A dual-shaft inclined tower chain-driven wind power generation device

Abstract

This invention provides a dual-axis inclined tower chain-driven wind power generation device, belonging to the technical field of wind power equipment. The device includes an inclined tower frame, a chain-driven wind energy harvesting mechanism, and a support mechanism. The inclined tower frame is tilted in the downwind direction and includes an upper tower section and a lower tower section, with the upper section longer than the lower section. The support mechanism is located at the junction of the upper and lower tower sections. The lower tower section houses an equipment compartment and counterweights. The generator is housed within the equipment compartment. The chain-driven wind energy harvesting mechanism is mounted on the inclined tower frame and rotates around the frame under wind influence, driving the generator to generate electricity. This invention utilizes a dual-axis inclined tower chain drive method, ensuring that the rotation direction of the blades on the windward side is aligned with the direction of the resultant force generated by the upward lift and lateral thrust of the wind acting on the blades, thus increasing the wind energy harvesting efficiency of the device.

Description

Technical Field

[0001] This invention relates to the field of wind power generation equipment technology, and in particular to a dual-shaft inclined tower chain-driven wind power generation device. Background Technology

[0002] Wind energy, as a form of solar energy conversion, is abundant in our natural world. As people's desire to use clean energy for production and life gradually increases, wind power generation technology has developed rapidly and has been widely applied.

[0003] Currently, the wind power generation technology in commercial operation is mainly based on three-bladed horizontal-axis tower turbines. However, this technology also has some drawbacks, especially in high-power generating units. These include: the tower top of this type of turbine is located at a high altitude, requiring the tower to have extremely strong wind and vibration resistance; the manufacturing of the tower and the construction of its foundation require a large amount of materials; the turbine blades are too long, placing stringent requirements on the manufacturing process and materials, making them prone to breakage and difficult to transport; the large blade rotation diameter results in low wind energy harvesting efficiency; the blades and generator are installed at the top of the tower, requiring high installation conditions, posing a risk of danger, and making maintenance difficult; the power generation process generates significant noise; and the high-speed rotating blades pose a significant threat to birds. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a dual-axis inclined tower chain-driven wind power generation device to solve the technical problems of existing three-bladed horizontal axis tower wind turbines, which have the following characteristics: the manufacturing of the tower and the construction of the tower foundation require a large amount of materials; the manufacturing process and material requirements for the blades are stringent; the installation conditions are demanding; they are prone to danger; they are not easy to maintain; and the wind energy collection efficiency is low.

[0005] To achieve the above objectives, the present invention provides a dual-axis inclined tower chain-driven wind power generation device, comprising an inclined tower frame, a chain-driven wind energy harvesting mechanism, and a support mechanism. The inclined tower frame is inclined in the downwind direction and includes an upper tower section and a lower tower section, the upper tower section being longer than the lower tower section. The support mechanism is located at the junction of the upper and lower tower sections. The lower tower section contains an equipment compartment and counterweights, and a generator is located within the equipment compartment. The chain-driven wind energy harvesting mechanism is mounted on the inclined tower frame and rotates around the inclined tower frame under the action of wind, driving the generator to generate electricity.

[0006] According to one optional embodiment, a first bracket and a second bracket are symmetrically installed on the left and right sides of the junction of the upper tower and the lower tower, respectively. The bottom of the first bracket is hinged to a first hinge support, and the bottom of the second bracket is hinged to a second hinge support. The first hinge support and the second hinge support are simultaneously connected to the support mechanism.

[0007] According to an optional embodiment, the system further includes a portal frame that is horizontally installed on the front side of the inclined tower frame. The two side pillars of the portal frame are perpendicular to the front side of the inclined tower frame. The lower ends of the two side pillars are fixedly installed on the first support and the second support, respectively. The portal frame is connected and fixed to the inclined tower frame by cables.

[0008] According to one optional embodiment, the support mechanism includes a crossbeam, a vertical shaft, a base, and a support frame. The bottom of the support frame is fixed to the ground, the base is fixedly installed on the top of the support frame, the vertical shaft is installed on the base, the center position of the crossbeam is installed on the base via the vertical shaft, and the crossbeam rotates around the vertical shaft.

[0009] According to one optional embodiment, the chain-driven wind energy harvesting mechanism includes a main drive shaft, a secondary drive shaft, a main sprocket, a secondary sprocket, a drive chain, several blade assemblies, a large gear, and a small gear. The main drive shaft is horizontally mounted laterally along the width direction of the inclined tower frame on the lower tower section and passes through the equipment compartment. The main sprockets are rotatably mounted in pairs at both ends of the main drive shaft. The secondary drive shaft is horizontally mounted laterally along the width direction of the inclined tower frame on the upper tower section. The secondary sprockets are rotatably mounted in pairs at both ends of the secondary drive shaft. The diameter of the main sprocket is larger than the thickness of the inclined tower frame at its location, and the diameter of the secondary sprocket is... The diameter is greater than the thickness of the inclined tower frame at the location. The transmission chain corresponds to the main sprocket and the auxiliary sprocket, and is simultaneously driven on the main sprocket and the auxiliary sprocket. Several blade assemblies are respectively installed laterally between the transmission chain and are evenly distributed along the transmission direction. The force received by the transmission chain from the blade assembly on the windward side is consistent with the direction in which the inclined tower frame tilts towards the downwind direction. The large gear is fixedly installed on the main drive shaft, and the small gear is fixedly installed on the central shaft of the generator. The large gear and the small gear are meshed and connected. Both the large gear and the small gear are placed inside the equipment compartment.

[0010] According to one optional embodiment, the blade assembly includes blades, a connecting shaft, a positioning rod, and rollers. The blades are laterally mounted between the transmission chains and are evenly distributed along the transmission direction. The connecting shaft, the positioning rod, and the rollers are symmetrically arranged at both ends of the blades. The connecting shaft is arranged laterally, with one end fixedly connected to the middle of the blade end face connecting plate, and the other end passing through the chain connecting hole and then through the central shaft hole of the roller and fixed. The rollers can rotate on the connecting shaft. One end of the positioning rod is hinged to the upper front end of the blade end face connecting plate, and the other end is hinged to the chain connecting hole adjacent to the front side using a pin.

[0011] According to one optional embodiment, the chain-driven wind energy harvesting mechanism further includes a track, which consists of two circular tracks, left and right, symmetrically arranged on the outer side of the drive chain. The track's installation trajectory corresponds to the drive chain's operating trajectory. The track's cross-section is a C-shaped groove, with the C-shaped groove opening towards the drive chain. The top and bottom of the track are arc shapes corresponding to the drive chain's operating trajectory. The upper and lower arc tracks are connected by a straight track, forming a vertical circular track. The track is fixedly connected to multiple track supports, which are evenly distributed on the left and right sides of the inclined tower frame. The rollers roll within the C-shaped grooves of the track.

[0012] According to one optional embodiment, it further includes a U-shaped frame, which is fitted onto the lower part of the inclined tower frame with its opening facing upward, and the inclined angle is the same as that of the inclined tower frame. The upper ends of the two side supports of the U-shaped frame are respectively fixedly installed at the lower ends of the first support and the second support.

[0013] According to one optional embodiment, the system further includes a pair of support legs, one end of which is symmetrically fixed to the rear side of the brackets on both sides of the U-shaped frame, and the other end of which is supported on the corresponding part of the upper front of the crossbeam.

[0014] The dual-axis inclined tower chain-driven wind power generation device provided by this invention has the following technical advantages:

[0015] (1) Compared with the commonly used three-blade horizontal shaft tower wind power generation device in the prior art, the blade rotation direction in the prior art is perpendicular to the wind direction. The blades only transmit the lift generated by the interaction with the wind to the generator, while the lateral thrust generated by the wind on the blades acts on the tower supporting the rotation of the blades, resulting in low wind energy conversion efficiency. In contrast, the present invention uses a dual-axis inclined tower chain drive method to make the rotation direction of the windward blades consistent with the direction of the resultant force generated by the upward lift and lateral thrust generated by the wind on the blades, thereby increasing the wind energy collection efficiency of the device.

[0016] (2) Compared with the commonly used three-blade horizontal axis wind power generation device in the prior art, the blade rotation direction of the three-blade horizontal axis wind power generation device is perpendicular to the wind direction. The blades only transmit the torque generated by the interaction with the wind to the generator, while the lateral thrust generated by the wind on the blades is applied to the top of the tower supporting the blades at high altitude, which increases the difficulty of the tower resisting the wind. When encountering super strong gusts, the tower is easy to tilt or break. In contrast, the present invention adopts a tilted tower structure, with the base and bottom support located at the lower rear of the device. The distance between the base and the ground is relatively close, resulting in stronger wind resistance. When the device encounters super strong gusts, the tilted tower frame can rotate around the vertical axis under the support of the crossbeam and hinge support, automatically adjusting to the downwind direction. The upper part of the tilted tower frame will adjust the tilt angle to the downwind direction according to the wind force, so that the wind force on the windward side of the device is kept within the safe operating range, avoiding the bottom support from tilting or breaking, and enhancing the overall wind resistance of the device.

[0017] (3) Compared with the commonly used three-blade horizontal axis wind power generation device in the prior art, the three-blade horizontal axis wind power generation device requires special transportation tools for the transportation of blades and towers, and has higher requirements for roads; while the present invention contains multiple blades whose length does not exceed the width of the inclined tower frame. After the blades are separated from the transmission chain, they can be transported in a concentrated manner using ordinary transportation tools. All other components can be designed as detachable structures without affecting the overall performance of the device, and can be transported using ordinary transportation tools.

[0018] (4) Compared with the commonly used three-bladed horizontal axis wind power generation device in the prior art, the three-bladed horizontal axis wind power generation device increases the diameter of the tower, the thickness of the tower wall, and the design size of the foundation in order to cope with the strong gusts generated by extreme weather. However, when the device encounters strong gusts, the bottom of the first support is hinged to the first hinge support, and the bottom of the second support is hinged to the second hinge support. Therefore, the inclined tower frame will automatically adjust the tilt angle in the downwind direction according to the wind force, so as to avoid the overall collapse of the device. This makes the safety factor of the device not dependent on increasing the design size and material quantity of the device.

[0019] (5) Compared with the commonly used three-bladed horizontal axis tower wind power generation device in the prior art, the blades of the three-bladed horizontal axis tower wind power generation device not only need to withstand the driving force of the wind, but also need to meet the requirements of bearing the weight of the blade itself, the centrifugal force and torque brought about by high-speed rotation, and improving the vibration resistance, etc., which requires a lot of materials to be consumed in the manufacturing of the blades to increase the structural strength of the blades; while the blades in this invention mainly bear the driving force of the wind and a small amount of centrifugal force, and other forces have little impact on the blade structure, so it is not necessary to consume too much material to increase the structural strength of the blades.

[0020] (6) Compared with the commonly used three-blade horizontal shaft tower wind power generation device in the prior art, the three-blade horizontal shaft tower wind power generation device generates a lot of noise when the high-speed rotating blade tips interact with the wind during operation, and the rotation speed of the main drive shaft is very slow. It is necessary to increase the speed increase ratio of the speed increase gear to meet the normal rotation speed of the generator, thereby increasing the noise generated by the speed increase gearbox. In contrast, the blades in this invention are parallel to the main drive shaft and the auxiliary drive shaft, the linear velocity of the blades is low, and the trajectory of the blades when collecting wind energy is inclined to the downwind direction, so that the noise generated by the interaction between the blades and the wind is smaller. At the same time, the blades are parallel to the main drive shaft and the auxiliary drive shaft and the radius of rotation around the shaft is small, so that the rotation speed of the main drive shaft is higher. It is only necessary to use a lower speed increase ratio to drive the generator to operate normally, so the noise generated when the speed increase gear operates is also smaller.

[0021] (7) Compared with the commonly used three-bladed horizontal-axis wind turbine generator in the prior art, the blades of the three-bladed horizontal-axis wind turbine generator rotate perpendicular to the wind direction, occupying a large space area. When birds fly by, it is difficult to judge the position of the high-speed rotating blades and avoid them, making birds easily injured by the impact of the blades. In contrast, the blades of this invention rotate around the inclined tower frame, and the length of the blades does not exceed the width of the windward side of the inclined tower frame. The direction of movement of the windward blades is consistent with the tilting direction of the inclined tower frame and rotates at a downwind angle, making it easy for passing birds to judge and avoid them, thus reducing harm to birds.

[0022] (8) Compared with the commonly used three-bladed horizontal-axis wind power generation device in the prior art, the blades, speed increaser, and generator of the three-bladed horizontal-axis wind power generation device are all located at high altitudes, which poses a high risk for installation and maintenance, and requires extremely high mechanical performance for the installation equipment. In contrast, the generator and speed increaser mechanism of this invention are located in the equipment compartment at the bottom of the inclined tower frame, close to the ground, which facilitates installation and maintenance. The inclined tower frame can be adjusted to be parallel to the ground, reducing the height of the upper device to be close to the ground, which facilitates installation and maintenance, improves the safety of the device during installation and maintenance, and reduces the performance requirements of the installation machinery. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a side view of a dual-axis inclined tower chain-driven wind power generation device according to an embodiment of the present invention;

[0025] Figure 2 yes Figure 1 A schematic diagram of the AA direction of a dual-axis inclined tower chain-driven wind power generation device;

[0026] Figure 3 yes Figure 2 A schematic diagram of the structure of a dual-axis inclined tower chain-driven wind power generation device in the BB direction;

[0027] Figure 4 yes Figure 2 A schematic diagram of the CC direction of a medium-sized dual-axis inclined tower chain-driven wind power generation device;

[0028] Figure 5 yes Figure 2 A schematic diagram of the DD direction of a medium-sized dual-axis inclined tower chain-driven wind power generation device;

[0029] Figure 6 yes Figure 2 A schematic diagram of the EE direction of a dual-axis inclined tower chain-driven wind power generation device;

[0030] Figure 7 yes Figure 1 A partial structural schematic diagram of a medium-sized dual-axis inclined tower chain-driven wind power generation device;

[0031] Figure 8 yes Figure 7A schematic diagram of the structure of a dual-axis inclined tower chain-driven wind power generation device in the F direction.

[0032] in, Figures 1-8 :

[0033] 1. Inclined tower frame; 2. Chain-driven wind energy harvesting mechanism; 3. First hinge support; 4. Second hinge support; 5. Horizontal beam; 6. Vertical shaft; 7. Base; 8. Support frame; 9. Counterweight; 10. Equipment compartment; 11. Generator; 12. Main drive shaft; 13. Secondary drive shaft; 14. Secondary sprocket; 15. Secondary sprocket; 16. Main sprocket; 17. Main sprocket; 18. Drive chain; 19. Drive chain; 20. Blade; 21. Connecting shaft; 22. Positioning rod; 23. Roller; 24. Track; 25. Track support; 26. Large gear; 27. Small gear; 28. U-shaped frame; 29. ​​Support leg; 30. Portal frame; 31. Guide plate; 32. Wind baffle; 33. Portal support; 34. Cable; 35. Cable; 36. Wind guide plate.

[0034] 100. First support; 101. Second support; 102. Third support; 103. Fourth support. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0036] The following is a specific example. Figure 1-8 The technical solution of the present invention will be described in detail.

[0037] One embodiment of the present invention provides a dual-axis inclined tower chain-driven wind power generation device, see [link to relevant documentation]. Figures 1-8 As shown, it includes a leaning tower frame 1, a support mechanism, and a chain-driven wind energy harvesting mechanism 2.

[0038] See Figure 1 and Figure 2 As shown, the inclined tower frame 1 is a tall tower-shaped frame structure that is symmetrical from left to right and front to back, with the front and rear sides being rectangular. The upper part is inclined to the rear. The inclined tower frame 1 is divided into two parts: the upper tower and the lower tower. The upper tower is longer than the lower tower.

[0039] The first support 100 and the second support 101 are symmetrically installed on the left and right sides of the joint between the upper and lower tower sections, respectively. The bottom of the first support 100 is hinged to the first hinge support 3, and the bottom of the second support 101 is hinged to the second hinge support 4. The first hinge support 3 and the second hinge support 4 are simultaneously connected to the support mechanism.

[0040] For supporting institutions, see [link / reference] Figure 1 and Figure 3 As shown, it includes a crossbeam 5, a vertical shaft 6, a base 7, and a support frame 8. The bottom of the support frame 8 is fixed to the ground, the base 7 is fixedly installed on the top of the support frame 8, the vertical shaft 6 is installed on the base 7, and the center position of the crossbeam 5 is installed on the base 7 through the vertical shaft 6. The crossbeam 5 rotates around the vertical shaft 6.

[0041] It is worth mentioning that the first hinge support 3 and the second hinge support 4 are of the same specifications and have concentric pins. The inclined tower frame 1 can reciprocate and rotate under the support of the first hinge support 3 and the second hinge support 4. The bottoms of the first hinge support 3 and the second hinge support 4 are symmetrically fixed on the upper planes at both ends of the crossbeam 5. The crossbeam 5 is horizontally arranged below the rear of the inclined tower frame 1, and its length is not less than the sum of the left and right widths of the inclined tower frame 1, the first support 100 and the second support 101. Sufficient gaps are maintained between the rear side of the inclined tower frame 1 and the upper plane of the crossbeam 5, as well as between the first hinge support 3 and the second hinge support 4, to provide sufficient installation and operating space for the chain-driven wind energy harvesting mechanism 2.

[0042] like Figure 1 As shown, the center of the crossbeam 5 is mounted on the base 7 via the vertical shaft 6. The crossbeam 5 can rotate horizontally back and forth around the vertical shaft 6. The bottom of the base 7 is fixedly mounted on the top of the support frame 8. The bottom of the support frame 8 is fixed to the ground. The height of the support frame 8 must ensure that there is a sufficient safe distance between the equipment installed at the lower end of the inclined tower frame 1 and the ground. The lower section of the tower is equipped with a counterweight 9 and an equipment compartment 10. The generator 11 is installed in the equipment compartment 10. The chain-driven wind energy harvesting mechanism 2 drives the generator 11 to generate electricity.

[0043] Chain-driven wind energy harvesting mechanism 2, such as Figure 1 and Figure 2As shown, it includes a main drive shaft 12, a secondary drive shaft 13, main sprockets 16 and 17, secondary sprockets 14 and 15, drive chains 18 and 19, several blade assemblies, a large gear 26, and a small gear 27. The main drive shaft 12 is horizontally mounted laterally along the width direction of the inclined tower frame 1 on the lower section of the tower and passes through the equipment compartment 10. The main sprockets 16 and 17 are rotatably mounted in pairs at both ends of the main drive shaft 12. The secondary drive shaft 13 is horizontally mounted laterally along the width direction of the inclined tower frame 1 on the upper section of the tower. The secondary sprockets 14 and 15 are rotatably mounted in pairs at both ends of the secondary drive shaft 13. The drive chains 18 and 19 are connected to the main sprockets 16 and 17 and the secondary sprockets 14 and 15. The main sprockets 16 and 17 and the secondary sprockets 14 and 15 are corresponding to each other and are simultaneously driven on the main sprockets 16 and 17 and the secondary sprockets 14 and 15. Several blade assemblies are installed laterally between the transmission chains 18 and 19 and are evenly distributed along the transmission direction. The force received by the transmission chains 18 and 19 from the blade assemblies is consistent with the direction of the inclined tower frame 1 tilting in the downwind direction. The large gear 26 is fixedly installed on the main drive shaft 12 and is concentric with the main drive shaft 12. The large gear 26 is located between the main sprockets 16 and 17. The small gear 27 is fixedly installed on the central shaft of the generator 11. The large gear 26 and the small gear 27 are meshed and connected. Both the large gear 26 and the small gear 27 are placed in the equipment compartment 10.

[0044] Specifically, the main drive shaft 12 is horizontally installed on the front and rear symmetrical center line at the lower end of the inclined tower frame 1 and passes through the equipment compartment 10. The two ends of the main drive shaft 12 extend symmetrically from the left and right sides of the inclined tower frame 1, respectively.

[0045] It should be noted that the main sprockets 16 and 17 are of equal size and have the same specifications. They are symmetrically fixed at both ends of the main drive shaft 12 and are concentric with the main drive shaft 12. The main sprockets 16 and 17 can drive the main drive shaft 12 to rotate around the axis simultaneously. The auxiliary drive shaft 13 is horizontally installed at the top of the upper section of the tower and is located on the front and rear symmetrical center line. The two ends of the auxiliary drive shaft 13 extend symmetrically from the left and right sides of the inclined tower frame 1.

[0046] Secondary sprockets 14 and 15 are of equal size and have the same specifications. They are symmetrically fixed at both ends of the secondary drive shaft 13 and are concentric with the secondary drive shaft 13. Secondary sprockets 14 and 15 can drive the secondary drive shaft 13 to rotate around its axis simultaneously. Drive chains 18 and 19 have the same specifications and are of equal length.

[0047] Drive chain 18 is mounted on the secondary sprocket 14 and main sprocket 16 on the left side of the inclined tower frame 1. Drive chain 18, secondary sprocket 14, and main sprocket 16 operate in the same vertical plane and are tightly fitted together. Drive chain 19 is mounted on the secondary sprocket 15 and main sprocket 17 on the right side of the inclined tower frame 1. Drive chain 19, secondary sprocket 15, and main sprocket 17 operate in the same vertical plane and are tightly fitted together. The direction in which the inclined tower frame 1 tilts from the top towards the downwind direction is consistent with the direction of the force received by drive chains 18 and 19 from the blades 20. The front side of the blades 20 is set to the optimal angle of attack.

[0048] Blade assemblies, such as Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, it includes blades 20, connecting shafts 21, positioning rods 22, and rollers 23. The blades 20 are horizontally installed between the transmission chains 18 and 19 and are evenly distributed along the transmission direction. The connecting shafts 21, positioning rods 22, and rollers 23 are symmetrically arranged at both ends of the blades 20. The connecting shafts 21 are arranged horizontally, with one end fixedly connected to the middle of the connecting plate on the end face of the blades 20, and the other end passing through the chain connecting hole and then through the central shaft hole of the rollers 23 and fixed. The rollers 23 can rotate on the connecting shafts 21. One end of the positioning rod 22 is hinged to the upper front end of the connecting plate on the end face of the blades 20, and the other end is hinged to the chain connecting hole on the front side using a pin.

[0049] Specifically, in this embodiment, the blade 20 is preferably a long, arc-shaped airfoil, such as... Figure 8 As shown, connecting plates are provided on both end faces. Multiple blades 20 are installed laterally between the transmission chains 18 and 19 and are evenly distributed along the transmission direction. A connecting shaft 21, a positioning rod 22 and a roller 23 are symmetrically arranged at both ends of the blades 20. The connecting shaft 21 is arranged laterally, with one end fixedly connected to the middle of the connecting plate on the end face of the blade 20. The other end passes through the chain connecting hole and then through the central shaft hole of the roller 23 and is fixed. The roller 23 can rotate on the connecting shaft 21. One end of the positioning rod 22 is hinged to the upper front end of the connecting plate on the end face of the blade 20, and the other end is hinged to the chain connecting hole on the front side using a pin.

[0050] The rollers can roll within the circular track 24 as the transmission chain operates. Their function is to support the transmission chains 18, 19 and the blades 20 to run along the track and reduce the friction with the track.

[0051] like Figure 2As shown, the chain-driven wind energy harvesting mechanism 2 also includes a track 24, which consists of two identical circular tracks 24 arranged symmetrically on the outside of the transmission chains 18 and 19. The track 24 is erected along the same trajectory as the transmission chains 18 and 19. The cross-section of the track 24 is a C-shaped groove, with the opening of the C-shaped groove facing the transmission chains 18 and 19 and being symmetrical. The top and bottom of the track 24 are arcs corresponding to the trajectory of the transmission chains 18 and 19. The upper arc track 24 and the lower arc track 24 are connected by a straight track 24 to form a vertical circular track 24. The track 24 is fixedly connected to multiple track supports 25, which are evenly distributed on the left and right sides of the inclined tower frame 1. The rollers 23 operate within the C-shaped grooves of the track 24.

[0052] The function of track 24 is to make the blade 20 and the transmission chains 18 and 19 run along the designed trajectory, so as to prevent the transmission chains 18 and 19 from sagging and swaying between the main sprocket and the auxiliary sprocket due to gravity and wind force, and to prevent the transmission chains 18 and 19 from derailing.

[0053] In addition, the diameters of the main sprockets 16 and 17 are greater than the thickness of the front and rear sides of the inclined tower frame 1 at their respective locations, so that sufficient operating clearance is maintained between the blade 20 and the front and rear sides of the inclined tower frame 1. The diameters of the secondary sprockets 14 and 15 are also greater than the thickness of the front and rear sides of the inclined tower frame 1 at their respective locations, so that sufficient operating clearance is maintained between the blade 20 and the inclined tower frame 1.

[0054] The counterweight 9 is installed inside the lower tower section and is located in a position that does not affect the installation and safe operation of other equipment. Its main function is to ensure that the tilting tower frame 1 maintains a constant backward tilt angle under wind speeds that do not exceed the safe operating range of the device. The upper tower section of the tilting tower frame 1 is longer than the lower tower section. The extra length is designed to ensure that when the device is subjected to extremely strong gusts exceeding the safe operating range, the tilting tower frame 1 will automatically adjust its tilt angle backward, reducing the wind force intensity borne by the front blades 20 and keeping the device within the safe operating range.

[0055] like Figure 1 As shown, it also includes a U-shaped frame, which is fitted onto the lower part of the inclined tower frame 1 with its opening facing upward, and the inclination angle is the same as that of the inclined tower frame 1. The upper ends of the two side support frames 8 of the U-shaped frame are respectively fixedly installed at the lower ends of the first bracket 100 and the second bracket 101.

[0056] Specifically, the U-shaped frame 28 is horizontally fitted onto the lower part of the inclined tower frame 1. The two side support frames 8 of the U-shaped frame 28 are symmetrical and parallel. The opening of the U-shaped frame 28 faces upward and the tilt angle is the same as that of the inclined tower frame 1. The left, right and front and back symmetrical center lines coincide with the center line of the inclined tower frame 1. The upper ends of the two side support frames 8 of the U-shaped frame 28 are fixedly installed at the lower ends of the first bracket 100 and the second bracket 101, respectively. The inner side of the two side support frames 8 of the U-shaped frame 28 is connected to the outer side of the lower arc part of the track 24. The bottom crossbeam of the U-shaped frame 28 is located below the main sprockets 16 and 17 and maintains a safe clearance with the running trajectory of the lower part of the blade 20.

[0057] like Figure 1 As shown, it also includes a pair of support legs 29. One end of the support leg 29 is symmetrically fixed to the rear side of the support frame 8 on both sides of the U-shaped frame, and the other end of the support leg 29 is supported on the corresponding part of the upper front of the crossbeam 5.

[0058] Specifically, one end of a pair of support legs 29 is symmetrically fixed to the rear side of the two side support frames 8 of the U-shaped frame 28, and the other end of the support legs 29 is supported on the corresponding part of the upper front of the crossbeam 5. The support legs 29 keep a sufficient distance between the rear side of the inclined tower frame 1 and the upper side of the crossbeam 5 to provide operating space for the blades 20.

[0059] To improve work efficiency, a wind deflector 32 is also included, such as... Figure 1 As shown, the wind deflector 32 is horizontally fixed on the crossbeam at the bottom of the U-shaped frame 28. The length of the wind deflector 32 is not less than the length of the blade 20, and the upper end is not higher than the center height of the main drive shaft 12. The function of the wind deflector 32 is to prevent the blade 20 from being subjected to the reverse force of the wind when it rotates forward and upward under the main sprockets 16 and 17, so as to improve working efficiency.

[0060] In addition, such as Figure 1 and Figure 2As shown, the upper tower section also has a third bracket 102 and a fourth bracket 103 horizontally and symmetrically fixedly installed on the left and right sides. The third bracket 102 and the fourth bracket 103 are located near the lower side of the secondary sprockets 14 and 15. The portal frame 30 is horizontally fitted onto the upper part of the inclined tower frame 1. The two side support frames 8 are symmetrical and parallel, with their openings facing downwards and their front and rear tilt angles being the same as those of the inclined tower frame 1. The left, right, front, and rear symmetrical center lines coincide with the center line of the inclined tower frame 1. The lower ends of the two side support frames 8 of the portal frame 30 are respectively fixedly installed on the upper ends of the third bracket 102 and the fourth bracket 103. The inner sides of the two side support frames 8 of the portal frame 30 are connected to the outer side of the upper arc part of the track 24. The upper crossbeam of the portal frame 30 is located on the upper side of the secondary sprockets 14 and 15 and maintains a safe operating clearance with the running trajectory of the upper part of the blade 20. The outer sides of the two side support frames 8 of the portal frame 30 are equipped with guide plates 31 that are consistent with the tilt direction of the inclined tower frame 1. The guide plates 31 are flat plates and are also arranged vertically on both sides of the upper section of the inclined tower frame 1. They are fixedly installed on the outer side of the track 24 and the track support 25. The area and shape of the guide plates 31 are determined according to the design.

[0061] The portal frame 30 of this invention is used to reinforce the top arc-shaped track and provide an installation carrier for auxiliary facilities such as guide plates, lightning arresters, and safety indicator lights. The guide plate 31 increases the wind resistance on both sides of the upper section of the inclined tower frame, thereby improving the device's automatic wind resistance capability.

[0062] And such as Figure 1 and Figure 2 As shown, it also includes a portal frame 33 that is horizontally installed on the front side of the inclined tower frame 1. The two side pillars of the portal frame 33 are perpendicular to the front side of the inclined tower frame 1. The lower ends of the two side pillars are fixedly installed on the first support 100 and the second support 101, respectively. The portal frame 33 is connected and fixed to the inclined tower frame 1 by cables 34 and 35.

[0063] Specifically, the portal frame 33 is horizontally installed on the front side of the inclined tower frame 1. The two side pillars of the portal frame 33 are perpendicular to the front side of the inclined tower frame 1, and the lower ends of the two side pillars are fixedly installed on the first support 100 and the second support 101, respectively. One end of a pair of cables 34 is connected to the front side of the third support 102 and the fourth support 103, and the other end is connected to the left and right ends of the upper beam of the portal frame 33, respectively. One end of another pair of cables 35 is connected to the left and right ends of the portal frame 33, and the other end is connected to the front side of the left and right support frames 8 of the U-shaped frame 28, respectively. The cables 34 and 35 on the same side are in the same plane.

[0064] To improve wind energy harvesting efficiency, such as Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, it also includes multiple wind guide plates 36. The wind guide plates 36 are flat plates that are evenly laid between the front plane of the upper tower and the blades 20, and are fixed on the front plane of the upper tower. The area and shape of the wind guide plates 36 are determined by the design and the size is adjustable. They are mainly used to enhance the force of the wind on the front blades 20 of the inclined tower frame 1 and to block the reaction force of the wind on the rear blades 20 of the inclined tower frame 1 during rotation, thereby improving the wind energy collection efficiency.

[0065] The specific work process is as follows: Figure 3-8 As shown, the chain-driven wind energy harvesting mechanism 2 rotates around the inclined tower frame 1 under the action of wind. The secondary sprockets 14 and 15 and the secondary drive shaft 13 idle under the action of the drive chains 18 and 19 and the blades 20. The main sprockets 16 and 17 and the main drive shaft 12 rotate under the action of the drive chains 18 and 19 and the blades 20. The main drive shaft 12 drives the large gear 26 to rotate, the large gear 26 drives the small gear 27 to rotate, and the small gear 27 drives the generator 11 to rotate and generate electricity.

[0066] The upper section of the inclined tower frame 1 is longer than the lower section. The length of the upper section can be increased or decreased according to the design power of the generator 11. The length of the transmission chains 18 and 19 and the number of blades 20 are also increased or decreased accordingly. The lower section is coordinated by increasing or decreasing the weight of the counterweight 9. The upper end of the upper section is tilted to the rear under the support of the rear support leg 29 of the lower section. The tilt angle can be adjusted by increasing or decreasing the length of the support leg 29. The direction pointed to by the upper end of the inclined tower frame 1 is the same as the direction of the force on the transmission chains 18 and 19, so that the resultant force of the wind thrust and lift on the blades 20 is all applied to the main sprockets 16 and 17, and then applied to the generator 11 through the main drive shaft 12, the large gear 26, and the small gear 27 to be converted into electrical energy.

[0067] When the wind force received by the front side of the power generation device exceeds the safe wind force, because the upper section of the inclined tower frame 1 is longer than the lower section of the tower, the inclined tower frame 1 will increase the backward tilt angle of the top with the first hinge support 3 and the second hinge support 4 as the fulcrum, in order to reduce the wind force intensity received by the front side of the inclined tower frame 1 and ensure the normal operation of the whole device.

[0068] When the tilting direction of the inclined tower frame 1 deviates from the wind direction, because the upper section of the inclined tower frame 1 is longer than the lower section, and a guide plate 31 is provided at the top along the tilting direction, the inclined tower frame 1 will automatically turn around under the action of the wind, supported by the first hinge support 3, the second hinge support 4, and the crossbeam 5, with the vertical axis 6 as the center, so that the tilting direction of the inclined tower frame 1 is consistent with the wind direction. The base 7 and support frame 8 installed under the crossbeam 5 through the vertical axis 6 keep the lower end of the inclined tower frame 1 at a safe operating height from the ground.

[0069] When the upper section of the inclined tower frame 1 is too long, the cables 34 and 35 and the portal frame 8 play a reinforcing role.

[0070] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0071] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A dual-axis inclined tower chain-driven wind power generation device, characterized in that, The system includes a tilted tower frame, a chain-driven wind energy harvesting mechanism, and a support mechanism. The tilted tower frame is inclined in the downwind direction and includes an upper tower section and a lower tower section, with the upper tower section being longer than the lower tower section. The support mechanism is located at the junction of the upper and lower tower sections. The lower tower section contains an equipment compartment and counterweights, and a generator is located inside the equipment compartment. The chain-driven wind energy harvesting mechanism is installed on the tilted tower frame and rotates around the tilted tower frame under the action of wind, driving the generator to generate electricity. A first bracket and a second bracket are symmetrically installed on the left and right sides of the junction of the upper tower and the lower tower, respectively. The bottom of the first bracket is hinged to a first hinge support, and the bottom of the second bracket is hinged to a second hinge support. The first hinge support and the second hinge support are simultaneously connected to the support mechanism. The support mechanism includes a crossbeam, a vertical shaft, a base, and a support frame. The bottom of the support frame is fixed to the ground, the base is fixedly installed on the top of the support frame, the vertical shaft is installed on the base, the center position of the crossbeam is installed on the base through the vertical shaft, and the crossbeam rotates around the vertical shaft. The chain-driven wind energy harvesting mechanism includes a main drive shaft, a secondary drive shaft, a main sprocket, a secondary sprocket, a drive chain, several blade assemblies, a large gear, and a small gear. The main drive shaft is horizontally mounted laterally along the width of the inclined tower frame on the lower section of the tower and passes through the equipment compartment. The main sprockets are rotatably mounted in pairs at both ends of the main drive shaft. The secondary drive shaft is horizontally mounted laterally along the width of the inclined tower frame on the upper section of the tower. The secondary sprockets are rotatably mounted in pairs at both ends of the secondary drive shaft. The diameter of the main sprocket is larger than the thickness of the inclined tower frame at its location, and the diameter of the secondary sprocket is larger than the thickness of the inclined tower frame at its location. The thickness of the inclined tower frame is specified. The transmission chain corresponds to the main sprocket and the auxiliary sprocket, and is simultaneously driven on the main sprocket and the auxiliary sprocket. Several blade assemblies are respectively installed laterally between the transmission chain and are evenly distributed along the transmission direction. The force received by the transmission chain from the blade assembly on the windward side is consistent with the direction in which the inclined tower frame tilts towards the downwind direction. The large gear is fixedly installed on the main drive shaft, and the small gear is fixedly installed on the central shaft of the generator. The large gear and the small gear are meshed and connected. Both the large gear and the small gear are placed inside the equipment compartment.

2. The dual-axis inclined tower chain-driven wind power generation device according to claim 1, characterized in that, It also includes a portal frame that is horizontally installed on the front side of the inclined tower frame. The two side pillars of the portal frame are perpendicular to the front side of the inclined tower frame. The lower ends of the two side pillars are fixedly installed on the first support and the second support, respectively. The portal frame is connected and fixed to the inclined tower frame by cables.

3. The dual-axis inclined tower chain-driven wind power generation device according to claim 1, characterized in that, The blade assembly includes blades, a connecting shaft, a positioning rod, and rollers. The blades are horizontally mounted between the transmission chains and are evenly distributed along the transmission direction. The connecting shaft, the positioning rod, and the rollers are symmetrically arranged at both ends of the blades. The connecting shaft is arranged horizontally, with one end fixedly connected to the middle of the connecting plate on the end face of the blade, and the other end passing through the chain connection hole and then through the central shaft hole of the roller and fixed. The roller can rotate on the connecting shaft. One end of the positioning rod is hinged to the upper front end of the connecting plate on the end face of the blade, and the other end is hinged to the chain connection hole adjacent to the front side using a pin.

4. The dual-axis inclined tower chain-driven wind power generation device according to claim 3, characterized in that, The chain-driven wind energy harvesting mechanism also includes a track, which consists of two circular tracks, left and right, symmetrically arranged on the outside of the drive chain. The track's installation trajectory corresponds to the drive chain's operating trajectory. The track's cross-section is a C-shaped groove, with the C-shaped groove opening towards the drive chain. The top and bottom of the track are arc shapes corresponding to the drive chain's operating trajectory. The upper and lower arc tracks are connected by a straight track, forming a vertical circular track. The track is fixedly connected to multiple track supports, which are evenly distributed on the left and right sides of the inclined tower frame. The rollers roll within the C-shaped grooves of the track.

5. The dual-shaft inclined tower chain-driven wind power generation device according to any one of claims 1-4, characterized in that, It also includes a U-shaped frame, which is fitted onto the lower part of the inclined tower frame with its opening facing upwards, and the same tilt angle as the inclined tower frame. The upper ends of the two side supports of the U-shaped frame are respectively fixedly installed at the lower ends of the first support and the second support.

6. The dual-shaft inclined tower chain-driven wind power generation device according to claim 5, characterized in that, It also includes a pair of support legs, one end of which is symmetrically fixed to the rear side of the brackets on both sides of the U-shaped frame, and the other end of which is supported on the corresponding part of the upper front of the crossbeam.

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