EP0642834B1 - Verriegelungsvorrichtung für eine Lageranordnung, insbesondere für die Separationskammer einer Zentrifuge - Google Patents
Verriegelungsvorrichtung für eine Lageranordnung, insbesondere für die Separationskammer einer Zentrifuge Download PDFInfo
- Publication number
- EP0642834B1 EP0642834B1 EP94113911A EP94113911A EP0642834B1 EP 0642834 B1 EP0642834 B1 EP 0642834B1 EP 94113911 A EP94113911 A EP 94113911A EP 94113911 A EP94113911 A EP 94113911A EP 0642834 B1 EP0642834 B1 EP 0642834B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking device
- bearing
- per
- shaft
- carrier
- 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
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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
- B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
- B04B5/0442—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation
Definitions
- the invention provides a locking device for a known one Bearing arrangement of a centrifuge.
- the known bearing arrangement exists from at least three rotatably mounted on a journal, rotationally symmetrically arranged, lying in one plane rollers, the Run and store a race between them, with the trunnions on a carrier device are arranged, which in turn about a central axis is rotatably mounted, aligned with the axis of rotation of the race and the Race is driven by a drive device so that the Carrier device and the race, based on a stationary housing, with rotate at different angular speeds.
- the centrifuge has one formed as a disposable part, having a raceway separation chamber to which a line is firmly connected, and which between the Rollers is stored, the free-floating hose section or Line part by means of a arranged on the rotating support device Driver with half the angular speed compared to the rotating Separation chamber is diverted so that twisting around its Longitudinal axis is avoided.
- the carrier device is in the Centrifuge technology also called rotor.
- a centrifuge with a generic bearing arrangement for storing the Separation chamber is, for example, in the German, to the applicant declining, patent application 42 20 232.9 described.
- a similar Bearing arrangement is known from JP 56 / 76260A.
- At the last one described bearing arrangement is a hollow cylindrical axis section guided between a total of six casters, one above the other in two levels are arranged, with three rollers in the form of Ball bearings are arranged rotationally symmetrical. It is on the in essentially vertical hollow axis section at its upper End a separation chamber arranged, and one at its lower end Drain line connected.
- the bearing arrangement known from the prior art is thus one Exchange of the guided race or axle section, or one of them connected separation chamber only very complicated to handle what is particularly troublesome where the bearing arrangement for a centrifuge in Hospital operation is used.
- Centrifuges with a generic Bearing arrangements are used especially for cell separation of the body's own Liquids, such as blood in particular, are used in the separation chamber and the line firmly connected to it, often made of plastic as a disposable part are trained.
- In daily hospital operations are on a centrifuge carried out a large number of centrifuging processes for cell separation, each time - for reasons of incompatibility - the one-way separation chamber needs to be replaced.
- the state of the art Known bearing arrangement carries a centrifuge with such use a generic bearing arrangement for a significant time delay.
- the invention is therefore based on the object for a generic Bearing arrangement to create a locking device that is quick Removing the race and in particular one connected to it Separation chamber or a quick insertion enables, and the easy to operate and is robust.
- the solution to the problem is with a generic bearing arrangement solved a locking device in which the bearing pin on in Carrier device eccentrically relative to this rotatably mounted bolt are arranged in which one with the same angular velocity as that Carrier device rotating or rotating gear component with the Bolt is engaged so that it engages with the transmission component standing bolt at the same time as the gear component rotates relative to the Carrier device are rotated, and the transmission component over at least a coupling member is coupled to a shaft mounted in the housing, and Means are provided for a relative movement in the transmission component Embossed with respect to the carrier device.
- the invention is particularly directed to a bearing arrangement of only three rollers arranged in a rotationally symmetrical manner in one plane are. But it is easily conceivable that the invention for one Bearing arrangement to use, with at least six rollers in two Layers are arranged one above the other, as is the case in the prior art is known.
- this Gearbox component with the bolts bearing the bearing pins of the rollers is engaged, a hollow shaft which is coaxial with the axis of rotation of the Carrier device or the rotor and with the axis of rotation of the race is arranged.
- a hollow shaft which is coaxial with the axis of rotation of the Carrier device or the rotor and with the axis of rotation of the race is arranged.
- the gears arranged on the circumference of the bolts as segments be designed so that a toothing is provided only in the area is where it is actually needed.
- a particularly robust design that is particularly suitable for one Continuous operation in the hospital is suitable.
- It is also planned to compact design of the entire bearing arrangement or centrifuge further promote that the hollow shaft via roller bearings in one with the rotor rotating bearing flange is mounted that a gear shaft to Drive of the race is mounted on roller bearings in the hollow shaft and that the rotor is supported in the housing via roller bearings. That way so to speak, a concentric structure of the entire arrangement created, the enables a space-saving arrangement of all roller bearings and more helps to build the entire device compact.
- one arranged on the housing Motor is provided with an output shaft on which two disks are arranged are, of which a first via a first traction means, in particular in the form a drive belt that drives the rotor, and a second pulley over a second traction device, again in the form of a drive belt, with the same Speed drives the hollow shaft.
- a first traction means in particular in the form a drive belt that drives the rotor
- a second pulley over a second traction device again in the form of a drive belt
- the axes of the Switching rollers in a direction transverse to the direction of movement of the drive belt are movable.
- the axes of the two switching rollers are preferred arranged on a common, slidable sled that over it with an actuating means, for example in the form of a Linear motor, can be connected, which is electrically controllable.
- An arrangement of the is advantageous Driving belt of the shape that the outside of the driving belt on the two Switching rollers is guided while the inside of the driving disc is facing.
- Two further rollers in the form of are advantageous Tensioning rollers are provided which have a wrap angle of 180 ° around the Enable shift rollers as well as the belt tension on one for the maintain the necessary voltage.
- an arrangement can be selected in which the Hollow shaft via an epicyclic gear, in particular a planetary gear is driven, in particular it can be provided that the hollow shaft is surrounded by a ring gear of the planetary gear, dad on one Rolling bearing is supported, which is supported on the outside of the hollow shaft.
- On One end of the hollow shaft can be arranged as a flange Planet carrier acts and carries planet gears by one on the central gear shaft arranged sun gear are driven, the Translation of the entire planetary gear is selected so that the hollow shaft rotates at the same speed as the rotor or the carrier device for the journals of the rollers holding the race.
- stationary Ring gear enables normal operation of the centrifuge.
- the ring gear can be rotated, for example by a resting drive belt, or preferably via an external toothing, in which a gear engages an actuator.
- Both embodiments of the invention are particularly suitable for one Arrangement of rollers that are only in one plane, but an arrangement of rollers in more than one plane, in particular in two Levels, is easily possible.
- the rollers one in Cross section of concave or convex tread and the Race complementary to convex or concave in cross section shaped tread so that when merged in the axial direction Rollers, i.e. closed locking device in the axial direction the separation chamber or the race is positively locked, so that the race and the part connected to it, especially one Separation chamber to be guided safely.
- the locking device designed according to the invention it is possible stationary, i.e. non-rotating controls that are arranged on the housing of a centrifuge, for example that the handling of the locking device is very simple.
- Farther is an electrical actuation of the locking device easily possible without an electrical switching current via rotating contacts, for example in the form of slip rings.
- Farther can the locking according to the invention in any position of the rotor (the Carrier device) are operated.
- the invention is for all rotating Bearing arrangements suitable in which a movement from a stationary Housing introduced into a rotating system, for example a rotor shall be.
- a centrifuge 10 has a separation chamber 12 in which one Liquid, for example blood, separated into components of different densities shall be.
- the separation chamber 12 is in one piece with a race 14 formed, the tread 16 is convex in cross section. With the convex Tread 16 engages the race 14 in corresponding complementary concave molded treads 18 from three rollers 20, one of which is shown in FIG and 3 only one is visible due to the cut.
- the three Rollers 20 lie in one plane and are rotationally symmetrical, i.e. With a central angle of 120 °.
- Each roller 20 is on one Bearing journal 22 is supported by means of two ball bearings 24.
- the separation chamber 12 has a connection to the race 14 Flange 26, which has an external toothing 28. In the external toothing 28 engages a pinion 30 which is connected to a shaft 32.
- the shaft 32 is mounted on two ball bearings 34 in a carrier device 36, which also is referred to as a rotor.
- the shaft 32 is driven by a Motor 38 with an output shaft 40 working area.
- the output shaft 40 carries at one end, facing away from the motor 38, a pulley 42 which is referred to in this context as the third pulley.
- the third Pulley 42 drives a belt 44 at one end of one centrally arranged drive shaft 46 arranged pulley 48 and thus the drive shaft itself.
- the drive shaft 46 carries on its other End of a gear 50, which with another, arranged on the shaft 32
- Gear 52 forms a reduction.
- the motor 38 thus drives via the output shaft 40, which consists of the pulley 42, Driving belt 44 and pulley 48 existing traction mechanism, the Drive shaft 46, the reduction consisting of the gear wheels 50 and 52, the shaft 32 and the pinion 30 are provided with the external toothing 28 Flange 26 and thus the separation chamber 12, which rotates, whereby due to the centrifugal forces, heavier components of the Blood is collected to the outside while lighter constituents pass through a hose 54 connected centrally to the separation chamber 12 can be deducted.
- the separation chamber 12 is over the Race 14 mounted between the three rollers 20, the bearing pin 22nd as well as the shaft 32 are mounted in the carrier device 36.
- the separation chamber 12 is with the race 14 and the gear flange 26 formed in one piece and firmly connected to the hose 54. Both parts together are made of plastic as a disposable part.
- the rotor 36 consists of an essentially hollow cylindrical part 60, the downward towards a cylindrical flange 62 smaller Diameter continues.
- the Housing 66 does not rotate and so forms for further description a fixed coordinate system. It is already on the housing 66 mentioned engine 38 flanged.
- the flange 62 of the rotor 36 continues into a pulley 68 which of a belt 70 is driven.
- the belt 70 runs on one Pulley 72, which in turn is on the output shaft 40 of the motor 38 is arranged and thus rotates at the same angular velocity as the pulley 42.
- the pulley 72 is used in this context also referred to as the first pulley.
- the overall translation of the drive train described for the Separation chamber 12 and the translation from the output shaft 40 to Rotor 36 is dimensioned so that the required double mentioned Speed ratio for the separation chamber 12 sets.
- the rotor 36 takes the free flying hose section 56 of the driver 58 Hose with which the hose 54 despite the rotation of the Separation chamber 12 remains untwisted.
- the bearing pins 22 of the rollers 20 are eccentric on bolts 74 arranged by means of bearings 76 rotatably in the carrier device or in the rotor 36 are arranged.
- the rollers by turning the respective bolt 74 to pivot outwards, as indicated by the partial representation 80 is.
- a locking device is provided to pivot or twist the bolts 74 simultaneously from the outside to perform.
- the Bolts 74 are each segment-shaped on their circumference trained gear 82 connected.
- the interlocking circumferential styles of segment-shaped gears 82 are in engagement with a central arranged gear 84, which is shrunk onto a hollow shaft 86, the coaxial with the drive shaft 46 and the axes of rotation of the rotor 36 and the Separation chamber 12 runs.
- the hollow shaft 86 is supported by ball bearings 88 the inside of the flange 62 of the rotor 36 is mounted.
- the inside of the Hollow shaft 86 in turn forms a bearing surface for the central drive shaft 46 for the separation chamber 12, which is mounted by means of bearings 90.
- the pulley 92 carries on its circumference a belt 94 which is driven by a pulley 96 which in This description is referred to as a second pulley.
- the Translation i.e. the ratio of the diameter between pulley 68 of the rotor 36 and the driving first pulley 72 is the same size like that between the pulley 92 of the hollow shaft 86 and the second driving pulley 96 so that rotor 36 and hollow shaft 86 with rotate at the same angular velocity when the motor 38 is turned on becomes.
- Gear 84 can be defined more generally as a gear component.
- the Transmission component 84 rotates at the same speed or in normal operation Angular velocity like the rotor 36.
- FIG. 1 at 100 designated and are shown in Fig. 2 as a schematic diagram.
- Fig. 2 shows one View of the cross section II-II in Fig. 1 seen from below.
- the drive belt 70 is indicated, which rotates the pulley 68 of the rotor 36.
- the second drive belt 94, the via the second pulley 96 and the pulley 92 of the hollow shaft 86 is running - assuming that the traction sheaves turn clockwise in Fig. 2 turn - from a running or, in other words, driving strand 102 and an accruing, free strand 104.
- the entire belt 94 runs via a total of four rollers 106, 108A, 108B and 110.
- Switching rollers 108A and 108B on a movable carriage 112 with respect to two tensioning rollers 106 and 110 arranged so that the strand 104 around the Switching roller 108A is guided with a wrap angle of 180 °, just like the strand 102 around the switching roller 108B.
- the tension rollers 106 and 110 can be spring-loaded and for the necessary belt tension to care.
- the carriage 112 can be between two Positions are moved, whereby with the motor locked, i.e. stationary pulley 96 when the carriage 112 moves in FIG.
- the strand 104 is shortened while the strand 102 is extended is synonymous with a movement of the pulley 92 in Clockwise, marking 114 is rotated by 90 °.
- marking 114 is rotated by 90 °.
- the carriage 112 can be used with a not shown in FIG Actuating rod connected, either manually or by means of a Linear motor is operated.
- a linear motor or other electronically controllable actuating means can be an electronic Control can be provided which a method of the carriage 112 and thus a Allows opening of the lock only when the separation chamber 12 has come to a standstill.
- Fig. 3 shows an alternative embodiment of the invention in which the means for the relative rotation of the gear component or gear 84 relative to one another the rotor 36 are alternatively designed.
- the other structure of the in Fig. 3rd centrifuge shown corresponds to that shown in Fig. 1, so that on a repeated explanation of the same parts is omitted.
- the planet gears run on you in normal Operation of the centrifuge fixed ring gear 124 around and through a with the central drive shaft 46 connected sun gear 126 driven.
- the pulley 42 connected to the output shaft 40 of the motor 38 drives the drive belt 44 and the pulley 48 the central Drive shaft 46, as in the embodiment shown in FIG. 1.
- the Translation of the sun gear 126, planet gears 122 and ring gear 124 existing epicyclic gear (planetary gear) is dimensioned so that the Speed of the planet carrier 120 and thus the hollow shaft 86 just as large is like the speed of the rotor 36, the pulley 68 and the Driving belt 70 is driven by the pulley 72. In normal Operation of the centrifuge therefore occurs no speed difference between the rotor 36 and the hollow shaft 86.
- a second servomotor 138 an output shaft 140 and Gear 142 a rotational movement via an external toothing 144 of the Ring gear 124 initiated so that the planet carrier 120 when stationary Sun gear 126 is rotated, synonymous with a relative Rotation of the hollow shaft 86 with respect to the rotor 36, whereby the Gear component or gear 84 via gear segments 82 and bolts 74 rotated and thus moved the rollers 20 apart, like the symbolic Representation 80 suggests.
- the servomotor 138 with a provided electronic control that opens the lock prevented while the separation chamber 12 is being driven.
Landscapes
- Centrifugal Separators (AREA)
- Mounting Of Bearings Or Others (AREA)
Description
- Fig. 1
- einen Schnitt durch eine Zentrifuge mit aufgesetzter Separationkammer und einer Verriegelungsvorrichtung für eine Lageranordnung gemäß einem ersten Ausführungsbeispiel der Erfindung,
- Fig. 2
- einen schematisierten Querschnitt längs der Linie II-II in Fig. 1, und
- Fig. 3
- einen Querschnitt durch eine Zentrifuge mit aufgesetzter Separationskammer mit einer Verriegelungsvorrichtung für eine Lageranordnung gemäß einem zweiten Ausführungsbeispiel der Erfindung.
- 10
- Zentrifuge
- 12
- Separationskammer
- 14
- Laufring
- 16
- Lauffläche (von 14)
- 18
- Lauffläche (von 20)
- 20
- Laufrolle
- 22
- Lagerzapfen
- 24
- Kugellager
- 26
- Flansch (von 12)
- 28
- Außenverzahnung (an 26)
- 30
- Ritzel
- 32
- Welle
- 34
- Kugellager
- 36
- Rotor, Trägervorrichtung
- 38
- Motor
- 40
- Abtriebswelle
- 42
- dritte Riemenscheibe
- 44
- Treibriemen
- 46
- zentrale Antriebswelle
- 48
- Riemenscheibe (von 46)
- 50
- Zahnrad
- 52
- Zahnrad
- 54
- Schlauch
- 56
- Schlauchabschnitt
- 58
- Mitnehmer
- 60
- zylinderförmiger Körper (von 36)
- 62
- Zylinderabschnitt
- 64
- Lager
- 66
- Gehäuse
- 68
- Riemenscheibe (von 36)
- 70
- Treibriemen
- 72
- erste Riemenscheibe
- 74
- Bolzen
- 76
- Kugellager
- 80
- Darstellung der geöffneteen Stellung von 20
- 82
- Zahnradsegment
- 84
- Getriebebauteil (Zahnrad)
- 86
- Hohlwelle
- 88
- Kugellager
- 90
- Kugellager
- 92
- Riemenscheibe (von 86)
- 94
- Treibriemen
- 96
- zweite Riemenscheibe
- 100
- Mittel zum Aufprägen einer Relativbewegung
- 102
- ablaufendes Trum (von 94)
- 104
- auflaufendes Trum (von 94)
- 106
- Spannrolle
- 108A, 108B
- Schaltrollen
- 110
- Spannrolle
- 112
- Schlitten
- 114
- Markierung
- 120
- Planetenradträger
- 122
- Planetenrad
- 124
- Hohlrad
- 125
- Wälzlager
- 126
- Sonnenrad
- 138
- Stellmotor
- 140
- Welle (von 138)
- 142
- Zahnrad
- 143
- erste Scheibe
- 144
- Außenverzahnung (von 124)
- 172
- zweite Scheibe
Claims (23)
- Verriegelungsvorrichtung für eine Lageranordnung einer Zentrifuge (10) mit einer als Einwegteil ausgebildeten, einen Laufring (14) aufweisenden Separationskammer (12), an welche eine Leitung (54) fest geschlossen ist, wobei die Lageranordnung aus zumindest drei jeweils auf einem Lagerzapfen (22) drehbar gelagerten,
rotationssymmetrisch angeordneten, in einer Ebene liegenden Laufrollen (20), die den Laufring (14) zwischen sich führen und lagern, besteht,
die Lagerzapfen (22) auf einer Trägervorrichtung (36) angeordnet sind, die ihrerseits um eine zentrale Achse rotierend gelagert ist, die mit der Drehachse des Laufrings (14) fluchtet,
und der Laufring (14) - und mit ihm die Separationskammer (12) - durch eine Antriebsvorrichtung (38, 40, 42, 44, 48, 46, 50, 52, 32, 30) so angetrieben wird, daß die Trägervorrichtung (36) und der Laufring (14) bezogen auf ein ortsfestes Gehäuse (66) mit unterschiedlichen Winkelgeschwindigkeiten rotieren,
dadurch gekennzeichnet,
daß die Lagerzapfen (22) auf in der Trägervorrichtung (36) relativ zu dieser verdrehbar gelagerten Bolzen (74) exzentrisch angeordnet sind, daß ein mit der gleichen Winkelgeschwindigkeit wie die Trägervorrichtung (36) rotierendes oder umlaufendes Getriebebauteil (84, 86) mit den Bolzen (74) so in Eingriff steht, daß die mit dem Getriebebauteil in Eingriff stehenden Bolzen bei Drehung des Getriebebauteils gleichzeitig relativ zu der Trägervorrichtung verdreht werden,
daß das Getriebebauteil (84) über mindestens ein Koppelglied (94; 122, 124, 142) mit einer in dem Gehäuse gelagerten Welle (40; 140) gekoppelt ist, und
daß Mittel vorgesehen sind, um dem Getriebebauteil (84, 86) eine Relativbewegung in Bezug auf die Trägervorrichtung aufzuprägen. - Verriegelungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Getriebebauteil eine Hohlwelle (86) aufweist die koaxial mit der Drehachse der Trägervorrichtung (36) (des Rotors) und mit der Drehachse des Laufrings (14) angeordnet ist.
- Verriegelungsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Hohlwelle (86) an ihrem oberen Ende mit einem Zahnrad (84) verbunden ist, dad mit jeweils am Umfang eines Bolzens (74) angeordneten Zahnrädern (82) in Eingriff steht.
- Verriegelungsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die am Umfang der Bolzen (74) angeordneten Zahnräder (82) als Segmente ausgeführt sind.
- Verriegelungsvorrichtung nach einem der Anspruch 2-4, dadurch gekennzeichnet, daß die Hohlwelle (86) über Wälzlager (88) in einem mit dem Rotor (der Trägervorrichtung) rotierenden Lagerflansch (62) gelagert ist.
- Verriegelungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Getriebewelle (46) zum Abtrieb des Laufrings (14) über Wälzlager (90) in der Hohlwelle (86) gelagert ist.
- Verriegelungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Rotor (36) über Wälzlager (64) in dem Gehäuse (66) gelagert ist.
- Verriegelungsvorrichtung nach einem der vorhergehenden Ansprüche, gekennzeichnet durch einen an dem Gehäuse (66) angeordneten Motor (38) mit einer Ausgangswelle (40), auf der zwei Scheiben (72, 96) angeordnet sind, von denen eine erste (72) über ein erstes Zugmittel (70) den Rotor (36) antreibt, und eine zweite (96) über ein zweites Zugmittel (94) mit gleicher Drehzahl die Hohlwelle (86).
- Verriegelungsvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß das zweite Zugmittel (94) in Form eines Treibriemens ausgebildet ist, daß sowohl das auflaufende (104) wie das ablaufende Trum (102) des Treibriemens (94) um jeweils eine Schaltrolle (108A, 108B) geführt ist, und daß die Achsen der Schaltrollen in einer Richtung quer zur Bewegungsrichtung des Treibriemens verschiebbar sind.
- Verriegelungsvorrichtung nach Anspruch 9, wobei die der antreibenden Scheibe (96) zugewandte Seite des (zweiten) Treibriemens (94) als Innenseite definiert ist, dadurch gekennzeichnet, daß die Außenseite des Treibriemens auf den beiden Schaltrollen geführt ist.
- Verriegelungsvorrichtung nach einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, daß der Umschlingungswinkel jeweils eines Trums (102, 104) um eine Schaltrolle (108A, 108B) 180° beträgt.
- Verriegelungsvorrichtung nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, daß die beiden Schaltrollen (108A, 108B) auf einem gemeinsamen, verschiebbaren Schlitten (112) angeordnet sind.
- Verriegelungsvorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß der Schlitten (112) mit einem Betätigungsmittel verbunden ist.
- Verriegelungsvorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß das Betätigungsmittel elektrisch ansteuerbar ist.
- Verriegelungsvorrichtung nach einem der Ansprüche 9 bis 14, dadurch gekennzeichnet, daß der Treibriemen (94) mit seiner Innenseite um zwei weitere Laufrollen (Spannrollen) (106, 110) geführt ist.
- Verriegelungsvorrichtung nach einem der Ansprüche 8 bis 15, dadurch gekennzeichnet, daß auf der Abtriebswelle (40) eine dritte Scheibe (42) angeordnet ist, die über ein Zugmittel (44) die Getriebewelle (46) antreibt.
- Verriegelungsvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß Hohlwelle (86) und Getriebewelle (46) für den Laufring (14) über ein Planetengetriebe (126, 122, 124) miteinander gekoppelt sind.
- Verriegelungsvorrichtung nach Anspruch 17, gekennzeichnet durch einen an dem Gehäuse (66) angeordneten Motor (38) mit einer Ausgangswelle (40), auf der zwei Scheiben (172, 142) angeordnet sind, von denen eine erste (172) über ein Zugmittel (70) den Rotor (36) antreibt, und eine zweite (142) über ein Zugmittel (44) die Getriebewelle (46) für den Laufring (14).
- Verriegelungsvorrichtung nach Anspruch 17, dadurch gekennzeichnet, daß die Getriebewelle (46) das Sonnenrad (126) des Planetengetriebes trägt, daß die Hohlwelle (86) einen als Flansch ausgebildeten Planetenradträger (120) aufweist und daß ein Hohlrad (124) über ein Wälzlager (125) auf der Außenseite der Hohlwelle (86) gelagert ist.
- Verriegelungsvorrichtung nach Anspruch 19, dadurch gekennzeichnet, daß die Außenseite des Hohlrades (124) mit einem zusätzlichen Antriebsmittel (138, 140, 142) in Eingriff steht.
- Verriegelungsvorrichtung nach Anspruch 20, dadurch gekennzeichnet, daß die Außenseite des Hohlrades (124) verzahnt ist und mit einem Zahnrad (142) eines Stellmotors (138) in Eingriff steht.
- Verriegelungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Laufrollen (20) einen im Querschnitt konkav geformte Lauffläche und der Laufring (14) eine im Querschnitt komplementär konvex geformte Lauffläche (16) aufweisen.
- Verriegelungsvorrichtung nach einem der Ansprüche 1 bis 22, dadurch gekennzeichnet, daß die Laufrollen (20) eine im Querschnitt konvex geformte Lauffläche und der Laufring (14) eine im Querschnitt komplementär konkav geformte Lauffläche (16) aufweisen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4330905 | 1993-09-11 | ||
DE4330905A DE4330905C2 (de) | 1993-09-11 | 1993-09-11 | Verriegelungsvorrichtung für eine Lageranordnung einer Separationskammer einer Zentrifuge |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0642834A2 EP0642834A2 (de) | 1995-03-15 |
EP0642834A3 EP0642834A3 (en) | 1995-04-19 |
EP0642834B1 true EP0642834B1 (de) | 1998-02-04 |
Family
ID=6497500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94113911A Expired - Lifetime EP0642834B1 (de) | 1993-09-11 | 1994-09-06 | Verriegelungsvorrichtung für eine Lageranordnung, insbesondere für die Separationskammer einer Zentrifuge |
Country Status (5)
Country | Link |
---|---|
US (1) | US5558769A (de) |
EP (1) | EP0642834B1 (de) |
JP (1) | JPH07213952A (de) |
DE (2) | DE4330905C2 (de) |
ES (1) | ES2114640T3 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19806374C1 (de) * | 1998-02-17 | 1999-07-01 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge mit mehrstufigem Umlaufgetriebe |
DK2525916T3 (en) * | 2010-09-13 | 2015-03-02 | Hiller Gmbh | A drive assembly in a Solid-bowl screw |
US9334927B2 (en) * | 2011-09-22 | 2016-05-10 | Fenwal, Inc. | Drive system for centrifuge with planetary gear and flexible shaft |
US9347540B2 (en) * | 2011-09-22 | 2016-05-24 | Fenwal, Inc. | Flexible shaft drive system for centrifuge with pivoting arms |
FR2985905B1 (fr) | 2012-01-23 | 2014-10-17 | Oreal | Composition comprenant au moins un polymere alcoxysilane particulier |
EP2698208A1 (de) * | 2012-08-14 | 2014-02-19 | Fresenius Kabi Deutschland GmbH | Zentrifugenvorrichtung und Verfahren zum Betreiben einer Zentrifugenvorrichtung |
DE102016212608B3 (de) * | 2016-07-11 | 2018-01-11 | B Medical Systems S.à r.l. | Agitatoreinheit zur Verwendung mit einem Blutproduktlagersystem und Blutproduktlagersystem |
CN108325761B (zh) * | 2018-02-10 | 2018-12-14 | 东台市苏泰饲料有限公司 | 一种饲料用酶制备装置 |
CN109304058B (zh) * | 2018-09-12 | 2021-06-18 | 潍坊医学院 | 一种草酸生物工程分离设备 |
EP4321255A1 (de) * | 2022-08-12 | 2024-02-14 | Sigma Laborzentrifugen GmbH | Durchflusszentrifuge und verfahren zur herbeiführung eines betriebsbereiten zustands einer durchflusszentrifuge |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3986442A (en) * | 1975-10-09 | 1976-10-19 | Baxter Laboratories, Inc. | Drive system for a centrifugal liquid processing system |
DE2848953A1 (de) * | 1978-11-11 | 1980-05-22 | Heraeus Christ Gmbh | Trennzentrifuge |
JPS5676260A (en) * | 1979-11-27 | 1981-06-23 | Asahi Chem Ind Co Ltd | Fluid communicating apparatus |
DE3242541A1 (de) * | 1982-11-18 | 1984-05-24 | Fresenius AG, 6380 Bad Homburg | Zentrifuge |
DE4220232A1 (de) * | 1992-06-20 | 1993-12-23 | Fresenius Ag | Zentrifuge |
-
1993
- 1993-09-11 DE DE4330905A patent/DE4330905C2/de not_active Expired - Fee Related
-
1994
- 1994-09-06 EP EP94113911A patent/EP0642834B1/de not_active Expired - Lifetime
- 1994-09-06 ES ES94113911T patent/ES2114640T3/es not_active Expired - Lifetime
- 1994-09-06 DE DE59405212T patent/DE59405212D1/de not_active Expired - Lifetime
- 1994-09-08 US US08/303,300 patent/US5558769A/en not_active Expired - Lifetime
- 1994-09-12 JP JP6217631A patent/JPH07213952A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE4330905A1 (de) | 1995-03-16 |
DE59405212D1 (de) | 1998-03-12 |
EP0642834A2 (de) | 1995-03-15 |
EP0642834A3 (en) | 1995-04-19 |
DE4330905C2 (de) | 1995-06-14 |
US5558769A (en) | 1996-09-24 |
JPH07213952A (ja) | 1995-08-15 |
ES2114640T3 (es) | 1998-06-01 |
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