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Blade damping device for wind power generator

A technology of wind turbines and shock absorbers, which is applied in the control of wind turbines, wind turbines, wind energy power generation, etc., can solve the problems of low safety, blade damage, and large economic losses, and achieves a safe and efficient way to avoid blade damage and ensure safety. Effect

Pending Publication Date: 2019-01-25
HUANENG CLEAN ENERGY RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In wind power generation, due to the erratic wind speed in nature, in the case of strong winds, the blades are blown by the wind force. In the state of no shock absorption, the blades will be damaged, the economic loss is large, and the safety is low.

Method used

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  • Blade damping device for wind power generator

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing and specific embodiment, the present invention is explained in detail:

[0030] Such as figure 1 As shown, the present invention includes a sleeve 1 and a rotating shaft 2. The sleeve 1 is sleeved with a rotating shaft 2. The sleeve 1 can slide axially along the rotating shaft 2. One end of the rotating shaft 2 passes through the sleeve 1 and is fixedly connected with a stopper. Block 4, the rotating shaft 2 at the side end of the block 4 is covered with a second retaining ring 3, and the side end of the second retaining ring 3 is connected to one end of the sleeve 1; the other end of the rotating shaft 2 passes through the sleeve 1 in turn. Pass the limit plate 23 , the support plate 14 and the first turntable 16 . The section of the rotating shaft 2 between the limiting plate 23 and the stopper 4 is square, and the rest are circular sections. The inside of the sleeve 1 is also a square section matching the square section...

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Abstract

The invention discloses a blade damping device for a wind power generator. The blade damping device comprises a limiting plate, a sliding rod, a fixed block and a sleeve. The sleeve is used for connecting a blade of the wind power generator, and the blade root is fixed on the sleeve. The sleeve sleeves one end of a rotating shaft of the wind power generator and can slide along the axial directionof the rotating shaft. The limiting plate is fixed on the rotating shaft, one end of the sliding rod is connected with the sleeve, and the other end penetrates the limiting plate to be connected withthe fixed block. A first elastic member is disposed between the limiting plate and the sleeve, and a second elastic member is disposed between the fixed block and the limiting plate. Under the windy condition, high wind blows the blade and applies axial force to the blade, so that a spring between the limiting plate and a baffle is squeezed, a spring between the fixed block and the limiting plateis stretched, the damping and buffering functions can be achieved effectively, economic loss caused by damage to the blade caused by the high wind is avoided, and the safety is ensured.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a blade damping device of a wind power generator. Background technique [0002] In today's global background of increasing shortage of non-renewable energy, rapid climate change, and deteriorating environment, wind energy as renewable and green energy has attracted great attention from all countries, and it will also be the main direction of my country's current new energy utilization. In wind power generation, due to the erratic wind speed in nature, in the case of strong wind, the blades are blown by the wind force. In the state of no shock absorption, the blades will be damaged, the economic loss is large, and the safety is low. Contents of the invention [0003] Aiming at the problems of the prior art, the present invention provides a blade damping device of a wind power generator, the purpose of which is to reduce the vibration of the blades through the dampi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCF03D7/0296Y02E10/72
Inventor 刘鑫郑清瀚吴嵩松史绍平马强张管武闫姝陈新明郭雨桐
Owner HUANENG CLEAN ENERGY RES INST
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