JPH10238450A - Rotational energy extractor, rotational energy extractor/synthesizer, and water level wave energy converter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently take out a rotating motion in one direction out of rotating motions, having an alternating rotating direction, with a simple constitution by converting the vertical fluctuation of a water level into forward or reverse rotation of a pulley via a float, and transmitting the rotation to a rotary output shaft via a rotor with a ratchet mechanism. SOLUTION: When a float 19 is vertically moved upon vertical fluctuation of a water level 18, a pulley 14, to which the motion is transmitted via a rope 17, is rotated alternately forward and reversely. That is, when the water level rises, torque for rotating the pulley 14 clockwise is generated, and when the water level lowers, torque for rotating the pulley 14 counterclockwise is generated. Out of the rotating motions of the pulley 14, the counterclockwise rotating motion is transmitted to a torque transmitting rod 21 via a pulley 15 with a ratchet gear, a belt 25 and a pulley 23. While, the clockwise rotating motion is transmitted to a torque transmitting rod 22 via a pulley 16 with a ratchet gear, a belt 26 and a pulley 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotational energy extracting device for extracting rotational kinetic energy in each direction from a rotating shaft which rotates alternately in two directions. The present invention relates to a rotational energy extraction / synthesis device for synthesizing rotational motion, and a water surface wave energy conversion device for converting water surface wave energy of water surface fluctuation into rotational energy.

[0002]

2. Description of the Related Art Hitherto, various power generation devices have been proposed which generate electric power using water surface wave energy. In such a power generator, it is necessary to convert water wave energy into rotational energy in order to drive the generator.

[0003]

A converter for converting water wave energy into rotational energy is disclosed in Japanese Patent Application Laid-Open No. 61-1 / 1986.
As disclosed in JP-A-90171, JP-A-61-250213 and JP-A-60-13987, an air turbine is rotated by an air flow generated by the vertical movement of the water surface. However, such a conversion device requires a chamber and an air turbine for generating an air flow from the vertical movement of the water surface, and has a problem that the device becomes large-scale.

Further, Japanese Patent Application Laid-Open No. 61-226572 discloses a converter that converts vertical fluctuations caused by fluctuations in the water level of a buoy floating on the sea surface into rotational motion using a rack and a pinion. However, the rotational motion obtained by this converter has a problem that the rotational direction changes alternately in response to the vertical movement of the buoy due to water level fluctuation, which is inconvenient for use in power generation and the like. .

[0005] In order to solve this problem, the present applicant has proposed a first method for transmitting only one-way rotational motion to a rotating shaft whose rotational direction changes alternately in response to vertical movement of a buoy due to water level fluctuation. A pulley with a ratchet mechanism and a second pulley with a ratchet mechanism for transmitting only rotational movement in the other direction are mounted, and the first and second pulleys with a ratchet mechanism, the first and second pulleys with a ratchet mechanism are mounted. A belt is stretched between each pulley fixed to the output shaft,
A water wave energy conversion device has been proposed in which the rotational motion of the first output shaft and the rotational motion of the second output shaft are combined and taken out as a rotational motion in one direction.

[0006] However, in this water wave energy conversion device, since the idling resistance of the ratchet mechanism in the first and second pulleys with the ratchet mechanism exists to an ignorable level, efficient energy conversion cannot be performed. Further, in a synthesizing machine for synthesizing the rotational motion of the first output shaft and the rotational motion of the second output shaft, while one output shaft is rotating according to the water level fluctuation, the other output shaft is rotated. Is forcibly rotated, and during this forced rotation, rotational energy is consumed by the load of the preceding mechanism, and the energy conversion efficiency is not always good. In particular, in a system configured by arranging a plurality of water surface wave energy conversion devices as described above, there is a problem that the load is accumulated and the energy loss is considerably large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object the extraction efficiency in extracting a rotational motion in one direction from the rotational motion of a rotating shaft whose rotation direction changes alternately with a simple configuration. Energy extraction device that can improve the rotation, the rotation energy extraction / synthesis device that can efficiently combine the extracted rotational motions in two rotational directions with the rotational motion in one direction, and efficiently rotate the vertical fluctuation of the water surface It is an object of the present invention to provide a surface wave energy conversion device capable of converting a rotational motion into a direction that does not change.

[0008]

According to a first aspect of the present invention, there is provided a rotational energy extracting device, comprising: a drive rotary shaft that rotates alternately in two directions; a rotary output shaft that is provided separately from the drive rotary shaft; A rotating body with a ratchet mechanism having a ratchet mechanism for transmitting only the rotating movement in one rotational direction of the rotating movement of the rotating shaft to the rotary output shaft, and a driving rotating shaft through a rotating body with a ratchet mechanism. A rotation transmitting member for transmitting the rotational motion to the rotation output shaft, and tension preventing means for preventing the tension of the rotation transmitting member from being applied in one direction to the rotating body with the ratchet mechanism are provided.

According to a second aspect of the present invention, there is provided a rotational energy extracting device.
A drive rotary shaft that rotates alternately in two directions, a first rotary output shaft and a second rotary output shaft that are separately provided from the drive rotary shaft, and one of rotational motions of the drive rotary shaft A rotating body with a first ratchet mechanism having a ratchet mechanism for transmitting only rotational movement in the rotational direction to the first rotary output shaft, and only rotational movement in the other rotational direction of the rotational movement of the drive rotary shaft A second ratchet mechanism-equipped rotator provided with a ratchet mechanism for transmitting the rotation to the second rotation output shaft;
A first rotation transmitting member for transmitting the rotational motion of the drive rotation shaft to the first rotation output shaft via the first rotating body with a ratchet mechanism, and a driving mechanism via the second rotating body with a ratchet mechanism. The tension of the second rotation transmitting member for transmitting the rotational motion of the rotating shaft to the second rotation output shaft and the tension of the first rotation transmitting member are applied in one direction to the first rotating body with the ratchet mechanism. And a second tension blocking means for preventing the tension of the second rotation transmitting member from being applied in one direction to the second rotating body with the ratchet mechanism.

According to a third aspect of the present invention, there is provided a rotational energy extracting / synthesizing apparatus, wherein a drive rotary shaft that rotates alternately in two directions, a first rotary output shaft and a second rotary output shaft that are separately provided from the drive rotary shaft.
A rotary output shaft having a ratchet mechanism with a ratchet mechanism for transmitting only a rotational motion in one rotational direction of the rotational motion of the drive rotary shaft to the first rotary output shaft; A rotating body with a second ratchet mechanism having a ratchet mechanism for transmitting only the rotational movement in the other rotational direction of the rotational movement of the driving rotary shaft to the second rotational output shaft; and a first ratchet mechanism. A first rotation transmitting member for transmitting the rotational motion of the drive rotary shaft to the first rotary output shaft via the rotary body, and a rotational motion of the drive rotary shaft via the second rotary body with a ratchet mechanism. A second rotation transmitting member for transmitting to the second rotation output shaft and a first member for preventing a tension of the first rotation transmitting member from being applied in one direction to the first rotating body with a ratchet mechanism. The tension between the tension blocking means and the second rotation transmitting member A second tension blocking means for preventing the rotating body with the second ratchet mechanism from being applied in one direction, a rotating energy output from the first rotating output shaft and a rotating energy output from the second rotating output shaft. Combining means for combining the first and second rotational output shafts into the combining means, and combining the first and second rotational output shafts with the first rotating output shaft. A third ratchet mechanism that blocks transmission of rotational motion to the rotary output shaft and the second rotary output shaft.

According to a fourth aspect of the present invention, there is provided a water surface wave energy conversion apparatus comprising: a driving rotary shaft which alternately rotates bidirectionally in accordance with vertical movement of a water surface; and a first rotary output which is provided separately from the driving rotary shaft. With a first ratchet mechanism having a shaft and a second rotary output shaft, and a ratchet mechanism for transmitting only a rotational motion in one rotational direction of the rotational motion of the drive rotary shaft to the first rotary output shaft. A rotating body having a ratchet mechanism for transmitting only a rotational movement in the other rotational direction of the rotational movement of the driving rotary shaft to the second rotary output shaft; A first rotation transmitting member for transmitting the rotational motion of the drive rotary shaft to the first rotary output shaft via the rotary body with a ratchet mechanism; and a drive rotary shaft via the second rotary body with a ratchet mechanism. To the second rotary output shaft A second rotation transmitting member of the order, first
First tension blocking means for preventing the tension of the rotation transmitting member from being applied in one direction to the first rotating body with a ratchet mechanism, and the tension of the second rotation transmitting member being rotated by a second ratchet mechanism. Second tension blocking means for preventing the body from being applied in one direction.

A water wave energy conversion device according to a fifth aspect of the present invention is a water surface wave energy conversion device according to a fourth aspect of the present invention, wherein a plurality of units are arranged as a unit, and a plurality of first rotation output shafts and a plurality of first rotation output shafts are arranged. The two rotary output shafts are connected to each other.

According to a sixth aspect of the present invention, there is provided a water surface wave energy conversion apparatus according to the fourth or fifth aspect, further comprising a plurality of first rotational output shafts connected to each other. Synthesizing means for synthesizing the energy and rotational energy output from the plurality of second rotational output shafts interconnected to form rotational energy in one rotational direction; and a first rotational output shaft and a first rotational output shaft. A third ratchet mechanism for transmitting rotational motion from the rotary output shaft to the synthesizing means, while blocking transmission of rotary motion from the synthesizing means to the first rotary output shaft and the first rotary output shaft; and It has.

According to a seventh aspect of the present invention, there is provided a rotational energy extracting device.
2. The rotational energy extracting device according to claim 1, wherein the rotating body with a ratchet mechanism is mounted on the driving rotary shaft, and the tension stopping means is rotatably disposed about an axis disposed on the opposite side of the driving rotary shaft from the rotary output shaft. The rotation transmitting member is configured to extend from the rotating body fixed to the rotary output shaft to the free rotating body via the rotating body with a ratchet mechanism of the drive rotating shaft. It is.

[0015] The rotational energy extracting device according to claim 8 is
3. The rotary energy extracting device according to claim 2, wherein the first rotating body with a ratchet mechanism and the second rotating body with a ratchet mechanism are mounted on a driving rotary shaft, and the first tension blocking means is provided on the first rotary shaft with respect to the driving rotary shaft. It is configured as a first free rotating body rotatably disposed about an axis disposed on the side opposite to the rotating output shaft, and the second tension blocking means is opposite to the second rotating output shaft with respect to the driving rotating shaft. The first rotation transmitting member is configured as a second free rotating body that is rotatably arranged about a shaft disposed on the side, and a first rotation transmitting member is configured to output drive power from a rotating body fixed to the first rotating output shaft. The shaft is stretched to a first free rotating body via a first rotating body with a ratchet mechanism, and a second rotation transmitting member is moved from a rotating body fixed to the second rotating output shaft to a drive output shaft. Through the second rotating body with the ratchet mechanism to the second free rotating body Ri is obtained by configured to be passed.

According to a ninth aspect of the present invention, there is provided a rotational energy extracting / combining apparatus according to the third aspect, wherein the first rotating body with a ratchet mechanism and the second rotating body with a ratchet mechanism are mounted on a drive rotating shaft. The first tension blocking means is configured as a first free rotating body rotatably disposed around an axis disposed on a side opposite to the first rotating output shaft with respect to the driving rotating shaft, and The tension blocking means is configured as a second free rotating body rotatably disposed about an axis disposed on the opposite side to the second rotation output shaft with respect to the driving rotation shaft, and the first rotation transmitting member is provided. A rotary body fixed to the first rotary output shaft, stretched to a first free rotary body via a rotary body with a first ratchet mechanism of the drive output shaft,
The second rotation transmitting member is configured to extend from the rotating body fixed to the second rotating output shaft to the second free rotating body via the rotating body with the second ratchet mechanism of the driving output shaft. It was done.

According to a tenth aspect of the present invention, in the water surface wave energy conversion device according to any one of the fourth to sixth aspects, the first rotating body with a ratchet mechanism and the second ratchet mechanism are provided. A first rotating body is attached to the driving rotary shaft, and the first tension blocking means is rotatably disposed about an axis disposed on the side opposite to the first rotary output shaft with respect to the driving rotary shaft. Is configured as a rotating body,
The second tension blocking means is configured as a second free rotating body rotatably disposed about an axis disposed on the side opposite to the second rotary output shaft with respect to the driving rotary shaft, and a first rotation transmission. A rotation member fixed to the first rotation output shaft, extends through the first rotation member with a ratchet mechanism of the drive output shaft to the first free rotation member, and a second rotation transmission member. Is the second
Of the drive output shaft from the rotating body fixed to the rotary output shaft of
And is stretched over to the second free rotating body via the rotating body with a ratchet mechanism.

According to an eleventh aspect of the present invention, there is provided the rotational energy extracting device according to the first aspect, wherein the rotating body with the ratchet mechanism is mounted on the rotary output shaft, and the tension preventing means is connected to the drive rotary shaft with respect to the rotary output shaft. A rotating body with a ratchet mechanism of a rotation output shaft is configured as a free rotating body that is rotatably arranged around a shaft disposed on the opposite side, and a rotation transmitting member is fixed to the driving rotating shaft. It is configured so as to be stretched to a free rotating body.

According to a twelfth aspect of the present invention, there is provided a rotational energy extracting device according to the second aspect, wherein the first rotating body with a ratchet mechanism is mounted on the first rotating output shaft, and the second rotating ratchet mechanism is provided with the second ratchet mechanism. A first rotating body is mounted on the second rotating output shaft, and the first tension blocking means is rotatably disposed about an axis disposed on the side opposite to the driving rotating shaft with respect to the first rotating output shaft. Is configured as a free rotating body,
The second tension blocking means is configured as a second free rotating body rotatably disposed about an axis disposed on the side opposite to the driving rotary shaft with respect to the second rotary output shaft, and the first rotation transmission. A rotation member fixedly mounted on the drive rotation shaft, extends from the rotation body fixed to the drive rotation shaft to the first free rotation body through the first rotation body with the ratchet mechanism of the first rotation output shaft, and a second rotation transmission member. From the rotating body fixed to the drive rotating shaft to the second rotating output shaft.
And is stretched over to the second free rotating body via the rotating body with a ratchet mechanism.

According to a thirteenth aspect of the present invention, there is provided a rotational energy extracting / combining apparatus according to the third aspect, wherein the first rotating body with a ratchet mechanism is mounted on the first rotating output shaft, and the second ratchet is provided. The rotating body with the mechanism is mounted on the second rotation output shaft, and the first tension blocking means is rotatably disposed around an axis disposed on the side opposite to the drive rotation shaft with respect to the first rotation output shaft. A second free rotation, configured as a first free rotating body, wherein the second tension blocking means is rotatably disposed about an axis disposed on a side opposite to the driving rotation axis with respect to the second rotation output shaft; The first rotation transmitting member is configured as a first body from a rotating body fixed to the drive rotation shaft.
The second rotation transmitting member is extended from the rotating body fixed to the driving rotating shaft through the first rotating body via the rotating body with the first ratchet mechanism of the rotating output shaft of the first rotating body. The output shaft is configured to be stretched to a second free rotating body via a second rotating body with a ratchet mechanism.

According to a fourteenth aspect of the present invention, in the water surface wave energy converter according to any one of the fourth to sixth aspects, the first rotating body with the ratchet mechanism has a first rotational output. The first rotating output shaft is mounted on the shaft, the second rotating body with a ratchet mechanism is mounted on the second rotating output shaft, and the first tension blocking means is arranged on the shaft opposite to the driving rotating shaft with respect to the first rotating output shaft. A first free rotating body rotatably disposed at the center, wherein the second tension blocking means is rotatable about an axis disposed on the side opposite to the driving rotary shaft with respect to the second rotary output shaft; The first rotation transmitting member is configured as a second free rotating body disposed, and the first rotation transmitting member is fixed to the driving output shaft from the rotating body with the first ratchet mechanism of the first rotating output shaft. It is stretched over the first free rotating body, and the second rotating transmission Use members are those configured as stretched to the second free-rotation member via the second with the ratchet mechanism rotating body of the second rotary output shaft from the rotary member which is fixed to the drive output shaft.

In the rotational energy extracting device according to the first aspect, or in the rotational energy extracting device according to the seventh or eleventh aspect, the tension of the rotation transmitting member is reduced by the presence of the tension preventing means to the rotating body with the ratchet mechanism. Since it does not act in the direction, it is possible to prevent an increase in the spinning resistance of the ratchet mechanism in the rotating body with the ratchet mechanism.

A rotational energy extracting device according to claim 2, a water wave energy converting device according to claim 4, a rotational energy extracting device according to claim 8 or 12, and a rotational energy extracting device according to claim 9 or 13. In the synthesizing device or the water wave energy converting device according to claim 10 or claim 14, the tension of the first and second rotation transmitting members is set to the first and second rotation transmitting members, respectively, by the presence of the first and second tension blocking means. Since the second rotating body with the ratchet mechanism is not applied in one direction, it is possible to prevent an increase in the idling resistance of the ratchet mechanism in the first and second rotating bodies with the ratchet mechanism.

In the rotational energy extracting / combining device according to the third aspect or the water wave energy converting device according to the sixth aspect, rotational energy from the first rotational output shaft and the second rotational output shaft is combined by the combining means. . At this time, the rotational motion is transmitted from the first rotation output shaft and the second rotation output shaft to the combining means, but the rotation is transmitted from the combination means to the first and second rotation output shafts. No movement is transmitted. For this reason, it is possible to prevent the combining means from consuming the rotational energy obtained from one of the rotary output shafts by the other rotary output shaft.

[0025] In the water wave energy converter according to the fifth aspect, the total sum of rotational energy obtained in each unit is output.

[0026]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a configuration of a water wave energy conversion apparatus according to a first embodiment of the present invention, and FIG.
1 shows a cross-sectional configuration along the line AA. The water surface wave energy conversion device according to the present embodiment has a
A pair of support plates 11, 11;
1, a rotating shaft 13 is rotatably mounted via bearings (bearings) 12, 12. FIG.
In FIG. 1, one support plate 11 is omitted. A pulley 14, a pulley 15 with a ratchet gear, and a pulley 16 with a ratchet gear are attached to the rotating shaft 13. A rope 17 such as a seawater-resistant wire rope is wound around the pulley once. A float 19 floating on a water surface 18 is attached to one end of the rope 17.
A counterweight 20 lighter than the float 19 is attached to the other end of the rope 17.

Here, the weight, specific gravity and volume of the float 19 are W ₁ , S ₁ and V ₁ , respectively, the weight, specific gravity and volume of the counterweight 20 are W ₂ , S ₂ and V ₂ , and the unit of water. When the volume weight is w, the equilibrium at rest is as follows, assuming that the draft rate is α.

S ₂ · w · V ₂ = (S ₁ -α) · w · V ₁ (1)

When S ₁ is obtained by modifying the above equation, the following equation is obtained.

S ₁ = α + S ₂ · V ₂ / V ₁ (2)

Therefore, the specific gravity (that is, the material) of the float 19 is determined by the draft rate α, the specific gravity S _{2 of the} counterweight 20,
Then, the volume V ₂ is set as a condition, the volume ratio V ₂ / V ₁ is determined in consideration of the shape and balance, and the volume ratio V ₂ / V ₁ can be determined by the above equation (2). In order to suppress the horizontal movement of the float 19 due to waves and currents on the sea surface, it is advantageous to increase the tension of the rope 17, and based on this fact, the float 19 and the counterweight are calculated from the above equations (1) and (2). What is necessary is just to determine 20 specifications.

Returning to FIG. 1, the explanation will be continued.
A torque transmission rod 21 and a torque transmission rod 22 are rotatably attached to the motors 1 and 11 via bearings (not shown). A pulley 23 is attached to the torque transmission rod 21, and a pulley 2 is attached to the torque transmission rod 22.
4 is attached. The support plates 11 and 11 are respectively provided on the opposite sides of the rotation shaft 13 with respect to the torque transmission rods 21 and 22 via bearings (not shown).
8 is rotatably mounted.

Free pulleys 29 and 30 are attached to the rotating shafts 27 and 28, respectively. A belt 25 is stretched between the pulley 23 and the free pulley 29, and a belt 26 is stretched between the pulley 24 and the free pulley 30. The belt 25 is also stretched over the pulley 15 with a ratchet gear, and the belt 26 is also stretched over the pulley 16 with a ratchet gear. Therefore,
The tension of the belt 25 is held by the pulley 23 and the free pulley 29, and the tension of the belt 26 is held by the pulley 24 and the free pulley 30. For this reason, the tension of the belts 25 and 26 is biased on the pulleys 15 and 16 with the ratchet gear (only in one direction).
As described later, it is possible to prevent an increase in the idling resistance of the ratchet gear. The belt 25 is connected to a pulley 15 with a ratchet gear as shown in FIG.
In this case, the diameter of the free pulley 29 is made sufficiently smaller than the diameter of the pulley 15 with the ratchet gear, and the free pulley 29 is connected to the pulley with the ratchet gear. 15, the length of the portion where the belt 25 is wound around the pulley 15 with the ratchet gear can be increased,
Power transmission from the pulley 15 with the ratchet gear to the belt 25 can be made sufficient. Further, a timing belt may be used instead of the belt 25, and a pulley for a timing belt may be used instead of the pulley 15 with a ratchet gear. In this case, sufficient power transmission is possible even if the length of the portion where the timing belt is wound around the pulley with the ratchet gear is relatively short. Belt 2
The same applies to the relationship between 6 and the pulley 16 with a ratchet gear.

Here, the rotating shaft 13 corresponds to the driving rotating shaft in the present invention, and the pulleys with ratchet gears 15 and 16 correspond to the first and second rotating bodies with a ratchet mechanism in the present invention, respectively. Reference numerals 21 and 22 respectively correspond to first and second rotary output shafts of the present invention, and pulleys 23 and 24 correspond to rotary bodies fixed to the first and second rotary output shafts of the present invention, respectively. The free pulleys 29 and 30 correspond to the first and second free rotating bodies in the present invention, respectively, and the belts 25 and 26 correspond to the first and second rotation transmitting members in the present invention.

The pulley 15 with a ratchet gear is
In this case, only one of the two rotational directions, i.e., the rotational movement in the counterclockwise direction, is transmitted to the torque transmitting rod 21 via the belt 25 and the pulley 23. Similarly, the pulley 16 with the ratchet gear is connected to the pulley 14.
Only the other rotational direction of the two rotational directions, for example, the clockwise rotational movement, is transmitted to the torque transmission rod 22 via the belt 26 and the pulley 24.
The torque transmission rod 21 and the torque transmission rod 22 are connected to a device using the obtained rotational energy, for example, a power generation device (not shown).

FIGS. 3 and 4 show an example of a pulley 15 with a ratchet gear using a one-way clutch. The pulley with ratchet gear 1
Reference numeral 6 denotes a structure which is symmetrical to the one shown in FIGS. Pulley 15 with ratchet gear shown in these figures
Has a plurality of roller storage portions 31 on the inner peripheral side. In each roller storage portion 31, a roller 32 and a spring 34 for urging the roller 32 toward the cam surface 33 are stored. In this pulley 15 with a ratchet gear, as shown in FIG. 3, when the rotating shaft 13 rotates counterclockwise, the spring 3
The roller 32 comes into contact with the cam surface 33 by the action of 4, and the pulley 15 with the ratchet gear rotates by the wedge action of the cam face 33 and the rotating shaft 13. On the other hand, as shown in FIG. 4, when the rotating shaft 13 rotates clockwise, the roller 32 separates from the cam surface 33 and the pulley 1 with the ratchet gear.
5 does not rotate. On the other hand, the pulley 16 with the ratchet gear does not rotate when the rotating shaft 13 rotates in the counterclockwise direction, but rotates when the rotating shaft 13 rotates in the clockwise direction.

The pulleys with ratchet gears 15 and 16
Instead of a pulley without a ratchet gear
3 and a pulley with a ratchet gear may be provided on the torque transmission shafts 21 and 22 instead of the pulleys 23 and 24, respectively. In this case, the free pulleys 29, 3
0 is disposed on the opposite side of the rotation shaft 13 with respect to the torque transmission shafts 21 and 22, and the belts 25 and 26
Are respectively stretched between the pulleys fixed to the rotating shaft 13 and the free pulleys 29 and 30 so that the torque transmitting shaft 2
Pulleys with ratchet gears 1 and 22 to belts 25 and 2
It is sufficient to sandwich it from both sides with 6.

Next, the operation of this water surface wave energy converter will be described.

In this energy conversion device, when the water surface 18 moves up and down, the float 19 moves up and down, whereby the pulley 14 rotates while alternately changing the rotation direction.
Here, when the water level rises, the buoyancy acting on the float 19 increases, and [weight of the counterweight 20-(weight of the float 19-buoyancy acting on the float 19)] rotates the pulley 14 clockwise in the figure. When the water level is lowered, the buoyancy acting on the float 19 is reduced, so that [(weight of the float 19-float 1
9)-the weight of the counterweight 20) creates a torque that causes the pulley 14 to rotate counterclockwise in the figure.

The rotational movement of the pulley 14 in the counterclockwise direction is transmitted to the torque transmission rod 21 via the pulley 15 with the ratchet gear, the belt 25 and the pulley 23. On the other hand, the clockwise rotation is transmitted to the torque transmission rod 22 via the pulley 16 with the ratchet gear, the belt 26 and the pulley 24. Accordingly, the torque transmission rod 21 and the torque transmission rod 22 rotate in directions opposite to each other, but their rotation directions are always constant. In this manner, the vertical fluctuation of the water surface 18 is converted into a rotational motion in which the rotational direction does not change.

Here, as described above, the belt 25 is not directly stretched between the pulley 23 and the pulley 15 with the ratchet gear.
And the pulley 15 with a ratchet gear is not subjected to tension in the biased direction by the belt 25. For this reason, the belt 25 is connected to the pulley 2
As compared with the case where the pulley 15 is directly bridged between the pulley 15 and the ratchet gear 15, the idling resistance of the pulley 15 with the ratchet gear can be considerably reduced. The same applies to the belt 26, and the provision of the free pulley 30 makes it possible to reduce the idling resistance of the pulley 16 with the ratchet gear. Therefore, the energy conversion efficiency can be further improved.

By the way, the position of the draft surface when the water level rises and when the water level falls may slightly change from the position of the draft surface when the water is still. This change in the position of the draft surface changes the buoyancy, resulting in a loss of energy conversion. In order to reduce this loss, it is advantageous that the shape of the float 19 is a flat shape in which the cross-sectional area is maximum at the position of the draft surface at the time of still water and the cross-sectional area decreases as the distance from the draft surface increases. In the simplest case, when the position of the draft surface at the time of still water is the center height of the float 19, as shown in FIG. 1, the cross-sectional area becomes maximum at the position of the center height of the float 19. It is preferable to have a flat spherical shape.

In this embodiment, by increasing the diameter of the pulley 14, the torque at the energy input source can be given a margin. With such a configuration,
After the torque from the last component is input, the rotational speed is increased using the transmission, so that a power generation device (not shown) can generate power efficiently.

FIG. 5 shows an example in which a plurality of the energy conversion devices shown in FIG. 1 are connected. In this example, the energy conversion device shown in FIG. 1 is used as one unit, and a plurality of units 40-1 to 40-N are connected to the torque transmission rods 21-1 to 21-1.
21-N and 22-1 to 22-N are arranged along the axial direction. Torque transmission rods 21-1 to 21-N of each unit
And the torque transmission rods 22-1 to 22-N are mutually connected by a universal joint (not shown). The support plate 11 of each unit is provided with the torque transmission rods 21-1 to 21-21 of each unit.
−N, 22-1 to 22-N support the respective constituent elements so as to be arranged on a substantially straight line, respectively, and are finally connected and fixed to each other.

The last stage (output side of rotational energy)
Between the unit 40-N and a device that uses rotational energy such as a generator (not shown).
A torque synthesizing device 43 for aligning the torques transmitted in the opposite directions transmitted by the motor 22-N in one direction is provided. Further, a rotation shaft 44a of the torque synthesizing device 43 and the transmission rod 21 are arranged.
−N, and between the rotation shaft 44b of the torque synthesizer 43 and the torque transmission rod 22-N, respectively, to prevent transmission of return torque from the torque synthesizer 43 side to the unit 40-N at the preceding stage. Ratchet gears 41a and 41b are inserted.

Here, the torque synthesizer 43 corresponds to the synthesizing means in the present invention, and the ratchet gears 41a and 41b correspond to the third ratchet mechanism in the present invention.

FIG. 6 shows a schematic structure of the torque synthesizer 43. In the torque synthesizer 43, the gear 52 is attached to the combined output shaft 44a, and the gear 53 is attached to the combined output shaft 44b.
Are engaged. With this configuration, the clockwise torque transmitted from the torque transmission rod 22-N to the composite output shaft 44b via the ratchet gear 41b is applied to the gear 5
The rotation direction is changed by 3, 52 and transmitted to the combined output shaft 44a as a counterclockwise torque. Similarly, the counterclockwise torque transmitted from the torque transmission rod 21-N to the composite output shaft 44a via the ratchet gear 41a is:
The rotation direction is changed by the gears 52 and 53 and transmitted as clockwise torque to the combined output shaft 44b. After all,
It is possible to combine the torques transmitted from the torque transmission rods 21-N and 22-N to the combined output shafts 44a and 44b, respectively, and to output the combined output shaft 44a or the combined output shaft 44b as rotation in a fixed direction. Become. And
This rotational energy is converted into electric energy in a generator (not shown).

FIGS. 7 and 8 show a ratchet gear 41a using a one-way clutch as an example. The ratchet gear 41b has a symmetrical structure with respect to that shown in FIGS. As shown in these drawings, the ratchet gear 41a has a structure similar to that of the ratchet gear shown in FIG. 3, and the description of the structure is omitted, and only the operation will be described. Note that the structure of the ratchet gear 41a is not limited to the examples shown in FIGS. 7 and 8, and other structures can be used as long as the following operations and effects can be obtained.

In FIG. 7, when the torque transmitting rod 21-N rotates counterclockwise, the roller 72 contacts the cam surface 73 by the action of the spring 74, and the cam surface 73 and the torque transmitting rod 21-N are connected to each other. Of the combined output shaft 44
a rotates. On the other hand, as shown in FIG. 8, when the combined output shaft 44a rotates clockwise, the rollers 72 separate from the cam surface 73, and the torque transmission rod 21-N does not rotate. That is, the ratchet gear 41a is connected to the torque transmission rod 21-
The counterclockwise rotation of N is transmitted to the combined output shaft 44a on the torque combiner 43 side, but the counterclockwise rotation of the combined output shaft 44a is not transmitted to the torque transmission rod 21-N. .

On the other hand, in the ratchet gear 41b, when the torque transmission rod 22-N rotates clockwise, the composite output shaft 44b rotates in the same direction, but the composite output shaft 44b rotates clockwise. In this case, the torque transmission rod 22-N does not rotate. That is,
The ratchet gear 41b controls the clockwise rotation of the torque transmission rod 22-N by using the combined output shaft 44 on the torque combiner 43 side.
b, but the clockwise rotation of the composite output shaft 44b is not transmitted to the torque transmission rod 22-N.

By adopting such a structure, advantageous results can be obtained in the following points. That is, as described in FIG. 6, if the float 19 (FIG. 1) rises and the combined output shaft 44b rotates clockwise, the gear 5
The combined output shaft 44a is forcibly rotated counterclockwise through the gears 3, 52 and the ratchet gear 51. At this time, if the combined output shaft 44a is connected to the torque transmission rod 2 at the preceding stage,
If it is directly connected to 1-N, the rotation of the combined output shaft 44a will also rotate the torque transmission rod 21-N, and eventually all of the torque transmission rods 21-1 to 21-N will be rotated. . On the other hand, if the float 19 (FIG. 1) descends and the combined output shaft 44a rotates counterclockwise, the ratchet gear 51 and the gears 52, 53
, The composite output shaft 44b is forcibly rotated clockwise. At this time, if the combined output shaft 44b is directly connected to the torque transmission rod 22-N at the preceding stage, the rotation of the combined output shaft 44b also causes the torque transmission rod 22-N to rotate. -1 to 2
All of 2-N will be rotated. These rotations are originally absorbed by the idle rotation of the pulleys 15 (16) with the ratchet gear in each of the units 40-1 to 40-N, so that they should not be transmitted to the pulley 14 and become a load. is there. However, actually, due to the influence on the accuracy at the time of installation and the like, the slip resistance of the pulley 15 (16) with the ratchet gear may become so large that it cannot be ignored. In this case, the sum of the idling resistances of the pulleys with ratchet gears 15 (16) in each unit becomes a considerable load, and the rotational energy transmitted from the combined output shaft 44a (44b) to the combined output shaft 44b (44a) is reduced. The end result is consumption.

On the other hand, as in the present embodiment (FIG. 5), when single ratchet gears 41a and 41b are respectively inserted in front of the combined output shafts 44a and 44b, Transmission of torque from the combined output shaft 44a (41b) to the torque transmission rod 21-N (22-N) is almost completely cut off. The ratchet gears 41a and 41b have a relatively simple structure and can be manufactured with less idling resistance than the pulleys 15 and 16 with ratchet gears.
This is because it can be almost completely separated from -1 to 40-N.

As described above, in the energy conversion device in which the plurality of units 40-1 to 40-N are connected as in the present embodiment, the rotational motion of the pulley 14 in one rotational direction in each unit is transmitted by one torque transmission. The rotation of the pulley 14 in each unit in the other rotational direction can be transmitted to one torque transmission rod 22-1 or the like. Moreover, when performing torque synthesis in the torque synthesizer 43, the shaft rotation of the forcibly driven side is separated from the motion of each of the units 40-1 to 40-N in the preceding stage, so that unnecessary load is applied. As a result, energy can be prevented from being wasted, and as a result, energy conversion efficiency can be improved.

In this embodiment, advantageous results can be obtained in the following points. That is, in the case where the traveling direction of the wave is not perpendicular to the arrangement direction of the units 40-1 to 40-N, or in the case of a complicated wave having a short wave peak line, the position of each unit 40-1 to 40-N is Since the vertical movement directions of the water surface are different, the idle rotation of the pulleys 15 and 16 with the ratchet gear occurs in the individual units 40-1 to 40-N. However, in the energy conversion device according to the present embodiment, as described above, by providing the free pulleys 29 and 30, the pulleys 15 and 16 with ratchet gears are respectively biased by the belts 25 and 26 in the biased directions. The structure is such that tension is not applied. For this reason, it is possible to considerably reduce the idling resistance of the pulleys 15 and 16 with the ratchet gear. Therefore, the energy conversion efficiency can be further improved.

FIG. 5 shows units 40-1 to 40-40.
Although an example is shown in which −N is arranged in one row, these units may be arranged in a plurality of rows, and the energy obtained in each of these rows may be combined.

As described above, the water surface wave energy converter of the first embodiment has a simple structure and is easy to install. In addition, as long as there is little restriction on the installation location and there is only a water surface fluctuation that is not extremely short cycle, water surface wave energy can be efficiently converted into rotational energy.

Further, according to the present embodiment, since the horizontal dimensions of the individual floats 19 can be reduced, the energy conversion efficiency is greatly reduced by leveling the water surface in the horizontal direction. It is reduced. That is,
Even in the case of a wave having a relatively short wavelength, there is little restriction, and energy can be efficiently extracted.

Further, according to the present embodiment, the pulley 14
By increasing the arm length, that is, by increasing the radius of the pulley 14, a large torque can be obtained. When the torque at the energy input source is large, the power of the counterweight 20 can be doubled and taken out. This magnification is determined in consideration of the followability of the float 19 to fluctuations in the water level in the ratio of the torque required in the final stage to the torque at the input source.

Further, in the water surface wave energy conversion device according to the present embodiment, the ratchet gear, which is a fatigue component, can be easily replaced, so that it can be used for a long time.

FIGS. 9 to 14 show the second embodiment of the present invention.
1 shows a configuration of a water surface wave energy conversion device according to an embodiment of the present invention. 9 is a front view of the energy conversion device, FIG. 10 is a cross-sectional view taken along line BB of FIG. 9, and FIG.
Reference numeral 1 denotes a cross-sectional view along the line CC in FIG.
Note that the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, as shown in FIGS. 9 to 11, idler pulleys 113 and 114 are attached to the support plates 11 and 11 on both sides of the pulley 14, respectively. Seawater resistant rope 17 wrapped around pulley 14
Is connected to the water surface 1 via one idler pulley 113.
8, a float 19 is attached to the end of the float 19 and floats on the water surface 18. The other end of the rope 17 is suspended from the water surface 18 via the other idler pulley 114, and a counter weight 115 having a smaller weight in water than the weight of the float 19 is attached to the tip of the other end. In the present embodiment, the counter weight 115
Is set to move up and down in water in order to prevent the counterweight 115 itself from swinging in strong winds. Further, unlike the first embodiment, the shape of the counter weight 115 has a streamline shape that is long in the vertical direction, and reduces the fluid resistance during the vertical movement.

A rotary shaft 116 is provided on the support plates 11, 11 below the torque transmitting rod 21, and pulleys 118, 119 are coaxially mounted on the rotary shaft 116. A rotating shaft 120 is provided on the support plates 11 and 11 below the torque transmission rod 22.
Pulleys 121 and 122 are coaxially attached to 20. The belt 1 is located between the pulley 119 and the pulley 23.
11, and a belt 112 is stretched between the pulley 122 and the pulley 24.

Further, the rotating shaft 1 is provided on the support plates 11, 11.
3, pulleys 125 and 126 are mounted on the opposite sides of the torque transmission rods 21 and 22, respectively. The belt 25 is stretched between the pulley 118 and the free pulley 126, and the belt 26 is stretched between the pulley 121 and the free pulley 125. The belt 25 is also stretched over the pulley 15 with a ratchet gear.
The belt 26 is also stretched around the pulley 16 with a ratchet gear. Therefore, the tension of the belt 25 is held by the pulley 118 and the free pulley 126,
Is held by the pulley 121 and the free pulley 125. For this reason, the tension of the belts 25 and 26 is not applied to the pulleys 15 and 16 with ratchet gears in a biased manner (only in one direction), so that an increase in the idle resistance of the ratchet gear can be prevented. In addition,
The belt 25 is connected to the pulley 1 with a ratchet gear as shown in FIG.
5 is extended over only a part, not the entire circumference, in this case, as in the above embodiment, the diameter of the free pulley 29 is made sufficiently smaller than the diameter of the ratchet geared pulley 15 and By arranging the free pulley 29 in the immediate vicinity of the pulley 15 with the ratchet gear, the length of the portion where the belt 25 is wound around the pulley 15 with the ratchet gear can be increased, and the pulley 1 with the ratchet gear 1 can be formed.
Power transmission from the belt 5 to the belt 25 can be made sufficient. Further, a timing belt may be used instead of the belt 25, and a pulley for a timing belt may be used instead of the pulley 15 with a ratchet gear.
In this case, sufficient power transmission is possible even if the length of the portion where the timing belt is wound around the pulley with the ratchet gear is relatively short. The same applies to the relationship between the belt 26 and the pulley 16 with a ratchet gear.

In this embodiment, as shown in FIG. 11, the pulley 119 with a spring is provided with a shock absorbing device 127 on its rear surface. The shock absorber 127 relieves the impact of torque load on the ratchet geared pulleys 15 and 16 that occurs when the water level switches between rising and falling in normal times, and when the water level changes suddenly under severe wave conditions such as breaking waves. This is to provide a function of storing energy. Although not shown, the spring-loaded pulley 122 also includes a similar buffering device 127.

That is, as shown in FIG. 11, the end of the rotating shaft 116 is connected to the two support plates 11
Are rotatably supported via bearings 51 and 52, and a pulley 119 with a spring is attached between the support plates 11 and 11 of the rotating shaft 116. The spring 46 of the pulley 119 with a spring is housed in a cylindrical case 45 attached to the side surface of the pulley 119 with the spring. FIGS. 12 and 13 show a state where the mainspring spring 46 is stored.
a is fixed to the inner wall surface of the case 45, and the other end 46b is fixed to the surface of the rotating shaft 116. FIG. 12 shows a state in which the mainspring 46 is unwound, and FIG.
Reference numeral 6 denotes a state in which it is wound.

In the shock absorbing device 127, when the rotating shaft 116 rotates due to rising or falling of the water level in normal times and sudden change of the water level under severe wave conditions such as breaking waves, the mainspring spring 46 is tightened, and then gradually. Pulleys with ratchet gears 15 and 1
6 to mitigate the impact of the torque load and store strain energy. The rotational energy transmitted to the rotating shaft 116 is transmitted to a power generator (not shown) via a belt 111 wound around a pulley 119 with a mainspring spring.

Here, considering the balance at rest, the balance equation in the present embodiment is as follows.

[0069]

(S ₂ −1) · w · V ₂ = (S ₁ −α) · w · V ₁ (3)

When S ₁ is obtained by modifying the above equation, the following equation is obtained.

[0071]

S ₁ = α + (S ₂ −1) · V ₂ / V ₁ (4)

Also in the present embodiment, the specific gravity (that is, the material) S ₁ of the float 19 is set based on the draft rate α, the specific gravity S _{2 of the} counterweight 20 and the volume V ₂ , and the shape and balance are taken into consideration. The volume ratio V ₂ / V ₁ is obtained by using the above equation (4). In addition, it is advantageous to increase the tension of the rope 17 in order to suppress the horizontal movement of the float 19 due to waves and currents on the sea surface,
Based on this, the float 19 is obtained from the above equations (3) and (4).
The specifications of the counter weight 115 may be determined.

In the water wave energy converting apparatus of the present embodiment, when the water surface 18 fluctuates up and down, the float 19 moves up and down, whereby the pulley 14 rotates while alternately changing the rotation direction. Here, when the water level rises, the buoyancy acting on the float 19 increases, and the (weight of the counterweight 115 (underwater weight) − (weight of the float 19−buoyancy acting on the float 19)) is obtained by rotating the pulley 14 clockwise in the drawing. Creates a torque to rotate in the direction, and when the water level falls, the buoyancy acting on the float 19 decreases,
[(Weight of float 19-buoyancy acting on float 19)-weight of counterweight 115 (underwater weight)] creates a torque that rotates pulley 14 in the counterclockwise direction in the figure.

The rotation of the pulley 14 in the counterclockwise direction is transmitted to the rotary shaft 116 via the pulley 15 with the ratchet gear, the belt 25 and the pulley 118. The rotation of the rotation shaft 116 is controlled by a pulley 119,
Torque transmission rod 2 via belt 111 and pulley 23
1 is transmitted. On the other hand, the clockwise rotation is performed by the pulley 16 with the ratchet gear, the belt 26 and the pulley 12.
1 to the rotating shaft 120. This rotating shaft 12
The rotational motion of 0 is transmitted to the torque transmission rod 22 via the pulley 122, the belt 112, and the pulley 24. Therefore, also in the present embodiment, the torque transmission rod 21 and the torque transmission rod 22 rotate in directions opposite to each other, but their rotation directions are always constant. In this way, the vertical fluctuation of the water surface 18 is converted into a rotational motion in which the rotational direction does not change.

In the shock absorber 127 attached to the back surface of each of the pulleys 119 and 122, the rotating shaft 116 and the rotating shaft 116 are rotated by the rise or fall of the water level in normal times, and by the sudden change of the water level under severe wave conditions such as breaking waves. When the shaft 120 rotates, the mainspring spring 46 is tightened and then gradually unwound to relieve the impact of torque load on the ratchet pulleys 15 and 16 and to store strain energy.

Here, as described above, the belt 25 is not stretched directly between the pulley 118 and the pulley 15 with the ratchet gear, but is stretched between the pulley 118 and the free pulley 126. Pulley 1 with ratchet gear
5 has a structure in which a tension in a biased direction by the belt 25 is not applied. Therefore, compared with the case where the belt 25 is directly stretched between the pulley 118 and the pulley 15 with the ratchet gear, the pulley 1 with the ratchet gear
It is possible to make the idling resistance of No. 5 considerably small. The same is true for the belt 26. By providing the free pulley 125, it is possible to reduce the idling resistance of the pulley 16 with the ratchet gear. Therefore, the energy conversion efficiency can be further improved.

FIG. 14 shows an example in which a plurality of the energy conversion devices shown in FIG. 9 are connected. In this example, FIG.
Is a single unit, and a plurality of units 130-1 to 130-N are connected to the torque transmission rod 2
1-1 to 21-N and 22-1 to 22-N are arranged along the axial direction, and the torque transmission rods 21-1 to 21- of each unit are arranged.
N and the torque transmission rods 22-1 to 22-N are connected by a universal joint (not shown). In addition, the support plate 11 of each unit 130-1 to 130-N is provided with the torque transmission rod 21-1 of each unit 130.
21-N, 22-1 to 22-N support the respective constituent elements so as to be arranged on a substantially straight line, and finally are connected and fixed to each other, and the torque transmission rod 21-N N, 22-N and the rotating shaft 44 of the torque synthesizer 43
and ratchet gears 41a, 41b, respectively.
1b is the same as in the first embodiment (FIG. 5).

In the present embodiment, the rotation shafts 44a,
A single ratchet gear 41 is provided at each preceding stage of 44b.
a, 41b, the rotating shaft 44a (41
The transmission of torque in the return direction from b) to the torque transmission rod 21-N (22-N) is almost completely cut off. The ratchet gears 41a and 41b are connected to pulleys 15 and 16 with ratchet gears.
In comparison with the above, a relatively simple structure can be manufactured with less idling resistance, and the movement in the return direction from the torque synthesizer 43 can be almost completely separated from the units 40-1 to 40-N. Therefore, the torque synthesizer 4
When performing torque synthesis in 3, the shaft rotation on the forcibly driven side is separated from the motion of each of the preceding units 40-1 to 40-N, so that energy is wasted by unnecessary loads. The energy conversion efficiency can be improved as a result.

Further, in the present embodiment, since the shock absorbers 127 are provided for each of the units 130-1 to 130-N, each of the shock absorbers 127 is a sum of the torque loads from all the units. It does not always take. Therefore, the function as a buffer element against the fluctuation of the torque input from each unit 130 can be sufficiently exhibited.

Having described the specific embodiment of the present invention, a method of installing the water surface wave energy converter will now be described.

This energy conversion device may be installed at a position close to the land shore, or may be installed at a position relatively distant from the land shore. In the case of installation near the shore, for example, just like erection of a bridge, several concrete piers (piers) are arranged, and a grid girder (or perforated plate) is placed on them to make a support base. The energy conversion device according to the above embodiment is mounted on a table. In reality, it can be installed as ancillary facilities under a bridge such as a bay bridge. This method can also be used when natural terrain such as rocks exposed on the sea surface can be used. On the other hand, when installed at a position away from the shore, for example, on a large floating body such as a waste ship, for example, projecting a plurality of support bases on the sea surface in the form of a double balance, placing the grid girder support on this, The energy conversion device according to the above-described embodiment is set on the support base. In addition, in order to prevent the float 19 from being largely moved in the lateral direction, it is preferable that the weight is submerged on the seabed, and the weight and the lower end of the float 19 are connected by a chain.

Next, a method of using the energy conversion device will be described.

Normally, on the sea, the wave energy at a specific place fluctuates greatly with time. As a method of smoothing this, it is conceivable to use the energy conversion device of the present invention together with the ocean temperature difference power generation. That is, the energy obtained by the wave power generation is temporarily converted into heat energy and used as a high-temperature source for ocean temperature difference power generation. In addition, it may be used in combination with pumped storage power generation. That is, the energy obtained by the wave power may be used for pumping water from the lower pond to the upper pond, and the energy for general supply may be energy generated when descending from the upper pond to the lower pond.

Further, the energy conversion device of the present embodiment can be used as an energy source for primary conversion for wave power generation and for water exchange between a closed water area and the open sea. Further, in this energy conversion device, when the incident wave passes through an energy conversion device having a plurality of rows of float groups, the energy of the water level fluctuation is lost. Therefore, this energy conversion device can be expected to have a wave breaking effect, that is, a function as a breakwater. Also, unlike ordinary breakwaters, this device does not affect seawater exchange due to tides, so the bottom water whose quality has deteriorated does not stay in the bay, and furthermore, it is necessary to construct a normal breakwater. There is no such thing as changing the seafloor terrain.

The present invention is not limited to the above embodiments but can be variously modified. For example, in the first embodiment, the torque synthesizer 43 is configured by two gears, but may be configured by combining more gears. Further, in the second embodiment, the shock absorber 127 using the mainspring 46 has been described. However, a torque limiter may be used as the shock absorber, and a torque larger than a predetermined value may not be transmitted. In the above embodiment, the belts 25 and 26 serve as the first and second rotation transmitting members for transmitting torque.
, But instead of a chain, pulleys 15 and 1 as first and second rotating bodies with a ratchet mechanism are used.
6, pulleys 23 and 2 as first and second rotating bodies
4, and a chain gear may be used instead of the free pulleys 29 and 30 as the first and second free rotating bodies.

Further, in each of the above embodiments, the case where the present invention is applied to the water surface wave energy conversion device has been described. However, the present invention is not limited to this, and the present invention is not limited to this. Alternatively, the present invention can be widely applied to a device for extracting both rotational motions and a device for synthesizing the extracted rotational energy.

[0087]

As described above, the rotational energy extracting device according to claim 1, or claim 7 or claim 1
According to the rotational energy extracting device described in Item 1, the tension of the rotation transmitting member is not applied to the rotating body with the ratchet mechanism in one direction due to the presence of the tension blocking means. An increase in resistance can be prevented. Therefore, there is an effect that the extraction efficiency of the rotational energy is improved.

The rotational energy extracting device according to claim 2, the water wave energy converting device according to claim 4, the rotational energy extracting device according to claim 8 or 12, and the rotational energy extracting device according to claim 9 or 13. According to the synthesizing device or the water wave energy converting device according to claim 10 or claim 14, the tension of the first and second rotation transmitting members is respectively reduced by the presence of the first and second tension blocking means. Since the first and second rotating bodies with a ratchet mechanism are not applied in one direction, it is possible to prevent an increase in the idling resistance of the ratchet mechanism in the first and second rotating bodies with the ratchet mechanism. Therefore, the extraction efficiency of rotational energy in each direction is improved. As a result, in the water surface wave energy converter according to claim 4,
There is an effect that the conversion efficiency of water wave energy is improved.

According to the third aspect of the present invention, the rotational energy from the first rotary output shaft and the second rotary output shaft is synthesized by the synthesizing means. At this time, the rotational motion is transmitted from the first rotation output shaft and the second rotation output shaft to the combining means, but the rotation is transmitted from the combining means to the first and second rotation output shafts. Does not transmit rotational motion.
For this reason, it is possible to prevent the rotational energy obtained from one of the rotary output shafts from being consumed by the other rotary output shaft, and to achieve an effect of improving the efficiency of synthesizing the rotational energy.

According to the water surface wave energy conversion device of the fifth aspect, the water surface wave energy conversion device of the fourth aspect is used as a unit unit, and a plurality of units are arranged, and a plurality of first rotary output shafts and Since the plurality of second rotation output shafts are connected to each other, the position of each unit is different from the case where the traveling direction of the wave is not perpendicular to the arrangement direction of each unit or the case where the wave peak line is a complicated wave having a short wave peak line. Even if the vertical movement direction of the water surface is different and the idle resistance of the ratchet gear is generated in each unit, the idle resistance can be made sufficiently small, so that the energy loss can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a configuration of a water surface wave energy conversion device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view showing a part of a pulley with a ratchet gear using a one-way clutch.

4 is a partial cross-sectional view showing one operation state of the pulley with a ratchet gear of FIG. 3;

5 is a perspective view showing a water surface wave energy conversion device having a configuration in which a plurality of components shown in FIG. 1 are connected.

FIG. 6 is a diagram showing a main structure of the torque synthesizer.

FIG. 7 is a cross-sectional view illustrating an example of a ratchet gear inserted between a rotation shaft of a torque synthesizer and a torque transmission rod.

FIG. 8 is a sectional view showing an operation state of the ratchet gear of FIG. 7;

FIG. 9 is a front view illustrating a configuration of a water surface wave energy conversion device according to a second embodiment of the present invention.

FIG. 10 is a sectional view taken along the line BB of FIG. 10;

11 is a sectional view taken along the line CC of FIG.

FIG. 12 is a sectional view showing an attachment structure of a mainspring spring.

FIG. 13 is a sectional view showing one operation state of a mainspring spring.

14 is a perspective view showing a water surface wave energy conversion device having a configuration in which a plurality of components shown in FIG. 9 are connected.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 13 Rotation axis 14 Pulley 15 Pulley with ratchet gear (rotator with first ratchet mechanism) 16 Pulley with ratchet gear (rotator with second ratchet mechanism) 17 Rope 19 Float 20 Counterweight 21 Torque transmission rod (First) Rotation output shaft) 22 Torque transmission rod (second rotation output shaft) 23 Pulley (first rotation body) 24 Pulley (second rotation body) 25 Belt (first rotation transmission member) 36 Belt (second rotation output shaft) 29 Free pulley (first free rotating body) 30 Free pulley (second free rotating body) 41a, 41b Ratchet gear (ratchet mechanism) 43 Torque combining machine (combining means) 44a, 44b Combined output Shaft 127 shock absorber

Claims (14)

[Claims] 1. A drive rotation shaft that rotates alternately in two directions, a rotation output shaft that is separately provided from the drive rotation shaft, and a rotation in one rotation direction of the rotation motion of the drive rotation shaft. A rotating body with a ratchet mechanism having a ratchet mechanism for transmitting only motion to the rotary output shaft; and a rotary body for transmitting the rotational motion of the drive rotary shaft to the rotary output shaft via the rotary body with the ratchet mechanism. A rotation energy extracting device, comprising: a rotation transmitting member; and a tension blocking unit configured to prevent a tension of the rotation transmitting member from being applied to the rotating body with the ratchet mechanism in one direction. 2. A drive rotation shaft that rotates alternately in two directions, a first rotation output shaft and a second rotation output shaft that are separately provided from the drive rotation shaft, and a rotation of the drive rotation shaft. A first ratchet mechanism-equipped rotating body having a ratchet mechanism for transmitting only a rotational movement in one rotational direction of the movement to the first rotational output shaft; A second rotating body with a ratchet mechanism having a ratchet mechanism for transmitting only the rotational movement in the other rotational direction to the second rotation output shaft; and the driving mechanism via the first rotating body with a ratchet mechanism. A first rotation transmitting member for transmitting the rotational motion of the rotary shaft to the first rotary output shaft; and a second rotary transmission member for transmitting the rotational motion of the drive rotary shaft via the second rotary body with a ratchet mechanism. For transmitting to the rotary output shaft of the A rotation transmitting member; first tension blocking means for preventing a tension of the first rotation transmitting member from being applied in one direction to the first rotating body with a ratchet mechanism; and a second rotation transmitting member. A second tension stopping means for preventing the tension of the member from being applied in one direction to the second rotating body with a ratchet mechanism. 3. A drive rotation shaft that rotates alternately in two directions, a first rotation output shaft and a second rotation output shaft that are separately provided from the drive rotation shaft, and a rotation of the drive rotation shaft. A first ratchet mechanism-equipped rotating body having a ratchet mechanism for transmitting only a rotational movement in one rotational direction of the movement to the first rotational output shaft; A second rotating body with a ratchet mechanism having a ratchet mechanism for transmitting only the rotational movement in the other rotational direction to the second rotation output shaft; and the driving mechanism via the first rotating body with a ratchet mechanism. A first rotation transmitting member for transmitting the rotational motion of the rotary shaft to the first rotary output shaft; and a second rotary transmission member for transmitting the rotational motion of the drive rotary shaft via the second rotary body with a ratchet mechanism. For transmitting to the rotary output shaft of the A rotation transmitting member; first tension blocking means for preventing a tension of the first rotation transmitting member from being applied in one direction to the first rotating body with a ratchet mechanism; and a second rotation transmitting member. Second tension blocking means for preventing the tension of the member from being applied in one direction to the second rotating body with a ratchet mechanism; rotational energy output from the first rotary output shaft and the second rotational output Synthesizing means for synthesizing rotational energy output from the shaft into rotational energy in one rotational direction; and rotating motion from the first rotational output shaft and the second rotational output shaft to the synthesizing means. And a third ratchet mechanism for blocking transmission of rotational motion from the combining means to the first rotary output shaft and the second rotary output shaft. Rotational energy extraction and synthesis device 4. A drive rotation shaft that rotates alternately in both directions according to the vertical movement of the water surface, and a first rotation output shaft and a second rotation output shaft that are separately provided from the drive rotation shaft. A first rotating body with a ratchet mechanism having a ratchet mechanism for transmitting only a rotational movement in one rotational direction of the rotational movement of the drive rotary shaft to the first rotary output shaft; A rotating body with a second ratchet mechanism having a ratchet mechanism for transmitting only the rotational movement in the other rotational direction of the rotational movement of the shaft to the second rotational output shaft; and the first ratchet mechanism. A first rotation transmitting member for transmitting the rotational motion of the drive rotary shaft to the first rotary output shaft via a rotary body; and the drive rotary shaft via the second rotary body with a ratchet mechanism. Rotation movement of the second rotation output shaft A second rotation transmitting member for reaching the first rotation transmitting member; a first tension blocking means for preventing a tension of the first rotation transmitting member from being applied in one direction to the first rotating body with a ratchet mechanism; A second tension stopping means for preventing the tension of the second rotation transmitting member from being applied in one direction to the second rotating body with a ratchet mechanism. 5. The water surface wave energy converter according to claim 4, wherein a plurality of units are arranged as a unit, and a plurality of said first rotation output shafts and a plurality of said second rotation output shafts are arranged.
A water wave energy conversion device characterized in that the rotary output shafts are connected to each other. 6. The rotational energy output from the mutually connected first rotational output shafts and the plurality of second rotationally interconnected shafts.
Synthesizing means for synthesizing rotation energy output from the rotation output shaft of the first and second rotation output shafts into rotation energy in one rotation direction; and from the first rotation output shaft and the first rotation output shaft to the synthesis means. And a third ratchet mechanism for interrupting the transmission of the rotational motion from the combining means to the first rotary output shaft and the first rotary output shaft while transmitting the rotational motion. The water surface wave energy conversion device according to claim 4 or 5, wherein: 7. The rotating body with a ratchet mechanism is mounted on the drive rotation shaft, and the tension blocking means is rotatable about an axis disposed on the opposite side of the drive rotation shaft from the rotation output shaft. The rotation transmitting member extends from the rotating body fixed to the rotation output shaft to the free rotating body via a rotating body with a ratchet mechanism of the drive rotating shaft. The rotational energy extracting device according to claim 1, wherein the rotational energy is extracted. 8. The first rotating body with a ratchet mechanism and the second rotating body with a ratchet mechanism are mounted on the drive rotating shaft, and the first tension blocking means is configured to be the first rotating body with the ratchet mechanism. A first free rotating body rotatably disposed about an axis disposed on the side opposite to the first rotation output shaft, wherein the second tension blocking means is configured to rotate the second rotating shaft with respect to the driving rotating shaft. The first rotation transmitting member is configured as a second free rotating body that is rotatably disposed around an axis disposed on the side opposite to the rotation output shaft of the first rotation output shaft. The second rotation transmission member extends from the fixed rotation body to the first free rotation body via the first rotation body with the ratchet mechanism of the drive output shaft, The rotation of the drive output shaft from the rotating body fixed to the rotation output shaft Rotational energy extraction apparatus according to claim 2, wherein the through second ratchet mechanism with the rotating body is stretched to said second free rotor. 9. The first rotating body with a ratchet mechanism and the second rotating body with a ratchet mechanism are mounted on the drive rotating shaft, and the first tension blocking means is configured to be the first rotating body with the ratchet mechanism. A first free rotating body rotatably disposed about an axis disposed on the side opposite to the first rotation output shaft, wherein the second tension blocking means is configured to rotate the second rotating shaft with respect to the driving rotating shaft. The first rotation transmitting member is configured as a second free rotating body that is rotatably disposed around an axis disposed on the side opposite to the rotation output shaft of the first rotation output shaft. The second rotation transmission member extends from the fixed rotation body to the first free rotation body via the first rotation body with the ratchet mechanism of the drive output shaft, The rotation of the drive output shaft from the rotating body fixed to the rotation output shaft Rotational energy extracting synthesizing apparatus according to claim 3, wherein the via rotary member with a second ratchet mechanism is stretched to the second free rotor. 10. The first rotating body with a ratchet mechanism and the second rotating body with a ratchet mechanism are mounted on the drive rotating shaft, and the first tension blocking means is provided on the drive rotating shaft. A first free rotating body rotatably disposed about an axis disposed on the side opposite to the first rotation output shaft, wherein the second tension blocking means is configured to rotate the second rotating shaft with respect to the driving rotating shaft. The first rotation transmitting member is configured as a second free rotating body that is rotatably disposed around an axis disposed on the side opposite to the rotation output shaft of the first rotation output shaft. The second rotation transmission member extends from the fixed rotation body to the first free rotation body via the first rotation body with the ratchet mechanism of the drive output shaft, The rotation of the drive output shaft from the rotating body fixed to the rotation output shaft The water wave energy conversion device according to any one of claims 4 to 6, wherein the water surface wave energy conversion device is stretched over the second free rotating body via a second rotating body with a ratchet mechanism. 11. The rotating body with a ratchet mechanism is mounted on the rotation output shaft, and the tension blocking means is rotatable about an axis arranged on the opposite side of the rotation output shaft from the drive rotation shaft. The rotation transmitting member extends from the rotating body fixed to the drive rotating shaft to the free rotating body via a rotating body with a ratchet mechanism of the rotation output shaft. The rotational energy extracting device according to claim 1, wherein the rotational energy is extracted. 12. The rotator with the first ratchet mechanism is mounted on the first rotary output shaft, the rotator with the second ratchet mechanism is mounted on the second rotary output shaft, The tension blocking means is configured as a first free rotating body rotatably disposed about an axis disposed on the opposite side of the driving rotation axis with respect to the first rotation output shaft, and The tension blocking means is configured as a second free rotating body rotatably disposed about an axis disposed on a side opposite to the driving rotation axis with respect to the second rotation output shaft, and the first rotation The transmission member is stretched from the rotating body fixed to the driving rotating shaft to the first free rotating body via the rotating body with the first ratchet mechanism of the first rotating output shaft, The second rotation transmitting member includes a rotation fixed to the drive rotation shaft. Rotational energy extraction apparatus according to claim 2, characterized in that it is stretched to the second free rotation body through said second rotary member with the ratchet mechanism of the second rotary output shaft from the body. 13. The rotator with a first ratchet mechanism is mounted on the first rotary output shaft, the rotator with a second ratchet mechanism is mounted on the second rotary output shaft, The tension blocking means is configured as a first free rotating body rotatably disposed about an axis disposed on the opposite side of the driving rotation axis with respect to the first rotation output shaft, and The tension blocking means is configured as a second free rotating body rotatably disposed about an axis disposed on a side opposite to the driving rotation axis with respect to the second rotation output shaft, and the first rotation The transmitting member is stretched from the rotating body fixed to the driving rotating shaft to the first free rotating body via the rotating body with the first ratchet mechanism of the first rotating output shaft, The second rotation transmitting member includes a rotation fixed to the drive rotation shaft. 4. The rotational energy extracting / combining device according to claim 3, wherein the second rotational output shaft extends from the body to the second free rotating body via the second rotating body with a ratchet mechanism. . 14. The rotating body with the first ratchet mechanism is mounted on the first rotary output shaft, the rotating body with the second ratchet mechanism is mounted on the second rotary output shaft, The tension blocking means is configured as a first free rotating body rotatably disposed about an axis disposed on the opposite side of the driving rotation axis with respect to the first rotation output shaft, and The tension blocking means is configured as a second free rotating body that is rotatably disposed about an axis disposed on the side opposite to the drive rotation axis with respect to the second rotation output shaft, and the first rotation The transmission member is stretched from a rotating body fixed to the drive output shaft to the first free rotating body via the first rotating body with a ratchet mechanism of the first rotating output shaft, The second rotation transmitting member includes a rotation fixed to the drive output shaft. 7. The structure according to claim 4, wherein the second rotating output shaft extends from the body to the second free rotating body via the second rotating body with a ratchet mechanism. 2. The water surface wave energy conversion device according to 1.