EP0649680A1 - Rotor for drum chopper respectively shredder - Google Patents

Rotor for drum chopper respectively shredder Download PDF

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Publication number
EP0649680A1
EP0649680A1 EP94116706A EP94116706A EP0649680A1 EP 0649680 A1 EP0649680 A1 EP 0649680A1 EP 94116706 A EP94116706 A EP 94116706A EP 94116706 A EP94116706 A EP 94116706A EP 0649680 A1 EP0649680 A1 EP 0649680A1
Authority
EP
European Patent Office
Prior art keywords
rotor
rotor according
cutter
guide tubes
cutter bars
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Withdrawn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
EP94116706A
Other languages
German (de)
French (fr)
Inventor
Oskar Dipl.-Ing. Blöchlinger
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.)
H Blochlinger AG
H BLOECHLINGER AG
Original Assignee
H Blochlinger AG
H BLOECHLINGER 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 H Blochlinger AG, H BLOECHLINGER AG filed Critical H Blochlinger AG
Publication of EP0649680A1 publication Critical patent/EP0649680A1/en
Withdrawn legal-status Critical Current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
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C18/186—Axially elongated knives

Definitions

  • the present invention relates to a rotor for drum chippers, respectively. Shredder, with radially protruding knife bars that extend over the entire length of the tube.
  • Drum chippers are suitable for processing plants for waste wood from demolition and land consolidation for recycling of residues.
  • Shredders of the aforementioned type are essential.
  • the object of the present invention is thus a rotor for drum chippers respectively.
  • locking means act on the cutter bar inserted in the guide tubes to prevent radial movement of the cutter bar.
  • each cutter bar is supported over its entire longitudinal extent near its cut edge and - on the back in the circumferential direction - by an iron profile.
  • the wear on the cutter bars can be reduced if the cutter bars are each composed of three flat steel profiles.
  • the middle flat steel profile can then protrude radially from its neighboring profiles, which means that after partial wear in the direction of rotation, the cutter bars are simply turned over and can thus be used fully effectively.
  • a processing plant mentioned above is shown schematically, with a drum chipper, respectively.
  • Shredder 20 which cooperates with an inlet trough 22 for the material feed and a conveyor 21 for fractionating the chips.
  • Shredder 20 feed rollers 23, which feed the material to the rotor 2, which rotates in a shredding chamber 2 '.
  • such a rotor 2 has a cross-sectional shape that deviates from the circle, in order to form blade spaces which discharge the comminuted material, one blade space in each case in the circumferential direction in front of a radially protruding knife bar 1 which extends over the entire rotor length.
  • the rotor 2 has an essentially square cross-section, the cutter bars 1 extending in the corners of the rotor 2.
  • the rotor 2 is expediently constructed in a cellular manner from iron plates and is supported radially on the circumference on the shaft 7 (not shown in more detail).
  • guide tubes 3 which are slotted on the rotor and which are longitudinally slotted on the circumferential side of the rotor 2 and which each serve to accommodate a cutter bar 1.
  • locking means on the cutter bars 1 inserted in the guide tubes prevent their radial movement.
  • these locking means can be transverse pins or screws 4 or, according to FIG. 3, longitudinal locking bars 5 can be used.
  • cutter bars could be bead-shaped at their inner end and sit in a form-fitting manner in the guide tube.
  • the cutter bars can then be inserted axially or radially into the guide tubes.
  • each cutter bar 1 is supported near its cut edge and - in the circumferential direction on the back - by an iron profile 6 over its entire longitudinal extent.
  • Each cutter bar 1 is composed of three flat steel profiles, wherein, as explained above, the central flat steel profile 1 '(FIG. 3) preferably projects radially beyond its adjacent profiles.
  • the rotor 2 has a polygonal, here hexagonal cross section.
  • the indicated cutter bar 1 ' is here also composed of three flat steel profiles, with the locking bars 5' being integrally formed here. This sandwich version is particularly suitable for green material.
  • the other cutter bar 1 '' is composed of two flat steel profiles with a nose 8, which cutter bar 1 '' is particularly suitable for processing waste wood.
  • the cutter bars can consist of shorter profiles and sit directly next to one another or on a gap in the guide tubes.
  • the cutter bars can also be used with a pre-cut angle in the circumferential direction (not shown). Protection is claimed as follows:

Abstract

The rotor (2) for a drum chopper respectively shredder (20), with radially projecting cutter bars (1) extending over the entire length of the rotor, is characterised by guide pipes (3) which serve for the in each case insertable reception of a cutter bar (1), are longitudinally slotted on the circumference of the rotor (2) and are welded on the rotor. As a result of these measures, rapid exchange of the cutter bars is possible. <IMAGE>

Description

Die vorliegende Erfindung betrifft einen Rotor für Trommelhacker resp. Shredder, mit radial abragenden, sich über die ganze Rohrlänge erstreckenden Messerbalken.The present invention relates to a rotor for drum chippers, respectively. Shredder, with radially protruding knife bars that extend over the entire length of the tube.

Für Aufbereitungsanlagen von Althölzer aus Abriss und Flurbereinigung für ein Reststoff-Recycling sind Trommelhacker resp. Shredder der vorgenannten Art unerlässlich.Drum chippers, respectively, are suitable for processing plants for waste wood from demolition and land consolidation for recycling of residues. Shredders of the aforementioned type are essential.

Wesentliches Problem bei solchen Zerkleinerungsmaschinen ist die Möglichkeit, die einem hohen Verschleiss unterworfenen Messerbalken rasch auswechseln zu können, um die Stillstandszeiten der Maschinen zu verringern.A major problem with such shredding machines is the possibility of being able to quickly replace the cutter bars, which are subject to high wear, in order to reduce the downtimes of the machines.

Hierfür sind die bisher üblichen Verschraubungstechniken wenig geeignet.The previously used screwing techniques are not very suitable for this.

Aufgabe der vorliegenden Erfindung ist somit, einen Rotor für Trommelhacker resp. Shredder der vorgenannten Art zu schaffen, der ein unkompliziertes und rasches Auswechseln der Messerbalken gestattet, wobei zudem Massnahmen zu treffen sind, die die Abnützung der Messerbalken reduzieren.The object of the present invention is thus a rotor for drum chippers respectively. To create shredder of the aforementioned type, which allows an uncomplicated and quick replacement of the cutter bars, whereby measures must also be taken to reduce wear on the cutter bars.

Das unkomplizierte und rasche Auswechseln der Messerbalken wird nun erfindungsgemäss erreicht durch, der jeweils einsetzbaren Aufnahme eines Messerbalkens dienende, umfangseitig des Rotors längsgeschlitzte, am Rotor verschweisste Führungsrohre.The uncomplicated and rapid replacement of the cutter bars is now achieved according to the invention by guide tubes which are slotted on the circumference of the rotor and which are longitudinally slotted on the rotor and serve to accommodate a cutter bar which can be used in each case.

Hierbei ist es zweckmässig, wenn an den, in den Führungsrohren eingesetzten Messerbalken Verriegelungsmittel zur Verhinderung einer radialen Bewegung der Messerbalken angreifen.It is expedient here if locking means act on the cutter bar inserted in the guide tubes to prevent radial movement of the cutter bar.

Ferner ist es vorteilhaft, wenn jeder Messerbalken nahe seiner Schnittkante und - in Umlaufrichtung rückseitig - durch ein Eisenprofil über seine ganze Längserstreckung abgestützt ist.Furthermore, it is advantageous if each cutter bar is supported over its entire longitudinal extent near its cut edge and - on the back in the circumferential direction - by an iron profile.

Die Abnützung der Messerbalken lässt sich dabei dadurch reduzieren, wenn die Messerbalken je aus drei Flachstahlprofilen zusammengesetzt sind.The wear on the cutter bars can be reduced if the cutter bars are each composed of three flat steel profiles.

Hierbei kann dann das mittlere Flachstahlprofil seine benachbarten Profile radial überragen, wodurch nach einer Teilabnützung in Umlaufrichtung die Messerbalken einfach umgeschlagen werden und sich so vollwirksam weiterverwenden lassen.The middle flat steel profile can then protrude radially from its neighboring profiles, which means that after partial wear in the direction of rotation, the cutter bars are simply turned over and can thus be used fully effectively.

Beispielsweise Ausführungsformen des Erfindungsgegenstandes sind nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
in schematischer, schaubildartiger Darstellung eine Aufbereitungsanlage von Altholz u.dgl. mit einem Trommelhacker resp. Shredder;
Fig. 2
einen Querschnitt durch den erfindungsgemässen Rotor für den Trommelhacker resp. Shredder in Fig. 1;
Fig. 3
in schaubildartiger Teilansicht eine Ausführungsvariante des erfindungsgemässen Rotors; und
Fig. 4
im Querschnitt eine Ausführungsvariante gemäss Fig. 2.
For example, embodiments of the subject matter of the invention are explained in more detail below with reference to the drawing. Show it:
Fig. 1
in a schematic, diagram-like representation of a processing plant of waste wood and the like. with a drum chipper resp. Shredder;
Fig. 2
a cross section through the rotor according to the invention for the drum chipper, respectively. Shredder in Fig. 1;
Fig. 3
a diagrammatic partial view of an embodiment variant of the rotor according to the invention; and
Fig. 4
in cross section an embodiment variant according to FIG. 2.

In Fig. 1 ist eine vorstehend erwähnte Aufbereitungsanlage schematisch dargestellt, mit einem Trommelhacker resp. Shredder 20, welcher mit einer Einlaufwanne 22 für die Materialaufgabe und einem Förderer 21 zur Fraktionierung des Spangutes zusammenwirkt.In Fig. 1, a processing plant mentioned above is shown schematically, with a drum chipper, respectively. Shredder 20, which cooperates with an inlet trough 22 for the material feed and a conveyor 21 for fractionating the chips.

In bekannter Weise umfasst ein solcher Trommelhacker resp. Shredder 20 Einzugswalzen 23, welche das aufgegebene Material zum Rotor 2 führen, der in einer Zerkleinerungskammer 2' umläuft.In a known manner, such a drum chipper, respectively. Shredder 20 feed rollers 23, which feed the material to the rotor 2, which rotates in a shredding chamber 2 '.

Ueblicherweise hat ein solcher Rotor 2 im Querschnitt eine vom Kreis abweichende Form, um Schaufelräume zu bilden, die das zerkleinerte Gut austragen, wobei sich jeweils ein Schaufelraum in Umlaufrichtung vor einem radial abragenden, sich über die ganze Rotorlänge erstreckenden Messerbalken 1 befindet.Typically, such a rotor 2 has a cross-sectional shape that deviates from the circle, in order to form blade spaces which discharge the comminuted material, one blade space in each case in the circumferential direction in front of a radially protruding knife bar 1 which extends over the entire rotor length.

Gemäss Fig. 2 hat hier der Rotor 2 einen im wesentlichen quadratischen Querschnitt, wobei sich die Messerbalken 1 in den Ecken des Rotors 2 erstrecken.According to FIG. 2, the rotor 2 has an essentially square cross-section, the cutter bars 1 extending in the corners of the rotor 2.

Der Rotor 2 ist zweckmässig aus Eisenplatten zellenförmig aufgebaut und umfänglich an der Welle 7 radial abgestützt (nicht näher gezeigt).The rotor 2 is expediently constructed in a cellular manner from iron plates and is supported radially on the circumference on the shaft 7 (not shown in more detail).

Erfindungswesentlich sind nun, der jeweils einsetzbaren Aufnahme eines Messerbalkens 1 dienende, umfangseitig des Rotors 2 längsgeschlitzte, am Rotor verschweisste Führungsrohre 3.Essential to the invention are guide tubes 3 which are slotted on the rotor and which are longitudinally slotted on the circumferential side of the rotor 2 and which each serve to accommodate a cutter bar 1.

Hierbei verhindern Verriegelungsmittel an den in den Führungsrohren eingesetzte Messerbalken 1 deren radiale Bewegung.Here, locking means on the cutter bars 1 inserted in the guide tubes prevent their radial movement.

Gemäss Fig. 2 können diese Verriegelungsmittel Querstifte oder -schrauben 4 sein oder es können gemäss Fig. 3 längsverlaufende Verriegelungsstäbe 5 eingesetzt sein.According to FIG. 2, these locking means can be transverse pins or screws 4 or, according to FIG. 3, longitudinal locking bars 5 can be used.

Ebenso könnten die Messerbalken an ihrem inneren Ende wulstförmig ausgebildet sein und etwa formschlüssig im Führungsrohr einsitzen.Likewise, the cutter bars could be bead-shaped at their inner end and sit in a form-fitting manner in the guide tube.

Je nach Bauart können dann die Messerbalken axial oder radial in die Führungsrohre eingebracht werden.Depending on the design, the cutter bars can then be inserted axially or radially into the guide tubes.

Wie Fig. 2 und 3 mehr im Einzelnen zeigen, ist jeder Messerbalken 1 nahe seiner Schnittkante und - in Umlaufrichtung rückseitig - durch ein Eisenprofil 6 über seine ganze Längserstreckung abgestützt.As shown in FIGS. 2 and 3 in more detail, each cutter bar 1 is supported near its cut edge and - in the circumferential direction on the back - by an iron profile 6 over its entire longitudinal extent.

Jeder Messerbalken 1 ist aus drei Flachstahlprofilen zusammengesetzt, wobei, wie vorstehend erläutert, vorzugsweise das mittlere Flachstahlprofil 1' (Fig. 3) seine benachbarten Profile radial überragt.Each cutter bar 1 is composed of three flat steel profiles, wherein, as explained above, the central flat steel profile 1 '(FIG. 3) preferably projects radially beyond its adjacent profiles.

Bei der in Fig. 4 gezeigten Ausführungsvariante ist der Rotor 2 von polygonalem, hier sechseckigen Querschnitt. Der angedeutete Messerbalken 1' ist auch hier aus drei Flachstahlprofilen zusammengesetzt, wobei hier die Verriegelungsstäbe direkt angeformt 5' sind. Diese Sandwichausführung eignet sich besonders für Grünmaterial.In the embodiment variant shown in FIG. 4, the rotor 2 has a polygonal, here hexagonal cross section. The indicated cutter bar 1 'is here also composed of three flat steel profiles, with the locking bars 5' being integrally formed here. This sandwich version is particularly suitable for green material.

Hingegen ist der andere Messerbalken 1'' aus zwei Flachstahlprofilen zusammengesetzt mit einer Nase 8, welcher Messerbalken 1'' sich insbesondere für das Aufbereiten von Altholz eignet.On the other hand, the other cutter bar 1 '' is composed of two flat steel profiles with a nose 8, which cutter bar 1 '' is particularly suitable for processing waste wood.

Aus dem Vorbeschriebenen ergibt sich so eine optimale Ausgestaltung des Rotors.An optimal configuration of the rotor results from the above.

Hierbei sind im Rahmen der Erfindung durchaus konstruktive Varianten denkbar. Insbesondere können die Messerbalken aus kürzeren Profilen bestehen und direkt nebeneinander oder auf Lücke in den Führungsrohren einsitzen. Ferner können die Messerbalken auch mit einem Vorschnittwinkel in Umlaufrichtung eingesetzt sein (nicht gezeigt).
Es wird Schutz beansprucht wie folgt:Here, constructive variants are conceivable within the scope of the invention. In particular, the cutter bars can consist of shorter profiles and sit directly next to one another or on a gap in the guide tubes. Furthermore, the cutter bars can also be used with a pre-cut angle in the circumferential direction (not shown).
Protection is claimed as follows:

Claims (8)

Rotor für Trommelhacker resp. Shredder, mit radial abragenden, sich über die ganze Rotorlänge erstreckenden Messerbalken, gekennzeichnet durch, der jeweils einsetzbaren Aufnahme eines Messerbalkens (1) dienende, umfangseitig des Rotors (2) längsgeschlitzte, am Rotor verschweisste Führungsrohre (3).Rotor for drum chipper resp. Shredder, with radially protruding knife bars extending over the entire rotor length, characterized by guide tubes (3) which are longitudinally slotted on the rotor and serve to accommodate the insertable knife bar (1) on the circumference of the rotor (2). Rotor nach Anspruch 1, dadurch gekennzeichnet, dass an den, in den Führungsrohren (3) eingesetzten Messerbalken (1) Verriegelungsmittel (4 oder 5) zur Verhinderung einer radialen Bewegung der Messerbalken angreifen.Rotor according to claim 1, characterized in that locking means (4 or 5) act on the cutter bars (1) inserted in the guide tubes (3) to prevent radial movement of the cutter bars. Rotor nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass jeder Messerbalken (1) nahe seiner Schnittkante und - in Umlaufrichtung rückseitig - durch ein Eisenprofil (6) über seine ganze Längserstreckung abgestützt ist.Rotor according to claim 1 or 2, characterized in that each cutter bar (1) near its cut edge and - in the circumferential direction on the back - is supported by an iron profile (6) over its entire longitudinal extent. Rotor nach den Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, dass die Messerbalken (1) je aus drei Flachstahlprofilen zusammengesetzt sind.Rotor according to claims 1, 2 or 3, characterized in that the cutter bars (1) are each composed of three flat steel profiles. Rotor nach Anspruch 4, dadurch gekennzeichnet, dass das mittlere Flachstahlprofil (1') seine benachbarten Profile radial überragt.Rotor according to claim 4, characterized in that the central flat steel profile (1 ') projects radially beyond its adjacent profiles. Rotor nach Anspruch 1, gekennzeichnet durch einen im wesentlichen quadratischen Querschnitt, wobei sich die Führungsrohre (3) in den Ecken des Rotors (2) erstrecken.Rotor according to claim 1, characterized by an essentially square cross section, the guide tubes (3) extending in the corners of the rotor (2). Rotor nach den Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, dass die Messerbalken (1) je aus zwei Flachstahlprofilen zusammengesetzt sind.Rotor according to claims 1, 2 or 3, characterized in that the cutter bars (1) are each composed of two flat steel profiles. Rotor nach Anspruch 1, gekennzeichnet durch einen im wesentlichen polygonalen, vorzugsweise sechseckigen Querschnitt, wobei sich die Führungsrohre (3) in den Ecken des Rotors (2) erstrecken.Rotor according to claim 1, characterized by an essentially polygonal, preferably hexagonal cross section, the guide tubes (3) extending in the corners of the rotor (2).
EP94116706A 1993-10-26 1994-10-22 Rotor for drum chopper respectively shredder Withdrawn EP0649680A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH321993A CH689221A5 (en) 1993-10-26 1993-10-26 Rotor for shredders.
CH3219/93 1993-10-26

Publications (1)

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EP0649680A1 true EP0649680A1 (en) 1995-04-26

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EP94116706A Withdrawn EP0649680A1 (en) 1993-10-26 1994-10-22 Rotor for drum chopper respectively shredder

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CH (1) CH689221A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112354629A (en) * 2020-10-21 2021-02-12 青岛即墨中联水泥有限公司 Assembling device and method for scattering disk device of powder concentrator
EP3789119A1 (en) * 2019-09-04 2021-03-10 Johannes Wissing Hollow rotor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE821589C (en) * 1950-03-17 1951-11-19 Westfalia Dinnendahl Groeppel Rotor for centrifugal mills
DE1043764B (en) * 1955-10-13 1958-11-13 Esch Werke Kg Rotor with blow bars for impact mills
EP0144096A1 (en) * 1983-09-07 1985-06-12 Autobedrijf de Beemd B.V. Device for chipping wood-like material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE821589C (en) * 1950-03-17 1951-11-19 Westfalia Dinnendahl Groeppel Rotor for centrifugal mills
DE1043764B (en) * 1955-10-13 1958-11-13 Esch Werke Kg Rotor with blow bars for impact mills
EP0144096A1 (en) * 1983-09-07 1985-06-12 Autobedrijf de Beemd B.V. Device for chipping wood-like material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3789119A1 (en) * 2019-09-04 2021-03-10 Johannes Wissing Hollow rotor
CN112354629A (en) * 2020-10-21 2021-02-12 青岛即墨中联水泥有限公司 Assembling device and method for scattering disk device of powder concentrator
CN112354629B (en) * 2020-10-21 2022-03-18 青岛即墨中联水泥有限公司 Assembling device and method for scattering disk device of powder concentrator
CN114248088A (en) * 2020-10-21 2022-03-29 青岛即墨中联水泥有限公司 Assembly for assembling scattering disk device of powder concentrator, assembling device and process
CN114248088B (en) * 2020-10-21 2023-08-01 青岛即墨中联水泥有限公司 Component for assembling powder concentrator scattering disc device, assembling device and process

Also Published As

Publication number Publication date
CH689221A5 (en) 1998-12-31

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