A magnetic levitation flywheel rotor protection structure with backup braking function

Abstract

This application provides a magnetic levitation flywheel rotor protection structure with backup braking function, belonging to the field of flywheel rotor protection, to solve the problem of inconvenient disassembly and installation of brake pads. It includes a magnetic levitation flywheel rotor and a magnetic bearing housing. A bidirectional threaded rod is rotatably connected to the mounting box, a turntable is fixedly connected to the bidirectional threaded rod, a movable plate is threadedly connected to the bidirectional threaded rod, and a pressing block is fixedly connected to the movable plate. A mounting plate is fixedly connected to the magnetic bearing housing, a hydraulic rod is fixedly connected to the mounting plate, and a fixing box is fixedly connected to the hydraulic rod. This application includes a locking block; when disassembling worn brake pads, the pull rods on both sides of the fixing box can be pulled to move the limiting plate. The limiting plate can compress the spring, lifting and causing the locking block to disengage from the second positioning plate. The unobstructed second positioning plate allows for the removal of the connected brake pads for subsequent replacement.

Description

Technical Field

[0001] This utility model relates to the field of flywheel rotor protection, and more specifically, to a magnetic levitation flywheel rotor protection structure with backup braking function. Background Technology

[0002] The main functions of a magnetically levitated flywheel rotor include improving operational stability and reducing frictional losses. The magnetically levitated flywheel rotor achieves contactless support through electromagnetic force, eliminating the frictional losses of traditional bearings, thereby improving system efficiency and lifespan. Under conditions where the bearings bear all or part of the load, the flywheel rotor should be safely braked to avoid serious damage to the flywheel rotor shaft system.

[0003] However, most current magnetic levitation flywheel rotor protection structures have the following problems:

[0004] For example, the two-stage safety protection structure for a magnetic levitation energy storage flywheel rotor in the event of runaway, as disclosed in publication number 201621199693.2, although the installed ball bearings can relieve the pressure on the bearings and provide auxiliary support, the ball bearings are also prone to wear under long-term friction, affecting the subsequent rotational stability. When disassembling and replacing the ball bearings, multiple bolts need to be removed with tools to disassemble the ball bearing seat and replace the ball bearings, which is quite troublesome and inconvenient for installing and disassembling the support seat. At the same time, in the case of failure of the electromagnetic bearing of the flywheel rotor, it cannot provide an emergency braking effect, resulting in rotor wear and affecting the use effect, making it inconvenient to provide emergency braking protection for the rotor.

[0005] Therefore, we have made improvements to this by proposing a magnetic levitation flywheel rotor protection structure with backup braking function. Utility Model Content

[0006] The purpose of this utility model is to address the current problems of inconvenient installation and disassembly of the support base, as well as the inconvenience in convenient disassembly and installation of the brake pads.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A magnetic levitation flywheel rotor protection structure with backup braking function is proposed to improve the above-mentioned problems.

[0009] The application is as follows:

[0010] The system includes a magnetic levitation flywheel rotor and a magnetic bearing housing. The magnetic bearing housing is mounted on the magnetic levitation flywheel rotor, and a radial magnetic bearing stator is installed inside the magnetic bearing housing. An electromagnetic coil is installed inside the radial magnetic bearing stator. A radial magnetic bearing rotor is fixedly connected to the magnetic levitation flywheel rotor. A support bearing is fixedly connected to the magnetic levitation flywheel rotor. A positioning bearing housing is fixedly connected to the support bearing. A sealing gasket is fixedly connected to the positioning bearing housing. A cover plate is mounted on the positioning bearing housing. A support frame is rotatably connected to the cover plate. A positioning frame is fixedly connected to the support frame. A first positioning plate is fixedly connected to the cover plate. A mounting box is fixedly connected to the positioning bearing housing. A bidirectional threaded rod is rotatably connected to the mounting box. A turntable is fixedly connected to the bidirectional threaded rod. A moving plate is threadedly connected to the bidirectional threaded rod. A pressing block is fixedly connected to the moving plate. A mounting plate is fixedly connected to the magnetic bearing housing. A hydraulic rod is fixedly connected to the mounting plate. A fixing box is fixedly connected to the hydraulic rod.

[0011] As a preferred technical solution of this application, the lifting frame is rotatably connected to the center of the cover plate, and the cross-section of the positioning frame is "+".

[0012] As a preferred technical solution of this application, the side end face of the first positioning plate is inclined, and the top surface of the moving plate is in contact with the top surface inside the mounting box.

[0013] As a preferred technical solution of this application, the movable plates are symmetrically distributed on the left and right sides of the bidirectional threaded rod, and the movable plates correspond one-to-one with the extrusion blocks.

[0014] As a preferred technical solution of this application, a brake pad is provided on the fixed box, a second positioning plate is fixedly connected to the brake pad, a spring is fixedly connected inside the fixed box, a limit plate is fixedly connected to the other end of the spring, and the side of the limit plate is in contact with the inner side of the fixed box.

[0015] As a preferred technical solution of this application, a locking block is fixedly connected to the limiting plate, a pull rod is fixedly connected to the limiting plate, and the springs are symmetrically distributed on the left and right sides inside the fixed box. The springs correspond one-to-one with the locking blocks through the limiting plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application:

[0018] 1. Equipped with a pressing block; when disassembling and replacing the lifting frame and positioning frame, the turntable can be rotated to drive the bidirectional threaded rod to rotate on the mounting box. The bidirectional threaded rod can drive the two side moving plates to move outward, and at the same time, the pressing block on the moving plate can disengage from the first positioning plate. After the first positioning plate is unobstructed, the cover plate can be removed for replacement and other operations. When installing the replacement cover plate, the bidirectional threaded rod can be rotated in the opposite direction. When the two side moving plates move inward, they can work with the pressing block to press the first positioning plate, fix the cover plate, and improve the protection effect on the magnetic levitation flywheel rotor.

[0019] 2. Equipped with a locking block; when braking protection is needed for the magnetic levitation flywheel rotor, the brake pads can be moved by the hydraulic rod, and the brake pads will engage with the magnetic levitation flywheel rotor to achieve a deceleration and stop effect. In the event of a failure of the electromagnetic bearing of the flywheel rotor, emergency braking can be applied to prevent further wear of the flywheel rotor. When it is necessary to remove the worn brake pads, the pull rods on both sides of the fixing box can be pulled to move the limiting plate. The limiting plate can compress the spring, lifting and disengaging the locking block from the second positioning plate. The unobstructed second positioning plate can then be detached to remove the connected brake pads, improving the subsequent braking and stopping effect. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of the magnetic levitation flywheel rotor protection structure with backup braking function provided in this application;

[0021] Figure 2 A three-dimensional structural diagram of the positioning frame for the magnetic levitation flywheel rotor protection structure with backup braking function provided in this application;

[0022] Figure 3 A side view of the magnetic bearing housing structure of the magnetic levitation flywheel rotor protection structure with backup braking function provided in this application;

[0023] Figure 4 The magnetic levitation flywheel rotor protection structure with backup braking function provided in this application Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 A side view of the extrusion block structure of the magnetic levitation flywheel rotor protection structure with backup braking function provided in this application;

[0025] Figure 6 The magnetic levitation flywheel rotor protection structure with backup braking function provided in this application Figure 3 Enlarged structural diagram at point B.

[0026] The diagram shows: 1. Magnetic levitation flywheel rotor; 2. Magnetic bearing housing; 3. Radial magnetic bearing stator; 4. Electromagnetic coil; 5. Radial magnetic bearing rotor; 6. Support bearing; 7. Sealing gasket; 8. Cover plate; 9. Lifting frame; 10. Positioning frame; 11. First positioning plate; 12. Mounting box; 13. Bidirectional threaded rod; 14. Turntable; 15. Moving plate; 16. Extrusion block; 17. Mounting plate; 18. Hydraulic rod; 19. Fixing box; 20. Brake pad; 21. Second positioning plate; 22. Spring; 23. Limiting plate; 24. Clamping block; 25. Pull rod; 26. Positioning bearing housing. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0028] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Example 1:

[0033] like Figure 1-6As shown, this embodiment proposes a magnetic levitation flywheel rotor protection structure with backup braking function, including a magnetic levitation flywheel rotor 1 and a magnetic bearing housing 2. The magnetic bearing housing 2 is mounted on the magnetic levitation flywheel rotor 1, and a radial magnetic bearing stator 3 is installed inside the magnetic bearing housing 2. An electromagnetic coil 4 is installed inside the radial magnetic bearing stator 3. A radial magnetic bearing rotor 5 is fixedly connected to the magnetic levitation flywheel rotor 1. A support bearing 6 is fixedly connected to the magnetic levitation flywheel rotor 1, and a positioning bearing housing 26 is fixedly connected to the support bearing 6. A sealing gasket 7 is fixedly connected to the positioning bearing housing 26, and a sealing gasket 7 is installed on the positioning bearing housing 26. There is a cover plate 8, a lifting frame 9 is rotatably connected to the cover plate 8, a positioning frame 10 is fixedly connected to the lifting frame 9, a first positioning plate 11 is fixedly connected to the cover plate 8, an installation box 12 is fixedly connected to the positioning bearing seat 26, a bidirectional threaded rod 13 is rotatably connected to the installation box 12, a turntable 14 is fixedly connected to the bidirectional threaded rod 13, a moving plate 15 is threadedly connected to the bidirectional threaded rod 13, an extrusion block 16 is fixedly connected to the moving plate 15, an installation plate 17 is fixedly connected to the magnetic bearing seat 2, a hydraulic rod 18 is fixedly connected to the installation plate 17, and a fixing box 19 is fixedly connected to the hydraulic rod 18.

[0034] Example 2:

[0035] The solution in Example 1 will be further described below with reference to its specific working method.

[0036] like Figure 2 As shown, in a preferred embodiment, based on the above method, the lifting frame 9 is rotatably connected to the center of the cover plate 8, and the positioning frame 10 has a cross-section in the shape of a "+", which can ensure that the "+" shaped positioning frame 10 can be inserted into the magnetic levitation flywheel rotor 1 for positioning and support.

[0037] like Figure 5 As shown, in a preferred embodiment, based on the above method, the side end face of the first positioning plate 11 is inclined, and the top face of the moving plate 15 is in contact with the top face inside the mounting box 12, which can ensure that when the moving plate 15 moves, it can move smoothly left and right by being supported by the contact of the top face inside the mounting box 12.

[0038] like Figure 5 As shown, in a preferred embodiment, based on the above method, the movable plates 15 are symmetrically distributed on the left and right sides of the bidirectional threaded rod 13, and the movable plates 15 correspond one-to-one with the extrusion blocks 16, which can ensure that the extrusion blocks 16 on both sides can extrude and fix the first positioning plate 11.

[0039] like Figure 6As shown, in a preferred embodiment, based on the above method, a brake pad 20 is further provided on the fixed box 19, a second positioning plate 21 is fixedly connected to the brake pad 20, a spring 22 is fixedly connected inside the fixed box 19, and a limit plate 23 is fixedly connected to the other end of the spring 22. The side of the limit plate 23 is in contact with the inner side of the fixed box 19, which can ensure that when the limit plate 23 moves, it can move smoothly by being supported by the contact of the inner side of the fixed box 19.

[0040] like Figure 6 As shown, in a preferred embodiment, based on the above method, a locking block 24 is fixedly connected to the limiting plate 23, a pull rod 25 is fixedly connected to the limiting plate 23, and springs 22 are symmetrically distributed on the left and right sides inside the fixed box 19. The springs 22 correspond one-to-one with the locking blocks 24 through the limiting plate 23, which can ensure that the locking blocks 24 on both sides can be engaged in the second positioning plate 21 to position and support the brake pad 20.

[0041] Specifically, this magnetic levitation flywheel rotor protection structure with backup braking function, when in use: combined with Figure 1-6 When disassembling and replacing the lifting frame 9 and positioning frame 10, the turntable 14 can be rotated to drive the bidirectional threaded rod 13 to rotate on the mounting box 12. The bidirectional threaded rod 13 can drive the two side moving plates 15 to move outward. At the same time, the pressing block 16 on the moving plate 15 can be disassembled from the first positioning plate 11. After the first positioning plate 11 is unobstructed, the cover plate 8 can be disassembled and removed for replacement and other operations. When installing the replacement cover plate 8, the bidirectional threaded rod 13 can be rotated in the opposite direction. When the two side moving plates 15 move inward, the pressing block 16 can press and fix the first positioning plate 11 to install the cover plate 8. The installation of the cover plate 8 can also press the sealing gasket 7 to achieve a protective effect and improve the disassembly and installation effect.

[0042] When the radial magnetic bearing stator 3 in the magnetic bearing housing 2 is powered by the electromagnetic coil 4, the radial magnetic bearing rotor 5 on the magnetic levitation flywheel rotor 1 cooperates to achieve rotation. When the magnetic levitation flywheel rotor 1 rotates, the positioning bearing housing 26 is installed in the protective housing. The support bearing 6 in the positioning bearing housing 26 can support and guide the rotation of the magnetic levitation flywheel rotor 1. The end of the magnetic levitation flywheel rotor 1 is supported by the lifting frame 9 and the positioning frame 10, which can reduce the pressure on the support bearing 6. If it is necessary to stop the rotation of the magnetic levitation flywheel rotor 1, the radial magnetic bearing stator 3 stops running, and the hydraulic rod 18 on the mounting plate 17 can push the fixed box 19 and the brake pad 20 to move. The brake pad 20 is attached to the magnetic levitation flywheel rotor 1 to perform frictional deceleration and stop the rotation.

[0043] When it is necessary to disassemble the worn brake pad 20, the pull rods 25 on both sides of the fixing box 19 can be pulled to move the limiting plate 23. The limiting plate 23 can squeeze the spring 22, lifting and causing the locking block 24 to disengage from the second positioning plate 21. The second positioning plate 21, which is unobstructed, can be detached to remove the connected brake pad 20 for subsequent replacement. The replaced brake pad 20 inserts the second positioning plate 21 into the fixing box 19. The inclined surface of the second positioning plate 21 can squeeze the locking block 24. After moving to the designated position, the limiting plate 23 and the locking block 24 are reset under the push of the spring 22. The locking block 24 can be locked in the second positioning plate 21 for fixed positioning to prevent the installed brake pad 20 from falling off.

[0044] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, as well as all technical solutions and improvements that do not depart from the spirit and scope of practicality, are covered within the scope of the claims of the present utility model.

Claims

1. A magnetic levitation flywheel rotor protection structure with backup braking function, comprising a magnetic levitation flywheel rotor (1) and a magnetic bearing housing (2), characterized in that, A magnetic bearing housing (2) is installed on the magnetic levitation flywheel rotor (1). A radial magnetic bearing stator (3) is installed inside the magnetic bearing housing (2). An electromagnetic coil (4) is installed inside the radial magnetic bearing stator (3). A radial magnetic bearing rotor (5) is fixedly connected to the magnetic levitation flywheel rotor (1). A support bearing (6) is fixedly connected to the magnetic levitation flywheel rotor (1). A positioning bearing housing (26) is fixedly connected to the support bearing (6). A sealing gasket (7) is fixedly connected to the positioning bearing housing (26). A cover plate (8) is installed on the positioning bearing housing (26). A lifting frame (9) is rotatably connected to the cover plate (8). A positioning frame (10) is fixedly connected. A first positioning plate (11) is fixedly connected to the cover plate (8). An installation box (12) is fixedly connected to the positioning bearing seat (26). A bidirectional threaded rod (13) is rotatably connected to the installation box (12). A turntable (14) is fixedly connected to the bidirectional threaded rod (13). A moving plate (15) is threadedly connected to the bidirectional threaded rod (13). An extrusion block (16) is fixedly connected to the moving plate (15). An installation plate (17) is fixedly connected to the magnetic bearing seat (2). A hydraulic rod (18) is fixedly connected to the installation plate (17). A fixing box (19) is fixedly connected to the hydraulic rod (18).

2. A magnetic bearing flywheel rotor protection structure with a backup braking function according to claim 1, characterized in that, The lifting frame (9) is rotatably connected to the center of the cover plate (8), and the positioning frame (10) has a cross-section in the shape of a "+".

3. The magnetic bearing flywheel rotor protection structure with backup braking function according to claim 1, characterized in that, The side end face of the first positioning plate (11) is inclined, and the top face of the moving plate (15) is in contact with the top face inside the mounting box (12).

4. The magnetic bearing flywheel rotor protection structure with backup braking function according to claim 1, characterized in that, The movable plates (15) are symmetrically distributed on the left and right sides of the bidirectional threaded rod (13), and the movable plates (15) correspond one-to-one with the extrusion blocks (16).

5. The magnetic bearing flywheel rotor protection structure with backup braking function according to claim 1, characterized in that, A brake pad (20) is provided on the fixed box (19), and a second positioning plate (21) is fixedly connected to the brake pad (20). A spring (22) is fixedly connected inside the fixed box (19), and a limit plate (23) is fixedly connected to the other end of the spring (22). The side of the limit plate (23) is in contact with the inner side of the fixed box (19).

6. A magnetic bearing flywheel rotor protection structure with a backup braking function according to claim 5, characterized in that, A locking block (24) is fixedly connected to the limiting plate (23), and a pull rod (25) is fixedly connected to the limiting plate (23). The springs (22) are symmetrically distributed on the left and right sides inside the fixed box (19). The springs (22) correspond one-to-one with the locking blocks (24) through the limiting plate (23).

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