EP0727254B1 - Broyeur centrifuge à cassette échangeable - Google Patents

Broyeur centrifuge à cassette échangeable Download PDF

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Publication number
EP0727254B1
EP0727254B1 EP96102155A EP96102155A EP0727254B1 EP 0727254 B1 EP0727254 B1 EP 0727254B1 EP 96102155 A EP96102155 A EP 96102155A EP 96102155 A EP96102155 A EP 96102155A EP 0727254 B1 EP0727254 B1 EP 0727254B1
Authority
EP
European Patent Office
Prior art keywords
rotor
centrifugal mill
grinding
motor shaft
mill according
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
Application number
EP96102155A
Other languages
German (de)
English (en)
Other versions
EP0727254B2 (fr
EP0727254A1 (fr
Inventor
Hans-Jürgen Meyer
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.)
F Kurt Retsch GmbH and Co KG
Original Assignee
F Kurt Retsch 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8004178&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0727254(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by F Kurt Retsch GmbH and Co KG filed Critical F Kurt Retsch GmbH and Co KG
Priority to DE29624206U priority Critical patent/DE29624206U1/de
Publication of EP0727254A1 publication Critical patent/EP0727254A1/fr
Publication of EP0727254B1 publication Critical patent/EP0727254B1/fr
Application granted granted Critical
Publication of EP0727254B2 publication Critical patent/EP0727254B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/062—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives with rotor elements extending axially in close radial proximity of a concentrically arranged slotted or perforated ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2216—Discharge means

Definitions

  • the invention relates to a centrifugal mill for the Laboratory operation with one coupled to a drive motor Rotor as a grinding tool, with a grinding chamber of the rotor enclosing ring sieve and one on the outer circumference of the Ring sieve arranged annular collecting container for the shredded regrind, the rotor, ring sieve and Existing grinding unit with a one Housing cover having regrind inlet opening is lockable.
  • a centrifugal mill with the aforementioned features is in the company brochure of Retsch GmbH & Co. KG, Haan, under the name "Ultra Centrifugal Mill Type ZM 1" (Page 27).
  • the so far known Centrifugal mill is in a cup-shaped housing part Rotor as a grinding tool on a so far standing Motor shaft plugged in and by means of an attached Screw fixed on the motor shaft.
  • the one from the rotor swept over grinding area is enclosed by a ring sieve, which in turn is from an annular collecting container is surrounded, so that by the high rotational speed revolving rotor crushed by the centrifugal forces over the ring sieve in the ring-shaped Collecting container enters.
  • the grinding unit formed so far is of a housing cover to be attached to the housing locked.
  • the invention is therefore based on the object Centrifugal mill with the generic features for To provide that is easier to use.
  • the basic idea of the invention provides that the annular collecting container with the on its inner circumference arranged ring sieve connected and as over the rotor slip-on removable cassette is formed and the Interchangeable cassette also the grinding chamber with rotor spanning cover that can be detached from the removable cassette having.
  • the invention has the advantage that the exchangeable cassette initially without opening the grinding chamber can be removed from the rotor, so that for the another exchangeable cassette put on and the centrifugal mill started up can be.
  • the exchangeable cassette with the shredded one Grist can be in a suitable place by lifting off its Cover opened and the contents removed completely become. This simplifies handling and also that Cleaning the so far trained as a removable cassette uniform part easier.
  • the cleaning of the swap body is still relieved if according to an embodiment of the Invention of the collecting container and the ring sieve over a Plug connection connected to each other and so far are easily separable.
  • the interchangeable cassette is opposite the cover and has a base plate enclosing the grinding chamber, wherein the bottom plate has an opening for receiving an engine or Has rotor shaft; at this Embodiment is the removable cassette together with the rotor removed from the motor shaft, resulting from it the advantage is that the grinding chamber is complete is completed. After opening the cover can insofar as the rotor can be removed from the cassette.
  • Embodiment of the invention may also be provided in known centrifugal mills at the bottom of the grinding chamber lying labyrinth plate on which the rotor with a Labyrinth design including a labyrinth seal rests as a base plate and to that extent Make part of the removable cassette.
  • a sleeve-shaped shaft extension on the motor shaft is pluggable and can be fixed on it in a rotationally fixed manner Simplification of changing the rotor and thus the better handling according to an embodiment of the Invention provided that the sleeve-shaped shaft approach of Rotor has a groove inside for receiving it entering, radially displaceable on the motor shaft Has mounted locking elements, which on the Motor shaft arranged locking elements as under Centrifugal force formed radially deflectable balls are; are useful according to an embodiment of the Invention the balls by spring force in one Cross section of the motor shaft superior locking position biased.
  • Centrifugal mill has a base body 10 on which a cup-shaped upper part 11 as a housing via screws 12 is attached.
  • a motor part 13 is seated in the base body 10, which with an upstanding motor shaft 14 over the Base body 10 protrudes and so far into the upper part 11 reaches in.
  • the housing arrangement is by a Completed upper part 11 housing cover 15, in which a connected to a material inlet 17 Funnel 16 is arranged.
  • a rotor 18 is mounted on the motor shaft 14 via a sleeve-shaped extension 19 plugged in, the connection between the rotor 18 and the motor shaft 14 itself individual results from Figure 2.
  • the rotor 18 has inside of its sleeve-shaped extension 19 a groove 20 in which is mounted on the motor shaft 14 in a radially displaceable manner and balls 21 pressed out under spring load intervention; due to the high rotational speed revolving motor shaft 14 or sleeve-shaped Approach 19 of the rotor 18 by the centrifugal force Balls 21 out into the groove 20 of the sleeve-shaped Approach 19 of the rotor 18 pressed and ensure a safe locking of the rotor; on the other hand, at The rotor 18 simply comes to a standstill from the motor shaft 14 be subtracted by pulling the balls 21 pressed into the cross section of the motor shaft 14 and thus the sleeve-shaped extension 19 from the Motor shaft 14 can be removed.
  • an exchangeable cassette 26 can be inserted into the upper part 11, which from an outer annular collecting container 27 and a ring sieve 28 fixed on its inner circumference consists of which ring sieve 28 with the exchangeable cassette installed 26 encloses the rotor 18 or the grinding chamber 25.
  • Collecting container 27 and ring sieve 28 are each such connected to each other, preferably by a Detachable plug connection for cleaning purposes uniform handling of the removable cassette 26 results.
  • the Exchangeable cassette 26 has its own top cover 29 provided with a circumferential seal 30 against the sealed outer edge of the collecting container 27 and in the other closing the collecting container 27 as well as the Grinding chamber 25 overlapping on the collecting container 27 is definable.
  • the exchangeable cassette is 26 inserted into the upper part 11 and the housing cover 15 closed, the housing cover 15 via a associated design on the cover 29 of the Exchangeable cassette 26 presses and this immovable specifies.
  • Via the material inlet 17 and the funnel 16 passes to crushing regrind in the grinding chamber 25 and is here by the high speed of rotation rotating rotor 18 with the ball lock 21 with the motor shaft 14 is connected, crushed; the crushed regrind enters the ring sieve 28 into the Collection container 27 a.
  • the housing cover 15 is opened, and the interchangeable cassette 26 closed by the cover 29 can be removed from the upper part 11 and with elsewhere opened, emptied and cleaned with due care become; if the rotor 18 is also to be changed, see above can the rotor 18 due to the described Ball lock 21 simply pulled off the motor shaft 14 become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Liquid Crystal (AREA)
  • Centrifugal Separators (AREA)
  • Polarising Elements (AREA)

Claims (7)

  1. Broyeur centrifuge pour le fonctionnement en laboratoire avec un rotor couplé à un moteur d'entraínement, servant d'outil de broyage, avec un tamis annulaire entourant l'enceinte de broyage du rotor et un réservoir collecteur annulaire disposé sur la périphérie extérieure du tamis annulaire pour le produit de broyage réduit, l'unité de broyage constituée du rotor, du tamis annulaire et du dispositif de broyage pouvant être fermée par un couvercle de boítier présentant une ouverture d'admission de produit de broyage, caractérisé en ce que le réservoir collecteur annulaire (27) est relié au tamis annulaire (28) disposé sur sa périphérie intérieure et est conçu comme un magasin interchangeable (26) pouvant être retourné autour du rotor (18) et le magasin interchangeable (26) présente un revêtement (29) recouvrant également l'enceinte de broyage (25) avec le rotor (18) et pouvant se désolidariser du magasin interchangeable (26).
  2. Broyeur centrifuge selon la revendication 1, caractérisé en ce que le réservoir collecteur (27) et le tamis annulaire (28) sont reliés ensemble par un cavalier.
  3. Broyeur centrifuge selon la revendication 1 ou 2, caractérisé en ce que le magasin interchangeable (26) présente une plaque inférieure opposée au revêtement (29) et intégrant l'enceinte de broyage (25), la plaque inférieure présentant une ouverture pour recevoir un arbre de rotor, ou un arbre de moteur.
  4. Broyeur centrifuge selon la revendication 3, caractérisé en ce que la plaque inférieure du magasin interchangeable (26) est conçue comme une plaque à labyrinthe (22) avec une garniture à labyrinthe (24) contre le rotor (18) se trouvant au-dessus de celle-ci.
  5. Broyeur centrifuge selon l'une des revendications 1 à 4, dans lequel le rotor est enfichable avec un bout d'arbre en forme de gaine sur l'arbre du moteur et peut être fixé sur celui-ci de manière à résister à la torsion, caractérisé en ce que le bout d'arbre en forme de gaine (19) du rotor (18) présente à l'intérieur un écrou (20) pour recevoir des éléments de verrouillage (21) pénétrant de l'intérieur, et disposés de manière à pouvoir être déplacés radialement sur l'arbre du moteur (14).
  6. Broyeur centrifuge selon la revendication 5, caractérisé en ce que les éléments de verrouillage disposés sur l'arbre du moteur (14) sont conçus comme des billes (21) pouvant être déviées radialement sous l'effet de la force centrifuge.
  7. Broyeur centrifuge selon la revendication 6, caractérisé en ce que les billes (21) sont prétendues par la force de ressort dans une position de verrouillage dépassant la section de l'arbre du moteur (14).
EP96102155A 1995-02-20 1996-02-14 Broyeur centrifuge à cassette échangeable Expired - Lifetime EP0727254B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29624206U DE29624206U1 (de) 1995-02-20 1996-02-14 Zentrifugalmühle mit Wechselkassette

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29502787U 1995-02-20
DE29502787U DE29502787U1 (de) 1995-02-20 1995-02-20 Zentrifugalmühle mit Wechselkassette

Publications (3)

Publication Number Publication Date
EP0727254A1 EP0727254A1 (fr) 1996-08-21
EP0727254B1 true EP0727254B1 (fr) 2001-09-05
EP0727254B2 EP0727254B2 (fr) 2006-05-03

Family

ID=8004178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102155A Expired - Lifetime EP0727254B2 (fr) 1995-02-20 1996-02-14 Broyeur centrifuge à cassette échangeable

Country Status (4)

Country Link
US (1) US5662282A (fr)
EP (1) EP0727254B2 (fr)
JP (1) JP3697593B2 (fr)
DE (2) DE29502787U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8343156B2 (en) 2007-11-07 2013-01-01 Stryker Corporation Mill head for a bone mill, the mill head including a catch tray
RU2608018C2 (ru) * 2012-06-14 2017-01-11 Рёч Гмбх Роторная мельница с прямым или косвенным охлаждением измельчительной камеры
US10974252B2 (en) 2016-03-24 2021-04-13 Retsch Gmbh Comminution device for laboratory operation, and damper for a comminution device

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002300428B2 (en) * 2001-08-06 2007-08-23 H-E Parts International Crushing Solutions Pty Ltd A Distributor Plate
US7823821B2 (en) * 2002-10-24 2010-11-02 Crushing & Mining Equipment Pty Ltd Distributor plate
AU2014227548B2 (en) * 2007-11-07 2017-06-08 Stryker Corporation Bone mill for use with a base unit
CN102357387B (zh) * 2011-07-19 2013-11-20 刘国俊 涡轮反击复合式立磨机
CN102631971B (zh) * 2012-04-16 2014-04-02 宁波亿盛电机有限公司 食物垃圾处理器中的磨碎机构
DE202012013666U1 (de) 2012-05-23 2019-05-06 Fritsch Gmbh Zerkleinerungsmühle
DE102012010064A1 (de) 2012-05-23 2013-11-28 Fritsch Gmbh Zerkleinerungsmühle
DE202012013667U1 (de) 2012-05-23 2019-04-18 Fritsch Gmbh Zerkleinerungsmühle
DE202016006714U1 (de) 2016-03-24 2017-06-29 Retsch Gmbh Zerkleinerungsvorrichtung für den Laborbetrieb und Dämpfer für eine Zerkleinerungsvorrichtung
CN112221607A (zh) * 2020-09-27 2021-01-15 王宏伟 一种安装有组合机构的生物医学辅助装置
CN112318941A (zh) * 2020-11-03 2021-02-05 武汉艺高包装彩印有限公司 制袋机双切刀废边分离收集装置
CN112718105A (zh) * 2020-12-02 2021-04-30 安徽索维机电设备制造有限公司 一种防堵塞的密闭磨砂机用除尘装置

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US2886254A (en) * 1957-09-03 1959-05-12 Rohlinger Demountable and separable pulverizer
DE1123441B (de) * 1960-03-16 1962-02-08 Gottlob Widmann & Soehne K G Elektromotorisch betriebene Siebschlaeger-Kaffeemuehle
US3180582A (en) * 1963-06-12 1965-04-27 Bath Iron Works Corp Bowl for centrifugal pulverizer
US3221997A (en) * 1963-10-28 1965-12-07 Smit Gerard Clement Electric coffee mill
DD36013B1 (de) * 1964-05-16 1968-12-05 Rotor mit ausschwingbaren Bechereinsätzen für mit höchster Drehzahl arbeitende Zentrifugen
US4699326A (en) * 1984-06-22 1987-10-13 Cedarapids, Inc. Vertical shaft impact crusher with split tub
SU1546137A2 (ru) * 1988-04-12 1990-02-28 Текелийский Свинцово-Цинковый Комбинат Им.50-Летия Октябрьской Революции Центробежна вертикальна мельница
US4844365A (en) * 1988-06-06 1989-07-04 Rossouw Pieter J Rotary impact crusher
CH688269A5 (fr) * 1992-08-21 1997-07-15 Debio Rech Pharma Sa Broyeur ultra-centrifuge et sa mise en oeuvre pour le broyage cryogénique de matériau thermosensible.
BE1007848A3 (fr) * 1993-12-14 1995-11-07 Magotteaux Int Concasseur a impact centrifuge.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8343156B2 (en) 2007-11-07 2013-01-01 Stryker Corporation Mill head for a bone mill, the mill head including a catch tray
US9655631B2 (en) 2007-11-07 2017-05-23 Stryker Corporation Mill head for a bone mill, the mill head having one or more containment rings that prevent unwanted discharge of the contents of the bone mill
US10016204B2 (en) 2007-11-07 2018-07-10 Stryker Corporation Mill head for a bone mill, the mill head having a floating cutting disc and an alignment feature for positioning the cutting disc so the disc will engage the drive spindle
US10849633B2 (en) 2007-11-07 2020-12-01 Stryker Corporation Method of converting bone stock into bone chips
US11896238B2 (en) 2007-11-07 2024-02-13 Stryker Corporation Method of converting bone stock into bone chips
RU2608018C2 (ru) * 2012-06-14 2017-01-11 Рёч Гмбх Роторная мельница с прямым или косвенным охлаждением измельчительной камеры
RU2608018C9 (ru) * 2012-06-14 2017-06-13 Рёч Гмбх Роторная мельница с прямым или косвенным охлаждением измельчительной камеры
US10974252B2 (en) 2016-03-24 2021-04-13 Retsch Gmbh Comminution device for laboratory operation, and damper for a comminution device

Also Published As

Publication number Publication date
US5662282A (en) 1997-09-02
DE29502787U1 (de) 1995-04-20
JPH08252471A (ja) 1996-10-01
EP0727254B2 (fr) 2006-05-03
JP3697593B2 (ja) 2005-09-21
EP0727254A1 (fr) 1996-08-21
DE59607599D1 (de) 2001-10-11

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