JP2016048031A - Undershot wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an undershot wheel capable of obtaining strong rotational torque even in a running water area having a relatively small amount.SOLUTION: An undershot wheel is characterized such that a conveyor belt 40 including a running water receiving body 30 is installed between at least two rotors 20 installed in a base frame body 10. Each of the rotors installed at the front and rear sides of the base frame body is fixed by attaching a pair of rotary ring parts to both end part sides of a main shaft 21. The main shaft is rotatably pivoted to the respective base frame body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a water wheel, and more particularly to an underwater wheel suitable for a simple generator.

  Conventionally, as a water wheel used for power generation, an upper water wheel and a lower water wheel, which are constituted by a wheel-type rotating body to which water wheel blades are attached (see Patent Document 1) are generally used. However, since such a conventional water wheel is a wheel-type rotating body, there is a problem that a strong rotational torque cannot be obtained as a result of few turbine blades receiving flowing water at most. The reality is that it is unsuitable for installation in a watershed with relatively little water flow, such as an irrigation channel.

Japanese Patent Laid-Open No. 7-15148

  The present invention has been made in view of the above-described conventional problems and actual situations, and is a lower water turbine capable of efficiently rotating a water wheel shaft even in a relatively small water flow area such as a small and medium river or an agricultural waterway. It is an issue to provide.

  As a result of various studies to solve the above-mentioned problems, the present inventor does not attach the turbine blade to the rotating body itself, but attaches a running water receiving body to the conveyor belt, and at least between the two rotating bodies. It was found that if installed, extremely good results could be obtained, and the present invention was completed.

  That is, the present invention solves the above-described problems with a water turbine in which a conveyor belt having a running water receiving body is installed between at least two rotating bodies installed on a base frame. is there.

  In the present invention, since the running water receiving body is attached to the conveyor belt, the region in contact with the running water becomes longer, so the number of receiving bodies that receive running water can be increased. As a result, it is possible to obtain a stronger rotational torque than conventional wheel-type rotors, so power turbines, especially simple generators, are also used in relatively small water flow areas such as small and medium rivers and agricultural waterways. It can be suitably used as a driving water wheel.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. The schematic perspective view explanatory drawing of a base frame. (1) is a schematic side view of a rotating body, and (2) is a schematic front view of the same. Schematic upper surface explanatory drawing which shows the state which constructed the conveyor belt. Expansive sectional explanatory drawing of a conveyor belt. The schematic side surface explanatory drawing of a side-plate part. (1) is a schematic top view of a horizontal frame plate portion, and (2) is a schematic side view of the same. (1) is a schematic top view of a dust retaining shelf, and (2) is a schematic side view of the same.

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

  In FIG. 1 to FIG. 3, reference numeral 10 denotes a base frame, and two rotary bodies 20 are installed, one at each of the upstream end and downstream end at the time of riverbed installation. At the same time, a conveyor belt 40 including a running water receiving body 30 is installed between the two rotating bodies 20. The number of rotating bodies 20 to be installed is not particularly limited, and may be two or more.

  As shown in FIG. 4, the base frame body 10 is rotated by a pair of rectangular frame portions 11 and horizontal connecting plate portions 12 disposed at upper and lower portions between the pair of rectangular frame portions 11. A space that does not hinder the rotation of the body 20 is provided. In FIG. 4, reference numeral 21 denotes a main shaft of the rotating body 20.

As shown in FIGS. 3 and 5, each rotating body 20 installed in front of and behind the base frame body 10 is configured by attaching and fixing a pair of rotating wheel portions 22 to both ends of the main shaft 21. Each of the main shafts 21 is rotatably supported by the base frame 10. A substantially V-shaped groove 22a is formed on the peripheral end surface of the rotating wheel portion 22 to prevent the installed conveyor belt 40 from falling off the rotating wheel portion 22, and the conveyor belt 40, the rotating wheel portion 22, By increasing the frictional force accompanying the increase in the contact area, the rotational force of the main shaft 21 of the rotating body 20 can be increased.
The rotating body 20 is not particularly limited as long as the conveyor belt 40 can be installed. For example, a roll body or a gear can be used. However, the rotating body 20 is configured as described above in terms of drainage and light weight. The body 20 is desirable.

As shown in FIGS. 1 and 6, the flowing water receiving body 30 is configured by a flat bucket that opens to the upstream side when flowing water is received. The specific number of the rotating water receiving bodies 30 is two rotating bodies 20. Is appropriately determined according to the distance and the amount of running water.
The flowing water receiving body 30 is not particularly limited as long as it can receive flowing water. For example, a simple protruding plate-like body may be used, but the flowing water is received more efficiently, and the rotating body. In order to increase the rotational force of the 20 main shafts 21, it is desirable to use a bucket type having the above-described capacity.

As shown in FIGS. 2 and 7, the conveyor belt 40 is configured by a substantially V-shaped belt having a cross-sectional shape corresponding to the groove 22 a of the rotating wheel portion 22, and is disposed before and after the base frame body 10. A total of two are installed between each of the rotating wheel portions 22, and the flowing water receiving body 30 is attached and fixed between the two conveyor belts 40.
The conveyor belt 40 is not limited to a substantially V-shaped belt, but may be a flat belt (when the rotating body 20 is a roll body) or a chain belt (when the rotating body 20 is a gear) depending on the specific form of the rotating body 20. ) Etc. are appropriately selected and used.

As shown in FIG. 8, reference numeral 50 denotes a side plate portion. As shown in FIG. 8, several intakes 51 are appropriately formed, and at the downstream side edge of each intake 51, running water is drawn from the intake 51 to the base frame. An outwardly projecting plate 52 that guides the inside of the body 10 is attached. As shown in FIGS. 3 and 9, the side plate portions 50 are opposed to each other via a horizontal frame plate portion 60 that secures a rotation space portion 60 a of the rotating body 20 at both outer lower portions of the base frame body 10. is set up. Further, an outward projecting plate 61 that guides running water downward is attached to the downstream side edge portion of the upstream side rotation space portion 60a of the horizontal frame plate portion 60.
Since the amount of flowing water to the flowing water receiving body 30 can be increased by the side plate portion 50 and the horizontal frame plate portion 60, the rotational force of the main shaft 21 of the rotating body 20 can be further increased even in a small stream of flowing water. .

As shown in FIG. 10, reference numeral 70 denotes a dust locking fence portion, which is configured by projecting an appropriate number of fence bars 72 downwardly from a curved portion of a substantially U-shaped frame portion 71. The dust locking fence portion 70 is fixedly protruded and fixed to the front portion of the base frame 10 so that the fence rod 72 is on the upstream side, thereby allowing tree branches, plastic bottles, polystyrene foam pieces, and the like. The various kinds of garbage are locked and the garbage can be prevented from entering the base frame body 10, so that the running water receiving body 30 and the conveyor belt 40 come into contact with the garbage and cause a rotation trouble or the like. Can be prevented.
In addition, if the garbage locking fence portion 70 is formed of a material having buoyancy, such as wood or foam, the dust locking fence portion 70 floats up and down by the action of floating when the river water increases. This makes it possible to stabilize the operation of the flowing water receiving body 30, and hence the rotation of the conveyor belt 40, which is more desirable.

  Reference numeral 80 denotes a weight, which is attached to the base frame body 10 via a chain 81, whereby the base frame body 10 can be stably fixed and held on the riverbed. The number of weights 80 is not particularly limited, and may be two or more.

Next, the operation of the underwater turbine according to the above embodiment will be described.
First, if the underwater water turbine of the present invention is installed on the river bottom with the dust locking fence portion 70 on the upstream side and fixed with a weight 80, the running water passes through the dust locking rail portion 70 and enters the base frame body 10. Break into. At that time, various kinds of dust are locked by the dust locking fence portion 70 and are prevented from entering the base frame body 10. In addition, the flowing water that has passed through both the outer side and the upper side of the dust locking fence 70 is partly formed by the outward protruding plate 52 of the side plate 50 and the outward protruding plate 61 of the horizontal frame plate 60, respectively. It is introduced into the base frame body 10, and the amount of flowing water into the base frame body 10 is increased.

  The running water that has entered the base frame 10 moves the running water receiving body 30 in the downstream direction by the water force. Since the flowing water receiving body 30 is fixed to the conveyor belt 40, the conveyor belt 40 rotates as the flowing water receiving body 30 moves. Since the conveyor belt 40 is installed on the rotating body 20, the rotating wheel portion 22, and hence the main shaft 21 rotates as the conveyor belt 40 rotates. Therefore, if the main shaft 21 is connected to a generator or the like using the main shaft 21 as a drive shaft, efficient power generation or the like can be performed using the rotational force of the main shaft 21.

DESCRIPTION OF SYMBOLS 10: Base frame 11: Rectangular frame part 12: Horizontal connection board part 20: Rotating body 21: Main shaft 22: Rotating wheel part 22a: Groove 30: Running water receiving body 40: Conveyor belt 50: Side board part 51: Water intake 52: Outward protruding plate 60: Horizontal frame plate portion 60a: Rotating space portion 61: Outward protruding plate 70: Dust locking fence portion 71: Substantially U-shaped frame portion 72: Fence rod 80: Weight 81: Chain

Claims (6)

  An underwater turbine characterized in that a conveyor belt provided with a running water receiving body is installed between at least two rotating bodies installed on a base frame.   The underwater water turbine according to claim 1, wherein a pair of side plate portions having water intakes are disposed oppositely on both outer lower portions of the base frame body.   3. An underwater water turbine according to claim 1 or 2, wherein an outwardly projecting plate that guides running water to a water outlet is attached to each side plate portion.   The both side plate portions are attached and fixed via a horizontal frame plate portion that secures a rotation space portion of the rotating body, and an outward projecting plate for guiding the flowing water downward is attached to the horizontal frame plate portion. The underwater water turbine according to any one of claims 1 to 3, wherein   The underwater water turbine according to any one of claims 1 to 4, wherein a dust locking fence portion is attached and fixed to a front portion of the base frame body.   6. The underwater turbine according to claim 5, wherein the garbage locking fence is made of a material having buoyancy.

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