A motion conversion device for a vortex-induced vibration wind turbine

Abstract

The application discloses a motion conversion device of a vortex-induced vibration wind power generator, which comprises a swing rod, a three-leaf disc clamping groove, a three-leaf disc, a shell, a transmission gear clamping groove, a transmission shaft, a generator, a transmission gear, a thrust ball bearing and a cover plate. The lower end of the three-leaf disc is connected with the thrust ball bearing which is embedded into a column base. The periphery of the three-leaf disc is provided with gear teeth which are engaged with the transmission gear. One end of the transmission shaft is connected with the transmission gear and the other end is connected with the generator. The three-leaf disc is arranged in the three-leaf disc clamping groove which is fixed on the shell. The transmission gear is arranged in the transmission gear clamping groove and the upper end of the transmission gear clamping groove is fixedly connected with the cover plate. The lower end of the swing rod is fixedly connected with the bottom of the shell and the upper end of the swing rod is connected with a vortex-induced vibration device which is connected with a wind receiving body. The application can convert wind energy in all directions into electric energy and has high electric energy collection efficiency.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, and in particular to a motion conversion device for a vortex-induced vibration wind turbine. Background Technology

[0002] However, traditional wind power generation technology faces several challenges, such as the need for large wind turbine generators, large land area requirements, and noise pollution. Rotating wind turbines generate noise and visual pollution, require high wind speeds, and can only operate within specific wind directions. In contrast, vortex-induced vibration power generation technology is an innovative technology that converts wind energy into electricity based on the principle of vortex-induced aerodynamics. It is not limited by wind direction and has strong power generation capabilities even at low wind speeds. It offers significant advantages, including being environmentally friendly, having a relatively small and lightweight device, and being adaptable to a wider range of applications, particularly suitable for urban environments and space-constrained areas such as building surfaces. Furthermore, vortex-induced vibration power generation technology has lower noise levels and less environmental pollution, with a smaller impact on the surrounding ecosystem.

[0003] However, the vibration surface of a column subjected to vortex-induced vibration is perpendicular to the wind direction, which is variable as it comes from all directions, and the vibration surface is also variable. Therefore, the efficiency and application scenarios of conventional vortex-induced vibration generators will be significantly reduced. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a motion conversion device for a vortex-induced vibration wind turbine generator, which can convert wind energy from all directions into electrical energy with high energy collection efficiency.

[0005] Technical Solution: The motion conversion device of the present invention includes a swing rod, a three-lobed disc slot, a three-lobed disc, a housing, a transmission gear slot, a transmission shaft, a generator, a transmission gear, a thrust ball bearing, and a cover plate, all housed within a housing. The lower end of the three-lobed disc is connected to the thrust ball bearing, which is embedded in a column base. The column base is connected to the housing. The periphery of the three-lobed disc is provided with gear teeth that mesh with the transmission gear. One end of the transmission shaft is connected to the transmission gear, and the other end is connected to the generator. The three-lobed disc is housed in the three-lobed disc slot, which is fixed to the housing. The transmission gear is housed in the transmission gear slot, and the upper end of the transmission gear slot is fixedly connected to the cover plate. The generator is housed in a generator fixing slot, which is connected to the housing.

[0006] The lower end of the swing arm is fixedly connected to the bottom of the outer shell, and the upper end of the swing arm is connected to the vortex-induced vibration device, which is connected to the wind-receiving body.

[0007] Furthermore, the trilobed disk is provided with three blade-shaped holes, namely the first blade hole, the second blade hole and the third blade hole, which are evenly distributed around the center of the disk surface; wherein, each blade hole is composed of a continuous first arc surface, a third arc surface and a second arc surface.

[0008] Furthermore, in the non-working state, the axis of the swing arm coincides with the axis of the three-lobed disk; in the working state, the swing arm contacts the first arc surface on any of the blade holes and pushes the three-lobed disk to rotate; the three-lobed disk drives the transmission gear to rotate, and the transmission gear drives the generator to start generating electricity through the transmission shaft.

[0009] Furthermore, the swing arm is provided with a bearing, and the swing arm contacts the first arc surface through the bearing.

[0010] Furthermore, the generator is a permanent magnet motor.

[0011] Compared with the prior art, the significant advantages of this invention are as follows:

[0012] This invention employs a disc with a three-lobed hole and gear teeth on its outer circumference. Through a gear transmission structure, wind energy is converted into mechanical energy, and ultimately into electrical energy. A motion conversion device converts wind energy from all directions into rotational motion through the contact between an elastic rod and the disc, thus generating sufficient energy for power generation. Furthermore, vibration energy in all directions can generate electrical energy, resulting in high efficiency. At the same time, it overcomes the limitations of traditional unidirectional power generation, maximizing the efficiency of energy collection while minimizing the impact on the surrounding ecological environment. Attached Figure Description

[0013] Figure 1 This is the overall structural outline of the present invention;

[0014] Figure 2 This is a schematic diagram of the overall structure of the present invention without a shell;

[0015] Figure 3 This is a top view of the trilobed disk of the present invention;

[0016] Figure 4 for Figure 2 A sectional view;

[0017] Figure 5(a) is a schematic diagram of the pendulum vibrating to the left to generate electricity according to the present invention.

[0018] Figure 5(b) is a schematic diagram of the pendulum vibrating to the right to generate electricity according to the present invention;

[0019] Figure 6(a) is a schematic diagram of the upward vibration power generation of the pendulum rod according to the present invention.

[0020] Figure 6(b) is a schematic diagram of the downward vibration power generation of the pendulum rod according to the present invention. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] The wind-induced vortex-induced vibration power generation device of the present invention, as follows Figure 1 , Figure 2 As shown, it mainly includes a rocker arm 1, a trilobal disc slot 2, a trilobal disc 3, a housing 4, a transmission gear slot 8, a transmission shaft 9, a generator 10, a generator mounting slot 11, a transmission gear 15, a cover plate 16, etc. Figure 2 As shown, the trilobed disk 3 has teeth 13 around its periphery, and the trilobed disk slot 2 is fixed to the outer casing 4. The upper end of the transmission gear slot 8 is fixedly connected to the cover plate 16, and the transmission shaft 9 is located in the transmission gear slot 8. The transmission gear 15 is fixedly connected to the transmission shaft 9 so that they can rotate together; the transmission gear 15 meshes with the teeth 13 on the trilobed disk 3. The generator 10 is fixedly connected to the generator fixing slot 11, and the generator fixing slot 11 is fixedly connected to the outer casing 4. The transmission shaft 9 is fixedly connected to the input shaft of the generator 10 and can rotate together. The lower end of the swing arm 1 is fixedly connected to the bottom of the outer casing 4, and the upper end of the swing arm 1 is connected to the vortex-induced vibration device, which is connected to the wind-receiving body; in the non-working state, the axis of the swing arm 1 coincides with the axis of the trilobed disk 3. In this embodiment, the generator selected is a permanent magnet motor.

[0023] like Figure 3 As shown, the trilobed disk 3 has three blade-shaped holes, namely the first blade hole 21, the second blade hole 22, and the third blade hole 23. The three blade holes have the same structure and are evenly distributed around the center of the disk surface. Each blade hole is composed of a continuous first arc surface 31, a third arc surface 33, and a second arc surface 32. Figure 4 As shown, the lower end of the trilobed disk 3 is connected to the thrust ball bearing 17. When the trilobed disk 3 rotates, it drives the upper end 5 of the thrust ball bearing to rotate. The thrust ball bearing 17 is embedded in the column base 12, and the lower end 7 of the thrust ball bearing is connected to the inner circular platform of the column base 12. The lower end of the column base 12 is fixed to the bottom of the outer casing 4, and the upper end is fixed to the lower end of the trilobed disk slot 2. In this way, the trilobed disk 3 is fixed to rotate and friction is reduced.

[0024] Initially, the axis of the pendulum 1 coincides with the axis of the trilobal disk 3, and the pendulum 1 vibrates due to the vortex-induced vibration device. The following explanation uses the left, right, up, and down swinging of the pendulum 1 as examples to illustrate the working process:

[0025] As shown in Figure 5(a), when the pendulum 1 vibrates to the left, it first enters the first blade hole 21, contacts and pushes the first arc surface 31, and the trilobed disk 3 rotates clockwise by a certain angle. As shown in Figure 5(b), when the pendulum 1 vibrates to the right, it enters the second blade hole 22, contacts and pushes the arc corresponding to the first arc surface 31, and the trilobed disk 3 continues to rotate clockwise. This process repeats, and the trilobed disk 3 begins to rotate clockwise. The gear teeth 13 rotate with it. Because the gear teeth 13 mesh with the transmission gear 15, the transmission gear 15 drives the transmission shaft 9 to rotate counterclockwise, and the transmission shaft 9 drives the generator 10 to start generating electricity.

[0026] As shown in Figure 6(a), when the vortex-induced vibration device causes the pendulum 1 to vibrate upwards, the pendulum 1 enters any blade hole and pushes the first arc surface 31, thereby causing the trilobed disk 3 to rotate clockwise by a certain angle. As shown in Figure 6(b), when the pendulum 1 vibrates downwards, it enters the adjacent blade hole, contacts and pushes the first arc surface 31, causing the trilobed disk 3 to rotate clockwise. This process repeats, and the trilobed disk 3 begins to rotate counterclockwise. The gear teeth 13 rotate with it. Because the gear teeth 13 mesh with the transmission gear 15, the transmission gear 15 rotates counterclockwise, and the transmission shaft 9 drives the generator 10 to rotate and generate electricity.

[0027] During the aforementioned movement, because the pendulum 1 is equipped with a bearing 14, the pendulum 1 contacts the first arc surface 31 through the bearing 14, thereby reducing the loss of the pendulum 1 during vibration. As can be seen from the above, the present invention can collect wind energy from various directions and convert it into electrical energy.

Claims

1. A motion conversion device for a vortex-induced vibration wind turbine generator, characterized in that, Includes a rocker arm (1) housed in the outer casing (4), a trilobal disc slot (2), a trilobal disc (3), the outer casing (4), a transmission gear slot (8), a transmission shaft (9), a generator (10), and a transmission gear (15). The thrust ball bearing (17) and cover plate (16) are connected. The lower end of the trilobed disc (3) is connected to the thrust ball bearing (17), and the thrust ball bearing (17) is embedded in the column base (12). The column base (12) is connected to the outer shell (4). The periphery of the trilobed disc (3) is provided with gear teeth (13), which mesh with the transmission gear (15). One end of the transmission shaft (9) is connected to the transmission gear (15), and the other end is connected to the generator (10). The trilobed disc (3) is located in the trilobed disc slot (2), which is fixed to the outer shell (4). The transmission gear (15) is located in the transmission gear slot (8), and the upper end of the transmission gear slot (8) is fixedly connected to the cover plate (16). The generator (10) is located in the generator fixing slot (11), which is connected to the outer shell (4). The lower end of the swing arm (1) is fixedly connected to the bottom of the outer shell (4), the upper end of the swing arm (1) is connected to the vortex-induced vibration device, and the vortex-induced vibration device is connected to the wind-receiving body. The trilobed disk (3) has three leaf-shaped holes, namely the first leaf hole (21), the second leaf hole (22) and the third leaf hole (23). The three leaf holes are evenly distributed with the center of the disk surface as the center. Each leaf hole is composed of a continuous first arc surface (31), a third arc surface (33) and a second arc surface (32). In the non-working state, the axis of the swing rod (1) coincides with the axis of the trilobed disk (3); in the working state, the swing rod (1) contacts the first arc surface (31) on any blade hole and pushes the trilobed disk (3) to rotate; the trilobed disk (3) drives the transmission gear (15) to rotate, and the transmission gear (15) drives the generator (10) to start generating electricity through the transmission shaft (9).

2. The motion conversion device for the vortex-induced vibration wind turbine generator according to claim 1, characterized in that, The swing arm (1) is provided with a bearing (14), and the swing arm (1) contacts the first arc surface (31) through the bearing (14).

3. The motion conversion device for a vortex-induced vibration wind turbine generator according to any one of claims 1-2, characterized in that, The generator is a permanent magnet motor.

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