JPS6312887A - Power transmission mechanism for windmill - Google Patents
Power transmission mechanism for windmillInfo
- Publication number
- JPS6312887A JPS6312887A JP61155845A JP15584586A JPS6312887A JP S6312887 A JPS6312887 A JP S6312887A JP 61155845 A JP61155845 A JP 61155845A JP 15584586 A JP15584586 A JP 15584586A JP S6312887 A JPS6312887 A JP S6312887A
- Authority
- JP
- Japan
- Prior art keywords
- differential
- tower
- shaft
- wind turbine
- transmitted
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims description 11
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 101001010591 Homo sapiens Interleukin-20 Proteins 0.000 description 1
- 102100030692 Interleukin-20 Human genes 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
-
- 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】
［産業上の利用分野］
本発明は、風車によって風力から変換された機械的回転
エネルギーを、電気、熱等のエネルギーに変換するエネ
ルギー変換システム等において利用するのに適した風車
用動力伝達機構に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is suitable for use in an energy conversion system that converts mechanical rotational energy converted from wind power by a wind turbine into energy such as electricity or heat. The present invention relates to a power transmission mechanism for a wind turbine.
［従来の技術］
従来から知られている水平軸形風力発電システムなどで
は、一般に、タワーの上端に取付けたナセル内に、風車
ブレードに連結された風車ローター、増速機、発電機等
を水平に配置して、それらを相互に連結している。しか
しながら、このような構成では、タワー上部の積載重量
が大きいため、それだけタワー自体の剛性を高める必要
があり、それに伴ってタワーを構成する材料の重量も大
きくなる。従って、システムの製作費が比較的高価なも
のになる。[Prior Art] In conventionally known horizontal axis wind power generation systems, the wind turbine rotor, speed increaser, generator, etc. connected to the wind turbine blades are generally mounted horizontally in a nacelle attached to the top of the tower. are arranged and interconnected. However, in such a configuration, since the loaded weight at the top of the tower is large, it is necessary to increase the rigidity of the tower itself, and the weight of the material forming the tower increases accordingly. Therefore, the manufacturing cost of the system is relatively high.
このような問題を解決するため、第３図に示すように、
タワー１上において回転軸３を水平方向に向けて支持さ
れている風車ブレード２の回転を、一対の傘歯車４．５
により鉛直の回転軸６に伝達し、タワー１の基部に増速
機や発電機等の重量の大きい機器７を配置するようにし
た風車が、既に知られている。In order to solve this problem, as shown in Figure 3,
The rotation of the wind turbine blade 2, which is supported on the tower 1 with the rotating shaft 3 oriented horizontally, is controlled by a pair of bevel gears 4.5.
A wind turbine is already known in which wind power is transmitted to a vertical rotating shaft 6, and heavy equipment 7 such as a speed increaser and a generator is disposed at the base of the tower 1.
しかるに、このような風車においては、風車ブレード２
の回転軸３に対して、一対の傘歯車の噛合いに伴うヨー
モーメントが作用し、そのため、通常は風車の回転軸３
をタワー中心からオフセットすることにより、上記付加
的ヨーモーメントを避けているが、この場合、機械的に
釣合っているわけではないので、不安定になるという問
題がある。However, in such a windmill, the windmill blade 2
Yaw moment due to the meshing of a pair of bevel gears acts on the rotating shaft 3 of the wind turbine.
The additional yaw moment is avoided by offsetting the tower from the center of the tower, but in this case there is a problem of instability as it is not mechanically balanced.
［発明が解決しようとする問題点］
本発明の目的は、タワー上部におけるナセル等の積載重
量を軽減することにより、タワーの必要剛性及び重量を
軽減して、システムの経済性を向上させるようにした上
述の風車において、動力伝達に伴う付加的ヨーモーメン
トを小さく抑え、システムの安定な運転状態を保持でき
るようにした風車用動力伝達機構を提供することにある
。[Problems to be Solved by the Invention] An object of the present invention is to reduce the required rigidity and weight of the tower by reducing the loading weight of the nacelle, etc. in the upper part of the tower, thereby improving the economic efficiency of the system. An object of the present invention is to provide a power transmission mechanism for a wind turbine, which suppresses the additional yaw moment accompanying power transmission to a small value and maintains a stable operating state of the system.
［問題点を解決するための手段］
上記目的を達成するため、本発明の風車用動力伝達機構
は、タワーの上端において鉛直軸のまわりに回転可能な
ハウジングに、風車ブシードの回転軸を水平に支持させ
、上記回転軸に取付けた傘歯車に、２個の傘歯車を対向
位置において噛合させ、これらの２個の傘歯車にそれぞ
れ取付けた差動輪をタワーに沿って垂下させ、それらの
下端に差動回転力を一方向回転する一つの出力軸に伝達
する差動遊星増速機構を接続することによって構成され
る。[Means for Solving the Problems] In order to achieve the above object, the power transmission mechanism for a wind turbine of the present invention includes a housing that is rotatable around a vertical axis at the upper end of the tower, and a rotating shaft of the wind turbine bushed is horizontally attached to the housing. Two bevel gears are supported and attached to the rotating shaft, and two bevel gears are meshed at opposing positions, and differential wheels attached to these two bevel gears are made to hang down along the tower, and a bevel gear is attached to the lower end of the gear. It is constructed by connecting a differential planetary speed increase mechanism that transmits differential rotational force to one output shaft that rotates in one direction.
［作 用］
上記構成の風車用動力伝達機構においては、風車ブレー
ドの回転軸の傘歯車及びそれと噛合する２個の傘歯車を
介して、差動軸に方向の異なる回転力が二分して伝えら
れ、それらの回転力が差動遊星増速機構においてｌ木の
出力軸に集合し１発電機、熱発生機器等の負荷が駆動さ
れる。[Function] In the power transmission mechanism for a wind turbine having the above configuration, rotational forces in different directions are transmitted to the differential shaft in two parts through the bevel gear on the rotating shaft of the wind turbine blade and the two bevel gears meshing with the bevel gear. The rotational forces are collected at the output shafts of the differential planetary speed increasing mechanism to drive loads such as a generator and heat generating equipment.
上記差動遊星増速機構においては、差動軸の回転速度が
増速され、その増速に伴って出力軸のトルクが小さくな
るので、ハウジングとタワーとの間に作用する偏向ヨー
モーメントが十分に小さく抑えられ、システムの安定な
運転状態が保持される。In the above-mentioned differential planetary speed increase mechanism, the rotational speed of the differential shaft is increased, and the torque of the output shaft decreases as the speed increases, so that the deflection yaw moment acting between the housing and the tower is sufficient. This maintains a stable operating state of the system.
［実施例］
第１図は本発明に係る動力伝達機構を備えた風車の第１
実施例を示すものである。同図に示す風車においては、
タワー１１の上端に、ハウジング１２をヨー軸受１３に
より鉛直軸のまわりに回転可能に取付け、このハウジン
グ１２に風車ブレード１５の回転軸１Ｂを水平に支持さ
せている。ハウジング１２内においては、上記回転軸Ｉ
Ｂの他端に傘歯車１７を取付け、この傘歯車１７に対し
て上端位置と下端位置において同時に噛合う２個の傘歯
車１９．２０を、それぞれ鉛直で同心状に配置した差動
軸２１，２２の上端に取付けている。上記両差動輪２１
．２２は、一方の差動軸２１が他方の中空の差動軸２２
内を貫通するようにして、相互に回心状に配置すると共
に、タワー１１の上端においてヨー軸受１３により回転
可能に取付けられているハウジング１２の回転の軸線と
も、同心に配置したものである。[Example] Fig. 1 shows a first example of a wind turbine equipped with a power transmission mechanism according to the present invention.
This shows an example. In the wind turbine shown in the same figure,
A housing 12 is attached to the upper end of the tower 11 so as to be rotatable about a vertical axis by a yaw bearing 13, and a rotating shaft 1B of a wind turbine blade 15 is horizontally supported by the housing 12. Inside the housing 12, the rotation axis I
A differential shaft 21 has a bevel gear 17 attached to the other end of B, and two bevel gears 19 and 20 that mesh with the bevel gear 17 simultaneously at the upper end position and the lower end position are arranged vertically and concentrically, respectively. It is attached to the upper end of 22. Both differential wheels 21 above
．． 22, one differential shaft 21 is connected to the other hollow differential shaft 22.
The housings 11 and 12 are arranged so as to pass through the inside of the housing 12 so as to be pivoted with respect to each other, and are also arranged concentrically with the axis of rotation of the housing 12 which is rotatably mounted by a yaw bearing 13 at the upper end of the tower 11.
上記差動輪２１．２２は、タワー１１に沿って垂下させ
、それらの下端には、タワーｌｌ内において、差動遊星
増速機構２５を連結している。この差動遊星増速機構２
５は１回転方向を異にする上記差動軸２１．２２の差動
回転力を、一方向回転する一つの出力軸２７に伝達する
ためのものである。この出力軸２７の回転力は１発電機
、熱発生機器等の負荷２８を駆動するように接続され、
また負荷２８にはそれを制御するための制御ａ２９が接
続されている。The differential wheels 21, 22 are suspended along the tower 11, and a differential planetary speed increase mechanism 25 is connected to their lower ends within the tower 11. This differential planetary speed increasing mechanism 2
Reference numeral 5 is for transmitting the differential rotational force of the differential shafts 21 and 22, which rotate in different directions, to one output shaft 27, which rotates in one direction. The rotational force of this output shaft 27 is connected to drive a load 28 such as a generator or a heat generating device.
Further, a control a29 for controlling the load 28 is connected to the load 28.
上記差動遊星増速機構２５として第１図の実施例に例示
しているものは、差動軸２２の下端に内歯歯車３１を固
定し、また差動軸２１の下端に上記内歯歯車３１と噛合
する複数の遊星歯車３２．・・の回転軸３３を支持させ
、中心において各遊星歯車３２．・・と噛合する太陽歯
車３５を出力軸２７に連結している。In the differential planetary speed increasing mechanism 25 illustrated in the embodiment of FIG. 1, an internal gear 31 is fixed to the lower end of the differential shaft 22, and the internal gear 31 and a plurality of planetary gears 32. The rotating shafts 33 of... are supported, and each planetary gear 32. A sun gear 35 that meshes with the output shaft 27 is connected to the output shaft 27.
第２図に示す第２実施例は、上記差動遊星増速機構２５
の異なる構成例を示すもので、羨動軸２２の下端に内歯
歯車４１を固定し、また差動軸２１の下端に上記内歯歯
車４１と噛合する複数の遊星歯車４２゜・・の回転軸４
３を支持させ、それらの遊星歯車４２、Φ・の各回転軸
４３に固定した遊星小歯車４４と噛合する太陽歯車４５
を出力軸２７に連結している。The second embodiment shown in FIG. 2 has the differential planetary speed increasing mechanism 25
In this example, an internal gear 41 is fixed to the lower end of the sliding shaft 22, and a plurality of planetary gears 42° meshing with the internal gear 41 are fixed to the lower end of the differential shaft 21. axis 4
A sun gear 45 meshes with a planetary small gear 44 fixed to each rotating shaft 43 of the planetary gear 42 and Φ.
is connected to the output shaft 27.
このような構成は、出力軸２７の増速割合を調整するの
に有利なものである。Such a configuration is advantageous for adjusting the speed increase rate of the output shaft 27.
このような構成を有する風車においては、風力エネルギ
ーによって回転する風車ブレード１５の回転軸１Ｂから
５全歯束１７及び傘歯車１９．２０を介して、差動軸２
１．２２に方向の異なる回転力が二分して伝えられ、そ
れらの回転力が差動遊星増速機構２５において１木の出
力軸２７に集合し、発電機、熱発生機器等の負荷２８が
駆動される。In a wind turbine having such a configuration, the differential shaft 2 is connected from the rotating shaft 1B of the wind turbine blade 15 rotated by wind energy through the 5 full tooth set 17 and the bevel gear 19.20.
1.22, the rotational force with different directions is divided into two parts and transmitted, and these rotational forces are collected at the single-wood output shaft 27 in the differential planetary speed increase mechanism 25, and the load 28 such as a generator, heat generating equipment, etc. Driven.
上記傘歯車列及び差動′Ｍ星増速機構２５においては２
回転速度の増速が可能であり、それによってエネルギー
の変換効率を高く維持することができる。また、上記増
速に伴い、出力軸２７のトルクは、風車ブレード１５の
回転軸１６に比べた増速の割合に応じて小さくなる。そ
のトルクは、ハウジング１２とタワー１１との間に偏向
ヨーモーメントとして作用するが、上述のようにして十
分に小さく抑えることができ、それによってヨーの駆動
制御の簡素化、安定維持が可能である。In the bevel gear train and the differential M star speed increasing mechanism 25, 2
It is possible to increase the rotational speed, thereby maintaining high energy conversion efficiency. Further, as the speed increases, the torque of the output shaft 27 becomes smaller in accordance with the rate of speed increase compared to the rotation shaft 16 of the wind turbine blade 15. The torque acts as a deflection yaw moment between the housing 12 and the tower 11, but it can be suppressed to a sufficiently low level as described above, thereby making it possible to simplify yaw drive control and maintain stability. .
［発明の効果］
以上に詳述した木発明の風車用動力伝達機構によれば、
タワー上部における積載重量を軽減するようにした前述
の風車において、動力伝達に伴う付加的ヨーモーメント
を小さく抑え、システムの安定な運転状態を保持するこ
とができる。また、風車ブレードの回転をタワーの上部
から一対の差動軸を介して伝達するようにしているため
、低速で大きなトルクの伝達を行うことが可能であり、
この場合には、剛性の高い長い軸により容易に長距離間
のトルク伝達を行うことができる。[Effect of the invention] According to the wind turbine power transmission mechanism of the wood invention detailed above,
In the above-mentioned wind turbine in which the load weight at the top of the tower is reduced, the additional yaw moment accompanying power transmission can be suppressed to a small level, and the stable operating state of the system can be maintained. In addition, since the rotation of the wind turbine blades is transmitted from the top of the tower via a pair of differential shafts, it is possible to transmit large torque at low speeds.
In this case, torque can be easily transmitted over long distances using a long shaft with high rigidity.
第１図は木発明に係る風車用動力伝達機構の第１実施例
の断面図、第２図は同第２実施例の要部断面図、第３図
は従来例の構成図である。
１１・・タワー、１２・・ハウジング、１５・寺風車ブ
レード、１８・０回転軸、１７、ＩＬ２０・・傘歯車、
２１，２２ ・０差動軸、２５＠φ差動遊星増速機構、
２７ψ・出力軸。FIG. 1 is a sectional view of a first embodiment of a power transmission mechanism for a wind turbine according to the invention, FIG. 2 is a sectional view of a main part of the second embodiment, and FIG. 3 is a configuration diagram of a conventional example. 11. Tower, 12. Housing, 15. Temple windmill blade, 18. 0 rotating shaft, 17. IL20. Bevel gear.
21, 22 ・0 differential shaft, 25@φ differential planetary speed increase mechanism,
27ψ・Output shaft.
Claims (1)
ハウジングに、風車ブレードの回転軸を水平に支持させ
、上記回転軸に取付けた傘歯車に、２個の傘歯車を対向
位置において噛合させ、これらの２個の傘歯車にそれぞ
れ取付けた差動軸をタワーに沿って垂下させ、それらの
下端に差動回転力を一方向回転する一つの出力軸に伝達
する差動遊星増速機構を接続したことを特徴とする風車
用動力伝達機構。1. A rotating shaft of a wind turbine blade is horizontally supported in a housing rotatable around a vertical axis at the upper end of the tower, and two bevel gears are meshed at opposing positions with a bevel gear attached to the rotating shaft. The differential shafts attached to these two bevel gears are suspended along the tower, and a differential planetary speed increase mechanism is connected to their lower ends to transmit the differential rotational force to one output shaft that rotates in one direction. A power transmission mechanism for wind turbines that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61155845A JPS6312887A (en) | 1986-07-02 | 1986-07-02 | Power transmission mechanism for windmill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61155845A JPS6312887A (en) | 1986-07-02 | 1986-07-02 | Power transmission mechanism for windmill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6312887A true JPS6312887A (en) | 1988-01-20 |
| JPH0343469B2 JPH0343469B2 (en) | 1991-07-02 |
Family
ID=15614752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61155845A Granted JPS6312887A (en) | 1986-07-02 | 1986-07-02 | Power transmission mechanism for windmill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6312887A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05970U (en) * | 1991-06-19 | 1993-01-08 | 周 金木 | Wind turbine |
| JP2014228085A (en) * | 2013-05-23 | 2014-12-08 | 大洋プラント株式会社 | Gear device and wind energy utilization device using the same |
| EP3633189A1 (en) * | 2018-10-04 | 2020-04-08 | Southern Taiwan University of Science and Technology | Kinetic energy harvesting mechanism |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595886A (en) * | 1982-07-02 | 1984-01-12 | Mitsubishi Electric Corp | Wind power generating device |
-
1986
- 1986-07-02 JP JP61155845A patent/JPS6312887A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595886A (en) * | 1982-07-02 | 1984-01-12 | Mitsubishi Electric Corp | Wind power generating device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05970U (en) * | 1991-06-19 | 1993-01-08 | 周 金木 | Wind turbine |
| JP2014228085A (en) * | 2013-05-23 | 2014-12-08 | 大洋プラント株式会社 | Gear device and wind energy utilization device using the same |
| EP3633189A1 (en) * | 2018-10-04 | 2020-04-08 | Southern Taiwan University of Science and Technology | Kinetic energy harvesting mechanism |
| US10989167B2 (en) | 2018-10-04 | 2021-04-27 | Southern Taiwan University Of Science And Technology | Kinetic energy harvesting mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0343469B2 (en) | 1991-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |