Automatic vertical structure of vertical axis wind turbine

By introducing a stabilizing device into the vertical-axis wind turbine, automatic adjustment of the blade angle is achieved, solving the problems of increased resistance and high damage rate caused by the non-rotatable blades, and improving wind energy utilization and equipment stability.

CN120759700APending Publication Date: 2025-10-10SICHUAN SHENGHUI TIMES MECHANICAL & ELECTRICAL EQUIPMENT INTELLIGENT MANUFACTURING CO LTD
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Patent Information

Application Number
CN202510849483.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-24
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

The blades of existing vertical axis wind turbines cannot rotate relative to the main shaft, resulting in increased resistance when facing the wind, low wind energy utilization, and easy damage when adjusting the blades to a flexible state, resulting in a large amount of consumables.

Method used

A stabilizing device is used, including components such as a screw, a slider, a pull rod and a rotating motor. The fan blade angle is automatically adjusted through gear transmission and thread transmission to ensure that the fan blades rotate stably under different wind directions.

Benefits of technology

It improves the utilization rate of wind energy, reduces the damage rate of fan blades, and enhances the stability and ease of use of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of wind driven generators, in particular to an automatic vertical structure of a vertical axis wind driven generator, which comprises a supporting rod, fan blades, a supporting rod, a first rotating seat and a stabilizing device, a connecting rod is arranged on the supporting rod, the connecting rod is fixedly arranged on the surface of the supporting rod, a sliding groove is formed in the surface of the connecting rod, and the stabilizing device is arranged on the inner wall of the sliding groove. The stabilizing device comprises a lead screw and a pull rod, and the lead screw is rotationally connected with the inner wall of the sliding groove. According to the vertical-axis wind driven generator, by arranging the stabilizing device, the angles of the fan blades can be conveniently adjusted and stabilized, and the problems that when an existing vertical-axis wind driven generator is implemented, the fan blades cannot rotate relative to the main shaft, so that the fan blades are in a windward state, the borne resistance is increased, and the wind energy utilization rate is low are solved; and if the fan blades are not uniform, the blowing amplitude of the fan blades is not uniform, the damage rate is greatly increased, consumables are consumed, and the stability of the equipment is effectively improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of wind turbines, and in particular to an automatic vertical structure of a vertical-axis wind turbine. Background Art

[0002] The automatic vertical structure of a vertical-axis wind turbine means that the rotation axis of its wind rotor is perpendicular to the ground or the direction of the airflow. This design eliminates the need to readjust the orientation of the wind turbine when the wind direction changes, thereby simplifying the structural design and reducing the torque exerted by the wind rotor on the wind.

[0003] In the prior art, there is a document with publication number CN218563797U, which describes a vertical axis wind turbine blade assembly comprising a connecting disc and a plurality of blades hingedly connected to the connecting disc via a bracket, wherein a buffer component for buffering the rotation of the blades is further connected between the blades and the bracket. The present invention hinges the wind turbine blades to the bracket and further connects a buffer component between the bracket and the blades, thereby enabling the blades to autonomously rotate to different angles when in different positions relative to the wind direction in the wind field. When the blades are in a position performing positive work, wind energy is converted to the maximum extent into mechanical energy that drives the main shaft to rotate. At the same time, blades performing negative work are able to rotate to a certain angle, reducing the area of ​​interaction with the wind flow, thereby reducing resistance, and greatly improving the wind energy utilization rate and power generation efficiency of traditional low-wind-speed wind turbines.

[0004] In order to solve the problem of angle control of fan blades in existing equipment, since the fan blades of existing vertical axis wind turbines cannot rotate relative to the main shaft during implementation, the fan blades are in a windward state, which increases the resistance and leads to low wind energy utilization. When the fan blades are adjusted to a flexible state, it is easy to cause the fan blades to blow with different amplitudes, resulting in a significant increase in the damage rate and more consumables. Improvements are needed in this regard. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the existing vertical axis wind turbine in the prior art is that the fan blades cannot rotate relative to the main shaft during implementation, which makes the fan blades in the windward state encounter increased resistance, resulting in low wind energy utilization rate. When the fan blades are adjusted to a flexible state, it is easy to cause the fan blades to blow with different amplitudes, resulting in a significant increase in the damage rate and more material consumption. An automatic vertical structure of a vertical axis wind turbine is proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an automatic vertical structure of a vertical axis wind turbine, comprising a support rod, fan blades, a support rod, a first rotating seat and a stabilizing device, the fan blades are arranged on the surface of the support rod, the support rod is fixedly connected to the surface of the support rod, the first rotating seat is fixedly connected to the surface of the fan blade, the end of the support rod away from the support rod is rotatably connected to the inner wall of the first rotating seat, a connecting rod is provided on the support rod, the connecting rod is fixedly arranged on the surface of the support rod, a sliding groove is provided on the surface of the connecting rod, the inner wall of the sliding groove is provided with a stabilizing device, the stabilizing device comprises a screw rod and a pull rod, and the screw rod is rotatably connected to the inner wall of the sliding groove.

[0007] Furthermore, the number of the support rods is three and they are arranged in a surrounding array, the number of the connecting rods is three and they are arranged in a surrounding array, and the surface of the fan blade is fixedly connected to a second rotating seat.

[0008] Furthermore, a slider is slidably connected to the inner wall of the slide groove, and the slider is threadedly transmitted to the surface of the screw rod.

[0009] Furthermore, a protrusion is fixedly connected to the surface of the slider, the surface of the protrusion is rotatably connected to the rotating shaft, the surface of the rotating shaft is rotatably connected to a pull rod, and one end of the pull rod away from the rotating shaft is rotatably connected to the inner wall of the second rotating seat.

[0010] Furthermore, a groove is formed on the surface of the connecting rod, a driving gear is fixedly connected to the surface of the screw rod, and the driving gear is engaged with the inner wall of the groove.

[0011] Furthermore, a fixing ring is fixedly connected to the upper surface of the connecting rod, and a rotating motor is fixedly connected to the surface of the fixing ring.

[0012] Furthermore, the driving end of the rotating motor is rotatably connected to a rotating rod, the surface of the rotating rod is fixedly connected to a driving gear, and the driving gear is gear-driven with the surface of the driving gear.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, a stabilizing device is provided to facilitate the adjustment of the angle of the fan blades. When the angle is stable, the fan blades are more convenient to use. The rotating motor drives the rotating rod to position and rotate, thereby driving the driving gear and the active gear to rotate. Since the active gear is fixed on the screw rod, the active gear is then adjusted to rotate, and then the screw rod drives the slider to perform threaded transmission, so that the slider slides stably along the inner wall of the slide groove, and the slider is pulled by the protrusion and the rotating shaft, so that the pull rod rotates stably along the axis of the first rotating seat, so that the pull rod pulls one side of the fan blade to adjust its angle.

[0015] 2. In the present invention, by setting a stabilizing device, it is convenient to adjust and stabilize the angle of the fan blades, so as to avoid the situation in which the fan blades of the existing vertical axis wind turbine cannot rotate relative to the main shaft during implementation. This causes the fan blades to be in a windward state, which increases the resistance and leads to a low wind energy utilization rate. When the fan blades are adjusted to a flexible state, it is easy to cause the fan blades to blow with different amplitudes, resulting in a significant increase in the damage rate and more consumables, thereby effectively improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of an automatic vertical structure of a vertical axis wind turbine proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of a stabilizing device in an automatic vertical structure of a vertical axis wind turbine proposed by the present invention;

[0018] Figure 3 The present invention proposes an automatic vertical structure of a vertical axis wind turbine Figure 2 Schematic diagram of point A;

[0019] Figure 4 A schematic diagram of the main structure of a rotating motor in an automatic vertical structure of a vertical axis wind turbine proposed by the present invention;

[0020] Figure 5 The present invention proposes an automatic vertical structure of a vertical axis wind turbine Figure 4 Schematic diagram of point B.

[0021] Legend:

[0022] 1. Support rod; 2. Fan blade; 3. Support rod; 4. First rotating seat; 5. Stabilizing device; 51. Connecting rod; 52. Slide groove; 53. Screw rod; 54. Second rotating seat; 55. Slider; 56. Bump; 57. Rotating shaft; 58. Pull rod; 59. Slot; 510. Driving gear; 511. Fixed ring; 512. Rotating motor; 513. Rotating rod; 514. Driving gear. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 5 The present invention provides a technical solution: an automatic vertical structure of a vertical axis wind turbine, comprising a support rod 1, a fan blade 2, a support rod 3, a first rotating seat 4 and a stabilizing device 5, the fan blade 2 is arranged on the surface of the support rod 1, the support rod 3 is fixedly connected to the surface of the support rod 1, the first rotating seat 4 is fixedly connected to the surface of the fan blade 2, and one end of the support rod 3 away from the support rod 1 is rotatably connected to the inner wall of the first rotating seat 4, a connecting rod 51 is provided on the support rod 1, the connecting rod 51 is fixedly arranged on the surface of the support rod 1, a slide groove 52 is opened on the surface of the connecting rod 51, and a stabilizing device 5 is provided on the inner wall of the slide groove 52.

[0024] The specific configuration and function of the stabilizing device 5 will be described in detail below.

[0025] In this embodiment, the stabilizing device 5 includes a screw rod 53 and a pull rod 58 , and the screw rod 53 is rotatably connected to the inner wall of the sliding groove 52 .

[0026] Specifically, the number of the support rods 3 is three and they are arranged in a surrounding array, the number of the connecting rods 51 is three and they are arranged in a surrounding array, and the surface of the fan blade 2 is fixedly connected with a second rotating seat 54 .

[0027] Specifically, a slider 55 is slidably connected to the inner wall of the sliding groove 52 , and the slider 55 is threadedly connected to the surface of the screw rod 53 .

[0028] Specifically, a protrusion 56 is fixedly connected to the surface of the slider 55, a rotating shaft 57 is rotatably connected to the surface of the protrusion 56, a pull rod 58 is rotatably connected to the surface of the rotating shaft 57, and an end of the pull rod 58 away from the rotating shaft 57 is rotatably connected to the inner wall of the second rotating seat 54.

[0029] Specifically, a slot 59 is formed on the surface of the connecting rod 51 , and a driving gear 510 is fixedly connected to the surface of the screw rod 53 . The driving gear 510 is engaged with the inner wall of the slot 59 .

[0030] Specifically, a fixing ring 511 is fixedly connected to the upper surface of the connecting rod 51 , and a rotating motor 512 is fixedly connected to the surface of the fixing ring 511 .

[0031] Specifically, the driving end of the rotating motor 512 is rotatably connected to the rotating rod 513 , and the surface of the rotating rod 513 is fixedly connected to the driving gear 514 . The driving gear 514 is gear-driven with the surface of the driving gear 510 .

[0032] The effects achieved by the above components are as follows: by providing the slide groove 52, it is convenient for the screw rod 53 to drive the slider 55 to move, and the slider 55 can slide stably along the inner wall of the slide groove 52 to prevent the slider 55 from rotating synchronously with the rotation of the screw rod 53. The screw rod 53 is provided to facilitate the driving slider 55 to move its position, so that the slider 55 pulls the pull rod 58 to move. The second rotating seat 54 is provided to facilitate the slider 55 to pull the pull rod 58, and the pull rod 58 can stably rotate along the axis of the second rotating seat 54, so that the pull rod 58 can stably pull one side of the fan blade 2 and then adjust the angle. The slot 59 is provided to facilitate the stable rotation of the driving gear 510. The rotating motor 512 is provided to facilitate the driving rod 513 to drive the driving gear 514 to rotate. The connection between the driving gear 514 and the driving gear 510 is provided to facilitate the rotating motor 512 to indirectly drive the driving gear 510 to rotate, and can drive the screw rod 53 to rotate, thereby adjusting the position of the slider 55 to change the inclination angle of the fan blade 2.

[0033] Working principle: By setting up a stabilizing device 5, it is convenient to adjust the angle of the fan blade 2. When it is stable, the use of the fan blade 2 is more convenient. The rotating motor 512 drives the rotating rod 513 to rotate for positioning, and then drives the driving gear 514 and the active gear 510 to rotate. Since the active gear 510 is fixed on the screw rod 53, the active gear 510 is then mobilized to rotate, and then the screw rod 53 drives the slider 55 for thread transmission, so that the slider 55 slides stably along the inner wall of the slide groove 52, and the slider 55 is pulled by the protrusion 56 and the rotating shaft 57, so that the pull rod 58 rotates stably along the axis of the first rotating seat 4, so that the pull rod 58 pulls one side of the fan blade 2 to adjust its angle.

[0034] By setting up the stabilizing device 5, it is convenient to adjust and stabilize the angle of the fan blade 2, so as to avoid the situation in which the fan blade 2 cannot rotate relative to the main shaft during the implementation of the existing vertical axis wind turbine. This causes the fan blade 2 to be in a windward state, which increases the resistance and leads to a low wind energy utilization rate. When the fan blade 2 is adjusted to a flexible state, it is easy to cause the fan blade 2 to blow with different amplitudes, resulting in a significant increase in the damage rate and more consumables, thereby effectively improving the stability of the equipment.

Claims

1. An automatic vertical structure of a vertical axis wind turbine, comprising a support rod (1), a fan blade (2), a support rod (3), a first rotating seat (4) and a stabilizing device (5), characterized in that: The fan blade (2) is arranged on the surface of the support rod (1), the support rod (3) is fixedly connected to the surface of the support rod (1), the first rotating seat (4) is fixedly connected to the surface of the fan blade (2), and the end of the support rod (3) away from the support rod (1) is rotatably connected to the inner wall of the first rotating seat (4). The support rod (1) is provided with a connecting rod (51), and the connecting rod (51) is fixed to the surface of the support rod (1). A sliding groove (52) is provided on the surface of the connecting rod (51), and a stabilizing device (5) is provided on the inner wall of the sliding groove (52). The stabilizing device (5) includes a screw rod (53) and a pull rod (58), and the screw rod (53) is rotatably connected to the inner wall of the sliding groove (52).

2. The automatic vertical structure of a vertical axis wind turbine according to claim 1, characterized in that: The number of the support rods (3) is three and they are arranged in a surrounding array. The number of the connecting rods (51) is three and they are arranged in a surrounding array. The surface of the fan blade (2) is fixedly connected with a second rotating seat (54).

3. The automatic vertical structure of a vertical axis wind turbine according to claim 2, characterized in that: The inner wall of the sliding groove (52) is slidably connected with a slider (55), and the slider (55) is threadedly transmitted with the surface of the screw rod (53).

4. The automatic vertical structure of a vertical axis wind turbine according to claim 3, characterized in that: The surface of the slider (55) is fixedly connected to a protrusion (56), the surface of the protrusion (56) is rotatably connected to a rotating shaft (57), the surface of the rotating shaft (57) is rotatably connected to a pull rod (58), and the end of the pull rod (58) away from the rotating shaft (57) is rotatably connected to the inner wall of the second rotating seat (54).

5. The automatic vertical structure of a vertical axis wind turbine according to claim 2, characterized in that: A slot (59) is formed on the surface of the connecting rod (51), and a driving gear (510) is fixedly connected to the surface of the screw rod (53), and the driving gear (510) is engaged with the inner wall of the slot (59).

6. The automatic vertical structure of a vertical axis wind turbine according to claim 5, characterized in that: A fixing ring (511) is fixedly connected to the upper surface of the connecting rod (51), and a rotating motor (512) is fixedly connected to the surface of the fixing ring (511).

7. The automatic vertical structure of a vertical axis wind turbine according to claim 6, characterized in that: The driving end of the rotating motor (512) is rotatably connected to a rotating rod (513), and the surface of the rotating rod (513) is fixedly connected to a driving gear (514). The driving gear (514) is gear-driven with the surface of the driving gear (510).

Citation Information

Patent Citations

  • Blade group of vertical axis wind turbine

    CN218563797U