Combined wind power variable pitch conductive slip ring

Abstract

The utility model discloses a combined wind power variable pitch electrically conductive slip ring, including the shell stator, the inside rotation of shell stator is connected with the electrically conductive ring, the left -hand end fixed mounting of electrically conductive ring has the wiring, the inner chamber left part and right part of shell stator all fixed mounting has a sealing cover, the electrically conductive ring movable wear and tear in two sealing covers, the outer surface left and right sides of electrically conductive ring all fixed mounting has a first gear, the first gear has the second gear, the left end fixed wear and tear connection of second gear has the pivot, the inside heat of slip ring is reduced when using, and its service life problem is solved. Its technical scheme main point is: a combined wind power variable pitch electrically conductive slip ring. The utility model can rapidly take away the heat inside the slip ring through the forced ventilation mode of the fan, effectively reduces the working temperature of the electrically conductive ring and other heating components, slows down the aging speed of the material, and prolongs the service life of the slip ring.

Description

Technical Field

[0001] This utility model relates to a conductive slip ring, and more specifically, to a combined wind turbine pitch conductive slip ring. Background Technology

[0002] A slip ring, sometimes called a collector ring, rotary electrical interface, or bus ring, is an electromechanical device capable of transmitting power and electrical signals while rotating freely 360 degrees. It achieves the transfer of current or signals from the stationary part to the rotating part through a set of fixed brushes in contact with the rotating slip ring, thus avoiding the tangling problems caused by direct cable connections in traditional systems.

[0003] The combined wind turbine pitch control slip ring combines the basic functions of a traditional slip ring with the capabilities to meet various transmission requirements (such as power, control signals, and data communication), adapting to the complex and diverse demands of wind power control systems. It not only supports high-current power transmission but also ensures stable transmission of low-voltage signals and data, meeting the high efficiency and reliability requirements of modern wind turbines.

[0004] In existing combined wind turbine pitch conductive slip rings, the brush and conductive ring need to maintain continuous contact during use to facilitate the transmission of electricity or signals. During rotation, the relative motion between the two generates friction, which is then converted into heat energy. Materials (including brushes, conductive rings and their seals) that are exposed to high temperatures for a long time will age faster, affecting the overall service life of the slip ring.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a combined wind turbine pitch conductive slip ring. By using a fan for forced ventilation, the heat inside the slip ring can be quickly removed, effectively reducing the operating temperature of the conductive ring and other heat-generating components, slowing down the aging rate of the materials, and extending the service life of the slip ring.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a combined wind turbine pitch conductive slip ring, including a housing stator, a conductive ring rotatably connected inside the housing stator, a wiring device fixedly installed at the left end of the conductive ring, a sealing cover fixedly installed on the left and right sides of the inner cavity of the housing stator, the conductive ring movably inserted through the two sealing covers, a first gear fixedly installed on the left and right sides of the outer surface of the conductive ring, the first gear meshing with a second gear, a rotating shaft fixedly inserted through the left end of the second gear, a support plate fixedly connected to the outer surface of the rotating shaft through a bearing, the support plate fixed to the inner wall of the housing stator, a fan fixedly installed on the side of the outer surface of the rotating shaft near the sealing cover, and an opening provided on one side of the sealing cover.

[0008] The present invention is further configured such that a filter convex mesh is fixedly installed inside the opening.

[0009] The present invention is further configured such that: the fan is located inside the opening, and the axis of the rotating shaft coincides with the axis of the opening.

[0010] The present invention is further configured such that a flange is fixedly installed on the outer surface of the outer stator.

[0011] In summary, this utility model has the following beneficial effects:

[0012] The slip ring rotates together with the pitch system of the wind turbine. During this process, the first gear mounted on the outer surface of the slip ring rotates along with the slip ring. The first gear meshes with the second gear, causing the second gear to rotate as well. The second gear is connected to the fan via a shaft. Therefore, when the second gear rotates, it drives the fan to operate. Once the fan starts running, the forced ventilation quickly removes the heat inside the slip ring, effectively reducing the operating temperature of the slip ring and other heat-generating components, slowing down the aging rate of the materials, and extending the service life of the slip ring. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the conductive slip ring of this utility model;

[0014] Figure 2 This is a rear view structural schematic diagram of the conductive slip ring of this utility model;

[0015] Figure 3 This is a schematic diagram of the front section structure of the conductive slip ring of this utility model.

[0016] In the diagram: 1. Outer shell stator; 2. Conductive ring; 3. Wiring; 4. Sealing cover; 5. First gear; 6. Second gear; 7. Shaft; 8. Support plate; 9. Fan; 10. Port; 11. Filter screen; 12. Flange. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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.

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] A combined wind turbine pitch conductive slip ring, such as Figures 1 to 3 As shown, the device includes a stator 1 with an outer casing. A conductive ring 2 is rotatably connected inside the stator 1. A wiring 3 is fixedly installed on the left end of the conductive ring 2. A sealing cover 4 is fixedly installed on both the left and right sides of the inner cavity of the stator 1. The conductive ring 2 is movably inserted through the two sealing covers 4. A first gear 5 is fixedly installed on both the left and right sides of the outer surface of the conductive ring 2. The first gear 5 meshes with a second gear 6. A rotating shaft 7 is fixedly inserted through the left end of the second gear 6. A support plate 8 is fixedly connected to the outer surface of the rotating shaft 7 through a bearing. The support plate 8 is fixed to the inner wall of the stator 1. A fan 9 is fixedly installed on the side of the outer surface of the rotating shaft 7 near the sealing cover 4. An opening 10 is provided on one side of the sealing cover 4.

[0022] like Figure 1As shown, a filter mesh 11 is fixedly installed inside the opening 10. The filter mesh 11 is made of metal materials such as stainless steel and aluminum alloy. These materials are not only corrosion-resistant and high-temperature resistant, but also easy to process into a mesh structure to meet filtration requirements. The filtration principle of the filter mesh 11 is mainly based on its mesh structure. When air or other fluids pass through the filter mesh 11, the mesh structure blocks dust, impurities, and other particulate matter in the air, allowing only clean air or fluid to pass through. The surface of the filter mesh 11 has a circular outward convex design, which can significantly increase the surface area of ​​the filter mesh 11. This means that more filtration channels can be provided in the same space, allowing air or fluid to come into more full contact with the filter mesh 11, thereby improving filtration efficiency. The circular outward convex design helps optimize the flow path of air or fluid and reduce its resistance when passing through the filter mesh 11.

[0023] Fan 9 is located inside port 10, and the axis of shaft 7 and port 10 coincide, ensuring that the airflow generated by fan 9 can pass smoothly through port 10.

[0024] A flange 12 is fixedly installed on the outer surface of the stator 1. The flange 12 is fixed to the outer surface of the stator 1. Its main function is to facilitate connection with other equipment or structural components. This not only simplifies the installation process, but also ensures the stability and reliability of the slip ring in the whole system.

[0025] Working principle: When the conductive slip ring is working, the conductive ring 2 rotates together with the pitch system of the wind turbine. During this process, the first gear 5 installed on the outer surface of the conductive ring 2 rotates with the rotation of the conductive ring 2. The first gear 5 meshes with the second gear 6, causing the second gear 6 to rotate as well. The second gear 6 is connected to the fan 9 through the shaft 7. Therefore, when the second gear 6 rotates, it drives the fan 9 to run. After the fan 9 starts running, it will draw cold air from the external environment or air that is colder than the inside of the equipment into the slip ring through the opening 10 on the sealing cover 4. In order to prevent dust and other particles from entering the slip ring and causing pollution or wear, a filter screen 11 is fixedly installed in the opening 10 to purify the incoming air. The filtered cold air is blown directly onto the conductive ring 2 and other heat-generating components (such as brushes), effectively removing the heat generated by the current and friction of these components, thereby reducing the working temperature inside the entire slip ring. The heated air is discharged outside the slip ring through the opening 10 on the other side, forming an effective air circulation system that continuously cools the slip ring.

[0026] In summary, by using fan 9 for forced ventilation, the heat inside the slip ring can be quickly removed, effectively reducing the operating temperature of conductive ring 2 and other heat-generating components, slowing down the aging rate of materials, and extending the service life of the slip ring.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A combined wind turbine pitch conductive slip ring, comprising a housing stator (1), wherein a conductive ring (2) is rotatably connected inside the housing stator (1), a wiring terminal (3) is fixedly installed at the left end of the conductive ring (2), and a sealing cover (4) is fixedly installed on both the left and right sides of the inner cavity of the housing stator (1), wherein the conductive ring (2) is movably inserted on the two sealing covers (4), characterized in that: A first gear (5) is fixedly installed on both the left and right sides of the outer surface of the conductive ring (2). The first gear (5) meshes with a second gear (6). A rotating shaft (7) is fixedly inserted and connected to the left end of the second gear (6). A support plate (8) is fixedly connected to the outer surface of the rotating shaft (7) through a bearing. The support plate (8) is fixed on the inner wall of the outer stator (1). A fan (9) is fixedly installed on the outer surface of the rotating shaft (7) near the sealing cover (4). An opening (10) is provided on one side of the sealing cover (4).

2. The combined wind turbine pitch conductive slip ring according to claim 1, characterized in that: A filter screen (11) is fixedly installed inside the opening (10).

3. The combined wind turbine pitch conductive slip ring according to claim 1, characterized in that: The fan (9) is located inside the opening (10), and the axis of the rotating shaft (7) coincides with the axis of the opening (10).

4. The combined wind turbine pitch conductive slip ring according to claim 1, characterized in that: A flange (12) is fixedly installed on the outer surface of the outer stator (1).

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