Equipment for processing surface coating of wind power blade and coating film method

Abstract

The present invention discloses a device and a coating method for processing the surface coating of a wind power blade, including a device base. A support frame is fixedly installed at the upper left end of the device base, and a clamping seat penetrates through the middle of the support frame. A wind power blade body is embedded on the right side of the clamping seat. Slide rails are symmetrically installed at the front and rear of the upper end of the device base, and a support rod is installed on the upper end of the slide rail. The upper end of the support rod is connected to a movable frame. A liquid storage tank is fixedly installed at the upper right end of the movable frame, and a power motor is fixedly installed on the upper end of the liquid storage tank. For the device and the coating method for processing the surface coating of the wind power blade, by setting a piston-type liquid supply structure, the liquid supply amount during spraying can be effectively controlled, and the liquid supply amount can be correspondingly increased according to the moving speed of the spray head to ensure the overall spraying thickness and uniformity of the wind power blade body, improve the spraying quality. At the same time, with the cooperation of a stirring structure, the precipitation of the spraying liquid can be prevented, resulting in the blockage of spraying, and the influence on the spraying quality can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade processing, and specifically to an apparatus and a coating method for processing the surface coating of wind turbine blades. Background Art

[0002] Wind turbine blades are the core components in wind turbines that convert natural wind energy in nature into electrical energy of wind turbine generator sets, and are also the main basis for measuring the design and technical level of wind turbine generator sets. Wind turbine blades are components of wind turbines. With the increase in the number of wind turbines in use, the demand for wind turbine blades also increases. Since most wind turbines are huge in size, the wind turbine blades used by them are necessarily large in volume. When spraying anti-corrosion coatings manually, it is quite laborious. To improve the spraying efficiency of anti-corrosion coatings on wind turbine blades, spraying equipment with a high degree of automation is required.

[0003] However, when the existing equipment and coating methods for processing the surface coating of wind turbine blades are in use, there are still certain problems:

[0004] Existing anti-corrosion coating spraying equipment for wind turbine blades, such as that disclosed in Chinese Patent Publication No. CN211613132U, includes a fixed base. On both sides of the upper surface of the fixed base, support vertical rods are fixedly installed. On the outer surface of the upper end of the support vertical rod, a threaded fixing rod is fixedly installed. Two threaded sleeve rings are threadedly installed on the outer surface of the threaded fixing rod. A sliding card slot is formed on the outer surface of the threaded sleeve ring. A nozzle fixing rod is arranged on the lower surface of the threaded sleeve ring. A sliding connection head is fixedly installed on the upper surface of the nozzle fixing rod. A spraying nozzle is fixedly installed on the lower surface of the nozzle fixing rod. A paint tank is fixedly installed on one side outer surface of the fixed base;

[0005] 1. The spraying range of the existing spraying equipment is small, while the surface area of wind turbine blades is relatively large. When this equipment is applied to the spraying of wind turbine blades, the position of the nozzle needs to be continuously changed to ensure complete coverage of the surface of the wind turbine blade. However, it is difficult for the continuously moving nozzle to ensure the same spraying thickness at multiple points, resulting in poor spraying quality;

[0006] 2. The spraying equipment can only spray on relatively flat surfaces. However, due to the large curvature at the edges of wind turbine blades, it cannot effectively and completely cover the spraying, and uneven spraying is also likely to occur when spraying at the edges with a large curvature, affecting the overall spraying quality;

[0007] 3. The existing spraying equipment cannot automatically flip to complete the spraying on the other side after spraying on one side, resulting in relatively low overall efficiency. And after spraying on one side, since it is not completely dry, if continuous spraying operation is required, the disassembly and assembly of the wind turbine blade need to be completed to replace the unsprayed blade, which increases the disassembly and assembly cost and reduces the overall working efficiency.

[0008] In view of the above problems, an innovative design is carried out on the basis of the original equipment and coating method for the surface coating processing of wind turbine blades. Summary of the Invention

[0009] The purpose of the present invention is to provide a device and a coating method for the surface coating processing of wind turbine blades, so as to solve the problems in the above-mentioned background technology that the existing spraying equipment for wind turbine blades has low spraying efficiency, poor spraying effect on the parts with large blade curvature, and cannot automatically flip for continuous spraying operation after one-sided spraying.

[0010] To achieve the above purpose, the present invention provides the following technical solution: A device for the surface coating processing of wind turbine blades, including a device base:

[0011] A support frame is fixed to the upper left end of the device base, and a clamping seat penetrates through the middle of the support frame. A wind turbine blade body is embedded on the right side of the clamping seat. Slide rails are symmetrically installed at the front and rear of the upper end of the device base, a support rod is installed on the upper end of the slide rail, and a movable frame is connected to the upper end of the support rod;

[0012] A liquid storage tank is fixed to the upper right end of the movable frame, and a power motor is fixed to the upper end of the liquid storage tank. A first spray head assembly is fixed to the lower end of the middle of the movable frame, and second spray head assemblies are symmetrically distributed on both sides of the front and rear of the first spray head assembly;

[0013] A sealing pipe is arranged inside the liquid storage tank, a piston is arranged inside the sealing pipe, and a reciprocating lead screw penetrates through the inside of the sealing pipe. A connecting frame is arranged at the bottom of the liquid storage tank, and a stirring rod is installed on the upper end of the connecting frame;

[0014] Drive rods are symmetrically installed at the front and rear ends of the movable frame, a first gear is fixed to the lower end of the drive rod, and a first rack is fixed to the upper end of the device base.

[0015] Preferably, the clamping seat is rotatably connected to the support frame, a positioning plate is hinged to the upper middle of the clamping seat, and the positioning plate is designed in an arc structure. The positioning plate and the clamping seat are shaped to form a tubular structure design. Clamping plates are slidably connected inside both the clamping seat and the positioning plate. The outer end of the clamping plate is rotatably connected to a threaded lead screw. The inner wall of the clamping plate is adapted to the outer wall of the wind turbine blade body. The clamping plates and the threaded lead screws are annularly arranged in three groups, and the three groups of threaded lead screws are respectively threadedly connected to the clamping seat and the positioning plate.

[0016] By adopting the above technical solution, through the cooperation between the clamping seat and the positioning plate, a tubular structure can be formed, and the positions of multiple groups of clamping plates can be adjusted by using the threaded lead screws. The wind turbine blade body is clamped and fixed by the clamping plates.

[0017] Preferably, a driving worm gear is fixedly connected to the left end of the clamping seat, and a driving worm is arranged at the rear side of the clamping seat. The lower end of the driving worm is rotatably connected to the equipment base, and the driving worm is meshed with the driving worm gear.

[0018] With the above technical solution, through the cooperation between the driving worm gear and the driving worm, when the driving worm rotates, it can drive the driving worm gear to rotate synchronously, and the driving worm gear drives the clamping seat and the wind power blade to rotate synchronously, which is convenient for rotating and turning over after spraying on one side is completed.

[0019] Preferably, a second gear is rotatably connected to the upper end of the driving worm, and an inner ratchet is fixed inside the second gear. A pawl is rotatably connected to the outer wall of the top end of the driving worm, and the pawl is meshed with the inner ratchet. A limiting spring is fixedly connected between the end of the pawl and the outer wall of the driving worm. A second rack is fixed to the left rear end of the movable frame, and the second rack is meshed with the second gear.

[0020] With the above technical solution, through the cooperation between the second gear and the second rack, after the movable frame drives the second rack to move horizontally and mesh with the second gear, the second gear can be driven to rotate, and the second gear drives the inner ratchet to rotate synchronously. Due to the cooperation between the inner ratchet and the pawl, the second gear can only drive the driving worm to rotate in one direction.

[0021] Preferably, the sliding rail is designed in a "T" shape, and the upper end of the sliding rail is slidably connected to the support rod. The support rods are symmetrically distributed at the four corners of the movable frame. The front and rear ends of the movable frame are respectively rotatably connected to the transmission rod, and a driven pulley is fixed to the upper end of the transmission rod. The two first racks are arranged in the same direction, and the first rack is meshed with the first gear. The lower end of the reciprocating screw rod penetrates through the liquid storage tank and the movable frame, and a driving pulley is fixedly connected to the bottom end of the reciprocating screw rod. A transmission belt is connected between the driving pulley and the driven pulley.

[0022] With the above technical solution, the design of the sliding rail can improve the support stability of the support rod and the movable frame. When the power motor rotates, it can drive the reciprocating screw rod and the driving pulley connected to the lower end to rotate. The driving pulley can provide rotational power for the driven pulley through the transmission belt, and the driven pulley drives the transmission rod and the first gear to rotate. Through the cooperation between the first gear and the first rack, power is provided for the horizontal movement of the movable frame.

[0023] Preferably, the piston is slidably connected to the sealing tube, and both the piston and the inner wall of the sealing tube are designed in a directional structure. Moreover, the piston is threadedly connected to the reciprocating lead screw. The lower end of the reciprocating lead screw is fixedly connected to the connecting frame, and the stirring rods are annularly distributed at the upper end of the connecting frame. The upper and lower ends of the sealing tube are respectively connected with a liquid outlet check valve and a liquid inlet check valve, and the liquid inlet check valve and the liquid outlet check valve are symmetrically distributed at the front and rear ends of the sealing tube. The two liquid inlet check valves are conductively connected to each other, and the two liquid inlet check valves are conductively connected to the inside of the liquid storage tank. The two liquid outlet check valves are conductively connected to each other, and the upper ends of the two liquid outlet check valves are conductively connected to the end of the first conduit.

[0024] With the above technical solution, through the threaded fit between the reciprocating lead screw and the piston, the piston can be driven to reciprocate inside the sealing tube when the reciprocating lead screw rotates. Thus, the liquid inside the liquid storage tank is sucked into the sealing tube by the liquid inlet check valve, and the liquid is transported to the first conduit by the liquid outlet check valve.

[0025] Preferably, the two ends of the first spray head assembly are slidably connected with a recovery box, and the lower end of the recovery box is fixedly connected to the second spray head assembly. Moreover, the second spray head assembly and the first spray head assembly are conductively connected by a second conduit.

[0026] With the above technical solution, the recovery box can facilitate the positioning and installation of the second spray head assembly. And the second spray head assembly can move synchronously with the recovery box, while the second conduit can keep the first spray head assembly and the second spray head assembly conductively connected to each other.

[0027] Preferably, positioning blocks are fixed at the front and rear upper ends of the first spray head assembly. A limiting rod penetrates through the positioning blocks, and the upper end of the recovery box is fixedly connected to the limiting rod. A return spring penetrates through the middle of the limiting rod, and both ends of the return spring are respectively connected to the positioning block and the recovery box. A collection pipe is conductively connected to the lower end of the recovery box. A collection box is fixed inside the support rod, and the collection box is conductively connected to the lower end of the collection pipe.

[0028] With the above technical solution, the positioning block can limit the movement range of the limiting rod. And the connection between the upper end of the recovery box and the limiting rod can improve the stability of the horizontal movement of the recovery box. At the same time, with the setting of the return spring, the smoothness of the recovery box's reset after moving towards the first spraying assembly can be improved.

[0029] Preferably, second limiting plates and first limiting plates are respectively arranged on the front and rear sides of the lower end of the wind power blade body. Limiting grooves are opened at the upper ends of the first limiting plate and the second limiting plate, and the shapes of the two limiting grooves are adapted to the edge shape of the wind power blade body. A limiting shaft is fixed at the lower end of the recovery box, and a limiting roller is rotatably connected to the lower end of the limiting shaft. The lower end of the limiting roller extends into the limiting groove, and the limiting roller is slidably connected to the limiting groove.

[0030] With the above technical solution, the limit roller is installed through the design of the limit shaft. When the movable frame translates, it drives the limit shaft and the limit roller to move synchronously, and the position of the limit roller is adjusted accordingly by using the design of the limit groove. Since the shape of the limit groove is similar to the edge of the wind turbine blade body, the movement track of the limit roller is restricted, so that the recycling box can move synchronously with the outer edge shape of the wind turbine blade, block the no-longer-needed spray heads and recycle the spraying liquid, ensuring the overall spraying efficiency while reducing the waste of the spraying liquid.

[0031] A coating film method for a wind turbine blade surface coating processing device, comprising the following steps:

[0032] Step 1: First, use the clamping structure to clamp and fix the wind turbine blade body. Pass the left end of the wind turbine blade body through the inside of the clamping seat, further rotate the positioning plate and fix it with the clamping seat to form a tubular structure, and then rotate a plurality of threaded lead screws in sequence. Drive a plurality of clamping plates to slide inside the clamping seat and the positioning plate respectively by using the threaded lead screws, so as to contact the left end of the wind turbine blade body through the clamping plates and complete the clamping and fixing.

[0033] Step 2: After completing the clamping and fixing of the wind turbine blade body, start the power motor to provide power for the liquid supply structure. Drive the reciprocating lead screw to rotate by using the power motor, and the reciprocating lead screw rotates to drive the piston to reciprocate inside the sealed tube, and the coating in the liquid storage tank is conveyed to the first spray head assembly and ejected by using the cooperation among the inlet check valve, the outlet check valve and the first conduit, and the second conduit is used for supplying liquid to the second spray head assembly synchronously, so as to ensure that the upper surface and the side surface of the wind turbine blade body can be sprayed synchronously.

[0034] Step 3: While the power motor drives the reciprocating lead screw to rotate, drive the driving pulley to rotate by using the reciprocating lead screw, and the driving pulley drives the driven pulley, the transmission rod and the first gear to rotate synchronously by using the transmission belt. The first gear cooperates with the first rack, and can move when the first gear rotates, and drives the movable frame to move synchronously to change the positions of the first spray head assembly and the second spray head assembly.

[0035] Step 4: After spraying one side of the wind turbine blade body, the movable frame moves from the right side of the equipment base to the left side, and drives the second rack to move to the left synchronously, so that the second rack meshes with the second gear. By using the cooperation of the inner ratchet and the pawl, the second gear can be used to drive the transmission worm to rotate unidirectionally, and the transmission worm can drive the transmission worm wheel and the clamping seat to rotate synchronously, so as to complete the flipping of the wind turbine blade body, and further carry out continuous spraying on the reverse side.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows: For the equipment and coating method for processing the surface coating of wind power blades, by setting a piston-type liquid supply structure, the liquid supply amount during spraying can be effectively controlled, and the liquid supply amount can be correspondingly increased according to the moving speed of the spray head to ensure the overall spraying thickness and uniformity of the wind power blade body, improve the spraying quality. At the same time, with the cooperation of a stirring structure, it can prevent the spraying liquid from precipitating and causing blockage during spraying, avoiding affecting the spraying quality.

[0037] 1. The spraying liquid supply structure can provide power for the movement of the spray head assembly synchronously, and the liquid supply and movement of the spray head are carried out simultaneously, making the movement and liquid supply of the spray head assembly interlocked. The moving speed and liquid supply amount of the spray head assembly can be adaptively adjusted, improving the convenience of use. Moreover, it can control the number of normal spraying spray heads according to the shape of the wind power blade body, avoid the waste of paint, and recycle the paint sprayed by the redundant spray heads.

[0038] 2. By setting a quick clamping structure to clamp and install the wind power blade, and using the worm and worm gear structure to position and limit the rotation of the clamping structure. After the movable frame moves to the bottom towards the clamping structure, the gear and rack structure can provide rotational power for the driving worm, thus automatically completing the flipping of the fan blade, improving the convenience and automation degree of the overall operation. And the flipped wind power blade can be directly sprayed on the reverse side without waiting, improving the efficiency of the overall operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a front view structural schematic diagram of the present invention;

[0040] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0041] Figure 3 It is a structural schematic diagram of the clamping seat and positioning plate of the present invention;

[0042] Figure 4 It is a structural schematic diagram of the threaded lead screw and clamping plate of the present invention;

[0043] Figure 5 It is a structural schematic diagram of the movable frame and second rack of the present invention;

[0044] Figure 6 It is a structural schematic diagram of the second conduit and second spray head assembly of the present invention;

[0045] Figure 7 It is a structural schematic diagram of the recovery box and collection pipe of the present invention;

[0046] Figure 8 It is a structural schematic diagram of the storage tank and power motor of the present invention;

[0047] Figure 9Schematic diagram of the connecting frame and stirring rod of the present invention;

[0048] Figure 10 Schematic diagram of the reciprocating lead screw and piston of the present invention;

[0049] Figure 11 Schematic diagram of the first limiting plate and limiting groove of the present invention;

[0050] Figure 12 Schematic diagram of the internal ratchet and ratchet pawl of the present invention.

[0051] In the figure: 1, equipment base; 2, support frame; 3, clamping seat; 4, positioning plate; 5, wind power blade body; 6, threaded lead screw; 7, clamping plate; 8, slide rail; 9, movable frame; 10, support rod; 11, first spray head assembly; 12, first conduit; 13, second spray head assembly; 14, second conduit; 15, liquid storage tank; 16, power motor; 17, sealing pipe; 18, piston; 19, reciprocating lead screw; 20, liquid outlet check valve; 21, liquid inlet check valve; 22, connecting frame; 23, stirring rod; 24, driving pulley; 25, transmission rod; 26, driven pulley; 27, transmission belt; 28, first gear; 29, first rack; 30, recycling box; 31, collecting pipe; 32, collecting box; 33, positioning block; 34, limiting rod; 35, return spring; 36, limiting shaft; 37, limiting roller; 38, first limiting plate; 39, second limiting plate; 40, limiting groove; 41, second rack; 42, driving worm gear; 43, driving worm; 44, second gear; 45, ratchet pawl; 46, limiting spring; 47, internal ratchet. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0053] Please refer to Figures 1-12, the present invention provides a technical solution: a device for processing the surface coating of a wind turbine blade, including a device base 1. At the upper left end of the device base 1, a support frame 2 is fixed. The middle of the support frame 2 is penetrated by a clamping seat 3. A wind turbine blade body 5 is embedded on the right side of the clamping seat 3. The clamping seat 3 is rotatably connected to the support frame 2. A positioning plate 4 is hinged to the upper middle of the clamping seat 3. The positioning plate 4 is designed in an arc structure. The positioning plate 4 and the clamping seat 3 are shaped to fit and form a tubular structure design. Clamping plates 7 are slidably connected inside both the clamping seat 3 and the positioning plate 4. The outer ends of the clamping plates 7 are rotatably connected to threaded lead screws 6. The inner walls of the clamping plates 7 are adapted to the outer walls of the wind turbine blade body 5. The clamping plates 7 and the threaded lead screws 6 are both distributed in three groups in a circular array. The three threaded lead screws 6 are respectively threadedly connected to the clamping seat 3 and the positioning plate 4. The clamping seat 3 is installed through the support frame 2. During use, the wind turbine blade body 5 is inserted into the clamping seat 3. At the same time, the positioning plate 4 is flipped and fixed to the clamping seat 3 by bolts to form a tubular structure design. By rotating the three threaded lead screws 6, the clamping plates 7 are driven to move inside the clamping seat 3 and the positioning plate 4 respectively, so as to clamp and fix the wind turbine blade body 5 by using the clamping plates 7, facilitating subsequent spraying operations.

[0054] On the upper end of the equipment base 1, slide rails 8 are symmetrically installed before and after, and on the upper end of the slide rails 8, support rods 10 are installed, and the upper ends of the support rods 10 are connected to a movable frame 9; on the upper right end of the movable frame 9, a liquid storage tank 15 is fixed, and on the upper end of the liquid storage tank 15, a power motor 16 is fixed. At the lower end of the middle part of the movable frame 9, a first spray head assembly 11 is fixed, and second spray head assemblies 13 are symmetrically distributed on the front and back sides of the first spray head assembly 11; inside the liquid storage tank 15, a sealing pipe 17 is arranged, and inside the sealing pipe 17, a piston 18 is arranged, and a reciprocating lead screw 19 penetrates through the sealing pipe 17. At the bottom of the liquid storage tank 15, a connecting frame 22 is arranged, and on the upper end of the connecting frame 22, a stirring rod 23 is installed; the slide rails 8 are designed in a "T" shape, and the upper end of the slide rails 8 is slidably connected to the support rods 10, and the support rods 10 are symmetrically distributed at the four corners of the movable frame 9; the piston 18 is slidably connected to the sealing pipe 17, and both the piston 18 and the inner wall of the sealing pipe 17 are designed in a directional structure, and the piston 18 is threadedly connected to the reciprocating lead screw 19. The lower end of the reciprocating lead screw 19 is fixedly connected to the connecting frame 22, and the stirring rods 23 are annularly arrayed on the upper end of the connecting frame 22. The upper and lower ends of the sealing pipe 17 are respectively connected to an out-flow check valve 21 and an in-flow check valve 20, and the in-flow check valve 20 and the out-flow check valve 21 are symmetrically distributed at the front and back ends of the sealing pipe 17. The two in-flow check valves 20 are conductively connected to each other, and the two in-flow check valves 20 are conductively connected to the inside of the liquid storage tank 15. The two out-flow check valves 21 are conductively connected to each other, and the upper ends of the two out-flow check valves 21 are conductively connected to the end of the first conduit 12; through the cooperation between the slide rails 8 and the support rods 10, the movable frame 9 can be supported, and at the same time, the stability during its horizontal movement can be ensured. The movable frame 9 can install and position the first spray head assembly 11. During spraying, the power motor 16 provides rotational power for the reciprocating lead screw 19. The reciprocating lead screw 19 can drive the piston 18 to reciprocate inside the sealing pipe 17, and during the movement, continuously suck the paint inside the liquid storage tank 15 into the sealing pipe 17 by using the in-flow check valve 20, and convey the paint to the first spray head assembly 11 by using the out-flow check valve 21 and the first conduit 12 to realize spraying. And when the reciprocating lead screw 19 rotates, it can drive the connecting frame 22 and multiple stirring rods 23 to rotate synchronously to stir the paint inside the liquid storage tank 15 to prevent the paint from precipitating and ensure the spraying quality.

[0055] The front and rear ends of the movable frame 9 are symmetrically installed with transmission rods 25, and a first gear 28 is fixed to the lower end of the transmission rod 25. A first rack 29 is fixed to the upper end of the equipment base 1. The front and rear ends of the movable frame 9 are respectively rotatably connected to the transmission rod 25, and a driven pulley 26 is fixed to the upper end of the transmission rod 25. The two first racks 29 are arranged in the same direction, and the first rack 29 is meshed with the first gear 28. The lower end of the reciprocating lead screw 19 passes through the liquid storage tank 15 and the movable frame 9, and the bottom end of the reciprocating lead screw 19 is fixedly connected with a driving pulley 24. A transmission belt 27 is connected between the driving pulley 24 and the driven pulley 26. When the reciprocating lead screw 19 rotates, it can drive the driving pulley 24 to rotate synchronously. The driving pulley 24 uses the transmission belt 27 to provide rotational power for the driven pulley 26, the transmission rod 25 and the first gear 28. Thus, the cooperation between the first gear 28 and the first rack 29 can be utilized to drive the movable frame 9 to horizontally move to adjust the position of the spraying assembly while the first gear 28 rotates. Moreover, the liquid supply structure and the moving structure are interlocked with each other, and the liquid supply speed and the liquid supply volume can be adjusted adaptively to the moving speed of the spraying structure, improving the uniformity of spraying.

[0056] Both ends of the first nozzle assembly 11 are slidably connected to a recovery box 30, and the lower end of the recovery box 30 is fixedly connected to the second nozzle assembly 13. A second conduit 14 is conductively connected between the second nozzle assembly 13 and the first nozzle assembly 11. Positioning blocks 33 are fixed to the front and rear upper ends of the first nozzle assembly 11. A limiting rod 34 passes through the positioning blocks 33, and the upper end of the recovery box 30 is fixedly connected to the limiting rod 34. A return spring 35 passes through the middle of the limiting rod 34, and both ends of the return spring 35 are respectively connected to the positioning blocks 33 and the recovery box 30. A collection pipe 31 is conductively connected to the lower end of the recovery box 30. A collection box 32 is fixed to the inner side of the support rod 10, and the collection box 32 is conductively connected to the lower end of the collection pipe 31. Second limit plates 39 and first limit plates 38 are respectively arranged on the front and rear sides of the lower end of the wind turbine blade body 5. Limiting grooves 40 are formed in the upper ends of the first limit plates 38 and the second limit plates 39. The shapes of the two groups of limiting grooves 40 are adapted to the edge shape of the wind turbine blade body 5. A limiting shaft 36 is fixed to the lower end of the recovery box 30, and a limiting roller 37 is rotatably connected to the lower end of the limiting shaft 36. The lower end of the limiting roller 37 extends into the limiting groove 40, and the limiting roller 37 is slidably connected to the limiting groove 40. Through the cooperation of the positioning blocks 33 and the limiting rod 34, the movement range of the limiting rod 34 can be restricted. The connection between the limiting rod 34 and the recovery box 30 further improves the horizontal movement stability of the recovery box 30. At the same time, since the lower end of the recovery box 30 is connected with the limiting shaft 36 and the limiting roller 37, while the movable frame 9 moves, the limiting roller 37 can drive the recovery box 30 to move accordingly according to the track of the limiting groove 40, control the number of effective spraying nozzles of the first nozzle assembly 11 according to the edge shape of the wind turbine blade body 5, and block the redundant nozzles. By using the cooperation of the collection pipe 31, the collection box 32 and the recovery box 30, the paint is further collected to avoid waste.

[0057] A driving worm gear 42 is fixedly connected to the left end of the clamping seat 3, and a driving worm 43 is arranged at the rear side of the clamping seat 3. The lower end of the driving worm 43 is rotatably connected to the equipment base 1, and the driving worm 43 is meshed with the driving worm gear 42; the upper end of the driving worm 43 is rotatably connected to a second gear 44, and an internal ratchet 47 is fixed inside the second gear 44. The outer wall of the top end of the driving worm 43 is rotatably connected to a pawl 45, and the pawl 45 is meshed with the internal ratchet 47. A limiting spring 46 is fixedly connected between the end of the pawl 45 and the outer wall of the driving worm 43. A second rack 41 is fixed to the left rear end of the movable frame 9, and the second rack 41 is meshed with the second gear 44; through the cooperation between the driving worm gear 42 and the driving worm 43, when the driving worm 43 rotates, the driving worm gear 42 and the clamping seat 3 can be driven to rotate synchronously, so as to adjust the angle of the wind power blade body 5, and the wind power blade body 5 can be flipped for continuous operation after spraying on one side. By using the second rack 41 connected to the left end of the movable frame 9, when the movable frame 9 moves to the left side of the equipment base 1, the second rack 41 is meshed with the second gear 44 and drives the second gear 44 to rotate. Through the cooperation between the internal ratchet 47 and the pawl 45, the second gear 44 can drive the driving worm 43 to rotate in one direction, and the wind power blade body 5 can be automatically flipped after spraying on one side, improving the operation convenience, with high automation degree, simple operation and no need to set a power source separately for the flipping structure, reducing the cost and the failure rate of the equipment at the same time.

[0058] A coating film method for an equipment for processing the surface coating of a wind power blade includes the following steps:

[0059] Step 1: First, use the clamping structure to clamp and fix the wind power blade body 5. The left end of the wind power blade body 5 penetrates into the clamping seat 3. Further rotate the positioning plate 4 and fix it with the clamping seat 3 to form a tubular structure. Then, rotate a plurality of threaded lead screws 6 in sequence. The threaded lead screws 6 drive a plurality of clamping plates 7 to slide inside the clamping seat 3 and the positioning plate 4 respectively, so as to contact the left end of the wind power blade body 5 through the clamping plates 7 and complete the clamping and fixing.

[0060] Step 2: After the clamping and fixing of the wind power blade body 5 is completed, start the power motor 16 to provide power for the liquid supply structure. The power motor 16 drives the reciprocating lead screw 19 to rotate, and the rotation of the reciprocating lead screw 19 drives the piston 18 to reciprocate inside the sealing tube 17, and the coating material in the liquid storage tank 15 is conveyed to the first spray head assembly 11 through the cooperation of the inlet check valve 20, the outlet check valve 21 and the first conduit 12 and sprayed out. With the cooperation of the second conduit 14, liquid is supplied to the second spray head assembly 13 synchronously, so as to ensure that the upper end face and the side face of the wind power blade body 5 can be sprayed synchronously.

[0061] Step 3: While the driving motor 16 drives the reciprocating lead screw 19 to rotate, the reciprocating lead screw 19 is used to drive the driving pulley 24 to rotate. The driving pulley 24 drives the driven pulley 26, the transmission rod 25, and the first gear 28 to rotate synchronously through the transmission belt 27. The first gear 28 cooperates with the first rack 29, and can move when the first gear 28 rotates, and drives the movable frame 9 to move synchronously to change the positions of the first nozzle assembly 11 and the second nozzle assembly 13;

[0062] Step 4: After spraying one side of the wind power blade body 5 is completed, the movable frame 9 moves from the right side to the left side of the equipment base 1, and drives the second rack 41 to move to the left side synchronously, so that the second rack 41 meshes with the second gear 44. By the cooperation of the internal ratchet 47 and the pawl 45, the second gear 44 can be used to drive the transmission worm 43 to rotate unidirectionally, and the transmission worm 43 can drive the transmission worm wheel 42 and the clamping seat 3 to rotate synchronously, so as to complete the flipping of the wind power blade body 5, and further perform continuous spraying on the reverse side

[0063] The content not detailed in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An equipment for processing the surface coating of a wind turbine blade, including an equipment base (1), characterized in that: A support frame (2) is fixed to the upper left end of the equipment base (1), and a clamping seat (3) passes through the middle of the support frame (2), and a wind turbine blade body (5) is embedded on the right side of the clamping seat (3). Slide rails (8) are symmetrically installed at the front and rear ends of the upper end of the equipment base (1), a support rod (10) is installed on the upper end of the slide rail (8), and a movable frame (9) is connected to the upper end of the support rod (10); A liquid storage tank (15) is fixed to the upper right end of the movable frame (9), and a power motor (16) is fixed to the upper end of the liquid storage tank (15). A first spray head assembly (11) is fixed to the lower end of the middle of the movable frame (9), and second spray head assemblies (13) are symmetrically distributed on both the front and rear sides of the first spray head assembly (11); A sealing pipe (17) is arranged inside the liquid storage tank (15), a piston (18) is arranged inside the sealing pipe (17), and a reciprocating lead screw (19) passes through the inside of the sealing pipe (17). A connecting frame (22) is arranged at the bottom of the liquid storage tank (15), and a stirring rod (23) is installed on the upper end of the connecting frame (22); Drive rods (25) are symmetrically installed at the front and rear ends of the movable frame (9), a first gear (28) is fixed to the lower end of the drive rod (25), a first rack (29) is fixed to the upper end of the equipment base (1), and the first rack (29) is meshed with the first gear (28); A driving worm gear (42) is fixedly connected to the left end of the clamping seat (3), and a driving worm (43) is arranged at the rear side of the clamping seat (3). The lower end of the driving worm (43) is rotatably connected to the equipment base (1), and the driving worm (43) is meshed with the driving worm gear (42); A second gear (44) is rotatably connected to the upper end of the driving worm (43), and an internal ratchet wheel (47) is fixed inside the second gear (44). A pawl (45) is rotatably connected to the outer wall of the top end of the driving worm (43), and the pawl (45) is meshed with the internal ratchet wheel (47). A limiting spring (46) is fixedly connected between the end of the pawl (45) and the outer wall of the driving worm (43). A second rack (41) is fixed to the rear end of the left side of the movable frame (9), and the second rack (41) is meshed with the second gear (44).

2. The equipment for processing the surface coating of a wind power blade according to claim 1, wherein: The clamping seat (3) is rotatably connected to the support frame (2), and a positioning plate (4) is hinged to the upper end of the middle of the clamping seat (3), and the positioning plate (4) is designed in an arc structure. The positioning plate (4) and the clamping seat (3) are shaped to fit together to form a tubular structure. Clamping plates (7) are slidably connected inside both the clamping seat (3) and the positioning plate (4), and a threaded lead screw (6) is rotatably connected to the outer side end of the clamping plate (7). The inner wall of the clamping plate (7) is adapted to the outer wall of the wind turbine blade body (5). The clamping plates (7) and the threaded lead screws (6) are both arranged in three groups in a circular array, and the three threaded lead screws (6) are respectively threadedly connected to the clamping seat (3) and the positioning plate (4).

3. The equipment for processing the surface coating of a wind power blade according to claim 2, wherein: The sliding rail (8) is designed in a "T" shape, and the upper end of the sliding rail (8) is slidably connected to the support rod (10), and the support rods (10) are symmetrically distributed at the four corners of the movable frame (9). The front and rear ends of the movable frame (9) are respectively rotatably connected to the transmission rod (25), and a driven pulley (26) is fixed to the upper end of the transmission rod (25). The two first racks (29) are arranged in the same direction. The lower end of the reciprocating screw rod (19) penetrates through the liquid storage tank (15) and the movable frame (9), and a driving pulley (24) is fixedly connected to the bottom end of the reciprocating screw rod (19), and a transmission belt (27) is connected between the driving pulley (24) and the driven pulley (26).

4. The equipment for processing the surface coating of a wind power blade according to claim 3, wherein: The piston (18) is slidably connected to the sealing pipe (17), and both the piston (18) and the inner wall of the sealing pipe (17) are designed in a square structure, and the piston (18) is threadedly connected to the reciprocating screw rod (19). The lower end of the reciprocating screw rod (19) is fixedly connected to the connecting frame (22), and the stirring rods (23) are annularly arranged at the upper end of the connecting frame (22). The upper and lower ends of the sealing pipe (17) are respectively connected with an out-liquid one-way valve (21) and an in-liquid one-way valve (20), and the in-liquid one-way valve (20) and the out-liquid one-way valve (21) are symmetrically distributed at the front and rear ends of the sealing pipe (17). The two in-liquid one-way valves (20) are conductively connected, and the two in-liquid one-way valves (20) are conductively connected to the inside of the liquid storage tank (15). The two out-liquid one-way valves (21) are conductively connected, and the upper ends of the two out-liquid one-way valves (21) are conductively connected to the end of the first conduit (12).

5. The equipment for processing the surface coating of a wind turbine blade according to claim 4, wherein: The two ends of the first nozzle assembly (11) are slidably connected to a recovery box (30), and the lower end of the recovery box (30) is fixedly connected to the second nozzle assembly (13), and a second conduit (14) is conductively connected between the second nozzle assembly (13) and the first nozzle assembly (11).

6. The equipment for processing the surface coating of a wind turbine blade according to claim 5, characterized in that: Positioning blocks (33) are fixed to the front and rear upper ends of the first nozzle assembly (11), and a limiting rod (34) penetrates through the positioning blocks (33), and the upper end of the recovery box (30) is fixedly connected to the limiting rod (34). A return spring (35) penetrates through the middle of the limiting rod (34), and the two ends of the return spring (35) are respectively connected to the positioning block (33) and the recovery box (30). A collection pipe (31) is conductively connected to the lower end of the recovery box (30). A collection box (32) is fixed to the inner side of the support rod (10), and the collection box (32) is conductively connected to the lower end of the collection pipe (31).

7. The equipment for processing the surface coating of a wind power blade according to claim 6, characterized in that: Second limiting plates (39) and first limiting plates (38) are respectively arranged on the front and rear sides of the lower end of the wind power blade body (5), and limiting grooves (40) are opened at the upper ends of the first limiting plate (38) and the second limiting plate (39), and the shapes of the two limiting grooves (40) are adapted to the edge shape of the wind power blade body (5). A limiting shaft (36) is fixed to the lower end of the recovery box (30), and a limiting roller (37) is rotatably connected to the lower end of the limiting shaft (36). The lower end of the limiting roller (37) extends into the limiting groove (40), and the limiting roller (37) is slidably connected to the limiting groove (40).

8. The coating method of the equipment for processing the surface coating of a wind power blade according to claim 7, characterized in that: Including the following steps: Step 1: First, clamp and fix the wind turbine blade body (5). Pass the left end of the wind turbine blade body (5) through the inside of the clamping seat (3). Further rotate the positioning plate (4) and fix it with the clamping seat (3) to form a tubular structure. Then, sequentially rotate multiple sets of threaded lead screws (6). Use the threaded lead screws (6) to drive multiple sets of clamping plates (7) to slide inside the clamping seat (3) and the positioning plate (4) respectively. Thus, the clamping plates (7) contact the left end of the wind turbine blade body (5) to complete clamping and fixing; Step 2: When the clamping and fixing of the wind turbine blade body (5) are completed, start the power motor (16) to drive the reciprocating lead screw (19) to rotate. The rotation of the reciprocating lead screw (19) drives the piston (18) to reciprocate inside the sealed tube (17). And the paint inside the liquid storage tank (15) is transported to the first spray head assembly (11) for spraying by the cooperation among the inlet check valve (20), the outlet check valve (21), and the first conduit (12). And with the cooperation of the second conduit (14), liquid is supplied to the second spray head assembly (13) synchronously, so as to ensure that the upper surface and the side surface of the wind turbine blade body (5) can be sprayed synchronously; Step 3: While the power motor (16) drives the reciprocating lead screw (19) to rotate, use the reciprocating lead screw (19) to drive the driving pulley (24) to rotate. The driving pulley (24) drives the driven pulley (26), the transmission rod (25), and the first gear (28) to rotate synchronously through the transmission belt (27). The first gear (28) cooperates with the first rack (29), and can move when the first gear (28) rotates, and drives the movable frame (9) to move synchronously to change the positions of the first spray head assembly (11) and the second spray head assembly (13); Step 4: After one side of the wind turbine blade body (5) is sprayed, the movable frame (9) moves from the right side to the left side of the equipment base (1), and drives the second rack (41) to move to the left side synchronously, so that the second rack (41) meshes with the second gear (44). With the cooperation of the internal ratchet (47) and the pawl (45), the second gear (44) can be used to drive the transmission worm (43) to rotate unidirectionally, and the transmission worm (43) can drive the transmission worm gear (42) and the clamping seat (3) to rotate synchronously, so as to complete the flipping of the wind turbine blade body (5), and further carry out continuous spraying on the reverse side.

Images