EP1353754A1 - Systeme de fleau - Google Patents

Systeme de fleau

Info

Publication number
EP1353754A1
EP1353754A1 EP02715400A EP02715400A EP1353754A1 EP 1353754 A1 EP1353754 A1 EP 1353754A1 EP 02715400 A EP02715400 A EP 02715400A EP 02715400 A EP02715400 A EP 02715400A EP 1353754 A1 EP1353754 A1 EP 1353754A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting body
flail
profile
arrangement according
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
EP02715400A
Other languages
German (de)
English (en)
Other versions
EP1353754B1 (fr
Inventor
Werner Doppstadt
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.)
Werner Doppstadt Umwelttechnik & Co KG GmbH
Original Assignee
Werner Doppstadt Umwelttechnik & Co KG 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 Werner Doppstadt Umwelttechnik & Co KG GmbH filed Critical Werner Doppstadt Umwelttechnik & Co KG GmbH
Priority to SI200230155T priority Critical patent/SI1353754T1/sl
Priority to DK02715400T priority patent/DK1353754T3/da
Publication of EP1353754A1 publication Critical patent/EP1353754A1/fr
Application granted granted Critical
Publication of EP1353754B1 publication Critical patent/EP1353754B1/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
    • 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
    • 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 flail arrangement for rotor shredders with a base body rotatably mounted about an axis and a cutting body which is detachably attached to a projection of the base body.
  • Such flails are used as impact tools in rotor shredders, for example for plastic, wood or the like.
  • a flail arrangement in which a cutting body designed as a tooth is interchangeably fastened with a shaft in a recess. It is fastened by means of a screw which protrudes through a hole in the base body and through the shaft of the cutting body.
  • the shaft is provided at the end with a protruding corner which engages behind a projection in the recess. Furthermore, the shaft is provided with a profile which projects into a complementary profile in the recess.
  • the device contains a rotor body, near the circumference of which flails are arranged pivotably.
  • Each mallet consists of one Base body which is pivotally mounted on the rotor body at one end and consists of a cutting body which is attached to the front surface of the flail in the circumferential direction.
  • These cutting bodies are exchangeably attached to the respective flail, since they are subject to rapid wear during operation of the device and can therefore be replaced without having to replace the entire flail.
  • the objects are achieved by a flail arrangement according to the preamble of claim 1, in which on the front in the circumferential direction
  • a protruding profile is formed on the surface of the projection, on which the
  • Cutting body can be positively placed. This ensures optimal power transmission through positive locking.
  • the material to be shredded usually exerts strong forces in different directions on the cutting body and, via the cutting body, also on the grand body of the flail arrangement.
  • Form-fit can not only forces perpendicular to the direction of movement
  • the profile on the base body corresponds to a profile on the cutting body, for example a recess.
  • the cutting body has less volume with a correspondingly lower material consumption.
  • the profile has the shape of a protruding truncated pyramid, the base of which lies in the plane of the front surface of the projection.
  • This shape is simple to manufacture and appropriately reduces material consumption.
  • the number of positions in which the cutting body can be fastened is determined by the number of sides of the truncated pyramid. This makes an adjustment of the position unnecessary
  • the cutting body preferably has two cutting edges with mirror symmetry to a surface which is tangential to a circumference of rotation. However, more cutting edges can also be provided. There are also four for a four-sided truncated pyramid
  • the number of cutting edges can also be increased accordingly. With this configuration, the cutting body can be used several times. After wear, the cutting body only has to be detached and rotated through an angle predetermined by the geometry, and fastened again. This further reduces material consumption and time spent.
  • the cutting body is screwed together by means of a screw which runs centrally through the cutting body and through the profile.
  • a screw which runs centrally through the cutting body and through the profile.
  • the base body preferably has a recess on the rear surface of the projection in the circumferential direction, in which a nut for the screw can be countersunk. This reduces the stress and damage to the mother.
  • the screw length required is also shortened. Furthermore, the cutting body on the in
  • Circumferential direction front surface have a recess in which the screw head the screw is at least partially retractable. This results in less stress and damage to the screw head.
  • Cutting body preferably beveled. This aligns with the bevelled surface of the grand body away from the axis when the cutting body is fastened to the basic body. This minimizes the wear and tear on the grand body.
  • the cutting edge of the cutting body is preferably hardened for a long time
  • Fig.l shows a perspective view of a rotor flail with basic body and screwed cutting body
  • FIG. 2 shows a perspective view of the rotor blade from FIG. 1 without
  • FIG. 3 shows a section through the rotor flail from FIG
  • 10 is a rotor flail.
  • the rotor flail 10 comprises a basic body 12 and a cutting body 16 screwed on with a screw 14, which forms the flail tip.
  • the Grundgro ⁇ er 12 consists of a hollow cylinder 18 which is rotatably mounted about an axis 20.
  • a projection 22 is formed on the hollow cylinder.
  • the projection 22 is essentially stepped, the "step” having a surface 24 on which the cutting body 16 rests.
  • the surface 24 points in the direction of the rotational movement, which is represented by an arrow 26 in Fig.l. It thus forms the front surface of the basic body 12.
  • the cutting body 16 lies positively on the grand body 12. Due to the step-like arrangement, the cutting body 16 is surrounded on two sides by the basic body 12 and forms with it a unit into which no material to be cut can penetrate.
  • the cutting body 16 has a uniform trapezoidal cross section over its entire width.
  • the smaller parallel surface 26 of the trapezoid forms the rear side of the cutting body 16, which rests on the front surface 24 of the basic body 12.
  • the front part 28 of the cutting body 16 is hardened. This delays the wear of the cutting surfaces.
  • the cutting body can also consist of two parts, a hardened front part and an unhardened back part, which are connected to one another.
  • the front part 28 of the cutting body comprises two cutting edges 30 and 32 which are arranged parallel to one another on opposite sides of the cutting body. In other exemplary embodiments, four cutting edges are arranged on each side of the cutting body at an angle of approximately 90 degrees to one another.
  • Cutting edges 30 and 32 protrude slightly forward. Accordingly, the surfaces 34 and 36 run at a slight angle towards the edges. This ensures an optimal cutting effect.
  • the middle part 38 of the front surface between the cutting edges 30 and 32 runs straight, ie parallel to the rear surface 26 of the cutting body.
  • the acute angle of the trapezoid in cross section is somewhat blunted at its ends 40 and 42. This is shown again in Figure 3.
  • the rear surface of the Grand body 12, as well as its surface 44 remote from the axis, are not exactly flat. As a result, the resistance to the material to be cut is somewhat lower.
  • the surface 44 remote from the axis runs in such a way that it adjoins the side surface 46 of the cutting body 16 without edges.
  • the Grandkö ⁇ er 12 is shown without Schneidkö ⁇ er.
  • a molded profile 50 in the form of a truncated pyramid can be seen on the front surface 24 of the basic body 12.
  • a bore 52 for the screw 14 is provided in the truncated pyramid 50.
  • the sides 54 run at an angle of 90 degrees to one another and two sides have edges which run parallel to the cutting edges 30, 32
  • the Schneidkö ⁇ er 16 has on its back a recess that is complementary to the profile 50. With this arrangement, the cutting body 16 can only be screwed to the grand body in four different positions or otherwise attached to it. Adjustment is not necessary. In the present case, the cutting body 16 is placed in such a way that one of the two cutting edges 30, 32 runs parallel to the axis of rotation 20 of the flail. If the cutting edge has become blunt due to wear, the screw 14 is loosened, the cutting body is rotated by 180 degrees and fastened again with the screw 14. Then there is a "fresh"
  • Cutting edge in the place of the previous one If cutting edges are provided on each side of the cutting body 16, the cutting body can be used four times instead of twice. If more cutting edges are to be provided, the number of sides of the truncated pyramid 50 must be increased.
  • a recess 60 is provided on the rear side of the Grand body 12.
  • the screw 14 protrudes through a bore 62 in the cutting body 16 and the bore 52 in the basic body.
  • a suitable nut 64 for the screw 14 is arranged in the recess 60.
  • the bores 52 and 62 do not need to be provided with a thread, which of course is also possible. Due to the protected location of
  • the screw head and nut are not affected or only slightly affected by the material to be cut.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Steroid Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Harvester Elements (AREA)
  • Lock And Its Accessories (AREA)
  • Fats And Perfumes (AREA)
  • Disintegrating Or Milling (AREA)
  • Dental Preparations (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Glass Compositions (AREA)
  • Seal Device For Vehicle (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

L'invention concerne un système de fléau pour un déchiqueteur à rotor, qui comprend un corps de base (12) logé rotatif autour d'un axe (20) et un corps de coupe (16) fixé détachable sur une partie en saillie (22) du corps de base. Sur la surface avant dans le sens de rotation de la partie en saillie (22) est formé un profil saillant (50) sur lequel le corps de coupe (16) s'applique par liaison de forme. Le profil (50) peut avoir la forme d'une pyramide tronquée saillante dont la surface de base se trouve dans le plan de la surface avant (24) de la partie en saillie. Le corps de coupe (16) peut présenter deux arêtes coupantes (30, 32) en symétrie bilatérale par rapport à une surface tangentielle à une circonférence de rotation. Le corps de coupe peut être fixé au moyen d'une vis (14) qui traverse centralement le corps de coupe et le profil.
EP02715400A 2001-01-13 2002-01-08 Systeme de fleau Expired - Lifetime EP1353754B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200230155T SI1353754T1 (sl) 2001-01-13 2002-01-08 Ureditev tolkaca
DK02715400T DK1353754T3 (da) 2001-01-13 2002-01-08 Slagindretning

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10101434A DE10101434C1 (de) 2001-01-13 2001-01-13 Schlegelanordnung für Rotorschredder
DE10101434 2001-01-13
PCT/EP2002/000100 WO2002055203A1 (fr) 2001-01-13 2002-01-08 Systeme de fleau

Publications (2)

Publication Number Publication Date
EP1353754A1 true EP1353754A1 (fr) 2003-10-22
EP1353754B1 EP1353754B1 (fr) 2005-04-27

Family

ID=7670514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02715400A Expired - Lifetime EP1353754B1 (fr) 2001-01-13 2002-01-08 Systeme de fleau

Country Status (21)

Country Link
US (1) US20040056129A1 (fr)
EP (1) EP1353754B1 (fr)
JP (1) JP2004532718A (fr)
CN (1) CN1273219C (fr)
AT (1) ATE294020T1 (fr)
AU (1) AU2002224981B2 (fr)
CA (1) CA2432994A1 (fr)
CZ (1) CZ297099B6 (fr)
DE (2) DE10101434C1 (fr)
DK (1) DK1353754T3 (fr)
EA (1) EA004833B1 (fr)
ES (1) ES2240719T3 (fr)
HU (1) HU225364B1 (fr)
IL (2) IL156795A0 (fr)
NO (1) NO20033182L (fr)
PL (1) PL362476A1 (fr)
PT (1) PT1353754E (fr)
SI (1) SI1353754T1 (fr)
SK (1) SK286713B6 (fr)
UA (1) UA74038C2 (fr)
WO (1) WO2002055203A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7204442B2 (en) 2004-01-13 2007-04-17 Vermeer Manufacturing Company Apparatus and method for supporting and retaining a hammer and cutter
DE102005023339A1 (de) * 2005-05-17 2006-11-30 Ferdinand Doppstadt Schlegel für Rotorschredder
US8540033B2 (en) * 2008-02-22 2013-09-24 Fecon, Inc. Apparatus for land clearing and preparation
DE102010016483A1 (de) * 2010-04-16 2011-10-20 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Schneidkörper
DE102011085520B4 (de) * 2011-10-31 2017-05-04 General Electric Technology Gmbh Hammer einer Schlägermühle
CN102806126A (zh) * 2012-03-05 2012-12-05 长沙理工大学 破碎机
DE102012009852A1 (de) * 2012-05-21 2013-11-21 Artur Willibald Schneidvorrichtung
US11292148B2 (en) * 2015-09-22 2022-04-05 Deere & Company Cutting device tooth mounting arrangement
CN106238173A (zh) * 2016-08-30 2016-12-21 浙江华莎驰机械有限公司 一种废品处理用齿头结构
CN106238149A (zh) * 2016-08-30 2016-12-21 浙江华莎驰机械有限公司 一种元宝形废品处理用齿
CN106423412A (zh) * 2016-08-30 2017-02-22 浙江华莎驰机械有限公司 一种废品处理用碎料齿头
CN108325630A (zh) * 2018-03-30 2018-07-27 浙江华莎驰机械有限公司 一种粉碎机和废品处理用的刀角型齿头
CN108325628A (zh) * 2018-03-30 2018-07-27 浙江华莎驰机械有限公司 一种粉碎机和废品处理用的刀锥形齿头
USD965031S1 (en) 2018-07-12 2022-09-27 Kennametal Inc. Stump cutter tooth
US10856474B2 (en) * 2018-07-12 2020-12-08 Kennametal Inc. Stump cutter tooth assembly
CN108686774A (zh) * 2018-08-08 2018-10-23 徐州中矿大贝克福尔科技股份有限公司 一种多台锤式破碎机同时供料装置及方法
CN108686772A (zh) * 2018-08-08 2018-10-23 徐州中矿大贝克福尔科技股份有限公司 一种锤式破碎机的四面重复用分体式锤头及使用方法
CN110201765A (zh) * 2019-05-31 2019-09-06 浙江华莎驰机械有限公司 一种组合式碎齿头

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467865A (en) * 1944-05-03 1949-04-19 Forrest E Smith Hammer for impact pulverizer
DE2943456A1 (de) * 1979-10-27 1982-02-18 Maschinenfabrik B. Maier Kg, 4800 Bielefeld Vorrichtung zum zerkleinern , insbesondere von rinden und einjahrespflanzen
US4369927A (en) * 1980-06-20 1983-01-25 Rozeboom Antonie G Self-loading feed mixer and transport apparatus with improved grinding and loading mechanism
DE3545708C2 (de) * 1985-12-21 1994-01-20 Werner Doppstadt Umlaufender Schlegel zum Zerkleinern von Materialien
DE3807176A1 (de) * 1987-03-06 1988-10-20 Kobe Steel Ltd Prallbrecher
JPH044052A (ja) * 1990-04-19 1992-01-08 Kurimoto Ltd ハンマーミルのハンマー
US5285974A (en) * 1991-10-16 1994-02-15 American Magotteaux Corp. Two-piece hammer for use in a shredder
US5910052A (en) * 1998-04-14 1999-06-08 Southco, Inc. Process for manufacturing a captive screw
US5967436A (en) * 1998-06-05 1999-10-19 Balvanz; Loran Russell Production plus hammer with protective pocket
US6089480A (en) * 1998-06-18 2000-07-18 Rawlings Manufacturing, Inc. Striker assembly for rotary hog
US6622951B1 (en) * 1999-10-13 2003-09-23 Mobark, Inc. Hammer assembly for wood reducing hammer mills and other comminuting machines and methods of making and using it
US6422495B1 (en) * 2000-02-25 2002-07-23 Vermeer Manufacturing Company Rotary grinder apparatus and method

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Title
See references of WO02055203A1 *

Also Published As

Publication number Publication date
ES2240719T3 (es) 2005-10-16
HUP0400556A2 (en) 2004-06-28
SK8832003A3 (en) 2003-11-04
EP1353754B1 (fr) 2005-04-27
ATE294020T1 (de) 2005-05-15
PL362476A1 (en) 2004-11-02
EA200300665A1 (ru) 2003-12-25
SI1353754T1 (sl) 2006-02-28
JP2004532718A (ja) 2004-10-28
CN1273219C (zh) 2006-09-06
SK286713B6 (sk) 2009-04-06
CN1486217A (zh) 2004-03-31
CZ297099B6 (cs) 2006-09-13
US20040056129A1 (en) 2004-03-25
CA2432994A1 (fr) 2002-07-18
AU2002224981B2 (en) 2005-12-01
NO20033182D0 (no) 2003-07-11
EA004833B1 (ru) 2004-08-26
HU225364B1 (en) 2006-10-28
UA74038C2 (en) 2005-10-17
IL156795A0 (en) 2004-02-08
PT1353754E (pt) 2005-09-30
IL156795A (en) 2007-07-04
WO2002055203A1 (fr) 2002-07-18
DE50202900D1 (de) 2005-06-02
DK1353754T3 (da) 2005-08-22
NO20033182L (no) 2003-09-08
DE10101434C1 (de) 2002-07-25
CZ20031922A3 (cs) 2004-01-14

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