CN107420263A - 风力发电机偏航制动机构 - Google Patents

风力发电机偏航制动机构 Download PDF

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CN107420263A
CN107420263A CN201710667787.0A CN201710667787A CN107420263A CN 107420263 A CN107420263 A CN 107420263A CN 201710667787 A CN201710667787 A CN 201710667787A CN 107420263 A CN107420263 A CN 107420263A
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spring
driven generator
friction plate
oil
gas
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危金兰
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Jiangshan Xianjin Electromechanical Technology Service Co Ltd
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Jiangshan Xianjin Electromechanical Technology Service Co Ltd
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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
    • F03D7/0244—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
    • 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
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • 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
    • F03D7/0204—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
    • 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
    • F03D7/0244—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
    • F03D7/0248—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking by mechanical means acting on the power train
    • 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
    • F03D80/50—Maintenance or repair
    • F03D80/55—Cleaning
    • 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
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/228—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side
    • 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
    • F16D65/00—Parts or details
    • F16D65/0031—Devices for retaining friction material debris, e.g. dust collectors or filters
    • 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
    • F16D65/00—Parts or details
    • F16D65/0037—Devices for conditioning friction surfaces, e.g. cleaning or abrasive elements
    • 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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • 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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • 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
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • 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
    • F05B2270/329—Azimuth or yaw angle
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical
    • 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
    • F16D2123/00—Multiple operation forces
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/08—Seals, e.g. piston seals
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/582—Flexible element, e.g. spring, other than the main force generating element
    • 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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Wind Motors (AREA)

Abstract

本发明涉及风力发电机。一种风力发电机偏航制动机构，包括制动圈和制动单元，制动单元包括液压制动器和弹簧制动器，液压制动器包括动态密封圈、制动油缸、活塞、液压制动部摩擦片和泄漏检测机构，弹簧制动器包括弹簧制动部摩擦片和弹簧，泄漏检测机构包括设置在制动油缸的环形油沟、油罐和检测机构，动态密封圈包括套设在活塞上的充气密封圈和气源，环形油沟位于静态密封圈和充气密封圈之间。本发明提供了一种密封圈失效泄漏时能够及时发现且产生泄漏后能够有效避免液压油漏到制动圈上的风力发电机偏航制动机构，解决了现有的风力发电机偏航制动机构产生泄漏时不能够及时发现的问题。

Description

风力发电机偏航制动机构
技术领域
本发明涉及风力发电机，尤其涉及一种风力发电机偏航制动机构。
背景技术
有的风力发电机使用时时通过偏航制动机构来调整并固定风叶的方向，使得风力发电机精准对风。风力发电机组需要偏航时，通阻尼力矩使偏航过程更加平稳。现有的偏航制动机构完全由液压制动和余压提供阻尼力矩。密封圈失效导致泄漏时不能够及时发现，直至不能够使用时才能发现。
发明内容
本发明提供了一种密封圈失效泄漏时能够及时发现且产生泄漏后能够有效避免液压油漏到制动圈上的风力发电机偏航制动机构，解决了现有的风力发电机偏航制动机构产生泄漏时不能够及时发现的问题。
以上技术问题是通过下列技术方案解决的：一种风力发电机偏航制动机构，包括偏航轴承、连接在偏航轴承上的制动圈和配合制动圈进行摩擦制动的制动单元，所述制动单元包括液压制动器和弹簧制动器，所述液压制动器包括动态密封圈、制动油缸、一端通过静态密封圈密封连接在制动油缸内的活塞、连接在活塞另一端上的液压制动部摩擦片和泄漏检测机构，所述弹簧制动器包括弹簧制动部摩擦片和驱动弹簧制动部摩擦片抵接到所述制动圈的轴向一侧上的弹簧，所述弹簧制动部摩擦片位于所述制动圈的轴向另一侧，所述泄漏检测机构包括设置在所述制动油缸的壁上的沿制动油缸周向延伸的环形油沟、同所述环形油沟连通的油罐和检测到油罐内有油时产生报警的检测机构，所述静态密封圈位于所述环形油沟远离所述液压制动部摩擦片的一侧，所述动态密封圈包括套设在所述活塞上的充气密封圈和通过管路同充气密封圈连接在一起的气源，所述管路上设有电动阀，泄漏检测机构检测到漏油时所述电动阀开启使得所述气源给所述充气密封圈充气到充气密封圈将所述活塞和制动油缸密封连接在一起，所述环形油沟位于所述静态密封圈和充气密封圈之间。非偏航状态时，液压制动器的液压制动部摩擦片也同制动圈抵接在一起生产摩擦力、从而协同弹簧制动器的弹簧制动部摩擦片同制动圈抵接在一起产生的摩擦力一起进行共同制动。进行偏航时，则液压制动器泄压而使得由于制动部摩擦片同制动圈脱开、已即仅通过弹簧制动器提供偏航所需要的制动力。当液压制动器产生泄漏时，泄漏检测机构检测到并产生反馈，发出告警信号，提示需要采取相应的预防措施，防止密封完全失效，发生故障停机，从而提高发电效率，减少维护工作量。由于在偏航状态时液压制动器不进行工作，从而起到缩短液压制动器的使用时间起到延长使用寿命的作用。产生泄漏后充气密封圈同活塞密封在一起、避免有滴漏到制动圈上而影响制动效果和导致污染。没有泄露时充气密封圈同活塞之间不密封在一起、从而能够避免产生磨损，实现提高避免油泄露到制动圈上时的可靠性。
作为优选，所述弹簧制动器还包括安装座、设有导向杆的摩擦片底座、套设在导向杆上的驱动板和外螺纹调节管，所述安装座设有安装孔，所述弹簧制动部摩擦片、摩擦片底座、弹簧和驱动板依次设置在所述安装孔内，所述外螺纹调节管螺纹连接在所述安装座上且同所述驱动板抵接在一起。能够对弹簧制动器所产生的制动力进行调整。
作为优选，所述弹簧为压簧。
作为优选，所述检测机构包括设置在所述油罐内的透明结构的接油管、位于接油管内的可以被所述制动油缸内的油浮起的挡光球、检测挡光球是否浮起的反射式光电开关和当反射式光电开关检测到挡光球浮起时进行报警的报警器。提高了检测机构的一种技术构思不同的技术方案。
作为优选，所述接油管为圆柱管，所述挡光球滑动连接在所述接油管内，所述挡光球设有若干沿挡光球径向贯通挡光球的油孔。可靠性好。
作为优选，所述液压制动部摩擦片包括安装部和摩擦部，所述安装部设有两个沿制动圈周向分布在摩擦部两端的清洁结构安装槽，所述清洁结构安装槽内安装有清洁结构，所述清洁结构包括抹布架、连接在抹布架上的对制动圈进行擦拭清洁的抹布和驱动抹布架沿制动圈轴向进行升降的升降气缸。使用时，使两个清洁结构中位于制动圈转动方向前方的清洁结构的抹布同制动圈接触清洁、另一个抬起。能够提高制动效果。
作为优选，所述清洁结构安装槽远离摩擦部的一侧设有沿制动圈径向延伸的纳污槽。能够容纳清洁下的污物。降低二次进入摩擦部同制动圈之间的几率。
作为优选，所述纳污槽内设有排污输送带，所述排污输送带上设有排污推板，所述排污推板有两块，两块排污推板沿排污输送带的周向均匀分布。当纳污槽内的污物多了后，通过起到排污输送带，排污输送带驱动排污推板将污物推出。初始状态时，一块排污推板位于排污输送带的纳污一侧的远离排污槽排出污物的一端上。
本发明具有下述优点：偏航时仅通过弹簧制动器提供制动力，能够降低液压制动器的使用时间以延迟使用寿命；当液压制动器产生泄漏时，能够及时发出告警信号以提示需要采取应对措施；产生泄漏时液压油不会漏出到制动圈上而影响制动。
附图说明
图1为本发明的示意图。
图2制动单元的剖视示意图。
图3为液压部摩擦片沿制动圈的径向外端进行观测时的示意图。
图4图3的A-A剖视示意图。
图5为油罐的放大剖视示意图。
图中：偏航轴承1、制动圈11、制动单元3、液压制动器31、制动油缸311、活塞312、液压制动部摩擦片313、安装部3131、摩擦部3132、清洁结构安装槽3133、纳污槽3134、静态密封圈314、清洁结构315、抹布架3151、抹布3152、升降气缸3153、排污输送带316、排污推板3161、弹簧制动器32、安装座321、安装孔3211、弹簧制动部摩擦片322、摩擦片底座323、弹簧324、驱动板325、导向杆326、外螺纹调节管327、泄漏检测机构4、环形油沟41、油罐42、油道421、检测机构43、接油管431、接油斗4311、挡光球限位块4312、挡光球432、油孔4321、反射式光电开关433、报警器434、动态密封圈5、充气密封圈51、气源52、管路53、电动阀54。
具体实施方式
下面结合附图与实施例对本发明作进一步的说明。
参见图1，一种风力发电机偏航制动机构，包括偏航轴承1、设置在偏航轴承上的制动圈11和若干个制动单元3。
制动单元3有6个。6个制动单元3中的3个设置在制动圈11的前侧、另外3个制动单元3设置在制动圈11的后侧。
参见图2，制动单元3包括液压制动器31和弹簧制动器32。液压制动器31设有泄漏检测机构4和动态密封圈5。
液压制动器31包括制动油缸311、活塞312和液压制动部摩擦片313。液压制动部摩擦片313包括安装部3131和摩擦部3132。摩擦部3132连接在安装部3131的朝向制动圈11的一侧上。活塞312的一端通过静态密封圈314密封连接在制动油缸311内、另一端同安装部3131连接在一起。静态密封圈314同制动油缸311固接在一起。
泄漏检测机构4包括环形油沟41和油罐42。环形油沟41设置在制动油缸311的周面上。环形油沟41沿制动油缸周向延伸。油罐42通过油道421同环形油沟41连通。静态密封圈314位于环形油沟41远离液压制动部摩擦片313的一侧。
动态密封圈5包括充气密封圈51和气源52。充气密封圈51套设在活塞312上。充气密封圈51同制动油缸311固定在一起。气源52为压缩空气。气源52通过管路53同充气密封圈51连通。管路53上设有电动阀54。动态密封圈5还包括同泄漏检测机构4电连接在一起的控制单元。环形油沟41位于静态密封圈314和充气密封圈51之间。初始状态时充气密封圈51为处于瘪的状态、即充气密封圈51不对活塞和制动油缸进行密封。当泄漏检测机构4检测到漏油时，控制单元使电动阀54开启，气源52内的气体输入到充气密封圈51内将充气密封圈51鼓起、使得充气密封圈51将活塞和制动油缸密封连接在一起，从而防止油滴漏到液压制动部摩擦片上。
弹簧制动器32包括安装座321和外螺纹调节管327。安装座321设有安装孔3211。安装孔3211内依次设有弹簧制动部摩擦片322、摩擦片底座323、弹簧324和驱动板325。弹簧制动部摩擦片322固定在摩擦片底座323上。摩擦片底座323设有导向杆326。驱动板325套设在导向杆326上。弹簧324为压簧。弹簧324一端同摩擦片底座抵接在一起、另一端同驱动板抵接在一起。外螺纹调节管327螺纹连接在安装座321。外螺纹调节管327同驱动板325抵接在一起。
使用时，通过转动外螺纹调节管327来调整弹簧制动部摩擦片的摩擦力。
参见图3，安装部3131设有两个清洁结构安装槽3133和两个纳污槽3134。两个清洁结构安装槽3133位于两个纳污槽3134之间。两个清洁结构安装槽3133沿制动圈周向分布在摩擦部3132两端。位于摩擦部同一端的纳污槽3134和清洁结构安装槽3133连通。清洁结构安装槽3133内安装有清洁结构315。清洁结构315包括抹布架3151、连接在抹布架上的对制动圈进行擦拭清洁的抹布3152和驱动抹布架沿制动圈轴向进行升降的升降气缸3153。
纳污槽3134内设有排污输送带316。排污输送带316上设有排污推板3161。排污推板3161有两块。
参见图4，纳污槽3134为沿制动圈径向延伸的通槽。，两块排污推板3161沿排污输送带316的周向均匀分布。
参见图3和图4，使用时使沿制动圈转动方向前方的清洁结构315下降到抹布同制动圈接触实现清洁、另一个清洁结构315抬起到其上的抹布不同制动圈接触。产生状态时，一块排污推板3161位于排污输送带316朝向纳污槽3134的槽口的一侧的远离纳污槽排出污物的一端上、能够实现转动最小的角度而将纳污槽内的污物排出。清洁下的污物集聚在纳污槽3134内的排污输送带316上，当集结到需要排出时，使排污输送带316转动半周即可。
参见图5，泄漏检测机构4还包括检测机构43。检测机构43包括接油管431、挡光球432、反射式光电开关433和报警器434。接油管431为圆柱管。接油管431为透明结构。接油管431设置在油罐42内。接油管431的上端设有接油斗4311。接油斗4311位于油道421的下方且同油道421对齐。接油管431内设有挡光球限位块4312。挡光球432滑动连接在接油管431内。挡光球432设有若干沿挡光球径向贯通挡光球的油孔4321。反射式光电开关433安装在接油管431上，当挡光球432没有浮起时、挡光球432不能够挡住反射式光电开关433发出的光、也即不能够被反射式光电开关433检测到。
使用时，当静态密封圈产生磨损而漏油时，油进入油罐而进入接油管431、将挡光球432浮起而挡住反射式光电开关433发出的光，从而被反射式光电开关433检测到，反射式光电开关433检测到挡光球432浮起时驱动报警器434报警和使电动阀开启。
参见图1到图5，使用时，偏航状态时，制动油缸311泄压，使得活塞312不驱动液压制动部摩擦片313伸出而同制动圈摩擦性抵接在一起，此时仅弹簧制动部摩擦片同制动圈抵接在一起产生摩擦而提供制动力。非偏航状态时，制动油缸311内的液压油驱动活塞312去驱动液压制动部摩擦片313同制动圈抵接在一起而产生制动力、此时弹簧制动部摩擦片仍旧保持制动作用。，报警器产生报警提醒已经漏油。

Claims (8)

1.一种风力发电机偏航制动机构，包括偏航轴承、连接在偏航轴承上的制动圈和配合制动圈进行摩擦制动的制动单元，其特征在于，所述制动单元包括液压制动器和弹簧制动器，所述液压制动器包括动态密封圈、制动油缸、一端通过静态密封圈密封连接在制动油缸内的活塞、连接在活塞另一端上的液压制动部摩擦片和泄漏检测机构，所述弹簧制动器包括弹簧制动部摩擦片和驱动弹簧制动部摩擦片抵接到所述制动圈的轴向一侧上的弹簧，所述弹簧制动部摩擦片位于所述制动圈的轴向另一侧，所述泄漏检测机构包括设置在所述制动油缸的壁上的沿制动油缸周向延伸的环形油沟、同所述环形油沟连通的油罐和检测到油罐内有油时产生报警的检测机构，所述静态密封圈位于所述环形油沟远离所述液压制动部摩擦片的一侧，所述动态密封圈包括套设在所述活塞上的充气密封圈和通过管路同充气密封圈连接在一起的气源，所述管路上设有电动阀，泄漏检测机构检测到漏油时所述电动阀开启使得所述气源给所述充气密封圈充气到充气密封圈将所述活塞和制动油缸密封连接在一起，所述环形油沟位于所述静态密封圈和充气密封圈之间。
2.根据权利要求1所述的风力发电机偏航制动机构，其特征在于，所述弹簧制动器还包括安装座、设有导向杆的摩擦片底座、套设在导向杆上的驱动板和外螺纹调节管，所述安装座设有安装孔，所述弹簧制动部摩擦片、摩擦片底座、弹簧和驱动板依次设置在所述安装孔内，所述外螺纹调节管螺纹连接在所述安装座上且同所述驱动板抵接在一起。
3.根据权利要求1或2所述的风力发电机偏航制动机构，其特征在于，所述弹簧为压簧。
4.根据权利要求1或2所述的风力发电机用的偏航混合制动系统，其特征在于，所述检测机构包括设置在所述油罐内的透明结构的接油管、位于接油管内的可以被所述制动油缸内的油浮起的挡光球、检测挡光球是否浮起的反射式光电开关和当反射式光电开关检测到挡光球浮起时进行报警的报警器。
5.根据权利要求4所述的风力发电机用的偏航混合制动系统，其特征在于，所述接油管为圆柱管，所述挡光球滑动连接在所述接油管内，所述挡光球设有若干沿挡光球径向贯通挡光球的油孔。
6.根据权利要求1或2所述的风力发电机用的偏航混合制动系统，其特征在于，所述液压制动部摩擦片包括安装部和摩擦部，所述安装部设有两个沿制动圈周向分布在摩擦部两端的清洁结构安装槽，所述清洁结构安装槽内安装有清洁结构，所述清洁结构包括抹布架、连接在抹布架上的对制动圈进行擦拭清洁的抹布和驱动抹布架沿制动圈轴向进行升降的升降气缸。
7.根据权利要求6所述的风力发电机用的偏航混合制动系统，其特征在于，所述清洁结构安装槽远离摩擦部的一侧设有沿制动圈径向延伸的纳污槽。
8.根据权利要求7所述的风力发电机用的偏航混合制动系统，其特征在于，所述纳污槽内设有排污输送带，所述排污输送带上设有排污推板，所述排污推板有两块，两块排污推板沿排污输送带的周向均匀分布。
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CN110966150A (zh) * 2019-12-04 2020-04-07 明阳智慧能源集团股份公司 一种风力发电机组油滑环
CN114000975A (zh) * 2021-11-03 2022-02-01 华能通辽风力发电有限公司 一种风电机组偏航系统

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110966150A (zh) * 2019-12-04 2020-04-07 明阳智慧能源集团股份公司 一种风力发电机组油滑环
CN114000975A (zh) * 2021-11-03 2022-02-01 华能通辽风力发电有限公司 一种风电机组偏航系统
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