Self-adjusting bearing device of magnetic suspension breeze generator

Abstract

The utility model provides a self-adjusting bearing device of a magnetic suspension breeze generator, and relates to the technical field of magnetic suspension breeze generators. The device comprises a magnetic suspension breeze generator stator supporting assembly, a rotor suspension assembly, a rotating shaft rod and an inner diameter adjusting assembly. The inner circle surface of the magnetic suspension breeze generator stator supporting assembly is rotationally connected with a rotor suspension assembly, a rotating shaft rod penetrates through the rotor suspension assembly, and a plurality of inner diameter adjusting assemblies are arranged on the inner circle surface of the rotor suspension assembly in the circumferential direction. The inner diameter adjusting assembly comprises an abutting block, and the abutting block is provided with a stabilizing assembly. The device can be easily adapted to various fan main shafts with different diameters, the whole bearing does not need to be frequently replaced in the actual production and maintenance process, the assembling flexibility between the bearing and the rotating shaft rod is greatly improved, and the production cost and the maintenance difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic levitation micro-wind generators, in particular to a self-adjusting bearing device for a magnetic levitation micro-wind generator. Background Technique

[0002] With the urgent global demand for clean energy and the continuous enhancement of environmental awareness, wind power generation, as an important way to utilize renewable energy, has received extensive attention and vigorous development. Magnetic levitation micro-wind generators integrate multiple disciplinary technologies and are made of special materials.

[0003] The working principle of a magnetic levitation micro-wind generator is to use magnetic levitation technology to suspend the motor rotor, which rotates under the action of wind to cut magnetic induction lines to generate alternating current, and has the characteristics of starting in gentle breeze, high-efficiency power generation, stable operation, and safe use.

[0004] Among the many key components of a magnetic levitation micro-wind generator, the bearing device plays a crucial role, which directly affects the performance, stability, and service life of the generator.

[0005] In the bearing design of traditional magnetic levitation micro-wind generators, the inner diameter of the stator support assembly is usually a fixed size and cannot be adjusted. At the same time, the diameter of the used shaft cannot be adjusted either. When facing the fan main shaft of a non-corresponding diameter model, the shaft and the stator support assembly cannot be fitted and fixed, resulting in the inability to assemble according to the fan main shafts of different diameter models. There are certain limitations in the assembly of the two, and the bearing has the disadvantage of low use flexibility, that is, the size of a bearing faces the problem of limited matching main shaft diameter range. Therefore, there is room for improvement. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide a self-adjusting bearing device for a magnetic levitation micro-wind generator aiming at the above-mentioned deficiencies of the prior art, which can adjust and adapt to fan main shafts of different diameter models, improve the flexibility of fan main shaft assembly, reduce the replacement cost caused by the mismatch between the shaft and the bearing, enhance the applicability of the magnetic levitation micro-wind generator under different working conditions, and thus improve the efficiency and stability of the overall power generation system.

[0007] To solve the above technical problem, the technical solution adopted by the utility model is: a self-adjusting bearing device for a magnetic levitation micro-wind generator, including a stator support assembly of a magnetic levitation micro-wind generator, a rotor levitation assembly, a rotating shaft rod, and an inner diameter adjusting assembly;

[0008] The inner circular surface of the stator support assembly of the magnetic levitation micro-wind generator is rotatably connected to the rotor levitation assembly. The rotating shaft rod passes through the rotor levitation assembly, and a plurality of inner diameter adjusting assemblies are arranged along the circumferential direction on the inner circular surface of the rotor levitation assembly;

[0009] The inner diameter adjustment assembly includes an abutting block, and a stabilizing assembly is installed on the abutting block.

[0010] Preferably, an adjusting rod is installed on the surface of the abutting block, an adjusting groove is formed inside the rotor suspension assembly, and the adjusting rod slides in the adjusting groove.

[0011] Preferably, a limiting disk is installed at one end of the adjusting rod that is slidably connected inside the adjusting groove. A return spring is sleeved on the surface of the adjusting rod. One end of the return spring is connected to the limiting disk, and the other end of the return spring is installed in the adjusting groove.

[0012] Preferably, a pushing plate is installed on the surface of the limiting disk. A sliding groove adapted to the pushing plate is formed on the surface of the rotor suspension assembly, and the pushing plate is slidably connected in the sliding groove formed on the surface of the rotor suspension assembly. The pushing plate is connected to a connecting bar arranged outside the rotor suspension assembly.

[0013] Preferably, a clamping groove is formed on the surface of the abutting block, and the clamping groove is concave in an arc shape.

[0014] Preferably, the stabilizing assembly includes clamping plates. Grooves are symmetrically formed on both sides of the abutting block. The clamping plates are rotatably connected in the grooves through movable rods. A torsion spring is installed on the surface of the movable rod. One end of the torsion spring is fixed to the clamping plate, and the other end of the torsion spring is fixed to the groove.

[0015] Preferably, the outer end of the clamping plate is convex.

[0016] Preferably, diameter values are marked on the surface of the rotor suspension assembly.

[0017] Preferably, friction plates are installed on the surfaces where the abutting block and the clamping plate are attached to the surface of the rotating shaft rod.

[0018] The beneficial effects of adopting the above technical solutions are as follows: The self-adjusting bearing device of a magnetic levitation micro-wind generator provided by the present utility model can easily adapt to fan main shafts of various different diameters compared with traditional bearings with a fixed inner diameter. During actual production and maintenance, there is no need to frequently replace the entire bearing, which greatly improves the flexibility of the assembly between the bearing and the rotating shaft rod, reduces the production cost and maintenance difficulty.

[0019] The setting of the stabilizing assembly makes the rotating shaft rod more stable during operation, effectively avoiding the situation that the normal operation of the magnetic levitation micro-wind generator is affected due to the position deviation of the rotating shaft rod, improving the stability and reliability of the power generation system, and thus enhancing the power generation efficiency. By marking the diameter values on the surface of the rotor suspension assembly and the cooperation between the connecting bar and the pushing plate, it is more convenient for operators during assembly and debugging, reduces operation errors, and improves work efficiency. Description of the Drawings

[0020] Figure 1 Structural schematic diagram of a self - adjusting bearing device of a magnetic levitation micro - wind generator provided by an embodiment of the present utility model;

[0021] Figure 2 Cross - sectional structural schematic diagram of a rotor levitation assembly provided by an embodiment of the present utility model;

[0022] Figure 3 Partial structural schematic diagram of a rotor levitation assembly provided by an embodiment of the present utility model;

[0023] Figure 4 Structural schematic diagram of an inner diameter adjusting assembly provided by an embodiment of the present utility model;

[0024] Figure 5 Structural schematic diagram of a stabilizing assembly provided by an embodiment of the present utility model.

[0025] 1. Stator support assembly of the magnetic levitation micro - wind generator; 11. Rotor levitation assembly; 12. Rotating shaft rod; 2. Inner diameter adjusting assembly; 21. Abutting block; 22. Adjusting rod; 23. Adjusting groove; 24. Clamping groove; 25. Limiting disc; 26. Return spring; 27. Pushing plate; 28. Connecting strip; 3. Stabilizing assembly; 31. Clamping plate; 32. Movable rod; 33. Torsion spring; 34. Friction plate. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Such as Figures 1 to 5As shown in the figure, the utility model provides a self-adjusting bearing device for a maglev micro-wind generator, which includes a stator support assembly 1 of the maglev micro-wind generator. The inner circular surface of the stator support assembly 1 of the maglev micro-wind generator is rotatably connected with a rotor suspension assembly 11. A rotating shaft rod 12 passes through the rotor suspension assembly 11. A plurality of inner diameter adjusting assemblies 2 are circumferentially arranged on the inner circular surface of the rotor suspension assembly 11. The inner diameter is adjusted through the inner diameter adjusting assembly 2, and the rotor suspension assembly 11 rotates relative to the stator support assembly 1. The stator support assembly 1 of the maglev micro-wind generator is the external support body of the bearing, which is fixedly connected to external equipment and plays a role in stably supporting and protecting the bearing system. The rotating shaft rod 12 is connected to the fan main shaft and drives the fan to rotate, and it is a key component for transmitting power. The inner diameter adjusting assembly 2 includes an abutting block 21. An adjusting rod 22 is installed on the surface of the abutting block 21. An adjusting groove 23 is formed inside the rotor suspension assembly 11. The adjusting rod 22 is slidably connected inside the adjusting groove 23. A clamping groove 24 is formed on the surface of the abutting block 21. The clamping groove 24 is used for clamping and fixing the rotating shaft rod 12. The clamping groove 24 is arc-shaped and concave and fits the rotating shaft rod 12.

[0028] Specifically, a limiting disk 25 is installed at one end of the adjusting rod 22 that is slidably connected inside the adjusting groove 23, so as to limit the position of the adjusting rod 22 and prevent the adjusting rod 22 from falling off during adjustment.

[0029] A return spring 26 is sleeved on the surface of the adjusting rod 22. One end of the return spring 26 is connected to the limiting disk 25, and the other end of the return spring 26 is installed inside the adjusting groove 23, so as to reset the position of the adjusting rod 22 and facilitate the operation of the operator.

[0030] Furthermore, a pushing plate 27 is installed on the surface of the limiting disk 25. A sliding groove adapted to the pushing plate 27 is formed on the surface of the rotor suspension assembly 11. The pushing plate 27 is slidably connected in the sliding groove formed on the surface of the rotor suspension assembly 11. One end of the pushing plate 27 penetrates the rotor suspension assembly 11 and extends to the outside of the rotor suspension assembly 11 and is connected to a connecting strip 28 arranged outside the rotor suspension assembly 11. When it is necessary to adjust the inner diameter of the rotor suspension assembly 11 to adapt to rotating shaft rods 12 of different diameters, the limiting disk 25 is driven to slide in the adjusting groove 23 through the pushing plate 27 and the connecting strip 28, and the limiting disk 25 drives the adjusting rod 22 and the abutting block 21 to move.

[0031] It should be noted that the surface of the rotor suspension assembly 11 is marked with diameter values. The marking is located beside the pushing plate, which can facilitate the operator to directly observe the diameter of the rotating shaft rod 12 and understand the diameter value of the rotating shaft rod 12.

[0032] A stabilizing component 3 is mounted on the surface of the abutting block 21 to stabilize the position of the rotating shaft rod, so as to realize the adjustment process for rotating shaft rods 12 with different diameters, improve the overall adaptability of the bearing, and be able to adjust and adapt the rotating shaft rods 12 of different diameter models of fans, thereby improving the flexibility of the assembly between the bearing and the rotating shaft rod 12.

[0033] The stabilizing component 3 includes a clamping plate 31. The clamping plate 31 is arranged in a groove formed on the surface of the abutting block 21. A movable rod 32 is mounted on the surface of the clamping plate 31. Both ends of the movable rod 32 penetrate through the clamping plate 31 and are rotatably connected in the groove formed on the surface of the abutting block 21. The outer end of the clamping plate 31 is convex, and the outer end of the clamping plate 31 is in contact with the rotating shaft rod 12 for clamping and stabilizing the position of the rotating shaft rod 12. A torsion spring 33 is mounted on the surface of the movable rod 32. One end of the torsion spring 33 is connected to the clamping plate 31, and the other end of the torsion spring 33 is mounted in the grooves formed on both sides of the abutting block 21, so as to be able to perform clamping adjustment according to rotating shaft rods 12 with different diameters, greatly improving the adaptation effect of the device, stabilizing the position of the rotating shaft rod 12, and avoiding situations such as position detachment of the rotating shaft rod 12 during operation, which affects the normal use of the device.

[0034] It should be emphasized that friction plates 34 are mounted on the surfaces of the abutting block 21 and the clamping plate 31 in contact with the rotating shaft rod 12, so that the abutting block 21 and the clamping plate 31 can be closely attached to the rotating shaft rod 12, increasing the friction between the abutting block 21, the clamping plate 31 and the rotating shaft rod 12, and avoiding separation from each other during use.

[0035] Working principle and process: When assembling the rotating shaft rods 12 of fans with different diameters, first, the push plate 27 and the connecting strip 28 are used to drive the limit disk 25 to slide inside the adjustment groove 23. During the sliding process of the limit disk 25, the adjustment rod 22 is driven to move. The limit disk 25 can limit the moving position of the adjustment rod 22 to avoid position deviation of the adjustment rod 22 during movement. As the adjustment rod 22 moves continuously, at this time, the limit disk 25 on the adjustment rod 22 drives the return spring 26 to deform. The return spring 26 can make the adjustment rod 22 return to its original position and can make the abutting block 21 on the adjustment rod 22 closely attached to the surface of the rotating shaft rod 12, further improving the use effect of the device. The clamping groove 24 formed on the surface of the abutting block 21 is closely attached to the rotating shaft rod 12, thereby realizing the clamping and fixing of the rotating shaft rod 12, realizing the adjustment for rotating shaft rods 12 with different diameters, improving the overall adaptability of the bearing, and the flexibility of the assembly with the rotating shaft rod 12.

[0036] When stabilizing the position of the rotating shaft rod 12, the clamping plate 31 clamps the rotating shaft rod 12. Since the outer end of the clamping plate 31 is convex, the convex structure of the clamping plate 31 is in close fit with the rotating shaft rod 12, thereby realizing the stable clamping of the rotating shaft rod 12. When facing rotating shaft rods 12 with different diameters, at this time, the rotating shaft rod 12 pushes the clamping plate 31, causing the clamping plate 31 to rotate in the groove formed on the surface of the abutting block 21. As the movable rod 32 continuously rotates, the movable rod 32 drives the torsion spring 33 to deform at this time. Since the torsion spring 33 can assist the movable rod 32 to reset and can drive the clamping plate 31 to be in close fit with the rotating shaft rod 12, it can realize the clamping adjustment according to rotating shaft rods 12 with different diameters, greatly improving the adaptability of the device, making the position of the rotating shaft rod 12 more stable, and avoiding situations such as the rotating shaft rod 12 breaking away during operation, which affects the normal use of the device.

[0037] In this embodiment, the stator support assembly 1 of the magnetic levitation micro-wind generator is composed of structures such as a central column, a lower bracket, an upper bracket, a support ring, a casing and related connecting components, etc.; the central column is the core load-bearing member, and its lower end is fixed by interference fit with the central hole of the lower bracket through a high-strength locking bolt group, and an annular keyway is provided on the mating surface to prevent rotation. The upper and lower brackets are connected by a carbon fiber cable pre-tightening system, and four groups of aramid fiber braided cables are arranged orthogonally and symmetrically. The support ring is made of invar and forms a closed annular structure by laser welding on the outer edges of the upper and lower brackets. The casing adopts a double-layer vacuum potting structure, with a carbon fiber honeycomb composite material on the inner layer and 304 stainless steel on the outer layer.

[0038] The rotor levitation assembly 11 is composed of structures such as a radial magnetic levitation member and an axial magnetic levitation member, etc.; among them, the radial magnetic levitation member includes laminations, radial electromagnets and a position sensor group. The radial electromagnets are arranged on the outer side wall of the laminations, and the position sensor group is installed on the outer side wall of the radial electromagnets. The position sensor group includes a first position sensor and a third position sensor, which are respectively used to detect the positions of the radial electromagnets in the first radial magnetic levitation member and the second radial magnetic levitation member;

[0039] The axial magnetic levitation member includes an axial limiting disc, axial electromagnets and a second position sensor. The axial electromagnets are arranged on the outer side walls on both sides of the axial limiting disc, and the second position sensor is installed on the outer side wall of the axial limiting disc to detect the axial relative position of the axial limiting disc.

[0040] The stator support assembly 1 and the rotor levitation assembly 11 in this device are both designed based on the existing public technologies, and their implementation methods and operation methods can refer to the public technical solutions.

[0041] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of the present invention.

Claims

1. A self-adjusting bearing device for a maglev micro-wind generator, characterized in that: It includes a stator support assembly, a rotor suspension assembly, a rotating shaft rod, and an inner diameter adjustment assembly of a maglev micro-wind generator; The inner circular surface of the stator support assembly of the maglev micro-wind generator is rotatably connected to the rotor suspension assembly. The rotating shaft rod passes through the rotor suspension assembly, and a number of inner diameter adjustment assemblies are circumferentially arranged on the inner circular surface of the rotor suspension assembly; The inner diameter adjustment assembly includes an abutting block, and a stabilizing assembly is installed on the abutting block.

2. The self-adjusting bearing device of a maglev breeze generator according to claim 1, characterized in that: An adjusting rod is installed on the surface of the abutting block. An adjusting groove is opened inside the rotor suspension assembly, and the adjusting rod slides in the adjusting groove.

3. The self-adjusting bearing device of a maglev breeze generator according to claim 2, characterized in that: A limiting disc is installed at one end of the adjusting rod slidingly connected inside the adjusting groove. A return spring is sleeved on the surface of the adjusting rod. One end of the return spring is connected to the limiting disc, and the other end of the return spring is installed in the adjusting groove.

4. The self-adjusting bearing device of a maglev breeze generator according to claim 3, characterized in that: A pushing plate is installed on the surface of the limiting disc. A sliding groove adapted to the pushing plate is opened on the surface of the rotor suspension assembly, and the pushing plate is slidingly connected in the sliding groove opened on the surface of the rotor suspension assembly. The pushing plate is connected to a connecting strip arranged outside the rotor suspension assembly.

5. The self-adjusting bearing device of a maglev breeze generator according to claim 1, characterized in that: A clamping groove is opened on the surface of the abutting block, and the clamping groove is arc-shaped and concave inward.

6. The self-adjusting bearing device of a magnetic levitation breeze generator according to claim 1, characterized in that: The stabilizing assembly includes a clamping plate. Grooves are symmetrically opened on both sides of the abutting block. The clamping plate is rotatably connected to the grooves through movable rods. A torsion spring is installed on the surface of the movable rod. One end of the torsion spring is fixed to the clamping plate, and the other end of the torsion spring is fixed to the groove.

7. The self-adjusting bearing device of a magnetic levitation breeze generator according to claim 6, characterized in that: The outer end of the clamping plate is convex.

8. The self-adjusting bearing device of a maglev breeze generator according to claim 1, characterized in that: The surface of the rotor suspension assembly is marked with diameter values.

9. The self-adjusting bearing device of a magnetic levitation micro-wind generator according to claim 6, characterized in that: Friction sheets are installed on the surfaces where the abutting block and the clamping plate are attached to the surface of the rotating shaft rod.

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