EP0174536A1 - Rotating hose pump - Google Patents

Rotating hose pump Download PDF

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Publication number
EP0174536A1
EP0174536A1 EP85110579A EP85110579A EP0174536A1 EP 0174536 A1 EP0174536 A1 EP 0174536A1 EP 85110579 A EP85110579 A EP 85110579A EP 85110579 A EP85110579 A EP 85110579A EP 0174536 A1 EP0174536 A1 EP 0174536A1
Authority
EP
European Patent Office
Prior art keywords
hose
rollers
rotor
pump
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP85110579A
Other languages
German (de)
French (fr)
Inventor
Horst Bender
Günter Jacob
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linnhoff & Thesenfitz Maschinen- und Anlagenbau GmbH
Original Assignee
Linnhoff & Thesenfitz Maschinen- und Anlagenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linnhoff & Thesenfitz Maschinen- und Anlagenbau GmbH filed Critical Linnhoff & Thesenfitz Maschinen- und Anlagenbau GmbH
Publication of EP0174536A1 publication Critical patent/EP0174536A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing

Definitions

  • Rotary peristaltic pumps for conveying pasty masses are known.
  • the promotion takes place with an essentially two-armed rotor, at the ends of which rollers are rotatably mounted.
  • the rollers run over a hose, which is supported on the opposite side of the rollers on the cylindrical inside of the pump housing.
  • the hose ends are connected to the pump inlet and the pump outlet.
  • the hose is filled with the mass to be conveyed.
  • the tube is pressed onto the housing in such a way that the tube sections in front of and behind each roller are separated from one another during a certain operating range and the tube sections thus created contain parts of the mass to be conveyed which are separate from one another.
  • the mass in the hose area between the two rollers is shifted between the inlet and outlet in the hose with the rotor rotating, the mass located between the first roller in the direction of rotation and the outlet is conveyed out of the pump outlet.
  • the mass to be conveyed is introduced into the hose from a storage container.
  • the hose is displaced by the rollers acting on it in the direction of the pump outlet when the rotor rotates, and springs back when one of the rollers detaches from the hose in the region of the pump outlet.
  • these axial displacements are relatively small, in the case of high-speed pumps their frequency is nevertheless the cause of premature wear or a limited service life of the hose compared to the other parts of the pump.
  • the object of the invention is to remedy this, in particular if the drive of the rollers is derived from the drive of the rotor.
  • a toothing extending transversely to the direction of movement is proposed between the rollers and the hose and / or the hose and its support surface.
  • a pump according to the invention is shown in the drawing as a central longitudinal section.
  • a hose 2 lies against the cylindrical inner wall of the pump housing 1.
  • the pump housing 1 is evacuated.
  • the inlet end 3 of the hose 2 is connected to a reservoir 4 for ready-mixed concrete to be processed.
  • Its outlet end 5 is connected to a manifold system 6.
  • a rotor 7 rotates in the housing 1, the conveying direction of which is indicated by the arrow 8.
  • 7 rollers 9, 10 are rotatably mounted on the rotor. If the rotor 7 rotates in the direction of the arrow 8, the rollers 9, 10 rotate in the direction of the arrows 11 because they run over the hose 2 with the rotor 7 rotating.
  • the distance between the rollers 9, 10 and the inner wall of the housing is dimensioned such that, in the region of the rollers 9, 10, the tube 2 is placed on the wall of the wall lying on the wall, and so in the operating position shown there are three separate chamber sections: the first section 12 between the circumferential direction in front of its roller 9 and the pump outlet 5, the second section 13 between the two rollers 9, 10 and the third section 14 between the circumferential rear roller 10 and the pump inlet 3.
  • the concrete in the first section 12 is conveyed in the direction of arrow 15 in the pipe system 6 and therein to the processing point, the concrete in the second section 13 is pushed in the direction of arrow 16 to the outlet 5 and in the third section 14, concrete from the reservoir 4 in the hose 2 in the direction of the arrow 17 sucked in or inserted with a feed wheel 4a.
  • rollers 18 of the rotor 7 are arranged between the two rollers in both circumferential directions, although only half of them are shown, while from the other half of the rollers 18 only the bearing holes of the rotor 7 are shown, which are arranged in the front of the rotor consisting of two shields, the the front plate in the left area of the drawing has broken away (breaking edge 19).
  • the hose is axially displaced in the longitudinal direction against the outlet 5 by the front roller in the circumferential direction, thereby initially sagging and springing back when the roller has detached itself from the hose.
  • a guide in the form of a transverse toothing 20 is provided in particular between the rollers 3, 5 and the hose 2, optionally also alternatively or additively between the hose and the housing wall.
  • This toothing also facilitates the insertion of the hose into the housing by inserting the hose with its toothing between the housing wall and the roller closer to the inlet and then being drawn in very precisely with the rotor rotating.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

A pasty mass is conveyed through a hose (2) by virtue of the fact that the hose is supported by its outer face against a housing (1) and a pair of rollers (9, 10), which are rotatably mounted at the ends of a rotatable arm and markedly reduce the inside diameter of the hose (2) in the region of contact, is guided over the inner face of the said hose. The supporting face is curved about the centre of rotation of the arm. The hose is guided by the provision of a toothing (20), lying transversely to the direction of motion (8) of the rollers (9, 10), between the said hose, on the one hand, and the supporting face and/or the rollers (9, 10), on the other hand. <IMAGE>

Description

Rotationsschlauchpumpen zum Fördern pastöser Massen sind bekannt. Die Förderung erfolgt mit einem im wesentlichen zweiarmigen Rotor, an dessen Enden Rollen drehbar gelagert sind. Während des Drehens des Rotors laufen die Rollen über einen Schlauch, der sich an der den Rollen gegenüberliegenden Seite an der zylindrischen Innenseite des Pumpengehäuses abstützt. Die Schlauchenden sind mit dem Pumpeneinlaß und dem Pumpenauslaß verbunden. Der Schlauch ist mit der zu fördernden Masse gefüllt. Im Bereich der Rollen wird der Schlauch an das Gehäuse so angedrückt, daß die Schlauchabschnitte vor und hinter jeder Rolle während eines bestimmten Betriebsbereiches voneinander getrennt sind und die so entstandenen Schlauchabschnitte voneinander getrennte Teile der zu förderneden Masse enthalten. Die Masse im Schlauchbereich zwischen den beiden Rollen wird bei umlaufendem Rotor zwischen Ein- und Auslaß im Schlauch verschoben, die zwischen der in Umlaufrichtung ersten Rolle und dem Auslaß befindliche Masse wird aus dem Pumpenauslaß gefördert. In den Schlauchbereich zwischen Pumpeneinlaß und der anderen Rolle wird die zu fördernde Masse in den Schlauch aus einem Vorratsbehälter eingeführt.Rotary peristaltic pumps for conveying pasty masses are known. The promotion takes place with an essentially two-armed rotor, at the ends of which rollers are rotatably mounted. During the rotation of the rotor, the rollers run over a hose, which is supported on the opposite side of the rollers on the cylindrical inside of the pump housing. The hose ends are connected to the pump inlet and the pump outlet. The hose is filled with the mass to be conveyed. In the area of the rollers, the tube is pressed onto the housing in such a way that the tube sections in front of and behind each roller are separated from one another during a certain operating range and the tube sections thus created contain parts of the mass to be conveyed which are separate from one another. The mass in the hose area between the two rollers is shifted between the inlet and outlet in the hose with the rotor rotating, the mass located between the first roller in the direction of rotation and the outlet is conveyed out of the pump outlet. In the hose area between the pump inlet and the other roller, the mass to be conveyed is introduced into the hose from a storage container.

Bei diesen Pumpen wird der Schlauch bei umlaufendem Rotor von den auf ihn einwirkenden Rollen in Richtung auf den Pumpenauslaß verschoben und federt zurück, wenn eine der Rollen sich vom Schlauch im Bereich des Pumpenauslasses löst. Diese Axialverschiebungen sind zwar relativ gering, bei schnell laufenden Pumpen ihrer Häufigkeit wegen aber trotzdem Ursache für vorzeitigen Verschleiß bzw. eine begrenzte Lebensdauer des Schlauches gegenüber den anderen Teilen der Pumpe.In these pumps, the hose is displaced by the rollers acting on it in the direction of the pump outlet when the rotor rotates, and springs back when one of the rollers detaches from the hose in the region of the pump outlet. Although these axial displacements are relatively small, in the case of high-speed pumps their frequency is nevertheless the cause of premature wear or a limited service life of the hose compared to the other parts of the pump.

Aufgabe der Erfindung ist es, hier Abhilfe zu schaffen, insbesondere wenn der Antrieb der Rollen vom Antrieb des Rotors abgeleitet wird.The object of the invention is to remedy this, in particular if the drive of the rollers is derived from the drive of the rotor.

Zur Lösung der Aufgabe wird eine quer zur Bewegungsrichtung verlaufende Verzahnung zwischen den Rollen und dem Schlauch und/oder dem Schlauch und seiner Abstütztfläche vorgeschlagen.To achieve the object, a toothing extending transversely to the direction of movement is proposed between the rollers and the hose and / or the hose and its support surface.

Dadurch wird der Schlauch gleichsam geführt und an Längsverschiebungen weitgehend gehindert. Außerdem wird das Durchhängen des Schlauches nach der sich dem Pumpenauslaß nähernden Rolle gemildert, was bei den bekannten Lösungen ebenfalls eine unerwünschte Erscheinung ist.As a result, the hose is guided as it were and largely prevented from longitudinal displacements. In addition, the sagging of the hose after the roll approaching the pump outlet is alleviated, which is also an undesirable phenomenon in the known solutions.

Eine erfindungsgemäße Pumpe ist in der Zeichnung als Mittellängsschnitt dargestellt.A pump according to the invention is shown in the drawing as a central longitudinal section.

An der zylindrischen Innenwand des Pumpengehäuses 1 liegt ein Schlauch 2 an. Das Pumpengehäuse 1 ist evakuiert. Das Einlaßende 3 des Schlauches 2 Ist an einen Vorratsbehälter 4 für zu verarbeitenden Fertigbeton angeschlossen. Sein Auslaßende 5 ist an ein Verteilerrohrsystem 6 angeschlossen. In dem Gehäuse 1 läuft ein Rotor 7 um, dessen Förderrichtung durch den Pfeil 8 gekennzeichnet ist. 180° gegeneinander versetzt sind am Rotor 7 Rollen 9,10 drehbar gelagert. Läuft der Rotor 7 in Richtung des Pfeiles 8 um, so drehen sich die Rollen 9,10 in Richtung der Pfeile 11, weil sie bei umlaufendem Rotor 7 über den Schlauch 2 laufen. Der Abstand zwischen den Rollen 9,10 und der Innenwand des Gehäuses ist so bemessen, daß im Bereich der Rollen 9,10 der Schlauch 2 Wand auf Wand liegend an die Gehäusewand angelegt wird und so in der dargestellten Betriebsstellung drei voneinander getrennte Kammerabschnitte bestehen: der erste Abschnitt 12 zwischen der in Umlaufrichtung vor deren Rolle 9 und dem Pumpenauslaß 5, der zweite Abschnitt 13 zwischen den beiden Rollen 9,10 und der dritte Abschnitt 14 zwischen der in Umlaufrichtung hinteren Rolle 10 und dem Pumpeneinlaß 3. Der Beton im ersten Abschnitt 12 wird in Richtung des Pfeiles 15 in das Rohrsystem 6 und darin an die Verarbeitungsstelle gefördert, der Beton im zweiten Abschnitt 13 wird in Richtung des Pfeiles 16 zum Auslaß 5 geschoben und im dritten Abschnitt 14 wird Beton aus dem Vorratsbehälter 4 in den Schlauch 2 in Richtung des Pfeiles 17 eingesaugt bzw. mit einem Förderrad 4a eingeschoben.A hose 2 lies against the cylindrical inner wall of the pump housing 1. The pump housing 1 is evacuated. The inlet end 3 of the hose 2 is connected to a reservoir 4 for ready-mixed concrete to be processed. Its outlet end 5 is connected to a manifold system 6. A rotor 7 rotates in the housing 1, the conveying direction of which is indicated by the arrow 8. At 180 ° to each other, 7 rollers 9, 10 are rotatably mounted on the rotor. If the rotor 7 rotates in the direction of the arrow 8, the rollers 9, 10 rotate in the direction of the arrows 11 because they run over the hose 2 with the rotor 7 rotating. The distance between the rollers 9, 10 and the inner wall of the housing is dimensioned such that, in the region of the rollers 9, 10, the tube 2 is placed on the wall of the wall lying on the wall, and so in the operating position shown there are three separate chamber sections: the first section 12 between the circumferential direction in front of its roller 9 and the pump outlet 5, the second section 13 between the two rollers 9, 10 and the third section 14 between the circumferential rear roller 10 and the pump inlet 3. The concrete in the first section 12 is conveyed in the direction of arrow 15 in the pipe system 6 and therein to the processing point, the concrete in the second section 13 is pushed in the direction of arrow 16 to the outlet 5 and in the third section 14, concrete from the reservoir 4 in the hose 2 in the direction of the arrow 17 sucked in or inserted with a feed wheel 4a.

Das Anlegen des Schlauches 2 an die Gehäuseinnenwnad wird durch Rollen 18 des Rotors 7 unterstützt. Sie sind zwischen beiden Rollen in beiden Umfangsrichtungen angeordnet, obwohl nur die Hälfte von ihnen dargestellt ist, während von der anderen Hälfte der Rollen 18 nur die Lagerlöcher des Rotors 7 gezeichnet sind, die im vorderen des aus zwei Schilden bestehenden Rotors angeordnet sind, wobei der vordere Schild im linken Bereich der Zeichnung weggebrochen ist (Bruchkante 19). Es besteht die Möglichkeit, daß der Schlauch von der in Umlaufrichtung vorderen Rolle in Längsrichtung gegen den Auslaß 5 axial verschoben wird, dadurch zunächst durchhängt und zurückfedert, wenn die Rolle sich vom Schlauch gelöst hat. Dieser NachteIl Ist vermieden, wenn erfindungsgemäß eine Führung in Form einer querverlaufenden Verzahnung 20 insbesondere zwischen den Rollen 3,5 und dem Schlauch 2, gegebenenfalls auch alternativ oder additiv zwischen Schlauch und Gehäusewand vorgesehen ist. Diese Verzahnung erleichtert außerdem das Einführen des Schlauches in das Gehäuse, indem der Schlauch mit seiner Verzahnung zwischen Gehäusewand und der dem Einlaß näheren Rolle eingeschoben und dann bei umlaufendem Rotor sehr exakt eingezogen wird.The application of the hose 2 to the housing inner wall is supported by rollers 18 of the rotor 7. They are arranged between the two rollers in both circumferential directions, although only half of them are shown, while from the other half of the rollers 18 only the bearing holes of the rotor 7 are shown, which are arranged in the front of the rotor consisting of two shields, the the front plate in the left area of the drawing has broken away (breaking edge 19). There is the possibility that the hose is axially displaced in the longitudinal direction against the outlet 5 by the front roller in the circumferential direction, thereby initially sagging and springing back when the roller has detached itself from the hose. This disadvantage is avoided if, according to the invention, a guide in the form of a transverse toothing 20 is provided in particular between the rollers 3, 5 and the hose 2, optionally also alternatively or additively between the hose and the housing wall. This toothing also facilitates the insertion of the hose into the housing by inserting the hose with its toothing between the housing wall and the roller closer to the inlet and then being drawn in very precisely with the rotor rotating.

Claims (2)

1. Schlauchförderpumpe für pastöse Massen, insbesondere Frischbeton mit einem Pumpengehäuse, einem gegenüber dessen zylindrischer Innenseite umlaufendem Rotor, der mit Endrollen den Schlauch in Umfangsrichtung fortschreitend an die Gehäuseinnenseite so anlegt, daß während eines vorgegebenen Betriebsbereiches drei gegeneinander getrennte Bereiche entstehen, ein Bereich zwischen der in Umlaufrichtung ersten Rolle und dem Pumpenauslaß, ein Bereich zwischen beiden Rollen und ein Bereich zwischen der in Umlaufrichtung hinteren Rolle und dem Pumpeneinlaß, dadurch gekennzeichnet, daß der Schlauch (2) gegenüber den Rollen (9,10) des Rotors (7) und/oder gegenüber der ihn stützenden Gehäusewand durch eine quer zur Umlaufrichtung verlaufende Verzahnung (20) geführt ist.1. Hose feed pump for pasty masses, in particular fresh concrete with a pump housing, a rotor rotating around its cylindrical inside, which progressively places the hose with end rollers in the circumferential direction on the inside of the housing in such a way that three separate areas are created during a given operating range, an area between the in the circumferential direction of the first roller and the pump outlet, an area between the two rollers and an area between the rear roller in the circumferential direction and the pump inlet, characterized in that the hose (2) is opposite the rollers (9, 10) of the rotor (7) and / or is guided relative to the housing wall supporting it by a toothing (20) running transversely to the direction of rotation. 2. Schlauchförderpumpe nach Anspruch 1, dadurch gekennzeichnet, daß nur der Rotor (7) direkt angetrieben wird und die Drehung der Rollen (9,10) von der Drehung des Rotors abgeleitet wird, indem der Rotor die nicht selbst angetriebenen Rollen über den Schlauch führt.2. Hose feed pump according to claim 1, characterized in that only the rotor (7) is driven directly and the rotation of the rollers (9, 10) is derived from the rotation of the rotor by the rotor leading the non-self-propelled rollers over the hose .
EP85110579A 1984-08-24 1985-08-22 Rotating hose pump Withdrawn EP0174536A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843431189 DE3431189A1 (en) 1984-08-24 1984-08-24 ROTATIONAL HOSE PUMP
DE3431189 1984-08-24

Publications (1)

Publication Number Publication Date
EP0174536A1 true EP0174536A1 (en) 1986-03-19

Family

ID=6243815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110579A Withdrawn EP0174536A1 (en) 1984-08-24 1985-08-22 Rotating hose pump

Country Status (4)

Country Link
EP (1) EP0174536A1 (en)
DE (1) DE3431189A1 (en)
ES (1) ES8700730A1 (en)
YU (1) YU133885A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004083640A2 (en) * 2003-03-18 2004-09-30 Jms Co., Ltd Roller pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012108900A1 (en) 2011-09-21 2013-03-21 Gunter Krauss peristaltic pump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2130359A1 (en) * 1971-03-22 1972-11-03 Tukiem Trust
FR2257028A1 (en) * 1974-01-08 1975-08-01 Fauvel Georges Flexible hose type positive displacement pump - has serrated or indented surface to rollers pressing on hose

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2130359A1 (en) * 1971-03-22 1972-11-03 Tukiem Trust
FR2257028A1 (en) * 1974-01-08 1975-08-01 Fauvel Georges Flexible hose type positive displacement pump - has serrated or indented surface to rollers pressing on hose

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004083640A2 (en) * 2003-03-18 2004-09-30 Jms Co., Ltd Roller pump
WO2004083640A3 (en) * 2003-03-18 2005-01-06 Jms Co Ltd Roller pump

Also Published As

Publication number Publication date
ES546374A0 (en) 1986-11-16
ES8700730A1 (en) 1986-11-16
DE3431189A1 (en) 1986-03-06
YU133885A (en) 1987-12-31

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