Power generation device capable of adjusting windward area of fan blade

Abstract

The utility model discloses a power generation device capable of adjusting the windward area of fan blades. The power generation device comprises a supporting mechanism, an impeller power generation mechanism, a fan blade windward direction changing mechanism and an intelligent control system. According to the power generation device, the fan blade windward turning mechanism is arranged on the inner side of the front section of the fan blade, so that the manufacturing difficulty of a fan blade turning track is reduced, and transportation and installation are facilitated; the fan blade windward turning rails can rotate relatively and are provided with telescopic components capable of enabling the fan blade windward turning rails to move up and down, so that the directions of the fan blades are changed, the windward area is changed, the generating capacity of the whole device is reduced, on one hand, damage caused by overload of the generator is prevented, and on the other hand, damage to the whole device due to large windward stress of the fan blades is avoided. The stability is improved; in addition, an existing large-size driving gear structure is changed through a power generation rotating shaft and a multi-stage gear, and the machining process and installation and transportation difficulty of the whole device are greatly reduced.

Description

Technical Field

[0001] This utility model relates to a wind power technology, specifically to a power generation device with adjustable wind turbine blade frontal area. Background Technology

[0002] Existing wind turbines are generally divided into horizontal-axis wind turbines and vertical-axis wind turbines. Horizontal-axis wind turbines have a higher starting wind speed than vertical-axis wind turbines, and are usually installed in large wind farms. They have high requirements for installation space and geographical environment, and are not suitable for urban public lighting in densely populated areas, thus having significant limitations. The blades of horizontal-axis wind turbines are mounted on the same longitudinal plane via a horizontal axis. Due to the influence of blade length and starting wind speed, they usually need to be placed at a height of tens of meters, which brings many inconveniences to the installation, maintenance, and repair of the generator. In contrast, vertical-axis wind turbines, on the other hand, have their rotors supported by columns and mounted on the same horizontal plane. The installation height is not affected by blade size, allowing for low-height installation. Moreover, the generator of a vertical-axis wind turbine is usually located near the ground, which facilitates installation and maintenance. At the same time, vertical-axis wind turbines have advantages such as low starting wind speed, low noise, and have broad application prospects. However, in practical applications, it has been found that the rotor blades of vertical axis wind turbines have poor controllability, with problems such as unstable wind resistance of the windward blades and the self-resistance of the leeward blades affecting the rotor rotation. This leads to low power generation and low wind energy utilization of vertical axis wind turbines.

[0003] Chinese utility model patent CN221568708U discloses a power generation device based on a wind turbine with variable blade orientation, comprising a central column, a rotating sleeve at the top of the central column, a plurality of wind turbine shafts uniformly arranged on the rotating sleeve, each wind turbine shaft having a gear connecting rod at its end, the end of each gear connecting rod being connected to a drive gear, the drive gear being located on a gear support ring, the drive gear meshing with a generator gear, the generator gear being mounted on the shaft of a horizontally placed generator; and a wind turbine orientation mechanism on the central column. This power generation device can effectively guide and control the direction of the windward and leeward blades, and has the advantages of large blade utilization area, low blade resistance, large torque generation, high single-unit power generation, and good stability. However, it still has the following problems: First, the diameter of the blade reversing track is more than twice the length of the blade. If the blade needs to be set to a large size, the diameter of the blade reversing track must be increased by the same multiple. On the one hand, this increases the manufacturing process, and on the other hand, the blade reversing track is large and heavy, making it difficult to transport and install. Second, the fixed connection between the blade turning track and the blade horizontal track in the blade reversing track, that is, the blade... The steering track cannot rotate, ensuring that the fan blades on the steering track are always perpendicular to the wind direction, maximizing their frontal area. In strong winds, this results in high power generation, potentially exceeding the generator's rated power and causing damage. Furthermore, the high torque generated can also damage the generator. Additionally, the drive gear's diameter is greater than twice the fan blade length. When the fan blade size is large, the drive gear diameter is proportionally adjusted. Since calibration during installation is impossible, precise manufacturing of the drive gear is crucial. Moreover, the large drive gear occupies significant space and is bulky, making transportation and installation difficult. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a power generation device with an adjustable blade windward area. This device, unlike existing structures, places the blade windward direction-changing mechanism on the inner side of the front section of the blade, significantly reducing the diameter of the windward direction-changing track, lowering its manufacturing difficulty, and facilitating transportation and installation. The windward direction-changing tracks of the blade can rotate relative to each other and are equipped with telescopic components that allow them to move up and down, changing the direction of the blade and thus altering the windward area. This reduces the overall power generation of the device, preventing generator overload and damage, and avoiding damage to the entire device due to excessive windward force on the blades, thus improving stability. Furthermore, by using a power generation shaft and multi-stage gears to redirect the existing large-sized drive gear structure, the processing technology and installation and transportation difficulties of the entire device are greatly reduced.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An adjustable blade windward area power generation device, including a support mechanism, an impeller power generation mechanism, a blade windward direction changing mechanism, and an intelligent control system;

[0007] The support mechanism includes a cylindrical support base, on which are provided several impeller power generation support columns. Several support connecting rods are evenly provided along the circumference of the support base. All support connecting rods are connected to the bottom ring of the impeller support. Several impeller track ring columns are evenly provided along the circumference of the bottom ring of the impeller support. The top of each impeller track ring column is connected to the impeller rotating track ring.

[0008] The impeller power generation mechanism includes a generator mounting platform connected to the top of all impeller power generation support columns. Several generators are mounted on the generator mounting platform. The input shaft of each generator is connected to a central gear via a multi-stage gear. The central gear passes through a vertically arranged power generation shaft. A fan blade shaft mounting plate is located at the top of the power generation shaft. Several fan blade shafts are evenly arranged along the circumferential direction on the fan blade shaft mounting plate. One end of each fan blade shaft is connected to the fan blade shaft mounting plate via a shaft bearing sleeve. The other end of each fan blade shaft is connected to a fan blade rotation track ring via a rolling bearing. All fan blade shafts are connected to a fan blade connecting ring via a fixed bearing sleeve. The fan blade connecting ring and the fan blade rotation track ring are concentric circles and adjacent to each other. Each fan blade shaft is equipped with a fan blade that can rotate along its axis. The front end of each fan blade is connected to a fan blade windward direction-changing mechanism. The rear end of each fan blade is located in front of the fan blade shaft. Each fan blade includes a fan-shaped fan blade support located below the fan blade shaft, and the fan blade body is mounted on the fan blade support.

[0009] The wind turbine blade reversing mechanism is mounted on the generator shaft and located between the wind turbine shaft mounting plate and the generator mounting platform. The mechanism includes a track support platform fixed to the generator mounting platform and sleeved on the generator shaft. A reversible motor is mounted on the track support platform. A transmission gear is sleeved on the output shaft of the reversible motor, meshing with a rotating gear. The rotating gear is clamped onto a track rotating sleeve, which is sleeved on the generator shaft. A reversing track support ring is located at the bottom end of the track rotating sleeve along its circumference via a connecting rod. A wind turbine blade reversing track is mounted on the reversing track support ring. This reversing track includes a semi-circular horizontal wind turbine blade rail. The bottom end of the horizontal wind turbine blade rail is connected to the reversing track support ring via several vertically arranged horizontal track support rods. Both ends of the horizontal wind turbine blade rail are hinged to wind turbine blade steering rails. The blade steering rail is designed with a downward-sloping arc shape. Each blade steering rail has a rail connecting rod along its arc direction that connects to the top of the rail rotating sleeve. The blade steering rail is also connected to a telescopic component that connects to the rail connecting rod at its telescopic end. The telescopic component is connected to the intelligent control system. Several linkage bearing sleeves are evenly arranged on the blade steering rail. The number of linkage bearing sleeves is the same as the number of blade rotating shafts. Each linkage bearing sleeve has a linkage shaft that can rotate within it. Each linkage shaft is connected to a blade linkage component. The blade linkage component includes a linkage support block connected to the end of the linkage shaft. The side end of the linkage support block is connected to the side of the blade support. Several linkage rods are vertically arranged on the linkage support block. Several linkage plates are horizontally arranged on the linkage support block that connect to the front center of the blade support. Several linkage grooves are provided on the linkage plates that correspond one-to-one with the linkage rods.

[0010] The intelligent control system is a control system centered on a programmable controller. The intelligent control system includes a wind direction detector mounted on a support mechanism. The programmable controller is connected to a forward and reverse motor.

[0011] As a preferred technical solution, in order to enable each generator to generate electricity at different wind speeds, thereby improving the overall power generation of the power generation device, and at the same time preventing the generator from being overloaded when the wind speed is too high, the power of all generators is set incrementally, and all generators are equipped with a clutch control switch, which is connected to the intelligent control system.

[0012] As a preferred technical solution, in order to facilitate the maintenance of the generator and ensure the safety of maintenance personnel, the generator mounting platform is equipped with a guardrail, and a ladder is provided between the guardrail and the support base.

[0013] As a preferred technical solution, in order to ensure the stability of the track support platform and the connection between the impeller generator support columns, and also to improve the stability of the entire support structure, a connecting and stabilizing rod is provided between all the impeller generator support columns. The track support platform is connected to the connecting and stabilizing rod through a reinforcing rod that passes through the generator mounting platform.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This power generation device, based on existing structures, places the windward reversal mechanism of the wind turbine blades on the inner side of the front section of the blades, greatly reducing the diameter of the wind turbine reversal track, lowering the manufacturing difficulty of the wind turbine reversal track, and facilitating transportation and installation. The windward reversal tracks of the wind turbine blades can rotate relative to each other and are also equipped with telescopic components that can move them up and down, changing the direction of the wind turbine blades and thus changing the windward area, thereby reducing the power generation of the entire device. On the one hand, this prevents the generator from being damaged due to overload, and on the other hand, it avoids damage to the entire device due to large windward forces on the wind turbine blades, improving stability. In addition, by using the generator shaft and multi-stage gears to redirect the existing large-sized drive gear structure, the processing technology and installation and transportation difficulty of the entire device are greatly reduced.

[0016] 2. All generators are equipped with a clutch control switch, which is connected to the intelligent control system. This allows each generator to generate electricity at different wind speeds, thereby increasing the overall power output of the generator and preventing generator overload when the wind speed is too high.

[0017] 3. The generator installation platform is equipped with guardrails and ladders to facilitate generator maintenance and ensure the safety of maintenance personnel.

[0018] 4. All impeller generator support columns are equipped with connecting and stabilizing rods. The track support platform is connected to the connecting and stabilizing rods through the generator mounting platform, ensuring the stability of the track support platform and the connection between the impeller generator support columns, while also improving the stability of the entire support structure. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is an isometric view of the present invention.

[0022] Figure 3 This is a structural diagram of the support mechanism.

[0023] Figure 4 This is a mechanism for changing the direction of a wind turbine blade.

[0024] Reference numerals: 1. Support mechanism; 1-1. Support base; 1-2. Impeller generator support column; 1-3. Support connecting rod; 1-4. Fan blade support bottom ring; 1-5. Fan blade track ring column; 1-6. Fan blade rotation track ring; 1-7. Connecting stabilizing rod; 1-8. Reinforcing stabilizing rod; 2. Impeller generator mechanism; 2-1. Generator mounting platform; 2-2. Generator; 2-3. Generator shaft; 2-4. Fan blade shaft mounting plate; 2-5. Fan blade shaft; 2-6. Shaft bearing sleeve; 2-7. Rolling bearing; 2-8. Fixed bearing sleeve; 2-9. Fan blade connecting ring; 2-10. Fan blade; 2-10-1. Fan blade bracket; 2-10-2. Fan blade body; 2-11. Enclosure 2-12. Guardrail; 3. Ladder; 4. Fan blade windward direction changing mechanism; 5. Track support platform; 6. Forward and reverse motor; 7. Transmission gear; 8. Rotating gear; 9. Track rotating sleeve; 10. Direction changing track support ring; 11. Fan blade direction changing track; 12. Horizontal rail of fan blade; 13. Horizontal rail steering rail of fan blade; 14. Horizontal rail support rod; 15. Telescopic component; 26. Linkage bearing sleeve; 37. Linkage shaft; 48. Fan blade linkage component; 59. Linkage support block; 60. Linkage rod; 71. Linkage plate; 82. Linkage groove; 93. Reinforcing rod; 10. Track connecting rod. Detailed Implementation

[0025] like Figure 1 The present invention provides a specific embodiment of a power generation device with adjustable blade windward area, comprising a support mechanism 1, an impeller power generation mechanism 2, a blade windward direction changing mechanism 3, and an intelligent control system.

[0026] The support mechanism 1 includes a cylindrical support base 1-1. Several impeller power generation support columns 1-2 are mounted on the support base 1-1. In this embodiment, seven impeller power generation support columns 1-2 are provided, with six evenly distributed along the circumference of the upper surface of the support base 1-1 and one positioned at the center of the support base 1-1. The seven impeller power generation support columns 1-2 are vertically mounted on the support base 1-1. Several support connecting rods 1-3 are evenly distributed along the circumference of the support base 1-1. All support connecting rods 1-3 are connected to the blade support bottom ring 1-4. Several blade track ring columns 1-5 are evenly distributed along the circumference of the blade support bottom ring 1-4. To ensure the stability of the blade track ring columns 1-5, in this embodiment, reinforcing and stabilizing rods 1-8 are provided between the spaced-apart blade track ring columns. The tops of the blade track ring columns 1-2 are all connected to the blade rotation track ring 1-6. Figure 3 As shown, the diameter of the wind turbine rotating track ring 1-6 is the same as that of the wind turbine support bottom ring 1-4.

[0027] The impeller power generation mechanism 2 includes a generator mounting platform 2-1 connected to the top of all impeller power generation support columns 1-2. Several generators 2-2 are mounted on the generator mounting platform 2-1. The input shaft of each generator 2-2 is connected to a central gear via a multi-stage gear system. The central gear passes through a vertically arranged power generation shaft 2-3. Rotation of the power generation shaft 2-3 drives the rotation of all generators 2-2 via the multi-stage gear transmission. A blade shaft mounting plate 2-4 is provided at the top of the power generation shaft 2-3. The blade shaft mounting plate 2-4 is connected to the generator... The rotating shafts 2-3 can rotate synchronously. Several fan blade rotating shafts 2-5 are evenly arranged along the circumferential direction on the fan blade rotating shaft mounting plate 2-4. In this embodiment, six fan blade rotating shafts 2-5 are provided. One end of each fan blade rotating shaft 2-5 is connected to the fan blade rotating shaft mounting plate 2-4 via a rotating shaft bearing sleeve 2-6, and the other end of each fan blade rotating shaft 2-5 is connected to the fan blade rotation track ring 1-6 via a rolling bearing 2-7. In this embodiment, a rotation groove matching the rolling bearing 2-7 is provided on the fan blade rotation track ring 1-6, allowing the rolling bearing 2-7 to rotate along the fan blade rotation track. Rings 1-6 rotate, and all fan blade shafts 2-5 are connected to a fan blade connecting ring 2-9 via fixed bearing sleeves 2-8. The fan blade connecting ring 2-9 and the fan blade rotation track ring 1-6 are concentric circles and adjacent to each other. Each fan blade shaft 2-5 is equipped with a fan blade 2-10 that can rotate along its axis. The front end of the fan blade 2-10 is connected to the fan blade windward direction-changing mechanism 3, and the rear end of the fan blade 2-10 is located in front of the fan blade shaft 2-5. The fan blade 2-10 includes a fan-shaped fan blade support 2-10-1 located below the fan blade shaft 2-5. The blade support 2-10-1 is provided with the blade body 2-10-2, so all the blades 2-10 form a circle. In order to make the blades form a bowl-shaped structure to bear the force when they are facing the wind, so as to drive the rotation of the generator shaft 2-3 more easily, the blade body 2-10-2 is made of textile material with a certain deformation capacity in this embodiment. All the blades 2-10 and the blade connecting ring 2-9 form a wind impeller. This is beneficial to the fact that when a certain blade 2-10 rotates, it can drive the entire wind impeller to rotate, thereby driving the generator shaft 2-3 to rotate and making the generator 2-2 generate electricity.

[0028] The wind turbine blade reversing mechanism 3 is mounted on the generator shaft 2-3 and located between the wind turbine shaft mounting plate 2-4 and the generator mounting platform 2-1. The wind turbine blade reversing mechanism 3 includes a track support platform 3-1 fixed to the generator mounting platform 2-1 and sleeved on the generator shaft 2-3. A forward / reverse motor 3-2 is mounted on the track support platform 3-1. A transmission gear 3-3 is sleeved on the output shaft of the forward / reverse motor 3-2. The transmission gear 3-3 meshes with a rotating gear 3-4. The rotating gear 3-4 is clamped onto a track rotating sleeve 3-5, which is sleeved on the generator shaft 2-3. When the forward / reverse motor 3-2 drives the transmission gear 3-3 to rotate synchronously, the rotating gear 3-4 rotates synchronously, and the track rotating sleeve 3-5 drives the generator shaft 2-3 to rotate synchronously. The bottom end of the track rotating sleeve 3-5 has a reversing mechanism along its circumference via a connecting rod. A track support ring 3-6 is provided, on which a fan blade reversing track 3-7 is provided. The fan blade reversing track 3-7 includes a semi-circular horizontal fan blade rail 3-7-1. The bottom end of the horizontal fan blade rail 3-7-1 is connected to the track support ring 3-6 through several vertically arranged horizontal track support rods 3-8. The horizontal track support rods 3-8 are arranged along the semi-circular arc of the track support ring 3-6. Both ends of the horizontal fan blade rail 3-7-1 are hinged to the fan blade steering rail 3-7-2. The fan blade steering rail 3-7-2 is set in an arc shape with a downward tilt angle, so the fan blade reversing rail 3-7-2 can rotate up and down along the hinged ends. Each fan blade reversing track 3-7 has a track connecting rod 3-14 along its arc direction, which is connected to the top end of the track rotating sleeve 3-5. The fan blade steering rail 3-7-2 is also connected to a telescopic member 3-9 whose telescopic end is connected to the track connecting rod 3-14. Figure 4As shown, the fixed end of the telescopic component 3-9 is fixed to the connecting rod. The telescopic component 3-9 is connected to the intelligent control system. In this embodiment, the telescopic component 3-9 is set as a cylinder or hydraulic cylinder. The intelligent control system starts or stops the telescopic component 3-9 according to the received signal, causing the fan blade steering rail 3-7-2 to swing up or down, thereby changing the angle between the fan blade steering rail 3-7-2 and the fan blade horizontal rail 3-7-1. Several linkage bearing sleeves 3-10 are evenly provided on the fan blade steering rail 3-7. The number of linkage bearing sleeves 3-10 is the same as the number of fan blade rotating shafts 2-5. Each linkage bearing sleeve 3-10 is provided with a linkage shaft 3-11 that can rotate inside it. Each linkage shaft 3-11 is connected to the fan blade linkage component 3-1. 2. Connection: The fan blade linkage component 3-12 includes a linkage support block 3-12-1 connected to the end of the linkage shaft 3-11. The side end of the linkage support block 3-12-1 is connected to the side of the fan blade bracket 2-10-1. The linkage support block 3-12-1 has several vertically arranged linkage rods 3-12-2. For ease of installation and manufacturing, in this embodiment, the linkage rods 3-12-2 are bolts, fixed to the linkage support block 3-12-1 by nuts. The linkage support block 3-12-1 has horizontally arranged linkage plates 3-12-3 connected to the central front end of the fan blade bracket 2-10-1. The linkage plates 3-12-3 have several linkage grooves 3-12-4 corresponding one-to-one with the linkage rods 3-12-2. Figure 2 As shown, when the wind deflection track 3-7 needs to change position according to the wind force or wind direction, the wind blade 2-10 can be driven to change direction under the action of the linkage 3-12.

[0029] The intelligent control system is a control system centered on a programmable controller. The intelligent control system includes a wind direction detector mounted on the support mechanism 1. The programmable controller is connected to a forward and reverse motor 3-2. When the wind direction detector detects a change in wind direction, the programmable controller starts the forward and reverse motor 3-2 to rotate according to the signal received from the wind direction detector. This rotates the wind vane reversing track 3-7, thereby causing the wind vane 2-10 to change direction, ensuring that one of the wind vanes 2-10 is perpendicular to the wind direction. When the programmable controller calculates that the instantaneous power generation exceeds the rated capacity of the generator, the programmable controller activates the telescopic component 3-9 to extend or shorten, thereby causing the wind vane reversing track 3-7 to change direction, thus reducing the windward area of ​​the wind vane 2-10.

[0030] The power of all generators 2-2 is set incrementally, and each generator 2-2 is equipped with a clutch control switch. The clutch control switch is connected to the intelligent control system. The intelligent control system calculates the power generation based on the wind speed, and then starts the corresponding generator by activating the clutch control switch of the corresponding generator power. The clutch switches of the other generators are in the open state, so that each generator 2-2 can generate electricity for different wind speeds. This helps to increase the power generation of the entire power generation device, while preventing the generator from being overloaded when the wind speed is too high.

[0031] The generator mounting platform 2-2 is equipped with a guardrail 2-11, and a ladder is provided between the guardrail 2-11 and the support base 1-1 to facilitate the maintenance of the generator 2-2 and ensure the safety of maintenance personnel.

[0032] All impeller generator support columns 1-2 are equipped with connecting and stabilizing rods 1-7. The track support platform 3-1 is connected to the connecting and stabilizing rods 1-7 through the reinforcing rods 3-13 that pass through the generator mounting platform 2-1, ensuring the stability of the track support platform and the connection between the impeller generator support columns, while also improving the stability of the entire support structure.

[0033] The power generation device with adjustable blade windward area described in this embodiment is installed in a suitable open location. When the wind-facing blades 2-10 are in the windward position, they rotate under the action of the blade connecting ring 2-9, causing all blades 2-10 to rotate. This, in turn, rotates the power generation shaft 2-3, which in turn generates electricity through multi-stage gear transmission to the generator 2-2. During power generation, the intelligent control system calculates the power output based on the wind speed and then starts the generator 2-2 with the corresponding power output. When the wind direction changes, the wind direction detector transmits the detected signal to the intelligent control system, activating the forward / reverse motor 3-2 to rotate, causing the blade reversing track 3-7 to rotate, thus changing the direction of the blades 2-10 to ensure that one blade 2-10 is perpendicular to the wind direction. When the program controller calculates that the instantaneous power output exceeds the generator's rated capacity, the program controller activates the telescopic component 3-9 to extend or shorten, thereby changing the direction of the blade reversing track 3-7, thus reducing the windward area of ​​the blades 2-10 and reducing the power output.

[0034] Of course, the above description is only a detailed description of the preferred embodiments of the present utility model in conjunction with the accompanying drawings, and is not intended to limit the scope of implementation of the present utility model. All equivalent changes made in accordance with the principles, construction and structure of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A power generation device with adjustable blade windward area, characterized in that: It includes a support structure (1), an impeller power generation mechanism (2), a wind turbine blade wind-adapting mechanism (3), and an intelligent control system; The support mechanism (1) includes a cylindrical support base (1-1), on which a plurality of impeller power generation support columns (1-2) are provided. The support base (1-1) is provided with a plurality of support connecting rods (1-3) evenly arranged along its circumference. All support connecting rods (1-3) are connected to the blade support bottom ring (1-4). The blade support bottom ring (1-4) is provided with a plurality of blade track ring columns (1-5) evenly arranged along its circumference. The top of each blade rotation ring column (1-5) is connected to the blade rotation track ring (1-6). The impeller power generation mechanism (2) includes a generator mounting platform (2-1) connected to the top of all impeller power generation support columns (1-2). Several generators (2-2) are mounted on the generator mounting platform (2-1). The input shaft of each generator (2-2) is connected to a central gear via a multi-stage gear. The central gear passes through a vertically arranged power generation shaft (2-3). A blade shaft mounting plate (2-4) is provided at the top of the power generation shaft (2-3). Several blade shafts (2-5) are evenly arranged along the circumferential direction on the blade shaft mounting plate (2-4). One end of each blade shaft (2-5) is connected to the blade shaft mounting plate (2-4) via a shaft bearing sleeve (2-6). The other end of each blade shaft (2-5) is connected via a rolling bearing sleeve. The bearing (2-7) is connected to the fan blade rotation track ring (1-6). All fan blade shafts (2-5) are connected to a fan blade connecting ring (2-9) through a fixed bearing sleeve (2-8). The fan blade connecting ring (2-9) and the fan blade rotation track ring (1-6) are concentric circles and are arranged adjacent to each other. Each fan blade shaft (2-5) is provided with a fan blade (2-10) that can rotate along its axis. The front end of the fan blade (2-10) is connected to the fan blade windward direction changing mechanism (3). The rear end of the fan blade (2-10) is located in front of the fixed bearing sleeve (2-8). The fan blade (2-10) includes a fan blade support (2-10-1) in the shape of a fan blade located under the fan blade shaft (2-5). The fan blade support (2-10-1) is provided with a fan blade body (2-10-2). The wind turbine reversing mechanism (3) is located on the generator shaft (2-3) and between the wind turbine shaft mounting plate (2-4) and the generator mounting platform (2-1). The wind turbine reversing mechanism (3) includes a track support platform (3-1) fixed on the generator mounting platform (2-1) and sleeved on the generator shaft (2-3). The track support platform (3-1) is equipped with a forward and reverse motor (3-2). A transmission gear (3-3) is sleeved on the output shaft of the forward and reverse motor (3-2). The transmission gear (3-3) meshes with a rotating gear (3-4). The rotating gear (3-4) is clamped on the track rotating sleeve (3-5). -5) Sleeved on the generator shaft (2-3), the bottom end of the track rotating sleeve (3-5) is provided with a reversing track support ring (3-6) along its circumference via a connecting rod. The reversing track support ring (3-6) is provided with a blade reversing track (3-7). The blade reversing track (3-7) includes a semi-circular blade horizontal rail (3-7-1). The bottom end of the blade horizontal rail (3-7-1) is connected to the reversing track support ring (3-6) via several vertically arranged horizontal track support rods (3-8). Both ends of the blade horizontal rail (3-7-1) are hinged to the blade steering rail (3-7-2). The blade steering rail (3-7-2) is provided with an arc with a downward tilt angle. The fan blade reversing track (3-7) is provided with a track connecting rod (3-14) along its arc direction, which is connected to the top of the track rotating sleeve (3-5). The fan blade steering rail (3-7-2) is also connected to a telescopic member (3-9) whose telescopic end is connected to the track connecting rod (3-14). The telescopic member (3-9) is connected to the intelligent control system. Several linkage bearing sleeves (3-10) are evenly provided on the fan blade reversing track (3-7). The number of linkage bearing sleeves (3-10) is the same as the number of fan blade rotating shafts (2-5). Each linkage bearing sleeve (3-10) is provided with a linkage shaft (3-11) that can rotate inside it. Each linkage shaft (3-11) is connected to the fan blade rotating shaft. The blade linkage component (3-12) is connected, and the blade linkage component (3-12) includes a linkage support block (3-12-1) connected to the end of the linkage shaft (3-11). The side end of the linkage support block (3-12-1) is connected to the side of the blade bracket (2-10-1). The linkage support block (3-12-1) has several vertical linkage rods (3-12-2) and a linkage plate (3-12-3) connected to the front center of the blade bracket (2-10-1) is provided horizontally on the linkage support block (3-12-1). The linkage plate (3-12-3) has several linkage grooves (3-12-4) that correspond one-to-one with the linkage rods (3-12-2). The intelligent control system is a control system centered on a programmable controller. The intelligent control system includes a wind direction detector mounted on a support mechanism (1). The programmable controller is connected to a forward and reverse motor (3-2).

2. The power generation device with adjustable blade windward area according to claim 1, characterized in that: The power of all generators (2-2) is set in an incremental manner, and all generators (2-2) are equipped with a clutch control switch, which is connected to the intelligent control system.

3. The power generation device with adjustable blade windward area according to claim 1 or 2, characterized in that: The generator mounting platform (2-1) is equipped with a guardrail (2-11), and a ladder (2-12) is provided between the guardrail (2-11) and the support base (1-1).

4. The power generation device with adjustable blade windward area according to claim 3, characterized in that: All impeller generator support columns (1-2) are equipped with connecting and stabilizing rods (1-7). The track support platform (3-1) is connected to the connecting and stabilizing rods (1-7) through the reinforcing rods (3-13) that pass through the generator mounting platform (2-1).

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