EP3552712B1 - Centrifuge - Google Patents

Centrifuge Download PDF

Info

Publication number
EP3552712B1
EP3552712B1 EP19160802.5A EP19160802A EP3552712B1 EP 3552712 B1 EP3552712 B1 EP 3552712B1 EP 19160802 A EP19160802 A EP 19160802A EP 3552712 B1 EP3552712 B1 EP 3552712B1
Authority
EP
European Patent Office
Prior art keywords
motor
rotor
centrifuge
bearing
mounting device
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.)
Active
Application number
EP19160802.5A
Other languages
German (de)
French (fr)
Other versions
EP3552712A1 (en
Inventor
Christian Haas
Daniel Schrameyer
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.)
Gebr Steimel & Co Maschinenfabrik GmbH
Original Assignee
Gebr Steimel & Co Maschinenfabrik 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 Gebr Steimel & Co Maschinenfabrik GmbH filed Critical Gebr Steimel & Co Maschinenfabrik GmbH
Priority to PL19160802T priority Critical patent/PL3552712T3/en
Publication of EP3552712A1 publication Critical patent/EP3552712A1/en
Application granted granted Critical
Publication of EP3552712B1 publication Critical patent/EP3552712B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/02—Electric motor drives
    • B04B9/04—Direct drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/12—Suspending rotary bowls ; Bearings; Packings for bearings

Definitions

  • the invention relates to a centrifuge. It relates in particular to an industrial centrifuge such as is used, for example, for de-oiling, drying, rinsing, coating and rust protection of workpieces or metal chips
  • Such a centrifuge according to the preamble of claim 1 is of DE102013105006 known.
  • the rotor can either be formed directly by the centrifuge drum or by a drum holder on which the centrifuge drum is detachably attached.
  • centrifuges are known in which the rotor is attached directly to the shaft of a motor, usually an electric motor.
  • the shaft of the motor - and thus the axis of rotation of the rotor - is, at least essentially, oriented vertically.
  • the motor is fastened on its side facing away from the rotor in the housing of the centrifuge. In practice, it is fastened using a so-called foot bearing.
  • Such centrifuges are particularly distinguished by their simple structure. Examples of such centrifuges are, for example, the applicant's “Polar C” centrifuges.
  • a bearing arrangement for a centrifuge which comprises a centrifuge drum which is arranged rotatably about an axis of rotation, here referred to as a basket.
  • the basket is connected to a drive shaft via a suspension of the basket via a cylindrical basket hub closed at the top.
  • the drive shaft extends along the axis of rotation in a bearing block and is coupled to a drive unit.
  • a shaft tube is arranged around the drive shaft and within the cage hub and the bearings for the cage are arranged between the cage hub and the shaft tube.
  • the pamphlet DE 43 14 440 C1 describes a corresponding bearing arrangement for a centrifuge.
  • the centrifuge drum is attached to the motor shaft and the end of the stator of the motor (motor housing) facing away from the centrifuge drum is held in the foot bearing so that the stator of the motor (motor housing) is used as an extended bearing bridge and absorbs forces from the centrifuge drum.
  • the invention is therefore based on the object of providing a centrifuge of the type described above which allows the use of more cost-effective and / or better available standard motors without complex structural changes.
  • a centrifuge with a vertical axis of rotation is described, with a rotor, a motor arranged below the rotor for rotating the rotor and a foot bearing which supports the motor and the rotor.
  • the centrifuge further comprises a motor receiving device for receiving a motor, the rotor being rotatably fastened to the motor receiving device via a rotor bearing and wherein the foot bearing is arranged on the side of the motor receiving device facing away from the rotor.
  • the centrifuge according to the invention has a motor receiving device for receiving the motor to which the motor is attached.
  • the motor housing is screwed tightly to the motor mounting device at the upper end near the rotor.
  • the rotor is rotatably attached to the motor mounting device via a rotor bearing.
  • the dynamic forces of the rotor are at least partially absorbed by the motor receiving device via this fastening and do not act on the motor or its shaft.
  • the foot bearing is arranged on the side of the motor receiving device facing away from the rotor, the end of the motor facing away from the rotor not being attached to the motor receiving device and thus not being attached to the foot bearing.
  • the forces involved in the in Fig. 1 The centrifuge shown according to the prior art act on the bearing of the motor shaft, can thus be received by the rotor bearing on the motor receiving device and introduced into the motor receiving device. These forces are transmitted via the motor mounting device to the foot bearing at the lower end of the motor mounting device. The lower end of the motor is freely received in the motor receiving device, so that it can move freely when the rotor moves. In this way, the motor shaft and the bearing of the motor shaft in the motor are considerably relieved. It is therefore possible to use expensive special motors that can only be ordered with long delivery times and whose motor shaft and bearings are suitable for absorbing large forces dispense with installing common standardized electric motors in the centrifuge.
  • the motor mounting device can surround the motor with little installation space because the motor is only displaced by a small amount (a few millimeters) during operation.
  • the installation space of the motor with motor mounting device is therefore insignificantly larger than the installation space of the motor of the prior art so that the new motor with motor mounting device can replace the motors previously used in centrifuges according to the prior art without any further structural changes.
  • the motor shaft of the motor can be coupled non-rotatably to the rotor.
  • This coupling for example a tongue and groove connection, only transmits the torques between the motor shaft and rotor, but not transverse forces or bending forces.
  • the motor receiving device can accommodate a motor together with its housing and its motor shaft bearing with which the motor shaft is supported in the housing of the motor.
  • the motor mounting device can closely surround the housing of the motor so that it only insignificantly increases the installation space of the motor.
  • the motor can, for example, be a commercially available asynchronous motor.
  • the motor can be fastened to the motor receiving device with its end pointing towards the rotor.
  • a housing area pointing towards the rotor for example a bearing plate, is attached to the motor receiving device.
  • the opposite end of the motor is not attached to the motor mount. Deformations due to transverse forces or bending moments are thus absorbed solely by the motor receiving device and not by the motor housing.
  • the foot bearing accommodates the motor mounting device and not the motor.
  • a foot bearing is preferably located in the extension of the axis of rotation of the rotor.
  • the foot bearing can be designed to be elastic, as in the prior art.
  • An elastic foot bearing has the advantage that it gives the arrangement of the motor mounting device, motor and rotor of the centrifuge adequate support when the centrifuge is at a standstill or at low speeds, but allows small deflections during operation of the centrifuge due to the resulting dynamic forces.
  • the centrifuge can in the area of the foot bearing as in the prior art Fig. 1 Have means for detecting imbalances. This can result, for example, from irregular filling of the rotor. If the imbalances exceed a certain level, this can lead to problems.
  • the means for detecting imbalances can therefore be set up in such a way that when a certain imbalance is exceeded, they emit a warning signal and / or switch off and / or stop the centrifuge. The filling of the centrifuge drum must then be changed in such a way that the imbalances are avoided.
  • the rotor bearing can be a support bearing.
  • the support bearing can be employed.
  • An employed support bearing has the advantage that the bracing of the bearings against each other does not result in bearing play. This is particularly advantageous against the background that forces acting on the rotor bearing should be absorbed by the latter before they can be passed on to the motor shaft.
  • the rotor bearing can be implemented using roller bearings.
  • Tapered roller bearings for example, can be used as roller bearings. Due to the line contact between the rolling elements and the bearing rings, tapered roller bearings are particularly suitable for absorbing the forces acting on the rotor bearing.
  • the rotor bearing can be arranged in an O arrangement. Bearings in an O-arrangement are particularly suitable for absorbing a force that occurs outside the bearing points. In the case of a centrifuge of the type in question, this is the case, for example, when the rotor is located above the rotor bearing. The imbalances that too the forces to be absorbed by the rotor bearing usually arise in the area of the rotor.
  • the rotor can have a rotor shaft.
  • the rotor shaft can be mounted within the rotor bearing.
  • the rotor shaft can be arranged coaxially to the motor shaft. The coaxial arrangement of the two shafts is particularly advantageous with regard to the stabilization of the centrifuge via the gyroscopic forces of the free vertical axis of rotation.
  • the rotor has a rotor shaft, for example a torsionally rigid connection between the motor shaft and rotor can be implemented in a structurally simple manner.
  • the motor shaft and rotor shaft can be pushed into one another and secured against rotation by a driver element, for example a feather key.
  • the motor shaft is preferably pushed into the rotor shaft.
  • Motor shafts suitable for this are often provided in standard motors that can be obtained easily and inexpensively.
  • the motor receiving device advantageously surrounds the motor. In this way it can be achieved that the forces which can be introduced into the rotor bearing and thus into the motor receiving devices during operation from all directions can also be absorbed in all directions by the motor receiving device.
  • a largely symmetrical structure of the motor receiving device around the axis of rotation of the motor or the axis of rotation of the centrifuge is made possible.
  • the symmetrical structure also results in a correspondingly uniform mass distribution of the motor mounting device.
  • the motor receiving device can be designed in the manner of a cage and have an installation space that is only slightly larger than the installation space of the motor.
  • the installation space of the motor mounting device for a standard motor essentially corresponds to the installation space of the previously used special motor.
  • the connections, especially the connection with the Foot bearings, the connections to the special motor of the previous embodiment can according to Fig. 1 correspond.
  • the cage-like motor mounting device with the standard motor can easily be adapted to the previous special motor of the centrifuge mentioned above Fig. 1 without requiring any further structural changes to the centrifuge. While maintaining the overall construction, a reliable and resilient centrifuge is created that does not require a special motor with a conventional standard motor because the considerable dynamic forces are absorbed by the motor mounting device.
  • the motor receiving device can have a base plate.
  • the base plate can be connected to the footrest, for example by a support pin.
  • the motor receiving device can also have a head plate.
  • the head plate is arranged on the end of the motor receiving device facing the rotor.
  • the motor can be attached to the head plate. It is preferably attached exclusively to the top plate, so that the motor housing can move freely relative to other areas of the motor receiving device. As a result, the motor receiving device can easily deform due to the dynamic forces without the motor housing being stressed.
  • the upper head plate can in practice be designed in a ring shape. The ring-shaped design of the head plate allows the motor shaft to be guided through the head plate in order to connect it to the rotor.
  • the base plate can be connected to the top plate by connecting struts. These can extend rod-shaped and / or rod-shaped with a small distance parallel to the housing of the motor. With a construction of this type made up of a base plate, head plate and connecting struts, a motor mounting device can be implemented in a simple manner, which surrounds the motor in a cage-like manner and does not take up any significantly larger installation space than the motor itself.
  • the centrifuge can also have a brake.
  • the brake can be arranged between the top plate of the motor mounting device and the rotor (centrifuge drum or drum mounting). It can be a hysteresis brake.
  • a hysteresis brake is a brake that is based on the action of a magnet or electromagnet on a ferromagnetic material moving relative to the magnet or electromagnet. The repeated magnetization of the ferromagnetic material results in a loss of energy.
  • the brake can be designed in the manner of a drum brake.
  • the brake drum can be attached to the rotor and the magnets to the head plate. In this way, the braking forces when braking the rotor are also introduced into the motor receiving device and not via the motor itself.
  • a centrifuge 10 consists of a motor 16 which is held in a foot bearing 18 and a Rotor 12 carries.
  • the rotor 12 is not the centrifuge drum itself, but rather a drum holder with a holding frame 11 and a mounting plate 13 on which a centrifuge drum (not shown) can be set up.
  • the rotor 12 of the centrifuge 10 is attached directly to the motor shaft 14 of the motor 16.
  • the mounting of the motor 16 has to absorb both the weight forces of the centrifuge drum with its filling and the dynamic forces that result from imbalances in the rotor and its filling. These forces are introduced into the motor 16 via the motor shaft 14 and diverted via the housing of the motor 16.
  • the housing of the motor 16 is fastened to a foot bearing 18 which carries the motor 16 with the rotor 12 fastened to it.
  • the motor 16 is accommodated in a motor receiving device 20.
  • the rotor 12 is rotatably connected to the motor receiving device 20 at its upper end via a rotor bearing 22.
  • a corresponding exemplary arrangement of motor receiving device 20, motor 16 and rotor 12 is shown in FIG Figures 2-4 shown.
  • the upper end of the motor 16 is secured by fastening screws 48 (see Fig. Fig. 4 ) firmly screwed to a head plate 40 of the motor mounting device 20.
  • the opposite lower end of the motor 16 is not connected to the motor mounting device 20 and can move freely.
  • the foot bearing 18 fastened to the motor mounting device 20 can be used in the case of the Figures 2-4 arrangement shown in accordance with the in Fig. 1 be formed prior art shown. The same applies to the outer housing 24 of the centrifuge 10 and the others in the Figures 2 to 4 components not shown. As a result, the new motor mounting device 20 with a standard motor can be installed in an existing centrifuge without any problems.
  • the foot bearing 18 can, as in Fig. 1 shown, hold a support pin 26 which is formed on the base plate 36 of the motor receiving device 20.
  • a disk-shaped element 28 is formed on the support pin 26, which is sandwiched between elastic elements 30 (see FIG. Fig. 1 ) is fixed.
  • the elastic elements 30 are subjected to a prestressing force along the construction axis X and thus along the axis of the support pin 26.
  • the rotor bearing 22 can as in the in Fig. 4 shown example be designed as an employed support bearing. Tapered roller bearings in an O arrangement are used as bearings. The tapered roller bearings of the rotor bearing 22 are in the Figures 3 and 4th shown only schematically.
  • the rotor 12 can have a rotor shaft 32 which is arranged on the underside of the rotor 12 and is mounted within the rotor bearing 22.
  • the rotor shaft 32 transmits all of the weight forces and dynamic forces acting on the rotor 12 when the rotor 12 rotates via the rotor bearing 22 to the motor mounting device 20.
  • the rotor shaft 32 is rotatably coupled to the motor shaft 14 via a feather key connection 34.
  • motor shaft 32 and motor shaft 14 are arranged coaxially to one another and to the construction axis X.
  • the motor mounting device 20 has a plate-shaped or plate-shaped base plate 36.
  • the support pin 26 of the foot bearing 18 is attached to the base plate 36.
  • the base plate 36 is connected to a head plate 40 of the motor mounting device 20 via rod-shaped connecting struts 38.
  • the head plate 40 can — as shown — be of annular design. Head plate 40, base plate 36 and connecting struts 38 thus form the motor receiving device 20, which surrounds the motor 16 like a cage.
  • the entire installation space of the motor mounting device 20 essentially corresponds to the installation space of the motor, so that the motor receiving device 20 with the motor 16 can easily connect the motor 16 in a special design in the embodiment of FIG Fig 1 can replace.
  • the motor 16 is fastened with its housing to the head plate 40 with fastening screws 48 as described above, its lower end not being connected to the motor receiving device 20 and being able to move freely.
  • a brake 42 is arranged between the rotor 12 and the motor receiving device 20.
  • the brake 42 is designed as a hysteresis brake.
  • the brake 42 is shown only schematically in the example shown. As a first part it has an annular electromagnet 44 for generating a magnetic field, which is fastened to the head plate 40 of the motor mounting device 20.
  • a ferromagnetic drum 46 is attached to the mounting plate 13 of the rotor 12 as the second part of the brake. The drum 46 surrounds the electromagnet 44.
  • the braking forces generated by the braking of the rotor 12 are absorbed in this way via the head plate 40 of the motor mounting device 20 and do not load the motor 16 or its motor shaft 14.
  • a brake can also be used can be used, which enables electrical energy to be fed back into a power storage unit during the braking process.

Description

Die Erfindung betrifft eine Zentrifuge. Sie betrifft insbesondere eine Industriezentrifuge wie sie beispielsweise zum Entölen, Trocknen, Spülen, Beschichten und Rostschützen von Werkstücken oder Metallspänen verwendet wirdThe invention relates to a centrifuge. It relates in particular to an industrial centrifuge such as is used, for example, for de-oiling, drying, rinsing, coating and rust protection of workpieces or metal chips

Eine derartige Zentrifuge gemäß dem Oberbegriff des Anspruchs 1 ist von DE102013105006 bekannt.Such a centrifuge according to the preamble of claim 1 is of DE102013105006 known.

Bei einer derartigen Zentrifuge kann der Rotor entweder unmittelbar von der Zentrifugentrommel gebildet werden oder von einer Trommelaufnahme, auf der die Zentrifugentrommel lösbar befestigt ist. Nach dem Stand der Technik sind Zentrifugen bekannt, bei denen der Rotor direkt auf der Welle eines Motors, üblicherweise eines Elektromotors, befestigt ist. Die Welle des Motors - und damit die Drehachse des Rotors - ist, zumindest im Wesentlichen, vertikal orientiert. Der Motor ist auf seiner von dem Rotor abgewandten Seite in dem Gehäuse der Zentrifuge befestigt. Die Befestigung erfolgt in der Praxis durch ein sogenanntes Fußlager. Derartige Zentrifugen zeichnen sich insbesondere durch ihren einfachen Aufbau aus. Beispiele für derartige Zentrifugen sind beispielsweise die Zentrifugen des Typs "Polar C" der Anmelderin.In such a centrifuge, the rotor can either be formed directly by the centrifuge drum or by a drum holder on which the centrifuge drum is detachably attached. According to the prior art, centrifuges are known in which the rotor is attached directly to the shaft of a motor, usually an electric motor. The shaft of the motor - and thus the axis of rotation of the rotor - is, at least essentially, oriented vertically. The motor is fastened on its side facing away from the rotor in the housing of the centrifuge. In practice, it is fastened using a so-called foot bearing. Such centrifuges are particularly distinguished by their simple structure. Examples of such centrifuges are, for example, the applicant's “Polar C” centrifuges.

Diese Bauweise bringt es jedoch mit sich, dass Kräfte, die beim Betrieb der Zentrifuge vom Rotor in die Motorwelle eingeleitet werden, über die Lagerung des Motors aufgenommen werden müssen. Diese Kräfte resultieren insbesondere aus Unwuchten, die sich beim Betrieb derartiger Zentrifugen in der Praxis nicht völlig vermeiden lassen. Dies erfordert den Einsatz spezieller Motoren mit entsprechend stark ausgelegten Motorwellen und Lagerungen. Diese Motoren sind jedoch kostenintensiv und nur begrenzt verfügbar.However, this design means that forces that are introduced by the rotor into the motor shaft when the centrifuge is in operation must be absorbed via the motor bearing. These forces result in particular from imbalances, which cannot be completely avoided in practice when operating such centrifuges. This requires the use of special motors with correspondingly strong motor shafts and bearings. However, these motors are expensive and have limited availability.

Aus der Druschrift EP 1 849 525 B1 ist eine Lageranordnung für eine Zentrifuge bekannt, die eine um eine Drehachse drehbar angeordnete Zentrifugentrommel, hier als Laufkorb bezeichnet, umfasst. Der Laufkorb ist über eine oben geschlossene, zylindrische Laufkorbnabe mit einer Antriebswelle über eine Aufhängung des Laufkorbs drehfest verbunden. Die Antriebswelle erstreckt sich entlang der Drehachse in einem Lagerblock und ist an eine Antriebseinheit angekoppelt. Um eine durch dynamische Kräfte hervorgerufene Lagerkraft von der Antriebswelle im Wesentlichen zu entkoppeln, ist um die Antriebswelle und innerhalb der Laufkorbnabe ein Wellenrohr angeordnet und die Lager für den Laufkorb sind zwischen der Laufkorbnabe und dem Wellenrohr angeordnet. Durch die Entlastung der Antriebswelle des Laufkorbs von dynamischen Kräften werden derartige Kräfte auch nicht in die Antriebseinheit eingeleitet. Allerdings erfordert eine derartige Lösung einen komplexen Lageraufbau und insbesondere eine geschlossene rohrförmige Laufkorbnabe, die gegenüber einem darin befindlichen Wellenrohr gelagert ist, welches sich gehäuseseitig abstützt.From the thrush script EP 1 849 525 B1 a bearing arrangement for a centrifuge is known which comprises a centrifuge drum which is arranged rotatably about an axis of rotation, here referred to as a basket. The basket is connected to a drive shaft via a suspension of the basket via a cylindrical basket hub closed at the top. The drive shaft extends along the axis of rotation in a bearing block and is coupled to a drive unit. In order to essentially decouple a bearing force caused by dynamic forces from the drive shaft, a shaft tube is arranged around the drive shaft and within the cage hub and the bearings for the cage are arranged between the cage hub and the shaft tube. By relieving the drive shaft of the cage from dynamic forces, such forces are not introduced into the drive unit. However, such a solution requires a complex bearing structure and, in particular, a closed tubular basket hub which is mounted opposite a shaft tube located therein, which is supported on the housing side.

Die Druckschrift DE 43 14 440 C1 beschreibt eine entsprechende Lageranordnung für eine Zentrifuge. Hier ist ebenfalls die Zentrifugentrommel an der Motorwelle befestigt und das von der Zentrifugentrommel abgewandte Ende des Stators des Motors (Motorgehäuse) in dem Fußlager gehalten, so dass der Stator des Motors (Motorgehäuse) als verlängerte Lagerbrücke genutzt wird und Kräfte von der Zentrifugentrommel aufnimmt.The pamphlet DE 43 14 440 C1 describes a corresponding bearing arrangement for a centrifuge. Here, too, the centrifuge drum is attached to the motor shaft and the end of the stator of the motor (motor housing) facing away from the centrifuge drum is held in the foot bearing so that the stator of the motor (motor housing) is used as an extended bearing bridge and absorbs forces from the centrifuge drum.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Zentrifuge der vorstehend beschriebenen Art bereitzustellen, die ohne aufwändige bauliche Änderungen die Verwendung von kostengünstigeren und/oder besser verfügbaren Standardmotoren erlaubt.The invention is therefore based on the object of providing a centrifuge of the type described above which allows the use of more cost-effective and / or better available standard motors without complex structural changes.

Die Aufgabe wird gelöst durch eine Zentrifuge mit den Merkmalen des Anspruchs 1. Die Merkmale der abhängigen Ansprüche betreffen vorteilhafte Ausführungsformen.The object is achieved by a centrifuge with the features of claim 1. The features of the dependent claims relate to advantageous embodiments.

Es wird eine Zentrifuge mit vertikaler Drehachse beschrieben, mit einem Rotor, einem unterhalb des Rotors angeordneten Motor zum Drehen des Rotors und einem Fußlager, welches den Motor und den Rotor trägt. Die Zentrifuge umfasst ferner eine Motoraufnahmeeinrichtung zur Aufnahme eines Motors, wobei der Rotor über eine Rotorlagerung drehbar an der Motoraufnahmeeinrichtung befestigt ist und wobei auf der vom Rotor abgewandten Seite der Motoraufnahmeeinrichtung das Fußlager angeordnet ist.A centrifuge with a vertical axis of rotation is described, with a rotor, a motor arranged below the rotor for rotating the rotor and a foot bearing which supports the motor and the rotor. The centrifuge further comprises a motor receiving device for receiving a motor, the rotor being rotatably fastened to the motor receiving device via a rotor bearing and wherein the foot bearing is arranged on the side of the motor receiving device facing away from the rotor.

Mit anderen Worten weist die erfindungsgemäße Zentrifuge eine Motoraufnahmeeinrichtung zur Aufnahme des Motors auf, an der der Motor befestigt ist. Zu diesem Zweck ist das Motorgehäuse am oberen Ende nahe dem Rotor an der Motoraufnahmeeinrichtung festgeschraubt. Der Rotor ist über eine Rotorlagerung drehbar an der Motoraufnahmeeinrichtung befestigt. Über diese Befestigung werden die dynamischen Kräfte des Rotors zumindest teilweise von der Motoraufnahmeeinrichtung aufgenommen und wirken nicht auf den Motor oder dessen Welle. Das Fußlager ist auf der vom Rotor abgewandten Seite der Motoraufnahmeeinrichtung angeordnet, wobei das vom Rotor abgewandten Ende des Motors nicht an der Motoraufnahmeeinrichtung und somit nicht am Fußlager befestigt ist.In other words, the centrifuge according to the invention has a motor receiving device for receiving the motor to which the motor is attached. For this purpose, the motor housing is screwed tightly to the motor mounting device at the upper end near the rotor. The rotor is rotatably attached to the motor mounting device via a rotor bearing. The dynamic forces of the rotor are at least partially absorbed by the motor receiving device via this fastening and do not act on the motor or its shaft. The foot bearing is arranged on the side of the motor receiving device facing away from the rotor, the end of the motor facing away from the rotor not being attached to the motor receiving device and thus not being attached to the foot bearing.

Die Kräfte, die bei der in Fig. 1 dargestellten Zentrifuge gemäß dem Stand der Technik auf die Lagerung der Motorwelle wirken, können so von der Rotorlagerung an der Motoraufnahmeeinrichtung aufgenommen und in die Motoraufnahmeeinrichtung eingeleitet werden. Über die Motoraufnahmeeinrichtung werden diese Kräfte auf das Fußlager am unteren Ende der Motoraufnahmeeinrichtung übertragen. Das untere Ende des Motors ist frei in der Motoraufnahmeeinrichtung aufgenommen, so dass es sich bei Bewegungen des Rotors frei verlagern kann. Auf diese Weise wird die Motorwelle und die Lagerung der Motorwelle im Motor erheblich entlastet. Daher ist es möglich, auf teure und nur mit langen Lieferzeiten bestellbare Sondermotoren, deren Motorwelle und Lagerung zur Aufnahme großer Kräfte geeignet sind, zu verzichten und gewöhnliche standardisierte Elektromotoren in der Zentrifuge zu verbauen. Die Motoraufnahmeeinrichtung kann den Motor mit geringem Bauraum umgeben, weil sich der Motor während des Betriebs nur um ein geringes Maß (einige Millimeter) verlagert. Der Bauraum des Motors mit Motoraufnahmeeinrichtung ist daher unwesentlich größer als der Bauraum des Motors des Standes der Technik so dass der neue Motor mit Motoraufnahmeeinrichtung ohne weitere konstruktive Änderungen bei Zentrifugen gemäß dem Stand der Technik die bisher eingesetzten Motoren ersetzen kann.The forces involved in the in Fig. 1 The centrifuge shown according to the prior art act on the bearing of the motor shaft, can thus be received by the rotor bearing on the motor receiving device and introduced into the motor receiving device. These forces are transmitted via the motor mounting device to the foot bearing at the lower end of the motor mounting device. The lower end of the motor is freely received in the motor receiving device, so that it can move freely when the rotor moves. In this way, the motor shaft and the bearing of the motor shaft in the motor are considerably relieved. It is therefore possible to use expensive special motors that can only be ordered with long delivery times and whose motor shaft and bearings are suitable for absorbing large forces dispense with installing common standardized electric motors in the centrifuge. The motor mounting device can surround the motor with little installation space because the motor is only displaced by a small amount (a few millimeters) during operation. The installation space of the motor with motor mounting device is therefore insignificantly larger than the installation space of the motor of the prior art so that the new motor with motor mounting device can replace the motors previously used in centrifuges according to the prior art without any further structural changes.

Die Motorwelle des Motors kann in der Praxis mit dem Rotor drehfest gekoppelt sein. Es werden über diese Kopplung, zum Beispiel eine Nut-Feder-Verbindung nur die Drehmomente zwischen Motorwelle und Rotor nicht aber Querkräfte oder Biegekräfte übertragen.In practice, the motor shaft of the motor can be coupled non-rotatably to the rotor. This coupling, for example a tongue and groove connection, only transmits the torques between the motor shaft and rotor, but not transverse forces or bending forces.

Insbesondere kann die Motoraufnahmeeinrichtung einen Motor mitsamt seinem Gehäuse und seiner Motorwellenlagerung, mit der die Motorwelle im Gehäuse des Motors gelagert ist, aufnehmen. Die Motoraufnahmeeinrichtung kann Gehäuse des Motors eng umgeben, so dass sie den Bauraum des Motors nur unwesentlich vergrößert. Bei dem Motor kann es sich beispielsweise um einen handelsüblichen Asynchronmotor handeln. Der Motor kann in der Praxis mit seinem zum Rotor hinweisenden Ende an der Motoraufnahmeeinrichtung befestigt sein. In der Praxis ist ein zum Rotor hinweisender Gehäusebereich, beispielsweise ein Lagerschild, an der Motoraufnahmeeinrichtung befestigt. Das gegenüberliegende Ende des Motors ist nicht an der Motoraufnahmeeinrichtung befestigt. Somit werden Verformungen aufgrund von Querkräften oder Biegemomenten allein von der Motoraufnahmeeinrichtung aufgenommen und nicht vom Motorgehäuse.In particular, the motor receiving device can accommodate a motor together with its housing and its motor shaft bearing with which the motor shaft is supported in the housing of the motor. The motor mounting device can closely surround the housing of the motor so that it only insignificantly increases the installation space of the motor. The motor can, for example, be a commercially available asynchronous motor. In practice, the motor can be fastened to the motor receiving device with its end pointing towards the rotor. In practice, a housing area pointing towards the rotor, for example a bearing plate, is attached to the motor receiving device. The opposite end of the motor is not attached to the motor mount. Deformations due to transverse forces or bending moments are thus absorbed solely by the motor receiving device and not by the motor housing.

Das Fußlager nimmt bei der erfindungsgemäßen Zentrifuge die Motoraufnahmeeinrichtung und nicht den Motor auf. Ein solches Fußlager befindet sich bevorzugt in Verlängerung der Drehachse des Rotors. In der Praxis kann das Fußlager wie beim Stand der Technik elastisch ausgeführt sein.In the centrifuge according to the invention, the foot bearing accommodates the motor mounting device and not the motor. Such a foot bearing is preferably located in the extension of the axis of rotation of the rotor. In practice, the foot bearing can be designed to be elastic, as in the prior art.

Ein elastisches Fußlager hat den Vorteil, dass es der Anordnung aus Motoraufnahmeeinrichtung, Motor und Rotor der Zentrifuge, bei deren Stillstand oder niedrigen Drehzahlen, einen hinreichenden Halt verleiht, im Betrieb der Zentrifuge aber kleine Auslenkungen aufgrund der entstehenden dynamischen Kräfte erlaubt.An elastic foot bearing has the advantage that it gives the arrangement of the motor mounting device, motor and rotor of the centrifuge adequate support when the centrifuge is at a standstill or at low speeds, but allows small deflections during operation of the centrifuge due to the resulting dynamic forces.

Die Zentrifuge kann im Bereich des Fußlagers wie bei dem Stand der Technik gemäß Fig. 1 Mittel zum Erkennen von Unwuchten aufweisen. Diese können sich beispielsweise durch eine unregelmäßige Befüllung des Rotors ergeben. Überschreiten die Unwuchten ein gewisses Maß, so kann dies, zu Problemen führen. Die Mittel zum Erkennen von Unwuchten können daher so eingerichtet sein, dass sie beim Überschreiten einer bestimmten Unwucht ein Warnsignal abgeben und/oder die Zentrifuge abschalten und/oder stoppen. Die Befüllung der Zentrifugentrommel muss dann so geändert werden, dass die Unwuchten vermieden werden.The centrifuge can in the area of the foot bearing as in the prior art Fig. 1 Have means for detecting imbalances. This can result, for example, from irregular filling of the rotor. If the imbalances exceed a certain level, this can lead to problems. The means for detecting imbalances can therefore be set up in such a way that when a certain imbalance is exceeded, they emit a warning signal and / or switch off and / or stop the centrifuge. The filling of the centrifuge drum must then be changed in such a way that the imbalances are avoided.

Bei der Rotorlagerung kann es sich um eine Stützlagerung handeln. Die Stützlagerung kann angestellt sein. Eine Angestellte Stützlagerung hat den Vorteil, dass durch das Verspannen der Lager gegeneinander kein Lagerspiel entsteht. Dies ist insbesondere vor dem Hintergrund vorteilhaft, dass auf die Rotorlagerung wirkende Kräfte von dieser aufgenommen werden sollen, bevor diese an die Motorwelle weitergegeben werden können.The rotor bearing can be a support bearing. The support bearing can be employed. An employed support bearing has the advantage that the bracing of the bearings against each other does not result in bearing play. This is particularly advantageous against the background that forces acting on the rotor bearing should be absorbed by the latter before they can be passed on to the motor shaft.

In der Praxis kann die Rotorlagerung durch Wälzlager realisiert sein. Als Wälzlager können beispielsweise Kegelrollenlager verwendet werden. Kegelrollenlager eignen sich aufgrund des Linienkontakts zwischen Wälzkörper und Lagerringen besonders gut zur Aufnahme der auf die Rotorlagerung wirkenden Kräfte. Die Rotorlagerung kann in O-Anordnung angeordnet sein. Lager in O-Anordnung eignen sich besonders gut, um einen Kraftangriff aufzunehmen der außerhalb der Lagerstellen erfolgt. Dies ist bei einer Zentrifuge der in Rede stehenden Art beispielsweise dann der Fall, wenn der Rotor sich oberhalb der Rotorlagerung befindet. Die Unwuchten, die zu den von der Rotorlagerung aufzunehmenden Kräften führen, entstehen üblicherweise im Bereich des Rotors.In practice, the rotor bearing can be implemented using roller bearings. Tapered roller bearings, for example, can be used as roller bearings. Due to the line contact between the rolling elements and the bearing rings, tapered roller bearings are particularly suitable for absorbing the forces acting on the rotor bearing. The rotor bearing can be arranged in an O arrangement. Bearings in an O-arrangement are particularly suitable for absorbing a force that occurs outside the bearing points. In the case of a centrifuge of the type in question, this is the case, for example, when the rotor is located above the rotor bearing. The imbalances that too the forces to be absorbed by the rotor bearing usually arise in the area of the rotor.

Der Rotor kann eine Rotorwelle aufweisen. Die Rotorwelle kann innerhalb der Rotorlagerung gelagert sein. Die Rotorwelle kann koaxial zur Motorwelle angeordnet sein. Die koaxiale Anordnung beider Wellen ist insbesondere im Hinblick auf die Stabilisierung der Zentrifuge über die Kreiselkräfte der freien vertikalen Rotationsachse vorteilhaft.The rotor can have a rotor shaft. The rotor shaft can be mounted within the rotor bearing. The rotor shaft can be arranged coaxially to the motor shaft. The coaxial arrangement of the two shafts is particularly advantageous with regard to the stabilization of the centrifuge via the gyroscopic forces of the free vertical axis of rotation.

Weist der Rotor eine Rotorwelle auf, kann beispielsweise eine verdrehsteife Verbindung zwischen Motorwelle und Rotor in konstruktiv einfacher Weise realisiert werden. Beispielsweise können Motorwelle und Rotorwelle ineinandergeschoben und durch ein mit Mitnehmerelement, beispielsweise eine Passfeder, gegen Verdrehen gesichert sein. Bevorzugt wird die Motorwelle in die Rotorwelle geschoben. Hierfür geeignete Motorwellen sind häufig in Standardmotoren vorgesehen, die einfach und kostengünstig bezogen werden können.If the rotor has a rotor shaft, for example a torsionally rigid connection between the motor shaft and rotor can be implemented in a structurally simple manner. For example, the motor shaft and rotor shaft can be pushed into one another and secured against rotation by a driver element, for example a feather key. The motor shaft is preferably pushed into the rotor shaft. Motor shafts suitable for this are often provided in standard motors that can be obtained easily and inexpensively.

Vorteilhafterweise umgibt die Motoraufnahmeeinrichtung den Motor. Hierdurch kann erreicht werden, dass die Kräfte, die im Betrieb aus allen Richtungen die Rotorlagerung und damit in die Motor Aufnahmeeinrichtungen eingeleitet werden können, auch in allen Richtungen von der Motoraufnahmeeinrichtung aufgenommen werden können. Zudem wird ein weitgehend symmetrischer Aufbau der Motoraufnahmeeinrichtung um die Drehachse des Motors bzw. die Drehachse der Zentrifuge ermöglicht. Aus dem symmetrischen Aufbau erfolgt auch eine entsprechend gleichmäßige Massenverteilung der Motoraufnahmeeinrichtung.The motor receiving device advantageously surrounds the motor. In this way it can be achieved that the forces which can be introduced into the rotor bearing and thus into the motor receiving devices during operation from all directions can also be absorbed in all directions by the motor receiving device. In addition, a largely symmetrical structure of the motor receiving device around the axis of rotation of the motor or the axis of rotation of the centrifuge is made possible. The symmetrical structure also results in a correspondingly uniform mass distribution of the motor mounting device.

Die Motoraufnahmeeinrichtung kann käfigartig gestaltet sein und einen Bauraum aufweisen, der nur geringfügig größer als der Bauraum des Motors ist. Dadurch entspricht der Bauraum der Motoraufnahmeeinrichtung für einen Standard-Motor im Wesentlichen dem Bauraum des bisher eingesetzten Sondermotors. Die Anschlüsse, insbesondere die Verbindung mit dem Fußlager, können den Anschlüssen an den Sondermotors der bisherigen Ausführungsform gemäß Fig. 1 entsprechen. Die käfigartige Motoraufnahmeeinrichtung mit dem Standardmotor kann in einfacher Weise des bisherigen Sondermotor der oben genannten Zentrifuge gemäß Fig. 1 ersetzen, ohne dass weitere bauliche Änderungen der Zentrifuge erforderlich sind. Unter Beibehaltung der Gesamtkonstruktion wird somit eine zuverlässige und belastbare Zentrifuge geschaffen, die ohne Sondermotor mit einem herkömmlichen Standardmotor auskommt, weil die erheblichen dynamischen Kräfte von der Motoraufnahmeeinrichtung aufgenommen werden.The motor receiving device can be designed in the manner of a cage and have an installation space that is only slightly larger than the installation space of the motor. As a result, the installation space of the motor mounting device for a standard motor essentially corresponds to the installation space of the previously used special motor. The connections, especially the connection with the Foot bearings, the connections to the special motor of the previous embodiment can according to Fig. 1 correspond. The cage-like motor mounting device with the standard motor can easily be adapted to the previous special motor of the centrifuge mentioned above Fig. 1 without requiring any further structural changes to the centrifuge. While maintaining the overall construction, a reliable and resilient centrifuge is created that does not require a special motor with a conventional standard motor because the considerable dynamic forces are absorbed by the motor mounting device.

Die Motoraufnahmeeinrichtung kann eine Basisplatte aufweisen. Die Basisplatte kann mit dem Fußlager, beispielsweise durch einen Tragzapfen verbunden sein.The motor receiving device can have a base plate. The base plate can be connected to the footrest, for example by a support pin.

Die Motoraufnahmeeinrichtung kann ferner eine Kopfplatte aufweisen. Die Kopfplatte ist an dem dem Rotor zugewandten Ende der Motoraufnahmeeinrichtung angeordnet. Der Motor kann an der Kopfplatte befestigt sein. Er ist vorzugsweise ausschließlich an der Kopfplatte befestigt, so dass sich das Motorgehäuse relativ zu anderen Bereichen der Motoraufnahmeeinrichtung frei bewegen kann. Folglich kann sich die Motoraufnahmeeinrichtung aufgrund der dynamischen Kräfte leicht verformen, ohne dass das Motorgehäuse dadurch belastet wird. Die obere Kopfplatte kann in der Praxis ringförmig gestaltet sein. Die ringförmige Gestaltung der Kopfplatte erlaubt es, die Motorwelle durch die Kopfplatte hindurchzuführen, um sie mit dem Rotor zu verbinden.The motor receiving device can also have a head plate. The head plate is arranged on the end of the motor receiving device facing the rotor. The motor can be attached to the head plate. It is preferably attached exclusively to the top plate, so that the motor housing can move freely relative to other areas of the motor receiving device. As a result, the motor receiving device can easily deform due to the dynamic forces without the motor housing being stressed. The upper head plate can in practice be designed in a ring shape. The ring-shaped design of the head plate allows the motor shaft to be guided through the head plate in order to connect it to the rotor.

Die Basisplatte kann mit der Kopfplatte durch Verbindungsstreben verbunden sein. Diese können sich stabförmig und/oder stangenförmig mit geringem Abstand parallel zum Gehäuse des Motors erstrecken. Mit einer derartigen Konstruktion aus Basisplatte, Kopfplatte und Verbindungsstreben lässt sich in einfacher Weise eine Motoraufnahmeeinrichtung realisieren, die den Motor käfigartig umgibt und dabei keinen Wesentlich größeren Bauraum in Anspruch nimmt als der Motor selbst.The base plate can be connected to the top plate by connecting struts. These can extend rod-shaped and / or rod-shaped with a small distance parallel to the housing of the motor. With a construction of this type made up of a base plate, head plate and connecting struts, a motor mounting device can be implemented in a simple manner, which surrounds the motor in a cage-like manner and does not take up any significantly larger installation space than the motor itself.

Weiterhin kann die Zentrifuge eine Bremse aufweisen. Die Bremse kann zwischen der Kopfplatte der Motoraufnahmeeinrichtung und dem Rotor (Zentrifugentrommel oder Trommelaufnahme) angeordnet sein. Es kann sich dabei um eine Hysteresebremse handeln. Eine Hysteresebremse ist eine Bremse, die auf der Wirkung eines Magneten oder Elektromagneten auf ein sich relativ zum Magneten bzw. Elektromagneten bewegendes ferromagnetisches Material basiert. Durch die wiederholte Ummagnetisierung des ferromagnetischen Materials entsteht ein Energieverlust. Die Bremse kann nach Art einer Trommelbremse gestaltet sein. Die Bremstrommel kann dabei an dem Rotor befestigt sein und die Magnete an der Kopfplatte. Auf diese Weise werden auch die Bremskräfte beim Abbremsen des Rotors in die Motoraufnahmeeinrichtung eingeleitet und nicht über den Motor selbst.The centrifuge can also have a brake. The brake can be arranged between the top plate of the motor mounting device and the rotor (centrifuge drum or drum mounting). It can be a hysteresis brake. A hysteresis brake is a brake that is based on the action of a magnet or electromagnet on a ferromagnetic material moving relative to the magnet or electromagnet. The repeated magnetization of the ferromagnetic material results in a loss of energy. The brake can be designed in the manner of a drum brake. The brake drum can be attached to the rotor and the magnets to the head plate. In this way, the braking forces when braking the rotor are also introduced into the motor receiving device and not via the motor itself.

Weitere praktische Ausführungsformen und Vorteile der Erfindung sind nachfolgend im Zusammenhang mit den Zeichnungen beschrieben. Es zeigen:

Fig. 1
eine Zentrifuge nach dem Stand der Technik in einer Schnittdarstellung.
Fig. 2
eine Motoraufnahmeeinrichtung mit Motor und Rotor einer erfindungsgemäßen Zentrifuge in einer Seitenansicht.
Fig. 3
eine Motoraufnahmeeinrichtung mit Motor und Rotor der Zentrifuge aus Fig. 2 in einer Schnittdarstellung.
Fig. 4
eine Detaildarstellung des in Fig. 3 kreisförmig markierten Bereiches.
Further practical embodiments and advantages of the invention are described below in connection with the drawings. Show it:
Fig. 1
a centrifuge according to the prior art in a sectional view.
Fig. 2
a motor mounting device with motor and rotor of a centrifuge according to the invention in a side view.
Fig. 3
a motor mounting device with the motor and rotor of the centrifuge Fig. 2 in a sectional view.
Fig. 4
a detailed representation of the in Fig. 3 circularly marked area.

Nach dem Stand der Technik, dargestellt in Fig. 1, besteht eine Zentrifuge 10 aus einem Motor 16, der in einem Fußlager 18 gehalten ist und einen Rotor 12 trägt. Der Rotor 12 ist im vorliegenden Fall nicht die Zentrifugentrommel selbst sondern eine Trommelaufnahme mit einem Haltegerüst 11 und einer Aufnahmeplatte 13, auf die eine Zentrifugentrommel (nicht dargestellt) aufstellbar ist. Der Rotor 12 der Zentrifuge 10 ist direkt auf der Motorwelle 14 des Motors 16 befestigt. Nach dem Stand der Technik muss die Lagerung des Motors 16 sowohl die Gewichtskräfte der Zentrifugentrommel mit deren Füllung als auch die dynamischen Kräfte aufnehmen, die aus Unwuchten des Rotors und seiner Füllung resultieren. Diese Kräfte werden über die Motorwelle 14 in den Motor 16 eingeleitet und über das Gehäuse des Motors 16 abgeleitet. Das Gehäuse des Motors 16 ist an einem Fußlager 18 befestigt, das den Motor 16 mit dem daran befestigten Rotor 12 trägt.According to the prior art, shown in Fig. 1 A centrifuge 10 consists of a motor 16 which is held in a foot bearing 18 and a Rotor 12 carries. In the present case, the rotor 12 is not the centrifuge drum itself, but rather a drum holder with a holding frame 11 and a mounting plate 13 on which a centrifuge drum (not shown) can be set up. The rotor 12 of the centrifuge 10 is attached directly to the motor shaft 14 of the motor 16. According to the prior art, the mounting of the motor 16 has to absorb both the weight forces of the centrifuge drum with its filling and the dynamic forces that result from imbalances in the rotor and its filling. These forces are introduced into the motor 16 via the motor shaft 14 and diverted via the housing of the motor 16. The housing of the motor 16 is fastened to a foot bearing 18 which carries the motor 16 with the rotor 12 fastened to it.

Bei der hier vorgeschlagenen, neuen Zentrifuge ist der Motor 16 in einer Motoraufnahmeeinrichtung 20 aufgenommen ist. Der Rotor 12 ist mit der Motoraufnahmeeinrichtung 20 an deren oberem Ende drehbar über eine Rotorlagerung 22 verbunden. Eine entsprechende beispielhafte Anordnung aus Motoraufnahmeeinrichtung 20, Motor 16 und Rotor 12 ist in den Figuren 2-4 dargestellt. Das obere Ende des Motors 16 ist über Befestigungsschrauben 48 (s. Fig. 4) mit einer Kopfplatte 40 der Motoraufnahmeeinrichtung 20 fest verschraubt. Das gegenüberliegende untere Ende des Motors 16 ist nicht mit der Motoraufnahmeeinrichtung 20 verbunden und kann sich frei bewegen.In the new centrifuge proposed here, the motor 16 is accommodated in a motor receiving device 20. The rotor 12 is rotatably connected to the motor receiving device 20 at its upper end via a rotor bearing 22. A corresponding exemplary arrangement of motor receiving device 20, motor 16 and rotor 12 is shown in FIG Figures 2-4 shown. The upper end of the motor 16 is secured by fastening screws 48 (see Fig. Fig. 4 ) firmly screwed to a head plate 40 of the motor mounting device 20. The opposite lower end of the motor 16 is not connected to the motor mounting device 20 and can move freely.

Das an der Motoraufnahmeeinrichtung 20 befestigte Fußlager 18 kann bei der in den Figuren 2-4 gezeigten Anordnung entsprechend dem in Fig. 1 dargestellten Stand der Technik ausgebildet sein. Das gleiche gilt für das äußere Gehäuse 24 der Zentrifuge 10 sowie deren weitere, in den Figuren 2 bis 4 nicht dargestellten Bestandteile. Folglich lässt sich die neue Motoraufnahmeeinrichtung 20 mit Standardmotor problemlos in eine existierende Zentrifuge einbauen.The foot bearing 18 fastened to the motor mounting device 20 can be used in the case of the Figures 2-4 arrangement shown in accordance with the in Fig. 1 be formed prior art shown. The same applies to the outer housing 24 of the centrifuge 10 and the others in the Figures 2 to 4 components not shown. As a result, the new motor mounting device 20 with a standard motor can be installed in an existing centrifuge without any problems.

Das Fußlager 18 kann, wie in Fig. 1 dargestellt, einen Tragzapfen 26 halten, der an der Basisplatte 36 der Motoraufnahmeeinrichtung 20 angeformt ist. An dem Tragzapfen 26 ist ein scheibenförmiges Element 28 angeformt, welches zwischen elastischen Elementen 30 (s. Fig. 1) fixiert ist. Die elastischen Elemente 30 werden entlang der Konstruktionsachse X und damit entlang der Achse des Tragzapfens 26 mit einer Vorspannkraft beaufschlagt.The foot bearing 18 can, as in Fig. 1 shown, hold a support pin 26 which is formed on the base plate 36 of the motor receiving device 20. A disk-shaped element 28 is formed on the support pin 26, which is sandwiched between elastic elements 30 (see FIG. Fig. 1 ) is fixed. The elastic elements 30 are subjected to a prestressing force along the construction axis X and thus along the axis of the support pin 26.

Die Rotorlagerung 22 kann wie in dem in Fig. 4 gezeigten Beispiel als angestellte Stützlagerung ausgeführt sein. Als Lager werden Kegelrollenlager in O-Anordnung verwendet. Die Kegelrollenlager der Rotorlagerung 22 sind in den Figuren 3 und 4 lediglich schematisch dargestellt.The rotor bearing 22 can as in the in Fig. 4 shown example be designed as an employed support bearing. Tapered roller bearings in an O arrangement are used as bearings. The tapered roller bearings of the rotor bearing 22 are in the Figures 3 and 4th shown only schematically.

Der Rotor 12 kann wie im gezeigten Beispiel eine Rotorwelle 32 aufweisen, die auf der Unterseite des Rotors 12 angeordnet ist und innerhalb der Rotorlagerung 22 gelagert ist. Die Rotorwelle 32 überträgt sämtliche auf den Rotor 12 wirkenden Gewichtskräfte und dynamischen Kräfte beim Drehen des Rotors 12 über die Rotorlagerung 22 auf die Motoraufnahmeeinrichtung 20. Die Rotorwelle 32 ist im gezeigten Beispiel über eine Passfederverbindung 34 drehfest mit der Motorwelle 14 gekoppelt. Motorwelle 32 und Motorwelle 14 sind im gezeigten Beispiel koaxial zueinander und zur Konstruktionsachse X angeordnet.As in the example shown, the rotor 12 can have a rotor shaft 32 which is arranged on the underside of the rotor 12 and is mounted within the rotor bearing 22. The rotor shaft 32 transmits all of the weight forces and dynamic forces acting on the rotor 12 when the rotor 12 rotates via the rotor bearing 22 to the motor mounting device 20. In the example shown, the rotor shaft 32 is rotatably coupled to the motor shaft 14 via a feather key connection 34. In the example shown, motor shaft 32 and motor shaft 14 are arranged coaxially to one another and to the construction axis X.

Die Motoraufnahmeeinrichtung 20 weist eine platten- bzw. tellerförmige Basisplatte 36 aufweisen. An der Basisplatte 36 ist der Tragzapfen 26 des Fußlagers 18 befestigt.The motor mounting device 20 has a plate-shaped or plate-shaped base plate 36. The support pin 26 of the foot bearing 18 is attached to the base plate 36.

Die Basisplatte 36 ist über stabförmigen Verbindungsstreben 38 mit einer Kopfplatte 40 der Motoraufnahmeeinrichtung 20 verbunden. Die Kopfplatte 40 kann - wie dargestellt - ringförmig ausgebildet sein. Kopfplatte 40, Basisplatte 36 und Verbindungsstreben 38 bilden so die Motoraufnahmeeinrichtung 20, die den Motor 16 käfigartig umgibt. Der gesamte Bauraum der Motoraufnahmeeinrichtung 20 entspricht im Wesentlichen dem Bauraum des Motors, so dass die Motoraufnahmeeinrichtung 20 mit dem Motor 16 ohne weiteres den Motor 16 in Sonderbauform bei der Ausführungsform der Fig 1 ersetzen kann. Der Motor 16 ist mit seinem Gehäuse wie oben beschrieben mit Befestigungsschrauben 48 an der Kopfplatte 40 befestigt, wobei sein unteres Ende nicht mit der Motoraufnahmeeinrichtung 20 verbunden ist und sich frei bewegen kann.The base plate 36 is connected to a head plate 40 of the motor mounting device 20 via rod-shaped connecting struts 38. The head plate 40 can — as shown — be of annular design. Head plate 40, base plate 36 and connecting struts 38 thus form the motor receiving device 20, which surrounds the motor 16 like a cage. The entire installation space of the motor mounting device 20 essentially corresponds to the installation space of the motor, so that the motor receiving device 20 with the motor 16 can easily connect the motor 16 in a special design in the embodiment of FIG Fig 1 can replace. The motor 16 is fastened with its housing to the head plate 40 with fastening screws 48 as described above, its lower end not being connected to the motor receiving device 20 and being able to move freely.

Zwischen dem Rotor 12 und der Motoraufnahmeeinrichtung 20 ist eine Bremse 42 angeordnet. Die Bremse 42 ist als Hysteresebremse ausgeführt. Die Bremse 42 ist im gezeigten Beispiel lediglich schematisch dargestellt. Sie weist als erstes Teil einen ringförmigen Elektromagneten 44 zur Erzeugung eines Magnetfelds auf, der an der Kopfplatte 40 der Motoraufnahmeeinrichtung 20 befestigt ist. An der Aufnahmeplatte 13 des Rotors 12 ist eine ferromagnetische Trommel 46 als zweites Teil der Bremse befestigt. Die Trommel 46 umgibt den Elektromagneten 44. Die Bremskräfte, die durch das Abbremsen des Rotors 12 entstehen, werden auf diese Weise über die Kopfplatte 40 der Motoraufnahmeeinrichtung 20 aufgenommen und belasten nicht den Motor 16 oder seine Motorwelle 14. In der Praxis kann auch eine Bremse verwendet werden, die das Rückspeisen elektrischer Energie während des Abbremsvorgangs in einen Stromspeicher ermöglicht.A brake 42 is arranged between the rotor 12 and the motor receiving device 20. The brake 42 is designed as a hysteresis brake. The brake 42 is shown only schematically in the example shown. As a first part it has an annular electromagnet 44 for generating a magnetic field, which is fastened to the head plate 40 of the motor mounting device 20. A ferromagnetic drum 46 is attached to the mounting plate 13 of the rotor 12 as the second part of the brake. The drum 46 surrounds the electromagnet 44. The braking forces generated by the braking of the rotor 12 are absorbed in this way via the head plate 40 of the motor mounting device 20 and do not load the motor 16 or its motor shaft 14. In practice, a brake can also be used can be used, which enables electrical energy to be fed back into a power storage unit during the braking process.

Die in der vorliegenden Beschreibung, in den Zeichnungen sowie in den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebigen Kombinationen für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungsformen wesentlich sein. Die Erfindung ist nicht auf die beschriebenen Ausführungsformen beschränkt. Sie kann im Rahmen der Ansprüche und unter Berücksichtigung der Kenntnisse des zuständigen Fachmanns variiert werden.The features of the invention disclosed in the present description, in the drawings and in the claims can be essential both individually and in any combination for the implementation of the invention in its various embodiments. The invention is not restricted to the embodiments described. It can be varied within the scope of the claims and taking into account the knowledge of the competent specialist.

Bezugszeichen listeList of reference symbols

1010
Zentrifugecentrifuge
1111
AufnahmekäfigReceiving cage
1212th
Rotorrotor
1313
AufnahmeplatteMounting plate
1414th
MotorwelleMotor shaft
1616
Motorengine
1818th
FußlagerFoot bearings
2020th
MotoraufnahmeeinrichtungMotor mounting device
2222nd
RotorlagerungRotor bearing
2424
Gehäusecasing
2626th
stabförmiges Elementrod-shaped element
2828
scheibenförmiges Elementdisc-shaped element
3030th
elastisches Elementelastic element
3232
RotorwelleRotor shaft
3434
PassfederverbindungKey connection
3636
BasisplatteBase plate
3838
VerbindungsstrebeConnecting strut
4040
KopfplatteHeadstock
4242
Bremsebrake
4444
ElektromagnetElectromagnet
4646
ferromagnetische Trommelferromagnetic drum
4848
BefestigungsschraubeFastening screw
XX
KonstruktionsachseConstruction axis

Claims (10)

  1. Centrifuge (10) with a vertical axis of rotation, comprising a rotor (12), a motor (16) arranged below the rotor (12) for rotating the rotor (12) and a base bearing (18) supporting the motor (16) and the rotor (12),
    further comprising a motor mounting device (20) for receiving a motor (16), wherein the rotor (12) is rotatably attached to the motor mounting device (20) via a rotor bearing (22),
    characterised in that the base bearing (18) is arranged on the side of the motor mounting device (20) remote from the rotor (12) and the end of the motor (16) remote from the rotor (12) is not attached to the motor mounting device (20).
  2. Centrifuge (10) according to claim 1,
    characterized in
    that a motor shaft (14) of the motor (16) is coupled to the rotor (12) in a rotationally fixed manner.
  3. Centrifuge (10) according to claim 1 or 2,
    characterized in
    that the rotor bearing (22) is an adjusted support bearing.
  4. Centrifuge (10) according to one of the preceding claims,
    characterized in
    that the rotor (12) has a rotor shaft (32) which is mounted inside the rotor bearing (22).
  5. Centrifuge (10) according to claim 4,
    characterized in
    that the rotor shaft (32) and the motor shaft (14) are arranged coaxially.
  6. Centrifuge (10) according to one of the preceding claims,
    characterized in
    that the motor mounting device (20) surrounds the motor (16).
  7. Centrifuge (10) according to one of the preceding claims,
    characterized in
    that the motor (16) is fixed to the motor mounting device (20) with its end adjacent the rotor (12).
  8. Centrifuge (10) according to one of the preceding claims,
    characterized in
    that the motor mounting device (20) comprises the following:
    • a base plate (36);
    • a head plate (40);
    • a plurality of connecting rods (38) extending in the direction of the motor shaft (14) and having their ends fixed to the base plate (36) on the one hand and to the head plate (40) on the other hand.
  9. Centrifuge (10) according to claim 8,
    characterized in
    that a trunnion (26) is arranged on the base plate (36) and is held in the base bearing (18).
  10. Centrifuge (10) according to one of the preceding claims,
    characterized in
    that a brake (42), in particular a hysteresis brake, is arranged between the motor mounting device (20) and the rotor (12), wherein optionally a part (44) of the brake is attached to the head plate (40) of the motor mounting device (20) and a part (46) of the brake is attached to the rotor (12).
EP19160802.5A 2018-03-15 2019-03-05 Centrifuge Active EP3552712B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19160802T PL3552712T3 (en) 2018-03-15 2019-03-05 Centrifuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018106079.3A DE102018106079B3 (en) 2018-03-15 2018-03-15 centrifuge

Publications (2)

Publication Number Publication Date
EP3552712A1 EP3552712A1 (en) 2019-10-16
EP3552712B1 true EP3552712B1 (en) 2020-12-30

Family

ID=65717787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19160802.5A Active EP3552712B1 (en) 2018-03-15 2019-03-05 Centrifuge

Country Status (4)

Country Link
EP (1) EP3552712B1 (en)
DE (1) DE102018106079B3 (en)
HU (1) HUE054097T2 (en)
PL (1) PL3552712T3 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314440C1 (en) 1993-05-03 1994-06-16 Kyffhaeuser Maschf Artern Gmbh High torque centrifuge - has rotating components inelastically suspended with rotating system, bearing bridge, motor stator, joined as single constructional and vibrational unit
DE102006011895A1 (en) * 2006-03-15 2007-09-20 Westfalia Separator Ag Separator arrangement in sanitary design
EP1849525B1 (en) 2006-04-25 2016-09-07 Ferrum AG Bearing assembly for a centrifuge
CN104703705A (en) * 2012-05-22 2015-06-10 Gea机械设备有限公司 Drive apparatus for separator arrangement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3552712A1 (en) 2019-10-16
PL3552712T3 (en) 2021-06-28
HUE054097T2 (en) 2021-08-30
DE102018106079B3 (en) 2019-07-04

Similar Documents

Publication Publication Date Title
EP2358467B1 (en) Mixer
DE102012009987B4 (en) laboratory ball mill
DE2138898A1 (en) ADJUSTABLE ASYNCHRONOUS MOTOR WITH A MULTIPLE ROTOR SYSTEM
DE102012009984A1 (en) Laboratory ball mill, particular planetary- or centrifugal force-mono ball mill for crushing and mixing of samples, has carrier device which is rotatably mounted around central axis and grinding station with receiving device
DE102012206755A1 (en) Control rod assembly for adjusting rotor blade of helicopter, has axle housing comprising eccentric structure accommodated in swash plate-side bearing center, and bearing structure accommodated in swash plate-side bearing block
DE102012009982A1 (en) Laboratory ball mill e.g. planetary mono ball mill for crushing material, has receiving device rotatably mounted to carrier device, which is provided with cage and clamping element for axial clamping of grinding vessel in cage
EP2428788A1 (en) Device for providing a rotating bearing for a rotor to be balanced
EP3552712B1 (en) Centrifuge
EP3110557B1 (en) Centrifuge
EP3650590B1 (en) Spinning machine and spindle rail
DE2934710C2 (en) Rotor for rotating energy storage
DE2141502B2 (en) Essentially rigid recirculating body bearings
DE2754623A1 (en) Flywheel for driving rail or road vehicle - has stub shafts with intermediate hollow conical components coupled to flywheel at larger ends
DE672606C (en) Wind power machine with slewing mechanism
DE3204472A1 (en) Rotary bending machine
DE102010062250A1 (en) Rotor for e.g. electromotor used in hybrid drive of hybrid vehicle, has vibration damper that is arranged along the region of rotational axis for damping axial oscillation of rotor
DE4434221C2 (en) Motor-driven unbalance vibrator
AT411288B (en) DEVICE FOR CONVERTING ELECTRICAL TO HYDRAULIC ENERGY
EP1847337B1 (en) Drive arangement for a rotor of a straightening machine for straightening of wire
DE102022204900B3 (en) Spring-loaded gearbox housing II
DE3325566A1 (en) Apparatus for driving centrifuges
DE4331073C1 (en) Wind power converter having as a free gyroscope an axis of rotation which preferably extends vertically
DE3730407C1 (en) Mounting of rotors for wind energy converters having a vertical rotor arrangement
DE666946C (en) Spin dryer
DE102008032945A1 (en) Electrical direct drive for machine assembly, has device fixing stator and propelled rotor that is connected with machine assembly, where automatic balancing device is provided with concentric unbalance overall system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200407

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200624

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

INTC Intention to grant announced (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20201015

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019000595

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1349403

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210115

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: MICHELI AND CIE SA, CH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210330

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210330

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20201230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210430

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E054097

Country of ref document: HU

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502019000595

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

26N No opposition filed

Effective date: 20211001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210305

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: HU

Payment date: 20220227

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210430

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20220324

Year of fee payment: 4

Ref country code: PL

Payment date: 20220225

Year of fee payment: 4

Ref country code: CZ

Payment date: 20220225

Year of fee payment: 4

Ref country code: BE

Payment date: 20220322

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230320

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201230

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230331

Year of fee payment: 5

Ref country code: DE

Payment date: 20230530

Year of fee payment: 5

Ref country code: CH

Payment date: 20230402

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230305

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230305

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230306

Ref country code: HU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230306

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230331