JPH0634036U - Wave power generator - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To make it possible to easily cope with cases where the structure is simple and the wave head is large. A movable body 12 having a float 14 is reciprocally arranged in a vertical direction in a fixed body 10 standing upright in the sea, and at least two pinions 28 that mesh with a rack 18 provided in the movable body, 30 is attached to the rotary shafts 20 and 22 provided on the fixed body via a one-way clutch so that the rotary shafts always rotate in opposite directions and in a fixed direction.
Further, the rotation of each rotating shaft allows the generator 40 to be always driven and rotated in the same direction via the power transmission mechanism.

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wave power generator, and in particular, the energy of vertical movement due to the wave motion of a member levitated in the sea is always transmitted to the generator as rotational energy in the same direction. The present invention relates to a wave power generation device.

[0002]

[Prior art and problems to be solved]

 Conventionally, a wave power generation device that uses buoyancy is usually configured to transmit the vertical movement of the float due to waves to the generator through many members to drive and rotate, and the structure is complicated and the range of vertical movement is However, there was a problem that it was difficult to deal with waves with large heads. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a wave power generation device which has a simple structure and can easily cope with a wave having a large head. It is a thing.

[0003]

[Means for Solving the Problems]

 The present invention has been made to achieve such an object, and the present invention is configured as follows. A: A fixed body that is erected at a fixed position in the sea, and a movable body that is vertically movable relative to the fixed body and that is provided with a float so that it can float in the sea. , The movable body is provided with a rack, and the fixed body is supported by at least two pinions that can be engaged with the rack, and each pinion is supported only in one rotation direction. The rotating shafts are coupled to each other via the one-way clutches capable of transmitting the rotational force, and the one-way clutches have mutually opposite directions capable of transmitting the rotational force. It can be driven and rotated, and each rotating shaft is connected to the drive shaft of the generator through a power transmission mechanism so that the generator rotates in the same direction. The waves that let you get driven into Power generator. B The wave power generation device according to Item A, wherein a one-way clutch is incorporated in the pinion to integrally configure the pinion and the one-way clutch. C The wave power generation device according to A or B, wherein the fixed body is fixed to a floating body serving as a sea base.

[0004]

[Action]

 In the present invention configured as described above, the one-way clutches provided between the pinion and the rotary shaft are configured to transfer the energy of the vertical movement due to the wave motion to the rotational energy of one direction at all times regardless of the vertical movement. The structure of the fixed body that slidably attaches the moving body up and down and the structure that engages the pinion with the rack make the fixed body and the rack longer, It works so that the range of vertical movement can be easily increased.

[0005]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 5, reference numeral 10 denotes a fixed frame body as a fixed body, and a movable frame body 12 as a movable body is arranged inside the fixed frame body so as to be vertically reciprocable. As shown in FIG. 3, the fixed frame body 10 has angle-shaped members arranged at four corners, which are appropriately connected by reinforcing members, and has a strength enough to withstand waves. The fixed frame body 10 has its base end side fixed to the seabed and its middle part always located on the sea surface, so that the tip part does not submerge even when the waves are high, and is not used. It is set high enough so that there is no obstacle. As shown in FIGS. 2 (a) and 2 (b), the moving frame 12 is integrally formed by appropriately connecting angle-shaped members arranged at the four corners with a reinforcing member as in the fixed frame 10 and moving inward. A float 14 that can generate sufficient buoyancy to float the frame itself is attached, and four corners are guided by guide rolls 16 attached to the inside of the fixed frame 10 as shown in FIG. It is possible to reciprocate upward and downward.

As shown in FIG. 2, the rack 18 is attached to the movable frame 12 in the longitudinal direction, and the fixed frame 10 has a pair of rotating shafts 20, 22 as shown in FIGS. 3 and 4. Are rotatably supported by bearings 24 and 26, respectively, and further, pinions 28 and 30 each having a built-in one-way clutch are attached to the rotary shafts 20 and 22, respectively, so that the pinions 28 and 30 can mesh with the rack 18. When the pinions 28 and 30 rotate in one direction, the rotary shafts 20 and 22 are driven in the same direction, and when the pinions 28 and 30 rotate in the opposite direction, the rotary shafts 20 and 22 are prevented from rotating. The directions in which the rotational force of the pinions 28 and 30 can be transmitted are opposite to each other. That is, when the moving frame 12 moves upward, the pinion 28 rotates clockwise as shown in FIG. 3, and the rotary shaft 20 is driven in the same direction, and when the moving frame 12 moves downward, the pinion 30 moves. Is driven counterclockwise as shown in the figure, and when the pinions 28, 30 rotate in the opposite direction, the rotary shafts 20, 22 do not rotate. The pinion with a built-in one-way clutch has the same structure as the freewheel of the rear wheel of the bicycle and is well known, so a detailed description thereof will be omitted. The one-way clutch does not have to have such a structure, but may have another structure as long as it can transmit the rotational force to only one side.

As shown in FIG. 5, a belt 36 is cross-engaged between the pulleys 32 and 34 attached to the rotating shafts 20 and 22, and the pulley of the generator 40 attached to the fixed frame 10 and the rotating shaft 20. A belt 42 is stretched between the pulley 40 and the pulley so that the generator 40 can rotate in the same direction regardless of the vertical movement of the moving frame 12.

In the apparatus having the above-described structure, when the moving frame body 12 having the float 14 is lifted upward by the squeezing waves, the pinion 28 meshing with the rack 18 rotates clockwise in FIG. Then, the rotating shaft 20 is driven in the same direction, the generator 40 is driven and rotated clockwise as shown in FIG. 5, and when the wave peaks pass, the moving frame body 12 descends by its own weight, and the pinion 30 is rotated. 3 rotates counterclockwise, the rotating shaft 22 is driven in the same direction, and the generator 40 is driven and rotated clockwise as shown in FIG. 5, and always rotates in a constant direction regardless of the vertical movement of the wave. Power is generated.

In the above-mentioned embodiment, the fixed frame body 10 has its base end fixed to the seabed, but instead of this, the side of the fixed frame body 10 is fixed to the wall surface of the equipment made of concrete or the like provided in the sea. It may be attached. Further, the fixed frame body 10 is not limited to one, but a plurality of fixed frame bodies may be attached. Furthermore, the fixed frame body can be fixed to a large floating body such as a sea base. Furthermore, in the above embodiment, the belt is used as the power transmission mechanism and the rotating shafts 20 and 22 are rotated in the opposite directions by crossing. However, instead of this, a gear train or other known means may be used. It is also possible to adopt it. Further, in the above embodiment, one rack 18 may be made to mesh with two pinions 28 and 30, but a pair of racks may be provided so that each pinion may be meshed separately. In the above embodiment, the rack and the pinion are provided between the fixed frame and the moving frame to convert the energy due to the vertical movement of the wave into rotational energy. However, the rack and the pinion are stopped and the moving frame is stopped. A screw shaft having a spiral groove is erected on the body and fixed, and at least two first rotating members are slidably and rotatably fitted to the screw shaft, and each first rotating member is fixed. A guide member that is rotatably supported by the frame body and that is provided so as to project from the fitting hole of the first rotating member is fitted into the spiral groove of the screw shaft, and the first and second moving frames move vertically. Of the first rotating member can be driven and rotated, and the rotating force of each first rotating member can be transmitted to the second rotating member only in one direction via each one-way clutch, and the rotating force of the one-way clutch can be transmitted. The directions are opposite to each other, By moving the moving frame up and down, each second rotating member is driven and rotated in a fixed direction, and the rotational force is transmitted to the generator by the power transmission mechanism in the same manner as in the above-described embodiment so that it is always rotated in a fixed direction. It is also possible. Note that two screw shafts may be provided upright, and the first rotating member, the one-way clutch, and the second rotating member may be attached to each of them. Also, the first rotating member may be arranged inside the second rotating member, and a one-way clutch may be incorporated in the middle of both members to be integrated. Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and it goes without saying that the present invention can be implemented in various modes without departing from the scope of the present invention. .

[0010]

[Effect of the Invention] The structure is simple because the moving body moves up and down in the fixed body due to the waves, and the rack and pinion are used to obtain the rotating energy to drive the generator. Occasionally, the one-way clutch is used to extract the rotational energy both when the moving body is moving up and when the moving body is moving down. Furthermore, since the moving body only moves up and down within the fixed body, the usable wave height range is large, and by setting the length of the fixed body and the moving body appropriately large, large waves can be It is easy to use for

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2A is a front view showing one member of the embodiment,
(B) is the top view.

FIG. 3A is a partially enlarged explanatory view of the embodiment, and FIG. 3B is a sectional view taken along line AA in FIG.

FIG. 4 is a view on arrow B in FIG.

FIG. 5 is an explanatory diagram showing a drive system of the embodiment.

[Explanation of symbols]

 10 Fixed Frame 12 Moving Frame 14 Float 18 Rack 20 Rotating Shaft 22 Rotating Shaft 28 Pinion 30 Pinion 40 Generator

[Procedure amendment]

[Submission date] February 14, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 4]

[Figure 5]

[Figure 3]

Claims (3)

[Scope of utility model registration request] 1. A fixed body which is erected at a fixed position in the sea, and a movable body which is arranged so as to be vertically reciprocable with respect to the fixed body and is provided with a float so as to be able to float in the sea. And at least two pinions capable of being engaged with the rack are provided on the movable body, and at least two pinions that are engageable with the rack are supported on the respective rotary shafts attached to the fixed body, and each pinion is rotated in one rotation direction. Only the one-way clutches capable of transmitting the rotational force are connected to the respective rotary shafts, and the respective one-way clutches have mutually opposite directions capable of transmitting the rotational force so that the respective rotary shafts are always opposite to each other and fixed in a certain direction. It can be driven and rotated, and each rotation shaft is connected to the drive shaft of the generator via a power transmission mechanism so that the rotation of the generator is in the same direction.
A wave power generation device in which a generator can always be driven in the same direction by vertical movement of a moving body caused by waves. 2. The wave power generation device according to claim 1, wherein a one-way clutch is incorporated in the pinion to integrally configure the pinion and the one-way clutch. 3. The wave power generator according to claim 1 or 2, wherein the fixed body is fixed to a floating body serving as a sea base.