EP3323572B1 - Dechiqueteuse - Google Patents

Dechiqueteuse Download PDF

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Publication number
EP3323572B1
EP3323572B1 EP17450013.2A EP17450013A EP3323572B1 EP 3323572 B1 EP3323572 B1 EP 3323572B1 EP 17450013 A EP17450013 A EP 17450013A EP 3323572 B1 EP3323572 B1 EP 3323572B1
Authority
EP
European Patent Office
Prior art keywords
rotor
spacers
fixed
knife
discs
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.)
Active
Application number
EP17450013.2A
Other languages
German (de)
English (en)
Other versions
EP3323572A1 (fr
Inventor
Rudolf Eschlböck
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.)
Eschlbock - Maschinenbau GmbH
Original Assignee
Eschlbock - Maschinenbau 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 Eschlbock - Maschinenbau GmbH filed Critical Eschlbock - Maschinenbau GmbH
Priority to SI201730210T priority Critical patent/SI3323572T1/sl
Priority to PL17450013T priority patent/PL3323572T3/pl
Publication of EP3323572A1 publication Critical patent/EP3323572A1/fr
Application granted granted Critical
Publication of EP3323572B1 publication Critical patent/EP3323572B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
    • 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
    • B02C18/144—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with axially elongated knives
    • 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
    • B02C18/145—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/005—Tools composed of two or more rotating discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/08—Cutter blocks; Other rotary cutting tools in the shape of disc-like members; Wood-milling cutters
    • 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 present invention relates to a device for cutting wood comprising a plurality of rotor disks arranged on a rotor axis of a rotor, at least one knife carrier with a knife releasably attached to each rotor disk being provided and the rotor disks on the rotor axis with intermediate storage of spacers spaced apart and attached to each other.
  • a device for cutting wood comprising a plurality of rotor disks arranged on a rotor axis of a rotor, at least one knife carrier with a knife releasably attached to each rotor disk being provided and the rotor disks on the rotor axis with intermediate storage of spacers spaced apart and attached to each other.
  • Such a device is from the DE 20 2014 009 164 U1 known
  • Such devices for cutting wood are usually essentially drum-shaped cutting devices arranged in a housing, which are arranged on an axis, which axis is in turn driven by a motor to a uniform rotation.
  • the logs or branches or other wooden parts to be shredded with such a device are fed to the device for machining via a feed device, in particular a feed device, and the knives arranged on this device on a knife carrier come into engagement with the wood material to be shredded, as a result of which the wood closes Chips or nicks are chopped or crushed, which chips are in turn discharged from the device by means of a blower.
  • Such cutting devices have been known for a long time and have already been implemented in the most varied of embodiments or with the most varied of crushing devices. So describes the EP 1 413 410 A. a device for machining wood, in which a plurality of rotor disks are arranged on a rotor axis and the knife carriers are screwed to these rotor disks in such a way that the knives are inserted in grooves between the rotor disks. With such a device, it is almost impossible to replace the knives in the event of wear or damage, or should wooden components become wedged in the knife drum or damage a part of the drum, replace or replace individual parts of the drum without long downtimes of the device in To have to buy.
  • a shredding device for wood has become known in which two diametrically opposed knife carriers are arranged on two disks arranged on a hub, which knife carriers are additionally fixed to both disks or rotor disks and define the distance between the two disks.
  • a cutting head for wood chopping machines which is essentially cylindrical.
  • Such a cutting head is formed from disk-shaped segments, which are essentially in an axially aligned Are held. On these disc-shaped segments are in scope Knife holder or knife fixed, which should come into engagement with the shredded material.
  • Knife holder or knife fixed, which should come into engagement with the shredded material.
  • EP 1362639 A1 a device for comminuting material with a comminuting rotor, which has turntables arranged in a rotationally fixed manner on a drive shaft, which have pointed cutting teeth, the cutting teeth being arranged in circumferential recesses of the carrier disks.
  • Such a device is intended to achieve interlocking cutting marks during the cutting of wood, which is to be achieved by keeping the distance between two successive carrier disks as small as possible.
  • the present invention now aims to provide a device for machining wood, with which it is possible to minimize downtimes as a result of damage or relocation of the device as far as possible and which also has a simple structure in which all Parts of the device are easily accessible and replaceable for maintenance personnel.
  • the device according to the invention is essentially characterized in that in each case a releasably fixed spacer is provided between two rotor disks releasably fixed on the rotor axis, that each spacer is arranged as a substantially tubular element with in its two end regions over a tube diameter extending fastening flanges and that at least the rotor disks are fixed to the rotor axis by means of clamping elements.
  • each spacer is designed as an essentially tubular element with fastening flanges arranged in its two end regions and extending over a tube diameter makes it possible to connect the individual rotor disks via the spacers and thus to form a defined structured device for machining.
  • the spacers as essentially tubular elements the rotor axis is tightly enclosed, so that the penetration of wood chips, branches and the like into the interior between the rotor axis and the spacer or the interior between the rotor axis and rotor disks is reliably prevented, so that accidental damage and contamination of the rotor axis by wooden parts Security is neglected.
  • the rotor disks can be releasably attached to the axis of rotation, which is both immovable and unsolvable in the case of the loads occurring during operation, without the need to fix individual elements of the device for machining on the Axis, with means penetrating the axis, for example, which would mean weakening them, would be required. Since all the elements are detachably connected to one another, the device for cutting and replacing damaged or worn parts can be easily disassembled without, for example, welding seams having to be cut open or new elements having to be welded in. By loosening screws and nuts or tightening them, for example, all elements of the machining device can be removed, serviced, replaced and reinstalled.
  • the device is designed such that both the rotor disks and the spacers are fixed on the rotor axis by means of clamping elements, a further safeguard against displacement or rotation of the elements fixed on a rotor axis, namely the Rotor disks and the spacer guaranteed.
  • the spacers at a defined distance from the rotor axis, so that even if indentation of spacer elements, for example due to a penetrating stem, impairment of the axis of rotation and in particular grinding of parts of the device on the axis of rotation also occur Security is neglected.
  • the device is designed such that each spacer is fixed to the rotor axis in an end region by means of clamping elements.
  • each spacer is formed with increased material thickness in at least one of its end regions, it is ensured that a sufficiently stable counter bearing is provided for the clamping elements provided in this region.
  • the spacer element can be designed in such a way that the area of increased material thickness on the adjacent rotor disk is fixed by wedging or clamping and screwing is not required in this area.
  • the device for machining is designed so that the clamping elements are selected from clamping sets or friction bushes, conventional conventional clamping elements can be used to fix both the spacer elements and the rotor disks on the axis of rotation, so that the technical outlay for producing the device for machining can be optimized and, moreover, a stable and less susceptible to failure solution can be provided.
  • the device In order to reliably prevent any ingress of contaminants, in particular wood chips or branches, in the area of the outermost rotor disks, the device is developed in such a way that each rotor disk arranged at the end on the rotor axis by means of a detachably attached to the rotor disk and the rotor axis essentially without Game-encompassing cover plate is provided.
  • the fact that the cover disks are arranged around the rotor axis essentially without play ensures that the entry of dust, moisture and the like into the interior between the rotor axis of rotation and the spacer is also reliably prevented, as a result of which the service life of the device can be increased. Furthermore, when individual elements are exchanged, it is ensured that, for example, screws cannot be loosened due to contamination or that clamping elements cannot be loosened.
  • each rotor disk is provided with two knife carriers which are releasably attached to it at a distance of 180 °.
  • a plurality of knife carriers can also be fixed to each rotor disk, it always having to be ensured that the knife carriers are arranged uniformly spaced from one another on the circumference of the rotor disks.
  • the device is designed such that at least two rotor disks are fixed on the rotor axis and that the knife carriers on adjacent rotor disks are offset from one another.
  • the procedure is preferably such that the knife carriers of adjacent rotor disks attached to the rotor disks are always arranged offset from one another and that as many knife carriers as possible are arranged over the length of the device for machining in order to be as possible as possible To be able to provide efficient and rapid cutting of wood to be shredded or branches or trunks.
  • each rotor disk has a recess, in particular a sack-shaped recess, in its area leading to the knife holder.
  • a sack-shaped recess which leads to the knife carrier, ensures that the chips formed are transported away safely and quickly, so that laying or an undesired accumulation of chips in the area of the knives is reliably prevented.
  • the device is designed such that all the elements forming the device for machining are detachable, in particular screwed together and / or clamped together, a device for machining is created in which all elements, including Knives, knife carriers, spacer elements, rotor disks as well as cover elements are releasably connected to one another, in particular are screwed together, which makes extremely simple replacement of individual worn or damaged elements possible is guaranteed.
  • individual rotor disks can additionally be attached to the rotor axis or individual rotor disks and spacers can be removed from the rotor axis if the device has to be adapted or adapted in accordance with existing requirements. All of this work is accomplished in the device according to the invention without welding, cutting or the like having to be carried out, only by loosening detachable connections, such as screws, clamping jaws and the like.
  • the device for machining with spacers, which are arranged in the immediate vicinity of the rotor axis and the individual, clearly spaced rotor disks, it is ensured that an easily constructed device is made available, from which essentially all elements are easily accessible and are therefore easy to replace or maintain. Furthermore, the risk of jamming of wood in the device is significantly reduced by such a construction. Such a device makes it possible to significantly reduce the downtimes when cutting wood, in particular tree trunks or large branches.
  • FIG. 1 Show in these Fig. 1 a section through a device for cutting wood according to the invention and Fig. 2 a partial perspective view through the device of Fig. 1 ,
  • Fig. 1 is a section through the knife drum 1 of a device for cutting wood, in particular tree trunks and / or branches shown and in Fig. 2 a perspective view of the same section is shown.
  • a plurality of rotor disks 3 are detachably fixed on a rotor axis 2.
  • the rotor disks 3 are fixed here by means of clamping elements 4, which are formed from clamping jaws in the embodiment shown.
  • clamping elements 4 which are formed from clamping jaws in the embodiment shown.
  • a spacer 5 is fixed between each two rotor disks 3.
  • the spacers 5 are in this case designed as essentially tubular elements which are provided with fastening flanges 6 at their end regions facing the rotor disks 3 in order to achieve a releasable fixing, in the present case one To enable screwing by means of screws 7 and nuts 8, between the rotor disks 3 and the spacers 5.
  • the fastening flanges 6 are designed in such a way that they clearly protrude beyond the tube diameter of the spacers 5 in order to enable a secure fixing and in particular an arrangement of a sufficient number of fastening elements (7, 8).
  • they are also fixed on at least one end region by clamping elements 4 on the rotor axis 2.
  • the spacers in this end region 9 are formed with a greater material thickness.
  • a cover disk 10 is provided on each terminal rotor disk 3 in order in particular to prevent contaminants from penetrating into the intermediate space between the rotor axis 2 and the spacers 5.
  • the cover disk 10 is designed such that it encompasses the rotor axis 2 essentially without play and is secured to the adjacent rotor disk 3 by means of releasable fixing elements, such as screws 7 and nuts 8.
  • the rotor disks 3 have a significantly larger radial extension in comparison to the spacers 5 and each rotor disk 3 has at least one sack-like recess 12 in the region of its outer circumference 11.
  • the sack-like recess 12 is arranged such that it leads a knife carrier 13 in the direction of rotation of the device.
  • the knife carriers, as well as knives 14 releasably attached to them, and wear disks 15 arranged to protect knives 14 and knife carriers 13 are designed in a manner known per se, these elements of the device also being detachably attached to the rotor disks 3, in particular by means of screws 7 and nuts 8 are set.
  • two knife carriers 13 are releasably attached to each rotor disk 3, the knife carriers being offset by 180 ° in the presence of two knife carriers 13 on a rotor disk. If more than two knife carriers 13 are provided on a rotor disk, these are to be arranged evenly spaced around the circumference 11 of the rotor disk 3. In order, in particular, to prevent an uneven load on the device during operation, the knife carriers 13 of adjacent rotor disks are further offset from one another, preferably arranged so that they are arranged as evenly as possible over the entire circumference 11 of all rotor disks 3.
  • each element can be easily serviced and repaired and, moreover, the device can, if necessary, be added by adding further spacers 5 and rotor disks 3 or removal of these elements can be adapted to existing operating requirements.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Food Science & Technology (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Claims (10)

  1. Dispositif pour déchiqueter du bois, comprenant une multiplicité de disques de rotor (3) disposés sur un axe de rotor (2) d'un rotor, dans lequel il est prévu sur chaque disque de rotor (3) au moins un porte-couteau (13) sur lequel un couteau (14) est fixé de manière amovible, et dans lequel les disques de rotor (3) sont disposés sur l'axe de rotor (2) en étant espacés les uns des autres avec des entretoises (5) intercalées, et sont fixés les uns aux autres, caractérisé en ce qu'une entretoise (5) respective fixée de manière amovible est prévue entre deux disques de rotor (3) fixés de manière amovible à l'axe de rotor (2), en ce que chaque entretoise (5) est formée comme un élément sensiblement tubulaire avec des brides de fixation (6) qui sont disposées dans ses deux zones d'extrémité et s'étendent sur un diamètre de tube, et en ce qu'au moins les disques de rotor (3) sont fixés sur l'axe de rotor (2) à l'aide d'éléments de serrage (4).
  2. Dispositif selon la revendication 1, caractérisé en ce que les disques de rotor (3) comme les entretoises (5) sont fixés sur l'axe de rotor (2) à l'aide d'éléments de serrage (4).
  3. Dispositif selon la revendication 2, caractérisé en ce que chaque entretoise (5) est fixée sur l'axe de rotor (2) dans une zone d'extrémité à l'aide d'éléments de serrage (4).
  4. Dispositif selon la revendication 1, 2 ou 3, caractérisé en ce que chaque entretoise (5) est pourvue dans l'une au moins de ses zones d'extrémité d'une épaisseur de matériau plus grande (9).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les éléments de serrage (4) sont choisis parmi des ensembles tendeurs ou des manchons de friction.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que chaque disque de rotor (3) disposé à l'extrémité sur l'axe de rotor (2) est pourvu d'un disque (10) de recouvrement qui est fixé de manière amovible sur le disque de rotor (3) et qui enserre l'axe de rotor (2) sensiblement sans jeu.
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que chaque disque de rotor (3) est pourvu de deux porte-couteau (13) fixés sur lui de manière amovible avec un espacement de 180°.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce qu'au moins deux disques de rotor (3) sont fixés sur l'axe de rotor (2) et en ce que les porte-couteau (13) de disques de rotor (3) voisins sont décalés les uns par rapport aux autres.
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que chaque disque de rotor (3) présente dans sa zone située en avant d'un porte-couteau (13) un creux (12), en particulier un creux en forme de sac (12).
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que tous les éléments formant le dispositif de déchiquetage sont fixés de manière amovible, en particulier par vissage entre eux et/ou par serrage mutuel.
EP17450013.2A 2016-11-18 2017-11-15 Dechiqueteuse Active EP3323572B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201730210T SI3323572T1 (sl) 2016-11-18 2017-11-15 Naprava za iverenje lesa
PL17450013T PL3323572T3 (pl) 2016-11-18 2017-11-15 Przyrząd do skrawania drewna na wióry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATGM278/2016U AT15563U1 (de) 2016-11-18 2016-11-18 Vorrichtung zum Zerspanen von Holz

Publications (2)

Publication Number Publication Date
EP3323572A1 EP3323572A1 (fr) 2018-05-23
EP3323572B1 true EP3323572B1 (fr) 2020-01-01

Family

ID=60996879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17450013.2A Active EP3323572B1 (fr) 2016-11-18 2017-11-15 Dechiqueteuse

Country Status (7)

Country Link
EP (1) EP3323572B1 (fr)
AT (1) AT15563U1 (fr)
DK (1) DK3323572T3 (fr)
ES (1) ES2781950T3 (fr)
HU (1) HUE049037T2 (fr)
PL (1) PL3323572T3 (fr)
SI (1) SI3323572T1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114082494A (zh) * 2021-11-25 2022-02-25 重庆隆鑫通航发动机制造有限公司 一种碎枝机用切削装置及碎枝机

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR974153A (fr) * 1942-08-07 1951-02-19 Machine à tronçonner les bois
FR2256807A1 (en) * 1974-01-07 1975-08-01 Merzeau Jean Alain Woodworking tool forming slots - has multiple sets of toothed rotary cutters and spacers altered to vary spacing of slots
DE2618254A1 (de) * 1976-04-27 1977-11-10 Jenz Masch & Fahrzeug Hans Messertrommel, insbesondere fuer hackmaschinen zur zerkleinerung von hoelzern und abfaellen
US4151869A (en) * 1977-11-21 1979-05-01 Michigan Knife Co. Knife assembly for profile cutting head
US5372316A (en) * 1992-04-27 1994-12-13 Tramor, Inc. Waste processing machine
DE102006012117A1 (de) * 2006-03-14 2007-09-20 Ahwi Maschinenbau Gmbh Zerkleinerungsrotor zur Herstellung von Hackschnitzel
DE102007001864A1 (de) * 2007-01-12 2008-07-17 Kennametal Inc. Fräsvorrichtung
WO2009040490A1 (fr) * 2007-09-24 2009-04-02 Palm-Organics Global Ltd Procédé et appareil pour réduire les tiges de palmier en biomasse
DE102008013232A1 (de) * 2008-03-07 2009-09-17 Pallmann Maschinenfabrik Gmbh & Co Kg Vorrichtung zum Zerkleinern von Aufgabegut mit einem Rotor
AT508095B1 (de) * 2009-03-27 2011-01-15 Eschlboeck Maschb Gmbh Vorrichtung zum zerkleinern von holz
EP2434861A4 (fr) * 2009-05-28 2016-09-28 Gilles Denis Coupe-broussailles
JP5464971B2 (ja) * 2009-10-28 2014-04-09 株式会社名南製作所 セパレーテッドスカーフ面の形成方法
FI122766B (fi) * 2010-02-17 2012-06-29 Kesla Oyj Hakkurin roottori
DE202014009164U1 (de) * 2014-11-19 2016-02-22 Doppstadt Familienholding Gmbh Trommel für eine Zerkleinerungsvorrichtung, insbesondere einen Exakthacker

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
ES2781950T3 (es) 2020-09-09
SI3323572T1 (sl) 2020-06-30
AT15563U1 (de) 2018-01-15
DK3323572T3 (da) 2020-04-06
PL3323572T3 (pl) 2020-07-13
EP3323572A1 (fr) 2018-05-23
HUE049037T2 (hu) 2020-09-28

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