Single motor submarine power supply station based on resistance type spiral blade water turbine cluster

Abstract

Single motor seabed power supply station based on resistance type spiral blade water turbine cluster, including underwater vehicle, wireless charging and connecting device, support, gravity base, data transmission module, resistance type spiral blade water turbine power generation array, planetary gear mechanism, magnetic transmission device, static sealing cavity and power generation module; the invention utilizes planetary gear system to form a power generation array by three same type resistance type spiral blade water turbines, and transmits power to double rotor motor through sun gear, outer gear ring and magnetic transmission device, and then stores energy in energy storage battery.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of seabed power supply, and particularly relates to a single-motor seabed power supply station based on a resistance type spiral blade water turbine cluster. BACKGROUND

[0002] The exploration and development of the ocean, especially the deep sea, rely on the development of marine science and technology. The generation of any marine scientific view and the development of marine disciplines must be based on reliable observation data. The underwater autonomous vehicle is a new type of mobile observation equipment for marine environment, which has an autonomous power and navigation system and can load various sensors to observe the marine environment dynamically and stereoscopically. However, due to the limitation of battery capacity, the operating range and working time of the underwater autonomous vehicle are very limited, and the energy needs to be supplemented by the ship-based recovery station, which greatly limits the observation range of the underwater autonomous vehicle and greatly increases the observation cost. The ocean buoy and the submersible buoy are also important marine observation equipment, and due to the limitation of battery capacity, their operating cycle is less than 60 days, and they cannot observe marine data for a long time. SUMMARY

[0003] The purpose of the present application is to provide a single-motor seabed power supply station based on a resistance type spiral blade water turbine cluster to solve the problem of limited observation range and high observation cost in the prior art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] The single-motor seabed power supply station based on the resistance type spiral blade water turbine cluster comprises an underwater vehicle, a wireless charging and connecting device, a support, a gravity base, a data transmission module, a resistance type spiral blade water turbine power generation array, a planetary gear mechanism, a magnetic transmission device, a static sealing cavity and a power generation module. The static sealing cavity is arranged on the gravity base, and the power generation module is arranged inside the static sealing cavity. One end of the support is arranged on the side surface of the static sealing cavity, and the resistance type spiral blade water turbine power generation array is arranged between two parallel planetary gear mechanisms. The lower planetary gear mechanism is connected to the power generation module through the magnetic transmission device. The wireless charging and connecting device is arranged on the support and connected to the power generation module, and is used for supplying power to the underwater vehicle. The data transmission module is connected to the support and is used for data transmission of the underwater vehicle.

[0006] Further, the planetary gear mechanism comprises a sun gear, an outer gear, a planet wheel and a connecting shaft. The two ends of the connecting shaft are respectively provided with the sun gears, the outer gear is arranged outside the sun gears, and the three planet wheels are arranged between the outer gear and the sun gears. The centers of the three planet wheels are connected through the planet carrier.

[0007] Further, the resistance type spiral blade water turbine power generation array comprises three resistance type spiral blade water turbines, which are arranged between the planetary gears at both ends of the connecting shaft; each of the three resistance type spiral blade water turbines is provided with a circular end plate above and below, and the planetary gears are connected through the circular end plates.

[0008] Further, the height-diameter ratio of the resistance type spiral blade water turbine is between 2 and 3, the distance between the adjacent two water turbines is 1.2-2 times the diameter of the water turbine, the phase difference between the adjacent two water turbines is 90 degrees, and the three resistance type spiral blade water turbines are arranged in a regular triangle.

[0009] Further, the power generation module comprises a double-rotor generator and a charging battery; the double-rotor generator is connected to the charging battery, and the double-rotor generator comprises an inner rotor and an outer rotor.

[0010] Further, the magnetic transmission device comprises a first magnetic transmission device, a second magnetic transmission device, a third magnetic transmission device and a fourth magnetic transmission device; the first magnetic transmission device is provided with a mounting ring above, the mounting ring above the first magnetic transmission device is connected with the outer gear ring, the main shaft at the center of the third magnetic transmission device is connected with the sun gear, the second magnetic transmission device is provided with a mounting ring below, the mounting ring below the second magnetic transmission device is connected with the outer rotor of the double-rotor generator, the central shaft below the fourth magnetic transmission device is connected with the inner rotor of the double-rotor generator; the first magnetic transmission device, the second magnetic transmission device, the third magnetic transmission device and the fourth magnetic transmission device are each composed of two groups of a plurality of centrally symmetrical permanent magnets, the permanent magnets are magnetized in the thickness direction, the magnetic poles of the adjacent permanent magnets are installed in opposite directions, and the magnetic pole installation direction of the permanent magnets is opposite to that of the adjacent permanent magnets.

[0011] Further, the resistance type spiral blade water turbine power generation array is axially and radially supported by the support device at the upper end of the support and the support device in the static sealing cavity; the support device comprises a support device shell, an external passive permanent magnetic magnetic suspension bearing, an internal passive permanent magnetic magnetic suspension bearing and a top device; the external passive permanent magnetic magnetic suspension bearing is nested in the inside of the support device shell, and the internal passive permanent magnetic magnetic suspension bearing is installed outside the top device; the external passive permanent magnetic magnetic suspension bearing and the internal passive permanent magnetic magnetic suspension bearing are radially magnetized, the inside and outside of the circular ring have different magnetic poles, and the outside of the inner ring and the inside of the outer ring have the same magnetic field; the inner ring of the passive permanent magnetic magnetic suspension bearing is connected with the central shaft end of the resistance type spiral blade water turbine power generation array through the top device, and the outer ring of the passive permanent magnetic magnetic suspension bearing is installed in the support device shell and connected with the support and the static sealing cavity.

[0012] Further, the bracket is further provided with a sensor system, and the underwater vehicle transmits data through the sensor system; the data transmission module comprises a buoy sensor system, an underwater cable and a buoy; one end of the underwater cable is connected with the buoy, and the other end is connected with the sensor system; and the buoy sensor system is arranged on the underwater cable.

[0013] Further, the buoy sensor system comprises a wheel system, a sensor system, a control system and an energy storage module, a wireless charging system and a sealed shell; the sensor system and the wheel system are arranged outside the sealed shell, the wheel system is connected with the underwater cable and is used for vertical movement; the control system and the energy storage module and the wireless charging system are arranged inside the sealed shell, the wireless charging system is connected with the control system and the energy storage module, and the control system and the energy storage module are connected with the wheel system.

[0014] Further, the underwater autonomous vehicle comprises an underwater autonomous vehicle main body, a wireless charging device and an observation system; the wireless charging device is installed at the head of the underwater autonomous vehicle main body, and the observation system is installed on the upper part of the underwater autonomous vehicle main body.

[0015] Compared with the prior art, the present application has the following technical effects:

[0016] The present application proposes a single motor seabed power supply station based on a resistance type spiral blade water turbine cluster, and the deep sea observation system is composed of a resistance type spiral blade water turbine cluster system, an underwater autonomous vehicle, a deep sea base station and a buoy system. The deep sea base station utilizes the deep sea current energy to provide energy for the underwater autonomous vehicle and the sensors carried by the underwater autonomous vehicle, and does not need to be docked for a long time to supplement energy. The underwater autonomous vehicle is provided with energy through wireless charging. Meanwhile, the planetary gear system is used to form a power generation array with three resistance type spiral blade water turbines of the same type, and the power of the three turbines is transmitted to the double-rotor motor through the sun gear, the outer gear ring and the magnetic transmission device, and then the energy storage battery is charged.

[0017] The present application combines three resistance type spiral blade water turbines into a high-power power generation cluster by using planetary gear device, installs three water turbines on three planetary gears fixed on the rotating shaft, divides the resultant moment of the three water turbines to the outer ring gear and the sun gear by the torque shunting function of the planetary gear device, connects the magnetic transmission device to the sun gear and the outer ring gear, transmits the torque of the magnetic transmission device connected to the sun gear to the magnetic transmission device connected to the inner rotor of the generator, and transmits the torque of the magnetic transmission device connected to the outer ring gear to the magnetic transmission device connected to the outer rotor of the generator, so as to realize the transmission of the moment of the resistance type spiral blade water turbine cluster to the double rotor generator by the non-contact transmission technology. The electric energy generated by the motor is used to charge the underwater autonomous vehicle. The technology can input the power of multiple water turbines into a single generator, saving the power generation components. With the advantages of the planetary gear device, the compact installation of three resistance type spiral blade water turbines can be realized, and the adjacent rotor rotation centers are arranged in a regular triangle, and the distance between the adjacent rotor rotation centers is 1.2-2 times the diameter of the water turbine, so that the coupling gain effect between the turbines can be realized, and the power generation capacity is further increased. Further, the array of regular triangles can have high efficiency in the flow direction facing most directions, reducing the yaw device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the system assembly diagram of the present application;

[0019] Figure 2 is a partial perspective view of the power generation unit and the transmission unit;

[0020] Figure 3 is an assembly drawing of the transmission accessories of the present application;

[0021] Figure 4 is an internal schematic diagram of the planetary gear structure;

[0022] Figure 5 is an axonometric view of the magnetic levitation support device;

[0023] Figure 6 is an installation relationship diagram of the four magnetic transmission devices;

[0024] Figure 7 is a top view of the magnetic transmission device;

[0025] Figure 8 is a structural schematic diagram of the buoy sensor system;

[0026] Figure 9 is an axonometric view of the underwater autonomous vehicle;

[0027] Figure 10 is a working schematic diagram of the single motor seabed power station based on the resistance type spiral blade water turbine cluster. DETAILED DESCRIPTION

[0028] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0029] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] A single-motor submarine power supply station based on a resistance type spiral blade water turbine cluster, comprising a support 1, two magnetic suspension support devices 2, a resistance type spiral blade water turbine cluster 3, wherein the resistance type spiral blade water turbine 31, the resistance type spiral blade water turbine 32, the resistance type spiral blade water turbine 33, a planetary gear mechanism 4, two groups of magnetic transmission devices 5 connected with the motor connection end of the rotating shaft, comprising a first magnetic transmission device 511 connected with the outer gear ring, a second magnetic transmission device 512 connected with the first magnetic transmission device 511 and matched with the first magnetic transmission device 511 and connected with the generator outer rotor, a third magnetic transmission device 521 connected with the sun gear, a fourth magnetic transmission device 522 connected with the generator inner rotor and matched with the third magnetic transmission device 521, a static sealing cavity 6, a double-rotor generator 61, a rechargeable battery 62, an underwater vehicle 7, a wireless charging and connection device 8, a gravity base 9, a sensor system 10, a buoy sensor system 11, an underwater cable 12, and a buoy 13.

[0031] Figure 1is the system assembly diagram, including the support 1, the magnetic levitation support device 2 between the support 1 and the static sealing cavity 6 supports the resistance type spiral blade water turbine power generation array 3 in the device and keeps stable. Three spiral blade water turbines are combined into the power generation array 3 through three planetary gears 42 of the planetary gear device 4, the torque and power of the planetary gear device are shunted, the total power of the power generation cluster is transmitted to the sun gear 41 and the outer ring 43 respectively, and the rotation directions of the two are opposite. The first magnetic transmission device 511 is installed on the outer ring 43 and rotates synchronously, and the third magnetic transmission device 521 is installed on the sun gear and rotates synchronously. The torque is transmitted to the double rotor generator by using the non-contact transmission characteristics of the magnetic transmission device. Specifically, the third magnetic transmission device 521 connected with the sun gear 41 transmits torque to the fourth magnetic transmission device 522 connected with the inner rotor of the double rotor generator 61, and the magnetic transmission device 511 connected with the outer ring 43 transmits torque to the second magnetic transmission device 512 connected with the outer rotor of the double rotor generator 61. The inner rotor and the outer rotor of the double rotor generator rotate in opposite directions, so that the torque of the resistance type spiral blade water turbine cluster 3 is transmitted to the double rotor generator 61 by the non-contact transmission technology, and the double rotor generator 61 generates electric energy, which is stored in the support energy storage battery 62 to charge the underwater autonomous vehicle 7 and the buoy 11. Three resistance type spiral blade water turbines 3 are installed on the planetary gears 42 of the planetary gear device 4, and the planetary gears 42 can only rotate. The underwater vehicle 7 can be charged and continued to travel through the wireless charging and connection device 8 at the power generation base station, and data transmission is carried out through the sensor system 10, and the data of the buoy sensor system 11 are transmitted to the command unit through the buoy 13.

[0032] Figure 2 is a partial perspective view of the power generation unit and the transmission unit. The power generation unit is the resistance type spiral blade water turbine cluster 3, which is axially and radially supported by the support device 2 located at the upper end of the support and the support device 2 located in the static sealing cavity. The resultant torque of the water turbine cluster 3 is transmitted to the sun gear 41 and the outer ring 43 through the planetary gear device. The third magnetic transmission device 521 connected with the sun gear 41 transmits torque to the fourth magnetic transmission device 522 connected with the inner rotor of the double rotor generator 61, and the first magnetic transmission device 511 connected with the outer ring 43 transmits torque to the second magnetic transmission device 512 connected with the outer rotor of the generator 61, so that the torque of the resistance type spiral blade water turbine cluster 3 is transmitted to the double rotor generator 61 by the non-contact transmission technology, and the non-contact transmission of the water turbine and the generator is realized, which avoids the use of dynamic sealing technology under water.

[0033] Figure 3is the transmission accessory assembly drawing of the present application, which is the core innovation point of the present application. The power source of the two generators is a resistance type spiral blade water turbine cluster 3, which is composed of three resistance type spiral blade water turbines 31 of the same type. Each water turbine has a circular end plate above and below, which reduces the tip loss and also plays a role in fixing the blades and connecting the planetary gears. The height-diameter ratio of the water turbine is between 2 and 3, the distance between the adjacent two water turbines is 1.2-2 water turbine diameters, and the phase difference between the adjacent two water turbines is 90 degrees. The coupling gain effect between the adjacent water turbines is ensured in this distance range, and the 90-degree phase difference further increases the coupling gain effect of the turbine and more importantly reduces the torque fluctuation of the entire device. The design of the spiral blade also reduces the torque fluctuation and reduces the moment dead point. The three water turbines are arranged in a regular triangle, which is a high-efficiency power generation cluster structure. This cluster has good power generation effect in the face of most direction flow, reducing the yaw device. The three water turbines are combined into one through the planetary gear device 4 and are installed on the planetary gears 42 arranged in a regular triangle. The planetary gear shaft is fixed and can only rotate. The planetary gear device 4 synthesizes the torque of the three water turbines and realizes torque shunting. The third magnetic transmission device 521 connected with the sun gear 41 transmits torque to the fourth magnetic transmission device 522 connected with the inner rotor of the generator 61, and the first magnetic transmission device 511 connected with the outer gear 43 transmits torque to the second magnetic transmission device 512 connected with the outer rotor of the generator 61, thereby realizing the transmission of the torque of the resistance type spiral blade water turbine cluster 3 to the double rotor generator 61 through the non-contact transmission technology.

[0034] The innovation point of the combination of the planetary gear mechanism and the three water turbines is not only to realize the high-efficiency cluster power generation of the three resistance type spiral blade water turbines, but also to ensure the same speed of the three turbines and the 90-degree phase difference at all times due to the characteristics of the planetary gear mechanism, and to design the optimal distance to increase the coupling gain effect, so that the power generation of the entire power generation cluster is greater than the sum of the isolated power generation of the three water turbines. The planetary gear device combines the three rotating shafts at different positions into two output shafts, and the positions of the shafts are the same. The power of the three turbines is input into one generator through the double rotor generator, which reduces the power generation components and increases the speed of the cutting magnetic induction line in the motor. For the low-speed resistance type water turbine, the speed of the generator is increased without additional devices. In combination with the two groups of magnetic transmission devices with different electromagnetic steps, the dynamic sealing problem is avoided.

[0035] Figure 4For the internal schematic diagram of the planetary gear structure, the mounting relationship of different components can be seen, wherein the first magnetic transmission device 511 is connected with the outer gear ring 43, the third magnetic transmission device 521 is connected with the sun gear 41, the rotation directions of the two are opposite, the torque of the first magnetic transmission device 511 is transmitted to the second magnetic transmission device 512 connected with the outer rotor of the double-rotor generator 61 without contact, the torque of the third magnetic transmission device 521 is transmitted to the fourth magnetic transmission device 522 connected with the inner rotor of the double-rotor generator 61 without contact, and non-contact transmission is realized. The pitch and phase difference of the three resistance-type spiral blade water turbines mounted on the planetary gear device 4 can be adjusted during the installation process, and the reasonable pitch is 1.2-2 times the diameter of the water turbine; further, the number of rotors of the cluster can be further increased by increasing the number of planetary gears, so as to increase the power generation. The planetary gear rotating shaft is fixed, and only has one degree of freedom of rotation.

[0036] Figure 5 For the axial view of the magnetic suspension support device, the external structure of the magnetic suspension support device 2 is composed of a support device shell 21, and the internal structure of the magnetic suspension support device 2 is composed of an external passive permanent magnetic suspension bearing 22, an internal passive permanent magnetic suspension bearing 23 and a top tip device 24. The external passive permanent magnetic suspension bearing 22 is nested in the inside of the support device shell 21, and the internal passive permanent magnetic suspension bearing 23 is installed outside the top tip 24. The magnetization mode of the external passive permanent magnetic suspension bearing 22 and the internal passive permanent magnetic suspension bearing 23 is radial magnetization, and the inside and outside of the circular ring have different magnetic poles. Among them, the outside of the inner ring and the inside of the outer ring have the same magnetic field. The inner ring of the passive permanent magnetic suspension bearing 22 is connected with the center shaft end of the turbine 3 through the top tip 24, the outer ring of the passive permanent magnetic suspension bearing 22 is installed in the support device shell 21 and connected with the support 1, and radial stable force is generated by the magnetic field. The top tip 24 contacts the support device shell 21 to generate axial stable force, thereby fixing the position of the reverse differential water turbine 3, so that it can only rotate in the axial direction.

[0037] Figure 6 It is the installation relationship diagram of the four magnetic transmission devices, it can be seen that the installation ring above the first magnetic transmission device 511 is connected with the outer gear ring 43, the main shaft at the center of the third magnetic transmission device 521 is connected with the sun gear 41, and a certain distance is kept between the two transmission devices, and the magnetic force does not affect each other; the lower installation ring of the second magnetic transmission device 512 is used to connect with the outer rotor of the double-rotor generator 6, and the shaft below the fourth magnetic transmission device 522 is connected with the inner rotor of the double-rotor generator 6, and a certain distance is kept between the two magnetic transmission devices, and the magnetic force does not affect each other.

[0038] Figure 7Fig. 9 is a top view of the first magnetic transmission device 511 and the second magnetic transmission device 512. The magnetic transmission device 5 is composed of two groups of several center-symmetrically installed permanent magnets, which are magnetized in the thickness direction, and the magnetic poles of adjacent permanent magnets are installed in opposite directions. The magnetic pole installation direction of the permanent magnet is opposite to that of the adjacent permanent magnet. Due to the principle of opposite poles attracting and like poles repelling, torque can be transmitted in the case of magnetic transmission misalignment. This non-contact transmission can tailor the dynamic sealing assembly, and the whole static seal can realize torque transmission, greatly reducing the risk of leakage. In addition, the speed ratio of each pair of magnetic transmission devices is equal to the ratio of the number of magnetic poles of the magnetic transmission device, so the number of magnetic poles can be controlled to achieve different speed-up ratios, thereby tailoring the speed-up machine (gearbox) which is a vulnerable component, further increasing the stability and reliability of the system.

[0039] Figure 8 Fig. 10 is a structural schematic diagram of the buoy sensor system. The buoy sensor system 11 is composed of a wheeled system 111, a sensor system 112, a control system and energy storage module 113, a wireless charging system 114 and a sealed shell 115. The buoy sensor system 11 moves vertically on the underwater cable 12 through the wheeled system 111. In this process, the sensor system 112 measures hydrological data. During operation, the energy of the wheeled system 111 and the sensor system 112 is provided by the control system and energy storage module 113. When the energy in the control system and energy storage module 113 is less than the critical value, it is lowered to the bottom of the underwater cable 12, and charged and information is exchanged through the wireless charging device and the connecting device 8 installed in the deep sea base station.

[0040] Figure 9 Fig. 11 is an isometric view of the underwater autonomous vehicle 7. The underwater autonomous vehicle 7 is composed of an underwater autonomous vehicle body 72, a wireless charging device 73 and an observation system 71. The wireless charging device 73 is installed at the head of the underwater autonomous vehicle body 72. The observation system 71 is installed on the upper part of the underwater autonomous vehicle body 72.

[0041] Figure 10The working schematic of the single motor seabed power supply station based on the resistance type spiral blade water turbine cluster. The deep sea base station is installed and fixed to the seabed by the research ship. Single or several underwater autonomous vehicles are released to the nearby sea area by the research ship, and cruise near the deep sea base station. The underwater autonomous vehicle carries a detection device to measure hydrological data for a long time. The resistance type spiral blade water turbine rotates under the action of water flow, converts the kinetic energy in the sea current into mechanical energy of the resistance type spiral blade water turbine, and transmits the mechanical energy to the double rotor generator 61 through the magnetic transmission device 5, thereby converting it into electrical energy and storing it in the energy storage system 62 in the form of chemical energy. In the case of low energy level of the underwater autonomous vehicle, it moves to the deep sea base station near the wireless charging device and the connecting device 8, and the electrical energy in the deep sea base station is transferred to the underwater autonomous vehicle through wireless charging to realize the long-term cruise of the underwater autonomous vehicle, and the hydrological information is transmitted to the deep sea base station through wireless information transmission. This working mode can also be worked with several underwater autonomous vehicles by one deep sea base station, or worked with several underwater autonomous vehicles by several deep sea base stations to obtain higher system stability. The buoy sensor system 11 moves vertically on the underwater cable 12 through the wheel system 111. In this process, the sensor system 112 measures hydrological data. During operation, the energy of the wheel system 111 and the sensor system 112 is provided by the control system and the energy storage module 113. When the energy in the control system and the energy storage module 113 is less than the critical value, it is lowered to the bottom of the underwater cable 12, and charged and information exchanged through the wireless charging device and the connecting device 8 installed in the deep sea base station. The deep sea base station uploads data to the satellite through the buoy 13 floating on the water surface, and receives real-time control commands transmitted by the satellite through the buoy.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A single-motor subsea power supply station based on a drag-type helical blade turbine cluster, characterized in that, The device includes an underwater vehicle (7), a wireless charging and connection device (8), a support (1), a gravity base (9), a data transmission module, a drag-type spiral blade turbine power generation array (3), a planetary gear mechanism (4), a magnetic transmission device (5), a static sealed cavity (6), and a power generation module. The static sealed cavity (6) is set on the gravity base (9), and the power generation module is set inside the static sealed cavity (6). One end of the support (1) is set on the side of the static sealed cavity (6), and the drag-type spiral blade turbine power generation array (3) is set between two parallel planetary gear mechanisms (4). The lower planetary gear mechanism (4) is connected to the power generation module through the magnetic transmission device (5). The wireless charging and connection device (8) is set on the support (1) and connected to the power generation module to supply power to the underwater vehicle (7). The data transmission module is connected to the bracket (1) for data transmission of the underwater vehicle (7); The drag-type spiral blade turbine generator array (3) is axially and radially supported by a support device (2) located at the upper end of the support frame (1) and a support device (2) located in the static sealed cavity (6); the support device (2) includes a support device shell (21), an external passive permanent magnet levitation bearing (22), an internal passive permanent magnet levitation bearing (23), and a gyroscope tip device (24); the external passive permanent magnet levitation bearing (22) is nested inside the support device shell (21), and the internal passive permanent magnet levitation bearing (23) is installed on the outside of the gyroscope tip (24). The external passive permanent magnet levitation bearing (22) and the internal passive permanent magnet levitation bearing (23) are magnetized by radiation. The inner and outer rings have different magnetic poles, and the outer ring of the inner ring and the inner ring of the outer ring have the same magnetic field. The inner ring of the passive permanent magnet levitation bearing (22) is connected to the end of the central shaft of the resistance type spiral blade turbine generator array (3) through the tip (24). The outer ring of the passive permanent magnet levitation bearing (22) is installed on the support device shell (21) and thus connected to the bracket (1) and the static sealing cavity (6). The magnetic transmission device (5) includes a first magnetic transmission device (511), a second magnetic transmission device (512), a third magnetic transmission device (521), and a fourth magnetic transmission device (522). A mounting ring is provided above the first magnetic transmission device (511), and the mounting ring above the first magnetic transmission device (511) is connected to the external gear ring (43). The main shaft at the center of the third magnetic transmission device (521) is connected to the sun gear (41). A mounting ring is provided below the second magnetic transmission device (512), and the mounting ring below the second magnetic transmission device (512) is... The fourth magnetic drive device (522) is connected to the outer rotor of the dual rotor generator (61), and the central shaft below it is connected to the inner rotor of the dual rotor generator (61). The first magnetic drive device (511), the second magnetic drive device (512), the third magnetic drive device (521) and the fourth magnetic drive device (522) are all composed of two sets of several centrally symmetrically installed permanent magnets. The permanent magnets are magnetized in the thickness direction, the magnetic poles of adjacent permanent magnets are installed in opposite ways, and the magnetic poles of the permanent magnets are installed in opposite directions to the adjacent permanent magnets.

2. The single-motor subsea power supply station based on a drag-type helical blade turbine cluster according to claim 1, characterized in that, The planetary gear mechanism (4) includes a sun gear (41), an external gear ring (43), planet gears (42) and a connecting shaft (44); the two ends of the connecting shaft (44) are respectively provided with sun gears (41), an external gear ring (43) is provided outside the sun gear (41), and three planet gears (42) are provided between the external gear ring (43) and the sun gear (41), and the centers of the three planet gears (42) are connected by a planet carrier.

3. The single-motor subsea power supply station based on a drag-type helical blade turbine cluster according to claim 2, characterized in that, The drag-type helical blade turbine power generation array (3) includes three drag-type helical blade turbines (31), which are arranged between planetary gears (42) at both ends of the connecting shaft (44); each of the three drag-type helical blade turbines (31) has a circular end plate at the top and bottom, which connects to the planetary gears (42).

4. The single-motor subsea power supply station based on a drag-type helical blade turbine cluster according to claim 3, characterized in that, The height-to-diameter ratio of the drag-type helical blade turbine (31) is between 2 and 3. The distance between two adjacent turbines is 1.2 to 2 times the turbine diameter. The phase difference between two adjacent turbines is 90 degrees. The three drag-type helical blade turbines (31) are arranged in an equilateral triangle.

5. The single-motor subsea power supply station based on a drag-type helical blade turbine cluster according to claim 2, characterized in that, The power generation module includes a dual-rotor generator (61) and a rechargeable battery (62); the dual-rotor generator (61) is connected to the rechargeable battery (62), and the dual-rotor generator (61) includes an inner rotor and an outer rotor.

6. The single-motor subsea power supply station based on a drag-type helical blade turbine cluster according to claim 1, characterized in that, A sensor system (10) is also installed on the support (1). The underwater vehicle (7) transmits data through the sensor system (10). The data transmission module includes a buoy sensor system (11), an underwater cable (12), and a buoy (13). One end of the underwater cable (12) is connected to the buoy (13), and the other end is connected to the sensor system (10). The buoy sensor system (11) is installed on the underwater cable (12).

7. The single-motor subsea power supply station based on a drag-type helical blade turbine cluster according to claim 6, characterized in that, The buoy sensor system (11) includes a wheeled system (111), a sensor system (112), a control system and energy storage module (113), a wireless charging system (114), and a sealed housing (115). The sensor system (112) and the wheeled system (111) are located outside the sealed housing (115). The wheeled system (111) is connected to an underwater cable (12) for vertical movement. The control system and energy storage module (113) and the wireless charging system (114) are located inside the sealed housing (115). The wireless charging system (114) is connected to the control system and energy storage module (113), and the control system and energy storage module (113) is connected to the wheeled system (111).

8. The single-motor subsea power supply station based on a drag-type helical blade turbine cluster according to claim 1, characterized in that, The underwater autonomous vehicle (7) includes an underwater autonomous vehicle body (72), a wireless charging device (73), and an observation system (71); the wireless charging device (73) is installed at the head of the underwater autonomous vehicle body (72), and the observation system (71) is installed on the upper part of the underwater autonomous vehicle body (72).

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