EP1680227A1 - Outil de coupe pour dispositifs de broyage - Google Patents

Outil de coupe pour dispositifs de broyage

Info

Publication number
EP1680227A1
EP1680227A1 EP04797697A EP04797697A EP1680227A1 EP 1680227 A1 EP1680227 A1 EP 1680227A1 EP 04797697 A EP04797697 A EP 04797697A EP 04797697 A EP04797697 A EP 04797697A EP 1680227 A1 EP1680227 A1 EP 1680227A1
Authority
EP
European Patent Office
Prior art keywords
cutting
tool according
cutting tool
tooth
rotor
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
EP04797697A
Other languages
German (de)
English (en)
Other versions
EP1680227B1 (fr
Inventor
Johann Doppstadt
Horst Berger
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE202004002094U external-priority patent/DE202004002094U1/de
Application filed by Individual filed Critical Individual
Publication of EP1680227A1 publication Critical patent/EP1680227A1/fr
Application granted granted Critical
Publication of EP1680227B1 publication Critical patent/EP1680227B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B02C13/28—Shape or construction of beater elements
    • 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
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being 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
    • 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

Definitions

  • the invention relates to a cutting tool for a comminution device or comminution plant, in particular for high-speed devices or plants.
  • Such cutting tools for crushing devices and systems are known.
  • the devices in which the cutting tools are used run at a rotation of approximately 1000 revolutions per minute.
  • the cutting tools are located on a drum or a rotor and interact with counter-cutting edges that are located in the device itself.
  • the counter cutting edges can also be arranged or formed on baskets of the comminution device.
  • the cutting tools consist of a mostly one-piece base body, for example a mallet, which can be fastened on a rotor and which has a cutting body or a cutting edge provided with a straight cutting edge.
  • a cutting shoe is also known from the prior art, which has a sawtooth-like configuration of the cutting surface.
  • the object of the invention is to provide a device which has a higher efficiency, in particular due to the longer service life of the cutting tool, than the solutions known from the prior art and which can be produced, replaced or exchanged with less effort.
  • the invention is based on the prior art described above and proposes a cutting tool for a comminution device or comminution system, in particular for high-speed devices or systems with at least one drum or rotor and at least one counter tool, such as a shredder or the like, consisting of a cutting tooth which can be placed on the rotor or the drum of a comminution device and which is formed on its side directed in the cutting direction as a cutting body with a plurality of cutting edges, which is characterized in that the cutting body is V-shaped in the cutting direction Milling is provided, which form the cutting edges.
  • the large number of cutting edges initially ensures less wear and, in particular, a significantly higher effectiveness of the cutting surfaces combined with a longer service life of the cutting tool itself. This has an extremely positive influence on the production, maintenance and maintenance expenditure.
  • the V-shaped design ensures a high level of efficiency in shredding or cutting and a high level of durability of the cutting surfaces.
  • the teeth of a cutting shoe known from the prior art are arranged transversely to the cutting direction in the installed position.
  • fastening to the roller body with a variety of screw connections is necessary.
  • the formation of the teeth transversely to the cutting direction leads to high wear and is only suitable for a limited number of shredding tasks.
  • the cutting edges of the cutting body according to the invention are oriented in the longitudinal direction, that is to say in the direction of rotation, which increases the effectiveness and the service life.
  • the configuration according to the invention also enables a less time-consuming change. Only one detachable, firm connection is required per cutting tool.
  • the cutting tool according to the invention is distinguished by the possibility of forming a free cut.
  • the attachment to the roller body is also very complex and in particular associated with high manual effort for maintenance tasks.
  • an additional tooth carrier on the roller body is also necessary, as a result of which the production outlay is very high.
  • the cutting tool according to the invention does not have these disadvantages. Rather, the design according to the invention eliminates the disadvantages of the prior art solutions described above.
  • a further development of the cutting tool according to the invention is characterized in that the cutting tooth carries a plurality of cutting edges.
  • This embodiment offers the advantage that individual cutting edges can be replaced when worn. This more than compensates for the effort that may be required to manufacture the device compared to the previously described solution. In particular, differently worn cutting edges can be replaced at different intervals or cycles as required.
  • the invention is characterized in that the cutting tooth comprises a cutting body which has the cutting edges. It is advantageous here that the entire cutting body can be replaced in the event of wear. This shortens the tool change. Of course, there is also the possibility of resharpening or regrinding.
  • the cutting body is formed from tool steel, in particular hardened tool steel.
  • An advantageous development of the invention is characterized in that the cutting body is formed from hard metal.
  • Another aspect of the invention is indicated in that the cutting body is attached to the cutting tooth in a detachable / fixed manner, in particular in an exchangeable manner.
  • This embodiment makes it possible to use wearing parts.
  • the effort for replacing the cutting bodies and changing them is generally less than the effort for replacing the entire basic body.
  • a further advantageous embodiment is specified in that the cutting body is fastened to the cutting tooth by means of a brazed connection. This enables a quick and easy change of the cutting element or elements.
  • a further development of the invention provides that the cutting tooth is also provided with V-shaped recesses which correspond to the V-shape of the cutting body. A further increase in the service life of the cutting edges and an improvement in the cutting or comminution result are thus achieved.
  • the cutting tooth has a free cut. This also leads to an improvement in the cutting or comminution result.
  • the cutting tooth is designed as a truncated pyramid. This ensures that the entire tooth is less subject to wear and, in particular, minimizes the frictional resistance during the cutting or comminution process.
  • the invention also proposes a fastening body which can be fastened on the rotor of the waste comminution system and which carries the cutting tooth.
  • This specifies a very maintenance-friendly embodiment that enables a quick change for repairs or conversions.
  • at least one holder is provided on the drum or on the rotor of the shredding device, on which the fastening body or the entire cutting tool is fastened.
  • the holder or holders can also be arranged releasably on or on the drum or the rotor.
  • the fastening body can be placed on a rotor designed as a shaft.
  • the fastening body can also be designed as a holder
  • the fastening body is arranged behind the cutting tooth in the cutting direction.
  • the cutting tooth is angled or angled with respect to the fastening body.
  • the cutting tooth is detachably arranged on the fastening body.
  • fastening body it has proven to be advantageous for the fastening body to be narrower and flatter than the cutting tooth.
  • the cutting tool according to the invention is also characterized in that the fastening body has at least one fastening means, by means of which the fastening takes place on the drum or the rotor.
  • the fastening body has at least one bore which receives the fastener or fasteners.
  • the fastening body on the side facing the rotor has at least one locking lug, which cooperate with grooves on the rotor, the drum or on the holder for adjustment.
  • the invention also relates to a comminution device or comminution system with a cutting tool according to one or more of the previously described embodiments of the cutting tool.
  • Fig. 1 shows a three-dimensional representation of the cutting tool according to the invention laterally from above
  • FIG. 2 shows a representation rotated by 180 ° according to FIG. 1
  • FIG. 3 bottom view of the cutting tool according to the invention.
  • FIG. 4 side view of the cutting tool according to the invention
  • the cutting tooth is designated by reference number 1.
  • the cutting tooth 1 is formed like a truncated pyramid.
  • a cutting body 2/1 is arranged which carries the cutting edges 2 or on which they are formed.
  • the cutting body and cutting tooth are provided with V-shaped cutouts, recesses or the like, the edges of the cutting body 2/1 lying in the cutting direction A forming the cutting edges.
  • the cutting tooth is also provided with these V-shaped recesses or cutouts. These follow the shape of the recesses on the cutting body 2/1 or correspond to these.
  • the recesses or cutouts are advantageously in relation to the Cutting body angled 2/1, so that there is a free cut. This can be seen particularly well from FIG. 4.
  • the cutting tooth 1 is connected to a fastening body 3, by means of which the cutting tool as a whole can be fastened to the rotor (not shown) or to the drum of the comminution device.
  • the fastening body 3 is arranged behind the cutting tooth 1 as seen in the cutting direction A, is narrower than this and is angled with respect to the cutting tooth 1. In accordance with the illustrated advantageous embodiment of the invention, it is designed to be narrower and flatter than the cutting tooth 1.
  • the fastening body 3 is detachably arranged on the cutting tooth 1 in accordance with the illustration shown. For this purpose, it is advantageously divided into two parts, the upper part 3/1 and the lower part 3/2, which hold the cutting tooth like pliers.
  • the pliers-like design provides that the cutting tooth 1 can be angled or angled with respect to the fastening body 3.
  • This training also contributes, for example, to the fact that impacts or impacts are better absorbed, namely resiliently, during the size reduction process.
  • two locking lugs 5 are provided on the lower part 3/2 of the fastening body 3, which serve to lock and / or center the entire cutting tool on the rotor or on the drum or on corresponding holders, not shown.
  • a bore 4 is provided in the fastening body 3 for receiving or carrying out the fastening means. This enables a screw connection to be implemented, for example.
  • FIG. 2 shows a representation of FIG. 1 rotated by 180 °.
  • the reference numerals were introduced in the description of FIG. 1, are used in the same way, so that a renewed introduction can be dispensed with.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

L'invention concerne un outil de coupe pour dispositif ou installation de broyage, notamment pour des dispositifs ou des installations à grand rendement, comportant au moins un rotor ou un tambour ou similaire et au moins un outil antagoniste, comme un déchiqueteur ou similaire, consistant en une dent coupante (1) pouvant être montée sur le rotor ou le tambour d'un dispositif de broyage et se présentant, au niveau de sa face dirigée dans le sens de coupe (A), sous forme de corps de coupe (2/1), avec une multitude de lames (2). L'invention se caractérise en ce que le corps de coupe (2/1) est muni, dans le sens de coupe (A), de parties dressées à la fraise en forme de V, qui constituent les lames (2).
EP04797697A 2003-11-07 2004-11-07 Outil de coupe pour dispositifs de broyage Expired - Lifetime EP1680227B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20317308 2003-11-07
DE202004002094U DE202004002094U1 (de) 2003-11-07 2004-02-12 Schneidwerkzeug für Zerkleinerungsvorrichtungen
PCT/EP2004/012600 WO2005044455A1 (fr) 2003-11-07 2004-11-07 Outil de coupe pour dispositifs de broyage

Publications (2)

Publication Number Publication Date
EP1680227A1 true EP1680227A1 (fr) 2006-07-19
EP1680227B1 EP1680227B1 (fr) 2011-03-16

Family

ID=34575548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797697A Expired - Lifetime EP1680227B1 (fr) 2003-11-07 2004-11-07 Outil de coupe pour dispositifs de broyage

Country Status (2)

Country Link
EP (1) EP1680227B1 (fr)
WO (1) WO2005044455A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005009461B4 (de) * 2005-03-02 2008-01-03 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Wechselschlegel
PL2259932T3 (pl) * 2008-03-20 2015-05-29 Centro Grafico Dg S P A Proces wytwarzania kostek mozaikowych tesser

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841341A (en) * 1953-08-28 1958-07-01 Catalin Corp Of America Rotary type machine for granulating polystyrene pellets
DE9305835U1 (de) * 1993-04-20 1993-06-17 Doppstadt, Werner, 5620 Velbert Schneidkörper für den Schlegel eines umlaufenden Schlagwerkes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005044455A1 *

Also Published As

Publication number Publication date
EP1680227B1 (fr) 2011-03-16
WO2005044455A1 (fr) 2005-05-19

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