CN203978711U - A kind of compound oar blade type Double-rotor wind-driven generator - Google Patents

Abstract

A composite paddle-type double-rotor wind power generator, including a generator body, the generator body is fixed on the generator tower through a base, the inside of the generator body includes an inner rotor and an outer rotor, and the outer rotor is connected by a hollow outer shaft For the inner blade, the inner rotor is connected to the outer blade through the central shaft. The outer shaft is sleeved on the outside of the central shaft. Lubricants and bearings are provided between the outer shaft and the central shaft. The rotation direction of the inner blade and the outer blade is opposite. By adopting the above technical solution, the efficiency and unit power of the wind power generator can be effectively improved.

Description

A composite paddle-type dual-rotor wind power generator

technical field

The utility model relates to a wind power generator, in particular to a high-efficiency composite paddle type double-rotor wind power generator.

Background technique

With the global energy shortage, wind power generation is getting more and more attention from major power generation companies, and the country also regards wind power generation as a strategic industry. In the existing wind power generators, most of them use the blades to drive the generator to generate electricity. To increase the power of the generator, two methods are generally used: increasing the length of the blades or increasing the speed of the blades. However, due to Due to material limitations, the above two approaches have reached the limit of modern manufacturing technology, and it is difficult to continue to expand the potential. Therefore, it is necessary to find new ideas to increase the power of wind turbines.

Utility model content

The purpose of the invention of this utility model is to design a composite paddle-type double-rotor wind-driven generator that can effectively improve generator power and efficiency, and its specific technical scheme is:

A composite paddle-type double-rotor wind power generator, including a generator body, the generator body is fixed on the generator tower through a base, the inside of the generator body includes an inner rotor and an outer rotor, and the outer rotor is connected by a hollow outer shaft For the inner blade, the inner rotor is connected to the outer blade through the central shaft. The outer shaft is sleeved on the outside of the central shaft. Lubricants and bearings are provided between the outer shaft and the central shaft. The rotation direction of the inner blade and the outer blade is opposite.

By adopting the above technical solution, the efficiency and unit power of the wind power generator can be effectively improved.

Description of drawings

Fig. 1 Schematic diagram of composite paddle-type dual-rotor wind turbine.

Among them, 1-inner rotor; 2-outer rotor; 3-outer shaft; 4-middle shaft; 5-inner blade; 6-outer blade; 7-generator body; 8-base.

Detailed ways

The examples set forth below represent the necessary information to allow those skilled in the art to practice the invention and show the best mode of practicing the invention. Upon reading the following description in light of the accompanying drawing figures, those skilled in the art will understand the concepts of the invention and will recognize applications of these concepts not particularly addressed herein. It is to be understood that these concepts and applications fall within the scope of this disclosure and the appended claims.

Referring to the composite paddle-type dual-rotor wind power generator shown in Figure 1, it includes a generator body 7, which is fixed on the generator tower through a base 8, and the inside of the generator body 7 includes an inner rotor 1 And the outer rotor 2, the outer rotor 2 is connected to the inner paddle 5 through the hollow outer shaft 3, the inner rotor 1 is connected to the outer blade 6 through the central shaft 3, the outer shaft 3 is sleeved on the outside of the central shaft 4, the outer shaft 3 and the central shaft Lubricants and bearings are arranged between the 4, and the rotation directions of the inner paddle 5 and the outer paddle 6 are opposite.

Due to the double-rotor structure, it can achieve twice the power of ordinary wind generators at the same wind speed, and the wind generators do not need too large blades, which reduces the difficulty and cost of manufacturing. The composite inner and outer blades can effectively use the vortex of the rotation of the outer blade 6 to drive the inner blade 5, which improves the utilization efficiency of wind.

Apparently, the above-mentioned embodiments are only examples for clearly illustrating the utility model, rather than limiting the implementation manner of the utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And these obvious changes or variations derived from the spirit of the present utility model are still within the protection scope of the present utility model.

Claims (1)

1. a compound oar blade type Double-rotor wind-driven generator, comprise generator body (7), generator body (7) is fixed on generator pylon by pedestal (8), it is characterized in that: generator body (7) inside comprises internal rotor (1) and external rotor (2), external rotor (2) connects inner side blade (5) by the outer shaft (3) of hollow, internal rotor (1) connects outside blade (6) by axis (3), outer shaft (3) is enclosed within the outside of axis (4), between outer shaft (3) and axis (4), be provided with oiling agent and bearing, the direction of rotation of inner side blade (5) and outside blade (6).