EP1018414B1 - Déchiqueteuse à lames-couronne pour couper des coupeaux - Google Patents

Déchiqueteuse à lames-couronne pour couper des coupeaux Download PDF

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Publication number
EP1018414B1
EP1018414B1 EP00100016A EP00100016A EP1018414B1 EP 1018414 B1 EP1018414 B1 EP 1018414B1 EP 00100016 A EP00100016 A EP 00100016A EP 00100016 A EP00100016 A EP 00100016A EP 1018414 B1 EP1018414 B1 EP 1018414B1
Authority
EP
European Patent Office
Prior art keywords
knife
rotor
knife ring
ring cutter
cleaving
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.)
Expired - Lifetime
Application number
EP00100016A
Other languages
German (de)
English (en)
Other versions
EP1018414A1 (fr
Inventor
Robert Loth
Rolf Dipl.-Ing. Ameling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
B Maier Zerkleinerungstechnik GmbH
Original Assignee
B Maier Zerkleinerungstechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B Maier Zerkleinerungstechnik GmbH filed Critical B Maier Zerkleinerungstechnik GmbH
Publication of EP1018414A1 publication Critical patent/EP1018414A1/fr
Application granted granted Critical
Publication of EP1018414B1 publication Critical patent/EP1018414B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/005—Tools therefor
    • 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
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof

Definitions

  • the invention relates to a knife ring chipper for machining Wood chips.
  • a chipper is for example from DE 32 47 629 C1 known.
  • Such a chipper is constructed as follows: it also includes a knife ring a variety of knife packages. Each knife pack has a knife that points with its cutting edge inwards, and that against the radial direction is inclined.
  • the knife ring encloses a rotor which is coaxial to the Knife ring is arranged.
  • the rotor has a large number of rotor blades on.
  • Each rotor blade carries a strip-shaped at its outer end Splitting knife, which is arranged axially parallel and over the width of the Rotors extends.
  • the rotor - essentially in the axial direction - Wood chips are fed to the outside against the knife packs flings.
  • the mentioned splitting knives work with the knives of the Knife rings together by breaking the chips into fine chips.
  • the radially outer dimension of the splitting knife is a very critical measure. It must be set precisely and in this setting too being held. In any case, it must be prevented that the Splitting knives protrude radially too far, otherwise they will stick with the knives of the knife ring collide.
  • the splitting knives are attached to the rotor blades by means of screws.
  • the splitting knives have elongated holes that extend in the radial direction extend, and through which the screws are passed. This Elongated holes are necessary because the splitting knives change over the course of the Wear time, and because of that a certain radial adjustment outside after a certain period of operation is necessary.
  • the Connection with the fastening screws can therefore only one be frictional. But this is critical because it is due to the high centrifugal forces for a slow migration of the splitting knife radially can come out.
  • the invention has for its object a knife ring chipper, in particular to design its rotor such that the radial position of the Splitting knife is reliably maintained.
  • Each screw connection is namely according to the invention with a wedge-shaped element through which the fastening screw is passed through and that - in an axially perpendicular cut seen - tapered in a radial direction from the inside to the outside.
  • This has the following effects: centrifugal forces occur during operation, as mentioned. These act on the splitting knife, but also on the wedge elements. This both strive to move outside, but it does already with a minimal hike radially outwards due to the Wedge effect of the wedge element to tighten even more tightly Screw connection. This prevents the individual splitting knife from becoming a noteworthy movement radially outwards.
  • Figure 1 shows a cross section through a knife ring chipper.
  • Figure 2 shows a section of the knife ring in a view in Axis direction and greatly enlarged compared to Figure 1.
  • Figure 3 shows a plan view of the rotor in the axial direction.
  • FIGS. 4a-4c each show a rotor blade with different ones Positions of the associated splitting knife.
  • Figure 5 shows a wedge element - compared to the representations of Figures 4a - 4c enlarged.
  • the knife ring chipper shown in FIG. 1 comprises a stationary one Knife ring 1.
  • the knife ring surrounds a rotor 2, which is on a Rotor shaft 2.1 is seated. Knife ring 1 and rotor 2 are coaxial with each other arranged.
  • the knife ring 1 is permanently installed in a housing 3.
  • the Housing 3 has an inlet 3.1 for feeding wood chips, also a chip outlet channel 3.2, which surrounds the knife ring.
  • each knife package has a knife 1.1. This is between a knife holder 1.2 and a clamping plate 1.3 clamped. each Knife package is in the present case with a so-called stick knife 1.4 provided.
  • the two knives namely the knife 1.1 and the knife 1.4, each form a gap 1.5 for radial passage of the chips outward.
  • the invention can also be used without knife packs Use a stick knife.
  • Blades of the rotor are shown in phantom lines. See the shovel 2.1, which carries a splitting knife 2.2. It can be seen that the radial position of the Splitting knife 2.2 is a critical measure. If this is exceeded, then comes there is a collision between the splitting knife 2.2 and the knife 1.1 of the Knife ring 1.
  • Each rotor blade 2.1 has an elongated hole 2.3. It is also a screw 2.4 provided. This is passed through the slot and into one the corresponding threaded hole is screwed into the splitting knife 2.2.
  • a wedge ledge 2.5 On the key component is a wedge ledge 2.5. This is between the head of the Screw 2.4 and the rotor blade interposed. The shape of the wedge ledge 2.5 can be seen from FIG. 5. It is wedge-shaped, in that sense that it tapers radially from the inside out.
  • the rotor blade is in the outer region shown is surrounded by a wear plate 2.6. This is through screws 2.7, 2.8 screwed with associated nuts to the rotor blade 2.1.

Landscapes

  • 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)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Milling Processes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (4)

  1. Dispositif de coupe à bague de couteau pour la coupe de rognures hachées avec une bague de couteau (1), comprenant une couronne de paquets de couteaux et deux bagues supportant ces paquets, qui sont disposées respectivement sur les extrémités des paquets de couteaux ;
    chaque paquet de couteaux présente un couteau (1.1) qui est incliné vers le sens radial et dont la lame est dirigée vers l'intérieur ;
    avec un rotor (2), qui est disposé de façon coaxiale par rapport à la bague de couteau (1) et est entouré par celle-ci ;
    le rotor présente un grand nombre de pales de rotor (2.1), qui portent sur leurs extrémités extérieures des couteaux à fendre (2.2) en forme de baguette, qui sont agencés parallèlement à l'axe et s'étendent sur la largeur du rotor ;
    chaque couteau à fendre (2.2) est fixé au moyen de vis (2.4) sur la pale de rotor (2.1) correspondante ;
    chaque assemblage vissé présente un élément de clavette (2.5) qui se rétrécit en forme de clavette vers l'extérieur dans le sens radial, vu dans une coupe perpendiculaire à l'axe.
  2. Dispositif de coupe à bague de couteau selon la revendication 1, caractérisé en ce que plusieurs assemblages vissés sont prévus par couteau à fendre (2.2) et en ce qu'il est prévu comme élément de clavette une baguette (2.5) unique qui se rétrécit en forme de clavette vers l'extérieur dans le sens radial, vu dans une coupe perpendiculaire à l'axe.
  3. Dispositif de coupe à bague de couteau selon la revendication 1 ou 2, caractérisé en ce que chaque couteau à fendre (2.2) présente respectivement des trous oblongs (2.3) pour le passage des vis (2.4) et en ce que les axes longitudinaux des trous oblongs sont agencés dans le sens radial.
  4. Dispositif de coupe à bague de couteau selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la zone extérieure au plan radial des pales est protégée contre l'usure par une tôle d'usure (2.6).
EP00100016A 1999-01-09 2000-01-03 Déchiqueteuse à lames-couronne pour couper des coupeaux Expired - Lifetime EP1018414B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19900566 1999-01-09
DE19900566A DE19900566B4 (de) 1999-01-09 1999-01-09 Messerring-Zerspaner zum Zerspanen von Hackschnitzeln
US09/667,144 US6558237B1 (en) 1999-01-09 2000-09-21 Knife ring machining tool for machining chips

Publications (2)

Publication Number Publication Date
EP1018414A1 EP1018414A1 (fr) 2000-07-12
EP1018414B1 true EP1018414B1 (fr) 2004-07-07

Family

ID=27614434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100016A Expired - Lifetime EP1018414B1 (fr) 1999-01-09 2000-01-03 Déchiqueteuse à lames-couronne pour couper des coupeaux

Country Status (6)

Country Link
US (1) US6558237B1 (fr)
EP (1) EP1018414B1 (fr)
JP (1) JP4897134B2 (fr)
BR (1) BR0000029A (fr)
DE (1) DE19900566B4 (fr)
ES (1) ES2223316T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10125922B4 (de) * 2001-05-21 2009-02-12 Pallmann Maschinenfabrik Gmbh & Co Kg Zerkleinerungseinheit einer Zerkleinerungsvorrichtung zum Zerkleinern von Aufgabegut, insbesondere Messerkorb eines Zerspaners für Holz
DE10323769B3 (de) * 2003-05-22 2004-10-14 Pallmann Maschinenfabrik Gmbh & Co Kg Zerkleinerungsvorrichtung mit einstellbarem Schnittwinkel
DE102007003698B3 (de) * 2007-01-25 2008-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Herstellen von Flachspänen aus Holz
CN105583444A (zh) * 2014-10-22 2016-05-18 天津中杰科技发展有限公司 石油筛管数控多刀铣床
CN108311974B (zh) * 2018-04-24 2019-01-15 江苏和鼎电子科技有限公司 一种高精度金属表面处理工艺设备

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1424225A (en) * 1922-02-25 1922-08-01 Williams Patent Crusher & Pulv Coved pivoted hammer
DE1958284U (de) * 1967-01-31 1967-04-06 Hombak Maschinenfab Kg Halterung fuer die umlaufenden gegenmesser an fluegelraedern zur fliehkraftzerkleinerung in mahl- oder zerspanungsgehaeusen.
DE2616849A1 (de) * 1976-04-15 1977-11-03 Pallmann Kg Maschf Verschleissplatte fuer zerspaner
DE3247629C1 (de) * 1982-12-23 1984-03-22 Maschinenfabrik B.Maier GmbH & Co KG, 4800 Bielefeld Messerring-Zerspaner für Hackschnitzel
CH650431A5 (fr) * 1983-02-09 1985-07-31 Samvaz Sa Outil de coupe a couteaux amovibles.
US4796818A (en) * 1987-07-30 1989-01-10 Beloit Corporation Chip slicer improvement
US4972888A (en) * 1989-11-14 1990-11-27 Acrowood Corporation Blade-carrying drum assembly for chip slicing machines
FR2663499B1 (fr) * 1990-06-25 1992-10-16 Hesston Braud Procede pour l'affutage des couteaux d'un tambour rotatif et le reglage du contre-couteau fixe cooperant avec ceux-ci et dispositif mettant en óoeuvre ce procede.
JPH04187403A (ja) * 1990-11-21 1992-07-06 Hitachi Koki Haramachi:Kk 木工用かんな盤におけるかんな刃取付方法
US5390862A (en) * 1992-06-12 1995-02-21 7/7/77 Incorporated Apparatus for chipping and grinding tree limbs
DE4316514C2 (de) * 1993-05-18 1996-02-08 Pallmann Kg Maschf Verfahren und Vorrichtung zum Nachschärfen der Messer von Zerkleinerungsmaschinen
US5863003A (en) * 1995-07-26 1999-01-26 Smith; Leward M. Waste processing machine
DE19605072C1 (de) * 1996-02-12 1997-10-02 Pallmann Kg Maschf Vorrichtung zum Nachschärfen von zweidimensional wirksamen Schneidgarnituren bei Zerspanmaschinen, insbesondere für Holz
JPH1018277A (ja) * 1996-07-01 1998-01-20 Saburo Ninomiya 地下集水孔の洗浄装置並びにその洗浄工法
DE19629668C1 (de) * 1996-07-23 1998-01-02 Pallmann Kg Maschf Verfahren und Vorrichtung zum Nachschärfen von Messern für Zerkleinerungsmaschinen, insbesondere von Zerspanmessern für Holz
DE19718681A1 (de) * 1997-05-02 1998-11-05 Maier Zerkleinerungstech Gmbh Messerringzerspaner
DE19910208A1 (de) * 1999-03-09 2000-09-21 Rolf Hesch Vorrichtung zur Behandlung oder Weiterverarbeitung von Stoffen oder Stoffgemischen

Also Published As

Publication number Publication date
EP1018414A1 (fr) 2000-07-12
ES2223316T3 (es) 2005-03-01
DE19900566B4 (de) 2005-03-24
US6558237B1 (en) 2003-05-06
JP4897134B2 (ja) 2012-03-14
BR0000029A (pt) 2000-11-14
JP2000198013A (ja) 2000-07-18
DE19900566A1 (de) 2000-07-13

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