CN2076613U

CN2076613U - Automatic speed-regulating wind wheel and revolving body

Info

Publication number: CN2076613U
Application number: CN90210487U
Authority: CN
Inventors: 杨家鹤
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-08
Filing date: 1990-05-08
Publication date: 1991-05-08

Abstract

The utility model discloses an automatic speed-regulating wind wheel and revolving body, relates to an automatic speed-regulating wind wheel, comprising a plurality of main parts which are oar blades, an oar handle, and a wheel shell. Torsion springs are used to fix the space between the oar blades and the wheel shell, and the oar blades can rotate corresponding to the wheel shell. The purpose of correcting velocity is achieved, because a windward angle is changed by the rotation of the oar blades. The speed-regulating wind wheel is reliable, and the damage of the wind wheel owing to strong wind can be avoided. Furthermore, the revolving body of the speed-regulating wind wheel is fixed by adopting the structure which is analogous to the front fork of an ordinary bicycle, the automatic speed-regulating wind wheel can flexibly rotate, and can effectively enhance the running ability and service life of a wind power electrical machine, and simultaneously, the speed-regulating wind wheel and revolving body has the advantages of simple structure, low cost, and convenient usage.

Description

Automatic speed-regulating wind wheel and revolving body

But the utility model is a kind of wind wheel and swivel gear thereof of automatic speed regulation.

In small-sized wind power generator; meeting high wind for the blade that overcomes wind wheel is easy to lose; improve the ability of the reliable running of generator; one cover speed control system can be set on wind wheel; when wind-force changes; can change the wind wheel angle that facings the wind, and then change the suffered active force of wind wheel, avoid destroying with protection wind wheel blade.Usually the speed control system that adopts mainly contains the wind wheel side and compiles speed governing, backstroke speed governing on the wind wheel, and wind wheel empennage slop regulation speed slightly reaches by centrifugal variation paddle apart from technology such as speed governing.In wind wheel lateral deviation speed control system, when wind wheel is met strong wind, produce lateral deviation, changed the angle of facining the wind of wind wheel, to reduce the active force of wind wheel blade windward, wind wheel is restored to the original state by the effect of extension spring when wind-force reduces.This speed control system, wind wheel amplitude of fluctuation move bigger, and the blade of wind wheel is easy to be fractureed when too drastic swing.Utilize backstroke speed governing on the wind wheel, when wind wheel is met strong wind, face upward, its angle of facining the wind is changed reach speed governing.It is to realize by extension spring or torsion spring equally that wind wheel recovers.Thereby, blade is fractureed also often because of the fierce upper and lower swing of wind wheel.In addition, in above-mentioned two kinds of speed control systems, because the together swing aloft of generator and wind wheel so the load that solid of rotation bears will be very big, makes the rotary structure complexity, cost is also very high.And empennage slightly ramp to carry out speed governing be to rely on the barge board active force to control the angle of empennage (wind rudder), to change the angle that facings the wind of wind wheel, realize control rate.It is complicated that but this device production and processing and installation are adjusted, and using effect is bad.Centrifugal variation paddle is that the strong centrifugal force that utilizes vehicle wheel rotational speed to increase to produce on the blade sheet makes outside the blade sheet and moves apart from speed governing, changes the blade angle that facings the wind, and reaches the control revolution.This speed regulating method is effective, and the blade sheet is not fragile yet, but the manufacturing process complexity of wind wheel, the cost of production height, and the frequent maintenance use of speed control system palpus is very not convenient.

The purpose of this utility model is a kind of simple in structure, speed governing of design automatic speed regulation wind wheel and swivel gear flexibly, and it can effectively avoid the wind wheel blade to lose, and improves the reliable operation ability and the working life of wind-driven generator.

The utility model is for realizing the automatic speed regulation of wind wheel, in comprising the wind wheel that blade, loom and hub are formed, design a rotary blade of relative hub, be fixed with the angle of facining the wind that can keep to obtain maximum moment when a torsion spring normally moves blade between blade and hub.When wind-force acts on the blade, to produce moment, make blade drive hub around its hub central shaft (alternator shaft) rotation by loom, the big more generation moment of wind-force is big more, wind wheel rotates also soon more, if wind the power on the blade side of acting on surpasses the static torsion of torsion spring, make it to drive the wind wheel rotation except that producing moment on the blade sheet, the elastic force that blade will overcome torsion spring is that axle rotates the angle of facining the wind that has promptly changed blade relative to hub with the loom, reduced the moment that produces on the blade, wind speed round is diminished, avoid crossing high wind wheel and damaged because of wind-force, and when diminishing as wind-force, because the elastic force of torsion spring makes blade return to original position, can obtain bigger running torque, quicken wind wheel and rotate, promptly the rotating speed of the utility model wind wheel can obtain adjusting automatically.

Fig. 1 is a structural drawing of the present utility model.Among the figure: 1, blade; 2, support; 3, loom; 4, torsion spring; 5, hub; 6, anti-moving nut; 7, pin.Support 2 is fixed on the blade 1, loom 3 is passed the central shaft hole of support 2, put torsion spring 4 fixing (welding or fastening) on hub 3 with screw, the other end of loom 3 is tightened the back with anti-moving nut 6 and is added pin 7 with anti-loosening, blade 1 is fixed on the support 2, can rotate around loom 3, blade and hub are separately fixed at the two ends of torsion spring 4, and blade is fixed on by torsion spring 4 and is on the position with the best angle that facings the wind, produce the active force that rotates for axle around loom 3 for making blade 1 face be subjected to wind power energy, the central shaft hole of support 2 is not fixed on the center line of blade 1, but is partial to an end, is the best to lean on blade one end 1/3 place.Can adorn two on the hub 5 and become 180 ° or three above-mentioned blade, the loom that are mutually 120 °, making it is that the center can reach static balancing with the hub axis, but promptly constitutes automatic speed regulation wind wheel of the present utility model.

Fig. 2 is an another kind of structural drawing of the present utility model.Same Fig. 1 of the meaning of 1～7 representative among the figure, 8 is the blade fixed plate.In wind wheel shown in Figure 2, blade 1 is fixed on the loom 3 by blade fixed plate 8, loom 3 is inserted in the central shaft hole that passes support 2 behind the torsion spring 4, screw on then and prevent moving nut 6 and add

7,1 of support 2 and blade link with torsion spring, and blade 1 can be rotated relative to support 2, support 2 is fixed on the hub 5.Other structure can constitute another kind of automatic speed regulation wind wheel of the present utility model by shown in Figure 1.

Automatic speed regulation wind wheel of the present utility model, since simple in structure and generator operation is steady, thereby the solid of rotation load is very little, can adopt the solid of rotation device of light and flexible.The solid of rotation of the utility model design is selected the structure of similar ordinary bicycle front fork for use, fork body internal riser is as solid of rotation support and center of rotation, be fixed with supporting plate that generator is installed and the support plate base that the wind rudder is installed on the outer sleeve, last sleeve pipe drives generator and freely rotates on internal riser.Fig. 3 is the concrete structure figure of solid of rotation.Among the figure, 9, have an externally threaded outer tube; 10, internal riser; 11,17, upper and lower shelves; 12,16, sand frame; 13,15, sand bowl; 14, solid of rotation outer sleeve; 18, anti-loose ring; 19, locking cap; 20 generator supporting plates; 21, wind rudder support plate base.In solid of rotation shown in Figure 3, internal riser 10 inserts in the outer tube 9 and welds together, lower gear 11 is enclosed within on the internal riser 10, and be fixed on the outer tube 9,

sand bowl

13,15 firmly is contained in solid of rotation outer sleeve 14 endoporus two ends respectively, add in the

sand frame

12,16 behind the steel ball to be respectively charged in the

sand bowl

13,15 and then outer sleeve 14 is enclosed within on the internal riser 10 with drier oil, to perform again and 17 be screwed on the internal riser 10 and compress steel ball in the sand frame 16, twist anti-loose ring 18 and locking cap 19, solid of rotation outer sleeve 14 can freely be rotated around internal riser 10.Generator supporting plate 20 is fixed on the outer sleeve 14, and the wind rudder is fixed on the wind rudder support plate base 21, promptly forms solid of rotation of the present utility model.

During use, generator is fixed on the solid of rotation supporting plate 20 shown in Figure 3, installation diagram 1 or wind wheel shown in Figure 2 on the alternator shaft, then the utility model automatic speed regulation wind wheel is met wind and can normally be moved commentaries on classics.

Wind wheel shown in Fig. 1,2,3 and time wheel body can be 3 examples of the present utility model.The utility model has the advantages that: 1, with the position of torsion spring control blade, blade is rotated flexibly by the high wind effect, can effectively change stressed size, avoids wind wheel to be damaged; 2, wind wheel structure is simple, and cost is low.3, solid of rotation rotates flexibly, can improve effectively generator operation ability and working life.

Claims

1, a kind of blade, loom and hub of comprising formed and the rotary speed governing wind wheel of the relative hub of blade, it is characterized in that fixing with torsion spring between blade and hub, the elastic force that the static torsion blade that the suffered power in blade side surpasses torsion spring will overcome torsion spring is that axle rotates relative to hub with the loom.

2,, it is characterized in that blade 1 is fixed with support 2, and the central shaft hole of support 2 is partial to an end, being the best by blade one end 1/3 place according to the described speed governing wind wheel of claim 1.

3, a kind of solid of rotation of fixedly wind wheel generator, it is characterized in that its employing structure similar to the ordinary bicycle front fork, comprise internal riser as solid of rotation support and center of rotation, be fixed with the outer sleeve of the support plate base of supporting plate that generator is installed and wind rudder, outer sleeve drives generator and freely rotates on internal riser.