JPS62282177A - Blade fixing structure for windmill rotor - Google Patents
Blade fixing structure for windmill rotorInfo
- Publication number
- JPS62282177A JPS62282177A JP61124679A JP12467986A JPS62282177A JP S62282177 A JPS62282177 A JP S62282177A JP 61124679 A JP61124679 A JP 61124679A JP 12467986 A JP12467986 A JP 12467986A JP S62282177 A JPS62282177 A JP S62282177A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- root
- reinforced resin
- metal
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000012783 reinforcing fiber Substances 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000000835 fiber Substances 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 6
- 238000010008 shearing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- 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
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔発明の技術分野〕
本発明は風車用ロータのブレード取付構造に関するもの
である。Detailed Description of the Invention 3. Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a blade mounting structure for a wind turbine rotor.
風力発電機等の駆動源に使用される風車では、自然風の
風力エネルギを効率的に取り出せるようにロータのブレ
ードを出来るだけ軽量にすることが望ましく、そのため
ブレードを繊維強化樹脂製の中空構造にし、これを金属
製のハブに取付金具を介して取り付けるように構成する
のが一般的になっている。In wind turbines used as drive sources for wind power generators, etc., it is desirable to make the rotor blades as light as possible so that the wind energy of natural wind can be extracted efficiently.For this reason, the blades are made with hollow structures made of fiber reinforced resin. It has become common practice to attach this to a metal hub via a mounting bracket.
ところが、繊維強化樹脂は成形時の収縮現象等のため金
属に比べ加工精度を出し難く、そのためこの加工精度の
悪い点を補いながら、上記繊維強化樹脂製のブレードが
遠心力により金属製の取付金具から抜は出ないように固
定することは非常に難しいことであった。However, fiber-reinforced resin is difficult to achieve processing accuracy compared to metal due to shrinkage phenomenon during molding, etc. Therefore, while compensating for this poor processing accuracy, the fiber-reinforced resin blade is attached to the metal mounting bracket due to centrifugal force. It was extremely difficult to secure the bolts so that they would not come out.
このようなブレードの取付信頌性を向上するため、ブレ
ードの根部において、ブレードの長手方向に配列した補
強繊維を、取付金具に貫通させたボルトに巻き付は折り
返すようにしたものがある。しかし、このように補強繊
維をボルトに一々巻き付けて成形を行うことは、作業的
に非常に繁雑であり、その非能率性からコスト上昇の原
因になっている。In order to improve the installation reliability of such a blade, some blades have reinforcing fibers arranged in the longitudinal direction of the blade at the root of the blade that are wrapped around a bolt passed through a mounting fitting and then folded back. However, wrapping the reinforcing fibers around the bolt one by one to form the bolt is extremely complicated, and its inefficiency causes an increase in costs.
本発明の目的は、繁雑な成形作業を必要とせずに、繊維
強化樹脂製ブレードの金属製取付金具に対する取付信頼
性を向上することができる風車用ロータのブレード取付
構造を提供することにある。An object of the present invention is to provide a blade mounting structure for a wind turbine rotor that can improve the reliability of mounting a fiber-reinforced resin blade to a metal mounting bracket without requiring complicated molding operations.
上記目的を達成する本発明は、ハブに金属製の取付金具
を介して繊維強化樹脂製中空構造のブレードを取り付け
た風車用ロータにおいて、前記ブレードの根部に端部に
至るまで長手方向に配列した一方向性補強繊維テープと
長手方向と斜めに交差配列される補強繊維からなる補強
織物を埋設し、このブレード根部を前記取付金具に樹脂
フィラーを介して嵌合接着すると共に、取付金具とブレ
ード根部との間に係止金具を貫通させたことを特徴とす
るものである。To achieve the above object, the present invention provides a wind turbine rotor in which hollow blades made of fiber-reinforced resin are attached to a hub via metal fittings, in which the blades are arranged in the longitudinal direction from the root to the end. A reinforcing fabric made of unidirectional reinforcing fiber tape and reinforcing fibers diagonally arranged in the longitudinal direction is embedded, and the blade root is fitted and bonded to the mounting bracket via a resin filler, and the mounting bracket and the blade root are bonded together. It is characterized by having a locking fitting passed through between the two.
以下、本発明を図に示す実施例により説明する。 The present invention will be explained below with reference to embodiments shown in the drawings.
第４図は本発明のブレード取付構造を有するロータを取
り付けたプロペラ型風車を示す。１は上下に延びる支柱
であり、その上端にナセル２が支柱１の軸心回りに回転
自在に支持され、さらにこのナセル２にロータ３がはザ
水平の軸回りに回転自在に支持されている。ロータ３は
金属製のハブ４に、第１．２図に示すような繊維強化樹
脂製のブレード５，５を２枚対設して構成されている。FIG. 4 shows a propeller type wind turbine equipped with a rotor having the blade mounting structure of the present invention. Reference numeral 1 denotes a column extending vertically, and a nacelle 2 is supported at the upper end of the column so as to be rotatable around the axis of the column 1, and a rotor 3 is further supported on this nacelle 2 so as to be rotatable about a horizontal axis. . The rotor 3 is composed of a metal hub 4 and two opposing blades 5, 5 made of fiber reinforced resin as shown in FIG. 1.2.
上記構成において、ロータ３は矢印方向Ｗの風に対して
ナセル２を支柱１の回りに回転させながら風下側に移動
し、そのロータ３自身の回転をヨークケース６に内設し
た発電機に伝達するようにしている。In the above configuration, the rotor 3 moves to the leeward side while rotating the nacelle 2 around the support 1 in response to the wind in the direction of the arrow W, and transmits the rotation of the rotor 3 itself to the generator installed inside the yoke case 6. I try to do that.
第１，２図に示すように、繊維強化樹脂製のブレード５
は、その根部５ａが筒状に形成されて金属製の取付金具
７に固定され、かつその取付金具７を介してハブ４に固
定されるようになっている。取付金具７は筒状のスリー
ブ部８がフランジ部９にノ容接されることにより構成さ
れている。一方、ブレード５は一方向性補強繊維テープ
１０を長手方向に配列するように埋設すると共に、その
長手方向に斜めに交差配列する補強繊維からなる補強織
物１１を埋設し、これらにより曲げおよび↑戻り荷重に
対し剛性を有するようにしている。このように埋設され
た一方向性補強繊維テープ１０と補強織物１１とは、ブ
レード５の根部５ａの端部にまで及んでいる。As shown in Figures 1 and 2, a blade 5 made of fiber reinforced resin
The base portion 5a is formed into a cylindrical shape and is fixed to a metal fitting 7, and is fixed to the hub 4 via the fitting 7. The mounting bracket 7 is constructed by a cylindrical sleeve portion 8 being fitted into a flange portion 9. On the other hand, in the blade 5, unidirectional reinforcing fiber tapes 10 are embedded so as to be arranged in the longitudinal direction, and reinforcing fabrics 11 made of reinforcing fibers are arranged obliquely in the longitudinal direction. It is made to have rigidity against loads. The unidirectional reinforcing fiber tape 10 and the reinforcing fabric 11 buried in this way extend to the end of the root portion 5a of the blade 5.
このように補強繊維で補強されたブレード５の根部５ａ
は、取付金具７のスリーブ部８の内径側に挿入されると
き、繊維強化された樹脂インサート１２を介在させると
共にエポキシ接着剤等で嵌合接着された状態にされる。The root portion 5a of the blade 5 reinforced with reinforcing fibers in this way
When inserted into the inner diameter side of the sleeve portion 8 of the mounting bracket 7, the fiber-reinforced resin insert 12 is interposed and the insert is fitted and bonded with an epoxy adhesive or the like.
また、この嵌合接着された状態で、スリーブ部８の周方
向に沿って複数本のボルト１３がカラー１４を介してブ
レード根部５ａの内径側にまで貫通し、ナツト１３ａで
締付は固定されている。In addition, in this fitted and bonded state, a plurality of bolts 13 penetrate along the circumferential direction of the sleeve portion 8 to the inner diameter side of the blade root portion 5a via the collar 14, and are tightened with nuts 13a. ing.
上述したブレード取付構造では、ブレード根部５ａを取
付金具のスリーブ部８に嵌合させる部分において、一方
向性補強繊維テープ１０をボルト１３の回りに巻き返す
ことはせず、そのままストレートに端部にまで達するよ
うにしている。そのためブレード５を成形する際に、一
方向性補強繊維テープ１０をボルト孔部分で折り返すよ
うな面倒な作業は不要であり、その成形作業性を著しく
向上することができる。In the blade mounting structure described above, the unidirectional reinforcing fiber tape 10 is not wound around the bolt 13 at the part where the blade root 5a is fitted into the sleeve part 8 of the mounting fitting, but is straightened as it is to the end. I'm trying to reach it. Therefore, when molding the blade 5, the troublesome work of folding back the unidirectional reinforcing fiber tape 10 at the bolt hole portion is unnecessary, and the molding workability can be significantly improved.
一方、このように一方向性補強繊維テープ１０を折り返
さない構造にすると、その補強繊維テープ１０はボルト
１３のボルト孔の部分で一部切断された状態になり、そ
れによってブレード５の抜は止めに対する剪断方向の抵
抗力が減殺されることになる。しかし、上記本発明の取
付構造では、長手方向に交差配列する補強繊維からなる
補強織物１１が埋設されると共に、樹脂フィラー１２が
介在接着されているため、これらによって上記折り返す
補強繊維テープに代わって剪断方向の抜は止め防止を行
うことができる。On the other hand, if the unidirectional reinforcing fiber tape 10 is structured so as not to be folded back, the reinforcing fiber tape 10 will be partially cut at the bolt hole of the bolt 13, thereby preventing the blade 5 from being pulled out. This will reduce the resistance force in the shear direction. However, in the mounting structure of the present invention, the reinforcing fabric 11 made of reinforcing fibers arranged crosswise in the longitudinal direction is embedded, and the resin filler 12 is interposed and bonded. Pull-out in the shearing direction can be prevented.
したがって、繁雑な成形作業を必要とせずに、繊維強化
樹脂製ブレードの金属製取付金具に対する取付信頼性を
向上することができる。Therefore, the attachment reliability of the fiber-reinforced resin blade to the metal fitting can be improved without requiring complicated molding operations.
なお、上述した実施例では、ブレード根部を取付金具の
内径側に嵌合するようにしたが、これを取付金具の外径
側に嵌合させるようにしてもよい。ただし、繊維強化樹
脂製の寸法精度は外径側の方が出しやすいので、前者の
ようにする方が好都合である。In the above-described embodiment, the blade root portion is fitted to the inner diameter side of the mounting fitting, but it may be fitted to the outer diameter side of the mounting fitting. However, since the dimensional accuracy of fiber-reinforced resin is easier to achieve on the outer diameter side, it is more convenient to use the former.
上述したように本発明は、ハブに金属製の取付金具を介
して繊維強化樹脂製中空構造のブレードを取り付けた風
車用ロータにおいて、前記ブレードの根部に端部に至る
まで長手方向に配列した一方向性補強繊維テープと長手
方向と斜めに交差配列される補強繊維からなる補強ｌＰ
ｘ物を埋設し、このブレード根部を前記取付金具に樹脂
フィラーを介して嵌合接着すると共に、取付金具とブレ
ード根部との間に係止金具を貫通させたことを特徴とす
るものである。As described above, the present invention provides a wind turbine rotor in which hollow blades made of fiber-reinforced resin are attached to a hub via metal fittings, in which blades are arranged in the longitudinal direction at the roots of the blades up to the ends. Reinforcement lP made of directional reinforcing fiber tape and reinforcing fibers arranged diagonally in the longitudinal direction
The blade root is fitted and bonded to the mounting fitting via a resin filler, and a locking fitting is passed through between the mounting fitting and the blade root.
したがって、一方向性補強繊維テープをボルト等の係止
金具回りに折り返す構造にしな（でも、上記補強織物お
よび樹脂フィラーによってブレードの剪断方向の抜は止
め作用を行わせるようにすることができ、それによって
繁雑な成形作業を必要とせずに、繊維強化樹脂製ブレー
ドの金属製取付金具に対する取付信頼性を向上すること
ができる。Therefore, the unidirectional reinforcing fiber tape can be folded back around a locking fitting such as a bolt (however, the reinforcing fabric and resin filler can be used to prevent the blade from coming out in the shearing direction. Thereby, the reliability of attaching the fiber-reinforced resin blade to the metal fitting can be improved without requiring complicated molding operations.
第１図は本発明の実施例によるブレード取付構造を有す
るブレード根部を示す縦断面図、第２図は同ブレードを
長手方向の一部を切断して示す斜視図、第３図は上記ブ
レード取付構造の部分を模式的に示す説明図、第４図は
上記ブレードからなるロータを有する風車の斜視図であ
る。
３・・・ロータ、 ４・・・ハブ、 ５・・・ブレ
ード、５ａ・・・根部、 ７・・・取付金具、 ８・・
・スリーブ部、 ９・・・フランジ部、 １０・・・
一方向性補強繊維テープ、 １１・・・補強織物、
１２・・・樹脂インサート、 １３・・・ボルト（
係止金具）。FIG. 1 is a longitudinal cross-sectional view showing the root of a blade having a blade attachment structure according to an embodiment of the present invention, FIG. 2 is a perspective view showing the same blade partially cut away in the longitudinal direction, and FIG. 3 is a view showing the blade attachment structure described above. FIG. 4 is a perspective view of a wind turbine having a rotor made of the blades described above. 3... Rotor, 4... Hub, 5... Blade, 5a... Root, 7... Mounting bracket, 8...
・Sleeve part, 9...Flange part, 10...
unidirectional reinforcing fiber tape, 11... reinforcing fabric,
12...Resin insert, 13...Bolt (
locking metal fittings).
Claims (2)
中空構造のブレードを取り付けた風車用ロータにおいて
、前記ブレードの根部に端部に至るまで長手方向に配列
した一方向性補強繊維テープと長手方向と斜めに交差配
列される補強繊維からなる補強織物を埋設し、このブレ
ード根部を前記取付金具に樹脂フィラーを介して嵌合接
着すると共に、取付金具とブレード根部との間に係止金
具を貫通させたことを特徴とする風車用ロータのブレー
ド取付構造。(1) In a wind turbine rotor in which a fiber-reinforced resin hollow structure blade is attached to the hub via a metal mounting bracket, a unidirectional reinforcing fiber tape is arranged in the longitudinal direction at the root of the blade all the way to the end. A reinforcing fabric made of reinforcing fibers arranged diagonally with respect to the longitudinal direction is buried, and the root of the blade is fitted and bonded to the mounting bracket via a resin filler, and is locked between the mounting bracket and the blade root. A wind turbine rotor blade mounting structure characterized by having metal fittings passed through it.
特許請求の範囲第１項記載の風車用ロータのブレード取
付構造。(2) The blade mounting structure for a wind turbine rotor according to claim 1, wherein the blade root portion fits into the inner diameter side of the mounting fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61124679A JPS62282177A (en) | 1986-05-31 | 1986-05-31 | Blade fixing structure for windmill rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61124679A JPS62282177A (en) | 1986-05-31 | 1986-05-31 | Blade fixing structure for windmill rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62282177A true JPS62282177A (en) | 1987-12-08 |
Family
ID=14891386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61124679A Pending JPS62282177A (en) | 1986-05-31 | 1986-05-31 | Blade fixing structure for windmill rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62282177A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03240428A (en) * | 1990-02-19 | 1991-10-25 | Copal Electron Co Ltd | Motor for electrically-driven reel for fishing |
| JPH03129782U (en) * | 1990-04-10 | 1991-12-26 | ||
| JPH0666244A (en) * | 1992-08-21 | 1994-03-08 | Mitsubishi Heavy Ind Ltd | Windmill vane |
| JP2009502545A (en) * | 2005-07-19 | 2009-01-29 | ユーロコプター・ドイッチェランド・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Method of manufacturing a structural member made of a fiber composite material bent three-dimensionally |
| WO2012111518A1 (en) * | 2011-02-18 | 2012-08-23 | 三菱重工業株式会社 | Blade-root-forming piece for wind turbine blade, blade root structure for wind turbine blade using same, wind turbine blade, wind turbine and method for producing wind turbine blade |
| JP2018127964A (en) * | 2017-02-09 | 2018-08-16 | 三菱重工業株式会社 | Wind power generation facility, windmill blade, and reinforcement method of windmill blade |
| JP2018146025A (en) * | 2017-03-03 | 2018-09-20 | 株式会社Ihi | Fastening structure |
| JP2018178799A (en) * | 2017-04-07 | 2018-11-15 | 株式会社Ihi | Blade |
| JP2018178800A (en) * | 2017-04-07 | 2018-11-15 | 株式会社Ihi | Blade |
-
1986
- 1986-05-31 JP JP61124679A patent/JPS62282177A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03240428A (en) * | 1990-02-19 | 1991-10-25 | Copal Electron Co Ltd | Motor for electrically-driven reel for fishing |
| JPH03129782U (en) * | 1990-04-10 | 1991-12-26 | ||
| JPH0666244A (en) * | 1992-08-21 | 1994-03-08 | Mitsubishi Heavy Ind Ltd | Windmill vane |
| JP2009502545A (en) * | 2005-07-19 | 2009-01-29 | ユーロコプター・ドイッチェランド・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Method of manufacturing a structural member made of a fiber composite material bent three-dimensionally |
| JP4833286B2 (en) * | 2005-07-19 | 2011-12-07 | ユーロコプター・ドイッチェランド・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Method of manufacturing a structural member made of a fiber composite material bent three-dimensionally |
| JP2012172560A (en) * | 2011-02-18 | 2012-09-10 | Mitsubishi Heavy Ind Ltd | Blade root forming piece for wind turbine blade, blade root structure for wind turbine blade using the same, wind turbine blade, wind turbine and method for producing wind turbine blade |
| WO2012111518A1 (en) * | 2011-02-18 | 2012-08-23 | 三菱重工業株式会社 | Blade-root-forming piece for wind turbine blade, blade root structure for wind turbine blade using same, wind turbine blade, wind turbine and method for producing wind turbine blade |
| JP2018127964A (en) * | 2017-02-09 | 2018-08-16 | 三菱重工業株式会社 | Wind power generation facility, windmill blade, and reinforcement method of windmill blade |
| US10514022B2 (en) | 2017-02-09 | 2019-12-24 | Mitsubishi Heavy Industries, Ltd. | Wind turbine generator system, wind turbine blade, and reinforcing method for wind turbine blade |
| US11118563B2 (en) | 2017-02-09 | 2021-09-14 | Mitsubishi Heavy Industries, Ltd. | Wind turbine generator system, wind turbine blade, and reinforcing method for wind turbine blade |
| JP2018146025A (en) * | 2017-03-03 | 2018-09-20 | 株式会社Ihi | Fastening structure |
| JP2018178799A (en) * | 2017-04-07 | 2018-11-15 | 株式会社Ihi | Blade |
| JP2018178800A (en) * | 2017-04-07 | 2018-11-15 | 株式会社Ihi | Blade |
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