A wind power blade paint surface damage repairing device and method

Abstract

The present application relates to the technical field of wind power blade maintenance, and discloses a wind power blade paint surface damage maintenance device and a maintenance method, which comprises a mobile vehicle, a rotating disc frame is arranged on the mobile vehicle, a polishing mechanism, a grease scraping mechanism and a spraying mechanism are circumferentially arranged on the rotating disc frame, a switching mechanism, a linkage mechanism, a reciprocating mechanism and an adjusting mechanism are further arranged on the mobile vehicle; the switching mechanism comprises a switching rack and a switching gear, and the switching rack is arranged on the mobile vehicle; the linkage mechanism comprises a driving assembly, a rotating assembly, a downward moving assembly, a rubber suction cup and a horizontal rod. The present application can automatically polish, scrape grease and spray at the paint surface damage, thereby avoiding the problem of manual repair, and can automatically support the mobile vehicle, fix the position of the mobile vehicle, and automatically drive the polishing mechanism, the grease scraping mechanism and the spraying mechanism to move to the best working position.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade repair technology, specifically to a repair device and method for repairing paint damage on wind turbine blades. Background Technology

[0002] Wind turbine blades are the core components of wind turbine generators. Wind turbines generate electricity by rotating the blades to drive the generator. To improve the protection of existing wind turbine blades, protective paint is usually sprayed on their surface after production. However, due to the large size of existing wind turbine blades and the fact that wind turbines are often installed in remote areas, the paint on the surface of the wind turbine blades is inevitably damaged to some extent during transportation due to various factors. Therefore, it is necessary to repair the damaged paint on the surface of the wind turbine blades before assembly. Most conventional wind turbine blade maintenance is done manually. While manual maintenance is convenient, it is time-consuming and labor-intensive. In addition, the workers need to climb up and down during the maintenance process, which can easily damage the wind turbine blades. There are also certain safety hazards for the workers in the process of climbing up and down. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a wind turbine blade paint damage repair device and method, which has the advantages of automatically repairing the damaged parts of the blade and automatically fixing the position of the mobile vehicle, thus solving the above-mentioned problems.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wind turbine blade paint damage repair device, comprising a mobile vehicle, a turntable frame mounted on the mobile vehicle, a grinding mechanism, a putty scraping mechanism, and a spraying mechanism circumferentially arranged on the turntable frame, the grinding mechanism being used to grind the damaged paint surface, the putty scraping mechanism being used to apply putty to the ground paint surface, and the spraying mechanism being used to spray paint on the putty-applied paint surface; the mobile vehicle is also provided with a switching mechanism, a linkage mechanism, a reciprocating mechanism, and an adjusting mechanism, the reciprocating mechanism being used to drive the turntable frame to move horizontally back and forth on the mobile vehicle, and the adjusting mechanism being used to adjust the position of the turntable frame; The switching mechanism includes a switching rack and a switching gear. The switching rack is mounted on the moving vehicle. After the switching gear moves to the switching rack and meshes with it, the switching gear can drive the turntable frame to rotate 120 degrees. The linkage mechanism includes a drive component, a rotation component, a downward component, a rubber suction cup, and a crossbar. The drive component is used to drive the rotation component and the downward component. When the rotation component is in operation, it can drive the rubber suction cup to rotate 90 degrees. When the downward component is in operation, it can drive the crossbar to move downward.

[0005] Preferably, the turntable frame is rotatably connected to one end of the crossbar, a ratchet structure is provided on the inner side of the switching gear, a switching worm is fixedly connected to the inner side of the ratchet structure, the switching worm is rotatably connected to the crossbar, a switching worm wheel is engaged on the outer side of the switching worm, the switching worm wheel is coaxially arranged with the turntable frame, and the switching worm wheel can drive the turntable frame to rotate when it rotates, and the switching gear can engage with the switching rack when it moves.

[0006] Preferably, the drive assembly includes a drive motor, a fixed plate is fixedly connected to the outer side of the drive motor, the fixed plate is fixedly connected to the moving vehicle, the output shaft of the drive motor passes through the fixed plate and is fixedly connected to a drive gear, a downward rack and an upward rack are respectively meshed on both sides of the drive gear, a rectangular hole is opened on the fixed plate, the rectangular hole is distributed on both sides of the fixed plate, a fixed rod is fixedly connected to the inner side of the rectangular hole, and the downward rack and the upward rack are slidably connected to the fixed rod.

[0007] Preferably, the rotating assembly includes a vacuum pump and a rotating shaft. The rotating shaft is distributed on both sides of the bottom of the mobile vehicle. A rotating gear is fixedly connected to the rotating shaft. The rotating gear meshes with the downward moving rack. A driving wheel is fixedly connected to the rotating shaft. A toothed belt meshes with the inner side of the driving wheel. A driven wheel meshes with the end of the toothed belt away from the driving wheel. The driving wheel and the driven wheel are fixedly connected to the rotating shaft.

[0008] Preferably, symmetrically distributed conical columns are fixedly connected to the rotating shaft, the rubber suction cups are fixedly connected to the inner side of the conical columns, and the rubber suction cups distributed on one side are connected by a connecting pipe. The rubber suction cups are connected to the vacuum pump through a spring tube, and the vacuum pump is fixedly connected to the mobile vehicle.

[0009] Preferably, the downward moving component includes a downward moving gear, which drives the downward moving gear to rotate when the upward moving rack moves. A downward moving worm is fixedly connected to the outer side of the downward moving gear, and a sliding plate is rotatably connected to the outer side of the downward moving worm. A downward moving worm wheel meshes with the outer side of the downward moving worm, and the downward moving worm wheel is rotatably connected to the sliding plate. An adjusting gear is coaxially fixedly connected to the downward moving worm wheel, and an adjusting rack meshes with the outer side of the adjusting gear. A slider is fixedly connected to the inner side of the adjusting rack, and a limit hole is slidably connected to the inner side of the slider. The limit hole is opened on the sliding plate, and the end of the slider away from the adjusting rack passes through the limit hole and is fixedly connected to the crossbar.

[0010] Preferably, the reciprocating mechanism includes a base and a guide rod. A fixed motor is fixedly connected to one end of the base. The output shaft of the fixed motor passes through the base and is fixedly connected to a reciprocating lead screw. A sliding plate is slidably connected to the reciprocating lead screw. The guide rod is fixedly connected to the base and is distributed on both sides of the base. The sliding plate is slidably connected to the guide rod.

[0011] Preferably, the adjustment mechanism includes a base plate and a slide rail. The base plate is fixedly connected to the moving vehicle. An adjustment motor is fixedly connected to the outer side of the base plate. A screw is fixedly connected to the output shaft of the adjustment motor. The end of the screw away from the adjustment motor is rotatably connected to the base plate. The slide rail is fixedly connected to the base plate and is distributed on both sides of the base plate. The base is threadedly connected to the screw and slidably connected to the slide rail.

[0012] Preferably, the mobile vehicle is equipped with motor-driven rollers, which are distributed at the four corners of the mobile vehicle. A sling ring is also fixedly connected to one end of the mobile vehicle, and the sling ring is distributed on both sides of one end of the mobile vehicle.

[0013] A method for repairing paint damage on wind turbine blades, using the aforementioned wind turbine blade paint damage repair equipment.

[0014] Compared with the prior art, the present invention provides a device and method for repairing paint damage on wind turbine blades, which has the following beneficial effects: 1. In this invention, when the paint on a wind turbine blade needs repair, a grinding mechanism and a reciprocating mechanism are driven to operate. The grinding mechanism grinds the damaged areas of the paint, while the reciprocating mechanism drives the turntable and grinding mechanism to move horizontally towards the switching rack. At this time, the grinding mechanism can thoroughly grind the damaged areas of the paint. The switching gear on the turntable is driven to move synchronously. When the reciprocating mechanism drives the switching gear to the position of the switching rack, the switching gear contacts and meshes with the switching rack. As the turntable moves, the switching rack drives the switching gear to rotate, and the rotation of the switching gear drives the turntable to rotate 120 degrees. At this time, the grinding mechanism separates from the blade surface as the turntable rotates. While the turntable rotates, the scraping mechanism on the turntable gradually moves to the position before the grinding mechanism. After placement, the puttying mechanism operates to putty the sanded paint surface. Since the reciprocating mechanism is still running, it drives the puttying mechanism to move horizontally towards the drive assembly to putty, thus fully repairing and scraping the damaged areas of the paint surface. Then, the reciprocating mechanism drives the turntable and puttying mechanism to move towards the switching rack. Similarly, the switching gear contacts the switching rack again, and the switching rack drives the switching gear to rotate 120 degrees. The turntable rotates again, moving the spraying mechanism to the position of the puttying mechanism. The spraying mechanism then sprays the puttyed area, thus achieving automatic sanding, puttying, and spraying of damaged areas of the paint surface, avoiding the need for manual repairs and improving ease of use.

[0015] 2. In this invention, after the mobile vehicle moves to the user's designated position, the drive component is controlled to operate. The drive component then drives the rotating and lowering components to operate. The rotating component drives the rubber suction cup to rotate 90 degrees. As the rubber suction cup rotates, it supports the mobile vehicle and firmly adheres to the blade surface, thus fixing the position of the mobile vehicle. Simultaneously with the rotating component, the lowering component operates synchronously, driving the crossbar to move downwards. This movement of the crossbar causes the turntable frame to move downwards. At this point, the grinding, scraping, and spraying mechanisms on the turntable frame move to a position close to the blade. The grinding, scraping, and spraying mechanisms then repair any damaged areas of the blade's paint surface. This invention automatically supports the mobile vehicle, fixes its position, and automatically drives the grinding, scraping, and spraying mechanisms to their optimal working positions, further improving ease of use. Attached Figure Description

[0016] Figure 1 This is a first-view schematic diagram of the present invention; Figure 2 This is a schematic diagram from a second perspective of the present invention; Figure 3 for Figure 2Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a side sectional view of the present invention; Figure 5 This is a third-view schematic diagram of the present invention; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B; Figure 7 For this Figure 6 Enlarged schematic diagram of the structure at point C; Figure 8 This is a schematic diagram of the fourth-view structure of the present invention; Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point D; Figure 10 This is a schematic diagram of the fifth perspective structure of the present invention; Figure 11 This is a side sectional view of the switching gear structure in this invention.

[0017] In the diagram: 1. Moving vehicle; 2. Turntable frame; 3. Grinding mechanism; 4. Scraping mechanism; 5. Spraying mechanism; 6. Switching mechanism; 61. Switching rack; 62. Switching gear; 621. Ratchet structure; 622. Switching worm; 623. Switching worm wheel; 7. Linkage mechanism; 71. Drive assembly; 711. Drive motor; 712. Fixing plate; 713. Drive gear; 714. Lowering rack; 715. Uppering rack; 716. Rectangular hole; 717. Fixing rod; 72. Rotating assembly; 721. Vacuum pump; 722. Rotating shaft; 723. Rotating gear 724. Wheel; 725. Driving wheel; 726. Toothed belt; 727. Driven wheel; 728. Conical column; 73. Lowering assembly; 731. Lowering gear; 732. Lowering worm; 733. Sliding plate; 734. Lowering worm wheel; 735. Adjusting gear; 736. Adjusting rack; 737. Slider; 738. Limiting hole; 74. Rubber suction cup; 75. Crossbar; 8. Reciprocating mechanism; 81. Base; 82. Fixed motor; 83. Reciprocating lead screw; 85. Guide rod; 9. Adjusting mechanism; 91. Base plate; 92. Adjusting motor; 93. Screw; 94. Slide rail. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a wind turbine blade paint damage repair device and repair method.

[0020] Example 1: Please refer to Figures 1-11 A wind turbine blade paint damage repair device includes a mobile vehicle 1. The mobile vehicle 1 has motor-driven rollers at its four corners, and symmetrically distributed sling rings are fixedly connected to one end of the mobile vehicle 1. A control center is installed on the mobile vehicle 1 to control the operation of a grinding mechanism 3, a puttying mechanism 4, a spraying mechanism 5, a linkage mechanism 7, a reciprocating mechanism 8, and an adjustment mechanism 9. A turntable frame 2 is installed on the mobile vehicle 1, with the grinding mechanism 3, puttying mechanism 4, and spraying mechanism 5 arranged circumferentially on the turntable frame 2. The grinding mechanism 3 grinds the damaged areas of the paint surface, the puttying mechanism 4 applies putty to the ground paint surface, and the spraying mechanism 5 sprays paint onto the putty-covered paint surface. The mobile vehicle 1 also includes a switching mechanism 6, a linkage mechanism 7, a reciprocating mechanism 8, and an adjustment mechanism 9. The reciprocating mechanism 8 drives the turntable frame 2 to move horizontally back and forth on the mobile vehicle 1, and the adjustment mechanism 9 adjusts the position of the turntable frame 2. The switching mechanism 6 includes a switching rack 61 and a switching gear 62. The switching rack 61 is mounted on the moving vehicle 1. After the switching gear 62 moves to the switching rack 61 and meshes with it, the switching gear 62 can drive the turntable frame 2 to rotate 120 degrees. The linkage mechanism 7 includes a drive assembly 71, a rotation assembly 72, a downward movement assembly 73, a rubber suction cup 74, and a crossbar 75. A camera is installed on the crossbar 75 to observe paint damage and subsequent repair. The drive assembly 71 drives the rotation assembly 72 and the downward movement assembly 73. When the rotation assembly 72 is in operation, it can drive the rubber suction cup 74 to rotate 90 degrees. When the downward movement assembly 73 is in operation, it can drive the crossbar 75 to move downward.

[0021] While the blade is still on the transport vehicle, the mobile vehicle 1 is hoisted onto the blade using slings. Then, the mobile vehicle 1 is moved to the designated position by a motor-driven direct-drive roller. Next, the drive assembly 71 is controlled to operate, which in turn drives the rotating assembly 72 and the lowering assembly 73. The rotating assembly 72 drives the rubber suction cup 74 to rotate 90 degrees. As the rubber suction cup 74 rotates, it supports the mobile vehicle 1, firmly adhering to the blade surface and fixing the position of the mobile vehicle 1. Simultaneously with the rotation assembly 72, the lowering assembly 73 operates synchronously, driving the... The horizontal bar 75 moves downward, causing the turntable frame 2 to move downward as well. At this time, the sanding mechanism 3, the putty scraping mechanism 4, and the spraying mechanism 5 on the turntable frame 2 are moved to their optimal working positions. After adjusting the position of the turntable frame 2 via the adjusting mechanism 9, the reciprocating mechanism 8 and the sanding mechanism 3 are driven to operate. The sanding mechanism 3 sands the damaged areas of the blades. The reciprocating mechanism 8 drives the turntable frame 2 and the sanding mechanism 3 to move horizontally towards the switching rack 61. At this time, the sanding mechanism 3 performs moving sanding, thus thoroughly sanding the damaged areas of the paint surface. When the turntable frame 2 moves, it drives the switching gear 62 to move synchronously. The reciprocating mechanism 8 drives the switching gear 62... When the turntable 2 moves to the position of the switching rack 61, the switching gear 62 contacts and meshes with the switching rack 61. At this time, as the turntable 2 moves, the switching rack 61 drives the switching gear 62 to rotate, and the rotation of the switching gear 62 drives the turntable 2 to rotate 120 degrees. At this time, the sanding mechanism 3 separates from the blade surface as the turntable 2 rotates. As the turntable 2 rotates, the putty scraping mechanism 4 on the turntable 2 gradually moves to a position perpendicular to the blade. Then, the putty scraping mechanism 4 operates to scrape the sanded paint surface. Since the reciprocating mechanism 8 is still running at this time, the reciprocating mechanism 8 drives the putty scraping mechanism 4 to move horizontally towards the drive assembly 71 to scrape the putty. This process involves thoroughly filling and scraping the damaged paint surface. After the putty dries completely, the reciprocating mechanism 8 drives the turntable frame 2 and the scraping mechanism 4 to move towards the switching rack 61. Similarly, the switching gear 62 contacts the switching rack 61 again, and the switching rack 61 drives the switching gear 62 to rotate 120 degrees. The turntable frame 2 then rotates again, moving the spraying mechanism 5 to the position of the scraping mechanism 4. The spraying mechanism 5 then sprays the scraped area, thus achieving automatic sanding, scraping, and spraying of the damaged area. This avoids the time-consuming, labor-intensive, and potentially dangerous problems associated with manual repairs. It should be noted that in the initial state, the sanding mechanism 3 is located on the bottom surface of the turntable frame 2, and during sanding, the user controls the rotation speed of the reciprocating mechanism 8 to fully sand the damaged parts of the blade. After the putty is scraped, it is dried thoroughly by using an external drying device before spraying. The sanding mechanism 3 in this application is a sanding device composed of a sanding motor and a sanding disc in the prior art, while the putty scraping mechanism 4 adopts the putty extrusion mechanism in the plywood edge repair machine and its automatic edge repair process of Chinese patent CN202010169944.7, and the spraying mechanism 5 adopts the spraying mechanism in the anti-corrosion coating spraying equipment for wind turbine blades of Chinese patent CN202111262529.7. Since the above-mentioned sanding mechanism 3, putty scraping mechanism 4 and spraying mechanism 5 are all prior art, this application will not elaborate further.

[0022] Example 2: See Figures 1-11 Unlike Embodiment 1 described above, the drive assembly 71 includes a drive motor 711. A fixing plate 712 is fixedly connected to the outer side of the drive motor 711. The fixing plate 712 is fixedly connected to the moving vehicle 1. The output shaft of the drive motor 711 passes through the fixing plate 712 and is fixedly connected to a drive gear 713. A downward-moving rack 714 and an upward-moving rack 715 are respectively meshed on both sides of the drive gear 713. A rectangular hole 716 is provided on the fixing plate 712, distributed on both sides of the fixing plate 712. A fixing rod 71 is fixedly connected to the inner side of the rectangular hole 716. 7. The lower rack 714 and the upper rack 715 are slidably connected to the fixed rod 717. The rotating assembly 72 includes a vacuum pump 721 and a rotating shaft 722. The rotating shaft 722 is distributed on both sides of the bottom of the moving vehicle 1. A rotating gear 723 is fixedly connected to the rotating shaft 722. The rotating gear 723 meshes with the lower rack 714. A driving wheel 724 is fixedly connected to the rotating shaft 722. A toothed belt 725 meshes with the inner side of the driving wheel 724. A driven wheel 726 meshes with the end of the toothed belt 725 away from the driving wheel 724. The driving wheel 724 and the driven wheel 726 are fixed. A rotating shaft 722 is connected to a rotating shaft 722, on which symmetrically distributed conical columns 727 are also fixedly connected. Rubber suction cups 74 are fixedly connected to the inner side of the conical columns 727, and the rubber suction cups 74 distributed on one side are connected by a connecting pipe. The rubber suction cups 74 are connected to a vacuum pump 721 through a spring tube. The vacuum pump 721 is fixedly connected to the moving carriage 1. The lowering assembly 73 includes a lowering gear 731. When the upper rack 715 moves, it can drive the lowering gear 731 to rotate. A lowering worm gear 732 is fixedly connected to the outer side of the lowering gear 731. The outer side of the lowering worm gear 732 rotates. A sliding plate 733 is connected to the sliding plate 733. A downward worm gear 734 meshes with the outer side of the downward worm 732. The downward worm gear 734 is rotatably connected to the sliding plate 733. An adjusting gear 735 is coaxially fixedly connected to the downward worm gear 734. An adjusting rack 736 meshes with the outer side of the adjusting gear 735. A slider 737 is fixedly connected to the inner side of the adjusting rack 736. A limit hole 738 is slidably connected to the inner side of the slider 737. The limit hole 738 is opened on the sliding plate 733. The end of the slider 737 away from the adjusting rack 736 passes through the limit hole 738 and is fixedly connected to the crossbar 75. In use, the drive vehicle 1 is moved to the designated position. Then, the drive motor 711 drives the drive gear 713 to rotate. The rotation of the drive gear 713 causes the lower rack 714 and the upper rack 715 to move along the fixed rod 717 towards the bottom and top of the fixed plate 712, respectively. The movement of the lower rack 714 causes the rotating gear 723 to rotate, which in turn causes the rotating shaft 722 to rotate. The rotating shaft 722 then causes the drive wheel 724 to rotate, which in turn drives the driven wheel 726 to rotate via the toothed belt 725. At this time, the conical column 727 on the rotating shaft 722 rotates 90 degrees, causing the rubber suction cup 74 to rotate. The conical column 727 then lifts the drive vehicle 1, and the bottom surface of the rubber suction cup 74 contacts the blade surface. Then, the operation of the vacuum pump 721 firmly attaches the rubber suction cup 74 to the blade. After the rubber suction cup 74 is attached to the blade, the position of the drive vehicle 1 is fixed. The upper rack 715... The moving drive gear 731 rotates, which in turn drives the moving worm 732 to rotate. The moving worm 732 in turn drives the moving worm wheel 734 to rotate. The moving worm wheel 734 in turn drives the adjusting gear 735 to rotate. The adjusting gear 735 in turn drives the adjusting rack 736 to move downward. The moving rack 736 in turn drives the slider 737 to move downward along the limiting hole 738. The moving slider 737 in turn drives the crossbar 75 to move downward. The moving crossbar 75 in turn drives the turntable frame 2 to move downward, thereby... While fixing the position of the mobile vehicle 1, it can also automatically move the grinding mechanism 3, the putty scraping mechanism 4, and the spraying mechanism 5 to the optimal working position. Furthermore, through the setting of the downward worm 732 and the downward worm wheel 734, after the upward rack 715 drives the crossbar 75 to move downward, the downward worm 732 and the downward worm wheel 734 can lock the adjusting gear 735, thereby preventing the adjusting gear 735 from reversing after the downward gear 731 separates from the upward rack 715.

[0023] Example 3, see Figures 1-11 Unlike the second embodiment described above, the turntable frame 2 is rotatably connected to one end of the crossbar 75. A ratchet structure 621 is provided on the inner side of the switching gear 62. A switching worm 622 is fixedly connected to the inner side of the ratchet structure 621. The switching worm 622 is rotatably connected to the crossbar 75. A switching worm wheel 623 is meshed on the outer side of the switching worm 622. The switching worm wheel 623 is coaxially arranged with the turntable frame 2. When the switching worm wheel 623 rotates, it can drive the turntable frame 2 to rotate. When the switching gear 62 moves, it can mesh with the switching rack 61. The reciprocating mechanism 8 includes a base 81 and a guide rod 85. A fixed motor 82 is fixedly connected to one end of the base 81. The output shaft of the fixed motor 82 passes through the base 81 and is fixedly connected to a reciprocating screw 83. A sliding plate 733 is slidably connected to the reciprocating screw 83. The guide rod 85 is fixedly connected to the base 81 and is distributed on both sides of the base 81. The sliding plate 733 is slidably connected to the guide rod 85. In use, the reciprocating screw 83 is driven to rotate by the fixed motor 82. The rotation of the reciprocating screw 83 causes the sliding plate 733 to move along the guide rod 85. The movement of the sliding plate 733 causes the lowering assembly 73, the crossbar 75, the turntable frame 2, the grinding mechanism 3, the putty scraping mechanism 4, the spraying mechanism 5, and the switching gear 62 to move. After the switching gear 62 moves to the position of the switching rack 61, the switching gear 62 meshes with the switching rack 61. Then, as the sliding plate 733 and the crossbar 75 move, the switching rack 61 drives the switching gear 62 to rotate. The rotation of the switching gear 62 drives the switching worm gear 622 to rotate through its internal ratchet structure 621. The rotation of the switching worm gear 622 drives the switching worm wheel. Rotation of 623 causes the worm gear 623 to rotate, which in turn drives the turntable 2 to rotate, thereby switching between the sanding mechanism 3, the putty scraping mechanism 4, and the spraying mechanism 5. As the reciprocating screw 83 rotates continuously, after the sanding mechanism 3 finishes sanding the damaged areas of the paint surface, the reciprocating screw 83 drives the turntable 2 to return to its original position. During this process, the switching rack 61 drives the switching gear 62 to rotate. Because the switching gear 62 has a ratchet structure 621 inside, when the switching rack 61 drives the switching gear 62 to rotate in the opposite direction, the switching gear 62 can no longer drive the switching worm gear 623 to rotate, thus avoiding the problem that the sanding mechanism 3 will return to its original position again when the reciprocating screw 83 drives the sliding plate 733 to return to its original position.

[0024] Example 4, see Figures 1-11 Unlike the above embodiment 3, the adjustment mechanism 9 includes a base plate 91 and a slide rail 94. The base plate 91 is fixedly connected to the moving vehicle 1. An adjustment motor 92 is fixedly connected to the outside of the base plate 91. A screw 93 is fixedly connected to the output shaft of the adjustment motor 92. The end of the screw 93 away from the adjustment motor 92 is rotatably connected to the base plate 91. The slide rail 94 is fixedly connected to the base plate 91 and is distributed on both sides of the base plate 91. The base 81 is threadedly connected to the screw 93 and slidably connected to the slide rail 94. When the position of the turntable frame 2 needs to be adjusted, the screw 93 is driven to rotate by the adjustment motor 92. The rotation of the screw 93 causes the base 81 to move along the slide rail 94. The movement of the base 81 causes the sliding plate 733 and the turntable frame 2 to move, thereby achieving the effect of adjusting the position of the turntable frame 2, the grinding mechanism 3, the putty scraping mechanism 4, and the spraying mechanism 5, thus improving the flexibility of the device.

[0025] A method for repairing paint damage on wind turbine blades, using the aforementioned wind turbine blade paint damage repair equipment.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind turbine blade paint damage repair device, comprising a mobile vehicle, a turntable frame mounted on the mobile vehicle, and a grinding mechanism, a putty scraping mechanism, and a spraying mechanism circumferentially arranged on the turntable frame. The grinding mechanism is used to grind the damaged paint area, the putty scraping mechanism is used to apply putty to the ground paint surface, and the spraying mechanism is used to spray paint on the putty-covered paint surface. The device is characterized by: The mobile vehicle is also equipped with a switching mechanism, a linkage mechanism, a reciprocating mechanism, and an adjustment mechanism. The reciprocating mechanism is used to drive the turntable frame to move horizontally back and forth on the mobile vehicle, and the adjustment mechanism is used to adjust the position of the turntable frame. The linkage mechanism includes a drive component, a rotation component, a downward component, a rubber suction cup, and a crossbar. The drive component is used to drive the rotation component and the downward component. When the rotation component is in operation, it can drive the rubber suction cup to rotate 90 degrees. When the downward component is in operation, it can drive the crossbar to move downward. The switching mechanism includes a switching rack and a switching gear. The switching rack is mounted on the moving vehicle. After the switching gear moves to the switching rack and meshes with it, the switching gear can drive the turntable frame to rotate 120 degrees. The inner side of the switching gear is provided with a ratchet structure, and the inner side of the ratchet structure is fixedly connected to a switching worm. The switching worm is rotatably connected to the crossbar, and the outer side of the switching worm is engaged with a switching worm wheel. The switching worm wheel is coaxially arranged with the turntable frame, and the switching worm wheel can drive the turntable frame to rotate when it rotates. The drive assembly includes a drive motor, a fixed plate is fixedly connected to the outer side of the drive motor, the fixed plate is fixedly connected to the moving vehicle, the output shaft of the drive motor passes through the fixed plate and is fixedly connected to a drive gear, a downward rack and an upward rack are respectively meshed on both sides of the drive gear, a rectangular hole is opened on the fixed plate, the rectangular hole is distributed on both sides of the fixed plate, a fixed rod is fixedly connected to the inner side of the rectangular hole, and the downward rack and the upward rack are slidably connected to the fixed rod; The downward rack is used to drive the rotating assembly to rotate the rubber suction cup 90 degrees to support the moving vehicle and fix the rubber suction cup to the blade surface; the upward rack is used to drive the downward assembly to move the crossbar downward and drive the turntable frame to the working position. The rotating assembly includes a vacuum pump and a rotating shaft. The rotating shaft is distributed on both sides of the bottom of the mobile vehicle. A rotating gear is fixedly connected to the rotating shaft. The rotating gear meshes with the downward moving rack. The rubber suction cup is connected to the vacuum pump through a spring tube.

2. The wind turbine blade paint damage repair equipment according to claim 1, characterized in that: The turntable frame is rotatably connected to one end of the crossbar, and the switching gear can mesh with the switching rack when it moves.

3. The wind turbine blade paint damage repair equipment according to claim 1, characterized in that: A drive wheel is fixedly connected to the rotating shaft. A toothed belt meshes with the inner side of the drive wheel. A driven wheel meshes with the end of the toothed belt away from the drive wheel. The drive wheel and the driven wheel are fixedly connected to the rotating shaft. Symmetrically distributed conical columns are also fixedly connected to the rotating shaft. The rubber suction cups are fixedly connected to the inner side of the conical columns, and the rubber suction cups distributed on one side are connected by a connecting pipe. The vacuum pump is fixedly connected to the mobile vehicle.

4. The wind turbine blade paint damage repair equipment according to claim 3, characterized in that: The downward moving component includes a downward moving gear. When the upward moving rack moves, it can drive the downward moving gear to rotate. A downward moving worm is fixedly connected to the outer side of the downward moving gear. A sliding plate is rotatably connected to the outer side of the downward moving worm. A downward moving worm wheel meshes with the outer side of the downward moving worm. The downward moving worm wheel is rotatably connected to the sliding plate. An adjusting gear is coaxially fixedly connected to the downward moving worm wheel. An adjusting rack meshes with the outer side of the adjusting gear. A slider is fixedly connected to the inner side of the adjusting rack. A limit hole is slidably connected to the inner side of the slider. The limit hole is opened on the sliding plate. The end of the slider away from the adjusting rack passes through the limit hole and is fixedly connected to the crossbar.

5. The wind turbine blade paint damage repair equipment according to claim 4, characterized in that: The reciprocating mechanism includes a base and a guide rod. A fixed motor is fixedly connected to one end of the base. The output shaft of the fixed motor passes through the base and is fixedly connected to a reciprocating lead screw. A sliding plate is slidably connected to the reciprocating lead screw. The guide rod is fixedly connected to the base and is distributed on both sides of the base. The sliding plate is slidably connected to the guide rod.

6. The wind turbine blade paint damage repair equipment according to claim 5, characterized in that: The adjustment mechanism includes a base plate and a slide rail. The base plate is fixedly connected to the moving vehicle. An adjustment motor is fixedly connected to the outer side of the base plate. A screw is fixedly connected to the output shaft of the adjustment motor. The end of the screw away from the adjustment motor is rotatably connected to the base plate. The slide rail is fixedly connected to the base plate and is distributed on both sides of the base plate. The base is threadedly connected to the screw and slidably connected to the slide rail.

7. The wind turbine blade paint damage repair equipment according to claim 1, characterized in that: The mobile vehicle is equipped with motor-driven rollers, which are distributed at the four corners of the mobile vehicle. A sling ring is also fixedly connected to one end of the mobile vehicle, and the sling ring is distributed on both sides of one end of the mobile vehicle.

8. The wind turbine blade paint damage repair equipment according to claim 1, characterized in that: A camera is installed on the crossbar.

9. A method for repairing paint damage on wind turbine blades, characterized in that: The wind turbine blade paint damage repair equipment as described in any one of claims 1-8 was used.

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