CN201103511Y

CN201103511Y - Variable oar wind wheel

Info

Publication number: CN201103511Y
Application number: CNU2007200303917U
Authority: CN
Inventors: 陈亦栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-15
Filing date: 2007-11-15
Publication date: 2008-08-20
Anticipated expiration: 2017-11-15

Abstract

The utility model relates to a wind power generation device, in particular to a propeller-variable wind wheel, which comprises a main shaft and a blade arranged on the top of the main shaft; the wind wheel is characterized in that the main shaft is a hollow shaft the front end of which is fixedly connected with a wheel hub; more than two bearing chocks are arranged on the wheel hub in a uniform angle; a blade shank is arranged in the bearing chocks; the blade shank is cylindrical; the blade is fixedly arranged on the top end of the blade shank; a hemispheric windward cover is arranged on the wheel hub. The propeller-variable wind wheel of the utility model can be well adapted to the need of the propeller-variable wind turbine generator and has simple structure as well as strong practicality. The blade with special structure and shape can reduce weight, improve structure strength and improve efficiency of wind energy.

Description

A kind of variable oar wind wheel

Technical field

The utility model relates to a kind of wind generating unit, is a kind of variable oar wind wheel specifically.

Background technique

Utilizing natural wind to carry out wind-power electricity generation is human making full use of renewable energy sources.Have easy for installation flexible, pollution-free, the protection environment characteristics, more and more be subject to people's attention.But also there are suddenly big or suddenly small, the unstable characteristics of wind speed in natural wind simultaneously, and too big wind-force not only can not finely generate electricity, and also is easy to damage blower fan, causes unnecessary loss.Therefore, in the design wind power plant, must consider to tackle the method for strong wind.In the prior art generator reply strong wind method can be divided into two classes: the first kind is the lateral deviation arrangements for speed regulation, and promptly the time wind wheel that occurs at strong wind departs from prevailing wind direction, and is to little wind-powered electricity generation machine speed governing shakiness, slow in one's movements to the speed governing of strong wind motor.Second class is to become the oar regulable speed type, and the wind-driven generator that becomes the oar regulable speed type needs the wind wheel of particular design, but existing various wind wheels can not adapt to the needs of paddle changing wind power generator well.

Summary of the invention

But the purpose of this utility model provides a kind of variable oar wind wheel of simple in structure, the needs that can adapt to paddle changing wind power generator well.

For achieving the above object, the utility model adopts following technological scheme:

A kind of variable oar wind wheel described in the utility model comprises main shaft, is installed in the blade on main shaft top, it is characterized in that: main shaft is a hollow shaft, the fixedly connected wheel hub of its front end, bearing support more than two is installed to equal angles on the wheel hub, blade shank is installed in the bearing support, blade shank is cylindric, and blade is fixedly mounted on the blade shank; The hemispheric cover that facings the wind is installed on the wheel hub.

Blade comprises the girder of tapered tube shape, with girder rib connected vertically, be coated on the blade of rib outside, rib is joined by the circular-arc rib two ends of two equidirectional different curvature and constitutes, a plurality of ribs are fixedly connected on the girder.

After adopting technique scheme, but variable oar wind wheel described in the utility model can adapt to the requirement of paddle changing wind power generator well, and is simple in structure, practical.Special blade structure and shape have alleviated weight, have improved structural strength, have improved wind energy efficiency.

Description of drawings

Fig. 1 is an embodiment's of the utility model a structural representation;

Fig. 2 is the right elevation of Fig. 1;

Fig. 3 is the structural representation of blade.

Embodiment

As shown in Figure 1 and Figure 2, a kind of variable oar wind wheel described in the utility model comprises main shaft 2, is installed in the blade 3 on main shaft 2 tops.Main shaft 2 is a hollow shaft, the fixedly connected wheel hub 6 of its front end, and the center of wheel hub 6 has through hole, communicates with the center of main shaft 2.Three bearing support 7 is installed to equal angles on the wheel hub 6, blade shank 8 is installed in the bearing support 7, blade shank 8 is cylindric, and blade 3 is fixedly mounted on the top of blade shank 8; Be equipped with on the wheel hub 6 and hemisphericly cover 16 down with the wind.

As shown in Figure 3, described blade 3 comprises the girder 31 of tapered tube shape, with girder 31 ribs 32 connected vertically, be coated on the blade 33 of rib 32 outsides, rib 32 is joined by the circular-arc rib two ends of two equidirectional different curvature and constitutes, a plurality of ribs 32 are fixedly connected on the girder 31, form the basic framework of blade 3, blade 33 is coated on the outside.

Claims

1, a kind of variable oar wind wheel, comprise main shaft (2), be installed in the blade (3) on main shaft (2) top, it is characterized in that: main shaft (2) is a hollow shaft, the fixedly connected wheel hub of its front end (6), wheel hub (6) is equipped with the bearing support (7) more than two with going up equal angles, blade shank (8) is installed in the bearing support (7), and blade shank (8) is cylindric, and blade (3) is fixedly mounted on the blade shank (8); The hemispheric cover (16) that facings the wind is installed on the wheel hub (6).

2, a kind of variable oar wind wheel according to claim 1, it is characterized in that: blade (3) comprises the girder (31) of tapered tube shape, with girder (31) rib connected vertically (32), be coated on the blade (33) of rib (32) outside, rib (32) is joined by the circular-arc rib two ends of two equidirectional different curvature and constitutes, and a plurality of ribs (32) are fixedly connected on the girder (31).