Blade anti-corrosion treatment device for fan
By designing a protective cover and transmission components to drive the nozzle to move up, down and in a circular motion, the anti-corrosion treatment device for wind turbine blades solves the problem of uneven coating on blades with complex shapes, achieving uniform coating and environmental protection.
Patent Information
- Application Number
- CN202423241031.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing anti-corrosion equipment for wind turbine blades has difficulty ensuring the uniformity of coatings on complex shapes and curved surfaces during spraying, and its effect is particularly poor on small wind turbine blades.
A device comprising a protective cover, a transmission assembly, a drive motor, a retainer, and a nozzle was designed. The transmission assembly drives the nozzle to move up and down and in a circular motion along the outer periphery of the fan to ensure uniform spraying. The fan is suspended by a hook for spraying operations.
This method achieves a uniform anti-corrosion coating on the surface of wind turbine blades, improves spraying efficiency and quality, reduces the volatilization and diffusion of anti-corrosion agents, and protects the external environment.
Smart Images

Figure CN223915702U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of equipment spraying technology, and in particular relates to a device for anti-corrosion treatment of wind turbine blades. Background Technology
[0002] Corrosion protection treatment of wind turbine blades is to extend the service life of wind turbines, especially in humid and high-salt environments where blades are easily corroded. Corrosion protection equipment is mainly used to treat the surface of wind turbine blades to improve their corrosion resistance. Common corrosion protection methods include coating, spraying, and surface treatment.
[0003] While existing wind turbine blade anti-corrosion treatment equipment has made great progress in terms of spraying effect and automation when used to treat small wind turbine blades, it still has some shortcomings and limitations. Specifically, the limited adjustment range of the spraying structure often makes it difficult to ensure uniform coating at every angle when spraying due to the complex shape and many curved surfaces of the wind turbine blades. Utility Model Content
[0004] To address the problem described in the background art, where the complex shape and numerous curved surfaces of wind turbine blades make it difficult to ensure uniform coating at every angle during spraying, this utility model proposes the following technical solution:
[0005] A device for anti-corrosion treatment of wind turbine blades includes: a protective cover, a transmission assembly, a drive motor, a retainer, and multiple nozzles; the protective cover has a spraying chamber for spraying an anti-corrosion agent, and a hook is provided inside the protective cover; the transmission assembly is coaxially disposed with the protective cover in the spraying chamber, and the retainer is vertically mounted on the surface of the transmission assembly; the fixed end of the drive motor is fixedly connected to the protective cover, and the movable end of the drive motor is engaged with the transmission assembly; multiple nozzles are fixedly disposed at intervals on the outer periphery of the retainer, and each nozzle is connected to a paint can; when the drive motor is started, the transmission assembly drives each nozzle to rotate along the outer periphery of the hook to perform a spraying operation on the wind turbine.
[0006] The transmission assembly includes a rotating platform, a gear seat, and a rotating shaft. Multiple electric telescopic rods are fixedly arranged at intervals on the outer circumference of the rotating platform, and the movable end of each electric telescopic rod is fixedly connected to the retainer. The outer circumference of the gear seat meshes with the movable end of the drive motor. One end of the rotating shaft is fixedly connected to the rotating platform, and the other end of the rotating shaft is fixedly connected to the gear seat.
[0007] Furthermore, the protective cover includes: a cover body, a support platform, a base, and multiple support legs; the cover body is snapped together with the base to form the spraying cavity; the support platform is embedded in the cover body to divide the spraying cavity into layers; multiple support legs are fixedly provided on the outer circumference of the base, and each support leg is arranged along the outer circumference of the base.
[0008] Furthermore, the surface of the support platform is provided with a through hole and a guide hole; one end of the rotating shaft passes through the through hole and is fixedly connected to the gear seat, the movable end of the drive motor passes through the guide hole and meshes with the gear seat, and the guide hole is located on the outer ring of the through hole.
[0009] Furthermore, the outer circumferential surface of the support is recessed at intervals to form a plurality of notches that match the paint can, and each notch is located between adjacent electric telescopic rods.
[0010] Furthermore, each of the nozzles is fixedly disposed on the inner annular surface of the retainer, and each of the nozzles extends radially inward along the retainer.
[0011] Furthermore, one end of the cover is provided with a limiting groove, and the fixed end of the drive motor is fixedly disposed in the limiting groove.
[0012] Furthermore, the cover, the support platform, the rotating shaft, and the base are coaxially arranged.
[0013] Beneficial effects: This utility model suspends the fan by hooks. After the drive motor is started, the transmission component drives each nozzle to move up and down and in a circular motion along the outer periphery of the fan, so as to ensure that the fan forms a uniform protective layer after the spraying operation is completed. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a blade anti-corrosion treatment device for a wind turbine according to an embodiment of the present utility model;
[0015] Figure 2 This is an exploded structural diagram of the transmission assembly and cage according to an embodiment of the present utility model;
[0016] Figure 3 This is an exploded structural diagram of a blade anti-corrosion treatment device for a wind turbine according to an embodiment of the present invention. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention.
[0018] It should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.
[0019] Figure 1 This is a schematic diagram of a wind turbine blade anti-corrosion treatment device according to an embodiment of the present invention. Figure 2 This is an exploded structural diagram of the transmission assembly and cage according to an embodiment of the present invention.
[0020] Reference Figure 1 A blade corrosion protection device for a wind turbine according to an embodiment of the present invention includes: a protective cover 1, a transmission assembly 2, a drive motor 3, a retainer 4, and multiple nozzles 5. The protective cover 1 has a spraying chamber for spraying a corrosion inhibitor, and the top of the protective cover 1 is also provided with a hook 7 for suspending the wind turbine. The spraying chamber provides a relatively enclosed space for the blade corrosion protection operation, which helps to reduce the volatilization and diffusion of the corrosion inhibitor during the spraying process, improving spraying efficiency and quality. (Refer to...) Figure 2 The transmission assembly 2 and the protective cover 1 are coaxially mounted inside the spraying chamber, and the retainer 4 is vertically and flexibly mounted on the surface of the transmission assembly 2. Multiple nozzles 5 are fixedly arranged at intervals on the outer periphery of the retainer 4, each nozzle 5 being connected to a paint tank 6. The fixed end of the drive motor 3 is fixedly connected to the protective cover 1, while the movable end of the drive motor 3 meshes with the transmission assembly 2. When the drive motor 3 starts operating, it drives the transmission assembly 2 to rotate, thereby performing spraying operations on the fan.
[0021] Continue to refer to Figure 2 Specifically, the transmission assembly 2 includes a rotating table 21, a gear seat 22, and a rotating shaft 23. Multiple electrically operated telescopic rods 8 are fixedly mounted at intervals on the outer circumference of the rotating table 21, and the movable end of each electric telescopic rod 8 is fixedly connected to a retainer 4. The height of the retainer 4 can be adjusted by extending and retracting the electric telescopic rods 8, thus meeting the requirements for precise spraying of different parts of the fan. The outer circumference of the gear seat 22 is connected to the movable end of the drive motor 3, and the middle part of the gear seat 22 is fixedly connected to the rotating shaft 23. The rotating shaft 23 is coaxial with the rotating table 21, connecting the gear seat 22 and the rotating table 21, thereby driving the entire rotating table 21 to perform circular motion.
[0022] Figure 3 This is an exploded structural diagram of a blade anti-corrosion treatment device for a wind turbine according to an embodiment of the present invention.
[0023] Reference Figure 3 Specifically, the protective cover 1 comprises a cover body 11, a support platform 12, a base 13, and multiple support legs 14. The cover body 11 is snap-fitted to the base 13, forming a spraying chamber that accommodates the transmission assembly 2 and the fan. Within the spraying chamber, the corrosion inhibitor is prevented from diffusing to the outside during the spraying process, thus preventing pollution of the external environment. The support platform 12 is embedded within the cover body 11, dividing the spraying chamber into upper and lower layers. The fan performs the spraying operation in the upper space, while the lower layer is blocked by the rotating platform 21 to prevent corrosion inhibitor from adhering to the surface of the gear seat 22. Multiple support legs 14 are securely fixed to the outer circumference of the base 13. These support legs 14 are distributed in a circular array along the outer circumference of the base 13 to ensure stable operation of the entire device during operation.
[0024] Furthermore, the cover 11, the support 12, the rotating shaft 23, and the base 13 are coaxially arranged. The surface of the support 12 is provided with a through hole 121 and a guide hole 122. One end of the rotating shaft 23 passes through the through hole 121 and is fixedly connected to the gear seat 22, while the other end of the rotating shaft 23 is fixedly connected to the rotating platform 21. The movable end of the drive motor 3 passes through the guide hole 122 and meshes with the gear seat 22. The guide hole 122 is located on the outer ring of the through hole 121, and the fixed end of the drive motor 3 maintains stability during operation through the limiting effect of the guide hole 122.
[0025] Multiple notches 123 are recessed at intervals on the outer circumferential surface of the support 12, each notch 123 being fixedly fitted with a paint tank 6, and each notch 123 being located between adjacent electric telescopic rods 8. Each nozzle 5 is firmly fixed to the inner ring surface of the retainer 4 and extends radially inward along the retainer 4. Each nozzle 5 is connected to an adjacent paint tank 6 via a pipe. During the rotation of the rotary table 21, each nozzle 5 and its corresponding paint tank 6 remain relatively stationary, thereby preventing the pipes from becoming tangled during rotation and thus avoiding any impact on the spraying operation. Furthermore, to ensure the stability of the rotary table 21 during rotation, in other embodiments, the inner wall of the through hole 121 is fixedly connected to the outer ring of the bearing, and the inner ring of the bearing is fixedly connected to the rotating shaft 23.
[0026] Preferably, to ensure the stability of the drive motor 3 during the spraying operation, in this embodiment, a limiting groove 111 matching the drive motor 3 is provided on the outer peripheral surface of the cover 11. The fixed end of the drive motor 3 is fixedly connected to the inner wall of the limiting groove 111, and the movable end of the drive motor 3 passes through the guide hole 122 and meshes with the gear seat 22. During the spraying operation, the drive motor 3 is kept vertical by the combined action of the limiting groove 111 and the guide hole 122, thereby maintaining normal meshing transmission. During the operation of the drive motor 3, the gear seat 22 drives the rotating table 21 to rotate, thereby driving each nozzle 5 on the retainer 4 to rotate. After adjusting the height of the retainer 4 by the electric telescopic rod 8, the nozzles 5 are opened to spray the fan suspended on the hook 7, thereby ensuring that the surface of the fan can be evenly coated with the anti-corrosion agent.
[0027] In summary, this utility model uses a hook to suspend the fan. After the drive motor starts, the transmission component drives each nozzle to move up and down and in a circular motion along the outer periphery of the fan, so as to ensure that the fan forms a uniform protective layer after the spraying operation is completed.
[0028] The above description describes specific embodiments of the utility model. Other embodiments are within the scope of the appended claims.
[0029] The terms “exemplary,” “example,” etc., used throughout this specification mean “serving as an example, instance, or illustration” and do not imply “preferred” or “advantageous” than other embodiments. Detailed descriptions are included for the purpose of providing an understanding of the described techniques. However, these techniques can be practiced without these detailed descriptions. In some instances, well-known structures and apparatuses are shown in block diagram form to avoid obscuring the concepts of the described embodiments.
[0030] The optional embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present utility model are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present utility model, various simple modifications can be made to the technical solutions of the embodiments of the present utility model, and these simple modifications all fall within the protection scope of the embodiments of the present utility model.
[0031] The foregoing description of this specification is provided to enable any person skilled in the art to implement or use the content of this specification. Various modifications to the content of this specification will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of protection of this specification. Therefore, this specification is not limited to the examples and designs described herein, but is consistent with the widest scope of the principles and novel features disclosed herein.
Claims
1. A device for corrosion protection of wind turbine blades, characterized in that, The utility model provides a kind of anti-corrosion spraying device, including: Protective cover (1), transmission assembly (2), drive motor (3), retainer (4) and multiple nozzles (5);The protective cover (1) is equipped with for spraying anticorrosive agent spraying cavity inside, and the protective cover (1) is equipped with hook (7) inside;The transmission assembly (2) is coaxial with the protective cover (1) and is located in the spraying cavity, the retainer (4) is liftably arranged on the surface of the transmission assembly (2);The fixed end of the drive motor (3) is fixedly connected with the protective cover (1), and the movable end of the drive motor (3) is engaged with the transmission assembly (2);The outer periphery of the retainer (4) is fixedly provided with multiple nozzles (5), and each nozzle (5) is respectively communicated with paint tank (6);When the drive motor (3) is started, the transmission assembly (2) drives each nozzle (5) to rotate along the outer periphery of the hook (7), to carry out spraying operation to fan.
2. A blade corrosion prevention device for a wind turbine according to claim 1, wherein The transmission assembly (2) includes: rotating table (21), gear seat (22) and rotating shaft (23);The outer periphery of the rotating table (21) is fixedly provided with multiple electric telescopic rods (8), and the movable end of each electric telescopic rod (8) is fixedly connected with the retainer (4);The outer periphery of the gear seat (22) is engaged with the movable end of the drive motor (3), one end of the rotating shaft (23) is fixedly connected with the rotating table (21), and the other end of the rotating shaft (23) is fixedly connected with the gear seat (22).
3. A blade corrosion prevention device for a wind turbine according to claim 2, wherein The protective cover (1) includes: cover body (11), bearing platform (12), base (13) and multiple support legs (14);The cover body (11) is connected with the base (13) by snap, to form the spraying cavity;The bearing platform (12) is embedded in the cover body (11), to stratify the spraying cavity;The outer periphery of the base (13) is fixedly provided with multiple support legs (14), and each support leg (14) is respectively arranged along the outer periphery of the base (13).
4. A blade corrosion prevention device for a wind turbine according to claim 3, wherein The surface of the bearing platform (12) is provided with through hole (121) and guide hole (122);One end of the rotating shaft (23) passes through the through hole (121) and is fixedly connected with the gear seat (22), and the movable end of the drive motor (3) passes through the guide hole (122) and is engaged with the gear seat (22), and the guide hole (122) is located on the outer ring of the through hole (121).
5. A device for corrosion protection of the blades of a wind turbine according to claim 4, characterized in that The outer periphery of the bearing platform (12) is recessed to form multiple notches (123) matched with the paint tank (6), and each notch (123) is located between adjacent electric telescopic rods (8).
6. A blade corrosion prevention device for a wind turbine according to claim 4, wherein Each nozzle (5) is fixedly arranged on the inner ring surface of the retainer (4), and each nozzle (5) extends inward along the radial direction of the retainer (4).
7. A device for corrosion protection of the blades of a wind turbine according to claim 4, characterized in that One end of the cover body (11) is provided with a limiting groove (111), and the fixed end of the drive motor (3) is fixedly arranged in the limiting groove (111).
8. A device for corrosion protection of the blades of a wind turbine according to claim 4, characterized in that The cover body (11), the bearing platform (12), the rotating shaft (23) and the base (13) are coaxially arranged.