Wind power generation fan blade paint spraying device

Abstract

The invention belongs to the technical field of spraying, and particularly relates to a wind power generation fan blade paint spraying device which comprises a connecting base, a walking mechanism, an adsorption mechanism, a paint spraying mechanism and a grinding mechanism. The connecting base is fixed to the power generation fan blade, the grinding mechanism is driven to move in the width direction of the paint removal damage area to grind the paint removal damage area, and the paint spraying mechanism is driven to move in the width direction of the paint removal damage area to spray paint on the paint removal damage area; the polishing wheel always abuts against the surface of the paint removal damage area and automatically adapts to the surface curvature; the connecting base is driven to move, and the depainting damage area with the length larger than that of the polishing wheel is polished and painted; during polishing and paint spraying, the adsorption mechanism fixes the connecting base, and the connecting base is prevented from sliding off from the surface plane of the power generation fan blade; the adsorption mechanism still enables the connecting base to be connected with the power generation fan blade, and the connecting base is prevented from sliding off from the surface plane of the power generation fan blade when the connecting base moves.

Description

Technical Field

[0001] The invention belongs to the field of spraying technology, in particular to a device for spraying paint on blades of a wind turbine. Background Art

[0002] Wind power generation converts the kinetic energy of wind into electrical energy. As a clean and renewable energy source, wind energy is increasingly valued by countries around the world. In a wind turbine, the blades capture wind energy. When the blades rotate, the three blades will reach a dynamic balance. If one blade is damaged, it will affect this dynamic balance and also affect the capture of wind energy. During the operation of a wind turbine, the blades will often lose paint and be damaged. If the paint is not repainted in time, it will cause greater damage to the blades. Therefore, the daily inspection and repair of wind turbine blades is a very important issue.

[0003] Generally, drones are used to inspect the blades, and then workers are lifted to the paint-removed area by a hanging basket, and the paint-removed area is manually polished and painted. This painting method is inefficient and has a high risk factor. Summary of the Invention

[0004] In order to make up for the shortcomings of the existing technology, the present invention proposes a wind turbine blade painting device. The present invention is mainly used to solve the problem that the current manual polishing and painting of the paint peeling area is low in efficiency and high in risk.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention provides a wind turbine blade painting device, comprising a connecting seat, a walking mechanism, an adsorption mechanism, a painting mechanism and a polishing mechanism;

[0006] The upper end of the connecting seat is fixedly connected to the drone; the lower end of the connecting seat is connected to the adsorption mechanism; the adsorption mechanism is used to fix the connecting seat and the generator fan blade;

[0007] The lower end of the connecting seat is connected to the walking mechanism; the walking mechanism is used to drive the connecting seat to move;

[0008] The connecting seat is slidably connected to a sliding seat; the sliding seat is slidably connected to a mounting seat; the mounting seat and the sliding seat are connected via a first elastic member; the mounting seat is connected to the grinding mechanism; the grinding mechanism is used to grind the paint-depleted damaged area;

[0009] The sliding seat is connected to the paint spraying mechanism; the paint spraying mechanism is used to spray paint on the paint-depleted damaged area;

[0010] The paint spraying device further comprises a telescopic mechanism and a lifting mechanism; the telescopic mechanism is used to drive the sliding seat to slide; the lifting mechanism is used to drive the mounting seat to slide.

[0011] Preferably, the paint spraying mechanism includes an air pump, a paint spray gun, a paint storage tank, a No. 1 connecting pipe and a No. 2 connecting pipe;

[0012] The air pump, the paint storage tank and the paint spray gun are fixedly connected to the sliding seat;

[0013] The air outlet of the air pump is connected to the air inlet of the paint spray gun through the No. 1 connecting pipe; the paint storage tank is connected to the paint inlet of the paint spray gun through the No. 2 connecting pipe; the No. 2 connecting pipe is connected to the No. 2 switch valve and the No. 2 pump body.

[0014] Preferably, the paint spraying device further comprises an air jet rod and a No. 3 connecting pipe;

[0015] The sliding seat is fixedly connected to the injection rod; the injection rod is evenly spaced with nozzle structures; the air inlet of the injection rod is connected to the air outlet of the air pump through the No. 3 connecting pipe; the No. 3 connecting pipe is connected to the No. 3 switch valve; the No. 1 connecting pipe is connected to the No. 1 switch valve.

[0016] Preferably, the adsorption mechanism includes a telescopic adsorption component, a driving component and a second elastic member; the telescopic adsorption component is spaced apart at the lower end of the connecting seat; the telescopic adsorption component includes a connecting member, a fixing cylinder, a sliding rod and a suction cup;

[0017] The fixing cylinders are evenly spaced below the connecting member; the fixing cylinders are fixedly connected to the connecting member; the sliding rods are slidably connected inside the fixing cylinders; the lower ends of the sliding rods are connected to the suction cups;

[0018] The driving assembly and the telescopic adsorption assembly are arranged in pairs; the connecting member is connected to the driving assembly; the driving assembly is used to drive the sliding rod to slide; the driving assembly is used to release the adsorption state of the suction cup;

[0019] The two inner connecting members are fixedly connected to the connecting seat; the two outer connecting members are slidably connected to the connecting seat;

[0020] The second elastic member is symmetrically arranged at both ends of the two outer connecting members; one end of the second elastic member is fixedly connected to the connecting member; and the other end of the second elastic member is fixedly connected to the connecting seat.

[0021] Preferably, the driving assembly includes a No. 5 connecting pipe, a piston column, an annular sealing ring, a No. 3 elastic member, a No. 3 rotating shaft, a driving motor, a No. 3 reel, a No. 3 pull rope and a No. 4 elastic member;

[0022] The upper end of the sliding rod is provided with a sliding groove; the side wall of the sliding groove is provided with a ventilation groove; the sliding rod is connected to the No. 5 connecting pipe; the upper end of the No. 5 connecting pipe is connected to the sliding groove; the lower end of the No. 5 connecting pipe is fixedly connected to the suction cup;

[0023] The piston rod is slidably connected in the sliding groove; the lower end of the piston rod is fixedly connected to the annular sealing ring; the outer ring side wall of the annular sealing ring is sealed with the inner wall of the sliding groove;

[0024] A limiting structure is provided at the upper end of the sliding rod; a No. 3 mounting groove is provided on the piston column; the No. 3 elastic member is arranged in the No. 3 mounting groove; one end of the No. 3 elastic member abuts against the limiting structure; the other end of the No. 3 elastic member abuts against the No. 3 mounting groove;

[0025] The connecting member is rotatably connected to the third rotating shaft; the connecting member is fixedly connected to the driving motor; the third rotating shaft rotates synchronously with the rotating shaft of the driving motor; the upper end of the fixed cylinder is provided with the third reel; the third reel is fixedly connected to the third rotating shaft; the third pull rope is wound around the third reel; the lower end of the third pull rope is fixedly connected to the piston column;

[0026] The fourth elastic member is arranged in the fixed cylinder; the upper end of the fourth elastic member abuts against the connecting member; and the lower end of the fourth elastic member abuts against the limiting structure.

[0027] The No. 5 connecting pipe is provided with a tubular structure; a one-way valve is fixedly connected to the tubular structure.

[0028] Preferably, a spherical groove is provided at the lower end of the sliding rod; a spherical connecting portion is provided at the upper end of the suction cup; and the spherical connecting portion abuts against the spherical groove.

[0029] Preferably, the telescopic mechanism includes a No. 1 sliding block, a No. 2 sliding block, a scissor mechanism, a power assembly and a connecting shaft;

[0030] The connecting seat is slidably connected to the first sliding block; the sliding seat is connected to the second sliding block; the sliding seat and the connecting seat are connected by the scissor mechanism; the scissor mechanism is symmetrically arranged on both sides of the first sliding block;

[0031] A support rod at one end of the scissor mechanism is hinged to the first sliding block; another support rod at one end of the scissor mechanism is hinged to the connecting seat; a support rod at the other end of the scissor mechanism is hinged to the second sliding block; another support rod at the other end of the scissor mechanism is hinged to the sliding seat;

[0032] The two scissor-fork mechanisms are connected via the connecting shaft; the power assembly is arranged on the connecting seat; and the power assembly is used to drive the support rods of the scissor-fork mechanisms to swing.

[0033] Preferably, the power assembly includes a No. 3 slider, a No. 3 motor and a threaded shaft;

[0034] The connecting seat is slidably connected to the No. 3 slider; one of the connecting shafts is rotatably connected to the No. 3 slider; the connecting seat is fixedly connected to the No. 3 motor; the threaded shaft is fixedly connected to the rotating shaft of the No. 3 motor; the threaded shaft is threadedly connected to the No. 3 slider.

[0035] Preferably, the walking mechanism includes walking wheels and a No. 4 motor;

[0036] The lower end of the connecting seat is rotatably connected to the walking wheel; the No. 4 motor is fixedly connected to the connecting seat; the No. 4 motor is used to drive the walking wheel to rotate.

[0037] Preferably, the lifting mechanism comprises a No. 5 motor, a No. 5 reel and a No. 5 pull rope;

[0038] The sliding seat is fixedly connected to the No. 5 motor; the rotating shaft of the No. 5 motor is fixedly connected to the No. 5 reel; the No. 5 pull rope is wound around the No. 5 reel; the lower end of the No. 5 pull rope is fixedly connected to the mounting seat.

[0039] The beneficial effects of the present invention are as follows:

[0040] 1. In the present invention, the adsorption mechanism fixes the connecting seat on the generator fan blade, so that the grinding wheel of the grinding mechanism contacts the generator fan blade, drives the grinding mechanism to move along the width direction of the paint peeling damage area, and grinds the entire surface of the paint peeling damage area, drives the grinding mechanism to move upward, and the paint spraying mechanism sprays paint on the local surface of the paint peeling damage area, drives the paint spraying mechanism to move along the width direction of the paint peeling damage area, and sprays paint on the entire surface of the paint peeling damage area; the first elastic member exerts a downward force on the mounting seat, so that the grinding wheel always contacts the surface of the paint peeling damage area, and automatically adapts to the wear of the paint peeling damage area. The curvature of the surface of the generator fan blade should be considered to improve the applicability of the grinding mechanism; the walking mechanism drives the connecting seat to move, and grinds and paints the area where the length of the paint peeling damage area is greater than the length of the grinding wheel, thereby improving the applicability of the painting device; when grinding and painting, the adsorption mechanism fixes the connecting seat to prevent the connecting seat from slipping off the surface of the generator fan blade, thereby improving the reliability of the painting device; before the walking mechanism works, the adsorption mechanism still keeps the connecting seat and the generator fan blade connected, preventing the connecting seat from slipping off the surface of the generator fan blade when the connecting seat moves, thereby improving the reliability of the painting device.

[0041] 2. In the present invention, the air pump and the second pump body are operated by the controller, so that the second switch valve is opened, the gas generated by the air pump enters the paint spray gun, and the second pump body allows the paint to enter the paint spray gun. Under the action of the gas, the paint is sprayed through the paint spray gun onto the surface of the generator fan blade to perform the painting work.

[0042] 3. In the present invention, before polishing is completed and painting is carried out, the air pump is operated by the controller, the No. 1 switch valve and the No. 2 switch valve are closed, and the No. 3 switch valve is opened. The gas generated by the air pump enters the jet rod and is sprayed downward through the nozzle structure to blow away the dust generated by polishing, clean the surface of the paint-depleted damaged area, improve the adhesion between the paint surface and the bottom surface of the paint-depleted damaged area, and improve the quality of painting.

[0043] 4. In the present invention, the driving assembly drives the sliding rod to move downward, so that the suction cup contacts the surface of the generator fan blade, so that the suction cup is adsorbed on the surface of the generator fan blade, so that all the suction cups are adsorbed on the surface of the generator fan blade, and the two middle rows of suction cups fix the two middle connecting pieces on the surface of the generator fan blade, and fix the connecting seat on the surface of the generator fan blade; the controller is used to make the two middle driving assemblies work in reverse, and the driving assembly first releases the adsorption state of the two middle rows of suction cups, so that the two middle rows of suction cups are detached from the surface of the generator fan blade. At this time, the outer two rows of suction cups are still adsorbed on the surface of the generator fan blade, and the connecting seat forms a sliding connection with the two outer connecting pieces, and then the two rows of suction cups are moved. The walking mechanism drives the connecting seat to move a certain distance and stop moving, so that the two middle drive components work in the forward direction, so that the two middle rows of suction cups contact and adsorb on the surface of the generator fan blades, and the connecting seat is fixed on the surface of the generator fan blades, and the two outer drive components work in the reverse direction, so that the two outer rows of suction cups are separated from the surface of the generator fan blades, and under the action of the No. 2 elastic parts at both ends of the connecting member, the connecting member is moved toward the middle of the connecting seat until the elastic force of the No. 2 elastic parts at both ends is balanced and the connecting member remains stationary, and then the two outer drive components are made to work in the forward direction through the controller, so that the two outer rows of suction cups contact and adsorb on the surface of the generator fan blades, and the above work is repeated to drive the connecting seat to move.

[0044] 5. In the present invention, the No. 3 rotating shaft rotates forward, the No. 3 pull rope is loosened, and the sliding rod moves downward under the action of the elastic force of the No. 4 elastic part, so that the suction cup contacts and adsorbs on the surface of the generator fan blade, and then the elastic force of the No. 3 elastic part causes the piston column to move downward, and the air in the sliding groove enters the No. 5 connecting pipe and is discharged outward through the tubular structure. When the lower end of the piston column contacts the bottom surface of the sliding groove, the outer ring side wall of the annular sealing ring is sealed with the inner wall of the sliding groove to prevent external air from entering the suction cup, so that the suction cup remains in the adsorption state; the driving motor drives the No. 3 rotating shaft to rotate in the opposite direction, winds the No. 3 pull rope, moves the piston column upward, and external air enters the suction cup, releasing the adsorption state of the suction cup, and continues to wind the No. 3 pull rope, driving the sliding rod to move upward, so that the suction cup is detached from the surface of the generator fan blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The present invention will be further described below with reference to the accompanying drawings.

[0046] Figure 1 It is a schematic diagram of the overall structure of the paint spraying device of the present invention;

[0047] Figure 2 It is a schematic diagram of the telescopic mechanism driving the sliding seat to move in the present invention;

[0048] Figure 3 Schematic diagram of the internal structure of the paint spraying device of the present invention;

[0049] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle;

[0050] Figure 5 yes Figure 3 A partial enlarged view of point B in the middle;

[0051] Figure 6 yes Figure 3 A partial enlarged view of point C in the middle;

[0052] Figure 7 yes Figure 3 A partial enlarged view of point D in the middle;

[0053] Figure 8 It is a schematic structural diagram of the traveling wheel in the present invention;

[0054] Figure 9 yes Figure 8 A partial enlarged view of point E in the middle;

[0055] Figure 10 It is a structural schematic diagram of the scissor-type mechanism of the present invention;

[0056] Figure 11 It is a structural diagram of the No. 3 slider in the present invention;

[0057] Figure 12 It is a structural schematic diagram of the sliding seat in the present invention;

[0058] Figure 13 yes Figure 12 A partial enlarged view of point F in the middle;

[0059] Figure 14 It is a structural schematic diagram of the connecting member in the present invention;

[0060] Figure 15 yes Figure 14 A partial enlarged view of point G in the middle;

[0061] Figure 16 It is a structural schematic diagram of the paint spray gun of the present invention;

[0062] In the figure: connecting seat 1, walking mechanism 2, walking wheel 21, No. 4 motor 22, adsorption mechanism 3, telescopic adsorption assembly 31, connecting piece 311, fixing cylinder 312, sliding rod 313, sliding groove 3131, ventilation groove 3132, limiting structure 3133, suction cup 314, spherical connecting part 3141, driving assembly 32, No. 5 connecting pipe 321, tubular structure 3211, one-way valve 3212, piston column 322, No. 3 mounting groove 3221, annular sealing ring 323, No. 3 elastic member 324, No. 3 rotating shaft 325, driving motor 326, No. 3 reel 327, No. 3 pull rope 328, No. 4 elastic member 329, No. 2 elastic member Parts 33, paint spraying mechanism 4, air pump 41, paint spray gun 42, paint storage tank 43, connecting pipe No. 1 44, switch valve No. 1 441, connecting pipe No. 2 45, switch valve No. 2 451, pump body No. 2 452, jet rod 46, connecting pipe No. 3 47, switch valve No. 3 471, grinding mechanism 5, grinding wheel 51, sliding seat 61, mounting seat 62, elastic part No. 1 63, telescopic mechanism 7, sliding block No. 1 71, sliding block No. 2 72, scissors mechanism 73, power assembly 74, slider No. 3 741, motor No. 3 742, threaded shaft 743, connecting shaft 75, lifting mechanism 8, motor No. 5 81, reel No. 5 82, pull rope No. 5 83. DETAILED DESCRIPTION

[0063] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0064] like Figures 1-16 As shown, a wind turbine blade painting device includes a connecting seat 1, a walking mechanism 2, an adsorption mechanism 3, a painting mechanism 4 and a polishing mechanism 5;

[0065] The upper end of the connecting base 1 is fixedly connected to the drone; the lower end of the connecting base 1 is connected to the adsorption mechanism 3; the adsorption mechanism 3 is used to fix the connecting base 1 and the generator fan blade;

[0066] The lower end of the connecting seat 1 is connected to the walking mechanism 2; the walking mechanism 2 is used to drive the connecting seat 1 to move;

[0067] The connecting seat 1 is slidably connected to a sliding seat 61; the sliding seat 61 is slidably connected to a mounting seat 62; the mounting seat 62 and the sliding seat 61 are connected via a first elastic member 63; the mounting seat 62 is connected to a grinding mechanism 5; the grinding mechanism 5 is used to grind the paint-depleted damaged area;

[0068] The sliding seat 61 is connected to the paint spraying mechanism 4; the paint spraying mechanism 4 is used to spray paint on the paint-depleted damaged area;

[0069] The paint spraying device further includes a telescopic mechanism 7 and a lifting mechanism 8; the telescopic mechanism 7 is used to drive the sliding seat 61 to slide; the lifting mechanism 8 is used to drive the mounting seat 62 to slide.

[0070] During operation, the maintenance personnel use the drone to bring the paint spraying device to the vicinity of the paint peeling damage area (the telescopic mechanism 7 drives the sliding seat 61 to move on a cross section of the generator wind turbine blade), and under the action of the gravity of the paint spraying device, the walking wheel 21 of the walking mechanism 2 is in contact with the surface of the generator wind turbine blade (the generator wind turbine blade rotates to a horizontal state and is locked), and then the adsorption mechanism 3 is activated by the controller (the maintenance personnel holds the controller, and a camera is installed on the sliding seat 61, and the camera is connected to the controller signal. The paint peeling damage area can be observed through the display panel of the controller), the adsorption mechanism 3 fixes the connecting seat 1 on the generator wind turbine blade, and then the telescopic mechanism 7 is activated by the controller, and the telescopic mechanism 7 drives the sliding seat 61 to move, so that the sliding seat 61 moves toward the paint peeling damage area. When the grinding wheel 51 of the grinding mechanism 5 (the grinding mechanism 5 includes the grinding wheel 51 and the power mechanism that drives the grinding wheel 51 to rotate) moves above the paint peeling damage area (the paint peeling damage area is parallel to the cross section of the generator wind turbine blade in the width direction, and the other direction is the length direction), the controller is used to activate the lifting mechanism 3. The structure 8 works in the reverse direction, and at the same time, the mounting seat 62 is moved downward under the action of the elastic force of the first elastic member 63, driving the grinding mechanism 5 to move downward, so that the grinding wheel 51 of the grinding mechanism 5 contacts the generator fan blade, and the grinding mechanism 5 is operated by the controller to drive the grinding wheel 51 to rotate, and the local surface of the paint-depleted damaged area is polished, and the sliding seat 61 is driven to move by the telescopic mechanism 7, and the grinding mechanism 5 is driven to move along the width direction of the paint-depleted damaged area to polish the entire surface of the paint-depleted damaged area, completing the polishing work of the paint-depleted damaged area, and then the lifting mechanism 8 is operated forward by the controller, and the lifting mechanism 8 drives the mounting seat 62 to move upward, driving the grinding mechanism 5 to move upward, when the distance between the mounting seat 62 and the sliding seat 61 is the shortest, the grinding wheel 51 is away from the surface of the generator fan blade, and then the paint spraying mechanism 4 is used to spray paint on the local surface of the paint-depleted damaged area, and the sliding seat 61 is driven to move by the telescopic mechanism 7 to drive the paint spraying mechanism 4 to move along the width direction of the paint-depleted damaged area to spray paint on the entire surface of the paint-depleted damaged area, completing the painting work of the paint-depleted damaged area;

[0071] Since the surface of the generator fan blade has a curvature, during the operation of the grinding mechanism 5, the first elastic member 63 exerts a downward force on the mounting seat 62, so that the grinding wheel 51 always contacts the surface of the paint-depleted damaged area, automatically adapting to the curvature of the surface of the generator fan blade (this curvature refers to the curvature on a cross section of the generator fan blade. The curvature in the longitudinal direction is relatively small. The grinding wheel 51 is made of a flexible material and can be appropriately deformed to adapt to the curvature in the longitudinal direction), thereby improving the applicability of the grinding mechanism 5. Before the paint spraying mechanism 4 is operated, the grinding wheel 51 of the grinding mechanism 5 is away from the surface of the generator fan blade to prevent the grinding wheel 51 from contacting the sprayed paint surface, thereby improving the reliability of the paint spraying device.

[0072] When the length of the paint-peeling damaged area is greater than the length of the grinding wheel 51, the grinding wheel 51 cannot complete the grinding of the entire surface in one lateral movement. After the grinding of the area with the length of the current grinding wheel 51 is completed, the controller releases the fixation of the connecting seat 1 by the adsorption mechanism 3, so that the connecting seat 1 can move in the length direction of the paint-peeling damaged area, and the walking mechanism 2 is operated. The walking mechanism 2 drives the connecting seat 1 to move, so that the grinding wheel 51 of the grinding mechanism 5 moves to the top of the unpolished area, and the adsorption mechanism 3 fixes the connecting seat 1, and then grinds the unpolished area until the grinding work of the entire surface of the paint-peeling damaged area is completed, and then the painting mechanism 4 is operated. After the painting mechanism 4 finishes painting the current area, the connecting seat 1 is driven by the walking mechanism 2 to move, so that the painting mechanism 4 moves to the top of the unpainted area, and paints the unpainted area until the painting work of the entire surface of the paint-peeling damaged area is completed. The area where the length of the paint-peeling damaged area is greater than the length of the grinding wheel 51 is polished and painted, thereby improving the applicability of the painting device;

[0073] During polishing and painting, the adsorption mechanism 3 secures the connection seat 1 to prevent it from sliding off the surface of the fan blades, thereby improving the reliability of the painting device. Before the travel mechanism 2 operates, although the controller releases the fixation of the adsorption mechanism 3 on the connection seat 1, allowing the connection seat 1 to move in the longitudinal direction of the paint-depleted damaged area, the adsorption mechanism 3 still maintains the connection between the connection seat 1 and the fan blades, preventing the connection seat 1 from sliding off the surface of the fan blades when the connection seat 1 moves, thereby improving the reliability of the painting device.

[0074] The controller's display panel can be used to observe the paint-peeling damaged area, so that the controller can control the paint spraying device and perform remote control, avoiding manual polishing and painting of the paint-peeling area, improving the efficiency of painting and at the same time improving the safety of painting.

[0075] The paint spraying mechanism 4 includes an air pump 41, a paint spray gun 42, a paint storage tank 43, a No. 1 connecting pipe 44 and a No. 2 connecting pipe 45;

[0076] The air pump 41, the paint storage tank 43 and the paint spray gun 42 are fixedly connected to the sliding seat 61;

[0077] The air outlet of the air pump 41 is connected to the air inlet of the paint spray gun 42 via a No. 1 connecting pipe 44; the paint storage tank 43 is connected to the paint inlet of the paint spray gun 42 via a No. 2 connecting pipe 45; the No. 2 connecting pipe 45 is connected to a No. 2 switch valve 451 and a No. 2 pump body 452.

[0078] When spraying paint, the air pump 41 and the second pump body 452 are operated through the controller, and the second switch valve 451 is opened. The gas generated by the air pump 41 enters the paint spray gun 42, and the second pump body 452 allows the paint to enter the paint spray gun 42. Under the action of the gas, the paint is sprayed through the paint spray gun 42 to the surface of the generator fan blade to carry out the painting work; the painting adopts air source spraying, and the spraying is uniform; after the painting is completed, the air pump 41 and the second pump body 452 are stopped, and the second switch valve 451 is closed.

[0079] The paint spraying device also includes an air jet rod 46 and a No. 3 connecting pipe 47;

[0080] The sliding seat 61 is fixedly connected to the jet rod 46; the jet rod 46 is evenly spaced with nozzle structures; the air inlet of the jet rod 46 is connected to the air outlet of the air pump 41 through the No. 3 connecting pipe 47; the No. 3 connecting pipe 47 is connected to the No. 3 switch valve 471; the No. 1 connecting pipe 44 is connected to the No. 1 switch valve 441.

[0081] Before polishing is completed and painting is performed, the air pump 41 is operated through the controller, the No. 1 switch valve 441 and the No. 2 switch valve 451 are closed, and the No. 3 switch valve 471 is opened. The gas generated by the air pump 41 enters the jet rod 46 and is sprayed downward through the nozzle structure to blow away the dust generated by polishing, clean the surface of the paint-depleted damaged area, improve the adhesion between the paint surface and the bottom surface of the paint-depleted damaged area, and improve the quality of painting; when painting, the No. 3 switch valve 471 is closed, the No. 2 switch valve 451 and the No. 1 switch valve 441 are opened, and the painting work is carried out.

[0082] The adsorption mechanism 3 includes a telescopic adsorption component 31, a driving component 32 and a second elastic member 33; the telescopic adsorption component 31 is spaced apart at the lower end of the connecting base 1; the telescopic adsorption component 31 includes a connecting member 311, a fixing cylinder 312, a sliding rod 313 and a suction cup 314;

[0083] Fixed cylinders 312 are evenly spaced below the connecting member 311; the fixed cylinders 312 are fixedly connected to the connecting member 311; a sliding rod 313 is slidably connected inside the fixed cylinder 312; and the lower end of the sliding rod 313 is connected to a suction cup 314;

[0084] The driving assembly 32 is provided in pairs with the telescopic adsorption assembly 31; the connecting member 311 is connected to the driving assembly 32; the driving assembly 32 is used to drive the sliding rod 313 to slide; the driving assembly 32 is used to release the adsorption state of the suction cup 314;

[0085] The two inner connecting pieces 311 are fixedly connected to the connecting seat 1; the two outer connecting pieces 311 are slidably connected to the connecting seat 1;

[0086] The second elastic member 33 is symmetrically arranged at both ends of the two outer connecting members 311 ; one end of the second elastic member 33 is fixedly connected to the connecting member 311 ; the other end of the second elastic member 33 is fixedly connected to the connecting seat 1 .

[0087] The maintenance personnel use the drone to bring the paint spraying device to the vicinity of the paint peeling damage, and after the walking wheel 21 is pressed against the surface of the generator wind blade under the action of its own gravity, the controller is used to make all the driving components 32 work in the forward direction, and the driving component 32 drives the sliding rod 313 to move downward, and the sliding rod 313 drives the suction cup 314 to move downward, so that the suction cup 314 is pressed against the surface of the generator wind blade, so that the suction cup 314 is adsorbed on the surface of the generator wind blade, so that all the suction cups 314 are adsorbed on the surface of the generator wind blade, and the two middle rows of suction cups 314 fix the two middle connecting parts 311 on the surface of the generator wind blade (the connecting parts 311 cannot move in the length and width directions. Under the action of the gravity of the paint spraying device, the walking wheel 21 is pressed against the surface of the generator wind blade, and the connecting parts 311 cannot move vertically, which is equivalent to fixing the two middle connecting parts 311 on the surface of the generator wind blade), and fix the connecting base 1 on the surface of the generator wind blade;

[0088] When the connecting seat 1 needs to move, the controller makes the two middle drive components 32 work in the reverse direction. The drive component 32 first releases the adsorption state of the two middle rows of suction cups 314, and then moves the corresponding sliding rod 313 upward to make the two middle rows of suction cups 314 detach from the surface of the power generation wind turbine blades. At this time, the two outer rows of suction cups 314 are still adsorbed on the surface of the power generation wind turbine blades, and the connecting seat 1 forms a sliding connection with the two outer connecting parts 311. Then, the walking mechanism 2 drives the connecting seat 1 to move a certain distance and stop moving. At this time, the No. 2 elastic part 33 at one end of the connecting part 311 is compressed to generate elastic force, and the No. 2 elastic part 33 at the other end is pulled to generate tension. Then, the two middle drive components 32 work forward, first moving the two middle rows of sliding rods 313 downward to make the two middle rows of suction cups 314 detach from the surface of the power generation wind turbine blades. The disk 314 contacts and is adsorbed on the surface of the generator fan blade, fixing the connecting seat 1 on the surface of the generator fan blade, and then the two outer drive components 32 are reversed. The drive component 32 first releases the adsorption state of the two outer rows of suction cups 314, and then moves the corresponding sliding rod 313 upward to disengage the two outer rows of suction cups 314 from the surface of the generator fan blade. Under the action of the No. 2 elastic members 33 at both ends of the connecting member 311, the connecting member 311 is moved toward the middle of the connecting seat 1 until the elastic force of the No. 2 elastic members 33 at both ends is balanced and the connecting member 311 remains stationary. Then, the two outer drive components 32 are made to work forward through the controller, so that the two outer rows of suction cups 314 contact and are adsorbed on the surface of the generator fan blade, and the above work is repeated to drive the connecting seat 1 to move;

[0089] When the connecting seat 1 moves, the two outer rows of suction cups 314 remain adsorbed on the surface of the generator fan blade, preventing the connecting seat 1 from sliding off the surface of the generator fan blade when the connecting seat 1 moves, thereby improving the reliability of the paint spraying device.

[0090] The driving assembly 32 includes a No. 5 connecting pipe 321, a piston rod 322, an annular sealing ring 323, a No. 3 elastic member 324, a No. 3 rotating shaft 325, a driving motor 326, a No. 3 reel 327, a No. 3 pull rope 328 and a No. 4 elastic member 329;

[0091] The upper end of the sliding rod 313 is provided with a sliding groove 3131; a ventilation groove 3132 is provided on the side wall of the sliding groove 3131; the sliding rod 313 is connected to the fifth connecting pipe 321; the upper end of the fifth connecting pipe 321 is connected to the sliding groove 3131; the lower end of the fifth connecting pipe 321 is fixedly connected to the suction cup 314;

[0092] The piston rod 322 is slidably connected in the sliding groove 3131; the lower end of the piston rod 322 is fixedly connected to the annular sealing ring 323; the outer ring side wall of the annular sealing ring 323 is sealed with the inner wall of the sliding groove 3131;

[0093] A limiting structure 3133 is provided at the upper end of the sliding rod 313; a third mounting groove 3221 is provided on the piston column 322; a third elastic member 324 is disposed in the third mounting groove 3221; one end of the third elastic member 324 abuts against the limiting structure 3133; the other end of the third elastic member 324 abuts against the third mounting groove 3221;

[0094] The connecting member 311 is rotatably connected to the third rotating shaft 325; the connecting member 311 is fixedly connected to the driving motor 326; the third rotating shaft 325 rotates synchronously with the rotating shaft of the driving motor 326; the upper end of the fixed cylinder 312 is provided with a third reel 327; the third reel 327 is fixedly connected to the third rotating shaft 325; the third pull rope 328 is wound around the third reel 327; the lower end of the third pull rope 328 is fixedly connected to the piston column 322;

[0095] A fourth elastic member 329 is disposed in the fixing tube 312 ; the upper end of the fourth elastic member 329 abuts against the connecting member 311 ; and the lower end of the fourth elastic member 329 abuts against the limiting structure 3133 .

[0096] A tubular structure 3211 is provided on the No. 5 connecting pipe 321 ; a one-way valve 3212 is fixedly connected to the tubular structure 3211 .

[0097] When the drive assembly 32 needs to work in the forward direction, the controller is used to operate the drive motor 326, which drives the third rotating shaft 325 to rotate forward, drives the third reel 327 to rotate forward, relaxes the third pull rope 328, and moves the sliding rod 313 downward under the elastic force of the fourth elastic member 329 (the elastic force of the fourth elastic member 329 is much greater than that of the third elastic member 324. When the third pull rope 328 is relaxed, the fourth elastic member 329 first extends and the third elastic member 324 remains compressed), so that the suction cup 314 moves downward, so that the suction cup 314 contacts and is adsorbed on the surface of the wind turbine blade (at this time, the elastic force of the fourth elastic member 329 is still greater than that of the third elastic member 324). The elastic force of the elastic member 324 causes the piston rod 322 to move downward, causing the lower end of the piston rod 322 to abut against the bottom surface of the sliding groove 3131. During this process, the air in the sliding groove 3131 enters the No. 5 connecting pipe 321 (the No. 5 connecting pipe 321 is a flexible tube) and is discharged outward through the tubular structure 3211 (the presence of the one-way valve 3212 only allows the air to move in one direction). When the lower end of the piston rod 322 abuts against the bottom surface of the sliding groove 3131, the outer side wall of the annular sealing ring 323 is sealed against the inner wall of the sliding groove 3131, preventing external air from entering the suction cup 314 through the ventilation groove 3132, the sliding groove 3131, and the No. 5 connecting pipe 321, thereby maintaining the suction cup 314 in the suction state.

[0098] When the drive assembly 32 needs to work in reverse, the driving motor 326 drives the third rotating shaft 325 to rotate in the opposite direction, drives the third reel 327 to rotate in the opposite direction, winds the third pull rope 328, resists the elastic force of the third elastic member 324, moves the piston column 322 upward, and makes the upper end of the piston column 322 abut against the limiting structure 3133 (at this time, the elastic force of the fourth elastic member 329 is still greater than the elastic force of the third elastic member 324). At this time, the piston column 322 moves to the top of the ventilation groove 3132. At this time, external air enters the suction cup 314 through the ventilation groove 3132, the sliding groove 3131, and the fifth connecting pipe 321, releases the adsorption state of the suction cup 314, and continues to wind the third pull rope 328, resists the elastic force of the fourth elastic member 329, drives the sliding rod 313 to move upward, drives the suction cup 314 to move upward, and causes the suction cup 314 to detach from the surface of the generator fan blade.

[0099] A spherical groove is formed at the lower end of the sliding rod 313 ; a spherical connecting portion 3141 is formed at the upper end of the suction cup 314 ; and the spherical connecting portion 3141 abuts against the spherical groove.

[0100] The spherical connecting portion 3141 is in contact with the spherical groove, the spherical connecting portion 3141 can rotate, the suction cup 314 can rotate, and the suction cup 314 can be adsorbed on the curved surface of the wind turbine blade, thereby improving the stability of the connecting seat 1 after being fixed.

[0101] The telescopic mechanism 7 includes a first sliding block 71, a second sliding block 72, a scissor mechanism 73, a power assembly 74 and a connecting shaft 75;

[0102] The connecting seat 1 is slidably connected to the first sliding block 71; the sliding seat 61 is connected to the second sliding block 72; the sliding seat 61 and the connecting seat 1 are connected by a scissor mechanism 73; the scissor mechanism 73 is symmetrically arranged on both sides of the first sliding block 71;

[0103] A support rod at one end of the scissor mechanism 73 is hinged to the first sliding block 71; another support rod at one end of the scissor mechanism 73 is hinged to the connecting seat 1; a support rod at the other end of the scissor mechanism 73 is hinged to the second sliding block 72; another support rod at the other end of the scissor mechanism 73 is hinged to the sliding seat 61;

[0104] The two scissor-fork mechanisms 73 are connected via a connecting shaft 75 ; a power assembly 74 is provided on the connecting seat 1 ; the power assembly 74 is used to drive the support rods of the scissor-fork mechanisms 73 to swing.

[0105] The power assembly 74 causes the support rod of the scissor-fork mechanism 73 to swing, so that the scissor-fork mechanism 73 extends or shortens, and drives the sliding seat 61 to slide.

[0106] The power assembly 74 includes a third slider 741 , a third motor 742 and a threaded shaft 743 ;

[0107] The connecting seat 1 is slidably connected to the third slider 741; one of the connecting shafts 75 is rotatably connected to the third slider 741; the connecting seat 1 is fixedly connected to the third motor 742; the threaded shaft 743 is fixedly connected to the rotating shaft of the third motor 742; the threaded shaft 743 is threadedly connected to the third slider 741.

[0108] The third motor 742 drives the threaded shaft 743 to rotate, drives the third slider 741 to slide at a constant speed, drives the connecting shaft 75 to move at a constant speed, makes the scissors mechanism 73 extend or shorten at a constant speed, drives the sliding seat 61 to move at a constant speed, improves the polishing quality during polishing, and improves the painting quality during painting.

[0109] The walking mechanism 2 includes a walking wheel 21 and a fourth motor 22;

[0110] The lower end of the connecting base 1 is rotatably connected to the walking wheel 21; the connecting base 1 is fixedly connected to the fourth motor 22; the fourth motor 22 is used to drive the walking wheel 21 to rotate.

[0111] The fourth motor 22 drives the running wheel 21 to rotate, so that the running wheel 21 rolls on the surface of the generator fan blade, driving the connecting seat 1 to move.

[0112] The lifting mechanism 8 includes a No. 5 motor 81, a No. 5 reel 82 and a No. 5 pull rope 83;

[0113] The sliding seat 61 is fixedly connected to the fifth motor 81; the rotating shaft of the fifth motor 81 is fixedly connected to the fifth reel 82; the fifth pull rope 83 is wound around the fifth reel 82; the lower end of the fifth pull rope 83 is fixedly connected to the mounting seat 62.

[0114] The fifth motor 81 drives the fifth reel 82 to rotate forward, loosens the fifth pull rope 83, and moves the mounting seat 62 downward under the action of the elastic force of the No. 1 elastic member 63, so that the grinding wheel 51 contacts the surface of the generator fan blade; the fifth motor 81 drives the fifth reel 82 to rotate reversely, winds the No. 5 pull rope 83, resists the elastic force of the No. 1 elastic member 63, moves the mounting seat 62 upward, and causes the grinding wheel 51 to detach from the surface of the generator fan blade.

[0115] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are protected by the present invention.

Claims

1. A wind turbine blade painting device, characterized by: It comprises a connecting seat (1), a walking mechanism (2), an adsorption mechanism (3), a painting mechanism (4) and a polishing mechanism (5); The upper end of the connecting seat (1) is fixedly connected to the drone; the lower end of the connecting seat (1) is connected to the adsorption mechanism (3); the adsorption mechanism (3) is used to fix the connecting seat (1) and the generator fan blade; The lower end of the connecting seat (1) is connected to the walking mechanism (2); the walking mechanism (2) is used to drive the connecting seat (1) to move; The connecting seat (1) is slidably connected to a sliding seat (61); the sliding seat (61) is slidably connected to a mounting seat (62); the mounting seat (62) and the sliding seat (61) are connected via a first elastic member (63); the mounting seat (62) is connected to the grinding mechanism (5); the grinding mechanism (5) is used to grind the paint-depleted damaged area; The sliding seat (61) is connected to the paint spraying mechanism (4); the paint spraying mechanism (4) is used to spray paint on the paint-depleted damaged area; The paint spraying device further comprises a telescopic mechanism (7) and a lifting mechanism (8); the telescopic mechanism (7) is used to drive the sliding seat (61) to slide; the lifting mechanism (8) is used to drive the mounting seat (62) to slide.

2. A wind turbine blade painting device according to claim 1, characterized in that: The paint spraying mechanism (4) comprises an air pump (41), a paint spray gun (42), a paint storage tank (43), a No. 1 connecting pipe (44) and a No. 2 connecting pipe (45); The air pump (41), the paint storage tank (43) and the paint spray gun (42) are fixedly connected to the sliding seat (61); The air outlet of the air pump (41) and the air inlet of the paint spray gun (42) are communicated through the first connecting pipe (44); the paint storage tank (43) and the paint inlet of the paint spray gun (42) are communicated through the second connecting pipe (45); the second connecting pipe (45) is connected to a second switch valve (451) and a second pump body (452).

3. A wind turbine blade painting device according to claim 2, characterized in that: The paint spraying device further comprises an air injection rod (46) and a third connecting pipe (47); The sliding seat (61) is fixedly connected to the jet rod (46); the jet rod (46) is evenly spaced with nozzle structures; the air inlet of the jet rod (46) and the air outlet of the air pump (41) are connected through the No. 3 connecting pipe (47); the No. 3 connecting pipe (47) is connected to the No. 3 switch valve (471); the No. 1 connecting pipe (44) is connected to the No. 1 switch valve (441).

4. A wind turbine blade painting device according to claim 3, characterized in that: The adsorption mechanism (3) includes a telescopic adsorption component (31), a driving component (32) and a second elastic component (33); the telescopic adsorption component (31) is spaced apart at the lower end of the connecting seat (1); the telescopic adsorption component (31) includes a connecting member (311), a fixing cylinder (312), a sliding rod (313) and a suction cup (314); The fixing cylinders (312) are evenly spaced below the connecting member (311); the fixing cylinders (312) are fixedly connected to the connecting member (311); the sliding rod (313) is slidably connected inside the fixing cylinder (312); the lower end of the sliding rod (313) is connected to the suction cup (314); The driving assembly (32) and the telescopic adsorption assembly (31) are arranged in pairs; the connecting member (311) is connected to the driving assembly (32); the driving assembly (32) is used to drive the sliding rod (313) to slide; the driving assembly (32) is used to release the adsorption state of the suction cup (314); The two inner connecting members (311) are fixedly connected to the connecting seat (1); the two outer connecting members (311) are slidably connected to the connecting seat (1); The second elastic member (33) is symmetrically arranged at both ends of the two outer connecting members (311); one end of the second elastic member (33) is fixedly connected to the connecting member (311); and the other end of the second elastic member (33) is fixedly connected to the connecting seat (1).

5. The wind turbine blade painting device according to claim 4, characterized in that: The driving assembly (32) includes a No. 5 connecting pipe (321), a piston rod (322), an annular sealing ring (323), a No. 3 elastic member (324), a No. 3 rotating shaft (325), a driving motor (326), a No. 3 reel (327), a No. 3 pull rope (328) and a No. 4 elastic member (329); The upper end of the sliding rod (313) is provided with a sliding groove (3131); a venting groove (3132) is provided on the side wall of the sliding groove (3131); the sliding rod (313) is connected to the fifth connecting pipe (321); the upper end of the fifth connecting pipe (321) is communicated with the sliding groove (3131); the lower end of the fifth connecting pipe (321) is fixedly connected to the suction cup (314); The piston column (322) is slidably connected in the sliding groove (3131); the lower end of the piston column (322) is fixedly connected to the annular sealing ring (323); the outer ring side wall of the annular sealing ring (323) is sealed to the inner wall of the sliding groove (3131); The upper end of the sliding rod (313) is provided with a limiting structure (3133); the piston column (322) is provided with a No. 3 mounting groove (3221); the No. 3 elastic member (324) is arranged in the No. 3 mounting groove (3221); one end of the No. 3 elastic member (324) abuts against the limiting structure (3133); the other end of the No. 3 elastic member (324) abuts against the No. 3 mounting groove (3221); The connecting member (311) is rotatably connected to the third rotating shaft (325); the connecting member (311) is fixedly connected to the driving motor (326); the third rotating shaft (325) rotates synchronously with the rotating shaft of the driving motor (326); the upper end of the fixed cylinder (312) is provided with the third reel (327); the third reel (327) is fixedly connected to the third rotating shaft (325); the third pull rope (328) is wound around the third reel (327); the lower end of the third pull rope (328) is fixedly connected to the piston column (322); The fourth elastic member (329) is arranged in the fixing tube (312); the upper end of the fourth elastic member (329) abuts against the connecting member (311); and the lower end of the fourth elastic member (329) abuts against the limiting structure (3133). The No. 5 connecting pipe (321) is provided with a tubular structure (3211); a one-way valve (3212) is fixedly connected to the tubular structure (3211).

6. The wind turbine blade painting device according to claim 5, characterized in that: The lower end of the sliding rod (313) is provided with a spherical groove; the upper end of the suction cup (314) is provided with a spherical connecting portion (3141); the spherical connecting portion (3141) is in contact with the spherical groove.

7. The wind turbine blade painting device according to claim 6, characterized in that: The telescopic mechanism (7) comprises a first sliding block (71), a second sliding block (72), a scissor mechanism (73), a power assembly (74) and a connecting shaft (75); The connecting seat (1) is slidably connected to the first sliding block (71); the sliding seat (61) is connected to the second sliding block (72); the sliding seat (61) and the connecting seat (1) are connected via the scissor mechanism (73); the scissor mechanism (73) is symmetrically arranged on both sides of the first sliding block (71); A support rod at one end of the scissor mechanism (73) is hinged to the first sliding block (71); another support rod at one end of the scissor mechanism (73) is hinged to the connecting seat (1); a support rod at the other end of the scissor mechanism (73) is hinged to the second sliding block (72); another support rod at the other end of the scissor mechanism (73) is hinged to the sliding seat (61); The two scissor-fork mechanisms (73) are connected via the connecting shaft (75); the power assembly (74) is provided on the connecting seat (1); the power assembly (74) is used to drive the support rods of the scissor-fork mechanisms (73) to swing.

8. The wind turbine blade painting device according to claim 7, characterized in that: The power assembly (74) includes a third slider (741), a third motor (742) and a threaded shaft (743); The connecting seat (1) is slidably connected to the third slider (741); one of the connecting shafts (75) is rotatably connected to the third slider (741); the connecting seat (1) is fixedly connected to the third motor (742); the rotating shaft of the third motor (742) is fixedly connected to the threaded shaft (743); the threaded shaft (743) is threadedly connected to the third slider (741).

9. The wind turbine blade painting device according to claim 8, characterized in that: The walking mechanism (2) includes a walking wheel (21) and a fourth motor (22); The lower end of the connecting seat (1) is rotatably connected to the walking wheel (21); the connecting seat (1) is fixedly connected to the fourth motor (22); the fourth motor (22) is used to drive the walking wheel (21) to rotate.

10. The wind turbine blade painting device according to claim 9, characterized in that: The lifting mechanism (8) comprises a No. 5 motor (81), a No. 5 reel (82) and a No. 5 pull rope (83); The sliding seat (61) is fixedly connected to the No. 5 motor (81); the rotating shaft of the No. 5 motor (81) is fixedly connected to the No. 5 reel (82); the No. 5 pull rope (83) is wound around the No. 5 reel (82); the lower end of the No. 5 pull rope (83) is fixedly connected to the mounting seat (62).

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