EP3789169B1 - Hache-bois - Google Patents

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Publication number
EP3789169B1
EP3789169B1 EP20193729.9A EP20193729A EP3789169B1 EP 3789169 B1 EP3789169 B1 EP 3789169B1 EP 20193729 A EP20193729 A EP 20193729A EP 3789169 B1 EP3789169 B1 EP 3789169B1
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EP
European Patent Office
Prior art keywords
coupling
screen basket
chipping machine
holding element
wood chipping
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
EP20193729.9A
Other languages
German (de)
English (en)
Other versions
EP3789169A1 (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.)
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Publication date
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Publication of EP3789169A1 publication Critical patent/EP3789169A1/fr
Application granted granted Critical
Publication of EP3789169B1 publication Critical patent/EP3789169B1/fr
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • 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
    • B27L11/002—Transporting devices for wood or chips
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material

Definitions

  • the present invention relates to a wood chipper with a chipping drum and at least one screen basket that can be displaced along an outer circumference of the chipping drum, the wood chipping machine having at least one drive with a drive shaft and at least one drive device for pivoting the screen basket out of or into its working position, as well as a method for pivoting a screen basket of a wood chipper, which can be displaced along an outer circumference of a chipper drum, out of or into its working position, the wood chipper being driven by at least one drive with a drive shaft and the screen basket being pivoted out of its or into its working position about its longitudinal axis.
  • Wood chippers have been known for many years and are used to chop up tree trunks and/or wood from bushes or green waste as quickly and comprehensively as possible.
  • the essential elements of such a wood chipping machine are the chipping rotor, on which a plurality of chopping knives are arranged, in particular on the circumference thereof, and optionally a counter-cutting tool which interacts with these chopping knives and is arranged on the housing of the wood chipping machine. If such a wood chipper logs or the branches or trunks of the bushes are fed via a collection unit, they are chopped up in the wood chipper to chips or chips.
  • the length or size of the shavings or shavings produced with such a wood chipper depends on the one hand on the projection of the individual chopping knives and on the other hand on the feed rate of the wood into the wood chipper. It is obvious that when a wood chipper is operated in this way, it is necessary to get inside the machine at certain intervals, for example to replace or sharpen the chopping knives or to check the knife protrusion or to clean or maintain the machine. On the other hand, it is also self-evident that the chips produced with the wood chipper are not of the same size, but have a certain size distribution.
  • such wood chippers In order to ensure that the wood chips produced can be classified according to their size and to have safe and reliable access to the inside of the wood chipper, such wood chippers usually have screen baskets, with which the wood chips can be classified into different sizes on the one hand and on the other hand an unobstructed view of the knives is ensured and it is therefore possible to recognize when access to the machine is required.
  • the machine housing To gain access to the interior of the wood chipper, the machine housing must be opened and a specialist must be able to access the interior of the machine.
  • This opening of the housing is carried out in a favorable manner by pivoting the screen basket, which extends over approximately half the circumference of the housing of the wood chipper.
  • the pivoting of such screen baskets which are made of solid metal, has also been known for a number of years and the most diverse technical solutions for how such a shifting can be effected have been described in the art.
  • an adjustable screening device for material reduction has become known, in which, in addition to crushing the material with the aid of chopping knives and hammers, the crushed material is screened, the screen being driven in a reciprocating motion for efficient screening.
  • a blade cutting mill has become known, in particular for grinding spices, which has a sieve ring in which a blade rotor is driven in rotation and, in addition, the sieve ring is also driven in rotation.
  • a device for sorting wood chips which has a drive unit with which the screen basket of the device can be displaced or opened and closed.
  • this drive unit which is different from the drive of the wood chipping machine, the screen basket is moved from its operating position to a removal or cleaning position and vice versa.
  • Such a device is relatively bulky and technically complex, since the drive for the screen basket is articulated on the outside of the screen basket, thus significantly increasing the external dimensions of the machine.
  • a chopping machine can also be seen in which a connecting link is provided on the outer circumference of the sieve basket for moving the sieve basket of the chopping machine, along which the sieve basket can be pivoted from its operating position into, for example, the removal or cleaning position with the aid of a separate pivoting mechanism and vice versa .
  • the DE 20 2016001917U discloses the preamble of the main claim.
  • the present invention now aims to provide a wood chipper, as is known in the prior art, in which it is possible to construct the displacement device for the sieve basket in a small construction and with the elements required for chipping wood or trunks to be combined in such a way that a device which is as simple and compact as possible can be made available.
  • the wood chipper according to the invention is essentially characterized in that a fastening element of the filter basket is fixed to a holding element that encompasses one end of the drive shaft of the wood chipper and is mounted rotatably relative to the drive shaft, that at least one is inserted both in the holding element and in at least one in a coupling element that can be coupled in is provided in an end face of the drive shaft facing the holding element, and that a drive device for the sieve basket that is different from the drive of the wood chipper is formed in the holding element.
  • a fastening element of the screen basket is fixed to a holding element that encompasses one end of the drive shaft of the wood chipper and is mounted rotatably relative to the drive shaft, and at least one coupling element is provided, which is formed both in the holding element and in at least one end face of the drive shaft that faces the holding element recess can be coupled and finally a drive device for the screen basket that is different from the drive of the wood chipper is formed in the holding element, it is possible by coupling the coupling element in such a way that the drive device for the screen basket is coupled to the holding element to cause the screen basket to pivot, without having to arrange a separate, large-scale drive on the outside of the screen basket.
  • Such a device which interacts in particular with a front end of the drive shaft of the wood chipper, is extremely compact in comparison to conventional solutions and, moreover, does not increase the outer circumference of the wood chipper.
  • the drive device provided in the holding element for the screen basket can be extremely small, since its only task is to pivot the screen basket into and out of the working position and only has to be used in the case of cleaning or maintenance of the wood chipper and here only has to be able to pivot the screen basket by a maximum of 180°, as a result of which the dimensioning of the drive can be significantly reduced compared to conventional drives, with which, for example, the screen basket has to be lifted and shifted in its entirety.
  • the coupling element is formed from at least two coupling pins fixed in a guide plate and a coupling screw that penetrates centrally through both the guide plate and a cover of the holding element, it is possible to provide an extremely simple design of a coupling , which can be coupled into either the holding element or the drive shaft by means of pins.
  • the guide pins being fixed in a guide plate, in particular being immovably fixed, they can be correctly positioned in advance, in particular in the longitudinal direction of the drive shaft of the wood chipper, and the coupling process can be carried out either by moving the guide plate and thus the pins in the direction of the axis of the drive shaft of the Chopping drum or in the direction away from the axis of the axis of the chopping drum.
  • the coupling element has three coupling pins arranged at the corners of an equilateral triangle, with which device a particularly stable and secure type of coupling can be achieved and in particular a twisting of the pins during the pivoting of the screen basket, where one is not inconsiderable force is applied to the pins can be avoided since the screen basket has a not inconsiderable weight.
  • the invention is further developed in such a way that for an engagement of the coupling pins of the coupling element blind holes are made in the end face of the drive shaft and in the cover of the holding element Through holes are formed.
  • the coupling pins are inserted through these through holes, thereby allowing the support member to pivot with respect to the drive shaft of the wood chipper and thus a pivoting of the screen basket coupled to the holding element out of its working position or into the maintenance position or back is achieved.
  • the displacement of the guide plate and the coupling pins is carried out by means of a coupling screw via a threaded connection.
  • a coupling screw via a threaded connection.
  • the drive device for moving the screen basket is essentially designed in such a way that it has at least one worm wheel and one worm, that the worm wheel can be urged to rotate about the coupling screw and that the coupling pins secure the cover for pivoting the screen basket the holding plate are arranged penetrating.
  • a worm wheel is actuated by means of a worm and thus a pivoting or rotation by a maximum of 180 ° of the entire cover and thus of the screen basket fixed to the cover.
  • a particularly simple device is designed in such a way that the worm is designed to interact with an external toothing of the worm wheel and that the worm has a free end designed to interact with any drive device.
  • the worm is designed here for cooperation with an external toothing of the worm wheel and also for cooperation with any desired drive device, with a percussion drill or an impact wrench, for example, being able to be used as the drive device. Due to the bearing of the worm wheel around the coupling screw, it is imperative that the coupling pins also penetrate the worm wheel, whereby, according to a preferred development, they are held in the worm wheel so that they can rotate but can be displaced in the axial direction.
  • the worm wheel can advantageously be designed or provided with a sleeve or thickening having a greater thickness than the worm wheel.
  • slide bearings are preferably provided between the holding element and the drive shaft of the wood chipper, which facilitate radial movement of the screen basket in relation to the axis of the drive shaft.
  • the screen basket can also be formed from a plurality of screen surfaces that can be at least partially displaced relative to one another, in particular by manual actuation no need to fear during pivoting or while the wood chipper is working.
  • the screen basket can also be formed from a plurality of screen surfaces that can be at least partially displaced relative to one another, in particular by manual actuation no need to fear during pivoting or while the wood chipper is working.
  • these can have different or the same mesh diameter and, for example, by shifting and fixing the screen surfaces to one another, the size of the through-holes can be varied be able.
  • the invention further relates to a method for pivoting a screen basket of a wood chipper relative to the chipping drum, which method is essentially characterized in that a fastening element of the screen basket is connected to a holding element which encompasses one end of the drive shaft of the wood chipper and is mounted rotatably relative to the drive shaft, that the holding element is pivoted with a drive device formed from a worm wheel mounted rotatably about a coupling screw and a worm, with the worm wheel penetrating and a guide plate penetratingly fixed coupling pins of a coupling element being raised by rotating a coupling screw into a position penetrating a cover of the holding element for pivoting the screen basket .
  • the procedure according to the invention can be such that when the wood chipper is in operation, the coupling is displaced in such a way, in particular by means of the coupling screw, that the coupling pins engage in the end face of the drive shaft of the wood chipper, as a result of which the coupling pins have been disengaged from the strainer basket holding member and the strainer basket cannot be pivoted during operation of the wood chipper.
  • a freely rotatably mounted coupling screw in a guide plate is actuated and the coupling pins are disengaged from the drive shaft of the wood chipper and engaged with the retaining element for the sieve basket, whereupon by actuating the further drive device, in particular the worm and the worm wheel, for example again with a percussion drill, the screen basket can be pivoted from its working position into a maintenance position or back into the working position.
  • a part of a wood chipper is shown schematically at 1, the chipper drum being removed from this wood chipper 1.
  • a pivotable screen basket 2 is provided along the outer circumference of the chipper drum (not shown), which screen basket 2 is arranged to be pivotable about the longitudinal axis, in particular the drive shaft 3 of the wood chipper 1 .
  • This screen basket 2 is here on an in 1 holding element 4 not shown in its entirety fixed to its pivoting about the drive shaft 3 of the wood chipper 1.
  • the screen basket 2 is formed from a plurality of screen surfaces 5, wherein it is in 1 illustrated embodiment is formed in at least two layers, the two layers lying one on top of the other having different widths of the passage elements or machine widths.
  • the sieve surfaces 5 are arranged in a peripheral frame 6 and are also designed to strike a housing of the wood chipper 1 (not shown).
  • the holding element 4 here has a drive device 7 for moving the screen basket 2, which drive device 7 is formed from a worm wheel 8 and a worm 9, which worm 9 can be set in rotation, for example with a percussion drill (not shown).
  • the worm wheel 8 and the worm 9 are covered during operation by a cover 10 which is in particular firmly connected to a fastening element 11 for the sieve basket 2 in order to ensure rotation of the sieve basket 2 around the axis of the shaft 3 of the wood chipper 1.
  • the holding device 4 in particular the part of the holding device 4 required to drive the pivoting of the screen basket 2, is in 2 and 3 shown in more detail.
  • the holding device 4 has a coupling element 12, which coupling element 12 consists of coupling pins 14 fixed in a guide plate 13, which coupling pins 14 can be moved together with the guide plate 13 by actuating the coupling screw 15, which is freely rotatably mounted in the guide plate 13 in particular, in the direction of the arrow 16 can be raised or lowered.
  • the coupling element 12 is shown in its lowered position, in which the coupling pins 14 engage in blind holes 17, which are formed in an end face 18 of the drive shaft 3 of the wood chipper 1.
  • the coupling pins 14 do not engage in the through holes 19, which are formed in the cover 10 of the holding element 4, and the worm wheel 8 of the drive device 7 is rotated when the wood chipper 1 is actuated, i.e. when the drive shaft 3 also rotated, such that a power transmission to the holding device 4 does not take place and thus a displacement or pivoting of the screen basket 2 of the wood chipper 1 is not possible and the screen basket 2 is held in its closed working position.
  • the worm wheel 8 of the drive device 7 is, as is shown schematically in 2 can be seen, in this case a corresponding sleeve 20, which in turn is mounted in the cover 10 of the holding element 4 rotated.
  • the coupling screw 15 is set in rotation, for example using a percussion drill, and the guide plate 13 together with the coupling pins 14 are disengaged from the drive shaft 3 of the wood chipper 1 by removing the coupling pins 14 from the blind holes 17, formed in the end face 18 of the drive shaft 3, as shown in 3 is shown.
  • the coupling pins 14 With this displacement of the coupling pins 14 in the direction of the arrow 21, the coupling pins are pushed through the cover 10 of the holding device 4 and are now in engagement with the through-holes 19 which are formed in the cover element 10.
  • the holding device 4 is set in rotation according to the arrow 22 and the Screen basket 2 pivoted from its operating position to an open position.
  • the connection of the screen basket 2 with the holding element 4 is here in the 2 and 3 Not shown. However, it must be such that the sieve basket 2 is forced to be carried along when the holding element 4 is pivoted.
  • the holding element 4 is in this case the drive shaft 3 of the wood chipper 1 arranged encompassing, as is the 1 can be seen, wherein between the holding element 4 and the drive shaft 3 in particular plain bearings are provided in order to ensure the lowest possible friction pivoting of the holding element 4 in relation to the drive shaft 3.
  • both the displacement of the coupling screw 15 and the drive of the worm 9 can be achieved with any commercially available, small-sized motor, such as a drill or the like, since an excessive driving force is required with this type of training is not required.
  • the displacement of the guide plate 13 by means of the coupling screw 15 can also be performed manually since this element is small and light.
  • the pivoting of the holding element 4 relative to the drive shaft 3 of the wood chipper 1 is also possible relatively easily due to the slide bearings which facilitate pivoting of the holding element 4 and are provided between the drive shaft 3 and the holding element 4 .
  • the entire device is significantly smaller than the devices known in the prior art and in particular does not increase the size of the wood chipper 1 in the radial direction, but only slightly lengthens the wood chipper 1 along the axial direction of the drive shaft 3 .

Claims (10)

  1. Déchiqueteuse à bois (1) comprenant un tambour déchiqueteur, ainsi qu'au moins un panier tamis (2) apte à être déplacé le long d'un pourtour extérieur du tambour déchiqueteur, dans laquelle la déchiqueteuse à bois (1) présente au moins un entraînement comprenant un arbre d'entraînement (3), et au moins un dispositif d'entraînement (7) pour un pivotement du panier tamis (2) depuis sa position de travail ou dans celle-ci, caractérisé en ce qu'un élément de fixation (11) du panier tamis (2) est fixé à un élément de retenue (4) entourant une extrémité de l'arbre d'entraînement (3) de la déchiqueteuse à bois (1) et monté à rotation par rapport à l'arbre d'entraînement (3), qu'il est prévu au moins un élément de couplage (12) apte à être accouplé à la fois dans l'élément de retenue (4) et dans au moins un évidement formé dans une surface frontale (18) de l'arbre d'entraînement (3) tournée vers l'élément de retenue (4), et que dans l'élément de retenue (4), est agencé un dispositif d'entraînement (7) différent de l'entraînement de la déchiqueteuse à bois (1) pour le panier tamis (2).
  2. Déchiqueteuse à bois (1) selon la revendication 1, caractérisée en ce que l'élément de couplage (12) est formé d'au moins deux broches de couplage (14) fixées dans une plaque de guidage (13) ainsi que d'une vis de couplage (15) traversant de manière centrale à la fois la plaque de guidage (13) et un couvercle (10) de l'élément de retenue (4).
  3. Déchiqueteuse à bois (1) selon la revendication 2, caractérisée en ce que l'élément de couplage (12) comporte trois broches de couplage (14) disposées aux angles d'un triangle équilatéral.
  4. Déchiqueteuse à bois (1) selon l'une des revendications 1, 2 ou 3, caractérisée en ce que pour un engagement des broches de couplage (14) de l'élément de couplage (12), des trous borgnes (17) sont agencés dans la surface frontale (18) de l'arbre d'entraînement (3) et des trous de passage (19) dans le couvercle (4) de l'élément de retenue (4).
  5. Déchiqueteuse à bois (1) selon l'une des revendications 1 à 4, caractérisée en ce que la plaque de guidage (13) et les broches de couplage (14) sont agencées de manière à pouvoir être déplacées par une liaison filetée au moyen de la vis de couplage (15).
  6. Déchiqueteuse à bois (1) selon l'une des revendications 1 à 5, caractérisée en ce que le dispositif d'entraînement (7) pour le déplacement du panier tamis (2) présente au moins une roue à vis sans fin (8) et une vis sans fin (9), que la roue à vis sans fin (8) est apte à être contrainte pour une rotation autour de la vis de couplage (15), et que pour un pivotement du panier tamis (2), les broches de couplage (14) sont disposées en traversant le couvercle (10) de la plaque de retenue.
  7. Déchiqueteuse à bois (1) selon la revendication 6, caractérisée en ce que la vis sans fin (9) est agencée pour une coopération avec une denture extérieure de la roue à vis sans fin (8), et que la vis sans fin (9) présente une extrémité libre agencée pour une coopération avec un dispositif d'entraînement quelconque.
  8. Déchiqueteuse à bois (1) selon l'une des revendications 1 à 7, caractérisée en ce que des paliers lisses sont prévus entre l'élément de retenue (4) et l'arbre d'entraînement (3) de la déchiqueteuse à bois (1).
  9. Déchiqueteuse à bois (1) selon l'une des revendications 1 à 8, caractérisée en ce que le panier tamis (2) est formé d'une multiplicité de surfaces de tamis (5) aptes à être déplacées au moins partiellement les unes par rapport aux autres, en particulier aptes à être déplacées les unes par rapport aux autres par actionnement manuel, lesquelles surfaces de tamis (5) sont fixées à un châssis circonférentiel fixé conjointement à l'élément de retenue (4).
  10. Procédé pour le pivotement d'un panier tamis (2) d'une déchiqueteuse à bois (1) apte à être déplacé le long d'un pourtour extérieur d'un tambour déchiqueteur depuis sa position de travail ou dans celle-ci, dans lequel la déchiqueteuse à bois (1) est entraînée par au moins un entraînement comprenant un arbre d'entraînement (3), et le pivotement du panier tamis (2) depuis sa position de travail ou dans celle-ci est provoqué par un dispositif d'entraînement (7) différent de l'entraînement de la déchiqueteuse à bois (1), caractérisé en ce qu'un élément de fixation (11) du panier tamis (2) est relié à un élément de retenue (4) entourant une extrémité de l'arbre d'entraînement (3) de la déchiqueteuse à bois (1) et monté à rotation par rapport à l'arbre d'entraînement (3), qu'on fait pivoter l'élément de retenue (4) avec un dispositif d'entraînement (7) formé d'une roue à vis sans fin (8) montée à rotation autour d'une vis de couplage (15), et d'une vis sans fin (9), dans lequel pour un pivotement du panier tamis (2), on soulève des broches de couplage (14) d'un élément de couplage (12) qui traversent la roue à vis sans fin (8) et sont fixées en traversant une plaque de guidage (13) dans une position traversant un couvercle de l'élément de retenue (4), par rotation d'une vis de couplage (15).
EP20193729.9A 2019-09-04 2020-08-31 Hache-bois Active EP3789169B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50773/2019A AT522947B1 (de) 2019-09-04 2019-09-04 Holzhackmaschine

Publications (2)

Publication Number Publication Date
EP3789169A1 EP3789169A1 (fr) 2021-03-10
EP3789169B1 true EP3789169B1 (fr) 2022-04-27

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Family Applications (1)

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EP20193729.9A Active EP3789169B1 (fr) 2019-09-04 2020-08-31 Hache-bois

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EP (1) EP3789169B1 (fr)
AT (1) AT522947B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10125923C2 (de) * 2001-05-21 2003-04-30 Pallmann Kg Maschf Verfahren, Anordnung und Magazin zum selbsttätigen Auswechseln der Messereinheiten eines Messerrings eines Messerringzerspaners
DE102005029899A1 (de) * 2005-06-25 2007-01-04 Gotic Gmbh Messerschneidmühle
US7942353B2 (en) * 2006-10-26 2011-05-17 Allegheny Paper Shredders Corporation Adjustable screen for material destruction apparatus
DE202007015635U1 (de) 2007-11-09 2009-03-26 Komptech Gmbh Hackmaschine
DE102012018074A1 (de) 2012-09-13 2014-03-13 Hogha Gmbh Vorrichtung zum Sortieren von Hackschnitzeln
DE202016001917U1 (de) * 2016-03-24 2017-05-26 B. Maier Zerkleinerungstechnik Gmbh Zerkleinerungsmaschine

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Publication number Publication date
AT522947B1 (de) 2022-10-15
AT522947A1 (de) 2021-03-15
EP3789169A1 (fr) 2021-03-10

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