JP2003056447A - Generating one-way rotation windmill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a generating windmill that rotates continuously in a constant direction irrespective of wind direction by automatically changing the pitch of windmill vane surfaces according to wind direction. SOLUTION: A vane 1 of the windmill is mounted on a shaft 4 at a point 5. The vane 1 freely rotates on the point 5 and stops within a range of stoppers 2 and 2'. The stoppers 2 and 2' may be movable on springs 3 and 3' until brought parallel to the direction of the shaft 4. When a soft, windmill vane is employed and a swell of the soft vane of duck or the like is used to change the pitch normally or reversely, the windmill rotates in one direction.

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, the mounting portion of the blades of a wind turbine is made movable, and the pitch direction and angle are automatically switched according to the wind direction so that the rotation direction of the wind turbine is always constant regardless of whether the wind direction is forward or reverse. It is a wind turbine for power generation. Conventionally, a wind turbine for wind power generation rotates the motor of the generator in a fixed direction, so the rotation of the wind turbine must also be held in a fixed direction. It required a rotating shaft and rudder, and its structure was complicated and required high technology and high construction cost to be large. In addition, the energy conversion efficiency has a large loss. The structure of the wind turbine according to the present invention does not require a rotating shaft to face the wind turbine as a whole, and the orientation of the wind turbine can be fixed, which simplifies the installation structure and therefore the construction cost. . Moreover, the area of the installation place is small due to the characteristic of the simplicity of the structure, and the range of installation place selection is expanded. This will be described below. The movable blade (1) is attached to the rotating shaft (4) of the wind turbine. Movable wings (1)
Changes in the forward and reverse directions around the axis (5) depending on the wind direction, so that the rotating shaft (4) always rotates in the fixed direction (9). Further, if the blades are configured as soft blades as in claim 2, the same effect is produced, the convenience is further improved depending on the intended purpose conditions, and the construction cost is reduced. Wind turbines made in this way do not need to change the direction of the wind turbine's rotation axis depending on the wind direction and can be fixed in a fixed direction, so they can be installed in parallel at locations that block strong wind passages. , It can be installed in places where the wind direction changes forward and backward depending on the time without worrying about the wind direction. As a concrete application example, if you install it so that the bridge can be hung in the valley of the building,
Even if the wind direction changes in the afternoon etc., it is possible to generate power by the rotating force in a fixed direction at all times, and it is possible to reduce the strong building wind.

Instead of a windbreak on a windy coast, if you install this windmill in parallel instead of a windbreak and connect this rotating force to drive a generator, you can get a large output.

If this is installed as a water turbine in the sea where the tidal current reverses and intensifies due to the ebb and flow of the tide, it can be used for power generation as it is even if the tidal current is reversed in the morning and afternoon etc. If used, the structure of the device can be simplified.

[Brief description of drawings]

1] Perspective view

2 is a plan view

FIG. 3 is a three-dimensional view of claim 2.

[Explanation of symbols]

FIG. 1 (1) is a blade of a wind turbine, (5) is a mounting fulcrum of (1), and (4) is a rotating shaft of the wind turbine. (2) and (2 ') are stoppers of the blade (1), and when the wind blows from the left side to the right side, they are attached to the stopper (2) on the right side to obtain a rotational force about the front (9) direction. Even if the wind is reversed, the blade sticks to the left side (2 '), so that it also rotates in the front (9) direction. (3) (3 ') are springs that hold the stopper.

FIG. 2 is (1) a blade of a wind turbine, (5) is a mounting fulcrum of (1), (4) is a rotation shaft of the wind turbine, and (2) and (2 ') are stoppers of the blade (1). (3) and (3 ') are springs that hold the stopper.

[FIG. 3] (1) is a blade made of canvas, (2) is a girder, (3)
Is the outer frame, (4) is the rotation axis of the blade, (5) is the attachment position of the blade to the outer frame, and (6) is the attachment position of the blade to the rotation axis.

Claims (2)

[Claims] (A) A blade (1) of a wind turbine is attached to a rotary shaft (4) at a point (5). (B) At this time, the base of (1) fitted in the attachment point (5) is made movable, and (c) stoppers (2) and (2 ') are provided when the positions of the blades are switched depending on the wind direction. Attach the stoppers (2) (2 ') to the springs (3) (3').
If you hold down with, you can adjust the pitch of the blades. If the blade is movable until it becomes parallel to the axis (4), it is possible to prevent the blade from being damaged by an extremely strong wind. In this way, the pitch of the blades of the wind turbine for power generation is automatically switched according to the wind direction, and always rotates in one direction regardless of the wind direction. 2. A wind turbine having the same effect can be obtained by using soft blades whose blades are made of canvas. This may be a non-woven fabric such as vinyl or a thin plate made of thin metal or plastic. (A) Attach the blade mounting girder (2) to the rotating shaft (4). (B) Attach the outer frame (3) to the outer circumference. (C) Between the rotating shaft (4) and the outer frame (3), one side of the blade (1) made of canvas or the like is attached to the girder (2) and fixed. (D) Fix both ends of the other side of the blade (1) made of canvas or the like to point (5) on the outer frame (3) and point (6) on the rotary shaft (4), and slightly loosen between them. No, let it swell to one side due to wind pressure. By doing this, the wind turbine will have the same effect as in the previous section.