Cooling device for gearbox of wind generating set

Abstract

The utility model discloses a wind generating set gear box cooling device, which relates to the technical field of wind power generation and comprises a gear box body, a cooling box body is mounted on the left side of the gear box body, a heat exchange chamber is formed in an inner cavity of the cooling box body, and a heat exchange assembly is arranged in the inner cavity of the cooling box body. The heat exchange assembly comprises a second liquid conveying box body for lubricating oil to circulate and a heat exchange pipe matched with the second liquid conveying box body and used for cooling liquid to circulate, and meanwhile, in order to further purify the lubricating oil during heat exchange, an impurity filtering assembly is further arranged in the middle of an inner cavity of the cooling box body and comprises a filtering arc plate; and a plurality of filtering arc plates are matched for use. According to the scheme, the oil-water heat exchange technology is adopted for efficient heat dissipation, meanwhile, a fine lubricating oil purification system is arranged, pollutants in lubricating oil are removed in real time, the service life of the gear box body is remarkably prolonged, the operation efficiency and reliability are improved, and the maintenance process is simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power generation, and in particular relates to a cooling device for a gear box of a wind power generator set. Background Art

[0002] As an important part of renewable energy, wind power generation has developed rapidly in recent years. The gearbox, one of the core components of a wind turbine, plays a key role in converting the low-speed rotation of the wind wheel into a high-speed rotation suitable for the generator. However, this conversion process is accompanied by huge energy loss, mainly manifested as friction heat inside the gearbox, which leads to temperature rise. Excessive operating temperature will accelerate the aging of internal parts of the gearbox, reduce the performance of the lubricant, and even cause failures, seriously affecting the reliability and economy of the wind turbine.

[0003] In order to control the temperature of the gearbox, a water cooling system is usually used, in which the lubricating oil transfers heat to the cooling water through an oil-water heat exchanger to maintain the gearbox operating within a suitable temperature range. However, after long-term operation, wear particles, dust and other foreign matter will inevitably be generated inside the gearbox. These impurities come from micro-wear on the gear surface, bearing wear, seal damage, etc. If left untreated, these impurities will accumulate in the lubricating oil, which will not only reduce the cooling effect of the lubricating oil, but also aggravate the wear of the internal parts of the gearbox, and even block the oil circuit and heat exchanger, seriously affecting the normal operation of the gearbox and the efficiency of the cooling system. Utility Model Content

[0004] The utility model aims to provide a wind turbine gearbox cooling device to solve the problem that impurities will accumulate in the lubricating oil as mentioned in the background technology, which will not only reduce the cooling effect of the lubricating oil, but also aggravate the wear of the internal parts of the gearbox, and even block the oil circuit and the heat exchanger, seriously affecting the normal operation of the gearbox and the efficiency of the cooling system.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a wind turbine gearbox cooling device, including a gearbox body, a cooling box body is installed on the left side of the gearbox body, and the inner cavity of the cooling box body forms a heat exchange chamber, the inner cavity of the cooling box body is provided with a heat exchange component, and the heat exchange component includes a liquid transfer box body 2 for the circulation of lubricating oil, and a heat exchange pipe used for the circulation of cooling liquid in cooperation with the liquid transfer box body 2. At the same time, during heat exchange, in order to further purify the lubricating oil, an impurity filtering component is also provided in the middle of the inner cavity of the cooling box body, and the impurity filtering component includes a filter arc plate, and a plurality of filter arc plates are used in combination, and also includes an impeller, wherein a rotating rod is provided in the output end direction of the impeller.

[0006] Preferably, the output end of the oil storage chamber of the gear box is connected to an air inlet pipe for sending out the oil, and the input end of the oil storage chamber of the gear box is connected to an air outlet pipe for sending in the oil after heat exchange.

[0007] Preferably, a liquid storage tank is installed at the bottom of one end of the cooling box body, and the liquid storage tank is used to store the cooling liquid. A liquid delivery pump body is installed at the end of the liquid storage tank.

[0008] Preferably, a liquid transfer box body 1 with the same structure is arranged above the liquid transfer box body 2, and the opposite sides of the liquid transfer box body 1 and the liquid transfer box body 2 are connected with a branch liquid guide pipe, and the opposite ends of the liquid transfer box body 1 and the liquid transfer box body 2 are connected with a ring pipe.

[0009] Preferably, a filter chamber is provided on the opposite side of the liquid transfer box body 1 and the liquid transfer box body 2, wherein the branch liquid guide pipe located on the liquid transfer box body 1 and the liquid transfer box body 2 is connected to the surface of the filter chamber on the side close to the filter chamber, and the upper and lower ends of the heat exchange tube are connected with conduits.

[0010] Preferably, the inner cavity of the filter chamber is provided with an inner sleeve, and the inner sleeves are used in cooperation with each other, and a close-fitting groove body is opened on the opposite side of the two inner sleeves, wherein the inner cavity sliding seal located in the close-fitting groove body is equipped with a sealing sleeve, and a sealing ring is connected to the surface of the sealing sleeve.

[0011] Preferably, the inner surface of the inner sleeve is connected to a mounting plate, one side of the end of the inner sleeve is connected to a gear condition, the outer ring of the end of the inner sleeve is connected to a sliding seat, and one end of the inner sleeve is connected to a partition.

[0012] Preferably, a liquid infusion pipeline is provided through the middle of the installation plate, a ring shift seat is provided through the surface of the liquid infusion pipeline and located outside the impeller, and a liquid delivery tube body is installed between the output end of the second liquid transfer box body and the end of the liquid infusion pipeline.

[0013] Preferably, both ends of the outer surface of the inner sleeve are slidably sleeved with fixed sleeves, the surface of the fixed sleeve is sleeved with a stabilizing seat, and in order to drive the rotating rod, the surface of the rotating rod is sleeved with a gear transmission element.

[0014] Preferably, a collecting bucket is installed at the bottom of the filter chamber on one side opposite to the two partitions, for collecting impurities filtered out of the lubricating oil.

[0015] The utility model provides a wind turbine gearbox cooling device with the following advantages:

[0016] The wind turbine gearbox cooling device sends the lubricating oil in the gearbox into the filter chamber through the first liquid transfer box, and filters it under the action of the filter arc plate. The filtered pure lubricating oil is passed into the branch liquid guide pipe on the second liquid transfer box, and the coolant flows into the branch liquid guide pipe. The two liquids are heat exchanged through the heat exchange pipe and the branch liquid guide pipe. The lubricating oil after heat exchange flows back to the liquid delivery pipeline through the liquid delivery pipe body, and the impeller is driven to rotate, and then the filter arc plate is driven to move. When moving, the relative rotating rod is engaged with the gear condition, and the corresponding filter arc plate can be driven to rotate by the rotating rod. The filter arc plate rotates and the impurities attached to the top are put into the collection bucket for collection, so that the lubricating oil in the gearbox is cooled and filtered in a reciprocating manner, and then the gears in the gearbox are lubricated and cooled by the lubricating oil.

[0017] Finally, this solution uses oil-water heat exchange technology for efficient heat dissipation, and at the same time has a built-in fine lubricating oil purification system to remove pollutants in the lubricating oil in real time, significantly extending the service life of the gearbox, improving operating efficiency and reliability, and simplifying the maintenance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 The second schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a three-dimensional exploded schematic diagram of the overall structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the cooling box structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the filter chamber structure of the utility model;

[0024] Figure 6 It is a three-dimensional exploded schematic diagram of the structure of the liquid transfer box body 1, the filter chamber, the collection barrel, the heat exchange tube, and the liquid transfer box body 2 of the utility model;

[0025] Figure 7 It is a three-dimensional exploded schematic diagram of the filter chamber and filter arc plate structure of the utility model;

[0026] Figure 8 It is a schematic diagram of splicing multiple filter arc plate structures of the utility model;

[0027] Fig. 9 This is a schematic diagram of the assembly of the filter arc plate and the rotating rod structure of the utility model;

[0028] Fig.10 It is a three-dimensional schematic diagram of the local structure of the inner sleeve of the utility model.

[0029] Description of the markings in the figure:

[0030] 100, gear box body; 101, air inlet pipe; 102, air outlet pipe;

[0031] 200, cooling box body; 210, liquid storage box; 220, liquid delivery pump body;

[0032] 300, liquid transfer box body 1; 310, liquid transfer box body 2; 311, liquid branching pipe; 312, ring pipe; 320, filter chamber; 330, heat exchange pipe; 331, conduit;

[0033] 400, inner sleeve; 401, close-fitting groove body; 402, sealing sleeve; 403, sealing ring; 410, mounting plate; 411, gear condition; 412, sliding seat; 413, partition; 420, liquid delivery pipeline; 430, impeller; 431, annular shift seat; 440, rotating rod; 441, fixed sleeve; 442, stabilizing seat; 450, gear transmission element; 500, filter arc plate; 600, collecting barrel; 700, liquid delivery tube body. DETAILED DESCRIPTION

[0034] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0035] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0037] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0038] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0039] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a wind turbine gearbox cooling device of the utility model in conjunction with the accompanying drawings.

[0040] like Figure 1-Figure 10 As shown, a wind turbine gearbox cooling device of the utility model comprises a gearbox body 100, whose main function is to increase the low speed generated by the wind wheel driven by wind to a high speed suitable for efficient operation of the generator. In addition, in order to achieve internal lubrication and temperature control of the gearbox, the gearbox body (100) is equipped with a set of lubricating oil circulation cooling and purification system;

[0041] Specifically, the output end of the oil storage chamber of the gear box (100) is connected to the outside through an air intake pipe (101), which is responsible for drawing the oil out of the gear box. The other end of the air intake pipe (101) is connected to the liquid infusion pump body, and the oil is then transported to the input end of the ring pipe (312) on the liquid transfer box body (300) through the pump body for subsequent processing or cooling;

[0042] At the same time, the input end of the oil storage chamber of the gear box (100) receives the cooled or treated oil through the outlet pipe (102). One end of the outlet pipe (102) is directly connected to the gear box, and the other end is connected to the output end of the liquid delivery pipe (420) to form a closed loop. In this way, the cooled or treated oil can be sent to the gear box (100) again to ensure its continuous and stable operation;

[0043] In the design, a cooling box (200) is arranged on the left side of the gear box (100), and a special heat exchange chamber is constructed inside the component. The main task of the heat exchange chamber is to adjust the temperature of the lubricating oil through the coolant to enhance the heat dissipation performance of the gear box (100) and extend the service life of the lubricating oil.

[0044] Specifically, the inner cavity of the cooling box (200) is designed to accommodate a certain amount of coolant, and this design greatly improves the heat exchange efficiency between the lubricating oil and the coolant. The coolant circulates in the heat exchange chamber and exchanges heat with the lubricating oil, effectively reducing the temperature of the lubricating oil, ensuring that the gear box (100) can maintain a good lubrication state and heat dissipation effect under various working conditions.

[0045] Through the above design, the cooling box (200) not only serves as an auxiliary heat dissipation device of the gear box (100), but also significantly improves the operating efficiency and reliability of the overall system through an optimized heat exchange mechanism;

[0046] A liquid storage tank (210) is specially arranged at the bottom of one side of the cooling box (200). The main function of the liquid storage tank (210) is to serve as a storage container for the cooling liquid to ensure that there is enough cooling liquid supply in the system.

[0047] In order for the coolant to circulate effectively and pass through the system, it needs to be pressurized. Therefore, in the liquid storage tank (210), the coolant is not only stored, but also receives the necessary pressure increase here, so that the coolant can be smoothly pushed into the entire cooling system, thereby ensuring that the heat exchange process in the cooling box (200) can be continued and the normal operating temperature of the gear box (100) is maintained. At one end of the liquid storage tank (210), a liquid delivery pump body (220) is specially installed, and its function is to provide power for the coolant and ensure its circulation in the entire system. Specifically, the suction end of the liquid delivery pump body (220) is tightly connected to the bottom of the liquid storage tank (210) through a pipe, so that the coolant can be directly drawn from the liquid storage tank (210).

[0048] Then, the output end of the liquid delivery pump body (220) is also connected to the upper conduit (331) of the heat exchange tube (330) through another pipeline, which means that the coolant pressurized by the liquid delivery pump body (220) will be directly delivered to the heat exchange tube (330) for heat exchange. After completing the heat exchange process, the coolant will be output from the conduit (331) at the lower part of the heat exchange tube (330), and then return to the internal space of the liquid storage tank (210) through the pipeline connected thereto, forming a complete cycle.

[0049] Such a design ensures that the coolant circulates smoothly between the liquid storage tank (210), the liquid delivery pump body (220), and the heat exchange tube (330), thereby satisfying the cooling demand and ensuring efficient operation of the system.

[0050] The provision of the liquid storage tank (210) not only ensures sufficient supply of the cooling liquid, but also promotes the circulation of the cooling liquid through the pressurization measure, thereby enhancing the cooling efficiency and stability of the entire system;

[0051] As a further optimization of this solution, a cooling plate is installed in the inner cavity of the liquid storage tank 210 to assist in increasing the temperature of the coolant in the liquid storage tank 210;

[0052] Specifically, the inner cavity of the cooling box 200 is provided with a heat exchange component, and the heat exchange component includes a second liquid transfer box 310 for the circulation of lubricating oil, and a heat exchange tube 330 for the circulation of cooling liquid in cooperation with the second liquid transfer box 310. The second liquid transfer box 310 and the heat exchange tube 330 cooperate to perform heat exchange treatment on the lubricating oil when two streams of liquid flow in.

[0053] Furthermore, a liquid transfer box 1 300 with the same structure is disposed above the liquid transfer box 2 310, and the liquid transfer box 1 300 and the liquid transfer box 2 310 are used for liquid inlet and liquid outlet respectively, and the liquid transfer box 1 300 and the liquid transfer box 2 310 are connected to a branch liquid guide pipe 311 on the opposite side, and the opposite ends of the liquid transfer box 1 300 and the liquid transfer box 2 310 are connected to a ring pipe 312 for liquid delivery;

[0054] A filter chamber 320 is provided on the opposite side of the liquid transfer box 1 300 and the liquid transfer box 2 310, wherein the branch liquid guide tube 311 located on the liquid transfer box 1 300 and the liquid transfer box 2 310 is connected to the surface of the filter chamber 320 on the side close to the filter chamber 320, thereby forming a liquid flow channel between the liquid transfer box 1 300, the filter chamber 320 and the liquid transfer box 2 310, and the upper and lower ends of the heat exchange tube 330 are connected with the conduit 331, and the heat exchange tube 330 and the conduit 331 are two chambers, the inner chamber is sleeved on the outer surface of the branch liquid guide tube 311 to connect the two, and the outer chamber is used to circulate the cooling liquid, wherein the filter arc plate 500 is arranged inside the inner sleeve 400;

[0055] During heat exchange, in order to further purify the lubricating oil, an impurity filtering assembly is further provided in the middle of the inner cavity of the cooling box 200, and the impurity filtering assembly includes a filter arc plate 500, and a plurality of filter arc plates 500 are used in combination, and a plurality of filter arc plates 500 are spliced ​​to form an annular filter, and the surface thereof is chamfered to facilitate the rotation of the relatively arranged single filter arc plates 500 under force;

[0056] Specifically, the impurity filtering assembly further includes an impeller 430 for being driven by the flow of liquid, wherein a rotating rod 440 is provided at the output end of the impeller 430, and the rotating rod 440 is rotated by force to drive the relative filtering arc plate 500 to rotate, thereby cleaning the impurities remaining on the surface thereof;

[0057] Specifically, the inner cavity of the filter chamber 320 is provided with an inner sleeve 400, which is used in cooperation with each other, and a close-fitting groove 401 is provided on opposite sides of the two inner sleeves 400, wherein a sealing sleeve 402 is provided for sliding sealing in the inner cavity of the close-fitting groove 401, and a sealing ring 403 is connected to the surface of the sealing sleeve 402, so that under the action of the sealing sleeve 402 and the sealing ring 403, a sealed sliding contact can be formed between the two inner sleeves 400;

[0058] Further, the inner surface of the inner sleeve 400 is connected with a mounting plate 410, and one side of the end of the inner sleeve 400 is connected with a gear condition 411, and the outer ring of the end of the inner sleeve 400 is connected with a sliding seat 412, which is used to cooperate with the stabilizing seat 442 to increase the stability of the fixed sleeve 441 when moving. One end of the inner sleeve 400 is connected with a partition 413, and there are two partitions 413, and the other end of the partition 413 is connected to the inner surface of the filter chamber 320, and the surface of the partition 413 is provided with an empty groove for the filter arc plate 500 to pass in and out;

[0059] Furthermore, a liquid infusion pipe 420 is provided through the middle of the mounting plate 410, and the end of the liquid infusion pipe 420 extends to the end of the liquid transfer box 1 300, and the bottom of the liquid infusion pipe 420 extends to the bottom of the liquid transfer box 2 310, and a ring shift seat 431 is provided through the surface of the liquid infusion pipe 420 and located on the outside of the impeller 430, and the connection between the impeller 430 and the liquid infusion pipe 420 is in sealed sliding contact, wherein the ring shift seat 431 and the impeller 430 are connected by a connecting rod, so that when the impeller 430 is rotated by force, the ring shift seat 431 is driven to rotate through the connecting rod, and the output end of the liquid transfer box 2 310 and the end of the liquid infusion pipe 420 are connected and installed with a liquid delivery pipe body 700, which is used to guide the lubricating oil after heat exchange purification to the inside of the liquid infusion pipe 420, and impact the impeller 430 to rotate;

[0060] Furthermore, both ends of the outer surface of the inner sleeve 400 are slidably sleeved with fixed sleeves 441, wherein one end of the fixed sleeve 441 close to the side of the annular displacement seat 431 is fixedly connected to the surface of the fixed sleeve 441, and the fixed sleeve 441 close to the side of the filter arc plate 500 is rotatably connected to the connection point of the filter arc plate 500, and one end of the rotating rod 440 passes through the outer side of the fixed sleeve 441 and is fixedly connected to the filter arc plate 500, so that when the rotating rod 440 is rotated under force, it can drive the filter arc plate 500 to rotate, and the surface of the sealing sleeve 402 is provided with a mounting hole that matches the fixed sleeve 441, wherein the outer surface of the fixed sleeve 441 connected to the filter arc plate 500 is sleeved in the mounting hole, which not only increases the stability of the fixed sleeve 441 when moving, but also plays a sealing role, and the surface of the fixed sleeve 441 is sleeved with a stabilizing seat 442, and the stabilizing seat The bottom of 442 extends to the inner cavity of the sliding seat 412 and makes sliding contact with the connection therewith, further supporting the fixed sleeve 441, increasing the stability of the filter arc plate 500 when moving and flipping, and in order to drive the rotating rod 440, the surface of the rotating rod 440 is sleeved with a gear transmission member 450, wherein the gear transmission member 450 is meshed and connected with the gear condition 411 when it rotates to the gear condition 411, so that under the action of the impeller 430, the impeller 430 can be driven by the impact of water flow to rotate the annular displacement seat 431, and the annular displacement seat 431 is used to drive multiple matching fixed sleeves 441 and the rotating rod 440 to move, and then drive the filter arc plate 500 to move. When moving, when a single rotating rod 440 and the gear transmission member 450 are meshed, the characteristics between the two can be used to drive the rotating rod 440 to rotate, drive the filter arc plate 500 to flip 180 degrees, and clean the impurities retained on the top thereof;

[0061] Specifically, a collecting barrel 600 is installed at the bottom of the filter chamber 320, close to the opposite side of the two partitions 413, for collecting impurities filtered out of the lubricating oil, wherein a discharge channel is connected to the bottom of one end of the partition 413, one end of the discharge channel extends to the outside of the cooling box 200, and the outlet of the discharge channel is sealed and connected through a shell cover.

[0062] A wind turbine gearbox cooling device works as follows: when the lubricating oil in the gearbox 100 is heat exchanged and then cooled, the lubricating oil in the gearbox 100 is sent to the filter chamber 320 through the liquid transfer box 1 300, and filtered under the action of the filter arc plate 500. The filtered pure lubricating oil is passed into the branch liquid guide pipe 311 on the liquid transfer box 2 310, and the branch liquid guide pipe 311 has cooling liquid flowing in. The two liquids are heat exchanged through the heat exchange pipe 330 and the branch liquid guide pipe 311, and the lubricating oil after heat exchange is passed through The liquid delivery tube body 700 flows back into the liquid delivery pipeline 420, drives the impeller 430 to rotate, and then drives the filter arc plate 500 to move. When moving, the relative rotating rod 440 is engaged with the gear condition 411, and the corresponding filter arc plate 500 can be rotated by the rotating rod 440. The filter arc plate 500 rotates and the impurities attached to the top are dropped into the collection barrel 600 for collection. In this way, the lubricating oil in the gear box 100 is cooled and filtered in a reciprocating manner, and then the lubricating oil is used to lubricate and cool the gears in the gear box 100.

[0063] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A wind turbine gearbox cooling device, characterized in that: The invention comprises a gear box (100), a cooling box (200) being installed on the left side of the gear box (100), and the inner cavity of the cooling box (200) forming a heat exchange chamber, and the inner cavity of the cooling box (200) is provided with a heat exchange component, and the heat exchange component comprises a second liquid transfer box (310) for the circulation of lubricating oil, and a heat exchange pipe (330) for the circulation of cooling liquid in cooperation with the second liquid transfer box (310). At the same time, during heat exchange, in order to further purify the lubricating oil, an impurity filter component is also provided in the middle of the inner cavity of the cooling box (200), and the impurity filter component comprises a filter arc plate (500), and a plurality of filter arc plates (500) are used in cooperation. The invention also comprises an impeller (430), wherein a rotating rod (440) is provided in the output direction of the impeller (430).

2. The wind turbine gearbox cooling device according to claim 1, characterized in that: The output end of the oil storage chamber of the gear box (100) is connected to an air inlet pipe (101) for sending out oil, while the input end of the oil storage chamber of the gear box (100) is connected to an air outlet pipe (102) for sending in oil after heat exchange.

3. The wind turbine gearbox cooling device according to claim 2, characterized in that: A liquid storage box (210) is installed at the bottom of one end of the cooling box body (200). The liquid storage box (210) is used to store cooling liquid. A liquid delivery pump body (220) is installed at the end of the liquid storage box (210).

4. The wind turbine gearbox cooling device according to claim 3 is characterized in that: A liquid transfer box body 1 (300) with the same structure is also arranged above the liquid transfer box body 2 (310), and the opposite sides of the liquid transfer box body 1 (300) and the liquid transfer box body 2 (310) are connected with a branch liquid guide pipe (311), and the opposite ends of the liquid transfer box body 1 (300) and the liquid transfer box body 2 (310) are both connected with a ring pipe (312).

5. The wind turbine gearbox cooling device according to claim 4, characterized in that: A filter chamber (320) is provided on one side of the liquid transfer box body 1 (300) and the liquid transfer box body 2 (310) opposite to each other, wherein the branch liquid guide pipe (311) located on the liquid transfer box body 1 (300) and the liquid transfer box body 2 (310) is connected to the surface of the filter chamber (320) at a side close to the filter chamber (320), and the upper and lower ends of the heat exchange pipe (330) are both connected to the guide pipe (331).

6. The wind turbine gearbox cooling device according to claim 5, characterized in that: The inner cavity of the filter chamber (320) is provided with an inner sleeve (400), and the inner sleeves (400) are used in combination with each other, and a close-fitting groove body (401) is opened on the opposite side of the two inner sleeves (400), wherein the inner cavity sliding seal located in the close-fitting groove body (401) is equipped with a sealing sleeve (402), and the surface of the sealing sleeve (402) is connected to a sealing ring (403).

7. The wind turbine gearbox cooling device according to claim 6, characterized in that: The inner surface of the inner sleeve (400) is connected to a mounting plate (410), one side of the end of the inner sleeve (400) is connected to a gear condition (411), the outer ring of the end of the inner sleeve (400) is connected to a sliding seat (412), and one end of the inner sleeve (400) is connected to a partition plate (413).

8. The wind turbine gearbox cooling device according to claim 7, characterized in that: A liquid infusion pipeline (420) is provided through the middle of the installation plate (410), a ring displacement seat (431) is provided through the surface of the liquid infusion pipeline (420) and outside the impeller (430), and a liquid delivery pipe body (700) is installed in communication with the output end of the second liquid transfer box (310) and the end of the liquid infusion pipeline (420).

9. The wind turbine gearbox cooling device according to claim 8, characterized in that: Both ends of the outer surface of the inner sleeve (400) are slidably sleeved with fixed sleeves (441), and the surface of the fixed sleeve (441) is sleeved with a stabilizing seat (442). In order to drive the rotating rod (440), the surface of the rotating rod (440) is sleeved with a gear transmission member (450).

10. The wind turbine gearbox cooling device according to claim 9, characterized in that: A collecting barrel (600) is installed at the bottom of the filter chamber (320) on the side opposite to the two partitions (413) for collecting impurities filtered out of the lubricating oil.

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