Wind power blade paint surface damage maintenance equipment and maintenance method

Abstract

The invention relates to the technical field of wind power blade maintenance and discloses wind power blade paint surface damage maintenance equipment and method.The wind power blade paint surface damage maintenance equipment comprises a moving trolley, a rotating disc frame is arranged on the moving trolley, and a grinding mechanism, a putty scraping mechanism and a spraying mechanism are arranged on the circumference of the rotating disc frame; a switching mechanism, a linkage mechanism, a reciprocating mechanism and an adjusting mechanism are further arranged on the moving trolley. 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 transverse rod. The effects of automatic polishing, putty scraping and spraying on the damaged part of the paint surface are achieved, so that the problem that manual repairing is needed is avoided, the position of a moving vehicle can be fixed while the moving vehicle can be automatically supported, and the working efficiency is improved. And the polishing mechanism, the putty scraping mechanism and the spraying mechanism can be automatically driven to move to the optimal working position.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade repair, and in particular to a device and method for repairing paint surface damage on a wind turbine blade. Background Art

[0002] Wind turbine blades are the core components of wind turbine generators, and wind turbines generate electricity by rotating the blades to drive the generator to rotate. In order to improve the protection of the existing wind turbine blades, they are usually sprayed with protective paint after the blades are produced. However, due to the large size of existing wind turbine blades and the fact that wind turbines are often installed in remote places, the paint on the surface of the wind turbine blades will inevitably be damaged to a certain extent due to various factors during transportation when the transport vehicles are transporting the wind turbine blades. In this case, it is necessary to repair the damaged paint on the surface of the wind turbine blades before assembling them. Conventional wind turbine blade maintenance is mostly done manually. Manual maintenance is convenient, but it is time-consuming and labor-intensive. In addition, during the maintenance process, workers need to climb up and down, which can easily damage the wind turbine blades. At the same time, there are certain safety hazards in the process of climbing up and down. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides a wind turbine blade paint damage repair device and repair method, which has the advantages of being able to automatically repair the damaged parts of the blade and automatically fix the position of the mobile vehicle, thereby solving the above-mentioned problems.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: a wind turbine blade paint damage repair device, comprising a mobile vehicle, a turntable frame provided on the mobile vehicle, a grinding mechanism, a scraping mechanism and a spraying mechanism provided on the circumference of the turntable frame, the grinding mechanism is used to grind the damaged paint surface, the scraping mechanism is used to repair the polished paint surface, and the spraying mechanism is used to paint the repaired 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 is used to drive the turntable frame to move back and forth horizontally on the mobile vehicle, and the adjusting mechanism is used to adjust the position of the turntable frame; The switching mechanism includes a switching rack and a switching gear. The switching rack is provided on the mobile vehicle. After the switching gear moves to the switching rack and engages with the switching rack, the switching gear can drive the turntable to rotate 120 degrees. The linkage mechanism includes a driving assembly, a rotating assembly, a downward moving assembly, a rubber suction cup and a cross bar. The driving assembly is used to drive the rotating assembly and the downward moving assembly. When the rotating assembly is in operation, it can drive the rubber suction cup to rotate 90 degrees. When the downward moving assembly is in operation, it can drive the cross bar to move downward.

[0005] Preferably, the turntable frame is rotatably connected to one end of the cross bar, 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 cross bar, a switching worm wheel is engaged with 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 driving assembly includes a driving motor, the outer side of the driving motor is fixedly connected to a fixing plate, the fixing plate is fixedly connected to the moving vehicle, the output shaft of the driving motor passes through the fixing plate and is fixedly connected to a driving gear, the two sides of the driving gear are respectively engaged with a lower rack and an upper rack, a rectangular hole is opened on the fixing plate, the rectangular holes are distributed on both sides of the fixing plate, a fixing rod is fixedly connected to the inner side of the rectangular hole, and the lower rack and the upper rack are slidably connected to the fixing rod.

[0007] Preferably, the rotating assembly includes a vacuum pump and a rotating shaft, and 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, and the rotating gear is engaged with the lower rack. A driving wheel is fixedly connected to the rotating shaft, and a toothed belt is engaged on the inner side of the driving wheel. The toothed belt is engaged with a driven wheel at one end away from the driving wheel, and the driving wheel and the driven wheel are fixedly connected to the rotating shaft.

[0008] Preferably, the rotating shaft is also fixedly connected to symmetrically distributed conical columns, 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 through connecting pipes, the rubber suction cups are connected to the vacuum pump through spring tubes, and the vacuum pump is fixedly connected to the mobile vehicle.

[0009] Preferably, the lower moving assembly includes a lower moving gear, and the upper moving rack can drive the lower moving gear to rotate when it moves. The outer side of the lower moving gear is fixedly connected to a lower moving worm, and the outer side of the lower moving worm is rotatably connected to a sliding plate, and the outer side of the lower moving worm is meshed with a lower moving worm wheel, and the lower worm wheel is rotatably connected to the sliding plate, and the lower worm wheel is coaxially fixedly connected to an adjusting gear, and the outer side of the adjusting gear is meshed with an adjusting rack, and the inner side of the adjusting rack is fixedly connected to a slider, and the inner side of the slider is slidably connected to a limiting hole, and the limiting hole is opened on the sliding plate, and the end of the slider away from the adjusting rack passes through the limiting hole and is fixedly connected to the cross bar.

[0010] Preferably, the reciprocating mechanism includes a base and a guide rod, one end of the base is fixedly connected to a fixed motor, the output shaft of the fixed motor passes through the base and is fixedly connected to a reciprocating screw rod, the sliding plate is slidably connected to the reciprocating screw rod, the guide rod is fixedly connected to the base, and the guide rods are distributed on both sides of the base, and 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 mobile 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 the slide rails are distributed on both sides of the base plate, the base is threadedly connected to the screw, and the base is slidably connected to the slide rail.

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

[0013] A method for repairing paint damage on a wind turbine blade uses the above-mentioned wind turbine blade paint damage repair equipment.

[0014] Compared with the prior art, the present invention provides a wind turbine blade paint damage repair device and repair method, which has the following beneficial effects: 1. According to the present invention, when the paint surface on the wind turbine blade needs to be repaired, the grinding mechanism and the reciprocating mechanism are driven to operate. The grinding mechanism operates to grind the damaged part of the paint surface. The reciprocating mechanism drives the turntable frame and the grinding mechanism to move horizontally in the direction of the switching rack. At this time, the grinding mechanism can fully grind the damaged part of the paint surface. The turntable frame is driven to move synchronously. When the reciprocating mechanism drives the switching gear to move to the position of the switching rack, the switching gear contacts and meshes with the switching rack. At this time, as the turntable frame moves, the switching rack drives the switching gear to rotate. The switching gear rotates and drives the turntable frame to rotate 120 degrees. At this time, the grinding mechanism is separated from the blade surface as the turntable frame rotates. When the turntable frame rotates, the scraping mechanism on the turntable frame gradually moves to the previous position of the grinding mechanism. The scraping mechanism is then operated to scrape the polished paint surface. Since the reciprocating mechanism is still in operation at this time, the reciprocating mechanism drives the scraping mechanism to move horizontally toward the driving component to scrape the paint, thereby fully repairing and scraping the damaged paint surface. Then the reciprocating mechanism drives the turntable frame and the scraping mechanism to move toward the switching rack again. Then, in the same way, the switching gear contacts the switching rack again. At this time, the switching rack drives the switching gear to rotate 120 degrees again. At this time, the turntable frame rotates again, thereby moving the spraying mechanism to the position of the scraping mechanism. Then, the spraying mechanism is used to spray the scraped position, thereby achieving the effect of automatic grinding, scraping and spraying the damaged paint surface, thereby avoiding the problem of manual repair, thereby improving ease of use.

[0015] 2. According to the present invention, after the mobile vehicle moves to the position specified by the user, the driving assembly is controlled to operate, and the driving assembly drives the rotating assembly and the lowering assembly to operate. The rotating assembly drives the rubber suction cup to flip 90 degrees. At this time, as the rubber suction cup flips, the rubber suction cup supports the mobile vehicle, and then the rubber suction cup is firmly adsorbed on the surface of the blade, thereby fixing the position of the mobile vehicle. While the rotating assembly is operating, the lowering assembly operates synchronously, and the operation of the lowering assembly drives the cross bar to move downward, and the downward movement of the cross bar drives the turntable frame to move downward. At this time, the grinding mechanism, scraping mechanism, and spraying mechanism on the turntable frame move to a position close to the blade, and then the damaged paint surface of the blade is repaired through the operation of the grinding mechanism, scraping mechanism, and spraying mechanism, thereby achieving automatic support for the mobile vehicle and fixing the position of the mobile vehicle, and automatically driving the grinding mechanism, scraping mechanism, and spraying mechanism to move to the optimal working position, thereby further improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] In the figure: 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 gear; 7. Linkage mechanism; 71. Driving assembly; 711. Driving motor; 712. Fixing plate; 713. Driving gear; 714. Lowering rack; 715. Upper rack; 716. Rectangular hole; 717. Fixing rod; 72. Rotating assembly; 721. Vacuum pump; 722. Rotating shaft; 723. Rotating gear Wheel; 724, driving wheel; 725, toothed belt; 726, driven wheel; 727, tapered cylinder; 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, cross bar; 8, reciprocating mechanism; 81, base; 82, fixed motor; 83, reciprocating screw; 85, guide rod; 9, adjusting mechanism; 91, bottom plate; 92, adjusting motor; 93, screw; 94, slide rail. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] As introduced in the background technology, in order to solve the deficiencies in the existing technology and the above technical problems, the present 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 equipment, including a mobile car 1, the four corners of the mobile car 1 are provided with motor-driven rollers, one end of the mobile car 1 is also fixedly connected to a symmetrically distributed sling ring, a control center is provided on the mobile car 1, the control center is used to control the operation of the grinding mechanism 3, the scraping mechanism 4, the spraying mechanism 5, the linkage mechanism 7, the reciprocating mechanism 8 and the adjustment mechanism 9, a turntable frame 2 is provided on the mobile car 1, and a grinding mechanism 3, a scraping mechanism 4 and a spraying mechanism 5 are arranged on the circumference of the turntable frame 2. The grinding mechanism 3 is used to grind the damaged part of the paint surface, the scraping mechanism 4 is used to fill the paint surface after grinding, and the spraying mechanism 5 is used to paint the paint surface after filling. The mobile car 1 is also provided with a switching mechanism 6, a linkage mechanism 7, a reciprocating mechanism 8 and an adjustment mechanism 9. The reciprocating mechanism 8 is used to drive the turntable frame 2 to move back and forth horizontally on the mobile car 1, and the adjustment mechanism 9 is used to adjust 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 provided on the mobile vehicle 1. After the switching gear 62 moves to the switching rack 61 and engages 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 rotating assembly 72, a downward moving assembly 73, a rubber suction cup 74 and a cross bar 75. A camera is provided on the cross bar 75 for observing paint damage and subsequent repairs. The drive assembly 71 is used to drive the rotating assembly 72 and the downward moving assembly 73. When the rotating assembly 72 is in operation, it can drive the rubber suction cup 74 to rotate 90 degrees. When the downward moving assembly 73 is in operation, it can drive the cross bar 75 to move downward.

[0021] When the blade is still on the transport vehicle, the mobile vehicle 1 is lifted onto the blade by the sling ring, and then the mobile vehicle 1 is moved to the specified position by the motor direct-drive roller, and then the driving component 71 is controlled to operate. After the driving component 71 operates, the rotating component 72 and the lowering component 73 are driven to operate. The rotating component 72 operates to drive the rubber suction cup 74 to flip 90 degrees. At this time, as the rubber suction cup 74 flips, the rubber suction cup 74 supports the mobile vehicle 1, and then the rubber suction cup 74 is firmly adsorbed on the surface of the blade, thereby fixing the position of the mobile vehicle 1. While the rotating component 72 is operating, the lowering component 73 operates synchronously, and the operation of the lowering component 73 drives The movable crossbar 75 moves downward, and the downward movement of the crossbar 75 drives the turntable frame 2 to move downward. At this time, the grinding mechanism 3, the scraping mechanism 4, and the spraying mechanism 5 on the turntable frame 2 are moved to the optimal working position. After that, the position of the turntable frame 2 is adjusted by the adjusting mechanism 9, and the reciprocating mechanism 8 and the grinding mechanism 3 are driven to operate. The grinding mechanism 3 operates to grind the damaged part of the blade. The reciprocating mechanism 8 drives the turntable frame 2 and the grinding mechanism 3 to move horizontally in the direction of the switching rack 61. At this time, the grinding mechanism 3 realizes mobile grinding, thereby fully grinding the damaged part of the paint surface. When the turntable frame 2 moves, it drives the switching gear 62 to move synchronously. When the reciprocating mechanism 8 drives the switching gear 6 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 frame 2 moves, the switching rack 61 drives the switching gear 62 to rotate, and the switching gear 62 rotates to drive the turntable frame 2 to rotate 120 degrees. At this time, the grinding mechanism 3 separates from the blade surface as the turntable frame 2 rotates. As the turntable frame 2 rotates, the scraping mechanism 4 on the turntable frame 2 gradually moves to a position perpendicular to the blade. Then the scraping mechanism 4 operates to scrape the polished paint surface. Since the reciprocating mechanism 8 is still in operation at this time, the reciprocating mechanism 8 drives the scraping mechanism 4 to move horizontally toward the driving component 71 to scrape the paint. In this way, the damaged parts of the paint surface are fully repaired and scraped. After that, after the putty is completely dry, the reciprocating mechanism 8 drives the turntable frame 2 and the scraping mechanism 4 to move toward the switching rack 61 again. Similarly, the switching gear 62 contacts the switching rack 61 again. At this time, the switching rack 61 drives the switching gear 62 to rotate 120 degrees again. At this time, the turntable frame 2 rotates again, thereby moving the spraying mechanism 5 to the position of the scraping mechanism 4. Then, the spraying mechanism 5 sprays the scraped position, thereby achieving the effect of automatic grinding, scraping and spraying of the damaged parts, thereby avoiding the time-consuming and labor-intensive manual repair and certain safety hazards. It should be noted that, in the initial state, the grinding mechanism 3 is located at the bottom surface of the turntable frame 2, and during grinding, the user controls the operating speed of the reciprocating mechanism 8 to fully grind the damaged part of the blade, and after the putty is scraped, the putty is dried by using an external drying device before spraying; The grinding mechanism 3 in this application is a grinding device composed of a grinding motor and a grinding disc in the prior art, and the scraping mechanism 4 adopts the putty extrusion mechanism in the Chinese patent CN202010169944.7 A plywood edge filling machine and its automatic edge filling process, and the spraying mechanism 5 adopts the spraying mechanism in the Chinese patent CN202111262529.7 A anti-corrosion coating spraying equipment for wind turbine blades. Since the above-mentioned grinding mechanism 3, scraping mechanism 4, and spraying mechanism 5 are all prior art, this application will not go into details again.

[0022] Example 2: See Figures 1-11 , which is different from the above-mentioned embodiment 1, is that the driving assembly 71 includes a driving motor 711, the outer side of the driving motor 711 is fixedly connected to a fixing plate 712, the fixing plate 712 is fixedly connected to the mobile vehicle 1, the output shaft of the driving motor 711 passes through the fixing plate 712 and is fixedly connected to a driving gear 713, the two sides of the driving gear 713 are respectively engaged with a downward moving rack 714 and an upward moving rack 715, a rectangular hole 716 is opened on the fixing plate 712, and the rectangular holes 716 are distributed on both sides of the fixing plate 712, and the inner side of the rectangular hole 716 is fixedly connected to the fixing rod 71 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 mobile vehicle 1. The rotating shaft 722 is fixedly connected to a rotating gear 723. The rotating gear 723 is engaged with the lower rack 714. The rotating shaft 722 is fixedly connected to a driving wheel 724. The inner side of the driving wheel 724 is engaged with a toothed belt 725. The toothed belt 725 is engaged with a driven wheel 726 at one end away from the driving wheel 724. The driving wheel 724 and the driven wheel 726 are fixed. The rotating shaft 722 is connected to the rotating shaft 722, and the rotating shaft 722 is also fixedly connected to a symmetrically distributed conical column 727. The rubber suction cup 74 is fixedly connected to the inner side of the conical column 727, and the rubber suction cup 74 distributed on one side is connected through a connecting pipe. The rubber suction cup 74 is connected to the vacuum pump 721 through a spring tube. The vacuum pump 721 is fixedly connected to the mobile vehicle 1. The lowering component 73 includes a lowering gear 731. When the upper rack 715 moves, it can drive the lowering gear 731 to rotate. The outer side of the lowering gear 731 is fixedly connected to the lowering worm 732. The outer side of the lowering worm 732 rotates A sliding plate 733 is connected, and a downward worm gear 734 is engaged with the outer side of the downward worm 732. The downward worm gear 734 is rotatably connected to the sliding plate 733. The downward worm gear 734 is coaxially fixedly connected to an adjusting gear 735. An adjusting rack 736 is engaged with the outer side of the adjusting gear 735. A slider 737 is fixedly connected to the inner side of the adjusting rack 736. The inner side of the slider 737 is slidably connected to a limiting hole 738. The limiting hole 738 is provided on the sliding plate 733. The end of the slider 737 away from the adjusting rack 736 passes through the limiting hole 738 and is fixedly connected to the cross bar 75. When in use, the mobile car 1 is driven to move to the specified position, and then the driving motor 711 drives the driving gear 713 to rotate. The driving gear 713 rotates and drives the lower rack 714 and the upper rack 715 to move along the fixed rod 717 to the bottom and top of the fixed plate 712. The lower rack 714 moves and drives the rotating gear 723 to rotate. The rotating gear 723 rotates and drives the rotating shaft 722 to rotate. The rotating shaft 722 drives the driving wheel 724 to rotate. The driving wheel 724 rotates and drives the driven wheel 726 to rotate through the toothed belt 725. At this time, the conical column 727 on the rotating shaft 722 rotates 90 degrees. The rotation of the conical column 727 drives the rubber suction cup 74 to rotate. At this time, the conical column 727 lifts the mobile car 1, and the bottom surface of the rubber suction cup 74 contacts the surface of the blade. Then, through the operation of the vacuum pump 721, the rubber suction cup 74 is firmly adsorbed on the blade. After the rubber suction cup 74 is adsorbed on the blade, the position of the mobile car 1 is also fixed, and the upper rack 715 The movement drives the downward gear 731 to rotate, the downward gear 731 rotates and drives the downward worm 732 to rotate, the downward worm 732 rotates and drives the downward worm wheel 734 to rotate, the downward worm wheel 734 rotates and drives the adjusting gear 735 to rotate, the adjusting gear 735 rotates and drives the adjusting rack 736 to move downward, the adjusting rack 736 moves downward and drives the slider 737 to move downward along the limiting hole 738, the slider 737 moves downward and drives the cross bar 75 to move downward, the cross bar 75 moves downward and drives the turntable frame 2 to move downward, thereby While fixing the position of the mobile vehicle 1, the grinding mechanism 3, the scraping mechanism 4, and the spraying mechanism 5 can be automatically moved to the optimal working position. Moreover, by setting the downward worm 732 and the downward worm wheel 734, after the upward rack 715 drives the cross bar 75 to move downward, the downward worm 732 and the downward worm wheel 734 can lock the adjusting gear 735, thereby avoiding the problem of reversal of the adjusting gear 735 after the downward gear 731 is separated from the upward rack 715.

[0023] Example 3, see Figures 1-11 , different from the above-mentioned embodiment 2, the turntable frame 2 is rotatably connected to one end of the cross bar 75, and a ratchet structure 621 is provided on the inner side of the switching gear 62, and a switching worm 622 is fixedly connected to the inner side of the ratchet structure 621, and the switching worm 622 is rotatably connected to the cross bar 75, and the outer side of the switching worm 622 is meshed with a switching worm wheel 623, and the switching worm wheel 623 is coaxially arranged with the turntable frame 2, and when the switching worm wheel 623 rotates, it can drive the turntable frame 2 to rotate, and 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, one end of the base 81 is fixedly connected to a fixed motor 82, and the output shaft of the fixed motor 82 passes through the base 81 and is fixedly connected to a reciprocating screw rod 83, the sliding plate 733 is slidably connected to the reciprocating screw rod 83, the guide rod 85 is fixedly connected to the base 81, and the guide rods 85 are distributed on both sides of the base 81, and the sliding plate 733 is slidably connected to the guide rod 85; When in use, the reciprocating screw 83 is driven to rotate by the fixed motor 82, and the reciprocating screw 83 rotates to drive the sliding plate 733 to move along the guide rod 85, and the sliding plate 733 moves to drive the lower moving component 73, the cross bar 75, the turntable frame 2, the grinding mechanism 3, the 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 engages with the switching rack 61. Then, as the sliding plate 733 and the cross bar 75 move, the switching rack 61 drives the switching gear 62 to rotate. The switching gear 62 rotates through the ratchet structure 621 inside it, driving the switching worm 622 to rotate, and the switching worm 622 rotates to drive the switching worm wheel 623 rotates, and the switching worm gear 623 rotates to drive the turntable frame 2 to rotate, thereby switching the grinding mechanism 3, the scraping mechanism 4, and the spraying mechanism 5. As the reciprocating screw 83 continues to rotate, after the grinding mechanism 3 finishes grinding the damaged part of the paint surface, the reciprocating screw 83 drives the turntable frame 2 to return to its position. During this process, the switching rack 61 drives the switching gear 62 to rotate. Since a ratchet structure 621 is set inside the switching gear 62, 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, thereby avoiding the problem that the grinding mechanism 3 will return to its original position again when the reciprocating screw 83 drives the sliding plate 733 to return to its position.

[0024] Example 4, see Figures 1-11 , which is different from the above-mentioned embodiment 3, is that the adjustment mechanism 9 includes a base plate 91 and a slide rail 94. The base plate 91 is fixedly connected to the mobile vehicle 1. An adjustment motor 92 is fixedly connected to the outer side 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 rails 94 are fixedly connected to the base plate 91 and are distributed on both sides of the base plate 91. The base 81 is threadedly connected to the screw 93, and the base 81 is slidably connected to the slide rails 94. When the position of the turntable frame 2 needs to be adjusted, the screw 93 is driven to rotate by adjusting the motor 92. The rotation of the screw 93 drives the base 81 to move along the slide rail 94. The movement of the base 81 drives 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 scraping mechanism 4, and the spraying mechanism 5, thereby improving the flexibility of the device.

[0025] A method for repairing paint damage on a wind turbine blade uses the above-mentioned wind turbine blade paint damage repair equipment.

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

Claims

1. A wind turbine blade paint damage repair device, comprising a mobile vehicle provided with a turntable frame, the turntable frame being circumferentially provided with a grinding mechanism, a scraping mechanism, and a spraying mechanism, the grinding mechanism being used to grind damaged areas on the paint surface, the scraping mechanism being used to apply putty to the polished paint surface, and the spraying mechanism being used to apply paint to the applied putty surface, characterized in that: The mobile vehicle is also provided with a switching mechanism, a linkage mechanism, a reciprocating mechanism and an adjusting mechanism. The reciprocating mechanism is used to drive the turntable frame to move horizontally back and forth on the mobile vehicle, and the adjusting mechanism is used to adjust the position of the turntable frame. The switching mechanism includes a switching rack and a switching gear. The switching rack is provided on the mobile vehicle. After the switching gear moves to the switching rack and engages with the switching rack, the switching gear can drive the turntable to rotate 120 degrees. The linkage mechanism includes a driving assembly, a rotating assembly, a downward moving assembly, a rubber suction cup and a cross bar. The driving assembly is used to drive the rotating assembly and the downward moving assembly. When the rotating assembly is in operation, it can drive the rubber suction cup to rotate 90 degrees. When the downward moving assembly is in operation, it can drive the cross bar to move downward.

2. The wind turbine blade paint damage repair device according to claim 1, characterized in that: The turntable frame is rotatably connected to one end of the cross bar, 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 cross bar, a switching worm wheel is engaged with 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.

3. The wind turbine blade paint damage repair device according to claim 1, characterized in that: The driving assembly includes a driving motor, a fixed plate fixedly connected to the outer side of the driving motor, the fixed plate fixedly connected to the mobile vehicle, the output shaft of the driving motor passes through the fixed plate and is fixedly connected to the driving gear, a lower rack and an upper rack are respectively engaged on both sides of the driving gear, a rectangular hole is opened on the fixed plate, the rectangular holes are distributed on both sides of the fixed plate, a fixed rod is fixedly connected to the inner side of the rectangular hole, and the lower rack and the upper rack are slidably connected to the fixed rod.

4. The wind turbine blade paint damage repair device according to claim 3, characterized in that: The rotating assembly includes a vacuum pump and a rotating shaft, which is distributed on both sides of the bottom of the mobile vehicle. A rotating gear is fixedly connected to the rotating shaft, and the rotating gear is engaged with the lower rack. A driving wheel is fixedly connected to the rotating shaft, and a toothed belt is engaged on the inner side of the driving wheel. The toothed belt is engaged with a driven wheel at one end away from the driving wheel, and the driving wheel and the driven wheel are fixedly connected to the rotating shaft.

5. The wind turbine blade paint damage repair device according to claim 4, characterized in that: The rotating shaft is also fixedly connected to symmetrically distributed conical columns, 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 through connecting pipes. The rubber suction cups are connected to the vacuum pump through spring tubes, and the vacuum pump is fixedly connected to the mobile vehicle.

6. The wind turbine blade paint damage repair device according to claim 5, characterized in that: The outer side of the lower gear is meshed with the adjusting rack, and the inner side of the adjusting rack is fixedly connected to the sliding plate, and the inner side of the slider is slidably connected to the limiting hole, and the limiting hole is opened on the sliding plate, and the end of the slider away from the adjusting rack passes through the limiting hole and is fixedly connected to the cross bar.

7. The wind turbine blade paint damage repair device according to claim 6, characterized in that: The reciprocating mechanism includes a base and a guide rod, one end of the base is fixedly connected to a fixed motor, the output shaft of the fixed motor passes through the base and is fixedly connected to a reciprocating screw rod, the sliding plate is slidably connected to the reciprocating screw rod, the guide rod is fixedly connected to the base, and the guide rods are distributed on both sides of the base, and the sliding plate is slidably connected to the guide rod.

8. The wind turbine blade paint damage repair device according to claim 7, characterized in that: The adjustment mechanism includes a base plate and a slide rail. The base plate is fixedly connected to the mobile 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 the slide rails are distributed on both sides of the base plate. The base is threadedly connected to the screw, and the base is slidably connected to the slide rail.

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

10. A method for repairing paint damage on a wind turbine blade, characterized by: The wind turbine blade paint damage repair device as described in any one of claims 1 to 9 is used.

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