CN109695684A - 有利地用于伺服电机***的行星齿轮系、方法以及使用该行星齿轮系的伺服电机*** - Google Patents
有利地用于伺服电机***的行星齿轮系、方法以及使用该行星齿轮系的伺服电机*** Download PDFInfo
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
- F16H61/684—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
- F16H61/686—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with orbital gears
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- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
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- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/46—Gearings having only two central gears, connected by orbital gears
- F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
- F16H3/52—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
- F16H3/54—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
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- 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
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- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
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- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
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- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
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- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
- F16K31/055—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation for rotating valves
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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Abstract
本发明涉及一种有利地用于伺服电机***的行星齿轮系,所述这种类型的行星齿轮系包括定位在壳体(18)中的伺服电机***、承载多个行星齿轮(26)的行星架(24)、齿圈(28)和太阳齿轮(30)。所述行星齿轮系的特征在于,其包括用于改变所述输入和输出速比的装置(40),所述装置可以从所述壳体(18)的外部被致动。本发明可用于伺服电机***。
Description
技术领域
本发明涉及一种有利地用于伺服电机***的行星齿轮系,这种类型的行星齿轮系包括容纳在输入轴和输出轴之间的壳体中的伺服电机***、行星架、齿圈和太阳齿轮、以及特别是对于使用这种行星齿轮系并配备有飞轮手动控制机构的阀和伺服电机***的控制方法。
背景技术
已知的是,关闭阀所需的力不是恒定的,并且以图2所示的方式基于移动构件的行进而改变。在移动构件的较长接近阶段期间,即,在到达阀的密封座之前,所需力相对恒定且较低,并且仅在短暂的紧固阶段中大幅增加直到关闭阀为止,该持续时间通常短于总行进时间的10%。然而,在已知的手动控制的飞轮伺服电机***中,阀的手动控制机构仅设计用于较短的高力阶段的功能,而不考虑更长的接近阶段。
发明内容
本发明旨在弥补以上缺陷。
为了实现该目的,本发明提出使用行星齿轮系在输入和输出之间传输速度,其特征在于,其包括用于改变可以从外部被致动的速度的齿轮比的装置。
根据本发明的一个有利的特征,行星齿轮系的特征在于,齿圈安装成在壳体中旋转,且其特征在于,控制装置适于将旋转速度施加在齿圈上,该旋转速度经确定用于产生第一速比并且用于将齿圈和行星架旋转固定以产生第二速比。
根据另一特征,行星齿轮系的特征在于,齿圈可以被控制装置阻止而无法旋转。
根据另一特征,行星齿轮系的特征在于,齿圈和行星架各自设有外齿,且其特征在于,控制装置包括小齿轮,该小齿轮可仅在齿圈的外齿的啮合位置与通过齿圈的外齿和行星架的啮合而将齿圈和行星架旋转固定的位置之间移动。
根据另一特征,行星齿轮系的特征在于,其仅在齿圈的阻挡位置中产生输入与输出之间传输的速度的倍增,并且在其将齿圈和行星架旋转固定的位置中产生输入和输出之间的1:1的比例的速度传输。
根据另一特征,行星齿轮系的特征在于,小齿轮安装在杆上,该杆可平行于行星齿轮系的轴在壳体中轴向地移动,且其特征在于,杆在其外端处包括用于改变速比并选择所需比率的控制机构。
根据另一特征,行星齿轮系的特征在于,通过将控制构件推入壳体或将构件从壳体中拉出来完成对变速比的改变和选择。
根据另一特征,行星齿轮系的特征在于,行星架构成输入构件,太阳齿轮构成输出构件。
一种用于控制诸如阀的装置的旋转致动器构件的方法,该方法通过在阀的打开位置和阀的闭合位置之间旋转手动致动飞轮来移动所述旋转构件,从打开位置到闭合位置的移动包括第一阶段和第二阶段,该第一阶段用于接近闭合位置,其中施加到飞轮的扭矩相对较低,该第二阶段用于产生关闭,其中施加到飞轮的扭矩大大增加,其特征在于,在所述第一接近阶段期间,相对于第二阶段,在飞轮和旋转构件之间提供转数的倍增。
根据一个有利的特征,该方法的特征在于,使用根据本发明的行星齿轮系来改变传输速度。
根据另一有利的特征,该方法的特征在于,在行进的第二阶段(b)期间,行星齿轮系用于其中齿圈和行星架被旋转固定的配置中且用于第一阶段(a)中用于分离齿圈的配置中。
用于控制诸如管的流体流动路径的开关阀的致动器构件并且设有用于致动器构件的手动控制飞轮的伺服电机***的特征在于,其包括根据本发明的行星齿轮系。
根据一个有利的特征,该***的特征在于其根据本发明实施该方法。
附图说明
本发明将得到更好地了解,其它目的、特征、细节和优点将在参考附图的以下说明性描述中更清楚地显现,仅作为说明本发明的一个实施例的示例,其中:
-图1是根据本发明的伺服电机***的示意图;
-图2是阀的操作图,并且说明阀的关闭扭矩和阀的行进之间的关系;
-图3和图4是根据本发明的行星齿轮系的第一模型实施例的立体图,其分别示出后者在其用于增加速度的配置中和在其具有1:1的变速齿轮比的配置中;
-图5和图6是根据本发明的行星齿轮系的第二实施例的第一版本的功能性示意图,其分别示出后者在其用于增加速度的配置中和在其具有1:1的变速齿轮比的配置中;以及
-图7和图8是行星齿轮系的第二实施例的第二版本的功能性示意图,其分别示出后者在其用于增加速度的配置中和在其具有1:1的变速齿轮比的配置中。
具体实施方式
作为非限制性示例,下面将本发明描述为其适用于如图1所示的多匝伺服电机***。
根据该图的突触框图,该***包括串联安装的电机1、行星齿轮系3、束力限制器5和减速器7,该减速器包括蜗杆8和齿轮9,该齿轮由螺丝8驱动并与输出轴14一起旋转固定,用于驱动致动器构件(如用于关闭和打开管的阀的旋转构件)。该图进一步示出与蜗杆8串联安装的用于手动致动致动器和离合器***13的飞轮11以及根据本发明的设有控制构件17的行星齿轮系16。
图2示出该阀的移动致动器构件的扭矩C的特性曲线,作为该构件在其图右侧的打开位置O与其左侧的闭合位置F之间的行进的函数。可以看出,该曲线具有两个部分,每个部分限定用于关闭阀的过程的步骤,即,第一阶段a,在该第一阶段过程中,扭矩C相对较低并且大致恒定,且其在与阀座接触接触之前是旋转构件的接近阶段以及关闭阀之前的紧固阶段b。
若必须通过致动飞轮11来手动关闭阀,则关闭阀所需的力和操作者在飞轮上施加的力在接近阶段a相对较低,但在阶段b期间大大增加,在此期间,致动构件(即,薄膜密封件)啮合在阀座上。
根据本发明,建议通过使其适应于图2的曲线来优化对手动控制器的使用。该目的是通过在扭矩近似恒定和较低的接近阶段a期间在两个元件(即飞轮和用于关闭和打开阀的旋转构件)之间提供两个元件之间的传输速度的增加,即,相对于在阶段b中的两个元件之间的传输速度的转数,其中为确保关闭,操作者必须提供更大的力。
实际上,在扭矩较低的阶段a中,本发明可以减少施加到飞轮上的转数,用于给定的阀行进。为此,在飞轮和旋转构件之间会完成倍增。当然,由于存在倍增,所以飞轮上的力必须相对于直接扭矩的传递更大,而无需倍增。但是,由于必要的扭矩相对较低,通过选择适当的倍增值,所以增加的力现在可具有不让操作者伤脑筋的值。在增加待提供的扭矩的阶段b中,本发明考虑到返回直接变速器,这相当于相对于阶段a增加待提供给飞轮的转数。但是,由此通过增加待施加到飞轮上的转数,减少了待供应给飞轮的力。
为了实现这个目的,本发明提出在飞轮11和蜗杆8之间放置具有两档变速齿轮比的行星齿轮系。作为非限制性示例,在图3和图4中示出了这种行星齿轮系。根据本发明的标记为16的行星齿轮系容纳在输入轴20与输出22之间的壳体18中,其包括与轴20一起被旋转固定并承载三个行星齿轮26的行星齿轮架24,每个行星齿轮均绕行星架的轴27旋转、具有与行星齿轮26啮合的内齿的齿圈28以及由行星齿轮驱动并且用于与输出轴(未示出)一起被旋转固定的太阳齿轮30。
在该配置中,当齿圈在壳体中被阻挡,即,不能旋转时,根据图3,行星齿轮26使太阳齿轮30旋转,并且行星齿轮系在其输入和输出之间产生速度传输中的倍增,其由构成齿轮系的部件的齿所确定。
因此,输出轴以及蜗杆8的旋转速度相对于操作者相对于行星齿轮系的倍增而施加到飞轮11的旋转速度而倍增。
根据本发明,行星齿轮系用于图3的配置,在阶段a中,待供应给致动器构件的扭矩较低。
相反,为了确保在阶段b期间的最低旋转速度(其需要更高的扭矩以及来自操作者的更大的力),行星齿轮系16设有确保输入和输出之间的速度传输为1:1的比率。
为此,根据本发明的行星齿轮系设有装置40,该装置允许行星齿轮系以两种速比模式操作,并选择所需比率。为了使装置能够执行这些功能,齿圈安装在壳体中自由转动,在齿圈的径向外表面上提供外齿36,在行星架的外周表面上提供外齿38。具有不同速度齿轮比的两种操作模式的选择性控制装置40包括杆42,该杆可相对于行星架和齿圈在轴向外部的壳体18中移动并且承载小齿轮44。杆42可平行于行星齿轮系的轴在图3所示出的位置和根据图4所示出的位置之间移动,在图3所示出的位置,小齿轮44仅与齿圈的外齿36啮合,并通过啮合在后者的齿45(图4)中而被阻止无法在壳体18中旋转,根据图4所示出的位置,小齿轮44与齿圈的外齿36和行星架的外齿38啮合。
应该注意的是,仅在齿圈的齿36的啮合位置以及小齿轮的旋转被阻止的情况下,齿圈也不能旋转。在该配置中,行星齿轮系因此以相对于输入速度的输出速度的第一倍增模式操作。在其第二位置,根据图4,其中小齿轮在壳体中自由旋转并与齿圈的齿36和行星架的齿38啮合,同时确保齿圈和行星齿轮的旋转,行星齿轮系以第二比例1:1模式操作。实际上,假设齿圈和行星架被旋转固定并因此具有相同的旋转运动,则行星齿轮26无法绕其轴旋转。因此,由于行星齿轮相对于行星齿轮架是固定的,所以太阳齿轮相对于行星齿轮架也是固定的,其结果是输入速度与输出速度相同,因此行星齿轮系产生1:1的齿轮比。
为了能够选择期望的比率,杆在其自由的外端处包括构件,在此作为示例是构成图1的控制构件17的致动按钮,并且可以从外部进行命令和选择。
从附图中可以看出,根据图3所示,双速命令行星齿轮系可以从图4的配置中取得,用于通过按压按钮17将杆推入壳体中来将齿圈和行星架旋转固定到其用于阻止齿圈旋转的配置。通过拉动杆,齿轮系返回到图4的配置。
前面的描述表明,通过致动飞轮11来控制致动构件的方法涉及具有不同的变速齿轮比的两个操作阶段,即第一阶段a和第二阶段b,该第一阶段a的特征在于速度的倍增比,该第二阶段b的特征在于1:1的比率。
当然,该方法并不限于控制阀,而是可以应用于控制任何其他合适的致动器。
关于行星齿轮系,如在附图中所描述和示出的,其在上述方法和***中的使用仅作为示例给出,而不是限制性的,并且其可用于需要双速操作的任何其他技术领域。
应该注意的是,如所描述和示出的行星齿轮系本身仅仅是一个示例实施例。实际上,不是在行星齿轮系的输入和输出之间的倍速模式(即,转数)的情况下提供被阻止而无法旋转的齿圈,也可以考虑齿圈以给定的速度旋转,该速度例如可通过小齿轮的适当的旋转速度施加,而这将使得可修改倍增比率。这种修改可以从外部完成,例如通过向承载小齿轮的杆的外端施加适当的旋转运动。
本实施例的另一示例性实施方式可以是通过将齿圈安装在壳体中从而消除选择器小齿轮,使得齿圈能够在其在壳体的腔中被阻止而不能旋转(这可以获得倍增)的位置以及其与行星架的外齿啮合(这将齿圈和行星架旋转固定以获得1:1的比率)的位置之间滑动。
图5至图8给出了使用齿圈平移滑动的实施例的这种实施方式的两个版本的图。在这些图中,使用相同的附图标记来表示根据图3和图4的第一实施例中的已有部件。
图5和图6说明根据本发明的行星齿轮系的第二实施例的第一实施方式版本,其中齿圈28如箭头所示安装在壳体18中,可轴向移动的同时在引导件48的47中滑动,该引导件同轴地围绕输入轴20并且被固定地安装在壳体中。在图5中,齿圈28处于其阻挡壳体18中的旋转的位置,同时仅与行星架24的行星齿轮26啮合。如上所述,在该配置中,行星齿轮系以其输入20与其输出22之间的速度的倍增模式工作,以对应于图3。在图6的情况下,齿圈28在其仅与行星架24的外齿38啮合的位置中轴向平移。在将齿圈28和行星架24旋转固定的该位置中,根据图4,行星齿轮系以其传输模式根据1:1的比率工作。
在本发明的第二实施例的第二实施方式版本中,在图7和图8中,齿圈28和飞轮的轴(即,输入轴20)形成可在壳体18中轴向移动的组件,如箭头所示。输入轴20和行星架24之间的旋转连杆通过由参考标记51示意性地示出的滑动花键完成。图7示出处于其阻止壳体18中的旋转的位置的齿圈28,图8示出其与行星架24一起旋转固定的位置。
在本发明的范围内,还可以考虑通过将太阳齿轮置于输入端处并将行星架置于输出端处来使行星齿轮系的结构反转,这可以获得行星齿轮系屈服,在一个配置中,齿轮比为1:1,并且在另一配置中,输出速度低于输入速度的比率。
Claims (14)
1.一种有利地用于伺服电机***的行星齿轮系,这种类型的所述行星齿轮系包括定位在壳体(18)中的伺服电机***、承载多个行星齿轮(26)的行星架(24)、齿圈(28)和太阳齿轮(30),其特征在于,包括用于改变输入和输出速比的装置(40),所述装置(40)可从所述壳体(18)的外部致动。
2.根据权利要求1所述的行星齿轮系,其特征在于,所述齿圈(28)安装成在所述壳体(18)中旋转,且其特征在于,所述控制装置(40)适于将旋转速度施加于所述齿圈(28)上,所述旋转速度经确定用于产生第一速比并且用于将所述齿圈(28)和所述行星架(24)旋转固定以产生第二速比。
3.根据权利要求2所述的行星齿轮系,其特征在于,所述齿圈(28)被所述控制装置(40)阻止旋转。
4.根据权利要求2或3中任一项所述的行星齿轮系,其特征在于,所述齿圈(28)经安装可在所述壳体中在所述齿圈(28)在所述壳体中被阻止旋转的位置和所述齿圈(28)与所述行星架(24)一起被旋转固定的位置之间移动。
5.根据权利要求2或3中任一项所述的行星齿轮系,其特征在于,所述齿圈(28)和所述行星架(24)各自设有外齿(36、38),且其特征在于,所述控制装置(40)包括小齿轮(44),所述小齿轮(44)可在仅所述齿圈的所述外齿(36)的啮合位置与通过所述齿圈的所述外齿(36、38)和所述行星架的啮合而将所述齿圈(28)和所述行星架(24)旋转固定的位置之间移动。
6.根据权利要求5所述的行星齿轮系,其特征在于,其仅在所述齿圈(28)的所述阻挡位置中产生输入与输出之间传输的速度的倍增,并且在其将所述齿圈(28)和所述行星架(24)旋转固定的位置中产生输入和输出之间的1:1的比例的速度传输。
7.根据权利要求5或6中任一项所述的行星齿轮系,其特征在于,所述小齿轮(44)安装在杆(42)上,所述杆(42)可平行于所述行星齿轮系的所述轴在所述壳体(18)中轴向地移动,且其特征在于,所述杆(42)在其外端处包括用于改变所述速比并选择所需比率的控制构件(17)。
8.根据权利要求7所述的行星齿轮系,其特征在于,通过将所述控制构件(17)推入所述壳体(18)或将所述构件从所述壳体(18)中拉出来完成对所述速比的改变和选择。
9.根据权利要求1至8中任一项所述的行星齿轮系,其特征在于,所述行星架构成输入构件,所述太阳齿轮(30)构成输出构件。
10.一种用于控制诸如阀的装置的旋转致动器构件的方法,所述方法通过在所述阀的打开位置(O)和所述阀的闭合位置(F)之间旋转手动致动飞轮(11)来移动所述旋转构件,从所述打开位置到所述闭合位置的移动包括第一阶段和第二阶段,所述第一阶段用于接近(a)所述闭合位置,其中关闭所述阀所需的扭矩相对较低,所述第二阶段(b)用于产生所述关闭,其中所需扭矩大大增加,其特征在于,在所述第一接近阶段(a)期间,相对于所述第二阶段(b),在所述飞轮和所述旋转构件之间提供转数的倍增。
11.根据权利要求10所述的方法,其特征在于,使用根据权利要求1至9中任一项所述的行星齿轮系(16)来改变所述变速齿轮比。
12.根据权利要求11所述的方法,其特征在于,在行进的所述第二阶段(b)期间,所述行星齿轮系在其中所述齿圈(28)和所述行星架(24)通过所述控制装置(40)的所述小齿轮(44)得以旋转固定的配置中以及在所述第一阶段(a)期间在其中所述齿圈(28)与所述行星架(24)分离的配置中。
13.一种用于经由驱动齿轮(9)的蜗杆装置(18)来控制管阀的开闭的致动器构件的伺服电机***,其设有用于所述致动器构件的手动控制飞轮(11),其特征在于,包括根据权利要求1至9中任一项所述的***所述飞轮(11)和所述蜗杆(8)之间的行星齿轮系(16)。
14.根据权利要求13所述的***,其特征在于,其实施根据权利要求10至12中任一项所述的方法。
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- 2018-04-23 CN CN201810369023.8A patent/CN109695684B/zh active Active
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Also Published As
Publication number | Publication date |
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KR102193391B1 (ko) | 2020-12-21 |
RU2694876C1 (ru) | 2019-07-17 |
FR3072746A1 (fr) | 2019-04-26 |
ES2847830T3 (es) | 2021-08-04 |
CN109695684B (zh) | 2022-04-22 |
US10655708B2 (en) | 2020-05-19 |
EP3473888A1 (fr) | 2019-04-24 |
EP3473888B1 (fr) | 2020-11-18 |
US20190120330A1 (en) | 2019-04-25 |
FR3072746B1 (fr) | 2021-02-12 |
KR20190044479A (ko) | 2019-04-30 |
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