CN2556381Y

CN2556381Y - Coaxial reverse double-rotor with-mill generator

Info

Publication number: CN2556381Y
Application number: CN02235745U
Authority: CN
Inventors: 徐鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-27
Filing date: 2002-05-27
Publication date: 2003-06-18
Anticipated expiration: 2012-05-27

Abstract

The utility model discloses a coaxial and converse dual-rotor wind-driven generator, consisting of a case, a rotor, a rotor shaft, a bearing and a driver unit. The rotor consists of an inner rotor and an outer rotor; the outer rotor is fixed on an outer rotor shaft by a front clamp plate of the outer rotor, a back clamp plate of the outer rotor, a bolt and a pin; the outer rotor shaft is a hollow shaft and arranged in a generator body through the bearing. The inner rotor is fixed on the inner rotor shaft and arranged in the hollow outer rotor shaft through the bearing and a copper sheathing. A group of impellers and vanes, which rotate clockwise after a torsion angle is stressed, are arranged on the inner rotor shaft; the group of impellers and vanes, which rotate counter clockwise after the torsion angle is stressed, are arranged on the outer rotor shaft. When rotating clockwise, the inner rotor generates a counterforce against the outer rotor to make the outer rotor rotate counter clockwise, thereby fully utilizing the counter force generated by the inner rotor to improve an efficiency of turning a mechanical energy into an electric energy and save the energy.

Description

Coaxial reversing double-rotor wind-driven generator

Technical field

The utility model relates to a kind of wind-driven generator, refers to a kind of coaxial reverse two wind-driven generators of transferring to especially.

Background technique

Traditional generator is to be made of rotor and stator two large divisions, and rotor rotates in stator, produces rotating magnetic field, and correspondingly the stator cutting magnetic line produces electromotive force, and mechanical energy is transformed into electric energy.With large-scale steam turbine generator and hydraulic turbine generator is example, and generator amature is made up of rotor iron core and rotor coil; Rotor iron core has good magnetic conductivity, by behind the field current, can form generator field at rotor coil; Generator unit stator is made up of stator iron core and staor winding, in order to produce induction electromotive force by stator current.When the rotor of generator rotated, according to electromagnetic induction principle, relative movement was done in conductor and magnetic field, during the conductor cutting magnetic line, then produces induction electromotive force on conductor.Rotor is exactly magnetic field, staor winding is exactly a conductor, rotor rotates in stator, the magnetic line of force that stator coil cutting rotor magnetic excitation goes out, so just produced induction electromotive force on the stator coil, obtained electric energy, realized the purpose of the sharp hydraulic turbine generator generating of steam turbine generator, this generation mode has prolonged has used last a century.But the shortcoming of this generation mode is, according to active force in the mechanics and reaction force principle as can be known, when rotor is turned clockwise by the effect of stator field power in stator, obtains an onesize anticlockwise reaction force on the stator equally.Because stator is fixed on the generator casing, the reaction force acts that stator is subjected to is on electric generator casing, and this certainly will consume this part energy by the mode of reinforcing casing, causes waste.

Summary of the invention

In view of the foregoing, the purpose of this utility model provides a kind of coaxial reversing double-rotor wind-driven generator, the rotor of this generator is made of internal rotor and external rotor, the stationary part of this generator separates with electric generator casing, is called external rotor, and original rotor is called internal rotor, when internal rotor turns clockwise, the reaction force acts that internal rotor produces makes external rotor be rotated counterclockwise on external rotor, has utilized the reaction of internal rotor generation so fully, energy saving.

For achieving the above object, the utility model by the following technical solutions: a kind of coaxial reverse pair is changeed in wind-driven generator, and it mainly comprises casing, internal rotor, external rotor, inner rotor shaft, outer rotor shaft, bearing and drive unit etc.; Described external rotor changes on axle outside by the forward and backward clamping plate of external rotor, bolt, dowel fixes; Described outer rotor shaft is a hollow shaft, it by Bearing Installation in body; Described internal rotor is fixed on the inner rotor shaft, inner rotor shaft by Bearing Installation described hollow outer transferring in the axle; Described drive unit comprises two groups of impeller, blades that the torsional angle angle is opposite; Wherein, the right handed impeller in the stressed back of one group of torsional angle angle, blade installation and are installed in the front end that is subjected to force direction on described inner rotor shaft; Another organizes the stressed back impeller that counterclockwise rotates of torsional angle angle, blade installation on described outer rotor shaft, and is installed in the rear end that is subjected to force direction.

Described drive unit also comprises two groups of transmission devices, and the impeller that described two groups of torsional angle angles are opposite links to each other with external rotor with described internal rotor by described two groups of transmission devices respectively.

Be provided with sink between described inside and outside rotor.A front cover is installed in the front of casing.

Described inner rotor shaft stretches out from an end of casing, and described outer rotor shaft stretches out from the other end of casing.Described inside and outside rotor shaft also can stretch out by an end of casing.

One group of external rotor slip ring is housed on the described outer rotor shaft, and the electric current that the armature winding on the external rotor produces is passed to the output of external rotor brush by this slip ring; Be equipped with in one pair on the described inner rotor shaft and transfer to slip ring, the two ends of the field coil on the internal rotor link to each other with internal rotor brush on being fixed on casing.

Because the utility model adopts above technological scheme, the stator that is about to former generator separates with casing as rotatable external rotor, original rotor is as internal rotor, the reaction force that produces when utilizing the internal rotor rotation, making the stator that separates with casing is that external rotor rotates round about, thereby a times of having reduced single rotor generator amature rotating speed has reduced the power output of driving machine, has saved the energy.With the steam turbine generator is example, former generator amature design speed is 3000 rev/mins, it is 1500 rev/mins that the utility model is designed to internal rotor speed, 1500 rev/mins of external rotors, inside and outside rotor speed direction is opposite, so whole rotor relative casing rotating speed still is 3000 rev/mins, so just greatly reduce the mechanical energy of unidirectional consumption when requiring 3000 rev/mins of rotors, improved the efficient that mechanical energy is transformed into electric energy.Adopt technical solutions of the utility model, can reduce the material requirement of wind-driven generator drive vane, reduce rotor diameter, reduce the pylon height, save production, installation cost.With the high-power wind-driven generator is example: long 48.8 meters of the blade of 3200 kilowatts of wind-driven generators of Hawaii, America, 98 meters of rotor diameters, 66 meters of tower heights; If the employing technical solutions of the utility model are used birotor generator instead with identical size design, output power can be more than 4200 kilowatts.The utility model is simple in structure, science, laborsaving more.

Description of drawings

Fig. 1 is the coaxial reversing double-rotor wind-driven generator of a utility model assembly structural representation

Fig. 2 (A), Fig. 2 (B) are the coaxial reversing double-rotor electric generator structure of f type schematic representation

Fig. 3 (A), Fig. 3 (B) are the coaxial reversing double-rotor electric generator structure of T type schematic representation

Fig. 4 is the utility model drive part structural representation

Summary of the invention

Below in conjunction with accompanying drawing the utility model is described in further detail.

The utility model provides a kind of coaxial reversing double-rotor wind-driven generator, and so-called " coaxial reversing double-rotor wind-driven generator " is meant and is fixed with two rotors in relative rotation on same axis, by the relative rotary electrification of two rotors.Electricity generating principle of the present invention is identical with traditional single rotor generator for electricity generation principle, difference is that the present invention has changed the rotation formula of former generator amature, become two rotors by a rotor, former rotor as internal rotor, is separated rotary outer the transferring to of formation with former stator with casing.

Fig. 1 is the coaxial reversing double-rotor wind-driven generator of a utility model assembly structural representation, the utility model is to transform to form on the basis of traditional wind, the stator of conventional electric generators separated forming rotary external rotor with casing, with former rotor as internal rotor; Inside and outside rotor is contained in respectively on the inside and outside rotor shaft, constitutes double rotor,, make inside and outside rotor while rotary electrification, thereby raise the efficiency, energy saving according to active force and reaction force principle.

As shown in the figure, the utility model is coaxial reversely two transfer to wind-driven generator and mainly comprises casing 1, internal rotor 2, external rotor 3, inner rotor shaft 5, outer rotor shaft 6, bearing and wind force driving device etc.Its concrete structure separates the stator of conventional electric generators as rotary external rotor 3 as shown in the figure with casing, be fixed on the outer rotor shaft 6 by the forward and backward clamping plate 10,11 of external rotor, bolt 12, pin 13.Described outer rotor shaft 6 is a hollow shaft, and it is installed in the body by bearing 9.One group of external rotor slip ring 14 is housed on outer rotor shaft 6, and the electric current that the armature winding on the external rotor 3 produces is passed to 15 outputs of external rotor brush by this slip ring.Internal rotor 2 is identical with the conventional electric generators rotor structure, is fixed on the inner rotor shaft 5, and inner rotor shaft 5 is installed in the hollow outer rotor shaft 6 by bearing 7, copper sheathing 8, all connects with bearing between inner rotor shaft, outer rotor shaft, the body.A pair of internal rotor slip ring 16 is housed on inner rotor shaft 5 too, and the two ends of the field coil on the internal rotor 2 link to each other with internal rotor brush 17 on being fixed on casing 1.The inside and outside rotor that fits together is installed, is fixed in the casing 1, and a front cover 18 is installed in the front of casing 1.The heat that produces when making the rotation of inside and outside rotor leaves as early as possible, is provided with a plurality of radiating fin 19 between inside and outside rotor.

The utility model is connected by bearing and copper sheathing, and inside and outside rotor, casing are formed independently three parts, makes inside and outside rotor be free to rotate.Set the rotation of internal rotor clockwise direction, according to active force and reaction force principle, external rotor counterclockwise rotates, the electric energy that the electric energy that adopts two rotor counter-rotatings to produce produces considerably beyond a rotor rotation.According to the difference of generator drive mode, the utility model is designed to f type and T type.As shown in Figure 2, the coaxial reversing double-rotor generator of f type is the two ends drive-type, transfers to axle 5 ends from casing 1 in promptly and stretches out, and outer rotor shaft 6 stretches out from the other end of casing 1, and the generator of this driving mode is applicable to wind-driven generator.Fig. 3 is the coaxial reversing double-rotor generator of T type.As shown in the figure, the coaxial reversing double-rotor generator of so-called T type is meant that inside and outside rotor shaft stretches out by an end of casing 1, and the other end of casing 1 can be applicable to water turbine, steam turbine as driving exciter.No matter be f type or T type, its working principle is identical, all requires the sense of rotation of inside and outside rotor opposite, rotating speed equates.Direction is meant that on the contrary internal rotor turns clockwise, and external rotor is rotated counterclockwise.Rotating speed equates to be meant that internal rotor equals external rotor to static rotating speed to static rotating speed, only demand equal relatively, not asking absolute equates, as long as inside and outside rotor speed sum equals designing requirement, when being greater than or less than the rotating speed of another rotor, do not influence the generator for electricity generation quality as for a rotor.

Fig. 4 is the utility model drive part structural representation, and inside and outside rotor of the present utility model drives by two groups of impellers and blade.As shown in the figure, one group of right handed impeller in the stressed back of torsional angle angle, blade 20 are installed on inner rotor shaft, are installed in the front end that is subjected to force direction; Impeller, the blade 21 that counterclockwise rotate one group of stressed back of torsional angle angle are installed on outer rotor shaft, are installed in the rear end that is subjected to force direction.Make two groups of impellers, blade under the effect that is subjected to same direction power, do the rotation of different direction.Wind-driven generator is fixed on ground by pylon usually, for the blade that makes wind-driven generator is in the optimum state, can fix a wind direction rudder 22 by steering bearing in the pylon bottom, makes

blade

20,21 all the time to the direction of facining the wind.This method is a low power wind driven generator, and high-power generator is then wanted two wind wheels to drive transmission devices such as two groups of speed changers, clutch respectively and driven the rotation that internal rotor and external rotor are made different direction.

The coaxial reversing double-rotor generator of the utility model can be made DC generator, also can make single-phase alternator and synchronous three phase generator.The utility model master section is applicable to steam turbine generator and hydraulic turbine generator simultaneously.

Claims

1, a kind of coaxial reversing double-rotor wind-driven generator, it is characterized in that: it mainly comprises casing, internal rotor, external rotor, inner rotor shaft, outer rotor shaft, bearing and drive unit etc.;

Described external rotor passes through the forward and backward clamping plate of external rotor, bolt, dowel fixes on outer rotor shaft; Described outer rotor shaft is a hollow shaft, it by Bearing Installation in body;

Described internal rotor is fixed on the inner rotor shaft, inner rotor shaft by Bearing Installation in described hollow outer rotor shaft;

Described drive unit comprises two groups of impeller, blades that the torsional angle angle is opposite; Wherein, the right handed impeller in the stressed back of one group of torsional angle angle, blade installation and are installed in the front end that is subjected to force direction on described inner rotor shaft; Another organizes the stressed back impeller that counterclockwise rotates of torsional angle angle, blade installation on described outer rotor shaft, and is installed in the rear end that is subjected to force direction.

2, coaxial reversing double-rotor wind-driven generator according to claim 1, it is characterized in that: described drive unit also comprises two groups of transmission devices, and the impeller that described two groups of torsional angle angles are opposite links to each other with external rotor with described internal rotor by described two groups of transmission devices respectively.

3, coaxial reversing double-rotor wind-driven generator according to claim 1 and 2 is characterized in that: be provided with sink between described inside and outside rotor.

4, coaxial reversing double-rotor wind-driven generator according to claim 1 and 2, it is characterized in that: a front cover is installed in the front of described casing.

5, coaxial reversing double-rotor wind-driven generator according to claim 4, it is characterized in that: described inner rotor shaft stretches out from an end of casing, and described outer rotor shaft stretches out from the other end of casing.

6, coaxial reversing double-rotor wind-driven generator according to claim 4, it is characterized in that: described inside and outside rotor shaft stretches out by an end of casing.

7, according to claim 5 or 6 described coaxial reversing double-rotor wind-driven generators, it is characterized in that:

One group of external rotor slip ring is housed on the described outer rotor shaft, and the electric current that the armature winding on the external rotor produces is passed to the output of external rotor brush by this slip ring;

A pair of internal rotor slip ring is housed on the described inner rotor shaft, and the two ends of the field coil on the internal rotor link to each other with internal rotor brush on being fixed on casing.