EP1952027B1 - Rotary pump - Google Patents

Rotary pump Download PDF

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Publication number
EP1952027B1
EP1952027B1 EP06829152A EP06829152A EP1952027B1 EP 1952027 B1 EP1952027 B1 EP 1952027B1 EP 06829152 A EP06829152 A EP 06829152A EP 06829152 A EP06829152 A EP 06829152A EP 1952027 B1 EP1952027 B1 EP 1952027B1
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EP
European Patent Office
Prior art keywords
rotor
metal part
slot
pump according
sheet
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EP06829152A
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German (de)
French (fr)
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EP1952027A1 (en
Inventor
Willi Schneider
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Joma Polytec GmbH
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Joma Polytec GmbH
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Publication of EP1952027A1 publication Critical patent/EP1952027A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors

Definitions

  • the invention relates to a rotor pump having a pump housing with a pump chamber, a rotor rotatably mounted in the pump chamber with a slot extending transversely to the axis of rotation, a slidably mounted in the slot of the rotor blades, which divides the pump chamber into two chambers and abuts the inner peripheral wall of the pump chamber, so that the wing with respect to the rotor and the rotor with respect to the inner peripheral edge performs a relative movement, wherein the slot of the rotor is provided at both the wing-facing sides, each with a liner.
  • the US 2903971 discloses a rotor pump having the features of the preamble. From the EP 1 471 255 B1 is also known such a rotor pump.
  • This rotor pump has the advantage that it has a low weight, since it is made essentially of plastic, and has wear-reducing deposits on the wear-prone areas.
  • the wing on its flat sides deposits of ceramic, a sintered material or a hard plastic.
  • the wing can be provided at its wing tips with a metal insert. These deposits are poured or molded, for example.
  • the invention is therefore based on the object to provide a rotor pump, wherein the rotor is inexpensive and easy to manufacture and in which the rotor can be repaired in the event of wear.
  • the rotor should be disposed of sorted.
  • the insert is a sheet metal part, which surrounds the slot edges of the rotor with its ends facing the slot openings.
  • the rotor pump according to the invention therefore has a rotor, in which the sheet metal part is inserted after the manufacture of the rotor and in particular is fixed by the fact that the outwardly facing edges of the sheet metal part are bent around the edges of the slot openings.
  • the rotor can be produced relatively quickly without insert and there is no fear that portions of the rotor cool unevenly, since they are associated with components whose temperature coefficient and heat storage capacity is different than the material of the rotor.
  • the rotor can be manufactured with constant wall thicknesses, whereby a uniform cooling is supported and deformations during cooling are largely avoided. Another advantage is that such a rotor can be repaired in the event of wear merely by replacing the sheet metal part.
  • Another type of fixation of the sheet metal part on the rotor can be created via beads in the sheet metal part, in engage appropriate recordings on the rotor and prevent displacement of the sheet metal part.
  • the rotor and / or the wing may be made of plastic, wherein material pairings can be selected that can not be paired per se.
  • the PPS rotor and the blade may be made of a radiation crosslinked PA.
  • Other material combinations are now possible because the pressure surfaces of the wing do not come directly to the support surfaces of the rotor in combination.
  • the sheet metal part is an insert, which, as already mentioned, is inserted into the slot after the manufacture of the rotor. This can be done manually or mechanically.
  • the sheet metal part is e.g. inserted through one of the slot openings in the slot and in particular clipped in the rotor.
  • the sheet metal part undercuts, in which portions of the rotor, e.g. Protrusions or edges, intervene.
  • the sheet metal part has a straight, central portion and each having a terminal, by more than 90 ° angled portion.
  • the undercut is created in a simple manner, in which engage the edges of the slot end.
  • the middle section of the sheet-metal part has at least one groove running in the direction of the axis of rotation.
  • This groove is advantageously in the middle of the sheet metal part, ie in an area that supports the wing only insignificantly.
  • the purpose of the groove is inter alia to interrupt the surface supporting the wing, so that the wing does not suck against this surface, and the groove can be used to convey lubricant be used so that the sliding surface between the sheet metal part and wing permanently wetted by lubricant, which also has a cooling function.
  • the groove is open towards the wing.
  • the rotor is provided in a region behind the sheet metal part with a groove and the sheet metal part in the region of this groove has outlet openings for the lubricant.
  • the groove has the task to fix the sheet metal part against radial displacement without having to connect the sheet metal part frictionally with the rotor.
  • the groove is formed by a curved section, in particular with a circular segment-shaped cross section. This section engages in a recess with a corresponding shape in the rotor, so that the sheet metal part is held positively not only at its free edges, but also or possibly even only in its central region.
  • the sheet metal part consists of a spring steel sheet, so that it can be easily mounted on the rotor, for example by clipping or clip-on.
  • the sheet steel part made of spring steel and slight play between the rotor and wing can be compensated.
  • a simple and inexpensive production of the sheet metal part is made possible by a stamped and bent part. This can also be produced in different thicknesses, so that even during the assembly of the rotor eventual game is turned off, or so that different thickness wings can be used in the rotor.
  • FIG. 1 is designated by the reference numeral 10 a total designed as a vacuum pump rotor pump, in which the housing 12 is shown without housing cover.
  • the housing 12 has a suction port 14, which opens into an interior 16.
  • this interior 16 is a generally designated 18 rotor in which a wing 20 is mounted orthogonal to the axis of rotation 22 of the rotor 18 slidably.
  • the rotor 18 engages with its axis of rotation 22, the housing 12, in particular a bottom 26 of the inner space 16 via a drive opening 28 so that it can be driven from the outside via a rectangular portion 30.
  • the wing 20 is mounted in a rotor housing 24, which is described in more detail below.
  • This rotor housing 24 is supported by the rotation axis 22 and in rotation added.
  • the axis of rotation 22 and the rotor housing 24 made of PPS, whereas the wing 20 consists of a radiation-crosslinked PA.
  • FIG. 2 shows the rotor housing 24 in the direction of arrow II of FIG. 1 , It can be clearly seen that the rotor housing 24 has two receiving openings 32 for circular segment-shaped pins 34 which are provided on the axis of rotation 22 and protrude axially, and over which the rotor housing 24 is driven.
  • the wing 20 is slidably mounted in the direction of the double arrow 36.
  • the wing 20 touches with its wing tips 38, the inner peripheral surface 40 of the inner space 16 of a Statorbahnkurve only schematically illustrated 42, which may be formed as a separate component or is integrally formed in the housing 12.
  • the wing 20 is not directly adjacent to the one slot 44 forming slot surfaces 45, but on two sheet metal parts 46 which are inserted into the slot 44.
  • FIG. 3 shows the rotor housing 24 with the inserted into the slot 44 sheet metal parts 46, which is clearly seen that the sheet metal parts 46 have a central portion 48 and two portions 50 which form the opposite ends of the sheet metal parts 46 and protrude from the slot 44.
  • the sections 50 are angled more than 90 ° so that they enclose with the central section 48 an angle 52 of, for example, 60 °.
  • the sections 50 serve on the one hand for fastening the sheet metal parts 46 on the rotor housing 24, on the other hand for fixing the position so that they do not move with the wing 20.
  • each sheet metal part has 46 a in the axial direction of the axis of rotation 22 extending and concave in the direction of the wing 20 groove 56 (see FIG. 2 ).
  • the groove 56 is also used as a lubricant channel, so that the wing 20 is supplied over its entire height with lubricant, which by the reciprocation of the wing 20 in Direction of the double arrow 36 is distributed over the entire supporting and contact surface.
  • the lubricating oil also reaches the wing tips 38 and thus the inner circumferential surface 40 of the stator track curve 42 from this support surface.
  • the supply of the grooves 56 with lubricating oil takes place centrally via the axis of rotation 22.
  • the rotor housing 24 may be made entirely of plastic and be prepared without sheet metal part 46, since this is either fixed by clipping on the rotor housing 24 or inserted in the direction of the arrow 58.
  • the sections 50 engage in corresponding depressions or recesses 60, which are provided on the outside of the edge 62 of the slot 44.
  • the sheet metal part 46 is made of spring steel and the angle 52 between the sections 50 and 48 is selected so that the sheet metal part 46, in particular the portions 50, rest against the recesses 60 with low tension.
  • the inventive design of the rotor pump 10 and in particular of the rotor housing 24 has the significant advantage that the rotor housing 24 can be produced without insert as an injection molded part and after its completion and optionally mechanical processing, the sheet metal part 46 is used. This sheet metal part 46 is either clipped or inserted and can be easily removed for unmixed disposal again.
  • a significant advantage is also that a rotor housing 24 are then paired with a wing 20 can, if the two components are made of materials, which actually should not be paired from a tribological point of view. These are, for example, PPS and radiation-crosslinked PA.
  • the bead 24 prevents a firm suction of the wing 20 on the sliding surface of the sheet metal part 46, wherein of course also further parallel or oblique beads can be provided.

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

Abstract

The invention relates to a rotary pump which comprises a pump housing (12) with a pump chamber, a rotor (18), mounted to rotate in the pump chamber and having a slot (44) extending at an angle to the axis of rotation, a vane (20), mounted in the slot of the rotor to be displaceable therein, said vane subdividing the pump chamber into two compartments and resting against the inner circumferential wall of the pump chamber. The vane carries out a relative movement with respect to rotor and the rotor a relative movement with respect to the inner circumferential wall. The slot of the rotor has a respective insert (46) on both sides facing the vane, said insert being a sheet metal part and enclosing the slot edges with its ends facing the slot openings.

Description

Die Erfindung betrifft eine Rotorpumpe mit einem Pumpengehäuse mit einem Pumpenraum, einem im Pumpenraum drehbar gelagerten Rotor mit einem quer zur Drehachse verlaufenden Schlitz, einem im Schlitz des Rotors verschieblich gelagerten Flügel, der den Pumpenraum in zwei Kammern unterteilt und an der Innenumfangswand des Pumpenraums anliegt, sodass der Flügel bezüglich des Rotors und der Rotor bezüglich der Innenumfangsand eine Relativbewegung ausführt, wobei der Schlitz des Rotors an beiden dem Flügel zugewandten Seiten mit jeweils einer Einlage versehen ist.The invention relates to a rotor pump having a pump housing with a pump chamber, a rotor rotatably mounted in the pump chamber with a slot extending transversely to the axis of rotation, a slidably mounted in the slot of the rotor blades, which divides the pump chamber into two chambers and abuts the inner peripheral wall of the pump chamber, so that the wing with respect to the rotor and the rotor with respect to the inner peripheral edge performs a relative movement, wherein the slot of the rotor is provided at both the wing-facing sides, each with a liner.

Die US 2903971 offenbart eine Rotorpumpe mit den Merkmalen des Oberbegriffs. Aus der EP 1 471 255 B1 ist auch eine solche Rotorpumpe bekannt. Diese Rotorpumpe hat den Vorteil, dass sie ein geringes Gewicht aufweist, da sie im Wesentlichen aus Kunststoff hergestellt ist, und an den verschleißträchtigen Stellen verschleißmindernde Einlagen besitzt. So weist der Flügel an seinen Flachseiten Einlagen aus Keramik, einem Sinterwerkstoff oder einem harten Kunststoff auf. Außerdem kann der Flügel an seinen Flügelspitzen mit einer Metalleinlage versehen sein. Diese Einlagen werden zum Beispiel eingegossen oder umspritzt.The US 2903971 discloses a rotor pump having the features of the preamble. From the EP 1 471 255 B1 is also known such a rotor pump. This rotor pump has the advantage that it has a low weight, since it is made essentially of plastic, and has wear-reducing deposits on the wear-prone areas. Thus, the wing on its flat sides deposits of ceramic, a sintered material or a hard plastic. In addition, the wing can be provided at its wing tips with a metal insert. These deposits are poured or molded, for example.

Dieses Herstellungsverfahren ist aufwändig, da die Einsätze in die Spritzgussform oder in die Druckgussform eingelegt werden müssen. Außerdem können derartige Rotoren nicht repariert werden, falls die Einsätze beschädigt werden oder verschlissen sind. Außerdem besteht die Gefahr, dass beim Eingießen oder Umspritzen der Einsätze diese ihre vorgegebene Lage verändern, was zu Abweichungen in der Maßhaltigkeit des Rotors im Bereich der Aufnahme für den Flügel führt, so dass dort entweder ein zu großes oder ein kleines Spiel herrscht. Die führt entweder zu einem übermäßigen Verschleiß oder zu einem schlechten Wirkungsgrad der Rotorpumpe.This manufacturing process is complicated, since the inserts must be inserted into the injection mold or in the die casting mold. In addition, such rotors can not be repaired if the inserts are damaged or worn. In addition, there is a risk that when pouring or encapsulating the inserts change their predetermined position, resulting in deviations in the dimensional accuracy of the Rotor in the area of the recording for the wing leads, so that there is either a too big or a small game. This leads either to excessive wear or poor efficiency of the rotor pump.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Rotorpumpe bereitzustellen, bei welcher der Rotor preiswert und einfach herstellbar ist und bei welcher der Rotor im Verschleißfalle repariert werden kann. Außerdem soll der Rotor sortenrein entsorgt werden können.The invention is therefore based on the object to provide a rotor pump, wherein the rotor is inexpensive and easy to manufacture and in which the rotor can be repaired in the event of wear. In addition, the rotor should be disposed of sorted.

Diese Aufgabe wird mit einer Rotorpumpe der eingangs genannten erfindungsgemäß dadurch gelöst, dass die Einlage ein Blechteil ist, das mit seinen den Schlitzöffnungen zugewandten Enden die Schlitzränder des Rotors umgreift.This object is achieved with a rotor pump of the aforementioned invention in that the insert is a sheet metal part, which surrounds the slot edges of the rotor with its ends facing the slot openings.

Die erfindungsgemäße Rotorpumpe weist demnach einen Rotor auf, in welchen das Blechteil nach der Herstellung des Rotors eingesetzt ist und insbesondere dadurch befestigt wird, dass die nach außen weisenden Kanten des Blechteils um die Ränder der Schlitzöffnungen gebogen sind. Zum einen kann der Rotor ohne Einlegeteil relativ schnell hergestellt werden und es ist nicht zu befürchten, dass Abschnitte des Rotors ungleichmäßig abkühlen, da sie mit Bauteilen in Verbindung stehen, deren Temperaturkoeffizient und Wärmespeicherkapazität anders ist, als beim Material des Rotors. Außerdem kann der Rotor mit gleichbleibenden Wanddicken hergestellt werden, wodurch eine gleichmäßige Abkühlung unterstützt wird und Verformungen bei der Abkühlung weitestgehend vermieden werden. Ein weiterer Vorteil beseht darin, dass ein derartiger Rotor im Verschleißfalle repariert werden kann, indem lediglich das Blechteil ausgetauscht wird. Eine andere Art der Fixierung des Blechteils am Rotor kann über Sicken im Blechteil geschaffen werden, die in entsprechende Aufnahmen am Rotor eingreifen und ein Verschieben des Blechteils verhindern.The rotor pump according to the invention therefore has a rotor, in which the sheet metal part is inserted after the manufacture of the rotor and in particular is fixed by the fact that the outwardly facing edges of the sheet metal part are bent around the edges of the slot openings. On the one hand, the rotor can be produced relatively quickly without insert and there is no fear that portions of the rotor cool unevenly, since they are associated with components whose temperature coefficient and heat storage capacity is different than the material of the rotor. In addition, the rotor can be manufactured with constant wall thicknesses, whereby a uniform cooling is supported and deformations during cooling are largely avoided. Another advantage is that such a rotor can be repaired in the event of wear merely by replacing the sheet metal part. Another type of fixation of the sheet metal part on the rotor can be created via beads in the sheet metal part, in engage appropriate recordings on the rotor and prevent displacement of the sheet metal part.

Da das Blechteil naturgemäß aus einem Metall besteht, können der Rotor und/oder der Flügel aus Kunststoff bestehen, wobei auch Materialpaarungen gewählt werden können, die an sich nicht gepaart werden können. Zum Beispiel kann der Rotor aus PPS und der Flügel aus einem strahlenvernetzten PA bestehen. Auch andere Materialpaarungen sind nunmehr möglich, da die Druckflächen des Flügels nicht direkt mit den Abstützflächen des Rotors in Verbindung kommen.Since the sheet metal part is naturally made of a metal, the rotor and / or the wing may be made of plastic, wherein material pairings can be selected that can not be paired per se. For example, the PPS rotor and the blade may be made of a radiation crosslinked PA. Other material combinations are now possible because the pressure surfaces of the wing do not come directly to the support surfaces of the rotor in combination.

Vorzugsweise ist das Blechteil ein Einlegeteil, welches, wie bereits erwähnt, nach der Herstellung des Rotors in den Schlitz eingesetzt wird. Dieses kann manuell oder mechanisch erfolgen. Dabei wird das Blechteil z.B. über eine der Schlitzöffnungen in den Schlitz eingeführt und insbesondere im Rotor verclipst. Hierfür weist das Blechteil Hinterschneidungen auf, in welche Abschnitte des Rotors, z.B. Vorsprünge oder Kanten, eingreifen.Preferably, the sheet metal part is an insert, which, as already mentioned, is inserted into the slot after the manufacture of the rotor. This can be done manually or mechanically. The sheet metal part is e.g. inserted through one of the slot openings in the slot and in particular clipped in the rotor. For this purpose, the sheet metal part undercuts, in which portions of the rotor, e.g. Protrusions or edges, intervene.

Gemäß einem bevorzugten Ausführungsbeispiel weist das Blechteil einen gerade verlaufenden, mittleren Abschnitt und jeweils einen endständigen, um mehr als 90° abgewinkelten Abschnitt auf. Hierdurch wird auf einfache Weise der Hinterschnitt geschaffen, in welchen die Ränder des Schlitzendes eingreifen.According to a preferred embodiment, the sheet metal part has a straight, central portion and each having a terminal, by more than 90 ° angled portion. As a result, the undercut is created in a simple manner, in which engage the edges of the slot end.

Eine Weiterbildung sieht vor, dass der mittlere Abschnitt des Blechteils wenigsten eine in Richtung der Drehachse verlaufende Nut aufweist. Diese Nut verläuft vorteilhaft in der Mitte des Blechteils, also in einem Bereich, der den Flügel nur unmaßgeblich abstützt. Die Nut besitzt unter anderem die Aufgabe, die den Flügel abstützende Fläche zu unterbrechen, so dass sich der Flügel nicht an diese Fläche ansaugt, und die Nut kann zur Förderung von Schmiermittel verwendet werden, so dass die Gleitfläche zwischen Blechteil und Flügel permanent von Schmiermittel, welches auch eine kühlende Funktion besitzt, benetzt wird.A further embodiment provides that the middle section of the sheet-metal part has at least one groove running in the direction of the axis of rotation. This groove is advantageously in the middle of the sheet metal part, ie in an area that supports the wing only insignificantly. The purpose of the groove is inter alia to interrupt the surface supporting the wing, so that the wing does not suck against this surface, and the groove can be used to convey lubricant be used so that the sliding surface between the sheet metal part and wing permanently wetted by lubricant, which also has a cooling function.

Um das Schmiermittel ohne Weiteres an den Flügel abgeben zu können, ist die Nut in Richtung auf den Flügel offen. Es besteht aber auch die Möglichkeit, dass der Rotor in einem Bereich hinter dem Blechteil mit einer Nut versehen ist und das Blechteil im Bereich dieser Nut Austrittsöffnungen für das Schmiermittel aufweist.In order to deliver the lubricant readily to the wing, the groove is open towards the wing. But there is also the possibility that the rotor is provided in a region behind the sheet metal part with a groove and the sheet metal part in the region of this groove has outlet openings for the lubricant.

Zudem besitzt die Nut die Aufgabe, das Blechteil gegen radiale Verschiebung zu fixieren, ohne das Blechteil kraftschlüssig mit dem Rotor verbinden zu müssen. Vorzugsweise wird die Nut von einem gebogenen Teilabschnitt, insbesondere mit einem kreissegmentförmigen Querschnitt, gebildet. Dieser Abschnitt greift in eine Ausnehmung mit einer entsprechenden Form im Rotor ein, so dass das Blechteil nicht nur an seinen freien Kanten, sondern auch oder eventuell sogar nur in seinem mittleren Bereich formschlüssig gehalten wird.In addition, the groove has the task to fix the sheet metal part against radial displacement without having to connect the sheet metal part frictionally with the rotor. Preferably, the groove is formed by a curved section, in particular with a circular segment-shaped cross section. This section engages in a recess with a corresponding shape in the rotor, so that the sheet metal part is held positively not only at its free edges, but also or possibly even only in its central region.

Vorzugsweise besteht das Blechteil aus einem Federstahlblech, so dass es zum Beispiel durch Ein- oder Aufclipsen leicht am Rotor montierbar ist. Außerdem kann mittels eines aus Federstahl bestehenden Blechteils auch geringfügiges Spiel zwischen Rotor und Flügel ausgeglichen werden.Preferably, the sheet metal part consists of a spring steel sheet, so that it can be easily mounted on the rotor, for example by clipping or clip-on. In addition, by means of a sheet steel part made of spring steel and slight play between the rotor and wing can be compensated.

Eine einfache und preiswerte Herstellung des Blechteils wird durch ein Stanzbiegeteil ermöglicht. Dieses kann auch in unterschiedlichen Dicken hergestellt werden, so dass bereits bei der Montage des Rotors eventuelles Spiel ausgeschaltet wird, beziehungsweise so dass unterschiedlich dicke Flügel in den Rotor eingesetzt werden können.A simple and inexpensive production of the sheet metal part is made possible by a stamped and bent part. This can also be produced in different thicknesses, so that even during the assembly of the rotor eventual game is turned off, or so that different thickness wings can be used in the rotor.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein besonders bevorzugtes Ausführungsbeispiel im Einzelnen beschrieben ist. Dabei können die in der Zeichnung dargestellten sowie in der Beschreibung und in den Ansprüchen erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein.Further advantages, features and details of the invention will become apparent from the subclaims and the following description in which, with reference to the drawing, a particularly preferred embodiment is described in detail. The features shown in the drawing and mentioned in the description and in the claims may each be essential to the invention individually or in any combination.

In der Zeichnung zeigen:

Figur 1
eine Explosionsdarstellung einer Rotorpumpe;
Figur 2
eine perspektivische Darstellung des Rotors mit einer Blickrichtung II gemäß Figur sowie angedeuteter Statorbahnkurve;
Figur 3
eine perspektivische Darstellung des Rotors gemäß Figur 2; und
Figur 4
der Rotor gemäß Figur 3 mit abgenommenem Blechteil.
In the drawing show:
FIG. 1
an exploded view of a rotor pump;
FIG. 2
a perspective view of the rotor with a viewing direction II according to the figure and indicated Statorbahnkurve;
FIG. 3
a perspective view of the rotor according to FIG. 2 ; and
FIG. 4
the rotor according to FIG. 3 with removed sheet metal part.

In der Figur 1 ist mit dem Bezugzeichen 10 insgesamt eine als Vakuumpumpe ausgebildete Rotorpumpe bezeichnet, bei welcher das Gehäuse 12 ohne Gehäusedeckel dargestellt ist. Das Gehäuse 12 besitzt einen Sauganschluss 14, der in einen Innenraum 16 mündet. In diesem Innenraum 16 befindet sich ein insgesamt mit 18 bezeichneter Rotor, in welchem ein Flügel 20 orthogonal zur Drehachse 22 des Rotors 18 verschieblich gelagert ist. Der Rotor 18 durchgreift mit seiner Drehachse 22 das Gehäuse 12, insbesondere einen Boden 26 des Innenraums 16 über eine Antriebsöffnung 28, so dass er von außen über einen rechteckförmigen Abschnitt 30 angetrieben werden kann.In the FIG. 1 is designated by the reference numeral 10 a total designed as a vacuum pump rotor pump, in which the housing 12 is shown without housing cover. The housing 12 has a suction port 14, which opens into an interior 16. In this interior 16 is a generally designated 18 rotor in which a wing 20 is mounted orthogonal to the axis of rotation 22 of the rotor 18 slidably. The rotor 18 engages with its axis of rotation 22, the housing 12, in particular a bottom 26 of the inner space 16 via a drive opening 28 so that it can be driven from the outside via a rectangular portion 30.

Der Flügel 20 ist in einem Rotorgehäuse 24 gelagert, was nachfolgend noch näher beschrieben ist. Dieses Rotorgehäuse 24 wird von der Drehachse 22 gelagert und in Drehung versetzt. Dabei bestehen die Drehachse 22 und das Rotorgehäuse 24 aus PPS, wohingegen der Flügel 20 aus einem strahlenvernetzten PA besteht.The wing 20 is mounted in a rotor housing 24, which is described in more detail below. This rotor housing 24 is supported by the rotation axis 22 and in rotation added. In this case, the axis of rotation 22 and the rotor housing 24 made of PPS, whereas the wing 20 consists of a radiation-crosslinked PA.

Die Figur 2 zeigt das Rotorgehäuse 24 mit Blickrichtung gemäß Pfeil II von Figur 1. Dabei ist deutlich erkennbar, dass das Rotorgehäuse 24 zwei Aufnahmeöffnungen 32 für kreissegmentförmige Zapfen 34 aufweist, die an der Drehachse 22 vorgesehen sind und axial abragen, und über welche das Rotorgehäuse 24 angetrieben wird. Im Rotorgehäuse 24 ist der Flügel 20 in Richtung des Doppelpfeils 36 verschieblich gelagert. Dabei berührt der Flügel 20 mit seinen Flügelspitzen 38 die Innenumfangsfläche 40 des Innenraums 16 einer nur schematisch dargestellten Statorbahnkurve 42, die als separates Bauteil ausgebildet sein kann oder einstückig im Gehäuse 12 ausgebildet ist. Ferner ist erkennbar, dass der Flügel 20 nicht direkt an den einen Schlitz 44 bildenden Schlitzflächen 45 anliegt, sondern an zwei Blechteilen 46, welche in den Schlitz 44 eingelegt sind.The FIG. 2 shows the rotor housing 24 in the direction of arrow II of FIG. 1 , It can be clearly seen that the rotor housing 24 has two receiving openings 32 for circular segment-shaped pins 34 which are provided on the axis of rotation 22 and protrude axially, and over which the rotor housing 24 is driven. In the rotor housing 24, the wing 20 is slidably mounted in the direction of the double arrow 36. The wing 20 touches with its wing tips 38, the inner peripheral surface 40 of the inner space 16 of a Statorbahnkurve only schematically illustrated 42, which may be formed as a separate component or is integrally formed in the housing 12. Furthermore, it can be seen that the wing 20 is not directly adjacent to the one slot 44 forming slot surfaces 45, but on two sheet metal parts 46 which are inserted into the slot 44.

Die Figur 3 zeigt das Rotorgehäuse 24 mit den in den Schlitz 44 eingelegten Blechteilen 46, wobei deutlich erkennbar ist, dass die Blechteile 46 einen mittleren Abschnitt 48 sowie zwei Abschnitte 50 aufweisen, die die gegenüberliegenden Enden der Blechteile 46 bilden und aus dem Schlitz 44 herausragen. Die Abschnitte 50 sind um mehr als 90° abgewinkelt, so dass sie mit dem mittleren Abschnitt 48 einen Winkel 52 von zum Beispiel 60° einschließen. Die Abschnitte 50 dienen zum einen zur Befestigung der Blechteile 46 am Rotorgehäuse 24, zum anderen zur Lagefixierung, so dass sie sich nicht mit dem Flügel 20 mitbewegen.The FIG. 3 shows the rotor housing 24 with the inserted into the slot 44 sheet metal parts 46, which is clearly seen that the sheet metal parts 46 have a central portion 48 and two portions 50 which form the opposite ends of the sheet metal parts 46 and protrude from the slot 44. The sections 50 are angled more than 90 ° so that they enclose with the central section 48 an angle 52 of, for example, 60 °. The sections 50 serve on the one hand for fastening the sheet metal parts 46 on the rotor housing 24, on the other hand for fixing the position so that they do not move with the wing 20.

Die Fixierung wird dadurch noch unterstützt, dass die Schlitzflächen 45 des Rotorgehäuses 24 jeweils eine Sicke 54 für die Blechteile 46 aufweisen, in welche die Blechteile 46 formschlüssig eingreifen. Hierfür besitzt jedes Blechteil 46 eine in Achsrichtung der Drehachse 22 verlaufende und in Richtung des Flügels 20 konkave Nut 56 (siehe Figur 2). Hierdurch wird nicht nur ein optimaler Formschluss zwischen Rotorgehäuse 24 und Blechteil 46 geschaffen, sondern die Nut 56 wird auch als Schmiermittelkanal verwendet, so dass der Flügel 20 über seine gesamte Höhe mit Schmiermittel versorgt wird, welches durch die Hin- und Herbewegung des Flügels 20 in Richtung des Doppelpfeils 36 über die gesamte Stütz- und Anlagefläche verteilt wird. Von dieser Stützfläche gelangt das Schmieröl schließlich auch zu den Flügelspitzen 38 und somit zur Innenumfangsfläche 40 der Statorbahnkurve 42. Die Versorgung der Nuten 56 mit Schmieröl erfolgt zentral über die Drehachse 22.The fixation is still supported by the fact that the slot surfaces 45 of the rotor housing 24 each have a bead 54 for the sheet metal parts 46, in which the sheet metal parts 46 engage positively. For this purpose, each sheet metal part has 46 a in the axial direction of the axis of rotation 22 extending and concave in the direction of the wing 20 groove 56 (see FIG. 2 ). As a result, not only is an optimal form fit between the rotor housing 24 and sheet metal part 46 created, but the groove 56 is also used as a lubricant channel, so that the wing 20 is supplied over its entire height with lubricant, which by the reciprocation of the wing 20 in Direction of the double arrow 36 is distributed over the entire supporting and contact surface. Finally, the lubricating oil also reaches the wing tips 38 and thus the inner circumferential surface 40 of the stator track curve 42 from this support surface. The supply of the grooves 56 with lubricating oil takes place centrally via the axis of rotation 22.

Wie aus Figur 4 ersichtlich, kann das Rotorgehäuse 24 vollständig aus Kunststoff bestehen und ohne Blechteil 46 hergestellt werden, da dieses entweder durch Einclipsen am Rotorgehäuse 24 befestigt wird oder in Richtung des Pfeils 58 eingeschoben wird. Dabei greifen die Abschnitte 50 in entsprechende Einsenkungen oder Ausnehmungen 60, welche an der Außenseite des Randes 62 des Schlitzes 44 vorgesehen sind. Das Blechteil 46 besteht aus Federstahl und der Winkel 52 zwischen den Abschnitten 50 und 48 ist so gewählt, dass das Blechteil 46, insbesondere die Abschnitte 50, mit geringer Spannung an den Ausnehmungen 60 anliegen.How out FIG. 4 As can be seen, the rotor housing 24 may be made entirely of plastic and be prepared without sheet metal part 46, since this is either fixed by clipping on the rotor housing 24 or inserted in the direction of the arrow 58. The sections 50 engage in corresponding depressions or recesses 60, which are provided on the outside of the edge 62 of the slot 44. The sheet metal part 46 is made of spring steel and the angle 52 between the sections 50 and 48 is selected so that the sheet metal part 46, in particular the portions 50, rest against the recesses 60 with low tension.

Die erfindungsgemäße Ausgestaltung der Rotorpumpe 10 und insbesondere des Rotorgehäuses 24 besitzt den wesentlichen Vorteil, dass das Rotorgehäuse 24 ohne Einlegeteil als Spritzgussteil hergestellt werden kann und nach dessen Fertigstellung und gegebenenfalls mechanischer Bearbeitung das Blechteil 46 eingesetzt wird. Dieses Blechteil 46 wird entweder eingeclipst oder eingeschoben und kann zum sortenreinen Entsorgen auch wieder problemlos entfernt werden. Ein wesentlicher Vorteil besteht auch darin, dass ein Rotorgehäuse 24 auch dann mit einem Flügel 20 gepaart werden kann, wenn die beiden Bauteile aus Materialien bestehen, die eigentlich aus tribologischer Sicht nicht gepaart werden dürfen. Dies sind zum Beispiel PPS und strahlenvernetztes PA. Ferner verhindert die Sicke 24 ein Festsaugen des Flügels 20 an der Gleitfläche des Blechteils 46, wobei selbstverständlich auch noch weitere parallel oder schräg verlaufenden Sicken vorgesehen sein können.The inventive design of the rotor pump 10 and in particular of the rotor housing 24 has the significant advantage that the rotor housing 24 can be produced without insert as an injection molded part and after its completion and optionally mechanical processing, the sheet metal part 46 is used. This sheet metal part 46 is either clipped or inserted and can be easily removed for unmixed disposal again. A significant advantage is also that a rotor housing 24 are then paired with a wing 20 can, if the two components are made of materials, which actually should not be paired from a tribological point of view. These are, for example, PPS and radiation-crosslinked PA. Furthermore, the bead 24 prevents a firm suction of the wing 20 on the sliding surface of the sheet metal part 46, wherein of course also further parallel or oblique beads can be provided.

Claims (13)

  1. Rotor pump (10) having a casing (12) which has an internal chamber (16), having a rotor (18) which is rotatably mounted in the internal chamber (16) and which has a slot (44) extending transversely to the axis of rotation (22), having a vane (20) which is displaceably mounted in the slot (44) in the rotor (18) and which divides the internal chamber (16) into two chambers and rests against the inner circumferential surface (40) of the internal chamber (16), thus causing the vane (20) to perform a movement relative to the rotor (18) and the rotor (18) to perform a movement relative to the inner circumferential surface (40), the slot (44) in the rotor (18) being provided with an insert on each of the two sides (45) adjacent the vane (40), the insert being a sheet-metal part (46), characterised in that the ends of the sheet-metal part (46) which are adjacent the openings of the slot fit round the edges (62) of the slot.
  2. Rotor pump according to claim 1, characterised in that the rotor (18) and/or the vane (20) are composed of plastics material.
  3. Rotor pump according to one of the preceding claims, characterised in that the sheet-metal part (46) is an inserted part.
  4. Rotor pump according to one of the preceding claims, characterised in that the sheet-metal part (46) has a central portion (48) extending in a straight line and a portion (50) at each end which is angled round through more than 90°.
  5. Rotor pump according to claim 4, characterised in that the central portion (48) has at least one groove (56) extending in the direction defined by the axis of rotation (22).
  6. Rotor pump according to claim 5, characterised in that the groove (56) is open in the direction leading to the vane (22).
  7. Rotor pump according to claim 5 or 6, characterised in that the groove (56) is formed by a curved sub-section.
  8. Rotor pump according to one of claims 5 to 7, characterised in that the groove (56) has a cross-sectional shape in the form of a sector of a circle.
  9. Rotor pump according to one of the preceding claims, characterised in that the sheet-metal part (46) is fastened to the rotor (18) by positive interengagement.
  10. Rotor pump according to one of the preceding claims, characterised in that the sheet-metal part (46) is inserted in the openings of the slot via one thereof.
  11. Rotor pump according to one of the preceding claims, characterised in that the sheet-metal part (46) is composed of spring steel.
  12. Rotor pump according to one of the preceding claims, characterised in that the sheet-metal part (46) is clipped into the rotor (18).
  13. Rotor pump according to one of the preceding claims, characterised in that the sheet-metal part (46) is a part which is stamped or punched and bent.
EP06829152A 2006-03-31 2006-11-28 Rotary pump Active EP1952027B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610016244 DE102006016244A1 (en) 2006-03-31 2006-03-31 Rotor pump e.g. vacuum pump, has rotor rotatably supported within interior space of pump housing, where slot of rotor is provided with inserts respectively placed at both sides facing impeller, where insert is steel sheet piece
PCT/EP2006/011397 WO2007118501A1 (en) 2006-03-31 2006-11-28 Rotary pump

Publications (2)

Publication Number Publication Date
EP1952027A1 EP1952027A1 (en) 2008-08-06
EP1952027B1 true EP1952027B1 (en) 2011-03-09

Family

ID=37814580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06829152A Active EP1952027B1 (en) 2006-03-31 2006-11-28 Rotary pump

Country Status (3)

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EP (1) EP1952027B1 (en)
DE (2) DE102006016244A1 (en)
WO (1) WO2007118501A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010023137B4 (en) * 2010-06-09 2019-02-07 Mahle International Gmbh Rotary vane pump
EP2580477B1 (en) 2010-06-09 2017-07-12 Mahle International GmbH Rotary vane pump
DE102010026031A1 (en) 2010-07-03 2012-01-05 Mahle International Gmbh Rotary vane pump has rotor, which is rotatably mounted in interior space and has slot running perpendicular to rotational axis and blade movably supported in slot of rotor
WO2012010397A2 (en) * 2010-07-03 2012-01-26 Mahle International Gmbh Rotary vane pump
DE102010026033A1 (en) 2010-07-03 2012-01-05 Mahle International Gmbh Rotary vane pump for use as component of brake booster in motor car, has wing comprising guide contour that is guided in guide track introduced on front wall, so that wing doses not contact with inner circumference web of inner space
DE102010026034A1 (en) 2010-07-03 2012-01-05 Mahle International Gmbh Rotary vane pump for brake booster of motor car, has rotor rotatably mounted in inner space, and rolling bodies provided at longitudinal ends of vane, where vane is unrolled on inner circumference trajectory over rolling bodies
DE102010026035A1 (en) 2010-07-03 2012-01-05 Mahle International Gmbh Rotary vane pump for brake booster in motor car, has chambers whose longitudinal ends are rotatably fixed in inner space along inner circumference trajectory, and roller bearing device provided at rotor in region of slot
DE102019120147A1 (en) * 2019-07-25 2021-01-28 Bayerische Motoren Werke Aktiengesellschaft Pump rotor and vacuum pump with such a rotor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1626510A (en) * 1925-08-18 1927-04-26 Universal Candy And Chocolate Rotary pump
GB278382A (en) * 1926-09-30 1927-12-22 Swiss Locomotive & Machine Works Improvements connected with the pistons of rotary compressors
GB324414A (en) * 1928-10-30 1930-01-30 Ettore Lanzerotti Spina Improvements in rotary pumps and blowers
GB565447A (en) * 1943-09-23 1944-11-10 Arthur Cyril Thornton Improvements in or relating to engine driven rotary air compressors for aero engines
US2903971A (en) * 1957-05-27 1959-09-15 Lowell J Collins Pumps
JPS55151190A (en) * 1979-05-11 1980-11-25 Nissan Motor Co Ltd Movable vane type rotary compressor
JPS5688979U (en) * 1979-12-11 1981-07-16
JPS5954791A (en) * 1983-07-25 1984-03-29 Matsushita Electric Ind Co Ltd Eccentric rotary pump
JPS61152987A (en) * 1984-12-26 1986-07-11 Nippon Piston Ring Co Ltd Manufacture of rotor for rotary fluid pump
DE50300812D1 (en) * 2003-04-24 2005-08-25 Joma Hydromechanic Gmbh Vane pump

Also Published As

Publication number Publication date
EP1952027A1 (en) 2008-08-06
DE502006009072D1 (en) 2011-04-21
DE102006016244A1 (en) 2007-10-04
WO2007118501A1 (en) 2007-10-25

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