Full-blade-tip wind driven generator

A technology for wind turbines and generators, applied in wind turbine components, wind turbines, wind turbine combinations, etc., can solve the problems of difficult implementation, low blade efficiency, poor mechanical strength, etc. Service life, the effect of increasing the blade tip area

Active Publication Date: 2013-06-12
戚永维
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a full-blade wind power generator, which fundamentally solves the problems of low blade efficiency, poor mechanical strength, and difficult implementation in existing wind power generators. The design

Method used

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  • Full-blade-tip wind driven generator
  • Full-blade-tip wind driven generator
  • Full-blade-tip wind driven generator

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Embodiment Construction

[0019] according to Figure 1~3 The specific structure of the present invention will be described in detail. The full-blade wind power generator includes a yaw platform 3 fixed on the tower 1, and assembled on the yaw platform 3 is a horizontal shaft supported by a frame 7, a bearing seat 9, a hollow rotating shaft 8 and stay cables 13 The impeller group, generators and hydraulic pipelines assembled on the yaw platform 3 and other components.

[0020] Wherein the yaw platform 3 is supported by at least three towers 1 . The specific implementation method is: insert the first section of each tower tube 1 into the reserved hole of the yaw platform 3, and fix it with the ground or horizontal foundation. After a crane (not shown in the figure) is installed on the inner wall of the tower tube 1 to help lift up, the frame 7 is hoisted and the horizontal axis impeller group is assembled. With the support of multiple towers 1, the yaw platform 3 and above devices are lifted to the t...

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Abstract

The invention discloses a full-blade-tip wind driven generator, which is used for solving the problems of low blade efficiency, poor mechanical strength, high implementing difficulty and the like existing in the conventional wind driven generator. The full-blade-tip wind driven generator comprises a yawing platform, a horizontal shaft impeller unit, a generator and a hydraulic pipeline, wherein the yawing platform is fixed on towers; and the horizontal shaft impeller unit is assembled on the yawing platform. Technical key points are that the horizontal shaft impeller unit comprises a wheel body, a blade assembled on the outer rim of the wheel body through a blade variable-pitch device, and a transmission braking integral ring fixed on the periphery of the wheel body; the wheel body and a hollow revolving shaft are connected together by using a stay cable support; the hinged end of the blade variable-pitch device is fixed at the bottom end of the blade; a hydraulic cylinder is arranged at the movable support end of the blade; pitch variation of the blade is finished through the extension and contraction of a piston rod of the hydraulic cylinder; and main brake clamps are distributed on both sides of a main brake disc of the hollow revolving shaft. The full-blade-tip wind driven generator has the advantages of reasonable design, simple blade structure, complete hydraulic yawing and pitch varying functions, uniform stress on a full blade tip, convenience in installing and adjusting, using safety and reliability, and prolonging of the service life of an entire machine.

Description

technical field [0001] The invention relates to a wind power generating device, in particular to a full-blade wind power generator in which all blades are arranged on an outer rim supported by a triangular truss-type support frame, and is suitable for various wind power generating sites. Background technique [0002] At present, most of the widely used large-scale horizontal-axis wind power generation devices powered by wind energy adopt a structure in which three blades are arranged on a traditional hub. This kind of wind power device has few blades, so the force of the wind on the impeller as a whole is small, especially the root, which accounts for about a quarter of the overall length of the blade. In order to ensure the strength, a cylindrical structure is adopted, and the aerodynamic performance is zero; Two-quarters of the length is the middle part, because of its location, for the same unit area, the torque generated is not as good as the tip of the blade; while the ...

Claims

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Application Information

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IPC IPC(8): F03D9/00F03D1/06F03D7/02F03D11/00
CPCF03D3/002F03D7/06Y02E10/72Y02E10/74
Inventor 戚永维
Owner 戚永维
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