Automatic cleaning device and cleaning method for oil-cooled radiator of wind turbine

Abstract

The present invention relates to the technical field of power generation auxiliary equipment, and provides an automatic cleaning device and cleaning method for an oil-cooled radiator of a wind turbine, comprising a detection device and a cleaning device; the detection device comprises at least one light source emitting end and a light source receiving end arranged on the side of the filter, and at least one reflecting device arranged on the side of the filter, the light emitted by the light source emitting end is received by the light source receiving end through the reflecting device, the cleaning device is driven to clean the filter according to the intensity of the light received by the light source receiving end, and the light emitted by the light source emitting end passes through the filter arrangement, the present invention automatically cleans the catkins on the filter, reduces the work intensity of maintenance personnel, and increases the service life of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation auxiliary equipment, and in particular to an automatic cleaning device and a cleaning method for an oil-cooled radiator of a wind turbine. Background Art

[0002] A filter is provided on the shell of the wind turbine oil cooling radiator, and a frame is provided around the filter. The filter is easily clogged by catkins in spring, resulting in poor heat dissipation of the gearbox oil, which can easily cause problems such as limited power operation and fault reporting of the unit. When a problem occurs, maintenance personnel can only know it through the equipment fault report. When they know it, the equipment has already suffered certain damage. Subsequently, at least two maintenance personnel are required each time to bring their own clean water to carry out cleaning work, which is time-consuming and laborious. Summary of the invention

[0003] The object of the present invention is to provide an automatic cleaning device and a cleaning method for an oil-cooled radiator of a wind turbine, so as to solve the above-mentioned problem.

[0004] The embodiment of the present invention is realized through the following technical scheme: an automatic cleaning device for a wind turbine oil-cooled radiator is arranged on a filter of the oil-cooled radiator, and a frame is provided around the filter, including a detection device and a cleaning device; the detection device includes at least one light source emitting end and a light source receiving end arranged on the side of the filter, and at least one reflecting device arranged on the side of the filter, the light emitted by the light source emitting end is received by the light source receiving end through the reflecting device, and the cleaning device is driven to clean the filter according to the intensity of the light received by the light source receiving end, and the light emitted by the light source emitting end passes through the filter.

[0005] Furthermore, it includes: a light source emitting end and a light source receiving end arranged on the same side of the filter; a reflecting device arranged on the side of the filter, and the reflecting device and the light source emitting end are respectively arranged on both sides of the filter.

[0006] Furthermore, the reflecting device is arranged between the light source emitting end and the light source receiving end.

[0007] Furthermore, the cleaning device includes: a transmission component, the transmission component includes a servo motor and a parallel screw rod and a sliding rod, the servo motor is controlled by the light source receiving end, and the servo motor drives the screw rod to rotate; a cleaning component, the cleaning component includes a main body and a brush, the main body is provided with a threaded hole and a first through hole, the threaded hole and the screw rod are matched, and the sliding rod is arranged in the first through hole; the brush is detachably arranged on the main body and is arranged close to the filter screen; the power supply component is used to supply power.

[0008] Furthermore, the brush includes a left brush and a right brush, and also includes: a transmission shaft, one end of the transmission shaft is fixedly connected to the body; a left brush bracket and a right brush bracket, one end of the left brush bracket is hinged to the transmission shaft, and the left brush is fixedly connected to the left brush bracket through a first connecting rod; one end of the right brush bracket is hinged to the transmission shaft, and the right brush is fixedly connected to the right brush bracket through a second connecting rod; a third connecting rod and a fourth connecting rod are also provided between the first connecting rod and the second connecting rod, the third connecting rod is fixed to the left brush bracket, and the fourth connecting rod is fixed to the right brush bracket; a tension spring, one end of the tension spring is fixedly connected to the third connecting rod, and the other end of the tension spring is fixedly connected to the fourth connecting rod Rod, and the tension spring is located between the brush and the left brush bracket; the main body is also provided with a first slide groove and a second slide groove parallel to the first through hole, a first lever is provided in the first slide groove, and a first limit column and a second limit column are provided on the first lever, and the ends of the first limit column and the second limit column extend out of the first slide groove and are arranged on both sides of the left brush bracket, a second lever is provided in the second slide groove, and a third limit column and a fourth limit column are provided on the second lever, and the ends of the third limit column and the fourth limit column extend out of the second slide groove and are arranged on both sides of the right brush bracket, the length of the first lever is greater than the length of the first slide groove, and the length of the second lever is greater than the length of the second slide groove.

[0009] Furthermore, the first slide groove is provided with a first limit plate for preventing the first lever from falling, and the first limit plate is arranged at the opening of the first slide groove; the second slide groove is provided with a second limit plate for preventing the second lever from falling, and the second limit plate is arranged at the opening of the second slide groove.

[0010] Furthermore, when the left brush holder is limited by the first limiting column and the second limiting column, one end of the first lever is set in the first slide groove, and the other end of the first lever is set outside the first slide groove; when the right brush holder is limited by the third limiting column and the fourth limiting column, one end of the second lever is set in the second slide groove, and the other end of the second lever is set outside the second slide groove.

[0011] A method for automatically cleaning a wind turbine oil-cooled radiator comprises the following steps:

[0012] S1: Arrange the light source transmitting end and the light source receiving end according to where the filter is attached with the most obstacles, so that the light can pass through the place with the most obstacles;

[0013] S2: The filter is cleaned by controlling the cleaning device through the receiving numerical value at the light source receiving end.

[0014] The technical solution of the present invention has at least the following advantages and beneficial effects: a light beam that passes through the filter screen multiple times is constructed through a light source generating end, a light source receiving end and a reflecting device. Each time the light beam passes through the filter screen, if it encounters certain catkins attachments, the light beam will be blocked, resulting in a reduction in the light beam's ability to pass through the filter screen. Then, the light energy received by the light source receiving end is relatively small. Therefore, according to the change in the numerical value, it can be known that there are more catkins attachments on the filter screen. Then, the cleaning device can be controlled to clean the filter screen. During this process, maintenance personnel are not required to perform the operation, nor is it necessary for the equipment to report a fault in order to know that there is a problem with the heat dissipation. This greatly improves the service life and safety of the equipment and reduces the work pressure of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of the first structure of the automatic cleaning device for the oil-cooling radiator of a wind turbine provided by the present invention;

[0017] Figure 2 A second structural schematic diagram of the automatic cleaning device for the wind turbine oil cooling radiator provided by the present invention;

[0018] Figure 3 A schematic diagram of the bottom structure of a second structure of the automatic cleaning device for the oil-cooling radiator of a wind turbine provided by the present invention;

[0019] Figure 4 A schematic diagram of a first state of a partial structure of a cleaning component in another structure of an automatic cleaning device for an oil-cooled radiator of a wind turbine provided by the present invention;

[0020] Figure 5 A schematic diagram of a second state of a partial structure of a cleaning component in another structure of an automatic cleaning device for an oil-cooled radiator of a wind turbine provided by the present invention;

[0021] Figure 6 A schematic diagram of the side structure of a cleaning assembly in another structure of the automatic cleaning device for the oil-cooling radiator of a wind turbine provided by the present invention;

[0022] Figure 7 A schematic diagram of the structure of a first limit plate in a cleaning assembly in another structure of the automatic cleaning device for an oil-cooled radiator of a wind turbine provided by the present invention;

[0023] Icons: 1-light source transmitting end, 2-light source receiving end, 3-reflecting device, 4-servo motor, 5-cleaning component, 100-filter, 110-frame, 51-body, 521-first lever, 522-second lever, 531-left brush holder, 532-right brush holder, 541-left brush, 542-right brush, 55-tension spring, 56-transmission shaft, 571-first connecting rod, 572-second connecting rod, 581-third connecting rod, 582-fourth connecting rod, 591-first limiting column, 593-second limiting column, 592-third limiting column, 594-fourth limiting column, 61-threaded hole, 62-first slide groove, 63-second slide groove, 64-first through hole, 65-slide rod, 66-screw rod, 71-first limiting plate, 75-second limiting plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example

[0027] like Figure 1,2, an automatic cleaning device for an oil-cooled radiator of a wind turbine is arranged on a filter 100 of the oil-cooled radiator, and a frame 110 is arranged around the filter 100. Specifically, the device includes a detection device and a cleaning device; the detection device includes at least one light source emitting end 1 and a light source receiving end 2 arranged on the side of the filter 100, and at least one reflecting device 3 arranged on the side of the filter 100. The light emitted by the light source emitting end 1 is received by the light source receiving end 2 through the reflecting device 3. The cleaning device is driven to clean the filter 100 according to the intensity of the light received by the light source receiving end 2, and the light emitted by the light source emitting end 1 passes through the filter 100; End 1, light source receiving end 2 and reflecting device 3 are used to construct a light beam that passes through the filter 100 multiple times. Each time the light beam passes through the filter 100, if it encounters certain catkins attachments, it will block the light beam, resulting in a reduction in the light beam's energy. Then, the light energy received by the light source receiving end 2 is relatively small. Therefore, according to the change in the numerical value, it can be known that there are more catkins attachments on the filter 100. Then the cleaning device is controlled to clean the filter 100. In this process, maintenance personnel are not required to perform the operation, nor is it necessary for the equipment to report a fault in order to know that there is a problem with the heat dissipation. This greatly improves the service life and safety of the equipment and reduces the work pressure of maintenance personnel.

[0028] It should be noted that when constructing the light source transmitting end 1 and the light source receiving end 2, it is sufficient as long as the light between the light source transmitting end 1 and the light source receiving end 2 can pass through the maximum catkin attachment area of ​​the filter 100, for example, Figure 1 As shown, a plurality of reflective devices 3 are distributed on both sides of the filter 100 to construct a light beam with a greater number of emission times on the filter 100. In addition, the reflective device 3 can be directly mounted on the frame 110. In this embodiment, as shown in FIG. Figure 2As shown, a light source emitting end 1 and a light source receiving end 2 are arranged on the same side of the filter 100; a reflecting device 3 is arranged on the side of the filter 100, and the reflecting device 3 and the light source emitting end 1 are respectively arranged on both sides of the filter 100, and the reflecting device 3 is arranged in the middle of the light source emitting end 1 and the light source receiving end 2; the light is set by a light source emitting end 1, a light source receiving end 2 and a reflecting device 3. Specifically, the light can pass through the filter 100 twice, and the weakening of the light is detected through these two times and then passed through the light receiver. After being detected, the cleaning device is controlled to clean the filter 100. It should be noted that the working principle of the light receiving end is similar to that of a smoke alarm. Specifically, the infrared light beam of the infrared emitting tube is scattered by smoke particles, and the intensity of the scattered light is proportional to the concentration of the smoke, so the intensity of the infrared light beam received by the photosensitive tube will change, converted into an electrical signal, and finally converted into an alarm signal. If the main light receiver receives light that is not so strong, the cleaning device will be driven to clean continuously until the cleaning is completed and the light receiving end receives enough light to stop. In addition, there is no restriction on the cleaning device here, such as using a fan to blow air on the filter 100.

[0029] In this embodiment, the cleaning device is configured as follows: Figure 3-5 As shown, the cleaning device includes: a transmission component and a cleaning component 5 , the transmission component is used to control the movement of the cleaning component 5 , and the cleaning component 5 is used to clean the filter 100 .

[0030] Furthermore, the transmission component includes a servo motor 4 fixedly arranged on the frame 110 and a screw rod 66 and a slide rod 65 arranged in parallel and arranged on the frame 110. The servo motor 4 is controlled by the light source receiving end 2, and the servo motor 4 drives the screw rod 66 to rotate. The screw rod 66 and the frame 110 are connected by a bearing; the cleaning component 5 includes a main body 51 and a brush, and the main body 51 is provided with a threaded hole 61 and a first through hole 64. The threaded hole 61 and the screw rod 66 are matched, and the slide rod 65 is arranged in the first through hole 64; the brush is detachably arranged on the main body 51 and is arranged close to the filter screen 100; a power supply component is used to supply power; when work is needed, after the light source receiving end 2 detects the presence of catkins attached, the servo The servo motor 4 is started, and then the servo motor 4 rotates forward to drive the screw rod 66 to rotate. With the cooperation of the screw rod 66 and the sliding rod 65, the main body 51 slides along the direction of the screw rod 66, and then the main body 51 drives the brush to clean the filter 100; when the servo motor 4 reverses, it drives the screw rod 66 to reverse, and at this time the main body 51 moves in the opposite direction. Here, the forward and reverse rotation of the servo motor 4 is set in advance through the program. It should be noted that this program can also be implemented using existing technology. In addition, in order to facilitate the execution of the program, a single-chip microcomputer can also be set separately. However, it should be noted that a single-chip microcomputer will be integrated in some light receiving modules. If it is integrated, there is no need to add a separate single-chip microcomputer.

[0031] Furthermore, in this embodiment, the following structure is also adopted to solve the problem: Figure 3-7 As shown, the brush can only brush the catkins at one angle. Generally, catkins are in the form of flocs and are long strips. If you only brush them in one direction, the catkins cannot be cleaned off and will get hung on the filter 100. Therefore, in this embodiment, the following settings are used to achieve cleaning at two angles, thereby improving the efficiency of catkin cleaning.

[0032] Specifically, the brush includes a left brush 541 and a right brush 542, and also includes: a transmission shaft 56, a left brush bracket 531 and a right brush bracket 532 and a tension spring 55,

[0033] One end of the transmission shaft 56 is fixedly connected to the body 51;

[0034] like Figure 3, as shown in FIG. 7 , one end of the left brush holder 531 is hingedly connected to the transmission shaft 56, and the left brush 541 is fixedly connected to the left brush holder 531 through a first connecting rod 571, and the left brush 541 can swing back and forth along the transmission shaft 56 with the left brush holder 531; one end of the right brush holder 532 is hingedly connected to the transmission shaft 56, and the right brush 542 is fixedly connected to the right brush holder 532 through a second connecting rod 572, and the right brush 542 can swing back and forth along the transmission shaft 56 with the right brush holder 532 The first connecting rod 571 and the second connecting rod 572 are also provided with a third connecting rod 581 and a fourth connecting rod 582, the third connecting rod 581 is fixed to the left brush bracket 531, and the fourth connecting rod 582 is fixed to the right brush bracket 532; one end of the tension spring 55 is fixedly connected to the third connecting rod 581, and the other end of the tension spring 55 is fixedly connected to the fourth connecting rod 582, and the tension spring 55 is located between the brush and the left brush bracket 531; the body 51 is also provided with a third connecting rod 581 parallel to the third connecting rod 581 and the fourth connecting rod 582; The first slide groove 62 and the second slide groove 63 of the through hole 64 are provided with a first lever 521 in the first slide groove 62, and the first lever 521 is provided with a first limiting column 591 and a second limiting column 593. The ends of the first limiting column 591 and the second limiting column 593 extend out of the first slide groove 62 and are arranged on both sides of the left brush bracket 531. That is to say, the left brush bracket 531 can be blocked or moved by the first limiting column 591 and the second limiting column 593; the second slide groove 63 is provided with a second limiting column 591 and a second limiting column 593. Rod 522, the second lever 522 is provided with a third limiting column 592 and a fourth limiting column 594, the ends of the third limiting column 592 and the fourth limiting column 594 extend out of the second slide groove 63 arranged on both sides of the right brush bracket 532, that is to say, the left brush bracket 531 can be blocked or moved by the third limiting column 592 and the fourth limiting column 594; the length of the first lever 521 is greater than the length of the first slide groove 62, and the length of the second lever 522 is greater than the length of the second slide groove 63.

[0035] The whole working process is as follows: when the light source receiving end 2 receives light and detects a large amount of catkins attached to the filter 100, the servo motor 4 starts to rotate forward and reverse periodically, driving the body 51 to reciprocate along the axial direction of the screw 66, and during the movement, the brush is driven to move, thereby cleaning the filter 100. In this process, Figure 4 As shown, along the direction of the screw rod 66, the shortest distance between the first lever 521 and the second lever 522 and the frame 110 is shorter than the shortest distance between the left brush holder 531 and the right brush holder 532 and the frame 110, and when the body 51 drives the left brush holder 531 and the right brush holder 532 to move, the first lever 521 and the second lever 522 also move with the body 51, as shown in FIG. Figure 4As shown, the body 51 moves upward, and when it is about to move to the frame 110, the first lever 521 and the second lever 522 contact the frame 110, and then the left brush holder 531 and the right brush holder 532 are pushed by the first limiting column 591, the second limiting column 593, the third limiting column 592 and the fourth limiting column 594. Due to the existence of the tension spring 55, only when the tension spring 55 moves over the transmission shaft 56, as shown in FIG. Figure 4-5 As shown, the "V" shape formed by the left brush holder 531 and the right brush holder 532 is changed into an "A" shape, realizing the change of angle. Similarly, when the body 51 moves to the lower frame 110, "A" becomes "V", which is completely controlled by the right servo motor 4. It should be emphasized that the length of the first lever 521 and the second lever 522 extending out of the first slide groove 62 and the second slide groove 63 is greater than the distance between the tension spring 55 and the transmission shaft 56, ensuring that the tension spring 55 can be driven to move to a suitable position. At the same time, the role of the tension spring 55 here is also to ensure the relative stability between the left brush holder 531 and the right brush holder 532, ensuring that it can achieve the maintenance of the "A" or "V" structure. In addition, it should be emphasized that in the filter 100, for the swing of the left brush holder 531 and the swing of the right brush holder 532, there will be a certain curvature at the edge, so if there are frames 110 at the left and right ends of the filter 100, then the frame 110 is far from the left brush holder 531 and the right brush holder. 532 should be provided with enough free space to satisfy its swing. In addition, the first slide groove 62 is provided with a first limiting plate 71 for preventing the first lever 521 from falling, and the first limiting plate 71 is arranged at the opening of the first slide groove 62; the second slide groove 63 is provided with a second limiting plate 75 for preventing the second lever 522 from falling, and the second limiting plate 75 is arranged at the opening of the second slide groove 63; the first limiting plate 71 and the second limiting plate 75 are used to prevent the first lever 521 and the second lever 522 from falling from the first slide groove 63. The left brush holder 531 falls into the slide groove 62 and the second slide groove 63; in addition, when the left brush holder 531 is limited by the first limiting column 591 and the second limiting column 593, one end of the first lever 521 is arranged in the first slide groove 62, and the other end of the first lever 521 is arranged outside the first slide groove 62; when the right brush holder 532 is limited by the third limiting column 592 and the fourth limiting column 594, one end of the second lever 522 is arranged in the second slide groove 63, and the other end of the second lever 522 is arranged outside the second slide groove 63.

[0036] In this embodiment, there is also a method for automatically cleaning a wind turbine oil cooling radiator, comprising the following steps:

[0037] S1: Arrange the light source transmitting end 1 and the light source receiving end 2 according to the place where the filter 100 is attached with the most obstacles, so that the light passes through the place with the most obstacles;

[0038] S2: The light source receiving end 2 controls the cleaning device to clean the filter 100 through the received numerical value.

[0039] Finally, it should be emphasized that, in this embodiment, the main invention is explained in detail, and existing technologies are used for some non-inventive points, such as: the selection of the brush, a steel brush can be used for cleaning; the selection of the light source transmitting end and the light source receiving end, the common ones on the market can be used; the reflection device, a plane mirror can be used, and so on.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic cleaning device for an oil-cooled radiator of a wind turbine, arranged on a filter screen (100) of the oil-cooled radiator, wherein a frame (110) is arranged around the filter screen (100), and characterized in that: It includes a detection device and a cleaning device; the detection device includes at least one light source emitting end (1) and a light source receiving end (2) arranged on the side of the filter (100), at least one reflecting device (3) arranged on the side of the filter (100), The light emitted by the light source emitting end (1) is received by the light source receiving end (2) through the reflecting device (3), and the cleaning device is driven to clean the filter (100) according to the intensity of the light received by the light source receiving end (2), and the light emitted by the light source emitting end (1) passes through the filter (100); include: A light source emitting end (1) and a light source receiving end (2) arranged on the same side of the filter (100); A reflecting device (3) arranged on the side of the filter (100), wherein the reflecting device (3) and the light source emitting end (1) are respectively arranged on both sides of the filter (100); The reflecting device (3) is arranged between the light source emitting end (1) and the light source receiving end (2); The cleaning device comprises: A transmission assembly, the transmission assembly comprising a servo motor (4) and a screw rod (66) and a slide rod (65) arranged in parallel, the servo motor (4) being controlled by the light source receiving end (2), and the servo motor (4) driving the screw rod (66) to rotate; A cleaning assembly (5), the cleaning assembly (5) comprising a body (51) and a brush, the body (51) being provided with a threaded hole (61) and a first through hole (64), the threaded hole (61) and the screw rod (66) being arranged in cooperation, the sliding rod (65) being arranged in the first through hole (64); the brush being detachably arranged on the body (51) and being arranged close to the filter screen (100); A power supply component, the power supply component is used to supply power; The brush comprises a left brush (541) and a right brush (542), and further comprises: A transmission shaft (56), one end of which is fixedly connected to the body (51); A left brush bracket (531) and a right brush bracket (532), wherein one end of the left brush bracket (531) is hingedly connected to the transmission shaft (56), and the left brush (541) is fixedly connected to the left brush bracket (531) via a first connecting rod (571); one end of the right brush bracket (532) is hingedly connected to the transmission shaft (56), and the right brush (542) is fixedly connected to the right brush bracket (532) via a second connecting rod (572); a third connecting rod (581) and a fourth connecting rod (582) are further provided between the first connecting rod (571) and the second connecting rod (572), wherein the third connecting rod (581) is fixed to the left brush bracket (531), and the fourth connecting rod (582) is fixed to the right brush bracket (532); a tension spring (55), one end of the tension spring (55) being fixedly connected to the third connecting rod (581), the other end of the tension spring (55) being fixedly connected to the fourth connecting rod (582), and the tension spring (55) being located between the brush and the left brush bracket (531); The body (51) is also provided with a first slide groove (62) and a second slide groove (63) parallel to the first through hole (64). A first lever (521) is disposed in the first slide groove (62), and a first limiting column (591) and a second limiting column (593) are disposed on the first lever (521). The ends of the first limiting column (591) and the second limiting column (593) extend out of the first slide groove (62) and are disposed on both sides of the left brush bracket (531). A second lever (522) is provided in the second slide groove (63), and a third limiting column (592) and a fourth limiting column (594) are provided on the second lever (522). The ends of the third limiting column (592) and the fourth limiting column (594) extend out of the second slide groove (63) and are provided on both sides of the right brush bracket (532). The length of the first lever (521) is greater than the length of the first sliding groove (62), and the length of the second lever (522) is greater than the length of the second sliding groove (63).

2. The automatic cleaning device for wind turbine oil cooling radiator according to claim 1, characterized in that: The first slide groove (62) is provided with a first limiting plate (71) for preventing the first lever (521) from falling, and the first limiting plate (71) is arranged at the opening of the first slide groove (62); the second slide groove (63) is provided with a second limiting plate (75) for preventing the second lever (522) from falling, and the second limiting plate (75) is arranged at the opening of the second slide groove (63).

3. The automatic cleaning device for wind turbine oil cooling radiator according to claim 1, characterized in that: When the left brush support (531) is limited by the first limiting column (591) and the second limiting column (593), one end of the first lever (521) is arranged in the first sliding groove (62), and the other end of the first lever (521) is arranged outside the first sliding groove (62); When the right brush holder (532) is limited by the third limiting column (592) and the fourth limiting column (594), one end of the second lever (522) is arranged in the second slide groove (63), and the other end of the second lever (522) is arranged outside the second slide groove (63).

4. An automatic cleaning method for the automatic cleaning device for the wind turbine oil cooling radiator according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1: arranging the light source emitting end (1) and the light source receiving end (2) at the place where the filter (100) is most obstructed, so that the light passes through the place where the obstruction is most; S2: Controlling the cleaning device to clean the filter (100) through the received numerical value of the light source receiving end (2).

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