Lubricating oil filtering and cooling device for wind turbine gearboxes

Abstract

We provide a lubricating oil filtering and cooling device for a gearbox of a wind turbine generator. [Solution] The cooling assembly includes a circulation box (100) to which an oil discharge pipe communicating with the oil discharge port of the gearbox is attached, an oil pump is attached at its uppermost end, and an oil supply pipe (103) communicating with the oil supply port of the gearbox is connected at its outlet end, a refrigeration pipe (201) and a guide pipe (202) attached within the circulation box, an inner box (203) fixedly connected within the circulation box, and an equalizing member (204) provided within the circulation box, wherein both ends of the guide pipe are respectively connected to the oil pump and the inner box, and the inside of the circulation box is filled with cooling liquid, a filter fixedly connected within the inner box, a cleaning member provided above the filter, and a drive member movably connected to the circulation box.

Description

[Technical field]

[0001] The present invention relates to the technical field of a gearbox for a wind power generator, and in particular to a lubricating oil filtering and cooling device for a gearbox for a wind power generator. [Background technology]

[0002] A gearbox is one of the mechanical components commonly used in wind turbines, and its main role is to transmit the power generated by the fan wheel under the action of wind force to the generator to obtain the corresponding rotation speed. Usually, the rotation speed of the fan wheel is very low, far from the rotation speed required for the generator to generate electricity, and must be achieved by the speed-up action of the gear pair in the gearbox, so the gearbox is also called a speed-up box.

[0003] When the gearbox is in operation, lubricating oil flows through it. In a conventional gearbox, the gears in the gearbox rub against each other during a long period of operation, causing the temperature inside the gearbox to rise, i.e., the temperature of the lubricating oil to rise. In addition, when the gears rub against each other during a long period of operation, a certain amount of impurities such as metal scrap iron will be generated. Due to the high temperature and impurities such as scrap iron, the service life of the gearbox will be reduced. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and briefly describe some preferred embodiments. This section, the Abstract of the application, and the title of the invention may be abbreviated or omitted so as not to obscure the purpose of this section, the Abstract, and the title of the invention, and such abbreviations or omissions are not intended to limit the scope of the present invention.

[0005] In view of the above or other problems existing in the prior art, the present invention is proposed.

[0006] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a lubricating oil filtering and cooling device for a gearbox of a wind turbine generator.

[0007] In order to solve the above technical problems, the present invention provides the following technical solution: A lubricating oil filtering and cooling device for a gearbox for a wind power generator, comprising: a circulation box, one side of which is fitted with an oil discharge pipe communicating with an oil discharge port of the gearbox, an oil pump is fitted at the top end, and an oil supply pipe communicating with an oil supply port of the gearbox is connected to the outlet end of the oil pump, a cooling assembly including a refrigeration pipe and a guide pipe mounted in the circulation box, an inner box fixedly connected in the circulation box, and an equalizing member provided in the circulation box, both ends of the guide pipe respectively communicate with the oil pump and the inner box, and the inside of the circulation box is filled with a cooling liquid, a cleaning assembly including a filter fixedly connected in the inner box, a cleaning member provided above the filter, and a driving member movably connected to the circulation box, the driving member being connected to be coupled to the cleaning member and the equalizing member respectively.

[0008] In a preferred embodiment of the lubricating oil filtering and cooling device for a gearbox for a wind power generator described in the present invention, the homogenizing member includes a housing fixedly connected to one side of the circulation box, a motor fixedly connected to the inner wall of the housing, and a rotating shaft fixedly connected to the output shaft of the motor, and a first stirring blade and a second stirring blade are fixedly connected to the outer periphery of the rotating shaft.

[0009] In a preferred embodiment of the lubricating oil filtering and cooling device for a gearbox for a wind power generator described in the present invention, the cleaning member includes a movable rod, a cleaning brush fixedly connected to one side of the movable rod, and a slide rod fixedly connected to the inner wall of the internal box, and an end of the cleaning brush separated from the movable rod is slidably fitted onto the outer periphery of the slide rod, a slide bush is fixedly connected to the inner wall of the internal box, and the movable rod is slidably connected to the slide bush.

[0010] In a preferred embodiment of the lubricating oil filtering and cooling device for a gearbox for a wind turbine generator described in the present invention, the driving member includes a speed change gear rotatably connected to one side of the circulation box, a driving gear fixedly connected to the output shaft of the motor, and a rotating disk provided on one side of the speed change gear, the driving gear being connected to be meshed with the speed change gear, and the rotating disk being connected to be meshed with the speed change gear.

[0011] In a preferred embodiment of the lubricating oil filtering and cooling device for a gearbox for a wind power generator described in the present invention, the driving member further includes a rotating rod fixedly connected to the center of the rotating disk, a grooved plate moving together with the rotating rod, and a fan-tooth plate fixedly connected to the uppermost end of the grooved plate, the rotating rod being rotatably connected to the inner box, and the rotating rod, the grooved plate and the fan-tooth plate being all located within the inner box.

[0012] In a preferred embodiment of the lubricating oil filtering and cooling device for a gearbox for a wind power generator described in the present invention, a connecting rod is fixedly connected to the side of the grooved plate, and the connecting rod is rotatably connected to the inner wall of the inner box. One side of the rotating rod is provided with a bump, and the bump is located in the hollow groove of the grooved plate and fits with the grooved plate.

[0013] In a preferred embodiment of the lubricating oil filtering and cooling device for a gearbox for a wind power generator described in the present invention, an extension plate is fixedly connected to the bottom end of the movable rod, a tooth groove is opened at the bottom end of the extension plate, and the extension plate is connected to be meshed with a sector tooth plate via the tooth groove.

[0014] In a preferred embodiment of the lubricating oil filtering and cooling device for a gearbox for a wind turbine generator described in the present invention, the cleaning assembly further includes a collection chamber provided on the lower side of the filter, a collection case is connected to the inside of the collection chamber so as to engage with the collection chamber, and a magnetic plate is inserted into the inside of the collection case.

[0015] In a preferred embodiment of the lubricating oil filtering and cooling device for a gearbox for a wind turbine generator described in the present invention, a cover plate is provided above the collection case, a support rod is fixedly connected between the cover plate and the collection case, and the cover plate is fixedly connected to the uppermost end of the circulation box.

[0016] In a preferred embodiment of the lubricating oil filtering and cooling device for a gearbox of a wind power generator described in the present invention, the rotating disk is rotatably connected to the circulation box, and the rotating disk, the driving gear and the speed change gear are all located in the internal cavity of the housing.

[0017] The beneficial effects of the present invention are as follows: In the present invention, the circulation box and the cooling assembly are provided to perform circulation cooling treatment for the lubricating oil in the gearbox; during the cooling process, the lubricating oil can be cooled twice in different ways, which is helpful to improve the overall cooling effect; and when the lubricating oil is cooled for the first time, impurities such as scrap iron in the lubricating oil can be filtered out; that is, the function of cooling and filtering / removing impurities is combined to better meet the actual requirements of the gearbox for wind power generators. The homogenizing member makes the coolant in the circulation box flow, which is helpful to uniformly dissipate heat from the lubricating oil in the gearbox; and when the homogenizing member is operated, the driving member drives the reciprocating movement of the cleaning member, which can automatically clean the filter during filtering and prevent the filter from clogging; and the cleaning member can mix the lubricating oil in the inner box during the movement, which can help the lubricating oil to dissipate heat. [Brief description of the drawings]

[0018] In order to more clearly explain the technical solutions of the embodiments of the present invention, the following will briefly describe the drawings used in the description of the embodiments. Of course, the drawings described below are only a part of the embodiments of the present invention, and those skilled in the art can think of other drawings based on these drawings without any creative efforts. [Figure 1] FIG. 2 is a structural schematic diagram of the present invention. [Diagram 2] FIG. 2 is a schematic diagram of the structure of the present invention when the cover plate is removed. [Diagram 3] FIG. [Figure 4] FIG. 2 is a schematic diagram of a portion of the internal structure of the present invention. [Diagram 5] FIG. 2 is a schematic diagram of the structure of a cleaning member and a driving member of the present invention; [Figure 6] FIG. 2 is a schematic diagram of the structure of the driving member of the present invention when the rotating disk and the rotating rod are removed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] In order to make the above objectives, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below with reference to the drawings in the specification.

[0020] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention; however, the present invention may be embodied in other forms different from those described herein, and those skilled in the art will be able to similarly disseminate the present invention without violating the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

[0021] As used herein, the term "one embodiment" or "embodiment" refers to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they mutually exclusive with other embodiments, either alone or in the alternative.

[0022] Example 1 1, 3 and 4, which is a first embodiment of the present invention, the embodiment provides a lubricant filtering and cooling device for a gearbox of a wind power generator, which can solve the problem of heat dissipation and temperature reduction of the lubricant in the gearbox, the device including a circulation box 100 and a cooling assembly 200, the cooling assembly 200 being located inside the circulation box 100, one side of the circulation box 100 is provided with an oil discharge pipe 101 connected to the oil discharge port of the gearbox (not shown), an oil pump 102 is provided at the top end of the circulation box 100, and an oil supply pipe 103 connected to the oil supply port of the gearbox is connected to the outlet end of the oil pump 102, among which, the gearbox, the oil discharge pipe 101, the circulation box 100, the oil pump 102 and the oil supply pipe 103 form a closed-loop circulation system, so that the lubricant for the gearbox can circulate and flow inside the circulation box 100, and the cooling assembly 200 performs heat dissipation and temperature reduction treatment on the lubricant.

[0023] Further, the cooling assembly 200 includes a refrigeration pipe 201 and a guide pipe 202 mounted in the circulation box 100, an inner box 203 fixedly connected in the circulation box 100, and an equalizing member 204 provided in the circulation box 100, and both ends of the guide pipe 202 are connected to the oil pump 102 and the inner box 203, respectively. Specifically, the gear box, the oil discharge pipe 101, the inner box 203, the guide pipe 202, the oil pump 102 and the oil supply pipe 103 form a closed-loop circulation system, and the inside of the circulation box 100 is filled with a cooling liquid. By providing the equalizing member 204, the cooling liquid can be made to flow and the lubricating oil for the gearbox can be uniformly dissipated heat.

[0024] Preferably, the guide tube 202 and the inner box 203 are both supported by thermally conductive metal materials such as copper, aluminum, etc., and the guide tube 202 is arranged in a spiral shape, thereby extending the time for the lubricating oil to pass through the inside of the circulation box 100, and further extending the cooling time of the lubricating oil, thereby improving the overall heat dissipation and cooling effect.

[0025] Furthermore, the homogenizing member 204 includes a housing 204a fixedly connected to one side of the circulation box 100, a motor 204b fixedly connected to the inner wall of the housing 204a, and a rotating shaft 204c fixedly connected to the output shaft of the motor 204b, and a first stirring blade 204e and a second stirring blade 204f are fixedly connected to the outer periphery of the rotating shaft 204c, the rotating shaft 204c is rotatably connected to the circulation box 100 and extends to the inside of the circulation box 100, the end of the rotating shaft 204c that is separated from the motor 204b is rotatably connected to the inner wall of the circulation box 100, the first stirring blade 204e is provided as a screw blade, and two sets of the second stirring blades 204f are provided, and the two sets of the second stirring blades 204f are located on both sides of the first stirring blade 204e.

[0026] During use, the refrigeration tube 201 cools the coolant, and the inner box 203 and the guide tube 202 are immersed in the coolant. When the oil pump 102 is started, the lubricating oil in the gearbox flows into the inner box 203 through the oil discharge tube 101. When the lubricating oil flows into the inner box 203, it performs an initial heat dissipation and temperature reduction process. Then, the lubricating oil flows through the guide tube 202, and when the lubricating oil flows through the guide tube 202, it performs a secondary heat dissipation and temperature reduction process. The lubricating oil that has been heat-dissipated twice returns to the gearbox through the oil pump 102 and the oil supply tube 103. During this process, the motor 204b is in an operating state and drives the rotation of the first stirring blade 204e and the second stirring blade 204f, which rotates the first stirring blade 204e and the second stirring blade 204f to mix the coolant and make the coolant flow, thereby improving the overall heat dissipation effect.

[0027] Example 2 4, 5 and 6, which shows a second embodiment of the present invention, which differs from the first embodiment in the following respects. The lubricating oil filtering and cooling device for the gearbox of the wind power generator further includes a cleaning assembly 300, which is installed in the inner box 203 and includes a filter 301 fixedly connected in the inner box 203, a cleaning member 302 installed above the filter 301, and a driving member 303 movably connected to the circulation box 100, and the driving member 303 is connected to be coupled with the cleaning member 302 and the equalizing member 204 respectively, where the oil discharge pipe 101 is located above the filter 301, and the connection port between the inner box 203 and the guide pipe 202 is located below the filter 301, that is, the lubricating oil discharged through the oil discharge pipe 101 enters the guide pipe 202 after being filtered by the filter 301, and the motor 204b of the equalizing member 204 can drive the operation of the cleaning member 302 by the driving member 303, so that the cleaning member 302 can automatically clean the filter 301.

[0028] Furthermore, the cleaning assembly 300 further includes a collection chamber 304 arranged on the lower side of the filter 301, a collection case 304a is connected to the inside of the collection chamber 304 so as to be engaged therewith, and a magnet plate 304b is inserted into the inside of the collection case 304a, where the filter 301 is arranged at an angle, and the collection chamber 304 is located on one side of the lower end of the filter 301, and when the gearbox operates, a certain amount of scrap iron and other impurities are generated, and the presence of impurities such as scrap iron affects the operation inside the gearbox, so that the magnet plate 304b is arranged to facilitate absorption of impurities such as scrap iron.

[0029] Preferably, a cover plate 304c is provided above the collection case 304a, and a support rod 304d is fixedly connected between the cover plate 304c and the collection case 304a. The cover plate 304c is fixedly connected to the uppermost end of the circulation box 100 and may be fixedly connected to the circulation box 100 via a bolt to facilitate subsequent removal and cleaning of the cover plate 304c and the collection case 304a from within the circulation box 100.

[0030] During use, the lubricating oil of the gearbox enters the inner box 203 through the oil discharge pipe 101, and the filter 301 filters out impurities such as iron scrap in the lubricating oil. After the lubricating oil is filtered by the filter 301, it can not only reduce the impact of impurities such as iron scrap in the lubricating oil on the gearbox, but also protect the oil pump 102. During the filtering process, the cleaning member 302 automatically cleans the filter 301, and the impurities filtered out by the filter 301 can be collected in the collecting case 304a, so that when the impurities are to be cleaned later, it is only necessary to take out the cover plate 304c, the supporting rod 304d and the collecting case 304a.

[0031] Example 3 3-6, which is a third embodiment of the present invention, this embodiment is based on the previous two embodiments, and the cleaning member 302 includes a movable rod 302a, a cleaning brush 302b fixedly connected to one side of the movable rod 302a, and a sliding rod 302c fixedly connected to the inner wall of the inner box 203, and the end of the cleaning brush 302b away from the movable rod 302a is slidably fitted on the outer periphery of the sliding rod 302c, and a sliding bush 302a-2 is fixedly connected to the inner wall of the inner box 203, and the movable rod 302a is slidably connected to the sliding bush 302a-2, and there are two sliding bushes 302a-2 in total, and the provision of the sliding bushes 302a-2 can guide the moving direction of the movable rod 302a.

[0032] Specifically, the driving member 303 includes a transmission gear 303a rotatably connected to one side of the circulation box 100, a driving gear 303b fixedly connected to the output shaft of the motor 204b, and a rotating disk 303c provided on one side of the transmission gear 303a, where the driving gear 303b is connected to be meshed with the transmission gear 303a, and the rotating disk 303c is connected to be meshed with the transmission gear 303a, and the outer periphery of the rotating disk 303c is provided with tooth grooves that match the transmission gear 303a.

[0033] Furthermore, the driving member 303 further includes a rotating rod 303d fixedly connected to the center of the rotating disk 303c, a grooved plate 303e moving together with the rotating rod 303d, and a fan-tooth plate 303f fixedly connected to the uppermost end of the grooved plate 303e, wherein the rotating rod 303d is rotatably connected to the internal box 203, and the rotating rod 303d, the grooved plate 303e and the fan-tooth plate 303f are all located within the internal box 203.

[0034] Furthermore, a connecting rod 303e-1 is fixedly connected to the side of the grooved plate 303e, and the connecting rod 303e-1 is rotatably connected to the inner wall of the internal box 203. A bump 303d-1 is provided on one side of the rotating rod 303d, and the bump 303d-1 is located in the hollow groove of the grooved plate 303e and fits with the grooved plate 303e.

[0035] Preferably, an extension plate 302a-1 is fixedly connected to the bottom end of the movable rod 302a, a tooth groove is formed at the bottom end of the extension plate 302a-1, and the extension plate 302a-1 is connected to be meshed with the sector tooth plate 303f via the tooth groove.

[0036] Preferably, the rotating disk 303c is rotatably connected to the circulation box 100, and the rotating disk 303c, the driving gear 303b and the speed change gear 303a are all located in the internal cavity of the housing 204a.

[0037] In use, the motor 204b drives the rotation of the driving gear 303b, which drives the rotation of the speed change gear 303a, which drives the rotation of the rotating disk 303c, the rotating rod 303d maintains synchronous rotation with the rotating disk 303c, when the rotating rod 303d rotates, the bump 303d-1 operates in the hollow groove of the grooved plate 303e, the grooved plate 303e oscillates back and forth within a certain angle range due to the action of the rotating rod 303d and the bump 303d-1, the fan-shaped tooth plate 303f is connected to be meshed with the extension plate 302a-1, the fan-shaped tooth plate 303f maintains synchronous movement with the grooved plate 303e, and further moves the movable rod 302a back and forth, and finally the cleaning brush 302b cleans the filter 301 back and forth.

[0038] As described above, the refrigeration tube 201 performs a process of lowering the temperature of the cooling liquid, and the inner box 203 and the guide tube 202 are immersed in the cooling liquid. When the oil pump 102 is started, the lubricating oil in the gear box flows into the inner box 203 through the oil discharge tube 101. When the lubricating oil flows into the inner box 203, an initial heat dissipation and temperature reduction process is performed. Then, the lubricating oil flows through the guide tube 202. When the lubricating oil flows through the guide tube 202, a secondary heat dissipation and temperature reduction process is performed. When the lubricating oil enters the inner box 203 through the oil discharge tube 101, the filter 301 filters impurities such as iron scrap in the lubricating oil. During the filtration, the motor 204b drives the rotation of the drive gear 303b, and the drive gear 303 is rotated. 3. The variable speed gear 303b drives the rotation of the speed change gear 303a, the speed change gear 303a drives the rotation of the rotating disk 303c, the rotating rod 303d maintains synchronous rotation with the rotating disk 303c, when the rotating rod 303d rotates, the bump 303d-1 operates in the hollow groove of the grooved plate 303e, the grooved plate 303e oscillates back and forth within a certain angle range due to the action of the rotating rod 303d and the bump 303d-1, the fan-shaped tooth plate 303f is connected to be meshed with the extension plate 302a-1, maintains synchronous movement with the grooved plate 303e, and further moves the movable rod 302a back and forth, and finally the cleaning brush 302b cleans the filter 301 back and forth.

[0039] It is important to note that the structures and arrangements of the present application as shown in the different exemplary embodiments are merely exemplary. Although the disclosure herein details only a few embodiments, as the reader of this disclosure can readily appreciate, many modifications (e.g., changes in the dimensions, scales, structures, shapes and proportions of the various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) are possible, given the novel teachings and advantages that do not substantially depart from the subject matter described in the application. For example, an element shown as being integral may be composed of multiple parts or elements, the location of an element may be inverted or otherwise altered, and the nature or number or location of discrete elements may be changed or modified. Thus, all such modifications are intended to be within the scope of the present invention. The order or sequence of any process or method steps may be altered or reordered based on alternative embodiments. In the claims, any clause relating to "apparatus with a function" is intended to include structures performing said functions described herein, not just structurally equivalent, but also equivalent structures. The design, operation and arrangement of the exemplary embodiments may be subject to other substitutions, modifications, alterations and omissions without departing from the scope of the present invention. Therefore, the present invention is not limited to a specific embodiment, but can be extended to various modifications within the scope of the appended claims.

[0040] Also, in order to concisely describe example embodiments, it is not necessary to describe all of the features of an actual embodiment (i.e., those features that are not relevant to the best mode of carrying out the invention currently contemplated, or those features that are not relevant to the implementation of the invention).

[0041] As can be appreciated, many specific embodiment decisions may be made during the development of any practical embodiment, e.g., at any step or design stage. While such a development effort may be cumbersome and time-consuming, for those of ordinary skill in the art having the benefit of this disclosure, such an development effort will nevertheless be a routine undertaking of design, fabrication, and production that does not require undue experimentation.

[0042] It should be noted that the above embodiments are only for illustrating the technical solutions of the present invention, rather than for limiting the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art can understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope thereof, all of which shall be included in the scope of the registered claims of this utility model. [Explanation of symbols]

[0043] 100, circulation box; 101, oil discharge pipe; 102, oil pump; 103, oil supply pipe; 200, cooling assembly; 201, refrigeration pipe; 202, guide pipe; 203, inner box; 204, equalizing member; 204a, housing; 204b, motor; 204c, rotating shaft; 204e, first stirring blade; 204f, second stirring blade; 300, cleaning assembly; 301, filter; 302, cleaning member; 302a, movable rod; 302a-1 , extension plate; 302a-2, slide bush; 302b, cleaning brush; 302c, slide rod; 303, driving member; 303a, speed change gear; 303b, driving gear; 303c, rotating disk; 303d, rotating rod; 303d-1, bump; 303e, grooved plate; 303e-1, connecting rod; 303f, fan-tooth plate; 304, collection chamber; 304a, collection case; 304b, magnet plate; 304c, cover plate; 304d, support rod.

Claims

1. a circulation box (100) having an oil discharge pipe (101) attached to one side thereof and communicating with an oil discharge port of a gear box, an oil pump (102) attached to the uppermost end thereof, and an oil supply pipe (103) connected to an outlet end of the oil pump (102) and communicating with an oil supply port of the gear box; a cooling assembly (200) including a refrigeration tube (201) and a guide tube (202) mounted in a circulation box (100), an inner box (203) fixedly connected in the circulation box (100), and an equalizing member (204) provided in the circulation box (100), both ends of the guide tube (202) respectively communicating with an oil pump (102) and the inner box (203), and the inside of the circulation box (100) being filled with a cooling liquid; A lubricating oil filtering and cooling device for a gear box for a wind power generator, comprising: a filter (301) fixedly connected in an internal box (203); a cleaning member (302) provided above the filter (301); and a driving member (303) movably connected to a circulation box (100), the driving member (303) being connected to be coupled to the cleaning member (302) and the equalizing member (204), respectively.

2. The lubricating oil filtering and cooling device for a gearbox for a wind power generator according to claim 1, characterized in that the homogenizing member (204) includes a housing (204a) fixedly connected to one side of the circulation box (100), a motor (204b) fixedly connected to the inner wall of the housing (204a), and a rotating shaft (204c) fixedly connected to the output shaft of the motor (204b), and a first stirring blade (204e) and a second stirring blade (204f) are fixedly connected to the outer periphery of the rotating shaft (204c).

3. The cleaning member (302) includes a movable rod (302a), a cleaning brush (302b) fixedly connected to one side of the movable rod (302a), and a slide rod (302c) fixedly connected to the inner wall of the internal box (203), and an end of the cleaning brush (302b) separated from the movable rod (302a) is slidably fitted to the outer periphery of the slide rod (302c), a slide bush (302a-2) is fixedly connected to the inner wall of the internal box (203), and the movable rod (302a) is slidably connected to the slide bush (302a-2). The lubricating oil filtering and cooling device for a gear box for a wind power generator according to claim 2,

4. The lubricating oil filtering and cooling device for a gearbox for a wind power generator according to claim 3, characterized in that the driving member (303) includes a speed change gear (303a) rotatably connected to one side of the circulation box (100), a driving gear (303b) fixedly connected to an output shaft of a motor (204b), and a rotating disk (303c) provided on one side of the speed change gear (303a), the driving gear (303b) being connected to be meshed with the speed change gear (303a), and the rotating disk (303c) being connected to be meshed with the speed change gear (303a).

5. The lubricating oil filtering and cooling device for a gearbox for a wind power generator according to claim 4, characterized in that the driving member (303) further includes a rotating rod (303d) fixedly connected to the center of the rotating disk (303c), a grooved plate (303e) moving together with the rotating rod (303d), and a sector-tooth plate (303f) fixedly connected to the uppermost end of the grooved plate (303e), the rotating rod (303d) being rotatably connected to the inner box (203), and the rotating rod (303d), the grooved plate (303e) and the sector-tooth plate (303f) being all located within the inner box (203).

6. The lubricating oil filtering and cooling device for a gearbox for a wind power generator according to claim 5, characterized in that a connecting rod (303e-1) is fixedly connected to a side of the grooved plate (303e), the connecting rod (303e-1) is rotatably connected to an inner wall of the inner box (203), and a bump (303d-1) is provided on one side of the rotating rod (303d), the bump (303d-1) is located in a hollow groove of the grooved plate (303e) and fits with the grooved plate (303e).

7. The lubricating oil filtering and cooling device for a gearbox for a wind power generator according to claim 6, characterized in that an extension plate (302a-1) is fixedly connected to the bottom end of the movable rod (302a), a tooth groove is opened at the bottom end of the extension plate (302a-1), and the extension plate (302a-1) is connected to be meshed with a sector tooth plate (303f) via the tooth groove.

8. The lubricating oil filtering and cooling device for a gearbox for a wind power generator according to claim 7, characterized in that the cleaning assembly (300) further includes a collection chamber (304) provided on the side and below the filter (301), a collection case (304a) is connected to the inside of the collection chamber (304) so ​​as to be engaged therewith, and a magnet plate (304b) is inserted into the inside of the collection case (304a).

9. The lubricating oil filtering and cooling device for a gearbox for a wind power generator according to claim 8, characterized in that a cover plate (304c) is provided above the collection case (304a), a support rod (304d) is fixedly connected between the cover plate (304c) and the collection case (304a), and the cover plate (304c) is fixedly connected to the top end of the circulation box (100).

10. The lubricating oil filtering and cooling device for a gearbox for a wind power generator according to claim 3, characterized in that the rotating disk (303c) is rotatably connected to the circulation box (100), and the rotating disk (303c), the driving gear (303b) and the speed change gear (303a) are all located in the internal cavity of the housing (204a).

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