CN101147000A - 叶片泵 - Google Patents

叶片泵 Download PDF

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Publication number
CN101147000A
CN101147000A CNA2006800091381A CN200680009138A CN101147000A CN 101147000 A CN101147000 A CN 101147000A CN A2006800091381 A CNA2006800091381 A CN A2006800091381A CN 200680009138 A CN200680009138 A CN 200680009138A CN 101147000 A CN101147000 A CN 101147000A
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stator
vane pump
jig arm
rotor
spring
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CN101147000B (zh
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维利·施奈德
托尔斯滕·黑勒
迪尔克·埃伦费尔德
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Joma Polytec GmbH
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Joma Hydromechanic GmbH
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Priority claimed from DE102006021251A external-priority patent/DE102006021251B4/de
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Priority claimed from PCT/EP2006/007943 external-priority patent/WO2007039012A1/de
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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
    • 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
    • F04C2/3445—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 vanes having the form of rollers, slippers or the like
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • F04C14/226—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
    • 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)

Abstract

本发明涉及一种叶片泵，其包括外转子(8)、内转子(16)和多个叶片(20)，多个叶片(20)沿径向以可移动的方式安装于内转子(16)内的基本上径向的狭槽(18)内，并以可枢转的方式固定到所述外转子(8)上。所述外转子(8)沿定子(28)的内圆周表面(26)滑动。所述定子的轴线和所述内转子的轴线彼此相对偏移，且定子(28)能够沿径向相对于内转子(16)进行调整，由此使得所述偏移(60)可以改变。所述定子(28)由夹具(34)部分地包绕，夹具(34)安装于所述叶片泵的外壳内的可枢转轴承(32)内。所述夹具(34)包括夹臂(36，38)，所述夹臂(36，38)在可枢转轴承(32)的两侧突出，并且分别部分地包绕定子(28)。

Description

叶片泵
技术领域
本发明涉及一种叶片泵，其包括外转子、内转子和多个叶片，多个叶片沿径向以可移动的方式安装于内转子内的基本上径向的狭槽内，并且以可枢转的方式固定在外转子上，外转子沿定子的内圆周表面滑动，其中定子的轴线和内转子的轴线彼此相对具有偏移，定子能够沿径向相对于内转子进行调整，由此使得该偏移可以改变，且定子由夹具部分地包绕，夹具安装于叶片泵的外壳内的可枢转轴承内。
背景技术
从DE 100 40 711 A1中已知一种具有环形内转子的叶片泵，其中多个沿径向向外延伸的叶片元件以能够沿径向移动的方式容纳在所述内转子中。叶片元件的径向内端部搁置在抗扭的中央部件上，且径向外端部搁置在抗扭的外环上。转子能够绕相对于中央部件和外环的中心轴线偏移的旋转轴线旋转。以此方式，当转子在叶片元件之间旋转时，形成输送单元，输送单元扩大然后又缩小。通过改变输送单元的体积，将流体吸入输送单元内并随后排出。叶片元件的端部分别在中央部件和外环上滑动。此种叶片泵结构简单并且制造成本低廉。
为了提高效率，从DE 195 32 703 C1中已知一种摆式滑阀泵形式的叶片机。在这种泵中，叶片元件以可移动方式位于内转子内，然而它们在环形外转子内以可枢转方式受到支撑。内转子的旋转轴线相对于外转子的旋转轴线偏移，使得在操作过程中，形成类似地扩大随后又缩小的传输单元。但从DE 195 32 703 C1中已知的摆式滑阀泵结构复杂，因此制造成本高昂。
发明内容
本发明的目的是提供一种能够较精确地调整泵输出的叶片泵。
依据本发明，该问题能够由开头所提出类型的叶片泵以如下的方式解决，即夹具具有在可枢转轴承的两侧突出的夹臂，并且夹臂分别部分地包绕定子。
叶片泵的根据本发明的构造使得定子不仅可以借助于单一夹臂移动——为此目的，定子必须固定地连接于夹臂——而且定子可以由两个夹臂围绕，两个夹臂以叉形方式包绕定子。因此，在特别实施方式中，能够将压力仅施加到夹臂之一，同时另一夹臂由其它装置——例如借助于弹簧——驱动。在另一实施方式中，也可以将压力施加到两个夹臂，由此使得定子的位置由两个压力决定。这就使得能够实现非常精确地调整或定位定子，这是在特性曲线调整时所要求的。
因为两个夹臂沿相反方向驱动定子，所以当定位定子时能够考虑压力的最小变化。特别地，不必克服弹簧常数工作，而必须克服弹簧的可变化的力工作、即克服弹簧常数工作是不利的。附带产生的压力能够被直接地移动定子，即沿两个方向移动定子。
在本发明的进一步改进中，两个夹臂设置成都能够液压地或气动地枢转。在这种方案中，例如能够利用在系统中存在的油压来控制夹臂。对于气动系统而言，能够以相同方式利用存在的压力或真空压力。
在该实施方式的进一步改进中，将一夹臂设置成能够借助于弹簧枢转。在特定变型中，能够借助于弹簧调整的定子。这种弹簧，特别是预张紧的弹簧，具有沿最大泵排出量方向——即最大压力或最大真空压力——移动夹具和/或定子的任务。如果夹臂的气动式或液压式控制在电力中断时失效，则这是必需的。借助于机械弹簧对夹具进行控制，确保系统被供应所需的液压或气动压力或气动真空压力。此处的弹簧可为卷簧、板簧、扭簧或甚至是气垫。
为了实现最简单方式的夹臂控制，根据本发明，夹臂的自由端具有用于压力介质的活塞表面。调整力能够基于活塞表面的尺寸确定，使得可利用压力直接传递到活塞表面。
以优选的方式，活塞表面可移动地安装于设置在叶片泵外壳内的导引件内。一方面，这些导引件用于将活塞与外壳密封开，同时另一方面，它们为夹臂的自由端提供精确的导引和支承。
从下列描述将清楚本发明的其他优点、特点和细节并且将参照附图中的两个特别优选的示例性实施方式更加详细地说明本发明的其他优点、特点和细节。附图中所示的特点以及权利要求和说明书中所描述的特征能够分别地或任意组合地构成本发明的基础。
附图说明
图中示出：
图1是横贯叶片泵并且部分切去的横截面图；
图2是依据第一实施方式的不包括外壳的叶片泵的立体图；和
图3是依据第二实施方式的不包括外壳的叶片泵的立体图。
具体实施方式
为了更好地理解本发明，参照DE 10 2005 048 602，其内容以参照方式结合入本文，因此使其成为该说明书的一部分。
图1示意性地示出整体标记为12的叶片泵的外壳10，其内可旋转地安装有驱动轴14。该驱动轴14驱动内转子16，内转子16具有多个径向狭槽18，叶片20沿径向以可移动的方式安装于径向狭槽18内。这些叶片20具有加厚自由端22，导块24可枢转地安装于自由端22上。这些导块24邻接定子28的内圆周表面26，并形成标记为8的外转子。内转子16、两个叶片20、两个导块24以及定子28分别形成工作空间30。这可从图1的叶片泵12的切去部分清楚地看出。当内转子16旋转时，工作空间30扩大或缩小，使得流体可进行传输。
也可以从图1中看到，叉形夹具34可枢转地安装于固定地连接到外壳的可枢转轴承32内，夹具34具有两个夹臂36和38，夹臂36和38邻接定子28并至少部分地包绕它。这也可以从图2和图3中看出。夹臂36的自由端40和夹臂38的自由端42具有活塞表面44，活塞表面44由存在于压力腔46和48内的流体作用。夹臂36和38放置于导引件50内，通过导引件50流体密闭地密封夹臂，并且导引件50构成圆筒形表面。
如果例如压力作用在夹臂36的自由端40的活塞表面44上，则夹臂36以及因此整个夹具34绕着可枢转轴承32的枢转轴线沿箭头52的方向枢转，由此使得定子28沿箭头52的方向移动。在图1所示的位置，定子28具有轴线54，轴线54具有相对于驱动轴14的轴线56的偏移60。当定子28沿箭头52方向移动时，这个偏移60减小，结果内转子16相对于定子28或外转子8的偏心率降低，由此减小叶片泵12的工作容积。
如果压力施加到夹臂38的端部42的活塞表面44，则工作容积增加，由此使得夹具34逆着箭头52的方向枢转。因此在活塞表面44上的压力所产生的力作用到夹具34上。
在图3所示的实施方式中，逆着箭头52方向作用以移动定子28的机械弹簧58——特别是卷簧——以合适方式作用在定子28的底侧上。该移动方向沿叶片泵12的最大输出量方向作用。
如果出现故障，在夹臂36的活塞表面44和夹臂38的活塞表面44处都没有压力，则定子28总是沿最大输出量方向移动，这确保叶片泵12提供足够的待输送的流体或足够的真空压力。这个弹簧58仅在发生故障时用于调整叶片泵12。在正常状态下，通过将压力应用到夹臂38的活塞表面44，或通过减小夹臂36的活塞表面44上的压力，使定子28回到最大排出量的方向。

Claims (9)

1.一种叶片泵(12)，包括外转子(8)、内转子(16)和多个叶片(20)，所述多个叶片(20)沿径向以可移动的方式安装于所述内转子(16)的基本上径向的狭槽(18)内，并以可枢转的方式固定到所述外转子(8)上，所述外转子(8)沿定子(28)的内圆周表面(26)滑动，其中所述定子(28)的轴线(54)和所述内转子(16)的轴线(56)彼此相对具有偏移(60)，且所述定子(28)能够沿径向相对于所述内转子(16)进行调整，由此使得所述偏移(60)可以改变，所述定子(28)由夹具(34)部分地包绕，所述夹具(34)安装于所述叶片泵(12)的外壳(10)内的可枢转轴承(32)内，其特征在于，所述夹具(34)包括夹臂(36和38)，所述夹臂(36和38)在所述可枢转轴承(32)的两侧突出，并且所述夹臂(36和38)分别部分地包绕所述定子(28)。
2.如权利要求1所述的叶片泵，其特征在于，所述夹具(34)由于其夹臂(36和38)构成为叉形。
3.如权利要求1或2所述的叶片泵，其特征在于，两个所述夹臂(36和38)都能够液压地或气动地枢转。
4.如前述权利要求中任一项所述的叶片泵，其特征在于，夹臂能够借助于弹簧(58)移动。
5.如前述权利要求中任一项所述的叶片泵，其特征在于，所述定子(28)能够借助于弹簧(58)进行调整。
6.如权利要求4或5所述的叶片泵，其特征在于，所述弹簧(58)被预张紧。
7.如权利要求4至6中任一项所述的叶片泵，其特征在于，所述夹臂和/或所述定子(28)能够借助于所述弹簧(58)沿所述叶片泵(12)的最大输出量方向进行调整。
8.如前述权利要求中任一项所述的叶片泵，其特征在于，所述夹臂(36和38)的自由端(40和42)具有用于压力介质的活塞表面(44)。
9.如权利要求8所述的叶片泵，其特征在于，所述活塞表面(44)可移动地安装于设置在所述叶片泵(12)的外壳(10)内的导引件(50)内。
CN2006800091381A 2005-10-06 2006-08-11 叶片泵 Expired - Fee Related CN101147000B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE200510048602 DE102005048602B4 (de) 2005-10-06 2005-10-06 Flügelzellenmaschine, insbesondere Flügelzellenpumpe
DE102005048602.9 2005-10-06
DE102006021251A DE102006021251B4 (de) 2005-10-06 2006-04-28 Flügelzellenpumpe
DE102006021251.7 2006-04-28
PCT/EP2006/007943 WO2007039012A1 (de) 2005-10-06 2006-08-11 Flügelzellenpumpe

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CN101147000A true CN101147000A (zh) 2008-03-19
CN101147000B CN101147000B (zh) 2011-02-16

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CN200680008995XA Expired - Fee Related CN101147002B (zh) 2005-10-06 2006-08-11 叶片泵
CN2006800091381A Expired - Fee Related CN101147000B (zh) 2005-10-06 2006-08-11 叶片泵
CN2006800091447A Expired - Fee Related CN101147001B (zh) 2005-10-06 2006-09-22 叶片泵

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DE (1) DE102005048602B4 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102135095A (zh) * 2011-03-13 2011-07-27 深圳乐满商务服务有限公司 一种偏心式双转子泵
CN102224344A (zh) * 2008-11-29 2011-10-19 欧根·施密特博士仪器和泵制造有限责任公司 滑片泵

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CN102135095A (zh) * 2011-03-13 2011-07-27 深圳乐满商务服务有限公司 一种偏心式双转子泵

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CN101147002B (zh) 2010-08-11
DE102005048602B4 (de) 2011-01-13
DE102005048602A1 (de) 2007-04-12
CN101147000B (zh) 2011-02-16
CN101147001A (zh) 2008-03-19
CN101147002A (zh) 2008-03-19

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