CN105612344A - 垂直轴风力发电机的风轮传动*** - Google Patents

垂直轴风力发电机的风轮传动*** Download PDF

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CN105612344A
CN105612344A CN201380080143.1A CN201380080143A CN105612344A CN 105612344 A CN105612344 A CN 105612344A CN 201380080143 A CN201380080143 A CN 201380080143A CN 105612344 A CN105612344 A CN 105612344A
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turning cylinder
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奥兰多·罗琦
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GENIUS ENERGY Srl
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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
    • F03D15/00—Transmission of mechanical power
    • F03D15/20—Gearless transmission, i.e. direct-drive
    • 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
    • F03D15/00—Transmission of mechanical power
    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/28—Wind motors characterised by the driven apparatus the apparatus being a pump or a compressor
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/188—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with at least one row for radial load in combination with at least one row for axial load
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/70—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged in holes in one coupling part and surrounding pins on the other coupling part
    • 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
    • F05B2220/00—Application
    • F05B2220/30—Application in turbines
    • 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
    • F05B2260/40—Transmission of power
    • 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
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

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  • Wind Motors (AREA)

Abstract

用于垂直轴风动风轮的具有三根同轴同心轴的传动***，具有非常高的紧凑性和刚性，其包括：承载有叶片的第一外转动轴(3)，其向与也是同轴的发电机相连的第三内转动轴(5)传动转动；介于外转动轴(3)和内转动轴(5)之间、并与风力机的支撑框架(8)形成为一体的第二轴(4)。所述***凭借减振弹簧的作用抵消风动风轮的重量而具有低滚动摩擦。

Description

垂直轴风力发电机的风轮传动***
技术领域
本发明涉及一种垂直轴风力发电机的风轮传动***。
背景技术
在垂直轴风力发电机中，从结构的角度来看，支撑各种风轮叶片的中心轴是其中的关键要素之一，因为，如果其具有的直径尺寸小，则会在风力载荷的脉动作用下发生严重变形，可能导致整个结构进入共振，从而危及整个风动风轮的稳定性。一些制造商，为了克服由该振动现象所导致的缺陷，采用大直径的中心轴，并且为了增加该结构的惯性扭矩，采用了具有显著壁厚的轴。
克服上述问题并获得必要的刚性的这些结构性解决方案导致了采用具有显著尺寸的滚动轴承，以及随之带来的摩擦所产生的高能量耗散和成本的增加。摩擦的能量耗散率构成了极为不利的一面，尤其是在所述风动风轮的启动阶段，其需要相当大的风速，而在大多数的装置中并不是总能得到。
本发明的主要目的在于克服这些有时甚至不能使用垂直轴风力发电机的不利方面。
本发明的另一目的在于提供用于垂直轴风动风轮的转动传动***，其可克服现有技术的缺陷，并可以合适的成本制造，从而能以有竞争力的成本在工业上大规模地制造。
发明内容
根据本发明，所述用于风动风轮的转动传动***，其有利地包括三个同心轴，分别位于外部和内部的第一轴和第三轴是可转动的，以便从风动叶片向风力发电机的轴传动，而所述第二轴是固定的，且其与一支撑结构形成一体，并反过来又固定到地面上。
有利的是，根据本发明，所述三根轴是同心且同轴的。有利的是，根据本发明，所述第一外轴与所述风力发电机的叶片形成一体并在第二固定轴的外部转动，且所述第三内转动轴在所述第二固定轴的内部转动。
附图说明
下文中将结合附图，以非限制性的方式提供了本发明的优选实施方式，其中：
图1根据本发明示出了处于工作位置时的传动***的侧视图；
图2示出了图1所示传动***沿纵切面Y-Y的剖面图。
具体实施方式
图1根据本发明示出了垂直轴风动风轮的转动传动***的结构示意图。
标号3表示的是直径为ФE的第一外轴，其上连接有垂直轴风动风轮的叶片1的径向臂2。
标号4表示的是被附接到框架8上、直径为ФI的第二轴，其具有显著的直径，并通过肋条4a加固，所述肋条4a的一端位于下方的与所述框架8形成一体的更大尺寸的支撑盘4b上。
直径为ФC的第三内转动轴5容置来自于所述外轴3的转动，根据本发明，有利的是第三内转动轴5只有通过所述叶片2的转动所传动产生的扭矩偏置，为此其仅需要小尺寸。
根据本发明，所述轴3、4、5的直径满足以下条件：ФC＜ФI＜ФE。
相对于外载荷，这种结构设置具有非常高的弯曲刚性和扭转刚性。
该实施方式还示出了所述第一轴3比其它两个轴4和5要短。
图2是图1的Y-Y向剖视图，其示出了本发明的传动***的结构设置的更多细节。所述外转动轴3具有容置在其内底座中的轴承19。所述轴承19优选被容置在封闭所述外转动轴3的下端的套圈3a中的基座内。根据本发明的优选实施方式，所述轴承19优选滚珠轴承，其具有浸渍在一种特殊润滑剂中的陶瓷滚珠和不锈钢轨道，从而确保非常高的可滑动性和高刚性。应当理解的是，根据本发明，有利的是，当所述传动***工作时，所述轴承19承受的是纯径向负载，因为所述外转动轴3所承受的的轴向负载成分卸载至一轴向轴承14上，所述轴向轴承14与所述轴承19相对，设置于所述轴3的另一端的上部。所述轴承14还由下方的减振弹簧17有利地支撑，所述轴向负载转移到所述减振弹簧17上，且所述减振弹簧17通过螺钉18预加载，所述螺钉18接合在通过螺钉15a附接在所述固定轴14上方的法兰15中。
在上法兰15的适配的基座中，还容置有介于所述法兰15和盖13之间的第一轴承12，所述盖13从上方封闭所述外转动轴3，并通过螺钉13a与其相连接；以及介于所述法兰15和所述内转动轴5之间的第二轴承16。所述法兰15还容纳有：在适配的轴向基座17a内的、通过接合在所述法兰15中、由螺钉18预加载的减振弹簧17。
根据本发明，所述轴4被固定在所述框架8上，还可有利地建立显著的厚度，从而形成高刚性结构，而不会影响所述传动***的工作流畅性。
此外，小直径的轴承12是有利的，其被轴向卸载，从而，连接到所述轴3上的、包括叶片1和臂2的风力风轮，虽然有着非常大的尺寸和非常高的刚性，但***的耗散摩擦非常低。
根据本发明，优选在所述第一外转动轴3和所述第三内转动轴5之间提供一弹性连接。更具体地，在所述内转动轴5的上端部设置有法兰11，其通过锁定螺母5a固定在所述轴5的上部。所述法兰11还通过螺钉11a固定在一反向法兰10上，所述反向法兰10在适配的基座10a内容纳有弹性元件9，例如由橡胶制成的阻尼器，所述弹性元件9与从上方封闭所述外转动轴3的所述盖13形成为一体，且所述法兰11还通过螺钉13b固定并与所述盖13接合，其中螺钉13b穿过例如是阻尼器的所述弹性元件9。
在所述内转动轴5的下端设置有弹性连接6，所述转动通过该弹性连接6从内转动轴5被传动至所述发电机7。所述发电机7还优选与所述内转动轴5同轴安装。小直径的内转动轴5是有利的，并可在上轴承16和下轴承20上滑动，所述下轴承20被容置在通过螺钉20b附接在部分封闭所述固定轴4的底端的径向隔板20c的下法兰20a中。通过这种方式，有利的是，可获得低摩擦耗散，类似于发生在所述外转动轴3上的***。
这种三根同轴同心轴的设置的结果是得到正如应用垂直轴风动风轮所需的非常刚性的结构，但同时，该非常低耗散的结构使得即使在非常低风速的条件下也可启动所述风力风轮。
如上所示和所描述的传动***可具有多种变形和修改，且这些变形和修改均落入与本发明相同的原理范围之内。

Claims (15)

1.一种垂直轴风力发电机的风轮传动***，其特征在于：其包括三根同轴同心轴，其中，第一外转动轴(3)与风动风轮的叶片(1)结合成一体，第二轴(4)固定于支撑框架(8)上，以及第三内转动轴(5)与所述第一轴(3)和发电机(7)的转动轴结合成一体，所述第一外转动轴(3)和第三内转动轴(5)具有从所述风动风轮的叶片(1)向所述发电机(7)的轴传动转动的功能，且所述第二轴(4)具有支撑所述传动***的功能。
2.根据权利要求1所述的***，其特征在于：所述第一外转动轴(3)的直径为ФE，所述第二固定轴(4)的直径为ФI，所述第三内转动轴(5)的直径为ФC，且所述ФC＜ФI＜ФE。
3.根据权利要求1或2所述的***，其特征在于：所述外转动轴(3)通过肋条(4a)加强，所述肋条(4a)的一端位于在其下方的、与所述框架(8)结合成一体的支撑盘(4b)上。
4.根据权利要求1或2或3所述的***，其特征在于：所述外转动轴(3)具有容置在一内底座中的轴承(19)，当所述传动***工作时，所述轴承(19)承受纯径向负载。
5.根据权利要求4所述的***，其特征在于：当所述***工作时，所述第一外转动轴(3)所承受的轴向负载成分被卸载至一轴向轴承(14)上，所述轴向轴承(14)与所述轴承(19)相对，设置于所述轴(3)的上部的另一端。
6.根据权利要求5所述的***，其特征在于：所述轴承14还由下方的减振弹簧(17)支撑，所述减振弹簧(17)通过螺钉(18)预加载，所述螺钉(18)接合在通过螺钉(15a)附接在所述固定轴(14)上方的法兰(15)中。
7.根据权利要求6所述的***，其特征在于：所述上法兰(15)的适配的基座中还容置有介于所述法兰(15)和从上部封闭所述外转动轴(3)的盖(13)之间的第一轴承(12)以及介于所述法兰(15)和所述内转动轴(5)之间的第二轴承(16)。
8.根据前述权利要求中的任意一项所述的***，其特征在于：所述第一外转动轴(3)和所述第三内转动轴(5)之间设置有弹性连接(9)。
9.根据权利要求8所述的***，其特征在于：所述内转动轴(5)的上端部设置有法兰(11)，其通过锁定螺母(5a)固定在所述内转动轴(5)的上方。
10.根据权利要求9所述的***，其特征在于：所述法兰(11)通过螺钉(11a)固定反向法兰(10)上，所述反向法兰(10)在适配的基座(10a)内容置有弹性元件(9)，所述弹性元件(9)与从上部封闭所述外转动轴(3)的所述盖(13)结合成一体，且所述法兰(11)通过穿过所述弹性元件(9)的螺钉(13b)固定并与所述盖(13)结合。
11.根据权利要求10所述的***，其特征在于：所述弹性元件(9)包括橡胶制成的阻尼器。
12.根据前述权利中的任意一项所述的***，其特征在于：所述内转动轴5的下端设置有弹性连接(6)，通过该弹性连接(6)，所述转动从所述内转动轴(5)被传动至所述发电机(7)。
13.根据前述权利要求中的任意一项所述的***，其特征在于：所述内转动轴(5)沿所述上轴承(16)和容置在下法兰(20a)中的下轴承(20)滑动，所述下法兰(20a)通过螺钉(20b)附接到部分封闭所述固定轴(4)下端的径向隔板(20c)上。
14.根据前述权利要求中的任意一项所述的***，其特征在于：所述第一转动轴(3)在所述第二固定轴(4)外部转动。
15.根据前述权利要求中的任意一项所述的***，其特征在于：所述发电机(7)与所述第三转动轴(5)同轴安装。
CN201380080143.1A 2013-10-11 2013-10-11 垂直轴风力发电机的风轮传动*** Pending CN105612344A (zh)

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CN108331836A (zh) * 2018-01-23 2018-07-27 哈尔滨工程大学 一种磁悬浮分离传动轴结构及垂直轴风力发电机组

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