Blade locating structure of small-sized wind power generator

Abstract

The invention relates to a blade locating structure of a small-sized wind power generator, belonging to the technical field of wind power generation. The blade locating structure of the small-sized wind power generator comprises a blade and a rotary flange disc, wherein each blade installation surface of the rotary flange disc is a curved surface which has a same curve with the back surface of the blade. The invention ensures high-speed running of the small-sized wind power generator, reduces fatigue of blade materials due to little jittering of the blade, prolongs the service life of the wind power generator and has high wind power efficiency and high safety.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a blade positioning structure of a wind power generator. Background technique [0002] During the packaging and transportation of small wind turbines, the blades and body cannot be installed properly due to their shape, and the blades can only be installed on site, and because of their low value, it is impossible to send high-level engineering and technical personnel to each site to guide the installation. It should only be installed by ordinary personnel. At present, there is a problem of installation accuracy between blades and rotating flanges of small wind turbines, which are usually positioned through screw holes, but due to drilling accuracy and process costs, it is generally difficult to meet the requirements for use. The generator will experience severe blade vibration during high-speed operation. Long-term vibration of the blade will accelerate...

AI Technical Summary

Problems solved by technology

[0002] During the packaging and transportation of small wind turbines, the blades and body cannot be installed properly due to their shape, and the blades can only be installed on site, and because of their low value, it is impossible to send high-level engineering and technical personnel to each site to guide the installation. Can only be installed by normal personnel

At present, there is a problem of installation accuracy between blades and rotating flanges of small wind turbines, which are usually positioned through screw holes, but due to drilling accuracy and process costs, it is generally difficult to meet the requirements for use. The generator will experience severe blade vibration during high-speed operation. Long-term vibration of the blade will accelerate the fatigue of the blade material, and material fatigue will eventually lead to the breakage of the blade

The vibration of the blades will also cause damage to the generator bearings, reduce the service life of the bearings, cause damage to the stator and rotor, and cause loosening of all fastening screws, shorten the service life of the wind turbine, and more importantly, reduce the utilization of wind energy. coefficient

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