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Wind-driven fan blade pitch adjusting device

A regulating device and electric fan technology, applied in wind power generation, wind engine, wind engine control, etc., can solve the problem of low power generation efficiency, achieve simple structure, protect fan blades, and improve power generation efficiency

Pending Publication Date: 2021-11-23
HUANENG CLEAN ENERGY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the present invention provides a wind power fan blade pitch adjustment device to solve the problem of low power generation efficiency caused by the non-adjustable fan blade pitch of existing wind power generation equipment

Method used

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  • Wind-driven fan blade pitch adjusting device

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

[0025] refer to figure 1 , image 3 and Figure 4 , a wind fan blade pitch adjustment device, comprising a rotating base 1, the outer wall of the rotating base 1 is provided with a fan blade 4, and a first flange 401 and an annular table 101 are provided at the connection between the rotating base 1 and the fan blade 4; the first method The flange 401 is fixedly connected to the inner ring of the slewing bearing 301 , the outer ring of the slewing bearing 301 is fixedly connected to the table surface of the annular table 101 , the inner ring of the slewing bearing 301 is provided with a turntable 302 at one end away from the first flange 4...

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Abstract

The invention discloses a wind-driven fan blade pitch adjusting device, and relates to the field of wind power generation equipment. The aim is to solve the problem of low power generation efficiency caused by non-adjustable fan blade pitch of the existing wind power generation equipment, the device comprises a rotating seat, fan blades are arranged on the outer wall of the rotating seat, a pitch changing mechanism used for controlling pitch changing of the fan blades is arranged in the rotating seat, the pitch changing mechanism comprises a rotary bearing, an annular table is arranged on the outer wall of the rotating seat, an outer ring of the rotary bearing is fixedly connected with the table top of the annular table, a first flange is arranged at the root of each fan blade, the first flange is fixedly connected with an inner ring of the rotary bearing, a rotary table is arranged at the end, away from the first flange, of the inner ring of the rotary bearing, and one end of the rotary table extends into the rotating seat. The device is novel in structure, and the problem that the power generation efficiency is low due to the fact that the fan blade pitch of the existing wind power generation equipment cannot be adjusted is effectively solved.

Description

technical field [0001] The invention belongs to the field of wind power generation, and in particular relates to a wind power fan blade pitch adjusting device. Background technique [0002] Wind power generation is a kind of clean energy. Wind power generation equipment is often installed in areas where there is wind all year round and the wind speed is relatively stable. The principle of wind power generation equipment is to drive the fan blades to rotate through the wind, and then drive the generator through the rotating base. To generate electricity, the blades of the wind power generation equipment have a certain angle of attack relative to the wind direction. The angle of attack can also be called the pitch. When the wind blows on the inclined surface of the fan blade, the flow direction is changed, thereby generating a component force that pushes the fan blade to rotate. , the larger the angle of attack, the greater the component force generated, but with the continuou...

Claims

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Application Information

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IPC IPC(8): F03D7/02
CPCF03D7/0224Y02E10/72
Inventor 邵振州郭辰张立英张国张庆李家川李芊程瑜李腾吕贝
Owner HUANENG CLEAN ENERGY RES INST
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