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EP3268122A1 - Centrifugeuse comprenant des rotors pouvant être remplacés - Google Patents

Centrifugeuse comprenant des rotors pouvant être remplacés

Info

Publication number
EP3268122A1
EP3268122A1 EP16714769.3A EP16714769A EP3268122A1 EP 3268122 A1 EP3268122 A1 EP 3268122A1 EP 16714769 A EP16714769 A EP 16714769A EP 3268122 A1 EP3268122 A1 EP 3268122A1
Authority
EP
European Patent Office
Prior art keywords
rotor
dual
centrifuge
drive
drive shaft
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.)
Granted
Application number
EP16714769.3A
Other languages
German (de)
English (en)
Other versions
EP3268122B1 (fr
Inventor
Klaus-Günter Eberle
Ulrich Massing
Vittorio ZIROLI
Anke-Christine Lenz
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.)
Andreas Hettich GmbH and Co KG
Original Assignee
Andreas Hettich GmbH and Co KG
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 Andreas Hettich GmbH and Co KG filed Critical Andreas Hettich GmbH and Co KG
Publication of EP3268122A1 publication Critical patent/EP3268122A1/fr
Application granted granted Critical
Publication of EP3268122B1 publication Critical patent/EP3268122B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/10—Mixers with rotating receptacles with receptacles rotated about two different axes, e.g. receptacles having planetary motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/15—Use of centrifuges for mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
    • B02C17/08—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with containers performing a planetary movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/02—Centrifuges consisting of a plurality of separate bowls rotating round an axis situated between the bowls
    • 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
    • B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
    • B04B5/0414—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes
    • 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
    • B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
    • B04B5/0414—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes
    • B04B5/0421—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes pivotably mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/10—Centrifuges combined with other apparatus, e.g. electrostatic separators; Sets or systems of several centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/352—Bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/33—Transmissions; Means for modifying the speed or direction of rotation

Definitions

  • the invention relates to a dual centrifuge according to the specified in the preamble of claim 1. Art.
  • standard centrifuges are used in the field of biology and chemistry for substance separation.
  • a standard centrifuge is understood to mean both table centrifuges and stationary centrifuges, which have a safety boiler and a safety lid, the bowl diameter being 15-65 cm, preferably 20-50 cm. It is possible to remove rotors, but also to exchange them. Since high speeds are required for the separation of mixtures, these reach maximum speeds of 25,000 rpm. From the prior art dual centrifuges are already known in the field of laboratory technology, with which, in contrast to these standard centrifuges, no separation of substances is made, but very efficient mixtures, Homogenizations, grinding processes, extractions or else
  • Tissue digestions are performed.
  • rotary units are located in the rotor which receive containers of samples to be processed and which are one different from the main axis of rotation of the rotor
  • a further drive mechanism for the rotary units is provided in addition to the drive mechanism for the rotor.
  • the further drive mechanism is implemented in different ways in the various known dual centrifuges.
  • DE 102 43 439 A1 discloses a dual centrifuge in which the further drive mechanism for the rotary units is mounted below the rotor.
  • the further drive mechanism consists of a fixed wedge disk on the Motor housing and a wedge disk connected to the rotary unit on the rotor, both of which are connected by a V-belt.
  • Another example is the dual centrifuge described in DE 10 20 12 105 819 A1, in which a gearwheel underneath the rotor is fastened in a torque-proof manner to the housing of the centrifuge motor.
  • Rotary units each have teeth in their peripheral area, which engage in the gear.
  • DC dual centrifuge
  • the further drive mechanism can also be integrated in a hollow shaft, as disclosed in JP 2009119587 A, but this arrangement of the further drive mechanism makes the expansion and replacement of the rotor even more complicated.
  • the object of the invention is to develop a dual centrifuge while avoiding the disadvantages mentioned that rotors for dual centrifuges, hereinafter referred to as DC rotors, can be changed easily and quickly, especially without additional tools, and that also with and same centrifuge also other types of centrifuge rotors, such as
  • angular rotors or swing-bucket rotors can be used.
  • a dual centrifuge for mixing, homogenization, milling, etc. temporarily becomes a conventional centrifuge for separating samples. The dimensions of the centrifuge are still kept compact.
  • the invention is based on the finding that a rotor for a dual centrifuge can be designed such that it can be removed from the dual centrifuge or inserted into the dual centrifuge without further measures. Furthermore, the dual centrifuge and other rotor types without further rotation mechanism, namely at least one angle head rotor or a swing-bucket rotor, be adapted to each other so that in the dual centrifuge both rotors with more
  • Rotary mechanism and rotors without further rotation mechanism can be used equally without causing a malfunction.
  • the drive for the further rotary mechanism of the DC rotor for example, mounted on the housing of the centrifuge motor gear can be designed and installed space-saving that conventional rotors, such as a swing bucket rotor or a fixed angle rotor, used without further adaptation in the centrifuge can be.
  • the dual centrifuge therefore has a drive shaft, a mounted on the drive shaft, axially removable in a removal direction DC rotor with at least one rotary unit, a bearing for the rotor, which is connected to the drive shaft and holds the rotor at least against the removal direction , An opening in the rotor, in which the drive shaft engages at least with the end region, and a further drive mechanism for the rotary unit or the
  • the centrifuge for operating different other types of rotors, at least one angle head rotor or a
  • Ausschwingrotors formed by the bearing, the drive shaft and the various rotor types are adapted to each other. Only one of these rotors can be arranged on the drive shaft.
  • the other types of rotors without further rotation mechanism are also adapted to the drive means for the further rotation mechanism so that there is no
  • the angle head rotor and the swing-bucket rotor have a geometry which is dimensioned such that when the angle head or swing-bucket rotor is mounted, the drive means for the further rotary mechanism for the rotor of the dual centrifuge is arranged contactlessly with respect to the mounted rotor.
  • This coordinated design of the swing-out and angle rotor ensures that it does not come into contact with the rotationally fixed gear.
  • the rotationally fixed gear can be made as space-saving and flat construction, so that other rotors can be used without further measures.
  • a set of different types of rotors is provided, and each rotor of that set has a quick release for receipt and fixation on the drive shaft.
  • This quick release may for example be a screw, e.g. can be easily and quickly solved or closed with an Allen key, or a pressure mechanism, which makes opening and closing even easier.
  • the drive means for the further drive mechanism is installed and / or adapted so that non-dual rotors can also be operated without adaptation in the dual centrifuge.
  • Drive mechanism so space-saving designed and installed that previously provided for standard centrifuges rotors can be used without further rotation mechanism without adjustment in the centrifuge and used.
  • the drive means may be implemented as a single, very small gear.
  • the drive means for the further drive mechanism may be formed by a rotatably mounted gear, in which engages the teeth of the rotary unit with insertion in the arranged in the centrifuge dual rotor or with insertion of the dual rotor with the rotary units in the centrifuge.
  • the rotationally fixed gear and the gears of the rotary units of a dual rotor can have such a coordinated geometry that they automatically engage - without further action - when inserting the dual rotor with the rotary units or each of the rotary unit in the arranged in the centrifuge rotor.
  • Another advantage here is that it is also possible with such a space-saving designed drive means for the further drive mechanism, this subsequently incorporated into a centrifuge developed for standard purposes and then to use this centrifuge for a dual centrifugation. This results in very low costs when using a centrifuge series housing.
  • a safety boiler is provided, in which the rotor and the bearing are arranged, and in which the drive shaft protrudes at least partially.
  • the drive shaft is designed as a solid shaft.
  • the necessary stability in the drive of the respective rotor is more easily achieved and allows easier change.
  • at least one rotary unit for the rotor of a dual centrifuge has a rotary bearing and one connected to the rotary bearing, in this via a
  • Rotary mechanism of the centrifuge is driven.
  • the drive means of the further drive mechanism is a toothed wheel, which is fixedly connected to the motor housing and is penetrated by the drive shaft.
  • This type of mechanism is easy to implement, inexpensive and comparatively less prone to failure.
  • gear heights from 3 mm to 8 mm are possible.
  • a height of 6.5 mm has proven to be a good compromise in practice with regard to the two factors mentioned above.
  • a set of different rotors of a dual centrifuge having different ratios is provided between the further rotating mechanism and the rotary unit.
  • a rotor of a dual centrifuge in which a gear is mounted centrally so that the gear and the rotor form a structural unit and the rotor is rotatable relative to the gear during operation ,
  • the shaft of the centrifuge passes through the gear in the mounted state, engages in the DC rotor and drive this.
  • holding means such as retaining pins, are provided which engage in rotation with the insertion of the rotor into the centrifuge housing in recesses of the motor housing.
  • FIG. 1 is a side sectional view of a dual centrifuge according to the invention with a
  • Figure 2a is a side sectional view of the DC rotor shown in Figure 1 and the rotor near region of the drive motor ..;
  • FIG. 2b shows a side sectional view of a further embodiment according to the invention of a DC rotor in the removed state and the rotor near region of the drive motor.
  • Fig. 2c is a perspective view of a DC rotor mounted on a drive shaft as shown in Figs. 1, 2a and 2b;
  • Fig. 3a is a side sectional view of an invention mounted on a drive shaft
  • FIG. 3b shows a perspective view of the angle-head rotor and the drive motor mounted on a drive shaft shown in FIG. 3a;
  • 4a is a side sectional view of an inventively mounted on a drive shaft
  • Swing-bucket rotor and the rotor-near area of the drive motor and 4b is a perspective view of the mounted on a drive shaft Ausschwingrotors shown in Figure 4a and the drive motor ..; 1 shows a side sectional view of a dual centrifuge 10 according to the invention with a DC rotor 20 mounted on a drive motor 12.
  • the dual centrifuge 10 is surrounded by a housing 11 which comprises a bottom 11a and a housing cover 11b to be opened. When the housing cover 11b is open, the DC rotor 20 can be removed in a removal direction E vertically from the underside 11a.
  • FIG. 2a shows the DC rotor 20 shown in FIG. 1 in the state mounted on the drive motor 12, wherein only the region of the drive motor 12 close to the rotor is depicted without the housing 11.
  • the DC rotor 20 is surrounded within the housing 11 by a concentric with the DC rotor 20 arranged safety boiler 60.
  • the safety boiler 60 has a circumferential side wall 60a, which is formed in one piece and of the same material with a arranged below the DC rotor 20 boiler bottom 60b. Concentric with the side wall 60a, a recess 60c is provided in the bottom of the vessel 60b, which is penetrated by the drive motor 12.
  • the outer circumference of the drive motor 12 and the recess 60c are adapted to each other and provided with a seal, not shown for the sake of clarity. In the case of a rotor crash, for example, any flying parts as well as leaking centrifuging material remain inside the safety boiler 60.
  • the drive motor 12 which has a cylindrical motor shaft 14 and surrounds a motor housing 12a, is fixedly connected to the bottom 11a.
  • the motor shaft 14 is in one piece and
  • End region 16a has.
  • the end region 16a tapers in the withdrawal direction E and engages in regions in the assembled DC rotor 20.
  • Through the motor shaft 14 and the drive shaft 16 extends a drive axis A.
  • a rotor hub 22 of the DC rotor 20 has a concentric with the drive axis A arranged opening 22a, the inner contour is partially adapted to the outer contour of the end portion 16a and also in the removal direction E rejuvenated.
  • a quick release 24 is provided which engages in the opening 22a, the end portion 16a of the drive shaft 16 partially encloses and the DC rotor 20 by means of a pressure mechanism, not shown in FIG ensures against unintentional removal of the drive shaft 16.
  • a pressure mechanism for example, a screw which is easily solvable by Allen key, could be selected as easily releasable closure.
  • the rotary units 30 include a rotatably mounted rotary head 34 for storing sample container receptacles, not shown, for sample containers with samples to be processed and a housing 35, in which a bearing 36 is inserted for the rotary head 34, in which in turn the rotary head 34 with a at its the housing 35 facing side provided, for clarity, not shown, bearing shaft engages.
  • the rotary units 30 have a rotationally symmetrical outer profile, which in the
  • Aperture 26 associated areas is adapted to the inner profile of the opening 26, and a central axis of rotation R, around which they rotate in operation.
  • rotary units 30 are mounted symmetrically with respect to the opening 22a such that their axes of rotation R intersect on the drive axis A above the opening 22a.
  • a further drive mechanism 32 is provided, which is a stationary centric gear 32a and at both rotating units 30 each a circumferential
  • Gearing 32b includes.
  • the central gear 32a is disposed on the DC rotor 20 side facing on the motor housing 12a concentric with the drive axis A so that it
  • Recesses 33a engage in the motor housing 12a.
  • the dimensions of the recesses 33 a are adapted to the dimensions of the retaining pins 33.
  • the central gear 32c is set in the mounted state of the DC rotor 20 so that it does not rotate with the DC rotor 20 during operation.
  • the rotary units 30 are set in rotation when, during operation of the centrifuge 10, the teeth 32b mesh via the central gear 32c.
  • FIG. 2b For a better overview, Fig. 2c shows a perspective view of the DC rotor 20 and the
  • Fig. 3a shows a suitable for attachment to the drive motor 12 according to the invention
  • Angle head rotor 40 and the rotor near region of the drive motor 12 in a side sectional view In this case, the angle head rotor 40 is shown in the removed from the drive motor 12 state.
  • the angle head rotor has centrally a rotor hub 42 and an opening 42 a through which the
  • Drive shaft 16 engages in the assembled state in the angle head rotor 40.
  • Analogous to the previously described DC rotor 20 is on the side facing away from the drive motor 12 side of
  • Angle head rotor 40 centrally a quick release 44 is provided, in which the end portion 16a of the drive shaft 16 engages when mounting the angle head rotor 40 on the drive motor 12 and is set by a clarity not shown in detail printing mechanism.
  • mounting holes 46 are provided over its circumference for receiving sample containers, not shown, each having a longitudinal axis 46a.
  • the receiving bores 46 are obliquely set so that their longitudinal axes 46a intersect above the drive shaft 16 with the drive axis A at an acute angle. From this lateral sectional view four receiving holes 46 can be seen.
  • a central gear 32a is arranged on the motor housing 12a on the motor housing 12a as part of the further drive mechanism 32 required for driving the rotary units 30 in such a way that it is penetrated by the drive shaft 16.
  • Angle head rotor 40 can be used.
  • Fig. 3b mounted on the drive motor 12 state.
  • Fig. 4a shows a side sectional view of a drive motor 12 mounted on the drive motor
  • Sample container with samples to be centrifuged are arranged pivotally. Analogous to
  • the swing-bucket rotor 50 has a central opening 52 a, in which the
  • a quick release 54 is centrally provided, in which the end portion 16a of the drive shaft 16 engages when placing the Ausschwingrotors 50 on the drive motor 12 and is set by a clarity not shown in detail printing mechanism.
  • a central recess 52 b assigned to the central gear 32 a is provided in the rotor hub 52, which is dimensioned larger than the central gear 32 a, so that the central gear 32 a is seated
  • Swinging bucket rotor 50 does not come into contact with the rotor hub 52.
  • DC rotors 20 provided dual centrifuge 10 and a swing-bucket rotor 50 can be used. LIST OF REFERENCE NUMBERS

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Centrifugal Separators (AREA)

Abstract

L'invention concerne une centrifugeuse double (10) comportant : un arbre d'entraînement (16) ; un rotor (20) destiné à une centrifugeuse double, qui est monté sur l'arbre d'entraînement (16), qui peut être retiré de manière axiale dans une direction de retrait (E), et qui comporte au moins une unité rotative (30) ; une ouverture (18) dans le rotor (20), dans laquelle l'arbre d'entraînement (16) vient en prise au moins par une zone d'extrémité (16a) ; et un autre mécanisme d'entraînement (32) pour l'unité rotative ou les unités rotatives (30). De plus, la centrifugeuse double présente une configuration permettant de faire fonctionner différents autres types de rotors, un unique rotor (20, 40, 50) pouvant être toutefois disposé sur l'arbre d'entraînement (16), et les divers types de rotor (40, 50) étant adaptés également à l'autre mécanisme d'entraînement (32) pour les unités rotatives (30) de manière à ne pas entraver le bon fonctionnement. L'invention se distingue par une configuration permettant de faire fonctionner au moins un rotor angulaire (40) et un rotor libre (50). De plus, l'arbre d'entraînement (16) et les divers types de rotors (40, 50) sont adaptés les uns aux autres. Le palier (36), l'arbre d'entraînement (16) et les divers types de rotor (40, 50) sont adaptés les uns aux autres. Chaque rotor (40, 50) non double présente une forme géométrique ayant des dimensions telles que lorsque le rotor (40, 50) est monté, un moyen d'entraînement (32a) de l'autre mécanisme d'entraînement (32) pour les unités rotatives (30) est disposé sans contact par rapport au rotor (40, 50) monté.
EP16714769.3A 2015-03-13 2016-03-11 Centrifugeuse avec rotors remplaceables Active EP3268122B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015103752.1A DE102015103752A1 (de) 2015-03-13 2015-03-13 Zentrifuge
PCT/EP2016/055306 WO2016146527A1 (fr) 2015-03-13 2016-03-11 Centrifugeuse comprenant des rotors pouvant être remplacés

Publications (2)

Publication Number Publication Date
EP3268122A1 true EP3268122A1 (fr) 2018-01-17
EP3268122B1 EP3268122B1 (fr) 2019-02-13

Family

ID=55697145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16714769.3A Active EP3268122B1 (fr) 2015-03-13 2016-03-11 Centrifugeuse avec rotors remplaceables

Country Status (4)

Country Link
US (1) US10682616B2 (fr)
EP (1) EP3268122B1 (fr)
DE (1) DE102015103752A1 (fr)
WO (1) WO2016146527A1 (fr)

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DE102015103752A1 (de) * 2015-03-13 2016-09-15 Andreas Hettich Gmbh & Co. Kg Zentrifuge
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CN113083475A (zh) * 2021-03-03 2021-07-09 江南大学 一种破碎离心一体装置
DE102021114370A1 (de) * 2021-06-02 2022-12-08 Andreas Hettich Gmbh & Co. Kg Vakuum-Zentrifuge und Verfahren
CN113337381B (zh) * 2021-06-30 2022-09-30 成都导胜生物技术有限公司 自动研磨装置及在获取单细胞中的应用
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Publication number Publication date
US10682616B2 (en) 2020-06-16
DE102015103752A1 (de) 2016-09-15
EP3268122B1 (fr) 2019-02-13
WO2016146527A1 (fr) 2016-09-22
US20180036694A1 (en) 2018-02-08

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