Submersible rim driver

Abstract

The utility model relates to the field of drivers, in particular to a submersible wheel rim driver. The driver comprises a shell structure, the shell structure is an annular stator machine shell, a rotating annular rotating body is arranged in the stator machine shell, a stator iron core is arranged on the stator machine shell, a rotor iron core is arranged on the rotating body, a plurality of rotor blades are arranged on the inner ring face of the rotating body, and a gap exists between the stator iron core and the rotor iron core. The rotating body and the stator casing are connected through a bearing. No shaft and no dead angle exist in the middle of the flow channel, foreign matter can be prevented from winding the blades, cavitation bubbles can be avoided, and noise generated when the motor operates in water is greatly reduced. When large soft foreign matters are embedded on the paddles, the foreign matters can be easily discharged in water by means of water flow by reversing the motor. Lubricating oil liquid injected into the whole machine has the characteristic of incompressibility, and the cavity filled with the lubricating oil can support the cavity not to be extruded and deformed by water pressure in deep water.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of driver especially relates to a submersible wheel rim driver. BACKGROUND

[0002] The submersible or speedboat propulsion device on the market at present adopts the motor to drive the screw bolt to rotate and drive the submersible or propulsion device, because the middle shaft structure of the screw propeller exists in the actual use process and causes the middle shaft or propeller blade to be wound with foreign matters, thereby affecting the motor, and the middle part of the motor is provided with the shaft structure, which also increases the energy loss and error in the energy transmission process.

[0003] Therefore, it is particularly important to design a submersible wheel rim driver without shaft in the flow channel, without dead angle, which can avoid foreign matter winding the propeller blade and cavitation, greatly reduce the noise of the motor running in water and realize the wheel rim driving. UTILITY MODEL CONTENTS

[0004] The application provides a submersible wheel rim driver, which adopts the following technical scheme:

[0005] A submersible wheel rim driver, the driver comprises a shell structure, the shell structure is an annular stator shell, a rotating annular rotating body is arranged in the stator shell, a stator core is arranged on the stator shell, a rotor core is arranged on the rotating body, a plurality of rotor blades are arranged on the inner ring surface of the rotating body, a gap exists between the stator core and the rotor core, and the rotating body and the stator shell are connected through a bearing.

[0006] Optionally, the rotor core is provided with a rotor magnet.

[0007] Optionally, the rotor blades are of a curved surface type, and the number of the rotor blades is 3-9.

[0008] Optionally, sealing structures are arranged on the two sides of the rotor assembly.

[0009] Optionally, the sealing structures on the two sides of the driver form a sealed cavity with the stator core and the rotating body, and lubricating oil is injected into the sealed cavity to reduce the friction between the components in the cavity.

[0010] Optionally, the gap filling ratio of the lubricating oil is 80%-100%.

[0011] Optionally, an insulating paint skin is arranged on the surface of a copper winding group in the stator core, and the copper winding group is wrapped in the stator core and then coated by glue.

[0012] Optionally, a protruding block is arranged on the shell of the stator shell, a top wire outlet is arranged on the protruding block, and an electric wire extending from the copper winding group is stretched out of the top wire outlet.

[0013] Optionally, the driver is provided with a fairing on both sides, and the fairing is arranged in a circular arc shape.

[0014] Optionally, the fairing is provided with a drain.

[0015] Compared with the prior art, the beneficial effects of the utility model are that:

[0016] 1. The flow channel is without shaft in the middle and dead angle, so that foreign matter winding around the paddle and cavitation can be avoided, and the noise of the motor during operation in water can be greatly reduced.

[0017] 2. The lubricating oil liquid injected into the whole machine has the characteristics of being incompressible, and the cavity filled with lubricating oil can support the cavity from being extruded and deformed by water pressure in deep water.

[0018] 3. The liquid has better heat conduction than the gas, and the lubricating oil in the motor can quickly conduct the heat generated in the motor to the outside. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be described, and obviously, the technical scheme described in the description combined with the drawings is only some embodiments of the utility model, and for those skilled in the art, other embodiments and drawings can be obtained without creative labor on the basis of the embodiments shown in the drawings.

[0020] Figure 1 It is the overall structure of the utility model.

[0021] Figure 2 It is the explosion schematic view of the utility model.

[0022] Figure 3 It is the sectional view of the utility model.

[0023] Figure 4 It is the enlarged sectional view of the utility model.

[0024] Figure 5 It is the drain schematic view of the utility model.

[0025] Figure 6 It is the connection schematic view of the bearing, the stator shell and the rotating body of the utility model.

[0026] In the diagram: 1. Stator core; 2. Draft shield; 3. Stator housing; 4. Draft shield sealing ring; 5. Water seal; 6. Mirror ring fixing ring; 7. Mirror ring; 8. Mirror ring base; 9. Mirror ring base outer sealing ring; 10. Mirror ring base inner sealing ring; 11. Bearing; 12. Drain outlet; 13. Bearing inner ring washer; 14. Rotor blade; 15. Rotor core; 16. Rotor magnet; 17. Rotating body. Detailed Implementation

[0027] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] An embodiment of this utility model provides a submersible rim drive.

[0031] Example: Figures 1-6 As shown, a submersible rim drive includes a rotor blade 14, a rotor assembly, a sealing assembly, and a housing structure. The rotor assembly is disposed inside the housing structure, and the rotor assembly is sealed and protected by sealing assemblies on both sides of the rotor assembly to prevent external liquid from entering the rotor assembly and causing damage to the rotor assembly. The rotor blade 14 is disposed on the inner ring surface of the annular rotating body 17.

[0032] The shell structure is provided with a stator shell 3, which is annularly arranged, and a rotor assembly and a sealing structure are arranged in the stator shell 3. The rotor assembly comprises a stator core 1 fixedly arranged inside the stator shell 3, and the stator core 1 is provided with a copper wire winding. An inner ring of the stator core 1 is provided with a ring of a rotor core 15, and there is a gap between the stator core 1 and the rotor core 15 without contact. The rotor core 15 is provided with a rotor magnetic steel 16, and the thickness of the rotor magnetic steel 16 ranges from 1 mm to 5 mm. The rotor magnetic steel 16 can generate a stable strong magnetic field, and the rotor core 15 is fixedly installed on a rotating body 17. The rotating body 17 is provided with rotor blades 14, which are of a curved surface type. A plurality of rotor blades 14 are evenly arranged on the rotating body 17, and the number of the rotor blades 14 arranged can be 3-9. When the stator core 1 is electrified, the stator core 1 generates a magnetic field, which acts on the rotor core 15, thereby generating a rotating torque to drive the rotor core 15 to rotate, and at the same time, drive the rotating body 17 to rotate, so that the rotor blades 14 on the rotating body 17 rotate.

[0033] The number of the rotor blades 14 arranged in the embodiment is 5, and the odd number of blades has stronger stability and avoids resonance. The odd number of blades can be arranged in an asymmetric shape, while the even number of blades will form a symmetric arrangement. When rotating at high speed, uneven material quality and installation errors can easily cause the even number of blades to vibrate, and the vibration of one blade will be transmitted to the opposite blade, causing resonance, which can cause the blades to be unable to withstand the fatigue caused by resonance for a long time, and eventually may break. The odd number of blades can effectively reduce noise and vibration, and avoid such problems. The asymmetric structure of the odd number of blades makes the center of gravity of the whole system more evenly distributed, so that it can better maintain balance during rotation, reduce the shaking caused by the deviation of the center of gravity, and improve the stability of operation. The odd number of blades has relatively small disturbance to the surrounding water flow when rotating, so that the water flow flows more smoothly, thereby reducing the noise caused by water flow vortex and turbulence.

[0034] The rotating assembly is provided with a bearing 11, which is an angular contact ball bearing and can simultaneously bear radial load and axial load, for supporting the rotor, reducing the friction coefficient during movement of the rotor, and ensuring the rotation accuracy of the rotor. The bearing 11 is arranged in loose fit, and the bottom side of the bearing 11 is provided with a sealing structure. The sealing structure comprises a mirror ring base 8, and a mirror ring base sealing ring 10 is arranged between the mirror ring base 8 and a rotating body 17. The mirror ring base sealing ring 10 can isolate the liquid flow between the inside and outside of the motor. A bearing inner ring gasket 13 is arranged between the inner side of the bearing 11 and the mirror ring base 8. The bearing inner ring gasket 13 is a PET gasket, which can avoid hard contact between the bearing 11 and the mirror ring base 8, so as to prevent damage to both. The side of the mirror ring base 8 is provided with a mirror ring 7, and a mirror ring base outer sealing ring 9 is arranged between the mirror ring 7 and the mirror ring base 8. A water seal 5 is arranged above the mirror ring 7, which can isolate the liquid flow between the inside and outside of the motor and play a waterproof role. The contact surface of the mirror ring 7 has low surface roughness and is in close contact with the rotating body of the water seal 5, so as to reduce the dynamic friction resistance between the mirror ring 7 and the rotating body of the water seal 5 during the operation of the motor. A mirror ring fixing ring 6 is arranged on the side of the mirror ring 7, which fixes the mirror ring 7 on the mirror ring base 8. The mirror ring 7, the mirror ring base 8 and the mirror ring fixing ring 6 are connected by screws.

[0035] The whole machine is provided with a fairing 2, which is arranged in a circular arc shape, so as to better guide the water flow into the paddle flow channel. Meanwhile, the fairing 2 is provided with a drain port 12, so as to avoid the accumulation of small particle foreign matters between the fairing 2 and the motor and facilitate cleaning.

[0036] The whole cavity of the device is sealed. The sealing structures on both sides of the inside of the driver form a sealed cavity with the stator core 1 and the rotating body 17. Injecting lubricating oil into the sealed cavity can greatly reduce the friction between the various moving parts in the cavity. On the other hand, the liquid itself has the characteristic of being incompressible. The cavity filled with lubricating oil can support the cavity from being deformed by water pressure in deep water. The void filling ratio of the lubricating oil of the device is 80%-100%.

[0037] A protruding block is arranged on the shell of the stator housing 3, and a top wire outlet is arranged on the protruding block. The copper winding group wound in the stator core 1 is coated by gluing after winding in the stator core 1. The electric wire extending from the copper winding group is stretched out of the top wire outlet. Because the surface of the copper winding group in the stator core 1 is provided with an insulating paint, the copper winding group will not electrify when electrified, so the stator core 1 and the internal lubricating oil will not react.

[0038] There are two ways to inject oil in the whole machine, the first way is to immerse the whole machine in lubricating oil, and connect the gas pipe to the top outlet to extract the gas in the wall, so that the lubricating oil can fill the cavity without bubbles, and then seal the two end flow guide cover 2 in the lubricating liquid; At the same time, the second way can use a hose needle, first preinstall the flow guide cover, and then seal the upper end face flow guide cover after the lubricating oil is filled and continues to overflow, which can also ensure that the lubricating oil fills the cavity without bubbles. The sealing structure of the whole machine can avoid the entry of sundries in the environment into the motor to increase the internal friction loss and corrode the internal structural parts of the motor.

[0039] Working principle: the rotating body 17, the mirror ring base 8 and the bearing 11 are connected and fixed, and the mirror ring base 8 and the rotating body 17 are rotated by rotating the bearing 11, and the water seal 5 is arranged on the side of the bearing 11 and the mirror ring base 8, the mirror ring 7 and the mirror ring fixed ring 6 are fixed and sealed, which can realize the sealing of the whole cavity, so that the lubricating liquid in the cavity does not come into contact with the external liquid, and the mirror ring base outer sealing ring 9 and the mirror ring base inner sealing ring 10 are arranged on the mirror ring base 8, and the flow guide cover sealing ring 4 is arranged on the flow guide cover 2 and the stator housing 3 to isolate the liquid flow between the inside and outside of the motor. When the lubricating oil fills the inner cavity of the motor, the wires on the stator core 1 are led out from the top outlet, and the top outlet is sealed. When in use, the power is turned on, the electric signal enters the stator core 1 through the wire, the copper winding group in the stator core 1 is electrified to generate a magnetic field, and the magnetic field generated by the electrification of the stator core 1 acts on the rotor core 15 to make the rotor core 15 rotate. Because there is a gap between the stator core 1 and the rotor core 15, the rotation of the rotor core 15 does not affect the stator core 1; the rotor core 15 is fixedly connected with the rotating body 17 to realize the rotation of the rotating body 17, and the rotation of the rotating body 17 realizes the rotation of the rotor blade 14 on the rotating body 17, which drives the water flow. The setting of the mirror ring 7 realizes the rotation of the mirror ring base 8 and the rotating body 17 at the same time, reduces the sliding friction coefficient between the water seals 5, and guarantees the sealing of the internal cavity. The flow guide cover 2 can guide the fluid to flow along a more reasonable streamline path, reduce the separation and vortex formation of the fluid on the surface of the object, and effectively reduce the water flow resistance. The flow guide cover 2 can converge the fluid, increase the flow rate and flow of the water flow in the inner ring flow channel of the motor. There is no shaft in the middle of the flow channel, and there is no dead angle, which can avoid the entanglement of foreign matters on the blades and the generation of cavitation, and greatly reduce the noise of the motor when running in water. When there are large soft foreign matters embedded on the blades, the motor can be reversed, and the foreign matters can be easily removed in water with the help of water flow.

[0040] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, whatever the point of view. The scope of the present application is defined by the appended claims, and not by the above description, which is therefore intended to be merely illustrative and not restrictive. Any reference signs in the claims should not be considered as limiting the claims involved.

[0041] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment exhibits every characteristic or implements every combination of features described in the specification. In other words, the present specification contemplates and provides for embodiments in which one or more features, embodiments, examples, etc., described can be excluded from the application. In addition, it should be understood that, although the present specification has been described in terms of embodiments, the specification itself is not merely describing each separate embodiment but rather is describing a generic solution applicable to any embodiment or a generic solution applicable to any other related solutions. Thus, the scope of the present application should be determined not by reference to the above description, but rather by reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The claims should not be considered as limited to the embodiments described herein, but rather are intended to cover all embodiments falling within the scope of the claims, along with their equivalents.

Claims

1. A submersible vehicle wheel rim drive, the drive comprising a housing structure, characterised in that: The shell structure is a ring-shaped stator shell (3), a rotating ring-shaped rotating body (17) is arranged in the stator shell (3), a stator core (1) is arranged on the stator shell (3), a rotor core (15) is arranged on the rotating body (17), a plurality of rotor blades (14) are arranged on the inner ring surface of the rotating body (17), there is a gap between the stator core (1) and the rotor core (15), and the rotating body (17) and the stator shell (3) are connected through bearings (11).

2. A vehicle track drive as claimed in claim 1, wherein: The rotor core (15) is provided with a rotor magnetic steel (16).

3. A vehicle track drive as claimed in claim 1, wherein: The rotor blades (14) are of a curved surface type, and the number of the rotor blades (14) is 3-9.

4. A vehicle track drive as defined in claim 1, wherein: Sealing structures are arranged on both sides of the rotor assembly.

5. A vehicle track drive as claimed in claim 4, wherein: The sealing structures on both sides of the driver form a sealed cavity with the stator core (1) and the rotating body (17), lubricating oil is injected into the sealed cavity to reduce the friction between the components in the cavity.

6. A vehicle track drive as claimed in claim 5, wherein: The gap filling ratio of the lubricating oil is 80%-100%.

7. A vehicle track drive as defined in claim 1 wherein: The surface of the copper winding group in the stator core (1) is provided with an insulating paint skin, and the copper winding group is wrapped in the stator core (1) and is coated in the stator core (1) after being glued.

8. A vehicle track drive as claimed in claim 7, wherein: A protruding block is arranged on the shell of the stator shell (3), a top wire outlet is arranged on the protruding block, and the electric wire extended from the copper winding group is stretched out from the top wire outlet.

9. The vehicle track drive of claim 1, wherein: Flow deflectors (2) are arranged on both sides of the driver, and the flow deflectors (2) are arranged in a circular arc shape.

10. A vehicle track drive as claimed in claim 9, wherein: A drain port (12) is arranged on the flow deflector (2).

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