EP0979945B1 - Magnetic coupling system and use of it for a gear pump - Google Patents
Magnetic coupling system and use of it for a gear pump Download PDFInfo
- Publication number
- EP0979945B1 EP0979945B1 EP99122988A EP99122988A EP0979945B1 EP 0979945 B1 EP0979945 B1 EP 0979945B1 EP 99122988 A EP99122988 A EP 99122988A EP 99122988 A EP99122988 A EP 99122988A EP 0979945 B1 EP0979945 B1 EP 0979945B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- rotor
- drive
- magnetic coupling
- drive side
- 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
- 230000008878 coupling Effects 0.000 title claims description 29
- 238000010168 coupling process Methods 0.000 title claims description 29
- 238000005859 coupling reaction Methods 0.000 title claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0069—Magnetic couplings
-
- 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
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
-
- 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
- F04C2240/60—Shafts
Definitions
- the present invention relates to a device according to the preamble of claim 1 and a use the device.
- Magnetic couplings are used for torque transmission between non-contacting waves, i. one to be sealed Rotary feedthrough, as for example from the Housing led out with a gear pump Drive shaft is necessary, is in a gear pump not needed with magnetic coupling.
- magnetic couplings driven pumps have only static acting Seals on, which is why they are hermetically sealed apply and therefore especially for extreme environmentally hazardous or toxic fluids are suitable.
- Known magnetic clutches consist of a bell-like Outer rotor, the single or double-walled containment shell and the Inner rotor.
- the outer rotor usually sits on one Motor shaft or a transmission output shaft and the Inner rotor is located on the out of the pump housing led out drive shaft of the gear pump.
- the Torque is transmitted by magnets, which are on the inner surface of the outer rotor as well as on the Outside surface of the inner rotor are located. magnetic couplings This known type are because of the mentioned Application benefits more often and preferably also used for ever larger services to be transmitted.
- a disadvantage of this known embodiment are the high demands on the position of each other connecting components: So are both the Drive unit and the gear pump extremely precise to position each other. Since gear pumps also with Connection lines for the pumped medium to be transported to connect, here are more Restrictions or specifications regarding the desired Position, often with the first not mentioned to match. Remedy here creates the possibility that the drive unit can be flexibly mounted, which however, only practicable in the low-power range is.
- the present invention is therefore the task based, a device with a magnetic coupling indicate which does not have the aforementioned disadvantages having.
- the invention has the following advantages: driven by the drive unit shaft with the drive-side rotor is hingedly connected and by the Bearing units radially with respect to the drive side Rotor are arranged, the axes must be driven Shaft and that of the drive-side rotor not coincide. These can be a missing one Align without the function of the Entire facility is impaired.
- the Invention has the advantage that in the assembly of the Magnetic coupling whose outer rotor, guided by the Fixing elements, can be pushed over the containment shell, without a tilting is possible.
- Fig. 1 is a gear pump 1, a Magentkupplung. 2 and a universal joint 14, wherein for driving the Gear pump 1, a drive unit (in Fig. 1 not shown) is connected to the universal joint 14.
- the gear pump 1 consists essentially of a Pump housing 21, of two intermeshing gears 3 and shaft bearings 6, in which the gears 3 bearing Shafts 4 are stored.
- One of the waves 4 is from the Pump housing 21 led out to drive the pump.
- On this extended shaft in the following drive shaft 7 called, sitting to the magnetic coupling 2 belonging inner Rotor 17, which has magnets 18 on its surface.
- An outer rotor 12, on its inner surface as well equipped with magnets 19 is radially to the inner rotor 17 arranged, being between the inner and the outer Rotor 17 and 12, a so-called split pot 16 is provided is that allows a complete seal.
- Drive side i.
- a shaft portion 11 follows via a connectable to the pump housing 21 Fixing element 8 is held in position, d. H. the Mobility of the shaft portion 11 - and thus also the outer rotor 12 - is in the radial direction on the Bearing clearance of a preferably as a rolling bearing 10th trained bearing limited according to the invention.
- the shaft portion 11 is further on a Universal joint 14 with a drive shaft 13, i. preferably initially with an inner part of a Drive shaft, which inner part over a second Universal joint (not shown in Fig. 1) with the Actual drive shaft of a drive unit (in FIG. 1 not shown).
- the magnetic coupling 2 forms with respect to the radial Mobility a unit with the gear pump 1 or with whose housing 21, which achieved in an advantageous manner is that the drive shaft 7 of the gear pump 1 with the Drive shaft 13 of the drive unit is not exact must coincide.
- At least one of the drive shaft sections i. of the Drive shaft portion in front of the first universal joint 14th and / or between the two universal joints and / or after the second universal joint, is telescopically constructed and thus can be extended or shortened as needed.
- These further embodiments still allow one more flexible handling of the positioning of the gear pump with respect to the drive unit.
- the fixing element 8 is by means of releasable Fasteners 15, preferably made of screws exist, attached to the pump housing 21.
- the fixing element. 8 tubular and closes the magnetic coupling 2 against the outside from, with ventilation holes 9 are provided.
- FIG. 2 shows a further embodiment of the invention, wherein in this the rolling bearing 10 radially to the split pot 16th are arranged. This is the storage of the outer rotor 12 closer to the split pot 16 and thus to the Place where precise positioning is critical to function is.
- Fig. 2 shows substantially the magnetic coupling 2. From the Gear pump 1 are only individual parts, namely the Pump housing 21 and sections of the shaft passage of the Drive shaft 7, shown.
- the further embodiment further has the advantage that the assembly can be made in a simple manner. So the outer rotor 12 becomes simple at the end of assemblage slid onto the containment shell 16 without touching it is because the bearings 10 ensure that the magnets 19 of the outer rotor 12 and the split pot 16 permanently are spaced.
- FIG. 3 in a schematic representation, three shaft sections 31, 32 and 33 of the drive shaft illustrated, wherein the first shaft portion 31 with the second shaft portion 32 via a first flexible Clutch 34 and the second shaft portion 32 with the third shaft portion 33 via a second flexible Coupling 35 are connected.
- the shaft section 33 corresponds to the rigid, out of a drive unit 30 out guided drive shaft.
- the outer rotor 12 FIGS. 1 and 2) of the magnetic coupling 2 (FIG. 1 and 2) connected to the first shaft portion 31.
- the flexible couplings 34 and 35 are in one of the explained Realized form.
- the second one Shaft portion 32 formed telescopically.
Description
Die vorliegende Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Patentanspruchs 1 sowie eine Verwendung der Vorrichtung.The present invention relates to a device according to the preamble of claim 1 and a use the device.
Magnetkupplungen dienen der Drehmomentübertragung zwischen sich nicht berührenden Wellen, d.h. eine abzudichtende Drehdurchführung, wie sie beispielsweise für die aus dem Gehäuse bei einer Zahnradpumpe herausgeführten Antriebswelle notwendig ist, wird bei einer Zahnradpumpe mit Magnetkupplung nicht benötigt. Mittels Magnetkupplungen angetriebene Pumpen weisen lediglich statisch wirkende Dichtungen auf, weshalb sie als hermetisch geschlossen gelten und demnach insbesondere für extrem umweltgefährdende bzw. toxische Fördermedien geeignet sind.Magnetic couplings are used for torque transmission between non-contacting waves, i. one to be sealed Rotary feedthrough, as for example from the Housing led out with a gear pump Drive shaft is necessary, is in a gear pump not needed with magnetic coupling. By magnetic couplings driven pumps have only static acting Seals on, which is why they are hermetically sealed apply and therefore especially for extreme environmentally hazardous or toxic fluids are suitable.
Bekannte Magnetkupplungen bestehen aus einem glockenartigen Aussenrotor, dem ein- oder doppelwandigen Spalttopf und dem Innenrotor. Der Aussenrotor sitzt gewöhnlich auf einer Motorwelle bzw. einer Getriebeausgangswelle und der Innenrotor befindet sich auf der aus dem Pumpengehäuse herausgeführten Antriebswelle der Zahnradpumpe. Die Drehmomentübertragung erfolgt durch Magnete, welche sich auf der Innenoberfläche des Aussenrotors sowie auf der Aussenoberfläche des Innenrotors befinden. Magnetkupplungen dieser bekannten Bauart werden wegen den erwähnten Anwendungsvorteilen immer häufiger und vorzugsweise auch für immer grössere zu übertragende Leistungen eingesetzt.Known magnetic clutches consist of a bell-like Outer rotor, the single or double-walled containment shell and the Inner rotor. The outer rotor usually sits on one Motor shaft or a transmission output shaft and the Inner rotor is located on the out of the pump housing led out drive shaft of the gear pump. The Torque is transmitted by magnets, which are on the inner surface of the outer rotor as well as on the Outside surface of the inner rotor are located. magnetic couplings This known type are because of the mentioned Application benefits more often and preferably also used for ever larger services to be transmitted.
Nachteilig bei dieser bekannten Ausführungsform sind die hohen Anforderungen an die Position der miteinander zu verbindenden Komponenten: So sind sowohl die Antriebseinheit als auch die Zahnradpumpe äusserst präzise zueinander zu positionieren. Da Zahnradpumpen ferner mit Anschlussleitungen für das zu transportierende Fördermedium zu verbinden sind, ergeben sich hier weitere Einschränkungen bzw. Vorgaben bezüglich der gewünschten Position, die oft mit den erst genannten nicht übereinstimmen. Abhilfe schafft hier die Möglichkeit, dass die Antriebseinheit flexibel montiert werden kann, was allerdings lediglich im Niederleistungsbereich praktikabel ist.A disadvantage of this known embodiment are the high demands on the position of each other connecting components: So are both the Drive unit and the gear pump extremely precise to position each other. Since gear pumps also with Connection lines for the pumped medium to be transported to connect, here are more Restrictions or specifications regarding the desired Position, often with the first not mentioned to match. Remedy here creates the possibility that the drive unit can be flexibly mounted, which however, only practicable in the low-power range is.
Bei grossen Übertragungsleistungen ist die Montage der Magnetkupplung schwierig, da die Magnete sehr stark - und damit schwer - ausgebildet sind. Das Zusammenführen der Komponenten gestaltet sich derart, dass der jeweils zuletzt montierte Rotor am Spalttopf entlang geschoben werden muss. Dabei splittern sehr leicht die Ecken der aus zumeist sprödem magnetischem Werkstoff gefertigten Mitnahmemagnete.For large transmission powers, the assembly of the Magnetic coupling difficult because the magnets are very strong - and that are difficult - trained. Merging the Components are designed so that each last mounted rotor must be pushed along the gap pot along. It splits very easily the corners of mostly brittle magnetic material manufactured driving magnets.
Aus der US-5 165 868 ist eine derartige Magnetkupplung für berührungsfreies Übertragen eines Drehmoments zwischen einer ersten auf einer zweiten Welle bekannt, wobei die erste Welle in einem Gehäuse gelagert ist, das mit einem die Magnetkupplung umgreifenden Fixierelement verbunden ist, welches über von der Magnetkupplung axial beabstandeten Lagereinheiten verfügt, die die zweite Welle in Position halten.From US-5,165,868 such a magnetic coupling for non-contact transmission of torque between a first known on a second wave, wherein the first shaft is mounted in a housing that with a the magnetic coupling encompassing fixing connected which is over from the magnetic coupling axially spaced bearing units features the second shaft hold in position.
Des Weiteren ist aus der US-1 913 633 eine gelenkige Verbindung von Wellen bekannt.Furthermore, from US-1 913 633 a hinged Connection of waves known.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung mit einer Magnetkupplung anzugeben, welche die vorstehend genannten Nachteile nicht aufweist.The present invention is therefore the task based, a device with a magnetic coupling indicate which does not have the aforementioned disadvantages having.
Diese Aufgabe wird durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Massnahmen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sowie eine Verwendung sind in weiteren Ansprüchen angegeben.This object is achieved by the in the characterizing part of Patent claim 1 specified measures solved. Advantageous embodiments of the invention and a Use are specified in further claims.
Die Erfindung weist die folgenden Vorteile auf: Indem die von der Antriebseinheit angetriebene Welle mit dem antriebsseitigen Rotor gelenkig verbunden ist und indem die Lagereinheiten radial in Bezug auf den antriebseitigen Rotor angeordnet sind, müssen die Achsen der angetriebene Welle und diejenige des antriebseitigen Rotors nicht zusammenfallen. Diese können vielmehr eine fehlende Fluchtung aufweisen, ohne dass die Funktion der Gesamtanlage beeinträchtigt ist. Darüber hinaus weist die Erfindung den Vorteil auf, dass bei der Montage der Magnetkupplung deren Aussenrotor, geführt durch die Fixierelemente, über den Spalttopf geschoben werden kann, ohne dass ein Verkannten möglich ist. Zudem ist die Aussenrotorlagerung näher am Spalttopf und liegt damit an dem Ort, wo eine präzise Positionierung, insbesondere in radialer Richtung, funktionsentscheidend ist.The invention has the following advantages: driven by the drive unit shaft with the drive-side rotor is hingedly connected and by the Bearing units radially with respect to the drive side Rotor are arranged, the axes must be driven Shaft and that of the drive-side rotor not coincide. These can be a missing one Align without the function of the Entire facility is impaired. In addition, the Invention has the advantage that in the assembly of the Magnetic coupling whose outer rotor, guided by the Fixing elements, can be pushed over the containment shell, without a tilting is possible. In addition, the Outer rotor bearing closer to the containment shell and is therefore on the place where precise positioning, especially in radial direction, is critical to function.
Die Erfindung wird nachfolgend anhand von Zeichnungen beispielsweise näher erläutert. Dabei zeigen
- Fig. 1
- eine erste Ausführungsform einer erfindungsgemässen Magnetkupplung,
- Fig. 2
- eine weitere Ausführungsform der erfindungsgemässen Magnetkupplung und
- Fig. 3
- Wellenabschnitte der Antriebswelle und eine Antriebseinheit zum Antreiben der Welle in schematischer Darstellung.
- Fig. 1
- A first embodiment of a magnetic coupling according to the invention,
- Fig. 2
- a further embodiment of the inventive magnetic coupling and
- Fig. 3
- Shaft sections of the drive shaft and a drive unit for driving the shaft in a schematic representation.
In Fig. 1 ist eine Zahnradpumpe 1, eine Magentkupplung 2
und ein Kreuzgelenk 14 dargestellt, wobei zum Antreiben der
Zahnradpumpe 1 eine Antriebseinheit (in Fig. 1 nicht
dargestellt) an das Kreuzgelenk 14 angeschlossen ist.In Fig. 1 is a gear pump 1, a Magentkupplung. 2
and a
Die Zahnradpumpe 1 besteht im wesentlichen aus einem
Pumpengehäuse 21, aus zwei ineinandergreifenden Zahnrädern
3 und Wellenlager 6, in denen die Zahnräder 3 tragenden
Wellen 4 gelagert sind. Eine der Wellen 4 ist aus dem
Pumpengehäuse 21 für den Antrieb der Pumpe herausgeführt.
Auf dieser verlängerten Welle, im folgenden Antriebswelle 7
genannt, sitzt ein zur Magnetkupplung 2 gehörender innerer
Rotor 17, der auf seiner Oberfläche Magnete 18 aufweist.
Ein äusserer Rotor 12, der auf seiner Innenfläche ebenfalls
mit Magneten 19 bestückt ist, ist radial zum inneren Rotor
17 angeordnet, wobei zwischen dem inneren und dem äusseren
Rotor 17 bzw. 12 ein sogenannter Spalttopf 16 vorgesehen
ist, der eine vollständige Abdichtung ermöglicht.
Antriebsseitig, d.h. an den äusseren Rotor 12 anschliessend
und mit diesem verbunden, folgt ein Wellenabschnitt 11, der
über ein mit dem Pumpengehäuse 21 verbindbares
Fixierelement 8 in Position gehalten wird, d. h. die
Beweglichkeit des Wellenabschnittes 11 - und damit auch des
äusseren Rotors 12 - ist in radialer Richtung auf das
Lagerspiel eines vorzugsweise als Wälzlager 10
ausgebildeten Lagers erfindungsgemäss eingeschränkt.The gear pump 1 consists essentially of a
Der Wellenabschnitt 11 ist des weiteren über ein
Kreuzgelenk 14 mit einer Antriebswelle 13, d.h.
vorzugsweise zunächst mit einem inneren Teil einer
Antriebswelle, welcher innere Teil über ein zweites
Kreuzgelenk (in Fig. 1 nicht dargestellt) mit der
eigentlichen Antriebswelle einer Antriebseinheit (in Fig. 1
nicht dargestellt) verbunden.The
Damit bildet die Magnetkupplung 2 in bezug auf die radiale
Beweglichkeit eine Einheit mit der Zahnradpumpe 1 bzw. mit
deren Gehäuse 21, womit in vorteilhafterweise erreicht
wird, dass die Antriebsachse 7 der Zahnradpumpe 1 mit der
Antriebsachse 13 der Antriebseinheit nicht exakt
zusammenfallen muss.Thus, the
Ein weiterer Vorteil wird dadurch erreicht, indem mindestens einer der Antriebswellenabschnitte, d.h. der Antriebswellenabschnitt vor dem ersten Kreuzgelenk 14 und/oder zwischen den beiden Kreuzgelenken und/oder nach dem zweiten Kreuzgelenk, teleskopartig aufgebaut ist und somit nach Bedarf verlängert bzw. verkürzt werden kann. Diese weiteren Ausführungsformen ermöglichen eine noch flexiblere Handhabung der Positionierung der Zahnradpumpe in bezug auf die Antriebseinheit.Another advantage is achieved by at least one of the drive shaft sections, i. of the Drive shaft portion in front of the first universal joint 14th and / or between the two universal joints and / or after the second universal joint, is telescopically constructed and thus can be extended or shortened as needed. These further embodiments still allow one more flexible handling of the positioning of the gear pump with respect to the drive unit.
Anstelle von Kreuzgelenken ist es auch denkbar, dass andere Gelenkarten verwendet werden. Es hat sich gezeigt, dass sich insbesondere Bogenzahnkupplungen, Gummikupplungen oder andere flexible Kupplungen hervorragend zur Realisierung der erfindungsgemässen Vorrichtung eignen.Instead of universal joints, it is also conceivable that others Joint types are used. It has been shown that in particular, gear couplings, rubber couplings or other flexible couplings excellent for realization the device according to the invention are suitable.
Das Fixierelement 8 wird mittels lösbaren
Befestigungsmitteln 15, die vorzugsweise aus Schrauben
bestehen, am Pumpengehäuse 21 befestigt. In einer
bevorzugten Ausführungsform ist das Fixierelement 8
rohrförmig und schliesst die Magnetkupplung 2 gegen aussen
ab, wobei Belüftungsbohrungen 9 vorgesehen sind.The
Fig. 2 zeigt eine weitere Ausführungsform der Erfindung,
wobei bei dieser die Wälzlager 10 radial zum Spalttopf 16
angeordnet sind. Damit befindet sich die Lagerung des
äusseren Rotors 12 näher am Spalttopf 16 und damit an dem
Ort, wo eine präzise Positionierung funktionsentscheidend
ist.2 shows a further embodiment of the invention,
wherein in this the rolling bearing 10 radially to the split pot 16th
are arranged. This is the storage of the
Fig. 2 zeigt im wesentlichen die Magnetkupplung 2. Von der
Zahnradpumpe 1 sind lediglich einzelne Teile, nämlich das
Pumpengehäuse 21 und Ausschnitte der Wellendurchführung der
Antriebswelle 7, dargestellt.Fig. 2 shows substantially the
Neben dem erwähnten Vorteil bezüglich einer idealen
Kraftaufnahme bei radial angeordneten Wälzlagern 10 weist
die weitere Ausführungsform ferner den Vorteil auf, dass
die Montage in einfacher Weise vorgenommen werden kann. So
wird der äussere Rotor 12 am Schluss der Montage einfach
auf den Spalttopf 16 aufgeschoben, ohne dass dieser berührt
wird, denn die Wälzlager 10 sorgen dafür, dass die Magnete
19 des äusseren Rotors 12 und der Spalttopf 16 dauernd
beabstandet sind.In addition to the mentioned advantage in terms of an ideal
Force absorption at radially arranged
Schliesslich sind in Fig. 3, in schematischer Darstellung,
drei Wellenabschnitte 31, 32 und 33 der Antriebswelle
dargestellt, wobei der erste Wellenabschnitt 31 mit dem
zweiten Wellenabschnitt 32 über eine erste flexible
Kupplung 34 und der zweite Wellenabschnitt 32 mit dem
dritten Wellenabschnitt 33 über eine zweite flexible
Kupplung 35 verbunden sind. Der Wellenabschnitt 33
entspricht der starren, aus einer Antriebseinheit 30 heraus
geführten Antriebswelle. Auf der anderen Seite ist der
äussere Rotor 12 (Fig. 1 und 2) der Magnetkupplung 2 (Fig.
1 und 2) mit dem ersten Wellenabschnitt 31 verbunden. Die
flexible Kupplungen 34 und 35 sind in einer der erläuterten
Form realisiert.Finally, in FIG. 3, in a schematic representation,
three
In einer bevorzugten Ausführungsform ist der zweite
Wellenabschnitt 32 teleskopartig ausgebildet.In a preferred embodiment, the second one
Claims (9)
- Device with a magnetic coupling (2) for the contactless transmission of a torque from a first shaft to a second shaft, with a first shaft (13) coupled to a drive unit and a second shaft (7) supported in a casing (21), one of the shafts (7) being provided with an inner rotor (17) having first magnets (18) and the other shaft (13) being provided with an outer rotor (12) having second magnets (19), the axis of the rotor (12) on the drive side being radially fixable via bearing units (10), via fixing elements (8), which are connectable to the casing (21), characterized in that the shaft (13) driven by the drive unit is jointedly connected to the rotor (12) on the drive side and that the bearing units (10) are arranged radially with respect to the rotor (12) on the drive side.
- Device according to claim 1, characterized in that the connection between the rotor (12) on the drive side and the shaft (13) driven by the drive unit consist of one, preferably of two flexible couplings (14).
- Device according to claim 2, characterized in that at least one of the flexible couplings (14) optionally is a rubber coupling, a curved teeth coupling or a cross joint or a combination of two or more of said kinds of couplings.
- Device according to one of the preceding claims, characterized in that roller bearings as bearing units (10) are provided between the fixing elements (8) and the rotor (12) on the drive side.
- Device according to one of the preceding claims, characterized in that the fixing element (8) is tubular.
- Device according to claim 5, characterized in that ventilation bores (9) are provided in the fixing element (8).
- Device according to one of the preceding claims, characterized in that a shaft portion (31,32,33) of the drive shaft (13) is designed telescope like.
- Device according to one of the preceding claims, characterized in that a spacer can (16) is provided between the inner and the outer rotor (17; 12), by means of the spacer can (16) a complete sealing being achievable.
- Usage of the device according to one of the claims 1 to 8 for driving a gear pump (1).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99122988A EP0979945B8 (en) | 1999-11-19 | 1999-11-19 | Magnetic coupling system and use of it for a gear pump |
| DE59912176T DE59912176D1 (en) | 1999-11-19 | 1999-11-19 | Device with a magnetic coupling and use of the same for a gear pump |
| US09/643,736 US6518684B1 (en) | 1999-11-19 | 2000-08-23 | Device having a magnetic clutch and use thereof for a gear pump |
| JP2000349653A JP2001187926A (en) | 1999-11-19 | 2000-11-16 | Device with magnetic coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99122988A EP0979945B8 (en) | 1999-11-19 | 1999-11-19 | Magnetic coupling system and use of it for a gear pump |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| EP0979945A2 EP0979945A2 (en) | 2000-02-16 |
| EP0979945A3 EP0979945A3 (en) | 2000-05-31 |
| EP0979945B1 true EP0979945B1 (en) | 2005-06-15 |
| EP0979945B8 EP0979945B8 (en) | 2005-08-10 |
Family
ID=8239424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99122988A Expired - Lifetime EP0979945B8 (en) | 1999-11-19 | 1999-11-19 | Magnetic coupling system and use of it for a gear pump |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6518684B1 (en) |
| EP (1) | EP0979945B8 (en) |
| JP (1) | JP2001187926A (en) |
| DE (1) | DE59912176D1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002031370A1 (en) * | 2000-10-11 | 2002-04-18 | Andrew Boyd French | Drive apparatus |
| US7421929B2 (en) | 2001-10-11 | 2008-09-09 | Andrew French | Drive apparatus |
| US7268454B2 (en) | 2003-01-17 | 2007-09-11 | Magnetic Torque International, Ltd. | Power generating systems |
| JP2006187257A (en) * | 2005-01-07 | 2006-07-20 | Daiyanitorikkusu Kk | Method for producing amide compound and acrylamide-based polymer |
| WO2007019390A2 (en) | 2005-08-03 | 2007-02-15 | Ccmi Corporation | Enhancement of surface-active solid-phase heterogeneous catalysts |
| NL2013596B1 (en) * | 2014-10-08 | 2016-10-04 | Walraven Holding Bv J Van | Vibration isolating insert for a pipe clip and method for manufacturing such an insert. |
| CN104329251A (en) * | 2014-10-30 | 2015-02-04 | 江苏海天泵阀制造有限公司 | Miniature ultralow-temperature magnetism-driven gear pump |
| BR112018067950A2 (en) * | 2016-02-25 | 2019-01-15 | Advancing Pump Tech Corp | pumping apparatus |
| EP3970786A1 (en) * | 2016-07-08 | 2022-03-23 | Fenwal, Inc. | Flexible impeller pumps and disposable fluid flow circuits incorporating such pumps |
| JP6458225B2 (en) * | 2017-03-24 | 2019-01-30 | 大東工業株式会社 | Magnet gear pump and manufacturing method thereof |
| CN114320890A (en) * | 2022-01-10 | 2022-04-12 | 淮安市虎力液压机械有限公司 | High-stability hydraulic gear pump |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1913633A (en) * | 1929-04-27 | 1933-06-13 | Heil Co | Pump construction |
| US4785213A (en) * | 1986-05-30 | 1988-11-15 | Satake Engineering Co., Ltd. | Variable speed controlled induction motor |
| JPH0625933B2 (en) * | 1986-10-02 | 1994-04-06 | 科学技術庁航空宇宙技術研究所長 | Electric direct drive positioning device with compound eccentric rotor |
| US5165868A (en) * | 1991-04-29 | 1992-11-24 | Tuthill Corporation | Magnetically driven pump |
| DE4401241C2 (en) * | 1994-01-18 | 1997-09-25 | Richter Chemie Technik Gmbh | Magnetic attachment in magnetic couplings |
-
1999
- 1999-11-19 DE DE59912176T patent/DE59912176D1/en not_active Expired - Fee Related
- 1999-11-19 EP EP99122988A patent/EP0979945B8/en not_active Expired - Lifetime
-
2000
- 2000-08-23 US US09/643,736 patent/US6518684B1/en not_active Expired - Fee Related
- 2000-11-16 JP JP2000349653A patent/JP2001187926A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0979945A2 (en) | 2000-02-16 |
| EP0979945A3 (en) | 2000-05-31 |
| DE59912176D1 (en) | 2005-07-21 |
| US6518684B1 (en) | 2003-02-11 |
| EP0979945B8 (en) | 2005-08-10 |
| JP2001187926A (en) | 2001-07-10 |
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