JP5850706B2 - Windmill - Google Patents

Description

  The present invention relates to a windmill, and more specifically, a windmill suitable for use in wind power generation that always rotates in the same direction regardless of the wind direction, and does not rotate abnormally at high speed even when subjected to strong winds. It is about.

  Effective use of natural energy has become indispensable since the nuclear accident in Fukushima due to the Tohoku earthquake. Various types of wind power generators have been proposed to use wind power, which is one of the natural energies, but it always rotates in a certain direction regardless of the direction of the wind, and it is self-control when it receives a strong wind. A wind turbine suitable for use in a wind turbine generator that does not rotate abnormally at high speed due to force is not proposed.

JP 2010-77946 A

  As described above, various types of wind turbine generators have been proposed in the past. However, the wind turbine always rotates in a constant direction regardless of the wind direction. There is no proposal of a windmill suitable for use in a wind power generator of the type that does not occur. Therefore, an object of the present invention is to provide a wind turbine suitable for use in a wind power generator of a type that always rotates a rotating shaft of a generator in a fixed direction even when the wind direction changes.

  The invention according to claim 1 for solving the above-mentioned problem is arranged such that a windmill body having a top plate and a bottom plate that are attached to a central rotating shaft and rotates, and is arranged at equal angles around the central rotating shaft. A stopper having an L-shaped cross section for connecting the top plate and the bottom plate, and a vane plate that is pivotally supported by a hinge pin installed inside a corner of the stopper and whose rotation direction and rotation range are regulated by the stopper; It is a windmill characterized by comprising.

And on the lower side of the bottom plate, a fluid chamber is provided with a number of rotation restraining plates projecting inwardly on the inner peripheral surface, and a suitable amount of liquid or granular fluid is filled, and the fluid is When the wind turbine body rotates at an abnormally high speed, it is moved by centrifugal force and pressed against the inner peripheral surface of the fluid chamber, and the rotation speed of the wind turbine body is suppressed by hitting the rotation suppression plate, and the rotation of the wind turbine body decreases. Accordingly, it returns to the inner bottom surface of the fluid chamber by its own weight.

  The present invention is as described above, and the vane plate of the wind turbine according to the present invention is restricted in the rotation direction and the rotation range by the L-shaped stopper. For example, the wind turbine is used for driving a rotating shaft of a wind power generator. When used, the rotating shaft of the wind power generator is always driven to rotate in a fixed direction, which is suitable for use in a wind power generator installed in a place where the wind direction may change. In addition, when a strong wind is applied, the self-control force does not work due to the action of the fluid and does not rotate abnormally at high speed, and there is an effect that the equipment is not damaged by abnormally high speed rotation.

It is a longitudinal section showing the composition of the windmill concerning the present invention. It is the sectional view on the AA line in FIG. 1, and the BB sectional drawing. It is a longitudinal cross-sectional view which shows the structure and effect | action of a fluid chamber in the windmill which concerns on this invention. It is a perspective view which shows the structure of the stopper and blade | wing plate in the windmill which concerns on this invention. It is a transverse cross section showing composition and an operation of a fluid room in a windmill concerning the present invention. It is a figure which shows the effect | action of the windmill which concerns on this invention.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated in detail, referring drawings. FIG. 1 is a longitudinal sectional view showing the configuration of a wind turbine according to the present invention. As shown therein, the wind turbine has a top plate 2 and a bottom plate 3 that are attached to a central rotating shaft 4 and rotate. 1, a stopper 5 having an L-shaped cross section installed between the top plate 2 and the bottom plate 3 of the wind turbine body 1 at equal intervals, and a hinge pin 6 installed inside the corner of the stopper 5 so as to be pivotally supported. It consists of a blade 7 whose rotation direction and rotation range are regulated by a stopper 5.

  In a preferred embodiment, a fluid chamber 11 filled with an appropriate amount of liquid or granular fluid 10 is provided below the bottom plate 3. The fluid chamber 11 in the illustrated example has a fluid receiving plate 14 with an outer peripheral wall 13 formed at the periphery on the lower side of the bottom plate 3 with the rising wall 12 formed at the periphery, and an appropriate space between the bottom plate 3. The rising wall 12 of the bottom plate 3 and the outer peripheral wall 13 of the fluid receiving plate 12 are supported by an outer fixed frame 15 that does not rotate. Oil sealing is performed between the upper surface of the rising wall 12 and the inner top surface of the outer fixing frame 15 and between the lower surface of the outer peripheral wall 13 and the inner bottom surface of the outer fixing frame 15.

  A large number of rotation restraining plates 16 projecting inwardly protrude from the inner peripheral surface of the outer fixed frame 15. The fluid 10 is moved by centrifugal force during abnormally high speed rotation of the windmill body 1 and is pressed against the inner peripheral surface of the fluid chamber 11, in other words, the inner peripheral surface of the outer fixed frame 15, and hits the rotation restraining plate 16. This acts to suppress the rotational speed of the windmill body 1. Then, as the rotation of the windmill body 1 decreases, it returns to the inner bottom surface of the fluid chamber 11 by its own weight, in other words, onto the fluid receiving plate 14.

  Next, the operation of the wind turbine according to the present invention having the above configuration will be described. The stopper 5 having an L-shaped cross section is arranged as shown in FIG. 2, and when the wind direction is from the upper side to the lower side in FIG. 2 (see the wind direction (1) in FIG. 6), the blade 7 located in the right half. Receives the wind, turns through the hinge pin 6, comes into contact with one inner surface of the stopper 5 and can continue to receive the wind, and then continues to receive the wind so as to press the inner surface. . As a result, the windmill body 1 is driven to rotate clockwise about the central rotation shaft 4. At that time, the blade plate 7 located in the left half is folded to receive the wind, does not contribute to the rotation of the windmill body 1, and does not inhibit the rotation.

  When the wind direction is from the lower side to the upper side (see wind direction (2) in FIG. 6), the vane plate 7 located in the left half is in a state where it can receive wind, and the windmill body 1 is driven to rotate. The slat 7 located in the right half is folded to receive the wind, does not contribute to the rotation of the windmill body 1, and does not hinder the rotation. Similarly, when the wind direction is from the left to the right (see the wind direction (3) in FIG. 6) and when the wind direction is from the right to the left (see the wind direction (4) in FIG. 6), a half of the blades The plate 7 rotationally drives the windmill body 1. As is clear from the drawings in FIG. 6, the windmill body 1 always rotates in the same direction regardless of the wind direction.

  Therefore, for example, when the central rotating shaft 4 of the wind turbine is connected to the rotating shaft of the generator, the rotating shaft is always driven to rotate in the same direction, so that it can be omnidirectional regardless of the wind direction and stable wind power generation is possible. It becomes possible.

  When the windmill body 1 rotates abnormally at a high wind speed or the like, the fluid 10 on the inner bottom surface (fluid receiving plate 14) of the fluid chamber 11 is moved by the centrifugal force to the fluid chamber 11 (outer fixed frame). 15) is shifted toward the inner peripheral surface side and hits against the rotation restraining plate 16, thereby acting as a load on the rotation of the windmill body 1 and acting to restrain the abnormal rotation of the windmill body 1. Further, as the rotation of the windmill body 1 decreases, the fluid 10 moves away from the inner peripheral surface 13 of the outer fixed frame 15 by its own weight and returns to the fluid receiving plate 14.

  As described above, the wind turbine according to the present invention is controlled by the L-shaped stopper in the rotation direction of the blades. Therefore, for example, when the wind turbine is used for driving the rotating shaft of the wind power generator, the rotation of the wind power generator is performed. Since the shaft is always driven to rotate in a fixed direction, it is suitable for use in wind power generators installed in places where the wind direction may change. There is an effect that the device is not damaged due to abnormal high speed rotation.

DESCRIPTION OF SYMBOLS 1 Windmill main body 2 Top plate 3 Bottom plate 4 Center rotating shaft 5 Stopper 6 Hinge pin 7 Blade plate 10 Fluid 11 Fluid chamber 12 Standing wall 13 Outer peripheral wall 14 Fluid receiving plate 15 Outer fixed frame 16 Rotation restraint plate

Claims (1)

A windmill main body having a top plate and a bottom plate that are attached to a central rotary shaft and rotate; and an L-shaped stopper that is disposed at equal angles around the central rotary shaft and connects the top plate and the bottom plate. the supported pivotably by a hinge pin installed in Tsunobeuchi side of the stopper, Ri consists slats and the rotation direction and the rotation range is restricted by the stopper,
A fluid chamber is provided below the bottom plate, which is provided with a number of rotation-inhibiting plates projecting inwardly on the inner peripheral surface and filled with an appropriate amount of liquid or granular fluid, and the fluid is the windmill. When the main body moves at an abnormally high speed, it is moved by centrifugal force and pressed against the inner peripheral surface of the fluid chamber, and the rotation speed of the windmill body is suppressed by hitting the rotation suppression plate, and the rotation of the windmill body is reduced. Along, windmill, wherein Rukoto return to the inner bottom surface of the fluid chamber by its own weight.