CN102401106B - 兆瓦级封闭行星差动风电增速箱 - Google Patents

兆瓦级封闭行星差动风电增速箱 Download PDF

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CN102401106B
CN102401106B CN201010591108.4A CN201010591108A CN102401106B CN 102401106 B CN102401106 B CN 102401106B CN 201010591108 A CN201010591108 A CN 201010591108A CN 102401106 B CN102401106 B CN 102401106B
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CN102401106A (zh
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吴声震
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Shijiazhuang Keyi Heavy Industry Co ltd
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    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04—Combinations of toothed gearings only
    • F16H37/041—Combinations of toothed gearings only for conveying rotary motion with constant gear ratio
    • 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
    • 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
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05B2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclic, planetary or differential type
    • 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

本发明涉及一种兆瓦级封闭行星差动风电增速箱，由机座与大端盖部件组成，机座部件包括机座、输入轴与内齿圈，大端盖部件包括差动、准行星传动件及平行轴齿轮副，差动传动件包括太阳轮、行星轮、行星架及行星轮轴，准行星传动件包括准太阳轮、准行星轮、固定盘及准星轮轴，大端盖联接机座端面，其特征在于：准行星轮用滑动轴承支承，准星轮轴为盲孔轴，轴上有小油孔，轴内有过滤材料，大端盖内有油分配器，分配器每一油管装在准星轮轴盲孔的进口处，机座有一圆孔，相应短圆筒上有螺孔。准行星轮数量为行星轮的2.3-2.5倍。有益效果：薄壁短圆筒内花键机加工艺好、成本低；组件拆、装方便；二内齿圈圆周力相近使圆筒不扭曲变形。

Description

兆瓦级封闭行星差动风电增速箱
技术领域 本发明涉及风电增速箱技术领域，一种兆瓦级封闭行星差动风电增速箱。 
背景技术 背景技术“兆瓦级行星差动风电增速箱”(200910152360.2)的有益效果是拆、装方便、可在高空大修；比国内外先进机型轻40-55％。但也存在下述严重问题： 
(A)理论计算(下表星轮数1∶2)发现：①两内齿圈圆周力Ft不相等，因而会使输入轴圆筒扭曲变形，因此准内齿圈加宽b2＝180、245、263及276；②当齿宽＝b1+b2＝288、380、408及431，显然，如果再加上内撑盘D宽度的话，输入轴圆筒内花键很长而增大机加工难度，精度亦难保证，同时齿过宽会降低齿向、齿间负荷的均匀，因此说内撑盘D是不合理构思； 
(B)当输入轴圆筒很长时，还会出现一个问题：拉出差动与准行星封闭组件后，输入轴圆筒因自重而“低头”，封闭组件便很难装回去了，因此说内撑盘D是不合理构思； 
(C)由于准行星轮(np＝8～12)尺寸小只能用滑动轴承、因而必须采用润滑泵经分配器对滑动轴承强制润滑，其可靠性大大优于自润滑，过滤润滑油是轴承长寿命重要因素； 
(D)从上表可看出，星轮数比为1∶2.3～2.5时，二内齿圈圆周力Ft及齿宽b相近。 
发明内容 本发明目的在于提供一种“兆瓦级行星差动风电增速箱”(200910152360.2)改进后的新构思“兆瓦级封闭行星差动风电增速箱”。 
技术方案 改进技术方案： 
(1)输入轴圆盘联接薄壁短圆筒，圆筒内花键与装在圆筒内的内齿圈外花键滑动配合； 
(2)准行星轮用滑动轴承支承在准星轮轴上，准星轮轴为盲空轴，轴上有5-10个小油孔，大端盖内有润滑油分配器F，分配器小油管装在准星轮轴进口处，强制润滑可靠性优于自润滑； 
(3)机座端面处有一圆孔K，短圆筒上有一螺孔，用来吊住输入轴圆筒，不使圆筒“低头”； 
(4)差动行星轮与准行星轮数量1∶2.3～2.5，使两组轮齿的圆周力相近。 
有益效果比照背景技术其创造性在于： 
(1)输入轴圆盘联接的薄壁短圆筒内花键机加工艺好、成本低； 
(2)封闭组件拆、装方便； 
(3)二内齿圈圆周力相近使输入轴圆筒不扭曲变形。 
附图说明 图1，本发明实施例结构示意图 
具体实施方式 下面结合附图对本发明详加描述： 
参照图1.一种兆瓦级封闭行星差动风电增速箱，由机座部件与大端盖部件组成，所述机座部件包括机座1、输入轴14与第一、二内齿圈10、2，所述输入轴14由轴承13支承在机座1内孔，所述输入轴14圆盘上联接薄壁短圆筒3，所述薄壁短圆筒3内花键与装在该薄壁短圆筒内的第一、二内齿圈10、2外花键滑动配合，使内齿圈可以轻松拆、装，所述大端盖部件由差动、准行星传动件及平行轴齿轮副A与B组成，所述差动传动件包括太阳轮15、行星轮11、行星架16及均布在行星架上行星轮轴12，所述准行星传动件包括准太阳轮5、准行星轮8、固定盘4及均布在固定盘上的准星轮轴7，所述固定盘4联接在大端盖9内圆环端面上，所述太阳轮15联接在传动轴6轴伸端，所述行星架16与准太阳轮5联接一体并用轴承支承在传动轴6上，所述第一、二内齿圈10、2齿数z、模数m相等，因而用起顶螺钉拆卸大端盖时，使大端盖部件沿内齿圈齿导轨轻松拉出；反之，沿内齿圈齿导轨被推进，所述齿轮A装在传动轴6上，所述传动轴6两端用轴承分别支承在输入轴14与大端盖9内孔，所述大端盖9联接在机座1端面上，动力由装在大端盖9上的轴齿轮B输出，其特征在于： 
所述准行星轮8用滑动轴承17支承在准星轮轴7上； 
所述准星轮轴7为盲孔轴，准星轮轴7上有5-10个小油孔，盲孔轴内有过滤材料，用以过滤润滑油，清洁油品是轴承长寿命重要因素； 
所述大端盖9内腔装有润滑油分配器F，所述分配器F的每一小油管装在相应的准星轮轴7的盲孔的进口处，强制润滑可靠性优于自润滑； 
所述机座1靠近端面处有一圆孔K，与之相应的是薄壁短圆筒3上有一螺孔，当要拆卸大端盖部件时，在机座1圆孔K处插入螺钉吊住输入轴圆筒，目的不使输入轴圆筒“低头”以便于大端盖部件装回去。 
所述兆瓦级封闭行星差动风电增速箱，其特征在于：行星轮11数量为3只，准行星轮8数量为6～7只。 
所述兆瓦级封闭行星差动风电增速箱，其特征在于：行星轮11数量为4只，准行星轮8数量为8～9只。 
所述兆瓦级封闭行星差动风电增速箱，其特征在于：行星轮11为5只，准行星轮8为10～12只，理论计算表明，当两者数量1∶2.3～2.5时，两组轮齿的圆周力相近。 

Claims (4)

1.一种兆瓦级封闭行星差动风电增速箱，由机座部件与大端盖部件组成，所述机座部件包括机座(1)、输入轴(14)与第一、二内齿圈(10、2)，所述输入轴(14)由轴承(13)支承在机座(1)内孔，输入轴(14)圆盘上联接薄壁短圆筒(3)，所述薄壁短圆筒(3)内花键与装在该薄壁短圆筒内的第一、二内齿圈(10、2)外花键滑动配合，所述大端盖部件由差动、准行星传动件及平行轴齿轮副(A，B)组成，差动传动件包括太阳轮(15)、行星轮(11)、行星架(16)及均布在行星架上行星轮轴(12)，所述准行星传动件包括准太阳轮(5)、准行星轮(8)、固定盘(4)及均布在固定盘上的准星轮轴(7)，所述固定盘(4)联接在大端盖(9)内圆环端面上，所述太阳轮(15)联接在传动轴(6)轴伸端，所述行星架(16)与准太阳轮(5)联接一体并用轴承支承在传动轴(6)上，所述第一、二内齿圈(10、2)齿数z、模数m相等，齿轮(A)装在传动轴(6)上，所述传动轴(6)两端用轴承分别支承在输入轴(14)与大端盖(9)内孔，所述大端盖(9)联接在机座(1)端面上，动力由装在大端盖(9)上的轴齿轮(B)输出，其特征在于： 
所述准行星轮(8)用滑动轴承(17)支承在准星轮轴(7)上； 
所述准星轮轴(7)为盲孔轴，准星轮轴(7)上有5-10个小油孔，盲孔轴内有过滤材料； 
所述大端盖(9)内腔装有润滑油分配器（F），所述分配器（F）的每一小油管装在相应的准星轮轴(7)的盲孔的进口处。 
所述机座(1)靠近端面处有一圆孔(K)，与之相应的是薄壁短圆筒(3)上有一螺孔。 
2.根据权利要求1所述的兆瓦级封闭行星差动风电增速箱，其特征在于：行星轮(11)数量为3只，准行星轮(8)数量为6～7只。 
3.根据权利要求1所述的兆瓦级封闭行星差动风电增速箱，其特征在于：行星轮(11)数量为4只，准行星轮(8)数量为8～9只。 
4.根据权利要求1所述的兆瓦级封闭行星差动风电增速箱，其特征在于：行星轮(11)为5只，准行星轮(8)为10～12只。 
CN201010591108.4A 2010-12-10 2010-12-10 兆瓦级封闭行星差动风电增速箱 Expired - Fee Related CN102401106B (zh)

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CN103089929A (zh) * 2012-11-03 2013-05-08 吴小杰 轴承用脂润滑兆瓦级准行星半直驱风电增速箱
CN104373571A (zh) * 2014-08-06 2015-02-25 吴小杰 夹层风冷箱体锌基合金轴承支承之行星差动减速箱
CN104500709A (zh) * 2014-12-30 2015-04-08 天津华建天恒传动有限责任公司 复合行星差动机构风电齿轮箱

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