A wind turbine flow guiding device

Abstract

This invention discloses a wind turbine airflow guiding device, including an airflow guide shroud with three fan blades movably mounted on its outer surface; it also includes a quick-installation mechanism for rapid installation of the fan blades; a second mounting ring is rotatably connected to the outer surface of a first mounting ring, and a rotating ring is rotatably connected to the outer surface of the second mounting ring; four right-angle connecting rods are uniformly rotatably connected to the outer surface of the rotating ring; four connecting buckles and a second fastening plate are fixedly installed on the outer surface of the fan blades, and one end of the fan blades is fixedly installed on the inner surface of the connecting buckles; the rotation of the output shaft of the second motor moves two clamping plates away from the limiting post, and then the output shaft of the first motor drives the gear to rotate, which further drives the gear ring to rotate the limiting rods and the fan blades, thereby deflecting the fan blades to ensure they are in the optimal wind-receiving state. After the fan blades are deflected, the limiting post is clamped and fixed by the two clamping plates to increase the stability of the fan blades and prevent them from loosening during rotation.

Description

Technical Field

[0001] This invention relates to the field of wind turbine airflow guidance technology, specifically a wind turbine airflow guidance device. Background Technology

[0002] A wind turbine's airflow guide, sometimes called an airflow control device or aerodynamic accessory, is an additional device installed on the wind turbine blades. Its main purpose is to optimize the airflow over the blade surface, thereby improving the wind turbine's aerodynamic efficiency and power generation.

[0003] A search revealed a patent document with publication number CN219452306U, which discloses a wind turbine fairing. The fairing includes a body with connecting frames fixedly connected to both sides. The connecting frames have slots fixedly connected to both sides inside. A blade tail end is fixedly connected to the middle of the connecting frame's interior. Telescopic rods are fixedly connected to the slots. In use, the design utilizes a limiting hole corresponding to a ball bearing fixedly located on the left side of the slot. Pulling a pull plate causes a compression plate to block the limiting hole in the slot. The blade tail end is then inserted into the connecting frame. During insertion, the telescopic rod is compressed, causing the ball bearing to slide on the surface of the slot, facilitating blade insertion. When the blade tail end reaches the bottom of the connecting frame, pulling the pull plate causes the compression plate to move outward. At this point, with no obstruction, the telescopic rod, due to inertia, causes the ball bearing at the top and a portion of the telescopic rod to be locked in the slot.

[0004] In actual use, when installing the blades, the ball bearings slide in the slots. When the installation is complete, the ball bearings at the top and part of the telescopic rod are locked in the slots. This makes it difficult to disassemble and maintain the blades.

[0005] Therefore, a wind turbine flow guiding device is proposed to address the above problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the problem that the blade angle cannot be adjusted according to the wind direction, this invention proposes a wind turbine guiding device.

[0007] A wind turbine air guide device includes an air guide shroud, on the outer surface of which three fan blades are movably mounted; It also includes a quick-installation mechanism for rapid installation of the fan blades; The outer surface of the first mounting ring is rotatably connected to a second mounting ring, the outer surface of the second mounting ring is rotatably connected to a rotating ring, and the outer surface of the rotating ring is uniformly rotatably connected to four right-angle connecting rods. Four connecting buckles and a second fastening plate are fixedly installed on the outer surface of the fan blade. One end of the fan blade is fixedly installed on the inner surface of the connecting buckle. The right-angle connecting rod and the connecting buckle are fixed by screws. A first fastening plate is fixedly installed on the outer surface of the second mounting ring, and the first fastening plate and the second fastening plate are fixed together by screws.

[0008] Preferably, a fixed cylinder is fixedly installed inside the cavity of the flow guide, and a gear ring is rotatably installed inside the cavity of the fixed cylinder, the gear ring meshing with a gear.

[0009] Preferably, a first motor is fixedly connected to one side of the gear, the first motor is fixedly installed on one side of the fixed cylinder, and the bottom of the gear ring is movably connected to the fan blade.

[0010] Preferably, the outer surface of the air guide is provided with three first mounting grooves, and three first mounting rings are fixedly installed on the outer surface of the air guide, and the fan blades are slidably installed on the inner surface of the first mounting rings.

[0011] Preferably, a limiting groove is formed on one side of the fixed cylinder, the toothed ring is rotatably mounted on the inner surface of the limiting groove, and a limiting rod is fixedly connected to the inner cavity of the toothed ring.

[0012] Preferably, a through groove is provided on one side of the limiting groove, the gear is rotatably mounted on the inner surface of the through groove, a slot is provided at one end of the fan blade, and the limiting rod is slidably mounted on the inner surface of the slot.

[0013] Preferably, a mounting plate is fixedly installed on one side of the limiting rod, a limiting post is fixedly connected to one side of the mounting plate, a mounting block is fixedly installed on one side of the fixing cylinder, a sliding groove is provided on one side of the mounting block, and a bidirectional threaded rod is rotatably installed on the inner surface of the sliding groove.

[0014] Preferably, two clamping plates are slidably installed on the inner surface of the mounting block, and the two clamping plates are threadedly connected to a bidirectional threaded rod. A second motor is fixedly connected to one end of the bidirectional threaded rod, and the second motor is fixedly installed on the inner wall of the guide shroud.

[0015] Preferably, a connecting sleeve is fixedly connected to one side of the flow guide, a support plate is fixedly installed on the inner wall of the connecting sleeve, and an installation sleeve is fixedly connected to one side of the support plate.

[0016] Preferably, a second mounting groove is provided on one side of the mounting sleeve, and a connecting shaft is slidably connected to the inner surface of the second mounting groove.

[0017] The advantages of this invention are: 1. This invention uses a rotating ring to make four right-angle connecting rods correspond to four connecting buckles respectively. Then, the first fastening plate is rotated so that one end of the first fastening plate is inserted into the inner cavity of the connecting buckle. The right-angle connecting rods and connecting buckles are further fixed by screws. At this time, the first fastening plate and the second fastening plate are fixed by screws. This makes it easier for workers to fix and install the fan blades and the guide fairing on the ground.

[0018] 2. This invention aligns the support plate with the already installed wind turbine unit, then rotatably connects the support plate and the wind turbine unit, and then inserts the connecting shaft into the inner cavity of the second mounting slot. When the fan blades and the guide vane rotate, the power generated by the rotation is transmitted through the connecting shaft. The plug-in design of the connecting shaft makes it convenient for workers to connect the guide vane and the wind turbine unit.

[0019] 3. In this invention, the output shaft of the second motor drives a bidirectional threaded rod to rotate. The bidirectional threaded rod, in conjunction with a sliding groove, limits the movement of two clamping plates, causing the two clamping plates to move closer together and clamp the limiting post. At this point, the limiting post cannot rotate, which in turn prevents the mounting plate, the limiting rod, and the fan blades from rotating. When a change in wind direction is sensed, the output shaft of the second motor rotates, causing the two clamping plates to move away from the limiting post. Then, the output shaft of the first motor drives a gear to rotate, which further drives a gear ring to rotate the limiting rod and the fan blades, thus deflecting the fan blades to ensure they are in the optimal wind-receiving state. After the fan blades are deflected, the two clamping plates clamp and fix the limiting post, increasing the stability of the fan blades. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of a fan blade mounting structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the air guide shield according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a gear meshing structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the limiting post installation structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the connecting shaft mounting structure according to an embodiment of the present invention.

[0022] In the diagram: 1. Draft shield; 11. First mounting groove; 2. First mounting ring; 21. Second mounting ring; 211. First fastening plate; 212. Second fastening plate; 213. Fan blade; 2131. Slot; 214. Connecting buckle; 22. Rotary ring; 23. Right-angle connecting rod; 24. Fixed cylinder; 241. Limiting groove; 242. Through groove; 25. First motor; 26. Gear; 27. Gear ring; 28. Limiting rod; 29. ​​Mounting plate; 3. Limiting post; 31. Mounting block; 32. Slide groove; 33. Bidirectional threaded rod; 34. Clamping plate; 35. Second motor; 4. Connecting sleeve; 41. Support plate; 42. Mounting sleeve; 421. Second mounting groove; 43. Connecting shaft. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on 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.

[0024] Please see Figures 1 to 6 As shown, a wind turbine guide device includes a guide shroud 1, on which three fan blades 213 are movably mounted; and a quick-installation mechanism for quickly installing the fan blades 213. A second mounting ring 21 is rotatably connected to the outer surface of a first mounting ring 2, and a rotating ring 22 is rotatably connected to the outer surface of the second mounting ring 21. Four right-angle connecting rods 23 are uniformly rotatably connected to the outer surface of the rotating ring 22. Four connecting buckles 214 and a second fastening plate 212 are fixedly installed on the outer surface of the fan blade 213. One end of the fan blade 213 is fixedly installed on the inner surface of the connecting buckle 214. The right-angle connecting rod 23 and the connecting buckle 214 are fixed by screws. The outer surface of the second mounting ring 21 is fixedly mounted with a first fastening plate 211, and the first fastening plate 211 and the second fastening plate 212 are fixed together by screws.

[0025] In use, after inserting the fan blade 213 into the inner cavity of the first mounting groove 11, the fan blade 213 and the first mounting ring 2 are further reinforced. At this time, the right-angle connecting rod 23 is rotated into the inner cavity of the connecting buckle 214. Then, the connecting buckle 214 and the right-angle connecting rod 23 are fixed with screws. During installation, in order to facilitate the installation of the four right-angle connecting rods 23 with the four connecting buckles 214, the four right-angle connecting rods 23 can be aligned with the four connecting buckles 214 by rotating the rotating ring 22. In order to avoid the fan blade 213 entering the inner cavity of the first mounting groove 11 too far, the fan blade 213 is limited by the first fastening plate 211. The fan blade 213 and the guide cover 1 can also be further fixed with screws.

[0026] Furthermore, such as Figure 4 As shown, a fixed cylinder 24 is fixedly installed in the inner cavity of the flow guide shroud 1. A toothed ring 27 is rotatably installed in the inner cavity of the fixed cylinder 24. The toothed ring 27 meshes with a gear 26. A first motor 25 is fixedly connected to one side of the gear 26. The first motor 25 is fixedly installed on one side of the fixed cylinder 24. The bottom of the toothed ring 27 is movably connected to the fan blade 213.

[0027] In use, the present invention has a sensor and a controller installed on the fan blade 213. When the sensor detects a change in wind direction, the controller adjusts the deflection angle of the fan blade 213 so that the wind turbine can make greater use of natural wind power. When the angle of the fan blade 213 needs to be adjusted, the output shaft of the first motor 25 drives the gear 26 to rotate, the gear 26 further drives the gear ring 27 to rotate, and at the same time the gear ring 27 drives the fan blade 213 to rotate, thus realizing the adjustment of the deflection angle of the fan blade 213.

[0028] Furthermore, such as Figure 2 As shown, the outer surface of the flow guide 1 has three first mounting grooves 11, and three first mounting rings 2 are fixedly installed on the outer surface of the flow guide 1. The fan blades 213 are slidably installed on the inner surface of the first mounting rings 2.

[0029] The generator set is assembled on the ground by assembling the fan blades 213 and the fairing 1. Therefore, when using it, one end of the fan blade 213 is first placed into the inner cavity of the first mounting slot 11. In order to facilitate the workers to insert the fan blade 213 into the inner cavity of the first mounting slot 11, one end of the fan blade 213 is first placed into the inner cavity of the first mounting ring 2. This can prevent the fan blade 213 from being unstable during installation due to strong winds in the field, which would cause the fan blade 213 to hit the outer wall of the fairing 1. This can protect the fairing 1. At the same time, the first mounting ring 2 can make the workers more stable when installing the fan blade 213.

[0030] Furthermore, such as Figure 3 and Figure 4As shown, a limiting groove 241 is provided on one side of the fixed cylinder 24, and the toothed ring 27 is rotatably installed on the inner surface of the limiting groove 241. A limiting rod 28 is fixedly connected to the inner cavity of the toothed ring 27. A through groove 242 is provided on one side of the limiting groove 241, the gear 26 is rotatably mounted on the inner surface of the through groove 242, a slot 2131 is provided at one end of the fan blade 213, and the limiting rod 28 is slidably mounted on the inner surface of the slot 2131. A mounting plate 29 is fixedly installed on one side of the limiting rod 28, a limiting post 3 is fixedly connected to one side of the mounting plate 29, a mounting block 31 is fixedly installed on one side of the fixing cylinder 24, a sliding groove 32 is opened on one side of the mounting block 31, and a bidirectional threaded rod 33 is rotatably installed on the inner surface of the sliding groove 32. Two clamping plates 34 are slidably installed on the inner surface of the mounting block 31. The two clamping plates 34 are threadedly connected to the bidirectional threaded rod 33. One end of the bidirectional threaded rod 33 is fixedly connected to a second motor 35, which is fixedly installed on the inner wall of the guide shroud 1.

[0031] When using this invention, after the entire wind turbine unit is installed, the fan blade 213 needs to be fixed. The output shaft of the second motor 35 drives the bidirectional threaded rod 33 to rotate. The bidirectional threaded rod 33, together with the mounting block 31, limits the sliding groove 32, allowing the two clamping plates 34 to move closer to each other, thereby clamping the limiting post 3. During use, the limiting rod 28 is located in the inner cavity of the slot 2131. When the fan blade 213 rotates, the fan blade 213 will rotate with the limiting rod 28, and the limiting rod 28 will further rotate with the mounting plate 29. In order to prevent the fan blade 213 from deviating during use, it is necessary to fix the fan blade 213. Therefore, the fan blade 213 can be fixed by clamping the limiting post 3 with the two clamping plates 34.

[0032] Furthermore, such as Figure 6 As shown, a connecting sleeve 4 is fixedly connected to one side of the flow guide shroud 1, a support plate 41 is fixedly installed on the inner wall of the connecting sleeve 4, an mounting sleeve 42 is fixedly connected to one side of the support plate 41, a second mounting groove 421 is opened on one side of the mounting sleeve 42, and a connecting shaft 43 is slidably connected to the inner surface of the second mounting groove 421.

[0033] In use, the present invention transmits the power generated by the rotation of the fan blade 213 through the connecting shaft 43. In order to facilitate the installation of the guide shroud 1 and the fan blade 213 on the wind turbine, the connecting shaft 43 is not connected to the guide shroud 1 or the connector connected to the fan blade 213 during installation. After the guide shroud 1 and the fan blade 213 are connected to the entire wind turbine, the connecting shaft 43 is then inserted into the inner cavity of the second mounting slot 421. This not only enables the transmission of power to the wind turbine, but also facilitates the assembly of the wind turbine by the workers.

[0034] Working principle: First, insert the fan blade 213 into the inner cavity of the first mounting ring 2 on the ground. The fan blade 213 enters the inner cavity of the first mounting groove 11 along the first mounting ring 2. At this time, the first fastening plate 211 and the second fastening plate 212 are tightly attached together. Then, by rotating the rotating ring 22, the four right-angle connecting rods 23 are respectively aligned with the four connecting buckles 214. Next, rotate the first fastening plate 211 so that one end of the first fastening plate 211 is inserted into the inner cavity of the connecting buckle 214. Finally, the right-angle connecting rods 23 and the connecting buckles 214 are fixed with screws. At this time, the first fastening plate 211 and the second fastening plate 212 are tightly attached together. The fastening plate 212 is fixed with screws, which makes it easy for workers to fix the fan blade 213 to the wind turbine 1 on the ground. When assembling the wind turbine 1 with the entire wind turbine, first make the support plate 41 correspond to the wind turbine that has been installed. Then make the support plate 41 and the wind turbine rotate and connect. At this time, the connecting shaft 43 is inserted into the inner cavity of the second mounting slot 421. When the fan blade 213 and the wind turbine 1 rotate, the power generated by the rotation is transmitted through the connecting shaft 43. The plug-in design of the connecting shaft 43 makes it easy for workers to connect the wind turbine 1 to the wind turbine.

[0035] After installation, the limiting rod 28 is in the inner cavity of the slot 2131. Then, the output shaft of the second motor 35 drives the bidirectional threaded rod 33 to rotate. The bidirectional threaded rod 33, together with the sliding groove 32, limits the two clamping plates 34, causing the two clamping plates 34 to move closer to each other and clamp the limiting post 3. At this time, the limiting post 3 cannot rotate, which in turn prevents the mounting plate 29, the limiting rod 28, and the fan blade 213 from rotating. When a change in wind direction is sensed, the output shaft of the second motor 35 rotates the two clamping plates 34 away from the limiting post 3. Then, the output shaft of the first motor 25 drives the gear 26 to rotate. The gear 26 further drives the gear ring 27 to rotate the limiting rod 28 and the fan blade 213, which can deflect the fan blade 213 so that the fan blade 213 can be in the best wind-receiving state. After the fan blade 213 is deflected, the two clamping plates 34 clamp and fix the limiting post 3, increasing the stability of the fan blade 213.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A wind turbine guide device, comprising a guide shroud (1), wherein three fan blades (213) are movably mounted on the outer surface of the guide shroud (1); It also includes a quick-installation mechanism for quickly installing the fan blades (213); Its features are: The outer surface of the first mounting ring (2) is rotatably connected to the second mounting ring (21), the outer surface of the second mounting ring (21) is rotatably connected to the rotating ring (22), and the outer surface of the rotating ring (22) is uniformly rotatably connected to four right-angle connecting rods (23). The outer surface of the fan blade (213) is fixedly installed with four connecting buckles (214) and a second fastening plate (212). One end of the fan blade (213) is fixedly installed on the inner surface of the connecting buckle (214). The right-angle connecting rod (23) and the connecting buckle (214) are fixed with screws. The outer surface of the second mounting ring (21) is fixedly mounted with a first fastening plate (211), and the first fastening plate (211) and the second fastening plate (212) are fixed with screws.

2. The wind turbine generator flow guiding device according to claim 1, characterized in that: A fixed cylinder (24) is fixedly installed in the inner cavity of the flow guide (1), and a toothed ring (27) is rotatably installed in the inner cavity of the fixed cylinder (24), and the toothed ring (27) is engaged with a gear (26).

3. A wind turbine flow guiding device according to claim 2, characterized in that: The gear (26) is fixedly connected to one side of a first motor (25), which is fixedly installed on one side of a fixed cylinder (24). The bottom of the gear ring (27) is movably connected to the fan blade (213).

4. A wind turbine flow guiding device according to claim 3, characterized in that: The outer surface of the shroud (1) is provided with three first mounting grooves (11), and three first mounting rings (2) are fixedly installed on the outer surface of the shroud (1). The fan blade (213) is slidably installed on the inner surface of the first mounting ring (2).

5. A wind turbine flow guiding device according to claim 4, characterized in that: A limiting groove (241) is provided on one side of the fixed cylinder (24), and the toothed ring (27) is rotatably installed on the inner surface of the limiting groove (241). A limiting rod (28) is fixedly connected to the inner cavity of the toothed ring (27).

6. A wind turbine flow guiding device according to claim 5, characterized in that: A through groove (242) is provided on one side of the limiting groove (241), and the gear (26) is rotatably installed on the inner surface of the through groove (242). A slot (2131) is provided at one end of the fan blade (213), and the limiting rod (28) is slidably installed on the inner surface of the slot (2131).

7. A wind turbine flow guiding device according to claim 6, characterized in that: A mounting plate (29) is fixedly installed on one side of the limiting rod (28), and a limiting post (3) is fixedly connected to one side of the mounting plate (29). A mounting block (31) is fixedly installed on one side of the fixing cylinder (24), and a sliding groove (32) is provided on one side of the mounting block (31). A bidirectional threaded rod (33) is rotatably installed on the inner surface of the sliding groove (32).

8. A wind turbine flow guiding device according to claim 7, characterized in that: Two clamping plates (34) are slidably installed on the inner surface of the mounting block (31). The two clamping plates (34) are threadedly connected to the bidirectional threaded rod (33). One end of the bidirectional threaded rod (33) is fixedly connected to a second motor (35). The second motor (35) is fixedly installed on the inner wall of the guide shield (1).

9. A wind turbine flow guiding device according to claim 8, characterized in that: A connecting sleeve (4) is fixedly connected to one side of the flow guide (1), a support plate (41) is fixedly installed on the inner wall of the connecting sleeve (4), and an installation sleeve (42) is fixedly connected to one side of the support plate (41).

10. A wind turbine flow guiding device according to claim 9, characterized in that: The mounting sleeve (42) has a second mounting groove (421) on one side, and a connecting shaft (43) is slidably connected to the inner surface of the second mounting groove (421).

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