Wind power blade assembly capable of enhancing wind resistance

Abstract

The wind power blade assembly capable of enhancing the wind resistance performance comprises a blade body, a supporting frame is fixedly installed in the blade body, telescopic through grooves are symmetrically formed in the upper face and the lower face of the blade body, and automatic rolling shafts located on the two sides of the telescopic through grooves are arranged on the inner wall of the blade body. A bidirectional lead screw is rotationally connected to the middle of the supporting frame, a driving motor is fixedly installed on the side face of the supporting frame on one side, the output end of the driving motor is in transmission connection with one end of the bidirectional lead screw, and the bidirectional lead screw is connected with symmetrically-arranged displacement blocks in a penetrating and threaded mode. In the strong wind state, the long rod is jacked up to be stored in the blade body, the flat tarpaulin is automatically rolled and attached to the outer surface of the blade body, the outer surface of the blade body is kept in a smooth state, the windward side is reduced, the stress of the blade is greatly reduced, and therefore the risks of blade damage and overall overturning of the wind power device are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a wind power blade assembly capable of enhancing wind resistance performance. Background Technique

[0002] Energy resources are very rich worldwide, and almost all regions and countries have considerable wind energy reserves. As an important part of renewable energy, wind energy has attracted extensive attention from researchers and has also received strong support from governments of various countries.

[0003] With the progress of blade materials and manufacturing technologies, the power of wind power generation devices is getting larger and larger, and the length of large wind power blades has been able to reach nearly 100 meters. The application of large wind power blades has improved the efficiency of wind energy capture, but their windward resistance is very considerable, and in the face of severe strong winds, the phenomenon of blade damage will occur; and large wind power blades are also not conducive to transportation.

[0004] Therefore, we propose a wind power blade assembly capable of enhancing wind resistance performance. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wind power blade assembly capable of enhancing wind resistance performance to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A wind power blade assembly capable of enhancing wind resistance performance, including a blade main body, a support frame is fixedly installed inside the blade main body, telescopic through grooves are symmetrically opened on the upper and lower sides of the blade main body, automatic winding shafts are arranged on the inner wall of the blade main body on both sides of the telescopic through grooves, a bidirectional lead screw is rotatably connected to the middle of the support frame, a driving motor is fixedly installed on the side of one support frame, the output end of the driving motor is in transmission connection with one end of the bidirectional lead screw, the bidirectional lead screw is threadedly connected through symmetrically arranged displacement blocks, the top and bottom of the displacement block are rotatably connected with support rods, the other end of the support rod is rotatably connected with a jacking long rod, the jacking long rod is slidably connected to the inside of the telescopic through groove, a tarpaulin is wound around the automatic winding shaft, and the top of the jacking long rod is in tight contact with the middle of the tarpaulin.

[0007] Optionally, both ends of the tarpaulin are fixedly installed on the automatic winding shafts on both sides of the telescopic through groove, the tarpaulin penetrates through the blade main body on both sides of the telescopic through groove and covers the top of the jacking long rod, and the width of the tarpaulin is the same as the length of the jacking long rod.

[0008] Optionally, a guiding slide bar is fixedly installed on the support frame on one side of the bidirectional lead screw, a guiding slide sleeve is integrally arranged on one side of the displacement block, and the guiding slide sleeve is slidably connected through the guiding slide bar.

[0009] Optionally, a first bevel gear is fixedly installed at the output end of the drive motor, and a second bevel gear located outside the support frame is fixedly installed at one end of the bidirectional lead screw. The second bevel gear meshes with the first bevel gear.

[0010] Optionally, two connecting seats are integrally provided on one side of the jacking long rod facing the bidirectional lead screw. The two connecting seats are symmetrically arranged at both ends of the same side of the jacking long rod.

[0011] Optionally, the length of the telescopic through groove is the same as the length of the jacking long rod, and the width of the telescopic through groove is the same as the width of the jacking long rod.

[0012] Optionally, one end of the support rod is rotatably connected to the jacking long rod through a connecting seat, and the length of the support rod is less than half of the length of the jacking long rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. For this wind power blade assembly capable of enhancing wind resistance performance, by setting up a tarpaulin and a jacking long rod, in the state of gentle wind, the drive motor drives the bidirectional lead screw to rotate through the first bevel gear and the second bevel gear. Then, the two displacement blocks move away from each other. The support rod pushes the jacking long rod to extend out of the telescopic chute, jacking up the tarpaulin, which plays a role in increasing the windward area, thereby increasing the utilization rate of the wind field. In the state of strong wind, the drive motor rotates in reverse, so that the jacking long rod is retracted into the inside of the blade body through the telescopic chute. Under the winding action of the automatic winding shaft, the flat tarpaulin is automatically wound and fits with the outer surface of the blade body, making the outer surface of the blade body remain smooth, reducing the windward area, greatly reducing the force on the blade, and thus reducing the risks of blade damage and overall overturning of the wind power device.

[0015] 2. For this wind power blade assembly capable of enhancing wind resistance performance, by setting up a guiding slide bar and a guiding slide sleeve, when the displacement block moves, the guiding slide sleeve moves along the guiding slide bar, so that the displacement block maintains the same orientation during the moving process. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a wind power blade assembly capable of enhancing wind resistance performance of the present utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the support frame of a wind power blade assembly capable of enhancing wind resistance performance of the present utility model;

[0018] Figure 3 It is a wind power blade assembly capable of enhancing wind resistance performance of the present utility model Figure 2 The enlarged view at A in;

[0019] Figure 4 The figure is a schematic structural diagram of an automatic winding shaft for a wind power blade assembly that can enhance wind resistance performance according to the present utility model.

[0020] In the figure: 1, blade main body; 2, support frame; 3, bidirectional lead screw; 4, drive motor; 5, displacement block; 6, support rod; 7, jacking long rod; 8, automatic winding shaft; 9, tarpaulin; 10, guiding slide bar; 11, first bevel gear; 12, second bevel gear; 13, telescopic through groove; 14, guiding sliding sleeve; 15, connecting seat. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 4 , the present utility model provides a wind power blade assembly that can enhance wind resistance performance, including a blade main body 1. A support frame 2 is fixedly installed inside the blade main body 1. Telescopic through grooves 13 are symmetrically opened on the upper and lower surfaces of the blade main body 1. Automatic winding shafts 8 are arranged on the inner wall of the blade main body 1 on both sides of the telescopic through groove 13. A bidirectional lead screw 3 is rotatably connected to the middle of the support frame 2. A drive motor 4 is fixedly installed on the side surface of one support frame 2. The output end of the drive motor 4 is in transmission connection with one end of the bidirectional lead screw. The bidirectional lead screw penetrates and is threadedly connected with symmetrically arranged displacement blocks 5. The top and bottom of the displacement block 5 are rotatably connected with support rods 6. The other end of the support rod 6 is rotatably connected with a jacking long rod 7. The jacking long rod 7 is slidably connected inside the telescopic through groove 13. The automatic winding shaft 8 winds a tarpaulin 9. The top of the jacking long rod 7 is in tight contact with the middle of the tarpaulin 9. By setting the tarpaulin 9 and the jacking long rod 7, in a gentle wind state, the drive motor 4 drives the bidirectional lead screw to rotate through the first bevel gear 11 and the second bevel gear 12, so that the two displacement blocks 5 move away from each other. The support rod 6 is used to push the jacking long rod 7 to extend out of the telescopic chute, and the tarpaulin 9 is jacked up, playing a role in increasing the windward area, thereby increasing the utilization rate of the wind farm; in a strong wind state, the drive motor 4 rotates reversely, so that the jacking long rod 7 is retracted into the blade main body 1 through the telescopic chute. Under the winding action of the automatic winding shaft 8, the flat tarpaulin 9 is automatically wound and fits with the outer surface of the blade main body 1, so that the outer surface of the blade main body 1 remains smooth, reducing the windward area, greatly reducing the force on the blade, and thus reducing the risk of blade damage and the overall overturning of the wind power device.

[0023] Both ends of the tarpaulin 9 are fixedly installed with the automatic winding shafts 8 on both sides of the telescopic through groove 13. The tarpaulin 9 passes through the blade body 1 on both sides of the telescopic through groove 13 and covers the top of the jacking long rod 7. The width of the tarpaulin 9 is the same as the length of the jacking long rod 7. Two connecting seats 15 are integrally arranged on one side of the jacking long rod 7 facing the bidirectional lead screw 3. The two connecting seats 15 are symmetrically arranged at both ends of the same side of the jacking long rod 7. One end of the support rod 6 is rotatably connected to the jacking long rod 7 through the connecting seat 15. The length of the support rod 6 is less than half of the length of the jacking long rod 7. The length of the telescopic through groove 13 is the same as the length of the jacking long rod 7, and the width of the telescopic through groove 13 is the same as the width of the jacking long rod 7.

[0024] The support frame 2 is fixedly installed with a guide slide bar 10 on one side of the bidirectional lead screw 3. One side of the displacement block 5 is integrally provided with a guide sliding sleeve 14. The guide sliding sleeve 14 is slidably connected through the guide slide bar 10. By providing the guide slide bar 10 and the guide sliding sleeve 14, when the displacement block 5 moves, the guide sliding sleeve 14 moves along the guide slide bar 10, so that the displacement block 5 maintains the same orientation during the moving process.

[0025] The output end of the driving motor 4 is fixedly installed with a first bevel gear 11. One end of the bidirectional lead screw 3 is fixedly installed with a second bevel gear 12 located outside the support frame 2. The second bevel gear 12 meshes with the first bevel gear 11.

[0026] Working principle:

[0027] In the light wind state, the driving motor 4 drives the bidirectional lead screw to rotate through the first bevel gear 11 and the second bevel gear 12, so that the two displacement blocks 5 move away from each other. The support rod 6 pushes the jacking long rod 7 to extend out of the telescopic chute, and the tarpaulin 9 is jacked up, playing a role in increasing the windward area, thereby increasing the utilization rate of the wind field. In the strong wind state, the driving motor 4 rotates in reverse, so that the jacking long rod 7 is retracted into the interior of the blade body 1 through the telescopic chute. Under the winding action of the automatic winding shaft 8, the flat tarpaulin 9 is automatically wound and fits with the outer surface of the blade body 1, so that the outer surface of the blade body 1 remains smooth, reducing the windward area and greatly reducing the force on the blade, thereby reducing the risk of blade damage and the overall overturning of the wind power device.

[0028] 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. A wind turbine blade assembly capable of enhancing wind resistance, comprising a blade body (1), characterized in that: A support frame (2) is fixedly installed inside the blade body (1), and telescopic grooves (13) are symmetrically opened on the upper and lower surfaces of the blade body (1). The inner wall of the blade body (1) is provided with an automatic winding shaft (8) located on both sides of the telescopic groove (13). A bidirectional lead screw (3) is rotatably connected to the middle part of the support frame (2), and a driving motor (4) is fixedly installed on the side of the support frame (2) on one side. The output end of the driving motor (4) is transmission-connected to one end of the bidirectional lead screw, and the bidirectional lead screw is threadedly connected to a symmetrically arranged displacement block (5). The top and bottom of the displacement block (5) are rotatably connected to a support rod (6), and the other end of the support rod (6) is rotatably connected to a lifting rod (7), and the lifting rod (7) is slidably connected to the inside of the telescopic groove (13). A tarpaulin (9) is wound around the automatic winding shaft (8), and the top of the lifting rod (7) is in tight contact with the middle part of the tarpaulin (9).

2. A wind turbine blade assembly capable of enhancing wind resistance according to claim 1, characterized in that: The two ends of the tarpaulin (9) are respectively fixedly mounted on the automatic reeling shafts (8) on both sides of the telescopic slot (13); the tarpaulin (9) passes through the blade bodies (1) on both sides of the telescopic slot (13) and covers the top of the lifting rod (7); the width of the tarpaulin (9) is the same as the length of the lifting rod (7).

3. A wind turbine blade assembly capable of enhancing wind resistance according to claim 1, characterized in that: The support frame (2) is fixedly mounted with a guide slide bar (10) located on one side of the bidirectional lead screw (3); a guide slide sleeve (14) is integrally provided on one side of the displacement block (5); and the guide slide sleeve (14) is slidably connected to the guide slide bar (10).

4. A wind turbine blade assembly capable of enhancing wind resistance according to claim 1, characterized in that: A first bevel gear (11) is fixedly mounted on the output end of the driving motor (4), and a second bevel gear (12) located outside the support frame (2) is fixedly mounted on one end of the bidirectional lead screw (3), and the second bevel gear (12) is meshed with the first bevel gear (11).

5. The wind turbine blade assembly capable of enhancing wind resistance according to claim 1, characterized in that: Two connecting seats (15) are integrally arranged on one side of the lifting rod (7) facing the bidirectional lead screw (3), and the two connecting seats (15) are symmetrically arranged at two ends of the same side of the lifting rod (7).

6. A wind turbine blade assembly capable of enhancing wind resistance according to claim 1, characterized in that: The length of the telescopic through slot (13) is the same as the length of the lifting long rod (7), and the width of the telescopic through slot (13) is the same as the width of the lifting long rod (7).

7. A wind turbine blade assembly capable of enhancing wind resistance according to claim 5, characterized in that: One end of the support rod (6) is rotatably connected to the lifting rod (7) via a connecting seat (15), and the length of the support rod (6) is less than half the length of the lifting rod (7).

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