EP0110665B1 - Zerkleinerungsmaschine - Google Patents

Zerkleinerungsmaschine Download PDF

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Publication number
EP0110665B1
EP0110665B1 EP19830307148 EP83307148A EP0110665B1 EP 0110665 B1 EP0110665 B1 EP 0110665B1 EP 19830307148 EP19830307148 EP 19830307148 EP 83307148 A EP83307148 A EP 83307148A EP 0110665 B1 EP0110665 B1 EP 0110665B1
Authority
EP
European Patent Office
Prior art keywords
roll
roll assembly
assembly according
tooth bearing
bearing segments
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
Application number
EP19830307148
Other languages
English (en)
French (fr)
Other versions
EP0110665A3 (en
EP0110665A2 (de
Inventor
Stuart Geoffrey Gibbins Bloor
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.)
PEAK PATTERN CO Ltd
Original Assignee
PEAK PATTERN CO Ltd
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
Priority claimed from GB838314967A external-priority patent/GB8314967D0/en
Application filed by PEAK PATTERN CO Ltd filed Critical PEAK PATTERN CO Ltd
Publication of EP0110665A2 publication Critical patent/EP0110665A2/de
Publication of EP0110665A3 publication Critical patent/EP0110665A3/en
Application granted granted Critical
Publication of EP0110665B1 publication Critical patent/EP0110665B1/de
Expired 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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • 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
    • B02C18/28—Disintegrating by knives or other cutting or tearing members which chop material into fragments with spiked cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers

Definitions

  • roller crushers which are machines for crushing materials, typically minerals, usually to reduce them to particles of a particular maximum size.
  • Roller crushers comprise at least one, and usually two contra-rotating, roll assembly(ies), each provided with crushing members, e.g. teeth, on their periphery.
  • German Auslegeschrift 1 221 081 discloses a roll for a roller crusher which comprises a plurality of tooth bearing segments which are detachably mounted on a roll body.
  • each tooth bearing segment is secured to the roll body by means of a plurality of screws.
  • U.S. Patent Specification 4 219 291 discloses a plurality of circular elements which are assembled side-by-side on a drum. However, this specification does not disclose a roll which is suitable for use in a roller crusher. Rather, it discloses a rotary cutter, in which the circular elements co-operate with a bed knife assembly, to cut strands of filaments into pellets. More importantly, however, the circular cutting discs can be removed from the drum only by removing the drum assembly from its bearings, and then disassembling the apparatus, so that the cutting disc can be removed in turn from the drum, in a direction only axially thereof.
  • the present invention aims to provide roll assemblies for roller crushers, which may be improved in terms of ease of replacement of tooth bearing elements.
  • a roll assembly for a roller crusher comprising a roll body which is formed on its periphery with a plurality of grooves, a plurality of tooth bearing segments detachably mounted on the roll body and each having an arcuate portion of which an outer surface cooperates with corresponding outer surfaces of the remaining rooth bearing segments to form an outer cylindrical surface of the roll, from which cylindrical surface teeth project radially outwardly, each said arcuate portion having an inner surface which fits closely the periphery of the roll body, and each tooth bearing segment being further provided with a radially inwardly extending projection which is engaged within a respective one of the grooves, characterised in that the tooth bearing segments are arranged side-by-side in rows extending along the grooves, are axially located in their operative positions by abutment means which are disposed at both ends of the roll body and maintain the tooth bearing segments in abutting side-by-side relationship, and are radially located in their operative positions by the
  • Said grooves may extend parallel to the axis of the roll body. Alternatively, they may be dispoed helically on the roll body.
  • Said rows may extend parallel to the axis of the roll body, or alternatively, may be disposed helically on the roll body.
  • the locations of the teeth on the tooth bearing segments may be offset with respect to the axis of the roll body. Said locations may be so offset in an irregular pattern.
  • the roll body may be of one-piece construction. Alternatively, it may comprise a plurality of annuli arranged side-by-side. The length of each of said annuli may be substantially equal to the length of each of said tooth bearing segments, in a direction axially of the roll body.
  • the annuli may be mounted on a common shaft, and both the annuli and the shaft may be provided with a keyway to permit movement of the annuli axially but not angularly of the shaft.
  • Endmost ones of the tooth bearing segments may be secured to the roll body, to provide at least one of the abutment means.
  • At least one of the abutment means comprises clamping half-rings which are secured to one end of the roll body.
  • the teeth may be integrally formed with the tooth bearing segments.
  • the teeth may be in the form of removable picks, which are located in respective pick boxes formed in or provided on the tooth bearing segments.
  • Each of said projections may have a cross-section which substantially fills the cross-section of the respective groove.
  • Said grooves and/or said projections may be of substantially dovetail section.
  • Substantially the whole of the inner surface of said arcuate portion, other than said radially inwardly extending portion, may fit closely the periphery of the roll body.
  • a roller crusher comprising a housing and a roll assembly mounted in bearings in the housing and definig a nip between the roll assembly and a further member, such that material may enter the nip and be crushed by the roll assembly, wherein the roll assembly is in accordance with the first aspect of the invention, and the roll assembly is so mounted in the housing as to afford between at least one end of the roll assembly and its respective bearing a spacing which is at least equal to the width of one of the tooth bearing segments such that, upon releasing the respective abutment means, the tooth bearing segments may be slid axially along the grooves into positions in which they may be removed from the roll assembly in a direction radially of the roll assembly, without removing the roll assembly from its bearings.
  • Such a roller crusher may comprise two said roll assemblies mounted for contra-rotation and adapted to co-operate with one another to define said nip.
  • the roller crusher may further comprise a wear plate which is detachably mounted on said housing to cover at least part of said spacing.
  • a roller crusher comprises two contra-rotating roll assemblies 1, 2, the shafts 3, 4 of which are located in bearings at each end of the apparatus, the apparatus being provided with drive means for the roll assemblies within a housing generally indicated at 5.
  • each roll assembly 1, 2 has a body provided with a number of longitudinally disposed parallel dovetail-like grooves 6, and tooth bearing members 12 are formed with dovetail-like projections 7 to fit in the grooves 6.
  • the teeth are so formed and located on the rolls that those on the roll face 1 face those on the roll 2, and such that when the rolls are located in the machine and caused to rotate, the teeth will grip and crush material falling into the nip of the rolls.
  • each roll assembly 1, 2 a plurality of individual tooth bearing segments are provided, disposed side-by-side in rows along the grooves 6. As seen in cross-section in Figure 2, there are eight rows 6, and eight segments 12, spaced equally at 45° intervals around the periphery of each roll assembly 1, 2.
  • Each segment 12 is formed with an integral tooth 11, or indeed more than one tooth if so required, and each segment 12 is formed with a respective dovetail-like projection 7 to fit in respective ones of the dovetail-like grooves in the roll body surface.
  • an abutment plate 9 secured at one end of the roll body, the requisite number of segments 12 can be slid onto the roll body from the opposite end, and another abutment plate 10 secured to the roll body to hold the segments 12 in position.
  • each abutment plate 9, 10 may be secured to the end face of the roll body by means of screws which engage apertures in the roll body.
  • the abutment plate 9 may, if desired, be fixed, and the plate 10 removable.
  • the apparatus illustrated in Figures 1 and 2 provides for the replacement of the teeth of the roll assemblies considerably more simply and with drastically reduced down time of the machine, in comparison with the prior art, such that segments with worn or damaged teeth may be replaced by new segments, with the roll assemblies in situ.
  • the abutment plate 10 may be released, and slid along the shaft by a distance at least equal to the width of each segment 12.
  • the segments 12 can be slid along the roll body into the gap between the roll body and the plate 10, and then removed for replacement, radially of the roll assembly 1, 2.
  • each half-ring may be removed radially of the roll assembly 1, 2, after release from the end face of the roll body.
  • each segment 12 may have secured to its outer periphery a relatively conventional pick-box 13 in which a point-attack pick 14 is located.
  • a still further alternative is shown where the segment 12 itself serves as the pick-box, by being formed with an appropriately shaped bore 15 angularly disposed within the segment 12 and in which the pick 14 can be located.
  • each roll body is formed by a shaft 16 and a number of drum-like annuli 17 adapted to fit the shaft 16, each annulus at its periphery being formed with a number of parallel dovetail-like slots 6 to receive a number of segments 12, each provided with a corresponding dovetail-like projection 7.
  • each annulus is formed with a keyway slot 19 to locate it on the shaft 16 and by strategically positioning each keyway slot 19 on the number of annuli involved, adjacent annuli can be set on the shaft such that the teeth on the segments on the adjacent annuli are offset.
  • the offsetting can be set to provide straight rows of teeth at any required angular disposition in relation to the shaft axis, to provide rows of teeth that are helically disposed along the length of the roll, or if desired, to provide a random distribution of teeth.
  • the individual annuli 17 may be moved their own length along the shaft 16, after removal of the abutment plate 10, to enable a gap to be formed between any two adjacent annuli 17, to allow the removal and replacement of tooth bearing segments 12, without disconnecting the roll assembly from its bearings.
  • wear plates 8 which are detachably secured to the housing, to cover the clearance space between the respective end of the roll bodies and the housing, and therefore prevent oversized debris from falling through this clearance space, whilst the machine is working.
  • the wear plates 8 are firstly removed.
  • tooth bearing segments 12 are of substantially the same width as the annuli 17.
  • each section shows eight tooth bearing segments 12 at 45° intervals
  • alternative configurations of tooth bearing segments may be provided.
  • two tooth bearing segments each subtending an angle of 180°, and each having four projections 7 to fit the four corresponding grooves 6 in the respective roll body.
  • Each roll body may be formed by casting. Alternatively or additionally, the grooves 6 may be formed by suitable machining. Each roll body may be of a suitably tough material such as mild steel, keyed to a suitable, relatively small diameter, alloy shaft.
  • the tooth bearing members 12 are preferably cast from a hard wearing and impact resistant tool steel, such as manganese steel.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Claims (24)

1. Walzenanordnung für eine Quetschmühle, welche Anordnung einen Walzenkörper enthält, der an seinem Umfang mit einer Mehrzahl Rillen und einer Mehrzahl von zahntragenden Segmenten (12) versehen ist, die an dem Walzenkörper lösbar befestigt sind und jeweils einen bogenförmigen Abschnitt aufweisen, von welchem eine Außenfläche mit entsprechenden Außenflächen der übrigen zahntragenden Segmente zusammenwirkt, um eine äußere Zylinderfläche der Walze zu bilden, von der Zähne (11) radial nach außen vorstehen, wobei jeder bogenförmige Abschnitt eine Innenfläche hat, die eng zum Umfang des Walzenkörpers paßt, und jedes zahntragende Segment (12) weiterhin mit einem radial nach innen vorstehenden Vorsprung (7) versehen ist, der in einer der Rillen festgehalten ist, dadurch gekennzeichnet, daß die zahntragenden Segmente (12) Seite an Seite in Reihen angeordnet sind, die sich längs der Rillen (6) erstrekken, axial in ihren wirksamen Stellungen durch Anschlageinrichtungen (9, 10) festgelegt sind, die an beiden Enden des Walzenkörpers angeordnet sind und die zahntragenden Segmente (12) in Seite an Seite anstoßender Beziehung halten und radial in ihren wirksamen Stellungen durch den gegenseitigen Eingriff der Vorsprünge (7) in den Rillen (6) gehalten sind, wobei die Anordnung derart ist, daß beim Lösen wenigstens einer der Anschlageinrichtungen (9, 10) die zahntragenden Segmente (12) axial längs der Rillen (6) in Stellungen verschoben werden können, in denen die Vorsprünge (7) von den Rillen (6) freikommen, um einen Ausbau der zahntragenden Segmente (12) von der Walze in radialer Richtung der Walze zu gestatten.
2. Walzenanordnung nach Anspruch 1, bei der die Rillen sich parallel zur Achse des Walzenkörpers erstrecken.
3. Walzenanordnung nach Anspruch 1, bei der die Rillen sich schraubenlinienförmig am Walzenkörper erstrecken.
4. Walzenanordnung nach Anspruch 1, 2 oder 3, bei der die Reihen sich parallel zur Achse der Walzenkörpers erstrecken.
5. Walzenanordnung nach Anspruch 1, oder 3, bei der die Reihen schraubenlinienförmig an dem Walzenkörper angeordnet sind.
6. Walzenanordnung nach einem der vorhergehenden Ansprüche, bei der für jede Reihe zahntragender Segmente die Stellen der Zähne an den zahntragenden Segmenten in bezug auf die Achse des Walzenkörpers versetzt sind.
7. Walzenanordnung nach Anspruch 6, bei der für jede Reihe zahntragender Segmente die genannten Stellen in einem unregelmäßigen Muster versetzt sind.
8. Walzenanordnung nach einem der vorhergehenden Ansprüche, bei der der Walzenkörper von einstückigem Aufbau ist.
9. Walzenanordnung nach einem der Ansprüche 1 bis 7, bei der der Walzenkörper aus einer Mehrzahl von Seite an Seite angeordneten Ringen besteht.
10. Walzenanordnung nach Anspruch 9, bei der die Länge eines jeden der Ringe im wesentlichen gleich der Länge eines jeden der zahntragenden Segmente in einer Richtung axial zum Walzenkörper ist.
11. Walzenanordnung nach Anspruch 9 oder 10, bei der die Ringe auf einer gemeinsamen Welle angeordnet sind.
12. Walzenanordnung nach Anspruch 11, bei der die Ringe und die Welle eine Keilnutverbindung aufweisen, die eine axiale Bewegung der Ringe, jedoch keine Winkelbewegung derselben auf dem Schaft erlaubt.
13. Walzenanordnung nach einem der vorhergehenden Ansprüche, bei der die endseitigen zahntragenden Segmente an dem Walzenkörper festgelegt sind, um wenigstens eine der Anschlageinrichtung zu bilden.
14. Walzenanordnung nach einem der vorhergehenden Ansprüche, bei der wenigstens eine der Anschlageinrichtungen klemmende Halbringe enthält, die an einem Ende des Walzenkörpers befestigt sind.
15. Walzenanordnung nach einem der vorhergehenden Ansprüche, bei der die Zähne integral mit den zahntragenden Segmenten ausgebildet sind.
16. Walzenanordnung nach einem der Ansprüche 1 bis 14, bei der die Zähne in Form lösbarer Meißel ausgeführt sind, die in entsprechenden Meißelkästen angeordnet sind, die in den zahntragenden Segmenten ausgebildet sind.
17. Walzenanordnung nach einem der Ansprüche 1 bis 14, bei der die Zähne in Form lösbarer Meißel ausgeführt sind, die in entsprechenden Meißelkästen angeordnet sind, die an den zahntragenden Segmenten vorgesehen sind.
18. Walzenanordnung nach einem der vorhergehenden Ansprüche, bei der jeder der Vorsprünge einen Querschnitt aufweist, der im wesentlichen den Querschnitt der entsprechenden Rille ausfüllt.
19. Walzenanordnung nach einem der vorhergehenden Ansprüche, bei der die Rillen einen im wesentlichen schwalbenschwanzförmigen Querschnitt haben.
20. Walzenanordnung nach einem der vorhergehenden Ansprüche, bei der die Vorsprünge einen im wesentlichen schwalbenschwanzförmigen Querschnitt haben.
21. Walzenanordnung nach einem der vorhergehenden Ansprüche, bei der im wesentlichen die gesamte Innenfläche des bogenförmigen Abschnitts mit Ausnahme des sich radial nach innen erstreckenden Vorsprungs eng an den Umfang des Walzenkörpers angepaßt ist.
22. Quetschmühle mit einem Gehäuse und einer Walzenanordnung, die in Lagern in dem Gehäuse angeordnet ist und einen Spalt zwischen der Rollenanordnung und einem weiteren Element ausbildet derart, daß das Material in den Spalt eintreten kann und durch die Rollenanordnung zerkleinert wird, wobei die Rollenanordnung in Übereinstimmung mit einem der vorhergehenden Ansprüche ausgeführt ist und die Rollenanordnung in dem Gehäuse so montiert ist, daß sie zwischen wenigstens einem Ende der Rollenanordnung und ihrem entsprechenden Lager einen Abstand bildet, der wenigstens gleich der Breite eines der zahntragenden Segmente ist, so daß beim Lösen der entsprechenden Anschlageinrichtung die zahntragenden Elemente axial längs der Rillen in Stellungen verschoben werden können, in denen sie von der Walzenanordnung in einer Richtung radial zur Walzenanordnung entfernt werden können, ohne die Walzenanordnung aus ihren Lagern zu entfernen.
23. Quetschmühle nach Anspruch 22, enthaltend zwei der genannten Walzenanordnungen, die zur Drehung in entgegengesetzter Richtung gelagert und dazu eingerichtet sind zusammenzuwirken, um den genannten Spalt auszubilden.
24. Quetschmühle nach Anspruch 22 oder 23, weiterhin enthaltend eine Verschleißplatte, die lösbar an dem Gehäuse befestigt ist, um wenigstens einen Teil des Zwischenraums zu bedecken.
EP19830307148 1982-11-27 1983-11-23 Zerkleinerungsmaschine Expired EP0110665B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8233900 1982-11-27
GB8233900 1982-11-27
GB8314967 1983-05-31
GB838314967A GB8314967D0 (en) 1983-05-31 1983-05-31 Comminuting apparatus

Publications (3)

Publication Number Publication Date
EP0110665A2 EP0110665A2 (de) 1984-06-13
EP0110665A3 EP0110665A3 (en) 1985-09-11
EP0110665B1 true EP0110665B1 (de) 1987-06-10

Family

ID=26284515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830307148 Expired EP0110665B1 (de) 1982-11-27 1983-11-23 Zerkleinerungsmaschine

Country Status (2)

Country Link
EP (1) EP0110665B1 (de)
DE (1) DE3371966D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103127980A (zh) * 2011-11-23 2013-06-05 新乡市高服筛分机械有限公司 一种破碎机齿辊
CN103372477A (zh) * 2012-11-23 2013-10-30 无锡众望四维科技有限公司 破碎辊

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DE3336827A1 (de) * 1983-10-10 1985-04-25 Claudius Peters Ag, 2000 Hamburg Brechwalze fuer walzenbrecher
GB8612202D0 (en) * 1986-03-20 1986-06-25 Mmd Design & Consult Mineral breaker
AU2620988A (en) * 1987-11-17 1989-06-14 Extec Screens And Crushers Limited Rotary crusher
DE4123967A1 (de) * 1991-07-19 1993-01-21 Krupp Industrietech Zweiwalzenbrecher mit auswechselbaren brechzaehnen
DE4432038A1 (de) * 1994-09-09 1996-03-14 Basf Ag Polyetheramine enthaltende Kraftstoffe für Ottomotoren
AT403443B (de) * 1995-07-11 1998-02-25 Enco En Componenten Ges M B H Einrichtung zum zerkleinern harter materialien, vorzugsweise biogener abfälle
DE20108463U1 (de) 2000-11-30 2001-10-25 Schenk, Jürgen, 70188 Stuttgart Vorrichtung zur Aufbereitung von Aushub
AU762265B2 (en) * 2001-01-25 2003-06-19 Flsmidth Abon Pty Ltd Apparatus for crushing material
AUPR271201A0 (en) * 2001-01-25 2001-02-22 Abon Engineering Pty Ltd Apparatus for crushing material
FR2943630B1 (fr) * 2009-03-30 2016-06-24 Soc D'etudes Et De Rech De L'ecole Nat Superieure D'arts Et Metiers (Seram) Dispositif d'extraction de liquide contenu dans des recipients en materiau non cassant
DE102013207092A1 (de) * 2013-04-19 2014-10-23 Takraf Gmbh Brechwalze für einen Walzenbrecher
DE102015206957B3 (de) 2015-04-17 2016-09-08 Takraf Gmbh Brechwalze für einen Brecher
CN107138214B (zh) * 2017-07-18 2019-04-26 湖北神东建设有限公司 一种用于建筑废料的木质板材破碎回收装置
CN107716057B (zh) * 2017-10-14 2020-08-21 佛山海格利德机器人智能设备有限公司 一种全自动智能管道破碎设备
CN108160289B (zh) * 2017-12-25 2019-12-10 山西华正创新技术研究院有限公司 一种建筑垃圾高效破碎装置
CN108465514A (zh) * 2018-05-30 2018-08-31 福建铁拓机械有限公司 一种具有改进齿板连接结构的废旧沥青混合料破碎辊
CN112934343B (zh) * 2021-01-21 2022-05-10 中信重工机械股份有限公司 一种嵌入齿式拱形破碎棒装置
WO2024082030A1 (en) * 2022-10-21 2024-04-25 Prestige Trading Co. Pty Ltd Comminution assembly
CN117105657B (zh) * 2023-09-18 2024-05-07 深圳市华辰新材料科技有限公司 纳米级钛酸镧的低温烧结制备方法及设备

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103127980A (zh) * 2011-11-23 2013-06-05 新乡市高服筛分机械有限公司 一种破碎机齿辊
CN103372477A (zh) * 2012-11-23 2013-10-30 无锡众望四维科技有限公司 破碎辊

Also Published As

Publication number Publication date
DE3371966D1 (de) 1987-07-16
EP0110665A3 (en) 1985-09-11
EP0110665A2 (de) 1984-06-13

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