprises a base, a clamping mechanism and a magnetizing mechanism, and the base is fixedly connected to the ground; the clamping mechanism is rotationally connected to the base and rotates around a rotating shaft relative to the base, and the rotating shaft is perpendicular to the base. The magnetizing mechanism is movably connected to the base and can move in the direction close to or away from the clamping mechanism. Wherein the clamping mechanism is used for clamping a rotor to be magnetized, and the magnetizing mechanism is used for magnetizing the rotor. The rotating shaft of the clamping mechanism is arranged to be perpendicular to the base, that is, the rotating shaft of the clamping mechanism is arranged to be in the vertical direction, so that the gravity influence of the magnetizing rotor is mainly concentrated on the clamping mechanism instead of keeping rotating balance. In this way, in the magnetizing process, the magnetizing rotor is kept balanced all the time, and therefore the magnetizing effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of wind generator rotor magnetization, and in particular to a rotor magnetization device and a magnetization method. Background Art

[0002] As a strategic emerging industry, wind power generation is the most cost-effective green energy. As my country is stepping up efforts to implement carbon neutrality and optimize its energy structure, wind power generation has ushered in a new period of development opportunities. At present, wind power generation models have a trend of offshore, large-scale, and permanent magnetization. Onshore wind energy resources have gradually been exhausted. In order to increase economic benefits, improve wind energy utilization and the overall power generation efficiency of wind farms, permanent magnet synchronous generators with simpler structures have become the main force of offshore wind power generation. The magnetic poles of permanent magnet synchronous generators are usually spliced ​​together from multiple pieces of magnetic steel. Efficiently magnetized magnetic steel can improve the uniformity and consistency of the magnetic circuit and reduce hysteresis losses.

[0003] The production method of domestic wind turbines is to assemble magnetized magnetic steel into rotors in the motor factory. With the development of large-scale permanent magnet wind turbines, the electromagnetic design of the rotor has higher and higher requirements on the performance of the magnetic steel, and the difficulty of the manufacturing process and steps has also increased accordingly. Therefore, the technical means of installing non-magnetic magnetic steel on the motor and magnetizing the magnetic steel as a whole through electromagnetic coils can not only improve the consistency of the magnetic energy of the magnetic steel, simplify the assembly process and production efficiency of the motor, but also improve the reliability of permanent magnet generator products, and better meet the high-quality and automated production requirements of high-power permanent magnet motors.

[0004] In the prior art, a horizontal magnetization structure is usually adopted for the rotor. Since the rotor size specifications are inconsistent, the center of gravity of the rotor cannot be located at the center of the shaft without replacing the shaft, so that the shaft cannot remain horizontal during rotation, thereby affecting the magnetization effect. Summary of the invention

[0005] Based on this, it is necessary to provide a rotor magnetizing device and a magnetizing method to address the technical problem that the horizontal rotating platform in the prior art cannot make the center of gravity of the rotor located at the center of the rotating shaft, thereby causing the rotating shaft to be unable to maintain balance during rotation.

[0006] A rotor magnetizing device, the rotor magnetizing device comprising:

[0007] A base, fixedly connected to the ground;

[0008] A clamping mechanism, rotatably connected to the base, the clamping mechanism rotates relative to the base around a rotation axis, and the rotation axis is perpendicular to the base;

[0009] A magnetizing mechanism, movably connected to the base, and capable of moving toward or away from the clamping mechanism;

[0010] Wherein, the clamping mechanism is used to clamp the rotor to be magnetized, and the magnetizing mechanism is used to magnetize the rotor.

[0011] In one embodiment, the clamping mechanism comprises:

[0012] A rotating bracket, one end of which is fixedly connected to the base and the other end of which extends away from the base;

[0013] A rotating platform, rotatably connected to an end of the rotating bracket away from the base;

[0014] A clamping flange is fixedly connected to the rotating platform, and the clamping flange is used to fix the rotor.

[0015] In one embodiment, the magnetizing mechanism comprises:

[0016] A support frame movably connected to the base;

[0017] The magnetizing component is arranged on the side of the support frame facing the clamping mechanism, the magnetizing component is connected to the support frame, and the magnetizing component can move along the vertical direction of the support frame.

[0018] In one embodiment, the magnetizing component includes:

[0019] A support plate, movably connected to the support frame;

[0020] A magnetizing coil connected to the support plate;

[0021] The magnetizing coil is constructed as a racetrack-shaped coil wound by a copper tube, and the magnetizing coil includes a water inlet and a water outlet. A cooling water source is connected to the water inlet and the water outlet to cool the magnetizing coil.

[0022] In one embodiment, the magnetizing component further comprises:

[0023] A shock absorbing seat, wherein a plurality of the shock absorbing seats are arranged in an array between the support plate and the magnetizing coil, and the shock absorbing seat is used to absorb the impact kinetic energy received by the magnetizing coil.

[0024] In one embodiment, the magnetizing mechanism further comprises:

[0025] A first drive motor, wherein a motor seat of the first drive motor is fixedly connected to the support frame, an output shaft of the first drive motor is connected to the support plate, and the first drive motor is used to drive the support plate to move relative to the support frame.

[0026] In one embodiment, a first track assembly is provided between the support frame and the support plate, and the first track assembly includes:

[0027] A first track, fixedly connected to a side of the support frame facing the clamping mechanism;

[0028] The first sliding block is fixedly connected to the supporting plate, and the first sliding block is slidably arranged on the first track.

[0029] In one embodiment, the rotor magnetizing device further includes a second track component, the second track component is arranged between the base and the magnetizing mechanism, and the second track component includes:

[0030] A second track, fixedly connected to the base;

[0031] The second slider is fixedly connected to the magnetizing mechanism, and the second slider is slidably arranged on the second track.

[0032] In one embodiment, the rotor magnetizing device further comprises:

[0033] A second drive motor, wherein the motor base of the second drive motor is fixedly connected to the base, the output shaft of the second drive motor is connected to the magnetizing mechanism, and the second drive motor is used to drive the magnetizing mechanism to move relative to the base.

[0034] A rotor magnetizing method, wherein the rotor magnetizing method uses the rotor magnetizing device as described above to magnetize the rotor, and the rotor magnetizing method comprises:

[0035] Clamp the rotor to the clamping mechanism and mark the initial magnetic pole;

[0036] Adjusting the position of the magnetizing mechanism in the vertical direction, and adjusting the center position of the magnetizing mechanism in the vertical direction to be in the same plane as the center position of the rotor in the vertical direction;

[0037] Adjusting the position of the magnetizing mechanism in the horizontal direction;

[0038] Each magnetic pole on the rotor is magnetized.

[0039] Beneficial effects of the present invention:

[0040] The present invention provides a rotor magnetizing device, wherein the base is used to support a clamping mechanism and a magnetizing mechanism, the clamping mechanism is used to clamp the rotor, and the clamping mechanism is rotatably connected to the base so that the magnetized rotor rotates under the drive of the clamping mechanism. The rotating axis of the clamping mechanism is set to be perpendicular to the base, that is, the rotating axis of the clamping mechanism is set to be along the vertical direction, so that the gravity influence of the magnetized rotor is mainly concentrated on the clamping mechanism, rather than maintaining the rotation balance. In this way, the magnetized rotor always maintains balance during the magnetization process, thereby ensuring the magnetization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] FIG1 is a schematic structural diagram of a rotor magnetizing device provided by an embodiment of the present invention when a magnetizing rotor is installed;

[0042] FIG2 is a schematic structural diagram of a rotor magnetizing device provided by an embodiment of the present invention when a magnetizing rotor is installed in another direction;

[0043] 3 is a schematic structural diagram of a rotor magnetizing device provided by an embodiment of the present invention when a magnetizing rotor is installed at the clamping mechanism end;

[0044] FIG4 is a schematic structural diagram of a rotor magnetizing device provided in one embodiment of the present invention;

[0045] FIG5 is a schematic structural diagram of a rotor magnetizing device provided in an embodiment of the present invention after a clamping mechanism is connected to a base;

[0046] FIG6 is a schematic structural diagram of a rotor magnetizing device provided in an embodiment of the present invention after a magnetizing mechanism is connected to a base;

[0047] FIG. 7 is a schematic flow chart of a rotor magnetization method provided in accordance with an embodiment of the present invention.

[0048] Reference numerals:

[0049] Base 100; anchor cup support 110; lifting ring 120; clamping mechanism 200; rotating bracket 210; rotating platform 220; clamping flange 230; magnetizing mechanism 300; support frame 310; magnetizing assembly 320; support plate 321; magnetizing coil 322; shock absorber seat 323; first drive motor 330; first screw rod 340; first track assembly 350; first track 351; first slider 352; second track assembly 400; second track 410; second slider 420; second drive motor 500; second screw rod 600; climbing frame 700; rotor 800. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0056] 1 to 6 , an embodiment of the present invention provides a rotor magnetizing device, which includes a base 100, a clamping mechanism 200 and a magnetizing mechanism 300. The base 100 is fixedly connected to the ground; the clamping mechanism 200 is rotatably connected to the base 100, and the clamping mechanism 200 rotates relative to the base 100 around a rotation axis, and the rotation axis is perpendicular to the base 100; the magnetizing mechanism 300 is movably connected to the base 100, and the magnetizing mechanism 300 can move toward or away from the clamping mechanism 200; wherein the clamping mechanism 200 is used to clamp the rotor 800 to be magnetized, and the magnetizing mechanism 300 is used to magnetize the rotor 800.

[0057] The technical solution provides a rotor magnetizing device, wherein the base 100 is used to support the clamping mechanism 200 and the magnetizing mechanism 300, and the clamping mechanism 200 is used to clamp the rotor 800. The clamping mechanism 200 is rotatably connected to the base 100, so that the magnetized rotor 800 rotates under the drive of the clamping mechanism 200. The rotation axis of the clamping mechanism 200 is set to be perpendicular to the base 100, that is, the rotation axis of the clamping mechanism 200 is set to be along the vertical direction, so that the gravity influence of the magnetized rotor 800 is mainly concentrated on the clamping mechanism 200, rather than maintaining the rotation balance. In this way, the magnetized rotor 800 always maintains balance during the magnetization process, thereby ensuring the magnetization effect.

[0058] As shown in Figures 1 and 2, specifically, the base 100 is formed by welding two upper and lower carbon steel plates along the intersection. In order to adapt to various models and different weights of permanent magnet rotors 800, the base 100 needs to have a certain load-bearing capacity. The upper carbon steel plate is a whole carbon steel plate, and the lower carbon steel plate is slightly smaller in length and width than the upper steel plate but thicker. This arrangement, on the one hand, makes the chassis of the base 100 more stable, and on the other hand, a receiving recess can be formed between the upper and lower carbon steel plates. The anchor cup support 110 is fixedly installed in the receiving recess. There are several square weight-reducing grooves in the middle of the lower carbon steel plate, which can appropriately reduce the weight of the magnetizing device and save the overall manufacturing cost while ensuring the reasonable load-bearing structure of the rotor 800 rotating unit. There are threaded holes on both sides of the lower carbon steel plate for matching and connecting the anchor cup support 110. The anchor cup support 110 is fastened to the carbon steel plate below by bolts. In addition, the anchor cup support 110 can adjust the level of the upper end surface of the base 100 by adjusting the height of the anchor cup. The upper surface of the upper carbon steel plate has four corner areas with threaded holes, which can be installed with a lifting ring 120 for lifting and transporting the magnetizing device.

[0059] As shown in Figures 1, 2, 4 and 5, in one embodiment, the clamping mechanism 200 includes a rotating bracket 210, a rotating platform 220 and a clamping flange 230, one end of the rotating bracket 210 is fixedly connected to the base 100, and the other end extends in a direction away from the base 100; the rotating platform 220 is rotatably connected to the end of the rotating bracket 210 away from the base 100; the clamping flange 230 is fixedly connected to the rotating platform 220, and the clamping flange 230 is used to fix the rotor 800.

[0060] The rotating bracket 210 is used to support the rotating platform 220 and the clamping flange 230. Specifically, a plurality of mounting holes for mounting the rotating bracket 210 are opened at one end of the upper carbon steel plate. The mounting flange on the rotating bracket 210 is fastened to the mounting hole by bolts, thereby realizing the fixed connection between the rotating bracket 210 and the base 100. The rotating platform 220 is connected to the rotating bracket 210 through a bearing, so that the rotating platform 220 can rotate relative to the rotating bracket 210. The flange plate of the clamping flange 230 is fixedly connected to the rotating platform 220 by bolts. When the rotating platform 220 rotates relative to the rotating bracket 210, the clamping flange 230 is driven to rotate, thereby driving the magnetizing rotor 800 clamped on the clamping flange 230 to rotate. Specifically, the rotating platform 220 adopts a hollow rotating platform 220, which can realize high-precision rotation and can complete precise positioning control; and it runs smoothly, with low noise and small vibration during operation, which is conducive to ensuring the magnetization effect. In addition, the hollow rotating platform 220 has the advantages of compact structure and small space occupation. In this embodiment, the clamping flange 230 adopts a variable diameter flange, so that the clamping flange 230 can adapt to rotors 800 of different specifications, thereby increasing the application range of the rotor magnetizing device.

[0061] As shown in Figures 1 to 4 and Figure 6, in one embodiment, the magnetizing mechanism 300 includes a support frame 310 and a magnetizing component 320. The support frame 310 is movably connected to the base 100; the magnetizing component 320 is arranged on the side of the support frame 310 facing the clamping mechanism 200, and the magnetizing component 320 is connected to the support frame 310. The magnetizing component 320 can move along the vertical direction of the support frame 310.

[0062] The support frame 310 is used to support the magnetizing assembly 320 to ensure that the magnetizing process can run stably. The support frame 310 is movably connected to the base 100 so that the magnetizing assembly 320 can move relative to the base 100 driven by the support frame 310. The magnetizing assembly 320 is used to magnetize the rotor 800 to be magnetized. The magnetizing assembly 320 is arranged on the side of the support frame 310 facing the clamping mechanism 200 to magnetize the magnetizing rotor 800. The magnetizing assembly 320 can move along the vertical direction of the support frame 310 so that when the magnetizing rotor 800 is magnetized, the height of the magnetizing assembly 320 can be adjusted by moving the magnetizing assembly 320 relative to the support frame 310, so that the height of the magnetizing assembly 320 is adapted to the height of the rotor 800 to be magnetized, thereby ensuring the magnetization effect.

[0063] Specifically, the support frame 310 is welded from a plurality of steel plates, and the cross-sectional shape of the support frame 310 is roughly trapezoidal, wherein the side facing the clamping mechanism 200 is a large plane, and the thickness of the support frame 310 gradually decreases from bottom to top. A cover plate is provided on the peripheral side of the support frame 310 to seal the support frame 310 to prevent dust accumulation inside the support frame 310. A cable climbing frame 700 is installed on the upper end surface of the support frame 310 for fixing the incoming and outgoing cables for the excitation of the magnetizing coil 322, and two hoisting rings 120 are provided on the side of the cable climbing frame 700 to facilitate the hoisting and assembly of the magnetizing equipment.

[0064] As shown in Figures 1 to 4 and Figure 6, specifically, the magnetizing assembly 320 includes a support plate 321 and a magnetizing coil 322, the support plate 321 is movably connected to the support frame 310; the magnetizing coil 322 is connected to the support plate 321; wherein, the magnetizing coil 322 is constructed as a runway-shaped coil wound by a copper tube, the magnetizing coil 322 includes a water inlet and a water outlet, and a cooling water source is connected to the water inlet and the water outlet to cool the magnetizing coil 322.

[0065] The support plate 321 is used to support the magnetizing coil 322, and the support plate 321 is movably connected to the support frame 310, so that the support plate 321 can move relative to the support frame 310, thereby driving the magnetizing coil 322 to move relative to the support frame 310. Specifically, the support plate 321 can move in the vertical direction relative to the support frame 310. The magnetizing coil 322 is a runway-shaped coil wound by a flat copper tube. By arranging a water inlet and a water outlet on the magnetizing coil 322, and connecting the cooling water source with the water inlet and the water outlet, the magnetizing coil 322 is cooled, thereby improving the magnetization efficiency. The cooling water source is a chiller, and the magnetizing coil 322 can be circulated and cooled by the chiller.

[0066] Specifically, after the flat copper tube is reinforced and wound using a special tooling skeleton, it is dried and demolded, and then placed in the epoxy material magnetizing coil 322 shell, where the outlet of the shell corresponds to the coil. After the magnetizing coil 322 is rigidly connected to the shell by bolts, the shell is sealed as a whole with glass glue, and finally the inside of the shell is filled with vacuum glue. The magnetizing coil 322 provided in this embodiment has the following properties: the unipolar magnetizing coil can achieve saturation magnetization of the target pole without affecting the magnetization state of the adjacent pole; the temperature of the coil can return to a stable state within a specified period after the magnetization of one pole of the rotor 800 is completed; the mechanical properties of the coil such as elastic plasticity and structure meet the design requirements, and the water and circuit outlets are separated.

[0067] As shown in FIGS. 1 to 4 and 6 , in one embodiment, the magnetizing assembly 320 further includes a shock absorbing seat 323 , and a plurality of shock absorbing seats 323 are arranged in an array between the support plate 321 and the magnetizing coil 322 , and the shock absorbing seats 323 are used to absorb the impact kinetic energy received by the magnetizing coil 322 .

[0068] Specifically, the shock absorber seat 323 is a nylon shock absorber seat 323, and the back plate of the magnetizing coil 322 and the coil support plate 321 are connected by multiple nylon shock absorber seats 323. After the device is magnetized, the magnetic poles of the rotor 800 are magnetized in the same direction as the magnetic field generated by the magnetizing coil 322, so a huge reverse repulsive force is generated in an instant, so it needs to be alleviated with the help of the nylon shock absorber seat 323.

[0069] As shown in Figures 1 to 4 and Figure 6, in one embodiment, the magnetizing mechanism 300 also includes a first drive motor 330, the motor base of the first drive motor 330 is fixedly connected to the support frame 310, the output shaft of the first drive motor 330 is connected to the support plate 321, and the first drive motor 330 is used to drive the support plate 321 to move relative to the support frame 310.

[0070] Specifically, the motor seat of the first drive motor 330 is fixedly connected to the top of the support frame 310, the motor shaft of the first drive motor 330 is fixedly connected to the first screw rod 340, the first drive block is fixedly connected to the support plate 321, and the first screw rod 340 is in transmission connection with the first drive block. When the first drive motor 330 is started, the motor shaft drives the first screw rod 340 to rotate, thereby driving the first drive block to move, and then driving the support plate 321 to move relative to the support frame 310.

[0071] As shown in Figures 1 to 4 and Figure 6, in one embodiment, a first rail 351 assembly 350 is arranged between the support frame 310 and the support plate 321, and the first rail 351 assembly 350 includes a first rail 351 and a first slider 352, the first rail 351 is fixedly connected to the side of the support frame 310 facing the clamping mechanism 200; the first slider 352 is fixedly connected to the support plate 321, and the first slider 352 is slidably arranged on the first rail 351.

[0072] By providing a first rail 351 assembly 350 between the support frame 310 and the support plate 321, the movement of the support plate 321 relative to the support frame 310 is guided, so that the support plate 321 can move more reliably relative to the support frame 310. In this embodiment, two spaced first rails 351 are provided on the side of the support frame 310 facing the clamping mechanism 200, and two first sliders 352 are correspondingly provided on the support plate 321, and the first sliders 352 are guided and matched with the first rails 351. Two spaced first rail 351 assemblies 350 are provided to make the movement of the support plate 321 relative to the support frame 310 more stable.

[0073] As shown in Figures 1 to 5, in one embodiment, the rotor magnetizing device also includes a second track 410 component 400, which is arranged between the base 100 and the magnetizing mechanism 300. The second track 410 component 400 includes a second track 410 and a second slider 420. The second track 410 is fixedly connected to the base 100; the second slider 420 is fixedly connected to the magnetizing mechanism 300, and the second slider 420 is slidably arranged on the second track 410.

[0074] The second rail 410 assembly 400 is provided between the base 100 and the magnetizing mechanism 300 to guide the movement of the magnetizing mechanism 300 relative to the base 100. Specifically, the second rail 410 is provided on the base 100, and the second slider 420 is fixedly connected to the support frame 310. Two spaced second rails 410 are provided on the base 100, and two spaced second sliders 420 are provided on the support frame 310. The second sliders 420 correspond to the second rails 410, and the two are guided and matched.

[0075] Further, the rotor magnetizing device also includes a second drive motor 500, the motor base of the second drive motor 500 is fixedly connected to the base 100, the output shaft of the second drive motor 500 is connected to the magnetizing mechanism 300, and the second drive motor 500 is used to drive the magnetizing mechanism 300 to move relative to the base 100. The magnetizing assembly 320 is driven to move relative to the base 100 by the second drive motor 500. Specifically, the motor base of the second drive motor 500 is fixedly connected to the base 100, the second screw 600 is fixedly connected to the motor shaft of the second drive motor 500, the second drive block is fixedly connected to the bottom of the support frame 310, and the second screw 600 is in transmission cooperation with the second drive block.

[0076] As shown in FIG. 7 , an embodiment of the present invention further provides a rotor magnetization method. The rotor magnetization method uses a rotor magnetization device as shown to magnetize the rotor. The rotor magnetization method includes:

[0077] S100, clamping the rotor on the clamping mechanism and marking the initial magnetic pole;

[0078] S200, adjusting the position of the magnetizing mechanism in the vertical direction, and adjusting the center position of the magnetizing mechanism in the vertical direction to be in the same plane as the center position of the rotor in the vertical direction;

[0079] S300, adjusting the position of the magnetizing mechanism in the horizontal direction;

[0080] S400, magnetizing each magnetic pole on the rotor.

[0081] Specifically, before clamping the rotor to the clamping mechanism and marking the initial magnetic pole, the magnetizing coil and the support plate need to be connected through the nylon shock-absorbing seat, and the circuit and water circuit of the magnetizing coil need to be connected at the same time to ensure that the connection is safe and reliable, and a simple water circuit circulation test is performed to determine that there is no water leakage in the device. Test that the action logic of the rotor rotation unit and the coil propulsion unit is normal. Then clamp the rotor to be magnetized on the clamping mechanism and mark the initial magnetic pole.

[0082] Then, according to the specifications of the rotor and the magnetizing coil, it is determined that the rotor to be magnetized and the magnetizing coil have their center positions in the vertical direction in the same plane. Specifically, the first drive motor drives the support plate to move relative to the support frame, thereby adjusting the height of the magnetizing coil, and then adjusting the magnetizing coil and the magnetizing position of the rotor to be magnetized to the same plane.

[0083] Start the second drive motor to drive the support frame to move toward the clamping mechanism, then start the power supply of the magnetizing coil to magnetize the initial magnetic poles of the rotor. When the magnetizing power supply is started, the magnetizing device is in working state. During the magnetizing process, the motor on the hollow rotating platform drives the hollow rotating platform to rotate, thereby driving the rotor to rotate, and then magnetizing all the magnetic poles on the rotor.

[0084] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A rotor magnetizing device, characterized in that: The rotor magnetizing device comprises: A base, fixedly connected to the ground; A clamping mechanism, rotatably connected to the base, the clamping mechanism rotates relative to the base around a rotation axis, and the rotation axis is perpendicular to the base; A magnetizing mechanism, movably connected to the base, and capable of moving toward or away from the clamping mechanism; Wherein, the clamping mechanism is used to clamp the rotor to be magnetized, and the magnetizing mechanism is used to magnetize the rotor.

2. The rotor magnetizing device according to claim 1, characterized in that: The clamping mechanism comprises: A rotating bracket, one end of which is fixedly connected to the base and the other end of which extends away from the base; A rotating platform, rotatably connected to an end of the rotating bracket away from the base; A clamping flange is fixedly connected to the rotating platform, and the clamping flange is used to fix the rotor.

3. The rotor magnetizing device according to claim 1, characterized in that: The magnetizing mechanism comprises: A support frame movably connected to the base; The magnetizing component is arranged on the side of the support frame facing the clamping mechanism, the magnetizing component is connected to the support frame, and the magnetizing component can move along the vertical direction of the support frame.

4. The rotor magnetizing device according to claim 3, characterized in that: The magnetizing component comprises: A support plate, movably connected to the support frame; A magnetizing coil connected to the support plate; The magnetizing coil is constructed as a racetrack-shaped coil wound by a copper tube, and the magnetizing coil includes a water inlet and a water outlet. A cooling water source is connected to the water inlet and the water outlet to cool the magnetizing coil.

5. The rotor magnetizing device according to claim 4, characterized in that: The magnetizing component also includes: A shock absorbing seat, wherein a plurality of the shock absorbing seats are arranged in an array between the support plate and the magnetizing coil, and the shock absorbing seat is used to absorb the impact kinetic energy received by the magnetizing coil.

6. The rotor magnetizing device according to claim 4, characterized in that: The magnetizing mechanism also includes: A first drive motor, wherein a motor seat of the first drive motor is fixedly connected to the support frame, an output shaft of the first drive motor is connected to the support plate, and the first drive motor is used to drive the support plate to move relative to the support frame.

7. The rotor magnetizing device according to claim 4, characterized in that: A first track assembly is arranged between the support frame and the support plate, and the first track assembly comprises: A first track, fixedly connected to a side of the support frame facing the clamping mechanism; The first sliding block is fixedly connected to the supporting plate, and the first sliding block is slidably arranged on the first track.

8. The rotor magnetizing device according to any one of claims 1 to 7, characterized in that: The rotor magnetizing device further comprises a second track assembly, wherein the second track assembly is arranged between the base and the magnetizing mechanism, and the second track assembly comprises: A second track, fixedly connected to the base; The second slider is fixedly connected to the magnetizing mechanism, and the second slider is slidably arranged on the second track.

9. The rotor magnetizing device according to claim 8, characterized in that: The rotor magnetizing device also includes: A second drive motor, wherein the motor base of the second drive motor is fixedly connected to the base, the output shaft of the second drive motor is connected to the magnetizing mechanism, and the second drive motor is used to drive the magnetizing mechanism to move relative to the base.

10. A rotor magnetization method, characterized in that: The rotor magnetizing method uses the rotor magnetizing device according to any one of claims 1 to 9 to magnetize the rotor, and the rotor magnetizing method includes: Clamp the rotor to the clamping mechanism and mark the initial magnetic pole; Adjusting the position of the magnetizing mechanism in the vertical direction, and adjusting the center position of the magnetizing mechanism in the vertical direction to be in the same plane as the center position of the rotor in the vertical direction; Adjusting the position of the magnetizing mechanism in the horizontal direction; Each magnetic pole on the rotor is magnetized.

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