Vertical axis wind turbine brake device

A brake device and wind turbine technology, applied in the control of wind turbines, wind turbines, machines/engines, etc., can solve problems such as damage to brake discs and brake pads, damage to vertical axis wind turbines, large friction, etc., to achieve windward The effect of increasing the area and improving the service life

Inactive Publication Date: 2012-05-02
SHENZHEN FENGFA SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor found in practice that since the brake disc clamps the brake disc, the vertical axis wind turbine will stop instantly when it decelerates, and its inertia will generate a large impact force, which will affect the blades 2 and brackets 3 of the vertica

Method used

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  • Vertical axis wind turbine brake device
  • Vertical axis wind turbine brake device
  • Vertical axis wind turbine brake device

Examples

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Example Embodiment

[0027] The invention provides a vertical axis wind turbine braking device, which can reduce the speed of the vertical axis wind turbine and ensure the safe braking of the vertical axis wind turbine.

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0029] See figure 2 , figure 2 The basic structure diagram of a vertical axis wind turbine braking device provided by the present invention. Such as figure 2 As shown, the vertical axis wind turbine braking device may include:

[0030] Rotating shaft 1, blade 2, bracket 3, spoiler 4 and spo...

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Abstract

The invention provides a vertical axis wind turbine brake device, wherein one end of a rotary shaft of a spoiler is connected with a support of a vertical axis wind turbine, the other end of the rotary shaft of the spoiler is articulated with the spoiler, and the profile shape of the spoiler is a symmetrical wing shape; when wind force is smaller, the spoiler can be used for rotating around the rotary shaft of the spoiler until the profile axial line is parallel to the horizontal plane without influencing the normal operation of the vertical axis wind turbine; and when the wind force is greater, the spoiler can be used for rotating until the profile axial line is vertical to the horizontal plane, the frontal area is increased, and greater resistance is generated, thus the vertical axis wind turbine slows down. The brake effect can be achieved without the mutual effect of machinery, the vertical axis wind turbine is ensured to brake safely, and the service life of the brake device is prolonged.

Description

technical field [0001] The invention relates to the field of wind energy applications, in particular to a braking device for a vertical axis wind turbine. Background technique [0002] At present, vertical axis wind turbines mainly have three structural types: S-type, Φ-type and H-type. Such as figure 1 As shown, taking an H-type vertical-axis wind turbine as an example, the vertical-axis wind turbine includes a rotating shaft 1 , blades 2 and a bracket 3 ; wherein, each blade 2 and the rotating shaft 1 are fixedly connected to the bracket 3 . [0003] The lower end of the rotating shaft 1 of the vertical axis wind turbine can be connected with a generator, and the vertical axis wind turbine can receive wind and convert wind energy into electrical energy for output to the generator. When the wind is strong, the speed of the vertical axis wind turbine increases accordingly, and the output power of the wind turbine increases significantly. If the rotating speed is too high,...

Claims

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Application Information

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IPC IPC(8): F03D7/06
CPCY02E10/74
Inventor 周庆余何利易四明
Owner SHENZHEN FENGFA SCI & TECH DEV
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