Automatic reciprocating cleaning equipment and method for wind power generation blades

Abstract

The invention discloses automatic reciprocating cleaning equipment and method for wind power generation blades, and belongs to the technical field of wind power generation. The automatic reciprocating cleaning equipment comprises a fixed box body, a linear transmission assembly, a lower box body, an angle adjusting assembly, a movable box body, a clamping jaw, a first cleaning plate, a second cleaning plate, a position adjusting assembly and a cleaning assembly; and a first motor is arranged in an inner cavity of the fixed box body. Under the mutual cooperation of the angle adjusting assembly and the electric telescopic rod, the edge of the blade can be kept in the inner concave face of the clamping jaw all the time, the clamping jaw is adjusted according to different positions, and therefore the device is suitable for the blade with radian and width changes, stable supporting force is provided for the device in the cleaning process, and the cleaning efficiency is improved. And the device is prevented from being separated from the blade, the stability of the device during operation is improved, and the device can be suitable for the blade with radian or the blade with rough surface.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to an automatic reciprocating cleaning device and method for wind power generation blades. Background Art

[0002] Wind turbines are a widely used power generation equipment. They use wind turbine blades to convert wind energy into kinetic energy of the blades, and then convert the kinetic energy into electrical energy through some equipment in the generator. Since wind power generation is a more environmentally friendly way of obtaining electricity, it is currently being used more and more widely.

[0003] When a wind turbine is used for a long time, it is usually necessary to clean and maintain the blades to keep the windward surface of the blades smooth. In the prior art, when cleaning is required, the generator is usually shut down first, and then the operator carries cleaning tools to perform high-altitude operations to clean the blades. However, since high-altitude operations are dangerous and the surface area of ​​the blades is huge, the operator has a lot of work to do, the working time is long, the operating efficiency is low, and there are certain risks.

[0004] There are also some devices in the prior art that can realize automatic cleaning of blades. For example, the Chinese patent with authorization announcement number CN117905659A discloses a wind turbine blade cleaning device, pointing out that the surface area of ​​the blade is large and it is an irregular curved surface, which causes great trouble for manual cleaning. The above patent overcomes the problems in the prior art by setting a self-propelled component and an adaptive component. However, the disadvantage of the above patent is that: the patent uses a suction cup to adsorb on the surface of the blade, and the device is moved by a walking mechanism. However, there is a certain instability in the adsorption of the suction cup. When some of the suction cups and the blade surface are not well adsorbed (for example, the curvature of the blade itself causes the suction cup and the blade to not fit completely, and some areas of the blade are worn and the surface is rough, etc.), the device may be detached from the blade. In addition, there is often a large wind force in the high-altitude environment, so there is instability in the adsorption of the suction cup, which causes the device to shake on the blade, which poses a certain risk for high-altitude operations.

[0005] Therefore, we propose an automatic reciprocating cleaning device and method for wind power blades to solve the above problems.

[0006] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to a person of ordinary skill in the art. Summary of the invention

[0007] The purpose of the present invention is to provide an automatic reciprocating cleaning device and method for wind turbine blades to solve the problem of instability in the prior art of using suction cups to adsorb on the curved and rough blade surface.

[0008] To achieve the above-mentioned object, the present invention provides an automatic reciprocating cleaning device for wind power blades, comprising a fixed housing, a linear transmission assembly, a lower housing, an angle adjustment assembly, a movable housing, a clamping claw, a first cleaning plate, a second cleaning plate, a position adjustment assembly and a cleaning assembly;

[0009] A first motor is disposed in the inner cavity of the fixed box, and an output shaft of the first motor is transmission-connected to the lower box through a linear transmission assembly;

[0010] A second motor is disposed in the inner cavity of the lower box body, and an output shaft of the second motor is transmission-connected to the movable box body through an angle adjustment component;

[0011] An electric telescopic rod is arranged in the inner cavity of the movable box, and the clamp is arranged at the output end of the electric telescopic rod;

[0012] The lower box body has an arc-shaped surface, and an arc-shaped groove is formed on the arc-shaped surface. The position adjustment component is slidably installed in the groove of the lower box body, and the first cleaning plate and the second cleaning plate are arranged on the position adjustment component.

[0013] A third motor is disposed in the lower box, and an output shaft of the third motor is transmission-connected to the first cleaning plate and the second cleaning plate through a position adjustment component;

[0014] The cleaning assembly is elastically connected to the first cleaning plate and the second cleaning plate;

[0015] The first cleaning plate and the second cleaning plate are also provided with spray pipes.

[0016] Preferably, the linear transmission assembly includes a winding wheel, a pull rope and a pulley;

[0017] The winding wheel is arranged in the inner cavity of the fixed box and is fixed to the output shaft of the first motor;

[0018] The pull rope is wound around the reel;

[0019] The pulley is rotatably connected in the inner cavity of the lower box body, and the bottom end of the pull rope penetrates into the inner cavity of the lower box body and is wound around the pulley.

[0020] Preferably, the angle adjustment assembly is provided with at least four groups, which are respectively located at the four corners of the lower box body, the number of the movable boxes is the same as the number of the angle adjustment assemblies, and the angle adjustment assembly includes a first rotating shaft, a first gear and a transmission rod;

[0021] Each of the angle adjustment assemblies has two transmission rods, and the transmission rods are rotatably connected to the lower box body via a first rotation shaft;

[0022] One of the first rotating shafts in each group of angle adjustment components is drivingly connected to the output shaft of the second motor via a first gear;

[0023] Each movable box is rotatably connected to the ends of two transmission rods in each set of angle adjustment components.

[0024] Preferably, the position adjustment assembly comprises arc-shaped plates, the number of which is the same as the grooves of the lower box, and each arc-shaped plate is slidably mounted in the groove of the lower box;

[0025] The position adjustment assembly also includes a second rotating shaft;

[0026] The second rotating shaft is rotatably connected to the lower box body through a mounting seat;

[0027] The second rotating shaft is drivingly connected to the arc plate, and the second rotating shaft is drivingly connected to the output shaft of the third motor through a third gear;

[0028] The first cleaning plate and the second cleaning plate are respectively mounted on different arc-shaped plates.

[0029] Preferably, the arc-shaped plate comprises an arc-shaped convex plate, the shape of which is adapted to the shape of the groove of the lower box body;

[0030] The arc-shaped convex plate is provided with a connecting plate, which passes through the groove provided in the lower box body and is fixed to the first cleaning plate or the second cleaning plate;

[0031] The arc-shaped convex plate is also provided with teeth;

[0032] The second rotating shaft is also provided with a second gear, and the second gear is meshed with the meshing teeth.

[0033] Preferably, the cleaning assembly includes a cleaning roller, a connecting column and a sliding block;

[0034] The connecting posts are fixed on the first cleaning plate and the second cleaning plate, and are located at both ends and distributed at intervals;

[0035] The sliding block is slidably mounted on the connecting column;

[0036] The cleaning roller is rotatably connected between the connecting posts at both ends;

[0037] A spring is also provided on the connecting column, and two ends of the spring are respectively fixed to one end of the connecting column facing the lower box body and the sliding block.

[0038] Preferably, the grooves formed in the lower box body face opposite directions, and two groups of the third motors are provided to drive the arc-shaped convex plates in the grooves formed in the lower box body to move in the extending directions of the grooves.

[0039] Preferably, the inner concave surface of the clamping jaw is provided with a soft gasket;

[0040] A method for using an automatic reciprocating cleaning device for wind power generation blades, applied to an automatic reciprocating cleaning device for wind power generation blades, comprises the following steps:

[0041] Control the wind turbine to stop and keep the blades to be cleaned in a vertical state;

[0042] The clamping jaws are mounted on both sides of the blade to be cleaned, and the cleaning assembly contacts the blade surface of the blade to be cleaned;

[0043] The lower box is lowered by the first motor until the lower box reaches the end of the blade to be cleaned, and the surface of the blade to be cleaned is washed by the spray pipe during the lowering of the lower box, and the third motor drives the cleaning component to clean the blade surface through the position adjustment component;

[0044] The lower box body is driven to rise by the reverse rotation of the output shaft of the first motor until the lower box body is completely reset, and during the rising process of the lower box body, the third motor drives the cleaning component to clean the blade surface through the position adjustment component.

[0045] Preferably, the lower box body moves downward and upward in an intermittent manner.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] (1) The first motor of the present invention can control the lifting and lowering of the lower box body and realize the positioning of the lower box body through the transmission action of the linear transmission component. At the same time, with the cooperation of the angle adjustment component and the electric telescopic rod, the edge of the blade can be kept in the inner concave surface of the clamping jaw at all times, and the clamping jaw can be adjusted according to different positions, so that the device is suitable for blades with curvature and width changes, and provides a stable supporting force for the device during the cleaning process to prevent the device from detaching from the blade, thereby improving the stability of the device during operation. It is applicable to blades with curvature or rough surfaces.

[0048] (2) The present invention cleans the blade surface by elastically connecting the cleaning assembly to the first cleaning plate and the second cleaning plate. During the cleaning process, the cleaning roller is always in contact with the blade surface under the action of the spring, so it can be applied to blade surfaces with curvature.

[0049] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 A top view of the interior of the fixed housing of the present invention;

[0052] Figure 3 is a cross-sectional view of the lower box body of the present invention;

[0053] Figure 4 It is a schematic structural diagram of the lower box, the angle adjustment assembly and the cleaning assembly of the present invention;

[0054] Figure 5 for Figure 4 A magnified view of the structure at center A;

[0055] Figure 6 for Figure 4 A schematic diagram of the structure from another perspective after hiding the cleaning components;

[0056] Figure 7 for Figure 6 A magnified view of the structure at C in the middle;

[0057] Figure 8 It is a structural schematic diagram of the lower box body and the position adjustment assembly of the present invention;

[0058] Fig. 9 It is a structural schematic diagram of the curved plate of the present invention;

[0059] Fig.10 for Figure 4 A magnified view of the structure at point B.

[0060] In the figure: 1, fixed box; 2, first motor; 3, linear transmission assembly; 4, lower box; 5, second motor; 6, angle adjustment assembly; 7, movable box; 8, electric telescopic rod; 9, clamping claw; 10, first cleaning plate; 11, second cleaning plate; 12, third motor; 13, position adjustment assembly; 14, cleaning assembly; 15, spray pipe; 16, soft gasket;

[0061] 301, reel; 302, pull rope; 303, pulley;

[0062] 601, first rotating shaft; 602, first gear; 603, transmission rod;

[0063] 1301, arc plate; 1302, second rotating shaft; 1303, second gear; 1304, third gear; 1305, mounting seat;

[0064] 13011, arc-shaped convex plate; 13012, connecting plate; 13013, teeth;

[0065] 1401, cleaning roller; 1402, connecting column; 1403, slider; 1404, spring. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. It should be pointed out that the drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the figures, the relative sizes and proportions of the parts shown in the figures are exaggerated or reduced in size, and any size is only exemplary and not restrictive.

[0067] See also Figure 1-Figure 2 , an automatic reciprocating cleaning device for wind power blades, comprising: a fixed box 1, a linear transmission component 3, a lower box 4, an angle adjustment component 6, a movable box 7, a clamping claw 9, a first cleaning plate 10, a second cleaning plate 11, a position adjustment component 13 and a cleaning component 14; a first motor 2 is fixedly installed in the inner cavity of the fixed box 1, and the output shaft of the first motor 2 is connected to the lower box 4 through the linear transmission component 3; a second motor 5 is fixedly installed in the inner cavity of the lower box 4, and the output shaft of the second motor 5 is connected to the movable box 7 through the angle adjustment component 6; an electric extension is fixedly installed in the inner cavity of the movable box 7 The retractable rod 8 and the clamping claw 9 are arranged at the output end of the electric telescopic rod 8; the lower box body 4 has an arc-shaped surface, and an arc-shaped groove is opened at the arc-shaped surface. The position adjustment component 13 is slidably installed in the groove of the lower box body 4, and the first cleaning plate 10 and the second cleaning plate 11 are arranged on the position adjustment component 13; a third motor 12 is arranged in the lower box body 4, and the output shaft of the third motor 12 is transmission-connected with the first cleaning plate 10 and the second cleaning plate 11 through the position adjustment component 13; the cleaning component 14 is elastically connected to the first cleaning plate 10 and the second cleaning plate 11; a spray pipe 15 is also arranged on the first cleaning plate 10 and the second cleaning plate 11.

[0068] By adopting the above technical solution, when in use, a fixed box body 1 is installed on the tower top of the wind turbine, and the edge of the wind turbine blade is inserted into the clamping jaw 9 through the cooperation of the angle adjustment component 6 and the clamping jaw 9, and there is a certain amount of movable space. When in use, the first motor 2 works, and the lower box body 4 is gradually lowered through the linear transmission component 3. During the lowering process, according to the known curvature and width of the blade at different positions, the position of the clamping jaw 9 is gradually adjusted through the angle adjustment component 6 and the electric telescopic rod 8, so that the blade is always located in the clamping jaw 9, and one of the side surfaces of the clamping jaw 9 is in contact with the blade, and the pressure is relatively small. , to avoid damage to the blades during the sliding process of the device. After the device reaches the cleaning position, the pressure on one side of the blade and the clamp 9 is increased by adjusting the angle adjustment component 6 and the electric telescopic rod 8. Under the action of the clamp 9 and the linear transmission component 3, the device can be stably attached to the surface of the blade, and the cleaning liquid is sprayed through the spray pipe 15. The cleaning component 14 is used to clean the point to be cleaned. After the cleaning is completed there, the device is lowered in the same way to clean other positions to be cleaned. After one cleaning is completed, the first motor 2 drives the lower box 4 to be retracted through the linear transmission component 3.

[0069] The advantages of the above technical solution are: it can adapt to the width and curvature of the blades at different positions, and can move back and forth to achieve multiple cleanings, and the edge of the blade is always in the clamp 9. Under the action of the clamp 9 and the linear transmission assembly 3, a relatively stable path is provided for the descending process of the lower box 4, and a stable support force is provided for the cleaning operation of the first cleaning plate 10 and the second cleaning plate 11 to avoid detachment from the blades. At the same time, the problem of unstable adsorption in the adsorption structure of the prior art is avoided, and good results are also achieved when operating under high altitude conditions.

[0070] See also Figure 1-Figure 3 The linear transmission assembly 3 includes a winding wheel 301, a pull rope 302 and a pulley 303; the winding wheel 301 is arranged in the inner cavity of the fixed box 1 and is fixed to the output shaft of the first motor 2; the pull rope 302 is wound around the winding wheel 301; the pulley 303 is rotatably connected to the inner cavity of the lower box 4, and the bottom end of the pull rope 302 penetrates into the inner cavity of the lower box 4 and is wound around the pulley 303.

[0071] By adopting the above technical scheme, when the first motor 2 is working, the lower box 4 can be raised and lowered, and the fixed box 1 can be fixedly installed on the top of the tower of the wind turbine. When the box 4 is lowered, the first motor 2 is working, and the lower box 4 slides downward on the surface of the blade under the action of gravity. The technical scheme of retracting the pull rope 302 can avoid installing a device for walking on the surface of the blade on the lower box 4 itself, so as to reduce the weight of the lower box 4 itself. At the same time, the cooperation between the pull rope 302 and the clamp 9 can make the position of the lower box 4 easier to control. When the lower box 4 is lowered and pulled up, it is achieved by the pull rope 302. In this process, the clamp 9 provides a limiting effect for the lower box 4 to prevent the device from detaching from the blade surface. When the lower box 4 moves to the position to be cleaned, through the action of the angle adjustment component 6 and the electric telescopic rod 8, one side of the clamp 9 is in contact with the blade and provides appropriate pressure. The friction resistance provided by the pressure and the pulling force of the pull rope 302 can keep the device in contact with the blade surface and no longer move. At this time, the cleaning work can be carried out stably.

[0072] See also Figure 1-Figure 5 , the angle adjustment assembly 6 is provided with at least four groups, which are respectively located at the four corners of the lower box body 4. The number of movable boxes 7 is the same as the number of angle adjustment assemblies 6. The angle adjustment assembly 6 includes a first rotating shaft 601, a first gear 602 and a transmission rod 603; each group of the angle adjustment assembly 6 has two transmission rods 603, and the transmission rod 603 is rotatably connected to the lower box body 4 through the first rotating shaft 601; one of the first rotating shafts 601 in each group of the angle adjustment assembly 6 is transmission-connected to the output shaft of the second motor 5 through the first gear 602; each movable box body 7 is rotationally connected to the ends of the two transmission rods 603 in each group of the angle adjustment assembly 6.

[0073] By adopting the above technical solution, the first rotating shaft 601 can be driven to rotate by the second motor 5, so as to realize the movement of the transmission rod 603. The movement of the transmission rod 603 can change the position of the movable box 7. Moreover, since each group of the angle adjustment components 6 has two transmission rods 603, when adjusting the position of the movable box 7, the opposite side of the lower box 4 and the movable box 7 is always kept in a parallel state, so as to control the posture of the electric telescopic rod 8 and the clamp 9. Since the width and curvature of the blades at different positions are different, but with a smooth transition, the two inner sides of the clamp 9 need to be adapted to the range of curvature change, so that during the rising and falling process of the clamp 9, the edge of the blade is always between the two inner sides of the clamp 9 to ensure the stability of the position of the lower box 4 during the descent and rise process. When cleaning, it is necessary to use the inner side of the clamp 9 to clamp the blade. At least one of the clamps 9 on both sides can achieve good contact with the edge of the blade. At the same time, the tension of the pull rope 302 can keep the position of the lower box 4 stable.

[0074] See also Figure 3 , Figure 6-Figure 9 The position adjustment component 13 includes an arc plate 1301, the number of which is the same as the groove of the lower box body 4, and each arc plate 1301 is slidably installed in the groove of the lower box body 4; the position adjustment component 13 also includes a second rotating shaft 1302; the second rotating shaft 1302 is rotatably connected to the lower box body 4 through a mounting seat 1305; the second rotating shaft 1302 is transmission-connected to the arc plate 1301, and the second rotating shaft 1302 is transmission-connected to the output shaft of the third motor 12 through a third gear 1304; the first cleaning plate 10 and the second cleaning plate 1302 are connected to each other. The cleaning plates 11 are respectively installed on different arc plates 1301, and the arc plates 1301 include arc convex plates 13011, whose shape is adapted to the shape of the groove of the lower box body 4; the arc convex plates 13011 are provided with connecting plates 13012, which pass through the groove opened in the lower box body 4 and are fixed to the first cleaning plate 10 or the second cleaning plate 11; the arc convex plates 13011 are also provided with teeth 13013; the second rotating shaft 1302 is also provided with a second gear 1303, and the second gear 1303 and the teeth 13013 are meshed with each other.

[0075] By adopting the above technical solution, when in use, the third motor 12 can drive the third gear 1304 to rotate, driving the second rotating shaft 1302 to rotate, so that the second gear 1303 drives the arc-shaped convex plate 13011 to slide in the groove opened in the lower box body 4, thereby driving the first cleaning plate 10 and the second cleaning plate 11 to slide, thereby cleaning the point to be cleaned.

[0076] See also Figure 4 and Fig.10 The cleaning assembly 14 includes a cleaning roller 1401, a connecting column 1402 and a slider 1403; the connecting column 1402 is fixed on the first cleaning plate 10 and the second cleaning plate 11, and is located at both ends and distributed at intervals; the slider 1403 is slidably installed on the connecting column 1402; the cleaning roller 1401 is rotatably connected between the connecting columns 1402 at both ends; a spring 1404 is also provided on the connecting column 1402, and both ends of the spring 1404 are respectively fixed to one end of the connecting column 1402 facing the lower box 4 and the slider 1403.

[0077] By adopting the above technical solution, the cleaning roller 1401 can always fit with the surface of the blade under the action of the spring 1404 during the sliding process, and cleaning can be achieved for positions with different curvatures.

[0078] The grooves formed in the lower box body 4 face opposite directions. Two sets of third motors 12 are provided to drive the arc-shaped convex plates 13011 in the grooves formed in the lower box body 4 to move in the extending directions of the grooves.

[0079] By adopting the above technical solution, the first cleaning plate 10 and the second cleaning plate 11 move in opposite directions, thereby achieving relatively complete cleaning of the blade surface.

[0080] The inner concave surface of the clamping jaw 9 is provided with a soft gasket 16 to prevent the clamping jaw 9 from rubbing against the blade and damaging the edge of the blade;

[0081] A method for using an automatic reciprocating cleaning device for wind power generation blades, applied to an automatic reciprocating cleaning device for wind power generation blades, comprises the following steps:

[0082] S1, control the wind turbine to stop, and the blades to be cleaned are in a vertical state, which is more conducive to lowering and pulling up the lower box 4;

[0083] S2, installing the clamping jaws 9 on both sides of the blade to be cleaned, and the cleaning assembly 14 contacts the blade surface of the blade to be cleaned;

[0084] S3, lower the lower box 4 through the first motor 2 until the lower box 4 reaches the end of the blade to be cleaned, and during the lowering process of the lower box 4, the blade surface to be cleaned is washed through the spray pipe 15, and the third motor 12 drives the cleaning component 14 to clean the blade surface through the position adjustment component 13. In this process, the position of the clamping jaw 9 is adjusted according to the width and curvature of the blade at different positions, and the adjustment process is achieved through the angle adjustment component 6 and the electric telescopic rod 8. The implementation of this process can be based on the specific width and curvature of the blade at different positions, and can be achieved through an automated computer program. The number of revolutions of the output shaft of the first motor 2 determines the lowering of the lower box 4. The distance is measured to realize the positioning of the lower box body 4 in the vertical direction. Based on the data, the blade width and curvature at the lower box body 4 can be known, and then the clamping jaw 9 can be controlled to adjust the position in real time during the descent process. The control of the clamping jaw 9 can also be realized by using products in the prior art such as cameras and pressure sensors. The action of the clamping jaw 9 can be accurately controlled by the remote control device in the prior art. The camera can be installed on the lower box body 4, and the viewing angle needs to be able to observe the clamping jaw 9. The pressure sensor is installed on the inner concave surface of the clamping jaw 9 to determine the contact between the clamping jaw 9 and the blade at this location, as well as the pressure between the two. The operator can make corresponding adjustments based on the data;

[0085] S4, the output shaft of the first motor 2 is reversed to drive the lower box body 4 to rise until the lower box body 4 is completely reset, and during the rising process of the lower box body 4, the third motor 12 drives the cleaning component 14 through the position adjustment component 13 to clean the leaf surface.

[0086] In step S3 and step S4, the lower box body 4 is moved downward and upward intermittently.

[0087] Embodiment 2:

[0088] The difference from Example 1 is that: in this device, except for the fixed box 1 and the first motor 2, the structures have two groups, which are arranged on the two sides of the blade when in use, and there is a height difference between the clamping jaws 9 on both sides in the vertical direction. Therefore, when in use, both sides of the blade can be cleaned at a time, and better stability can also be provided.

[0089] Embodiment 3:

[0090] The difference from Example 1 is that in this embodiment, there are four second motors 5, and the corresponding first rotating shafts 601 also have four groups. Each second motor 5 realizes independent control of each group of transmission rods 603 through the corresponding first rotating shaft 601, thereby further improving the flexibility of the device.

[0091] Working principle: When in use, first control the wind turbine to stop, so that the blade to be cleaned is in a vertical downward state, install the fixed box 1 to the top of the tower, and fit the lower box 4 to the surface of the blade. The cleaning roller 1401 contacts the surface of the blade, and the edge of the blade is located in the inner concave surface of the clamp 9. Start the first motor 2 to rotate the winding wheel 301, and slowly release the pull rope 302. Under the action of gravity, the lower box 4 slowly descends. According to the different widths of the blades at various positions during the descent process, the position of the clamp 9 is adjusted. After reaching the position to be cleaned, the first motor 2 stops working, and the first cleaning plate 10 and the second cleaning plate 11 are controlled to move by the third motor 12, driving the cleaning component 14 to clean the surface of the blade. At the same time, the spray pipe 15 sprays water or cleaning liquid to achieve cleaning of this position. After completion, the first motor 2 continues to descend and reaches the next position to be cleaned. Cleaning can be performed in the same way. After cleaning is completed, the output shaft of the first motor 2 is controlled to rotate in the opposite direction to rewind the pull rope 302. During the rewinding process, the lower box 4 continues to clean the surface of the blade while rising.

[0092] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0093] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0094] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0097] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0098] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic reciprocating cleaning device for wind turbine blades, characterized in that: It comprises a fixed box (1), a linear transmission component (3), a lower box (4), an angle adjustment component (6), a movable box (7), a clamping claw (9), a first cleaning plate (10), a second cleaning plate (11), a position adjustment component (13) and a cleaning component (14); A first motor (2) is arranged in the inner cavity of the fixed housing (1), and an output shaft of the first motor (2) is transmission-connected to the lower housing (4) via a linear transmission assembly (3); A second motor (5) is provided in the inner cavity of the lower box (4), and an output shaft of the second motor (5) is transmission-connected to the movable box (7) via an angle adjustment component (6); An electric telescopic rod (8) is provided in the inner cavity of the movable box (7), and the clamping claw (9) is provided at the output end of the electric telescopic rod (8); The lower box body (4) has an arc-shaped surface, and an arc-shaped groove is formed on the arc-shaped surface; the position adjustment component (13) is slidably mounted in the groove of the lower box body (4); and the first cleaning plate (10) and the second cleaning plate (11) are arranged on the position adjustment component (13); A third motor (12) is provided in the lower box (4), and an output shaft of the third motor (12) is transmission-connected to the first cleaning plate (10) and the second cleaning plate (11) via a position adjustment component (13); The cleaning assembly (14) is elastically connected to the first cleaning plate (10) and the second cleaning plate (11); The first cleaning plate (10) and the second cleaning plate (11) are also provided with spray pipes (15).

2. The automatic reciprocating cleaning device for wind turbine blades according to claim 1, characterized in that: The linear transmission assembly (3) comprises a winding wheel (301), a pull rope (302) and a pulley (303); The winding wheel (301) is arranged in the inner cavity of the fixed box (1) and is fixed to the output shaft of the first motor (2); The pull rope (302) is wound around the reel (301); The pulley (303) is rotatably connected in the inner cavity of the lower box body (4), and the bottom end of the pull rope (302) penetrates into the inner cavity of the lower box body (4) and is wound around the pulley (303).

3. The automatic reciprocating cleaning device for wind turbine blades according to claim 1, characterized in that: The angle adjustment components (6) are provided with at least four groups, which are respectively located at the four corners of the lower box (4); the number of the movable boxes (7) is the same as the number of the angle adjustment components (6); the angle adjustment components (6) include a first rotating shaft (601), a first gear (602) and a transmission rod (603); Each group of angle adjustment components (6) has two transmission rods (603), and the transmission rods (603) are rotatably connected to the lower box body (4) via a first rotating shaft (601); One of the first rotating shafts (601) in each group of angle adjustment components (6) is drivingly connected to the output shaft of the second motor (5) via a first gear (602); Each movable box (7) is rotatably connected to the ends of two transmission rods (603) in each set of angle adjustment components (6).

4. The automatic reciprocating cleaning device for wind turbine blades according to claim 1, characterized in that: The position adjustment assembly (13) comprises arc-shaped plates (1301), the number of which is the same as the grooves of the lower box (4), and each arc-shaped plate (1301) is slidably installed in the groove of the lower box (4); The position adjustment component (13) further includes a second rotating shaft (1302); The second rotating shaft (1302) is rotatably connected to the lower box (4) via a mounting seat (1305); The second rotating shaft (1302) is transmission-connected to the arc-shaped plate (1301), and the second rotating shaft (1302) is transmission-connected to the output shaft of the third motor (12) via a third gear (1304); The first cleaning plate (10) and the second cleaning plate (11) are respectively mounted on different arc-shaped plates (1301).

5. The automatic reciprocating cleaning device for wind turbine blades according to claim 4, characterized in that: The arc-shaped plate (1301) comprises an arc-shaped convex plate (13011), the shape of which is adapted to the shape of the groove of the lower box (4); The arc-shaped convex plate (13011) is provided with a connecting plate (13012), which extends out of a groove provided in the lower box body (4) and is fixed to the first cleaning plate (10) or the second cleaning plate (11); The arc-shaped convex plate (13011) is also provided with teeth (13013); The second rotating shaft (1302) is also provided with a second gear (1303), and the second gear (1303) is meshed with the gear (13013).

6. The automatic reciprocating cleaning device for wind turbine blades according to claim 1, characterized in that: The cleaning assembly (14) comprises a cleaning roller (1401), a connecting column (1402) and a sliding block (1403); The connecting posts (1402) are fixed on the first cleaning plate (10) and the second cleaning plate (11), and are located at both ends and are distributed at intervals; The slider (1403) is slidably mounted on the connecting column (1402); The cleaning roller (1401) is rotatably connected between the connecting posts (1402) at both ends; The connecting column (1402) is also provided with a spring (1404), and the two ends of the spring (1404) are respectively fixed to one end of the connecting column (1402) facing the lower box body (4) and the sliding block (1403).

7. The automatic reciprocating cleaning device for wind turbine blades according to claim 5, characterized in that: The grooves formed in the lower box body (4) face in opposite directions. The third motor (12) is provided in two groups and drives the arc-shaped convex plates (13011) in the grooves formed in the lower box body (4) to move in the extending directions of the grooves.

8. The automatic reciprocating cleaning device for wind turbine blades according to claim 1, characterized in that: The inner concave surface of the clamping jaw (9) is provided with a soft gasket (16).

9. A method for using an automatic reciprocating cleaning device for wind turbine blades, applied to an automatic reciprocating cleaning device for wind turbine blades as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1, control the wind turbine to stop, and the blades to be cleaned are in a vertical state; S2, installing the clamping jaws (9) on both sides of the blade to be cleaned, and the cleaning assembly (14) contacts the blade surface of the blade to be cleaned; S3, lowering the lower box (4) by means of the first motor (2) until the lower box (4) reaches the end of the blade to be cleaned, and during the lowering process of the lower box (4), the surface of the blade to be cleaned is washed by means of the spray pipe (15), and the third motor (12) drives the cleaning component (14) to clean the blade surface through the position adjustment component (13); S4. The output shaft of the first motor (2) is reversed to drive the lower box body (4) to rise until the lower box body (4) is completely reset. During the rising process of the lower box body (4), the third motor (12) drives the cleaning component (14) through the position adjustment component (13) to clean the leaf surface.

10. The method for using the automatic reciprocating cleaning device for wind turbine blades according to claim 9, characterized in that: In step S3 and step S4, the lower box (4) is moved downward and upward intermittently.

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