Reducing flywheel and air cushion flywheel energy storage device

Abstract

The invention relates to the technical field of flywheel energy storage, in particular to a variable-diameter flywheel and air cushion flywheel energy storage device.The diameter of a flywheel body is increased by additionally arranging a high-strength adjusting piece on the peripheral side of the flywheel body, and the high-strength adjusting piece is matched with a support to downwards extrude away from the axis of the flywheel body when the flywheel body rotates; therefore, the high-strength adjusting piece and the flywheel body are connected more stably and reliably, stable and reliable work is guaranteed, and different energy storage requirements are met by disassembling and assembling the high-strength adjusting piece. According to the air cushion flywheel energy storage device, the pneumatic telescopic rod is arranged, and the high-strength adjusting piece is driven by stretching of the pneumatic telescopic rod to reciprocate in the extrusion direction of the high-strength adjusting piece; the electromagnet is matched with the high-strength adjusting piece to be attracted or separated from the high-strength adjusting piece, matched installation and disassembly with the flywheel body are achieved, the operation difficulty is lowered, the flywheel diameter adjusting efficiency is improved, and then the operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of flywheel energy storage technology, specifically to a variable diameter flywheel and an air cushion flywheel energy storage device. Background Technology

[0002] Air cushion flywheel energy storage devices are high-efficiency energy storage equipment that utilizes air cushion bearings (air bearings / air float bearings). Flywheel energy storage is an electromechanical energy conversion physical energy storage technology. An electric motor drives a flywheel to rotate at high speed, converting electrical energy into rotational kinetic energy for storage. During discharge, the flywheel decelerates, driving a generator to produce electricity, thus restoring kinetic energy to electrical energy. It features fast response, high efficiency, long lifespan, no pollution, and maintenance-free operation, making it an important energy storage support technology in new energy and power systems.

[0003] Conventional air cushion flywheel energy storage devices typically have a fixed flywheel diameter and weight, which limits their effectiveness. The diameter and weight of the flywheel cannot be changed according to the energy storage requirements, thus affecting the actual performance of the flywheel energy storage device and failing to meet actual usage needs. Summary of the Invention

[0004] The purpose of this invention is to provide a variable diameter flywheel and air cushion flywheel energy storage device to solve the technical problem of non-adjustable flywheel size.

[0005] The solution of the present invention to the above-mentioned technical problems is as follows: A variable diameter flywheel includes a flywheel body and a plurality of high-strength adjusting components. The plurality of high-strength adjusting components are circumferentially spaced around the axis of the flywheel body and arranged on the outer side of the flywheel body. The high-strength adjusting components are detachably connected to the flywheel body through a fitting bracket. When the flywheel body rotates, the fitting bracket drives the high-strength adjusting components away from the axis of the flywheel body and presses them downward.

[0006] Further specified, the top of the flywheel body is provided with a mating groove, the mating groove is opened at an angle from top to bottom away from the axis of the flywheel body along the radial direction of the flywheel body, the disassembly end of the mating bracket is provided with an inclined block that matches the mating groove, the mating bracket is located at the top of the flywheel body, the connecting end of the mating bracket is connected to the top of the high-strength adjustment component, and the high-strength adjustment component is sleeved on the outside of the flywheel body.

[0007] Furthermore, the high-strength adjustment component is detachably connected to the flywheel body via multiple mating brackets, and the multiple mating brackets are equally spaced along the arc direction of the high-strength adjustment component.

[0008] An air cushion flywheel energy storage device includes the aforementioned variable diameter flywheel, as well as a main protective shell, a rotating main shaft, an air bearing, a disassembly drive, and multiple pneumatic telescopic rods; The air bearings are respectively arranged on opposite sides of the main protective shell. The rotating main shaft is coaxially arranged with the main protective shell through the air bearings. The flywheel body is sleeved on the outside of the rotating main shaft and connected to the rotating main shaft. The disassembly drive is located on the outside of the main protective shell. The pneumatic telescopic rod is arranged in a one-to-one correspondence with the high-strength adjustment component. The input end of the pneumatic telescopic rod is connected to the output end of the disassembly drive. The movable end of the pneumatic telescopic rod extends through the main protective shell to the outside of the high-strength adjustment component and is disassembled and connected to the high-strength adjustment component. The extrusion direction of the pneumatic telescopic rod and the corresponding high-strength adjustment component is the same.

[0009] Further specifying, the disassembly drive includes an air compressor, an air supply ring, and a compressed air injection pipe. The input end of the air supply ring is connected to the output end of the air compressor. The air compressor is connected to the inside of the air bearing through the compressed air injection pipe. Solenoid valves are provided on both the compressed air injection pipe and the air supply ring. The output end of the air supply ring is connected to the input end of the pneumatic telescopic rod. The fixed end of the pneumatic telescopic rod is located on the outside of the main protective shell through a connecting bracket.

[0010] Further specifying, a control box is provided on the main protective shell, and the control box is connected to the solenoid valve and the air compressor respectively; The movable end of the pneumatic telescopic rod is connected to a bonding plate, which is detachably connected to a high-strength adjusting component via an electromagnet. The electromagnet is electrically connected to the control box.

[0011] Furthermore, the air cushion flywheel energy storage device also includes a vacuum pump, which is connected to the interior of the main protective shell via a connecting pipe; a pressure sensor is installed on the main protective shell, and both the pressure sensor and the vacuum pump are connected to the control box via signal.

[0012] Further specified, both sides of the outer side of the main protective shell are provided with sealing end caps, and the opposite ends of the rotating main shaft extend through the main protective shell into the corresponding sealing end caps. The rotating main shaft is movably connected to the sealing end caps through thrust bearings.

[0013] Further specifying, the lower end of the rotating spindle is fitted with a synchronous stabilizing sealing frame, which is located inside the sealing end cover. The synchronous stabilizing sealing frame is sealed to the sealing end cover through a flexible sealing sheet and a labyrinth-type air seal.

[0014] Further specified, a permanent magnet motor is provided inside the main protective shell, the permanent magnet motor is sleeved on the outside of the rotating main shaft and connected to the rotating main shaft, and the permanent magnet motor is located above the flywheel body.

[0015] The beneficial effects of this invention are as follows: 1. The variable-diameter flywheel provided by this invention has a simple structure and low cost. The diameter of the flywheel body is increased by adding a high-strength adjustment component to the periphery of the flywheel body. The high-strength adjustment component is pressed downward away from the axis of the flywheel body when the flywheel body rotates by cooperating with the bracket, so that the connection between the high-strength adjustment component and the flywheel body is more stable and reliable, ensuring stable and reliable operation. The high-strength adjustment component can be disassembled and assembled to adapt to different energy storage needs.

[0016] 2. This invention uses a pneumatic telescopic rod to drive a high-strength adjusting component to reciprocate along its compression direction. Combined with an electromagnet adsorbing or detaching from the high-strength adjusting component, it enables installation and disassembly of the flywheel body, reducing operational difficulty, improving flywheel diameter adjustment efficiency, and ultimately enhancing work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the variable diameter flywheel structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the variable diameter flywheel of the present invention; Figure 3 This is a structural diagram of the air cushion flywheel energy storage device of the present invention; Figure 4 This is a bottom perspective view of the air cushion flywheel energy storage device of the present invention; Figure 5 This is a diagram showing the internal structure of the air cushion flywheel energy storage device of the present invention; Figure 6 This is a diagram of the internal structure of the main protective shell of the present invention; Figure 7 This is a schematic diagram showing the connection between the bonding plate and the electromagnet of the present invention.

[0018] In the diagram: 1-Main protective shell; 2-Control box; 3-Pressure sensor; 4-Sealed end cap; 5-Vacuum pump; 6-Solenoid valve; 7-Connecting bracket; 8-Air supply ring; 9-Air compressor; 10-Compressed air injection pipe; 11-Connecting pipe; 12-Rotating spindle; 13-Permanent magnet motor; 14-Flywheel body; 15-Matching bracket; 16-High-strength adjusting component; 17-Adhesive plate; 18-Pneumatic telescopic rod; 19-Thrust bearing; 20-Air bearing; 21-Matching inclined groove; 22-Electromagnet; 23-Synchronous stabilizing sealing frame; 24-Flexible sealing sheet; 25-Labyrinth air seal. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] 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.

[0022] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" 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 of the invention is in use, they are only for the convenience of describing the present invention 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 of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Example 1 refer to Figure 1 and Figure 2 The present invention provides a variable diameter flywheel, including a flywheel body 14 and a plurality of high-strength adjusting members 16. The plurality of high-strength adjusting members 16 are arranged circumferentially around the axis of the flywheel body 14 on the outer side of the flywheel body 14, preferably at equal intervals, to ensure the stability and reliability of the rotation of the flywheel body 14; the number of high-strength adjusting members 16 is preferably 3.

[0024] The high-strength adjustment component 16 is detachably connected to the flywheel body 14 through the bracket 15, which makes it convenient to install or remove the high-strength adjustment component 16 from the flywheel body 14 according to energy storage needs, thereby increasing or restoring the diameter of the flywheel body 14.

[0025] The core formula for flywheel energy storage is: E=Iω² / 2, where I=k·m·r², r=D / 2. The mass m and diameter D directly determine the moment of inertia I, which in turn determines the energy storage E. Moreover, the influence of the diameter is quadratic, which is more significant than that of the mass. By adding a high-strength adjustment component 16 to the outside of the flywheel body 14, energy storage can be improved not only by increasing the mass, but also by significantly increasing the diameter. Therefore, installing a high-strength adjustment component 16 on the flywheel body 14 can further meet the energy storage requirements.

[0026] Specifically, in order to facilitate the reliability and stability of the connection between the high-strength adjustment component 16 and the flywheel body 14, it is preferable that the bracket 15, when the flywheel body 14 rotates, drives the high-strength adjustment component 16 away from the axis of the flywheel body 14 and presses it downward, thereby improving the connection strength with the flywheel body 14.

[0027] In one embodiment, a mating groove 21 is provided on the top of the flywheel body 14. The mating groove 21 is inclined from top to bottom away from the axis of the flywheel body 14 in the radial direction. The disassembly end of the mating bracket 15 is provided with an inclined block that matches the mating groove 21. The mating bracket 15 is located on the top of the flywheel body 14. When the high-strength adjusting member 16 is connected to the flywheel body 14, the inclined block is inserted into the mating groove 21. A gap is reserved between the high-strength adjusting member 16 and the outer wall of the flywheel body 14. When the flywheel body 14 rotates, it will drive the mating bracket 15 and the high-strength adjusting member 16 to rotate. The mating bracket 15 and the mating groove 21 are in inclined contact. When the high-strength adjusting member 16 drives the mating bracket 15 away from the axis of the flywheel body 14 during rotation, the mating bracket 15 presses the flywheel body 14 downward along the mating groove 21, increasing the tightness of the connection with the flywheel body 14 and ensuring safe and reliable operation.

[0028] The connecting end of the bracket 15 is connected to the top of the high-strength adjustment component 16. The high-strength adjustment component 16 is sleeved on the outside of the flywheel body 14. The high-strength adjustment component 16 has an arc plate structure. The high-strength adjustment component 16 can be made of lightweight high-strength composite materials such as carbon fiber and an outer iron plate, or it can be an integrated structure. High-strength adjustment components 16 of different masses can be selected according to energy storage requirements.

[0029] In order to improve the reliability of the connection, the high-strength adjustment component 16 is detached and connected to the flywheel body 14 through multiple mating brackets 15. Taking three as an example, the flywheel body 14 has nine mating grooves 21. The multiple mating brackets 15 are equally spaced along the arc direction of the high-strength adjustment component 16.

[0030] By adding a high-strength adjustment component 16 to the flywheel body 14, it is convenient for staff to increase the diameter and mass of the flywheel body 14 according to usage requirements, thereby increasing the energy storage capacity of the device. This solves the problem that the flywheel diameter is usually a fixed structure and cannot be changed once it is manufactured. It also prevents the energy storage capacity, power level, and operating characteristics of the device from being fixed, ensuring that the device can adapt to various application scenarios and load requirements.

[0031] Example 2 refer to Figures 3-7 This embodiment provides an air cushion flywheel energy storage device, including the variable diameter flywheel provided in Embodiment 1, and also includes a main protective shell 1, a rotating main shaft 12, an air bearing 20, a disassembly drive, and multiple pneumatic telescopic rods 18.

[0032] Among them, air bearings 20 are respectively installed at the upper and lower ends inside the main protective shell 1. The rotating main shaft 12 is coaxially installed with the main protective shell 1 through the air bearings 20. The flywheel body 14 is sleeved on the outside of the rotating main shaft 12 and connected to the rotating main shaft 12. A permanent magnet motor 13 is also installed inside the main protective shell 1. The permanent magnet motor 13 is sleeved on the outside of the rotating main shaft 12 and connected to the rotating main shaft 12. The permanent magnet motor 13 is located above the flywheel body 14.

[0033] The disassembly drive is used to drive the pneumatic telescopic rod 18 to extend and retract. The disassembly drive is located on the outside of the main protective shell 1 for easy maintenance and repair. The pneumatic telescopic rod 18 is used to disassemble or install the high-strength adjustment component 16 and the flywheel body 14. The pneumatic telescopic rod 18 and the high-strength adjustment component 16 are set in a one-to-one correspondence. The input end of the pneumatic telescopic rod 18 is connected to the output end of the disassembly drive. The movable end of the pneumatic telescopic rod 18 extends through the main protective shell 1 to the outside of the high-strength adjustment component 16 and is disassembled and connected to the high-strength adjustment component 16. The movable end of the pneumatic telescopic rod 18 and the main protective shell 1 are sealed. The pneumatic telescopic rod 18 and the corresponding high-strength adjusting component 16 are arranged in the same direction, that is, the pneumatic telescopic rod 18 and the corresponding mating inclined groove 21 are arranged in the same direction. When the pneumatic telescopic rod 18 extends, it drives the high-strength adjusting component 16 to tilt upward, and the inclined block slides out to the outside of the mating inclined groove 21 to complete disassembly. When the pneumatic telescopic rod 18 retracts, it drives the high-strength adjusting component 16 to tilt downward, and the inclined block slides into the mating inclined groove 21. Then the pneumatic telescopic rod 18 and the high-strength adjusting component 16 separate to complete installation, so that the high-strength adjusting component 16 can rotate synchronously with the flywheel body 14 for convenient operation.

[0034] Further explanation: The disassembly drive includes an air compressor 9, an air supply ring 8, and a compressed air injection pipe 10. The input end of the air supply ring 8 is connected to the output end of the air compressor 9. The pneumatic telescopic rod 18 is arranged circumferentially around the axis of the main protective shell 1, following the high-strength adjustment component 16. Therefore, an annular air supply ring 8 is selected and set on the outside of the pneumatic telescopic rod 18 to facilitate synchronous air supply control with each pneumatic telescopic rod 18. A solenoid valve 6 is provided on the air supply ring 8. The output end of the air supply ring 8 is connected to the input end of the pneumatic telescopic rod 18. By adjusting the solenoid valve 6 on the air supply ring 8, the high-pressure gas output from the air compressor 9 can be injected into the input end of the pneumatic telescopic rod 18 to drive the pneumatic telescopic rod 18 to extend. Alternatively, the high-pressure gas in the air supply ring 8 can be discharged to cause the pneumatic telescopic rod 18 to retract. The fixed end of the pneumatic telescopic rod 18 is set on the outside of the main protective shell 1 through a connecting bracket 7 to improve the stability of the pneumatic telescopic rod 18.

[0035] The air compressor 9 is connected to the air bearing 20 via the compressed air injection pipe 10. The compressed air injection pipe 10 is also equipped with a solenoid valve 6 for controlling the gas flow and discharge, ensuring the stability and functionality of the device during operation. The air compressor 9 introduces compressed air into the air bearing 20 through the compressed air injection pipe 10, so that the rotating spindle 12 and the air bearing 20 are in a non-contact limiting position, ensuring the efficient rotation of the rotating spindle 12.

[0036] For ease of control, a control box 2 is preferably provided on the main protective shell 1. The control box 2 is connected to the air compressor 9 and two solenoid valves 6 respectively, and is used to control the start and stop of the air compressor 9 and the operation of the solenoid valves 6, so as to facilitate remote operation.

[0037] To further explain, for ease of operation, the movable end of the pneumatic telescopic rod 18 is connected to a bonding plate 17, which is located inside the main protective shell 1. The bonding plate 17 is detachably connected to the high-strength adjusting component 16 via an electromagnet 22. The electromagnet 22 is electrically connected to the control box 2 and is used to control the electromagnet 22 to become magnetized when energized or demagnetized when de-energized.

[0038] During operation, when it is necessary to increase the diameter of the flywheel body 14, the control box 2 controls the electromagnet 22 to maintain the electromagnetic force generated by the energization to attract the high-strength adjustment component 16. Then, the pressure is released by opening the solenoid valve 6 on the air supply ring 8, so that the pneumatic telescopic rod 18 retracts and the high-strength adjustment component 16 moves obliquely downward along the direction of the pneumatic telescopic rod 18 through the bonding plate 17, so that the tilting block can be engaged with the matching oblique groove 21. After the engagement is completed, the control box 2 controls the electromagnet 22 to de-energize and disconnect from the high-strength adjustment component 16. The pneumatic telescopic rod 18 continues to retract through the bonding plate 17, so that the high-strength adjustment component 16 can rotate with the flywheel body 14.

[0039] When it is necessary to reduce the diameter of the flywheel body 14, the control box 2 controls the electromagnet 22 to be energized and starts the air compressor 9, closes the solenoid valve 6 on the air supply ring 8, drives the pneumatic telescopic rod 18 to move obliquely upward until it is attracted to the high-strength adjustment component 16 and continues to move until the high-strength adjustment component 16 is disengaged from the flywheel body 14, thus completing the disassembly.

[0040] To further explain, the air cushion flywheel energy storage device also includes a vacuum pump 5, which is located on the outside of the main protective shell 1 and is connected to the inside of the main protective shell 1 through a connecting pipe 11; a pressure sensor 3 is installed on the main protective shell 1, and both the pressure sensor 3 and the vacuum pump 5 are connected to the control box 2 for signal transmission.

[0041] The control box 2 controls the vacuum pump 5 to draw the inside of the main protective shell 1 to a vacuum state through the connecting pipe 11, thereby reducing the resistance when the flywheel body 14 rotates. In conjunction with the air pressure sensor 3, it is convenient to obtain the air pressure status inside the main protective shell 1.

[0042] The control box 2 is also connected to the permanent magnet motor 13. When energy storage is required, the control box 2 controls the permanent magnet motor 13 to drive the flywheel body 14 to rotate and convert electrical energy into kinetic energy for storage. When discharging, the flywheel body 14 decelerates and drives the permanent magnet motor 13 to generate electricity, converting the kinetic energy back into electrical energy for output.

[0043] To further explain, sealing end caps 4 are provided at both the upper and lower ends of the outer side of the main protective shell 1. The sealing end caps 4 are fixedly connected to the main protective shell 1, and a sealing treatment is performed between the main protective shell 1 and the sealing end caps 4. The upper and lower ends of the rotating spindle 12 extend through the main protective shell 1 to the corresponding sealing end caps 4. The rotating spindle 12 is movably connected to the sealing end caps 4 through the thrust bearing 19.

[0044] To improve the sealing effect, a synchronous stabilizing seal frame 23 is installed at the lower end of the outside of the rotating spindle 12. The synchronous stabilizing seal frame 23 is fixedly connected to the rotating spindle 12. A flexible sealing sheet 24 is installed between the synchronous stabilizing seal frame 23 and the sealing end cover 4. A labyrinth-type air seal 25 is also installed between the synchronous stabilizing seal frame 23 and the sealing end cover 4. The labyrinth-type air seal 25 is located above the flexible sealing sheet 24.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A variable diameter flywheel, characterized in that, The device includes a flywheel body (14) and multiple high-strength adjustment components (16). The multiple high-strength adjustment components (16) are circumferentially spaced around the axis of the flywheel body (14) on the outside of the flywheel body (14). The high-strength adjustment components (16) are detachably connected to the flywheel body (14) through a fitting bracket (15). When the flywheel body (14) rotates, the fitting bracket (15) drives the high-strength adjustment components (16) away from the axis of the flywheel body (14) and presses them downward.

2. The variable diameter flywheel according to claim 1, characterized in that, The top of the flywheel body (14) is provided with a mating groove (21). The mating groove (21) is opened at an angle from top to bottom away from the axis of the flywheel body (14) in the radial direction of the flywheel body (14). The disassembly end of the mating bracket (15) is provided with an inclined block that matches the mating groove (21). The mating bracket (15) is located at the top of the flywheel body (14). The connecting end of the mating bracket (15) is connected to the top of the high-strength adjusting member (16). The high-strength adjusting member (16) is sleeved on the outside of the flywheel body (14).

3. The variable diameter flywheel according to claim 1, characterized in that, The high-strength adjustment component (16) is detachably connected to the flywheel body (14) through multiple mating brackets (15), and the multiple mating brackets (15) are equally spaced along the arc direction of the high-strength adjustment component (16).

4. An air cushion flywheel energy storage device, characterized in that, The variable diameter flywheel as described in any one of claims 1 to 3 further includes a main protective shell (1), a rotating main shaft (12), an air bearing (20), a disassembly drive, and a plurality of pneumatic telescopic rods (18). The air bearings (20) are respectively set on opposite sides of the main protective shell (1). The rotating spindle (12) is coaxially set with the main protective shell (1) through the air bearings (20). The flywheel body (14) is sleeved on the outside of the rotating spindle (12) and connected to the rotating spindle (12). The disassembly drive is located on the outside of the main protective shell (1). The pneumatic telescopic rod (18) and the high-strength adjustment component (16) are set one-to-one. The input end of the pneumatic telescopic rod (18) is connected to the output end of the disassembly drive. The movable end of the pneumatic telescopic rod (18) extends through the main protective shell (1) to the outside of the high-strength adjustment component (16) and is disassembled and connected to the high-strength adjustment component (16). The extrusion direction of the pneumatic telescopic rod (18) and the corresponding high-strength adjustment component (16) are set in the same direction.

5. The air cushion flywheel energy storage device according to claim 4, characterized in that, The disassembly drive includes an air compressor (9), an air supply ring (8), and a compressed air injection pipe (10). The input end of the air supply ring (8) is connected to the output end of the air compressor (9). The air compressor (9) is connected to the air bearing (20) through the compressed air injection pipe (10). Solenoid valves (6) are provided on both the compressed air injection pipe (10) and the air supply ring (8). The output end of the air supply ring (8) is connected to the input end of the pneumatic telescopic rod (18). The fixed end of the pneumatic telescopic rod (18) is located on the outside of the main protective shell (1) through a connecting bracket (7).

6. The air cushion flywheel energy storage device according to claim 5, characterized in that, The main protective shell (1) is provided with a control box (2), which is connected to the solenoid valve (6) and the air compressor (9) respectively. The movable end of the pneumatic telescopic rod (18) is connected to a bonding plate (17). The bonding plate (17) is detachably connected to the high-strength adjusting component (16) via an electromagnet (22). The electromagnet (22) is electrically connected to the control box (2).

7. The air cushion flywheel energy storage device according to claim 6, characterized in that, The air cushion flywheel energy storage device also includes a vacuum pump (5), which is connected to the interior of the main protective shell (1) through a connecting pipe (11); a pressure sensor (3) is provided on the main protective shell (1), and both the pressure sensor (3) and the vacuum pump (5) are connected to the control box (2) via signal.

8. The air cushion flywheel energy storage device according to claim 4, characterized in that, Both sides of the outer side of the main protective shell (1) are provided with sealing end caps (4). The two ends of the rotating spindle (12) extend through the main protective shell (1) to the corresponding sealing end caps (4). The rotating spindle (12) is movably connected to the sealing end caps (4) through the thrust bearing (19).

9. The air cushion flywheel energy storage device according to claim 8, characterized in that, The lower end of the rotating spindle (12) is fitted with a synchronous stabilizing sealing frame (23), which is located inside the sealing end cover (4). The synchronous stabilizing sealing frame (23) is sealed to the sealing end cover (4) through a flexible sealing sheet (24) and a labyrinth-type air seal (25).

10. The air cushion flywheel energy storage device according to claim 4, characterized in that, The main protective shell (1) is equipped with a permanent magnet motor (13), which is sleeved on the outside of the rotating main shaft (12) and connected to the rotating main shaft (12). The permanent magnet motor (13) is located above the flywheel body (14).

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