EP0852673B1 - Rotationsverdrängerpumpe - Google Patents
Rotationsverdrängerpumpe Download PDFInfo
- Publication number
- EP0852673B1 EP0852673B1 EP97925979A EP97925979A EP0852673B1 EP 0852673 B1 EP0852673 B1 EP 0852673B1 EP 97925979 A EP97925979 A EP 97925979A EP 97925979 A EP97925979 A EP 97925979A EP 0852673 B1 EP0852673 B1 EP 0852673B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping plate
- base plate
- membrane
- annular surface
- ring surface
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- F04C5/00—Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable
Definitions
- the invention relates to a rotary displacement pump according to the preamble of the claim 1.
- the rotor has a carrier which can be rotated about an axis and on which is free rotatable rollers are arranged, which run on the tappets and these during the circulation of the Rotor successively downwards and thus the membrane against the ring surface of the ring press and transport the pump medium forward.
- a nut is screwed onto the axle with the interposition of a compression spring.
- the spring presses the rollers in the direction of the axially movable carrier the pestle. The more the nut is tightened and the spring is biased, the higher is the delivery rate.
- the inner Clamping plate have a central opening so that the axis of the rotor is passed through can be. When opening the stator to change the membrane and the ring After wear, the unavoidable dirt can pass through the opening in the clamping plate penetrate and get into the rotor, which can lead to malfunctions. The This makes maintenance of the pump somewhat difficult.
- FR-A-1 119 960 also shows a rotary displacement pump with two part-circular ones Membrann. With the interposition of segment-shaped platelets running on the Membrane rolls off. The adjustable stroke limitation and thus the delivery rate takes place by means of an adjustable truncated cone.
- US-A-4 392 794 shows a peristaltic pump with a stator and a rotor.
- the Stator has an annular membrane, which is between itself and a semicircular Recess defines a pump channel.
- the rotor has a three-leg arm cross, Balls are freely rotatable at the front ends thereof. The rotor can be moved in the direction of the stator by means of a spindle, so that the rotatable balls open move the membrane in the recess.
- media which tend to clump such as mortar
- the roles cannot avoid such clumps, since the one set Position of the rotor with respect to the stator is invariable.
- the invention is based, to simplify the handling and in particular the maintenance of a rotary displacement pump of the type specified in the task .
- the basic idea of the rotary displacement pump according to the invention is a clean one Separation between the drive of the pump and its adjustment device for the delivery rate on one side and the pump channel with inlet and outlet on the other
- this separation by the inner (clamping) plate is realized.
- the pump can seal this inner (clamping) plate tightly because it does not axial passage needed more for the rotor axis, but it is according to the invention trained in the center. This puts the pump on the side that is contaminated is particularly at risk, hermetically sealed, and the ingress of dirt or aggressive pump fluid in the pump drive is no longer possible not even if the pump is for replacing the diaphragm and / or the base plate is opened.
- the pump has a stator 1 and a rotor 2.
- the stator 1 is part of the pump housing and has an outer clamping plate 24, one inner clamping plate 6, a base plate 3 and a membrane 11.
- the base plate 3 is ring-shaped and arranged coaxially to the axis 4 of the rotor 2.
- the base plate 3 has a flat ring surface 5, which by two conical clamping surfaces 9, 10 is limited, which are seen from the rotor 2 behind the ring surface 6. They are opposite two further clamping surfaces 7, 8, which are on the inner clamping plate 6 are formed and cooperate with the clamping surfaces 9, 10 to between the Pinch membrane 11.
- the membrane 11 is made of an elastomeric material and is not relaxed installed condition a ring-shaped, flat structure. By clamping between the conical clamping surfaces 7 to 10, the membrane 11 is bent so that it is level Ring surface 5 arches. Between the arched and thus elastically biased In this way, the membrane 11 and the annular surface 5 form a pump channel 12, in which an inlet 13 and an outlet 15 open.
- This sequence 15 is expedient close to the inlet 13. In order to be able to represent it in the drawing, it is in this Drawing a diagonal arrangement of inlet 13 and outlet 15 is provided.
- the pump channel 12 is on the short path from the inlet 13 to the outlet 15 by a not shown here Elevation on the annular base plate 3 blocked.
- the pressure transmission members 14 are T-shaped in longitudinal section formed, extend parallel to axis 4 and are along the entire Pump channel 12 is arranged, which connects the inlet 13 to the outlet 15, but not via that portion of the membrane 11, which in the direction of rotation of the rotor 2 from the outlet 15 to Inlet 13 leads because there the pump channel 12 through the on the annular base plate. 3 planned survey is interrupted.
- the pressure transmission members 14 are displaceable parallel to the axis 4 in the clamping plate 6 arranged and secured by an adjusting ring 17 which against the restoring force of the Membrane 11 is displaceable in the direction of the axis 4 by means of an eccentric 19, so that the Pressure transmission members 14 have a variable end stop, which allows to reduce the maximum cross section of the pump channel 12 and thus the delivery rate the pump.
- the rotor 2 rotates about a shaft 20 which is in a roller bearing 26 in the clamping plate 6 and is mounted in a further roller bearing 27 in the rear housing part.
- the rotor 2 has at least two free-running rollers 21, which roll over the pressure transmission members 14 and press them down, whereby the membrane 11 is pressed locally onto the annular surface 5 becomes. This local pressure point moves along the pump channel with the rotor movement 12, pushes the amount of liquid in front through the outlet 15 and simultaneously sucks in 13 more liquid through the inlet.
- the delivery pressure of the pump depends on the preload of the membrane 11. This bias depends on the material and the thickness of the membrane 11, but also on the extent the bend.
- the delivery pressure depends on the force with which the pressure transmission members 14 act on the membrane 11. It can be changed by means of a second eccentric 22 which, via the rear roller bearing 27, onto a collar 28 on the shaft 20 acts and thereby a spring 29 more or less tensions, which on an axially displaceable Carrier 30 of the rollers 21 bears.
- a second eccentric 22 which, via the rear roller bearing 27, onto a collar 28 on the shaft 20 acts and thereby a spring 29 more or less tensions, which on an axially displaceable Carrier 30 of the rollers 21 bears.
- the membrane 11 is preloaded by means of a screw device 31 in the form a threaded bolt, which is screwed into the clamping plate 6, through the outer Extends clamping plate 24 and carries a further screw device 32 in the form of a nut, which - when tightened - the outer clamping plate 24 against the base plate 3 and so that the base plate 3 presses against the edge of the membrane 11. So that the membrane 11 and the base plate 3 clamped and at the same time the pump channel 12 sealed.
- the membrane 11 and / or the base plate 3 are replaced when worn must only be loosened the nut of the screw device 32. After that the outer clamping plate 24 can be removed, and the base plate 3 and the membrane 11 are freely accessible.
- the wear occurs primarily on the hard base plate 3 on and expresses itself due to the abrasion from the base plate 3 in an enlargement of the Pump channel, which in turn leads to a reduction in the delivery pressure. Sinking of the delivery pressure can therefore be easily recognized when an exchange is necessary.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Display Devices Of Pinball Game Machines (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
- 1
- Stator
- 2
- Rotor
- 3
- Grundplatte
- 4
- Achse
- 5
- Ringfläche
- 6
- Spannplatte
- 7
- Klemmfläche
- 8
- Klemmfläche
- 9
- Klemmfläche
- 10
- Klemmfläche
- 11
- Membran
- 12
- Pumpkanal
- 13
- Zulauf
- 14
- Druckübertragungsglied
- 15
- Ablauf
- 17
- Stellring
- 19
- Exzenter
- 20
- Welle
- 21
- Rolle
- 22
- Exzenter
- 24
- Spannplatte
- 26
- Wälzlager
- 27
- Wälzlager
- 28
- Kragen
- 29
- Feder
- 30
- Träger
- 31
- Schraubeinrichtung
- 32
- Schraubeinrichtung
Claims (8)
- Rotationsverdrängerpumpemit einem Stator (1), ,
welcher eine äußere, eine Außenwand der Pumpe bildende Spannplatte (24) sowie eine innere Spannplatte (6) aufweist und
welcher eine von der einen, äußeren Seite der inneren Spannplatte (6) her lösbar befestigte sowie zwischen den beiden Spannplatten (6, 24) eingespannte Grundplatte (3) mit einer sich über einen Teilkreis oder Vollkreis erstreckenden Ringfläche (5) in der Oberfläche dieser Grundplatte (3) aufweist,
wobei in die Ringfläche (5) ein Zulauf (13) mündet und von der Ringfläche (5) ein Ablauf (15) ausgeht,
wobei weiterhin diese Ringfläche (5) von einer dicht an ihren Rändern durch die innere Spannplatte (6) mit des grundplatte (2) verspannten Membran (11) zur Schaffung eines Pumpkanals (12) überdeckt ist und
wobei schließlich der Membran (11) ein Kranz von einzeln beweglichen Druckübertragungsgliedern (14) zugeordnet ist,mit einem angetriebenen Rotor (2),
welcher dem Kranz der Druckübertragungsglieder (14) zugeordnet ist und
welcher einen um eine Achse (4) der Ringfläche (5) umlaufenden Träger (30) mit mehreren freilaufenden, in regelmäßigen Abständen längs der Ringfläche (5) über der Gundplatte (3) angeordneten Rollen (21) derart aufweist, daß
die Rollen (21) im Betrich über die Druckübertragungsglieder (14) hinwegrollen und die Membran (11) fortlaufend lokal gegen die Ringfläche (5) drücken, wodurch die Membran (11) den Weg vom Zulauf (13) zum Ablauf (15) unterbricht,sowie mit einer Einrichtung zum Einstellen der Förderleistung der Pumpe,
wobei weiterhin auf den Träger für die Rollen (21) eine Feder (29) wirkt, welche die Rollen (21) gegen die Druckübertragungsglieder (14) drückt, und
wobei schließlich die Vorspannung der Feder (29) durch einen Exzenter (22) einstellbar ist,
dadurch gekennzeichnet, daß die innere Spannplatte (6) des Stators (1) im Zentrum geschlossen ist,
daß der Rotor (2) in der bezüglich der äußeren Spannplatte (24) anderen Seite der inneren Spannplatte (6) des Stators (1) gelagert ist und
daß die Feder (29) sowie die Einrichtung zur Einstellung der Vorspannung dieser Feder (29) auf der bezüglich der äußeren Spannplatte (24) anderen Seite der inneren Spannplatte (6) angeordnet sind. - Rotationsverdrängerpumpe nach dem vorhergehenden Anspruch,
dadurch gekennzeichnet, daß der Exzenter (22) über einen auf einer Welle (20) des Rotors (2) angeordneten Kragen (28) auf die Feder (29) wirkt. - Rotationsverdrängerpumpe nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß zur Begrenzung des Rückhubs der Druckübertragungsglieder (14) ein axial verstellbarer Stellring (17) vorgesehen ist, an welchem die Druckübertragungsglieder (14) beim Rückhub anschlagen. - Rotationsverdrängerpumpe nach Anspruch 3,
dadurch gekennzeichnet, daß die Lage des Stellrings (17) durch einen Exzenter (19) verstellbar ist. - Rotationsverdrängerpumpe nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die äußere Spannplatte (24) durch eine zentrale Schraubeinrichtung (31,32) mit der inneren Spannplatte (6) verschraubt ist. - Rotationsverdrängerpumpe nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Grundplatte (3) ein Ring ist. - Rotationsverdrängerpumpe nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Grundplatte (3) aus einem formstabilen Kunststoff besteht. - Rotationsverdrängerpumpe nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Membran (11) im entspannten Zustand ein im wesentlichen ebenes Gebilde ist,
daß die Ringfläche (5) eine im wesentlichen ebene Fläche ist, die zu beiden Seiten durch je eine Klemmfläche (9,10) begrenzt ist, die gegen die Ebene der Ringfläche (5) geneigt und vom Rotor (2) aus gesehen hinter der Ebene der Ringfläche (5) verläuft und
daß diesen beiden Klemmflächen (9,10) je eine weitere zu ihr parallele Klemmfläche (7,8) gegenüberliegt, welche Bestandteil der Spannplatte (6) ist, so daß die Membran (11) durch das Einspannen zwischen den Klemmflächen (9,10) elastisch vorgespannt ist und die Ringfläche (5) überwölbt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29609865U DE29609865U1 (de) | 1996-06-04 | 1996-06-04 | Rotationsverdrängerpumpe |
DE29609865U | 1996-06-04 | ||
PCT/EP1997/002871 WO1997046808A1 (de) | 1996-06-04 | 1997-06-04 | Rotationsverdrängerpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0852673A1 EP0852673A1 (de) | 1998-07-15 |
EP0852673B1 true EP0852673B1 (de) | 2004-04-07 |
Family
ID=8024765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97925979A Expired - Lifetime EP0852673B1 (de) | 1996-06-04 | 1997-06-04 | Rotationsverdrängerpumpe |
Country Status (9)
Country | Link |
---|---|
US (1) | US6030190A (de) |
EP (1) | EP0852673B1 (de) |
AT (1) | ATE263924T1 (de) |
CZ (1) | CZ288831B6 (de) |
DE (3) | DE29609865U1 (de) |
DK (1) | DK0852673T3 (de) |
HU (1) | HUP9901585A3 (de) |
PL (1) | PL183138B1 (de) |
WO (1) | WO1997046808A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29705877U1 (de) * | 1997-04-03 | 1998-02-19 | INOTEC GmbH Transport- und Fördersysteme, 79761 Waldshut-Tiengen | Rotationsverdrängerpumpe |
DE19713689C2 (de) * | 1997-04-03 | 1999-09-09 | Inotec Gmbh | Rotationsverdrängerpumpe |
DE29706606U1 (de) | 1997-04-12 | 1997-08-21 | Kammerer, Rolf, 75196 Remchingen | Rotationsverdrängerpumpe |
DE19717452A1 (de) * | 1997-04-25 | 1998-10-29 | Inotec Gmbh | Rotationsverdrängerpumpe |
DE29707480U1 (de) | 1997-04-25 | 1997-07-17 | Kammerer, Rolf, 75196 Remchingen | Rotationsverdrängerpumpe |
US6736617B2 (en) * | 2002-02-20 | 2004-05-18 | Terumo Cardiovascular Systems Corporation | Peristaltic pump having automatically adjusting bushing |
GB2412698A (en) * | 2004-04-01 | 2005-10-05 | Boc Group Plc | Peristaltic pump |
JP3750689B1 (ja) * | 2005-02-04 | 2006-03-01 | セイコーエプソン株式会社 | 流体輸送装置及び流体輸送器 |
US8303275B2 (en) * | 2006-12-07 | 2012-11-06 | Seiko Epson Corporation | Micropump, tube unit, and control unit |
JP5298699B2 (ja) * | 2008-08-20 | 2013-09-25 | セイコーエプソン株式会社 | 制御ユニット、チューブユニット、マイクロポンプ |
JP5282508B2 (ja) * | 2008-09-29 | 2013-09-04 | セイコーエプソン株式会社 | 制御ユニット、チューブユニット、マイクロポンプ |
JP5195368B2 (ja) | 2008-12-05 | 2013-05-08 | セイコーエプソン株式会社 | チューブユニット、制御ユニット、マイクロポンプ |
JP5982855B2 (ja) * | 2012-02-17 | 2016-08-31 | セイコーエプソン株式会社 | 流体輸送装置、交換ユニット、及び交換ユニットの製造方法 |
DE102017116398A1 (de) * | 2017-07-20 | 2019-01-24 | B. Braun Melsungen Ag | Volumetrische Pumpe |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE110412C (de) * | ||||
FR1119960A (fr) * | 1955-03-02 | 1956-06-27 | Le Controle Des Fluides | Pompe spéciale pour l'obtention de hautes pressions |
US3058428A (en) * | 1960-07-20 | 1962-10-16 | Gemeinhardt William | Pump |
DE1528971A1 (de) * | 1966-05-05 | 1969-07-17 | Beck Kg Walter | Ventillose Verdraengungspumpe |
DE3071630D1 (en) * | 1979-09-27 | 1986-07-10 | Hemocare | Peristaltic pump |
US4392794A (en) * | 1980-12-29 | 1983-07-12 | Arthur Foxcroft | Peristaltic pump |
SE8100044L (sv) * | 1981-01-07 | 1982-07-08 | Vitrum Ab | Pump |
US4522571A (en) * | 1984-03-05 | 1985-06-11 | Little Robert K | Peristaltic pump |
US4586882A (en) * | 1984-12-06 | 1986-05-06 | Baxter Travenol Laboratories, Inc. | Tubing occluder pump |
DD272036A1 (de) * | 1988-05-09 | 1989-09-27 | Karl Marx Stadt Tech Hochschul | Radialperistaltikschlauchpumpe |
DE29511966U1 (de) * | 1994-09-17 | 1995-09-28 | Kammerer, Rolf, 75196 Remchingen | Rotationsverdrängerpumpe |
-
1996
- 1996-06-04 DE DE29609865U patent/DE29609865U1/de not_active Expired - Lifetime
-
1997
- 1997-06-04 PL PL97324694A patent/PL183138B1/pl not_active IP Right Cessation
- 1997-06-04 US US09/011,499 patent/US6030190A/en not_active Expired - Fee Related
- 1997-06-04 WO PCT/EP1997/002871 patent/WO1997046808A1/de active IP Right Grant
- 1997-06-04 HU HU9901585A patent/HUP9901585A3/hu unknown
- 1997-06-04 AT AT97925979T patent/ATE263924T1/de active
- 1997-06-04 DE DE59711494T patent/DE59711494D1/de not_active Expired - Lifetime
- 1997-06-04 DK DK97925979T patent/DK0852673T3/da active
- 1997-06-04 DE DE19723303A patent/DE19723303A1/de not_active Withdrawn
- 1997-06-04 EP EP97925979A patent/EP0852673B1/de not_active Expired - Lifetime
- 1997-06-04 CZ CZ1998189A patent/CZ288831B6/cs not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CZ18998A3 (cs) | 2000-09-13 |
PL183138B1 (pl) | 2002-05-31 |
HUP9901585A3 (en) | 2000-02-28 |
DK0852673T3 (da) | 2004-08-09 |
CZ288831B6 (cs) | 2001-09-12 |
HUP9901585A2 (hu) | 1999-08-30 |
EP0852673A1 (de) | 1998-07-15 |
DE59711494D1 (de) | 2004-05-13 |
US6030190A (en) | 2000-02-29 |
ATE263924T1 (de) | 2004-04-15 |
DE19723303A1 (de) | 1998-02-12 |
DE29609865U1 (de) | 1996-10-24 |
WO1997046808A1 (de) | 1997-12-11 |
PL324694A1 (en) | 1998-06-08 |
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