Seal-less open water motor

Abstract

The present invention provides a seal-less open water motor, which includes a motor end cover, a motor bearing, a motor flange, a motor rotor magnet core, a motor rotor silicon steel core, a motor stator winding support ring and a motor stator silicon steel core; the motor rotor silicon steel core has a rotating shaft, and a plurality of motor rotor magnet cores are evenly pasted on the surface of the motor rotor silicon steel core through an adhesive to form a motor rotor; the motor stator silicon steel core has an assembly hole penetrating through both ends, and a waterproof treatment wire is wound around the inner wall of the assembly hole to form a motor stator; during assembly, the motor rotor is assembled onto the motor stator, and the motor flange and the motor end cover are sequentially sleeved on both ends of the rotating shaft. Among them, the motor flange is fixed to the motor stator silicon steel core, the motor end cover is fixed to the motor flange, and the motor end cover and the rotating shaft are connected into a whole through the motor bearing, thus completing the assembly of the motor. The structure is simple, the assembly is convenient, there is no need for a dynamic seal structure, and thus the overall service life of the motor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and more specifically, to an unsealed open-water motor. Background Art

[0002] According to the different working forms and conditions of seawater motors, common seawater motors are generally divided into two types: dry and wet. Dry motors are divided into two types: dry inside the motor and filled with oil inside the motor, and wet motors are filled with clean water inside. Whether it is a dry or wet structure motor, the whole motor needs to be sealed in a sealed cabin. In the prior art, dynamic seals or ordinary seals are generally used to connect the power shaft to the outside, and there are still the following defects and deficiencies:

[0003] 1. The overall use situation and service life of ordinary sealed motors are greatly affected by dynamic seals. Whether it is a dry or wet underwater motor, the whole motor needs to be dynamically sealed. Due to the relative movement of the seals, friction will occur, so there will inevitably be wear of the seals. When the seals are severely worn, leakage will occur. Dynamic seals have high requirements for the working conditions of the rotating shaft. When the rotating shaft is unevenly stressed or has a large offset in the axial or radial direction, it may lead to seal failure. Therefore, the dynamic seal effect often affects the overall use situation and service life of the motor.

[0004] 2. Dynamic seals will reduce the motor efficiency and the obtained power. During the operation of the motor, relative movement will occur between the motor shaft and the seals, generating a large frictional resistance. Therefore, dynamic seals will reduce the obtained power of the motor, thereby reducing the motor efficiency.

[0005] 3. During the manufacturing process of ordinary sealed motors, it is necessary to fill oil or water inside. The manufacturing process is relatively cumbersome, and problems such as oil leakage and water leakage are likely to occur during the manufacturing and use processes, affecting the use of the motor.

[0006] 4. Ordinary sealed motors such as dry underwater motors are not filled with oil or water inside. Therefore, when they dive to a certain depth, problems will occur due to the imbalance of internal and external pressures. To solve the depth problem, an internal and external pressure balance device needs to be added, increasing the complexity of the equipment and the probability of equipment failure. Summary of the Invention

[0007] The purpose of the present invention is to provide an unsealed open-water motor, which adopts an assembly method without dynamic seals. Therefore, its service life is not affected by the dynamic seal effect, and it is not sensitive to the offset of the rotating shaft. At the same time, there is no relative movement between the rotating shaft and the seals. Therefore, the motor efficiency and the obtained power will not be reduced. At the same time, there is no need to fill water or oil inside the motor. Therefore, the manufacturing and assembly of the motor are relatively simple, and there will be no problems such as oil leakage and water leakage that affect the service life of the motor. There is no problem of internal and external pressure balance. Therefore, the overall equipment of the motor is relatively simple and the failure rate is small.

[0008] Embodiments of the present invention are implemented as follows:

[0009] An embodiment of the present application provides a seal-less open-water motor, including a motor end cover, a motor bearing, a motor flange, a motor rotor magnet core, a motor rotor silicon steel core, a motor stator winding support ring, and a motor stator silicon steel core;

[0010] The motor rotor silicon steel core has a rotating shaft, and a plurality of motor rotor magnet cores are evenly pasted on the surface of the motor rotor silicon steel core through an adhesive to form a motor rotor;

[0011] The motor stator silicon steel core has an assembly hole that penetrates through both ends, and the inner wall of the assembly hole has a plurality of evenly distributed winding components. The adjacent two winding components are wound through a waterproof treatment line to form a motor stator. A card slot matching the number of winding components is provided on the outer peripheral side of the motor stator winding support ring, and the card slot is clamped with the winding component;

[0012] The motor rotor is assembled in the motor stator winding support ring. The two ends of the rotating shaft are sequentially sleeved with a motor flange and a motor end cover. The motor flange is connected to the motor stator silicon steel core, the motor end cover is connected to the motor silicon steel core, and the rotating shaft is connected to the motor end cover through a motor bearing.

[0013] In some embodiments of the present invention, the inner peripheral side of the above-mentioned motor flange has a clamping member that matches the number of card slots on the motor stator winding support ring, and the clamping member is clamped with the card slot one by one.

[0014] In some embodiments of the present invention, the above-mentioned motor end cover and motor flange are both made of aluminum alloy material, and the surfaces of the motor end cover and motor flange are both subjected to hard anodization.

[0015] In some embodiments of the present invention, a plurality of mutually matching threaded holes are provided on the above-mentioned motor end cover and motor flange, and the mutually matching threaded holes are connected by 316 stainless steel screws.

[0016] In some embodiments of the present invention, the above-mentioned motor rotor magnet core is made of high-magnetic neodymium iron boron material, and a multiple-layer electroplated layer for anti-corrosion and anti-oxidation is provided on the surface of the motor rotor magnet core.

[0017] In some embodiments of the present invention, the above-mentioned motor rotor magnet core is made by laminating multiple layers of low-iron-loss silicon steel sheets. The surface of each layer of low-iron-loss silicon steel sheet is nickel-plated and subjected to anti-corrosion and anti-oxidation treatment. The multiple layers of low-iron-loss silicon steel sheets after nickel plating and anti-corrosion and anti-oxidation treatment are tightened by screws to form the motor rotor magnet core;

[0018] The rotating shaft is provided with an assembly seat. Multiple layers of low iron loss silicon steel sheets are sleeved on the rotating shaft and tightened with the assembly seat by screws, and the low iron loss silicon steel sheets are adhered to the rotating shaft by a special anti-corrosion adhesive.

[0019] In some embodiments of the present invention, the above-mentioned motor stator silicon steel core is also made by laminating multiple layers of low iron loss silicon steel sheets, and the surfaces of each layer of low iron loss silicon steel sheets are nickel-plated and subjected to anti-corrosion and anti-oxidation treatment.

[0020] In some embodiments of the present invention, the above-mentioned waterproof treatment line uses fixing glue to fix the windings after winding between adjacent two winding components.

[0021] In some embodiments of the present invention, the core of the above-mentioned waterproof treatment line is copper, and the surface of the core is wrapped with an anti-corrosion insulating layer, and the anti-corrosion insulating layer is an insulating ester epidermis.

[0022] In some embodiments of the present invention, the above-mentioned motor stator silicon steel core and the motor flange both have a plurality of through holes that cooperate with each other, and the cooperating through holes are threadedly connected by a connecting rod.

[0023] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0024] 1. The whole motor has no dynamic seal, so its service life is not affected by the dynamic seal effect, and it is not sensitive to the offset of the rotating shaft.

[0025] 2. The motor has no dynamic seal, and there will be no friction movement between the rotating shaft and the seal, so the motor efficiency and the obtained power are high.

[0026] 3. The inside of the motor does not need to be filled with water or oil, so the manufacturing and assembly of the motor are relatively simple, and at the same time, there will be no situations such as oil leakage or water leakage that affect the service life of the motor.

[0027] 4. Because there is no dynamic seal structure and no problem of internal and external pressure balance, the overall equipment of the motor is relatively simple and the failure rate is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2Exploded view of the present invention;

[0031] Figure 3 Schematic assembly diagram among the motor flange, the support ring of the motor stator winding and the motor stator silicon steel in the present invention.

[0032] Icons: 1. including motor end cover, 2. motor bearing, 3. motor flange, 4. motor rotor magnet core, 5. motor rotor silicon steel core, 6. support ring of motor stator winding, 7. motor stator silicon steel core, 71. winding assembly, 61. card slot, 51. rotating shaft, 31. clamping part. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected" and "coupled" are used, they should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] Embodiment

[0037] Please refer to Figures 1-3An unsealed open-water motor shown in the figure includes a motor end cover 1, a motor bearing 2, a motor flange 3, a motor rotor magnet core 4, a motor rotor silicon steel core 5, a motor stator winding support ring 6, and a motor stator silicon steel core 7. The motor structure disclosed in the present invention adopts an assembly method without a dynamic seal as a whole. Therefore, its service life is not affected by the dynamic seal effect, and it is not sensitive to the offset of the rotating shaft 51. At the same time, there is no relative movement between the rotating shaft 51 and the seal. Therefore, the motor efficiency and the obtained power will not decrease. At the same time, there is no need to fill water or oil inside the motor. Therefore, the manufacture and assembly of the motor are relatively simple, and there will be no situations such as oil leakage or water leakage that affect the service life of the motor. There is no problem of internal and external pressure balance. Therefore, the overall equipment of the motor is relatively simple and the failure rate is small;

[0038] Specifically, the motor rotor silicon steel core 5 has a rotating shaft 51, and a plurality of motor rotor magnet cores 4 are evenly pasted on the surface of the motor rotor silicon steel core 5 through an adhesive to form a motor rotor;

[0039] The motor stator silicon steel core 7 has an assembly hole that penetrates through both ends. The inner wall of the assembly hole has a plurality of evenly distributed winding components 71. The adjacent two winding components 71 are wound through a waterproof treatment wire to form a motor stator. A clamping groove 61 matching the number of winding components 71 is opened on the outer peripheral side of the motor stator winding support ring 6, and the clamping groove 61 is clamped with the winding component 71;

[0040] The motor rotor is assembled in the motor stator winding support ring 6. The two ends of the rotating shaft 51 are sequentially sleeved with a motor flange 3 and a motor end cover 1. The motor flange 3 is connected to the motor stator silicon steel core 7, the motor end cover 1 is connected to the motor silicon steel core 7, and the rotating shaft 51 is connected to the motor end cover 1 through the motor bearing 2;

[0041] During specific implementation, a plurality of motor rotor magnet cores 4 are evenly pasted on the surface of the motor rotor silicon steel core 5 through an adhesive to form a motor rotor; at the same time, a waterproof treatment wire is wound around the winding component 71 of the motor stator silicon steel core 7 for winding to form a motor stator; during assembly, the motor rotor is assembled onto the motor stator, and the motor flange 3 and the motor end cover 1 are sequentially sleeved on the two ends of the rotating shaft 51. Among them, the motor flange 3 is fixed to the motor stator silicon steel core 7 by bolts, the motor end cover 1 is fixed to the motor flange 3 by bolts, and the motor end cover 1 and the rotating shaft 51 are connected into a whole through the motor bearing 2 to complete the assembly of the motor. It should be noted that it is necessary to ensure that there is no contact between the motor rotor and the motor stator after the motor is assembled.

[0042] As a preferred solution of the above embodiment, the inner peripheral side of the motor flange 3 has a clamping member 31 that matches the number of clamping grooves 61 on the motor stator winding support ring 6, and the clamping member 31 is clamped with the clamping groove 61 one by one.

[0043] As a preferred solution of the above embodiments, both the motor end cover 1 and the motor flange 3 are made of aluminum alloy material, and the surfaces of the motor end cover 1 and the motor flange 3 are both subjected to hard anodization, so that the motor end cover 1 and the motor flange 3 can resist the corrosion of seawater, thereby improving the service life.

[0044] As a preferred solution of the above embodiments, a plurality of mutually cooperating threaded holes are provided on both the motor end cover 1 and the motor flange 3, and the mutually cooperating threaded holes are connected by 316 stainless steel screws. This assembly structure is convenient for assembly and disassembly. At the same time, the 316 stainless steel screws are corrosion-resistant and high-pressure-resistant, and can be used in the deep sea.

[0045] As a preferred solution of the above embodiments, the motor rotor magnet core 4 is made of high-magnetic neodymium iron boron material to provide magnetic force for the motor, and a plurality of electroplated layers for anti-corrosion and anti-oxidation are provided on the surface of the motor rotor magnet core 4 to ensure that the surface of the motor rotor magnet core 4 can withstand the corrosion of seawater. Among them, the electroplated layer for anti-corrosion and anti-oxidation includes a nickel plating layer and a ceramic plating layer, and they are sequentially provided on the surface of the motor rotor magnet core 4.

[0046] As a preferred solution of the above embodiments, the motor rotor magnet core 4 is made by laminating multiple layers of low iron loss silicon steel sheets. The surface of each layer of low iron loss silicon steel sheet is subjected to nickel plating and anti-corrosion and anti-oxidation treatment. The multiple layers of low iron loss silicon steel sheets after nickel plating and anti-corrosion and anti-oxidation treatment are tightened by screws to form the motor rotor magnet core 4, so that the motor rotor magnet core 4 can resist the corrosion of seawater, thereby improving the service life; among them, the anti-corrosion and anti-oxidation treatment uses ceramic plating.

[0047] The rotating shaft 51 is provided with an assembly seat 52. Multiple layers of low iron loss silicon steel sheets are sleeved on the rotating shaft 51 and tightened with the assembly seat 52 by screws, so that the low iron loss silicon steel sheets are tightly assembled with the assembly seat 52 of the rotating shaft 51, so that the low iron loss silicon steel sheets can rotate together with the rotating shaft 51. Among them, the low iron loss silicon steel sheets and the rotating shaft 51 are pasted together by a special anti-corrosion adhesive to ensure that the low iron loss silicon steel sheets do not fall off during rotation. Specifically, the special anti-corrosion adhesive is casting glue or structural glue.

[0048] As a preferred solution of the above embodiments, the motor stator silicon steel core 7 is also made by laminating multiple layers of low iron loss silicon steel sheets. The surface of each layer of low iron loss silicon steel sheet is subjected to nickel plating and anti-corrosion and anti-oxidation treatment, so that the motor stator silicon steel core 7 can also resist the corrosion of seawater, thereby improving the service life. Among them, the anti-corrosion and anti-oxidation treatment also uses ceramic plating.

[0049] As a preferred solution of the above embodiment, after winding between two adjacent winding components 71 by the waterproof treatment wire, a fixing glue is used to fix the winding, and after the winding is completed, a fixing glue is used to fix the winding to ensure the integrity of the winding. The fixing glue used is also foundry glue or structural glue.

[0050] As a preferred solution of the above embodiment, the core of the waterproof treatment wire is copper, and the surface of the core is wrapped with an anti-corrosion insulating layer. The anti-corrosion insulating layer is an insulating ester epidermis with a thickness of 0.2 mm, so that the wire used for winding obtains waterproof ability.

[0051] As a preferred solution of the above embodiment, both the motor stator silicon steel core 7 and the motor flange 3 have a plurality of through holes that cooperate with each other. The through holes that cooperate with each other are threadedly connected by a connecting rod. The motor flange 3 can limit and correct the installation positions of the motor stator and the motor rotor, ensure the concentricity of the motor stator and the motor rotor, so that there is a sufficient air gap between the motor stator and the motor rotor, and the motor flange 3 can also prevent sand and gravel from entering the part between the motor stator and the motor rotor, ensuring the normal operation of the motor.

[0052] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0053] Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the individual claims involved.

Claims

1. An unsealed open water motor, characterized in that, It includes a motor end cover, a motor bearing, a motor flange, a motor rotor magnet core, a motor rotor silicon steel core, a motor stator winding support ring, and a motor stator silicon steel core; The motor rotor silicon steel core has a rotating shaft, and multiple motor rotor magnet cores are evenly pasted on the surface of the motor rotor silicon steel core through an adhesive to form a motor rotor; The motor stator silicon steel core has an assembly hole that penetrates through both ends. The inner wall of the assembly hole has multiple evenly distributed winding components. The adjacent two winding components are wound through a waterproof treatment wire to form a motor stator. A card slot matching the number of the winding components is provided on the outer peripheral side of the motor stator winding support ring, and the card slot is clamped with the winding components; The motor rotor is assembled in the motor stator winding support ring. The two ends of the rotating shaft are sequentially sleeved with the motor flange and the motor end cover. The motor flange is connected to the motor stator silicon steel core, the motor end cover is connected to the motor silicon steel core, and the rotating shaft is connected to the motor end cover through the motor bearing; Both the motor end cover and the motor flange are made of aluminum alloy material, and the surfaces of the motor end cover and the motor flange are both subjected to hard anodization; The motor rotor magnet core is made of high-magnetic neodymium iron boron material, and a multiple-layer electroplated layer for anti-corrosion and anti-oxidation is provided on the surface of the motor rotor magnet core; among them, the electroplated layer for anti-corrosion and anti-oxidation includes a nickel plating layer and a ceramic plating layer, and they are sequentially arranged on the surface of the motor rotor magnet core; The motor rotor magnet core is made by laminating multiple layers of low-iron-loss silicon steel sheets. The surface of each layer of low-iron-loss silicon steel sheet is nickel-plated and subjected to anti-corrosion and anti-oxidation treatment. The multiple layers of low-iron-loss silicon steel sheets after nickel plating and anti-corrosion and anti-oxidation treatment are tightened by screws to form the motor rotor magnet core; among them, the anti-corrosion and anti-oxidation treatment uses ceramic plating; The rotating shaft has an assembly seat. Multiple layers of low-iron-loss silicon steel sheets are sleeved on the rotating shaft and tightened with the assembly seat by screws, and the low-iron-loss silicon steel sheets are pasted together with the rotating shaft through a special anti-corrosion adhesive; the special anti-corrosion adhesive is casting glue or structural glue; The motor stator silicon steel core is also made by laminating multiple layers of low-iron-loss silicon steel sheets. The surface of each layer of low-iron-loss silicon steel sheet is subjected to anti-corrosion and anti-oxidation treatment; among them, the anti-corrosion and anti-oxidation treatment uses ceramic plating.

2. The unsealed open water motor according to claim 1, characterized in that, The inner peripheral side of the motor flange has a clamping member matching the number of the card slots on the motor stator winding support ring, and the clamping member is clamped with the card slots one by one.

3. The unsealed open water motor according to claim 1, characterized in that, Multiple mutually matching threaded holes are provided on both the motor end cover and the motor flange, and the mutually matching threaded holes are connected by 316 stainless steel screws.

4. The unsealed open water motor according to claim 1, characterized in that, After winding between the adjacent two winding components, the waterproof treatment wire uses a fixing glue to fix the winding.

5. The unsealed open water motor according to claim 1 or 4, characterized in that, The wire core of the waterproof treatment wire is copper, and the surface of the wire core is wrapped with an anti-corrosion insulating layer.

6. The unsealed open water motor according to claim 4, wherein Multiple mutually matching through holes are provided on both the motor stator silicon steel core and the motor flange, and the mutually matching through holes are threadedly connected by a connecting rod.

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