Bolt reinforcing device for fan blade
By adopting clamping and coating protection in the blade bolt reinforcement device of wind turbine generator set, the problems of inconsistent lengths of double-head bolts and oxidative rust are solved, and more firm and durable fixation and protection are achieved.
Patent Information
- Application Number
- CN202421020299.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the wind turbine blade fixing device, double-head bolts are difficult to maintain the same length when tightening, which can easily lead to loosening, oxidation and rust, and shorten service life.
Design a fan blade bolt reinforcement device, which is fixed by means of clamping of the card plate, the slot block, the bolt main body and the hexagon nut, and a heat insulation, anti-corrosion, anti-wear and anti-rust coating is installed on the bolt main body, and the use of Protective cover and hexagon screws are wrapped and secured.
A firmer fixation is achieved, extends service life, and prevents oxidation and wear through coating protection, improving the weather resistance and corrosion resistance of the bolts.
Smart Images

Figure CN222229133U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stud bolt fixing, in particular to a fan blade bolt reinforcement device. Background Art
[0002] The blades of wind turbines are fixed by stud bolts, one end of which is installed on the fiberglass sleeve at the root of the blade, and the other end is locked and connected to the motor. Generally, stud bolts are equipped with nuts, which are embedded parts and are fixed in position. When tightening the stud bolts used in existing blades, it is difficult to keep the extended length of each group of bolts consistent. When the extended lengths are inconsistent, the degree of force on the bolts is greatly different, which can easily cause the bolts to break and is inconvenient to use.
[0003] After searching, Chinese patent publication (announcement) No. CN 217130048 U discloses a stud bolt fixing device for wind turbine blades, which is installed on the top of the lower connecting block through a connecting pipe. The handle is turned to make the limit block rotate inside the limit groove, and the threaded rod is turned away from or into the threaded groove, and the compression spring is contracted or extended, that is, the distance between the lower connecting block and the upper connecting block is adjusted. The adjustment is performed before the threaded hole is aligned with the mounting hole of the blade, which is convenient for controlling the elongation of the bolt body and protecting the blade. However, the current device has too single installation method when fixing, and may become loose and unstable after installation. At the same time, most of the current bolts are exposed to the air. Long-term exposure may cause the bolts to oxidize and rust, resulting in a shortened service life. Therefore, it is necessary to design a wind turbine blade bolt reinforcement device. Utility Model Content
[0004] The main purpose of the utility model is to provide a fan blade bolt reinforcement device, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A fan blade bolt reinforcement device comprises a base plate and a main blade, wherein a slot block is fixedly connected to one side of the upper surface of the base plate, and a block plate is provided on one side of the upper surface of the slot block; the block plate is snap-connected with the slot block, and a mounting platform is fixedly connected to one side of the upper surface of the block plate, and a bolt body is provided on one side of the upper surface of the mounting platform, and a hexagonal nut is threadedly connected to one side of the outer surface of the bolt body.
[0007] In order to achieve the purpose of protection, as a fan blade bolt reinforcement device of the utility model, a fixing platform is provided on one side of the upper surface of the mounting platform, a protective cover is fixedly connected to one side of the upper surface of the fixing platform, and a first hexagon socket screw is provided on one side of the upper surface of the fixing platform.
[0008] In order to achieve the purpose of fixation, as a fan blade bolt reinforcement device of the utility model, a second hexagon socket screw is provided on one side of the upper surface of the base plate, and the main blade is fixedly connected to the mounting platform.
[0009] In order to achieve the purpose of heat insulation, as a fan blade bolt reinforcement device of the utility model, a heat insulation coating is provided on one side of the outer surface of the bolt body.
[0010] In order to achieve the purpose of anti-corrosion, as a fan blade bolt reinforcement device of the utility model, an anti-corrosion coating is provided on one side of the outer surface of the thermal insulation coating.
[0011] In order to achieve the purpose of anti-wear, as a fan blade bolt reinforcement device of the utility model, an anti-wear coating is provided on one side of the outer surface of the anti-corrosion coating.
[0012] In order to achieve the purpose of rust prevention, as a fan blade bolt reinforcement device of the utility model, an anti-rust coating is provided on one side of the outer surface of the anti-wear coating.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. In the utility model, through the arrangement of the block plate, the slot block, the bolt body and the hexagonal nut, when the reinforcement device needs to be installed, the block plate can be rotated to make the block plate and the slot block in a clamping state, first align the hexagonal nut with the bolt body and rotate it a few times, and then use a tool to rotate the hexagonal nut, so that the reinforcement device can be completely fixed. By fixing the reinforcement device in a clamping manner, it can be more firmly used during use, which greatly increases the service life.
[0015] 2. In the utility model, through the arrangement of the bolt body, the fixing platform, the mounting platform, the protective cover and the second hexagon socket screw, after the bolt body is installed and fixed, the fixing platform can be placed on the upper surface of the mounting platform, and the arrangement of the protective cover can wrap the bolt body, and then the second hexagon socket screw can be tightened with a tool to fix the fixing platform and the mounting platform, so that the bolt body can be protected by the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front view structural schematic diagram of the utility model;
[0017] Figure 2 This is a schematic diagram of the protective cover structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the card slot block structure of the utility model;
[0019] Figure 4 This is a schematic diagram of the fixed platform structure of the utility model;
[0020] Figure 5 This is a schematic diagram of the bolt main body structure of the utility model.
[0021] In the figure: 1. bottom plate; 2. main blade; 3. slot block; 4. block plate; 5. mounting platform; 6. bolt body; 7. hexagonal nut; 8. fixing platform; 9. protective cover; 10. first hexagon socket screw; 11. second hexagon socket screw; 12. thermal insulation coating; 13. anti-corrosion coating; 14. anti-wear coating; 15. anti-rust coating. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] like Figure 1-5 As shown, a fan blade bolt reinforcement device comprises a base plate 1 and a main blade 2, a slot block 3 is fixedly connected to one side of the upper surface of the base plate 1, and a block plate 4 is provided on one side of the upper surface of the slot block 3;
[0024] In this embodiment, the block plate 4 is clamped with the slot block 3, and a mounting platform 5 is fixedly connected to one side of the upper surface of the block plate 4. A bolt body 6 is provided on one side of the upper surface of the mounting platform 5, and a hexagonal nut 7 is threadedly connected to one side of the outer surface of the bolt body 6.
[0025] During specific use, when the reinforcement device needs to be installed, the block plate 4 is rotated to make the block plate 4 and the slot block 3 in a clamping state. First, align the hexagonal nut 7 with the bolt body 6 and rotate it a few times, and then use a tool to rotate the hexagonal nut 7. The reinforcement device can be completely fixed. The reinforcement device is fixed by clamping. During use, it can be made more firm and its service life is greatly increased.
[0026] In this embodiment, a fixing platform 8 is provided on one side of the upper surface of the mounting platform 5 , a protective cover 9 is fixedly connected to one side of the upper surface of the fixing platform 8 , and a first hexagon socket screw 10 is provided on one side of the upper surface of the fixing platform 8 .
[0027] During specific use, after the bolt body 6 is installed and fixed, the fixing platform 8 can be placed on the upper surface of the mounting platform 5. The protective cover 9 can be set to wrap the bolt body 6, and then the first hexagon socket screw 10 can be tightened with a tool to fix the fixing platform 8 and the mounting platform 5, so that the protective cover 9 can be used to protect the bolt body 6.
[0028] In this embodiment, a second hexagon socket screw 11 is provided on one side of the upper surface of the base plate 1 , and the main blade 2 is fixedly connected to the mounting platform 5 .
[0029] In specific use, when installing the device, the second hexagon socket screw 11 can be tightened with a tool to achieve the purpose of fixing.
[0030] In this embodiment, a heat insulation coating 12 is provided on one side of the outer surface of the bolt body 6 .
[0031] During specific use, the heat-insulating coating 12 is provided to reduce heat conduction of the bolt body 6 in a high-temperature environment, lower the temperature of the bolt body 6 , and protect the bolt body 6 and surrounding structures.
[0032] In this embodiment, an anti-corrosion coating 13 is provided on one side of the outer surface of the thermal insulation coating 12 .
[0033] During specific use, the anti-corrosion coating 13 is provided to increase the corrosion resistance of the bolt body 6, prevent the bolt body 6 from being corroded in a humid and corrosive environment, and extend the service life.
[0034] In this embodiment, an anti-wear coating 14 is provided on one side of the outer surface of the anti-corrosion coating 13 .
[0035] During specific use, the anti-wear coating 14 is provided to improve the wear resistance of the bolt body 6 , reduce the wear of the bolt body 6 under conditions of friction, vibration, etc., and extend the service life.
[0036] In this embodiment, an anti-rust coating 15 is provided on one side of the outer surface of the anti-wear coating 14 .
[0037] During specific use, the anti-rust coating 15 is provided to prevent the surface of the bolt body 6 from rusting, thereby increasing the weather resistance of the bolt body 6 .
[0038] Working principle: During use, when the reinforcement device needs to be installed, the block plate 4 is rotated to make the block plate 4 and the slot block 3 in a clamping state. First, align the hexagonal nut 7 with the bolt body 6 and rotate it a few times, and then use a tool to rotate the hexagonal nut 7 to completely fix the reinforcement device. The reinforcement device is fixed by clamping. During use, it can be made more firm and the service life is greatly increased. After the bolt body 6 is installed and fixed, the fixing platform 8 can be placed on the upper surface of the mounting platform 5. The protective cover 9 can be set to wrap the bolt body 6, and then the first hexagon socket screw 10 is tightened with a tool to fix the fixing platform 8 to the mounting platform 5, so that the protective cover 9 can be used. To protect the bolt body 6, when installing the device, the second hexagon socket screw 11 can be tightened with a tool to achieve the purpose of fixing. The thermal insulation coating 12 is provided to reduce the heat conduction of the bolt body 6 in a high temperature environment, reduce the temperature of the bolt body 6, and protect the bolt body 6 and the surrounding structure. The anti-corrosion coating 13 is provided to increase the corrosion resistance of the bolt body 6, prevent the bolt body 6 from corrosion in a humid and corrosive environment, and extend the service life. The anti-wear coating 14 is provided to improve the wear resistance of the bolt body 6, reduce the wear of the bolt body 6 under friction, vibration, etc., and extend the service life. The anti-rust coating 15 is provided to prevent rust on the surface of the bolt body 6 and increase the weather resistance of the bolt body 6.
[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A fan blade bolt reinforcement device, comprising a base plate (1) and a main blade (2), characterized in that: A card slot block (3) is fixedly connected to one side of the upper surface of the bottom plate (1), and a card block plate (4) is provided on one side of the upper surface of the card slot block (3); The block plate (4) is clamped with the slot block (3); one side of the upper surface of the block plate (4) is fixedly connected to a mounting platform (5); one side of the upper surface of the mounting platform (5) is provided with a bolt body (6); one side of the outer surface of the bolt body (6) is threadedly connected to a hexagonal nut (7).
2. A fan blade bolt reinforcement device according to claim 1, characterized in that: A fixing platform (8) is provided on one side of the upper surface of the mounting platform (5), a protective cover (9) is fixedly connected to one side of the upper surface of the fixing platform (8), and a first hexagon socket screw (10) is provided on one side of the upper surface of the fixing platform (8).
3. A fan blade bolt reinforcement device according to claim 1, characterized in that: A second hexagon socket screw (11) is provided on one side of the upper surface of the base plate (1), and the main blade (2) is fixedly connected to the mounting platform (5).
4. A fan blade bolt reinforcement device according to claim 1, characterized in that: A heat insulation coating (12) is provided on one side of the outer surface of the bolt body (6).
5. A fan blade bolt reinforcement device according to claim 4, characterized in that: An anti-corrosion coating (13) is provided on one side of the outer surface of the thermal insulation coating (12).
6. A fan blade bolt reinforcement device according to claim 5, characterized in that: An anti-wear coating (14) is provided on one side of the outer surface of the anti-corrosion coating (13).
7. A fan blade bolt reinforcement device according to claim 6, characterized in that: An anti-rust coating (15) is provided on one side of the outer surface of the anti-wear coating (14).
