EP0154983A2 - Dispositif de verrouillage pour porte de centrifuge - Google Patents

Dispositif de verrouillage pour porte de centrifuge Download PDF

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Publication number
EP0154983A2
EP0154983A2 EP19850102849 EP85102849A EP0154983A2 EP 0154983 A2 EP0154983 A2 EP 0154983A2 EP 19850102849 EP19850102849 EP 19850102849 EP 85102849 A EP85102849 A EP 85102849A EP 0154983 A2 EP0154983 A2 EP 0154983A2
Authority
EP
European Patent Office
Prior art keywords
hook
locking
centrifuge
door
elements
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.)
Withdrawn
Application number
EP19850102849
Other languages
German (de)
English (en)
Inventor
Walter Ing. Kisslinger (Grad)
Wilhelm Vollath
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.)
Mannesmann Demag Krauss Maffei GmbH
Original Assignee
Krauss Maffei AG
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 Krauss Maffei AG filed Critical Krauss Maffei AG
Publication of EP0154983A2 publication Critical patent/EP0154983A2/fr
Withdrawn legal-status Critical Current

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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
    • B04B7/06—Safety devices ; Regulating

Definitions

  • the application relates to a device for locking the door of a centrifuge.
  • a drum rotates at a very high speed in centrifuges in order to carry out material separations by means of centrifugal forces. Solids are often separated from liquids, and a so-called solid cake remains in the filter drum, which is removed after the separation process has been carried out.
  • a peeling knife is used to remove the solid cake, which peels the solids out of the filter drum. Considerable forces are introduced into the bearing of the peeling knife via the peeling knife. Since the peeling knife storage is usually arranged in the door of the centrifuge, the door must therefore be able to be locked very firmly and reliably with the centrifuge housing.
  • the present invention has for its object to provide a device for locking the door of a centrifuge, which ensures a secure locking of the door regardless of the attention of the operating personnel.
  • this object is achieved in that a plurality of hydraulically or pneumatically movable hook elements which are movable in a locking and an opening position are fastened to the centrifuge housing, which engage in the locking position in receiving elements which are fastened to the locked door.
  • the object is achieved in that a plurality of hook elements which can be moved hydraulically or pneumatically into a locking and an opening position are fastened to the door to be locked, which engage in the locking position in receiving elements which are attached to the centrifuge. Housing are attached.
  • the hook elements will perform a pivoting movement between their locking and opening positions, whereby they can be pivoted about a fixed pivot axis and one lever arm of each hook element carries the hook that comes to locking with the receiving element and the other lever arm of each hook element is acted upon hydraulically or pneumatically Drive means is connected.
  • adjustable stops for the hooks are provided on the receiving elements, which are adapted from time to time to the operating conditions.
  • a special measure that further promotes the safety of the device is to detect the locking position of the hook element by means of an electrical circuit and to enable the centrifuge to be in a rotational state only when the hook elements are in their locking position.
  • An inductive proximity switch is preferably used for this purpose, the damping lug of which is attached to the hook element and is positioned adjacent to the proximity switch in the locked position of the hook element.
  • a horizontal centrifuge is shown schematically, in which the axis of rotation of the drum is horizontal.
  • the centrifuge is mounted on a housing support 40.
  • An end face of the approximately cylindrical housing 10 can be covered by the door 12, which is shown in plan view in FIG. 1.
  • the door 12 is supported by two arms 42 (FIG. 1) which can be pivoted about the axis 60 in the manner of a hinge.
  • a number of operating elements 44 (viewing windows, etc.) are arranged in the door, which are only shown schematically here, since they are not important.
  • Fig. 1 7 devices 50 for locking the door of the centrifuge are shown schematically all around.
  • the door 12 is firmly locked to the housing 10 by means of these devices 50 (see also FIG. 2).
  • FIGS. 1 and 2 for locking the centrifuge door with the centrifuge housing are shown in detail in FIG. 3 in their embodiment according to the invention.
  • Fig. 3 shows a single one of the seven devices shown in Fig. 1 for locking the door of the centrifuge.
  • On the door 12 of the centrifuge receiving elements 16 are welded, in which hooks engage elements 14 in the locking position, which in turn are attached to the housing 10 of the centrifuge.
  • Each device 50 has a receiving element 16 and a hook element 14.
  • the hook elements 14 are attached to the housing 10 so as to be pivotable about an axis 20.
  • the pivoting of the hook elements 14 about the axis 20 takes place pneumatically or hydraulically by means of a piston rod 28, which is moved in a known manner in a piston (not shown).
  • the movement of the piston rod 28 takes place in the direction of the arrows 56.
  • a block 46 is located on the piston rod 28, to which a joint bracket 30 is articulated at 54.
  • the hinge bracket 30 is articulated with its other end section on the hook element 14 and can be pivoted about the axis 52.
  • the pivoting of the joint plate 30 with respect to the holding element 14 is limited by means of a stop (not shown), so that during this movement the hook 24 of the hook element 14 is pressed firmly into the receiving element 16 becomes.
  • the hook element 14 thus forms a lever which is pivotable about the axis 20 and one arm 22 carries the hook 24, while the other arm 26 represents the power arm on which the force-transmitting articulated bracket 30 acts.
  • the piston rod 28 is moved downward with the block 46, the articulated lug 30 pivoting downward and the hook element 14 rotating about the axis 20 in such a way that it comes out of the receiving element 16 with the hook 24.
  • each adjustable stops 32 are provided for the hook 24 of the Hakenelemen tes 14, which are adjustable, for example, by hand in such a way that a precisely fitting fit is ensured between all hook elements 14 and receiving elements 16 of a door lock.
  • a set screw 64 which is locked by means of a lock nut 48, serves as stop 32.
  • the locking position of the hook element 14 is detected by means of a proximity switch 34 which is connected to the control electronics of the centrifuge in such a way that rotation of the centrifuge is only possible when the holding elements 14 are locked.
  • the damping lugs 36 for the proximity switches 34 are attached to the holding elements 14 in such a way that they are directly adjacent to the proximity switches 34 in the locking position.

Landscapes

  • Centrifugal Separators (AREA)
EP19850102849 1984-03-16 1985-03-13 Dispositif de verrouillage pour porte de centrifuge Withdrawn EP0154983A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3409758 1984-03-16
DE19843409758 DE3409758A1 (de) 1984-03-16 1984-03-16 Vorrichtung zum zuhalten der tuer einer zentrifuge

Publications (1)

Publication Number Publication Date
EP0154983A2 true EP0154983A2 (fr) 1985-09-18

Family

ID=6230759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850102849 Withdrawn EP0154983A2 (fr) 1984-03-16 1985-03-13 Dispositif de verrouillage pour porte de centrifuge

Country Status (4)

Country Link
EP (1) EP0154983A2 (fr)
JP (1) JPS60212257A (fr)
DE (1) DE3409758A1 (fr)
GB (1) GB8431345D0 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU609354B1 (en) * 1989-07-31 1991-04-26 Dideco S.R.L. Device for closing the containment well of a blood centrifugation cell in a centrifugal machine
EP0577863A1 (fr) * 1992-07-04 1994-01-12 SIGMA LABORZENTRIFUGEN GmbH Enceinte pour centrifugeuse
EP1136745A2 (fr) 2000-03-22 2001-09-26 Eppendorf Ag Dispositif de verrouillage d'un organe de fermeture avec un boitier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9417388U1 (de) * 1994-10-29 1994-12-15 Sigma Laborzentrifugen Gmbh, 37520 Osterode Schließmechanismus für den Deckel einer Laborzentrifuge
JP6368934B2 (ja) * 2014-08-27 2018-08-08 工機ホールディングス株式会社 遠心機

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1782569U (de) 1958-08-22 1959-02-05 Johann Berger Traktorensitz aus schaumstoff.
DE7020665U (de) 1970-06-03 1970-09-10 Weininger Lothar Verriegelung fuer den deckel einer maschine.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU609354B1 (en) * 1989-07-31 1991-04-26 Dideco S.R.L. Device for closing the containment well of a blood centrifugation cell in a centrifugal machine
EP0577863A1 (fr) * 1992-07-04 1994-01-12 SIGMA LABORZENTRIFUGEN GmbH Enceinte pour centrifugeuse
EP1136745A2 (fr) 2000-03-22 2001-09-26 Eppendorf Ag Dispositif de verrouillage d'un organe de fermeture avec un boitier
DE10015010C2 (de) * 2000-03-22 2002-08-29 Eppendorf Ag Verriegelung eines Verschlusses mit einem Gehäuse
EP1136745A3 (fr) * 2000-03-22 2003-11-05 Eppendorf Ag Dispositif de verrouillage d'un organe de fermeture avec un boitier

Also Published As

Publication number Publication date
JPS60212257A (ja) 1985-10-24
DE3409758A1 (de) 1985-09-26
GB8431345D0 (en) 1985-01-23

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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

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI NL SE

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

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18W Application withdrawn

Withdrawal date: 19870126

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VOLLATH, WILHELM

Inventor name: KISSLINGER, WALTER, ING. (GRAD)