EP1680227B1 - Cutting tool for comminuting devices - Google Patents

Cutting tool for comminuting devices Download PDF

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Publication number
EP1680227B1
EP1680227B1 EP04797697A EP04797697A EP1680227B1 EP 1680227 B1 EP1680227 B1 EP 1680227B1 EP 04797697 A EP04797697 A EP 04797697A EP 04797697 A EP04797697 A EP 04797697A EP 1680227 B1 EP1680227 B1 EP 1680227B1
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EP
European Patent Office
Prior art keywords
cutting
tooth
fastening
rotor
tool according
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EP04797697A
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German (de)
French (fr)
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EP1680227A1 (en
Inventor
Johann Doppstadt
Horst Berger
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Individual
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Priority claimed from DE202004002094U external-priority patent/DE202004002094U1/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
    • 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
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers

Definitions

  • the invention relates to a cutting tool for a comminution device or comminution system, in particular for high-speed devices or installations.
  • Such cutting tools for crushing devices and plants are known.
  • the devices in which the cutting tools are used run at a revolution of about 1000 revolutions per minute.
  • the cutting tools are located on a drum or a rotor and cooperate with counter cutting, which are located in the device itself.
  • the counter-cutting edges can also be arranged or formed on baskets of the comminuting device.
  • the cutting tools consist of a usually one-piece base body, for example a flail, which can be fastened on a rotor and which has a cutting body provided with a rectilinear cutting edge or a cutting edge.
  • a cutting shoe which has a sawtooth-like configuration of the cutting surface.
  • the object of the invention is to provide a cutting tool for a comminution device which has a higher efficiency, in particular due to longer service lives of the cutting tool, than the solutions known from the prior art and which can be produced, replaced or exchanged with less effort ,
  • the invention is based on the prior art described above and proposes a cutting tool for a comminution device, in particular for Schnull securedde devices or installations with at least one drum or a rotor and at least one counter tool, such as shredders or the like before, consisting of an incisor, which is placed on the rotor or on the drum of a crushing device and which is formed at its direction in the cutting direction side as a cutting body with a plurality of cutting edges, the cutting body is provided in the cutting direction with V-shaped recesses and the recesses forming the cutting edges (2), wherein a fastening body is provided, which is fastened on a shaft formed as a rotor of the waste crusher and which carries the cutting tooth, and the cutting tool is characterized in that the cutting tooth ve also with V-shaped recesses which corresponds to the shape of the cutting body.
  • the large number of cutting edges initially ensures less wear and, in particular, a significantly higher efficiency of the cutting surfaces combined with a longer service life of the cutting tool itself. This has a very positive effect on the production, maintenance and servicing costs.
  • the V-shaped design ensures a high efficiency of the cutting or cutting and a high stability of the cutting surfaces.
  • the teeth of a cutting shoe known from the prior art are arranged in the installed position transversely to the cutting direction.
  • the attachment to the roll body with a variety of screw is necessary.
  • the formation of the teeth transversely to the cutting direction leads to high wear and is only suitable for a limited number of crushing tasks.
  • the cutting edges of the cutting body according to the invention in the longitudinal direction ie oriented in the direction of rotation, whereby the effectiveness and durability is increased.
  • the inventive design also allows a less time-consuming change. It is only a releasably fixed connection per cutting tool necessary.
  • the cutting tool according to the invention is characterized by the possibility of forming a free cutting.
  • the cutting tool according to the invention is characterized in that the cutting tooth carries a plurality of cutting edges.
  • This embodiment offers the advantage that individual cutting edges can be replaced when worn. This more than compensated if necessary in the production slightly higher effort compared to the solution described above. In particular, differently worn blades can be replaced at different intervals or cycles as required.
  • the invention is therefore characterized in that the cutting tooth comprises a cutting body having the cutting edges. It is advantageous that the entire separating body can be changed in the event of wear. This shortens the change of the tool. It is of course also given that thereby the possibility of re-sharpening or regrinding is now given.
  • the cutting body is formed from tool steel, in particular hardened tool steel.
  • This represents a substantially cost-effective variant, which is used, for example, in comminution tasks for materials that are not so strong or hard.
  • An advantageous development of the invention is characterized in that the cutting body is formed from hard metal.
  • Another aspect of the invention is characterized in that the cutting body is releasably / firmly, in particular interchangeable attached to the cutting tooth.
  • This embodiment makes it possible to use wearing parts. The effort to replace the cutting body and its change is usually less than the cost of replacing the entire body.
  • a further advantageous embodiment is characterized in that the cutting body is attached to the cutting tooth by means of a brazed joint.
  • a development of the invention provides that the cutting tooth is also provided with V-shaped recesses which follow the V-shape of the cutting body corresponding. This achieves a further increase in the service life of the cutting edges as well as an improvement in the cutting or comminution result.
  • the cutting tooth is formed according to an embodiment of the invention as a truncated pyramid. This ensures that the entire tooth is wear-resistant and in particular minimizes the frictional resistance during the cutting or comminution process.
  • the invention also proposes a fastening body which can be fastened on the rotor of the waste crushing plant and which carries the cutting tooth.
  • This is a very maintenance-friendly embodiment specified that allows a quick change for repairs or conversions. It is also advantageous if at least one holder is provided on the drum or on the rotor of the comminution device, on which the fastening body or the entire cutting tool is attached.
  • the one or more holders can also be arranged detachably on or on the drum or the rotor.
  • the fastening body can be placed on a rotor designed as a shaft.
  • the fastening body can also be designed as a holder
  • fastening body is mounted swinging on the shaft. This prevents blockages and at the same time increases the cutting performance.
  • the fastening body is arranged in the cutting direction behind the cutting tooth.
  • the cutting tooth is angled in an advantageous development of the invention with respect to the fastening body or formed bendable.
  • the cutting tooth is detachably arranged on the fastening body.
  • the cutting tool according to the invention is also characterized in that the fastening body has at least one fastening means, by means of which the attachment to the drum or the rotor takes place.
  • the fastening body has at least one bore, which receives the one or more fastening means.
  • the fastening body on the side facing the rotor has at least one locking nose, which interact with existing on the rotor, the drum or on the holder grooves for adjustment.
  • the invention also relates to a crushing device with a cutting tool according to one or more of the above-described embodiments of the cutting tool.
  • the Fig. 1 shows a three-dimensional representation of the cutting tool according to the invention.
  • the reference numeral 1 denotes the cutting tooth.
  • the cutting tooth 1 is formed in the embodiment shown truncated pyramid.
  • a cutting body 2/1 is arranged which carries the cutting edges 2 or on which they are formed.
  • FIG. 1 shows cutting body and Scheid leopard are provided with V-shaped recesses, recesses or the like, wherein the lying in the cutting direction A edges of the cutting body 2/1 form the cutting.
  • the cutting tooth is also provided with these V-shaped recesses or cutouts. These follow the shape of the recesses on the cutting body 2/1 or correspond to these.
  • the recesses or cutouts with respect to the Cutting body 2/1 angled, so that a free cut is given. Which is particularly good from the Fig. 4 seen.
  • the cutting tooth 1 is connected to a mounting body 3, by means of which the cutting tool is fastened on the rotor, not shown, or on the drum of the comminution device.
  • the fastening body 3 is arranged in the cutting direction A behind the cutting tooth 1, narrower than this formed and angled relative to the cutting tooth 1. He is according to the illustrated advantageous embodiment of the invention narrower and flatter than the cutting tooth 1.
  • the mounting body 3 is arranged according to the illustration shown releasably on the cutting tooth 1. Varteilhaft note he is divided in two parts in shell 3/1 and lower part 3/2, which receive the cutting tooth like a pincers. By the pincer-like design, it is for example given that the cutting tooth 1 is angled or angled with respect to the mounting body 3.
  • This training also contributes, for example, that shocks or blows during the crushing process better, namely resiliently intercepted.
  • two locking lugs 5 are provided in the figure shown, which serve to lock and / or centering of the entire cutting tool on the rotor or on the drum or to corresponding holders, not shown.
  • a bore 4 is provided in the fastening body 3.
  • Fig. 2 time a rotated by 180 ° representation of Fig. 1 ,
  • the reference numerals have been used in the description of Fig. 1 are used in the same way, so that can be dispensed with a new idea.

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

Description

Die Erfindung betrifft ein Schneidwerkzeug für eine Zerkleinerungsvorrichtung bzw. Zerkleinerungsanlage, insbesondere für schnelllaufende Vorrichtungen bzw. Anlagen.The invention relates to a cutting tool for a comminution device or comminution system, in particular for high-speed devices or installations.

Derartige Schneidwerkzeuge für Zerkleinerungsvorrichtungen und -anlagen sind bekannt. Die Vorrichtungen, in welchen die Schneidwerkzeuge zum Einsatz kommen, laufen mit einer Umdrehung von ca. 1000 Umdrehungen pro Minute. Die Schneidwerkzeuge befinden sich auf einer Trommel bzw. einem Rotor und wirken mit Gegenschneiden zusammen, die sich in der Vorrichtung selbst befinden. Die Gegenschneiden können auch an Körben der Zerkleinerungsvorrichtung angeordnet bzw. ausgebildet sein. Die Schneidwerkzeuge bestehen aus einem meist einteiligen Grundkörper, zum Beispiel einem Schlegel, der auf einem Rotor befestigbar ist und der eine mit einer geradlinigen Schneidkante versehenen Schneidkörper bzw. eine Schneide aufweist. Diese werden aufgrund der geradlinigen Ausbildung der Schneidkante sehr schnell stumpf bzw. verschleißen aufgrund der relativ hohen Geschwindigkeit der Drehbewegung des Rotors und der Beschaffenheit des zu zerkleinernden Materials sehr schnell, so dass innerhalb von sehr kurzen Zyklen die Schneidwerkzeuge gewechselt werden müssen. Dies geschieht in der Regel aus Zeitgründen durch das Wechseln des gesamten Grundkörpers. Dieser ist aus Rentabilitätsgründen ebenfalls insgesamt als Verschleißteil ausgebildet, so dass ein recht hoher Wartungs- bzw. Unterhaltungsaufwand gegeben ist.Such cutting tools for crushing devices and plants are known. The devices in which the cutting tools are used, run at a revolution of about 1000 revolutions per minute. The cutting tools are located on a drum or a rotor and cooperate with counter cutting, which are located in the device itself. The counter-cutting edges can also be arranged or formed on baskets of the comminuting device. The cutting tools consist of a usually one-piece base body, for example a flail, which can be fastened on a rotor and which has a cutting body provided with a rectilinear cutting edge or a cutting edge. Due to the relatively high speed of the rotational movement of the rotor and the nature of the material to be shredded, these become very quickly dull due to the straight-line design of the cutting edge, so that the cutting tools have to be exchanged within very short cycles. This is usually done for reasons of time by changing the entire body. This is also designed for reasons of profitability as a whole as a wearing part, so that a fairly high maintenance and entertainment costs is given.

Aus dem Stand der Technik ist auch ein Schneidschuh bekannt, der eine sägezahnähnliche Ausgestaltung der Schneidfläche aufweist.From the prior art, a cutting shoe is known, which has a sawtooth-like configuration of the cutting surface.

Aus der Druckschrift G 93 05 835.7 U1 ist ein Schneidkörper bekannt, der als Schlegel ausgebildet ist und der einen Verschleißkörper aufweist, der aus mehreren nebeneinander angeordneten Teilkörpern besteht. Der Wirkungsgrad der Zerkleinerungsleistung und die Standzeiten sind für derzeitige Anforderungen nicht ausreichend.From the document G 93 05 835.7 U1 a cutting body is known, which is designed as a flail and which has a wear body, which consists of several juxtaposed part bodies. The efficiency of the crushing performance and the service life are not sufficient for current requirements.

Aufgabe der Erfindung ist es, ein Schneidwerkzeug für eine Zerkleinerungsvorrichtung zur Verfügung zu stellen, die einen höheren Wirkungsgrad , insbesondere durch höhere Standzeiten des Schneidwerkzeugs aufweist, als die aus dem Stand der Technik bekannten Lösungen und die mit geringerem Aufwand herstellbar, ersetzbar bzw. austauschbar ist.The object of the invention is to provide a cutting tool for a comminution device which has a higher efficiency, in particular due to longer service lives of the cutting tool, than the solutions known from the prior art and which can be produced, replaced or exchanged with less effort ,

Die Erfindung geht von dem zuvor beschriebenen Stand der Technik aus und schlägt ein Schneidwerkzeug für eine Zerkleinerungsvorrichtung bzw. Zerkleinerungsanlage, insbesondere für schnefllaufende Vorrichtungen bzw. Anlagen mit wenigstens einer Trommel bzw. einem Rotor und wenigstens einem Gegenwerkzeug, wie Schredder oder dergleichen vor, bestehend aus einem Schneidezahn, der auf den Rotor bzw. auf die Trommel einer Zerkleinerungs-Vorrichtung aufsetzbar ist und der an seiner in Schneidrichtung gerichteten Seite als Schneidkörper mit einer Vielzahl von Schneiden ausgebildet ist, der Schneidkörper in Schneidrichtung mit V-förmigen Ausfräsungen versehen ist und die Ausfräsungen die Schneiden (2) bilden, wobei ein Befestigungskörper vorgesehen ist, der auf einem als Welle ausgebildeten Rotor der Abfallzerkleinerungsanlage befestigbar ist und der den Schneidzahn trägt, und das Schneidwerkzeug sich dadurch auszeichnet, dass der Schneidzahn ebenfalls mit V-förmigen Ausfräsungen versehen ist, die der Form des Schneidkörpers korrespondierend folgen. Die Vielzahl von Schneiden gewährleistet zunächst einen geringeren Verschleiß und insbesondere eine wesentlich höhere Wirksamkeit der Schneidflächen verbunden mit einer höheren Standdauer des Schneidwerkzeugs selbst. Damit wird der Herstellungs-, Unterhaltungs- und Wartungsaufwand äußerst positiv beeinflusst. Die V-förmige Ausbildung gewährleistet einen hohen Wirkungsgrad des Zerkleinems bzw. Schneidens und eine große Standfähigkeit der Schneidflächen.The invention is based on the prior art described above and proposes a cutting tool for a comminution device, in particular for Schnulllaufende devices or installations with at least one drum or a rotor and at least one counter tool, such as shredders or the like before, consisting of an incisor, which is placed on the rotor or on the drum of a crushing device and which is formed at its direction in the cutting direction side as a cutting body with a plurality of cutting edges, the cutting body is provided in the cutting direction with V-shaped recesses and the recesses forming the cutting edges (2), wherein a fastening body is provided, which is fastened on a shaft formed as a rotor of the waste crusher and which carries the cutting tooth, and the cutting tool is characterized in that the cutting tooth ve also with V-shaped recesses which corresponds to the shape of the cutting body. The large number of cutting edges initially ensures less wear and, in particular, a significantly higher efficiency of the cutting surfaces combined with a longer service life of the cutting tool itself. This has a very positive effect on the production, maintenance and servicing costs. The V-shaped design ensures a high efficiency of the cutting or cutting and a high stability of the cutting surfaces.

Die Zähne eines aus dem Stand der Technik bekannten Schneidschuhs sind in Einbaustellung quer zur Schneidrichtung angeordnet. Zudem ist die Befestigung auf dem Walzenkörper mit einer Vielzahl von Schraubverbindungen notwendig. Die Ausbildung der Zähne quer zur Schneidrichtung führt zu hohem Verschleiß und eignet sich lediglich für eine eingeschränkte Anzahl von Zerkleinerungsaufgaben. Demgegenüber sind die Schneiden des Schneidkörpers nach der Erfindung in Längsrichtung, also in Drehrichtung orientiert, wodurch die Wirksamkeit und die Standdauer erhöht wird. Die erfindungsgemäße Ausgestaltung ermöglicht zudem einen weniger zeitaufwendigen Wechsel. Es ist nur eine lösbar feste Verbindung je Schneidwerkzeug notwendig. Gegenüber einer weiteren aus dem Stand der Technik bekannten Lösung zeichnet sich das erfindungsgemäße Schneiwerkzeug durch die Möglichkeit der Ausbildung eines Freischnitts aus. Die Befestigung auf dem Walzenkörper ist zudem sehr aufwendig und insbesondere bei Wartungsaufgaben mit hohem manuellen Aufwand verbunden. Für die Befestigung des bekannten Zahns ist zudem ein zusätzlicher Zahnträger am Walzenkörper notwendig, wodurch der Fertigungsaufwand sehr hoch ist. Diese Nachteile weist das erfindungsgemäße Schneidwerkzeug nicht auf. Vielmehr führt die erfindungsgemäße Ausgestaltung zur Beseitigung der zuvor beschriebenen Nachteile der Lösungen des Standes der Technik.The teeth of a cutting shoe known from the prior art are arranged in the installed position transversely to the cutting direction. In addition, the attachment to the roll body with a variety of screw is necessary. The formation of the teeth transversely to the cutting direction leads to high wear and is only suitable for a limited number of crushing tasks. In contrast, the cutting edges of the cutting body according to the invention in the longitudinal direction, ie oriented in the direction of rotation, whereby the effectiveness and durability is increased. The inventive design also allows a less time-consuming change. It is only a releasably fixed connection per cutting tool necessary. Compared to another known from the prior art solution, the cutting tool according to the invention is characterized by the possibility of forming a free cutting. The attachment to the roll body is also very expensive and in particular associated with high manual effort during maintenance tasks. For the attachment of the known tooth also an additional tooth carrier on the roller body is necessary, whereby the manufacturing cost is very high. These disadvantages, the cutting tool according to the invention does not have. Rather, the inventive design leads to the elimination of the previously described disadvantages of the solutions of the prior art.

Das erfindungsgemäße Schneidwerkzeugs zeichnet sich dadurch aus, dass der Schneidzahn eine Vielzahl von Schneiden trägt. Diese Ausführungsform bietet den Vorteil, dass einzelne Schneiden bei Verschleiß ersetzbar sind. Damit wird der gegebenenfalls in der Herstellung etwas höhere Aufwand gegenüber der zuvor beschriebenen Lösung mehr als kompensiert. Insbesondere lassen sich unterschiedlich verschlissene Schneiden in unterschiedlichen Intervallen bzw. Zyklen je nach Bedarf auswechseln.The cutting tool according to the invention is characterized in that the cutting tooth carries a plurality of cutting edges. This embodiment offers the advantage that individual cutting edges can be replaced when worn. This more than compensated if necessary in the production slightly higher effort compared to the solution described above. In particular, differently worn blades can be replaced at different intervals or cycles as required.

Die Erfindung ist demnach dadurch gekennzeichnet, dass der Schneidzahn einen Schneidkörper umfasst, der die Schneiden aufweist. Hierbei ist es von Vorteil, dass der gesamte Scheidkörper im Falle des Verschleißes gewechselt werden kann. Dies verkürzt den Wechsel des Werkzeugs. Es ist selbstverständlich auch gegeben, dass dadurch die Möglichkeit des Nachschärfens bzw. Nachschleifens jetzt gegeben ist.The invention is therefore characterized in that the cutting tooth comprises a cutting body having the cutting edges. It is advantageous that the entire separating body can be changed in the event of wear. This shortens the change of the tool. It is of course also given that thereby the possibility of re-sharpening or regrinding is now given.

Erfindungsgemäß wurde gefunden, dass es von Vorteil ist, wenn der Schneidkörper aus Werkzeugstahl, insbesondere gehärtetem Werkzeugstahl gebildet ist. Dies stellt eine im wesentlichen kostengünstige Variante dar, die zum Beispiel bei Zerkleinerungsaufgaben für nicht so feste bzw. harte Materialien zum Einsatz gelangt.According to the invention, it has been found that it is advantageous if the cutting body is formed from tool steel, in particular hardened tool steel. This represents a substantially cost-effective variant, which is used, for example, in comminution tasks for materials that are not so strong or hard.

Eine vorteilhafte Weiterbildung der Erfindung zeichnet sich dadurch aus, dass der Schneidkörper aus Hartmetall gebildet ist.An advantageous development of the invention is characterized in that the cutting body is formed from hard metal.

Ein weiterer Aspekt der Erfindung ist dadurch angegeben, dass der Schneidkörper lösbar/fest, insbesondere auswechselbar an dem Schneidzahn befestigt ist. Diese Ausführungsform ermöglicht es, Verschleißteile einzusetzen. Der Aufwand zum Ersatz der Schneidkörper und deren Wechsel ist regelmäßig geringer als der Aufwand für den Ersatz des gesamten Grundkörpers.Another aspect of the invention is characterized in that the cutting body is releasably / firmly, in particular interchangeable attached to the cutting tooth. This embodiment makes it possible to use wearing parts. The effort to replace the cutting body and its change is usually less than the cost of replacing the entire body.

Demnach ist eine weitere vorteilhafte Ausbildung dadurch angegeben, dass der Schneidkörper an dem Schneidzahn mittels einer Hartlötverbindung befestigt ist. Hierdurch ist ein schneller und problemloser Wechsel des bzw. der Schneidkörper möglich.Accordingly, a further advantageous embodiment is characterized in that the cutting body is attached to the cutting tooth by means of a brazed joint. As a result, a quick and easy change of or the cutting body is possible.

Eine Weiterbildung der Erfindung sieht vor, dass der Schneidzahn ebenfalls mit V-förmigen Ausnehmungen versehen ist, die der V-Form des Schneidkörpers korrespondierend folgen. Damit wird eine weitere Erhöhung der Standdauer der Schneiden sowie eine Verbesserung des Schneid- bzw. Zerkleinerungsergebnisses erreicht.A development of the invention provides that the cutting tooth is also provided with V-shaped recesses which follow the V-shape of the cutting body corresponding. This achieves a further increase in the service life of the cutting edges as well as an improvement in the cutting or comminution result.

Erfindungsgemäß wurde auch gefunden, dass es von Vorteil ist, wenn der Schneidzahn einen Freischnitt aufweist. Auch dies führt zu einer Verbesserung des Schneid- bzw. Zerkleinerungsergebnisses.According to the invention, it has also been found that it is advantageous if the cutting tooth has a free cut. This also leads to an improvement of the cutting or crushing result.

Der Schneidzahn ist entsprechend einer Ausführungsform der Erfindung als Pyramidenstumpf ausgebildet. Damit wird erreicht, das der gesamte Zahn verschleißärmer ist und insbesondere der Reibungswiderstand während des Schneid- bzw. Zerkleinerungsvorganges minimiert.The cutting tooth is formed according to an embodiment of the invention as a truncated pyramid. This ensures that the entire tooth is wear-resistant and in particular minimizes the frictional resistance during the cutting or comminution process.

Die Erfindung schlägt auch einen Befestigungskörper vor, der auf dem Rotor der Abfallzerkleinerungsanlage befestigbar ist und der den Schneidzahn trägt. Damit ist eine sehr wartungsfreundliche Ausführungsform angegeben, die einen schnellen Wechsel für Reparaturen bzw. Umrüstungen ermöglicht. Dabei ist es auch von Vorteil, wenn wenigstens ein Halter auf der Trommel bzw. auf dem Rotor der Zerkleinerungsvorrichtung vorgesehen ist, auf dem der Befestigungskörper bzw. das gesamte Schneidwerkzeug befestigt ist. Der oder die Halter können dabei ebenfalls lösbar an bzw. auf der Trommel bzw. dem Rotor angeordnet sein.The invention also proposes a fastening body which can be fastened on the rotor of the waste crushing plant and which carries the cutting tooth. This is a very maintenance-friendly embodiment specified that allows a quick change for repairs or conversions. It is also advantageous if at least one holder is provided on the drum or on the rotor of the comminution device, on which the fastening body or the entire cutting tool is attached. The one or more holders can also be arranged detachably on or on the drum or the rotor.

Es ist erfindungsgemäß auch vorgesehen, dass der Befestigungskörper auf einen als Welle ausgebildeten Rotor aufsetzbar ist. Der Befestigungskörper kann dabei auch als Halter ausgebildet seinIt is also provided according to the invention that the fastening body can be placed on a rotor designed as a shaft. The fastening body can also be designed as a holder

Dabei ist es weiter von Vorteil, wenn der Befestigungskörper auf der Welle durchschwingend gelagert ist. Dies verhindert Blockaden und erhöht gleichzeitig die Schneidleistung.It is also advantageous if the fastening body is mounted swinging on the shaft. This prevents blockages and at the same time increases the cutting performance.

Es ist auch von Vorteil, wenn eine Vielzahl von Befestigungskörpern auf der Welle nebeneinander angeordnet ist.It is also advantageous if a plurality of fastening bodies is arranged next to one another on the shaft.

Nach der Erfindung ist es auch vorgesehen, dass der Befestigungskörper in Schneidrichtung hinter dem Schneidzahn angeordnet ist.According to the invention, it is also provided that the fastening body is arranged in the cutting direction behind the cutting tooth.

Der Schneidzahn ist in einer vorteilhaften Weiterbildung der Erfindung bezüglich des Befestigungskörpers abgewinkelt bzw. abwinkelbar ausgebildet.The cutting tooth is angled in an advantageous development of the invention with respect to the fastening body or formed bendable.

Dabei ist es weiterhin von Vorteil, wenn der Schneidzahn an dem Befestigungskörper lösbar angeordnet ist.It is also advantageous if the cutting tooth is detachably arranged on the fastening body.

Dabei hat es sich als günstig erwiesen, dass der Befestigungskörper schmaler und flacher ausgebildet ist, als der Schneidzahn.It has proved to be favorable that the fastening body is narrower and flatter than the cutting tooth.

Das erfindungsgemäße Schneidwerkzeug zeichnet sich auch dadurch aus, dass der Befestigungskörper wenigstens ein Befestigungsmittel aufweist, mittels dessen die Befestigung auf der Trommel bzw. dem Rotor erfolgt.The cutting tool according to the invention is also characterized in that the fastening body has at least one fastening means, by means of which the attachment to the drum or the rotor takes place.

Hierbei ist es von Vorteil, wenn der Befestigungskörper wenigstens eine Bohrung aufweist, welche das oder die Befestigungsmittel aufnimmt.It is advantageous if the fastening body has at least one bore, which receives the one or more fastening means.

Nach einer vorteilhaften Weiterbildung der Erfindung ist es vorgesehen, dass der Befestigungskörper an der zum Rotor weisenden Seite wenigstens eine Arretierungsnase aufweist, die mit am Rotor, der Trommel bzw. am Halter vorhandenen Nuten zur Justierung zusammenwirken. Der Einbau bzw. der Wechsel der Schneidwerkzeuge wird dadurch vereinfacht und eine ordnungsgemäße, sichere und vor allem genau justierte Lage des Schneidwerkzeugs auf dem Rotor bzw. auf der Trommel ist die Folge dieser Lösung.According to an advantageous embodiment of the invention, it is provided that the fastening body on the side facing the rotor has at least one locking nose, which interact with existing on the rotor, the drum or on the holder grooves for adjustment. The installation or the change of Cutting tools is thereby simplified and a proper, safe and above all precisely adjusted position of the cutting tool on the rotor or on the drum is the result of this solution.

Die Erfindung betrifft auch eine Zerkleinerungsvorrichtung bzw. ZerkleinerungsAnlage mit einem Schneidwerkzeug nach einem oder mehreren der zuvor beschriebenen Ausführungsformen des Schneidwerkzeugs.The invention also relates to a crushing device with a cutting tool according to one or more of the above-described embodiments of the cutting tool.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen und Zeichnungen weiter beschrieben.The invention will be further described below with reference to embodiments and drawings.

Es zeigen:

Fig. 1
eine dreidimensionale Darstellung des erfindungs- gemäßen Schneidwerkzeugs seitlich von oben
Fig. 2
eine um 180 ° gedrehte Darstellung nach Fig. 1
Fig. 3
Unteransicht des Schneidwerkzeugs nach der Erfin- dung und
Fig. 4
Seitenansicht des erfindungsgemäßen Schneid- werkzeugs
Show it:
Fig. 1
a three-dimensional representation of the inventive cutting tool laterally from above
Fig. 2
a rotated by 180 ° representation after Fig. 1
Fig. 3
Bottom view of the cutting tool according to the invention and
Fig. 4
Side view of the cutting tool according to the invention

Die Fig. 1 zeigt eine dreidimensionale Darstellung des erfindungsgemäßen Schneidwerkzeugs. Mit dem Bezugszeichen 1 ist der Schneidzahn bezeichnet. Der Schneidzahn 1 ist in der gezeigten Ausführungsform pyramidenstumpfartig ausgebildet. An seiner Vorderseite bzw. in Schneidrichtung des Pfeils A ist ein Schneidkörper 2/1 angeordnet der die Schneiden 2 trägt bzw. an dem sie ausgebildet sind. Gemäß der gezeigten Variante der Erfindung sind Schneidkörper und Scheidzahn mit V-förmigen Ausfräsungen, Ausnehmungen oder dergleichen versehen, wobei die in Schneidrichtung A liegenden Kanten des Schneidkörpers 2/1 die Schneiden bilden. Dabei ist der Schneidzahn ebenfalls mit diesen V-förmigen Ausnehmungen bzw. Ausfräsungen versehen. Diese folgen dabei der Form der Ausnehmungen am Schneidkörper 2/1 bzw. korrespondieren zu diesen. Vorteilhafterweise sind die Ausnehmungen bzw. Ausfräsungen in Bezug auf den Schneidkörper 2/1 abgewinkelt, so dass ein Freischnitt gegeben ist. Die ist besonders gut aus der Fig. 4 ersichtlich.The Fig. 1 shows a three-dimensional representation of the cutting tool according to the invention. The reference numeral 1 denotes the cutting tooth. The cutting tooth 1 is formed in the embodiment shown truncated pyramid. At its front side or in the cutting direction of the arrow A, a cutting body 2/1 is arranged which carries the cutting edges 2 or on which they are formed. According to the variant of the invention shown cutting body and Scheidzahn are provided with V-shaped recesses, recesses or the like, wherein the lying in the cutting direction A edges of the cutting body 2/1 form the cutting. The cutting tooth is also provided with these V-shaped recesses or cutouts. These follow the shape of the recesses on the cutting body 2/1 or correspond to these. Advantageously, the recesses or cutouts with respect to the Cutting body 2/1 angled, so that a free cut is given. Which is particularly good from the Fig. 4 seen.

Der Schneidzahn 1 ist mit einem Befestigungskörper 3 verbunden, mittels dessen das Schneidwerkzeug insgesamt am nicht dargestellten Rotor bzw. an der Trommel der Zerkleinerungsvorrichtung befestigbar ist. Der Befestigungskörper 3 ist in Schneidrichtung A gesehen hinter dem Schneidzahn 1 angeordnet, schmaler als dieser ausgebildet und gegenüber dem Schneidzahn 1 abgewinkelt. Dabei ist er gemäß der dargestellten vorteilhaften Ausführung der Erfindung schmaler und flacher ausgebildet als der Schneidzahn 1. Der Befestigungskörper 3 ist entsprechend der gezeigten Darstellung lösbar an dem Schneidzahn 1 angeordnet. Varteilhafterweise ist er dazu zweiteilig in Oberteil 3/1 und Unterteil 3/2 geteilt, die den Schneidzahn zangenartig aufnehmen. Durch die zangenartige Ausbildung ist es beispielsweise gegeben, das der Schneidzahn 1 bezüglich des Befestigungskörpers 3 abgewinkelt bzw. abwinkelbar ist. Diese Ausbildung trägt beispielsweise auch dazu bei, dass Stöße bzw. Schläge beim Zerkleinerungsvorgang besser, nämlich federnd abgefangen werden. Am Unterteil 3/2 des Befestigungskörpers 3 sind in der gezeigten Abbildung zwei Arretierungsnasen 5 vorgesehen, die der Arretierung und/oder Zentrierung des gesamten Schneidwerkzeugs auf dem Rotor bzw. an der Trommel oder an dazu korrespondierenden nicht dargestellten Haltern dienen. Zur Aufnahme bzw. Durchführung der Befestigungsmittel ist in dem Befestigungskörper 3 eine Bohrung 4 vorgesehen. Dadurch ist eine Schraubverbindung beispielsweise realisierbar.The cutting tooth 1 is connected to a mounting body 3, by means of which the cutting tool is fastened on the rotor, not shown, or on the drum of the comminution device. The fastening body 3 is arranged in the cutting direction A behind the cutting tooth 1, narrower than this formed and angled relative to the cutting tooth 1. He is according to the illustrated advantageous embodiment of the invention narrower and flatter than the cutting tooth 1. The mounting body 3 is arranged according to the illustration shown releasably on the cutting tooth 1. Varteilhafterweise he is divided in two parts in shell 3/1 and lower part 3/2, which receive the cutting tooth like a pincers. By the pincer-like design, it is for example given that the cutting tooth 1 is angled or angled with respect to the mounting body 3. This training also contributes, for example, that shocks or blows during the crushing process better, namely resiliently intercepted. On the lower part 3/2 of the mounting body 3, two locking lugs 5 are provided in the figure shown, which serve to lock and / or centering of the entire cutting tool on the rotor or on the drum or to corresponding holders, not shown. For receiving or carrying out the fastening means, a bore 4 is provided in the fastening body 3. As a result, a screw connection can be realized, for example.

Fig. 2 zeit eine um 180° gedrehte Darstellung der Fig. 1. Die Bezugszeichen wurden in der Beschreibung der Fig. 1 vorgestellt, werden in gleicher Weise benutzt, so dass auf eine erneute Vorstellung verzichtet werden kann. Fig. 2 time a rotated by 180 ° representation of Fig. 1 , The reference numerals have been used in the description of Fig. 1 are used in the same way, so that can be dispensed with a new idea.

Dies gilt in gleichem Maße auch für die Fig. 3 und 4.This applies equally to the 3 and 4 ,

Die in den abhängigen Ansprüchen angeführten Rückbeziehungen weisen auf die weitere Ausbildung des Gegenstandes des Hauptanspruches durch die Merkmale des jeweiligen Unteranspruches hin. Jedoch sind diese nicht als ein Verzicht auf die Erzielung eines selbständigen, gegenständlichen Schutzes für die Merkmale der rückbezogenen Unteransprüche zu verstehen.The references cited in the dependent claims indicate the further development of the subject matter of the main claim by the features of the respective subclaim. However, these are not to be understood as a waiver of obtaining independent, objective protection for the features of the dependent claims.

Merkmale, die bislang nur in der Beschreibung offenbart wurden, können im Laufe des Verfahrens als von erfindungswesentlicher Bedeutung, zum Beispiel zur Abgrenzung vom Stand der Technik beansprucht werden.Features that have hitherto been disclosed only in the description may be claimed in the course of the method as of essential importance to the invention, for example to distinguish from the prior art.

Claims (10)

  1. Cutting tool for a comminution device or comminution plant, in particular for fast-rotating devices or plants with at least one rotor or cylinder or the like, and at least one counter tool, such as a shredder or the like, comprising a cutting tooth (1) that can be put on the rotor or the cylinder of a comminution device, and that is designed on its side pointing in cutting direction (A) as cutting body (2/1) with a number of cutting edges (2), the cutting body (2/1) is provided in the cutting direction (A) with V-shaped milling grooves, and the milling grooves form the cutting edges (2), wherein a fastening body (3) is provided that can be fastened on a rotor of the comminution device designed as shaft and carries the cutting tooth (1), characterized in that the cutting tooth (1) also has V-shaped recesses, following correspondingly the V-shape of the cutting body (2/1).
  2. Cutting tool according to claim 1, characterized in that the cutting tooth (1) carries a number of cutting edges (2), and/or the cutting tooth (1) comprises a cutting body (2/1) with the cutting edges (2).
  3. Cutting tool according to one or more of the preceding claims, characterized in that the cutting body (2/1) is molded of tool steel, in particular hardened tool steel, and/or the cutting body (2/1) is molded of hard metal.
  4. Cutting tool according to one or more of the preceding claims, characterized in that the cutting body (2/1) is fastened releasable/fixedly, in particular changeably, to the cutting tooth (1), and/or the cutting body (2/1) is fastened to the cutting tooth (1) through a brazed joint.
  5. Cutting tool according to one or more of the preceding claims, characterized in that the cutting tooth (1) is beveled in opposite direction (A) of cutting, the cutting tooth (1) is designed as truncated pyramid, and/or the fastening body (3) has at least one locking catch (5) on the side facing the rotor or the cylinder interacting with the grooves on the rotor for adjusting.
  6. Cutting tool according to one or more of the preceding claims, characterized in that the fastening body (3) is arranged in the direction (A) of cutting behind the cutting tooth (1), and/or the fastening body (3) is supported on the shaft back-swinging, and/or a number of fastening bodies (3) is arranged on the shaft one beside the other.
  7. Cutting tool according to one or more of the preceding claims, characterized in that the cutting tooth (1) is designed with respect to the fastening body (3) in such a way that it is or can be angled, and/or the cutting tooth (1) is arranged releasable on the fastening body (3), and/or the fastening body (3) is designed narrower and flatter than the cutting tooth (1).
  8. Cutting tool according to one or more of the preceding claims, characterized in that the fastening body (3) is designed in two parts with top part (3/1) and bottom part (3/2), and/or the fastening body (3) encircles the cutting tooth (1) tongs-like, and/or the fastening body (3) has at least one fastening means through which the fastening is carried out on the rotor or the cylinder.
  9. Cutting tool according to one or more of the preceding claims, characterized in that the fastening body (3) can be put on at least one holder, holding element or the like on the rotor or cylinder, and/or the fastening body (3) has at least one boring (4) receiving the fastening means.
  10. Comminution device or comminution plant with a cutting tool according to one or more of the preceding claims.
EP04797697A 2003-11-07 2004-11-07 Cutting tool for comminuting devices Active EP1680227B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20317308 2003-11-07
DE202004002094U DE202004002094U1 (en) 2003-11-07 2004-02-12 Paper shredder assembly has a drum with an internal array of contra-rotating teeth
PCT/EP2004/012600 WO2005044455A1 (en) 2003-11-07 2004-11-07 Cutting tool for comminuting devices

Publications (2)

Publication Number Publication Date
EP1680227A1 EP1680227A1 (en) 2006-07-19
EP1680227B1 true EP1680227B1 (en) 2011-03-16

Family

ID=34575548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797697A Active EP1680227B1 (en) 2003-11-07 2004-11-07 Cutting tool for comminuting devices

Country Status (2)

Country Link
EP (1) EP1680227B1 (en)
WO (1) WO2005044455A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005009461B4 (en) * 2005-03-02 2008-01-03 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg AC Schlegel
ES2529053T3 (en) * 2008-03-20 2015-02-16 Centro Grafico Dg S.P.A. Teaser manufacturing procedure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841341A (en) * 1953-08-28 1958-07-01 Catalin Corp Of America Rotary type machine for granulating polystyrene pellets
DE9305835U1 (en) * 1993-04-20 1993-06-17 Doppstadt, Werner, 5620 Velbert Cutting body for the hammer of a rotating impact mechanism

Also Published As

Publication number Publication date
WO2005044455A1 (en) 2005-05-19
EP1680227A1 (en) 2006-07-19

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