WO2011147291A1 - Centrifugal variable pitch hub for wind motor - Google Patents

Centrifugal variable pitch hub for wind motor Download PDF

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Publication number
WO2011147291A1
WO2011147291A1 PCT/CN2011/074482 CN2011074482W WO2011147291A1 WO 2011147291 A1 WO2011147291 A1 WO 2011147291A1 CN 2011074482 W CN2011074482 W CN 2011074482W WO 2011147291 A1 WO2011147291 A1 WO 2011147291A1
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WO
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Prior art keywords
blade
hub
hub body
centrifugal
fixed
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Application number
PCT/CN2011/074482
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French (fr)
Chinese (zh)
Inventor
徐学根
俞铠
何国荣
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浙江华鹰风电设备有限公司
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Publication of WO2011147291A1 publication Critical patent/WO2011147291A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/77—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism driven or triggered by centrifugal forces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/79—Bearing, support or actuation arrangements therefor
    • 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

Definitions

  • the present invention relates to a wind power generator, and more particularly to a generator for a centrifugal pitch hub.
  • the pitch technology has developed into an industry due to stable output, strong wind resistance and high power generation efficiency, and the wind turbine hub is a key part of the variable pitch wind turbine mechanism.
  • Many wheel hubs are not very simple in their design. In the application, there are certain deficiencies in the pitch function, and there is no great use of wind power. .
  • An object of the present invention is to provide a wind turbine centrifugal pitch hub which is not only simple and reliable, but also has an automatic conditional pitch angle according to the magnitude of centrifugal force in order to solve the above-mentioned deficiencies.
  • the centrifugal generator centrifugal propeller hub designed by the present invention mainly comprises a hub body and a blade connecting shaft, and a motor shaft is arranged at the center of the hub body, and a fan-shaped connecting shaft is arranged on the hub body, and the wind is connected.
  • the center line of the blade connecting shaft is tangent to the circle centered at the center of the hub body, and one end of the blade connecting shaft is connected to the hub body through a deep groove ball bearing and a round nut. It can rotate freely, so that the centrifugal force and the rotation direction are basically kept in the same direction, so that the centrifugal force is more obvious to the rotation, and the deep groove ball bearing is fixed by the gland.
  • the other end of the blade connecting shaft is a fixed end of the blade, and the centrifugal hammer is fixed on the back of the fixed end of the blade.
  • the shape of the centrifugal hammer is a '7' shape, wherein the side of the '7' shape and the back of the fixed end of the blade It is fixed by bolts and the other side is bent toward the fixed end side of the blade. Because the centrifugal hammer has a certain angle with the fixed end of the blade, in the normal operation, the centrifugal hammer adjusts the blade and the windward surface to the optimal state, the pitching effect is obvious, the stability is good, and the hub cover is arranged on the hub body. To protect the internal structure of the hub body.
  • the centrifugal propeller wheel hub of the wind power generator obtained by the invention has reasonable structure design, good stability, obvious pitching effect, and the vane can be freely rotated, so that the centrifugal force and the rotating direction are maintained in a uniform direction, so that the centrifugal force acts more on the rotation.
  • the centrifugal force generated by the centrifugal hammer controls the windward angle of the wind blade, and the wind power is utilized to make the small and medium variable pitch wind turbine realize the pitch function.
  • Figure 1 is a structural view of the present invention
  • Figure 2 is a cross-sectional view of the present invention
  • Figure 3 is a front elevational view of the present invention.
  • Figure 4 is a left side view of the present invention
  • FIG. 1 it mainly comprises a hub body 1 and a blade connecting shaft 2, and a motor shaft 4 is arranged at the center of the hub body 1, and a fan-shaped connecting shaft 2 is arranged annularly on the hub body 1, and the center of the blade connects the shaft 2
  • the line is tangent to the center of the hub body 1 at the center of the hub, and one end of the blade connecting shaft 2 is connected to the hub body through the deep groove ball bearing 5 and the round nut 6. It can rotate freely, so that the centrifugal force and the rotation direction are basically kept in the same direction, so that the centrifugal force is more obvious to the rotation.
  • the deep groove ball bearing 5 is fixed by the gland 9, as shown in Fig. 2.
  • the other end of the blade connecting shaft 2 is a fixed end 8 of the blade, and the centrifugal hammer 3 is fixed on the back of the fixed end 8 of the blade.
  • the shape of the centrifugal hammer is a '7' shape, wherein one side of the '7' shape is The back surface of the fixed blade end 8 is fixed by bolts, and the other side is bent toward the fixed end 8 of the blade.
  • the centrifugal hammer 3 adjusts the wind blade and the windward surface to the optimum state, the pitching effect is obvious, and the stability is good, and the hub cover 7 is disposed on the hub body 1, as shown in FIG. 3, to protect the hub body. Internal structure.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

A centrifugal variable pitch hub for wind motor includes a hub body (1) arranged with a motor shaft (4) at its center, blade-connecting shafts (2) evenly distributed around the outer circumference of the hub body, etc.. The central line of the blade-connecting shaft is tangential to a circle which takes the center of the hub body as its center. One end of the blade-connecting shaft is fixed on the hub body through a deep groove ball bearing (5) and a round nut(6), and the other end is a blade-fixing end (8) with a centrifugal hammer(3) fixed at its back. The hub has reasonable structure design, good stability and remarkable pitch variation effect.

Description

风力发电机离心变桨轮毂  Wind turbine centrifugal pitch wheel 技术领域Technical field
本发明涉及一种风力发电机，特别是一种离心变桨轮毂的发电机。  The present invention relates to a wind power generator, and more particularly to a generator for a centrifugal pitch hub.
背景技术Background technique
现有的风力发电机中，其变桨距技术由于输出稳定、抗大风能力强，发电效率高，已经发展成为一个行业，而风力发电机轮毂又是变桨距风力发电机机构的关键部分，很多轮毂在其结构上的设计不是很简易，在应用中对变桨功能存在一定的不足，没有很大的利用风力效果 。 Among the existing wind turbines, the pitch technology has developed into an industry due to stable output, strong wind resistance and high power generation efficiency, and the wind turbine hub is a key part of the variable pitch wind turbine mechanism. Many wheel hubs are not very simple in their design. In the application, there are certain deficiencies in the pitch function, and there is no great use of wind power. .
技术问题technical problem
本发明的目的是为了解决上述技术的不足而提供一种不但简易可靠，而且根据离心力的大小，自动条件桨距角的风力发电机离心变桨轮毂。 SUMMARY OF THE INVENTION An object of the present invention is to provide a wind turbine centrifugal pitch hub which is not only simple and reliable, but also has an automatic conditional pitch angle according to the magnitude of centrifugal force in order to solve the above-mentioned deficiencies.
技术解决方案Technical solution
为了达到上述目的，本发明所设计的风力发电机离心变桨轮毂，它主要包括轮毂体、风叶连接轴，在轮毂体中心设置电机轴，在轮毂体上环形均布风叶连接轴，风叶连接轴的中心线与轮毂体中心为圆心的圆相切，风叶连接轴的一端是通过深沟球轴承和圆螺母连接在轮毂体上， 可以自由旋转，这样离心力与旋转方向基本保持在一致的方向上，使离心力对旋转作用更明显，深沟球轴承是由压盖固定， 风叶连接轴的另一端是风叶固定端，在风叶固定端的背面固定离心锤，所述的离心锤的形状为'7'字型，其中'7'字形的一边与风叶固定端的背面通过螺栓固定，另一边向风叶固定端侧弯折。由于离心锤与风叶固定端存在一定的角度，使得在正常运作中，离心锤使风叶与迎风面调整到最佳状态，变桨效果明显，稳定性好，同时在轮毂体上设置轮毂罩，以保护轮毂体内部结构。 In order to achieve the above object, the centrifugal generator centrifugal propeller hub designed by the present invention mainly comprises a hub body and a blade connecting shaft, and a motor shaft is arranged at the center of the hub body, and a fan-shaped connecting shaft is arranged on the hub body, and the wind is connected. The center line of the blade connecting shaft is tangent to the circle centered at the center of the hub body, and one end of the blade connecting shaft is connected to the hub body through a deep groove ball bearing and a round nut. It can rotate freely, so that the centrifugal force and the rotation direction are basically kept in the same direction, so that the centrifugal force is more obvious to the rotation, and the deep groove ball bearing is fixed by the gland. The other end of the blade connecting shaft is a fixed end of the blade, and the centrifugal hammer is fixed on the back of the fixed end of the blade. The shape of the centrifugal hammer is a '7' shape, wherein the side of the '7' shape and the back of the fixed end of the blade It is fixed by bolts and the other side is bent toward the fixed end side of the blade. Because the centrifugal hammer has a certain angle with the fixed end of the blade, in the normal operation, the centrifugal hammer adjusts the blade and the windward surface to the optimal state, the pitching effect is obvious, the stability is good, and the hub cover is arranged on the hub body. To protect the internal structure of the hub body.
有益效果Beneficial effect
本发明所得到的风力发电机离心变桨轮毂，主体结构设计合理，稳定性好，变桨效果明显，风叶可以自由旋转，使离心力与旋转方向保持在一致的方向，使离心力对旋转作用更加明显，通过风力发电机自身旋转时，离心锤所产生的离心力来控制风叶的迎风角度，最大利用了风力，使得中小型变桨距风力发电机实现变桨功能。 The centrifugal propeller wheel hub of the wind power generator obtained by the invention has reasonable structure design, good stability, obvious pitching effect, and the vane can be freely rotated, so that the centrifugal force and the rotating direction are maintained in a uniform direction, so that the centrifugal force acts more on the rotation. Obviously, when the wind turbine itself rotates, the centrifugal force generated by the centrifugal hammer controls the windward angle of the wind blade, and the wind power is utilized to make the small and medium variable pitch wind turbine realize the pitch function.
附图说明DRAWINGS
图1是本发明的结构图；  Figure 1 is a structural view of the present invention;
图2是本发明的剖视图；  Figure 2 is a cross-sectional view of the present invention;
图3是本发明的主视图；  Figure 3 is a front elevational view of the present invention;
图4是本发明的左视图  Figure 4 is a left side view of the present invention
1 、轮毂体；2 、风叶连接轴； 3 、离心锤； 4 、电机轴（轮毂旋转中心）； 5 、深沟球轴承； 6 、圆螺母； 7 、轮毂罩； 8 、风叶固定端； 9 、压盖。 1, the hub body; 2, the blade connection shaft; 3, the centrifugal hammer; 4, the motor shaft (wheel hub rotation center); 5, deep groove ball bearings; 6, round nut; 7, hubcap; 8, fixed blade end; 9, gland.
本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION
下面通过实施例结合附图对本发明作进一步的描述。  The invention is further described below by way of embodiments with reference to the accompanying drawings.
实施例1：  Example 1:
如图1所示，它主要包括轮毂体1、风叶连接轴2，在轮毂体1中心设置电机轴4，在轮毂体1上环形均布风叶连接轴2，风叶连接轴2的中心线与轮毂体1中心为圆心的圆相切，风叶连接轴2的一端是通过深沟球轴承5和圆螺母6连接在轮毂体上， 可以自由旋转，这样离心力与旋转方向基本保持在一致的方向上，使离心力对旋转作用更明显，深沟球轴承 5 是由压盖 9 固定，如图 2 所示， 风叶连接轴2的另一端是风叶固定端8，在风叶固定端8的背面固定离心锤3，所述的离心锤的形状为'7'字型，其中'7'字形的一边与风叶固定端8的背面通过螺栓固定，另一边向风叶固定端8侧弯折。在正常运作中，离心锤3使风叶与迎风面调整到最佳状态，变桨效果明显，稳定性好，同时在轮毂体1上设置轮毂罩7，如图3所示，以保护轮毂体内部结构。 As shown in FIG. 1, it mainly comprises a hub body 1 and a blade connecting shaft 2, and a motor shaft 4 is arranged at the center of the hub body 1, and a fan-shaped connecting shaft 2 is arranged annularly on the hub body 1, and the center of the blade connects the shaft 2 The line is tangent to the center of the hub body 1 at the center of the hub, and one end of the blade connecting shaft 2 is connected to the hub body through the deep groove ball bearing 5 and the round nut 6. It can rotate freely, so that the centrifugal force and the rotation direction are basically kept in the same direction, so that the centrifugal force is more obvious to the rotation. The deep groove ball bearing 5 is fixed by the gland 9, as shown in Fig. 2. The other end of the blade connecting shaft 2 is a fixed end 8 of the blade, and the centrifugal hammer 3 is fixed on the back of the fixed end 8 of the blade. The shape of the centrifugal hammer is a '7' shape, wherein one side of the '7' shape is The back surface of the fixed blade end 8 is fixed by bolts, and the other side is bent toward the fixed end 8 of the blade. In normal operation, the centrifugal hammer 3 adjusts the wind blade and the windward surface to the optimum state, the pitching effect is obvious, and the stability is good, and the hub cover 7 is disposed on the hub body 1, as shown in FIG. 3, to protect the hub body. Internal structure.

Claims (3)

  1. 一种风力发电机离心变桨轮毂，它主要包括轮毂体（1）、风叶连接轴（2），在轮毂体（1）中心设置的电机轴（4），其特征是所述的轮毂体（1）上环形均布风叶连接轴（2），风叶连接轴（2）的中心线与以轮毂体（1）中心为圆心的圆相切，风叶连接轴的一端是通过深沟球轴承（5）与圆螺母（6）固定在轮毂体（1）上，深沟球轴承（5）是由压盖（9）来固定，风叶连接轴（2）的另一端是风叶固定端（8），在风叶固定端（8）的背面固定离心锤（3），离心锤（3）的形状为“7”形。
    A wind power generator centrifugal pitch hub mainly comprises a hub body (1), a blade connecting shaft (2), a motor shaft (4) disposed at a center of the hub body (1), characterized in that the hub body is (1) The upper annular uniform blade connecting shaft (2), the center line of the blade connecting shaft (2) is tangent to the circle centered on the center of the hub body (1), and one end of the blade connecting shaft passes through the deep groove The ball bearing (5) and the round nut (6) are fixed to the hub body (1), the deep groove ball bearing (5) is fixed by the gland (9), and the other end of the blade connecting shaft (2) is the fan blade The fixed end (8) fixes the centrifugal hammer (3) on the back side of the fixed end of the blade (8), and the shape of the centrifugal hammer (3) is "7" shape.
  2. 根据权利要求1所述的风力发电机离心变桨轮毂，其特征是所述的“7”形离心锤（3）其一边与风叶固定端（8）固定，另一边向风叶固定端（8）侧弯折。A centrifugal generator centrifugal pitch hub according to claim 1, wherein said "7" shaped centrifugal hammer (3) has one side fixed to the fixed end of the blade (8) and the other side fixed to the fixed end of the blade ( 8) Side bends.
  3. 根据权利要求1所述的风力发电机离心变桨轮毂，其特征是所述的轮毂体（1）上设置轮毂罩（7）。The wind power generator centrifugal pitch hub according to claim 1, characterized in that the hub body (1) is provided with a hub cover (7).
PCT/CN2011/074482 2010-05-24 2011-05-22 Centrifugal variable pitch hub for wind motor WO2011147291A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010180585A CN101852168A (en) 2010-05-24 2010-05-24 Centrifugal variable paddle hub of windmill generator
CN201010180585.1 2010-05-24

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WO2011147291A1 true WO2011147291A1 (en) 2011-12-01

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101852168A (en) * 2010-05-24 2010-10-06 浙江华鹰风电设备有限公司 Centrifugal variable paddle hub of windmill generator
CN102345569A (en) * 2011-10-14 2012-02-08 内蒙古航天亿久科技发展有限责任公司 Novel wind wheel structure of large wind generating set
CN109469592B (en) * 2017-09-07 2020-04-28 新疆金风科技股份有限公司 Wind generating set

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CN2802142Y (en) * 2004-11-24 2006-08-02 任兰新 Drive locking axial force positioning structure of rotor of double entry mid-open pump
CN101520023A (en) * 2009-03-26 2009-09-02 徐剑雄 Variable propeller pitch wind wheel of wind powered generator
CN101852168A (en) * 2010-05-24 2010-10-06 浙江华鹰风电设备有限公司 Centrifugal variable paddle hub of windmill generator
CN201747516U (en) * 2010-05-24 2011-02-16 浙江华鹰风电设备有限公司 Centrifugal variable-propeller hub of wind driven generator

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Publication number Priority date Publication date Assignee Title
CN201339544Y (en) * 2008-12-25 2009-11-04 浙江华鹰风电设备有限公司 Passive pitch-controlled wind-powered generator with shifting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2802142Y (en) * 2004-11-24 2006-08-02 任兰新 Drive locking axial force positioning structure of rotor of double entry mid-open pump
CN101520023A (en) * 2009-03-26 2009-09-02 徐剑雄 Variable propeller pitch wind wheel of wind powered generator
CN101852168A (en) * 2010-05-24 2010-10-06 浙江华鹰风电设备有限公司 Centrifugal variable paddle hub of windmill generator
CN201747516U (en) * 2010-05-24 2011-02-16 浙江华鹰风电设备有限公司 Centrifugal variable-propeller hub of wind driven generator

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