WO2022013847A1 - Fluid power generation system and installation structure therefor - Google Patents

Abstract

Provided are a fluid power generation system for attaining a high energy generation capacity by converting energy from a fluid into electrical energy, and an installation structure therefor. The fluid power generation system comprises a fluid driven device 1A and a power generation device 1B. The fluid driven device 1A is composed of first through third rotary bodies 2A, 2B, 4 and an endless belt 3A. The power generation device 1B is composed of a rotational direction converter 5A and a power generator 6. The rotational direction converter 5A is provided between an output shaft 21b of the fluid driven device 1A and a rotary shaft 60 of the power generator 6. The endless belt 3A is wound upon the first and second rotary bodies 2A, 2B, and has first resistance members 30 installed upright on a surface thereof. The third rotary body 4 is integrally assembled to the second rotary body 2B, and has second resistance members 40 installed upright on a surface thereof. The outer end part of a shaft part 21 functions as the output shaft 21b.

Description

Fluid power generation system and its installation structure

The present invention relates to a fluid power generation system capable of efficiently converting fluid energy such as hydraulic power into electrical energy to increase power generation efficiency and its installation structure.

In recent years, in addition to the depletion of fossil fuels, global environmental problems such as global warming have become more serious, so power generation devices and power generation methods that use natural energy are attracting attention. In particular, it is expected that its importance will increase further in the future due to the CO2 emission credit problem and the introduction of the RPS (Renewable Portfolio Standard) system.

For example, a photovoltaic power generation device that uses sunlight, which is a natural energy source, is easy to install and has a relatively low power generation cost. The spread of large-scale equipment is rapidly progressing.

In addition to the conventional fixed-type photovoltaic power generation device, a portable photovoltaic power generation device that does not require installation work and can be easily transported or changed in the installation location is also attracting attention. For example, Patent Document 1 discloses a portable photovoltaic power generation device that can be installed and used in an arbitrary place such as outdoors without a power source.

Specifically, a large number of electrically connected sheet-shaped or film-shaped photovoltaic power generation sheets can be carried in a stretchable state in the storage case, and the user can carry it from the storage case at any place. By pulling out the photovoltaic power generation sheet, it is possible to use electrical equipment by efficiently using sunlight to generate electricity even in the outdoors without a power source.

In addition, many fluid drive devices that generate electricity by driving a drive device using a fluid such as wind power or hydraulic power as a working body have been proposed. For example, Patent Document 2 discloses a hydroelectric power generation device that is installed in a waterway such as a river or an agricultural waterway and uses water as a natural energy source.

Specifically, it is provided with a main body consisting of two discs arranged facing each other and paddles attached at equal intervals radially from the central axis of the discs, and the paddles in the water receive water flow pressure. As a result, the power generation device is driven by using the rotational force obtained from the water shaft to which the paddle portion is connected.

Japanese Unexamined Patent Publication No. 2006-86203 Japanese Unexamined Patent Publication No. 2012-92750

However, in the photovoltaic power generation device disclosed in Patent Document 1 described above, the amount of power generation depends on the weather and the amount of solar radiation, and is stable only in a time zone in which the amount of solar radiation during the daytime on a sunny day is relatively large. There is a problem that it cannot generate electricity.

On the other hand, in rivers, agricultural canals, etc. where the hydroelectric power generation device disclosed in Patent Document 2 is installed, the amount of water is adjusted so as to maintain a predetermined flow rate every season, so that a constant flow rate is continuously maintained. It is possible to secure it. Therefore, unlike a photovoltaic power generation device, the amount of power generation does not become unstable due to external factors such as the amount of solar radiation, and stable power generation is possible throughout the year.

However, the hydroelectric power generation device disclosed in Patent Document 2 has a large diameter of about 1.4 m at the maximum, and when installed in a river with a shallow water depth or a river with a slow flow velocity, for example, the paddle portion installs a water turbine. It is hard to get enough water pressure to rotate it, and it is not possible to obtain the expected amount of power generation.

The present invention has been made to solve the above-mentioned problems, and is a fluid power generation system capable of efficiently converting fluid energy such as hydraulic power into electric energy to obtain high power generation efficiency and a large amount of power generation, and its installation. The purpose is to provide the structure.

In order to solve the above problems, the first invention is a fluid drive device having an output shaft capable of outputting a rotational force corresponding to the fluid pressure, and a power generation operation by receiving the rotational force of the output shaft of the fluid drive device. It is a fluid power generation system including a power generation device for performing, and the fluid drive device keeps a predetermined distance between a first rotating body and a first rotating body, and the rotation center axis thereof is the rotation center of the first rotating body. The second rotating body parallel to the axis, the endless belt wound around the first rotating body and the second rotating body, and each resistance member have a concave pressure receiving surface portion for receiving fluid pressure and are endless. A plurality of first resistance members erected on the surface of the belt at predetermined intervals and a plurality of second resistance members having a pressure receiving surface portion for receiving fluid pressure are erected on the circumferential surface at predetermined intervals. A third rotating body that can rotate integrally with the second rotating body and has its rotation center axis as an output axis is provided, and the power generation device uses the rotational force of the output shaft of the fluid drive device as the rotation axis of the generator. The configuration is such that the power generation operation is performed in response to the above.
With this configuration, when a plurality of first resistance members provided on the endless belt of the fluid drive device receive fluid pressure in the fluid, the first rotating body and the second rotating body around which the endless belt is wound are formed. However, it rotates in the direction of fluid pressure. Further, the second resistance member receives the fluid pressure, and the third rotating body rotates like a water wheel. That is, the fluid pressure in the fluid causes the third rotating body to rotate along with the rotation of the second rotating body, and a large rotational energy is generated by the second rotating body and the third rotating body, and this rotational energy is generated. The rotational force corresponding to is output to the output shaft of the fluid drive device.
Then, this large rotational force is transmitted to the rotating shaft of the generator in the power generation device, and the power generation operation by the generator is performed.
As described above, in the present invention, since the large rotational energy generated by the second rotating body and the third rotating body is directly transmitted to the power generation device, the rotation efficiency is improved, and the power generation device is correspondingly improved. The amount of power generated by the generator will also increase.

According to the second aspect of the present invention, in the fluid power generation system according to the first invention, the rotation axis of the generator with respect to the rotation direction of the output shaft of the fluid drive device is provided between the output shaft of the fluid drive device and the rotation axis of the generator. The configuration is provided with a rotation direction converter capable of converting the rotation direction in the same direction or in the opposite direction.
With this configuration, if there is no change in the flow direction of the fluid, the rotation direction of the rotation axis of the generator with respect to the rotation direction of the output shaft of the fluid drive device can be set, for example, in the same direction by the rotation direction converter. can. Then, when the flow direction of the fluid is reversed, the rotation direction of the rotation shaft of the generator with respect to the rotation direction of the output shaft of the fluid drive device can be set in the opposite direction by the rotation direction converter. That is, according to the present invention, the operation of the fluid power generation system can be continued without moving the direction of the fluid power generation system according to the flow direction of the fluid.

According to a third aspect of the invention, in the fluid power generation system according to the first or second invention, the power generation device has a rotating body that can rotate by receiving the rotational force of the output shaft of the fluid driving device, and is wound around the rotating body. The structure is such that the rotational force of the output shaft is transmitted to the rotating shaft of the generator by the endless belt.
With this configuration, the rotational force of the second rotating body and the third rotating body of the fluid drive device is transmitted to the rotating body of the power generation device, and the rotational force of this rotating body is transmitted to the rotating body of the generator via the endless belt. It is transmitted to the rotating shaft. That is, according to the present invention, the rotation speed of the output shaft of the fluid drive device can be changed to the rotation speed corresponding to the size of the diameter of the rotating body of the power generation device and transmitted to the generator.

A fourth invention is the fluid power generation system according to the first or second invention, wherein the power generation device is an output shaft via a gear mechanism provided between the output shaft of the fluid drive device and the rotation shaft of the generator. The configuration is such that the rotational force of the generator is transmitted to the rotating shaft of the generator.
With this configuration, the rotational force of the second rotating body and the third rotating body of the fluid drive device is transmitted to the rotating shaft of the generator via the gear mechanism of the power generation device. That is, according to the present invention, the rotation speed of the output shaft of the fluid drive device can be changed to a size corresponding to the gear ratio of the gear mechanism of the power generation device and transmitted to the generator.

According to a fifth aspect of the present invention, in the fluid power generation system according to any one of the first to fourth inventions, a plurality of third resistance members having a pressure receiving surface portion for receiving the fluid pressure are arranged on the circumferential surface at predetermined intervals. The erected fourth rotating body is connected to at least one end side of the rotation center axis of the first rotating body or the rotation center axis of the second rotating body in the fluid drive device.
With this configuration, the third resistance member receives the fluid pressure and the fourth rotating body rotates, so that the rotational force is applied to the first or second rotating body to which the fourth rotating body is connected. Join. Since this increased rotational force is transmitted to the generator through the second rotating body and the third rotating body, the amount of power generation can be further increased.

The sixth invention is a plurality of auxiliary rotating bodies whose rotation center axis is parallel to the rotation center axes of the first and second rotating bodies in the fluid power generation system according to any one of the first to fifth inventions. Is arranged side by side between the first rotating body, the second rotating body, and the endless belt, and each of the plurality of auxiliary rotating bodies is supported so as to be movable up and down.
With this configuration, the first rotating body and the second rotating body are moved so that the endless belt is positioned substantially parallel to the fluid surface in the vicinity of the fluid surface, and a plurality of bodies located on the endless belt portion on the fluid surface side. The fluid power generation system can be installed so that the first resistance member of the above is completely submerged in the fluid. As a result, the first resistance member in the fluid receives the fluid pressure, and the first and second rotating bodies rotate together with the endless belt. At this time, even if the plurality of auxiliary rotating bodies are arranged at the same horizontal positions as the first and second rotating bodies, the first and second rotating bodies rotate without any trouble.
Here, when the endless belt is loosened or displaced, the predetermined auxiliary rotating body can be appropriately moved upward to maintain the tension of the endless belt. As a result, not only can the endless belt be prevented from loosening and slipping, but also the first resistance member can be stabilized.
Further, by moving the auxiliary rotating body of one of the plurality of auxiliary rotating bodies into the fluid and bending the endless belt portion on the fluid surface side into a triangular shape, the length of the endless belt portion in the fluid can be adjusted. It can be longer than when it is in a normal horizontal shape. As a result, the fluid pressure can be received by many first resistance members in the fluid, and the rotational force can be further improved.

According to a seventh aspect of the present invention, in the fluid power generation system according to any one of the first to sixth inventions, the first resistance member is a pressure receiving surface portion made of a flexible material, and the pressure receiving surface portion is an endless belt. It is configured to be formed of a support member that stands upright and supports the surface of the above.
With this configuration, the first resistance member receives fluid pressure at the pressure receiving surface portion facing the flow to rotate the first rotating body and the second rotating body. Then, when the flow direction of the fluid changes, the pressure receiving surface portion formed of the flexible material bends in the flow direction. As a result, the pressure receiving surface portion changes so as to face the flow, and receives the fluid pressure to rotate the first rotating body and the second rotating body.
That is, according to the present invention, the direction of the pressure receiving surface portion of the first resistance member changes according to the change in the direction of the fluid flow. Therefore, when the direction of the fluid flow changes, the flow of the fluid power generation system is changed. The operation of the fluid power generation system can be continued without moving it according to the orientation.

In the eighth invention, in the fluid power generation system according to any one of the first to sixth inventions, a plurality of first resistance members are provided on the surface of an endless belt so that the pressure receiving surface portions are alternately oriented in opposite directions. It shall be configured to be erected at predetermined intervals.
With this configuration, even if the flow of the fluid changes, the first resistance member having the pressure receiving surface portion facing the direction of the flow catches the fluid, so that the fluid power generation system does not move in correspondence with the direction of the flow. The operation of the power generation system can be continued.

A ninth aspect of the invention is a fluid power generation system according to any one of the first to sixth inventions, wherein the first resistance member is joined back to back with a pair of pressure receiving surface portions and a pair of pressure receiving surfaces. The structure is formed by a support member that supports the face portion by standing upright on the surface of the endless belt.
With this configuration, even if the fluid flow changes, the pressure receiving surface portions facing the flow direction of the pair of pressure receiving surface portions joined back to back with each other catch the fluid, so that the fluid power generation system can correspond to the flow direction. The operation of the fluid power generation system can be continued without moving.

A tenth aspect of the present invention is the fluid power generation system according to any one of the first to ninth inventions, comprising first and second rotating bodies, endless belts, and a plurality of first resistance members in a fluid drive device. At least the periphery of the mechanism portion is surrounded by a plurality of first resistance members in a non-contact state, and a frame-shaped cover body that protects the mechanism portion from wave wind is provided.
With such a configuration, even if a storm, flooding, or the like occurs and a wave wind occurs, the cover body protects the mechanical portion composed of the first and second rotating bodies, the endless belt, and the plurality of first resistance members. ..

According to the eleventh invention, in the fluid power generation system according to the tenth invention, the cover body has a structure having an upper surface portion that covers the mechanical portion of the fluid drive device from above.
With such a configuration, the mechanical portion composed of the first and second rotating bodies, the endless belt, and the plurality of first resistance members is protected not only from the surroundings but also from above by the cover body.

The twelfth invention is an installation structure of a fluid power generation system for installing a fluid power generation system according to any one of the sixth to eleventh inventions on a fluid, and is provided by a support fixed in the fluid. By supporting each of the first, second and third rotating bodies and the plurality of auxiliary rotating bodies in the fluid drive device so as to be movable up and down, the endless belt is positioned almost parallel to the fluid surface in the vicinity of the fluid surface. The first rotating body and the second rotating body are positioned, and a plurality of first resistance members located in the endless belt portion on the fluid surface side are completely submerged in the fluid.
With this configuration, the first resistance member in the fluid receives the fluid pressure, and the first and second rotating bodies and the endless belt rotate. At this time, even if the plurality of auxiliary rotating bodies are arranged at the same horizontal positions as the first and second rotating bodies, the first and second rotating bodies rotate without any trouble.

A thirteenth invention is an installation structure of a fluid power generation system according to a twelfth invention, in which one or more auxiliary rotating bodies among a plurality of auxiliary rotating bodies are positioned in a fluid so as to be on the fluid surface side. The endless belt portion and the plurality of first resistance members located in the endless belt portion are completely submerged in the fluid.
With this configuration, since one or more auxiliary rotating bodies of the plurality of auxiliary rotating bodies are positioned in the fluid, the endless belt portion on the fluid surface side is curved in a polygonal shape, and the endless belt in the fluid is formed. The length of the portion is longer than when it is in a normal horizontal shape. As a result, many first resistance members completely submerged in the fluid are subjected to the fluid pressure, and the rotational force is further increased.
Further, by setting the first rotating body, the second rotating body, and the endless belt to be above the fluid surface, and setting the one or more auxiliary rotating bodies to be positioned in the fluid. Since the first rotating body, the second rotating body, and the endless belt portion on the fluid surface are not subjected to resistance by the fluid, the rotational efficiency between the first rotating body and the second rotating body is improved. ..

According to the fourteenth invention, in the fluid power generation system according to the sixth invention, the first and second rotating bodies are positioned and fixed above the surface of the fluid, and at the most downstream of the plurality of auxiliary rotating bodies. The auxiliary rotating body to be located is completely submerged in the fluid.
With such a configuration, the plurality of first resistance members can efficiently secure the fluid pressure, and as a result, extremely large electric power can be generated.
That is, the force that each first resistance member receives from the fluid decreases depending on the size and number of fluid shields that exist in front of it. Therefore, in a fluid power generation system in which all of the plurality of auxiliary rotating bodies are arranged horizontally and a plurality of first resistance members in the fluid are arranged in a horizontal row, each first resistance member receives from the fluid. The force is maximum for the first resistance member in the uppermost stream, and becomes smaller as the first resistance member is located on the downstream side, such as the second, third, and fourth. Moreover, since the shielding area of the front first resistance member that shields the rear first resistance member is the entire front first resistance member, the loss of force that the rear first resistance member should receive is very large. Is big. Therefore, in a fluid power generation system having such a configuration, it is not possible to efficiently secure the fluid pressure due to the fluid.
However, since the fluid power generation system of the present invention has a configuration in which the auxiliary rotating body located at the most downstream of the plurality of auxiliary rotating bodies is completely submerged in the fluid, the auxiliary rotating body located at the most downstream is completely submerged. The plurality of first resistance members on the upstream side of the body are not in a horizontal row but in a state of being inclined and arranged in the depth direction. Therefore, the shielding area of the front first resistance member that shields the rear first resistance member becomes very small, and the force acting on each of the first resistance members is the first resistance member. It is much larger than a system in which the above are arranged in a horizontal row.
Moreover, since the auxiliary rotating body located at the most downstream side among the plurality of auxiliary rotating bodies is completely submerged in the fluid, the number of the first resistance members on the upstream side of the auxiliary rotating body is set to 1 laterally. It can be set to the same number or more as the number of first resistance members in the case of a row.
As described above, the fluid power generation system of the present invention has a configuration in which the shielding area to each first resistance member is made as small as possible and the fluid pressure is received by as many first resistance members as possible. The pressure can be efficiently secured, and as a result, an extremely large amount of electric power can be generated.

According to the fifteenth invention, in the fluid power generation system according to the eighth invention, each first resistance member is provided with a pressure receiving surface portion having a substantially semicircular cross section and the pressure receiving surface portion facing the length direction of the endless belt. The pressure receiving surface portion is formed of a support member that stands upright on the surface of the endless belt.
Since the pressure receiving surface portion of the first resistance member is formed in a substantially semicircular cross section, when the fluid flow is received on the concave surface side of the pressure receiving surface portion, an extremely large force can be received from the fluid. However, when the flow changes in the opposite direction, the flow of the fluid is received on the convex side of the first resistance member, and the force that can be received from the fluid is drastically reduced.
However, the present invention has a configuration in which a plurality of first resistance members are erected on the surface of the endless belt so that the pressure receiving surface portions having a substantially semicircular cross section are alternately opposed to each other. Therefore, fluid power generation is performed. Once the system is installed, the fluid flow can always be received on the concave side of the pressure receiving surface, even if the direction of the fluid flow changes.

According to a sixth aspect of the present invention, in the fluid power generation system according to the ninth aspect, each first resistance member has a pair of pressure receiving surface portions having a substantially semicircular cross section and the pair of pressure receiving surface portions having an endless belt. The pair of pressure receiving surface portions are formed of a support member that stands upright on the surface of the endless belt so as to face the length direction, so that each of the pair of pressure receiving surface portions in each first resistance member faces each other. In addition, the pair of pressure receiving surfaces are joined back to back.
With this configuration, once the fluid power generation system of the present invention is installed, the fluid flow can always be received on the concave side of the pressure receiving surface portion even when the flow direction changes.

As described in detail above, according to the present invention, the rotational force of the second rotating body and the third rotating body can be directly transmitted to the power generation device, so that the rotational efficiency is improved, and the rotational efficiency is improved accordingly. The amount of power generated by the generator of the power generation device can be increased, and as a result, high power generation efficiency and large power generation can be obtained, which is an excellent effect.
Further, according to the third and fourth inventions, there is an effect that the rotation speed of the output shaft of the fluid drive device can be changed to a desired rotation speed and transmitted to the generator.
Further, according to the fifth, sixth and thirteenth inventions, there is an effect that the amount of power generation can be further increased.

In particular, according to the second, seventh to ninth, fifteenth and sixteenth inventions, even when the direction of the fluid flow changes, the fluid power generation system does not move in correspondence with the direction of the flow, and the fluid does not move. It has the effect of being able to continue the operation of the power generation system.
Further, according to the tenth and eleventh inventions, there is an effect that the fluid driving device can be protected from a storm, flooding and the like.

Further, according to the fourteenth invention, there is an effect that the fluid pressure can be efficiently secured, and as a result, extremely large electric power can be generated.

It is a perspective view which shows the fluid power generation system which concerns on 1st Embodiment of this invention. It is a top view of a fluid power generation system. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is a perspective view which shows the 1st resistance member. FIG. 4 is a cross-sectional view taken along the line BB in FIG. It is a schematic diagram for demonstrating the operation which a fluid power generation system shows. It is the schematic sectional drawing which shows the modification of the 2nd resistance member in 1st Example. It is a top view which shows the fluid power generation system which concerns on 2nd Embodiment of this invention. It is a top view which shows the modification of the 2nd Example. It is sectional drawing which shows the main part of the fluid power generation system which concerns on 3rd Embodiment of this invention. It is a schematic diagram which shows the operation of a fluid power generation system, FIG. 11A shows the operation when the water flow direction is the right direction of the figure, and FIG. The operation of the case is shown. It is the schematic sectional drawing which shows the modification of the 2nd resistance member in 3rd Example. It is a schematic sectional drawing which shows the main part of the fluid power generation system which concerns on 4th Embodiment of this invention. It is a perspective view which shows the pressure receiving surface part of the 1st resistance member. It is sectional drawing of the pressure receiving surface part. It is a schematic diagram which shows the fluid power generation system in which all the pressure receiving surface portions face the same direction. It is a schematic diagram which shows the state which assembled and fixed the whole fluid power generation system in the reverse direction. It is the schematic sectional drawing which shows the modification of the 2nd resistance member in 4th Example. It is a perspective view which shows the main part of the fluid power generation system which concerns on 5th Embodiment of this invention. It is a schematic sectional drawing which shows the main part. It is the schematic sectional drawing which shows the modification of the 2nd resistance member in 5th Example. It is a perspective view which shows the modification of the 1st resistance member applied to 1st, 2nd Example and 4th Example. It is an exploded perspective view of the modification. It is a side view which shows by partially breaking the 1st resistance member of the modification. It is a side view for demonstrating the operation shown by the 1st resistance member of the modification. It is a perspective view which shows the modification of the 1st resistance member applied to 3rd Example. It is a perspective view which shows the modification of the 1st resistance member applied to 5th Example. It is an exploded perspective view of the modification. It is a side view which shows by partially breaking the 1st resistance member of the modification. It is a perspective view which shows the fluid power generation system which concerns on 6th Embodiment of this invention. It is a schematic diagram which shows the installation state of the fluid power generation system of 6th Embodiment. It is a schematic diagram which shows the installation structure which prevented the endless belt from loosening and the like. It is a schematic diagram which shows the installation structure which increases the rotational force of the fluid power generation system of this Example. It is a schematic diagram which shows the ascending state of a fluid power generation system. It is a schematic diagram which shows the state which only one auxiliary rotating body is submerged in water. It is a perspective view which shows the fluid power generation system which concerns on 7th Embodiment of this invention. It is a schematic diagram which shows the installation structure of the fluid power generation system with respect to the flowing water to the right in the figure. It is a schematic diagram which shows the installation structure of the fluid power generation system with respect to the flowing water to the left in the figure. It is a perspective view which shows the fluid power generation system which concerns on 8th Embodiment of this invention. It is a top view of a fluid power generation system. FIG. 38 is a cross-sectional view taken along the line CC of FIG. 38. It is sectional drawing which shows the fluid power generation system which concerns on 9th Embodiment of this invention. It is a top view which shows the fluid power generation system which concerns on 10th Embodiment of this invention. It is a top view which shows the fluid power generation system which concerns on 11th Embodiment of this invention. It is a top view which shows the fluid power generation system which concerns on the twelfth embodiment of this invention. It is a top view which shows the fluid power generation system which concerns on 13th Embodiment of this invention. It is a top view which shows the fluid power generation system which concerns on 14th Embodiment of this invention. It is a schematic diagram which shows the main part of the fluid power generation system which concerns on the fifteenth embodiment of this invention. It is a schematic diagram for demonstrating the action and effect when the 1st resistance member in water is arranged in a horizontal row. It is a schematic diagram for demonstrating the operation and effect of the fifteenth embodiment. It is a schematic diagram which shows the main part of the modification of the fifteenth embodiment. It is a side view which shows by partially breaking the 1st resistance member which has only the auxiliary leg part and the stopper on the downstream side.

Hereinafter, the best form of the present invention will be described with reference to the drawings.

(Example 1)
1 is a perspective view showing a fluid power generation system according to a first embodiment of the present invention, FIG. 2 is a plan view of the fluid power generation system, and FIG. 3 is a sectional view taken along the line AA of FIG. Is.
As shown in FIG. 1, the fluid power generation system 1-1 of this embodiment includes a fluid drive device 1A and a power generation device 1B.

The fluid drive device 1A is a device for outputting a rotational force corresponding to the fluid pressure, and is an extension portion 21b of a shaft portion 21 to which a second rotating body 2B and a third rotating body 4 described later are assembled. Is the output axis.
The fluid driving device 1A has a first rotating body 2A, a second rotating body 2B, an endless belt 3A, a plurality of first resistance members 30, and a third rotating body 4. Is attached to the support 10.

Specifically, in the support 10, columns 11A and 12A having the same height are arranged side by side in the length direction of the endless belt 3A. The columns 12B and 12C having the same height as the columns 12A are arranged side by side in the width direction of the endless belt 3A so as to face the columns 12A. Further, the columns 11B having the same height as the columns 11A are arranged side by side in the width direction of the endless belt 3A so as to face the columns 11A.

The first rotating body 2A has a shaft portion 20 as a rotation center axis, and both ends of the shaft portion 20 are rotatably attached to columns 11A and 11B.
The second rotating body 2B has the same shape as the first rotating body 2A, and has a shaft portion 21 as a rotation center axis like the first rotating body 2A. Both ends of the shaft portion 21 are rotatably attached to the columns 12A, 12B, 12C.
That is, the first rotating body 2A and the second rotating body 2B maintain a constant distance in a state where the shaft portions 20 and 21 are parallel to each other, and the endless belt 3A is such a first rotating body. It is wound around 2A and the second rotating body 2B.
The endless belt 3A is a wide strip-shaped body, and can be formed of a multi-layered rubber member, a synthetic resin, a metal chain belt, or the like.

The plurality of first resistance members 30 are erected on the surface of the endless belt 3A.
FIG. 4 is a perspective view showing the first resistance member, and FIG. 5 is a cross-sectional view taken along the line BB of FIG.
As shown in these figures, each first resistance member 30 is composed of a pressure receiving surface portion 31 and a support member 32 holding the pressure receiving surface portion 31.
The pressure receiving surface portion 31 is a portion for receiving fluid pressure, and is recessed in a cross-sectional arc shape. The length of the pressure receiving surface portion 31 is set to be substantially equal to the width of the endless belt 3A. The material of the pressure receiving surface portion 31 is arbitrary, but in this embodiment, a concavely curved metal plate is applied.
The support member 32 has a frame portion 32a and fixing portions 32b and 32b formed at both ends of the frame portion 32a. The frame portion 32a is arranged along the width direction of the endless belt 3A, and the fixing portions 32b and 32b are fixed to the endless belt 3A by screws or the like.
Then, the pressure receiving surface portion 31 is fitted in the frame portion 32a, and the upper end 31a and the lower end 31b thereof are fixed to the frame portion 32a.
That is, a plurality of first resistance members 30 are erected on the surface of the endless belt 3A at regular intervals with the concave pressure receiving surface portion 31 facing in the length direction of the endless belt 3A.

As shown in FIGS. 1 to 3, the third rotating body 4 is arranged between the columns 12B and 12C of the support 10, and is assembled to the shaft portion 21 of the second rotating body 2B. That is, the third rotating body 4 is assembled so as to rotate into one body with the second rotating body 2B. Then, the extending portion 21b of the shaft portion 21 extending outward from the third rotating body 4 functions as an output shaft.
Further, a plurality of second resistance members 40 are erected on the circumferential surface 4a of the third rotating body 4 at regular intervals. Each second resistance member 40 is a flat plate-shaped member, and both sides thereof function as pressure receiving surface portions for receiving fluid pressure.

On the other hand, the power generation device 1B is a device that receives the rotational force of the output shaft 21b of the fluid drive device 1A to perform power generation operation. The power generation device 1B receives the rotational force of the output shaft 21b of the fluid drive device 1A by the rotation shaft 60 of the generator 6 to perform power generation operation.
Specifically, the power generation device 1B includes a rotation direction converter 5A and a generator 6. The rotation direction converter 5A is provided between the output shaft 21b of the fluid drive device 1A and the rotation shaft 60 of the generator 6. The rotation direction converter 5A can manually convert the rotation direction of the output shaft 21b of the fluid drive device 1A and the rotation direction of the rotation shaft 60 of the generator 6 in the same direction or in the opposite direction. Since all well-known converters can be applied as such a rotation direction converter 5A, the description thereof is omitted here.

Next, the operation shown by the fluid power generation system 1-1 of this embodiment will be described.
FIG. 6 is a schematic diagram for explaining the operation shown by the fluid power generation system.
As shown in FIG. 6, the lower portion of the endless belt 3A of the fluid drive device 1A is slightly below the water surface S, and the concave pressure receiving surface portion 31 of the first resistance member 30 in the underwater W is formed. The support 10 is submerged in water W and fixed so as to face the upstream side. As a result, among the plurality of first resistance members 30 of the endless belt 3A, the first resistance member 30 located on the lower side of the endless belt 3A is located below the water surface S. At the same time, among the plurality of second resistance members 40 of the third rotating body 4, the second resistance member 40 located on the lower side of the third rotating body 4 is also located below the water surface S.
In such a state, the pressure receiving surface portions 31 of the plurality of first resistance members 30 in the water W receive the fluid pressure, and the first resistance member 30 in the water W receives the force to the downstream side. As a result, the first resistance member 30 moves to the downstream side, and the entire endless belt 3A starts to move as indicated by the arrow. As a result, the moving force of the endless belt 3A is transmitted to the first rotating body 2A and the second rotating body 2B, and the first rotating body 2A and the second rotating body 2B rotate at the same time in the arrow direction.
Further, since the second resistance member 40 of the third rotating body 4 also receives the fluid pressure, the third rotating body 4 rotates in the same direction as the second rotating body 2B like a water wheel. As a result, a large rotational energy is generated by the second rotating body and the third rotating body, and the rotational force corresponding to the rotational energy is output to the output shaft 21b of the fluid drive device 1A.

Then, this large rotational force is transmitted from the output shaft 21b of the fluid drive device 1A shown in FIG. 2 to the rotation shaft 60 of the generator 6 through the rotation direction converter 5A of the power generation device 1B, and the power generation operation by the generator 6 is performed. Will be done.

At this time, the rotation direction of the rotation shaft 60 of the generator 6 of the power generation device 1B with respect to the rotation direction of the output shaft 21b of the fluid drive device 1A can be changed by the rotation direction converter 5A.
For example, at present, when the rotation direction of the rotation shaft 60 of the generator 6 is the same as the rotation direction of the output shaft 21b of the fluid drive device 1A, the rotation direction of the rotation shaft 60 is opposite to the rotation direction of the output shaft 21b. To change the direction, the rotation direction of the rotation shaft 60 can be changed in the direction opposite to the rotation direction of the output shaft 21b by manually operating the rotation direction converter 5A.

In this embodiment, an example in which the length of the pressure receiving surface portion 31 of the first resistance member 30 is set to be substantially equal to the width of the endless belt 3A has been described, but the length of the pressure receiving surface portion 31 is set to that of the endless belt 3A. It may be set slightly shorter than the width. With such a setting, it is possible to prevent the endless belt 3A from coming off from the first and second rotating bodies 2A and 2B, and to obtain stable rotation of the endless belt 3A.

Further, in this embodiment, as the second resistance member erected on the third rotating body 4, the second resistance member 40 formed of a flat plate-shaped member is applied, but as shown in FIG. 7, it is endless. A resistance member 40A having the same structure as the first resistance member 30 erected on the belt 3A may be applied as the second resistance member.

(Example 2)
Next, a second embodiment of the present invention will be described.
FIG. 8 is a plan view showing a fluid power generation system according to a second embodiment of the present invention.
The fluid power generation system 1-2 of this embodiment is different from the fluid power generation system 1-1 of the first embodiment in that a fourth rotating body 4A is additionally installed in the fluid drive device 1A.
The fourth rotating body 4A of the fluid driving device 1A has the same shape as the third rotating body 4 of the fluid driving device 1A in the first embodiment, and has the same structure as the second resistance member 40. However, they are erected on the peripheral surface of the fourth rotating body 4A at predetermined intervals.
The fourth rotating body 4A is attached to one end 21a of the shaft portion 21 of the second rotating body 2B. Specifically, one end 21a of the shaft portion 21 is set to be long, the fourth rotating body 4A is attached to the one end 21a, and the tip of the one end 21a is rotatably formed by the support column 12D. I supported it.

Since the fluid power generation system 1-2 of this embodiment has such a configuration, the third resistance member 41 of the fourth rotating body 4A receives the fluid pressure, and the fourth rotating body 4A rotates. As a result, extremely large rotational energy is generated by the second rotating body 2B, the third rotating body 4, and the fourth rotating body 4A. Then, the rotational force corresponding to this rotational energy is output to the output shaft 21b of the fluid drive device 1A and transmitted to the rotational shaft 60 of the generator 6 through the rotational direction converter 5A.

In this embodiment, an example in which the fourth rotating body 4A is connected to the shaft portion 21 of the second rotating body 2B is shown, but one fourth rotating body 4A is connected to the shaft of the second rotating body 2B. Instead of the portion 21, it may be connected to either one end portion 20a or the other end portion 20b of the shaft portion 20 of the first rotating body 2A. Alternatively, the two fourth rotating bodies 4A are either one end portion 21a of the shaft portion 21 of the second rotating body 2B, one end portion 20a of the shaft portion 20 of the first rotating body 2A, or the other end portion 20b. Or may be connected to each of the two. Further, as shown in FIG. 9, the three fourth rotating bodies 4A are the one end portion 21a of the shaft portion 21 of the second rotating body 2B and the one end portion 20a of the shaft portion 20 of the first rotating body 2A. , The other end 20b may be connected to each other.
Since other configurations, actions, and effects are the same as those in the first embodiment, the description thereof will be omitted.

(Example 3)
Next, a third embodiment of the present invention will be described.
10 is a cross-sectional view showing a main part of the fluid power generation system according to the third embodiment of the present invention, FIG. 11 is a schematic view showing the operation of the fluid power generation system, and FIG. 11A is a schematic view showing the operation of the fluid power generation system. The operation when the water flow direction is the right direction in the figure is shown, and FIG. 11B shows the operation when the water flow direction is the left direction in the figure.
In the fluid power generation system 1-3 of this embodiment, the structure of the first resistance member 30 in the fluid drive device 1A is different from that of the first and second embodiments.

As shown in FIG. 10, the first resistance member 30 applied to this embodiment is composed of a pressure receiving surface portion 31A formed of a flexible material and a support member 32 that supports the pressure receiving surface portion 31A. ..
The pressure receiving surface portion 31A may be made of a flexible material, and the type thereof may be arbitrary, such as cloth, synthetic fiber, and synthetic resin. In this embodiment, a cloth material was applied as the pressure receiving surface portion 31A.
When the fluid pressure is applied to the pressure receiving surface portion 31A indicated by the solid line from the direction of the arrow indicated by the alternate long and short dash line, the pressure receiving surface portion 31A bends as shown by the alternate long and short dash line due to the fluid pressure and receives the fluid pressure like a sail of a yacht. .. Further, when the direction of the fluid pressure changes in the direction indicated by the two-dot chain line, the pressure receiving surface portion 31A in the one-dot chain line state bends in the fluid pressure direction as shown by the two-dot chain line, and the fluid is like a sail of a yacht. Under pressure.

Since the first resistance member 30 of the fluid power generation system 1-3 of this embodiment has the above configuration, as shown in FIG. 11A, when the water flow direction is the right direction, the first resistance member 30 is used. The pressure receiving surface portion 31A of the resistance member 30 receives the fluid pressure and bends to the right, and the first rotating body 2A, the second rotating body 2B, and the endless belt 3A are applied to the first resistance member 30. It rotates counterclockwise due to pressure. At the same time, the third rotating body 4 also rotates counterclockwise.
Then, as shown in FIG. 11B, when the water flow direction changes to the left, the pressure receiving surface portion 31A of the first resistance member 30 receives the fluid pressure and bends to the left. As a result, the first rotating body 2A, the second rotating body 2B, and the endless belt 3A rotate clockwise. At the same time, the third rotating body 4 also rotates clockwise.
That is, according to the fluid power generation system 1-3 of this embodiment, when the fluid power generation system 1-3 is used in a place where the flow changes, it is necessary to move the direction of the entire fluid power generation system 1-3 according to the change in the flow direction. No. The operation of the fluid power generation system 1-3 can be continued without considering the water flow direction.

In this embodiment, as the second resistance member erected on the peripheral surface of the third rotating body 4, the second resistance member 40 formed of a flat plate-shaped member was applied, but as shown in FIG. In addition, the resistance member 40B having the same structure as the first resistance member 30 applied to the third embodiment may be applied as the second resistance member.
Since other configurations, actions and effects are the same as those in the first and second embodiments, the description thereof will be omitted.

(Example 4)
Next, a fourth embodiment of the present invention will be described.
FIG. 13 is a schematic cross-sectional view showing a main part of the fluid power generation system according to the fourth embodiment of the present invention.
In the fluid power generation system 1-4 of this embodiment, the mounting structure of the first resistance member 30 in the fluid drive device 1A is different from that of the first to third embodiments.

As shown in FIG. 13, in the fluid power generation system 1-4 of this embodiment, the plurality of first resistance members 30 are erected on the surface of the endless belt 3A at regular intervals so as to be alternately reversed. Has been done. Specifically, a plurality of first resistance members 30 are alternately arranged so that the pressure receiving surface portion 31 faces in the opposite direction.
As a result, the first resistance member 30 having the pressure receiving surface portion 31 pointing to the left receives the fluid pressure in the direction indicated by the solid line arrow, and the fluid pressure in the direction indicated by the two-dot chain arrow has the receiving pressure surface portion 31 pointing to the right. The first resistance member 30 can receive it.

Since the first resistance member 30 of the fluid power generation system 1-4 of this embodiment is arranged as described above, even when the first resistance member 30 is used in a place where the flow changes, the fluid power generation system 1-4 The operation can be continued without moving the entire direction according to the change in the water flow direction.

This matter will be explained in detail.
14 is a perspective view showing the pressure receiving surface portion 31 of the first resistance member 30, FIG. 15 is a cross-sectional view of the pressure receiving surface portion 31, and FIG. 16 is a fluid in which all the pressure receiving surface portions 31 face the same direction. FIG. 17 is a schematic view showing a power generation system, and FIG. 17 is a schematic view showing a state in which the entire fluid power generation system is assembled and fixed in the opposite direction.

As shown in FIGS. 14 and 15, the pressure receiving surface portion 31 of the first resistance member 30 of this embodiment is formed in a shape having a substantially semicircular cross section, and has a concave surface side 31c and a convex surface side 31d. ..
As shown in FIG. 16, in a fluid power generation system using the pressure receiving surface portion 31 having such a shape, it is necessary to install the first resistance member 30 so that the concave surface side 31c of the pressure receiving surface portion 31 faces in the direction of the water flow. There is. That is, power is generated by receiving the force of the water flow on the concave side 31c of the pressure receiving surface portion 31 having a substantially semicircular cross section.

By the way, as shown in FIG. 14, when the pressure receiving surface portion 31 is a member having a horizontal width a (m), a vertical width b (m), and a drag coefficient C, the maximum force F (N) received from the water flow is as follows. It is represented by the formula (a).
F = C x 1000 x U ² x ab ... (a)
Here, U is the relative speed (m / s) of the water flow with respect to the pressure receiving surface portion 31, and is the difference between the speed of the water flow and the moving speed of the pressure receiving surface portion 31.
As shown in the above equation (a), the force F received by each pressure receiving surface portion 31 from the water flow is proportional to the drag coefficient C, and the drag coefficient C corresponds to the shape of the surface receiving the water flow. Specifically, when the pressure receiving surface portion 31 has a substantially semicircular cross section, the drag coefficient C of the concave surface side 31c is "1.33", which is an extremely large value. Therefore, each first resistance member 30 receives an extremely large force F from the water flow through the pressure receiving surface portion 31, and as a result, the fluid power generation system provided with such a first resistance member 30 receives a large power generation. Can be obtained.

As described above, in the fluid power generation system in which all the pressure receiving surface portions 31 face in the same direction, it is necessary to assemble and fix the concave surface side 31c of the pressure receiving surface portion 31 on the water so as to face the direction of the water flow. However, the water flow at this fixed location is not always in the same direction. In some places, the water flow may change in the opposite direction after the fluid power generation system is assembled and fixed.
In such a case, as shown by the two-dot chain arrow in FIG. 15, the pressure receiving surface portion 31 receives the force of the water flow on the convex surface side 31d. However, the drag coefficient C on the convex side 31d is "0.34", which is an extremely small value. That is, the force F received by the pressure receiving surface portion 31 becomes about one-fourth of the force received by the concave surface side 31c, and the power generation is drastically reduced, making it unusable.

Therefore, in order to maintain the desired power generation even when the direction of the water flow changes, the endless belt 3A is rotated in the first and second directions so that the force of the water flow is received by the concave side 31c of the pressure receiving surface portion 31. It is necessary to rewind the body 2A and 2B in the opposite direction. When this rewinding work is difficult, as shown in FIG. 17, not only the first and second rotating bodies 2A and 2B and the endless belt 3A, but also the third rotating body and the power generation device are included. It is necessary to move the entire fluid power generation system in the opposite direction to assemble and fix it.
As described above, the work of rewinding the endless belt 3A and changing the orientation of the entire fluid power generation system requires a long time and considerable labor. And during that time, the power generation work cannot be continued. Therefore, the place where such a fluid power generation system is assembled and fixed is limited to a river or the like where the direction of the water flow hardly changes.

However, in the fluid power generation system 1-4 of this embodiment, as described above, the pressure receiving surface portions 31 alternately reverse the plurality of first resistance members 30 having the pressure receiving surface portions 31 having a substantially semicircular cross section. The structure is such that the endless belt 3A is erected on the surface of the endless belt 3A at predetermined intervals. Therefore, if the fluid power generation system 1-4 is assembled and fixed at a desired location, as shown by the solid arrow in FIG. 13, when the flow direction is in the right direction, the first resistance having the pressure receiving surface portion 31 facing left is provided. The member 30 can receive the force of the water flow to the maximum through the concave side 31c having a large drag coefficient C. On the contrary, as shown by the two-dot chain arrow in FIG. 13, when the flow direction is the left direction, the first resistance member 30 having the pressure receiving surface portion 31 facing right has a large resistance coefficient C for the force of the water flow. It can be received to the maximum through the concave side 31c.
That is, if the fluid power generation system 1-4 of this embodiment is assembled and fixed once, the endless belt 3A can be rewound and the fluid can be rewound even in the sea where the tidal current may change frequently four times or more a day. The power generation work can be continued without changing the direction of the entire power generation system.

In this embodiment, as the second resistance member erected on the peripheral surface of the third rotating body 4, the second resistance member 40 formed of a flat plate-shaped member was applied, but as shown in FIG. In addition, the resistance member 40C having the same structure and arrangement as the first resistance member 30 applied to the fourth embodiment may be applied as the second resistance member.
Since other configurations, actions and effects are the same as those in the first to third embodiments, the description thereof will be omitted.

(Example 5)
Next, a fifth embodiment of the present invention will be described.
FIG. 19 is a perspective view showing a main part of the fluid power generation system according to the fifth embodiment of the present invention, and FIG. 20 is a schematic cross-sectional view showing the main part.
In the fluid power generation system 1-5 of this embodiment, the structure of the first resistance member 30'in the fluid drive device 1A is different from that of the first to fourth embodiments.

As shown in FIG. 19, the first resistance member 30'of this embodiment has resistance members 30A and 30B having the same structure as the first resistance member 30 applied in the first embodiment, and these resistances are present. The structure is such that the members 30A and 30B are joined back to back. Specifically, the pressure receiving surface portion 31 of the resistance member 30A facing left in the figure and the pressure receiving surface portion 31 of the resistance member 30B facing right in the figure are joined back to back via the intermediate member 33.

Since the first resistance member 30'of the fluid power generation system 1-5 of this embodiment has the above-mentioned structure, the fluid pressure in the right direction indicated by the solid line arrow in FIG. 20 is the first resistance member 30. It is received by the pressure receiving surface portion 31 of the resistance member 30B, and the fluid pressure in the left direction indicated by the two-dot chain arrow can be received by the pressure receiving surface portion 31 of the resistance member 30A of the first resistance member 30'.
As a result, even when the fluid power generation system 1-5 is used in a place where the flow changes, the operation can be continued without moving the direction of the entire fluid power generation system 1-5 according to the change in the flow direction.

Specifically, as shown in FIG. 19, each first resistance member 30'has a pair of resistance members 30A and 30B, and the pressure receiving surface portions 31 and 31 of the pair of resistance members 30A and 30B have substantially a cross section. It is formed in a semicircular shape. Then, the convex side 31d, 31d of the pressure receiving surface portions 31, 31 are joined to the intermediate member 33, respectively, so that the concave surface sides 31c, 31c of the pressure receiving surface portions 31, 31 face in opposite directions to each other.
Therefore, similarly to the fluid power generation system 1-4, when the fluid power generation system 1-5 of this embodiment is assembled and fixed at a desired location, the flow direction is to the right as shown by the solid line arrow in FIG. The resistance member 30A having the pressure receiving surface portion 31 facing to the left receives the force of the water flow to the maximum through the concave surface side 31c having a large drag coefficient C. On the contrary, as shown by the two-dot chain arrow in FIG. 20, when the flow direction is the left direction, the resistance member 30B having the pressure receiving surface portion 31 facing to the right exerts the force of the water flow on the concave side 31c having a large drag coefficient C. Receive maximum through.

In this embodiment, the second resistance member 40 formed of a flat plate-shaped member is applied as the second resistance member erected on the peripheral surface of the third rotating body 4, as shown in FIG. 21. In addition, the resistance member 40D having the same structure as the first resistance member 30'applied to in the fifth embodiment may be applied as the second resistance member.
Since other configurations, actions and effects are the same as those in the first to fourth embodiments, the description thereof will be omitted.

(Modification 1)
Here, a modification of the first resistance member 30 applied to the first, second and fourth embodiments will be described.
FIG. 22 is a perspective view showing a modified example of the first resistance member 30 applied to the first, second embodiment and the fourth embodiment, and FIG. 23 is an exploded perspective view of the present modified example. FIG. 24 is a side view showing the first resistance member of this modified example partially broken.
A large water pressure may be applied to the first resistance member depending on the installation location, and it is necessary to pay attention to its durability. In particular, this tendency is remarkable when the first resistance member is made large.
Therefore, in this modification, as shown in FIG. 22, the first resistance member 30C having a stronger structure than the first resistance member 30 applied to the first, second and fourth embodiments is used. offer.

That is, as shown in FIG. 23, the support member 32 is composed of a frame portion 32a, a long fixing portion 32b, and four stoppers 34, the fixing portion 32b is fixed to the endless belt 3A, and the frame portion 32a is formed. It is rotatably attached to the fixing portion 32b. The four stoppers 34 are the edges of the endless belt 3A and are arranged on both sides of the frame portion 32a.
Specifically, the frame portion 32a has a horizontal reinforcing portion 32c in the frame, and legs 32d and 32d at both lower ends of the frame portion 32a.
The fixed portion 32b is arranged so as to face the width direction of the endless belt 3A, and the rotating shaft 32b1 is rotatably inserted into the fixed portion 32b.
The legs 32d and 32d of the frame portion 32a are fixed to the exposed portions on both sides of the rotating shaft 32b1.
That is, as shown by the arrow in FIG. 24, the frame portion 32a can rotate left and right about the rotation shaft 32b1 of the fixed portion 32b.
The four stoppers 34 are arranged on both sides of such a frame portion 32a, respectively. Each stopper 34 is fixed to the edge of the endless belt 3A with the opening 34a facing the leg portion 32d side of the frame portion 32a.
The frame portion 32a is provided with four auxiliary leg portions 32e whose tip portions can be inserted into the stopper 34. That is, the pair of auxiliary leg portions 32e and 32e are projected in the opposite directions on both sides of the frame portion 32a and near the joint position 32a1 with the reinforcing portion 32c. Each auxiliary leg portion 32e is inclined toward the stopper 34 side from the vicinity of the joint position 32a1 with the reinforcing portion 32c, and the tip portion thereof is positioned within the opening 34a of the stopper 34.
The length of each auxiliary leg portion 32e is such that when the frame portion 32a is perpendicular to the endless belt 3A, the tip of the auxiliary leg portion 32e floats upward from the endless belt 3A by a predetermined height. The length is set.

On the other hand, the pressure receiving surface portion 31 is joined to the frame portion 32a via the reinforcing portion 32c and the joining portion 32f.
Specifically, as shown in FIG. 23, three joint portions 32f are projected from the upper portion and the lower portion of the frame portion 32a at predetermined intervals. Each joint portion 32f projects horizontally from the upper portion (lower portion) of the frame portion 32a. Then, the upper part of the back surface of the pressure receiving surface portion 31 is joined to the three joining portions 32f of the upper part of the frame portion 32a, and the lower part of the back surface of the pressure receiving surface portion 31 is joined to the three joining portions 32f of the lower part of the frame portion 32a. The substantially central portion of the back surface of the pressure receiving surface portion 31 is joined to the reinforcing portion 32c of the frame portion 32a.

Next, the operation of the first resistance member 30C will be described.
FIG. 25 is a side view for explaining the operation shown by the first resistance member 30C of the modified example.
As shown in FIG. 25, when the pressure receiving surface portion 31 of the first resistance member 30C receives the fluid pressure in the arrow A direction, the frame portion 32a of the support member 32 tilts to the downstream side, and the auxiliary leg portion 32e on the downstream side is tilted. The tip of the stopper 34 enters the stopper 34. Then, the tip end portion of the auxiliary leg portion 32e is locked by the stopper 34, and further inclination of the frame portion 32a is prevented. As a result, the fluid pressure received by the pressure receiving surface portion 31 is transmitted to the stopper 34 through the auxiliary leg portion 32e, and the endless belt 3A moves in the direction of the force F by the force F applied to the stopper 34. As a result, the endless belt 3A rotates counterclockwise.

By the way, as shown in FIGS. 4 and 5, in the first resistance member 30 applied in the first embodiment or the like, the frame portion 32a of the support member 32 is joined to the fixed portion 32b, so that the pressure is received. When the surface portion 31 receives a water flow, the force due to the water pressure received by the pressure receiving surface portion 31 is intensively applied to the fixed portion 32b. Therefore, if it is used for a long period of time, the fixing portion 32b may be damaged or may be peeled off from the endless belt 3A. In particular, when the first resistance member 30 is used in water at a high flow velocity, or when the first resistance member 30 itself is made large, such a problem may occur.

On the other hand, in the first resistance member 30C of this modification, when the pressure receiving surface portion 31 receives water pressure, the frame portion 32a of the support member 32 rotates downstream around the fixed portion 32b, and the auxiliary leg portion 32e Since the structure is such that the stopper 34 abuts against the stopper 34, the force due to the water pressure received by the pressure receiving surface portion 31 is dispersed between the stopper 34 and the fixing portion 32b. As a result, the force applied to the fixed portion 32b is reduced, so that there is almost no possibility that the fixed portion 32b will be damaged or peeled off from the endless belt 3A.
Since other configurations, actions and effects are the same as those of the first resistance member 30 applied to the first, second and fourth embodiments, the description thereof will be omitted.

(Modification 2)
Next, a modification of the first resistance member 30 applied to the third embodiment will be described.
FIG. 26 is a perspective view showing a modified example of the first resistance member 30 applied to the third embodiment.
As shown in FIG. 26, the first resistance member 30D of this modification has a structure in which a pressure receiving surface portion 31A made of a flexible material is attached to a frame portion 32a of the first resistance member 30C of the modification. It has become.
However, the mounting structure of the pressure receiving surface portion 31A to the frame portion 32a is different from that of the first resistance member 30C of the above modification. That is, in the first resistance member 30D of this modification, the frame-shaped pressure receiving surface mounting portion 35 is arranged inside the frame portion 32a and is joined to the frame portion 32a by a plurality of joining portions 32g. The pressure receiving surface portion 31A is attached to the frame-shaped pressure receiving surface mounting portion 35.
Other configurations, actions and effects are the same as those of the first resistance member 30 of the third embodiment and the first resistance member 30C of the modification, and thus the description thereof will be omitted.

(Modification 3)
Further, a modification of the first resistance member 30'applied to the fifth embodiment will be described.
27 is a perspective view showing a modified example of the first resistance member 30'applied to the fifth embodiment, FIG. 28 is an exploded perspective view of the present modified example, and FIG. 29 is the present modified example. It is a side view which shows by breaking a part of the 1st resistance member of.
As shown in FIGS. 27 to 29, the first resistance member 30E of this modification has a structure in which the pressure receiving surface portions 31B and 31C are attached to both sides of the frame portion 32a of the first resistance member 30C of the modification. ing.
Specifically, the back surface of the pressure receiving surface portion 31B is joined to the plurality of joining portions 32f and the reinforcing portion 32c on one surface of the frame portion 32a. Then, with the pressure receiving surface portion 31C back to back with the pressure receiving surface portion 31B, the back surface thereof was joined to a plurality of joining portions 32f'protruding from the other surface of the frame portion 32a and the reinforcing portion 32c.
Other configurations, actions and effects are the same as those of the first resistance member 30'of the fifth embodiment and the first resistance member 30C of the modification, and thus the description thereof will be omitted.

(Example 6)
Next, a sixth embodiment of the present invention will be described.
FIG. 30 is a perspective view showing a fluid power generation system according to a sixth embodiment of the present invention.
As shown in FIG. 30, in the fluid power generation system 1-6 of this embodiment, the first rotating body 2A and the second rotating body 2B of the fluid driving device 1A, the third rotating body 4, and a plurality of auxiliary rotating bodies are present. 2C and 2D have a structure supported by a support 10 so as to be movable up and down.

Specifically, the elongated holes 22 and 22 are formed in the columns 11A and 11B of the support 10, respectively, and both ends of the shaft portion 20 of the first rotating body 2A are rotatably formed in the elongated holes 22 and 22, respectively. It is fitted. Then, the knobs 23 and 23 are attached to the respective tip portions of both end portions of the shaft portion 20. The knobs 23 and 23 are members for rotatably positioning the shaft portion 20 of the first rotating body 2A to a predetermined height.
The elongated holes 22 and 22 as described above are also provided in the columns 12A, 12B and 12C, and the knobs 23 and 23 are the shaft portions 21 of the second rotating body 2B fitted in the elongated holes 22 and 22. It is also attached to the tip.

The auxiliary rotating bodies 2C and 2D are rotating bodies having the same shape as the first and second rotating bodies 2A and 2B, and the first and second rotating bodies are rotated with the shaft portions 25 and 26 as the central axes parallel to each other. It is juxtaposed between the bodies 2A and 2B and the endless belt 3A.
Specifically, the elongated holes 24 and 24 that are longer than the elongated holes 22 and 22 are formed in the columns 13A and 13B of the support 10, respectively, and both ends of the shaft portion 25 of the auxiliary rotating body 2C are elongated holes. It is rotatably fitted in 24 and 24, respectively. The knobs 23 and 23 are attached to both tip portions of the shaft portion 25, respectively. Similarly, the elongated holes 24 and 24 are also provided in the columns 14A and 14B, and the knobs 23 and 23 are also attached to the tip of the shaft portion 26 of the auxiliary rotating body 2D fitted in the elongated holes 24 and 24. Has been done.

As described above, the power generation device 1B includes a rotation direction converter 5A and a generator 6 connected to the rotation direction converter 5A. Then, the output shaft 21b of the third rotating body 4 of the fluid driving device 1A is connected to the rotation direction converter 5A.

Next, an example of using the fluid power generation system of this embodiment will be described.
FIG. 31 is a schematic diagram showing an installation state of the fluid power generation system of this embodiment.
It should be noted that this installation structure is also a structure that specifically realizes the installation structure of the fluid power generation system according to the twelfth invention.
As shown in FIG. 31, the lower portion of the endless belt 3A of the fluid power generation system 1-6 is slightly below the water surface S, and the concave pressure receiving surface portion of the first resistance member 30 in the underwater W. The support 10 is submerged in water W and fixed so that 31 faces the upstream side.
At this time, the first and second rotating bodies 2A and 2B and the auxiliary rotating bodies 2C and 2D are positioned in a horizontal row by using the knob 23.
In this state, since the plurality of first resistance members 30 located in the lower portion of the endless belt 3A are completely submerged in the water W, these first resistance members 30 receive the fluid pressure. The first and second rotating bodies 2A and 2B rotate together with the endless belt 3A without any trouble, and the second resistance member 40 receives the fluid pressure to rotate the third rotating body 4.

As a result, a large rotational energy is generated by the second rotating body and the third rotating body, and this large rotational force is generated from the output shaft 21b of the fluid drive device 1A through the rotation direction converter 5A of the power generation device 1B. It is transmitted to the rotating shaft 60 of the machine 6, and the generator 6 performs the power generation operation. This operation is the same as that of the above embodiment.

By the way, it is possible to continue using the product in the above-mentioned installed state, but if the endless belt 3A has slack or misalignment, the slack or the like of the endless belt 3A must be eliminated.

FIG. 32 is a schematic view showing an installation structure in which the endless belt is prevented from loosening and the like.
When slack or the like occurs in the endless belt 3A, as shown in FIG. 32, the knobs 23 and 23 of the columns 13A and 13B are loosened to raise the auxiliary rotating body 2C along the elongated holes 24 and 24. Then, at the position where the endless belt 3A has no slack, the auxiliary rotating body 2C is picked and positioned at that position by the 23 and 23.
As a result, the tension of the endless belt 3A can be maintained, and stable movement of the first resistance member 30 can be ensured.

In the fluid power generation system 1-6 having such an installation structure, a larger rotational force can be obtained by lowering either the auxiliary rotating body 2C or 2D.
FIG. 33 is a schematic diagram showing an installation structure that increases the rotational force of the fluid power generation system of this embodiment.
It should be noted that this installation structure is also a structure that specifically realizes the installation structure of the fluid power generation system according to the thirteenth invention.
As shown in FIG. 33, the rotational force of the fluid power generation system 1-6 can be increased by locating the auxiliary rotating body 2D in the underwater W.
Specifically, in the installation state shown in FIG. 31, the knobs 23 and 23 of the columns 14A and 14B are loosened, and as shown in FIG. 33, the auxiliary rotating body 2D is inserted into the elongated holes 24 and 24 (see FIG. 30). Lower along. Then, when the portion of the endless belt 3A in the underwater W is curved in an inverted triangle, the auxiliary rotating body 2D is picked and positioned at that position by the picks 23 and 23.
As a result, the length of the endless belt 3A in the underwater W becomes longer than when it is in a normal horizontal shape (see FIG. 31). That is, more first resistance members 30 than usual are completely submerged in the water W, and many first resistance members 30 receive fluid pressure, and the rotational force is further increased.

By the way, when the water surface S becomes high due to the increase in water or the like, it is necessary to raise the endless belt 3A or the like according to the degree of increase of the water surface S.
FIG. 34 is a schematic diagram showing an ascending state of the fluid power generation system.
As shown in FIG. 34, when the water surface S rises from the broken line to the position of the solid line, the fluid drive device 1A of the fluid power generation system 1-6 is moved upward, and the lower portion of the endless belt 3A rises. It is necessary to change it so that it is slightly below S.
Specifically, the knobs 23 of the first rotating body 2A, the second rotating body 2B, the auxiliary rotating body 2C, 2D, and the third rotating body 4 are loosened, and these members are made into the elongated holes 24, 24. Raise along (see FIG. 30). Then, when these members come to a desired position, the first rotating body 2A, the second rotating body 2B, the auxiliary rotating body 2C, 2D, and the third rotating body 4 are respectively picked at the position by the picking 23. Position.

As described above, the power generation device 1B is in a state of being connected to the output shaft 21b of the third rotating body 4 of the fluid drive device 1A. Therefore, when the fluid drive device 1A is raised, the power generation device 1B also becomes one body. It will rise.
When raising the fluid drive device 1A, the power generation device 1B is removed from the fluid drive device 1A, the fluid drive device 1A is raised, and then the rotation direction converter 5A of the power generation device 1B is used as the output shaft of the fluid drive device 1A. It may be connected to 21b.

The resistance of water to objects in the water is greater than that of land, as evidenced by the fact that a person cannot run at all just by immersing them in the water below their knees.
Therefore, if a part or all of the first rotating body 2A and the second rotating body 2B is submerged in water, these rotating bodies may receive a large water resistance and the rotation efficiency may decrease.
Therefore, as shown in FIG. 35, for example, only the auxiliary rotating body 2D is submerged in the water W, and the other first rotating body 2A, the second rotating body 2B, the third rotating body 4, and the like are separated from the water surface S. It is conceivable to position it on the top.
As a result, the plurality of first resistance members 30 pushed down into the water W by the auxiliary rotating body 2D receive the resistance of the water and move the endless belt 3A in the downstream direction. The movement of the endless belt 3A causes the first rotating body 2A and the second rotating body 2B to rotate, and at the same time, the third rotating body 4 rotates to enable power generation. At this time, since the first rotating body 2A and the second rotating body 2B are located above the water surface S, they rotate smoothly without receiving any resistance of water. As a result, the rotational efficiency of the first rotating body 2A and the second rotating body 2B is improved, and the power generation capacity is also improved.
Since other configurations, actions and effects are the same as those in the first to fifth embodiments, the description thereof will be omitted.

(Example 7)
Next, a seventh embodiment of the present invention will be described.
FIG. 36 is a perspective view showing a fluid power generation system according to a seventh embodiment of the present invention.
As shown in FIG. 36, in the fluid power generation system 1-7 of this embodiment, the mounting structure of the first resistance member 30 of the fourth embodiment is applied to the fluid drive device 1A. Different from the examples.

That is, a plurality of first resistance members 30 are erected on the surface of the endless belt 3A at regular intervals so that they are alternately oriented in opposite directions. Specifically, a plurality of first resistance members 30 are alternately arranged so that the pressure receiving surface portion 31 faces in the opposite direction.

FIG. 37 is a schematic diagram showing the installation structure of the fluid power generation system for flowing water in the right direction in the figure, and FIG. 38 is a schematic diagram showing the installation structure of the fluid power generation system for flowing water in the left direction in the figure.
As shown by the arrow in FIG. 37, when the water flow direction is to the right, the auxiliary rotating body 2D is submerged in the water W so that the pressure receiving surface portion 31 facing left of the first resistance member 30 can be formed. Receives fluid pressure. As a result, the endless belt 3A and the third rotating body 4 rotate counterclockwise, and the power generation device 1B starts the power generation operation.
Then, as shown in FIG. 38, when the flowing water direction changes to the left, the auxiliary rotating body 2D is raised above the water surface S, and the auxiliary rotating body 2C is submerged in the water W to form an installation structure. As a result, the right-facing pressure receiving surface portion 31 of the first resistance member 30 receives the fluid pressure, the endless belt 3A and the third rotating body 4 rotate clockwise, and the power generation device 1B continues the power generation operation. ..
That is, according to the fluid power generation system 1-7 of this embodiment, even when the fluid power generation system 1-7 is used in a place where the flow changes, it is necessary to move the direction of the entire fluid power generation system 1-7 according to the change in the flow direction. There is no.
Since other configurations, actions and effects are the same as those in the fourth and sixth embodiments, the description thereof will be omitted.

(Example 8)
Next, an eighth embodiment of the present invention will be described.
39 is a perspective view showing a fluid power generation system according to an eighth embodiment of the present invention, FIG. 40 is a plan view of the fluid power generation system, and FIG. 41 is a sectional view taken along the line CC of FIG. 40. Is.
As shown in FIG. 39, the fluid power generation system 1-8 of this embodiment is different from the sixth and seventh embodiments in that the cover body 7 is attached to the fluid drive device 1A.

The cover body 7 is a frame-shaped body that is open vertically. The cover body 7 is endless with the first rotating body 2A, the second rotating body 2B, the auxiliary rotating bodies 2C, and 2D so as not to come into contact with any of the plurality of first resistance members 30 of the fluid driving device 1A. A mechanical portion composed of the belt 3A and the plurality of first resistance members 30 is surrounded from the surroundings. Then, in such a state, the cover body 7 is fixed to the support body 10.
Specifically, as shown in FIG. 40, the cover body 7 is fitted to the outside of the columns 11A to 14A and 11B to 14B of the support body 10. The circular holes (not shown) are the side surfaces of the cover body 7, and both ends of the shaft portion 20 of the first rotating body 2A, both ends of the shaft portion 21 of the second rotating body 2B, and the auxiliary rotating body 2C, It is opened at a position corresponding to both ends of the 2D shaft portions 25 and 26, respectively. Both ends of the shaft portions 20, 21, 25, and 26 are inserted into these circular holes, the knob 23 is fastened to these shaft portions, and the cover body 7 is fixed to the support body 10.
Further, as shown in FIG. 41, the cover body 7 is set so that the lower edge 7a of the cover body 7 is located in the vicinity of the water surface S. That is, it is a mechanical portion composed of a first rotating body 2A, a second rotating body 2B, auxiliary rotating bodies 2C, 2D, an endless belt 3A, and a plurality of first resistance members 30, and is on the water surface S. The mounting position of the cover body 7 is set so as to completely surround the positioned mechanical portion from the surroundings.
The third rotating body 4 of the fluid drive device 1A and the power generation device 1B are arranged outside the cover body 7 (see FIG. 40).

By the way, when the fluid drive device 1A of the fluid power generation system 1-8 is installed in water where the flow of water flows in one direction as a whole and does not have a local complicated flow, the cover body 7 is shown in the figure. As shown by the solid line of 41, it is sufficient to set the lower edge 7a of the cover body 7 to be located in the vicinity of the water surface S. However, when this fluid drive device 1A is installed in water having a locally complicated flow, the first resistance member 30 or the like causes rolling or the like, and the endless belt 3A causes the first and second rotating bodies 2A and 2B. There is a risk of coming off.
Therefore, when the fluid drive device 1A of the fluid power generation system 1-8 is used in such water, the lower edge 7a of the cover body 7 is the first in the water W as shown by the two-dot chain line in FIG. It is set to be lower than the lower end of the resistance member 30 of.
That is, the entire mechanism portion composed of the first rotating body 2A, the second rotating body 2B, the auxiliary rotating bodies 2C, 2D, the endless belt 3A, and the plurality of first resistance members 30 is completely surrounded from the surroundings. As described above, the mounting position of the cover body 7 is set. As a result, the cover body 7 itself becomes slightly larger, but it is possible to prevent the influence of the above-mentioned local complicated flow. As a result, stable rotation of the endless belt 3A and prevention of slippage can be achieved.

By adopting the configuration in which the fluid power generation system 1-8 is applied, even if a storm, an increase in water, or the like occurs and a wave wind occurs, the first rotating body 2A, the second rotating body 2B, and the auxiliary rotating body 2C of the fluid drive device 1A occur. , 2D, the endless belt 3A, and the mechanical portion composed of the plurality of first resistance members 30 and located on the water surface S are protected by the cover body 7.

In this embodiment, in order to completely prevent flooding, a circular hole is opened on the side surface of the cover body 7, and both ends of the shaft portion 20 and the like of the first rotating body 2A are inserted therein and the knob 23 is inserted. The configuration to be fixed by is illustrated.
However, instead of the circular hole, a long hole having the same shape as the long holes 22 and 24 (see FIG. 39) formed in the support columns 11A and 13A is provided at the side surface position of the cover body 7 corresponding to the long holes 22 and 24. By opening the cover body 7, the cover body 7 can be freely moved up and down and attached to the support body 10. In this case, although some inundation is unavoidable, the cover body 7 itself, the auxiliary rotating bodies 2C, 2D, and the like can be moved up and down without removing the cover body 7 from the support body 10, which is very convenient.
Since other configurations, actions and effects are the same as those in the sixth and seventh embodiments, the description thereof will be omitted.

(Example 9)
Next, a ninth embodiment of the present invention will be described.
FIG. 42 is a cross-sectional view showing a fluid power generation system according to a ninth embodiment of the present invention.
As shown in FIG. 42, in the fluid power generation system 1-9 of this embodiment, the cover body 7 has the upper surface portion 70, which is different from the eighth embodiment.
Specifically, a dome-shaped upper surface portion 70 is formed on the upper edge 7b of the cover body 7. As a result, the upper opening of the cover body 7 is completely closed by the upper surface portion 70, so that the mechanical portion of the fluid power generation system 1-9 is completely covered by the cover body 7 from the surroundings and above, and completely from the wave wind. Protected by.
Since other configurations, actions and effects are the same as those in the eighth embodiment, the description thereof will be omitted.

(Example 10)
Next, a tenth embodiment of the present invention will be described.
FIG. 43 is a plan view showing a fluid power generation system according to a tenth embodiment of the present invention.
As shown in FIG. 43, in the fluid power generation system 1-10 of this embodiment, the structure of the power generation device is different from the structure of the power generation device applied to the first to ninth embodiments.

Specifically, the output shaft 21b of the fluid drive device 1A and the rotation shaft 60 of the generator 6 of the power generation device 1B are directly connected by a connecting member 61.
With this configuration, a large rotational force output from the output shaft 21b of the fluid drive device 1A is directly transmitted to the generator 6 of the power generation device 1B.
Since other configurations, actions and effects are the same as those in the first to ninth embodiments, the description thereof will be omitted.

(Example 11)
Next, the eleventh embodiment of the present invention will be described.
FIG. 44 is a plan view showing the fluid power generation system according to the eleventh embodiment of the present invention.
As shown in FIG. 44, in the fluid power generation system 1-11 of this embodiment, the structure of the power generation device is different from the structure of the power generation device applied to the first to tenth embodiments.

That is, the output shaft 21b of the fluid drive device 1A and the rotation shaft 60 of the generator 6 of the power generation device 1B are connected via the belt mechanism 5B.
Specifically, the belt mechanism 5B includes a pulley 51 as a rotating body, a pulley 52 having a diameter different from that of the pulley 51, and an endless belt 53 wound around the pulleys 51 and 52.
The pulley 51 of the belt mechanism 5B is attached to the output shaft 21b of the fluid drive device 1A, and the pulley 52 is attached to the rotating shaft 60 of the generator 6.
That is, the belt mechanism 5B receives the rotational force of the output shaft 21b of the fluid drive device 1A by the pulley 51, and transmits the rotational force of the output shaft 21b to the rotary shaft 60 of the generator 6 by the endless belt 53 and the pulley 52. can.

With this configuration, the rotational force output from the output shaft 21b of the fluid drive device 1A is transmitted to the pulley 51 of the belt mechanism 5B. Then, the rotational force of the pulley 51 is transmitted to the rotating shaft 60 of the generator 6 via the endless belt 53 and the pulley 52.
Therefore, the rotation speed of the output shaft 21b of the fluid drive device 1A is changed by the belt mechanism 5B to the rotation speed corresponding to the diameter ratio of the pulleys 51 and 52 of the belt mechanism 5B, and then the generator 6 of the power generation device 1B is used. It will be transmitted.
Since other configurations, actions, and effects are the same as those in the first to tenth embodiments, the description thereof will be omitted.

(Example 12)
Next, a twelfth embodiment of the present invention will be described.
FIG. 45 is a plan view showing a fluid power generation system according to a twelfth embodiment of the present invention.
As shown in FIG. 45, in the fluid power generation system 1-12 of this embodiment, the structure of the power generation device is different from the structure of the power generation device applied to the first to eleventh embodiments.

That is, the output shaft 21b of the fluid drive device 1A and the rotation shaft 60 of the generator 6 of the power generation device 1B are connected via the gear mechanism 5C.
Specifically, the gear mechanism 5C is composed of a gear 54 and a gear 55 having different numbers of teeth, the gear 54 is attached to the output shaft 21b of the fluid drive device 1A, and the gear 55 is the generator 6. It is attached to the rotating shaft 60.
That is, the gear mechanism 5C can transmit the rotational force of the output shaft 21b of the fluid drive device 1A to the rotary shaft 60 of the generator 6 by the gears 54 and 55.

With this configuration, the rotational force output from the output shaft 21b of the fluid drive device 1A is transmitted to the rotary shaft 60 of the generator 6 via the gears 54 and 55 of the gear mechanism 5C.
Therefore, the rotation speed of the output shaft 21b of the fluid drive device 1A is transmitted to the generator 6 of the power generation device 1B after being shifted to the rotation speed corresponding to the gear ratios of the gears 54 and 55 by the gear mechanism 5C. Will be.
Since other configurations, actions, and effects are the same as those in the first to eleventh embodiments, the description thereof will be omitted.

(Example 13)
Next, a thirteenth embodiment of the present invention will be described.
FIG. 46 is a plan view showing a fluid power generation system according to a thirteenth embodiment of the present invention.
As shown in FIG. 46, in the fluid power generation system 1-13 of this embodiment, the structure of the power generation device is different from the structure of the power generation device applied to the eleventh embodiment.

That is, the rotation direction converter 5A is interposed between the belt mechanism 5B and the generator 6.
Specifically, the rotation direction converter 5A is connected between the rotation shaft of the pulley 52 of the belt mechanism 5B and the rotation shaft 60 of the generator 6, whereby the rotation direction converter 5 is manually operated. Therefore, the rotation direction of the rotation shaft 60 of the generator 6 can be changed.
Since other configurations, actions, and effects are the same as those in the eleventh embodiment, the description thereof will be omitted.

(Example 14)
Next, a 14th embodiment of the present invention will be described.
FIG. 47 is a plan view showing the fluid power generation system according to the 14th embodiment of the present invention.
As shown in FIG. 47, in the fluid power generation system 1-14 of this embodiment, the structure of the power generation device is different from the structure of the power generation device applied to the twelfth embodiment.

That is, the rotation direction converter 5A is interposed between the gear mechanism 5C and the generator 6.
Specifically, the rotation direction converter 5A is connected between the rotation shaft of the gear 55 of the gear mechanism 5C and the rotation shaft 60 of the generator 6, whereby the rotation direction converter 5 is manually operated. Therefore, the rotation direction of the rotation shaft 60 of the generator 6 can be changed.
Since other configurations, actions, and effects are the same as those in the twelfth embodiment, the description thereof will be omitted.

(Example 15)
Next, a fifteenth embodiment of the present invention will be described.
FIG. 48 is a schematic diagram showing a main part of the fluid power generation system according to the fifteenth embodiment of the present invention.
As shown in FIG. 48, in the fluid power generation system 1-15 of this embodiment, the first rotating body 2A supports the first and second rotating bodies 2A and 2B in a state of being positioned above the water surface S. The body 10 is fixed to the columns 11A and 11B, and the second rotating body 2B is fixed to the columns 12A and 12B.
A plurality of auxiliary rotating bodies 2C, 2E, ..., 2D, 2F are arranged side by side between the first and second rotating bodies 2A and 2B.
Specifically, the auxiliary rotating body 2C is supported vertically by a pair of columns 13A and 13B of the support body 10, and the auxiliary rotating bodies 2E and 2F are vertically movable by a pair of columns 15A and 15B. It is supported, and the auxiliary rotating body 2D is supported by a pair of columns 14A and 14B so as to be vertically movable. An auxiliary rotating body (not shown) located between the auxiliary rotating body 2E and the auxiliary rotating body 2D is also supported by a pair of columns (not shown) so as to be vertically movable.
Further, the auxiliary rotating body 2D and the auxiliary rotating body 2F located at the most downstream are completely submerged in the water W, and the auxiliary rotating bodies 2C, 2E, ... Other than the auxiliary rotating bodies 2D and 2F are on the water surface S. Is located in. In this way, the endless belt 3A traveling from the second rotating body 2B on the downstream side to the first rotating body 2A on the upstream side is supported by the auxiliary rotating bodies 2C, 2E, ... Located on the water surface S. , The endless belt 3A is pushed down toward the water surface S side to prevent it from loosening or shifting. Further, in the endless belt 3A traveling from the first rotating body 2A on the upstream side to the second rotating body 2B on the downstream side, the endless belt 3A is pushed and loosened by the auxiliary rotating bodies 2D and 2F arranged in water. It is prevented from being misaligned.
The endless belt 3A is wound around the first and second rotating bodies 2A and 2B as described above and the plurality of auxiliary rotating bodies 2C, 2E, ..., 2D and 2F, and as a result, the plurality of endless belts 3A are located in water. Most of the first resistance member 30 of the above is located in the portion of the endless belt 3A (the portion that inclines downward to the right in the figure) located on the upstream side of the auxiliary rotating body 2D.

Here, the operation and effect exhibited by the fluid power generation system 1-15 of this embodiment will be described.
FIG. 49 is a schematic diagram for explaining the action and effect when the first resistance members 30 in water are arranged in a horizontal row, and FIG. 50 is for explaining the action and effect of this embodiment. It is a schematic diagram of.
As described in the fourth embodiment, when the first resistance member 30 is a member having a width a (m), a height b (m), and a drag coefficient C, the maximum force F (N) received from the water flow. ) Is represented by the above formula (a).
Here, the water flow velocity applied to the first resistance member 30 decreases depending on the size and number of water flow shields existing in front of the first resistance member 30, so that the larger and the larger the number of water flow shields, the more. The relative velocity U of the water flow becomes smaller, and as a result, the maximum force F that the first resistance member 30 receives from the water flow also becomes smaller.
Therefore, as shown in FIG. 49, in the fluid power generation system in which the first resistance members 30 are arranged in a horizontal row, the uppermost first resistance member 30 without a water flow shield (leftmost in the figure). The first resistance member 30) located at the above receives a water flow having the largest relative velocity U. Then, as it goes downstream, the size and number of the first resistance members 30 lined up in the front (left side in the figure) become the water flow shield of the first resistance member 30 in the rear (right side in the figure). .. Therefore, the relative velocity U of the water flow received becomes smaller as the first resistance member 30 located on the downstream side. Therefore, the force F that the first resistance member 30 receives from the water flow is maximum for the first resistance member 30 that is the most upstream, and the second, third, and fourth resistance members 30 are downstream thereof. It gets smaller as it is located on the side.
Moreover, since the shielding area S1 of the front first resistance member 30 that shields the rear first resistance member 30 is the entire front first resistance member 30, the rear first resistance member 30 should receive it. The loss of force F is very large. Therefore, in a fluid power generation system having a configuration in which a plurality of first resistance members 30 are arranged in a horizontal row, it is not possible to efficiently receive the fluid pressure due to the water flow.

However, as described above, in the fluid power generation system 1-5 of this embodiment, as shown in FIG. 50, the auxiliary rotating bodies 2D and 2F located at the most downstream are completely submerged in the water W and the auxiliary rotation is performed. With the auxiliary rotating bodies 2C, 2E, ... , ..., Since it is configured to be wound around 2D and 2F, the plurality of first resistance members 30 in the water are inclined downward in the depth direction toward the most downstream auxiliary rotating body 2D instead of one horizontal row. And it will be in a lined up state.

With this configuration, the rear first resistance member 30 is displaced downward from the front first resistance member 30, and the front first resistance member 30 shields the rear first resistance member 30. The shielding area S2 of the above becomes very small. Therefore, the relative velocity U of the water flow with respect to each first resistance member 30 is much larger than that of the fluid power generation system of FIG. 49 in which the first resistance members 30 are arranged in a horizontal row. As a result, according to the above equation (a), the force F acting on each of the first resistance members 30 is higher than that of the fluid power generation system of FIG. 49 in which the first resistance members 30 are arranged in a horizontal row. Will be extremely large.

Moreover, by selectively adjusting a plurality of auxiliary rotating bodies 2C, 2E, ..., 2D, 2F whose positions can be adjusted on the support column, the first resistance member 30 located upstream of the auxiliary rotating body 2D The number of sheets can be set to be equal to or greater than the number of sheets of the first resistance member 30 in the case of one horizontal row.

As described above, in the fluid power generation system 1-15 of this embodiment, the shielding area to each first resistance member 30 is made as small as possible, and the force of the water flow is reduced by as many first resistance members 30 as possible. Since the configuration can be obtained, the fluid pressure due to the water flow can be efficiently secured, and as a result, extremely large electric power can be generated.

In this embodiment, as shown in FIG. 48, a fluid power generation system to which three or more auxiliary rotating bodies 2C, 2E, ..., 2D, 2F are applied has been described, but as shown in FIG. 51, the fluid power generation system has been described. The structure may be such that only the most upstream auxiliary rotating body 2C and the most downstream auxiliary rotating body 2D are left, and the other auxiliary rotating bodies 2E ... Are omitted.
Since other configurations, actions, and effects are the same as those in the sixth to fourteenth embodiments, the description thereof will be omitted.

The present invention is not limited to the above embodiment, and various modifications and changes can be made within the scope of the gist of the invention.
For example, in the above embodiment, the power generation system using water is exemplified as the fluid power generation system, but the fluid power generation system is not limited to the one using water. For example, it can be installed in the atmosphere and applied as a wind power generation system that converts energy obtained from wind pressure into electrical energy.
Further, in the first resistance member 30C of the first modification, as shown in FIG. 22, a pair of auxiliary legs 32e and 32e are projected on both sides of the frame 32a in the opposite direction, and these auxiliary legs are projected. The structure is such that a pair of stoppers 34, 34 into which the portions 32e, 32e can enter are arranged at the edge of the endless belt 3A, and the structure of the first resistance member 30C is shown in FIG. 52. The structure may be such that only the auxiliary leg portion 32e and the stopper 34 located on the downstream side are provided, and the auxiliary leg portion 32e and the stopper 34 located on the upstream side are excluded. The same applies to the first resistance member 30D of the second modification.
This application claims the interests of Japanese Patent Application No. 2020-12567 filed on 14 July 2020, the contents of which are incorporated herein by reference in their entirety.

1-1 ~ 1-14 ... fluid power generation system, 1A ... fluid drive device, 1B ... power generation device, 2A ... first rotating body, 2B ... second rotating body, 2C ~ 2F ... auxiliary rotating body, 3A, 53 ... endless belt, 4 ... 3rd rotating body, 4A ... 4th rotating body, 4a ... circumferential surface, 5A ... rotation direction converter, 5B ... belt mechanism, 5C ... gear mechanism, 6 ... generator, 7 ... Cover body, 7a ... lower edge, 7b ... upper edge, 10 ... support, 11A ~ 15A, 11B ~ 15B, 12C, 12D ... support, 20,21,25,26,53 ... shaft part, 20a, 21a ... one side End, 20b ... other end, 21b ... output shaft, 22, 24 ... long hole, 23 ... pick, 30, 30', 30C, 30D, 30E ... first resistance member, 30A, 30B, 40A-40D ... Resistance member, 31, 31A, 31B, 31C ... Pressure receiving surface part, 31a ... Upper end, 31b ... Lower end, 31c ... Concave side, 31d ... Convex side, 32 ... Support member, 32a ... Frame part, 32a1 ... Joint position, 32b ... Fixed Part, 32b1,60 ... Rotating shaft, 32c ... Reinforcing part, 32d ... Leg part, 32e ... Auxiliary leg part, 32f, 32f', 32g ... Joint part, 33 ... Intermediate member, 34 ... Stopper, 34a ... Opening, 35 ... Pressure receiving surface mounting part, 40 ... 2nd resistance member, 41 ... 3rd resistance member, 51, 52 ... pulley, 54, 55 ... gear, 61 ... connecting member, 70 ... top surface, S ... water surface, W ... underwater ..

Claims (16)

1. A fluid power generation system including a fluid drive device having an output shaft capable of outputting a rotational force corresponding to the fluid pressure, and a power generation device that receives the rotational force of the output shaft of the fluid drive device to generate power.
   The above fluid drive device
   The first rotating body and
   A second rotating body that keeps a predetermined distance from the first rotating body and whose rotation center axis is parallel to the rotation center axis of the first rotating body.
   An endless belt wound around the first rotating body and the second rotating body, and
   A plurality of first resistance members, each of which has a concave pressure receiving surface portion for receiving fluid pressure and is erected on the surface of the endless belt at predetermined intervals.
   A plurality of second resistance members having a pressure receiving surface portion for receiving fluid pressure are erected on the circumferential surface at predetermined intervals, and can rotate into one body with the second rotating body, and the rotation center axis thereof is the above. Equipped with a third rotating body as an output shaft,
   The above power generation device
   The rotational force of the output shaft of the fluid drive device is received by the rotary shaft of the generator to perform power generation operation.
   A fluid power generation system characterized by that.
2. In the fluid power generation system according to claim 1,
   A rotation direction converter that can convert the rotation direction of the rotation axis of the generator with respect to the rotation direction of the output shaft of the fluid drive device in the same direction or in the opposite direction between the output shaft of the fluid drive device and the rotation axis of the generator. Provided,
   A fluid power generation system characterized by that.
3. In the fluid power generation system according to claim 1 or 2.
   The above power generation device
   It has a rotating body that can rotate by receiving the rotational force of the output shaft of the fluid drive device, and transmits the rotational force of the output shaft to the rotating shaft of the generator by an endless belt wound around the rotating body.
   A fluid power generation system characterized by that.
4. In the fluid power generation system according to claim 1 or 2.
   The above power generation device
   The rotational force of the output shaft is transmitted to the rotary shaft of the generator via a gear mechanism provided between the output shaft of the fluid drive device and the rotary shaft of the generator.
   A fluid power generation system characterized by that.
5. In the fluid power generation system according to any one of claims 1 to 4.
   A fourth rotating body in which a plurality of third resistance members having a pressure receiving surface portion for receiving fluid pressure are erected on the circumferential surface at predetermined intervals is a rotation center axis of the first rotating body in the fluid driving device. Or connected to at least one end side of the rotation center axis of the second rotating body,
   A fluid power generation system characterized by that.
6. In the fluid power generation system according to any one of claims 1 to 5.
   A plurality of auxiliary rotating bodies whose rotation center axes are parallel to the rotation center axes of the first and second rotating bodies are arranged side by side between the first rotating body, the second rotating body, and the endless belt. With
   Each of the above-mentioned plurality of auxiliary rotating bodies is supported so as to be able to move up and down.
   A fluid power generation system characterized by that.
7. In the fluid power generation system according to any one of claims 1 to 6.
   The first resistance member is formed of a pressure receiving surface portion made of a flexible material and a support member that supports the pressure receiving surface portion by standing on the surface of the endless belt.
   A fluid power generation system characterized by that.
8. In the fluid power generation system according to any one of claims 1 to 6.
   A plurality of the first resistance members were erected on the surface of the endless belt at predetermined intervals so that the pressure receiving surface portions were alternately opposed to each other.
   A fluid power generation system characterized by that.
9. In the fluid power generation system according to any one of claims 1 to 6.
   The first resistance member is formed of a pair of pressure receiving surface portions joined back to back to each other and a support member that supports these pair of pressure receiving surface portions by standing upright on the surface of the endless belt.
   A fluid power generation system characterized by that.
10. In the fluid power generation system according to any one of claims 1 to 9.
    In the fluid drive device, at least the periphery of the mechanical portion composed of the first and second rotating bodies, the endless belt, and the plurality of first resistance members is surrounded by the plurality of first resistance members in a non-contact state. A frame-shaped cover that protects the mechanism from wave wind is provided.
    A fluid power generation system characterized by that.
11. In the fluid power generation system according to claim 10,
    The cover body has an upper surface portion that covers the mechanism portion of the fluid drive device from above.
    A fluid power generation system characterized by that.
12. An installation structure of a fluid power generation system for installing the fluid power generation system according to any one of claims 6 to 11 on a fluid.
    By supporting each of the first, second and third rotating bodies and the plurality of auxiliary rotating bodies in the fluid driving device so as to be vertically movable by the support fixed in the fluid.
    The first rotating body and the second rotating body are positioned and the second rotating body is positioned so that the endless belt is located in the vicinity of the fluid surface and substantially parallel to the fluid surface.
    A plurality of first resistance members located in the endless belt portion on the fluid surface side are completely submerged in the fluid.
    The installation structure of the fluid power generation system is characterized by this.
13. The installation structure of the fluid power generation system according to claim 12.
    By locating one or more auxiliary rotating bodies among the plurality of auxiliary rotating bodies in the fluid, the endless belt portion on the fluid surface side and the plurality of first resistance members located on the endless belt portion can be moved to the fluid. Completely sunk inside,
    The installation structure of the fluid power generation system is characterized by this.
14. In the fluid power generation system according to claim 6,
    The first and second rotating bodies are positioned and fixed above the surface of the fluid, and are fixed.
    The auxiliary rotating body located at the most downstream of the plurality of auxiliary rotating bodies was completely submerged in the fluid.
    A fluid power generation system characterized by that.
15. In the fluid power generation system according to claim 8,
    Each of the first resistance members is a support member that erects the pressure receiving surface portion having a substantially semicircular cross section on the surface of the endless belt so that the pressure receiving surface portion faces the length direction of the endless belt. Formed with,
    A fluid power generation system characterized by that.
16. In the fluid power generation system according to claim 9,
    Each of the first resistance members has a pair of pressure receiving surface portions having a substantially semicircular cross section and a pair of pressure receiving surface portions so that the pressure receiving surface portions face the length direction of the endless belt. With the support member that stands upright on the surface of the endless belt,
    The pair of pressure receiving surface portions of each of the first resistance members were joined back to back so that the pressure receiving surface portions of each of the first resistance members were opposed to each other.
    A fluid power generation system characterized by that.

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