JP5872266B2 - Power generator - Google Patents

Description

  The present invention relates to a power generator.

  Conventional power generation devices have mainly used fossil fuels or the like to convert them into electrical energy. However, resources such as fossil fuels are limited, and carbon dioxide, which causes global warming, or nitrogen oxides, which causes photochemical smog and acid rain, is generated, leading to deterioration of the global environment.

  Under such circumstances, various methods for obtaining electric energy from natural energy, for example, fluid energy such as hydraulic power and wind power, have been developed from the viewpoint of protecting the global environment.

  Patent Literature 1 and Patent Literature 2 disclose a wind-hydraulic power generation apparatus in which a plurality of rotor blades are installed around a rotating shaft. A plurality of rotor blades receive wind and hydraulic power, and the rotor blades revolve around the rotation axis. Since the rotary blade and the rotary shaft are connected via a connecting member, the rotary shaft rotates. The rotational energy of the rotating shaft is converted into electric energy and taken out.

JP 2008-42976 A JP 2002-242815 A

  In patent document 1 and patent document 2, since the rotating shaft exists in the center, the area of each rotary blade is small. There is a problem that the pressure receiving area that receives the flow of wind and water in the apparatus becomes small, and there is a problem in rotational efficiency, and that the apparatus becomes larger than the pressure receiving area.

  This invention is made | formed in view of the said matter, The objective is to provide a power generator with high rotational efficiency.

The power generator according to the present invention is
A fixed shaft having a fixed shaft gear on the peripheral surface;
A first planetary gear and a second planetary gear, each connected to the fixed shaft gear via an idler gear and swiveling around the fixed shaft;
A first semi-rotary blade rotating shaft fixed to the first planetary gear;
A second semi-rotary blade rotating shaft fixed to the second planetary gear;
A first half rotor and a second half rotor fixed respectively to the first half rotor blade and the second half rotor blade;
A blade turning gear that is slidably connected to each of the first half-rotating blade rotating shaft and the second half-rotating blade rotating shaft, and rotates about the fixed shaft;
An output gear capable of rotating by directly or indirectly meshing with the wing turning gear;
An energy conversion device that generates electric power by rotation of the output gear,
The first half rotor blade and the second half rotor blade are respectively connected to the first half rotor blade shaft and the second half rotor blade shaft from the first half rotor blade shaft and the second half rotor blade shaft. The length to the end in the direction perpendicular to the semi-rotary blade rotation axis is longer than the length from the first semi-rotary blade rotation shaft and the second semi-rotary blade rotation axis to the fixed shaft,
The first planetary gear and the second half-rotating blade are rotated by the rotation of the first half-rotating blade and the second half-rotating blade by the force of the fluid received by the first half-rotating blade and the second half-rotating blade. Rotate the planetary gear of 2 and rotate the wing swivel gear,
The output gear is rotated by the rotation of the blade turning gear and the energy conversion device generates power;
It is characterized by that.

The number of teeth of each of the first planetary gear and the second planetary gear is twice the number of teeth of the fixed shaft gear,
When the first planetary gear and the second planetary gear each make one round turn around the fixed shaft, the first half-rotating blade and the second half-rotating blade may each rotate by half rotation. preferable.

  Moreover, it is preferable that the first semi-rotary blade rotating shaft, the second semi-rotating blade rotating shaft, and the fixed shaft are arranged on the same plane.

  Moreover, it is preferable that the angle which the said 1st half rotary blade and the said 2nd half rotary blade make is a right angle.

  In addition, the first half-rotating blade and the second half-rotating blade are blades for guiding fluid to axial ends of the first half-rotating blade rotating shaft and the second half-rotating blade rotating shaft, respectively. It is preferable to provide an end plate.

  In addition, it is preferable to include an introduction member that changes the flow of the fluid and guides the fluid to the first half rotor and the second half rotor.

  In the power generation device according to the present invention, the length in the vertical direction from the end of the half rotor blade to the half rotor blade rotation axis is longer than the length from the half rotor blade rotation axis to the fixed shaft. Since the ratio of the area occupied by the semi-rotary blade in the pressure receiving area of the fluid of the power generation device is high, the rotation efficiency is high.

It is a perspective view of the power generator concerning an embodiment of the invention. FIG. 2 is an internal structure diagram showing an internal structure of the power generator by cutting the case along the line A-A ′ of FIG. 1. It is A-A 'sectional drawing of FIG. FIG. 3 is a state diagram showing an arrangement relationship among a half rotary blade, a half rotary blade rotary shaft, a planetary gear, an idle gear, and a fixed shaft when viewed in the B-B ′ direction in FIG. 2. (A) And (B) is a state figure which shows the motion of a half rotary blade, a half rotary blade rotating shaft, a planetary gear, and an idle gear when it receives the effect | action of a fluid. (A) And (B) is a state figure which shows the motion of a half rotary blade, a half rotary blade rotating shaft, a planetary gear, and an idle gear when it receives the effect | action of a fluid. It is a state figure which shows the motion of a half rotary blade, a half rotary blade rotating shaft, a planetary gear, and an idle gear when receiving the action of fluid. It is a schematic diagram which shows the outer periphery locus | trajectory of a half rotary blade, and the locus | trajectory of a half rotary blade rotating shaft. It is a perspective view of the electric power generating apparatus which concerns on other embodiment. FIG. 10 is a cross-sectional view taken along the line C-C ′ of FIG. 9, illustrating a flow of fluid. It is a state figure which shows the arrangement | positioning relationship of the half rotary blade of the electric power generating apparatus which concerns on other embodiment, a half rotary blade rotary shaft, a planetary gear, an idle gear, and a fixed shaft.

  The power generation apparatus according to the present embodiment will be described with reference to the drawings. As shown in FIGS. 1 to 3, the power generation device 1 includes a fixed shaft 20 having a fixed shaft gear 21 on the circumferential surface, and half-rotating blades 30 a and 30 b, which are installed in a case 10. Half-rotary blade rotating shafts 32a and 32b to which gears 31a and 31b are respectively fixed, blade rotating gear 40, idle gears 50a and 50b connecting fixed shaft gear 21 and planetary gears 31a and 31b, respectively, and output gear An output shaft 61 to which 60 is fixed and an energy conversion device 70 are included. The power generation device 1 is a device that recovers energy or the like due to the flow of water in a river and converts it into electrical energy.

  The case 10 is a base on which each element described below is installed, and can be attached to various places where fluid flows, such as a drainage channel and a pier.

  The case 10 is substantially U-shaped in cross-sectional view, and a fixed shaft 20 is fixed to a part thereof. The fixed shaft 20 protruding inward of the case 10 from the side plate of the case 10 has a fixed shaft gear 21 disposed on the side plate side of the case 10, and the inside of the case 10 is a sliding surface having no irregularities.

  The half rotor blades 30a and 30b are rectangular flat plates, and the dimensions thereof are the same. Cylindrical half-rotating blade rotating shafts 32a and 32b are fixed to the central portions of the half-rotating blades 30a and 30b, respectively. The shape of the half rotor blades 30a and 30b is not limited to a rectangular flat plate.

  A planetary gear 31a and a blade turning gear 40 are arranged in this order from the end side at the end of the half-rotating blade rotating shaft 32a protruding from the half-rotating blade 30a. The half rotary blade rotating shaft 32a and the planetary gear 31a are fixed by a fixing member (not shown) or the like. Therefore, the half rotor blade 30a, the planetary gear 31a, and the half rotor blade rotation shaft 32a are integrated. Further, the half-rotating blade rotating shaft 32 a and the blade turning gear 40 are connected via a sliding bearing 42 a provided on the blade turning gear 40, and the half-rotating blade rotating shaft 32 a is connected to the blade turning gear 40. The shaft is slidably supported.

  Similarly to the half rotary blade rotary shaft 32a, the half rotary blade rotary shaft 32b is also provided with a planetary gear 31b and a blade turning gear 40b in this order from the end side. The half rotary blade rotating shaft 32b and the planetary gear 31b are fixed by a fixing member (not shown) or the like. Therefore, the half rotor blade 30b, the planetary gear 31b, and the half rotor blade rotating shaft 32b are integrated. The half-rotating blade rotating shaft 32b and the blade-turning gear 40 are connected to each other via a sliding bearing 42b provided on the blade-turning gear 40. The half-rotating blade rotating shaft 32b is connected to the blade-turning gear 40. The shaft is slidably supported.

  The two planetary gears 31a and 31b have the same structure. The number of teeth of the planetary gears 31 a and 31 b is twice the number of teeth of the fixed shaft gear 21 formed on the fixed shaft 20.

  The blade turning gear 40 is a disc-like gear having a circular hole formed at the center, and the sliding surface of the fixed shaft 20 is inserted into the hole. The blade turning gear 40 and the fixed shaft 20 are slidably disposed via a bearing 41, and the blade turning gear 40 is rotatable about the fixed shaft 20.

  The blade turning gear 40 is provided with idle gear rotation shafts 51a and 51b, and idle gear gears 50a and 50b are slidably installed on the idle gear rotation shafts 51a and 51b, respectively. The idle gears 50a and 50b have the same structure, and connect the fixed shaft gear 21 and the planetary gears 31a and 31b, respectively. Since the idle gear rotating shafts 51a and 51b and the blade turning gear 40 are connected and the positional relationship thereof does not change, the idle gear rotating shafts 51a and 51b are respectively fixed to the fixed shaft 20 in synchronization with the rotation of the blade turning gear 40. Turn around. The idle gears 50a and 50b are also called idle gears and have a function of adjusting the amount of rotation (rotation angle) of the planetary gears 31a and 31b. That is, since the number of teeth of the planetary gears 31a and 31b is set to be twice the number of teeth of the fixed shaft gear 21, the planetary gears 31a and 31b rotate around the fixed shaft 20 (360 °) as described later. In this case, the planetary gears 31a and 31b have a function of adjusting so as to rotate by half rotation (180 °).

  Further, the output gear 60 is arranged so as to mesh with the blade turning gear 40. An output shaft 61 is fixed at the center of the output gear 60.

  The end of the output shaft 61 protrudes from the side plate of the case 10 and is connected to the energy conversion device 70. The energy conversion device 70 is a device that combines a magnet, a coil, and the like to generate power by the action of magnetic force.

  FIG. 4 shows half-rotating blades 30a and 30b, half-rotating blade rotating shafts 32a and 32b, planetary gears 31a and 31b, fixed shaft 20, fixed shaft gear 21, and idle gear as seen in the BB ′ direction in FIG. The arrangement | positioning relationship of 50a, 50b is shown. Thus, when viewed from the direction of each axis, the semi-rotary blade rotation shafts 32 a and 32 b are arranged to face each other with the fixed shaft 20 as the center. In other words, the half rotor blade rotation shaft 32a, the fixed shaft 20, and the half rotor blade rotation shaft 32b are arranged on the same straight line. For this reason, the half rotary blade 30 a and the half rotary blade 30 b are also arranged on the same straight line with the fixed shaft 20 as the center. More specifically, the half rotary blade rotating shaft 32a, the fixed shaft 20 and the half rotary blade rotating shaft 32b are located on the same plane. The angle formed by the half rotary blade 30a and the half rotary blade 30b is substantially a right angle. This angle is maintained even during operation, as will be described later.

  The semi-rotary blades 30a and 30b have lengths from the semi-rotary blade rotation shafts 32a and 32b to the end portions (end portions of the semi-rotary blades 30a and 30b in a direction perpendicular to the respective semi-rotary blade rotation shafts 32a and 32b L1 is the length from the semi-rotary blade rotation shafts 32a, 32b to the fixed shaft 20 (the distance between the shafts from the respective semi-rotary blade rotation shafts 32a, 32b to the central axis of the fixed shaft 20 in the vertical direction) Length) longer than L2.

  Then, with reference to FIGS. 5-7, the effect | action of the electric power generating apparatus 1 is demonstrated. 5 to 7, revolutions of the respective gears and the like are indicated by solid line arrows and rotations are indicated by broken line arrows.

  First, in the state of FIG. 5A, when a fluid flow is received in the left direction on the paper surface, a flow force F mainly acts on the semi-rotary blade 30a. In response to this flow force F, the semi-rotary blade 30a is pushed leftward in the drawing.

  Then, as shown in FIG. 5 (B), the planetary gear 31a is fixed to the half rotary blade rotating shaft 32a to which the half rotary blade 30a is fixed, and the blade turning gear 40 is slidably connected. Therefore, the half rotor blade 30a rotates clockwise in the drawing. Further, since the planetary gear 31a is connected to the fixed shaft gear 21 via the idle gear 50a, it rotates (revolves) around the fixed shaft 20 while rotating clockwise in the drawing. Further, the blade swivel gear 40 also rotates in the clockwise direction in the drawing with the fixed shaft 20 as a fulcrum.

  Since the half-rotating blade rotating shaft 32b is also connected to the blade turning gear 40 in the same manner, the half-rotating blade 30b and the planetary gear 31b move in the same manner as described above as the blade turning gear 40 rotates.

  When the above rotation proceeds, as shown in FIGS. 6A and 6B, the semi-rotary blade 30b is positioned on the upstream side of the flow. Then, the flow force F mainly acts on the half rotor blade 30b. Then, rotation continues in the same manner as described above.

  Then, as shown in FIG. 7, when the blade turning gear 40 rotates by half rotation (180 °), the two half-rotating blades 30a and 30b are just switched from the state shown in FIG. 5A. . The half rotor blades 30a and 30b are each rotated 90 °. The number of teeth of the planetary gears 31a and 31b is set to be twice the number of teeth of the fixed shaft gear 21, and the rotation angle of the planetary gears 31a and 31b by the idle gears 50a and 50b is restricted, so that As described above, when the half-rotating blades 30a and 30b are rotated half-turn (180 °) about the fixed shaft 20, the half-rotating blades 30a and 30b rotate 90 °.

  Therefore, when the blade turning gear 40 rotates once (360 °), the half-rotating blades 30a and 30b return to the arrangement shown in FIG. As described above, when the blade turning gear 40 rotates once (360 °), the half-rotating blades 30a and 30b rotate half-turn (180 °).

  In this way, the half-rotating blades 30a and 30b, the half-rotating blade rotating shafts 32a and 32b, the planetary gears 31a and 31b, and the blade turning gear 40 continue to move while receiving the flow of fluid. .

  As described above, since the blade turning gear 40 rotates, the output gear 60 engaged therewith also rotates. As the output gear 60 rotates, the output shaft 61 also rotates.

  The energy conversion device 70 connected to the output shaft 61 converts the rotational energy of the output shaft 61 into electric energy and generates electric power.

  FIG. 8 schematically shows the outer locus of the half rotor blades 30a and 30b and the locus of the semi rotor blades 32a and 32b. Since the number of teeth of the planetary gears 31a and 31b is twice the number of teeth of the fixed shaft gear 21, the two half-rotating blades 30a and 30b each rotate around the fixed shaft 20 by half rotation and rotate. Since the two half-rotating blades 30a and 30b rotate while maintaining the angle formed between the two surfaces at right angles, the occupied space required for the movement of the half-rotating blade rotating shafts 32a and 32b is small. In addition, since the three dimensions of the power generator 1 can be designed to be about 1.5 times the width and length of the half rotor blades 30a and 30b, the power generator 1 is smaller than the fluid pressure receiving area. Can be realized.

  Further, as shown in FIG. 4, the vertical length L1 from the end of the half rotor blades 30a, 30b to the half rotor blade rotation shafts 32a, 32b is from the half rotor blade rotation shafts 32a, 32b to the fixed shaft 20. Therefore, the ratio of the area occupied by the half rotor blades 30a, 30b is high in the pressure receiving area of the fluid acting on the power generation device 1, and the rotating half rotor blade rotating shaft 32a, The rotational center of 32b is theoretically the rotational core of the semi-rotary blades 30a and 30b, so that the rotational efficiency is high. For this reason, the electric power generating apparatus 1 which exhibits favorable electric power generation capability is implement | achieved.

  As described above, since the power generation device 1 is small and has a high rotational efficiency, the power generation device 1 can be installed in a place where various fluid flows exist to generate power. For example, it is installed in a channel where factory drainage flows, generates electricity, installs in a culvert or irrigation channel, etc., generates electricity by installing on a river pier or quay, etc. It is possible to supply power to the street light.

  Moreover, you may install the electric power generating apparatus 1 in the location with the flow of gas etc. other than the installation to the location with the flow of liquids, such as water. For example, the exhaust duct of a factory, the location where waste steam is spouting, etc. are mentioned.

  Moreover, since the electric power generating apparatus 1 can be set small, there exists an advantage that a freedom degree is also high about the aspect of installation. For this reason, it is also easy to install a plurality of power generators 1 at locations where fluid flows. In the case where a plurality of power generation devices 1 are installed in narrow flow paths with fluid flow, a large number of power generation devices 1 can be installed in series in the fluid flow direction. Moreover, when installing in a wide flow path etc., you may install so that a flow may be crossed.

  Further, the power generator 1 may be installed so that the half-rotating blade rotating shafts 32a, 32b are horizontal, or may be used by installing the semi-rotating blade rotating shafts 32a, 32b vertically.

  In particular, in a river or the like, by installing the power generation device 1 so that each gear or the like faces upward, the gear or the like can be installed without being immersed in river water. Therefore, maintenance of the power generator 1 such as lubrication of each gear can be easily performed.

  Further, as shown in FIG. 9, the half rotor blades 30a and 30b may have a shape in which ends perpendicular to the half rotor blade rotation axes 32a and 32b are curved. The semi-rotary blades 30a and 30b can easily receive the force of a fluid such as water, and the rotation efficiency can be improved.

  Furthermore, as shown in FIG. 9, the semi-rotary blades 30a and 30b may have blade end plates 33a and 33b. The blade end plates 33a and 33b are disposed at the end portions in the direction of the semi-rotary blade rotation shafts 32a and 32b. When the power generation apparatus 1 is installed in a river with the gears and the like facing upward and the lower portion of the case 10 is not disposed, fluid such as water passes under the half-rotating blades 30a and 30b and enters the half-rotating blades 30a and 30b. Although it is difficult to apply the force of the fluid, by providing the blade end plates 33a and 33b as described above, the fluid is easily guided to the half-rotating blades 30a and 30b, and the rotation efficiency can be improved.

  Furthermore, as illustrated in FIG. 9, the power generation device 1 may include a fluid introduction member 11. In the present embodiment, the fluid introduction member 11 is installed so as to project outward from the case 10. As shown in FIG. 10, a fluid such as water is likely to go to the semi-rotary blades 30 a and 30 b, and more fluid energy can be obtained.

  Further, the idle gears 50a and 50b connecting the fixed shaft gear 21 and the blade turning gears 31a and 31b are not limited in the size of the gear and the number of teeth. For example, as shown in FIG. 11, it may be an idle gear 50a having a large diameter, and the fixed shaft gear 21, the idle gear 50a and the planetary gear 31a may be arranged in a polygonal line instead of being arranged in a straight line. Further, an odd number of idle gears, for example, three idle gears 50b, 50c, 50d may be arranged in series.

DESCRIPTION OF SYMBOLS 1 Power generator 10 Case 11 Fluid introduction member 20 Fixed shaft 21 Fixed shaft gear 30a, 30b Half rotary blade 31a, 31b Planetary gear 32a, 32b Half rotary blade rotating shaft 33a, 33b Blade end plate 40a, 40b Blade turning gear 41 Bearing 42a, 42b Sliding bearings 50a-50d idle gears 51a, 51b idle gear rotating shaft 60 output gear 61 output shaft 70 energy conversion device

Claims (5)

A fixed shaft having a fixed shaft gear on the peripheral surface;
A first planetary gear and a second planetary gear, each connected to the fixed shaft gear via an idler gear and swiveling around the fixed shaft;
A first semi-rotary blade rotating shaft fixed to the first planetary gear;
A second semi-rotary blade rotating shaft fixed to the second planetary gear;
A first half rotor and a second half rotor fixed respectively to the first half rotor blade and the second half rotor blade;
A blade turning gear that is slidably connected to each of the first half-rotating blade rotating shaft and the second half-rotating blade rotating shaft, and rotates about the fixed shaft;
An output gear capable of rotating by directly or indirectly meshing with the wing turning gear;
An energy conversion device that generates electric power by rotation of the output gear,
The number of teeth of each of the first planetary gear and the second planetary gear is twice the number of teeth of the fixed shaft gear;
When the first planetary gear and the second planetary gear each make one turn around the fixed shaft, the first half-rotating blade and the second half-rotating blade each rotate half-rotation,
The first half rotor blade and the second half rotor blade are respectively connected to the first half rotor blade shaft and the second half rotor blade shaft from the first half rotor blade shaft and the second half rotor blade shaft. The length to the end in the direction perpendicular to the semi-rotary blade rotation axis is longer than the length from the first semi-rotary blade rotation shaft and the second semi-rotary blade rotation axis to the fixed shaft,
The first planetary gear and the second half-rotating blade are rotated by the rotation of the first half-rotating blade and the second half-rotating blade by the force of the fluid received by the first half-rotating blade and the second half-rotating blade. Rotate the planetary gear of 2 and rotate the wing swivel gear,
The output gear is rotated by the rotation of the blade turning gear and the energy conversion device generates power;
A power generator characterized by that. The first half rotor blade rotation shaft, the second half rotor blade rotation shaft, and the fixed shaft are arranged on the same plane;
The power generator according to claim 1. An angle formed by the first half rotor blade and the second half rotor blade is a right angle;
Generator according to claim 1 or 2, characterized in that. The first half rotor blade and the second half rotor blade are blade end plates for guiding fluid to axial ends of the first half rotor blade shaft and the second half rotor blade shaft, respectively. Comprising
Power generator according to any one of claims 1 to 3, characterized in that. An introduction member that changes the flow of fluid and leads to the first half rotor and the second half rotor;
The power generator according to any one of claims 1 to 4 , wherein the power generator is provided.

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