A kind of inclined plate type vertical axis wind power generation device

Abstract

This utility model discloses a blade-type vertical axis wind power generation device, which includes: blades, a vertical axis wind turbine, a mounting frame, a guide sleeve, and a tie rod. The vertical axis wind turbine is vertically mounted at the bottom of the mounting frame. The vertical axis wind turbine has a rotating shaft that extends upward through the mounting frame. A first turntable is mounted on the rotating shaft. A cantilever extending radially along the first turntable is arranged in a ring on the first turntable. The blades are tilted and mounted on the cantilever and extend upward. A second turntable is mounted on the rotating shaft above the first turntable. The guide sleeve is tilted and mounted on the second turntable and corresponds one-to-one with the blades. The tie rod is disposed in the guide sleeve, and the front end of the tie rod is movably connected to the blade. The guide sleeve has an axially extending waist hole. A stop pin that radially penetrates the tie rod is disposed in the waist hole. A spring is disposed in the guide sleeve in front of the stop pin. The spring can automatically change the tilt angle of the blade according to the wind speed, limit the increase of the rotating shaft speed, and avoid damage caused by excessive speed.

Description

Technical Field

[0001] This utility model relates to the field of vertical axis wind power generation equipment, and in particular to a blade-type vertical axis wind power generation device. Background Technology

[0002] Wind power generation equipment is mainly divided into vertical axis wind turbines and horizontal axis wind turbines. Among them, vertical axis wind turbines have a simple structure and are adaptable to multiple wind directions. In addition, vertical axis wind turbines have a small footprint, making them particularly suitable for integration into urban buildings.

[0003] The blade angle of a conventional vertical axis wind turbine is usually fixed and cannot be adjusted automatically. When the wind is too strong, the turbine shaft speed will be too high. If the speed exceeds the limit, it can easily cause equipment damage, which needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a blade-type vertical axis wind power generation device that allows for adjustment of the blade tilt and angle, thereby improving its adaptability to wind conditions.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A blade-type vertical axis wind power generation device includes: blades, a vertical axis wind turbine, a mounting frame, a guide sleeve, and a tie rod. The vertical axis wind turbine is vertically mounted at the bottom of the mounting frame. The vertical axis wind turbine has a rotating shaft that extends upward through the mounting frame. A first turntable is mounted on the rotating shaft. A cantilever extending radially along the first turntable is arranged in a ring on the first turntable. The blades are tilted and tilted on the cantilever and extend upward. A second turntable is mounted on the rotating shaft above the first turntable. The guide sleeve is tilted and mounted on the second turntable, corresponding to the blades one by one. The tie rod is disposed in the guide sleeve. The front end of the tie rod is movably connected to the blade. The guide sleeve has an axially extending waist hole. A stop pin that radially penetrates the tie rod is disposed in the waist hole. A spring is disposed in front of the stop pin in the guide sleeve.

[0007] The mounting bracket is provided with a bushing corresponding to the rotating shaft.

[0008] The cantilever end is provided with a first pin seat that is movably connected to the blade.

[0009] The first turntable is provided with a first screw that is perpendicularly connected to the rotating shaft, and the second turntable is provided with a second screw that is perpendicularly connected to the rotating shaft.

[0010] The second turntable is provided with a second pin seat that is movably connected to the guide sleeve, and the blade is provided with a third pin seat that is movably connected to the pull rod.

[0011] The guide sleeve is provided with a threaded sleeve located at the front end of the spring.

[0012] The threaded sleeve has a nut at its front end, located in front of the guide sleeve, and the guide sleeve has an internal thread corresponding to the threaded sleeve.

[0013] The spring is concentrically sleeved on the pull rod.

[0014] The beneficial effects of this utility model are as follows: In a stationary state, the blades of a tilted vertical axis wind power generation device remain vertical and the equivalent length of the blades is kept at its maximum, which helps to reduce the requirement for starting wind speed. As the wind speed gradually increases, the blades accelerate to rotate and gradually flip outward through centrifugal force, changing the tilt angle, reducing the equivalent length of the blades, limiting the increase of the shaft speed, avoiding the problem of damage caused by excessive speed, and improving the safety of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure after the blades are flipped outwards and tilted. Detailed Implementation

[0017] The following is combined Figures 1 to 2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0018] like Figure 1 The shown inclined blade type vertical axis wind power generation device includes: blades 7, a vertical axis wind turbine 1, a mounting frame 2, a guide sleeve 10, and a tie rod 5. The vertical axis wind turbine 1 is vertically mounted at the bottom of the mounting frame 2 and can be fixed with bolts, resulting in a stable structure. The vertical axis wind turbine 1 is provided with a rotating shaft 4 that extends upward through the mounting frame 2. In this embodiment, the mounting frame 2 is provided with a bushing 3 corresponding to the rotating shaft 4 to improve the rotational stability of the rotating shaft 4.

[0019] A first turntable 11 is provided on the rotating shaft 4, and a first screw 18 is provided on the first turntable 11 perpendicularly connected to the rotating shaft 4, resulting in a robust structure. In this embodiment, a second turntable 12 is provided on the rotating shaft 4 above the first turntable 11, and a second screw 19 is provided on the second turntable 12 perpendicularly connected to the rotating shaft 4, facilitating assembly and allowing the first turntable 11, the second turntable 12, and the rotating shaft 4 to rotate synchronously.

[0020] A cantilever 9 extending radially along the first turntable 11 is arranged in a ring on the first turntable 11. The tail of the cantilever 9 is welded and fixed to the first turntable 11, resulting in a robust structure. The blade 7 is tilted and tilted on the cantilever 9 and extends upward. In this embodiment, the end of the cantilever 9 is provided with a first pin seat 6 that is movably connected to the blade 7. Figure 1 As shown, in a stationary state, blade 7 remains vertical, and the equivalent length of blade 7 remains at its maximum, which helps to reduce the requirement for starting wind speed.

[0021] The guide sleeve 10 is rotatably mounted on the second turntable 12 and corresponds one-to-one with the blade 7. In this embodiment, the second turntable 12 is provided with a second pin seat 13 that is movably connected to the guide sleeve 10 to accommodate the slight up-and-down rotation of the guide sleeve 10.

[0022] The pull rod 5 is telescopically mounted in the guide sleeve 10. The front end of the pull rod 5 is movably connected to the blade 7. In this embodiment, the blade 7 is provided with a third pin seat 8 that is movably connected to the pull rod 5 to adapt to changes in the tilt angle of the blade 7.

[0023] like Figure 2 As shown, an axially extending waist hole 17 is provided on the guide sleeve 10. A stop pin 14 that radially penetrates the pull rod 5 is provided in the waist hole 17. The extension and retraction stroke of the pull rod 5 is limited by the cooperation between the stop pin 14 and the waist hole 17 to prevent it from falling off.

[0024] A spring 15 is provided in the guide sleeve 10, located in front of the stop pin 14, to provide elastic support for the stop pin 14 and maintain the inward driving force of the stop pin 14. The spring 15 can be concentrically sleeved on the pull rod 5, which facilitates assembly.

[0025] In this embodiment, the guide sleeve 10 is provided with a threaded sleeve 16 located at the front end of the spring 15. The guide sleeve 10 is provided with an internal thread corresponding to the threaded sleeve 16. The front end of the threaded sleeve 16 is provided with a nut 20 located in front of the guide sleeve 10, which facilitates the rotation of the threaded sleeve 16 by a wrench to change the preload on the spring 15. This makes adjustment convenient, helps to change the adaptability to wind speed, and ensures that the blade 7 can remain vertical in a stationary state.

[0026] like Figure 2 As shown, as the wind speed gradually increases, the blade 7 accelerates its rotation and gradually flips outward through centrifugal force, changing the tilt angle, reducing the equivalent length of the blade 7, limiting the increase in the rotation speed of the shaft 4, avoiding damage caused by excessive rotation speed 4, and improving the safety of use.

[0027] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A tilting-plate type vertical axis wind power generation device, characterized in that, include: The wind turbine comprises blades, a vertical axis wind turbine, a mounting frame, guide sleeves, and tie rods. The vertical axis wind turbine is vertically mounted at the bottom of the mounting frame. The wind turbine has a rotating shaft extending upwards through the mounting frame. A first turntable is mounted on the rotating shaft. A cantilever extending radially along the first turntable is arranged in a ring on the first turntable. The blades are tilted and mounted on the cantilever, extending upwards. A second turntable is mounted on the rotating shaft above the first turntable. The guide sleeve is tilted and mounted on the second turntable, corresponding to each blade. The tie rod is disposed within the guide sleeve, with its front end movably connected to the blade. The guide sleeve has an axially extending waist hole, in which a stop pin radially penetrates the tie rod. A spring is located in front of the stop pin within the guide sleeve.

2. The inclined blade type vertical axis wind power generation device according to claim 1, characterized in that, The mounting bracket is provided with a bushing corresponding to the rotating shaft.

3. The inclined blade type vertical axis wind power generation device according to claim 1, characterized in that, The cantilever end is provided with a first pin seat that is movably connected to the blade.

4. The inclined blade type vertical axis wind power generation device according to claim 1, characterized in that, The first turntable is provided with a first screw that is perpendicularly connected to the rotating shaft, and the second turntable is provided with a second screw that is perpendicularly connected to the rotating shaft.

5. The inclined blade type vertical axis wind power generation device according to claim 1, characterized in that, The second turntable is provided with a second pin seat that is movably connected to the guide sleeve, and the blade is provided with a third pin seat that is movably connected to the pull rod.

6. The inclined blade type vertical axis wind power generation device according to claim 1, characterized in that, The guide sleeve is provided with a threaded sleeve located at the front end of the spring.

7. The inclined blade type vertical axis wind power generation device according to claim 6, characterized in that, The front end of the threaded sleeve is provided with a nut located in front of the guide sleeve, and the guide sleeve is provided with an internal thread corresponding to the threaded sleeve.

8. The inclined blade type vertical axis wind power generation device according to claim 1, characterized in that, The spring is concentrically sleeved on the pull rod.

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