EP2794115B1 - Système de centrifugeuse - Google Patents

Système de centrifugeuse Download PDF

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Publication number
EP2794115B1
EP2794115B1 EP12798763.4A EP12798763A EP2794115B1 EP 2794115 B1 EP2794115 B1 EP 2794115B1 EP 12798763 A EP12798763 A EP 12798763A EP 2794115 B1 EP2794115 B1 EP 2794115B1
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EP
European Patent Office
Prior art keywords
elastic element
ring
centrifuge assembly
centrifuge
foot
Prior art date
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Active
Application number
EP12798763.4A
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German (de)
English (en)
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EP2794115A2 (fr
Inventor
Wilfried Mackel
Marie-Theres Sedler
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.)
GEA Mechanical Equipment GmbH
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GEA Mechanical Equipment GmbH
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Filing date
Publication date
Application filed by GEA Mechanical Equipment GmbH filed Critical GEA Mechanical Equipment GmbH
Publication of EP2794115A2 publication Critical patent/EP2794115A2/fr
Application granted granted Critical
Publication of EP2794115B1 publication Critical patent/EP2794115B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/02—Casings; Lids
    • 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
    • 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 arrangement according to the preamble of claim 1.
  • a generic centrifuge arrangement as a separator arrangement is from the US 4 007 612 A. known.
  • the state of the art also DE 10 2006 011 895 A1 and the WO 2009 / 071052A1 named.
  • the centrifuge feet for the vibration-damped installation of the machine frame, in which the drive spindle is rotatably mounted each have a circular bearing which is covered by a cover pot.
  • the circular bearing dampens the vibrations of the machine in the horizontal and vertical directions.
  • the damping properties and the spring properties of the rubber material of the circular bearing are characteristic of this.
  • the mass of the separator arrangements and the spring properties of the circular bearings (horizontal and vertical) result in a resonance frequency of the system and the damping properties of the elastic material (elastomer / rubber material) influence the amplitude in the resonance frequency range.
  • the at least one adjustable first elastic element is designed to adjust the horizontal spring stiffness and damping of the mass / spring system.
  • the centrifuge foot can depend on the design and the particular Use can be optimally matched and adjusted to the given resonance properties of the system or the resonance properties of the entire system can be influenced in a simple manner by the adjustment option on the centrifuge foot.
  • the centrifuge foot preferably has a foot support for introducing the forces of the supported centrifuge - in particular the separator - into the centrifuge foot.
  • the adjustable first elastic element is arranged above a foot support and the at least one second elastic element - preferably a round bearing or a round bearing arrangement - is arranged below the foot support, with the rigidity of the arrangement can be adjusted for the upper first elastic element with regard to the natural resonance frequencies of the rotating system, and the lower second elastic element is used for spring-loaded installation.
  • the adjustment of the pressing force in the horizontal direction also acts to adjust the suspension in the vertical direction.
  • a relatively high rigidity can be set in the horizontal direction in order to shift the resonance frequencies upwards.
  • Fig. 1 shows a centrifuge arrangement, here a separator arrangement, which has a centrifuge 1 with a centrifuge drum (not recognizable here, since covered) and a hood 2 covering the drum.
  • the drum also has a drive (for example an electric motor; cannot be seen here), see, for example, the DE 10 2006 011 895 A1 .
  • the drive is arranged in an axial extension of the rotatable drive spindle directly below the drum.
  • the drive is arranged within a machine frame 3 on which the drive spindle is rotatably mounted with at least one or more bearings (see again the generic one DE 10 2006 011 895 A1 ).
  • the entire separator - that is to say the machine frame 3 with the hood 2 and the drum and the drive - is set up or supported on at least one or more support feet 4 having elastic or damping properties on a base such as a foundation 5.
  • the support feet 4 have the preferred and advantageous - but not mandatory with regard to each element shown - the structure of the Fig. 2 on.
  • At least one (correspondingly stably designed) screw bolt 6 is used for each support leg, which is inserted vertically from below into a corresponding threaded hole 3 'of the machine frame 3 (see here for an example Fig. 4 ) (screwed).
  • the bolt 6 passes through 2 to 4 in each case vertically from below, a central bore 7a of a stepped foot support, which is designed here as a preferably circumferentially closed ring 7.
  • the ring 7 has a vertically first lower section 8 and an upper second section 9 with a smaller diameter than the first section 8.
  • an annular support surface 10 is formed on the ring 7 in the area in which the lower section 8 has a larger radius than the upper section 9.
  • At least one first - adjustable - elastic element 11 is arranged on the support surface 10 - placed here.
  • the first adjustable elements 11 can also be provided.
  • the ring could be divided into segments.
  • the first elastic element 11, here in an advantageous and simple embodiment an elastic ring, is in turn completely or at least partially covered by a pressure medium 12, preferably an annular cover plate, from above.
  • the pressure medium 12, the first elastic element 11 and the ring 7 demonstrate Fig. 2 and 3rd in a simple manner aligned vertical bores 13, 14, 15.
  • the bores 15 in the stepped ring 7 are preferably provided with a thread 16.
  • Screw bolts 17 are inserted vertically from above into the respective circumferentially distributed bores 13, 14, 15.
  • the stepped ring 7 is supported vertically downwards on a circular bearing arrangement 18 with circumferentially distributed circular bearings 19 arranged on a circle, each have an elastomer 20 between an upper and a lower plate 21, 22.
  • the circular bearing arrangement 18 is in turn placed on a lower base plate 23.
  • an outer ring 24 is also arranged / formed as an abutment for the elastic element 11, the height of which corresponds here to the total height from the circular bearing arrangement, the section of the ring 8 and the elastic element 11 and the pressure medium 12 and a gap S4.
  • the ring 24 is arranged concentrically on the outside of the ring 7, but has a circumferential gap S2, S3 or does not abut against it.
  • the outer ring 24 surrounds the circular bearing arrangement 18, as well as the foot support and the elastic element 11 to the outside.
  • the metal base plate 23 can be penetrated by bolts 26 which fix the circular bearings 19 and the inner ring 7 and, if appropriate, the outer ring 24 on the base plate 23. Not all of these bolts are shown here.
  • the outer ring 24 can also be designed Fig. 2 be molded onto the base plate (not shown here).
  • the base plate 23 can in turn be screwed directly or via further intermediate elements to a base such as a foundation (not shown here).
  • the one or more circular bearings 19 of the circular layer arrangement 18 provide spring-loaded support. They form an embodiment variant of the non-adjustable, second elastic element of claim 1.
  • An air gap S1, S2, S3 is preferably formed in each case between the outer ring 24 and the inner ring 7 and between the outer ring and the round bearing (s), so that a sufficient relative movement between these elements is possible during operation.
  • a on the ring 24 (eg with screws), radially protruding from the ring 24 towards the inside - screwed here in the area of line 25 '- cover element 25 prevents the foot support 7 and the Pressure medium 12 and the elastic element 11 vertically upwards.
  • the cover element overlaps the pressure medium 12 here.
  • the inner ring 7 - as the foot support - can move vertically to a limited extent depending on the setting of the at least one elastic element 11 (gap S4 to the cover element, here a cover ring 25).
  • the support leg described can be covered again by a cover pot, not shown here, in particular as dust protection.
  • the at least one elastic element 11 is dimensioned and arranged (as a variant of the adjustable, first elastic element of claim 1) in such a way that it is directly horizontally - here relative to the screw bolt 6 radially inwards and radially outwards - directly on the inner and the outer ring 7, 24 can be pressed, the contact pressure being adjustable.
  • This setting of the contact pressure can be done in different ways.
  • the inner abutment here is the foot support, in particular the ring 7, and the outer abutment is the outer ring 24, which can be coupled unsprung to the foundation directly or via intermediate elements (plate 23).
  • the pressure medium 12 (preferably a circumferentially closed or segmented ring) and the screw bolts 17 in their interaction form in a simple manner a first variant of a device for changing the horizontal spring and thus the rigidity of the centrifuge foot arrangement or the centrifuge foot 4, and their damping effect.
  • the vertical spring properties also change to a certain extent. This is because if the contact pressure between the elastic element 11 and the outer ring 24 is increased, the vertical suspension / support also changes due to the increased friction.
  • the inner ring 7 and the outer ring 24 are additionally designed such that the outer ring 24 overlaps the inner ring 7 with an inner ring collar 36 on an outer ring collar 37.
  • the lower, radially larger section 8 of the inner ring 7 on the outer ring collar 37 and the inner ring collar 36 of the outer ring 24 are designed in steps. In this way, the inner ring 7 is prevented by the outer ring 24 from migrating or being pulled apart vertically upwards in a particularly simple constructive manner. A separate cover element in the manner of element 25 of Fig. 2 is therefore not necessary.
  • the invention is based on the arrangements of the Fig. 2 and 3rd not limited.
  • the device for changing the rigidity could also be designed in a different way.
  • Such a wedge element arrangement is preferably formed by wedge elements 29, 31 lying on top of one another in opposite directions (see Fig. 4 ), which are horizontally adjustable relative to one another in such a way that the vertical height of the entirety of these two wedge elements 29, 31 - that is to say the height of the entire wedge element arrangement - can be varied.
  • At least one or both of the wedge elements 29, 31 are preferably - as from Fig. 5 can be seen - formed as a ring segment (s) which are arranged circumferentially distributed like a ring / ring-like.
  • it and the foot support have preferably horizontally extending bores 32, 33 which are aligned with one another and which are each penetrated by a screw bolt 34.
  • the bore 33 in the foot support 7 is preferably a threaded bore and the screw bolt 34 can, for example, rotate through the upper wedge element 31 (axially immovable relative to the wedge element) (the bore of which preferably has no thread).
  • An abutment element 35 is placed on the foot support (for example, be screwed on), which forms an upper abutment for the wedge element arrangement from the wedge elements 29, 30.
  • the abutment can also be formed by the foot itself, in which case the abutment element 35 is omitted.
  • Fig. 4 the screw 34 is rotated, the upper wedge element 31 is displaced horizontally and, accordingly, the lower wedge element 29 is pressed more or less vertically downward on the elastic element 11, which is thereby compressed more or less vertically and accordingly with a higher or lower contact pressure on the outer Ring 24 and the inner foot support 7 acts horizontally.
  • the particular advantage of the arrangement Fig. 4 is the simple horizontal adjustability, so that a partial disassembly of the centrifuge foot arrangement is not necessary for adjustment processes.
  • a separator frame 3 which is penetrated by the screw bolt 6 and which is fastened in the separator foot by means of a threaded bore 3 '.
  • one or more pressure means 12 ' in particular circumferentially distributed pressure means, are horizontally adjustable and act horizontally on the at least one or the elastic elements 11.
  • one or more of the elastic element (s) 11 are compressed horizontally and act accordingly with a higher or lower contact force on the element 11 and thus the outer ring 24 and on the other hand the inner foot support horizontally.
  • one or more circumferentially distributed screws penetrate threaded holes at the height of the one or more elastic elements 11 in the ring 24 and directly or via a pressure disk 12 'as pressure medium within the ring 24 on the one or more act on elastic elements 11.
  • the screw heads 39 can protrude from the ring 24 or can be arranged sunk in sections 38 of these bores.

Landscapes

  • Centrifugal Separators (AREA)

Claims (19)

  1. Dispositif de centrifugeuse avec une centrifugeuse, de préférence dispositif de séparateur, avec un tambour (1) dont l'axe de rotation est de préférence vertical, qui est placé sur une broche d'entraînement pouvant être entraînée en rotation par un entraînement et qui est de préférence entouré par une hotte (2), la broche d'entraînement étant montée avec possibilité de rotation dans un bâti de machine (3) qui peut être posé à son tour sur un socle (5) à l'aide d'au moins un ou de plusieurs pieds d'appui (4), dans lequel chaque pied d'appui (4) comporte au moins un premier élément élastique ajustable (11) et au moins un deuxième élément élastique (18) de préférence non ajustable, et dans lequel l'au moins un deuxième élément élastique (18) est conçu en particulier pour l'appui vertical du bâti de machine, caractérisé en ce que l'au moins un premier élément élastique ajustable (11) est conçu pour ajuster la rigidité d'élasticité horizontale et l'amortissement du système masse-ressort.
  2. Dispositif de centrifugeuse selon la revendication 1, caractérisé en ce que le premier élément élastique (11) est supporté dans le sens radial vers l'intérieur et vers l'extérieur sur des éléments (7, 24) du pied d'appui mobiles les uns par rapport aux autres de façon limitée et en ce que la force d'appui avec laquelle l'au moins un premier élément élastique (11) est serré dans le sens radial vers l'intérieur et vers l'extérieur sur les éléments (7, 24) du pied d'appui mobiles les uns par rapport aux autres de façon limitée peut être modifiée par la compression de l'élément élastique.
  3. Dispositif de centrifugeuse selon la revendication 1 ou 2, caractérisé en ce que l'au moins un premier élément élastique ajustable (11) est disposé verticalement au-dessus d'un support de pied non élastique à amortir, de préférence un anneau (7), et en ce que le deuxième élément élastique est disposé en dessous du support de pied à amortir.
  4. Dispositif de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que l'au moins un premier élément élastique (11) a une forme annulaire.
  5. Dispositif de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu une installation pour faire varier la rigidité qui présente, pour modifier la force d'appui du premier élément élastique sur a) le support de pied (7) et b) une butée, en particulier un anneau extérieur dans le sens radial (24), un moyen de pression (12) qui agit verticalement sur l'au moins un élément élastique (11).
  6. Dispositif de centrifugeuse selon la revendication 5, caractérisé en ce que le moyen de pression (12) agissant verticalement sur l'élément élastique (11) peut être ajusté verticalement à l'aide d'un outil.
  7. Dispositif de centrifugeuse selon l'une des revendications 5 ou 6, caractérisé en ce que le moyen de pression (12) agissant verticalement sur l'élément élastique (11) peut être ajusté horizontalement à l'aide d'un outil.
  8. Dispositif de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que le moyen de pression (12) est un anneau.
  9. Dispositif de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que le moyen de pression est une disposition de coins qui comporte des coins (29, 31) pouvant de préférence être déplacés horizontalement les uns par rapport aux autres.
  10. Dispositif de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que le moyen de pression (12) agit horizontalement sur l'au moins un ou les éléments élastiques (11).
  11. Dispositif de centrifugeuse selon l'une des revendications 5 à 10, caractérisé en ce qu'est prévu comme contre-appui un anneau extérieur dans le sens radial (24) qui entoure l'au moins un premier élément élastique et support de pied et/ou l'élément élastique (11) est un anneau en élastomère compressible qui est disposé entre un anneau intérieur dans le sens radial et l'anneau extérieur dans le sens radial (7, 24).
  12. Dispositif de centrifugeuse selon l'une des revendications 8 à 11, caractérisé en ce que l'anneau (7) est un anneau intérieur dans le sens radial et en ce que l'anneau intérieur dans le sens radial (7) présente une première partie (8) inférieure dans le sens vertical et une deuxième partie (9) supérieure dont le diamètre est plus petit que celui de la première partie (8).
  13. Dispositif de centrifugeuse selon l'une des revendications 8 à 12, caractérisé en ce que l'anneau (7) est un anneau intérieur dans le sens radial et en ce qu'une surface d'appui annulaire (10) est formée sur l'anneau intérieur dans le sens radial (7) et en ce que l'élément élastique (11) est disposé sur la surface d'appui (10) et/ou en ce que la surface d'appui annulaire (10) est formée sur l'anneau intérieur dans le sens radial (7) dans la région dans laquelle la partie inférieure présente un plus grand rayon que la partie supérieure (9).
  14. Dispositif de centrifugeuse selon l'une des revendications 8 à 13, caractérisé en ce que le moyen de pression (12) conformé comme un anneau, le premier élément élastique (11) et l'anneau (7) possèdent des alésages verticaux (13, 14, 15) alignés les uns sur les autres et en ce que des boulons filetés (17) à l'aide desquels l'élément élastique (11) peut être plus ou moins déformé dans le sens axial sont introduits dans les alésages (13, 14, 15) répartis sur la circonférence.
  15. Dispositif de centrifugeuse selon l'une des revendications 8 à 13, caractérisé en ce que l'anneau intérieur dans le sens radial (7) s'appuie verticalement vers le bas sur un dispositif de palier à charge radiale (18) formant le deuxième élément élastique et/ou en ce que le dispositif de palier à charge radiale (18) s'appuie sur une plaque de base (23).
  16. Dispositif de centrifugeuse selon l'une des revendications 8 à 15, caractérisé en ce que l'anneau extérieur (24) est en outre disposé/formé sur la plaque de base (23) et/ou en ce que l'anneau extérieur (24) est fixé par vissage sur la plaque de base (23).
  17. Dispositif de centrifugeuse selon l'une des revendications 8 à 16, caractérisé en ce que la hauteur verticale de l'anneau extérieur (24) correspond à la hauteur totale du dispositif de palier à charge radiale, de l'anneau intérieur (7), de l'élément élastique (11) et du moyen de pression (12) ainsi que d'un interstice (S4).
  18. Dispositif de centrifugeuse selon l'une des revendications 3 à 17, caractérisé en ce qu'un moyen de contre-appui (35) est prévu afin d'empêcher la dissociation verticale du support de pied vers le haut.
  19. Dispositif de centrifugeuse selon l'une des revendications 3 à 18, caractérisé en ce qu'un collet annulaire (37, 36) est formé sur chaque support de pied intérieur et anneau extérieur (24), ces collets annulaires (37, 36) empêchant par leur coopération la dissociation verticale du support de pied (7) vers le haut.
EP12798763.4A 2011-12-23 2012-12-12 Système de centrifugeuse Active EP2794115B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011052458U DE202011052458U1 (de) 2011-12-23 2011-12-23 Zentrifugenanordnung
PCT/EP2012/075162 WO2013092327A2 (fr) 2011-12-23 2012-12-12 Système de centrifugeuse

Publications (2)

Publication Number Publication Date
EP2794115A2 EP2794115A2 (fr) 2014-10-29
EP2794115B1 true EP2794115B1 (fr) 2020-03-18

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ID=47326192

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Application Number Title Priority Date Filing Date
EP12798763.4A Active EP2794115B1 (fr) 2011-12-23 2012-12-12 Système de centrifugeuse

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US (1) US20150209803A1 (fr)
EP (1) EP2794115B1 (fr)
CN (1) CN204159461U (fr)
DE (1) DE202011052458U1 (fr)
WO (1) WO2013092327A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014102472B4 (de) * 2014-02-25 2021-04-22 Andreas Hettich Gmbh & Co. Kg Zentrifuge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007612A (en) * 1975-08-18 1977-02-15 Linear International Corporation Washing machine balance and suspension system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547075A (en) * 1948-03-17 1951-04-03 Laval Separator Co De Sanitary foot mount for centrifuges and the like
BE621821A (fr) * 1961-08-29 Levivier Sa Des Ets
DE1657276B1 (de) * 1968-03-01 1971-07-08 Heraeus Christ Gmbh Daempfungseinrichtung fuer einen zentrifugenrotor
US3744710A (en) * 1971-11-29 1973-07-10 Maytag Co Supporting system for centrifugal extractor and motor therefor
US4283004A (en) * 1979-08-15 1981-08-11 Baxter Travenol Laboratories, Inc. Vibration attenuation support assembly for a centrifugal liquid processing apparatus
CH672009A5 (fr) * 1986-10-24 1989-10-13 Schrepfer Rudolf Ag
DE102006011895A1 (de) * 2006-03-15 2007-09-20 Westfalia Separator Ag Separatoranordnung in sanitärer Ausführung
DE102007058366A1 (de) * 2007-12-03 2009-08-06 Müller Weingarten AG Schwingungsisolierende Befestigungsvorrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007612A (en) * 1975-08-18 1977-02-15 Linear International Corporation Washing machine balance and suspension system

Also Published As

Publication number Publication date
DE202011052458U1 (de) 2013-03-25
WO2013092327A3 (fr) 2014-06-19
CN204159461U (zh) 2015-02-18
WO2013092327A2 (fr) 2013-06-27
EP2794115A2 (fr) 2014-10-29
US20150209803A1 (en) 2015-07-30

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