Wind power generation device with rear-mounted blades

Abstract

The invention discloses a wind power generation device with rear-mounted blades. The wind power generation device comprises a stand column, a wind power generation main engine and the blades. The main engine is hinged to the top of the stand column. The blades are installed on the tail of the main engine in a rear-mounted mode. A hydraulic piston cylinder capable of moving telescopically is further hinged between the upper portion of the stand column and the rear portion of the main engine. A piston of the hydraulic piston cylinder moves telescopically to adjust changes of the pitching dip angle, on the stand column, of the main engine. At least three steel cables are uniformly distributed on the upper portion of the stand column and fixedly connected to the upper portion of the stand column. The other ends of the steel cables are fixedly connected with a ground pile in a cable-stayed mode. Due to the design, the steel cables of the stand column and the blades do not interfere with each other in the cable-stayed process of the cables, wind resistance influence is small, diameter space of the blades is enlarged, the swept area of wind power is increased, power is increased, the dip angle can be controlled, adjusted and rotated for harmonizing loads of wind power, and the wind power can be tracked automatically; due to high-gradient hilly area arrangement, the blades rotate in an inclined mode to make the front side face wind, and the wind power is fully utilized; with assistance of the cable-stayed steel cables, the structural cost can be reduced, the defect of the poor wind-proof capacity in tradition is overcome, and the wind power generation device is suitable for being arranged on coasts with strong wind.

Description

technical field

[0001] The invention relates to a wind energy utilization device, in particular to a wind power generator whose blades are placed behind a column to rotate and the blades can be folded. Background technique

[0002] In the conventional wind power generators that are common at present, the main engine used for power generation is installed horizontally on the top of the column, and the blades are arranged in front of the column. The layout feature of this type of front-mounted horizontal axis wind turbine is that the front of the blade rotates around the horizontal axis against the wind and is not disturbed by the floc flow of the column, but its disadvantage is that when the wind intensity increases, the vertical column will bear a large force Horizontal thrust; the blades and main equipment are arranged at the top of the column, which is heavy and the center of gravity is high. The column is made of steel in the design, and the installation requirements are ...

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