JP2006250034A - Shaft coupling structure of wind power generation device - Google Patents

Shaft coupling structure of wind power generation device Download PDF

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JP2006250034A
JP2006250034A JP2005067563A JP2005067563A JP2006250034A JP 2006250034 A JP2006250034 A JP 2006250034A JP 2005067563 A JP2005067563 A JP 2005067563A JP 2005067563 A JP2005067563 A JP 2005067563A JP 2006250034 A JP2006250034 A JP 2006250034A
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link member
wind power
shaft
coupling structure
shaft coupling
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JP4738027B2 (en
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Hisao Miyake
寿生 三宅
Masaaki Shibata
昌明 柴田
Nozomi Kawasetsu
川節　　望
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Mitsubishi Heavy Industries Ltd
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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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a shaft coupling structure of a wind power generation device with high reliability increased in a large mis-alignment absorbing amount to facilitate a reduction in the size of the wind power generating device. <P>SOLUTION: In this shaft coupling of the wind power generation device connecting a speed increaser to a generator to transmit a shaft torque, a torque is transmitted through a link member 20 formed by laminating fiber-reinforced plastic thin-sheets on each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、風力発電装置に適用される軸カップリング構造に関する。   The present invention relates to a shaft coupling structure applied to a wind power generator.

従来より、風力発電装置においては、増速機と発電機との間を連結して軸トルクを伝達するとともに、両軸のミスアライメントを吸収する軸カップリングが用いられている。
このような風力発電装置用の軸カップリングとしては、ステンレス製の薄板を重ね合わせたディスク型カップリングが使用されている。 Conventionally, in wind turbine generators, a shaft coupling that transmits a shaft torque by connecting a speed increaser and a generator and absorbs misalignment of both shafts has been used.
As such a shaft coupling for a wind turbine generator, a disk-type coupling in which thin stainless steel plates are stacked is used.

さらに、近年の風力発電装置においては、風車の大型化に伴い、繊維強化プラスチック（ＦＲＰ）製の厚板リンク方式を採用した軸カップリング構造もある。
また、軸トルクの伝達に用いられる駆動用カップリングとしては、耐久性を向上させるため、薄板であるラミネートプレートを複数枚重ね合わせて構成されたラミネートカップリングが提案されている。このラミネートカップリングにおいては、板厚の薄いラミネートを複数枚重ね合わせた中間部を、板厚の厚い両端のラミネートプレートで挟んで構成することにより、疲労破壊の防止や共振に対する信頼性が向上するとされる。（たとえば、特許文献１参照）
特開平１１−３２４８４５号公報（図１参照） Furthermore, in recent wind turbine generators, there is also a shaft coupling structure that employs a thick plate link system made of fiber reinforced plastic (FRP) as the wind turbine becomes larger.
Further, as a driving coupling used for transmission of shaft torque, a laminating coupling configured by laminating a plurality of thin laminating plates has been proposed in order to improve durability. In this laminate coupling, the intermediate part where a plurality of thin laminates are stacked is sandwiched between the laminate plates on both ends of the thick plate, thereby preventing fatigue failure and improving the reliability of resonance. Is done. (For example, see Patent Document 1)
Japanese Patent Laid-Open No. 11-324845 (see FIG. 1)

ところで、近年における風力発電装置の大型化に伴い、空力荷重の増加、ナセルの大型化及び軽量化が進み、特に増速機と発電機との間を連結する高速軸でのミスアライメント量が増加する傾向にある。しかしながら、従来のステンレス製薄板を重ね合わせたディスク型カップリングは、増加傾向にあるミスアライメントの吸収量に限界があるので、風力発電装置の大型化を困難にする要因の一つとなっている。
このような背景から、ミスアライメントの吸収量が大きく信頼性の高い風力発電装置の軸カップリング構造の開発が望まれる。 By the way, with the recent increase in size of wind turbine generators, the increase in aerodynamic load, the increase in size and weight of nacelles has progressed, and in particular, the amount of misalignment at the high-speed shaft connecting the gearbox and the generator has increased. Tend to. However, the conventional disk-type coupling in which thin stainless steel plates are superposed is one of the factors that make it difficult to increase the size of the wind power generator because there is a limit to the amount of misalignment that tends to increase.
From such a background, it is desired to develop a shaft coupling structure of a wind turbine generator that has a large misalignment absorption amount and high reliability.

本発明は、上記の事情に鑑みてなされたものであり、その目的とするところは、風力発電装置の大型化を容易にするため、ミスアライメントの吸収量が大きく信頼性の高い風力発電装置の軸カップリング構造を提供することにある。   The present invention has been made in view of the above circumstances. The purpose of the present invention is to increase the amount of misalignment and to provide a highly reliable wind power generator in order to facilitate the enlargement of the wind power generator. It is to provide a shaft coupling structure.

本発明は、上記の課題を解決するため、下記の手段を採用した。
本発明に係る風力発電装置の軸カップリング構造は、増速機と発電機との間を連結して軸トルクの伝達をする風力発電装置の軸カップリング構造であって、繊維強化プラスチック製の薄板を積層してなるリンク部材を介してトルク伝達を行うことを特徴とするものである。 In order to solve the above problems, the present invention employs the following means.
A shaft coupling structure of a wind turbine generator according to the present invention is a shaft coupling structure of a wind turbine generator that transmits shaft torque by connecting a speed increaser and a generator, and is made of fiber-reinforced plastic. Torque is transmitted through a link member formed by laminating thin plates.

このような風力発電装置のカップリング構造によれば、繊維強化プラスチック製の薄板を積層してなるリンク部材を介してトルク伝達を行うので、ヤング率が小さくフレキシブル性の高いリンク部材により、トルクの伝達を確実に行うとともに、ミスアライメントの吸収量を増加させることができる。   According to such a coupling structure of a wind turbine generator, torque is transmitted through a link member formed by laminating thin plates made of fiber reinforced plastic. Transmission can be performed reliably and the amount of misalignment absorbed can be increased.

上述した本発明においては、前記リンク部材は、繊維材を同一方向に配列した一方向材と、該一方向材の両端連結部に貼り付けたダブルバイアスマット材とを組み合わせた構成であることが好ましく、これにより、リンク部材に作用する引張応力と略同方向に繊維材を配列して強度特性を最適化することができる。   In the present invention described above, the link member may have a configuration in which a unidirectional material in which fiber materials are arranged in the same direction and a double bias mat material attached to both end connecting portions of the unidirectional material. Preferably, this makes it possible to optimize the strength characteristics by arranging the fiber materials in substantially the same direction as the tensile stress acting on the link member.

上述した本発明によれば、フレキシブル性の高い繊維強化プラスチック（ＦＲＰ）製薄板のリンクを重ね合わせた構成としたので、確実なトルク伝達に加えて、ミスアライメントの吸収量が大きく信頼性の高い風力発電装置の軸カップリング構造を提供することができる。このため、風力発電装置の大型化を妨げている要因の一つであるミスアライメントの問題が解消され、風力発電装置の大型化を容易にするという顕著な効果が得られる。
また、ミスアライメントの吸収量が大きい軸カップリング構造を採用することで、製造工場及び設置現場において増速機と発電機の間で厳密なセンターリングを行う必要がなくなるので、組立作業時の工数低減にも有効である。 According to the present invention described above, since the link of the highly flexible fiber reinforced plastic (FRP) thin plate is superposed, in addition to reliable torque transmission, the misalignment absorption amount is large and the reliability is high. A shaft coupling structure of a wind turbine generator can be provided. For this reason, the problem of misalignment, which is one of the factors hindering the increase in size of the wind turbine generator, is solved, and a remarkable effect of facilitating the increase in size of the wind turbine generator can be obtained.
In addition, by adopting a shaft coupling structure that absorbs a lot of misalignment, it is not necessary to perform exact centering between the gearbox and the generator at the manufacturing plant and installation site. It is also effective for reduction.

以下、本発明に係る風力発電装置の軸カップリング構造の一実施形態を図面に基づいて説明する。
図８に示す風力発電装置１は、基礎上に立設される支柱２と、支柱２の上端に設置されるナセル３と、略水平な軸線周りに回転可能としてナセル３に設けられるローターヘッド４とを有している。
ローターヘッド４には、その回転軸線周りに放射状にして複数枚の風車翼５が取り付けられている。これにより、ローターヘッド４の回転軸線方向から風車翼５に当たった風の力が、ローターヘッド４を回転軸線周りに回転させる動力に変換されるようになっている。 Hereinafter, an embodiment of a shaft coupling structure of a wind turbine generator according to the present invention will be described with reference to the drawings.
A wind turbine generator 1 shown in FIG. 8 includes a support column 2 standing on a foundation, a nacelle 3 installed at the upper end of the support column 2, and a rotor head 4 provided in the nacelle 3 so as to be rotatable about a substantially horizontal axis. And have.
A plurality of wind turbine blades 5 are attached to the rotor head 4 in a radial pattern around the rotation axis. As a result, the force of the wind striking the wind turbine blade 5 from the direction of the rotation axis of the rotor head 4 is converted into power for rotating the rotor head 4 around the rotation axis.

ナセル３の内部には、風力で回転する風車翼５及びロータヘッド４の回転数を増速して効率よく発電するため、図示しない増速機及び発電機が収納設置されている。増速機及び発電機の軸間は、カップリングを介して互いに連結し、軸トルクが伝達されるようになっている。
図１に示すように、両機器の入力軸６及び出力軸７を連結する軸間には、ミスアライメントを吸収してトルク伝達を行うため、軸カップリング装置１０が設けられている。この軸カップリング装置１０は、フレキシブル性の高い素材である繊維強化プラスチック（以下、ＦＲＰ）製の薄板を複数枚積層してなるリンク部材２０を介してトルク伝達を行うように構成されている。 Inside the nacelle 3, a speed increaser and a generator (not shown) are housed and installed in order to efficiently generate power by increasing the rotational speed of the wind turbine blades 5 and the rotor head 4 rotated by wind power. The shafts of the speed increaser and the generator are connected to each other via a coupling so that shaft torque is transmitted.
As shown in FIG. 1, a shaft coupling device 10 is provided between the shafts connecting the input shaft 6 and the output shaft 7 of both devices in order to absorb misalignment and transmit torque. The shaft coupling device 10 is configured to transmit torque via a link member 20 formed by laminating a plurality of thin plates made of fiber reinforced plastic (hereinafter referred to as FRP), which is a highly flexible material.

図示の軸カップリング装置１０は、図２に示すように、軸部１２の両端部に、すなわち入力軸６と軸部１２との間及び出力軸７と軸部１２との間に、各々４枚のリンク部材２０を配置した構成とされる。
４枚のリンク部材２０は、図２（ａ）に示すように、矩形状の両端部を略半円形状に切り欠いたもので、軸部１２の中心軸（点Ｃ）を中心にして、同一面上の円周方向に９０度ピッチで均等に配置されている。また、各リンク部材２０の長手方向となる軸線Ｌは、軸部１２の中心軸を通り、この中心軸と直交する軸部１２の断面円周方向を９０度に分割する直線Ｄと直交する配置とされる。 As shown in FIG. 2, the illustrated shaft coupling device 10 is provided at both ends of the shaft portion 12, that is, between the input shaft 6 and the shaft portion 12 and between the output shaft 7 and the shaft portion 12. The link member 20 is arranged.
As shown in FIG. 2 (a), the four link members 20 are obtained by cutting out both ends of a rectangular shape into a substantially semicircular shape, and centering on the central axis (point C) of the shaft portion 12, They are evenly arranged at a pitch of 90 degrees in the circumferential direction on the same plane. Further, the axis L that is the longitudinal direction of each link member 20 passes through the central axis of the shaft portion 12, and is disposed orthogonal to the straight line D that divides the cross-sectional circumferential direction of the shaft portion 12 orthogonal to the central axis into 90 degrees. It is said.

各リンク部材２０は、一端が入力軸６側の端部に固着したフランジ６ａにボルト・ナット１３をもって固定され、他端が軸部１２の端部に固着した支持板１４にボルト・ナット１５をもって固定されている。すなわち、各リンク部材２０は、一端が入力軸６側に連結され、他端が軸部１２側に連結された構成となる。なお、リンク部材２０が入力軸６と連結される部分の支持板１４は切り欠かれて存在せず、同様に、リンク部材２０が軸部１２と連結される部分のフランジ６ａには、貫通孔６ｂ（図１参照）が穿設されている。
また、図２（ｂ）に示す出力軸７側については、リンク部材２０等の配置を全体に円周方向へ９０度回転させた構成とし、かつ、リンク部材２０の一端を固定する相手が出力軸７のフランジ７ａとなる以外は、実質的に上述した入力軸６側と同じになる。なお、図１における符号７ｂは、リンク部材２０が軸部１２と連結される部分のフランジ７ａに穿設された貫通孔である。 Each link member 20 is fixed with a bolt and nut 13 to a flange 6a whose one end is fixed to the end on the input shaft 6 side, and has a bolt and nut 15 to a support plate 14 whose other end is fixed to the end of the shaft portion 12. It is fixed. That is, each link member 20 has a configuration in which one end is connected to the input shaft 6 side and the other end is connected to the shaft portion 12 side. The portion of the support plate 14 where the link member 20 is connected to the input shaft 6 is not cut out. Similarly, the flange 6a where the link member 20 is connected to the shaft portion 12 has a through hole. 6b (refer FIG. 1) is drilled.
In addition, the output shaft 7 side shown in FIG. 2B is configured such that the arrangement of the link member 20 and the like is rotated 90 degrees in the circumferential direction as a whole, and the other end that fixes one end of the link member 20 outputs Except for the flange 7a of the shaft 7, it is substantially the same as the input shaft 6 side described above. In addition, the code | symbol 7b in FIG. 1 is the through-hole drilled in the flange 7a of the part where the link member 20 is connected with the axial part 12. FIG.

続いて、上述したリンク部材２０の構成を図３及び図４に基づいて説明する。
リンク部材２０は、薄板積層体２１の両端に連結部２２，２３を設けた構成とされる。連結部２２，２３は、薄板積層体２１を貫通するスリーブ２４の鍔部２４ａと、板状部材２５とにより、薄板積層体２１を両面から挟持した構成とされる。連結部２２，２３は、各々異なる面に鍔部２４ａ及び板状部材２５が配置されている。また、スリーブ２４の貫通孔は、上述したボルト・ナット１３，１５を通す穴となる。 Then, the structure of the link member 20 mentioned above is demonstrated based on FIG.3 and FIG.4.
The link member 20 has a configuration in which connecting portions 22 and 23 are provided at both ends of the thin plate laminate 21. The connecting portions 22 and 23 are configured such that the thin plate laminate 21 is sandwiched from both sides by the flange portion 24 a of the sleeve 24 that penetrates the thin plate laminate 21 and the plate-like member 25. As for the connection parts 22 and 23, the collar part 24a and the plate-shaped member 25 are arrange | positioned at a respectively different surface. The through hole of the sleeve 24 is a hole through which the bolts and nuts 13 and 15 described above are passed.

薄板積層体２１は、図４に示すＦＲＰ製薄板３０を複数枚（たとえば７枚）積層したものである。ＦＲＰ製薄板３０は、繊維材を同一方向に配列した一方向材（ＵＤ材）よりなる板材３１と、板材３１の両端部にダブルバイアスマット材（ＤＢＭ材）３２を両面に貼り付けた連結部３３とにより構成される。ここで使用するＦＲＰの一方向材は、繊維材をリンク部材２０の軸線Ｌと同一方向に配列した板材３１とされる。また、ダブルバイアスマット材３２は、複数方向から入力を受ける連結部３３の補強材として機能するように、繊維材を複数方向（たとえば直交する２方向）に配列したＦＲＰ板材である。なお、図中の符号３４は、上述したスリーブ２４を挿入するための貫通孔である。
このように、両端部の両面にダブルバイアスマット材３２を貼り付けたＦＲＰ製薄板３０を複数枚積層した薄板積層体２１は、図示されてはいないものの、実際には隣接する板材３１間に、ダブルバイアスマット材３２を２枚重ねた厚さに相当する微小な隙間が形成されている。 The thin plate laminate 21 is obtained by laminating a plurality of (for example, seven) FRP thin plates 30 shown in FIG. The FRP thin plate 30 includes a plate member 31 made of a unidirectional member (UD member) in which fiber materials are arranged in the same direction, and a connecting portion in which a double bias mat member (DBM member) 32 is attached to both ends of the plate member 31 on both sides. 33. The FRP unidirectional material used here is a plate material 31 in which fiber materials are arranged in the same direction as the axis L of the link member 20. The double bias mat member 32 is an FRP plate member in which fiber materials are arranged in a plurality of directions (for example, two orthogonal directions) so as to function as a reinforcing member for the connecting portion 33 that receives input from a plurality of directions. In addition, the code | symbol 34 in a figure is a through-hole for inserting the sleeve 24 mentioned above.
In this way, the thin plate laminate 21 in which a plurality of FRP thin plates 30 each having the double bias mat material 32 attached to both ends is laminated is not shown, but actually, between adjacent plate materials 31, A minute gap corresponding to the thickness of two double bias mat members 32 stacked is formed.

以下、上述した構成の軸カップリング装置１０について、その動作及び作用を図１、図５ないし図７に基づいて説明する。
図５は、入力軸６から出力軸７にトルク伝達を行う場合において、軸カップリング装置１０に作用する接線方向の力Ｆｔを示している。この力Ｆｔは、入力軸６の回転がフランジ６ａを介してボルト・ナット１３に伝達され、さらに、リンク部材２０及びボルト・ナット１５を介して支持板１４に伝達される。このようにして支持板１４と一体である軸部１２に伝達されたトルクは、実質的に上述した入力軸６と同様の方法で出力軸７にトルク伝達が行われる。 Hereinafter, the operation and action of the shaft coupling device 10 having the above-described configuration will be described with reference to FIGS. 1 and 5 to 7.
FIG. 5 shows a tangential force Ft acting on the shaft coupling device 10 when torque is transmitted from the input shaft 6 to the output shaft 7. The force Ft is transmitted to the bolts and nuts 13 through the flange 6a and the rotation of the input shaft 6 is further transmitted to the support plate 14 through the link member 20 and the bolts and nuts 15. Thus, the torque transmitted to the shaft portion 12 that is integral with the support plate 14 is transmitted to the output shaft 7 in substantially the same manner as the input shaft 6 described above.

このような力Ｆｔを受けると、リンク部材２０においても、図６（ａ）に示すように、同様の力Ｆｔが作用する。このような力Ｆｔを受けることにより、図７に示すように、各板材３１には引張力ｆとして作用するが、この引張力ｆと略同方向に繊維材を配列した一方向材が採用されている。この繊維材は引張応力が大きいため、一方向材の特性を利用することで強度上極めて有利になる。
また、入力軸６及び出力軸７間にミスアライメントが生じた場合、図６（ｂ）に示すような力Ｆｍがリンク部材２０に作用する。この結果、リンク部材２０の薄板積層体２１には引張力ｆが作用するので、各板材３１にも同様の引張力ｆが作用する。従って、この引張力ｆと略同方向に繊維材を配列した一方向材の採用により、リンク材２０がフレキシブルに撓んで広範囲にわたってミスアライメントを吸収するとともに、強度面でも極めて有利になる。 When such a force Ft is received, a similar force Ft acts on the link member 20 as shown in FIG. By receiving such a force Ft, as shown in FIG. 7, each plate material 31 acts as a tensile force f. However, a unidirectional material in which fiber materials are arranged in substantially the same direction as the tensile force f is employed. ing. Since this fiber material has a large tensile stress, it is extremely advantageous in terms of strength by utilizing the characteristics of the unidirectional material.
Further, when misalignment occurs between the input shaft 6 and the output shaft 7, a force Fm as shown in FIG. 6B acts on the link member 20. As a result, since the tensile force f acts on the thin plate laminate 21 of the link member 20, the same tensile force f acts on each plate material 31. Therefore, by employing a unidirectional material in which fiber materials are arranged in substantially the same direction as the tensile force f, the link material 20 flexes flexibly to absorb misalignment over a wide range and is extremely advantageous in terms of strength.

すなわち、上述した風力発電装置のカップリング構造によれば、繊維強化プラスチック製の薄い板材３１を積層してなるリンク部材２０を介してトルク伝達を行うので、ヤング率が小さくフレキシブル性の高いリンク材２０により、トルクの伝達を確実に行うとともに、強度面の向上とともに信頼性が増し、かつ、ミスアライメントの吸収量も増加させることができる。
また、リンク部材２０は、軸線Ｌが中心Ｃを通り円周方向を分割する直線Ｄと直交するように配置され、かつ、繊維材を軸線Ｌと同一方向に配列した一方向材と、この一方向材の両端連結部に貼り付けたダブルバイアスマット材とを組み合わせた構成としたので、リンク部材２０の軸線方向に作用する引張応力と略同方向に繊維材が配列されて強度特性を最適化することができる。 That is, according to the coupling structure of the wind power generator described above, torque transmission is performed through the link member 20 formed by laminating thin plate members 31 made of fiber reinforced plastic, so that the link material has a low Young's modulus and high flexibility. The torque 20 can be reliably transmitted, the strength can be improved, the reliability can be increased, and the misalignment absorption can be increased.
The link member 20 is arranged so that the axis L is perpendicular to a straight line D that passes through the center C and divides the circumferential direction, and the one-way material in which the fiber materials are arranged in the same direction as the axis L, Since the structure is combined with a double bias mat material attached to both ends of the directional material, the fiber material is arranged in substantially the same direction as the tensile stress acting in the axial direction of the link member 20 to optimize the strength characteristics. can do.

また、リンク部材２０は、左右対称となるよう９０度ピッチに４枚が配置されているので、逆回転方向のトルク伝達にも対応することが可能である。
なお、伝達トルクの大きさによっては、リンク部材２０を３枚とすることも可能である。この場合、逆回転方向のトルク伝達に対しては、リンク部材２０に圧縮力が付加される。
さらに、図４に示す薄板積層材は、ダブルバイアスマットを両端のスリーブ貫通孔の周囲にのみ配しいているが、伝達トルク及びミスアライメントの大きさによっては、ダブルバイアスマットを薄板積層材の全面に配することも可能である。
なお、本発明は上述した実施形態に限定されるものではなく、たとえば板材３１の積層枚数など、本発明の要旨を逸脱しない範囲内において適宜変更することができる。 In addition, since four link members 20 are arranged at a 90-degree pitch so as to be symmetrical, it is possible to cope with torque transmission in the reverse rotation direction.
Depending on the magnitude of the transmission torque, the number of link members 20 can be three. In this case, a compressive force is applied to the link member 20 for torque transmission in the reverse rotation direction.
Further, in the thin plate laminate shown in FIG. 4, the double bias mat is disposed only around the sleeve through holes at both ends. However, depending on the magnitude of the transmission torque and misalignment, the double bias mat is disposed on the entire surface of the thin plate laminate. It is also possible to arrange them.
In addition, this invention is not limited to embodiment mentioned above, For example, it can change suitably in the range which does not deviate from the summary of this invention, such as the lamination | stacking number of the board | plate materials 31.

本発明に係る風力発電装置のカップリング構造について、一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment about the coupling structure of the wind power generator which concerns on this invention. リンク部材の配列を示す図で、（ａ）は図１のＡ−Ａ断面図、（ｂ）は図１のＢ−Ｂ断面図である。It is a figure which shows the arrangement | sequence of a link member, (a) is AA sectional drawing of FIG. 1, (b) is BB sectional drawing of FIG. リンク部材の構成例を示す図で、（ａ）は平面図、（ｂ）は一部断面正面図である。It is a figure which shows the structural example of a link member, (a) is a top view, (b) is a partial cross section front view. 繊維強化プラスチック（ＦＲＰ）製薄板の構成例を示す図で、（ａ）は平面図、（ｂ）は正面図、（ｃ）は（ａ）のＣ−Ｃ断面図である。It is a figure which shows the structural example of a fiber reinforced plastic (FRP) thin plate, (a) is a top view, (b) is a front view, (c) is CC sectional drawing of (a). 図２（ｂ）のリンク部材に対し、トルク伝達により作用する力Ｆｔの方向を示す説明図である。It is explanatory drawing which shows the direction of force Ft which acts on a link member of FIG.2 (b) by torque transmission. リンク部材単体に作用する力の方向を示す説明図で、（ａ）はトルク伝達により作用する力Ｆｔの方向を示し、（ｂ）はミスアライメントの吸収により作用する力Ｆｍの方向を示している。It is explanatory drawing which shows the direction of the force which acts on a link member single-piece | unit, (a) shows the direction of force Ft which acts by torque transmission, (b) has shown the direction of force Fm which acts by absorption of misalignment. . 繊維強化プラスチック（ＦＲＰ）製薄板に作用する引張力ｆを示す説明図である。It is explanatory drawing which shows the tensile force f which acts on a fiber reinforced plastic (FRP) thin plate. 風力発電装置の構成例を示す側面図である。It is a side view which shows the structural example of a wind power generator.

符号の説明Explanation of symbols

１ 風力発電装置
３ ナセル
６ 入力軸
７ 出力軸
６ａ，７ａ フランジ
１０ 軸カップリング装置
１２ 軸部
１３，１５ ボルト・ナット
１４ 支持板
２０ リンク部材
２１ 薄板積層体
２４ スリーブ
２４ａ 鍔部
２５ 板状部材
３０ ＦＲＰ製薄板
３１ 板材（一方向材／ＵＤ材）
３２ ダブルバイアスマット材（ＤＢＭ材） DESCRIPTION OF SYMBOLS 1 Wind power generator 3 Nacelle 6 Input shaft 7 Output shaft 6a, 7a Flange 10 Shaft coupling device 12 Shaft part 13, 15 Bolt and nut 14 Support plate 20 Link member 21 Thin plate laminated body 24 Sleeve 24a Eave part 25 Plate-like member 30 Thin plate made of FRP 31 Plate material (unidirectional material / UD material)
32 Double bias mat material (DBM material)

Claims (2)

増速機と発電機との間を連結して軸トルクの伝達をする風力発電装置の軸カップリング構造であって、
繊維強化プラスチック製の薄板を積層してなるリンク部材を介してトルク伝達を行うことを特徴とする風力発電装置のカップリング構造。 A shaft coupling structure of a wind turbine generator that transmits shaft torque by connecting a speed increaser and a generator,
A coupling structure of a wind power generator, wherein torque transmission is performed through a link member formed by laminating thin plates made of fiber reinforced plastic. 前記リンク部材は、繊維材を同一方向に配列した一方向材と、該一方向材の両端連結部に貼り付けたダブルバイアスマット材とにより構成されていることを特徴とする請求項１に記載の風力発電装置のカップリング構造。   The said link member is comprised by the unidirectional material which arranged the fiber material in the same direction, and the double bias mat material affixed on the both-ends connection part of this unidirectional material, It is characterized by the above-mentioned. Wind power generator coupling structure.
JP2005067563A 2005-03-10 2005-03-10 Wind power generator shaft coupling structure Expired - Fee Related JP4738027B2 (en)

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US10132362B2 (en) 2014-03-07 2018-11-20 Jtekt Corporation Power generation device and shaft coupling device with elastic member used therein
CN105179502A (en) * 2015-09-15 2015-12-23 宁波龙旋机械制造有限公司 Insulation coupler and replacement method thereof
CN105757141A (en) * 2015-12-31 2016-07-13 浙江大学 Elastic wind power coupler with stepless speed change and on-off functions
CN105757141B (en) * 2015-12-31 2020-05-22 浙江大学 Elastic wind power coupling with stepless speed change and clutch functions

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