EP1050391A2 - Hammer chipper for chipping - Google Patents

Hammer chipper for chipping Download PDF

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Publication number
EP1050391A2
EP1050391A2 EP00108301A EP00108301A EP1050391A2 EP 1050391 A2 EP1050391 A2 EP 1050391A2 EP 00108301 A EP00108301 A EP 00108301A EP 00108301 A EP00108301 A EP 00108301A EP 1050391 A2 EP1050391 A2 EP 1050391A2
Authority
EP
European Patent Office
Prior art keywords
impact
rotor
grinding
sieve
chipper
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
EP00108301A
Other languages
German (de)
French (fr)
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EP1050391A3 (en
EP1050391B1 (en
Inventor
Robert Loth
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
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Publication of EP1050391A2 publication Critical patent/EP1050391A2/en
Publication of EP1050391A3 publication Critical patent/EP1050391A3/en
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Publication of EP1050391B1 publication Critical patent/EP1050391B1/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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C13/284—Built-in screens
    • 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
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters 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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/282—Shape or inner surface of mill-housings
    • 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
    • B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like

Definitions

  • the invention relates to an impact chipper for machining Chips for shavings.
  • the chips generated are mainly in used in the chipboard industry. With impact cutters in question here chips are to be generated, similar to those in Knife ring cutters.
  • the chips from impact cutters are slim and pin-shaped.
  • Such an impact cutter includes a horizontal impact rotor Rotor shaft, also a shell made of sieve segments surrounding the impact rotor and from grinding elements.
  • the sieve segments and the grinding elements alternately arranged around the rotor circumference, and leave a section of the rotor circumference for feeding wood chips.
  • the entire shell is in turn surrounded by a housing, comprising two end walls that are more or less perpendicular to the rotor shaft, a peripheral wall, and a feed pipe for feeding the shredding wood chips.
  • the feed port is in general in the upper area of the housing.
  • Knife-less striking tools can be used with different Racket thicknesses can be optimally matched to the material to be shredded. They shred waste wood down to blown material.
  • the one to be treated Pre-shredded goods can consist of waste wood, such as Chipboard residues, veneer waste, pallets etc., but also from Hard rubber products, garbage, paper, glass, etc.
  • DE-PS 704 853 describes a screen hammer mill. There are sieve segments pivotable about axes that run parallel to the rotor axis.
  • the invention has for its object a percussion cutter mentioned type in such a way that the sensitive parts easily accessible and exchangeable in a short time with low personnel expenditure are.
  • the adjustment work when installing new parts should be like this be as small as possible.
  • the impact cutter shown in FIG. 1 is constructed as follows: It comprises a drum-type percussion rotor 1 with a horizontal one Rotor shaft 1.1.
  • the percussion rotor 1 has percussion tools that are more well known Way can be built.
  • the percussion rotor 1 is enveloped by sieve segments 2.1, 2.2, 2.3 and 2.4, also of grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5.
  • sieve segments 2.1, 2.2, 2.3 and 2.4 shown could also be a different one Number of sieve segments 2.1, 2.2, 2.3 and 2.4 may be provided, for example 3 or 5.
  • a different number of Grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 may be provided instead of here shown five grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5, thus a larger one or a smaller number.
  • the illustration shows the sieve segments 2.1, 2.2, 2.3 and 2.4 and the Grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 are arranged alternately. It but could also two grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 immediately follow each other.
  • the percussion rotor 1 is not completely of the sieve segments 2.1, 2.2, 2.3 and 2.4 and the grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 enveloped. Rather remains an upper area of the rotor circumference is free.
  • the unit described so far - impact rotor 1, sieve segments 2.1 to 2.4 and grinding elements 3.1 to 3.5 - are in turn from a housing 4th surround.
  • the housing 4 has two end walls, which are essentially perpendicular to the axis of the impact rotor 1 and thus run vertically. It points but also a peripheral wall 4.1, 4.2, 4.3, 4.4 and 4.5.
  • a feed connector 4.6 By a stream of wood chips is introduced into this, which is mentioned in the above open area is supplied to the impact rotor 1. He then gets into the Gap between the individual sieve segments 2.1, 2.2, 2.3 and 2.4 or Grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 on the one hand and the outer surface of the Impact rotor 1 is formed.
  • a heavy material separator 5 can be connected upstream of the impact chipper, which, however, is not part of the invention.
  • the sieve segment 2.3 is from the lateral surface of the Impact rotor 1 pivoted so that it releases the outer surface. It is it pivots about a pivot axis II.
  • the sieve segment 2.2 is also pivotable about the pivot axis II.
  • the grinding segments 3.1 and 3.5 with the Segments 2.1 and 2.4 screwed tight You are at the free Ends of the named sieve segments 2.1, 2.4.
  • the grinding elements 3.2, 3.3 and 3.4 are free from the neighboring sieve segments 2.2, 2.3. she but are in the direction of their own longitudinal axis - thus simultaneously in Direction of the axis of the impact rotor 1 - and thus perpendicular to one of the two end walls of the housing 4 extendable.
  • the grinding elements 3.1, 3.2, 3.3, 3.4, 3.5 are, as you can see, with tooth-like Elements, or with strips that extend over their entire length extend. In practice, the length is two meters. The Weight is correspondingly large. That is why the grinding elements are heavy manageable.
  • the grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 divided into lengths.
  • a Grinding element 3.1, 3.2, 3.3, 3.4 and 3.5 two lengths on the Grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 due to wear taken out to be exchanged for new ones, that's it Handling the divided length sections of course much easier.
  • the grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 magnetic on their faces, so that a north pole of one Element faces one south pole of the other and a certain one Locking takes place between the two lengths.
  • magnetism is such that the locking when Removing is easy to solve, for example by jerky Pull out.
  • An alternative is a claw connection.
  • the grinding surfaces of the grinding elements 3.1 and 3.5 are somewhat designed differently than those of the other grinding elements 3.2, 3.3, 3.4. she are namely slightly curved, together with the lateral surface of the Impact rotor 1 a feed gap for the incoming chips form.
  • Figure 2 shows the situation somewhat more precisely.
  • Sieve segment 2.1 and grinding element 3.2 shown, both in closed state, i.e. enveloping the outer surface of the impact rotor 1, as well as in the opened state, in which the screen element 2.1 runs practically horizontally.
  • the grinding element 3.4 can be the only one of the grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 also move in the horizontal direction, namely in the figure left, i.e. away from the impact rotor 1.
  • part of the Circumferential wall 4.4 namely wall section 4.4.1 in the same direction move, so far that the grinding element 3.4 completely from the Housing 4 can be moved out. If this has happened, the entire rotor also at least a certain distance to the left move or remove completely from the housing 9, what with repair and Maintenance work can be helpful.
  • the pivoting of the sieve segments 2.1, 2.2, 2.3 and 2.4 can also done pneumatically or hydraulically.
  • the screen elements 2.1, 2.2, 2.3 and 2.4 generally comprise Slotted plates that face the outer surface of the impact rotor 1 directly are and run parallel to this. The slots run in Circumferential direction. However, this is not absolutely the case. Otherwise, the Design of the screen surface is not the subject of the invention.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Crushing And Grinding (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

The impact cutter has an impact rotor (1) on a horizontal shaft and with peripheral filter grills (2) and hammers (3) mounted alternately on it. A part of the periphery is free for the flow of chippings. The rotor is mounted in a casing with supports for the chippings. At least one of the filter sections is pivotable parallel to the rotor axis and at least one of the hammers is movable parallel to the rotor axis.

Description

Die Erfindung betrifft einen Schlagzerspaner zum Zerspanen von Hackschnitzeln zum Spänen. Die damit erzeugte Späne werden vor allem in der Spanplattenindustrie eingesetzt. Mit Schlagzerspanern der hier in Rede stehenden Art sollen Späne erzeugt werden, ähnlich jenen wie bei Messerring-Zerspanern. Die Späne von Schlagzerspanern sind schlank und stiftförmig.The invention relates to an impact chipper for machining Chips for shavings. The chips generated are mainly in used in the chipboard industry. With impact cutters in question here chips are to be generated, similar to those in Knife ring cutters. The chips from impact cutters are slim and pin-shaped.

Ein solcher Schlagzerspaner umfaßt einen Schlagrotor mit horizontaler Rotorwelle, ferner eine den Schlagrotor umgebende Hülle aus Siebsegmenten und aus Mahlelementen. Dabei sind die Siebsegmente und die Mahlelemente über den Rotorumfang abwechselnd angeordnet, und lassen einen Abschnitt des Rotorumfangs zum Zuführen von Hackschnitzeln frei.Such an impact cutter includes a horizontal impact rotor Rotor shaft, also a shell made of sieve segments surrounding the impact rotor and from grinding elements. The sieve segments and the grinding elements alternately arranged around the rotor circumference, and leave a section of the rotor circumference for feeding wood chips.

Die gesamte Hülle ist wiederum von einem Gehäuse umgeben, umfassend zwei Stirnwände, die mehr oder minder senkrecht zur Rotorwelle verlaufen, eine Umfangswand, und einen Zuführstutzen zum Zuführen der zu zerkleinernden Hackschnitzel. Der Zuführstutzen befindet sich im allgemeinem im oberen Bereich des Gehäuses.The entire shell is in turn surrounded by a housing, comprising two end walls that are more or less perpendicular to the rotor shaft, a peripheral wall, and a feed pipe for feeding the shredding wood chips. The feed port is in general in the upper area of the housing.

Zerkleinerungsmaschinen mit Schlagrotoren sind seit langem bekannt. Sie stellen eine optimale Lösung von Zerkleinerungsproblemen dar. Die dabei verwendeten messerlosen Schlagwerkzeuge können mit verschiedenen Schlägerdicken optimal auf das zu zerkleinernde Material abgestimmt werden. Sie zerkleinern Abfallholz bis zu einblasfähigem Gut. Das zu behandelnde vorzerkleinerte Gut kann aus Abfallholz bestehen, wie beispielsweise aus Spanplattenresten, Furnierabfällen, Paletten usw., aber auch aus Hartgummierzeugnissen, Müll, Papier, Glas usw. Crushers with impact rotors have been known for a long time. she represent an optimal solution to shredding problems Knife-less striking tools can be used with different Racket thicknesses can be optimally matched to the material to be shredded. They shred waste wood down to blown material. The one to be treated Pre-shredded goods can consist of waste wood, such as Chipboard residues, veneer waste, pallets etc., but also from Hard rubber products, garbage, paper, glass, etc.

Die vom Gut berührten Bauteile einer solchen Zerkleinerungsmaschine unterliegen dem Verschleiß. Sie haben daher nur eine begrenzte Lebensdauer und müssen von Zeit zu Zeit ausgetauscht werden. Vom Verschleiß sind ganz besonders die Schläger betroffen. Die Standzeiten der Schläger betragen je nach Einsatzfall und Art des Gutes einige Wochen bis zu einigen Monaten. Dann müssen sie ausgebaut werden. Auch die Mahlsegmente sind starkem Verschleiß ausgesetzt. Schließlich verschleißen die Siebelemente mit ihren in Umfangsrichtung Schlitzen auf der kompletten Innenfläche. Ferner können die Siebe von Fremdkörpern durchschlagen bzw. ausgebeult werden.The components of such a shredding machine that are touched by the material are subject to wear. They therefore have a limited lifespan and need to be replaced from time to time. Wear is whole particularly hit the thugs. The lifespan of the rackets is each Depending on the application and type of goods, a few weeks to a few months. Then they have to be removed. The grinding segments are also strong Exposed to wear. Finally, the sieve elements wear out with their in Circumferential direction slits on the entire inner surface. Furthermore, the Sieves of foreign bodies penetrate or bulge.

Das Austauschen der verschlissenen Teile bzw. das Reinigen der Siebelemente ist zeitaufwendig und mühsam. Zunächst müssen die Gehäusewandungen geöffnet werden, sodann müssen die Siebsegmente sowie die Mahlelemente abgeschraubt und entfernt werden. Sind Arbeiten an der drehbar gelagerten Trommel fällig, so ist dies wegen mangelnder Zugänglichkeit im besonderen Maße schwierig.Replacing the worn parts or cleaning the Sieve elements are time-consuming and tedious. First of all, the Housing walls are opened, then the sieve segments as well as unscrewing and removing the grinding elements. Are working on due to the rotatably mounted drum, this is due to lack Accessibility particularly difficult.

DE-PS 704 853 beschreibt eine Siebhammermühle. Dabei sind Siebsegmente um Achsen schwenkbar, die parallel zur Rotorachse verlaufen.DE-PS 704 853 describes a screen hammer mill. There are sieve segments pivotable about axes that run parallel to the rotor axis.

Der Erfindung liegt die Aufgabe zugrunde, einen Schlagzerspaner der genannten Art derart zu gestalten, daß die neuralgischen Teile leicht zugänglich und mit geringem Personalaufwand in kurzer Zeit austauschbar sind. Die Justierarbeiten beim Einbau von neuen Teilen sollen hierbei so gering wie möglich sein.The invention has for its object a percussion cutter mentioned type in such a way that the sensitive parts easily accessible and exchangeable in a short time with low personnel expenditure are. The adjustment work when installing new parts should be like this be as small as possible.

Diese Aufgabe wird durch die Merkmale von Anspruch 1 gelöst. Dabei führt besonders das Verschwenken der Siebelemente zum Erfolg. Der Zerspaner kann derart aufgebaut sein, daß einzelne Siebelemente um eine Achse verschwenkbar sind, die parallel zur Rotorachse verläuft. Es kann aber auch daran gedacht werden, jeweils ein Siebsegment mit einem benachbarten Mahlelement fest zu verbinden. Das Mahlelement ist in einem solchen Falle an das - in Umfangsrichtung gesehen - eine Ende des Siebsegmentes angeschlossen, während sich die Drehachse am anderen Ende des Siebsegmentes befindet. Somit lassen sich ein Siebsegment und ein hieran befestigtes Mahlelement gemeinsam von der Trommel abschwenken. Die ganze Einheit wird somit gewissermaßen "entblättert", ähnlich wie beim Schälen einer Orange. Die Erfindung ist anhand der Zeichnungen näher erläutert. Darin ist im einzelnen folgendes dargestellt:

Figur 1
zeigt einen Schlagzerspaner in einer Seitenansicht.
Figur 2
zeigt einen Ausschnitt aus dem Gegenstand von Figur 1 in vergrößerter Darstellung ohne Trommel.
Figur 3
zeigt den Gegenstand von Figur 2 mit einem aufgeklappten Siebelement, das ein Mahlelement an seinem freien Ende trägt.
This object is solved by the features of claim 1. The pivoting of the screen elements is particularly successful. The chipper can be constructed in such a way that individual screen elements can be pivoted about an axis that runs parallel to the rotor axis. However, it can also be considered to firmly connect a sieve segment to an adjacent grinding element. In such a case, the grinding element is connected to one end of the sieve segment, as seen in the circumferential direction, while the axis of rotation is located at the other end of the sieve segment. A sieve segment and a grinding element attached to it can thus be swiveled together from the drum. The whole unit is thus "defoliated", similar to peeling an orange. The invention is explained in more detail with reference to the drawings. The following is shown in detail:
Figure 1
shows an impact chipper in a side view.
Figure 2
shows a section of the subject of Figure 1 in an enlarged view without a drum.
Figure 3
shows the object of Figure 2 with an opened screen element, which carries a grinding element at its free end.

Der in Figur 1 gezeigte Schlagzerspaner ist wie folgt aufgebaut: Er umfaßt einen trommelartigen Schlagrotor 1 mit einer horizontalen Rotorwelle 1.1. Der Schlagrotor 1 weist Schlagwerkzeuge auf, die bekannter Weise aufgebaut sein können.The impact cutter shown in FIG. 1 is constructed as follows: It comprises a drum-type percussion rotor 1 with a horizontal one Rotor shaft 1.1. The percussion rotor 1 has percussion tools that are more well known Way can be built.

Der Schlagrotor 1 ist umhüllt von Siebsegmenten 2.1, 2.2, 2.3 und 2.4, außerdem von Mahlelementen 3.1, 3.2, 3.3, 3.4 und 3.5. Statt der hier dargestellten vier Siebsegmente 2.1, 2.2, 2.3 und 2.4 könnte auch eine andere Anzahl von Siebsegmenten 2.1, 2.2, 2.3 und 2.4 vorgesehen sein, beispielsweise 3 oder 5. Außerdem könnte eine andere Anzahl von Mahlelementen 3.1, 3.2, 3.3, 3.4 und 3.5 vorgesehen sein, statt der hier dargestellten fünf Mahlelemente 3.1, 3.2, 3.3, 3.4 und 3.5, somit eine größere oder eine kleinere Anzahl.The percussion rotor 1 is enveloped by sieve segments 2.1, 2.2, 2.3 and 2.4, also of grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5. Instead of this Four sieve segments 2.1, 2.2, 2.3 and 2.4 shown could also be a different one Number of sieve segments 2.1, 2.2, 2.3 and 2.4 may be provided, for example 3 or 5. In addition, a different number of Grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 may be provided instead of here shown five grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5, thus a larger one or a smaller number.

In der Darstellung sind die Siebsegmente 2.1, 2.2, 2.3 und 2.4 und die Mahlelemente 3.1, 3.2, 3.3, 3.4 und 3.5 jeweils abwechselnd angeordnet. Es könnten aber auch zwei Mahlelemente 3.1, 3.2, 3.3, 3.4 und 3.5 unmittelbar aufeinander folgen.The illustration shows the sieve segments 2.1, 2.2, 2.3 and 2.4 and the Grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 are arranged alternately. It but could also two grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 immediately follow each other.

Der Schlagrotor 1 ist nicht völlig von den Siebsegmenten 2.1, 2.2, 2.3 und 2.4 und den Mahlelementen 3.1, 3.2, 3.3, 3.4 und 3.5 eingehüllt. Vielmehr bleibt ein oberer Bereich des Rotorumfanges frei.The percussion rotor 1 is not completely of the sieve segments 2.1, 2.2, 2.3 and 2.4 and the grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 enveloped. Rather remains an upper area of the rotor circumference is free.

Die bisher beschriebene Einheit - Schlagrotor 1, Siebsegmente 2.1 bis 2.4 und Mahlelemente 3.1 bis 3.5 - sind wiederum von einem Gehäuse 4 umgeben. Das Gehäuse 4 weist zwei Stirnwände auf, die im wesentlichen senkrecht zur Achse des Schlagrotors 1 und somit vertikal verlaufen. Es weist aber auch eine Umfangswand 4.1, 4.2, 4.3, 4.4 und 4.5 auf.The unit described so far - impact rotor 1, sieve segments 2.1 to 2.4 and grinding elements 3.1 to 3.5 - are in turn from a housing 4th surround. The housing 4 has two end walls, which are essentially perpendicular to the axis of the impact rotor 1 and thus run vertically. It points but also a peripheral wall 4.1, 4.2, 4.3, 4.4 and 4.5.

Im oberen Bereich des Gehäuses 4 befindet sich ein Zufuhrstutzen 4.6. Durch diesen wird ein Hackschnitzelstrom eingeführt, der in dem zuvor genannten offenen Bereich dem Schlagrotor 1 zugeführt wird. Er gelangt sodann in den Spalt, der zwischen den einzelnen Siebsegmenten 2.1, 2.2, 2.3 und 2.4 bzw. Mahlelementen 3.1, 3.2, 3.3, 3.4 und 3.5 einerseits und der Mantelfläche des Schlagrotors 1 gebildet ist.In the upper area of the housing 4 there is a feed connector 4.6. By a stream of wood chips is introduced into this, which is mentioned in the above open area is supplied to the impact rotor 1. He then gets into the Gap between the individual sieve segments 2.1, 2.2, 2.3 and 2.4 or Grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 on the one hand and the outer surface of the Impact rotor 1 is formed.

Dem Schlagzerspaner kann ein Schwergutabscheider 5 vorgeschaltet sein, der jedoch nicht Bestandteil der Erfindung ist.A heavy material separator 5 can be connected upstream of the impact chipper, which, however, is not part of the invention.

Wie man sieht, ist das Siebsegment 2.3 von der Mantelfläche des Schlagrotors 1 abgeschwenkt, so daß es die Mantelfläche freigibt. Dabei ist es um eine Schwenkachse II verschwenkt. Das Siebsegment 2.2 ist ebenfalls um die Schwenkachse II verschwenkbar.As you can see, the sieve segment 2.3 is from the lateral surface of the Impact rotor 1 pivoted so that it releases the outer surface. It is it pivots about a pivot axis II. The sieve segment 2.2 is also pivotable about the pivot axis II.

Man erkennt noch weitere Schwenkachsen I und III, um welche die beiden Siebsegmente 2.1 und 2.4 verschwenkbar sind. You can see other swivel axes I and III around which the two Sieve segments 2.1 and 2.4 are pivotable.

Bei dieser Ausführungsform sind die Mahlsegmente 3.1 und 3.5 mit den Segmenten 2.1 bzw. 2.4 fest verschraubt. Sie befinden sich an den freien Enden der genannten Siebsegmente 2.1, 2.4. Die Mahlelemente 3.2, 3.3 und 3.4 hingegen sind von den benachbarten Siebsegmenten 2.2, 2.3 frei. Sie sind aber in der Richtung ihrer eigenen Längsachse - somit gleichzeitig in Richtung der Achse des Schlagrotors 1 - und damit senkrecht zu einer der beiden Stirnwände des Gehäuses 4 ausfahrbar.In this embodiment, the grinding segments 3.1 and 3.5 with the Segments 2.1 and 2.4 screwed tight. You are at the free Ends of the named sieve segments 2.1, 2.4. The grinding elements 3.2, 3.3 and 3.4, however, are free from the neighboring sieve segments 2.2, 2.3. she but are in the direction of their own longitudinal axis - thus simultaneously in Direction of the axis of the impact rotor 1 - and thus perpendicular to one of the two end walls of the housing 4 extendable.

Die Mahlelemente 3.1, 3.2, 3.3, 3.4, 3.5 sind, wie man sieht, mit zahnartigen Elementen versehen, oder mit Leisten, die sich über deren gesamte Länge erstrecken. Die Länge beträgt in der Praxis beispielsweise zwei Meter. Das Gewicht ist entsprechend groß. Deshalb sind die Mahlelemente schwer handhabbar.The grinding elements 3.1, 3.2, 3.3, 3.4, 3.5 are, as you can see, with tooth-like Elements, or with strips that extend over their entire length extend. In practice, the length is two meters. The Weight is correspondingly large. That is why the grinding elements are heavy manageable.

Gemäß einem Gedanken der Erfindung sind die Mahlelemente 3.1, 3.2, 3.3, 3.4 und 3.5 in Längenabschnitte unterteilt. So weist beispielsweise ein Mahlelement 3.1, 3.2, 3.3, 3.4 und 3.5 zwei Längenabschnitte auf Werden die Mahlelemente 3.1, 3.2, 3.3, 3.4 und 3.5 wegen Verschleisses herausgenommen, um gegen neue ausgetauscht zu werden, so ist das Handhaben der unterteilten Längenabschnitte natürlich viel einfacher. Gemäß einem weiteren Gedanken der Erfindung sind die Mahlelemente 3.1, 3.2, 3.3, 3.4 und 3.5 an ihren Stirnseiten magnetisch, so daß ein Nordpol des einen Elementes einem Südpol des anderen gegenüberliegt und eine gewisse Verriegelung zwischen den beiden Längenabschnitten stattfindet. Der Magnetismus ist jedoch dabei derart bemessen, daß die Verriegelung beim Herausnehmen leicht lösbar ist, beispielsweise durch ruckartiges Herausziehen. Als Alternative kommt eine Klauenverbindung in Frage.According to an idea of the invention, the grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 divided into lengths. For example, a Grinding element 3.1, 3.2, 3.3, 3.4 and 3.5 two lengths on the Grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 due to wear taken out to be exchanged for new ones, that's it Handling the divided length sections of course much easier. According to Another idea of the invention is the grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 magnetic on their faces, so that a north pole of one Element faces one south pole of the other and a certain one Locking takes place between the two lengths. The However, magnetism is such that the locking when Removing is easy to solve, for example by jerky Pull out. An alternative is a claw connection.

Wie man sieht, sind die Mahlflächen der Mahlelemente 3.1 und 3.5 etwas anders gestaltet, als diejenigen der übrigen Mahlelemente 3.2, 3.3, 3.4. Sie sind nämlich leicht gekrümmt, um zusammen mit der Mantelfläche des Schlagrotors 1 einen Einzugsspalt für die ankommenden Hackschnitzel zu bilden.As you can see, the grinding surfaces of the grinding elements 3.1 and 3.5 are somewhat designed differently than those of the other grinding elements 3.2, 3.3, 3.4. she are namely slightly curved, together with the lateral surface of the Impact rotor 1 a feed gap for the incoming chips form.

Figur 2 zeigt die Verhältnisse etwas genauer. Dabei sind in Phantomlinien Siebsegment 2.1 und Mahlelement 3.2 dargestellt, und zwar sowohl im geschlossenen Zustand, d.h. die Mantelfläche des Schlagrotors 1 umhüllend, als auch im aufgeklappten Zustand, im welchen das Siebelement 2.1 praktisch horizontal verläuft.Figure 2 shows the situation somewhat more precisely. Are in phantom lines Sieve segment 2.1 and grinding element 3.2 shown, both in closed state, i.e. enveloping the outer surface of the impact rotor 1, as well as in the opened state, in which the screen element 2.1 runs practically horizontally.

Das Mahlelement 3.4 läßt sich als einziges der Mahlelemente 3.1, 3.2, 3.3, 3.4 und 3.5 auch in horizontaler Richtung verfahren, und zwar in der Figur nach links, d.h. vom Schlagrotor 1 hinweg. Gleichzeitig läßt sich ein Teil der Umfangswand 4.4, nämlich Wandabschnitt 4.4.1 in derselben Richtung verfahren, und zwar so weit, daß das Mahlelement 3.4 völlig aus dem Gehäuse 4 herausgefahren werden kann. Ist dies geschehen, so läßt sich der gesamte Schlagrotor ebenfalls zumindest um eine gewisse Strecke nach links verfahren bzw. komplett aus dem Gehäuse 9 entnehmen, was bei Reparatur- und Wartungsarbeiten hilfreich sein kann.The grinding element 3.4 can be the only one of the grinding elements 3.1, 3.2, 3.3, 3.4 and 3.5 also move in the horizontal direction, namely in the figure left, i.e. away from the impact rotor 1. At the same time, part of the Circumferential wall 4.4, namely wall section 4.4.1 in the same direction move, so far that the grinding element 3.4 completely from the Housing 4 can be moved out. If this has happened, the entire rotor also at least a certain distance to the left move or remove completely from the housing 9, what with repair and Maintenance work can be helpful.

In Figur 3 erkennt man wiederum Einzelheiten des Schlagzerspaners gemäß der Erfindung. Siebelement 2.1 mit daran fixiertem Mahlelement 3.1 ist jetzt deutlich erkennbar in die Horizontale umgeklappt. Zuvor wurden die Umfangswände 4.1 und 4.2 ebenfalls entfernt, beispielsweise ebenfalls durch Umklappen nach außen. In diesem Zustand läßt sich Mahlelement 3.1 leicht auszubauen, und es läßt sich ein neues, unverschlissenes Mahlelement leicht wieder einbauen. Dabei ist eine Spanneinrichtung 7 vorgesehen. Diese weist einen Spanngriff 7.1, eine Spannklaue 7.2 und eine Schwenkachse 7.3 auf. Die Klaue 7.2 umgreift einen Zapfen 3.1.1, der am Mahlelement 3.1 fixiert ist. Mit der Spanneinrichtung 7 läßt sich das Mahlelement 3.1 leicht und schnell am Siebsegment 2.1 fixieren. In Figure 3 you can again see details of the impact cutter according to the invention. Siebelement 2.1 with 3.1 attached grinding element is now folded down clearly recognizable into the horizontal. Previously, the Peripheral walls 4.1 and 4.2 also removed, for example, also by Fold outwards. In this state, grinding element 3.1 can be easily expand, and it is easy to use a new, unworn grinding element reinstall. A tensioning device 7 is provided. This points a clamping handle 7.1, a clamping claw 7.2 and a pivot axis 7.3. The claw 7.2 surrounds a pin 3.1.1, which is fixed to the grinding element 3.1. With the clamping device 7, the grinding element 3.1 can be easily and quickly fix to the sieve segment 2.1.

Das Verschwenken der Siebsegmente 2.1, 2.2, 2.3 und 2.4 kann auch pneumatisch oder hydraulisch erfolgen.The pivoting of the sieve segments 2.1, 2.2, 2.3 and 2.4 can also done pneumatically or hydraulically.

Die Siebelemente 2.1, 2.2, 2.3 und 2.4 umfassen im allgemeinen Schlitzbleche, die der Mantelfläche des Schlagrotors 1 unmittelbar zugewandt sind und parallel zu dieser verlaufen. Die Schlitze verlaufen dabei in Umfangsrichtung. Dies ist jedoch nicht zwingend der Fall. Im übrigen ist die Gestaltung der Siebfläche nicht Gegenstand der Erfindung.The screen elements 2.1, 2.2, 2.3 and 2.4 generally comprise Slotted plates that face the outer surface of the impact rotor 1 directly are and run parallel to this. The slots run in Circumferential direction. However, this is not absolutely the case. Otherwise, the Design of the screen surface is not the subject of the invention.

Claims (9)

Schlagzerspaner zum Zerspanen von Hackschnitzeln zu Spänen; 1.1 mit einem Schlagrotor (1) mit horizontaler Rotorwelle (1.1); 1.2 mit einer diesen umgebenden Hülle aus Siebsegmenten (2.1 bis 2.4) und Mahlelementen (3.1 bis 3.5); 1.3 die Siebsegmente (2.1 bis 2.4) und die Mahlelemente (3.1 bis 3.5) sind über den Rotorumfang abwechselnd angeordnet und lassen einen Abschnitt des Rotorumfangs für das Zuführen von Hackschnitzeln frei; 1.4 mit einem die Hülle umgebenden Gehäuse (4), umfassend zwei zur Rotorachse senkrecht verlaufende Stirnwände, eine Umfangswand (4.1, 4.2, 4.3, 4.4, 4.5) sowie einen Zuführstutzen (4.6) für die Hackschnitzel; 1.5 wenigstens einige der Siebsegmente (2.1 bis 2.4) sind um Achsen (I, II, III) schwenkbar, die parallel zur Rotorachse verlaufen; 1.6 wenigstens einige der Mahlelemente (3.1 bis 3.5) sind parallel zur Rotorachse sowie in Richtung ihrer eigenen Längsachse verfahrbar. Impact chipper for cutting wood chips into chips; 1.1 with a percussion rotor (1) with a horizontal rotor shaft (1.1); 1.2 with a surrounding shell of sieve segments (2.1 to 2.4) and grinding elements (3.1 to 3.5); 1.3 the sieve segments (2.1 to 2.4) and the grinding elements (3.1 to 3.5) are arranged alternately over the rotor circumference and leave a section of the rotor circumference free for feeding wood chips; 1.4 with a housing (4) surrounding the casing, comprising two end walls running perpendicular to the rotor axis, a peripheral wall (4.1, 4.2, 4.3, 4.4, 4.5) and a feed connector (4.6) for the wood chips; 1.5 at least some of the sieve segments (2.1 to 2.4) can be pivoted about axes (I, II, III) which run parallel to the rotor axis; 1.6 at least some of the grinding elements (3.1 to 3.5) can be moved parallel to the rotor axis and in the direction of their own longitudinal axis. Schlagzerspaner gemäß Anspruch 1, dadurch gekennzeichnet, daß wenigstens eines der Mahlelemente (3.1 bis 3.5) zusammen mit einem daran angrenzenden Siebsegment (2.1 bis 2.4) um die betreffende Schwenkachse verschwenkbar ist.Impact chipper according to claim 1, characterized in that at least one of the grinding elements (3.1 to 3.5) together with one adjoining sieve segment (2.1 to 2.4) around the relevant one Swivel axis is pivotable. Schlagzerspaner nach Anspruch 1 oder 2, gekennzeichnet durch die folgenden Merkmale: 3.1 ein Wandabschnitt (4.4.1) der Umfangswand (4.4) ist vom Schlagrotor (1) abfahrbar; 3.2 das im Bereich des abfahrbaren Wandabschnittes (4.4.1) befindliche Mahlelement (3.4) ist in derselben Richtung wie der Wandabschnitt (4.4.1) vom Schlagrotor (1) abfahrbar. Impact chipper according to claim 1 or 2, characterized by the following features: 3.1 a wall section (4.4.1) of the peripheral wall (4.4) can be moved away from the beating rotor (1); 3.2 the grinding element (3.4) located in the area of the removable wall section (4.4.1) can be removed from the impact rotor (1) in the same direction as the wall section (4.4.1). Schlagzerspaner nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß Teile der Umfangswand (4.1, 4.2, 4.3, 4.4 und 4.5) oder der beiden Stirnwände ausklappbar sind.Impact cutter according to one of claims 1 to 3, characterized characterized in that parts of the peripheral wall (4.1, 4.2, 4.3, 4.4 and 4.5) or the two end walls can be folded out. Schlagzerspaner nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß wenigstens eines der Mahlelemente (3.1 bis 3.5) in zwei oder mehrere Längenabschnitte unterteilt ist.Impact chipper according to one of claims 1 to 4, characterized characterized in that at least one of the grinding elements (3.1 to 3.5) is divided into two or more lengths. Schlagzerspaner nach Anspruch 5, dadurch gekennzeichnet, daß die einzelnen Längenabschnitte durch Magnetkraft aneinander ankoppelbar sind.Impact chipper according to claim 5, characterized in that the individual longitudinal sections can be coupled to one another by magnetic force are. Schlagzerspaner nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß sich die Schwenkachse (I, II, III) eines schwenkbaren Siebsegmentes (2.1 bis 2.4) im Bereich eines Mahlelementes (3.2, 3.3, 3.4) befindet.Impact chipper according to one of claims 1 to 6, characterized characterized in that the pivot axis (I, II, III) of a pivotable sieve segment (2.1 to 2.4) in the area of a Grinding element (3.2, 3.3, 3.4) is located. Schlagzerspaner nach Anspruch 7, dadurch gekennzeichnet, daß sich die betreffende Schwenkachse (I, II, III) radial außerhalb des betreffenden Mahlelementes (3.2, 3.3, 3.4) befindet.Impact chipper according to claim 7, characterized in that the relevant pivot axis (I, II, III) radially outside the relevant grinding element (3.2, 3.3, 3.4). Schlagzerspaner nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Siebsegmente (2.1 bis 2.4) durch hydraulische oder pneumatische Aktuatoren betätigbar sind.Impact cutter according to one of claims 1 to 8, characterized characterized in that the sieve segments (2.1 to 2.4) by hydraulic or pneumatic actuators can be actuated.
EP00108301A 1999-05-06 2000-04-14 Hammer chipper for chipping Expired - Lifetime EP1050391B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19920884A DE19920884C1 (en) 1999-05-06 1999-05-06 Impact cutter for comminuting chippings has rotor with alternating grill and hammer sections around periphery
DE19920884 1999-05-06

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EP1050391A2 true EP1050391A2 (en) 2000-11-08
EP1050391A3 EP1050391A3 (en) 2004-05-19
EP1050391B1 EP1050391B1 (en) 2006-10-18

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EP00108301A Expired - Lifetime EP1050391B1 (en) 1999-05-06 2000-04-14 Hammer chipper for chipping

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EP (1) EP1050391B1 (en)
AT (1) ATE342792T1 (en)
DE (2) DE19920884C1 (en)
ES (1) ES2272211T3 (en)
PL (1) PL193720B1 (en)

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WO2008157346A1 (en) 2007-06-15 2008-12-24 Black & Decker Inc. Hybrid impact tool

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CN1108875C (en) * 2000-10-10 2003-05-21 李宝君 Spiral type roller beater disintergrator
DE102007009658B3 (en) 2007-02-22 2008-10-02 Bruks Klöckner GmbH Holzhäckselmaschine
DE202007015635U1 (en) * 2007-11-09 2009-03-26 Komptech Gmbh Hoe
DE102012018074A1 (en) * 2012-09-13 2014-03-13 Hogha Gmbh Device for sorting wood chips
DE102013206449B4 (en) * 2013-04-11 2017-07-27 HAAS Holzzerkleinerungs- und Fördertechnik GmbH Apparatus for shredding general cargo
DE202016001917U1 (en) 2016-03-24 2017-05-26 B. Maier Zerkleinerungstechnik Gmbh crusher

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DE704853C (en) * 1937-08-24 1941-04-08 Gustloff Werke Siebhammermuehle
DE2140026A1 (en) * 1971-08-10 1973-02-22 Polysius Ag HAMMER CRUSHER
CH638694A5 (en) * 1979-01-05 1983-10-14 Kurt Gisiger Method for comminuting bulk material and device for carrying out the method
US4593862A (en) * 1983-11-26 1986-06-10 Inter-Wood Maschinen Gmbh & Co. Method for the manufacture of chips from mineral, vegetable or embrittled materials and apparatus for carrying out the method
US5062575A (en) * 1989-01-09 1991-11-05 Pennsylvania Crusher Corporation Comminutor with impact, shear and screening sections

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DE704853C (en) * 1937-08-24 1941-04-08 Gustloff Werke Siebhammermuehle
DE2140026A1 (en) * 1971-08-10 1973-02-22 Polysius Ag HAMMER CRUSHER
CH638694A5 (en) * 1979-01-05 1983-10-14 Kurt Gisiger Method for comminuting bulk material and device for carrying out the method
US4593862A (en) * 1983-11-26 1986-06-10 Inter-Wood Maschinen Gmbh & Co. Method for the manufacture of chips from mineral, vegetable or embrittled materials and apparatus for carrying out the method
US5062575A (en) * 1989-01-09 1991-11-05 Pennsylvania Crusher Corporation Comminutor with impact, shear and screening sections

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Publication number Priority date Publication date Assignee Title
WO2008157346A1 (en) 2007-06-15 2008-12-24 Black & Decker Inc. Hybrid impact tool

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Publication number Publication date
DE19920884C1 (en) 2000-04-13
ES2272211T3 (en) 2007-05-01
DE50013623D1 (en) 2006-11-30
PL339999A1 (en) 2000-11-20
EP1050391A3 (en) 2004-05-19
PL193720B1 (en) 2007-03-30
ATE342792T1 (en) 2006-11-15
EP1050391B1 (en) 2006-10-18

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