EP0807500B1 - Déchiqueteuse pour coupeaux de bois - Google Patents

Déchiqueteuse pour coupeaux de bois Download PDF

Info

Publication number
EP0807500B1
EP0807500B1 EP97104843A EP97104843A EP0807500B1 EP 0807500 B1 EP0807500 B1 EP 0807500B1 EP 97104843 A EP97104843 A EP 97104843A EP 97104843 A EP97104843 A EP 97104843A EP 0807500 B1 EP0807500 B1 EP 0807500B1
Authority
EP
European Patent Office
Prior art keywords
knife
clamping plate
blade
ring
chopper
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
EP97104843A
Other languages
German (de)
English (en)
Other versions
EP0807500A3 (fr
EP0807500A2 (fr
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
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 EP0807500A2 publication Critical patent/EP0807500A2/fr
Publication of EP0807500A3 publication Critical patent/EP0807500A3/fr
Application granted granted Critical
Publication of EP0807500B1 publication Critical patent/EP0807500B1/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

Definitions

  • the invention relates to a chipper for wood chips.
  • chippers have become known in a variety of embodiments. For example, reference is made to DE-U-93 07 371.
  • chippers wood chips of a certain size are fed with the aim of to break down the chips into chips, mainly from the Chipboard industry are processed.
  • the room is limited, on the one hand due to the diameter of the knife ring and secondly due to the fact that the single knife package - in Seen circumferential direction - occupies a certain minimum space, conditionally due to the structurally required strength of the three components mentioned the knife package, namely the carrier, the knife and the clamping plate.
  • the knife packs cannot be as close together as desired. This would mean a reduction in the size of the chip extraction channel.
  • the invention has for its object a chipper of the type mentioned to be designed such that for a given knife ring diameter more knife packages than before can be accommodated on the knife ring can.
  • the inventor has recognized that the clamping plate with an appropriate design - namely the arrangement of a rib - be made much thinner can than ever since. So you can move the knife packs closer together, so that there is a larger number of knife packs on a knife ring given diameter can accommodate, but at the same time the width of the chip extraction duct remains intact.
  • the stiffening rib according to the The invention extends above all to the radially inner end of the Clamp plate. This is important so that there is still the necessary Clamping force is transmitted from the clamping plate to the knife, and thus there is therefore no gap between the radially inner Clamp tip and the knife comes.
  • the individual stiffening rib is expediently designed so that it affects the flow of chips as little as possible. This is how the Shaved edge of the rib expediently sharp-edged trained so that a current division takes place. This edged edge can also be hardened or from a particularly hard, used part consist.
  • the clamping plate can not only overall can be made thinner but it can also turn into Taper towards the cutting edge of the knife particularly sharply so that the radially inner end of the clamping plate forms a very acute angle.
  • the knife packs according to FIGS. 1 to 4 each include one Knife holder 1, a clamping plate 3 and one between these two clamped knife 2.
  • the crucial feature according to the invention is a stiffening rib 3.1, which is molded onto each clamping plate 3.
  • the stiffening rib 3.1 is at the illustrated embodiment over the front edge 3.2 of the Clamping plate 3 advanced, in the direction of the cutting edge 2.1 of the knife 2 seen.
  • Figures 3 to 8 each have a guide body 4. This is from can be inserted into the knife package from the side. He has different ones Cross sections as can be seen from the figures. For example, in Fig. 3 is a cross-shaped cross section, and in Fig. 4 a T-shaped Cross-section.

Landscapes

  • Engineering & Computer Science (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)
  • Preliminary Treatment Of Fibers (AREA)

Claims (4)

  1. Coupeuse à copeaux pour l'obtention de particules hachées,
    1.1 avec un rotor qui présente une couronne d'ailettes parallèles,
    1.2 avec un anneau de lames présentant une pluralité de paquets de lames répartis sur sa circonférence,
    1.3 chaque paquet de lames comprenant un support de lame (1), une plaque de serrage (3) et une lame (2) serrée en sandwich entre ceux-ci,
    1.4 le support (1), la lame (2) et la plaque de serrage (3) étant serrés ensemble par des vis de serrage,
    1.5 chaque couteau (2) présentant des trous allongés à travers lesquels passe la vis de serrage en question et qui permettent l'ajustement radial de la lame en fonction de l'affûtage de celle-ci,
    caractérisée en ce que :
    1.6 chaque plaque de serrage présente des nervures de raidissement (3.1) au moins dans sa partie proche de la lame ; et
    1.7 les nervures de raidissement (3.1) s'étendent au moins jusqu'à l'extrémité intérieure de la plaque de serrage (3) dans le sens radial.
  2. Coupeuse à copeaux selon la revendication 1, caractérisée en ce que les nervures de raidissement (3.1) font saillie, vues de dessus, au-delà du bord des plaques de serrage (3) en direction de la lame.
  3. Coupeuse à copeaux selon la revendication 1 ou 2, caractérisée en ce que les nervures de raidissement (3.1), vues de dessus, sont en forme de languettes.
  4. Coupeuse à copeaux selon l'une quelconque des revendications 1 à 3, caractérisée en ce que chaque nervure de raidissement (3.1) se trouve, vue de dessus, au-dessus d'un trou allongé de la lame (2).
EP97104843A 1996-05-14 1997-03-21 Déchiqueteuse pour coupeaux de bois Expired - Lifetime EP0807500B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19619345 1996-05-14
DE19619345A DE19619345A1 (de) 1996-05-14 1996-05-14 Zerspaner für Hackschnitzel

Publications (3)

Publication Number Publication Date
EP0807500A2 EP0807500A2 (fr) 1997-11-19
EP0807500A3 EP0807500A3 (fr) 1998-09-23
EP0807500B1 true EP0807500B1 (fr) 2000-07-19

Family

ID=7794240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104843A Expired - Lifetime EP0807500B1 (fr) 1996-05-14 1997-03-21 Déchiqueteuse pour coupeaux de bois

Country Status (3)

Country Link
EP (1) EP0807500B1 (fr)
AT (1) ATE194792T1 (fr)
DE (1) DE19619345A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999059784A2 (fr) * 1998-05-16 1999-11-25 B. Maier Zerkleinerungstechnik Gmbh Systeme d'enlevement de copeaux a lames en anneau
DE19921597C1 (de) * 1999-05-07 2000-07-27 Maier Zerkleinerungsanlage Gmb Messerring-Zerspaner zum Zerspanen von Hackschnitzeln
FI112185B (fi) 1999-05-28 2003-11-14 Andritz Patentverwaltung Laite hakkeen ylisuuren jakeen pienentämiseksi
DE10160034B4 (de) * 2001-11-30 2004-02-26 Esterer Wd Gmbh & Co. Vorrichtung und Verfahren zum Erzeugen von Hackschnitzeln aus Holz
DE102004004877A1 (de) * 2004-01-30 2005-08-18 Pallmann Maschinenfabrik Gmbh & Co Kg Zerkleinerungsvorrichtung mit Messerring
GB2553567A (en) * 2016-09-09 2018-03-14 Turner Development Ltd Cutter and fly-wheel for wood chipping machines

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9307371U1 (de) * 1992-11-28 1994-01-13 B. Maier Zerkleinerungstechnik Gmbh, 33649 Bielefeld Zerspaner für Hackschnitzel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE323872B (fr) * 1946-03-29 1970-05-11 Brundell & Jonsson Ab
AT295833B (de) * 1970-06-26 1972-01-25 Gerhard Dr Ing Maier Vorrichtung zum Zerspanen von kleinstückigem Material, insbesondere vorzerkleinertem Holz
DE2318731C3 (de) * 1973-04-13 1975-12-18 Maschinenfabrik B. Maier Kg, 4812 Brackwede Haltevorrichtung für Messerpakete in einer Zerspanungsvorrichtung
DE3600771A1 (de) * 1984-10-15 1987-07-16 Inter Wood Maschinen Messerhalterung fuer den messerkopf einer holzzerspanungsmaschine
NZ250605A (en) * 1993-12-30 1995-10-26 Matthew D Ornan Keith Dean Rotating drum comminuter blade structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9307371U1 (de) * 1992-11-28 1994-01-13 B. Maier Zerkleinerungstechnik Gmbh, 33649 Bielefeld Zerspaner für Hackschnitzel

Also Published As

Publication number Publication date
EP0807500A3 (fr) 1998-09-23
EP0807500A2 (fr) 1997-11-19
DE19619345A1 (de) 1997-11-20
ATE194792T1 (de) 2000-08-15

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