JP7101305B1 - Fluid energy converter - Google Patents

Abstract

An object of the present invention is to provide a highly durable fluid energy conversion device with a structure that is as simple as possible. An output shaft (2), a pair of rotating plates (3) fixed to the output shaft at intervals in the length direction, both ends of the rotating plates are rotatably supported, and are spaced from the output shaft by a predetermined distance. A plurality of blade support shafts 4 arranged in parallel and spaced around the output shaft, pressure receiving blades 5 fixed to each of these blade support shafts, and fixed to one end of the blade support shaft a fixed gear 7 into which the output shaft is rotatably fitted; a synchronous gear 8 fixed to the other end of each blade support shaft; provided between a first rotation transmission means 9 for rotating one of the blade support shafts by rotating the drive gear when the drive gear is caused to revolve around the output shaft by the rotation of the rotating plate, and a plurality of synchronous gears; and a second rotation transmission means 10 for rotating all the blade support shafts by synchronously rotating the synchronous gears in the same direction. [Selection drawing] Fig. 2

Description

The present invention relates to a fluid energy conversion device in which a rotation mechanism is rotationally driven by utilizing fluid energy (hydropower or wind power) generated by the flow of a fluid such as water or wind.

Conventionally, this kind of fluid energy conversion device has been proposed, for example, in Patent Document 1.

This Patent Document 1 describes a fluid energy conversion device that converts the fluid energy of a sea or a river into the rotation of an axis.

This energy conversion device is a water turbine installed in water flowing in one direction, and a plurality of columns are radially planted with respect to the rotating spindle of the water turbine, and these columns are parallel to the rotating spindle. The rotating shafts are suspended, and blades that are asymmetrically supported with respect to the center of rotation are attached to each of the rotating shafts.

With such a configuration, the energy of the fluid flowing in one direction is received by each blade to move the blade around the axis of the rotating spindle, and the rotation of the blade rotates the rotating spindle.

Further, the rotation of the blade at the lower position is restricted so as to be parallel to the support column so that the blade can receive the water flow as it is to obtain a large rotational force.
On the other hand, the blade at the upper position is made to be rotatable on the rotation shaft and the water flow is passed through, so that the water flow is effectively converted into rotation.

Japanese Patent Application Laid-Open No. 10-331756

By the way, in the technique described in Patent Document 1 described above, the structure is complicated because there are many moving parts, and the blade itself, which is a pressure receiving object, has a swingable configuration, which is intermittent with other constituent members during operation. It is disadvantageous in terms of durability because it can be collided.

The present invention has been made in view of the problems remaining in the above-mentioned conventional technique, and it is an object to be solved to provide a fluid energy conversion device having a structure as simple as possible and having high durability. ..

The fluid energy conversion device of the present invention is a fluid energy conversion device that converts the energy of a fluid into rotational motion in order to solve the above-mentioned problems. A pair of rotating plates fixed in place, both ends are rotatably supported by these rotating plates, parallel to the output shaft at a predetermined distance, and spaced around the output shaft. A plurality of blade support shafts arranged therein, a pressure receiving blade fixed to each of these blade support shafts, a drive gear fixed to one end of the blade support shaft, and the output shaft rotatably. It is interposed between the fixed gear to be inserted, the synchronous gear fixed to the other end of each blade support shaft, and the fixed gear and the drive gear, and the drive gear is output by the rotation of the rotating plate. A first rotation transmission means for rotating the drive gear to rotate one of the blade support shafts when revolved around a shaft, and the plurality of synchronous gears provided between the plurality of synchronous gears. It is characterized by being provided with a second rotation transmitting means for rotating all blade support shafts by rotating synchronously in the same direction.

The fluid energy conversion device of the present invention is operated by the energy of running water of the sea or river, or the wind energy of the wind flow of sea or land, and rotates the output shaft.

The rotation of the output shaft is performed by the rotation of the rotating plate.
Then, the rotation of the rotating plate is performed by the kinetic energy of the fluid acting on the pressure receiving blade rotatably attached to the rotating plate via the blade support shaft.

The pressure receiving blade is rotated around the axis of the output shaft by the rotation of the pair of rotating plates, and at the same time, one blade support shaft is rotated by the drive gear, the fixed gear, and the first rotation transmission means. It rotates around the axis of the support shaft.

Further, the rotation of one blade support shaft is performed in synchronization with the rotation of all the blade support shafts and the pressure receiving blades by rotating the synchronous gear attached to each blade support shaft synchronously by the second rotation transmission means. Is done.

Further, the blade support shaft is sequentially moved while rotating to a predetermined position around the axis of the output shaft by the above-mentioned revolution, and these blade support shafts are synchronously rotated by the second rotation transmission means to this predetermined position. The pressure receiving blades of the blade support shafts positioned at are sequentially along the virtual surface including the axis of the output shaft.

On the other hand, the pressure receiving blades other than the pressure receiving blades positioned along the virtual surface including the axis of the output shaft are positioned at positions inclined with respect to the virtual surface.

As a result, each pressure receiving blade forms a different front projection area for the fluid flowing perpendicular to the output axis.

Then, the fluid abuts on each pressure receiving blade and presses the pressure receiving blade, and the pressing pressure is proportional to the front projected area.

Here, since the front projected area formed by each pressure receiving blade changes depending on the position around the output shaft, there is a difference in the pressing force by the fluid on both sides of the output shaft.
The rotating plate and the output shaft are rotated by such a difference in pressing force.

In the fluid energy conversion device configured in this way, most of the movements of the constituent members are rotational movements, and these do not collide with each other.

Therefore, it is possible to have a simple configuration in which these are connected to the relative rotation, and the durability is improved without the occurrence of an impact due to a collision.

By setting the gear ratio of the drive gear to the fixed gear to 2, the difference between the front projected area of the pressure receiving blade positioned orthogonal to the flow direction and the front projected area of other pressure receiving blades can be increased. ..
As a result, the difference in the pressing force due to the fluid on both sides of the output shaft becomes large, and the rotational force applied to the output shaft becomes large.

The first rotation transmission means can be configured by a drive gear and a belt wound around a fixed gear, or can be configured by an idle gear meshed with the drive gear and the fixed gear.

The second rotation transmission means can be configured by a belt provided around all the synchronous gears.

The pressure receiving blade can be reduced in weight by being made of lightweight plastic.

Then, by connecting a generator to the end portion at the time of output, it can be used for power generation as a drive source of the generator.

According to the fluid energy conversion device of the present invention, it is possible to provide a fluid energy conversion device having a structure as simple as possible and having high durability.

It is a front view which shows the 1st Embodiment of this invention. It is a left side view which shows the 1st Embodiment of this invention. It is a right side view which shows the 1st Embodiment of this invention. It is a left side view which shows the 2nd Embodiment of this invention.

Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 3.
In these figures, reference numeral 1 indicates a fluid energy conversion device according to the present embodiment.

The fluid energy conversion device 1 of the present embodiment has an output shaft 2, a pair of rotating plates 3 fixed to the output shaft 2 at intervals in the length direction thereof, and both ends of the rotating plates 3 are rotated. A plurality of blade support shafts 4 that are movably supported and arranged in parallel with the output shaft 2 at predetermined intervals and at intervals around the output shaft 2, and each of these blade support shafts 4. A substantially flat pressure receiving blade 5 fixed to, a drive gear 6 fixed to one end of one blade support shaft 4, and a fixed fixed gear 7 into which the output shaft 2 is rotatably inserted. A synchronous gear 8 fixed to the other end of each blade support shaft 4, and a first rotation transmission means 9 provided between the fixed gear 7 and the drive gear 6 to rotate the drive gear 6 by rotation of the rotary plate 3. A second rotation transmission means 10 for synchronously rotating a plurality of synchronous gears 8 in the same direction is provided.

The fluid energy conversion device 1 of the present invention is operated by the energy of running water of the sea or a river to rotate the output shaft 2.

In the present embodiment, a casing C having side walls facing each other in parallel is provided, and a main component is incorporated in the casing C.
The output shaft 2 is rotatably mounted on the side wall facing the casing C, and one end thereof is penetrated through the side wall and is projected to the outside.

As shown in FIG. 1, a generator 11 is continuously provided at an end projecting outward of the output shaft 2, and the generator 11 is rotationally driven by the rotation of the output shaft 2 to generate power. It has become.

The output shaft 2 is rotatably fitted in the central portion of the fixed gear 7, and is integrally fixed to the inner wall of the casing C.

In the present embodiment, the first rotation transmitting means 9 uses an annular belt, is arranged so as to surround the drive gear 6 and the fixed gear 7, and has continuous teeth formed inside (not shown). ) Is engaged with the drive gear 6 and the fixed gear 7.

Due to the revolution and rotation of the plurality of pressure receiving blades 5, one pressure receiving surface is positioned so as to be orthogonal to the fluid flow direction in the middle of the revolution, and in the other pressure receiving blades, each pressure receiving surface is the fluid flow direction. It is positioned so as to be inclined or parallel to the relative.

That is, when the pressing force by the fluid acts on the pressure receiving blade 5, the rotating plate 3 and the output shaft 2 to which the rotating plate 3 is attached are integrally rotated.

Further, each blade support shaft 4 is revolved around the axis of the output shaft 2 by the rotation of the rotary plate 3, and at the same time, one blade is supported by the drive gear 6, the fixed gear 7, and the first rotation transmission means 9. The shaft 4 is rotated.

Further, the synchronous gear 8 attached to each blade support shaft 4 is synchronously rotated by the second rotation transmission means 10, so that the entire blade support shaft 4 and the pressure receiving blade 5 are rotated by rotation.

Here, when the gear ratio of the drive gear 6 to the fixed gear 7 is set to 2, when the output shaft 2 is rotated by 1/2 rotation (180 degrees), it reaches the lowest point as shown by the arrow a in FIG. The positioned blade support shaft 4 is moved to the uppermost point, and the blade support shaft 4 is rotated by 1/4 (90 degrees) as shown by the arrow b in the figure.

Then, when the pressure receiving blade 5 of the blade support shaft 4 positioned at the lowest point is vertical, the pressure receiving blade 5 is made horizontal when the blade support shaft 4 is revolved to the uppermost point.

As a result, as shown in FIG. 2, the pressure receiving blade 5 in the vertical state at the lowest point is orthogonal to the flow of water indicated by the arrow C in the figure, and the pressure receiving blade 5 in the horizontal state at the highest point is water. It becomes parallel to the flow.

As a result, a large pressing force is applied to the pressure receiving blade 5 at the lowest point by running water, and a small pressing force is applied to the pressure receiving blade 5 at the highest point by running water.

When there is a difference in the pressing force of the flowing water above and below the output shaft 2 in this way, the difference in the pressing force acts on the output shaft 2 as an external force in the rotational direction, and the output shaft 2 is rotated.

The fluid energy conversion device configured in this way improves durability by treating most of the movements of its constituent members as rotational movements, preventing collisions during these movements, and preventing the generation of impacts due to collisions. Moreover, these connections can be made into a simple configuration.

It should be noted that the various shapes, dimensions, and the like of each constituent member shown in the above-described embodiment are examples and can be variously changed based on design requirements and the like.

Although the gear ratio of the drive gear 6 to the fixed gear 7 is exemplified as 2, this gear ratio can be set arbitrarily.

Although an example in which the first rotation transmitting means 9 is composed of a belt wound around the drive gear 6 and the fixed gear 7, a chain can be used instead of the belt.

Further, as shown in FIG. 4, it can also be configured by providing an idle gear 12 that meshes with the drive gear 6 and the fixed gear 7.

Further, the pressure receiving blade 5 may be made of lightweight plastic to reduce the weight.

Furthermore, it is possible to use not only water but also wind as a fluid.

The size of the pressure receiving blade 5 can be arbitrarily changed, and the size of the entire fluid energy conversion device 1 is increased accordingly.
Thereby, for example, the fluid energy conversion device 1 can be used even in an environment where a large flow such as the Kuroshio Current is generated instead of a small river.

Further, the fluid energy conversion device 1 is more efficient because it is provided with a substantially plate-shaped pressure receiving blade 5 that receives wind (or running water) on the entire surface, instead of a propeller-shaped blade like an existing wind power generator. Power conversion is possible.

1 Fluid energy converter 2 Output shaft 3 Rotating plate 4 Blade support shaft 5 Pressure receiving blade 6 Drive gear 7 Fixed gear 8 Synchronous gear 9 First rotation transmission means 10 Second rotation transmission means 11 Generator 12 Idle gear C Casing

Claims (5)

A fluid energy converter that converts fluid energy into rotational motion.
An output shaft, a pair of rotating plates fixed to the output shaft at intervals in the length direction, and both ends are rotatably supported by these rotating plates, and a predetermined distance from the output shaft is provided. A plurality of blade support shafts arranged in parallel and spaced around the output shaft, a pressure receiving blade fixed to each of these blade support shafts, and one end of the blade support shaft. Between the fixed gear fixed to, the fixed gear into which the output shaft is rotatably inserted, the synchronous gear fixed to the other end of each blade support shaft, and the fixed gear and the drive gear. The first rotation transmission means, which is interposed and rotates the drive gear to rotate one of the blade support shafts when the drive gear is revolved around the output shaft by the rotation of the rotary plate, and the said. A second rotation transmission means provided between a plurality of synchronous gears and rotating the plurality of synchronous gears synchronously in the same direction to rotate all the blade support shafts is provided.
The first rotation transmission means is composed of the drive gear and a belt wound around the fixed gear.
A fluid energy conversion device in which the second rotation transmitting means is configured by a belt provided around the all synchronous gears . The fluid energy conversion device according to claim 1, wherein the gear ratio of the drive gear to the fixed gear is 2. The fluid energy conversion device according to claim 1, wherein the first rotation transmission means is composed of an idle gear meshed with the drive gear and the fixed gear. The fluid energy conversion device according to claim 1, wherein the pressure receiving blade is made of lightweight plastic. The fluid energy conversion device according to claim 1, wherein a generator is continuously provided at the end of the output shaft.

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