CN2615361Y

CN2615361Y - Speed regulator for wind motor

Info

Publication number: CN2615361Y
Application number: CNU032252056U
Authority: CN
Inventors: 梁昌勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-11
Filing date: 2003-04-11
Publication date: 2004-05-12
Anticipated expiration: 2013-04-11

Abstract

The utility model relates to a wind mill speed regulation device, comprising a vertical rod, a frame head rotationally arranged on the vertical rod, a wind wheel fixed on a rotation shaft of the frame head and a tail vane pole arranged on the rear part of the frame head, which is characterized in that a tail vane comprises a front tail vane and a rear tail vane and a pin shaft tilts rearward and laterally a certain degree. Comparing with the prior art, the utility model has the advantages of simple structure, fully utilizing wind energy, guaranteeing output power of a wind-driven generator approach near peak output power even in case of big wind, and the wind wheel can slowly deviate laterally in case of gust to reduce damage on the wind-driven generator.

Description

A kind of arrangements for speed regulation of wind energy conversion system

Technical field:

The utility model relates to a kind of arrangements for speed regulation of wind energy conversion system.

Background technique:

Its mode of speed regulation of existing small-sized wind power generator generally all adopts eccentric speed governing, the rotor shaft and the head gyration center that are wind-driven generator have an offset, when wind speed during greater than rating value, the blast that acts on the wind wheel promotes the inclined to one side side of wind wheel, angle of the also corresponding turnover of hinged tail vane, the wind wheel windward side is reduced, thereby reach the purpose of speed limit.But the problem that this scheme exists is: (1) is when wind speed reaches certain value, the output power of wind-driven generator descends along with the increase of wind speed, during to 90 ° of inclined to one side sides of wind wheel, the wind wheel plane of rotation is parallel with wind direction, power output is just very little, obviously, under the bigger situation of wind-force, can not make full use of wind energy.When (2) meeting fitful wind, wind wheel is side partially suddenly, impact bigger, fragile wind-driven generator.

Summary of the invention:

Goal of the invention of the present utility model just provides a kind of simple in structure, can make full use of wind energy, even if under the situation of strong wind, can guarantee that also the output power of wind-driven generator is near maximum output, and, when meeting fitful wind, wind wheel can be slowly side partially, to reduce arrangements for speed regulation to the wind energy conversion system of the infringement of wind-driven generator.

The utility model is to realize like this, comprise vertical rod, rotation is installed in the head in the vertical rod, wind wheel, the head afterbody that is fixed in the head rotating shaft is provided with the empennage bar, the afterbody of empennage bar has empennage, wherein, the vertical rod axis that the axis of head rotating shaft and head rotate along vertical rod departs from mutually, its specialization is that empennage is made up of preceding empennage and back empennage two-part, preceding empennage is fixedly connected on empennage bar afterbody, the end of empennage before back empennage is hinged on by bearing pin, bearing pin is backward with to laterally inclined certain angle, and promptly bearing pin spatially has back rake angle and side drift angle.During work, when wind-force is strong, the eccentric wind wheel of installing produces moment and makes the inclined to one side side of wind wheel, at this moment, back empennage relatively rotates along bearing pin, in rotating process, back empennage is elevated gradually, in case when wind speed reduced to certain numerical value, the back empennage that is elevated can return to original position again under the effect of gravity, force wind wheel to continue the running of facining the wind.

Because preceding empennage and head are connected as a single entity, when the inclined to one side side of wind wheel, preceding empennage can and then rotate, and empennage direction and wind direction are inconsistent before must making, and the inclined to one side side of wind wheel also just has certain cushion effect, so when meeting fitful wind, the inclined to one side side process of wind wheel is more steady, impacts little.When wind-force is strong, can limit the angle of the inclined to one side side of wind wheel by the area of empennage before changing, the power output in the time of also just can guaranteeing than strong wind makes full use of wind energy.

The utility model has the advantages that:

Under the bigger situation of 1 wind-force, also can make full use of wind energy.

During 2 chance fitful winds, the inclined to one side side process of wind wheel is more steady, impacts little.

3 empennages are made up of preceding empennage and back empennage two-part, to the large size tail plate, and be more convenient for transportation and packing.

4 adopt the hinging structure that back rake angle and side drift angle are arranged, and utilize back tail plate gravity return, and simple in structure, cost is low.

Description of drawings:

Fig. 1 is the plan view of the utility model structural representation.

Fig. 2 is the plan view of the utility model structural representation.

Fig. 3 is front and back tail structure figure of the present utility model

Embodiment:

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:

As Fig. 1, shown in Figure 2, the utility model is by vertical rod 6, rotation is installed in the head 4 in the vertical rod 6, be fixed on the wind wheel 5 in head 4 rotating shafts, be installed in the empennage bar 3 of head 4 afterbodys, the empennage that is fixedly mounted on empennage bar 3 afterbodys constitutes, wherein, the vertical rod axis that the axis of head 4 rotating shafts and head 4 rotate along vertical rod 6 departs from mutually, its specialization is: empennage is made up of preceding empennage 2 and back empennage 1 two-part, preceding empennage 2 is fixedly connected on empennage bar 3 afterbodys, the end of empennage 2 before back empennage 1 is hinged on by bearing pin, because preceding empennage 2 will bear the gravity of back empennage 1, empennage 2 will have certain intensity before the institute.

As shown in Figure 3, the bearing pin of hinged two empennages has back rake angle and side drift angle, when wind-force is strong, eccentric wind wheel 5 inclined to one side sides of installing, at this moment, back empennage 1 relatively rotates along bearing pin 7, in rotating process, back tail plate 1 can be elevated gradually, in case when wind speed reduces to certain numerical value, the back empennage 1 that is elevated can return to original position again under the effect of gravity, force wind wheel to continue the running of facining the wind.

When the inclined to one side side of wind wheel 5, preceding empennage 2 can and then rotate, and empennage 2 directions are inconsistent with wind direction before must making, and the inclined to one side side of wind wheel 5 also just has certain cushion effect, so during the chance fitful wind, the inclined to one side side process of wind wheel is more steady, impacts little.When wind-force is strong, because the effect of preceding empennage is arranged, can guarantee the angle of the inclined to one side side of restriction wind wheel in adapting to wind speed range, the power output when also just having guaranteed than strong wind can make full use of wind energy near maximum output.

Claims

The arrangements for speed regulation of 1 one kinds of wind energy conversion systems, comprise vertical rod, rotation is installed in the head in the vertical rod, wind wheel, the head afterbody that is fixed in the head rotating shaft is provided with the empennage bar, the afterbody of empennage bar has empennage, wherein, the vertical rod axis that the axis of head rotating shaft and head rotate along vertical rod departs from mutually, it is characterized in that empennage is made up of preceding empennage and back empennage two-part, preceding empennage is fixedly connected on empennage bar afterbody, the end of empennage before back empennage is hinged on by bearing pin, bearing pin is backward with to laterally inclined certain angle, and promptly bearing pin spatially has back rake angle and side drift angle.