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Windmill wind blade with multiple blades on outer ring

A technology of windmills and outer rings, applied to wind engines at right angles to the wind direction, wind engines, greenhouse gas reduction, etc., can solve problems such as low efficiency, poor aerodynamics, and small wind-receiving area of ​​blades

Inactive Publication Date: 2011-11-09
吕元林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing windmills are three-leaf wind blades, and its disadvantages are that the blades of the wind blades are small, the wind-receiving area of ​​the blades is small, the response to the airflow is slow, the aerodynamic performance is poor, the ability to absorb and convert wind energy is poor, and the efficiency is low

Method used

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  • Windmill wind blade with multiple blades on outer ring
  • Windmill wind blade with multiple blades on outer ring
  • Windmill wind blade with multiple blades on outer ring

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Embodiment Construction

[0013] figure 1 It is a schematic structural diagram of the present invention, figure 2 It is a schematic structural diagram of the present invention (from figure 1 Middle A looks), the present invention is made up of windmill hub 1, radial skeleton pipe 3, annular skeleton ring 2 and the main and auxiliary blades 5 and 6 groups of the inner and outer circles of annular skeleton circle, and radial skeleton pipe 3 is used for The windmill hub 1 is connected with the ring-shaped skeleton ring 2, and the ring-shaped skeleton ring 2 has a ring structure.

[0014] The interior of the annular skeleton ring 2 is set as a cavity 4, and the cut surface of the cavity 4 is a quadrilateral, wherein the angle between the bottom side 14 and the long hypotenuse 15 is 25°-30°, and the angle between the long hypotenuse 15 and the upper short hypotenuse 16 is 70° °~75°, the cavity 4 is provided with a blade shaft seat 7, a thrust bearing 9, a torsion spring 10, a chuck 13, a chuck 12, etc. t...

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Abstract

The invention discloses a windmill wind blade with multiple blades on an outer ring, which has a large wind-engaging area, high pneumatic performance and high conversion efficiency of wind energy and can regulate the wind-engaging area of the wind blade automatically. The wind blade comprises a windmill hub (1), a spoke-shaped skeleton pipe (3), an annular skeleton ring (2) and a main blade group on the outer ring of the annular skeleton ring, wherein the spoke-shaped skeleton pipe (3) is connected between the windmill hub (1) and the annular skeleton ring (2); a cavity (4) is formed inside the annular skeleton ring (2); and a blade shaft base (7), a thrust bearing (9) and a torsional spring (10) are arranged in the cavity (4) and are used for mounting the main blade group outside the annular skeleton ring.

Description

technical field [0001] The invention relates to a windmill wind slurry device. Background technique [0002] Windmills are widely used in fields such as utilizing wind energy to generate electricity. Most of the existing windmills are three-leaf wind blades, which have the disadvantages of few blades, small wind-receiving area, slow response to air flow, poor aerodynamic performance, poor ability to absorb and convert wind energy, and low efficiency. Contents of the invention [0003] In order to overcome the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a wind turbine with multiple blades on the outer ring. It has a large wind-receiving area, strong aerodynamics, high conversion efficiency to wind energy, and can automatically adjust the wind-receiving area of ​​the wind slurry. [0004] The basic idea that the present invention adopts technical solution is: [0005] The invention comprises a windmil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D3/00F03D3/06
CPCY02E10/74
Inventor 吕元林
Owner 吕元林
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