CN113501115A - Underwater vehicle magnetic gear coupling propulsion system, working method and underwater vehicle - Google Patents
Underwater vehicle magnetic gear coupling propulsion system, working method and underwater vehicle Download PDFInfo
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- CN113501115A CN113501115A CN202110872070.6A CN202110872070A CN113501115A CN 113501115 A CN113501115 A CN 113501115A CN 202110872070 A CN202110872070 A CN 202110872070A CN 113501115 A CN113501115 A CN 113501115A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000003068 static effect Effects 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 abstract description 8
- 230000009189 diving Effects 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
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- 230000005662 electromechanics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/08—Propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/14—Control of attitude or depth
- B63G8/16—Control of attitude or depth by direct use of propellers or jets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
- H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
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Abstract
The invention provides a magnetic gear coupling propulsion system of an underwater vehicle, a working method and the underwater vehicle, comprising: the submersible vehicle comprises a submersible vehicle shell, an electric control system, a driving motor, a magnetic gear coupler and a propeller; an electric control system and a driving motor are arranged in the shell of the underwater vehicle, and one end of the shell of the underwater vehicle is provided with a magnetic gear coupler; the electric control system is connected with a driving motor, the driving motor is connected with a magnetic gear coupler, the magnetic gear coupler is connected with a propeller, and the propeller is arranged on the outer side of the shell of the underwater vehicle. This device adopts magnetic gear coupler to realize the mechanical connection of the inside high-speed power supply of ware casing of diving boat and the outside low-speed screw of ware of diving boat, can replace transmission machinery reduction gear to accomplish the function that high low rotational speed matches on the one hand, and on the other hand can realize the isolation of the interior outer space of ware casing of diving boat, has avoided the sound sealed requirement like this, has reduced the withstand voltage design degree of difficulty of system, has promoted the leakproofness and the reliability of system.
Description
Technical Field
The invention relates to the field of underwater vehicle propulsion systems, in particular to a magnetic gear coupling propulsion system of an underwater vehicle, a working method and the underwater vehicle.
Background
The ocean and other water areas occupying over seven parts of the surface area of the earth contain rich strategic mineral resources, energy resources and biological resources, and the high-performance underwater vehicle is key equipment for surveying and exploiting various types of ocean and underwater resources. At present, various underwater vehicles mostly adopt an electric propulsion scheme as a unique power source, and the performance of an electric propulsion system directly determines the speed, range, maneuverability, stability, reliability and control precision of the underwater vehicle.
As a major component of underwater vehicles, a propulsion system is typically arranged aft of the vehicle to perform the propulsion function. The propulsion system generally includes a driving motor, a motor controller, a propeller, etc., and the propeller is driven by the rotation of the motor. The propulsion system of an underwater vehicle requires better performance than the common industrial drive systems. According to the basic principle of electromechanics, the power density and the rotating speed of the driving motor are in a direct proportion relation, so that a high-rotating-speed motor is hopefully selected to improve the power density of a propulsion system, save the internal space of the underwater vehicle, reduce the weight of the whole underwater vehicle and improve the endurance mileage. However, the rotational speed of the propellers of the undersea vehicle is usually relatively low and cannot be directly matched with the high-speed driving motor, and at this time, an additional mechanical gearbox is usually required to be added to couple the high-speed driving motor and the low-speed propeller. However, mechanical gearboxes carry the risks of mechanical losses, heating and reliability, reducing the efficiency of the propulsion system of the underwater vehicle, increasing the weight of the underwater vehicle, sacrificing range.
On the other hand, the sealing problem of the underwater vehicle is one of the key problems due to high underwater pressure, severe environment and high water body corrosivity. In general, electromechanical devices such as power batteries, power converters, driving motors and mechanical reduction gear boxes need to work in a clean and dry environment at normal temperature and normal pressure, namely, the electromechanical devices need to be placed inside a submarine vehicle shell. Because the source of the rotary power (the driving motor and the mechanical reduction gear box) is arranged in the shell of the underwater vehicle, and the propeller is arranged outside the shell of the underwater vehicle, two rotary parts need to penetrate through the shell for mechanical connection, and a dynamic and static sealing device is inevitably needed to be designed to prevent water from permeating into the shell of the underwater vehicle, so that the pressure-resistant design requirement of the system is greatly increased. The high-efficiency reliable dynamic and static sealing device has high design difficulty, high cost and low reliability, and particularly, the dynamic and static sealing device becomes one of bottleneck problems influencing the comprehensive performance of the underwater vehicle along with the continuous development of the working range of the underwater vehicle to a larger water depth and a more complex underwater environment.
In particular to an underwater vehicle propulsion system, the problem of enhancing the sealing performance of an underwater vehicle by avoiding using a dynamic and static sealing device needs to be solved.
Patent document CN111703563A provides a bladeless submerged propulsion system comprising a main base, a set of vertical thrusters and a set of horizontal thrusters. The main substrate comprises a shell, a variable-frequency direct-current permanent magnet motor, a cable interface, a supercharging device, a water inlet pipeline, a water outlet pipeline and the like; the vertical propeller group is used for providing power for the bladeless submerged propulsion system to float upwards, and the horizontal propeller group is used for providing power for the bladeless submerged propulsion system to advance, retreat and turn; and the water outlet pipeline is provided with an electromagnetic valve for adjusting the size and the direction of water flow of each branch outlet pipeline.
Patent document CN102530219A relates to an electric propulsion system comprising: the electric propulsion device comprises a propulsion motor and two sets of inverters, the input of each set of inverter is connected with the power supply device, the output of each set of inverter is connected with the input of the propulsion motor, the output of the propulsion motor is connected with the mechanical output device, and the complete machine control device is respectively connected with each set of inverter, the power supply device and the mechanical output device.
The above patent fails to solve the problem of avoiding using a dynamic and static sealing device and enhancing the sealing performance of the underwater vehicle.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a magnetic gear coupling propulsion system of an underwater vehicle, a working method and the underwater vehicle.
According to the invention, the magnetic gear coupling propulsion system of the underwater vehicle comprises: the submersible vehicle comprises a submersible vehicle shell, an electric control system, a driving motor, a magnetic gear coupler and a propeller;
the electric control system and the driving motor are arranged in the underwater vehicle shell, and the magnetic gear coupler is arranged at one end of the underwater vehicle shell;
the electric control system is connected with the driving motor, the driving motor is connected with the magnetic gear coupler, the magnetic gear coupler is connected with the propeller, and the propeller is arranged on the outer side of the submersible vehicle shell.
Preferably, the magnetic gear coupler includes: the high-speed end, the low-speed end and the static magnetic adjusting ring;
the high-speed end is installed on the inner side of the underwater vehicle shell, the low-speed end is installed on the outer side of the underwater vehicle shell, and the static magnetic adjusting ring is embedded on the underwater vehicle shell.
Preferably, the high-speed end, the static magnetic adjusting ring and the low-speed end are coaxially arranged, a physical air gap is arranged between the high-speed end and the static magnetic adjusting ring, and a physical air gap is arranged between the low-speed end and the static magnetic adjusting ring;
the high-speed end is in transmission connection with the driving motor, and the low-speed end is in transmission connection with the propeller.
Preferably, the magnetic gear coupler further comprises: low pole pair number permanent magnet magnetic poles and high pole pair number permanent magnet magnetic poles;
the low-pole-pair permanent magnet magnetic poles are coaxially arranged on the outer side of the high-speed end, and the high-pole-pair permanent magnet magnetic poles are coaxially arranged on the inner side of the low-speed end;
the number of pole pairs of the permanent magnet with the low number of pole pairs is less than that of the permanent magnet with the high number of pole pairs.
Preferably, the stationary magnetic tuning ring comprises: the magnetic conductive metal block and the non-magnetic metal block;
a plurality of metal magnetic conduction blocks and a plurality of metal non-magnetic conduction blocks are arranged;
the metal magnetic conduction blocks and the metal non-magnetic conduction blocks are arranged at intervals and enclose the static magnetic regulation ring.
Preferably, the driving motor includes: a stator winding, a stator, and a rotor;
the rotor and the stator are coaxially arranged, and the stator winding is arranged on the stator;
the rotor is coaxially connected with the high-speed end in a transmission manner;
a physical air gap is provided between the stator and the rotor.
Preferably, the electronic control system comprises: the power battery, the power converter and the control unit;
the power battery is electrically connected with the power converter, the power converter is electrically connected with the stator winding, and the control unit is electrically connected with the power converter.
Preferably, the propeller is connected with the low-speed end through a connecting rod, and the rotation center of the low-speed end is coincided with the rotation center line of the propeller.
Preferably, the invention also provides a working method of the magnetic gear coupling propulsion system of the underwater vehicle, which comprises the following steps:
step S1, under the instruction of the control unit, the power battery is converted by the power converter to obtain a proper electric energy form to be led into the stator winding, and the driving motor works;
step S2, converting the electric energy into mechanical energy by the driving motor, and driving the high-speed end to synchronously rotate by the rotor;
and step S3, utilizing the magnetic field modulation effect, the high-speed end drives the low-speed end to rotate at a low speed, and the low-speed end drives the propeller to synchronously rotate at a low rotating speed.
Preferably, the submersible vehicle uses the underwater vehicle magnetic gear coupling propulsion system.
Preferably, the driving motor includes: permanent magnet synchronous motors, asynchronous motors, electrically excited synchronous motors and direct current motors;
preferably, the power battery comprises: the fuel cell, the super capacitor, the flywheel energy storage and the prime motor are matched with the generator;
preferably, the variable ratio of the rotating speed of the high-speed end to the rotating speed of the low-speed end is equal to the inverse pole pair number of the low-pole pair permanent magnet magnetic pole and the high-pole pair permanent magnet magnetic pole.
Compared with the prior art, the invention has the following beneficial effects:
1. the device adopts the driving motor to complete the conversion from electric energy to mechanical energy, has high system power density and good integration level, can obviously reduce the weight and the volume of the whole machine, and improves the range and the maneuverability of the underwater vehicle;
2. the device avoids using a mechanical reduction gear to complete the coupling of the driving motor and the propeller, improves the system integration level and efficiency, reduces the weight of the underwater vehicle, and more importantly avoids the problems of additional mechanical loss, heating and reliability of the mechanical gear;
3. the device adopts the magnetic gear coupler to realize the mechanical connection between a high-speed power source inside the shell of the underwater vehicle and a low-speed propeller outside the underwater vehicle, so that on one hand, the function of matching high and low rotating speeds can be completed by replacing a transmission mechanical reduction gear, and on the other hand, the isolation of the internal and external spaces of the shell of the underwater vehicle can be realized, namely, a mechanical connecting part is not required to penetrate through the shell to couple a driving motor and the propeller, thereby avoiding the requirements on dynamic and static sealing, greatly reducing the pressure-resistant design difficulty of the system and improving the sealing property and the reliability of the system;
4. the magnetic gear coupler adopted by the device is of a permanent magnetic gear structure, and the high-magnetic energy product permanent magnets are respectively arranged at the high-speed end and the low-speed end of the magnetic gear coupler, so that the system efficiency and the power density are improved;
5. the device adopts a driving mode that the power converter is matched with the driving motor, and can convert electric energy into a proper form by utilizing the power converter so as to meet the requirements of different working conditions on a propulsion system of the underwater vehicle and ensure the efficiency, the maneuverability and the voyage of the whole machine.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic diagram of a magnetic gear coupling propulsion system;
FIG. 2 is a schematic cross-sectional view of a magnetic gear coupler;
shown in the figure:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
As shown in fig. 1, a magnetic gear coupling propulsion system of an underwater vehicle comprises: the submersible vehicle comprises a submersible vehicle shell 1, an electric control system, a driving motor 4, a magnetic gear coupler 6 and a propeller 7; an electric control system and a driving motor 4 are installed inside a shell 1 of the underwater vehicle, a magnetic gear coupler 6 is installed at one end of the shell 1 of the underwater vehicle, the electric control system is connected with the driving motor 4, the driving motor 4 is connected with the magnetic gear coupler 6, the magnetic gear coupler 6 is connected with a propeller 7, and the propeller 7 is arranged on the outer side of the shell 1 of the underwater vehicle. The drive motor 4 includes: stator winding 41, stator 42, and rotor 43; the rotor 43 and the stator 42 are coaxially arranged, the stator winding 41 is arranged on the stator 42, the rotor 43 is coaxially connected with the high-speed end 61 in a transmission mode, and a physical air gap is arranged between the stator 42 and the rotor 43. The electric control system comprises: a power battery 2, a power converter 3, and a control unit 5; the power battery 2 is electrically connected with the power converter 3, the power converter 3 is electrically connected with the stator winding 41, and the control unit 5 is electrically connected with the power converter 3. The magnetic gear coupling propulsion system of the underwater vehicle can be used for the underwater vehicle.
As shown in fig. 2, the magnetic gear coupler 6 includes: a high-speed end 61, a low-speed end 62, a static magnetic adjusting ring 63, a low pole pair permanent magnet magnetic pole 64 and a high pole pair permanent magnet magnetic pole 65; the high-speed end 61 is arranged on the inner side of the submarine vehicle shell 1, the low-speed end 62 is arranged on the outer side of the submarine vehicle shell 1, and the static magnetic adjusting ring 63 is embedded on the submarine vehicle shell 1. The high-speed end 61, the static magnetic adjusting ring 63 and the low-speed end 62 are coaxially arranged, a physical air gap is arranged between the high-speed end 61 and the static magnetic adjusting ring 63, a physical air gap is arranged between the low-speed end 62 and the static magnetic adjusting ring 63, the high-speed end 61 is in transmission connection with the driving motor 4, and the low-speed end 62 is in transmission connection with the propeller 7. The low-pole-pair permanent magnet magnetic poles 64 are coaxially arranged on the outer side of the high-speed end 61, the high-pole-pair permanent magnet magnetic poles 65 are coaxially arranged on the inner side of the low-speed end 62, and the number of pole pairs of the low-pole-pair permanent magnet magnetic poles 64 is less than that of the high-pole-pair permanent magnet magnetic poles 65. The stationary magnet adjusting ring 63 includes: the plurality of metal magnetic conduction blocks 66 and the plurality of metal non-magnetic conduction blocks 67 are arranged, and the metal magnetic conduction blocks 66 and the plurality of metal non-magnetic conduction blocks 67 are arranged at intervals and surround the static magnetic adjusting ring 63. The propeller 7 is connected with the low-speed end 62 through a connecting rod, and the rotating center of the low-speed end 62 is coincided with the rotating center line of the propeller 7.
The working method of the magnetic gear coupling propulsion system of the underwater vehicle comprises the following steps: step S1, under the instruction of the control unit 5, the power battery 2 is converted by the power converter 3 to obtain a proper electric energy form to be led into the stator winding 41 to drive the motor 4 to work; step S2, the driving motor 4 converts the electric energy into mechanical energy, and the rotor 43 drives the high-speed end 61 to rotate synchronously; in step S3, the high-speed end 61 drives the low-speed end 62 to rotate at a low speed by using the magnetic field modulation effect, and the low-speed end 62 drives the propeller 7 to rotate synchronously at a low speed.
Example 2
Example 2 is a preferred example of example 1.
As shown in fig. 1 and 2, the magnetic gear coupling propulsion system of the underwater vehicle comprises: the submersible vehicle comprises a submersible vehicle shell 1, a power battery 2, a power converter 3, a driving motor 4, a control unit 5, a magnetic gear coupler 6 and a propeller 7. Wherein, the power battery 2, the power converter 3, the driving motor 4 and the control unit 5 are positioned inside the shell 1 of the underwater vehicle, and the propeller 7 is positioned outside the shell 1 of the underwater vehicle. The magnetic gear coupler 6 includes: a high-speed end 61, a low-speed end 62, a static magnetic adjusting ring 63, a low pole pair permanent magnet magnetic pole 64, a high pole pair permanent magnet magnetic pole 65, a metal magnetic conduction block 66 and a metal non-magnetic conduction block 67. Wherein, there is a physical air gap between the high-speed end 61 and the static magnetic adjusting ring 63, and there is a physical air gap between the static magnetic adjusting ring 63 and the low-speed end 62. The low pole pair permanent magnet poles 64 are mounted on the high speed end 61, they are located inside the submersible hull 1; the high pole pair permanent magnet poles 65 are mounted on the low speed end 62, they are located outside the submersible hull 1; the static magnetic adjusting ring 63 is composed of metal magnetic conduction blocks 66 and metal non-magnetic conduction blocks 67 which are arranged at intervals, and the metal magnetic conduction blocks and the metal non-magnetic conduction blocks are integrated on the shell 1 of the underwater vehicle, so that the function of the static magnetic adjusting ring 63 is realized by the shell 1 of the underwater vehicle. In this embodiment, the driving motor 4 is a permanent magnet synchronous motor, and includes a stator winding 41, a stator 42, and a rotor 43, wherein the stator winding 41 is disposed on the stator 42, and a physical air gap is formed between the stator 42 and the rotor 43. The power battery 2 is electrically connected with the power converter 3, and the power converter 3 is electrically connected with the stator winding 41; the rotor 43 is mechanically connected to the high speed end 61 and the low speed end 62 is mechanically connected to the propeller 7. The interior of the metal structure of the underwater vehicle shell 1 is a closed space, and the exterior of the metal structure of the underwater vehicle shell is exposed to an underwater operation environment. The power battery 2 is an electric energy storage device and is used for storing all energy required by the operation of the underwater vehicle. In addition, other electric energy storage or generation modes such as a fuel cell, a super capacitor, flywheel energy storage and the like can be matched, or a prime motor is matched with a generator and a power converter to realize power generation. The driving motor 4 can be a permanent magnet synchronous motor, an asynchronous motor, an electrically excited synchronous motor, a direct current motor and the like.
During operation, the power battery 2 provides electric energy, the control unit 5 sends a control instruction to the power converter 3 according to the working condition and the requirement of the underwater vehicle, and the direct-current electric energy provided by the power battery 2 is converted into electric energy in a proper form by using the power electronic technology principle and is transmitted to the stator winding 41, so that the driving motor 4 runs electrically to drive the rotor 43 to rotate at a high speed. Since the high speed end 61 is mechanically connected to the rotor 43, the high speed end 61 rotates at a high speed in synchronization. In the magnetic gear coupler 6, since the high-speed end 61 and the low-speed end 62 are respectively provided with the low-pole-pair permanent magnet magnetic poles 64 and the high-pole-pair permanent magnet magnetic poles 65 with different pole pairs, the high-speed end 61 rotating at a high speed is matched with the static magnetic adjusting ring 63 based on the magnetic field modulation principle and the self-deceleration magnetic gear effect, so that the low-speed end 62 can be driven to rotate at a lower rotating speed. The rotation speed transformation ratio of the high-speed end 61 and the low-speed end 62 is equal to the inverse ratio of the number of pole pairs of the low-pole-pair permanent magnet magnetic pole 64 and the high-pole-pair permanent magnet magnetic pole 65 which are respectively arranged on the high-speed end 61 and the low-pole-pair permanent magnet magnetic pole 64, namely, the product of the mechanical rotation speed of the high-speed end 61 and the number of pole pairs of the corresponding low-pole-pair permanent magnet magnetic pole 64 is equal to the product of the mechanical rotation speed of the low-speed end 62 and the number of pole pairs of the corresponding high-pole-pair permanent magnet magnetic pole 65. Referring to fig. 2, the actual number of pole pairs of the permanent magnet of the low-pole-pair permanent magnet magnetic pole 64 is three, while the actual number of pole pairs of the permanent magnet of the high-pole-pair permanent magnet magnetic pole 65 is fourteen, that is, the mechanical rotation speed of the low-speed end 62 is three fourteen times of the mechanical rotation speed of the high-speed end 61, the rotation speed is greatly reduced, the self-deceleration effect is realized, and the mechanical rotation speed of the low-speed end 62 conforms to the reasonable rotation speed of the propeller 7. Further, the low-speed end 62 of the magnetic gear coupler 6 rotating at a low speed drives the propeller 7 to synchronously rotate at a low speed, so that a propelling function is realized.
The inside and outside isolation of this device can realize the ware casing 1 of diving under water, need not use sound sealing device. By means of the space isolation and magnetic field coupling effects of the magnetic gear coupler 6, two mechanical ports, namely the high-speed end 61 and the low-speed end 62, can realize mechanical energy transmission without mechanical connection, and the problem of mechanical connection of holes formed in the shell 1 of the underwater vehicle is avoided. Therefore, the space inside the underwater vehicle can be ensured to be airtight, the pressure-resistant design requirement of the system is greatly reduced, and the reliability of the underwater vehicle is obviously improved.
The device comprises two sets of rotary motion systems with different rotating speeds. The rotor 43 of the drive motor 4 and the high speed end 61 of the magnetic gear coupling 6 are mechanically connected and they rotate synchronously at a high rotational speed. However, the low speed end 62 of the magnetic gear coupler 6 and the propeller 7 mechanically connected thereto rotate synchronously at a low rotational speed by the self-decelerating magnetic gear effect of the magnetic gear coupler 6. Therefore, the rotation speed reduction effect is realized by utilizing the non-contact magnetic field modulation principle, the high-speed rotation system and the low-speed rotation system are successfully coupled, and the rotation speeds of the two systems are matched. The high speed of the driving motor 4 can ensure the power density of the whole machine, and the low speed operation of the propeller 7 can ensure the proper navigation of the underwater vehicle. Compare traditional mechanical reduction gear, from speed reduction magnetic gear belongs to contactless scheme, has avoided fatigue and reliability risk after mechanical friction loss, the generate heat and long-time work.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. An underwater vehicle magnetic gear coupling propulsion system, comprising: the submersible vehicle comprises a submersible vehicle shell (1), an electric control system, a driving motor (4), a magnetic gear coupler (6) and a propeller (7);
the electric control system and the driving motor (4) are installed in the underwater vehicle shell (1), and the magnetic gear coupler (6) is installed at one end of the underwater vehicle shell (1);
the electric control system is connected with the driving motor (4), the driving motor (4) is connected with the magnetic gear coupler (6), the magnetic gear coupler (6) is connected with the propeller (7), and the propeller (7) is arranged on the outer side of the underwater vehicle shell (1).
2. The submersible magnetic gear coupling propulsion system according to claim 1, characterized in that the magnetic gear coupling (6) comprises: a high-speed end (61), a low-speed end (62) and a static magnetic adjusting ring (63);
the high-speed end (61) is installed on the inner side of the underwater vehicle shell (1), the low-speed end (62) is installed on the outer side of the underwater vehicle shell (1), and the static magnetic adjusting ring (63) is embedded on the underwater vehicle shell (1).
3. The magnetic gear coupling propulsion system of the underwater vehicle as claimed in claim 2, wherein: the high-speed end (61), the static magnetic adjusting ring (63) and the low-speed end (62) are coaxially arranged, a physical air gap is arranged between the high-speed end (61) and the static magnetic adjusting ring (63), and a physical air gap is arranged between the low-speed end (62) and the static magnetic adjusting ring (63);
the high-speed end (61) is in transmission connection with the driving motor (4), and the low-speed end (62) is in transmission connection with the propeller (7).
4. A magnetic gear coupling propulsion system of a submersible vehicle according to claim 3, characterized in that the magnetic gear coupling (6) further comprises: a low pole pair permanent magnet pole (64) and a high pole pair permanent magnet pole (65);
the low-pole-pair permanent magnet magnetic poles (64) are coaxially arranged on the outer side of the high-speed end (61), and the high-pole-pair permanent magnet magnetic poles (65) are coaxially arranged on the inner side of the low-speed end (62);
the number of pole pairs of the low pole pair number permanent magnet magnetic pole (64) is less than that of the high pole pair number permanent magnet magnetic pole (65).
5. The submersible magnetic gear coupling propulsion system according to claim 4, characterized in that the stationary dimming ring (63) comprises: a metal magnetic conduction block (66) and a metal non-magnetic conduction block (67);
a plurality of metal magnetic conduction blocks (66) and a plurality of metal non-magnetic conduction blocks (67) are arranged;
the metal magnetic conduction blocks (66) and the metal non-magnetic conduction blocks (67) are arranged at intervals and enclose the static magnetic regulation ring (63).
6. The magnetic gear coupling propulsion system of an underwater vehicle according to claim 5, characterized in that said drive motor (4) comprises: a stator winding (41), a stator (42), and a rotor (43);
the rotor (43) is coaxially mounted with the stator (42), and the stator winding (41) is mounted on the stator (42);
the rotor (43) is coaxially connected with the high-speed end (61) in a transmission manner;
a physical air gap is provided between the stator (42) and the rotor (43).
7. The submersible magnetic gear coupling propulsion system of claim 6, wherein the electronic control system comprises: a power battery (2), a power converter (3) and a control unit (5);
the power battery (2) is electrically connected with the power converter (3), the power converter (3) is electrically connected with the stator winding (41), and the control unit (5) is electrically connected with the power converter (3).
8. The underwater vehicle magnetic gear coupling propulsion system of claim 7, wherein: the propeller (7) is connected with the low-speed end (62) through a connecting rod, and the rotating center of the low-speed end (62) is coincided with the rotating center line of the propeller (7).
9. A method of operating a magnetic gear coupled propulsion system for a submersible vehicle as claimed in claim 8, comprising the steps of:
step S1, under the instruction of the control unit (5), the power battery (2) is converted by the power converter (3) to obtain a proper electric energy form to be led into the stator winding (41), and the driving motor (4) works;
step S2, converting the electric energy into mechanical energy by the driving motor (4), and driving the high-speed end (61) to synchronously rotate by the rotor (43);
and step S3, the high-speed end (61) drives the low-speed end (62) to rotate at a low speed by using a magnetic field modulation effect, and the low-speed end (62) drives the propeller (7) to synchronously rotate at a low rotating speed.
10. A submersible vehicle, characterized by: the underwater vehicle using a magnetic gear coupled propulsion system of the underwater vehicle as claimed in any one of claims 1 to 8.
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