Adjustable speed limiting device for wind power generator

Abstract

The invention relates to the technical field of wind power generators, in particular to an adjustable speed limiting device for a wind power generator. The speed limiting device comprises a mounting plate, wherein the mounting plate is arranged on the fan surface of a fan blade; one side of the mounting plate is movably connected with a movable plate through a hinge; a plurality of mobile mechanisms are arranged above the mounting plate at equal distances; movable blocks are arranged above the mobile mechanisms; the upper parts of the movable blocks are movably connected with a connecting rod;the other end of the connecting rod is connected with the movable plate and is positioned above the hinge; a fixed block is arranged on one side of the corresponding movable block and positioned above the mounting plate; one side of the corresponding fixed block and one side of the corresponding movable block are provided with plate bodies; the plate bodies are provided with through holes; a tension spring is arranged between the plate bodies; and hooks are arranged at the two ends of the tension spring and are respectively positioned on the through holes. The device disclosed by the invention has the advantages of simpleness, practicability and low cost; rotation of a power generator is limited, so that the aim of effectively protecting the power generator is fulfilled, the operation security of the wind power generator is improved, and the service life of the wind power generator is prolonged.

Description

technical field [0001] The invention relates to the technical field of wind power generators, in particular to an adjustable speed limiting device for wind power generators. Background technique [0002] In recent years, due to the rapid development of my country's economy and the promotion of the government's "power transmission to the countryside" project, small household wind turbines are being popularized at a relatively fast speed in pastures, mountainous areas, islands and other remote areas lacking electricity. Solve the problem of difficult electricity use in these areas. The above-mentioned power-shortage areas have a common feature, that is, they are rich in wind power resources, and the wind power generators used are basically between 500W and 2000W. Due to the relatively backward economy of the regions where wind power generators are used, users have higher requirements for the performance-price ratio of generators. That is to say, the generator should be durabl...

AI Technical Summary

Problems solved by technology

And this deceleration method often makes the generator windings heat up due to overload, and the heating will eventually burn out the motor windings. This situation has a certain impact on the service life of the wind turbine and its further promotion and use.

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