Horizontal axis draught fan with small blades capable of periodically swinging

Abstract

The invention discloses a horizontal axis draught fan with small blades capable of periodically swinging. A tower frame, a hub, big blades, the small blades, a screw shaft, a chain, an upper chain wheel, a lower chain wheel, a hand wheel, long cylinder pin rods, connecting rods, sliding rods, sliding sleeves, L-shaped crank rods, movable gears, a fixed gear, a sliding sleeve supporting ring and abracket are included. Under the action of wind, the big blades drive the hub to do the rotation movement, the three movable gears can be driven to do the planet movement around the fixed gear throughrotation of the hub, and accordingly a crank and rocker mechanism is composed of the big blades, the L-shaped crank rods, the connecting rods and the small blades. The small blades are driven to periodically swing through the plane movement of the connecting rods, accordingly, the airflow speed can be effectively controlled, and the wind energy conversion efficiency is improved. On the other hand,through changing of the positions of sliding blocks on L-shaped cranks, the small blade swinging angle can be adjusted, the structure is scientific, operation is convenient, and the horizontal axis draught fan is worthy of popularization.

Description

technical field [0001] The invention belongs to the technical field of wind power design, in particular to a horizontal-axis fan with small blades that can swing periodically. Background technique [0002] As the country continues to increase support for the development of clean energy, wind energy, as a clean and renewable energy, has attracted more and more attention from all over the world. And it is inexhaustible and inexhaustible. For coastal islands, grasslands, pastoral areas, mountainous and plateau areas that lack water, fuel, and inconvenient transportation, the use of wind power generation according to local conditions is very suitable and promising. [0003] Currently, a wind power generation system involves a technology for generating electricity by utilizing wind power into rotational force, and is a system that converts wind energy into mechanical energy and drives a generator to generate power. Such wind power generation systems are generally classified int...

AI Technical Summary

Problems solved by technology

However, in the actual wind energy utilization process, there are problems such as the utilization rate is less than 10%, and the wind speed cannot be controlled; the existing wind turbines need to be improved

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