CN102165195A - 用于分支出流体支流的设备 - Google Patents

用于分支出流体支流的设备 Download PDF

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CN102165195A
CN102165195A CN2009801375469A CN200980137546A CN102165195A CN 102165195 A CN102165195 A CN 102165195A CN 2009801375469 A CN2009801375469 A CN 2009801375469A CN 200980137546 A CN200980137546 A CN 200980137546A CN 102165195 A CN102165195 A CN 102165195A
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equipment
hydraulic pump
main flow
oil hydraulic
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CN102165195B (zh
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A·顺克
F·希里
H·默滕斯
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Hydac Filtertechnik GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C18/3442—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the inlet and outlet opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C2/3442—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

本发明涉及一种用于借助液压泵(10)从主流中分支出流体支流的设备，所述设备按照容积式排挤器原理工作地具有多个彼此密封的单个的、划分成功能组的主腔(12、14、16、18、20)，借助所述主腔能将来自至少一个主流入口(22)的流体从液压泵(10)的输入侧或抽吸侧输送到输出侧或压力侧并且继续经由至少一个主流出口(24)输送，其中，为了输送支流，除了主腔(12、14、16、18、20)外设有至少一个独立的分腔(26)，所述分腔是液压泵(10)的压力侧的组成部分并且连接到一独立的支流出口(42)上，该支流出口与相应的主流入口(22)和相应的主流出口(24)分隔开。

Description

用于分支出流体支流的设备
技术领域
本发明涉及一种用于借助液压泵从主流中分支出流体支流的设备，所述设备按照容积式排挤器原理()工作地具有多个彼此密封的单个的、划分成功能组的主腔，借助这些主腔能将来自至少一个主流入口的流体从液压泵的输入侧或抽吸侧输送到输出侧或压力侧并且继续经由至少一个主流出口输送。
背景技术
在现有技术中以多种实施方式已知这种类型的液压泵(DE 21 14202 C3)。液压泵一般用于将形式为转矩和转速的机械能转化成具有能预定的体积流量和流体压力的液压能。按照所谓的容积式排挤器原理工作的液压泵具有多个在泵壳体中密封的单个的腔，其中在这些腔中流体从泵的由抽吸接头形成的输入侧被输送到形式为压力接头的输出侧。因为就此而言在抽吸接头与压力接头之间不存在直接的连接，所以按照容积式排挤器原理的泵特别是适合于高的流体系统压力。
按照是使用叶片还是使用活塞来实现容积式排挤器原理，人们由结构方式决定地将齿轮泵和螺杆泵与叶片泵区分开并且也将它们与径向活塞泵和轴向活塞泵区分开。所有这些液压泵的共同点是，与容积式排挤器容积(排量)保持恒定还是可变无关地，在任何情况下被排挤的体积总是仅涉及待输送的在下面称为主流的流体流。
发明内容
因此从该现有技术出发，本发明的目的在于，这样地进一步改进已知的解决方案，即，以经济的方式扩展带有液压泵的这种设备的应用领域。所述目的通过整体上具有权利要求1特征的设备来实现。
根据本发明的设备能实现从所述的主流分支出流体支流，其中，为了输送支流，除了用于输送主流的主腔外设有至少一个独立的分腔，所述分腔是液压泵的压力侧的组成部分并且连接在一独立的支流出口上，所述支流出口与相应的主流入口和相应的主流出口分隔开。
通过从主流分支出的支流，可以将支流用于极为不同的任务范围，其中支流的流体体积及其流体压力可按照设备的设计来预定。因此，所述的流体支流可与主流无关地用于提供给各个流体负载。另外，在侧倾稳定或助力转向系统的领域中通过支流可以在失灵情况下容易地实现对液压部件的紧急供给。另外，从主流分支出的支流可以经受传感器的检验，例如分析其污染程度，以便这样获得关于主流的质量报告。在此，在极为不同的技术领域中的多种应用是可能的。
在本发明设备的一种特别优选的实施方式中规定，液压泵是叶片泵。在此，叶片泵的各个叶片优选以在一能被驱动的转子中可纵向移动的方式在位于转子中的终端位置与定子的向外限定叶片的可移动性的周壁之间被这样地引导，使得对于叶片中的至少一部分在这些叶片与转子以及定子之间分别形成两个彼此相对的流体室。由于彼此相对的流体室，按照其体积构型可以借助一个设备为不同的应用情况实现不同的压力水平，这就此而言也为主流导致另外的匹配于液压回路要求的可能性。
而根据本发明的设备无需限于在叶片泵中使用，而是原则上在此可以使用所有的按照容积式排挤器原理或类似原理工作的液压泵。
根据本发明的设备为了形成具有能任意预定的体积分量的支流而按照设备的设计优选构造成模块化标准组件的形式，所述标准组件能与其它的部件、例如驱动单元和/或过滤单元组合，以形成流体的整体装置；但作为单个标准组件也可用在整套系统中、如侧倾稳定装置、助力转向装置等，在那里对于不同的控制任务、但也为紧急功能而需要独立的分体积流。
本发明设备的其它有利的实施方式是其他从属权利要求的主题。
附图说明
下面参照实施例来更详细地描述根据本发明的设备。在此，在原理性的、不按比例的视图中：
图1以纵剖视图的形式示出按照本发明的设备的主要部件，其中，图下边缘出于较简化的视图的原因而部分剖去地示出；
图2以分解图的形式示出按照图1的对象，但在与之位错的图平面中示出；
图3示出按照图1和图2的腔块的端侧的底视图；
图4示出图1至3所示设备的可能的应用实例。
具体实施方式
图1至3所示的设备用于借助一液压泵10从主流分支出流体支流，该液压泵按照容积式排挤器原理工作地具有多个彼此密封的单个的腔12、14、16、18和20，借助这些腔能将流体从液压泵10的输入侧或抽吸侧输送到输出侧或压力侧。
为了要分支出的支流，设有一独立的分腔26，该分腔连同第三腔16、第四腔18以及第五腔20一起是液压泵10的压力侧的组成部分，而第一腔12和第二腔14则配属于抽吸侧。
在此情况下，一叶片泵用作液压泵10，该叶片泵的转动方向在图3中用箭头28示出。叶片泵的各个叶片30以在一能被驱动的转子32中可纵向移动的方式在位于转子32中的终端位置与定子36的向外限定叶片30的可移动性的周壁34之间被这样地引导，使得对于叶片30在这些叶片与转子32以及定子36之间分别形成两个彼此相对的流体室38、40。
进一步由图3可见，沿转动方向观察右侧的流体室38以及流体室40扩展并且就此而言在包括单个腔12和14的情况下对主流体体积流施加抽吸作用。而沿朝向图3的观察方向观察，关于腔16、18和20的流体室38和40在叶片泵的转动方向上渐缩，使得就此而言主流以能预定的压力水平到达输出侧或压力侧。所述容积式排挤器原理在叶片泵和类似的容积式排挤泵中是已知的，从而在此处不再具体详细说明。但由于在抽吸侧以及在压力侧上的各个腔连同流体室38和40，能够为各个腔12相对于14以及16和18相对于20形成不同的、成对地相关联的压力水平，使得就此而言还可借助所述设备控制两个彼此分开的主流。但在当前实施例中，利用腔12、14、16、18和20共同输送仅一个主流体流。
分腔26用于形成流体支流，该分腔与其它的所述腔就此而言在空间上分开并且具有一分开的支流出口42。通过所述的支流出口42排出支流量，相应的叶片30沿朝向第二流体室40的移动方向就此而言将该支流量从设备中推出。因为叶片30彼此直接相随地横越过分腔26，所以在设备压力侧上持续地经由支流出口42向外输出流体。在本实施例中，在供给液压负载之后为了实现紧急功能或者在经过传感器单元(未示出)之后支流被引到设备的抽吸侧上，并经由支流入口44再次被输入给设备。
总之就此而言可以确定，流体室38、40中的一部分与液压泵10的抽吸侧和压力侧的各单个的腔12、14、16、18和20相配，而通过流体室40中的至少一个形成的另一部分与用于形成分流的分腔26相配。特别是如按照图2的分解图所示，定子36由一圆柱形的空心环形成，所述空心环可接纳在设备壳体46中。转子32连同其各个叶片30以与其驱动轴线同心的方式接纳在定子36中，以便实现上述的叶片泵原理。所示的腔12、14、16、18、20和26也是一独立的腔块48的组成部分，其中出于较简化的视图的原因在图2中未示出第四腔18。腔块48向外与设备壳体46(参见图1)齐平地终止，并且向内朝向定子36的方向经由一密封圈50相应地密封。为了密封连接的设备部件，可在腔块48的相对的一侧上设有一另外的密封圈52。
一驱动轴54用于驱动叶片泵，该驱动轴朝向外部经由一被封装的(gekammert)密封圈56密封，以及经由一独立的密封圈58相对于电动机62的驱动轴60(参见图4)密封。在按图2的视图中，与按图1的视图相比，支流出口42在图纸平面内以约120°的偏转角位错地示出。
另外由附图可见，腔12、14、16、18和20从抽吸侧22和压力侧24在腔块48内部到该腔块的两个相对的端侧64、66通入环境中，除了用于形成支流的分腔26，该分腔在其背向液压泵10的一侧向外通过腔块48的壁部分68(图1)封闭。另外，各个腔12、14、16、18和20以及26以与液压泵的驱动轴线(驱动轴60)同心布置的方式分布地设置，并且此外构成为镰刀形的。在此，第一腔12连同第三腔16和第四腔18形成外部的同心的环，而第二腔14连同第五腔20和分腔26位于围绕驱动轴线的内部的同心的圆形轨迹上。如果应当为液压泵10使用其它的容积式排挤泵，则就此而言可选择其它的布置结构，其中为从主流分出支流而为此需要一个独立的分支腔，该分支腔相对于用于主流的入口和出口具有分开的出口。
下面参照图4来描述所述设备应用的一个实施例。在此，按照图1至3的设备加装在整体以70标记的常见结构形式的过滤单元上。过滤单元70在过滤器壳体74中具有一可更换的过滤元件72，其中，过滤元件72的过滤垫76在内周侧由一常见的具有星形布置的内壁80的支撑管78支撑。另外，过滤装置70在其上侧具有引导主流的流体入口82以及流体出口84。另外，过滤装置70具有一整体以86标记的旁通装置，如果过滤元件72由于污物被堵塞，所述旁通装置直接释放在根据本发明的设备与流体出口84之间的流体路径。
与过滤装置70相对地并且从上方安置在根据本发明的设备上地设置电动机62，其中出于较简化的视图的原因省去了电绕组。电动机62就此而言驱动驱动轴60，该驱动轴沿朝向图4的观察方向观察以其下端部接合到叶片泵的转子32中，以便因此确保对其的驱动。如果叶片泵作为液压泵10运行，则该叶片泵经由其抽吸侧并且进而经由主流入口22将流体经由流体入口82抽吸，并且在压力侧并进而经由主流出口24将主流的所述流体量经由通道部位88(参见图1)引入在过滤器壳体74与过滤元件72之间的流体室90中，其中，在流过过滤元件72之后、由外向内地经由支撑管78的壁导向将经净化的流体经由流体出口84从设备导出。同时，在用于主流的所述输送运行中，经由支流入口44、例如源自传感器装置地抽吸分流流体，并且经由分开的分腔26和支流出口42再将该分流流体继续引导给传感器装置(未示出)，例如用于确定主流流体的一部分的污染程度。
上述实施例仅是示例性的，而根据本发明的设备总是可以应用于需要来自主流的支流量的情况。这样，在车辆中的侧倾稳定装置中和/或助力转向装置中紧急功能也可被提供支流流体。

Claims (8)

1.用于借助液压泵(10)从主流中分支出流体支流的设备，所述设备按照容积式排挤器原理工作地具有多个彼此密封的单个的、划分成功能组的主腔(12、14、16、18、20)，借助所述主腔能将来自至少一个主流入口(22)的流体从液压泵(10)的输入侧或抽吸侧输送到输出侧或压力侧并且继续经由至少一个主流出口(24)输送，其特征在于，为了输送支流，除了所述主腔(12、14、16、18、20)外设有至少一个独立的分腔(26)，所述分腔是液压泵(10)的压力侧的组成部分并且连接到一独立的支流出口(42)上，该支流出口与相应的主流入口(22)和相应的主流出口(24)分隔开。
2.根据权利要求1所述的设备，其特征在于，所述液压泵(10)是叶片泵。
3.根据权利要求2所述的设备，其特征在于，所述叶片泵的各个叶片(30)以在一能被驱动的转子(32)中可纵向移动的方式在位于转子(32)中的终端位置与定子(36)的向外限定叶片(30)的可移动性的周壁(34)之间被这样地引导，使得对于叶片(30)中的至少一部分在这些叶片(30)与转子(32)以及定子(36)之间分别形成两个彼此相对的流体室(40、38)。
4.根据权利要求1至3中任一项所述的设备，其特征在于，在所述液压泵(10)的抽吸侧(22)和压力侧(24)上分别布置有至少两个在设备的腔块(48)中的腔(12、14；16、18、20、26)，这些腔中的一部分(12、16、18)能与每一个叶片的其中一个流体室(38)相配，而这些腔中的另一部分(14、20、16)能与每一个叶片(30)的另一流体室(40)相配。
5.根据权利要求4所述的设备，其特征在于，所述腔(12、14、16、18、20)从抽吸侧和压力侧在腔块(48)内部到该腔块的两个彼此相对的端侧(64、66)通入周围环境中，而用于形成支流的分腔(26)在其背向液压泵(10)的一侧上向外封闭。
6.根据权利要求1至5中任一项所述的设备，其特征在于，各所述单个的腔(12、14、16、18、20、26)以与一电动机(62)的驱动轴(60)同心布置的方式分布并且构成为镰刀形的。
7.根据权利要求1至6中任一项所述的设备，其特征在于，在液压泵(10)的压力侧从主流中分支出的支流能输入给液压负载、优选形式为传感器装置的液压负载，在流过所述液压负载后，支流返回到所述液压泵(10)的抽吸侧。
8.根据权利要求6或7所述的设备，其特征在于，电动机(62)用于驱动液压泵，并且为过滤主流的流体而设有过滤单元(70)，该过滤单元在相对的侧面上能连接到所述设备上作为该设备的一部分。
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