EP0868984A2 - Chipper rotor for a chipping machine - Google Patents

Chipper rotor for a chipping machine Download PDF

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Publication number
EP0868984A2
EP0868984A2 EP98104115A EP98104115A EP0868984A2 EP 0868984 A2 EP0868984 A2 EP 0868984A2 EP 98104115 A EP98104115 A EP 98104115A EP 98104115 A EP98104115 A EP 98104115A EP 0868984 A2 EP0868984 A2 EP 0868984A2
Authority
EP
European Patent Office
Prior art keywords
chopping
rotor
clamping plate
clamping
station
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.)
Granted
Application number
EP98104115A
Other languages
German (de)
French (fr)
Other versions
EP0868984B1 (en
EP0868984A3 (en
Inventor
Robert Loth
Rolf Dipl.-Ing. Ameling
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.)
B Maier Zerkleinerungstechnik GmbH
Original Assignee
B Maier Zerkleinerungstechnik GmbH
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 B Maier Zerkleinerungstechnik GmbH filed Critical B Maier Zerkleinerungstechnik GmbH
Publication of EP0868984A2 publication Critical patent/EP0868984A2/en
Publication of EP0868984A3 publication Critical patent/EP0868984A3/en
Application granted granted Critical
Publication of EP0868984B1 publication Critical patent/EP0868984B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/005—Tools therefor

Definitions

  • the invention relates to a chopping rotor for a chopping machine for shredding of wood.
  • a chopping machine has become known, for example, from DE 43 05 120 C1. This is the rotatable chopping rotor crucial component with which logs are shredded into wood chips will.
  • the chopping rotor is preceded by a feed channel that closes it chopping material feeds the chopping rotor.
  • the chopping rotor has a basic rotor body. About the scope of the Rotor base body are arranged distributed individual chopping stations that each include one or more chopping knives, wear plates and Clamping plates.
  • Knife attachment has always been problematic, from the following Reasons: The knives are, of course, wearing parts, which are relatively minor Have a service life and therefore have to be replaced frequently. Of the Changing knives requires a lot of personnel and is therefore very expensive. That is why we strive to include all the components involved, including the knives to design itself in such a way that the knife change takes place quickly.
  • the invention has for its object a chopping rotor according to the To design the preamble of claim 1 so that the knife change easily and can be carried out quickly.
  • each chopping station only has a single clamping plate, the extends over the entire working width of the chopping rotor. Furthermore, the clamping plate is seen in the circumferential direction of the chopping rotor arranged behind the cleaver and in this way on the rotor body stored that the clamping plate about an axis parallel to the chopping rotor axis is pivotable.
  • the fixing of the Cleaver on the rotor body and the attachment of the cleaver relatively simple and easy.
  • the clamp plate only needs to be pivoted to expose the old, worn cleaver. Then the old chopping knives are removed from the basic rotor body, new ones Cleaver inserted and the clamping plate swung back into the Clamping position.
  • the clamping plate extends across the entire width of the chopping rotor stretches, and is therefore quite long, it has a correspondingly high weight.
  • two levers can be provided for pivoting, which are correspondingly long, and at both ends on the clamping plate attack.
  • the clamping plate with a crank mechanism or to provide a motor drive that can be plugged on for example is to pivot the clamping plate about its pivot axis.
  • the chopping rotor shown in FIG. 1 has a basic rotor body 1, furthermore a large number of chopping stations, of which only one station 2 can be seen.
  • the chopping station 2 shown comprises a chopping knife 3 as the most important component. This is sandwiched between a wear plate 4 on the one hand and a clamping plate 5 on the other. According to the representation Figure 1 is the clamped state of the chopping knife 3 with extended Lines illustrated by dashed lines while released is shown.
  • the clamping plate 5 is about an axis 5.1 pivotable.
  • the axis 5.1 runs parallel to the (not shown) Axis of the chopping rotor.
  • a pocket 6 is shown, that of the receptacle the wood chips serve.
  • the clamping plate 5 is assigned a rod-shaped element (rod) 10, which in its details can be seen in Figure 2.
  • Rod 10 has a shaft 10.1 on, also a plug 10.2, which is integral with the shaft 10.1.
  • a swivel lever 10.3 is mounted on shaft 10.1. This is about an axis 10.4 pivotable.
  • Lever 10.3 has a holding claw at its lower end 10.5 on.
  • the plug 10.2 is through a hole in the clamping plate 5 importable.
  • clamping plate 5 could also be in the region of the pivot axis 5.1 a drive can be attached, for example a crank with which the heavy clamping plate 5 can pivot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The basic rotor body has several chopping stations spread out and comprising blades clamped between friction plates and clamping plates. Each station (2) has only a single clamping plate (5) extending over the working width of the rotor. The clamping plate seen in the circumferential direction of the rotor is swivel mounted behind the blade (3) on the rotor body to move about an axis parallel to the rotor axis. After the blades are clamped the clamping plate is locked by a suitable mechanism. Each chopping station can be provided with only one or with several blades.

Description

Die Erfindung betrifft einen Hackrotor für eine Hackmaschine zum Zerkleinern von Holz. Eine solche Hackmaschine ist beispielsweise bekanntgeworden aus DE 43 05 120 C1. Der drehbar gelagerte Hackrotor ist dabei das entscheidende Bauteil, mit dem Holzstämme zu Hackschnitzeln zerkleinert werden. Dem Hackrotor ist ein Einzugskanal vorgeschaltet, der das zu zerhackende Gut dem Hackrotor zuführt.The invention relates to a chopping rotor for a chopping machine for shredding of wood. Such a chopping machine has become known, for example, from DE 43 05 120 C1. This is the rotatable chopping rotor crucial component with which logs are shredded into wood chips will. The chopping rotor is preceded by a feed channel that closes it chopping material feeds the chopping rotor.

Der Hackrotor weist einen Rotorgrundkörper auf. Über den Umfang des Rotor-Grundkörpers verteilt angeordnet sind einzelne Hackstationen, die jeweils ein oder mehrere Hackmesser umfassen, ferner Verschleißplatten und Klemmplatten.The chopping rotor has a basic rotor body. About the scope of the Rotor base body are arranged distributed individual chopping stations that each include one or more chopping knives, wear plates and Clamping plates.

DE 41 26 910 C1 beschreibt einen Hackrotor für eine Hackmaschine zum Hacken von Holzstämmen. Auch hierbei ist eine Vielzahl von über den Rotorgrundkörper verteilten Hackstationen vorgesehen, umfassend Hackmesser, die zwischen Verschleißplatten und Klemmplatten eingespannt sind. Die Arretierung der Klemmplatten und der Hackmesser ist hierbei mittels Schrauben vorgenommen.DE 41 26 910 C1 describes a chopping rotor for a chopping machine Chopping logs. Here too is a variety of over Rotor base body provided distributed chopping stations, comprising Cleaver, clamped between wear plates and clamping plates are. The locking of the clamping plates and the cleaver is here Screws made.

Die Messerbefestigung war von je her problematisch, und zwar aus folgenden Gründen: Die Messer sind natürlich Verschleißteile, die eine relativ geringe Standzeit haben und somit häufig ausgewechselt werden müssen. Der Messerwechsel ist mit personellem Aufwand verbunden und daher sehr teuer. Deswegen ist man bestrebt, alle beteiligten Bauteile einschließlich der Messer selbst derart zu gestalten, daß der Messerwechsel rasch vonstatten geht.Knife attachment has always been problematic, from the following Reasons: The knives are, of course, wearing parts, which are relatively minor Have a service life and therefore have to be replaced frequently. Of the Changing knives requires a lot of personnel and is therefore very expensive. That is why we strive to include all the components involved, including the knives to design itself in such a way that the knife change takes place quickly.

Bisher wurden die einzelnen Messer mit Hilfe von Fliehkeilen oder mit einzelnen Klemmplatten am Rotor-Grundkörper befestigt. Dies war außerordentlich aufwendig. Die Klemmplatten an jeder Hackstation mußten nämlich komplett entfernt werden.So far, the individual knives were using centrifugal wedges or with individual clamping plates attached to the rotor base body. This was extraordinarily complex. The clamping plates at every chopping station had to namely be completely removed.

Der Erfindung liegt die Aufgabe zugrunde, einen Hackrotor gemäß dem Oberbegriff von Anspruch 1 derart zu gestalten, daß der Messerwechsel leicht und schnell vollzogen werden kann.The invention has for its object a chopping rotor according to the To design the preamble of claim 1 so that the knife change easily and can be carried out quickly.

Diese Aufgabe wird durch die kennzeichnenden Merkmale von Anspruch 1 gelöst.This object is achieved by the characterizing features of claim 1 solved.

Demgemäß weist jede Hackstation nur noch eine einzige Klemmplatte auf, die sich über die gesamte Arbeitsbreite des Hackrotors hinweg erstreckt. Weiterhin ist die Klemmplatte in Umfangsrichtung des Hackrotors gesehen hinter dem Hackmesser angeordnet und derart am Rotorgrundkörper gelagert, daß die Klemmplatte um eine zur Hackrotorachse parallele Achse verschwenkbar ist.Accordingly, each chopping station only has a single clamping plate, the extends over the entire working width of the chopping rotor. Furthermore, the clamping plate is seen in the circumferential direction of the chopping rotor arranged behind the cleaver and in this way on the rotor body stored that the clamping plate about an axis parallel to the chopping rotor axis is pivotable.

Mit einem solchen erfindungsgemäßen Aufbau ist das Fixieren der Hackmesser am Rotorgrundkörper und das Befestigen der Hackmesser relativ einfach und leicht. Die Klemmplatte braucht nämlich nur verschwenkt zu werden, um die alten, verschlissenen Hackmesser freizulegen. Sodann werden die alten Hackmesser vom Rotorgrundkörper entnommen, neue Hackmesser eingelegt und die Klemmplatte wieder zurückverschwenkt in die Klemmposition.With such a structure according to the invention, the fixing of the Cleaver on the rotor body and the attachment of the cleaver relatively simple and easy. The clamp plate only needs to be pivoted to expose the old, worn cleaver. Then the old chopping knives are removed from the basic rotor body, new ones Cleaver inserted and the clamping plate swung back into the Clamping position.

Da sich die Klemmplatte über die gesamte Breite des Hackrotors hinweg erstreckt, und somit recht lang ist, hat sie ein entsprechend hohes Gewicht. Zum Verschwenken können beispielsweise zwei Hebel vorgesehen werden, die entsprechend lang sind, und die an beiden Enden an der Klemmplatte angreifen. Es ist aber auch denkbar, die Klemmplatte mit einem Kurbeltrieb oder einem motorischen Antrieb zu versehen, der beispielsweise aufsteckbar ist, um die Klemmplatte um ihre Schwenkachse zu verschwenken.Because the clamping plate extends across the entire width of the chopping rotor stretches, and is therefore quite long, it has a correspondingly high weight. For example, two levers can be provided for pivoting, which are correspondingly long, and at both ends on the clamping plate attack. But it is also conceivable for the clamping plate with a crank mechanism or to provide a motor drive that can be plugged on, for example is to pivot the clamping plate about its pivot axis.

Die Erfindung ist anhand der Zeichnung näher erläutert. Darin ist im einzelnen folgendes dargestellt:

Fig. 1
zeigt einen Ausschnitt aus einem Hackrotor, und zwar von einer Stirnseite her gesehen, im Bereich einer Hackstation.
Fig. 2
zeigt eine Einzelheit aus dem Gegenstand von Fig. 1 in einer vergrößerten Darstellung.
The invention is explained in more detail with reference to the drawing. The following is shown in detail:
Fig. 1
shows a section of a chopping rotor, seen from the front, in the area of a chopping station.
Fig. 2
shows a detail of the subject of Fig. 1 in an enlarged view.

Der in Figur 1 gezeigte Hackrotor weist einen Rotorgrundkörper 1 auf, ferner eine Vielzahl von Hackstationen, von denen nur eine Station 2 zu sehen ist. Die gezeigte Hackstation 2 umfaßt als wichtigstes Bauteil ein Hackmesser 3. Dieses ist sandwichartig eingespannt zwischen einer Verschleißplatte 4 einerseits und einer Klemmplatte 5 andererseits. In der Darstellung gemäß Figur 1 ist der eingespannte Zustand des Hackmessers 3 mit ausgezogenen Linien veranschaulicht, während der freigegebene Zustand gestrichelt dargestellt ist.The chopping rotor shown in FIG. 1 has a basic rotor body 1, furthermore a large number of chopping stations, of which only one station 2 can be seen. The chopping station 2 shown comprises a chopping knife 3 as the most important component. This is sandwiched between a wear plate 4 on the one hand and a clamping plate 5 on the other. According to the representation Figure 1 is the clamped state of the chopping knife 3 with extended Lines illustrated by dashed lines while released is shown.

Wie man aus Figur 1 weiterhin erkennt, ist die Klemmplatte 5 um eine Achse 5.1 verschwenkbar. Die Achse 5.1 verläuft parallel zur (nicht dargestellten) Achse des Hackrotors.As can also be seen from FIG. 1, the clamping plate 5 is about an axis 5.1 pivotable. The axis 5.1 runs parallel to the (not shown) Axis of the chopping rotor.

Der Vollständigkeit halber ist noch eine Tasche 6 gezeigt, die der Aufnahme der Hackschnitzel dient.For the sake of completeness, a pocket 6 is shown, that of the receptacle the wood chips serve.

Der Klemmplatte 5 ist ein stabförmiges Element (Stab) 10 zugeordnet, das in seinen Einzelheiten aus Figur 2 erkennbar ist. Stab 10 weist einen Schaft 10.1 auf, ferner einen Pfropfen 10.2, der mit dem Schaft 10.1 einteilig ist. Am Schaft 10.1 ist ein Schwenkhebel 10.3 gelagert. Dieser ist um eine Achse 10.4 verschwenkbar. Hebel 10.3 weist an seinem unteren Ende eine Halteklaue 10.5 auf. Der Propfen 10.2 ist durch eine Bohrung in die Klemmplatte 5 einführbar. Bei Verschwenken des Schwenkhebels 10.3 im Gegenzeigersinn greift die Halteklaue 10.5 unter die untere Fläche der Klemmplatte 5, so daß der Stab 10 mit der Klemmplatte 5 verriegelt ist. Wird der Schwenkhebel 10.3 im Uhrzeigersinn gegen den Schaft 10.1 herangezogen, so findet ein Entriegeln der Halteklaue 10.5 statt. Eine Zugfeder 10.6 versucht, den Schwenkhebel 10.3 stets in jene Stellung zu verschwenken, in welcher sich die Halteklaue 10.5 in eingerastetem oder verriegeltem Zustand befindet.The clamping plate 5 is assigned a rod-shaped element (rod) 10, which in its details can be seen in Figure 2. Rod 10 has a shaft 10.1 on, also a plug 10.2, which is integral with the shaft 10.1. At the A swivel lever 10.3 is mounted on shaft 10.1. This is about an axis 10.4 pivotable. Lever 10.3 has a holding claw at its lower end 10.5 on. The plug 10.2 is through a hole in the clamping plate 5 importable. When pivoting the pivot lever 10.3 in the counterclockwise direction engages the holding claw 10.5 under the lower surface of the clamping plate 5, so that the rod 10 is locked with the clamping plate 5. If the swivel lever 10.3 pulled clockwise against the shaft 10.1, so a Unlock the holding claw 10.5 instead. A tension spring 10.6 tries the Always pivot the pivot lever 10.3 into the position in which it is the holding claw 10.5 is in the locked or locked state.

Man erkennt aus beiden Figuren weiterhin einen Hebel 7. Dieser kann in eine Bohrung im Schaft 10.1 eingeführt werden, wenn man die Klemmplatte 5 verschwenken möchte, sei es in die klemmende oder in die freigebende Position.One can still see a lever 7 from both figures Bore in the shaft 10.1 are inserted when the clamping plate 5 want to pivot, be it in the clamping or in the releasing Position.

Alternativ könnte auch an die Klemmplatte 5 im Bereich der Schwenkachse 5.1 ein Antrieb angesetzt werden, beispielsweise eine Kurbel, mit der sich die schwere Klemmplatte 5 verschwenken läßt.Alternatively, the clamping plate 5 could also be in the region of the pivot axis 5.1 a drive can be attached, for example a crank with which the heavy clamping plate 5 can pivot.

Claims (4)

Hackrotor für eine Hackmaschine zum Hacken von Holzstämmen 1.1 mit einem Rotorgrundkörper; 1.2 mit einer Vielzahl von über den Rotorgrundkörper verteilten Hackstationen, umfassend Hackmesser, die zwischen Verschleißplatten und Klemmplatten eingespannt sind, gekennzeichnet durch die folgenden Merkmale: 1.3 jede Hackstation (2) weist nur eine einzige Klemmplatte (5) auf, die sich über die Arbeitsbreite des Hackrotors erstreckt; 1.4 die Klemmplatte (5) ist in Umlaufrichtung des Hackrotors gesehen hinter dem Hackmesser (3) am Rotorgrundkörper schwenkbar gelagert, und zwar um eine zur Hackrotorachse parallele Achse: 1.5 es ist eine Einrichtung zum Verriegeln der Klemmplatte (5) nach dem Einspannen der Hackmesser (3) vorgesehen. Chopping rotor for a chopping machine for chopping logs 1.1 with a basic rotor body; 1.2 with a large number of chopping stations distributed over the basic rotor body, including chopping knives which are clamped between wear plates and clamping plates, characterized by the following features: 1.3 each chopping station (2) has only a single clamping plate (5) which extends over the working width of the chopping rotor; 1.4 the clamping plate (5), viewed in the direction of rotation of the chopping rotor, is pivotably mounted behind the chopping knife (3) on the rotor base body, namely about an axis parallel to the chopping rotor axis: 1.5 a device is provided for locking the clamping plate (5) after clamping the cleaver (3). Hackrotor nach Anspruch 1, dadurch gekennzeichnet, daß nur ein oder mehrere Hackmesser (3) pro Hackstation (2) vorgesehen sind, die sich über die gesamte Breite des Hackrotors hinweg erstrecken.Chopping rotor according to claim 1, characterized in that only one or Several chopping knives (3) are provided per chopping station (2) extend over the entire width of the chopping rotor. Hackrotor nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein stabförmiges Element (Stab 10) vorgesehen ist, der mit seinem einen Ende in eine Bohrung der Klemmplatte (5) einführbar und darin befestigbar ist, und der an seinem anderen Ende eine Bohrung zum Einführen eines Schwenkhebels zum Verschwenken der Klemmplatte (5) aufweist.Chopping rotor according to claim 1 or 2, characterized in that a rod-shaped element (rod 10) is provided, with its one Insertable into a hole in the clamping plate (5) and in it is attachable, and at its other end a hole for Introduction of a pivot lever for pivoting the clamping plate (5). Hackrotor nach Anspruch 3, gekennzeichnet durch die folgenden Merkmale: 4.1 der Stab (10) weist eine Halteklaue (10.5) auf, die durch die Klemmplatte (5) hindurchführbar ist; 4.2 es ist eine Feder (10.6) vorgesehen, die die Halteklaue (10.5) in eine Einrastposition verschwenkt, in welcher die Halteklaue (10.5) die Klemmplatte (5) festhält. Chopping rotor according to claim 3, characterized by the following features: 4.1 the rod (10) has a holding claw (10.5) which can be passed through the clamping plate (5); 4.2 a spring (10.6) is provided which pivots the holding claw (10.5) into a latching position in which the holding claw (10.5) holds the clamping plate (5).
EP19980104115 1997-04-03 1998-03-07 Chipper rotor for a chipping machine Expired - Lifetime EP0868984B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997113726 DE19713726C1 (en) 1997-04-03 1997-04-03 Chopping rotor for wood shredders
DE19713726 1997-04-03

Publications (3)

Publication Number Publication Date
EP0868984A2 true EP0868984A2 (en) 1998-10-07
EP0868984A3 EP0868984A3 (en) 2000-04-19
EP0868984B1 EP0868984B1 (en) 2005-03-02

Family

ID=7825310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980104115 Expired - Lifetime EP0868984B1 (en) 1997-04-03 1998-03-07 Chipper rotor for a chipping machine

Country Status (3)

Country Link
EP (1) EP0868984B1 (en)
DE (1) DE19713726C1 (en)
ES (1) ES2236841T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19818165C1 (en) * 1998-04-23 1999-08-12 Maier Zerkleinerungstech Gmbh Machine for shaping wood
DE202017000378U1 (en) 2017-01-24 2018-04-25 B. Maier Zerkleinerungstechnik Gmbh Knife drum for shredding wood

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1528304A1 (en) * 1965-01-14 1970-10-08 Brundell & Johnsson Ab Cutting machine
DE2208687B1 (en) * 1972-02-24 1973-06-14 Hombak Maschinenfab Kg Knife shaft for woodworking machines
DE7635031U1 (en) * 1976-11-05 1977-12-01 Kreuznacher Maschinenbaugesellschaft Hombak Mbh, 6550 Bad Kreuznach CUTTER SHAFT FOR WOOD CHIPPING MACHINES

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126910C1 (en) * 1991-08-14 1992-09-24 Georg Weiss Gmbh, 8201 Schechen, De
DE4305120C1 (en) * 1993-02-19 1994-06-30 Maier Zerkleinerungstech Gmbh Chopping machine for wood-shredding
DE4327120C1 (en) * 1993-08-13 1995-01-19 Ahwi Maschb Gmbh Cutting body

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1528304A1 (en) * 1965-01-14 1970-10-08 Brundell & Johnsson Ab Cutting machine
DE2208687B1 (en) * 1972-02-24 1973-06-14 Hombak Maschinenfab Kg Knife shaft for woodworking machines
DE7635031U1 (en) * 1976-11-05 1977-12-01 Kreuznacher Maschinenbaugesellschaft Hombak Mbh, 6550 Bad Kreuznach CUTTER SHAFT FOR WOOD CHIPPING MACHINES

Also Published As

Publication number Publication date
EP0868984B1 (en) 2005-03-02
ES2236841T3 (en) 2005-07-16
DE19713726C1 (en) 1998-06-25
EP0868984A3 (en) 2000-04-19

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