Magnetic pole adjusting mechanism for adjustable air gap of magnetic power generator

Abstract

The utility model relates to the field of generator, disclose a magnetic pole adjusting mechanism of adjustable air gap of magnetic generator, including motor shell, the inner wall rotation of motor shell is connected with the pivot, the outer wall of pivot is fixed with bearing, the inner wall fixed connection of motor shell has stator, the inner surface rotation of stator is connected with rotor core, the surface setting of rotor core and rotor winding, the outer wall of rotor core is set up to have the installation groove, the inner wall of rotor core is set up to have the sliding slot, the inner wall sliding connection of sliding slot has the sliding block, the outer wall fixed connection of sliding block has the adjusting plate, the inner wall sliding connection of rotor core has extrusion rod, the outer wall of extrusion rod is equipped with spring. In the utility model, through being provided with installation groove, adjusting plate, extrusion rod and so on structure, realize the distance adjustment between rotor and stator, and guarantee the stability of adjustment in air gap adjustment, improve the electromagnetic performance and mechanical stability of generator.

Description

Technical Field

[0001] This utility model relates to the field of generators, and more particularly to a magnetic pole adjustment mechanism for an adjustable air gap magnetic generator. Background Technology

[0002] A magnetic generator is a device that generates electrical energy using the interaction between a magnetic field and an electric current. The working principle of a magnetic generator is based on Faraday's law of electromagnetic induction. When a conductor moves or the magnetic field strength changes, an electromotive force (EMF) is generated at the ends of the conductor, thus producing an electric current. When the rotor rotates, it generates a changing magnetic field in the stator. This changing magnetic field induces an EMF in the coils, thereby generating an electric current.

[0003] The air gap refers to the physical gap between the stator and rotor of a generator. In a disc motor, the length of the air gap is changed by adjusting the axial position of the rotor disc, thereby adjusting the magnitude of the air gap magnetic field, achieving field weakening speed regulation or stabilizing the output voltage. The size of the air gap can also be adjusted by controlling the axial displacement of the rotor disc or stator through the rotation of the screw.

[0004] In the prior art, the air gap size is adjusted by adjusting the axial position of the rotor or by rotating the rotor with a screw. However, the traditional screw structure is prone to wear, has low precision, slow response, and cannot adjust the air gap according to different working conditions, which reduces the flexibility and adaptability of the generator. To address these issues, a magnetic pole adjustment mechanism with adjustable air gap for a magnetic generator is proposed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a magnetic pole adjustment mechanism with adjustable air gap for a magnetic generator. It aims to improve the problem that the existing magnetic pole adjustment mechanism with adjustable air gap for magnetic generators cannot perform real-time air gap adjustment, which makes it difficult to adapt to different operating conditions of the generator and reduces the flexibility and adaptability of the generator.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a magnetic pole adjustment mechanism for an adjustable air gap magnetic generator, comprising a motor housing, a rotating shaft rotatably connected to the inner wall of the motor housing, a bearing fixed to the outer wall of the rotating shaft, a stator fixedly connected to the inner wall of the motor housing, a rotor core rotatably connected to the inner surface of the stator, rotor windings disposed on the surface of the rotor core, an installation groove formed on the outer wall of the rotor core, a sliding groove formed on the inner wall of the rotor core, a slider slidably connected to the inner wall of the sliding groove, and a bearing fixedly connected to the outer wall of the slider. The adjusting plate has a pressing rod slidably connected to the inner wall of the rotor core, a spring sleeved on the outer wall of the pressing rod, a support rod slidably connected to the inner surface of the rotor core, a trapezoidal block fixedly connected to the outer wall of the support rod, a moving rod fixedly connected to the outer wall of the trapezoidal block, a ring fixedly connected to the end of the moving rod, an annular groove formed on the side wall of the ring, a moving block slidably connected to the inner wall of the annular groove, a driving rod fixedly connected to the outer wall of the moving block, a driving plate fixedly connected to the end of the driving rod, and a cylinder fixedly connected to the center of the driving plate.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the adjusting plate is adapted to the inner wall of the mounting groove, the pressing rod passes through the rotor core, and the end of the pressing rod is fixedly connected to the side wall of the adjusting plate.

[0009] As a further description of the above technical solution:

[0010] The end of the trapezoidal block closest to the cylinder is higher than the end of the trapezoidal block furthest from the cylinder.

[0011] As a further description of the above technical solution:

[0012] The fixed end of the cylinder is fixedly connected to the outer wall of the motor housing.

[0013] As a further description of the above technical solution:

[0014] The annular groove is formed on the outer wall of the ring on the side closest to the drive rod.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the movable block is rotatably connected to a support shaft, and the end of the support shaft is fixedly connected to a U-shaped frame. The inner wall of the U-shaped frame is rotatably connected to a guide wheel via a rotating rod.

[0017] As a further description of the above technical solution:

[0018] The support shaft is located on the outer wall of the moving block on the side away from the drive rod.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the guide wheel fits into the inner wall of the annular groove.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by cooperating with structures such as mounting groove, adjusting plate, pressing rod, spring, support rod, T-block, ring, drive plate and cylinder, the gap between rotor and stator can be adjusted, and the stability of the adjustment is ensured during the air gap adjustment, thereby improving the electromagnetic performance and mechanical stability of the generator.

[0023] 2. In this utility model, by combining the structure of support shaft, U-shaped frame and guide wheel, the direct friction between the moving block and the ring is reduced by the rotational friction force when the generator is running, thereby ensuring the stability of the adjustment mechanism. Attached Figure Description

[0024] Figure 1 This is a front view schematic diagram of the main structure of the magnetic pole adjustment mechanism for an adjustable air gap magnetic generator proposed in this utility model.

[0025] Figure 2 This is a rear view schematic diagram of the main structure of the magnetic pole adjustment mechanism for an adjustable air gap magnetic generator proposed in this utility model.

[0026] Figure 3 This is a cross-sectional schematic diagram of the main structure of the magnetic pole adjustment mechanism for an adjustable air gap magnetic generator proposed in this utility model.

[0027] Figure 4 This is a partial side view of the magnetic pole adjustment mechanism with adjustable air gap for a magnetic generator proposed in this utility model.

[0028] Figure 5 This is a partial cross-sectional schematic diagram of the main structure of the magnetic pole adjustment mechanism with adjustable air gap for a magnetic generator proposed in this utility model.

[0029] Figure 6 This invention proposes a magnetic pole adjustment mechanism for an adjustable air gap magnetic generator. Figure 5 Enlarged view of region B in the middle;

[0030] Figure 7 This is a cross-sectional schematic diagram of the annular structure of a magnetic pole adjustment mechanism with adjustable air gap for a magnetic generator proposed in this utility model.

[0031] Figure 8 This invention proposes a magnetic pole adjustment mechanism for an adjustable air gap magnetic generator. Figure 7 Enlarged schematic diagram of region B in the middle.

[0032] Legend:

[0033] 1. Motor housing; 2. Bearing; 3. Shaft; 4. Rotor winding; 5. Rotor core; 6. Stator; 7. Mounting slot; 8. Adjusting plate; 9. Slider; 10. Slide groove; 11. Pressing rod; 12. Spring; 13. Trapezoidal block; 14. Support rod; 15. Moving rod; 16. Ring; 17. Annular groove; 18. Moving block; 19. Drive plate; 20. Cylinder; 21. Support shaft; 22. U-shaped frame; 23. Guide wheel; 24. Drive rod. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 1-3 An embodiment of this utility model provides a magnetic pole adjustment mechanism for an adjustable air gap magnetic generator, comprising a motor housing 1, a rotating shaft 3 rotatably connected to the inner wall of the motor housing 1, a bearing 2 fixed to the outer wall of the rotating shaft 3, a stator 6 fixedly connected to the inner wall of the motor housing 1, a rotor core 5 rotatably connected to the inner surface of the stator 6, a rotor winding 4 disposed on the surface of the rotor core 5, and an installation groove 7 provided on the outer wall of the rotor core 5.

[0036] Reference Figures 4-6 The inner wall of the rotor core 5 is provided with a sliding groove 10, and a slider 9 is slidably connected to the inner wall of the sliding groove 10. An adjusting plate 8 is fixedly connected to the outer wall of the slider 9. The material of the adjusting plate 8 is the same as that of the rotor core 5. The outer wall of the adjusting plate 8 is adapted to the inner wall of the mounting groove 7. A pressing rod 11 is slidably connected to the inner wall of the rotor core 5. The pressing rod 11 passes through the rotor core 5. The end of the pressing rod 11 is fixedly connected to the side wall of the adjusting plate 8. A spring 12 is sleeved on the outer wall of the pressing rod 11. One end of the spring 12 is fixedly connected to the inner wall of the rotor core 5, and the other end is fixedly connected to the outer surface of the pressing rod 11. The pressing rod 11 is composed of a set of circular plates and a set of circular rods. Therefore, the pressing rod 11 will not detach from the rotor core 5. A support rod 14 is slidably connected to the inner surface of the rotor core 5. A straight groove is provided on the inner surface of the rotor core 5 to keep the support rod 14 horizontal when it moves.

[0037] Reference Figures 6-8A trapezoidal block 13 is fixedly connected to the outer wall of the support rod 14. The end of the trapezoidal block 13 near the cylinder 20 is higher than the end of the trapezoidal block 13 away from the cylinder 20. When the trapezoidal block 13 is moved towards the rotating shaft 3 by the moving rod 15, its trapezoidal surface can contact the pressing rod 11, thereby allowing the pressing rod 11 to drive the adjusting plate 8 to move a certain distance out of the mounting groove 7. The moving rod 15 is fixedly connected to the outer wall of the trapezoidal block 13, and a ring 16 is fixedly connected to the end of the moving rod 15. An annular groove 17 is opened on the side wall of the ring 16. An annular groove 17 is formed on the outer wall of the ring 16 near the drive rod 24. A movable block 18 is slidably connected to the inner wall of the annular groove 17. When the rotor core 5 rotates, the ring 16 will rotate accordingly. The movable block 18 will slide inside the annular groove 17 to ensure the stability of the drive rod 24. The drive rod 24 is fixedly connected to the outer wall of the movable block 18. A drive plate 19 is fixedly connected to the end of the drive rod 24. A cylinder 20 is fixedly connected to the center of the drive plate 19. The fixed end of the cylinder 20 is fixedly connected to the outer wall of the motor housing 1.

[0038] Reference Figure 8 A support shaft 21 is rotatably connected to the outer wall of the movable block 18. The support shaft 21 is located on the outer wall of the movable block 18 away from the drive rod 24. A U-shaped frame 22 is fixedly connected to the end of the support shaft 21. A guide wheel 23 is rotatably connected to the inner wall of the U-shaped frame 22 through a rotating rod. The outer wall of the guide wheel 23 is in contact with the inner wall of the annular groove 17. When the ring 16 rotates, the guide wheel 23 can rotate in the inner wall of the annular groove 17, reducing the friction between the movable block 18 and the annular groove 17.

[0039] Working principle: When adjusting the air gap, the air pump is connected to an external air pump. The air pump draws in or expels air, causing the output end of the air pump to be forcefully driven to retract or extend the drive plate 19. This causes the drive rod 24 to drive the ring 16 to move forward or backward inside the motor housing 1. The ring 16 controls multiple sets of moving rods 15 to move the trapezoidal block 13 closer to or away from the pressing rod 11. The pressing rod 11 is gradually squeezed or released by the inclined surface of the trapezoidal block 13, causing the spring 12 to be compressed or rebound. This allows the pressing rod 11 to drive the adjusting plate 8, causing it to move the slider 9 within the slide groove 10. This displacement of the adjusting plate 8 within the mounting groove 7 is achieved. When the adjusting plate 8 extends a certain distance out of the mounting groove 7 or is embedded inside the mounting groove 7, the air gap between it and the stator 6 is adjusted. When the motor is in use, the rotating shaft 3 drives the external equipment to rotate, and the rotor core 5 will rotate accordingly. At this time, the ring 16 rotates as well, and the moving block 18 and guide wheel 23 move within the annular groove 17, ensuring the stability of the adjusting plate 8 in adjusting the air gap.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic pole adjustment mechanism with adjustable air gap for a magnetic generator, comprising a motor housing (1), wherein a rotating shaft (3) is rotatably connected to the inner wall of the motor housing (1), a bearing (2) is fixed to the outer wall of the rotating shaft (3), a stator (6) is fixedly connected to the inner wall of the motor housing (1), a rotor core (5) is rotatably connected to the inner surface of the stator (6), and the surface of the rotor core (5) is provided with rotor windings (4), characterized in that: The outer wall of the rotor core (5) is provided with an installation groove (7), and the inner wall of the rotor core (5) is provided with a sliding groove (10). A slider (9) is slidably connected to the inner wall of the sliding groove (10), and an adjusting plate (8) is fixedly connected to the outer wall of the slider (9). A pressing rod (11) is slidably connected to the inner wall of the rotor core (5), and a spring (12) is sleeved on the outer wall of the pressing rod (11). A support rod (14) is slidably connected to the inner surface of the rotor core (5), and a spring (12) is fixedly connected to the outer wall of the support rod (14). A trapezoidal block (13) is provided with a movable rod (15) fixedly connected to its outer wall. A ring (16) is fixedly connected to the end of the movable rod (15). An annular groove (17) is provided on the side wall of the ring (16). A movable block (18) is slidably connected to the inner wall of the annular groove (17). A drive rod (24) is fixedly connected to the outer wall of the movable block (18). A drive plate (19) is fixedly connected to the end of the drive rod (24). A cylinder (20) is fixedly connected to the center of the drive plate (19).

2. The magnetic pole adjustment mechanism for the adjustable air gap of the magnetic generator according to claim 1, characterized in that: The outer wall of the adjusting plate (8) is adapted to the inner wall of the mounting groove (7), the pressing rod (11) passes through the rotor core (5), and the end of the pressing rod (11) is fixedly connected to the side wall of the adjusting plate (8).

3. The magnetic pole adjustment mechanism for the adjustable air gap of the magnetic generator according to claim 1, characterized in that: The end of the trapezoidal block (13) closer to the cylinder (20) is higher than the end of the trapezoidal block (13) farther away from the cylinder (20).

4. The magnetic pole adjustment mechanism for the adjustable air gap of the magnetic generator according to claim 1, characterized in that: The fixed end of the cylinder (20) is fixedly connected to the outer wall of the motor housing (1).

5. The magnetic pole adjustment mechanism for the adjustable air gap of the magnetic generator according to claim 1, characterized in that: The annular groove (17) is formed on the outer wall of the ring (16) near the drive rod (24).

6. The magnetic pole adjustment mechanism for the adjustable air gap of the magnetic generator according to claim 1, characterized in that: The outer wall of the movable block (18) is rotatably connected to a support shaft (21), and the end of the support shaft (21) is fixedly connected to a U-shaped frame (22). The inner wall of the U-shaped frame (22) is rotatably connected to a guide wheel (23) via a rotating rod.

7. The magnetic pole adjustment mechanism for the adjustable air gap of the magnetic generator according to claim 6, characterized in that: The support shaft (21) is located on the outer wall of the moving block (18) away from the drive rod (24).

8. The magnetic pole adjustment mechanism for the adjustable air gap of the magnetic generator according to claim 6, characterized in that: The outer wall of the guide wheel (23) is in contact with the inner wall of the annular groove (17).

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