A wind power generation blade self-fastening assembly structure

Abstract

The application relates to the technical field of wind power generation blades, in particular to a wind power generation blade self-fastening assembly structure which comprises a connecting piece, the surface of the connecting piece is provided with a plug-in ring, a rotating disc, the surface of the rotating disc is provided with a fixing frame, the surface of the fixing frame is provided with a plug-in groove, the surface of the rotating disc is provided with a connecting rod, the end of the connecting rod is provided with a screwing column, the surface of the connecting rod is provided with a triangular plate, the surface of the triangular plate is provided with a rotating plate, and a plug-in block is plugged in the plug-in groove; the beneficial effects are that the screw rod is plugged in the inside of the limiting hole and the plug-in ring, the rotating disc is stabilized, the plug-in block at the end of the blade is plugged in the plug-in groove, the blade is fixed by using the screw rod and the nut, the screwing column is pulled, the connecting rod is pulled out of the rotating disc, then the rotating plate is rotated, the elastic sheet is pressed, the limiting column is sleeved on the surface of the nut, and the nut is always stressed under the action of the elastic sheet, so that the nut is prevented from loosening.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade technology, specifically to a self-fastening assembly structure for wind turbine blades. Background Technology

[0002] Wind power generation refers to converting the kinetic energy of wind into electrical energy. Wind energy is a clean and pollution-free renewable energy source that has been used by people for a long time, mainly through windmills for pumping water, grinding grain, etc. People are interested in how to use wind to generate electricity.

[0003] In the existing technology, the blades used for wind power generation are transported to the site and then installed and fixed. The blades are generally long and require multiple sets of fixing components to secure them and prevent them from loosening.

[0004] However, since the blades are fixed by screws, the blades vibrate during rotation, causing the screws to loosen and affecting the fixation of the blades. Loose blades affect the balance of the wind turbine, thus affecting the power generation efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a self-fastening assembly structure for wind turbine blades to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-fastening assembly structure for wind turbine blades, comprising: a connector, the surface of which is provided with an insertion ring; a rotating disk, the surface of which is provided with a fixing frame, the surface of which is provided with an insertion groove, the surface of which is provided with a connecting rod, the end of which is provided with a screwing post, the surface of which is provided with a triangular plate, the surface of which is provided with a rotating plate; and an insertion block, which is inserted into the insertion groove.

[0007] Preferably, the surface of the plug ring has a hole, the surface of the rotating disk has a limit hole, the end of the plug block is connected to the blade, the surface of the plug block has a screw hole, there are multiple sets of screw holes, the surface of the fixing frame has a hole, a screw is inserted into the hole, a nut is screwed onto the surface of the screw, the diameter of the screw is the same as the diameter of the limit hole and the hole on the surface of the plug ring, and the screw can be inserted into the limit hole and the hole on the surface of the plug ring.

[0008] Preferably, the connecting rod is inserted into the surface of the rotating disk. The cross-section of the connecting rod consists of a circle and an extended semicircle. One end of the connecting rod located in the rotating disk is connected to a spring. Under the action of the spring, the connecting rod can be retracted into the rotating disk. A threaded post is screwed onto the surface of the connecting rod. The end of the threaded post is connected to a screwing post. Tightening the screwing post allows the threaded post to rotate and move on the surface of the connecting rod.

[0009] Preferably, the triangular plate is fixed to the surface of the connecting rod, and a telescopic rod is inserted into the surface of the triangular plate. The telescopic rod can move in the triangular plate. One end of the telescopic rod is provided with a rotating plate, and the other end of the telescopic rod is provided with a limiting post. The surface of the limiting post is provided with a slot.

[0010] Preferably, the surface of the triangular plate is provided with an extension post, the surface of the extension post is provided with a spring piece, the other end of the spring piece is connected to the surface of the rotating plate, the spring piece exerts a thrust on the rotating plate, and the rotating plate can rotate around the telescopic rod.

[0011] Preferably, the surface of the fixing frame is provided with a threaded plate, the surface of the threaded plate is threaded, the inner wall of the screwing column is threaded, and the screwing column can be screwed onto the surface of the threaded plate.

[0012] Preferably, the limiting post can be sleeved on the outside of the nut, and the nut and screw are inserted into the slot. The cross-section of the slot is a regular twelve-section, and the nut can be locked in the slot.

[0013] Preferably, the telescopic rod can rotate on the surface of the triangular plate, and a limit ring is provided on the surface of the telescopic rod so that the telescopic rod cannot move on the surface of the triangular plate.

[0014] Preferably, the triangular plate moves with the connecting rod, the limiting post moves with the triangular plate, and the depth of the groove is greater than the thickness of the nut.

[0015] Preferably, the position of the screw hole on the surface of the plug block corresponds to the position of the hole on the surface of the fixing bracket, and the screw can be inserted into the screw hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention proposes using a screw inserted into the limiting hole and the insertion ring to stabilize the rotating disk. The insertion block at the end of the blade is inserted into the insertion slot, and the blade is fixed using a screw and nut. Pulling the screwing pin causes the connecting rod to be pulled out of the rotating disk. Then, rotating the rotating plate causes the spring to be pressured. The limiting pin is sleeved on the surface of the nut, and under the action of the spring, the nut is constantly under force to prevent it from loosening. Then, under the pull of the spring at the end of the connecting rod, the limiting pin is held against the surface of the nut. Tightening the screwing pin after it is tightened screws onto the surface of the threaded plate, fixing the position of the screwing pin and the position of the triangular plate, preventing the limiting pin from detaching from the surface of the nut, keeping the limiting pin locked on the surface of the nut, and ensuring that the nut will not loosen. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the rotating disk of the present invention;

[0020] Figure 3 This is a side view of the three-dimensional structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the triangular plate of the present invention;

[0022] Figure 5 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0023] Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0024] In the diagram: 1. Connector ring; 2. Plug-in groove; 3. Fixing frame; 4. Rotating disk; 5. Screw hole; 6. Plug-in block; 7. Paddle blade; 8. Triangular plate; 9. Limiting post; 10. Telescopic rod; 11. Rotating plate; 12. Spring piece; 13. Extension post; 14. Screw; 15. Nut; 16. Threaded plate; 17. Connecting rod; 18. Slot; 19. Tightening post; 20. Screw post; 21. Limiting hole; 22. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1 to 6 The present invention provides a technical solution: a self-fastening assembly structure for wind turbine blades, comprising: a connector 1, a plug ring 2 on the surface of the connector 1, a hole on the surface of the plug ring 2, a limiting hole 22 on the surface of the rotating disk 5, a blade 8 connected to the end of a plug block 7, a screw hole 6 on the surface of the plug block 7, multiple sets of screw holes 6, a hole on the surface of a fixing frame 4, a screw 15 inserted into the hole, a nut 16 screwed onto the surface of the screw 15, the diameter of the screw 15 being the same as the diameter of the limiting hole 22 and the hole on the surface of the plug ring 2, and the screw 15 being able to be inserted into the limiting hole 22 and the hole on the surface of the plug ring 2;

[0027] A rotating disk 5 has a fixed frame 4 on its surface, and an insertion groove 3 on the surface of the fixed frame 4. A connecting rod 18 is provided on the surface of the rotating disk 5, and a screwing post 20 is provided at the end of the connecting rod 18. A triangular plate 9 is provided on the surface of the connecting rod 18, and a rotating plate 12 is provided on the surface of the triangular plate 9. The connecting rod 18 is inserted into the surface of the rotating disk 5. The cross-section of the connecting rod 18 is composed of a circle and an extended semicircle. A spring is connected to one end of the connecting rod 18 located in the rotating disk 5. Under the action of the spring, the connecting rod 18 can be retracted and rotated. In disc 5, a threaded post 21 is screwed onto the surface of the connecting rod 18. A screw-on post 20 is connected to the end of the threaded post 21. Tightening the screw-on post 20 allows the threaded post 21 to rotate and move on the surface of the connecting rod 18. A triangular plate 9 is fixed to the surface of the connecting rod 18. A telescopic rod 11 is inserted into the surface of the triangular plate 9. The telescopic rod 11 can move within the triangular plate 9. A rotating plate 12 is provided at one end of the telescopic rod 11, and a limiting post 10 is provided at the other end. A slot 19 is formed on the surface of the limiting post 10. An extension plate 10 is formed on the surface of the triangular plate 9. The extension column 14 has a spring piece 13 on its surface. The other end of the spring piece 13 is connected to the surface of the rotating plate 12. The spring piece 13 exerts a thrust on the rotating plate 12, and the rotating plate 12 can rotate around the telescopic rod 11. The fixing frame 4 has a threaded plate 17 on its surface. The threaded plate 17 has threads on its surface. The inner wall of the screwing column 20 has threads, and the screwing column 20 can be screwed onto the surface of the threaded plate 17. The limiting column 10 can be sleeved on the outside of the nut 16. The nut 16 and the screw 15 are inserted into the slot 19. The cross-section is a regular dodecagon. Nut 16 can be locked in slot 19. Telescopic rod 11 can rotate on the surface of triangle plate 9. Limiting ring is provided on the surface of telescopic rod 11. Telescopic rod 11 cannot move on the surface of triangle plate 9. Triangle plate 9 moves with connecting rod 18. Limiting post 10 moves with triangle plate 9. The depth of slot 19 is greater than the thickness of nut 16. Insertion block 7 is inserted into insertion slot 3. The position of screw hole 6 on the surface of insertion block 7 corresponds to the position of hole on the surface of fixing frame 4. Screw 15 can be inserted into screw hole 6.

[0028] The screw 15 is inserted into the limiting hole 22 and the insertion ring 2 to stabilize the rotating disk 5. The insertion block 7 at the end of the blade 8 is inserted into the insertion groove 3. The blade 8 is fixed with the screw 15 and the nut 16. The screw 15 and the nut 16 are pulled to pull the connecting rod 18 out of the rotating disk 5. Then the rotating plate 12 is rotated to put pressure on the spring piece 13. The limiting post 10 is sleeved on the surface of the nut 16. Under the action of the spring piece 13, the nut 16 is always under force to prevent the nut 16 from loosening. Then, under the pull of the spring at the end of the connecting rod 18, the limiting post 10 is held against the surface of the nut 16. The screw 20 is screwed. After the screw 20 is screwed, the screw 20 is screwed onto the surface of the threaded piece 17 to fix the position of the screw 20 and the position of the triangular plate 9 to prevent the limiting post 10 from detaching from the surface of the nut 16. The limiting post 10 is kept stuck on the surface of the nut 16 to ensure that the nut 16 will not loosen.

[0029] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A self-fastening assembly structure for wind turbine blades, characterized in that: The self-fastening assembly structure for wind turbine blades includes: Connector (1), the surface of connector (1) is provided with a plug ring (2); A rotating disk (5) is provided with a fixing frame (4) on its surface. The fixing frame (4) has a slot (3) on its surface. A connecting rod (18) is provided on the surface of the rotating disk (5). A screwing post (20) is provided at the end of the connecting rod (18). A triangular plate (9) is provided on the surface of the connecting rod (18). A rotating plate (12) is provided on the surface of the triangular plate (9). The plug-in block (7) is inserted into the plug-in slot (3); The surface of the plug ring (2) is provided with a hole, the surface of the rotating disk (5) is provided with a limiting hole (22), the end of the plug block (7) is connected to the blade (8), the surface of the plug block (7) is provided with a screw hole (6), the screw hole (6) has multiple sets, the surface of the fixing frame (4) is provided with a hole, a screw (15) is inserted into the hole, a nut (16) is screwed onto the surface of the screw (15), the diameter of the screw (15) is the same as the diameter of the limiting hole (22) and the hole on the surface of the plug ring (2), and the screw (15) can be inserted into the limiting hole (22) and the hole on the surface of the plug ring (2); The connecting rod (18) is inserted into the surface of the rotating disk (5). The cross-section of the connecting rod (18) is composed of a circle and an extended semicircle. One end of the connecting rod (18) located in the rotating disk (5) is connected to a spring. Under the action of the spring, the connecting rod (18) can be retracted into the rotating disk (5). A threaded post (21) is screwed onto the surface of the connecting rod (18). The end of the threaded post (21) is connected to a screwing post (20). Tightening the screwing post (20) can make the threaded post (21) rotate and move on the surface of the connecting rod (18). The triangular plate (9) is fixed on the surface of the connecting rod (18). A telescopic rod (11) is inserted into the surface of the triangular plate (9). A rotating plate (12) is provided at one end of the telescopic rod (11), and a limit post (10) is provided at the other end of the telescopic rod (11). A slot (19) is provided on the surface of the limit post (10). The surface of the triangular plate (9) is provided with an extension post (14), and the surface of the extension post (14) is provided with a spring piece (13). The other end of the spring piece (13) is connected to the surface of the rotating plate (12). The spring piece (13) has a thrust on the rotating plate (12), and the rotating plate (12) can rotate around the telescopic rod (11). The limiting post (10) can be sleeved on the outside of the nut (16), and the nut (16) and the screw (15) are inserted into the slot (19). The cross section of the slot (19) is a regular dodecagon, and the nut (16) can be locked in the slot (19). The telescopic rod (11) can rotate on the surface of the triangular plate (9), and a limit ring is provided on the surface of the telescopic rod (11), so that the telescopic rod (11) cannot move on the surface of the triangular plate (9); The triangular plate (9) moves with the connecting rod (18), the limiting post (10) moves with the triangular plate (9), and the depth of the slot (19) is greater than the thickness of the nut (16).

2. The self-fastening assembly structure for wind turbine blades according to claim 1, characterized in that: The surface of the fixing frame (4) is provided with a threaded plate (17), the surface of the threaded plate (17) is provided with threads, the inner wall of the screwing column (20) is provided with threads, and the screwing column (20) can be screwed onto the surface of the threaded plate (17).

3. The self-fastening assembly structure for wind turbine blades according to claim 2, characterized in that: The position of the screw hole (6) on the surface of the plug block (7) corresponds to the position of the hole on the surface of the fixing frame (4), and the screw (15) can be inserted into the screw hole (6).

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