Same-direction multi-layer blade rotor power system driven by disc type motor

Abstract

The utility model discloses a same-direction multi-layer blade rotor wing power system driven by disc type motors, and solves the technical problems that an existing rotor wing power system is limited in lift force and low in flight efficiency. The rotor comprises a rotor and a driving system, the driving system comprises a rotating assembly and a motor stator, the rotating assembly comprises a rotating shaft, an upper rotor ring and a lower rotor ring, the motor stator and at least one rotor ring form a driving motor, the upper rotor ring and the lower rotor ring are both arranged on the rotating shaft, and the upper rotor ring and the lower rotor ring are arranged on the rotating shaft. The rotating assembly can rotate relative to the motor stator, the rotating assembly is provided with the rotor wing, the rotor wing comprises multiple layers of blades, and the multiple layers of blades are located above and / or below the driving motor. The aircraft has the advantages of being capable of achieving double-end power output, high in stability, high in flight efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor power systems, and particularly relates to a disk motor-driven coaxial multi-layer blade rotor power system. Background Art

[0002] Magnetic levitation technology is an advanced technology based on electromagnetic principles. It uses the attractive or repulsive forces generated by magnetic fields to keep a certain distance between an object and the supporting surface, thereby achieving levitation. Magnetic levitation technology has advantages such as no friction, low noise, high precision, and stable operation. With the continuous development and maturity of magnetic levitation technology, its application prospects in rotor systems are becoming increasingly broad. On the one hand, magnetic levitation supports have the characteristics of non-contact and no friction, which can significantly increase the rotational speed of the rotor ring, thereby improving the lift and flight efficiency of the rotor. On the other hand, since magnetic levitation supports eliminate the friction and vibration of traditional mechanical bearings, the vibration and noise levels of the rotor are significantly reduced, improving the reliability of the rotor.

[0003] In the existing patent CN118083167A, it discloses a new type of coaxial double-rotor unmanned aerial vehicle. By setting the rotation of the coaxial double-blade motor to drive the blades to rotate to provide lift for the unmanned aerial vehicle, the rotation of the upper outer frame and the motor inner frame enables the unmanned aerial vehicle to complete pitching and rolling motions, improving the flexibility during flight. However, in this device, a DC brushless motor is used, and the iron loss is relatively high, resulting in more serious heat loss energy. A speed-changing device is introduced, which is not conducive to the lightweight design of the rotor power system, and the motor used consumes a large amount of energy.

[0004] In the patent with the publication number CN220257156U and the patent name "A Rotor Aircraft", it discloses a double rotor. The power is transmitted to the double-layer blades by using a ball screw. The active part is the screw rod, and the double-layer blades rotate in opposite directions through a speed-changing device. However, in this device, a speed-changing device is additionally designed between the double-layer blades, which is not conducive to the lightweight design of the rotor power system. The ball screw drive generates serious heat, resulting in low flight efficiency, and the resistance moment directions between the double-layer blades are different, intensifying the torsion of the intermediate shaft and restricting the overall strength of the rotorcraft.

[0005] In the patent with the publication number CN118004415A and the patent name "Rotor Aircraft", it discloses a rotor structure. By using the Coanda effect, the power rotor system obtains additional lift. However, in this device, the lift provided by the single-layer blade is limited, and mechanical bearings are used for support, resulting in relatively serious mechanical losses and reducing the working efficiency of the rotorcraft.

[0006] Based on the problems existing in the above-mentioned existing patents, it is necessary to study a disk motor-driven coaxial multi-layer blade rotor power system. Summary of the Invention

[0007] The technical problem to be solved by the present utility model is: the technical problem that the existing rotor power system has limited lift and low flight efficiency.

[0008] The present utility model is realized by the following technical solutions:

[0009] A disc motor-driven coaxial multi-layer blade rotor power system, comprising:

[0010] A rotor and a drive system,

[0011] The drive system includes a rotating assembly and a motor stator. The rotating assembly includes a rotating shaft and at least one rotor ring arranged on the rotating shaft. The motor stator and at least one of the rotor rings form a drive motor. The rotating assembly can rotate relative to the motor stator. A duct communicating with the outside is formed among the rotor ring, the motor stator and the rotating shaft.

[0012] The rotating assembly is provided with the rotor. The rotor includes multi-layer blades, and the multi-layer blades are located above and / or below the drive motor.

[0013] In the present utility model, the rotation of the multi-layer blades of the rotor driven by the disc motor is adopted to increase the lift, ensuring the lift of the system and the flight efficiency.

[0014] Preferably, there are two rotor rings, namely an upper rotor ring and a lower rotor ring. The motor stator is located between the two rotor rings. The upper rotor ring and the lower rotor ring are both arranged on the rotating shaft. A duct is formed among the upper rotor ring, the lower rotor ring, the motor stator and the rotating shaft.

[0015] A drive assembly is arranged between the motor stator and the two rotor rings. Generally, drive coils are arranged on the motor stator, and permanent magnets are arranged at positions corresponding to the drive coils on the rotor rings. By energizing the drive coils and acting with the permanent magnets, a driving force is generated to drive the rotation of the rotor rings and drive the rotation of the rotating shaft.

[0016] In the present utility model, a double-rotor structure is adopted to enhance the performance of the motor;

[0017] It should be noted that the rotor is arranged in multiple layers and can be arranged at the same end of the rotating assembly or at the upper and lower ends of the rotating shaft simultaneously to enhance the lift generated by the rotor.

[0018] Preferably, at least one layer of blades is respectively connected to both ends of the rotating shaft, or at least one layer of blades is respectively connected to the upper rotor ring and the lower rotor ring. The blades can be directly connected to the rotating shaft or connected to the upper rotor ring and the lower rotor ring.

[0019] Preferably, the rotor includes an upper blade and a lower blade. The upper blade and the lower blade are respectively arranged at the upper and lower ends of the rotating shaft or are respectively arranged on the upper rotor ring and the lower rotor ring, and the driving motor is located between the upper blade and the lower blade.

[0020] In the utility model, by arranging the double-layer blades, the rotation of the rotating shaft will drive the upper blade and the lower blade to rotate coaxially and in the same direction. On the one hand, by setting the double-rotor ring motor structure in cooperation with the double-layer rotor structure, the increase of the motor torque and the lift is realized, and the flight efficiency is improved; on the other hand, the double-layer blades play a role in dissipating heat from the motor. The specific heat dissipation method is as follows: when the rotating shaft drives the upper blade and the lower blade to rotate, at this time, the upper blade and the lower blade will surely generate a downward downwash airflow due to providing lift, and the downwash airflow generated by the upper blade will take away the heat outside the drive system.

[0021] Preferably, the motor stator is located on the periphery of the middle part of the rotating shaft in the axial direction, and the upper rotor ring and the lower rotor ring are symmetrically distributed above and below the motor stator.

[0022] After adopting this technical solution, it should be noted that the upper rotor ring and the upper rotor ring are arranged on the rotating shaft and form a double-rotor structure with the motor stator. The double-rotor structure can increase the power density of the motor, so that higher power output can be obtained in a limited space, the output speed of the rotating shaft is increased. In addition, the compact structure of the double-rotor structure reduces the complexity of the transmission mechanism, and also improves the space utilization rate and the power transmission efficiency.

[0023] The rotor power system further includes a radial limiting component and / or an axial supporting component. The radial limiting component is located on the side of the rotor ring away from the motor stator, and is used to keep the rotating shaft relatively stable during rotation in the radial direction, so as to avoid the swinging of the rotating shaft in the radial direction; the axial supporting component is located between the rotor ring and the radial limiting component, and is used to control the support between the axial supporting component and the rotor ring.

[0024] In the utility model, the stability of the rotating shaft during rotation is improved and the rotational friction is reduced through the radial limiting component, and low-friction start and low-energy-consumption smooth flight are realized by setting the axial supporting component.

[0025] Preferably, the radial limiting component is located above the upper rotor ring and / or below the lower rotor ring, and the axial supporting component is located between the radial limiting component and the upper rotor ring and / or between the radial limiting component and the lower rotor ring.

[0026] Preferably, the radial limiting assembly includes an upper radial limiting assembly and a lower radial limiting assembly, the axial supporting assembly includes an upper axial supporting assembly and a lower axial supporting assembly, the upper axial supporting assembly is located above the upper rotor ring, the lower axial supporting assembly is located below the lower rotor ring, the upper radial limiting assembly is located above the upper axial supporting assembly, and the lower radial limiting assembly is located below the lower axial supporting assembly.

[0027] In the utility model, the upper radial limiting assembly and the lower radial limiting assembly arranged around the rotating shaft keep the rotating shaft relatively stable in the radial direction during operation, avoiding radial swing when the rotating shaft rotates. The radial limiting assemblies are arranged both above and below, further enhancing the radial stability of the rotating shaft; the cooperation of the upper axial supporting assembly and the lower axial supporting assembly can achieve frictionless start-up and the smoothness and reliability during flight.

[0028] Preferably, the upper radial limiting assembly and the lower radial limiting assembly can adopt mechanical components such as ball bearings, or can also adopt magnetic levitation components such as electromagnetic and permanent magnetic components.

[0029] The upper axial supporting assembly and the lower axial supporting assembly adopt electromagnets.

[0030] Preferably, the upper radial limiting assembly, the lower radial limiting assembly, the upper axial supporting assembly, and the lower axial supporting assembly all adopt electromagnets.

[0031] Preferably, the upper axial supporting assembly includes an upper axial iron core and an upper axial coil arranged on the upper axial iron core, and the upper axial coil corresponds to the upper end of the upper rotor ring; the lower axial supporting assembly includes a lower axial iron core and two lower axial coils arranged on the lower axial iron core, and the two lower axial coils correspond to the lower end of the lower rotor ring.

[0032] Components for magnetic levitation in cooperation with the axial coils are arranged on the upper rotor ring and the lower rotor ring, or the upper rotor ring and the lower rotor ring are both made of ferromagnetic materials.

[0033] In the utility model, by reasonably arranging the coils of the upper axial supporting assembly and the lower axial supporting assembly, the overall stability of the device is ensured. It should be noted that in special cases, the performance requirements of the lower axial supporting assembly are higher, so two lower axial coils are arranged to improve the reliability and stability during the operation of the motor.

[0034] In the present utility model, the rotating components include a rotating assembly and a rotor blade.

[0035] The non-rotating components include other components in the rotor blade power system except the rotating components.

[0036] The working process of the rotor blade system is as follows:

[0037] During the startup phase: The upper axial support assembly generates electromagnetic suction force to lift the rotor ring relative to the motor stator to a stable levitation state.

[0038] Ascending phase: During the process of the lift force increasing to equal the gravity of the rotating components, the electromagnetic suction force of the upper axial support assembly decreases to zero as the lift force increases. When the lift force continues to increase, the electromagnetic suction force of the lower axial support assembly increases to equal the gravity of the non-rotating components and maintains the stability of the levitation state.

[0039] Descending phase: As the lift force decreases, the electromagnetic suction force of the lower axial support assembly continues to maintain the stability of the levitation state.

[0040] Stopping phase: As the lift force gradually decreases to zero, the electromagnetic suction force of the lower axial support assembly gradually decreases to zero while the electromagnetic suction force of the upper axial support assembly gradually increases to maintain the levitation state of the rotor relative to the motor stator. When the lift force is zero, the electromagnetic suction force of the upper axial support assembly also gradually decreases to zero until the second rotor ring contacts the lower axial support assembly.

[0041] Preferably, the radial limiting assembly includes a radial iron core and radial coils arranged on the radial iron core. A plurality of the radial coils are uniformly arranged along the circumferential direction. The present invention preferably sets 4 radial coils to enclose the rotating shaft to provide stable radial limitation and ensure the stability of the rotation of the central axis.

[0042] Preferably, a bracket is connected to the outside of the motor stator to fix the motor stator.

[0043] The present invention has the following advantages and beneficial effects:

[0044] 1. The present invention adopts a double-rotor structure and double-layer blades with the same axis and the same direction. On the one hand, the double-rotor structure can increase the power density of the motor, enabling higher power output in a limited space, providing a basis for increasing the rotational speed of the rotating shaft. In addition, the compact structure of the double-rotor structure reduces the complexity of the transmission mechanism, improves the space utilization rate and power transmission efficiency. On the other hand, the rotation of the rotating shaft will drive the upper-layer blades and the lower-layer blades to rotate with the same axis and the same direction. By setting the double-rotor ring motor structure in cooperation with the double-layer rotor structure, the increase of the motor torque and the lift force is realized, and the flight efficiency is improved.

[0045] 2. The rotor of the present invention realizes the improvement of the lift force by setting a double-layer blade structure and cooperating with the double-rotor ring motor structure, enhancing the load-bearing capacity. Moreover, the downwash airflow generated by the upper-layer blades will also dissipate heat from the driving motor, and the duct structure is conducive to the entry of cold air and the promotion of air flow, further improving the heat dissipation performance.

[0046] 3. The present utility model is provided with an upper radial limiting component and a lower radial limiting component to prevent the rotating shaft from swinging radially. By providing an upper axial support component and a lower axial support component, frictionless startup and low-energy magnetic levitation flight are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of the present utility model, and do not limit the embodiments of the present utility model. In the drawings:

[0048] Figure 1 is a schematic cross-sectional structure diagram of the motor of the present utility model;

[0049] Figure 2 for the present utility model Figure 1 is a schematic cross-sectional structure diagram along the A-A direction in the present utility model;

[0050] Figure 3 for the present utility model Figure 1 is a schematic cross-sectional structure diagram along the B-B direction in the present utility model;

[0051] Figure 4 is a schematic structure diagram of the upper radial limiting component of the present utility model;

[0052] Figure 5 is a schematic diagram of one embodiment of the present utility model.

[0053] The component names in the drawings are as follows:

[0054] 1 - rotating shaft; 2 - upper radial limiting component, 201 - radial iron core, 202 - radial coil; 3 - upper axial support component, 301 - upper axial iron core, 302 - upper axial coil; 4 - upper rotor ring; 5 - motor stator; 6 - lower rotor ring; 7 - lower axial support component, 701 - lower axial iron core, 702 - lower axial coil; 8 - lower radial limiting component; 9 - bracket; 10 - upper layer blade; 11 - lower layer blade, 12 - duct, 13 - coil sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0055] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in combination with embodiments and drawings. The illustrative embodiments and descriptions of the present utility model are only used to explain the present utility model and do not limit the present utility model. Embodiment

[0056] As Figures 1-4 shown, a disc motor-driven coaxial multi-layer blade rotor power system includes:

[0057] a rotor and a drive system,

[0058] The drive system includes a rotating assembly and a motor stator 5. The rotating assembly includes a rotating shaft 1 and a rotor ring disposed on the rotating shaft 1. The motor stator 5 and a rotor ring form a drive motor. The rotating assembly can rotate relative to the motor stator 5. A duct 12 communicating with the outside is formed among the rotor ring, the motor stator 5, and the rotating shaft 1.

[0059] The rotating assembly is provided with the rotor blades. The rotor blades include multiple layers of blades, and the multiple layers of blades are located above and / or below the drive motor.

[0060] In the present utility model, a disc-type motor is adopted to drive the rotation of the multiple layers of blades of the rotor blades to increase the lift force, ensuring the system lift force and flight efficiency. Embodiment

[0061] The difference between this embodiment and Embodiment 1 is that there are two rotor rings, namely an upper rotor ring 4 and a lower rotor ring 6. The motor stator 5 is located between the two rotor rings. The upper rotor ring 4 and the lower rotor ring 6 are both disposed on the rotating shaft 1. The duct 12 is formed among the upper rotor ring 4, the lower rotor ring 6, the motor stator 5, and the rotating shaft 1.

[0062] The motor stator 5 is disposed on the outer periphery of the middle part of the axial direction of the rotating shaft 1. The upper rotor ring 4 and the lower rotor ring 6 are symmetrically distributed above and below the motor stator 5. An upper layer of blades 10 is disposed at the top end of the rotating shaft 1, and a lower layer of blades 11 is disposed at the bottom end of the rotating shaft 1.

[0063] A drive assembly is disposed between the motor stator 5 and the two rotor rings. Drive coils are disposed on the motor stator 5, and permanent magnets are disposed at positions corresponding to the drive coils on the rotor rings. By energizing the drive coils and acting with the permanent magnets, a driving force is generated to drive the rotation of the rotor rings and drive the rotation of the rotating shaft 1.

[0064] In the present utility model, a dual-rotor structure is adopted to enhance the motor performance.

[0065] By providing a double-layer of blades, the rotation of the rotating shaft 1 will drive the upper layer of blades 10 and the lower layer of blades 11 to rotate coaxially and in the same direction. On the one hand, by setting the dual-rotor ring motor structure in cooperation with the double-layer rotor blade structure, the increase of the motor torque and the lift force is realized, improving the flight efficiency. On the other hand, the double-layer of blades plays a role in dissipating heat from the motor. The specific heat dissipation method is as follows: when the rotating shaft 1 drives the upper layer of blades 10 and the lower layer of blades 11 to rotate, the upper layer of blades 10 and the lower layer of blades 11 will generate a downward downwash airflow due to providing lift force. The downwash airflow generated by the upper layer of blades 10 will take away the heat outside the motor. Finally, the duct 12 is beneficial to inhaling cold air, realizing the air flow and improving the heat dissipation efficiency. Embodiment

[0066] The difference between this embodiment and Embodiment 2 is that a radial limiting component and an axial supporting component are further provided. The radial limiting component is located on the side of the rotor ring away from the motor stator 5, and the axial supporting component is located between the rotor ring and the radial limiting component.

[0067] The radial limiting component includes an upper radial limiting component 2 and a lower radial limiting component 8. The axial supporting component includes an upper axial supporting component 3 and a lower axial supporting component 7. The upper axial supporting component 3 is located above the upper rotor ring 4 of the motor, and the lower axial supporting component 7 is located below the lower rotor ring 6 of the motor. The upper radial limiting component 2 is located above the upper axial supporting component 3, and the lower radial limiting component 8 is located below the lower axial supporting component 7. By providing the upper radial limiting component 2 and the lower radial limiting component 8 on the rotating shaft 1, the rotating shaft 1 will be kept relatively stable in the radial direction during operation, avoiding the swing of the rotating shaft 1 in the radial direction. And the radial limiting components are provided both above and below, further enhancing the stability of the rotating shaft 1 in the radial direction; the upper axial supporting component 3 and the lower axial supporting component 7 cooperate to achieve better frictionless start, low-energy consumption flight and flight stability.

[0068] The upper radial limiting component 2, the lower radial limiting component 8, the upper axial supporting component 3 and the lower axial supporting component 7 all adopt electromagnets.

[0069] As Figure 2 、 Figure 3 shown, the upper axial supporting component 3 includes an upper axial iron core 301 and an upper axial coil 302 arranged on the upper axial iron core 301. The upper axial coil 302 corresponds to the upper end face of the upper rotor ring 4. A ferromagnetic body that cooperates with the upper axial coil 302 to generate magnetic force is provided on the upper end face of the upper rotor ring 4 or the upper rotor ring 4 is made of ferromagnetic material; the lower axial supporting component 7 includes a lower axial iron core 701 and two lower axial coils 702 arranged on the lower axial iron core 701. The two lower axial coils 702 correspond to the lower end of the lower rotor ring 6 of the motor. A ferromagnetic body that cooperates with the lower axial coils 702 to generate magnetic force is provided on the lower end face of the lower rotor ring 6 or the lower rotor ring 6 is made of ferromagnetic material; by reasonably setting the coils of the upper axial supporting component 3 and the lower axial supporting component 7, the overall stability of the device is ensured. It should be noted that in special cases, the performance requirements of the lower axial supporting component 7 are higher, so two lower axial coils 702 are provided to improve the reliability and stability of the motor during operation.

[0070] As Figure 4As shown, the radial limiting assembly 2 includes a radial iron core 201 and a radial coil 202 arranged on the radial iron core 201, and four radial coils 202 are evenly arranged along the circumferential direction. A ferromagnetic body that acts on the radial coil 202 is provided on the rotating shaft 1, or the rotating shaft 1 is made of ferromagnetic material, and the upper radial limiting assembly 2 and the lower radial limiting assembly 8 are arranged to have the same structure.

[0071] like Figure 1 As shown, a bracket 9 is connected to the outside of the motor stator 5 to fix the motor stator 5. Example 4

[0072] The difference between this embodiment and embodiment 3 is that a sleeve is provided on the rotor ring, and the rotor ring and the sleeve are integrally formed of ferromagnetic material. The sleeve is sleeved and fixed on the rotating shaft 1, and the rotor is connected to the sleeve. The sleeve cooperates with the radial coil 202 to generate magnetic force to play a radial limiting role. The rotor ring and the axial coil can cooperate to generate suction force, and the driving coil on the motor stator 5 and the permanent magnet on the corresponding rotor ring act to generate driving force. Example 5

[0073] The difference between this embodiment and embodiment 2 is that the upper radial limiting assembly 2 and the lower radial limiting assembly 8 use mechanical bearings such as balls. Example 6

[0074] The difference between this embodiment and embodiment 3 is that the motor stator 5 includes an iron core, a drive coil and a coil sleeve 13, the drive coil is wound on the iron core, the coil sleeve 13 encloses the drive coil, and the outside of the coil sleeve 13 is connected to a bracket 9. The heat generated by the drive coil is conducted outward through the coil sleeve 13, and part of the heat will be transferred to the bracket 9. The bracket 9 is also connected to the radial limit assembly and the axial support assembly through claws respectively. The bracket 9 is located between the upper blades 10 and the lower blades 11 of the rotor. The rotation of the blades will generate a downwash airflow to take away the heat on the bracket 9.

[0075] In the present invention, the “axial direction” refers to the direction along the axis of the rotating shaft 1 , and the “radial direction” refers to the direction perpendicular to the axis of the rotating shaft 1 .

[0076] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A disk-type motor-driven coaxial multi-layer blade rotor power system, characterized in that Comprising: A rotor and a drive system, The drive system includes a rotating assembly and a motor stator (5). The rotating assembly includes a rotating shaft (1) and at least one rotor ring disposed on the rotating shaft (1). The motor stator (5) and at least one of the rotor rings form a drive motor. The rotating assembly is capable of rotating relative to the motor stator (5). A duct (12) communicating with the outside is formed among the rotor ring, the motor stator (5), and the rotating shaft (1). The rotating assembly is provided with the rotor. The rotor includes multiple layers of blades, and the multiple layers of blades are located above and / or below the drive motor.

2. The coaxial multi-layer blade rotor power system driven by a disc motor according to claim 1, characterized in that, There are two rotor rings, namely an upper rotor ring (4) and a lower rotor ring (6). The upper rotor ring (4) and the lower rotor ring (6) are both disposed on the rotating shaft (1). The duct (12) is formed among the upper rotor ring (4), the lower rotor ring (6), the motor stator (5), and the rotating shaft (1).

3. The coaxial multi-layer blade rotor power system driven by a disc motor according to claim 2, wherein At least one layer of blades is respectively connected to both ends of the rotating shaft (1), or at least one layer of blades is respectively connected to the upper rotor ring (4) and the lower rotor ring (6).

4. The coaxial multi-layer blade rotor power system driven by a disc motor according to claim 2, wherein The rotor includes an upper layer of blades (10) and a lower layer of blades (11). The upper layer of blades (10) and the lower layer of blades (11) are respectively disposed at the upper and lower ends of the rotating shaft (1) or respectively disposed on the upper rotor ring (4) and the lower rotor ring (6), and the drive motor is located between the upper layer of blades (10) and the lower layer of blades (11).

5. A disk-type motor-driven coaxial multi-layer blade rotor power system according to any one of claims 1-4, characterized in that, A radial limiting assembly and / or an axial support assembly is also provided. The radial limiting assembly is located on the side of the rotor ring away from the motor stator (5), and the axial support assembly is located between the rotor ring and the radial limiting assembly.

6. The coaxial multi-layer blade rotor power system driven by a disc motor according to claim 5, wherein When there are two rotor rings, namely an upper rotor ring (4) and a lower rotor ring (6), the radial limiting assembly is located above the upper rotor ring (4) and / or below the lower rotor ring (6), and the axial support assembly is located between the radial limiting assembly and the upper rotor ring (4) and / or between the radial limiting assembly and the lower rotor ring (6).

7. A disk motor-driven coaxial multi-layer blade rotor power system according to claim 6, wherein The radial limiting assembly includes an upper radial limiting assembly (2) and a lower radial limiting assembly (8). The axial support assembly includes an upper axial support assembly (3) and a lower axial support assembly (7). The upper axial support assembly (3) is located above the upper rotor ring (4), the lower axial support assembly (7) is located below the lower rotor ring (6), the upper radial limiting assembly (2) is located above the upper axial support assembly (3), and the lower radial limiting assembly (8) is located below the lower axial support assembly (7).

8. A disk motor-driven coaxial multi-layer blade rotor power system according to claim 7, characterized in that, The upper axial support assembly (3) includes an upper axial iron core (301) and an upper axial coil (302) disposed on the upper axial iron core (301). The upper axial coil (302) corresponds to the upper end of the upper rotor ring (4). The lower axial support assembly (7) includes a lower axial iron core (701) and a lower axial coil (702) disposed on the lower axial iron core (701). The lower axial coil (702) corresponds to the lower end of the lower rotor ring (6).

9. A disc-type motor-driven coaxial multi-layer blade rotor power system according to claim 7, characterized in that, The radial limiting component (2) includes a radial iron core (201) and a radial coil (202) arranged on the radial iron core (201), and a plurality of the radial coils (202) are uniformly arranged along the rotating shaft.

10. A disc motor-driven coaxial multi-layer blade rotor power system according to any one of claims 1-4, 6-9, characterized in that A bracket (9) is connected to the outside of the motor stator (5).

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