CN107905957A - 调桨长的万向风车的主轴和支架 - Google Patents
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/02—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having a plurality of rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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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
- 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
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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
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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
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
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- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/202—Rotors with adjustable area of intercepted fluid
- F05B2240/2021—Rotors with adjustable area of intercepted fluid by means of telescoping blades
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- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
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- 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
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/328—Blade pitch angle
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- 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
- F05B2270/00—Control
- F05B2270/70—Type of control algorithm
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- 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
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- 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
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- 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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Abstract
本发明名称为调桨长万向风车的主轴和支架。调桨长万向风车的主轴和支架由空心轴(7)、支架(2,16)刹车盘(3)、轴套(6)、行星齿轮(10)、齿轮箱(12,18)、扇形齿轮(9,11)、行星齿轮固定杆(5)、固定销(14)、深沟轴承(4,13)、止推轴承(8)组成。当上一个支架带动的空心轴(7)使行星齿轮箱(12)内的上扇形齿轮(9)旋转后,通过行星齿轮(10)的啮合就使与下支架(16)连接的下扇形齿轮(11)向相反的方向旋转,以此类推,就使多个(偶数个)串联起来的风轮一半正转,一半反转。如果在叶桨安装时,也使叶桨所确定的旋转方向与支架的旋转方向相一致,就实现了侧推力的平衡,防止了风车侧翻,并且两支架产生的旋转力矩是叠加在一起的。因此,就使得多个风车串联成树状,既不会使侧翻力增加,又不会减少输出力矩,同时减少了受周期力的作用产生共振的可能。
Description
技术领域
本发明专利涉及一种风能利用设备领域,特别是涉及垂直轴风车的主轴和支架。
背景技术
由于风电机的大型化是并网型风电机降低发电成本的主要途径,所以兆瓦级风电机是目前的主流机型。水平轴风力机的发电容量已达5兆瓦,正在向10兆瓦发展。但是受到翼型叶片长度和材料的限制,水平轴风力机的容量几乎已达到极限,再向大发展已非常困难,人们自然把目光投向了垂直轴风电机。虽然在结构上垂直轴风电机的容量可以达到几十兆瓦都没有问题,但其在运行过程中,由于翼型攻角是不断变化的,其输出扭矩在一个周期内也是不断变化的,所以就必须考虑解决大型结构转动时在周期变化力的作用下产生共振的问题。
我们知道,调桨长的万向风车(201210393482.2)用调节叶桨头上的三个转轴,使叶桨的倾斜度(α)、偏心度(β)、安装攻角(γ)发生变化,就使叶桨翼型截面的方向、位置发生了变化,从而使叶桨翼型截面上产生的升力的方向和大小发生变化,使输出到输入的反馈作用形成了正反馈,提高了风车效率。但这还不能解决大型结构转动时在周期变化力的作用下产生共振的问题。
但是,调桨长的万向风车的叶桨通过叶桨头斜向安装在支架上,形成V字形结构,不仅使叶桨大部分重量作用在支架底盘上,作用在叶桨上的力很少(相当于提高了叶桨强度),还为多个风车进行上下串联提供了条件;多个风车串联成树状,大大提高了风车的启动性能和功率输出。
那么,采用了多个风车串联成树状的结构能不能解决产生共振的问题呢?其实不能,串联结构不仅导致问题更严重,并且又带来了新的问题,这就是:单风轮的垂直轴风车在风力的作用下旋转时,因为一侧风速高一侧风速低,两侧风压不一致,风车就会受到侧面的推力作用,会引起风车的侧翻。如果利用多个风车进行上下串联,且串联起来的风轮都向一个方向旋转,那么,这势必更加加大了侧向的推力作用,风车必将更加容易侧翻,也更加容易产生共振。为解决这些问题,就需要对主轴做出一定的改变,使串联起来的风车应该为偶数个,并且应该一半逆时针旋转,一半顺时针旋转,这样才能使侧推力平衡,同时解决在周期变化力的作用下产生共振的问题。
本发明就是为达到上述技术目的,应用行星齿轮使两个上下串联的风轮旋转方向相反,而输出轴却只向一个方向旋转,这样就使两个侧向推力相互抵消,像双螺旋桨直升机一样,解决风车的侧翻问题和共振问题。
发明内容
一、主轴和支架的结构
一种调桨长的万向风车的主轴和支架由空心轴、刹车盘、轴套、行星齿轮、齿轮箱、扇形齿轮、行星齿轮固定杆、固定销、深沟轴承、止推轴承组成,其特征是,相邻两个支架旋转方向相反,而输出轴却只向一个方向旋转。
之所以有这样的技术特征,完全是因为使用了行星齿轮。当上一个支架带动的空心轴使行星齿轮箱内的上扇形齿轮旋转后,通过行星齿轮的啮合就使与下面支架连接的下扇形齿轮向相反的方向旋转,以此类推,就使多个(偶数个)串联起来的风轮一半正转,一半反转。如果在叶桨安装时,也使叶桨所确定的旋转方向与支架的旋转方向相一致(注意翼型的安装方向和叶桨头的调节),就实现了侧推力的平衡,防止了风车侧翻。
两个相邻支架中的上支架与轴套和空心轴由固定销固接在一起,其下部连接的空心轴穿插到下支架所固接的轴套内,空心轴顶端连接着由上支架驱动的扇形齿轮,空心轴与轴套之间设有深沟轴承和止推轴承来减少摩擦阻力和固定空心轴位置。上扇形齿轮通过行星齿轮与下扇形齿轮啮合,使下扇形齿轮向相反方向旋转,这就实现了相邻两支架旋转方向相反的技术目的。见附图1和附图2。
二、技术特征和技术效果
由于应用行星齿轮使相邻两个支架的旋转方向相反,如果安装叶桨时也让叶桨所确定的旋转方向与支架旋转方向一致,那么两支架产生的旋转力矩是相加的,这就使得多个串联起来的风车,虽然旋转方向不同,但其产生的旋转力矩是叠加在一起的。因此,就使得多个风车串联成树状,既不会使侧翻力增加,又不会减少输出力矩,一举两得。
应用行星齿轮使相邻两风车支架旋转方向相反,也对风车的启动十分有利,大大增加了启动力矩,降低了启动风速,并且减少了受周期力的作用产生共振的可能。
附图说明
附图1调桨长的万向风车的主轴和支架剖视图
1叶桨头;2支架;3刹车盘;4深沟轴承1;5行星齿轮固定杆;6轴套;7空心主轴;8 止推轴承;9上扇形齿轮;10行星齿轮;11下扇形齿轮;12行星齿轮箱;13深沟轴承2;14 固定销;15法兰盘;16下支架;17发电机;18输出齿轮箱;19底座;20输出扇形齿轮;
附图2调桨长的万向风车的主轴和支架安装示意图
21叶桨支撑杆;其他于附图1相同;
具体实施方式
根据图1和图2,用一般钢材制作空心轴、刹车盘、轴套、行星齿轮、齿轮箱、扇形齿轮、行星齿轮固定杆、固定销、深沟轴承、止推轴承,然后将两个相邻支架中的上支架,与轴套和空心轴由固定销固接在一起,其下部连接的空心轴穿插到下支架所固接的轴套内,空心轴顶端连接着由上支架驱动的扇形齿轮,空心轴与轴套之间设有深沟轴承和止推轴承来减少摩擦阻力和固定位置。当上一个支架带动的空心轴使行星齿轮箱内的上扇形齿轮旋转后,通过行星齿轮的啮合就使与下面支架连接的下扇形齿轮向相反的方向旋转,以此类推,就使多个 (偶数个)串联起来的风轮一半正转,一半反转。如果在叶桨安装时,注意翼型的安装方向和正确的进行叶桨头的调节,也使叶桨所确定的旋转方向与支架的旋转方向相一致,就实现了侧推力的平衡,防止了风车侧翻;并且大大增加启动力矩,降低启动风速,减少了受周期力的作用产生共振的可能。
Claims (3)
1.一种调桨长的万向风车的主轴和支架由空心轴(7)、刹车盘(3)、轴套(6)、行星齿轮(10)、行星齿轮箱(12)、上扇形齿轮(9)、下扇形齿轮(11)行星齿轮固定杆(5)、固定销(14)、深沟轴承1(4)、深沟轴承2(14)止推轴承(9)、上支架(2)、下支架(16)、输出齿轮箱(18)组成,其特征是,当上支架(2)带动的空心轴使行星齿轮箱(12)内的上扇形齿轮(9)旋转后,通过行星齿轮(10)的啮合就使与下支架(16)连接的下扇形齿轮(11)向相反的方向旋转,以此类推,就使多个(偶数个)串联起来的风轮一半逆时钟方向旋转,一半顺时钟方向旋转;如果在叶桨安装时,也使叶桨所确定的旋转方向与支架的旋转方向相一致,就实现了侧推力的平衡,防止了风车侧翻和产生共振。
2.根据权利要求1所述的调桨长的万向风车的主轴和支架,其特征是,两个相邻支架中的上支架(2)与轴套(6)和空心轴(7)由固定销(14)固接在一起,其下部连接的空心轴穿插到下支架所固接的轴套(6)内,空心轴(7)顶端连接着由上支架(2)驱动的扇形齿轮(9),空心轴与轴套之间设有深沟轴承(4)和止推轴承(9)来减少摩擦阻力和固定位置。上扇形齿轮(9)通过行星齿轮(10)与下扇形齿轮(11)啮合,使下扇形齿轮(11)向相反方向旋转。
3.根据权利要求1所述的调桨长的万向风车的主轴和支架,其特征是,由于应用行星齿轮使相邻两个支架的旋转方向相反,如果安装叶桨时也让叶桨所确定的旋转方向与支架旋转方向一致,那么两支架产生的旋转力矩是相加的,这就使得多个串联起来的风车,虽然旋转方向不同,但其产生的旋转力矩是叠加在一起的。因此,就使得多个风车串联成树状,既不会使侧翻力增加,又不会减少输出力矩,同时减少了因受周期力的作用而产生共振的可能;应用行星齿轮使相邻两风车支架旋转方向相反,也对风车的启动十分有利,增加了启动力矩,降低了启动风速。
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CN107905943A (zh) | 2018-04-13 |
CN102953928B (zh) | 2016-03-02 |
CN107905944A (zh) | 2018-04-13 |
CN102953928A (zh) | 2013-03-06 |
CN107905945A (zh) | 2018-04-13 |
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