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INVENTION
Russian Federation Patent RU2030777
wind-driven generator
Name of the inventor: Zhupahin Anatoly
The name of the patentee: Zhupahin Anatoly
Address for correspondence:
Starting date of the patent: 1990.11.01
Use: wind power. The inventive wind-driven generator comprising positioned on a foundation vertical roller 1 traverses 14 mounted with blades 19 with sprockets 20, 21 which are connected in a ratio of 1: 2 chain drive unit stars 4, 5, coaxially placed on the shaft, and an electric generator. A vertical shaft fixedly and coaxially mounted on it a stator 3, a power generator and two sprockets 4, 5 mounted rotatably and traverse blades and the rotor 2 electric rotatably mounted on the upper end of the shaft, with each of the sprockets shaft linked chain 25 Stars one half blades.
DESCRIPTION OF THE INVENTION
The invention relates to wind power generation facilities and relates to a wind turbine having a vertical axis of rotation.
Known wind-driven generator (AS N 1307081, 1987, Bull. N 16) comprising a rotatable vertical shaft placed on it by the blades tiers having an opportunity to improve the efficiency of separation radially from the shaft and turn around their own axis according to the force and wind direction at different altitudes on the tiers.
The disadvantages are the complexity of such installation of the wind flows in determining the overall vortex during rotation of the blades and the last adjustment, and an increase in friction and support bearings, especially at the bottom of the rotating shaft due to its deflection in the amplification of the wind force.
Known wind-driven generator (US Pat. N UK 1486 338 1977), which includes a rotating shaft placed on it traverses from the blades and the hub with the steering paddle. In addition, each of the stars of the blade communicates with his star on the sleeve and the position of the steering vane position is corrected wind-driven generator blades. Sprocket teeth ratio of 1: 2 is used from the previously known invention.
The disadvantages are unreliable adjustment of the steering paddle blades because of the aerodynamic wake of turbulent vortices behind the mast in the wind flow (w. IR 87/9, pp. 8, abz.7), reduced efficiency due to the large number of chain drives and skew bearing bend at the base of the rotating shaft in the wind.
The closest in totality of features (prior art) is a solution comprising a rotating shaft with vertical vanes which asterisk in the ratio 1: 2 communicated with sprockets arranged coaxially to the shaft. Moreover sprocket shaft do not rotate with the shaft, and by means of gears, bushings and sleeves are connected with a centrifugal governor that by adjusting the position of the blades depending on changes in wind speed or the load on the power generator, to stabilize the rotation speed of the blades about the shaft.
The disadvantages of the device are a large number of chain drives, reducing the efficiency of the plant and the complex and cumbersome metal, confining ing shaft of inflection when the wind load, and at the same time dramatically reducing the useful area of the blades in the wind turbine under a busy space.
The essence of the invention is that a wind-driven generator comprising positioned on a foundation vertical shaft traverses mounted with blades with sprockets connected in a ratio of 1: 2 chain drive unit sprockets coaxially placed on the shaft, and an electric generator, a vertical shaft rigidly and coaxially mounted on it electric generator stator and two sprockets rotatably mounted, and a yoke and rotor blades of an electric generator rotatably mounted on the upper end of the shaft, wherein each shaft of the sprockets associated with one of the circuit halves Stars blades.
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FIG. 1 shows a proposed wind-driven generator, general view; Figure 2 - Scheme of the position of the blades, chains.
Wind-driven generator (Fig. 1) consists of a shaft 1 mounted thereon with the stator 2, which is mounted inside the rotor 3 and power generator. On the fixed shaft 1 and the sprocket 4 and 5 of the same diameter wheel 6e formed together with the worm 7, for example, a worm gear pair. 7 Worm 8 communicates with a steering wheel attached to the support column 9 inside which is installed with the support shaft 1 on a bearing 10. The support frame 9 is fixed on the base 11. At the upper end of the shaft 1 through a bearing 12 and 13 hinged yoke 14 consisting of upper 15 16 and a lower rocker, linked to hardness connections 17. at the periphery of the rocker arms 15 and 16 in the bearing assemblies 18 are mounted blades 19 blades on the rotational axis 20 and sprocket set 21 with respect to the double sprockets 4 and 5, the diameter of which are covered by a planetary chain 22 and 23 with sprockets 4 and 5 respectively. Lower rocker 16 is rigidly connected to the rotor of the electric generator 3, which is to protect from rain and protection from the current closed casing 24. When the yoke 14 is fixed several pairs of blades, the chain 25 (see FIG. 2) includes a planetary one of 4 stars ( or 5) and all the double sprocket 21 of one half of the diameter of the blades 19, another chain 26 and encloses the other planetary sprocket 5 (or 4) and twice the diameter of the sprocket 21, the second half of the blade 19. The division in two arbitrary blades Stars.
When mounting one blade is positioned along the diameter of the circle, and the other end of the diameter perpendicular to it. In this position, the blades 20 and the sprocket 21, the chain cover, respectively, with the sprockets 4 and 5. If several pairs of blades wind-driven generator, then each subsequent vane is set at an angle with the rotation 
relative to the previous blade. Angle concrete blades are according to the formula
n i - specific blade - 1, 2, 3, etc.
180 - the angle of rotation of the blade at a crosshead turnover.
After installing the sprocket blades fixed chains.
Wind turbine operates as follows. With the same transmission ratio of 1: 2 between the sprocket and the blades, the blades occupy a desired position in the transition from one position to another with only two circuits with any number of blades.
The minimum number of circuits with any number of blades reduces friction and improves the efficiency of the installation.
Transferring bearing 12 at the upper end of the shaft and support bearing 13 at the base of the lower traverse substantially affect the nature of the wind-driven rotation. The shaft itself can bend even with blades tilted traverse, but this hardly influences the friction bearing at the upper end of the shaft. Sam shaft does not rotate, and therefore reduces the overall mass of the rotating parts. On rotation does not affect the increase in the bearing friction at the base of the shaft from the last trough in the wind. These advantages make it possible to operate the installation at a weak wind and increase efficiency.
Regulation of the rotational speed of the blades is carried out by turning the shaft. From the deflection of the shaft bearing the base may be skewed, but it does not affect the rotation of the electric generator. Asterisks 4 and 5 are fixed to the shaft, so that the position of the blades relative to the shaft does not change, but the change relative to the wind. By turning the hand wheel 8 is reduced wind perception right side area is increased and the left, or vice versa, leading to a decrease or increase in the perceived difference from the wind pressure on the part of the traverse and, accordingly, the rotation speed. In this case the wheel may be driven automatically by known methods, and determine the direction of the wind sensors installed at a distance from the wind turbines, excluding the impact of its own vortex.
With a large number vetroelektroustanovok use in family, farm, farm rent and other forms of ownership can occur a sharp reduction in energy consumption of public power grids, that may be an alternative nuclear power will lead to the improvement of the ecological situation in the regions.
CLAIM
Wind-driven generator comprising positioned on a foundation vertical shaft traverses mounted with blades with sprockets connected in a ratio of 1: 2 chain drive unit sprockets coaxially disposed on the shaft, and an electric generator, wherein the vertical shaft is rigidly and coaxially fixed on therein the electric generator stator and two sprockets rotatably mounted, and a yoke and rotor blades of an electric generator rotatably mounted on the upper end of the shaft, wherein each shaft of the sprockets associated with one of the circuit halves Stars blades.
print version
Publication date 17.02.2007gg
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