Magnetic levitation rotor sail

Abstract

The present application relates to the technical field of rotating drum sail, and particularly relates to a magnetic suspension rotating drum sail, which comprises an inner supporting rod, an outer rotating drum, a traction unit, an axial supporting unit and a radial supporting unit; the axis of the inner supporting rod is vertical; the outer rotating drum is arranged outside the inner supporting rod and can rotate around the axis of the inner supporting rod; the traction unit is installed on the inner supporting rod and the outer rotating drum and can generate radial magnetic traction force on the outer rotating drum; the axial supporting unit is installed on the inner supporting rod and the outer rotating drum and can generate axial magnetic supporting force on the outer rotating drum; and the radial supporting unit is installed on the inner supporting rod and the outer rotating drum and can generate radial magnetic supporting force on the outer rotating drum.

Description

Technical Field

[0001] This invention relates to the field of rotary sail technology, specifically to a magnetically levitated rotary sail. Background Technology

[0002] Spinner sails, typically installed on the deck of a ship, consist of a vertically oriented spindle that can adjust its rotation speed according to wind direction to fully utilize wind power. Compared to traditional sails, spinner sails occupy less deck space, are less affected by severe wind conditions, and are most effective against crosswinds. Spinner sails utilize the Magnus effect; the rotating spindle causes the surrounding fluid to rotate, increasing the fluid velocity on one side and decreasing it on the other. The increased velocity leads to decreased pressure, and the decreased velocity leads to increased pressure, thus creating a lateral pressure difference and generating a lateral thrust perpendicular to the spindle's direction of motion. This thrust assists the ship in forward movement or starting.

[0003] Existing sprockets have their outer sprockets directly fixed to the output shaft of the drive motor, or connected to the drive motor output shaft via transmission gears, or connected to the drive motor via transmission components, or connected to the deck of the hull via bearings. However, the wind conditions at sea are quite complex, resulting in significant wear and tear between the mechanical components that make up the sprocket, leading to a high frequency of maintenance and limiting the service life of existing sprockets. Summary of the Invention

[0004] To address the problem of the short service life of existing rotary sails, this invention provides a magnetically levitated rotary sail.

[0005] A magnetically levitated rotary sail provided to achieve the purpose of this invention includes:

[0006] The inner support rod has a vertical axis.

[0007] The outer rotating cylinder is installed outside the inner support rod and can rotate around the axis of the inner support rod;

[0008] The traction unit, installed on the inner support rod and the outer rotating cylinder, can generate radial magnetic traction force on the outer rotating cylinder;

[0009] The axial support unit, installed on the inner support rod and the outer rotating cylinder, can generate axial magnetic support force on the outer rotating cylinder;

[0010] The radial support unit, installed on the inner support rod and the outer rotating cylinder, can generate radial magnetic support force on the outer rotating cylinder.

[0011] In some specific embodiments, there are two or more axial support units, at least one of which is installed between the upper part of the inner support rod and the upper part of the outer rotating cylinder, and at least one of which is installed between the lower part of the inner support rod and the lower part of the outer rotating cylinder.

[0012] In some specific embodiments, each axial support unit includes:

[0013] The upper spacer ring is installed on the inner wall of the outer rotating cylinder, and its plane is perpendicular to the axis of the outer rotating cylinder.

[0014] The lower spacer ring is installed on the inner wall of the outer rotating cylinder, and its plane is perpendicular to the axis of the outer rotating cylinder.

[0015] The first upper magnetic ring is installed on the bottom surface of the upper spacer ring;

[0016] The first lower magnetic ring is installed on the top surface of the lower spacer ring;

[0017] The first mounting base is fitted onto the inner support rod;

[0018] The second upper magnetic ring is installed on the top surface of the first mounting base and is positioned directly opposite the first upper magnetic ring, and can generate a repulsive force with the first upper magnetic ring.

[0019] The second lower magnetic ring is installed on the bottom surface of the first mounting base and is positioned directly opposite the first lower magnetic ring, thus generating a repulsive force between them.

[0020] In some specific embodiments, the radial support unit includes:

[0021] The third lower magnetic ring is fitted onto the bottom of the inner support rod;

[0022] The fourth lower magnetic ring, which consists of multiple sets, is vertically oriented and is uniformly fixed to the bottom of the outer rotating cylinder along its circumference; each set of fourth lower magnetic rings generates a repulsive force with the third lower magnetic ring.

[0023] In some specific embodiments, there are 6-8 sets of fourth lower magnetic rings.

[0024] In some specific embodiments, the traction unit includes:

[0025] The second mounting bracket is fitted onto the top of the inner support rod;

[0026] Multiple induction coils are evenly mounted on the side wall of the second mounting base along the circumference of the second mounting base; one end of each induction coil faces the inner wall of the outer rotating cylinder.

[0027] A magnetic sleeve is fitted onto the outside of the top of the outer rotating cylinder or inserted through the inside of the top of the outer rotating cylinder.

[0028] In some specific embodiments, it also includes:

[0029] The top cover is fixed to the top of the magnetic sleeve, and the bottom surface has an arc-shaped structure.

[0030] In some specific embodiments, it also includes:

[0031] The driver is fixed to the top of the inner support rod, with the output shaft facing upwards;

[0032] The magnetic coupling has one end fixedly connected to the bottom surface of the top cover and the other end fixedly connected to the output shaft of the driver.

[0033] In some specific embodiments, the inner support rod includes:

[0034] Lower support section;

[0035] The bottom end of the upper support section is detachably connected to the top end of the lower support section;

[0036] The outer rotating cylinder includes:

[0037] Lower section;

[0038] The bottom of the middle section is detachably connected to the top of the lower section;

[0039] The bottom of the upper cylinder section is detachably connected to the top of the middle cylinder section.

[0040] In some specific embodiments, it also includes:

[0041] The base is detachably connected to the top and bottom of the lower support section.

[0042] The beneficial effects of this invention are as follows: The magnetic levitation rotary sail of this invention features an inner support rod that supports the traction unit, axial support unit, radial support unit, and actuator. An outer rotary cylinder, located outside the inner support rod, can rotate around its axis to generate a lateral thrust perpendicular to the cylinder's direction of movement. The traction unit, mounted on the inner support rod and outer rotary cylinder, generates a radial magnetic traction force on the outer cylinder, preventing it from detaching from the inner support rod. The axial support unit, also mounted on the inner support rod and outer rotary cylinder, generates an axial magnetic support force on the outer cylinder, effectively reducing its axial movement in strong winds and preventing it from contacting the deck. The radial support unit, also mounted on the inner support rod and outer rotary cylinder, generates a radial magnetic support force on the outer cylinder, effectively reducing its radial movement in strong winds and preventing it from contacting the inner support rod. Compared to existing rotary sails, the outer rotary cylinder remains suspended in space. When the outer swivel rotates, it has no direct or indirect contact with stationary components such as the drive motor, inner support rod, and deck of the hull. Facing complex wind conditions at sea, there is almost no wear between the mechanical components that make up the swivel, which greatly reduces the maintenance frequency and extends the service life of the swivel. Attached Figure Description

[0043] Figure 1 This is a structural schematic diagram of some specific embodiments of a magnetically levitated rotary sail according to the present invention;

[0044] Figure 2 yes Figure 1 The cross-sectional view along AA of the magnetic levitation rotary sail shown;

[0045] Figure 3 yes Figure 2 A magnified view of a portion of region B in the middle;

[0046] Figure 4 yes Figure 2 A magnified view of a portion of region C in the middle;

[0047] Figure 5 yes Figure 2 A magnified view of a portion of region D.

[0048] In the attached diagram, 110 is the inner support rod; 111 is the lower support section; 112 is the upper support section; 120 is the outer rotating cylinder; 121 is the lower cylinder section; 122 is the middle cylinder section; 123 is the upper cylinder section; 130 is the traction unit; 131 is the second mounting base; 132 is the induction coil; 133 is the magnetic sleeve; 140 is the axial support unit; 141 is the upper spacer ring; 142 is the lower spacer ring; 143 is the first upper magnetic ring; 144 is the first lower magnetic ring; 145 is the first mounting base; 146 is the second upper magnetic ring; 147 is the second lower magnetic ring; 150 is the radial support unit; 151 is the third lower magnetic ring; 152 is the fourth lower magnetic ring; 160 is the top cover; 170 is the driver; 180 is the magnetic coupling; and 190 is the base. Detailed Implementation

[0049] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0050] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0051] In the description of this invention, it should be understood that the terms "top", "bottom", "inner", "outer", "axis", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention or 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. Therefore, they should not be construed as limitations on this invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "linking," "hinging," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] As mentioned in the background section, existing sprockets have their outer sprocket directly fixed to the output shaft of the drive motor, or connected to the output shaft of the drive motor via a transmission gear, or connected to the drive motor via a transmission assembly, or connected to the deck of the hull via a bearing. However, the wind conditions at sea are quite complex, resulting in significant wear and tear between the mechanical components that make up the sprocket, leading to a high frequency of maintenance and limiting the service life of existing sprockets.

[0055] It should be noted that the axial magnetic support force generated on the outer rotating drum refers to the force being applied along the axial direction of the outer rotating drum. The radial magnetic support force generated on the outer rotating drum refers to the force being applied along the radial direction of the outer rotating drum. The radial magnetic traction force generated on the outer rotating drum refers to the traction force being applied along the radial direction of the outer rotating drum.

[0056] To improve the above problems, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A magnetically levitated rotary sail is provided, comprising an inner support rod 110, an outer rotary drum 120, a traction unit 130, an axial support unit 140, and a radial support unit 150. The inner support rod 110 has a vertical axis and supports the traction unit 130, the axial support unit 140, the radial support unit 150, and the actuator 170. The outer rotary drum 120 is fitted over the inner support rod 110 and can rotate about the axis of the inner support rod 110 to generate a lateral thrust perpendicular to the direction of the rotary drum's movement. The traction unit 130 is mounted on the inner support rod 110 and the outer rotary drum 120 and can generate a radial magnetic traction force on the outer rotary drum 120, preventing the outer rotary drum 120 from detaching from the inner support rod 110. Axial support unit 140 is mounted on the inner support rod 110 and the outer rotating cylinder 120, providing axial magnetic support to the outer rotating cylinder 120. In strong winds, it effectively reduces the axial movement of the outer rotating cylinder 120, preventing it from contacting the deck or detaching from the inner support rod 110. Radial support unit 150 is mounted on the inner support rod 110 and the outer rotating cylinder 120, providing radial magnetic support to the outer rotating cylinder 120. In strong winds, it effectively reduces the radial movement of the outer rotating cylinder 120, preventing it from contacting the inner support rod 110. Compared to existing rotating sails, the outer rotating cylinder 120 remains suspended in space. When the outer swivel 120 rotates, it has no direct or indirect contact with stationary components such as the drive motor, inner support rod 110, and the deck of the hull. Faced with complex wind conditions at sea, there is almost no contact wear between the mechanical components that make up the swivel, which greatly reduces the maintenance frequency and extends the service life of the swivel.

[0057] Specifically, in the exemplary example, there are two or more axial support units 140, at least one of which is installed between the upper part of the inner support rod 110 and the upper part of the outer rotating cylinder 120, and at least one of which is installed between the lower part of the inner support rod 110 and the lower part of the outer rotating cylinder 120. The upper axial support unit 140 can provide axial magnetic support force to the outer rotating cylinder 120 from above, and the lower axial support unit 140 can provide axial magnetic support force to the outer rotating cylinder 120 from below. The upper and lower axial support units 140 cooperate with each other to ensure that the outer rotating cylinder 120 is subjected to uniform force from top to bottom.

[0058] Specifically, in the demonstration example, refer to Figure 2 and Figure 3Each axial support unit 140 includes an upper spacer ring 141, a lower spacer ring 142, a first upper magnetic ring 143, a first lower magnetic ring 144, a first mounting base 145, a second upper magnetic ring 146, and a second lower magnetic ring 147. The upper spacer ring 141 is mounted on the inner wall of the outer rotating cylinder 120, and its surface is perpendicular to the axis of the outer rotating cylinder 120. The lower spacer ring 142 is mounted on the inner wall of the outer rotating cylinder 120, and its surface is perpendicular to the axis of the outer rotating cylinder 120. The first mounting base 145 is sleeved on the inner support rod 110, and its outer wall is located between the bottom surface of the upper spacer ring 141 and the top surface of the lower spacer ring 142. The first upper magnetic ring 143 is mounted on the bottom surface of the upper spacer ring 141. The first lower magnetic ring 144 is mounted on the top surface of the lower spacer ring 142. The second upper magnetic ring 146 is mounted on the top surface of the first mounting base 145 and is vertically opposite to the first upper magnetic ring 143, generating a repulsive force with the first upper magnetic ring 143. The second lower magnetic ring 147 is mounted on the bottom surface of the first mounting base 145 and is vertically opposite to the first lower magnetic ring 144, generating a repulsive force with the first lower magnetic ring 144. The repulsive force between the second upper magnetic ring 146 and the first upper magnetic ring 143 drives the outer rotating cylinder 120 to tend to move upward. The repulsive force between the second lower magnetic ring 147 and the first lower magnetic ring 144 drives the outer rotating cylinder 120 to tend to move downward. The downward and upward tendencies are balanced axially in the outer rotating cylinder 120, providing axial support for the levitation of the outer rotating cylinder 120.

[0059] Preferably, magnetic ring mounting grooves are provided on the bottom surface of the upper spacer 141, the top surface of the lower spacer 142, and the top and bottom surfaces of the first mounting base 145. This makes the axial support unit 140 occupy less space and has a more compact structure.

[0060] In extreme wind conditions, the first mounting base 145, upper spacer 141, and lower spacer 142 work together to prevent the outer rotating cylinder 120 from moving too much in the axial direction. At the same time, in order to prevent the upper spacer 141 or the lower spacer 142 from impacting the first mounting base 145 and causing damage, rubber buffer pads can be installed on the bottom surface of the upper spacer 141 and the top surface of the lower spacer 142, respectively.

[0061] Specifically, in the exemplary embodiment, the radial support unit 150 includes a third lower magnetic ring 151 and a fourth lower magnetic ring 152. The third lower magnetic ring 151 is fitted onto the bottom of the inner support rod 110. Multiple sets of fourth lower magnetic rings 152 are present, with their axes vertically aligned and evenly fixed to the bottom of the outer rotating cylinder 120 along its circumference. Each set of fourth lower magnetic rings 152 generates a repulsive force with the third lower magnetic ring 151. There are 6, 7, or 8 sets of fourth lower magnetic rings 152, providing radial support forces in six, seven, or eight directions. These radial support forces in six, seven, or eight directions are balanced. Each set of fourth lower magnetic rings 152 consists of 3, 4, or 5 fourth lower magnetic rings 152.

[0062] Specifically, in the exemplary embodiment, the traction unit 130 includes a second mounting base 131, a plurality of induction coils 132, and a magnetic sleeve 133. The second mounting base 131 is fitted onto the top end of the inner support rod 110. The plurality of induction coils 132 are uniformly installed in blind holes in the side wall of the second mounting base 131 along its circumference. One end face of each induction coil 132 faces the inner wall of the outer rotating cylinder 120. The magnetic sleeve 133 is fitted onto the outside of the top of the outer rotating cylinder 120 or penetrates the inside of the top of the outer rotating cylinder 120, and is made of a magnetic material. When current is input to each induction coil, the plurality of induction coils generate radial magnetic attraction to the magnetic sleeve 133 in multiple directions, thereby generating radial magnetic traction force on the top of the outer rotating cylinder 120 in multiple directions.

[0063] Preferably, buffer pads are installed on the four opposite outer walls of the second mounting base 131. When the outer rotating cylinder 120 collides with the second mounting base 131, the buffer pads can significantly reduce the possibility of damage to the outer rotating cylinder 120.

[0064] Specifically, in the example, the magnetically levitated rotary sail also includes a top cover 160, which is fixed to the top of the magnetic sleeve 133 and has an arc-shaped bottom surface. It should be noted that when the outer rotating cylinder 120 rotates, the top cover is affected by lift and tends to move upwards. Therefore, designing the bottom surface of the top cover 160 as an arc-shaped structure allows Bernoulli's principle to be used to make the top cover 160 have a downward tendency.

[0065] Specifically, in the exemplary embodiment, the magnetically levitated rotary sail also includes a driver 170 and a magnetic coupling 180. The driver 170 is fixed to the top of the inner support rod 110, with its output shaft facing upwards. One end of the magnetic coupling 180 is fixedly connected to the bottom surface of the top cover 160, and the other end is fixedly connected to the output shaft of the driver 170. The driver 170 drives the top cover 160 and the outer rotary sail 120 to rotate about the axis of the inner support rod 110.

[0066] Preferably, the driver 170 is a drive motor or a servo motor.

[0067] In some practical applications, each axial support unit 140 includes an upper spacer ring 141, a lower spacer ring 142, a first upper induction coil, a first lower induction coil, a first mounting base 145, a second upper induction coil, and a second lower induction coil. The upper spacer ring 141 is mounted on the inner wall of the outer rotating cylinder 120, and its surface is perpendicular to the axis of the outer rotating cylinder 120. The lower spacer ring 142 is mounted on the inner wall of the outer rotating cylinder 120, and its surface is perpendicular to the axis of the outer rotating cylinder 120. The first mounting base 145 is sleeved on the inner support rod 110, and its outer wall is located between the bottom surface of the upper spacer ring 141 and the top surface of the lower spacer ring 142. A 5cm gap is reserved between the top surface of the first mounting base 145 and the bottom surface of the upper spacer ring 141. A 5cm gap is reserved between the bottom surface of the first mounting base 145 and the bottom surface of the lower spacer ring 142. Induction coil mounting slots are respectively provided on the bottom surface of the upper spacer ring 141, the top surface of the lower spacer ring 142, and the top and bottom surfaces of the first mounting base 145. The first upper induction coil is mounted in the induction coil mounting slot on the bottom surface of the upper spacer ring 141. The first lower induction coil is mounted in the induction coil mounting slot on the top surface of the lower spacer ring 142. The second upper induction coil is mounted in the induction coil mounting slot on the top surface of the first mounting base 145, and is vertically opposite to the first upper induction coil, generating a repulsive force with it. The second lower induction coil is mounted in the induction coil mounting slot on the bottom surface of the first mounting base 145, and is vertically opposite to the first lower induction coil, generating a repulsive force with it. The real-time strength of the repulsive force can be adjusted by the real-time magnitude of the current input to the first upper induction coil, the second upper induction coil, the first lower induction coil, and the second lower induction coil. Meanwhile, distance sensors are installed on the bottom surface of the upper spacer 141 and the top surface of the lower spacer 142, respectively, to detect in real time the distance between the top surface of the first mounting base 145 and the bottom surface of the upper spacer 141, and the distance between the bottom surface of the first mounting base 145 and the bottom surface of the lower spacer 142. The radial support unit 150 includes a third lower induction coil and a fourth lower induction coil. There are multiple third lower induction coils, which are evenly installed on the bottom of the support rod 110 along the circumference of the inner support rod 110, with one end of each third lower induction coil facing the inner wall of the outer rotating cylinder 120. There are multiple fourth lower induction coils, which are evenly fixed on the inner wall of the bottom of the outer rotating cylinder 120 along the circumference of the outer rotating cylinder 120. The multiple fourth lower induction coils are arranged opposite to the multiple third lower induction coils. Each third lower induction coil and each fourth lower induction coil generate a repulsive force. The real-time intensity of the repulsive force can be adjusted by the real-time magnitude of the current input to each third lower induction coil and each fourth lower induction coil. Distance sensors are installed on the four inner walls of the bottom of the outer rotating cylinder 120 to detect the distance between the four inner walls of the outer rotating cylinder 120 and the four outer walls of the inner support rod 110 in real time. A 5cm gap is reserved between the outer wall of the second mounting base 131 and the inner wall of the outer rotating cylinder 120.Distance sensors are respectively installed on the four inner walls of the top of the outer rotating cylinder 120, which are used to detect the distance between the four inner walls of the outer rotating cylinder 120 and the four outer walls of the second mounting base 131 in real time. The magnetic levitation rotating cylinder sail also includes a controller, which is electrically connected to each of the first upper induction coil, each of the first lower induction coil, each of the second upper induction coil, each of the second lower induction coil, each of the third lower induction coil, each of the fourth lower induction coil, each induction coil 132 of the traction unit 130, the driver 170, the distance sensor installed on the bottom surface of the upper spacer ring 141, the distance sensor installed on the top surface of the lower spacer ring 142, each distance sensor installed on the top of the outer rotating cylinder 120, and each distance sensor installed on the bottom of the outer rotating cylinder 120. The controller can receive distance signals detected by distance sensors mounted on the bottom surface of the upper spacer ring 141, the top surface of the lower spacer ring 142, the top of the outer rotating drum 120, and the bottom of the outer rotating drum 120. Based on the distance signals, the controller controls the input current magnitude of each first upper induction coil, each first lower induction coil, each second upper induction coil, each second lower induction coil, each third lower induction coil, each fourth lower induction coil, and each induction coil 132 of the traction unit 130 to ensure the stable levitation of the outer rotating drum 120. Simultaneously, the controller can control the driver 170 to operate, thereby enabling the outer rotating drum 120 to function.

[0068] Specifically, in the exemplary example, the inner support rod 110 includes a lower support section 111 and an upper support section 112. The bottom end of the upper support section 112 is detachably connected to the top end of the lower support section 111 via a flange and bolts. The outer rotating cylinder 120 includes a lower cylinder section 121, a middle cylinder section 122, and an upper cylinder section 123. The bottom end of the middle cylinder section 122 is detachably connected to the top end of the lower cylinder section 121 via bolts. The bottom end of the upper cylinder section 123 is detachably connected to the top end of the middle cylinder section 122 via bolts. The inner support rod 110 and the outer rotating cylinder 120 are disassembled into multiple components to facilitate transportation, disassembly, replacement, and installation.

[0069] Specifically, in the example, a base 190 is also included, the top of which is detachably connected to the bottom of the lower support section 111 by bolts. The base 190 is fixedly connected to the deck by bolts. Of course, the bottom of the lower support section 111 can also be directly rotatably connected to the deck via a pivot.

[0070] In the description of this specification, the references to terms such as "an embodiment," "some embodiments," "example," "specific example," "a specific embodiment," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0071] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A magnetically levitated rotary sail, characterized in that, include: The inner support rod has a vertical axis. The outer rotating cylinder is fitted over the inner support rod and can rotate around the axis of the inner support rod; The traction unit, installed on the inner support rod and the outer rotating cylinder, is capable of generating radial magnetic traction force on the outer rotating cylinder; An axial support unit, installed on the inner support rod and the outer rotating cylinder, is capable of generating an axial magnetic support force on the outer rotating cylinder; A radial support unit, installed on the inner support rod and the outer rotating cylinder, is capable of generating a radial magnetic support force on the outer rotating cylinder; The traction unit includes: The second mounting base is fitted onto the top end of the inner support rod; Multiple induction coils are evenly mounted on the side wall of the second mounting base along the circumference of the second mounting base; one end face of each induction coil faces the inner wall of the outer rotating cylinder. A magnetic sleeve is fitted onto the outside of the top of the outer rotating cylinder or inserted into the inside of the top of the outer rotating cylinder; Also includes: The top cover is fixed to the top of the magnetic sleeve, and the bottom surface has an arc-shaped structure; The driver is fixed to the top of the inner support rod, with its output shaft facing upwards; The magnetic coupling has one end fixedly connected to the bottom surface of the top cover and the other end fixedly connected to the output shaft of the driver.

2. The magnetically levitated rotary sail according to claim 1, characterized in that, The axial support unit comprises two or more units, with at least one installed between the upper part of the inner support rod and the upper part of the outer rotating cylinder, and at least one installed between the lower part of the inner support rod and the lower part of the outer rotating cylinder.

3. The magnetically levitated rotary sail according to claim 2, characterized in that, Each of the axial support units includes: The upper spacer ring is installed on the inner wall of the outer rotating cylinder, and its surface is perpendicular to the axis of the outer rotating cylinder. The lower spacer ring is installed on the inner wall of the outer rotating cylinder, and its surface is perpendicular to the axis of the outer rotating cylinder. The first upper magnetic ring is installed on the bottom surface of the upper spacer ring; The first lower magnetic ring is installed on the top surface of the lower spacer ring; The first mounting base is sleeved on the inner support rod; The second upper magnetic ring is installed on the top surface of the first mounting base and is positioned directly opposite the first upper magnetic ring, and can generate a repulsive force with the first upper magnetic ring. The second lower magnetic ring is installed on the bottom surface of the first mounting base and is positioned directly opposite the first lower magnetic ring, thus generating a repulsive force between them.

4. The magnetically levitated rotary sail according to any one of claims 1 to 3, characterized in that, The radial support unit includes: The third lower magnetic ring is fitted onto the bottom of the inner support rod; The fourth lower magnetic ring, which consists of multiple sets, is vertically oriented and uniformly fixed to the bottom of the outer rotating cylinder along its circumference; each set of the fourth lower magnetic ring and the third lower magnetic ring generate a repulsive force against each other.

5. The magnetically levitated rotary sail according to claim 4, characterized in that, The fourth lower magnetic ring consists of 6-8 groups.

6. The magnetically levitated rotary sail according to any one of claims 1 to 3, characterized in that, The inner support rod includes: Lower support section; The bottom end of the upper support section is detachably connected to the top end of the lower support section; The outer rotating cylinder includes: Lower section; The bottom end of the middle cylinder section is detachably connected to the top end of the lower cylinder section; The bottom end of the upper cylinder section is detachably connected to the top end of the middle cylinder section.

7. The magnetically levitated rotary sail according to claim 6, characterized in that, Also includes: The base is detachably connected at its top to the bottom of the lower support section.

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