A surface spraying device for a wind power hub

Abstract

The utility model relates to wind power hub technical field especially is a kind of surface spraying device for wind power hub, for the paint spraying of wind power hub outer surface, three flange ports are evenly provided on the wind power hub, multiple mounting holes are equipped on the end face of flange port, the surface spraying device for wind power hub includes positioning frame and rotating frame, the rotating frame is rotatably installed on positioning frame, wind power hub is installed on positioning frame, spraying device is installed on rotating frame, spraying device is directly opposite the outer surface of wind power hub, the positioning frame can abut on flange port, part face of positioning frame is directly opposite mounting hole, the utility model is arranged perpendicular portion by abutting on the end face of flange port on wind power hub, realizes the protection to the mounting hole on the end face of flange port, prevents paint from being sprayed into mounting hole, greatly improves product quality, simultaneously need not to use protective film to package flange port, greatly improves processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine hub technology, and in particular to a surface spraying device for wind turbine hubs. Background Technology

[0002] Wind turbine hub coating equipment is a crucial tool for ensuring the quality and appearance of wind turbine hubs. It typically employs an automated production line design, featuring high efficiency, environmental friendliness, energy saving, and ease of operation. Currently, the coating of wind turbine hubs requires a system encompassing pretreatment, spraying, drying, curing, and quality control to ensure coating quality and stability, achieving rust prevention, corrosion resistance, wear resistance, and aesthetic appeal on the hub surface. Furthermore, given the large size of wind turbine hubs, manual spraying necessitates scaffolding or ladders. Automated spraying significantly reduces manual labor, minimizing potential harm to personnel, lowering production costs, and enabling the coating of wind turbine hubs of various specifications and models. For example, Chinese patent document CN202110148661.9 discloses an automated spraying device for large wind turbines, including a paint spraying tank, a spraying mechanism, a fan mechanism, a supporting mechanism, and a recovery mechanism. The paint spraying tank is a large processing tank. Two sets of spraying mechanisms are symmetrically arranged on both sides of the paint spraying tank, with the working ends of both sets located inside the tank. The working end of one set is positioned above the working end of the other set. The fan mechanism is positioned above the paint spraying tank, with its working end corresponding to the interior of the tank. The supporting mechanism and recovery mechanism are both located inside the paint spraying tank. This patent effectively solves the problems of inconvenience for manual operation due to the large size of the wind turbine hub and the potential harm to workers from paint mist. However, before automated spraying, certain structures on the wind turbine hub, such as bolt holes and mounting surfaces, need to be protected to prevent paint blockage. This protection still requires manual operation, leading to operational difficulties and affecting processing efficiency.

[0003] Therefore, it is necessary for those skilled in the art to provide a surface spraying device for wind turbine hubs that protects certain structures on the wind turbine hub during spraying, prevents bolt holes and mounting surfaces from being blocked by paint, and improves processing efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a surface spraying device for wind turbine hubs, so as to solve the technical problem that the bolt holes and mounting surfaces of wind turbine hubs are easily blocked by paint when spraying them, which affects product quality and processing efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a surface spraying device for wind turbine hubs, used for spraying paint on the outer surface of wind turbine hubs. The wind turbine hubs are evenly provided with three flange ports, and the end faces of the flange ports are provided with multiple mounting holes. The surface spraying device for wind turbine hubs includes a positioning frame and a rotating frame. The rotating frame is rotatably mounted on the positioning frame. The wind turbine hubs are mounted on the positioning frame. The spraying device is mounted on the rotating frame and faces the outer surface of the wind turbine hubs. The positioning frame can abut against the flange ports, and part of the positioning frame faces the mounting holes.

[0006] Furthermore, the positioning frame includes a horizontal part and a vertical part. A positioning shaft is provided on the horizontal part, and the wind turbine hub is installed on the horizontal part. The wind turbine hub and the positioning shaft are connected in a fitting manner. A central connecting shaft is provided on the vertical part, and the rotating frame is rotatably installed on the central connecting shaft. The central connecting shaft and the flange port are arranged coaxially, and the mounting hole faces the side of the vertical part.

[0007] Furthermore, one end of the rotating frame is provided with a first mounting ring, and the other end of the rotating frame is provided with a second mounting ring. The central connecting shaft is provided with a mounting groove, and the central connecting shaft is provided with a drive motor. The drive shaft of the drive motor extends into the mounting groove. The first mounting ring is connected to the drive shaft of the drive motor and is rotatably disposed in the mounting groove. The rotating frame rotates around the axis of the central connecting shaft.

[0008] Furthermore, the second mounting ring is provided with an adjusting arm, the axis of which is perpendicular to the axis of the rotating frame. The second mounting ring is detachably connected to one end of the rotating frame, and the spraying device is located at the end of the adjusting arm away from the second mounting ring.

[0009] Furthermore, the spraying device includes multiple spray guns, with the nozzles of the spray guns facing the outer surface of the wind turbine hub, and a fixing block provided at the end of the spray gun, the spray gun being detachably connected to the fixing block.

[0010] Furthermore, the end of the adjusting arm is provided with multiple connecting parts, one connecting part is directly opposite one spray gun, the fixing block is detachably connected to the connecting part, the connecting part is provided with a feeding port, a feeding channel is formed inside the connecting part, the feeding port is connected to the feeding channel, and the feeding channel is connected to the feed pipe of the spray gun.

[0011] Furthermore, the vertical part is movably disposed on the horizontal part, the vertical part can abut against the end face of the flange port, and the outer contour of the vertical part is larger than the outer contour of the flange port.

[0012] Furthermore, the horizontal part is provided with a limiting plate, and the vertical part is detachably connected to the limiting plate. The vertical part is provided with multiple fixing holes, which penetrate the wall of the vertical part. One fixing hole is directly opposite to one mounting hole, and the fixing hole and the mounting hole can be arranged coaxially.

[0013] The beneficial effects of this invention are as follows: By abutting a vertical part on the end face of the flange port on the wind turbine hub, this invention protects the mounting holes located on the flange port end face, preventing paint from spraying into the mounting holes, thus greatly improving product quality. Simultaneously, it eliminates the need for a protective film to seal the flange port, significantly improving processing efficiency. Furthermore, by using multiple spray guns, this invention achieves limited-area spraying of the outer surface of the wind turbine hub, improving spraying quality and precision while ensuring the spraying range. Limiting the spraying range reduces resource waste, thereby lowering production costs. Attached Figure Description

[0014] Figure 1 This is a 3D diagram of a wind turbine hub.

[0015] Figure 2 This is a perspective view of the surface spraying device for wind turbine hubs according to this utility model.

[0016] Figure 3 This is an exploded view of the surface spraying device for wind turbine hubs according to this utility model.

[0017] Figure 4 This is a top view of the surface spraying device for wind turbine hubs according to this utility model.

[0018] Figure 5 yes Figure 4 Sectional view along the middle AA.

[0019] Figure 6 yes Figure 5 A magnified view of part A in the middle.

[0020] Figure 7 yes Figure 5 A magnified view of part B in the middle.

[0021] Figure 8 yes Figure 3 A magnified view of part C in the middle.

[0022] The components in the attached diagram are labeled as follows: 10, wind turbine hub; 11, flange port; 12, mounting hole; 20, positioning frame; 21, horizontal part; 22, vertical part; 221, fixing hole; 23, central connecting shaft; 24, drive motor; 25, mounting groove; 26, sliding groove; 27, sliding bracket; 28, limiting plate; 29, positioning shaft; 30, rotating frame; 31, first mounting ring; 32, second mounting ring; 33, adjusting arm; 331, connecting part; 332, feeding port; 333, feeding channel; 36, spraying device; 361, spray gun; 362, fixing block. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] Please see Figure 1 This utility model provides a surface spraying device for wind turbine hubs, used to spray paint on the outer surface of wind turbine hubs 10. The wind turbine hub 10 is provided with three flange ports 11 evenly, and multiple mounting holes 12 are provided on the end face of the flange ports 11. The outer surface of the wind turbine hub 10 is spherical, and the outer ring of the flange ports 11 is arc-shaped.

[0025] Further, please refer to Figure 2 , Figure 3 The surface coating device for the wind turbine hub includes a positioning frame 20 and a rotating frame 30. The rotating frame 30 is rotatably mounted on the positioning frame 20, and a coating device 36 is mounted on the rotating frame 30. The coating device 36 faces the outer surface of the wind turbine hub 10. The positioning frame 20 can abut against the flange port 11, and part of the positioning frame 20 faces the mounting hole 12. In use, the wind turbine hub 10 is installed on the positioning frame 20, and the coating device 36 faces the outer surface of the wind turbine hub 10 to achieve local coating. By rotating the rotating frame 30, the coating device 36 on the rotating frame 30 is driven to rotate synchronously, thereby achieving large-area paint coating on the outer surface of the wind turbine hub 10.

[0026] Furthermore, the positioning frame 20 includes a horizontal part 21 and a vertical part 22. The horizontal part 21 has a plate-like structure and a positioning shaft 29 is provided on the horizontal part 21. The wind turbine hub 10 is installed on the horizontal part 21, and the wind turbine hub 10 is connected to the positioning shaft 29 to achieve rapid positioning and installation.

[0027] The vertical part 22 is movably disposed on the horizontal part 21. The vertical part 22 can abut against the end face of the flange port 11. The outer contour of the vertical part 22 is larger than the outer contour of the flange port 11. The mounting hole 12 is directly opposite the side of the vertical part 22. Thus, when the vertical part 22 abuts against the end face of the flange port 11, it can completely cover the mounting hole 12 located on the end face of the flange port 11, thereby preventing paint from entering.

[0028] The horizontal part 21 is provided with a limiting plate 28, and the vertical part 22 is detachably connected to the limiting plate 28. In use, by pushing the vertical part 22, the vertical part 22 abuts against the end face of the flange port 11 on the wind turbine hub 10. At the same time, the vertical part 22 is detachably connected to the limiting plate 28 using fasteners such as bolts or screws, thereby ensuring the stability of processing.

[0029] The vertical part 22 is provided with a plurality of fixing holes 221, which penetrate the wall of the vertical part 22. One fixing hole 221 is directly opposite to one mounting hole 12. The fixing hole 221 and the mounting hole 12 can be arranged coaxially. In use, the vertical part 22 is abutted against the flange port 11, so that the fixing hole 221 is aligned with the mounting hole 12. Then, bolts or screws and other fasteners are connected to the fixing hole 221 and the mounting hole 12, so that the vertical part 22 fits the flange port 11 as a whole, further ensuring the stability of processing.

[0030] In use, after the vertical part 22 abuts against and is installed on a flange port 11, the spraying device 36 is started to achieve local spraying. By rotating the rotating frame 30, the spraying device 36 on the rotating frame 30 is driven to rotate synchronously, thereby achieving large-area paint spraying on the outer surface of the wind turbine hub 10. Since the flange port 11 on the wind turbine hub 10 protrudes from the outer contour of the wind turbine hub 10, after completing the spraying process on the peripheral outer wall of one flange port 11, the vertical part 22 is moved to separate the vertical part 22 from the flange port 11 and leave a large gap to facilitate the rotation of the wind turbine hub 10. The wind turbine hub 10 is driven to rotate by the suspension device and the rotating device (not shown in the figure) so that the other flange port 11 faces the vertical part 22. The above installation and spraying operations are repeated to achieve the spraying process on the peripheral outer wall of each flange port 11 of the wind turbine hub 10.

[0031] This utility model protects the mounting hole 12 located on the end face of the flange port 11 on the wind turbine hub 10 by setting a vertical part 22 abutting against it, thereby preventing paint from being sprayed into the mounting hole 12 and ensuring product quality.

[0032] Further, please refer to Figure 4 , Figure 5The vertical part 22 is provided with a central connecting shaft 23, and the rotating frame 30 is rotatably mounted on the central connecting shaft 23. The central connecting shaft 23 is coaxially arranged with the flange port 11. This ensures that the spraying device 36 located on the rotating frame 30 can rotate around the axis of the flange port 11 and perform spraying, ensuring the uniformity of the spraying.

[0033] Specifically, please refer to Figure 6 The rotating frame 30 has a first mounting ring 31 at one end and a second mounting ring 32 at the other end. A mounting groove 25 is provided on the central connecting shaft 23, and a drive motor 24 is mounted on the central connecting shaft 23. The drive shaft of the drive motor 24 extends into the mounting groove 25, and the first mounting ring 31 is fitted onto the drive shaft of the drive motor 24. Thus, the first mounting ring 31 is rotatably mounted within the mounting groove 25, and the rotating frame 30 rotates around the axis of the central connecting shaft 23.

[0034] The second mounting ring 32 is provided with an adjusting arm 33. The axis of the adjusting arm 33 is perpendicular to the axis of the rotating frame 30. The second mounting ring 32 is detachably connected to one end of the rotating frame 30 using fasteners such as bolts or screws, thereby achieving a larger area of ​​spraying on the outer surface of the wind turbine hub 10 while ensuring connection stability.

[0035] Please see Figure 7 , Figure 8 The spraying device 36 is located at the end of the adjusting arm 33 away from the second mounting ring 32. The spraying device 36 includes a plurality of spray guns 361. The nozzles of the spray guns 361 are facing the outer surface of the wind turbine hub 10. The spray guns 361 are common paint spray guns on the market. The end of the spray gun 361 is provided with a fixing block 362. The spray gun 361 is detachably connected to the fixing block 362 by fasteners such as bolts or screws.

[0036] The end of the adjusting arm 33 is provided with multiple connecting parts 331, one connecting part 331 is directly opposite one spray gun 361, and the fixing block 362 is detachably connected to the connecting part 331. The connecting part 331 is provided with a feeding port 332, and a feeding channel 333 is formed inside the connecting part 331. The feeding port 332 is connected to the feeding channel 333. At the same time, the feeding channel 333 is connected to the feed pipe of the spray gun 361. In use, paint is introduced into the spray gun 361 through the feeding port 332 to ensure the stability of the spray gun in use.

[0037] In this embodiment, a connecting shaft (not shown in the figure) is provided between multiple spray guns 361 to ensure the positional accuracy between the multiple spray guns 361, so that the spray guns 361 can only spray according to the set direction, limiting the spraying range and ensuring the accuracy of processing.

[0038] Compared to existing technologies that use manual or mechanical methods to perform large-scale spraying in a confined environment, this invention uses multiple spray guns 361 to achieve limited-area spraying of the outer surface of the wind turbine hub 10. This improves the quality and precision of the spraying while ensuring the spraying area is covered. By limiting the spraying area, resource waste is reduced, thereby lowering production costs.

[0039] Furthermore, the vertical part 22 is provided with a sliding groove 26, which is coaxially arranged with the central connecting shaft 23. A sliding bracket 27 is slidably provided in the sliding groove 26, and the rotating frame 30 is partially engaged with the sliding bracket 27. The sliding bracket 27 is located between the first mounting ring 31 and the second mounting ring 32. In use, the sliding bracket 27 is engaged with the middle part of the rotating frame 30 to ensure the stability of the rotation of the rotating frame 30.

[0040] The specific operation method of this utility model is as follows: Step 1: Use the suspension device to install the wind turbine hub 10 onto the horizontal part 21, move the vertical part 22 so that the vertical part 22 abuts against and is installed on a flange port 11, and then start the spraying device 36 to achieve local spraying.

[0041] Step 2: Start the drive motor 24 to rotate the rotating frame 30, which in turn drives the spraying device 36 on the rotating frame 30 to rotate synchronously, so as to achieve large-area paint spraying on the outer surface around a flange port 11 of the wind turbine hub 10.

[0042] Step 3: After completing the spraying process on the outer wall of one flange port 11, move the vertical part 22 to separate the vertical part 22 from the flange port 11 with a large gap. Use the suspension device and the rotating device to drive the wind turbine hub 10 to rotate so that the other flange port 11 faces the vertical part 22. Repeat the above steps one and two to complete the installation and spraying operation, and realize the spraying process on the outer wall of each flange port 11 of the wind turbine hub 10.

[0043] This invention protects the mounting hole 12 located on the end face of the flange port 11 on the wind turbine hub 10 by abutting a vertical part 22, preventing paint from being sprayed into the mounting hole 12, thus greatly improving product quality. Simultaneously, it eliminates the need for a protective film to seal the flange port 11, significantly improving processing efficiency. Furthermore, by using multiple spray guns 361, this invention achieves limited-range spraying of the outer surface of the wind turbine hub 10, improving both the quality and precision of the spraying while ensuring the spraying area is covered. Limiting the spraying area reduces resource waste, thereby lowering production costs.

[0044] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A surface spraying device for wind turbine hubs, used for spraying paint onto the outer surface of a wind turbine hub (10), wherein the wind turbine hub (10) is provided with three flange ports (11) evenly distributed, and the end face of the flange ports (11) is provided with a plurality of mounting holes (12), characterized in that, The surface spraying device for the wind turbine hub includes a positioning frame (20) and a rotating frame (30). The rotating frame (30) is rotatably mounted on the positioning frame (20). The wind turbine hub (10) is mounted on the positioning frame (20). A spraying device (36) is mounted on the rotating frame (30). The spraying device (36) faces the outer surface of the wind turbine hub (10). The positioning frame (20) can abut against the flange port (11). Part of the positioning frame (20) faces the mounting hole (12).

2. The surface spraying device for wind turbine hubs according to claim 1, characterized in that, The positioning frame (20) includes a horizontal part (21) and a vertical part (22). The horizontal part (21) is provided with a positioning shaft (29). The wind turbine hub (10) is installed on the horizontal part (21). The wind turbine hub (10) and the positioning shaft (29) are connected in a fit. The vertical part (22) is provided with a central connecting shaft (23). The rotating frame (30) is rotatably installed on the central connecting shaft (23). The central connecting shaft (23) and the flange port (11) are arranged coaxially. The mounting hole (12) is directly opposite the side of the vertical part (22).

3. The surface spraying device for wind turbine hubs according to claim 2, characterized in that, The rotating frame (30) has a first mounting ring (31) at one end and a second mounting ring (32) at the other end. The central connecting shaft (23) has a mounting groove (25) and a drive motor (24) on the central connecting shaft (23). The drive shaft of the drive motor (24) extends into the mounting groove (25). The first mounting ring (31) is connected to the drive shaft of the drive motor (24). The first mounting ring (31) is rotatably set in the mounting groove (25). The rotating frame (30) rotates around the axis of the central connecting shaft (23).

4. The surface spraying device for wind turbine hubs according to claim 3, characterized in that, The second mounting ring (32) is provided with an adjusting arm (33), the axis of the adjusting arm (33) is perpendicular to the axis of the rotating frame (30), the second mounting ring (32) is detachably connected to one end of the rotating frame (30), and the spraying device (36) is located at the end of the adjusting arm (33) away from the second mounting ring (32).

5. The surface spraying device for wind turbine hubs according to claim 4, characterized in that, The spraying device (36) includes multiple spray guns (361), the nozzles of the spray guns (361) are facing the outer surface of the wind turbine hub (10), and the ends of the spray guns (361) are provided with fixing blocks (362), and the spray guns (361) are detachably connected to the fixing blocks (362).

6. The surface spraying device for wind turbine hubs according to claim 5, characterized in that, The end of the adjusting arm (33) is provided with multiple connecting parts (331), one connecting part (331) is directly opposite a spray gun (361), and the fixing block (362) is detachably connected to the connecting part (331). The connecting part (331) is provided with a feeding port (332), and a feeding channel (333) is formed inside the connecting part (331). The feeding port (332) is connected to the feeding channel (333), and the feeding channel (333) is connected to the feed pipe of the spray gun (361).

7. The surface spraying device for wind turbine hubs according to claim 2, characterized in that, The vertical part (22) is movably disposed on the horizontal part (21), and the vertical part (22) can abut against the end face of the flange port (11). The outer contour of the vertical part (22) is larger than the outer contour of the flange port (11).

8. The surface spraying device for wind turbine hubs according to claim 7, characterized in that, The horizontal part (21) is provided with a limiting plate (28), and the vertical part (22) is detachably connected to the limiting plate (28). The vertical part (22) is provided with multiple fixing holes (221). The fixing holes (221) penetrate the wall of the vertical part (22). One fixing hole (221) is directly opposite to one mounting hole (12). One fixing hole (221) and one mounting hole (12) can be arranged coaxially.

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