Fan linkage stop device and fan including device

A shutdown device and linkage technology, applied in the direction of machine/engine, wind engine control, wind engine, etc., can solve the problems of brake friction material overheating, fatigue, excessive wear, etc., to overcome brake overheating, reduce impeller speed and energy , high reliability effect

Active Publication Date: 2016-11-23
青岛安华新元风能股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the traditional small and medium-sized wind turbines, the usual treatment method for high wind shutdown protection is to use mechanical friction braking. Energy storage, causing this kind of direct braking to produce a considerable impact, making it inevitable that the friction material of the brake will be overheated, over-wear and other brake failure problems. After a long time, the key components such as the fan blade shaft and the motor shaft produce fatigue

Method used

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  • Fan linkage stop device and fan including device
  • Fan linkage stop device and fan including device
  • Fan linkage stop device and fan including device

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Embodiment Construction

[0051] As required, specific embodiments of the invention will be disclosed herein. However, it should be understood that the embodiments disclosed herein are merely typical examples of the invention, which can be embodied in various forms. Therefore, specific details disclosed herein are not to be considered limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the invention in any appropriate way in practice, This includes taking various features disclosed herein and combining features that may not be expressly disclosed herein.

[0052]It should be noted that, herein, directional representations, such as "upper", "lower", "left", "right", "front", " After", etc., are not absolute, but relative. These representations are appropriate when various parts of the disclosed embodiments are located in the locations shown in the figures. If the position or frame of reference of the disclosed embodiment...

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Abstract

The invention provides a fan linkage stop device. The fan linkage stop device comprises a brake fixed plate, a linkage transmission mechanism fixed base, a stop driving mechanism, a linkage transmission mechanism, a mechanical braking mechanism and a variable pitch braking mechanism, wherein the mechanical braking mechanism and the variable pitch braking mechanism are linked by the linkage transmission mechanism; the mechanical braking mechanism is configured to start mechanical braking for a generator main shaft when the variable pitch braking mechanism finishes variable pitch braking for fan blades, so that the working conditions of the fan blades can be firstly changed through pitch change, the capacity of an impeller capturing wind energy is reduced, and the rotating speed and energy of the impeller are effectively reduced; then, the mechanical braking mechanism is used for braking to effectively prevent higher impact in the fan stop process and overcome the excessive heating and wearing problem in braking; and the whole set of linkage stop device is safer and more stable, so that the whole unit is higher in reliability.

Description

technical field [0001] The present invention relates to small and medium-sized fans, in particular to a protection device for stopping a fan in high winds, and more particularly to a linkage stopping device for a fan. Background technique [0002] In the traditional small and medium-sized wind turbines, the usual treatment method for high wind shutdown protection is to use mechanical friction braking. Energy storage, causing this kind of direct braking to produce a considerable impact, making it inevitable that the friction material of the brake will be overheated, over-wear and other brake failure problems. After a long time, the key components such as the fan blade shaft and the motor shaft Produce fatigue. Contents of the invention [0003] Therefore, it would be beneficial for the present invention to provide a wind turbine interlock shutdown device that can reduce the ability of the impeller to capture wind energy by changing the pitch first, and then brake the main ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02F03D9/25
CPCF03D7/0224F03D7/0248F03D7/0268Y02E10/72
Inventor 鲁中间刘光双贺琦周彦高
Owner 青岛安华新元风能股份有限公司
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