JP3746759B2 - Fluid power generator - Google Patents

Fluid power generator Download PDF

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JP3746759B2
JP3746759B2 JP2002344390A JP2002344390A JP3746759B2 JP 3746759 B2 JP3746759 B2 JP 3746759B2 JP 2002344390 A JP2002344390 A JP 2002344390A JP 2002344390 A JP2002344390 A JP 2002344390A JP 3746759 B2 JP3746759 B2 JP 3746759B2
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gear
shaft
rotating body
generator
output shaft
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JP2004176635A (en
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光 田中
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光 田中
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Wind Motors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Hydraulic Turbines (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、風力や水力等の流体力の運動エネルギーを動力源として、回転体を回転させ、この回転力によって発電機を駆動して発電を行なう流体力発電装置に関する。
【０００２】
【従来の技術】
従来、流体力発電装置としては、例えば、特許文献１（特開２００２−１４７３３８号公報）に掲載された、風力による発電装置が知られている。
この流体力発電装置は、図７に示すように、流体としての風力によって回転させられる複数の羽根２を有した回転体１と、スタンド３に設置され回転体１の出力を増速する増速機構４と、スタンド３に設置され増速機構４の出力により発電を行なう発電機５とを備えている。
【０００３】
【特許文献１】
特開２００２−１４７３３８号公報
【０００４】
【発明が解決しようとする課題】
ところで、このような従来の流体力発電装置の原理のものを、例えば、水路などで水力用に使用する場合には、水路の水の流れをよく受け止めるために羽根部分をある程度大きくし、増速機構４及び発電機５を水路脇の陸部分に設置して用いるようにする。
【０００５】
ところが、水路脇の陸部分には、増速機構４及び発電機５の２つの機械が設置されることになるので、それだけ、陸部分の設置スペースが大きくなり、陸部分の設置面積に制約がある場合には、実質的に設置ができなかったり、設置ができたとしても、邪魔になってしまうなどの支障が生じるという問題があった。
【０００６】
本発明は上記の問題点に鑑みて為されたもので、回転体以外の部分の大きさを小さくできるようにし、この回転体以外の部分の設置スペースを減少させ、設置条件の制約の軽減を図った流体力発電装置を提供することを目的とする。
【０００７】
【課題を解決するための手段】
このような目的を達成するための本発明の流体力発電装置は、流体によって回転させられる回転体と、該回転体の出力を増速する増速機構と、該増速機構の出力により発電を行なう発電機とを備えた流体力発電装置において、
上記発電機を上記回転体の内部に搭載した構成としている。
【０００８】
これにより、発電機を本体内部に設けているので、回転体以外の部分の大きさを小さくでき、この回転体以外の部分の小型化が可能となり、それだけ、回転体以外の部分の設置スペースを減少させ、設置条件の制約の軽減を図ることができる。
【０００９】
また、必要に応じ、上記回転体を中空状の空間を有した本体と、該本体の外側に設けられる複数の羽根と、上記本体の中心軸を軸心として本体に突設される管状の回転軸を備えて構成し、
上記増速機構を、上記回転軸に対して相対回転可能に挿通される出力軸と、上記回転軸及び回転軸間に設けられ出力軸の回転数を増加させるとともに該出力軸を回転軸に対して逆回転させるギヤ列機構とを備えて構成し、上記発電機を上記出力軸が回転源となる上記回転体の空間に収納して該回転体に固定して構成している。ギヤ列機構を用いるので、回転体内部に設けられる発電機を、確実に作動させることができる。
【００１０】
更にまた、必要に応じ、上記本体の軸方向一端に上記回転軸を設け、該回転軸を機台に設けた支持体に軸支する一方、上記本体の軸方向他端に中心軸を軸心とし、機台に固定された支持軸に軸支される軸受け部を形成し、該支持軸に上記発電機で生成された電気を送電する配線を設けて構成している。回転体内部にある発電機からの電力の取り出しを、容易かつ確実に行なうことができる。
【００１１】
【発明の実施の形態】
以下、添付図面に基づいて、本発明の実施の形態に係る流体力発電装置について詳細に説明する。この実施の形態に係る流体力発電装置は、水路Ｓに設けられる水力用の装置である。
【００１２】
図１に示すように、この流体力発電装置の基本的構成は、機台１０と、流体によって回転させられる回転体２０と、回転体２０の出力を増速する増速機構３０と、増速機構３０の出力により発電を行なう発電機５０とを備えてなる。
【００１３】
機台１０は、水路の両側に、一対設けられている。機台１０の上には上記回転体２０を支持する支持体１１がそれぞれ設けられている。一方の機台１０に設けられた支持体１１（Ａ）は、中空状のケース１２であり、増速機構３０が収納されている。
【００１４】
図１及び図２に示すように、回転体２０は、中空状の空間２２を有した円柱状の本体２１と、本体２１の外側に設けられる複数の羽根２３と、本体２１の中心軸Ｐを軸心として本体２１に突設される管状の回転軸２４を備えている。回転軸２４は、本体２１の軸方向一端に設けられており、一方の機台１０に設けた一方の支持体１１（Ａ）に軸受け１３を介して軸支されている。また、本体２１の軸方向他端には、本体２１の中心軸Ｐを軸心とする軸受け部２５が設けられており、この軸受け部２５には、支持軸２６が軸支されている。支持軸２６は、他方の機台１０に設けられた他方の支持体１１（Ｂ）に固定されている。
【００１５】
増速機構３０は、回転軸２４に対して相対回転可能に挿通される出力軸３１と、回転軸２４及び出力軸３１間に設けられ、出力軸３１の回転数を増加させるとともに出力軸３１を回転軸２４に対して逆回転させるギヤ列機構３２とを備えている。
ギヤ列機構３２は、図２及び図３に示すように、回転軸２４の端部に設けられる第１ギヤ３３と、第１ギヤ３３と噛合される第２ギヤ３４と、第１中間軸３５を介して第２ギヤ３４と連動する第３ギヤ３６と、第３ギヤ３６に噛合される第４ギヤ３７と、第２中間軸３８を介して第４ギヤ３７と連動する第５ギヤ３９と、第５ギヤ３９に噛合し、出力軸３１の端部に設けられる第６ギヤ４０によって構成されている。また、各ギヤの歯数は、第１ギヤ３３＞第２ギヤ３４，第３ギヤ３６＞第４ギヤ３７，第５ギヤ３９＞第６ギヤ４０になるように定められている。
【００１６】
第１中間軸３５の両端，第２中間軸３８の両端及び出力軸３１の一端は、軸受け４１を介してケース１２の内側に固定され、回転自在に設けられている。また、出力軸３１はケース１２の内側に固定されていない他端が発電機５０に接続され、出力軸３１が回転すると発電機５０を作動させる。更に、出力軸３１は、管状の回転軸２４の内部を通り、回転軸２４の内側に設けられる軸受け４２によって軸心が同軸になるように固定され、回転軸２４と出力軸３１との相対回転を可能にしている。
【００１７】
発電機５０は、出力軸３１が回転源となるように回転体２０の空間２２に収納され、回転体２０に固定具５１を介して固定されている。
【００１８】
また、支持軸２６には、発電機５０で生成された電気を送電する配線５９が設けられている。詳しくは、支持軸２６は、管状の電流が流れる外管５２と、その内部に設けられ、外管５２と反対の極性の電流が流れる棒体５３と、外管５２と棒体５３とを十分に絶縁させる絶縁体５４とを備えている。また、回転体２０の内側に固定される一対のブラシ５５ａ，５５ｂが、外管５２及び棒体５３に夫々摺接するように設けられている。そして、発電機５０から延び、発電機５０で発電された電圧を送り、互いに逆の極性の電流が流れる一対の電線５６のいずれか一方がブラシ５５ａに接続され、他方がブラシ５５ｂに接続されている。符号５７は支持軸２６の保護管、５８は外管５２及び棒体５３に接続された出力用の電線である。
【００１９】
従って、この流体力発電装置を水路Ｓに設置するときは、図４および図５に示すように、羽根２３部分を水路へ設け、機台１０，１０を水路脇の陸部分に設置して用いるようにする。
この場合、発電機５０が回転体２０の本体２１内部に設けられているので、回転体２０以外の部分の大きさが小さくなっており、そのため、陸上部分の設置スペースを減少させることができ、設置条件の制約の軽減が図られる。
【００２０】
また、この流体力発電装置を用いて発電させる時は、水力の運動エネルギーを羽根２３に受け、回転体２０を回転させる。回転体２０が回転すると、回転軸２４の端部に設けられる第１ギヤ３３が回転を始め、これに噛合する第２ギヤ３４が回転し、第２ギヤ３４に連動する第３ギヤ３６が回転し、第３ギヤ３６に噛合する第４ギヤ３７が回転し、第４ギヤ３７と連動する第５ギヤ３９が回転し、第５ギヤ３９に噛合する第６ギヤ４０が回転し、第６ギヤ４０の軸心に設けられる出力軸３１が回転する。
【００２１】
出力軸３１の回転によって、出力軸３１が接続される発電機５０が作動する。発電機５０で発電された電流は、各電線５６，ブラシ５５ａ，５５ｂから支持軸２６の外管５２及び棒体５３を通り、電線５８を介して回転体２０の外部へ送られる。
この際、ギヤ列機構３２の各ギヤの歯数を上記の条件で異ならせたので、出力軸３１は、各ギヤに設けられる歯数の比の分だけ増速させられる。また、発電機５０自体も回転体２０と同方向に回転し、出力軸３１に対して逆回転するので、この分、出力軸３１は発電機５０に対して相対的に増速させられる。これにより、回転体２０の回転がある程度低速であっても発電が円滑に行なわれる。
【００２２】
尚、上記実施の形態では、本装置を水路Ｓに設ける場合で説明したが、必ずしもこれに限定されるものではなく、図４及び図６に示すように、川Ｒに一対のフロートＦを係留し、このフロートＦ間に本装置を設けても良い。この場合、フロートＦ上に機台１０を設置するが、機台１０は回転体２０に比較して小さいので、設置が容易になる。また、回転体２０の長さや大きさを自由に変えて出力を調整することができ、極めて汎用性が良くなる。
【００２３】
【発明の効果】
以上説明したように、本発明の流体力発電装置によれば、発電機を回転体に搭載したので、回転体以外の部分の大きさを小さくすることができるようになり、そのため、この回転体以外の部分の設置スペースを減少させ、設置条件の制約の軽減を図ることができる。
【００２４】
また、回転体を中空状の空間を有した本体と、本体の外側に設けられる複数の羽根と、本体の中心軸を軸心として本体に突設される管状の回転軸を備えて構成し、増速機構を、回転軸に対して相対回転可能に挿通される出力軸と、回転軸及び回転軸間に設けられ出力軸の回転数を増加させるとともに出力軸を回転軸に対して逆回転させるギヤ列機構とを備えて構成し、発電機を出力軸が回転源となる回転体の空間に収納して回転体に固定した場合には、ギヤ列機構を用いるので、回転体内部に設けられる発電機を、確実に作動させることができる。
【００２５】
更に、本体の軸方向一端に回転軸を設け、回転軸を機台に設けた支持体に軸支する一方、本体の軸方向他端に中心軸を軸心とし、機台に固定された支持軸に軸支される軸受け部を形成し、支持軸に発電機で生成された電気を送電する配線を設けた場合には、回転体内部にある発電機からの電力の取り出しを、容易かつ確実に行なうことができる。
【図面の簡単な説明】
【図１】本発明の実施の形態に係る流体力発電装置を示す側面断面図である。
【図２】本発明の実施の形態に係る流体力発電装置の増速機構においてギヤ列機構を展開して示す拡大側面断面図である。
【図３】本発明の実施の形態に係る流体力発電装置の増速機構においてギヤ列機構を示す正面図である。
【図４】本発明の実施の形態に係る流体力発電装置の設置例を示す図である。
【図５】図４中、本発明の実施の形態に係る流体力発電装置を水路に設置した場合の拡大斜視図である。
【図６】図４中、本発明の実施の形態に係る流体力発電装置を川に設置した場合の拡大斜視図である。
【図７】従来の流体力発電装置の一例を示す模式図である。
【符号の説明】
１０ 機台
１１ 支持体
１２ ケース
２０ 回転体
２１ 本体
２２ 空間
２３ 羽根
２４ 回転軸
２５ 軸受け部
２６ 支持軸
３０ 増速機構
３１ 出力軸
３２ ギヤ列機構
３３ 第１ギヤ
３４ 第２ギヤ
３５ 第１中間軸
３６ 第３ギヤ
３７ 第４ギヤ
３８ 第２中間軸
３９ 第５ギヤ
４０ 第６ギヤ
５０ 発電機
５１ 固定具
５２ 外管
５３ 棒体
５４ 絶縁体
５５ａ ブラシ
５５ｂ ブラシ
５６ 電線
５７ 保護管
５８ 電線
５９ 配線
Ｓ 水路
Ｒ 川
Ｆ フロート[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hydrodynamic power generation apparatus that uses a kinetic energy of fluid force such as wind power or hydraulic power as a power source to rotate a rotating body and drive a generator by this rotational force to generate electric power.
[0002]
[Prior art]
Conventionally, as a hydrodynamic power generation device, for example, a power generation device using wind power disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2002-147338) is known.
As shown in FIG. 7, the hydroelectric power generation apparatus includes a rotating body 1 having a plurality of blades 2 that are rotated by wind power as a fluid, and a speed increasing unit that is installed on a stand 3 and increases the output of the rotating body 1. A mechanism 4 and a generator 5 installed on the stand 3 and generating electric power by the output of the speed increasing mechanism 4 are provided.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-147338
[Problems to be solved by the invention]
By the way, in the case of using the principle of such a conventional hydroelectric power generation device for hydraulic power in a water channel or the like, for example, the blade portion is enlarged to a certain extent in order to receive the water flow in the water channel. The mechanism 4 and the generator 5 are installed and used on the land part beside the waterway.
[0005]
However, since the speed increasing mechanism 4 and the generator 5 are installed on the land part beside the waterway, the installation space for the land part increases accordingly, and the installation area of the land part is limited. In some cases, there was a problem that the installation could not be performed substantially, or even if it could be installed, there would be troubles such as getting in the way.
[0006]
The present invention has been made in view of the above-mentioned problems, and allows the size of the portion other than the rotating body to be reduced, reduces the installation space of the portion other than the rotating body, and reduces the restrictions on the installation conditions. It is an object of the present invention to provide a fluid power generator.
[0007]
[Means for Solving the Problems]
In order to achieve such an object, the hydrodynamic power generation device of the present invention includes a rotating body that is rotated by a fluid, a speed increasing mechanism that increases the output of the rotating body, and power generation by the output of the speed increasing mechanism. In a hydrodynamic power generation device with a generator to perform,
The generator is mounted inside the rotating body.
[0008]
As a result, since the generator is provided inside the main body, the size of the part other than the rotating body can be reduced, and the part other than the rotating body can be miniaturized. It is possible to reduce the restriction of installation conditions.
[0009]
Further, if necessary, the rotating body is a main body having a hollow space, a plurality of blades provided outside the main body, and a tubular rotation projecting from the main body with the central axis of the main body as an axis. Comprising a shaft,
The speed increasing mechanism includes an output shaft that is inserted so as to be rotatable relative to the rotation shaft, and the rotation speed of the output shaft that is provided between the rotation shaft and the rotation shaft is increased and the output shaft is connected to the rotation shaft. The generator is housed in the space of the rotating body whose output shaft serves as a rotation source and fixed to the rotating body. Since the gear train mechanism is used, the generator provided inside the rotating body can be reliably operated.
[0010]
Furthermore, if necessary, the rotation shaft is provided at one end in the axial direction of the main body, and the rotation shaft is supported on a support provided on the machine base, while the central axis is centered on the other axial end of the main body. A bearing portion supported by a support shaft fixed to the machine base is formed, and wiring for transmitting electricity generated by the generator is provided on the support shaft. It is possible to easily and reliably take out the electric power from the generator inside the rotating body.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, based on an accompanying drawing, a fluid power generator concerning an embodiment of the invention is explained in detail. The hydroelectric power generation device according to this embodiment is a hydropower device provided in the water channel S.
[0012]
As shown in FIG. 1, the basic configuration of the hydroelectric power generation apparatus includes a machine base 10, a rotating body 20 that is rotated by a fluid, a speed increasing mechanism 30 that increases the output of the rotating body 20, and a speed increasing speed. And a generator 50 that generates electric power according to the output of the mechanism 30.
[0013]
A pair of machine bases 10 are provided on both sides of the water channel. Support bodies 11 that support the rotating body 20 are provided on the machine base 10. A support 11 (A) provided on one machine base 10 is a hollow case 12 in which a speed increasing mechanism 30 is accommodated.
[0014]
As shown in FIGS. 1 and 2, the rotating body 20 includes a cylindrical main body 21 having a hollow space 22, a plurality of blades 23 provided outside the main body 21, and a central axis P of the main body 21. A tubular rotary shaft 24 protruding from the main body 21 is provided as an axis. The rotary shaft 24 is provided at one end in the axial direction of the main body 21, and is supported on one support 11 (A) provided on one machine base 10 via a bearing 13. Further, a bearing portion 25 having a central axis P of the main body 21 as an axis center is provided at the other axial end of the main body 21, and a support shaft 26 is pivotally supported on the bearing portion 25. The support shaft 26 is fixed to the other support 11 (B) provided on the other machine base 10.
[0015]
The speed increasing mechanism 30 is provided between an output shaft 31 that is inserted so as to be rotatable relative to the rotation shaft 24, and between the rotation shaft 24 and the output shaft 31, and increases the number of rotations of the output shaft 31 and the output shaft 31. A gear train mechanism 32 that rotates in the reverse direction with respect to the rotary shaft 24 is provided.
As shown in FIGS. 2 and 3, the gear train mechanism 32 includes a first gear 33 provided at an end of the rotary shaft 24, a second gear 34 meshed with the first gear 33, and a first intermediate shaft 35. A third gear 36 that interlocks with the second gear 34 via the fourth gear 37, a fourth gear 37 that meshes with the third gear 36, and a fifth gear 39 that interlocks with the fourth gear 37 via the second intermediate shaft 38. The sixth gear 40 is engaged with the fifth gear 39 and provided at the end of the output shaft 31. The number of teeth of each gear is determined such that the first gear 33> the second gear 34, the third gear 36> the fourth gear 37, the fifth gear 39> the sixth gear 40.
[0016]
Both ends of the first intermediate shaft 35, both ends of the second intermediate shaft 38, and one end of the output shaft 31 are fixed to the inside of the case 12 via bearings 41 and are rotatably provided. The other end of the output shaft 31 that is not fixed to the inside of the case 12 is connected to the generator 50, and the generator 50 is operated when the output shaft 31 rotates. Further, the output shaft 31 passes through the inside of the tubular rotation shaft 24 and is fixed so that the shaft center is coaxial with a bearing 42 provided inside the rotation shaft 24, and the relative rotation between the rotation shaft 24 and the output shaft 31 is performed. Is possible.
[0017]
The generator 50 is housed in the space 22 of the rotating body 20 so that the output shaft 31 serves as a rotation source, and is fixed to the rotating body 20 via a fixture 51.
[0018]
The support shaft 26 is provided with a wiring 59 for transmitting electricity generated by the generator 50. Specifically, the support shaft 26 is provided with an outer tube 52 through which a tubular current flows, a rod body 53 that is provided therein, and through which a current having a polarity opposite to that of the outer tube 52 flows, and the outer tube 52 and the rod body 53 sufficiently. And an insulator 54 to be insulated. Further, a pair of brushes 55 a and 55 b fixed to the inside of the rotating body 20 are provided so as to be in sliding contact with the outer tube 52 and the rod body 53, respectively. Then, one of the pair of electric wires 56 that extend from the generator 50 and send a voltage generated by the generator 50 and through which currents of opposite polarities flow is connected to the brush 55a, and the other is connected to the brush 55b. Yes. Reference numeral 57 denotes a protective tube for the support shaft 26, and 58 denotes an output electric wire connected to the outer tube 52 and the rod 53.
[0019]
Therefore, when installing this hydroelectric power generation apparatus in the water channel S, as shown in FIGS. 4 and 5, the blade 23 is provided in the water channel, and the machine bases 10 and 10 are installed in the land part beside the water channel. Like that.
In this case, since the generator 50 is provided inside the main body 21 of the rotating body 20, the size of the portion other than the rotating body 20 is reduced, so that the installation space of the land portion can be reduced, The restrictions on installation conditions can be reduced.
[0020]
Further, when power is generated using this fluid power generation device, the kinetic energy of hydraulic power is received by the blades 23 and the rotating body 20 is rotated. When the rotating body 20 rotates, the first gear 33 provided at the end of the rotating shaft 24 starts rotating, the second gear 34 meshing with the first gear 33 rotates, and the third gear 36 interlocked with the second gear 34 rotates. Then, the fourth gear 37 meshing with the third gear 36 rotates, the fifth gear 39 interlocked with the fourth gear 37 rotates, the sixth gear 40 meshing with the fifth gear 39 rotates, and the sixth gear The output shaft 31 provided at the 40 axial center rotates.
[0021]
The generator 50 to which the output shaft 31 is connected is activated by the rotation of the output shaft 31. The electric current generated by the generator 50 is sent from the electric wires 56 and the brushes 55 a and 55 b to the outside of the rotating body 20 through the electric wires 58 through the outer tube 52 and the rod body 53 of the support shaft 26.
At this time, since the number of teeth of each gear of the gear train mechanism 32 is varied under the above conditions, the output shaft 31 is increased in speed by the ratio of the number of teeth provided in each gear. Further, since the generator 50 itself rotates in the same direction as the rotating body 20 and reversely rotates with respect to the output shaft 31, the output shaft 31 is accelerated relative to the generator 50 accordingly. Thereby, even if rotation of the rotary body 20 is low to some extent, electric power generation is performed smoothly.
[0022]
In the above-described embodiment, the case where the present apparatus is provided in the water channel S has been described. However, the present invention is not necessarily limited to this, and a pair of floats F are moored in the river R as shown in FIGS. However, this apparatus may be provided between the floats F. In this case, although the machine base 10 is installed on the float F, since the machine base 10 is smaller than the rotating body 20, the installation becomes easy. Further, the output can be adjusted by freely changing the length and size of the rotator 20, and the versatility is extremely improved.
[0023]
【The invention's effect】
As described above, according to the hydrodynamic power generation device of the present invention, since the generator is mounted on the rotating body, the size of the portion other than the rotating body can be reduced. It is possible to reduce the installation space of other parts and reduce the restrictions on the installation conditions.
[0024]
Further, the rotating body comprises a main body having a hollow space, a plurality of blades provided outside the main body, and a tubular rotating shaft protruding from the main body with the central axis of the main body as an axis, The speed increasing mechanism is provided between an output shaft that is inserted so as to be relatively rotatable with respect to the rotation shaft, and the rotation speed of the output shaft is increased between the rotation shaft and the rotation shaft, and the output shaft is rotated reversely with respect to the rotation shaft. When the generator is housed in the space of the rotating body whose output shaft serves as a rotation source and fixed to the rotating body, the gear train mechanism is used, so the generator is provided inside the rotating body. The generator can be operated reliably.
[0025]
Furthermore, a rotating shaft is provided at one end of the main body in the axial direction, and the rotating shaft is supported by a support provided on the machine base, while the other end in the axial direction of the main body is centered on the center axis and is supported on the machine base. When the bearing part supported by the shaft is formed and the support shaft is provided with wiring to transmit electricity generated by the generator, it is easy and reliable to take out the power from the generator inside the rotating body. Can be done.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing a hydrodynamic power generation apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged side sectional view showing a gear train mechanism in a speed increasing mechanism of the hydrodynamic power generation device according to the embodiment of the present invention.
FIG. 3 is a front view showing a gear train mechanism in the speed increasing mechanism of the hydrodynamic power generation device according to the embodiment of the present invention.
FIG. 4 is a diagram showing an installation example of the hydroelectric power generation device according to the embodiment of the present invention.
FIG. 5 is an enlarged perspective view of the hydroelectric power generation apparatus according to the embodiment of the present invention installed in a water channel in FIG.
6 is an enlarged perspective view of the hydroelectric power generator according to the embodiment of the present invention installed in a river in FIG.
FIG. 7 is a schematic view showing an example of a conventional hydroelectric power generation apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Machine stand 11 Support body 12 Case 20 Rotating body 21 Main body 22 Space 23 Blade 24 Rotating shaft 25 Bearing portion 26 Support shaft 30 Speed increasing mechanism 31 Output shaft 32 Gear train mechanism 33 First gear 34 Second gear 35 First intermediate shaft 36 3rd gear 37 4th gear 38 2nd intermediate shaft 39 5th gear 40 6th gear 50 Generator 51 Fixture 52 Outer tube 53 Rod body 54 Insulator 55a Brush 55b Brush 56 Electric wire 57 Protective tube 58 Electric wire 59 Wiring S Channel R River F Float

Claims (2)

水路の流体によって回転させられる回転体と、該回転体の出力を増速する増速機構と、該増速機構の出力により発電を行なう発電機とを備えた流体力発電装置において、
上記発電機を上記回転体の内部に搭載し、
上記回転体を、中空状の空間を有し流体の外側に位置するように設けられる本体と、該本体の外側に設けられ流体内に入る複数の羽根と、上記本体の中心軸を軸心として本体に突設される管状の回転軸を備えて構成し、
上記増速機構を、上記回転軸に該回転軸に対して相対回転可能に挿通される出力軸と、上記回転軸及び出力軸間に設けられ該出力軸の回転数を増加させるとともに該出力軸を回転軸に対して逆回転させるギヤ列機構とを備えて構成し、
上記発電機を、上記出力軸が回転源となるように上記回転体の空間に収納して該回転体に固定し、
上記本体の軸方向一端に上記回転軸を設け、該回転軸を機台に設けた支持体に軸支して上記増速機を上記回転体の外に位置させる一方、上記本体の軸方向他端に中心軸を軸心とする軸受け部を設け、該軸受け部に機台に固定された支持軸を軸支し、該支持軸に上記発電機で生成された電気を送電する配線を設けたことを特徴とする流体力発電装置。 In a hydrodynamic power generation apparatus including a rotating body that is rotated by a fluid in a water channel, a speed increasing mechanism that speeds up the output of the rotating body, and a generator that generates power by the output of the speed increasing mechanism,
The generator is mounted inside the rotating body ,
The rotating body has a hollow space and is provided so as to be positioned outside the fluid, a plurality of blades provided outside the main body and entering the fluid, and the central axis of the body as an axis Constructed with a tubular rotating shaft protruding from the main body,
The speed increasing mechanism includes an output shaft that is inserted into the rotation shaft so as to be rotatable relative to the rotation shaft, and the rotation speed of the output shaft provided between the rotation shaft and the output shaft is increased and the output shaft And a gear train mechanism that reversely rotates the rotating shaft with respect to the rotating shaft,
The generator is housed in the space of the rotating body so that the output shaft serves as a rotation source, and fixed to the rotating body,
The rotating shaft is provided at one end in the axial direction of the main body, and the speed increasing device is positioned outside the rotating body by pivotally supporting the rotating shaft on a support provided on a machine base, while the axial direction of the main body is A bearing portion having a central axis as an axis is provided at the end, a support shaft fixed to the machine base is pivotally supported on the bearing portion, and wiring for transmitting electricity generated by the generator is provided on the support shaft. A hydrodynamic power generation apparatus characterized by that. 上記ギヤ列機構３２を、回転軸２４の端部に設けられる第１ギヤ３３と、第１ギヤ３３と噛合される第２ギヤ３４と、第１中間軸３５を介して第２ギヤ３４と連動する第３ギヤ３６と、第３ギヤ３６に噛合される第４ギヤ３７と、第２中間軸３８を介して第４ギヤ３７と連動する第５ギヤ３９と、第５ギヤ３９に噛合し、出力軸３１の端部に設けられる第６ギヤ４０とによって構成し、各ギヤの歯数を、第１ギヤ３３＞第２ギヤ３４，第３ギヤ３６＞第４ギヤ３７，第５ギヤ３９＞第６ギヤ４０になるように定めたことを特徴とする請求項１記載の流体力発電装置。The gear train mechanism 32 is interlocked with the second gear 34 via the first gear 33 provided at the end of the rotary shaft 24, the second gear 34 meshed with the first gear 33, and the first intermediate shaft 35. Meshing with the third gear 36, the fourth gear 37 meshed with the third gear 36, the fifth gear 39 interlocked with the fourth gear 37 via the second intermediate shaft 38, And a sixth gear 40 provided at the end of the output shaft 31, and the number of teeth of each gear is determined as follows: first gear 33> second gear 34, third gear 36> fourth gear 37, fifth gear 39> The hydrodynamic power generation device according to claim 1, wherein the hydrodynamic power generation device is defined to be a sixth gear 40.
JP2002344390A 2002-11-27 2002-11-27 Fluid power generator Expired - Fee Related JP3746759B2 (en)

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JP5114051B2 (en) * 2006-12-27 2013-01-09 清之 細田 Hydropower system
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