A high-power high-altitude wind power generation gear type air-ground energy follow-up conversion system

Abstract

The application relates to the technical field of power generation equipment, in particular to a high-power high-altitude wind power generation gear type air-ground energy follow-up conversion system. The system comprises a follow-up hoist device, a zero-reaction-torque universal transmission device, a coaxial reverse device, a traction-direction-changing speed decoupling device and a generator set; the power output shaft of the follow-up hoist device is connected with the input shaft of the zero-reaction-torque universal transmission device; the output shaft of the zero-reaction-torque universal transmission device is connected with the input shaft of the coaxial reverse device; and the output shaft of the coaxial reverse device is connected with the input shaft of the traction-direction-changing speed decoupling device. The high-power high-altitude wind power generation gear type air-ground energy follow-up conversion system provided by the application improves the integration degree of the land-based high-altitude wind power generation ground system, reduces the land occupation area, reduces the cable transmission link and is favorable for improving the transmission efficiency of the ground system.

Description

Technical Field

[0001] This invention relates to the field of power generation equipment technology, and in particular to a high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system. Background Technology

[0002] The principle of land-based high-altitude wind power generation is to convert high-altitude wind energy into mechanical power on the ground, and finally convert the mechanical energy into electrical energy through a generator. Specifically, high-altitude wind energy capture devices, such as umbrella kites or drag gliders, capture strong winds at high altitudes. The tension is transmitted to the ground via traction ropes, driving a winch to rotate. This winch, through a mechanical transmission system, rotates the generator, producing electrical energy. This electrical energy is then stored in the power grid or through an energy storage system, completing the conversion from high-altitude wind energy to ground-based electrical energy. Currently, ground-based high-altitude wind power generation systems employ universal pulley seats, fixed-shaft winches, and speed-increasing gearboxes to adapt to wind direction and convert the traction motion of the cable into the rotational motion of the generator. However, this configuration suffers from problems such as the dispersed arrangement of various mechanisms, low integration, large footprint, numerous pulleys and cable bends, and low transmission efficiency. To address this issue, we designed a high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system to provide an alternative technical solution. Summary of the Invention

[0003] Therefore, it is necessary to provide a high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system to address the aforementioned technical problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A high-power high-altitude wind power generation gear-type air-to-ground energy follow-up conversion system includes a follow-up winch device, a zero-reaction torque universal transmission device, a coaxial reversing device, a traction-direction speed decoupling device, and a generator set. The power output shaft of the follow-up winch device is connected to the input shaft of the zero-reaction torque universal transmission device. The output shaft of the zero-reaction torque universal transmission device is connected to the input shaft of the coaxial reversing device. The output shaft of the coaxial reversing device is connected to the input shaft of the traction-direction speed decoupling device. The output shaft of the traction-direction speed decoupling device is connected to the generator set.

[0005] As a preferred embodiment of the high-power high-altitude wind power generation gear-type air-to-ground energy follow-up conversion system provided by the present invention, the zero-reaction torque universal transmission device includes a first spur gear, a second spur gear, a first face gear, a second face gear, and a first connecting shaft. One end of the first connecting shaft is connected to the power output shaft of the follow-up winch device. The first spur gear is fixed to one end of the outer side of the first connecting shaft, and the second spur gear is fixed to the other end of the outer side of the first connecting shaft. The bottom of the first spur gear is meshed with the first face gear, and the bottom of the second spur gear is meshed with the second face gear.

[0006] In a preferred embodiment of the high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system provided by the present invention, the second gear is coaxially nested on the outside of the first gear.

[0007] In a preferred embodiment of the high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system provided by the present invention, a second connecting shaft is fixed to the bottom of the first gear and a third connecting shaft is fixed to the bottom of the second gear.

[0008] As a preferred embodiment of the high-power high-altitude wind power generation gear-type air-to-ground energy follow-up conversion system provided by the present invention, the follow-up winch device includes a rotatable base, an arm and a pulley. A first connecting shaft is installed at the bottom of the rotatable base, a winch drum is provided at the top of the base, an arm is rotatably connected to one end of the top of the base, and a pulley is rotatably connected to one end of the arm.

[0009] As a preferred embodiment of the high-power high-altitude wind power generation gear-type air-to-ground energy follow-up conversion system provided by the present invention, the coaxial reversing device includes a third face gear, a fourth face gear, a third spur gear, and a fourth spur gear. The third face gear is fixedly connected to a third connecting shaft, the fourth face gear is fixedly connected to a second connecting shaft, the third spur gear is fixedly connected to a fourth connecting shaft, and the fourth spur gear is fixedly connected to a fifth connecting shaft. The bottom of the third face gear is meshed with the third spur gear, and the top of the fourth face gear is meshed with the fourth spur gear.

[0010] As a preferred embodiment of the high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system provided by the present invention, the traction-direction speed decoupling device includes a first bevel gear, a second bevel gear, a third bevel gear, and a fourth bevel gear. The first bevel gear is fixedly connected to a fourth connecting shaft, the second bevel gear is fixedly connected to a fifth connecting shaft, the first bevel gear is meshed with the third bevel gear and the fourth bevel gear, and the second bevel gear is meshed with the third bevel gear and the fourth bevel gear.

[0011] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0012] Meanwhile, through the above technical solutions, the present invention has at least the following beneficial effects: This invention provides a high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system. By integrating the following-direction conforming mechanism, motion transformation mechanism, and speed change mechanism in the current configuration into a single integrated design, the footprint of the ground system is reduced. By reducing the number of pulleys in the existing configuration and using a high-efficiency gear train to achieve the original functions, the transmission efficiency of the ground system is improved. During system operation, the output speed is not affected by the follow-up speed of the winch, which helps to maintain the generator speed stably and makes motor control simpler. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the follow-up hoisting device of the present invention; Figure 3 This is a schematic diagram of the zero-reaction torque universal transmission device of the present invention; Figure 4 This is a schematic diagram of the coaxial reversing device of the present invention; Figure 5 This is a schematic diagram of the traction-reversal speed decoupling device of the present invention; Figure 6 This is a schematic diagram of the structure of the base of the present invention; Figure 7 This is a schematic diagram of another transmission structure of the present invention that does not include the follow-up winch device and the generator set; Figure 8 This is a schematic diagram of another transmission structure of the present invention that does not include a follow-up winch device and a generator set; Figure 9 This is a schematic diagram illustrating possible structures of the zero-reaction torque universal joint transmission device, coaxial reversing device, and traction-direction speed decoupling device of the present invention. Figure 7 and Figure 8 It is by Figure 9 Two cases formed by combining the listed basic units.

[0015] In the diagram: 1. Follow-up hoisting device; 2. Zero-reaction torque universal transmission device; 3. Coaxial reversing device; 4. Traction-direction speed decoupling device; 5. Generator set; 6. First spur gear; 7. Second spur gear; 8. First face gear; 9. Second face gear; 10. First connecting shaft; 11. Second connecting shaft; 12. Third connecting shaft; 13. Third face gear; 14. Fourth face gear; 15. Third spur gear; 16. Fourth spur gear; 17. Fourth connecting shaft; 18. Fifth connecting shaft; 19. First bevel gear; 20. Second bevel gear; 21. Third bevel gear; 22. Fourth bevel gear; 23. Base; 24. Boom; 25. Pulley. Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0018] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] Reference Figures 1-6 A high-power high-altitude wind power generation gear-type air-to-ground energy follow-up conversion system includes a follow-up winch device 1, a zero-reaction torque universal transmission device 2, a coaxial reversing device 3, a traction-direction speed decoupling device 4, and a generator set 5. The power output shaft of the follow-up winch device 1 is connected to the input shaft of the zero-reaction torque universal transmission device 2, allowing the output shaft of the follow-up winch device 1 to not only rotate on its own axis but also to revolve parallel to the ground around the center of the follow-up winch. The output shaft of the zero-reaction torque universal transmission device 2 is connected to the input shaft of the coaxial reversing device 3, the output shaft of the coaxial reversing device 3 is connected to the input shaft of the traction-direction speed decoupling device 4, and the output shaft of the traction-direction speed decoupling device 4 is connected to the generator set 5, thereby transmitting the power of the follow-up drum in the device to the generator during use, providing it with the power to generate electrical energy. The zero-reaction torque universal transmission device 2 includes a first spur gear 6, a second spur gear 7, a first face gear 8, a second face gear 9, and a first connecting shaft 10. One end of the first connecting shaft 10 is connected to the follower winch device 1, enabling the follower winch device 1 to drive the first connecting shaft 10 to rotate. The first spur gear 6 is fixed to one end of the outer side of the first connecting shaft 10, and the second spur gear 7 is fixed to the other end of the outer side of the first connecting shaft 10. This allows the output shaft of the follower winch device 1 to rotate, and when it revolves due to changes in wind direction, it drives the first spur gear 6 and the second spur gear 7 mounted on the first connecting shaft to rotate and revolve around the center of their face gears. The bottom of the first spur gear 6 is meshed with the first face gear 9. A first gear 8 and a second spur gear 7 are meshed with a second gear 9 at their bottoms. The second gear 9 is coaxially nested outside the first gear 8, allowing the first gear 8 to rotate inside the second gear 9. This allows the first gear 8 and the second gear 9 to rotate in opposite directions on the same axis. The first spur gear 6 and the second spur gear 7 mesh with the first gear 8 and the second gear 9 respectively, enabling the second gear 9 and the first gear 8 to transmit power normally when rotating on their own axis and revolving around the earth. At the same time, the rotational speed of the first gear 8 and the second gear 9 comes from the rotational speed of the follower winch 1 multiplied by the transmission ratio, and is coupled by the orbital speed of the output shaft of the follower winch 1 relative to the ground.

[0021] When the zero-reaction-torque universal joint drive 2 is in use, the first face gear 8 and the second face gear 9 generate a reaction torque when meshing, causing the first spur gear 6 or the second spur gear 7 to rotate around the center of the face gear. This causes instability in the speed of the face gear during meshing. Therefore, the zero-reaction-torque universal joint drive 2 cancels out the two reaction torques by symmetrically arranging the first face gear 8 and the second face gear 9 with respect to the rotation center, thus ensuring a stable output speed for the device.

[0022] refer to Figure 6 The follow-up winch device 1 includes a rotatable base 23, an arm 24, and a pulley 25. A first connecting shaft 10 is installed at the bottom of the base 23, and a winch drum is provided on the inner side of the top of the base 23. The winch drum converts the linear motion of the rope pulled by the wind into its own rotational motion and outputs it to the first connecting shaft 10. One end of the top of the base 23 is rotatably connected to the arm 24, and one end of the arm 24 is rotatably connected to the pulley 25. The pulley 25 contacts the traction rope on the winch drum, so that the rotation of the base 23 does not require active control. Instead, the change in wind direction drives the traction rope, which causes the follow-up arm 24 to be stressed. The follow-up arm 24 drives the base 23 to achieve mechanical adaptive rotation. When the base 23 rotates relative to the ground, it drives the winch drum to rotate relative to the ground, so that the first connecting shaft 10 also rotates when the base 23 rotates relative to the ground. The bottom of the first gear 8 is fixed with a second connecting shaft 11, and the bottom of the second gear 9 is fixed with a third connecting shaft 12. The third connecting shaft 12 is nested outside the second connecting shaft 11, so that the third connecting shaft 12 can rotate in the opposite direction outside the second connecting shaft 11. The coaxial reversing device 3 includes a third face gear 13, a fourth face gear 14, a third spur gear 15, and a fourth spur gear 16. The third face gear 13 is connected to the third connecting shaft 12, and the fourth face gear 14 is connected to the second connecting shaft 11. The third face gear 13 is meshed with the third spur gear 15 at its bottom, and the fourth face gear 14 is meshed with the fourth spur gear 16 at its top. The third spur gear 15 is fixedly connected to the fourth connecting shaft 17, and the fourth spur gear 16 is fixedly connected to the fifth connecting shaft 18, with the fifth connecting shaft 18 nested inside the fourth connecting shaft 17. The coaxial reversing device converts the opposite rotations between the second connecting shaft 11 and the third connecting shaft 12 into the same-direction rotations between the fourth connecting shaft 17 and the fifth connecting shaft 18 by the meshing of the two face gear pairs. The traction-reversal speed decoupling device 4 includes a first bevel gear 19, a second bevel gear 20, a third bevel gear 21, and a fourth bevel gear 22. The first bevel gear 19 is fixedly connected to the fourth connecting shaft 17, and the second bevel gear 20 is fixedly connected to the fifth connecting shaft 18. The first bevel gear 19 is meshed with the third bevel gear 21 and the fourth bevel gear 22, and the second bevel gear 20 is meshed with the third bevel gear 21 and the fourth bevel gear 22. This allows the rotation of the first bevel gear 19 and the second bevel gear 20 to drive the third bevel gear 21 and the fourth bevel gear 22 to rotate. The third bevel gear 21 and the fourth bevel gear 22 are mounted on a planetary carrier, and the motion is transmitted to the generator set 5 at the rear end through the rotation of the planetary carrier. Preferably, for the system, the output speed of the zero-reaction torque universal joint drive 2 is affected not only by the traction speed of the traction rope but also by changes in wind direction. Wind direction changes, being uncontrollable and unpredictable, can affect the stability of the power generation system. By using its traction-direction speed decoupling device 4, the traction rope speed and the wind direction change speed are decoupled, retaining only the speed generated by the traction rope speed. This ensures that the speed output to the generator by the device under any wind direction change is only related to the traction rope speed.

[0023] In this embodiment, a high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system includes two working modes when in use; The first configuration is as follows: When the follower hoist 1 rotates only on its own axis, the first spur gear 6 and the second spur gear 7 are normally meshed with the first face gear 8 and the second face gear 9, allowing the first connecting shaft 10 to drive the first face gear 8 and the second face gear 9 to rotate via the first spur gear 6 and the second spur gear 7. The rotational speed of the spur gears is ω1, and the rotational speed of the first face gear 8 and the second face gear 9 is ω2, with opposite directions. After passing through the coaxial reversing device 3, the rotational speeds of the third spur gear 15 and the fourth spur gear 16 are both ω, and in the same direction. Correspondingly, in the traction-reversing speed decoupling device 4, the rotational speeds of the first bevel gear 19 and the second bevel gear 20 are also both ω, and in the same direction. The third bevel gear 21 and the fourth bevel gear 22 only revolve around the central axis and do not rotate on their own axis. The frame outputs the rotational speed ω to the generator set 5. The second scenario is as follows: When the output shaft of the follow-up hoist rotates due to changes in wind direction and revolves around the base 23 relative to the ground, the first spur gear 6 and the second spur gear 7 not only rotate at a speed of ω1, but also revolve around the center of the face gear at a speed of ω when meshing with the first face gear 8 and the second face gear 9. Δ The speed is ω2 + ω as it revolves around the sun. Δ The speed of the second gear 9 is ω2-ω Δ And in the opposite direction. Accordingly, after passing through the coaxial reversing device 3, the rotational speed of the first bevel gear 19 is ω-ω Δ1 The rotational speed of the second bevel gear 20 is ω+ω Δ1 And in the same direction. At this time, both the third bevel gear 21 and the fourth bevel gear 22 move at ω... Δ2 It rotates on its own speed and revolves around the sun at a speed of ω. Its rotation eliminates speed differences, ensuring the output speed ω of the connected frame remains stable to the generator set 5. Therefore, through its traction-direction speed decoupling device 4, the traction speed of the traction rope and the speed of wind direction change are decoupled, retaining only the speed generated by the traction speed of the traction rope. This ensures that the device is unaffected by wind direction changes and outputs a stable speed to the generator.

[0024] Therefore: when the wind direction remains unchanged, the rotational speeds of the first bevel gear 19 and the second bevel gear are both ω, and the output shaft outputs the rotational speed ω to the generator set 5.

[0025] When the wind direction changes, the rotational speeds of the first bevel gear 19 and the second bevel gear 20 are ω-ω respectively. Δ1 ,ω+ω Δ1 The bevel gears on the left and right sides will move at ω Δ2 The speed of the rotation compensates for the speed difference between the upper and lower parts, and at this time the output shaft also outputs the speed ω to the generator set 5.

[0026] Therefore, the traction-directional speed decoupling device 4 can ensure that the generator's rotational speed is unaffected by changes in wind direction. This simplifies generator operation, reduces the difficulty of generator control, and improves power generation efficiency and quality.

[0027] In other embodiments, the zero-reaction torque universal joint transmission device 2 includes two structural forms, the coaxial reversing device 3 includes three structural forms, and the traction-direction speed decoupling device 4 includes two structural forms. See below for specific structures. Figures 7-9 .

[0028] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system, characterized in that, The device includes a follow-up winch (1), a zero-reaction torque universal joint drive (2), a coaxial reversing device (3), a traction-reversing speed decoupling device (4), and a generator set (5). The power output shaft of the follow-up winch (1) is connected to the input shaft of the zero-reaction torque universal joint drive (2). The output shaft of the zero-reaction torque universal joint drive (2) is connected to the input shaft of the coaxial reversing device (3). The output shaft of the coaxial reversing device (3) is connected to the input shaft of the traction-reversing speed decoupling device (4). The output shaft of the traction-reversing speed decoupling device (4) is connected to the generator set (5). The zero-reaction torque universal transmission device (2) includes a first spur gear (6), a second spur gear (7), a first face gear (8), a second face gear (9), and a first connecting shaft (10). One end of the first connecting shaft (10) is connected to the power output shaft of the follow-up hoisting device (1). The first spur gear (6) is fixedly connected to one end of the outer side of the first connecting shaft (10), and the second spur gear (7) is fixedly connected to the other end of the outer side of the first connecting shaft (10). The bottom of the first spur gear (6) is meshed with the first face gear (8), and the bottom of the second spur gear (7) is meshed with the second face gear (9). The traction-direction speed decoupling device (4) includes a first bevel gear (19), a second bevel gear (20), a third bevel gear (21), and a fourth bevel gear (22). The first bevel gear (19) is fixedly connected to the fourth connecting shaft (17), and the second bevel gear (20) is fixedly connected to the fifth connecting shaft (18). The first bevel gear (19) is meshed with the third bevel gear (21) and the fourth bevel gear (22), and the second bevel gear (20) is meshed with the third bevel gear (21) and the fourth bevel gear (22).

2. The high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system according to claim 1, characterized in that, The second face gear (9) is coaxially nested on the outside of the first face gear (8).

3. The high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system according to claim 1, characterized in that, The bottom of the first face gear (8) is fixedly connected to the second connecting shaft (11), and the bottom of the second face gear (9) is fixedly connected to the third connecting shaft (12).

4. A high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system according to claim 1, characterized in that, The follow-up hoisting device (1) includes a rotatable base (23), an arm (24) and a pulley (25). The bottom of the base (23) is fixed with a first connecting shaft (10). A hoisting drum is provided on the inner side of the top of the base (23). The arm (24) is rotatably connected to one end of the top of the base (23), and the pulley (25) is rotatably connected to one end of the arm (24).

5. A high-power high-altitude wind power generation gear-type air-to-ground energy servo conversion system according to claim 3, characterized in that, The coaxial reversing device (3) includes a third face gear (13), a fourth face gear (14), a third spur gear (15), and a fourth spur gear (16). The third face gear (13) is connected to the third connecting shaft (12), and the fourth face gear (14) is connected to the second connecting shaft (11). The bottom of the third face gear (13) is meshed with the third spur gear (15), and the top of the fourth face gear (14) is meshed with the fourth spur gear (16). The third spur gear (15) is fixedly connected to the fourth connecting shaft (17), and the fourth spur gear (16) is fixedly connected to the fifth connecting shaft (18).

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