Cooling device for wind power plant fan gear box

Abstract

The utility model provides a cooling device for a wind power plant fan gearbox. The cooling device comprises a gearbox body, an oil outlet pipe, an oil inlet pipe and a cooling filter assembly, wherein the oil outlet pipe and the oil inlet pipe are connected to the gearbox body; the cooling and filtering assembly comprises at least two cooling and filtering units which are fixedly connected and communicated; an inlet pipeline and an outlet pipeline are arranged at the two ends of the cooling and filtering assembly; each cooling and filtering unit comprises a first cooling and filtering unit body and a second cooling and filtering unit body, a cylindrical tubular body is arranged in the first cooling and filtering unit body, and an acute included angle is formed between the first cooling and filtering unit body and the horizontal plane; the second cooling and filtering unit body is fixedly arranged at the bottom end of the cooling and filtering assembly; a filter screen cylinder is also inserted into the first cooling filter unit body; a vertical pipeline is also arranged on the second cooling and filtering unit body. According to the cooling device, lubricating oil in the gearbox can be cooled, impurities are convenient and fast to clean and filter, the normal cooling process is not affected, and the cooling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbine gearbox cooling devices, and in particular to a wind turbine gearbox cooling device for a wind farm. Background Art

[0002] The fan gearbox will generate a certain amount of heat during operation. The temperature of the gear oil in the gearbox increases, which affects the performance of the gear material. Therefore, the gearbox needs to be cooled.

[0003] The existing cooling device only cools the outside of the gear box, and the cooling effect on the lubricating oil is not obvious. In addition, the entire device needs to be disassembled and cleaned in order to filter impurities in the lubricating oil during cooling, which reduces the cooling efficiency. Utility Model Content

[0004] The present application provides a wind farm wind turbine gearbox cooling device, which is used to solve the technical problems in the prior art that the cooling device cannot cool the internal lubricating oil, and the entire device needs to be disassembled to clean and filter impurities, thereby reducing the cooling efficiency.

[0005] The present application provides a wind turbine gearbox cooling device for a wind farm, the cooling device comprising: a gearbox body, an oil outlet pipe and an oil inlet pipe connected to the gearbox body, and a cooling filter assembly;

[0006] The cooling filter assembly comprises at least two cooling filter units, the four cooling filter units are fixedly connected and communicated; an inlet pipe and an outlet pipe are arranged at both ends of the four cooling filter units;

[0007] Each cooling filter unit comprises a first cooling filter unit body and a second cooling filter unit body, wherein a cylindrical tubular body is arranged inside the first cooling filter unit body and forms an acute angle with the horizontal plane; the second cooling filter unit body is fixedly arranged at the bottom end of the cooling filter assembly;

[0008] A filter screen cylinder is inserted into the first cooling filter unit body; and a vertical pipe is also arranged on the second cooling filter unit body.

[0009] In a possible implementation manner, a first conducting pipe perpendicular to the cylindrical tubular body is independently provided at the bottom end of the first cooling filter unit body of each cooling filter unit;

[0010] A horizontal second conducting pipe is independently provided on the second cooling filter unit body of the cooling filter unit adjacent to and downstream of the first conducting pipe;

[0011] The downstream of the first conducting pipe is connected to the upstream of the second conducting pipe.

[0012] In a possible implementation manner, a first nut and a first rubber pad are provided at the bottom end of the vertical pipe of each cooling filter unit;

[0013] The first rubber pad is arranged in the vertical pipe and fits against the inner wall of the vertical pipe; the first nut and the first rubber pad are detachably connected, and the first nut is threadedly connected to one end of the vertical pipe.

[0014] In a possible implementation manner, one end of the cylindrical tubular body in the first cooling filter unit body is connected to the vertical pipe;

[0015] A second nut and a second rubber pad are also provided at one end of the cylindrical tubular body;

[0016] The second rubber pad is detachably connected to one end of the cylindrical tubular body, the second rubber pad is detachably connected to the second nut, and the second nut is threadedly connected to one end of the cylindrical tubular body;

[0017] The second nut is also provided with a nut.

[0018] In a possible implementation manner, a slot is provided on the inner side wall of the cylindrical tubular body, and the filter screen cartridge is inserted into the slot;

[0019] A flow guiding gap is also arranged between the filter screen cylinder and the cylindrical tubular body, and the flow guiding gap is connected to a first conducting pipe in the same cooling filter unit downstream.

[0020] In a possible implementation manner, one end of the filter screen cylinder is in contact with the second rubber pad;

[0021] The other end of the filter screen cylinder is respectively abutted against the first cooling filter unit body and the second cooling filter unit body through a clamping groove.

[0022] In a possible implementation manner, the vertical pipe and the cylindrical tubular body on the first cooling filter unit are connected to the downstream of the second conducting pipe on the same cooling filter unit.

[0023] In a possible implementation manner, the vertical pipe and the cylindrical tubular body on the first upstream cooling filter unit are connected to the inlet pipe;

[0024] The first conducting pipe on the last cooling filter unit downstream is connected to the outlet pipe.

[0025] In a possible implementation manner, flanges are respectively provided on the inlet pipe and the outlet pipe.

[0026] In a possible implementation manner, the cooling device further includes a circulation pump and a solenoid valve;

[0027] The solenoid valve is provided in plurality, and the circulating pump is provided at the end of the oil outlet pipe; the circulating pump is also connected in parallel with a first branch pipe and a second branch pipe;

[0028] One or more cooling filter components are respectively connected to the first branch pipe and the second branch pipe.

[0029] The present application provides a wind turbine gearbox cooling device for a wind farm, which includes a gearbox body, an oil outlet pipe and an oil inlet pipe connected to the gearbox body, and a cooling filter assembly; the cooling filter assembly includes at least two cooling filter units, and the four cooling filter units are fixedly connected and communicated; an inlet pipe and an outlet pipe are arranged at both ends of the four cooling filter units; each cooling filter unit includes a first cooling filter unit body and a second cooling filter unit body, and a cylindrical tubular body is arranged inside the first cooling filter unit body, and an acute angle is formed with the horizontal plane; the second cooling filter unit body is fixedly arranged at the bottom end of the cooling filter assembly; a filter mesh cylinder is also inserted in the first cooling filter unit body; a vertical pipe is also arranged on the second cooling filter unit body; the cooling device provided by the present application can cool the lubricating oil inside the gearbox, and clean and filter impurities without disassembling the entire cooling device, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0031] Figure 1 Schematic diagram of the cooling filter assembly structure of the wind turbine gearbox cooling device provided in this application Figure 1 ;

[0032] Figure 2 A schematic diagram of a wind turbine gearbox cooling device for a wind farm provided in this application;

[0033] Figure 3 Schematic diagram of the cooling filter assembly structure of the wind turbine gearbox cooling device provided in this application Figure 2 .

[0034] Description of reference numerals:

[0035] 1—gear box;

[0036] 2——Oil outlet pipe;

[0037] 3——Circulation pump;

[0038] 4——The first branch;

[0039] 5———The second branch;

[0040] 6——Cooling filter assembly;

[0041] 7———Solenoid valve;

[0042] 8—Oil inlet pipe;

[0043] 601——the first cooling filter unit;

[0044] 602———second cooling and filtering unit;

[0045] 603——the third cooling and filtering unit;

[0046] 604———the fourth cooling filter unit;

[0047] 605—Inlet pipeline;

[0048] 606———Flange;

[0049] 607—Filter cartridge;

[0050] 608——first nut;

[0051] 609——First rubber pad;

[0052] 610——the first cooling filter unit;

[0053] 611———Diversion gap;

[0054] 612———Second nut;

[0055] 613——Nut;

[0056] 614———Second rubber pad;

[0057] 615———second cooling filter unit body;

[0058] 616—Export pipeline;

[0059] 617———First conduction pipeline;

[0060] 618———The second conducting pipeline.

[0061] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0062] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0063] In the description of the present application, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0064] The fan gearbox will generate a certain amount of heat during operation. The temperature of the gear oil in the gearbox increases, which affects the performance of the gear material. Therefore, the gearbox needs to be cooled.

[0065] The existing cooling device only cools the outside of the gear box during cooling, and the cooling effect on the lubricating oil inside the gear box is not obvious; moreover, when cooling the lubricating oil, the cooling and filtering unit needs to be pulled out of the gear box to clean the impurities, and the entire cooling device needs to be stopped at the same time, which reduces the cooling efficiency.

[0066] The present application provides a wind turbine gearbox cooling device for a wind farm, which aims to solve the technical problems in the prior art that the cooling device cannot cool the internal lubricating oil, and the cleaning and filtering impurities require the disassembly of the entire device, which reduces the cooling efficiency. The present application cools the lubricating oil inside the gearbox through the first cooling filter unit, the second cooling filter unit, the third cooling filter unit and the fourth cooling filter unit. At the same time, a vertical pipeline is also provided for cleaning the impurities cooled and filtered, without the need to dismantle the entire device, thereby improving the cooling efficiency.

[0067] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0068] Figures 1 to 3 A wind turbine gearbox cooling device for a wind farm is provided in an embodiment of the present application. Figure 1As shown, the cooling device comprises: a gear box body 1, an oil outlet pipe 2 and an oil inlet pipe 8 connected to the gear box body 1, and a cooling filter assembly 6; the cooling filter assembly 6 comprises at least two cooling filter units, and the four cooling filter units are fixedly connected and communicated; an inlet pipe 605 and an outlet pipe 616 are provided at both ends of the four cooling filter units;

[0069] There is lubricating oil in the gear box 1 that needs to be cooled. An oil outlet pipe 2 and an oil inlet pipe 8 are respectively arranged on the gear box 1, so that the lubricating oil in the gear box can be cooled and circulated. The oil inlet pipe 2 and the oil outlet pipe 8 are also respectively connected to a cooling filter assembly 6. The cooling filter assembly 6 includes at least two cooling filter units, for example, there may be two cooling filter units, three cooling filter units, four cooling filter units, etc.; in this embodiment, a cooling filter assembly 6 having four cooling filter units is adopted, and the four cooling filter units are fixedly connected in sequence and connected. An inlet pipe 605 and an outlet pipe 606 are arranged at both ends of the cooling filter assembly 6 composed of the four cooling filter units, that is, the upstream of the first cooling filter unit is connected to the inlet pipe 605, and the downstream of the last cooling filter unit is connected to the outlet pipe 606, so that the cooling filter assembly 6 circulates, cools and filters the lubricating oil in the gear box 1;

[0070] Each cooling filter unit includes a first cooling filter unit body 615 and a second cooling filter unit body 610. A cylindrical tubular body is disposed inside the first cooling filter unit body 615 and forms an acute angle with the horizontal plane. The second cooling filter unit body 610 is fixedly disposed at the bottom end of the cooling filter assembly 6.

[0071] Each of the four cooling filter units includes a first cooling filter unit body 610 and a second cooling filter unit body 615, a cylindrical tubular body is disposed inside the first cooling filter unit body 615, and the first cooling filter unit body 610 is fixedly disposed at the bottom end of the cooling filter assembly 6;

[0072] A filter screen cartridge 607 is also inserted into the first cooling filter unit body 615 ; a vertical pipe is also provided on the second cooling filter unit body 610 .

[0073] In order to achieve the cooling and filtering effects, a filter screen cartridge 607 is also inserted into the first cooling filter unit body 615, and a vertical pipe is also provided on the second cooling filter unit body 610. The impurities filtered by the filter screen cartridge 607 on each cooling filter unit are collected in the vertical pipe, which can be cleaned regularly or irregularly without disassembling the entire device to affect the cooling efficiency and process.

[0074] Furthermore, flanges 606 are respectively provided on the inlet pipe 605 and the outlet pipe 616 .

[0075] Flanges 606 are independently provided on the inlet pipe 605 and the outlet pipe 616, respectively. The flanges can be used to detachably connect multiple cooling filter components 6 on the cooling device, so that the cooling device can better play a cooling and filtering effect; at the same time, it can also meet the cooling requirements of lubricating oils at different temperatures.

[0076] Further, such as Figure 2 As shown, the cooling device also includes a circulation pump 3 and a solenoid valve 7; a plurality of solenoid valves 7 are provided, and the circulation pump 3 is provided at the end of the oil outlet pipe 2; the circulation pump 3 is also connected in parallel with a first branch pipe 4 and a second branch pipe 5; the first branch pipe 4 and the second branch pipe 5 are respectively connected with one or more cooling filter components 6.

[0077] The cooling device includes a circulation pump 3, which is used to transport the lubricating oil in the gear box to the cooling device for cooling. The flow rate of the lubricating oil in the delivery pipe is controlled by a solenoid valve 7, and at the output end of the circulation pump 3, a first branch pipe 4 and a second branch pipe 5 are connected in parallel; at the output ends of the first branch pipe 4 and the second branch pipe 5, one or more cooling filter components 6 are independently connected respectively;

[0078] like Figure 3 As shown, two cooling filter assemblies 6 can be connected to the output ends of the first branch pipe 4 and the second branch pipe 5 respectively, and the cooling filter assemblies 6 are connected by flanges 606. In this embodiment, there is no special limitation on the number of cooling filter assemblies 6 to be installed.

[0079] During the specific implementation process, a cooling device is installed on the gear box, and the oil outlet pipe 3 outputs the lubricating oil to be cooled and filtered in the gear box. After passing through the circulating pump 3, it enters the first branch pipe 4 and / or the second branch pipe 5, and passes through the cooling filter assembly 6. The lubricating oil to be cooled and filtered enters from the inlet pipe 605 and flows into the filter cylinder 607. The filtered impurities are precipitated into the vertical pipe of the first cooling filter unit body 610. The lubricating oil after cooling and filtering flows out from the guide gap 611, flows into the first conducting pipe 617 in the same cooling filter unit, and then flows into the first conducting pipe 618 of the adjacent cooling filter unit. After passing through multiple cooling filter units in turn, the lubricating oil after cooling and filtering is transported into the gear box from the oil inlet pipe 8 to complete the cooling filtration.

[0080] The embodiment of the present application provides a wind farm wind turbine gearbox cooling device, which includes a gearbox body, an oil outlet pipe and an oil inlet pipe connected to the gearbox body, and a cooling filter assembly; the cooling filter assembly includes at least two cooling filter units, and the four cooling filter units are fixedly connected and communicated; an inlet pipe and an outlet pipe are arranged at both ends of the four cooling filter units; each cooling filter unit includes a first cooling filter unit body and a second cooling filter unit body, and a cylindrical tubular body is arranged inside the first cooling filter unit body, and an acute angle is formed with the horizontal plane; the second cooling filter unit body is fixedly arranged at the bottom end of the cooling filter assembly; a filter mesh cylinder is also inserted in the first cooling filter unit body; a vertical pipe is also arranged on the second cooling filter unit body; the cooling device provided by the embodiment of the present application can cool the lubricating oil inside the gearbox, and clean the filtered impurities without disassembling the entire cooling device, thereby improving the cooling efficiency.

[0081] On the basis of the above embodiments, further, Figure 1 As shown, the bottom end of the first cooling filter unit body 615 of each cooling filter unit is independently provided with a first conducting pipe 617 perpendicular to the cylindrical tubular body; a horizontal second conducting pipe 618 is independently provided on the second cooling filter unit body 610 of the downstream cooling filter unit adjacent to the first conducting pipe 617; the downstream of the first conducting pipe 617 is connected to the upstream of the second conducting pipe 618.

[0082] The cooling filter assembly 6 includes a first cooling filter unit 601, a second cooling filter unit 602, a third cooling filter unit 603 and a fourth cooling filter unit 604. At the bottom end of the first cooling filter unit body 615 of each cooling filter unit, a first conducting pipe 617 vertical to a cylindrical tubular body is independently arranged, and on the second cooling filter unit body 610 of the downstream cooling filter unit adjacent to the first conducting pipe 617, a horizontal second conducting pipe 618 is independently arranged. The downstream of the first conducting pipe 617 in the first cooling filter unit 601 is connected to the upstream of the second conducting pipe 618 in the second cooling filter unit 602, so that the first cooling filter unit 601, the second cooling filter unit 602, and the third cooling filter unit 603 are connected to the fourth cooling filter unit 604 in sequence, so as to better achieve the cooling and filtering effects.

[0083] Furthermore, if Figure 1 As shown, a first nut 608 and a first rubber pad 609 are provided at the bottom end of the vertical pipe of each cooling filter unit; the first rubber pad 609 is arranged in the vertical pipe and fits with the inner wall of the vertical pipe; the first nut 608 and the first rubber pad 609 are detachably connected, and the first nut 608 is threadedly connected to one end of the vertical pipe.

[0084] A first nut 608 and a first rubber pad 609 are provided at the bottom end of the vertical pipe of each cooling filter unit; the first rubber pad 609 is provided in the vertical pipe and fits against the inner wall of the vertical pipe; the first nut 608 and the first rubber pad 609 are detachably connected, the first nut 608 is threadedly connected to one end of the vertical pipe, the first nut 608 and the first rubber pad 609 can be removed from the vertical pipe, and the filtered impurities can be cleaned through the vertical pipe.

[0085] Furthermore, if Figure 1 As shown, one end of the cylindrical tubular body in the first cooling filter unit 615 is connected to the vertical pipe; one end of the cylindrical tubular body is also provided with a second nut 612 and a second rubber pad 614; the second rubber pad 614 is detachably connected to one end of the cylindrical tubular body, the second rubber pad 614 is detachably connected to the second nut 612, and the second nut 612 is threadedly connected to one end of the cylindrical tubular body; a nut 613 is also provided on the second nut 612.

[0086] One end of the cylindrical tubular body in the first cooling filter unit 615 is connected to the vertical pipe, and the impurities filtered by the cylindrical tubular body can be precipitated into the vertical pipe after being cooled by the cylindrical tubular body; a second nut 612 and a second rubber pad 614 are also provided at one end of the cylindrical tubular body; the second rubber pad 614 is detachably connected to one end of the cylindrical tubular body, the second rubber pad 614 is detachably connected to the second nut 612, and the second nut 612 is threadedly connected to one end of the cylindrical tubular body; a nut 613 is also provided on the second nut 612, and the cylindrical tubular body forms an acute angle with the horizontal plane, which can reduce the flow rate of the inflowing lubricating oil, thereby achieving a better cooling effect.

[0087] Furthermore, if Figure 1 As shown, a slot is provided on the inner wall of the cylindrical tubular body, and the filter screen cartridge 607 is inserted into the slot; a guide gap 611 is also provided between the filter screen cartridge 607 and the cylindrical tubular body, and the guide gap 611 is connected to the first conduction pipe 617 in the same cooling filter unit.

[0088] A card slot is provided on the inner wall of the cylindrical tubular body, and the card slot is used to insert the filter screen cartridge 607. The filter screen cartridge 607 can be stably fixed in the cylindrical tubular body through the card slot, the second nut 612 and the second rubber pad 614. A guide gap 611 is also provided between the filter screen cartridge 607 and the cylindrical tubular body. The guide gap 611 is connected to the first guide pipe 617 in the same cooling filter unit. The guide gap 611 can allow the lubricating oil cooled and filtered by each cooling filter unit to flow into the next cooling filter unit or the outlet pipe 616.

[0089] Furthermore, if Figure 1As shown, one end of the filter screen cartridge 607 abuts against the second rubber pad 614; the other end of the filter screen cartridge 607 abuts against the first cooling filter unit body 615 and the second cooling filter unit body 610 through the slot.

[0090] One end of the filter screen cylinder 607 is in contact with the second rubber pad 614; the other end of the filter screen cylinder 607 is in contact with the first cooling filter unit body 615 and the second cooling filter unit body 610 through the slot, so that the lubricating oil flowing into each cooling filter unit can be cooled and filtered.

[0091] Furthermore, if Figure 1 As shown, the vertical pipe and the cylindrical tubular body on the first cooling filter unit 601 are connected to the downstream of the second conductive pipe 618 on the same cooling filter unit.

[0092] The vertical pipe and cylindrical tubular body on the first cooling filter unit 601 are connected to the downstream of the second conducting pipe 618 on the same cooling filter unit, so as to facilitate the lubricating oil cooled and filtered by the cooling filter unit to be transported to the next cooling filter unit for further cooling and filtering.

[0093] Furthermore, if Figure 1 As shown, the vertical pipe and cylindrical tubular body on the first upstream cooling filter unit are connected to the inlet pipe 605; the first conducting pipe 617 on the last downstream cooling filter unit is connected to the outlet pipe 616.

[0094] The vertical pipe and cylindrical tubular body on the first upstream cooling filter unit are connected to the inlet pipe 605; the first conducting pipe 617 on the last downstream cooling filter unit is connected to the outlet pipe 616, so that the lubricating oil can flow in the cooling filter assembly 6 and be cooled and filtered.

[0095] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0096] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0097] It should be noted that the phrases "in specific implementation", "in some embodiments", "in this embodiment", "exemplarily" and the like mentioned in the specification indicate that the described embodiment may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.

[0098] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0099] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0100] In addition, spatially relative terms may be used herein for ease of description, for example, "below," "below," "below," "above," "above," etc., to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein may also be interpreted accordingly. In the above embodiments, the descriptions of each embodiment have their own emphases. For parts that are not described in detail in a particular embodiment, please refer to the relevant descriptions of other embodiments.

[0101] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] Furthermore, in the description of the present invention, it should be noted that the terms "front", "rear", etc. indicate positions or positional relationships based on the positions or positional relationships, or the positions or positional relationships in which the product of the present invention is usually placed when in use, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0103] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0104] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A wind farm wind turbine gearbox cooling device, characterized in that: The cooling device comprises: a gear box body (1), an oil outlet pipe (2) and an oil inlet pipe (8) connected to the gear box body (1), and a cooling filter assembly (6); The cooling filter assembly (6) comprises at least two cooling filter units, the at least two cooling filter units are fixedly connected and communicated; an inlet pipe (605) and an outlet pipe (616) are provided at both ends of the at least two cooling filter units; Each cooling filter unit comprises a first cooling filter unit body (615) and a second cooling filter unit body (610); a cylindrical tubular body is arranged inside the first cooling filter unit body (615) and forms an acute angle with a horizontal plane; the second cooling filter unit body (610) is fixedly arranged at the bottom end of the cooling filter assembly (6); A filter screen cartridge (607) is also inserted into the first cooling filter unit body (615); and a vertical pipe is also provided on the second cooling filter unit body (610).

2. The cooling device according to claim 1, characterized in that: A first conducting pipe (617) perpendicular to the cylindrical tubular body is independently provided at the bottom end of the first cooling filter unit body (615) of each cooling filter unit; A horizontal second conducting pipe (618) is independently provided on the second cooling filter unit body (610) of the cooling filter unit, adjacent to and downstream of the first conducting pipe (617); The downstream of the first conducting pipe (617) is connected to the upstream of the second conducting pipe (618).

3. The cooling device according to claim 2, characterized in that: A first nut (608) and a first rubber pad (609) are provided at the bottom end of the vertical pipe of each cooling filter unit; The first rubber pad (609) is arranged in the vertical pipe and fits against the inner wall of the vertical pipe; the first nut (608) and the first rubber pad (609) are detachably connected, and the first nut (608) is threadedly connected to one end of the vertical pipe.

4. The cooling device according to claim 1, characterized in that: One end of the cylindrical tubular body in the first cooling filter unit body (615) is connected to the vertical pipe; A second nut (612) and a second rubber pad (614) are also provided at one end of the cylindrical tubular body; The second rubber pad (614) is detachably connected to one end of the cylindrical tubular body, the second rubber pad (614) is detachably connected to the second nut (612), and the second nut (612) is threadedly connected to one end of the cylindrical tubular body; The second nut (612) is also provided with a nut (613).

5. The cooling device according to claim 4, characterized in that: A slot is provided on the inner wall of the cylindrical tubular body, and the filter screen cartridge (607) is inserted into the slot; A flow guide gap (611) is also provided between the filter screen cartridge (607) and the cylindrical tubular body, and the flow guide gap (611) is connected to a first conduction pipe (617) in the same downstream cooling filter unit.

6. The cooling device according to claim 4 or 5, characterized in that: One end of the filter screen cylinder (607) is in contact with the second rubber pad (614); The other end of the filter screen cylinder (607) is respectively abutted against the first cooling filter unit body (615) and the second cooling filter unit body (610) through a slot.

7. The cooling device according to claim 2 or 3, characterized in that: The vertical pipe and the cylindrical tubular body on the first cooling filter unit (601) are connected to the downstream of the second conducting pipe (618) on the same cooling filter unit.

8. The cooling device according to claim 2 or 3, characterized in that: The vertical pipe and the cylindrical tubular body on the first upstream cooling filter unit are connected to the inlet pipe (605); The first conducting pipe (617) on the last cooling filter unit downstream is connected to the outlet pipe (616).

9. The cooling device according to claim 1, characterized in that: The inlet pipe (605) and the outlet pipe (616) are respectively provided with flanges (606).

10. The cooling device according to claim 1, characterized in that: The cooling device further comprises a circulation pump (3) and a solenoid valve (7); A plurality of solenoid valves (7) are provided, and the circulating pump (3) is provided at the end of the oil outlet pipe (2); the circulating pump (3) is also connected in parallel with a first branch pipe (4) and a second branch pipe (5); One or more cooling filter components (6) are respectively connected to the first branch pipe (4) and the second branch pipe (5).

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