CN201753666U

CN201753666U - Downwind wind generator with swivelling angle

Info

Publication number: CN201753666U
Application number: CN201020508459XU
Authority: CN
Inventors: 何利明; 石军; 张起
Original assignee: Huangshi Huake New Energy Science & Technology Co Ltd
Current assignee: Huangshi Huake New Energy Science & Technology Co Ltd
Priority date: 2010-08-26
Filing date: 2010-08-26
Publication date: 2011-03-02
Anticipated expiration: 2020-08-26

Abstract

A downwind wind generator with a swivelling angle comprises the following components: a generator (3), a swivelling member (4) and a vertical shaft (5), which are successively connected. The downwind wind generator furthermore comprises a hub (2) with a swivelling angle, which is connected with a rotating shaft of the generator (3). The hub (2) with swivelling angle is provided with blades (1). The swivelling included angle between a blade connection plate plane C and an air wheel rotation plane B is 6-12 DEG. The downwind wind generator with swivelling angle has the following advantages: simple and compact structure, capacity of realizing counteraction of the wind pressure of wind wheel with a centrifugal force generated by the self rotation of the blades, greatly reduced load which is actually bear by the blades because of the counteraction of two action forces, and obtainment of safe and reliable operation of middle and small size wind generator.

Description

Following wind direction is taken back the corner wind-driven generator

Technical field

The utility model relates to technical field of wind power generation, and a kind of specifically wind direction is down taken back the corner wind-driven generator.

Background technique

Therefore wind-driven generator is because environment of applications is comparatively abominable, and the not only generating that will aspire for stability also will face the threat of hurricane, fitful wind, designs particularly necessity of a kind of simple and easy wind-driven generator that reliably can the cope with bad environment can resist strong wind especially.Because the security threat in the wind-driven generator work mainly comes under the high wind speed the blast that wind turbines rotor produced, and therefore overcomes the load of blast, effectively resists this load, become the wind-driven generator whether can be in the key of trouble free service under the strong wind.

The model utility content

Thereby the following wind direction that the purpose of this utility model a kind of simple and easy load reliable, that can overcome blast that is design is resisted strong wind is taken back the corner wind-driven generator.

Wind direction is taken back the corner wind-driven generator under the utility model, comprise: generator 3, solid of rotation 4 and vertical shaft 5 link to each other successively, what link to each other with the rotating shaft of generator 3 in addition takes back corner hub body 2, take back corner hub body 2 and be provided with fan blade 1, the revolution angle α of described fan blade connecting plate plane C and wind wheel rotation horizontal plane B is 6 °～12 °.

Wind direction is taken back the advantage of corner wind-driven generator and is under the utility model: simple in structure, compact, can realize that the centrifugal force that wind wheel blast and fan blade self rotation is produced offsets, the actual load of bearing of blade reaches the purpose that makes middle-size and small-size wind-driven generator safe and reliable because of the counteracting of two kinds of active forces significantly reduces.

Description of drawings

Fig. 1 takes back the structural representation of corner wind-driven generator for following wind direction;

Fig. 2 a, b, c are for taking back corner hub body three-view diagram;

Among the figure: 1, fan blade, 2, take back the corner hub body, 3, generator, 4, solid of rotation, 5, vertical shaft; A, wind wheel axis of rotation, B, wind wheel rotation horizontal plane, C, fan blade connecting plate plane, the centrifugal force that produces when F, wind wheel rotation, Fv, blast.

Embodiment

As shown in Figure 1, three fan blades 1 are installed on to be taken back on the corner hub body 2, takes back corner hub body 2 and is connected with generator 3, and generator 3 is connected with solid of rotation 4, and solid of rotation 4 can be around vertical shaft 5 rotations.The centrifugal force that F produces when being the wind wheel rotation, Fv is a blast.

As shown in Figure 2, A is the wind wheel axis of rotation, B is a wind wheel rotation horizontal plane, C is fan blade connecting plate plane, for taking back corner hub body 2 the relative wind wheel rotation of fan blade connecting plate plane C horizontal plane B is provided with angle [alpha], blast Fv increases when wind speed increases, the load that this moment, wind wheel bore increases, fan blade 1 is formed moment of flexure, and because the gravity of blade 1 self can produce centrifugal force F under high speed rotating, when wind speed big more, wind speed round is fast more, and therefore in the running of blower fan, the most of load of Fv and F offsets, at this moment, blade 1 actual load of bearing is very little because of the counteracting of two kinds of active forces, and therefore under the high wind speed environment, blower fan can remain safe operation.

Claims

1. a following wind direction is taken back the corner wind-driven generator, comprise: generator (3), solid of rotation (4) and vertical shaft (5) link to each other successively, it is characterized in that: what link to each other with the rotating shaft of generator (3) in addition takes back corner hub body (2), take back corner hub body (2) and be provided with fan blade (1), the revolution angle α of described fan blade connecting plate plane C and wind wheel rotation horizontal plane B is 6 °～12 °.