Sealing structure of submersible rim driver

Abstract

The utility model relates to the field of drivers, in particular to a sealing structure of a submersible rim driver. A sealing structure is arranged in the driver; the sealing structure comprises a mirror surface ring base, a mirror surface ring base sealing ring is arranged between the mirror surface ring base and a rotating body of the driver, a mirror surface ring is arranged on the side edge of the mirror surface ring base, a mirror surface ring base outer sealing ring is arranged between the mirror surface ring and the mirror surface ring base, and a water seal is arranged above the mirror surface ring. A mirror surface ring fixing ring is arranged on the side edge of the mirror surface ring, and the mirror surface ring, the mirror surface ring base and the mirror surface ring fixing ring are fixedly connected. The whole machine sealing structure can prevent impurities in the environment from entering the motor to cause internal friction loss and increase corrosion of internal structural parts of the motor.

Description

TECHNICAL FIELD

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

[0002] The submersible or speedboat propulsion device on the market at present adopts a motor to drive a screw bolt to rotate and drive the submersible or the propulsion device, because the shaft structure in the middle of the screw propeller will cause the middle shaft or the propeller blade to be wound by foreign matters in water, thereby affecting the motor, and the shaft structure in the middle part of the motor will also increase the energy loss and error in the energy transmission process. At the same time, in order to make the rotor rotate better in the stator shell and reduce friction, lubricating oil is injected into the shell to reduce the friction of the iron core in the rotating process.

[0003] Therefore, it is particularly important to design a submersible wheel rim driver sealing structure that can better seal the lubricating oil in the stator shell. SUMMARY

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

[0005] A submersible wheel rim driver sealing structure, a sealing structure is arranged in the driver; the sealing structure comprises a mirror ring base, a mirror ring base sealing ring is arranged between the mirror ring base and the rotating body of the driver, a mirror ring is arranged on the side edge of the mirror ring base, a mirror ring base outer sealing ring is arranged between the mirror ring and the mirror ring base, a water seal is arranged above the mirror ring, a mirror ring fixing ring is arranged on the side edge of the mirror ring, and the mirror ring, the mirror ring base and the mirror ring fixing ring are fixedly connected.

[0006] Optionally, a bearing is arranged in the driver, and a bearing inner ring gasket is arranged between the inner side surface of the bearing and the mirror ring base.

[0007] Optionally, the bearing inner ring gasket is a PET gasket.

[0008] Optionally, a flow guide cover and a stator shell are arranged in the driver, and a flow guide cover sealing ring is arranged on the flow guide cover and the stator shell.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] There is no shaft in the middle of the flow channel, there is no dead angle, foreign matters can be avoided from winding the propeller blade and cavitation, and the noise of the motor when running in water can be greatly reduced. When a large soft foreign matter is embedded on the propeller blade, the motor can be reversed, and the foreign matter can be easily removed with the help of water flow in water.

[0011] The lubricating oil liquid injected in the whole machine has the characteristic of being incompressible, and the cavity is filled with lubricating oil, which can support the cavity not to be deformed by water pressure in deep water.

[0012] The liquid has better heat conduction than gas, and the lubricating oil in the motor can conduct the heat generated in the motor to the outside faster.

[0013] 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. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be described below. Obviously, the technical scheme described in the description in combination with the drawings is only some embodiments of the present application, 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.

[0015] Figure 1 is the overall structure of the present application.

[0016] Figure 2 is the explosion schematic view of the present application.

[0017] Figure 3 is the sectional view of the present application.

[0018] Figure 4 is the enlarged sectional view of the present application.

[0019] Figure 5 is the water outlet schematic view of the present application.

[0020] Figure 6 is the connection schematic view of the bearing, the stator shell and the rotating body of the present application.

[0021] In the figure: 1, stator core; 2, flow guide cover; 3, stator shell; 4, flow guide cover sealing ring; 5, water seal; 6, mirror ring fixing ring; 7, mirror ring; 8, mirror ring base; 9, outer sealing ring of mirror ring base; 10, inner sealing ring of mirror ring base; 11, bearing; 12, water outlet; 13, bearing inner ring gasket; 14, rotor blade; 15, rotor core; 16, rotor magnet; 17, rotating body. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] 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.

[0025] An embodiment of this utility model provides a submersible rim drive.

[0026] 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.

[0027] 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 energized, 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.

[0028] 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 generated by water flow vortex and turbulence.

[0029] 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 a 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 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.

[0030] Both sides of the whole machine are 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, a drain port 12 is arranged on the fairing 2, so as to avoid accumulation of small particle foreign matters between the fairing 2 and the motor and facilitate cleaning.

[0031] 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%.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment according to the present specification only contains one independent technical solution. The specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole. The technical solutions in the various embodiments can also be combined appropriately to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A submersible vehicle wheel rim drive seal structure, characterized by: A sealing structure is arranged in the driver; the sealing structure comprises a mirror ring base (8), a mirror ring base sealing ring (10) is arranged between the mirror ring base (8) and a rotating body (17) of the driver, a mirror ring (7) is arranged on the side of the mirror ring base (8), 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), a mirror ring fixing ring (6) is arranged on the side of the mirror ring (7), and the mirror ring (7), the mirror ring base (8) and the mirror ring fixing ring (6) are fixedly connected.

2. A submersible vehicle wheel rim drive seal according to claim 1, characterised in that: A bearing (11) is arranged in the driver, and a bearing inner ring gasket (13) is arranged between the inner side surface of the bearing (11) and the mirror ring base (8).

3. A submersible vehicle wheel rim drive seal according to claim 2, characterised in that: The bearing inner ring gasket (13) is a PET gasket.

4. The submersible wheel rim drive seal according to claim 1, wherein: A flow guide cover (2) and a stator casing (3) are arranged in the driver, and a flow guide cover sealing ring (4) is arranged on the flow guide cover (2) and the stator casing (3).

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