Vertical axis wind turbine integrated with auxiliary motor starting

Abstract

The invention discloses a vertical axis wind turbine integrated with auxiliary motor starting, and belongs to the technical field of wind power generation. Comprising a base, a generator is fixedly connected to the right side of the upper surface of the base, an outer disc is fixedly connected to the top end of the output end of the generator, a blade assembly is fixedly connected to the upper surface of the outer disc, a transmission assembly is fixedly connected to the left side of the upper surface of the base, and a fluted disc is fixedly connected to the outer side wall of the outer disc. The transmission assembly is in meshed connection with the fluted disc; through the exquisite design of the transmission assembly, the bottleneck of low-wind-speed starting of traditional equipment is effectively broken through, and the applicability and practicability of the equipment are remarkably improved. In the initial state of the equipment, the electric telescopic rod on the base is in an extending state, the transverse block stops at the initial position of the side groove, the sliding block is located at the tail end of the sliding groove, the auxiliary gear and the fluted disc are kept in a separated state, and interference between components in a non-working state is avoided.

Description

Technical Field

[0001] This invention relates to wind power generation technology, and more particularly to a vertical axis wind turbine generator with integrated auxiliary motor starting. Background Technology

[0002] Traditional vertical axis wind turbines suffer from two core limitations in practical applications, severely restricting their widespread adoption and stable operation. Firstly, the startup phase requires stringent wind conditions, necessitating stable winds of a certain intensity to start the generator. However, many suburban areas, inland plains, and valleys are characterized by low wind speeds and frequent wind fluctuations, leading to frequent startup failures and difficulty in maintaining rotational speed after startup, resulting in prolonged periods of inactivity. Some attempts to improve startup performance by increasing blade size have led to new problems such as bulky equipment and significantly increased manufacturing costs. Furthermore, traditional startup structures lack reasonable transmission switching designs, and even if startup is achieved, interference between the auxiliary structure and the main drive system can easily occur, causing energy loss and reduced power generation efficiency. Secondly, the blade assemblies of traditional equipment are mostly fixed structures, and the wind-receiving area cannot be adjusted according to wind changes. In low-wind-speed environments, the limited wind-receiving area of ​​fixed blades makes it difficult to capture sufficient wind energy, resulting in insufficient generator output power. In high-wind-speed environments, the excessive wind load on the blades can easily cause bending, breakage, and other overload damage, even threatening the overall structural safety of the equipment. Therefore, additional complex braking devices are required, increasing manufacturing costs and maintenance difficulty. A few attempts at adjustable blade devices suffer from cumbersome adjustment mechanisms, relying on manual operation and failing to achieve real-time precise adaptation. Furthermore, the transmission structure is prone to jamming and wear, affecting long-term stable operation and compromising the stability of power output. Summary of the Invention

[0003] Purpose of the Invention: The purpose of this invention is to solve the problems of difficult low-wind-speed start-up and easy component interference and energy loss after start-up in traditional vertical axis wind turbines. By precisely coordinating the electric telescopic rod, auxiliary motor and toothed disc in the transmission assembly, smooth start-up in low-wind-speed environments is achieved, while ensuring smooth switching between the auxiliary structure and the main transmission system, reducing component interference in non-working states, extending the service life of key components, and broadening the application scenarios of the equipment. Another purpose of this invention is to solve the problems of low wind capture efficiency at low wind speeds and easy overload damage at high wind speeds caused by the fixed wind-receiving area of ​​the blades in traditional equipment. Through the synergistic effect of gear transmission, screw transmission and linkage transmission, the wind-receiving area of ​​the blades can be adjusted in real time and accurately to adapt to different wind environments, ensure stable power output of the generator, and reduce equipment maintenance costs and safety risks.

[0004] Technical solution: A vertical axis wind turbine generator with integrated auxiliary motor starting includes a base, a generator fixedly connected to the right side of the upper surface of the base, an outer disk fixedly connected to the top of the output end of the generator, a blade assembly fixedly connected to the upper surface of the outer disk, a transmission assembly fixedly connected to the left side of the upper surface of the base, and a toothed disc fixedly connected to the outer side wall of the outer disk, with the transmission assembly meshing with the toothed disc.

[0005] Furthermore, the blade assembly includes a top column, a central cavity is fixedly connected inside the top column, a turntable is symmetrically rotatably connected inside the central cavity, threaded rods are fixedly connected to opposite sides of the turntable, short columns are fixedly connected to opposite ends of the threaded rods, and opposite ends of the short columns are rotatably connected to the inner wall of the top column.

[0006] Furthermore, the outer side wall of the threaded rod is threadedly connected to a perforated disc, and the outer side wall of the perforated disc is symmetrically fixedly connected to a grooved block. The outer side wall of the top column is symmetrically fixedly connected to multiple telescopic blades.

[0007] Furthermore, each of the telescopic blades has an expansion plate slidably connected inside, and each of the telescopic blades has two grooved blocks 2 symmetrically fixedly connected to opposite ends. A rotating rod is rotatably connected between each adjacent grooved block 1 and grooved block 2.

[0008] Furthermore, a side gear is rotatably connected to the inner wall of the central cavity, and transmission teeth are fixedly connected to the opposite ends of the turntable.

[0009] Furthermore, all the side gears are meshed with the transmission gears, and a motor is fixedly connected to the upper surface of the top column, with the output end of the motor fixedly connected to the short column above.

[0010] Furthermore, the transmission assembly includes a sliding cavity, a side groove is provided inside the sliding cavity, a horizontal block slides inside the side groove, a sliding groove is provided on the upper surface of the sliding cavity, a slider is fixedly connected to the upper surface of the horizontal block, an auxiliary motor is fixedly connected to the upper surface of the slider, an auxiliary gear is fixedly connected to the output end of the auxiliary motor, and the auxiliary gear meshes with the toothed disc.

[0011] Furthermore, an electric telescopic rod is fixedly connected to the outer wall of the sliding cavity, and a crossbar is fixedly connected to the output end of the electric telescopic rod. The crossbar is fixedly connected to the front end of the cross block.

[0012] Furthermore, a dustproof top cover is fixedly connected to the upper surface of the base.

[0013] Beneficial effects: Through the ingenious design of the transmission components, this equipment effectively overcomes the bottleneck of low-wind-speed start-up in traditional equipment, significantly improving its applicability and practicality. In the initial state, the electric telescopic rod on the base is extended, the horizontal block is stopped at the initial position of the side groove, the slider is located at the end of the slide groove, and the auxiliary gear and the toothed disc remain separated to avoid interference between components when not in operation. At the same time, the dustproof top cover tightly covers key components such as the slide cavity and the toothed disc, effectively preventing dust and impurities from entering and extending the service life of the components. When the ambient wind force is insufficient to directly drive the blade assembly to start, the system automatically triggers the auxiliary start-up program. The electric telescopic mast retracts smoothly after being energized, precisely pushing the horizontal block along the side groove via the crossbar. Simultaneously, the slider fixed on the cross block moves directionally along the groove, causing the auxiliary motor to gradually approach the toothed disc until the auxiliary gear fully meshes with it. The electric telescopic mast then stops and locks its current position. The auxiliary motor then starts, and its output torque smoothly drives the outer disc and blade assembly to rotate through gear meshing, providing a stable initial speed for the generator. This enables smooth start-up in low-wind conditions, greatly expanding the equipment's application scenarios. Once the blade assembly reaches its rated operating speed and the current wind force is sufficient to maintain autonomous operation, the system controls the auxiliary motor to stop. The electric telescopic mast reverses its movement, resetting the auxiliary structure. The auxiliary gear completely disengages from the toothed disc, avoiding transmission interference and reducing energy loss. This structure does not require increasing the blade size. While controlling the equipment size and manufacturing cost, it improves the power generation time and energy utilization rate of the equipment through the smooth switching between assisted start-up and autonomous power generation, so that wind energy resources in low wind speed areas can be effectively developed, and its practicality and economy are significantly enhanced. The blade assembly of this equipment, through its adjustable structural design, successfully solves the core pain point of poor adaptability of traditional fixed blades, ensuring stable and efficient operation of the equipment under different wind conditions. In its initial state, the deployable plate is retracted inside the telescopic blade, the perforated disc rests at the initial position of the threaded rod, the rotating rod is folded, the side gear is engaged with the transmission teeth on both sides, and the motor is in standby mode. All components form a stable transmission structure through the central cavity. When it is necessary to adjust the wind-receiving area according to the wind environment, the motor starts, and its output end drives the upper short column to rotate, synchronously driving the connected turntable to rotate. The transmission teeth at the opposite end of this turntable rotate accordingly, and through meshing, drive the side gear to rotate. The side gear further drives the transmission teeth on the lower turntable to rotate in the opposite direction, causing the upper and lower turntables to drive their respective connected threaded rods to rotate synchronously in the opposite direction. Because the threaded rod is threadedly connected to the perforated disc, and the perforated disc is limited by the inner wall of the central cavity and cannot rotate, the rotation of the threaded rod is converted into the axial movement of the perforated disc along the threaded rod, and the grooved block on the outer wall of the perforated disc moves along with it. The first grooved block is rotatably connected to the second grooved block on the telescopic blade via a rotating rod. When the perforated disc moves, it pushes or pulls the rotating rod, causing it to rotate and unfold around the first and second grooved blocks, thereby driving the unfolding plate to slide along the inside of the telescopic blade. In low-wind conditions, the unfolding plate extends from within the telescopic blade, increasing the overall wind-receiving area of ​​the blade and improving wind-catching efficiency. In high-wind conditions, the unfolding plate retracts into the telescopic blade, reducing the wind-receiving area and preventing overload damage to the blade due to excessive wind load, eliminating the need for additional complex braking devices. This adjustment mechanism, through the coordinated operation of gear transmission, threaded transmission, and linkage transmission, achieves real-time and precise adjustment of the blade's wind-receiving area, adapting to different wind environments, ensuring the stability of the generator's output power, reducing equipment maintenance costs, extending equipment lifespan, and significantly improving overall performance and market competitiveness. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of the top column of the present invention; Figure 3 This is a schematic diagram of the blade assembly of the present invention; Figure 4 This is a schematic diagram of the transmission component of the present invention; Figure 5 This is a cross-sectional view of the central cavity of the present invention.

[0015] In the diagram: 1. Base; 2. Generator; 3. Outer disc; 4. Blade assembly; 5. Transmission assembly; 6. Toothed disc; 7. Dustproof top cover; 401. Top column; 402. Central cavity; 403. Turntable; 404. Threaded rod; 405. Short column; 406. Groove block one; 407. Telescopic blade; 408. Unfolding plate; 409. Groove block two; 410. Rotating rod; 411. Side gear; 412. Transmission gear; 413. Motor; 414. Perforated disc; 501. Sliding cavity; 502. Side groove; 503. Horizontal block; 504. Sliding groove; 505. Sliding block; 506. Auxiliary motor; 507. Auxiliary gear; 508. Electric telescopic rod; 509. Crossbar. Detailed Implementation

[0016] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example like Figures 1-5 As shown, a vertical axis wind turbine generator with integrated auxiliary motor starting is provided, including a base 1. A generator 2 is fixedly connected to the right side of the upper surface of the base 1. An outer disk 3 is fixedly connected to the top of the output end of the generator 2. A blade assembly 4 is fixedly connected to the upper surface of the outer disk 3. A transmission assembly 5 is fixedly connected to the left side of the upper surface of the base 1. A toothed disk 6 is fixedly connected to the outer side wall of the outer disk 3. The transmission assembly 5 is meshed with the toothed disk 6. The transmission assembly 5 includes a sliding cavity 501. A side groove 502 is formed inside the sliding cavity 501. A transverse block 503 slides inside the side groove 502. The upper surface of the inner cavity 501 is provided with a groove 504. The upper surface of the cross block 503 is fixedly connected to a slider 505. The upper surface of the slider 505 is fixedly connected to an auxiliary motor 506. The output end of the auxiliary motor 506 is fixedly connected to an auxiliary gear 507. The auxiliary gear 507 meshes with the toothed disc 6. The outer wall of the cavity 501 is fixedly connected to an electric telescopic rod 508. The output end of the electric telescopic rod 508 is fixedly connected to a crossbar 509. The crossbar 509 is fixedly connected to the front end of the cross block 503. The upper surface of the base 1 is fixedly connected to a dustproof top cover 7. In the initial state of the equipment, the electric telescopic rod 508 on the base 1 is in the extended state, the cross block 503 is stopped at the initial position of the side groove 502, the slider 505 is located at the end of the slide groove 504, the auxiliary gear 507 is separated from the toothed disc 6, and the dustproof top cover 7 tightly covers the slide cavity 501, the toothed disc 6 and other key components to effectively prevent dust intrusion. The generator 2 and the auxiliary motor 506 are both in standby mode. When the ambient wind force is insufficient to directly drive the blade assembly 4 to start, the system automatically triggers the auxiliary start program. After the electric telescopic rod 508 is powered on, it retracts smoothly. The cross block 503 is precisely pushed by the cross rod 509 to slide horizontally along the side groove 502, which simultaneously drives the slider 505 fixed on the cross block 503 to move directionally along the slide groove 504, so that the auxiliary motor 506 gradually moves closer to the toothed disc 6 until the auxiliary gear 507 is fully engaged with the toothed disc 6. The electric telescopic rod 508 stops moving and locks the current position. The auxiliary motor 506 then starts, and its output torque is transmitted through the meshing of the auxiliary gear 507 and the toothed disc 6, smoothly driving the outer disc 3 and the blade assembly 4 fixed above it to rotate slowly, providing a stable initial speed for the generator 2. As the blade assembly 4 continues to rotate, the wind torque it receives gradually increases, and the speed continuously increases. When the system detects that the generator 2 speed has reached the rated operating speed and the current wind force is sufficient to maintain the autonomous operation of the blade assembly 4, it immediately sends a signal to control the auxiliary motor 506 to stop. At the same time, the electric telescopic rod 508 retracts in the opposite direction, pulling the crossbar 509 to reset the cross block 503, the slider 505 and the auxiliary motor 506. The auxiliary gear 507 and the toothed disc 6 are completely separated. After that, the generator 2 is driven entirely by the wind energy captured by the blade assembly 4 and enters a stable normal power generation state. Throughout the process, the various components of the transmission assembly 5 work together to ensure smooth start-up and switching.

[0018] In this embodiment, the blade assembly 4 includes a top post 401, a central cavity 402 fixedly connected inside the top post 401, a turntable 403 symmetrically rotatably connected inside the central cavity 402, threaded rods 404 fixedly connected to opposite sides of the turntable 403, short posts 405 fixedly connected to opposite ends of the threaded rods 404, and opposite ends of the short posts 405 rotatably connected to the inner sidewall of the top post 401. Perforated discs 414 are threadedly connected to the outer sidewalls of the threaded rods 404, and recessed blocks 406 are symmetrically fixedly connected to the outer sidewalls of the perforated discs 414. Multiple extensions are symmetrically fixedly connected to the outer sidewalls of the top post 401. The telescopic blade 407 has an expansion plate 408 slidably connected inside it. Two groove blocks 409 are symmetrically fixedly connected to the opposite ends of the telescopic blade 407. A rotating rod 410 is rotatably connected between adjacent groove blocks 406 and groove blocks 409. A side gear 411 is rotatably connected to the inner wall of the central cavity 402. Transmission gears 412 are fixedly connected to the opposite ends of the turntable 403. The side gears 411 are meshed with the transmission gears 412. A motor 413 is fixedly connected to the upper surface of the top column 401. The output end of the motor 413 is fixedly connected to the upper short column 405. In the initial state of the blade assembly 4, the deployable plate 408 is retracted inside the telescopic blade 407, the perforated disc 414 is positioned at the initial position of the threaded rod 404, the rotating rod 410 is folded, the side gear 411 is engaged with the transmission gears 412 on both sides, and the motor 413 is in standby mode. All components form a stable transmission structure through the central cavity 402. When it is necessary to adjust the wind-receiving area of ​​the blades to adapt to different wind conditions, the motor 413 starts, and its output drives the upper short column 405 to rotate. The upper short column 405 synchronously drives the connected turntable 403 to rotate, and the transmission gears 412 at the opposite end of the turntable 403 rotate accordingly. Through meshing, they drive the side gear 411 to rotate, and the side gear 411 further drives the transmission gears 412 on the lower turntable 403 to rotate in the opposite direction, causing the upper and lower turntables 403 to drive their respective connected threaded rods 404 to rotate synchronously in the opposite direction. Because the threaded rod 404 is threadedly connected to the perforated disc 414, and the perforated disc 414 is limited by the inner wall of the central cavity 402 and cannot rotate, the threaded rod... The rotation of rod 404 is converted into the axial movement of perforated disc 414 along threaded rod 404, and the groove block 406 on the outer wall of perforated disc 414 moves accordingly; groove block 406 is rotatably connected to groove block 409 on telescopic blade 407 via rotating rod 410. When perforated disc 414 moves, it pushes or pulls rotating rod 410, causing rotating rod 410 to rotate and unfold around groove block 406 and groove block 409, thereby driving unfolding plate 408 to slide along the inside of telescopic blade 407; when When the motor 413 rotates in the forward direction, the deployable plate 408 extends from the telescopic blade 407, increasing the overall wind-receiving area of ​​the blade to improve wind capture efficiency in low-wind environments. When the motor 413 rotates in the reverse direction, the deployable plate 408 retracts into the telescopic blade 407, reducing the wind-receiving area and preventing blade overload damage under high wind conditions. The entire process achieves precise adjustment of the wind-receiving area of ​​the blade through the coordinated operation of gear transmission, threaded transmission and linkage transmission, ensuring the stable operation of the wind turbine under different wind conditions.

[0019] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A vertical axis wind turbine generator with integrated auxiliary motor starting, comprising a base (1), characterized in that: A generator (2) is fixedly connected to the right side of the upper surface of the base (1). An outer disk (3) is fixedly connected to the top of the output end of the generator (2). A blade assembly (4) is fixedly connected to the upper surface of the outer disk (3). A transmission assembly (5) is fixedly connected to the left side of the upper surface of the base (1). A toothed disc (6) is fixedly connected to the outer side wall of the outer disk (3). The transmission assembly (5) is meshed with the toothed disc (6).

2. A vertical axis wind turbine generator with integrated auxiliary motor starting according to claim 1, characterized in that: The blade assembly (4) includes a top column (401), a central cavity (402) is fixedly connected inside the top column (401), a turntable (403) is symmetrically rotatably connected inside the central cavity (402), threaded rods (404) are fixedly connected to the opposite sides of the turntable (403), and short columns (405) are fixedly connected to the opposite ends of the threaded rods (404), with the opposite ends of the short columns (405) rotatably connected to the inner wall of the top column (401).

3. A vertical axis wind turbine generator with integrated auxiliary motor starting according to claim 2, characterized in that: The outer side wall of the threaded rod (404) is threadedly connected to a perforated disc (414), and the outer side wall of the perforated disc (414) is symmetrically fixedly connected to a grooved block (406). The outer side wall of the top column (401) is symmetrically fixedly connected to multiple telescopic blades (407).

4. A vertical axis wind turbine generator with integrated auxiliary motor starting according to claim 3, characterized in that: The telescopic blade (407) is slidably connected to an unfolding plate (408) inside. The opposite ends of the telescopic blade (407) are symmetrically fixedly connected to two groove blocks (409). A rotating rod (410) is rotatably connected between adjacent groove blocks (406) and groove blocks (409).

5. A vertical axis wind turbine generator with integrated auxiliary motor starting according to claim 2, characterized in that: A side gear (411) is rotatably connected to the inner wall of the central cavity (402), and transmission teeth (412) are fixedly connected to the opposite ends of the turntable (403).

6. A vertical axis wind turbine generator with integrated auxiliary motor starting according to claim 5, characterized in that: The side gears (411) are all meshed with the transmission gears (412). The upper surface of the top column (401) is fixedly connected to a motor (413), and the output end of the motor (413) is fixedly connected to the short column (405) above.

7. A vertical axis wind turbine generator with integrated auxiliary motor starting according to claim 1, characterized in that: The transmission assembly (5) includes a sliding cavity (501), a side groove (502) is provided inside the sliding cavity (501), a horizontal block (503) slides inside the side groove (502), a sliding groove (504) is provided on the upper surface inside the sliding cavity (501), a slider (505) is fixedly connected to the upper surface of the horizontal block (503), an auxiliary motor (506) is fixedly connected to the upper surface of the slider (505), an auxiliary gear (507) is fixedly connected to the output end of the auxiliary motor (506), and the auxiliary gear (507) meshes with the toothed disc (6).

8. A vertical axis wind turbine generator with integrated auxiliary motor starting according to claim 7, characterized in that: An electric telescopic rod (508) is fixedly connected to the outer wall of the sliding cavity (501), and a crossbar (509) is fixedly connected to the output end of the electric telescopic rod (508). The crossbar (509) is fixedly connected to the front end of the cross block (503).

9. A vertical axis wind turbine generator with integrated auxiliary motor starting according to claim 1, characterized in that: A dustproof top cover (7) is fixedly connected to the upper surface of the base (1).

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