201038820 六、發明說明： 【發明所屬之技術領域】 本發明係關於風力發電裝置的傾角驅動裝置以及風力 發電裝置。 【先前技術】 習知的用於風力發電裝置的風車係有：風車翼（亦即 ’風車葉片）的傾角角度固定的風車；以及傾角角度可改 變的風車。 習知的用來改變風車翼的傾角角度的機構，係有如專 利文獻1所揭示的將油壓缸中的油壓桿的直線移動轉換成 風車翼之朝軸線的外圍旋轉之機構。此外，也有人提出如 專利文獻2所揭示的這種使用電動操作機令活塞桿朝軸線 方向進行直線移動’利用該移動來使風車翼朝軸線的外圍 旋轉的技術方案。 此外，也有人提出的技術方案係如專利文獻3所揭示 的這種’係在翼迴旋輪的周圍設置齒輪，利用電動馬達來 使得與這個齒輪嚙合的小齒輪旋轉，以使翼迴旋輪旋轉， 進而轉換成風車翼之朝軸線的外圍的旋轉之機構。針對這 種結構，亦有人提出以使用皮帶來取代使用齒輪的方案。 [專利文獻1]日本特開2003-148321號公報 [專利文獻2]日本特開昭63- 124874號公報 [專利文獻3]日本特開2003-56448號公報 201038820 然而，專利文獻1所揭示的這種使用油壓缸的機構者 ，油壓缸的控制油係從通常被配置在機艙內的油壓泵浦經 由主軸、增速機內而供給到轉子頭側。又，專利文獻2所 揭示者，用來傳遞被配置在機艙內的電動操作機的動作之 活塞桿，係被設成必須通過主軸、增速機內。因此，必須 在主軸、增速機內設置油壓配管或活塞桿，這些構件的構 造變得很複雜。 又，風力發電裝置在現地進行組裝的時候，係將原本 分別個體組裝好的機艙與轉子頭予以合體組裝在一起。此 時，係將機艙側的油壓配管與轉子頭側的油壓配管予以連 接。在這種連接作業中，如果有異物混入到油壓配管內的 話，例如會因爲油壓系統的密封性受損等等的因素，而有 導致傾角驅動機構的長期可靠性受減損的可能性。 此外，在進行連接作業中，也會有因漏油而對於周圍 的環境造成影響的虞慮。因此，油壓配管的連接作業必須 非常小心地進行施作。 專利文獻3所揭示的這種齒輪式的傾角驅動機構，設 在迴旋輪上的齒輪與小齒輪係全時地嚙合在一起。在構造 上並無法使潤滑油循環，所以必須塗覆潤滑脂來進行潤滑 〇 一般而言，轉子頭的每一次旋轉中的傾角角度的調整 量很微小，例如：最大也是只有±0.5度以內（普通是在 ±0.1〜0.2度以內），因此齒輪與小齒輪之間的嚙合也僅 止於一個輪齒和一個輪齒之間的嚙合而已。是以，因爲這 -6- 201038820 種微小動作所導致的接觸係集中於局部地方，所以會有因 齒面上的油膜破裂而產生磨耗損傷的虞慮。 一旦安裝在迴旋輪的外圍的齒輪損壞的話，欲更換齒 輪時，必須將風車翼以及轉子頭拆下來。基於這種原因， 在原本設計階段時’嘗試將齒輪的強度設計成較之小齒輪 的強度更強，以資使得損壞都發生在小齒輪這一側，但是 ，關於磨耗損傷的發生時期以及場所等，在設計階段時並 0 不可能預測。 因此，傾角驅動機構的長期可靠性有受減損的可能。 又，在皮帶式結構的情況下，爲了讓皮帶發揮其張力 ，必須將皮帶配置在風車翼的外側，所以會有讓整個系統 趨於大型化的虞慮。此外，皮帶的壽命很短，因此必須頻 繁地進行更換。 因而，如果未充分地進行維修作業的話，傾角驅動機 構的長期可靠性也會有受減損的可能。201038820 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a tilt driving device for a wind power generator and a wind power generating device. [Prior Art] A conventional windmill for a wind power generator includes a windmill in which a wind turbine blade (i.e., a 'windmill blade) has a fixed angle of inclination; and a windmill whose angle of inclination can be changed. A conventional mechanism for changing the inclination angle of a wind turbine blade is a mechanism for converting a linear movement of a hydraulic rod in a hydraulic cylinder into a peripheral rotation of a wind turbine blade as disclosed in Patent Document 1. Further, there has been proposed a technique of using the electric operating machine to linearly move the piston rod in the axial direction as disclosed in Patent Document 2, and using this movement to rotate the wind turbine blade toward the periphery of the axis. In addition, a technical solution proposed by the patent document 3 is that the gear is disposed around the wing revolving wheel, and the electric motor is used to rotate the pinion gear meshing with the gear to rotate the wing revolving wheel. Further, it is converted into a mechanism for rotating the periphery of the wind turbine blade toward the axis. In response to this structure, it has also been proposed to use a leather belt instead of a gear. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2003-14848 (Patent Document 3) Japanese Laid-Open Patent Publication No. 2003-56448 No. 201038820 However, the disclosure of Patent Document 1 In a mechanism using a hydraulic cylinder, the hydraulic oil of the hydraulic cylinder is supplied from the hydraulic pump normally disposed in the nacelle to the rotor head side via the main shaft and the speed increaser. Further, as disclosed in Patent Document 2, the piston rod for transmitting the operation of the electric operating machine disposed in the nacelle is required to pass through the main shaft and the speed increaser. Therefore, hydraulic piping or piston rods must be provided in the main shaft and the speed increaser, and the construction of these members becomes complicated. Moreover, when the wind power generation device is assembled in the field, the nacelle and the rotor head which were originally assembled separately are assembled and assembled. At this time, the hydraulic piping on the nacelle side is connected to the hydraulic piping on the rotor head side. In this connection work, if foreign matter is mixed into the hydraulic piping, for example, the sealing property of the hydraulic system may be impaired, and the long-term reliability of the inclination driving mechanism may be impaired. In addition, there are also concerns about the surrounding environment caused by oil leakage during connection work. Therefore, the connection of the hydraulic piping must be carried out with great care. According to the gear type tilt drive mechanism disclosed in Patent Document 3, the gear provided on the whirling wheel meshes with the pinion gear all the time. In terms of construction, the lubricating oil cannot be circulated, so it is necessary to apply grease for lubrication. Generally, the adjustment of the inclination angle in each rotation of the rotor head is small, for example, the maximum is only within ±0.5 degrees ( Normally within ±0.1 to 0.2 degrees), the meshing between the gear and the pinion also ends only between the engagement of one tooth and one tooth. Therefore, since the contact caused by the small movements of the -6-201038820 is concentrated in a local place, there is a concern that the oil film on the tooth surface is broken and wear is damaged. Once the gear mounted on the periphery of the whirling wheel is damaged, the windmill wing and the rotor head must be removed when the gear is to be replaced. For this reason, at the original design stage, 'try to design the strength of the gear to be stronger than the pinion, so that the damage occurs on the side of the pinion, but the period and location of the wear damage Etc. At the design stage, 0 is impossible to predict. Therefore, the long-term reliability of the tilt drive mechanism may be impaired. Further, in the case of the belt type structure, in order to allow the belt to exert its tension, it is necessary to arrange the belt outside the wind turbine blade, so that the entire system tends to be enlarged. In addition, the life of the belt is very short and must be replaced frequently. Therefore, if the maintenance work is not sufficiently performed, the long-term reliability of the tilt drive mechanism may be impaired.
G 【發明內容】 本發明係有鑒於上述的課題，其目的是要提供：具有 不會對主軸、增速機造成影響的結構並且可防止可靠性受 減損的風力發電裝置的傾角驅動裝置以及風力發電裝置。 爲了達成上述目的，本發明提供下列的手段。 本發明的第1種態樣的風力發電裝置的傾角驅動裝置 ，係具備： 翼根部被安裝成可相對於轉子頭朝翼長方向的外圍轉 201038820 動的風車翼；被設置成其輸出軸係朝前述翼長方向延伸的 電動驅動構件；被固定安裝於前述輸出軸上之朝與前述輸 出軸交叉的方向延伸的拉桿；一連結棒，被配置成朝與前 述輸出軸交叉的方向延伸，且連結著前述風車翼的驅動位 置以及前述拉桿，並且係被安裝成可分別相對於前述風車 翼的驅動位置以及前述拉桿，朝向前述翼長方向的外圍旋 轉。 根據本態樣，當電動驅動構件被作動，輸出軸進行旋 轉的話，拉桿就會以其被安裝在輸出軸上的部分爲中心， 將輸出軸在與翼長方向呈交叉的平面內進行旋轉。換言之 ，拉桿將會以旋轉軸爲中心，以劃出一道圓軌跡的方式進 行移動。 一旦拉桿移動的話，安裝在該拉桿上的連結棒將會在 與翼長方向交叉的平面內進行移動，所以，將會導致連結 棒也在與風車翼的軸線交叉的平面內進行移動。 連結棒移動的話，安裝有該連結棒的風車翼的驅動位 置也會移動，所以風車翼將被朝向翼長方向的外圍旋轉。 因此，就可以調整風車翼的傾角角度。 根據本態樣，電動驅動構件是利用電力來驅動，所以 其電力配線與油壓配管比較之下，係較爲簡單的構造，而 且不會有讓異物混入以及漏油等的風險。此外，並沒有因 微小動作所引起的接觸部分的存在，因此不必考慮磨耗損 傷的問題。此外，並沒有皮帶這種壽命較短的零件的存在 ，因此可以省略頻繁且煩雜的維修作業。 -8 - 201038820 藉由綜合這些因素，可防止傾角驅動裝置的長期可靠 性受到減損。 在上述態樣中’亦可具備：一支承構件，係被安裝在 前述轉子頭上’用來將前述輸出軸的自由端支承成可旋轉 0 因爲是以這種方式具備了：被安裝在轉子頭上之可將 輸出軸的自由端支承成可旋轉的支承構件，因此，輸出軸 0 的其中一端係被電動馬達所支承，另一端係被支承構件所 支承。亦即，輸出軸是兩端都受到支承的兩端支承構造， 因此能夠進行穩定的旋轉。 本發明的第2種態樣的風力發電裝置，係設有：用來 承受風力的複數個風車翼；用來將該風車翼支承成可朝向 前述風車翼的軸線的外圍轉動，並且受前述風車翼所旋轉 驅動的轉子頭；上述第1種態樣的傾角驅動裝置；以及因 前述轉子頭的旋轉而進行發電的發電設備。 〇 根 據本態樣，藉由採用上述第1種態樣的傾角驅動裝 置’可防止傾角驅動裝置的可靠性受減損，因此，可防止 因傾角驅動裝置所導致的整個風力發電裝置的可靠性受減 損。 根據本發明，電動馬達係利用電力來驅動，因此其電 力配線與油壓配管比較之下，具有更簡單的構造，而且又 沒有讓異物混入以及漏油等的風險。此外，沒有因微小動 作所導致的接觸部分的存在，所以無需考慮到磨耗損傷的 問題。再者，也沒有皮帶這種的壽命較短的零件的存在， -9- 201038820 所以可省略掉頻繁且煩雜的維修作業。 綜合這些因素，可防止傾角驅動裝置的長期可靠性受 到減損。 【實施方式】 [發明的最佳實施方式] 茲佐以第1圖〜第4圖來說明本發明之一種實施方式 的風力發電裝置。第1圖係顯示本實施方式的風力發電裝 置1的整體槪略結構的側面圖。 在風力發電裝置1中，係設有：豎立設置在基礎B上 的支柱2;被設置在支柱2的上端的機艙3;被設在機臆 3上，可朝向大致呈水平的軸線的外圍旋轉的轉子頭4; 用來包覆轉子頭4的頭部囊罩5;呈放射狀地安裝在轉子 頭4的旋轉軸線的外圍上的複數個風車翼6 ;因轉子頭4 的旋轉而進行發電的發電設備7。 支柱2係如第1圖所揭示’具有從基礎B往上方（第 1圖的上方）延伸的柱狀結構’例如是將複數個單元在上 下方向相連結的結構。 在支柱2的最上部設有機艙3。如果支柱2是由複數 個單元所構成的話，機艙3是設置在最上部的單元上。 機艙3係如第1圖所揭示’利用主軸8來將轉子頭4 支承成可旋轉，並且在內部收納著可因轉子頭4 (亦即， 主軸8)的旋轉而進行發電的發電設備7。 至於發電設備7係可例舉出設有：可令主軸8的旋轉 -10- 201038820 數増加的增速機；被傳遞來自轉子頭4的旋轉驅動力而進 行發電的發電機；將發電機所發電的電壓轉換成預定的電 壓之變壓器等等。 在轉子頭4上，是在其旋轉軸線的外圍呈放射狀地安 裝複數個例如：3個風車翼6，其周圍則是以頭部囊罩5 加以包覆著。 如此一來，當來自轉子頭4的旋轉軸線方向的風吹抵 0 到風車翼6的話，就可令風車翼6產生可使轉子頭4朝向 旋轉軸線的外圍旋轉的力量，致使轉子頭4被旋轉驅動。 此外，在本實施方式中，雖然是以應用在設有3個風 車翼6的例子來做說明，但是風車翼6的數目並不限定爲 3個，亦可應用在較3個更少的情況或者較3個更多的情 況，不必特別地予以限定。 第2圖係從顯示出1個傾角驅動裝置11的第1圖中 的箭頭X的方向來觀看時的視圖。第3圖係沿著第2圖 Q 的Y-Y剖面線的剖面圖。第4圖係從上風側來觀看第1 圖的轉子頭4時之顯示出傾角驅動裝置11的配置之示意 圖。 在轉子頭4上是以1對1的關係，針對於各風車翼6 都設置一個傾角驅動裝置11，可用來讓風車翼6朝向風 車翼6的軸線中心（軸線）L的外圍旋轉，以改變風車翼 6的傾角角度。 在風車翼6的翼根側係具備基部（翼根部）21，該基 部21是利用迴旋輪軸承23而可自由轉動地被支承於轉子 -11 - 201038820 頭4上。 迴旋輪軸承23是由兩排的滾動式軸承所構成的。此 外，迴旋輪軸承23並不限定爲滾動式軸承，亦可爲滑動 式軸承。 基部21係利用一對驅動板29將迴旋輪軸承23的內 輪25的厚度方向上的兩端部予以夾住而形成的。驅動板 29係呈甜甜圈形狀（圓環狀），被設成較之內輪25更往 內側突出。亦即，驅動板29的內徑係內輪25的內徑以下 。迴旋輪軸承23的外輪27是固定安裝在轉子頭4上》 因爲風車翼6是被固定在迴旋輪軸承23的內輪25, 所以可相對於轉子頭4進行轉動。 轉子頭4上，係在迴旋輪軸承23的轉子旋轉中心側 ’設有略呈半圓形狀的支承板31。在支承板31的大致中 央位置上，設有貫通孔33。 傾角驅動裝置11係具備：減速機14、電動馬達13、 拉桿15、連結桿（連結棒）17。此處，亦可將支承板31 係由與轉子頭4同一個構件來成型（形成）的，或者亦可 係由與轉子頭4不同的構件來形成的，亦可利用螺栓等來 將支承板31固定在轉子頭4上。 電動馬達13與減速機14係構成本發明的電動驅動構 件。電動馬達1 3的輸出是受到減速機1 4的減速而傳遞到 減速機14的輸出軸19。 電動馬達13以及減速機14的輸出軸19係穿過貫通 孔3 3而位在風車翼6這一側，而且其軸線中心〇係在與 -12- 201038820 風車翼6的軸線中心L分開的位置上被配置成與軸線中心 L大致保持平行，並且被固定在支承板31的貫通孔33的 內周側。 電動馬達1 3係利用電力來驅動的，所以其電力配線 與油壓配管比較之下，係較爲簡單的構造。而且不必實施 油壓配管的連接作業，因此不會有讓異物混入以及漏油等 的風險。又，並沒有因微小動作所導致的接觸部分的存在 0 ，因此不必考慮磨耗損傷的問題。此外，並沒有皮帶這種 壽命較短的零件的存在，因此得以省略既頻繁又煩雜的維 修作業。 綜合這些因素，可防止傾角驅動裝置11的長期可靠 性受到減損。 拉桿15以及連結桿17係被設置成：分別朝向與軸線 中心〇大致正交的方向延伸，換言之，係被設置成：朝 向與輸出軸19交叉的方向延伸。亦即，拉桿15以及連結 Q 桿1 7係沿著驅動板29的延伸面來設置。 拉桿15的其中一端係固定安裝在輸出軸19。拉桿15 的另一端（自由端）係藉由插銷35而可互相旋轉地連結 在連結桿17的其中一端。拉桿15係卡合於設在插銷35 的中間部之突起的球面座，可以容許受到彎折。 在一對驅動板2 9之間裝設有連桿銷3 7。在連桿銷3 7 的中間部設有突起的球面座。連結桿17的另一端係卡合 於連桿銷37的球面座，可旋轉以及可傾斜地連結於連桿 銷3 7。這個連桿銷3 7係形成本發明的驅動位置p。 -13- 201038820 輸出軸19的前端（自由端）可 (支承構件）39。軸承39被安裝在I 的托架41上。 輸出軸19的其中一端被電動馬達 係被軸承3 9所支承。亦即，輸出軸1 的兩端支承結構，因此可進行穩定的: 對應於各風車翼6而設的傾角驅 圖所揭示，可配置在轉子頭4的軸線 主軸8的外圍。因此，可以設置在與 交叉的平面上。 接下來，槪略地說明由上述的結 裝置1的發電方法。 在風力發電裝置1中，來自於轉 向的風吹抵到風車翼6時的風力將會 4朝旋轉軸線的外圍旋轉的動力。 這種轉子頭4的旋轉將會經由主 備7，在發電設備7處，被進行發電 對象所需的電力例如：頻率爲5 0 Η z每 此處，至少在進行發電的期間， 作用到風車翼6上，可適當地讓機艙 以使得轉子頭4朝向上風方向。 接下來，說明要如何以傾角驅動 翼6的傾角角度。 首先，使安裝在轉子頭4上的電 旋轉地被支承於軸承 [立設在支承板31上 ΐ 13所支承，另一端 9係兩端都受到支承 旋轉。 動裝置1 1係如第4 中心的外圍，亦即， 轉子頭4的軸線方向 構所組成的風力發電 子頭4的旋轉軸線方 被轉換成致使轉子頭 軸8而傳遞到發電設 成對應於電力的供給 艺60Hz的交流電。 爲了要讓風力有效地 3在水平面上旋轉， 裝置1 1來控制風車 動馬達1 3作動的話 -14- 201038820 ’輸出軸19就會旋轉。 輸出軸19旋轉的話，拉桿15將會以輸出軸19的軸 線中心0爲中心’沿著驅動板29的延伸平面進行旋轉。 此時’用來連結拉桿15以及連結桿17的插銷的軸線中心 P1將會以第2圖所揭示的軸線中心〇爲中心，在軌跡K i 上進行移動。亦即’軸線中心P1將會以畫圓的方式進行 移動。 ◎ 拉桿1 5以及連結桿1 7的連結部也就是軸線中心p i 進行移動的話’連結桿17的其中一端將會在與風車翼的 軸線交叉的平面內進行移動，因此將導致原本就卡合於連 桿銷37的連結桿17的另一端也會沿著驅動板29的延伸 平面進行移動。 連結桿17的另一端移動的話’連結桿17的移動將會 經由連桿銷37而有時候將推動驅動板29,有時候將拉動 驅動板29 ’因此驅動板29將會進行移動。此時，驅動位 ◎ 置P係沿著軌跡K2進行移動。 驅動板29的驅動位置P移動的話，與驅動板29構成 一體的風車翼6將會朝軸線中心◦的外圍被旋轉。因此 ，就可以調整風車翼的傾角角度。 根據本實施方式’例如：驅動位置P位於第2圖所揭 示的C點位置時’風車翼6係成負傾角狀態（fine state; 亦即’傾角角度趨近-9 0度的狀態），位於A點時，風車 翼6係成順槳（feathering )狀態。 驅動位置P位於A點時，軸線中心p 1係位於b點， -15- 201038820 另外，驅動位置P位於C點時，軸線中心P丨係位於D點 〇 此時’風車翼6的傾角角度的調整範圍，亦即驅動板 29可旋轉的角度ALC係大致爲95度。拉桿15可旋轉的 角度BOD係大致爲180度。 係以能夠確保角度AOC大致爲95度的方式，來選定 軸線中心0的位置、拉桿的長度以及連結桿17的長 度。 此外’本發明並不限定爲上述的實施方式，只要是不 脫離本發明的要旨的範圍內，亦可作適當的改變。 【圖式簡單說明】 第1圖是顯示本發明的第1實施方式的風力發電裝置 的整體槪略結構的側面圖。 第2圖是從顯示本發明的第1實施方式的傾角驅動裝 置之第1圖中的X箭頭方向觀察時的視圖。 第3圖是沿著第2圖的Y - Y線的剖面圖。 第4圖是從上風側來觀看本發明的第1實施方式的轉 子頭4時之顯示出傾角驅動裝置的配置之示意圖。 【主要元件符號說明】 1 :風力發電裝置 4 :轉子頭 6 :風車翼 -16- 201038820 7 :發電設備 1 1 :傾角驅動裝置 1 3 :電動馬達 1 4 :減速機 1 5 :拉桿 17 :連結桿 19 :輸出軸The present invention has been made in view of the above-described problems, and an object thereof is to provide a tilt driving device and a wind power device for a wind power generator having a structure that does not affect the main shaft and the speed increaser and which can prevent loss of reliability. Power generation unit. In order to achieve the above object, the present invention provides the following means. A tilt driving device for a wind turbine generator according to a first aspect of the present invention includes: a wind turbine blade in which a blade root portion is attached to a periphery of a rotor head in a direction of a blade length; 201038820; An electric drive member extending in the longitudinal direction of the blade; a tie rod fixedly attached to the output shaft and extending in a direction intersecting the output shaft; and a connecting rod arranged to extend in a direction crossing the output shaft, and The driving position of the wind turbine blade and the pull rod are coupled to each other so as to be rotatable relative to the driving position of the wind turbine blade and the rod, respectively, toward the periphery of the wing length direction. According to this aspect, when the electric drive member is actuated and the output shaft is rotated, the pull rod is rotated about a portion of the output shaft that is mounted on the output shaft, and the output shaft is rotated in a plane intersecting the wing length direction. In other words, the lever will move around the axis of rotation and draw a circular path. Once the tie rod is moved, the connecting rod mounted on the tie rod will move in a plane that intersects the length of the wing, so that the connecting rod will also move in a plane that intersects the axis of the windmill wing. When the connecting rod moves, the driving position of the wind turbine blade to which the connecting rod is attached also moves, so that the wind turbine blade is rotated toward the outer periphery in the blade length direction. Therefore, the inclination angle of the wind turbine blade can be adjusted. According to this aspect, since the electric drive member is driven by electric power, the power wiring is simpler in comparison with the hydraulic piping, and there is no risk of foreign matter being mixed in and oil leakage. In addition, there is no contact portion due to minute movements, so it is not necessary to consider the problem of wear and tear. In addition, there is no such a short-lived part of the belt, so frequent and troublesome maintenance work can be omitted. -8 - 201038820 By combining these factors, the long-term reliability of the tilt drive can be prevented from being impaired. In the above aspect, 'there may also be: a support member mounted on the rotor head' for supporting the free end of the output shaft to be rotatable 0 because it is provided in this manner: mounted on the rotor head The free end of the output shaft can be supported as a rotatable support member. Therefore, one end of the output shaft 0 is supported by the electric motor and the other end is supported by the support member. That is, the output shaft is a two-end support structure in which both ends are supported, so that stable rotation can be performed. A wind power generator according to a second aspect of the present invention includes: a plurality of wind turbine blades for receiving wind power; and the wind turbine blades for supporting the wind turbine blades to be rotatable toward an outer circumference of the axis of the wind turbine blade, and being subjected to the windmill a rotor head that is rotationally driven by a wing; an inclination driving device of the first aspect; and a power generating device that generates electric power by rotation of the rotor head. According to the aspect of the invention, the inclination driving device of the first aspect described above can prevent the reliability of the inclination driving device from being impaired, thereby preventing the reliability of the entire wind power generation device from being impaired due to the inclination driving device. . According to the present invention, since the electric motor is driven by electric power, the electric wiring has a simpler structure as compared with the hydraulic piping, and there is no risk of foreign matter being mixed in and oil leakage. In addition, there is no contact portion due to minute movements, so there is no need to consider the problem of wear damage. Furthermore, there is no such a short-lived part of the belt, -9-201038820, so frequent and complicated maintenance work can be omitted. Combining these factors prevents the long-term reliability of the tilt drive from being impaired. [Embodiment] BEST MODE FOR CARRYING OUT THE INVENTION A wind power generator according to an embodiment of the present invention will be described with reference to Figs. 1 to 4 . Fig. 1 is a side view showing the overall schematic configuration of the wind power generator 1 of the present embodiment. In the wind power generator 1, there are provided: a strut 2 that is erected on the foundation B; a nacelle 3 that is disposed at an upper end of the strut 2; and is disposed on the casing 3 to be rotatable toward a periphery of a substantially horizontal axis a rotor head 4; a head cover 5 for covering the rotor head 4; a plurality of wind turbine blades 6 radially mounted on the periphery of the rotation axis of the rotor head 4; generating electricity due to the rotation of the rotor head 4. Power generation equipment 7. The pillar 2 is a structure having a columnar structure extending upward from the base B (upward in Fig. 1) as shown in Fig. 1, for example, a structure in which a plurality of cells are connected in the up-down direction. A nacelle 3 is provided at the uppermost portion of the strut 2. If the strut 2 is composed of a plurality of units, the nacelle 3 is placed on the uppermost unit. The nacelle 3 is rotatably supported by the main shaft 8 as shown in Fig. 1, and a power generating device 7 capable of generating electric power by the rotation of the rotor head 4 (i.e., the main shaft 8) is housed therein. The power generation device 7 is exemplified by a speed increaser that can increase the number of revolutions of the main shaft 8 - 201038820; a generator that transmits the rotational driving force from the rotor head 4 to generate electricity; A transformer that generates a voltage that is converted into a predetermined voltage, and the like. On the rotor head 4, a plurality of, for example, three wind turbine blades 6 are radially mounted on the periphery of the rotation axis thereof, and the periphery thereof is covered with a head capsule 5. In this way, when the wind from the direction of the rotation axis of the rotor head 4 is blown to the wind turbine blade 6, the wind turbine blade 6 can generate a force for rotating the rotor head 4 toward the periphery of the rotation axis, so that the rotor head 4 is rotated. drive. Further, in the present embodiment, the description is given to an example in which three wind turbine blades 6 are provided. However, the number of the wind turbine blades 6 is not limited to three, and may be applied to less than three. Or more than three, it is not necessary to specifically limit it. Fig. 2 is a view when viewed from the direction of the arrow X in the first diagram of the one tilt driving device 11. Fig. 3 is a cross-sectional view taken along line Y-Y of Fig. 2Q. Fig. 4 is a schematic view showing the arrangement of the tilt driving device 11 when the rotor head 4 of Fig. 1 is viewed from the windward side. In the relationship of the rotor head 4 in a one-to-one relationship, an inclination driving device 11 is provided for each of the wind turbine blades 6, which can be used to rotate the wind turbine blade 6 toward the periphery of the axis center (axis) L of the wind turbine blade 6 to change The angle of inclination of the windmill wing 6. A base portion (wing root portion) 21 is provided on the wing root side of the wind turbine blade 6, and the base portion 21 is rotatably supported by the rotor head 11 - 201038820 on the head 4 by the turning wheel bearing 23. The gyro wheel bearing 23 is composed of two rows of rolling bearings. Further, the turning wheel bearing 23 is not limited to a rolling bearing, and may be a sliding bearing. The base portion 21 is formed by sandwiching both end portions in the thickness direction of the inner ring 25 of the swirl wheel bearing 23 by a pair of drive plates 29. The drive plate 29 has a donut shape (annular shape) and is disposed to protrude further inward than the inner ring 25. That is, the inner diameter of the drive plate 29 is below the inner diameter of the inner ring 25. The outer wheel 27 of the gyro wheel bearing 23 is fixedly mounted on the rotor head 4. Since the wind turbine blade 6 is fixed to the inner wheel 25 of the slewing wheel bearing 23, it is rotatable relative to the rotor head 4. The rotor head 4 is provided with a support plate 31 having a substantially semicircular shape on the rotor rotation center side of the swirl wheel bearing 23. A through hole 33 is provided at a substantially central position of the support plate 31. The tilt driving device 11 includes a speed reducer 14, an electric motor 13, a tie rod 15, and a connecting rod (connecting rod) 17. Here, the support plate 31 may be formed (formed) by the same member as the rotor head 4, or may be formed of a member different from the rotor head 4, and the support plate may be bolted or the like. 31 is fixed to the rotor head 4. The electric motor 13 and the speed reducer 14 constitute the electric drive member of the present invention. The output of the electric motor 13 is transmitted to the output shaft 19 of the reduction gear 14 by the deceleration of the speed reducer 14. The electric motor 13 and the output shaft 19 of the speed reducer 14 pass through the through hole 33 and are positioned on the side of the wind turbine blade 6, and the center of the axis thereof is separated from the center L of the axis of the wind turbine blade 6 of -12-201038820. The upper portion is disposed substantially parallel to the axis center L, and is fixed to the inner peripheral side of the through hole 33 of the support plate 31. Since the electric motor 13 is driven by electric power, the electric power wiring is relatively simple in comparison with the hydraulic piping. Moreover, it is not necessary to carry out the connection work of the hydraulic piping, so there is no risk of foreign matter being mixed in and oil leakage. Moreover, there is no existence of a contact portion due to minute movements, so it is not necessary to consider the problem of wear damage. In addition, there is no such a short-lived part of the belt, so that frequent and complicated maintenance work can be omitted. By combining these factors, the long-term reliability of the tilt driving device 11 can be prevented from being impaired. The tie rod 15 and the connecting rod 17 are provided so as to extend in a direction substantially orthogonal to the center 〇 of the axis, in other words, to extend in a direction crossing the output shaft 19. That is, the tie rod 15 and the connecting Q-bar 17 are disposed along the extended surface of the drive plate 29. One end of the tie rod 15 is fixedly mounted to the output shaft 19. The other end (free end) of the tie rod 15 is rotatably coupled to one end of the coupling rod 17 by a bolt 35. The tie rod 15 is engaged with a spherical seat provided in a projection of the intermediate portion of the plug 35, and is allowed to be bent. A link pin 37 is mounted between a pair of drive plates 29. A convex spherical seat is provided at an intermediate portion of the link pin 37. The other end of the connecting rod 17 is engaged with the spherical seat of the link pin 37, and is rotatably and slantably coupled to the link pin 37. This link pin 37 forms the drive position p of the present invention. -13- 201038820 The front end (free end) of the output shaft 19 is (support member) 39. The bearing 39 is mounted on the bracket 41 of the I. One end of the output shaft 19 is supported by a bearing 39 by an electric motor. That is, the both ends of the output shaft 1 support structure, and thus can be stabilized: the inclination of the main shaft 8 of the rotor head 4 can be disposed on the periphery of the main axis 8 of the rotor head 4 as disclosed by the inclination of each of the wind turbine blades 6. Therefore, it can be placed on the plane intersecting with . Next, the power generation method by the above-described junction device 1 will be briefly described. In the wind power generator 1, the wind from the wind blown by the turning wind to the wind turbine blade 6 will rotate 4 toward the periphery of the rotation axis. The rotation of the rotor head 4 will be via the main unit 7, and the power required to generate the power generation object at the power generating device 7 is, for example, a frequency of 50 Η z per place, at least during power generation, acting on the windmill. On the wing 6, the nacelle can be suitably placed such that the rotor head 4 faces the upwind direction. Next, how the angle of inclination of the wing 6 is to be driven at an inclination angle will be explained. First, the electric motor mounted on the rotor head 4 is rotatably supported by the bearing [standing on the support plate 31 and supported by the crucible 13 and the other end 9 is supported and rotated at both ends. The moving device 11 is connected to the periphery of the fourth center, that is, the axis of rotation of the wind power generating head 4 composed of the axial direction of the rotor head 4 is converted so that the rotor head shaft 8 is transmitted to the power generation to correspond to The power supply is 60 Hz AC. In order to allow the wind to effectively rotate 3 on the horizontal plane, the device 1 1 controls the wind turbine motor 13 to operate -14-201038820 'The output shaft 19 rotates. When the output shaft 19 is rotated, the tie rod 15 will rotate along the plane of extension of the drive plate 29 centering on the center 0 of the axis of the output shaft 19. At this time, the axis center P1 of the latch for connecting the tie rod 15 and the connecting rod 17 will move on the track K i centering on the axis center 揭示 disclosed in Fig. 2 . That is, the 'axis center P1' will move in a circular manner. ◎ When the connecting portion of the tie rod 1 5 and the connecting rod 17 is moved by the center pi of the axis, the one end of the connecting rod 17 will move in a plane intersecting the axis of the wind turbine blade, thus causing the original engagement The other end of the link rod 17 of the link pin 37 also moves along the plane of extension of the drive plate 29. When the other end of the connecting rod 17 is moved, the movement of the connecting rod 17 will sometimes push the driving plate 29 via the link pin 37, and sometimes the driving plate 29 will be pulled so that the driving plate 29 will move. At this time, the drive position ◎ is set to move along the track K2. When the drive position P of the drive plate 29 is moved, the wind turbine blade 6 integrally formed with the drive plate 29 is rotated toward the periphery of the center of the axis. Therefore, the angle of inclination of the windmill wing can be adjusted. According to the present embodiment, for example, when the driving position P is located at the point C at the position shown in FIG. 2, the wind turbine blade 6 is in a negative tilt state (fine state; that is, a state in which the inclination angle approaches -9 0 degrees). At point A, the windmill blade 6 is in a feathering state. When the driving position P is at point A, the center of the axis p 1 is located at point b, -15-201038820. In addition, when the driving position P is at point C, the center of the axis P is located at point D, and the angle of inclination of the windmill blade 6 is The adjustment range, that is, the angle ALC at which the drive plate 29 is rotatable is approximately 95 degrees. The angle at which the drawbar 15 can rotate is approximately 180 degrees. The position of the center 0 of the axis, the length of the tie rod, and the length of the tie rod 17 are selected in such a manner as to ensure that the angle AOC is approximately 95 degrees. The present invention is not limited to the above-described embodiments, and may be appropriately modified as long as it does not depart from the gist of the invention. [Brief Description of the Drawings] Fig. 1 is a side view showing the overall schematic configuration of a wind turbine generator according to a first embodiment of the present invention. Fig. 2 is a view as seen from the direction of the X arrow in the first view of the inclination driving device according to the first embodiment of the present invention. Fig. 3 is a cross-sectional view taken along line Y - Y of Fig. 2. Fig. 4 is a schematic view showing the arrangement of the tilt driving device when the rotor head 4 of the first embodiment of the present invention is viewed from the windward side. [Description of main component symbols] 1 : Wind turbine generator 4: Rotor head 6: Wind turbine wing-16- 201038820 7 : Power generation equipment 1 1 : Inclination drive unit 1 3 : Electric motor 1 4 : Reducer 1 5 : Pull rod 17 : Connection Rod 19: output shaft
21 :基部（翼根部） 2 3 :迴旋輪軸承 25 :內輪 27 :外輪 2 9 :驅動板 3 1 :支承板 3 3 :貫通孔 35 :插銷 37 :連桿銷 3 9 :軸承（支承構件） L :風車翼6的軸線中心 0 :輸出軸1 9的軸線中心 P :驅動位置 -17-21: base (wing root) 2 3 : gyro wheel bearing 25: inner wheel 27: outer wheel 2 9 : drive plate 3 1 : support plate 3 3 : through hole 35 : pin 37 : link pin 3 9 : bearing (support member L: axis center of windmill wing 6: axis center of output shaft 1 9 P: drive position -17-