EP2082807B1 - Dispositif de broyage doté de rotors opposés - Google Patents

Dispositif de broyage doté de rotors opposés Download PDF

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Publication number
EP2082807B1
EP2082807B1 EP09000552.1A EP09000552A EP2082807B1 EP 2082807 B1 EP2082807 B1 EP 2082807B1 EP 09000552 A EP09000552 A EP 09000552A EP 2082807 B1 EP2082807 B1 EP 2082807B1
Authority
EP
European Patent Office
Prior art keywords
cutting
positive fit
cutting disc
disc
strip
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 - Fee Related
Application number
EP09000552.1A
Other languages
German (de)
English (en)
Other versions
EP2082807A1 (fr
Inventor
Hartmut Pallmann
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.)
Pallmann Maschinenfabrik GmbH and Co KG
Original Assignee
Pallmann Maschinenfabrik GmbH and Co KG
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 Pallmann Maschinenfabrik GmbH and Co KG filed Critical Pallmann Maschinenfabrik GmbH and Co KG
Priority to PL09000552T priority Critical patent/PL2082807T3/pl
Publication of EP2082807A1 publication Critical patent/EP2082807A1/fr
Application granted granted Critical
Publication of EP2082807B1 publication Critical patent/EP2082807B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
    • 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
    • B02C18/182—Disc-shaped knives
    • B02C18/184—Disc-shaped knives with peripherally arranged demountable cutting tips or elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/015—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with pneumatically or hydraulically actuated piston or the like

Definitions

  • the invention relates to a device for comminution of feed material according to the preamble of patent claim 1 and a suitable cutting tool according to claim 13.
  • the comminution of feedstock is a central component of mechanical process engineering, in which a starting material is divided by separation into smaller components.
  • the feedstock is changed in terms of its subsequent use in its size, shape or composition.
  • suitable separation processes envisage comminution by way of tearing, beating, rubbing, grinding or cutting.
  • the treatment of waste materials may be mentioned, in which a reduction in the size of the starting material is a prerequisite for processing in subsequent processing stations or in which a simultaneous separation into various constituents contained in the feed material takes place in the course of comminution.
  • a device for shredding old tires is from the US-A-4,684,071 a device is known in which by means of opposing cutting rotors, a vehicle tire is divided.
  • the cutting rotors consist of arranged on a shaft at an axial distance cutting discs, which are occupied over its circumference with cutting tools, wherein the cutting discs of a rotor with a small radial overlap in the Intervene gaps in the other cutting rotor. Since the cutting tools are exposed to a large mechanical stress in operation and have a correspondingly high wear, the cutting tools are releasably secured to the cutting discs to replace them as needed for new or nachgeWarrfte.
  • the positioning of the cutting tools on the cutting discs is done with the mounting screws. Due to the clearance between the cutting tool and the fastening screw, the adjustment of the cutting gap is large Tolerances that preclude adherence to a precise cutting geometry and entail the negative effects on the cutting process described above.
  • the mounting screws can be arranged only in compliance with a minimum distance from the transverse edge of the cutting tools.
  • the resulting leverage ratios result in non-uniform load application in the crushing operation to a non-optimal load transfer, which must be considered in the dimensioning of the mounting screws.
  • the invention has for its object to provide a device in which the cutting operation is performed with the greatest possible precision while improving the load transfer into the cutting discs and minimizing the cost of changing the cutting tools.
  • the basic idea of the invention consists in the separation of the functional units for the secure and positionally accurate fixing of the cutting tools on the cutting discs.
  • a function split takes place on the one hand in the low-voltage and secure the cutting tools on the cutting disc and on the other hand in securing the fit of the cutting tools in the predetermined desired position on the cutting disc.
  • the low tension of the cutting tool is carried out according to the invention with radially acting screws.
  • screws are not up to the raw crushing operation within generic devices and therefore often bent or damaged in any other way, so that loosening the screws and thus changing the crushing tools is possible only with great effort, the screws as a rule must be replaced by new ones.
  • the other functional units for ensuring the fit of the cutting tool serve primarily to secure the position of the cutting tool in the axial direction to ensure the optimum cutting gap and thus the optimum cutting geometry.
  • the positive locking groove has a trapezoidal tapering to the bottom of the form-fitting groove cross-section. This facilitates on the one hand the placement of the cutting tool on the cutting disc. On the other hand, it also favors a release of the cutting tool, as a Jamming or wedging the form-fitting strip in the form-fitting groove is effectively prevented.
  • the form-fitting groove and form-fitting strip extend over the entire length of the underside of the cutting tool or the bearing surface of the cutting disk.
  • Such an embodiment of the invention advantageously has at least in the end regions in sections form-fitting strips which engage in the form-fitting groove.
  • FIGS. 1 to 4 show the general structure of a device according to the invention in the form of a Doppelwellenschredders 1, which is suitable for example for the pre-shredding of old tires, but also treatment of electronic waste and other materials.
  • the double-shaft shredder 1 has a downwardly and upwardly open rectangular housing 2, which with its transverse walls 5 and longitudinal walls 6 a working space 7 umschl impartt.
  • the housing 2 rests on a support frame 3, the top of which is covered around the housing 2 of cover plates 4, so as to form a platform for other machine components.
  • a funnel-like material outlet 9 connects, via which the sufficiently comminuted material is discharged from the double-shaft shredder 1.
  • a funnel-like material outlet 9 connects, via which the sufficiently comminuted material is discharged from the double-shaft shredder 1.
  • To the upper opening of the housing 2 includes a flush with the transverse walls 5 and longitudinal walls 6 extending feed chute 8, via which the feed material is the double-shaft shredder 1 abandoned.
  • the longitudinal walls 6 extend internals to the material supply. These consist on the one hand of a tilt adjustable slide 10 and the other from conveyor rollers 11, the waves 12 carry star-shaped gripping wheels 13 and are offset by electric drives 14 on the outside of a longitudinal wall 6 in opposite rotation.
  • the cutting mechanism substantially comprises the two rotors 15 and 16, which are arranged at a predetermined distance axially parallel to each other and with opposite directions of rotation between the longitudinal walls 6.
  • the structure of the rotors 15 and 16 is a mirror image, each having a drive shaft 17 which is rotatably mounted in arranged on the outside of the longitudinal walls 6 bearings 18. In each case one end of the drive shaft 17 is coupled to a hydraulic rotary drive 19, which causes the rotational movement of each rotor 15 and 16 in the direction of rotation indicated by arrows.
  • the rotors 15 and 16 have a plurality of cutting discs 20 and spacers 21, which sit alternately on the drive shaft 17.
  • the driving force is transmitted ( FIG. 1 ).
  • Axial parallel bolts 22 clamp the cutting discs 20 and spacers 21 together.
  • bearing surface 23 On the concrete design of the bearing surface 23 is in the description of the FIGS. 5 a to 8 b discussed in more detail.
  • the relative position of the rotors 15 and 16 to each other is such that by an axial offset by the thickness of a spacer disc 21 in the radial direction in each case a spacer disc 21 and a cutting disc 20 are opposed.
  • the center distance of the two shafts 17 of the rotors 15 and 16 is selected so that a radial overlap of the cutting tools 23 is ensured in each position of the cutting discs 20, i. the equipped with the cutting tools 23 cutting discs 20 of the two rotors 15 and 16 mesh with each other.
  • FIGS. 5 a to 8 b show constructive solutions of the positionally accurate attachment of the cutting tools 24 on the cutting discs 20.
  • the in the Figures 5 a and b shown embodiment is characterized by a form-fitting strip 28 which extends centrally over the entire length of the support surface 23 on the outer periphery of the cutting disk 20.
  • a cutting tool 24 cooperates, which has a complementary form-fitting groove 31 on its underside 30 facing the support surface 23. In this way, caused by the mutually associated side surfaces of the form-fitting strip 28 and form-fitting groove 31 axial Bearing surfaces on which the cutting tool 24 is supported by the action of axial forces against the cutting disc 20.
  • FIGS. 5 A and B relate to a first embodiment of the invention and show the important part of the invention for a cutting disc 20.
  • the cutting tool 24 has a substantially rod-like shape and is machined from the solid, preferably hardened steel.
  • the front end in the direction of rotation is beveled, so that the upper edge forms a gripping tooth 29 for the safe collection of the feed.
  • the lateral longitudinal edges on the upper side of the cutting tool 24 form the cutting edges 26 which are effective for the cutting process.
  • the attachment according to the invention of the cutting tools 24 on the cutting discs 20 therefore simultaneously enables exact positioning of the cutting edges 26, optimum power transmission from the cutting tools 24 to the cutting disc 20 and protection of the screws 32 against bending stresses. This ensures an exact cutting geometry with high reliability.
  • FIGS. 6 a and b show an embodiment of the invention, which in many parts of the Figures 5 a and b described, so that the same reference numerals are used for the same elements and the comments made there applies accordingly.
  • the form-fitting strip 33 is integrally formed on the underside 30 of the cutting tool 24 and engages in a form-fitting groove 34 in the support surface 23 of the cutting disc 20th
  • FIGS. 8a to 8b relate to embodiments of the invention, which are particularly suitable in connection with a wear protection for the end faces of the cutting discs 20.
  • the annular surface 35 between the spacer disk 21 and the outer circumference of the cutting disk 20 is susceptible to wear, which is why it is already known to protect the cutting disk 20 in the region of the annular surface 35 by means of wear-resistant plates.
  • the in the FIGS. 8 A and 8 b shown embodiments combine in a special way the arrangement of the cutting tool 24 on the cutting disc 20 while fixing a wear protection.
  • FIGS. 7 a and b show a non-inventive embodiment in which the cutting tools 24 have a two-sided axial projection on the cutting disc 20 and protruding from the bottom 30, parallel to the surfaces 35 longitudinal base 38 have.
  • the underside 30 forms in this way a trough-shaped receptacle into which the cutting disc 20 comes to lie with its outer circumference fit.
  • the pedestals 38 thus form, with their inner sides, axially acting force transmission areas for the cutting disc 20, which ensure a snug fit of the cutting tools 24 on the cutting discs 20.
  • top surfaces 39 of the base 38 are inclined inwardly, preferably at an angle of 45 °, so that there are undercuts that form with the cutting disc 20 zwickelförmige recordings for fixing the wear protection.
  • the wear protection is formed by approximately trapezoidal plates 36 whose lower curved edge 40 comes to rest in recesses 41 in the edge region of the spacer disks 21.
  • the upper edge 42 has a complementary to the top 39 of the base 38 inclination, so that the tapered edge engages in the annular undercut of the base 38 and is held in the axial direction. After attaching and securing the cutting tool 24 thus a simultaneous attachment of the plates 36 is achieved.
  • FIGS. 8 a and b relate to an embodiment of the invention, the features of the in the FIGS. 5 a, b and 7 a, b Examples shown combined with the advantage that the base 38 'only serves to fix the plate 36 and therefore may be made structurally thinner.
  • the support surface 23 of the cutting disc 20 corresponds to the under Figures 5 a and b described with a form-fitting strip 28 which cooperates with a form-fitting groove 31 in the bottom 30 of the cutting tool 24.
  • the cutting tool 24 is formed wider than the cutting disc 20, with the supernatant a longitudinal base 38 'is formed.

Landscapes

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

Claims (12)

  1. Dispositif pour le broyage d'un matériau comprenant un organe de coupe avec un premier rotor (15) et un deuxième rotor (16), lesquels le long de leur axe longitudinal tournent en sens contraire l'un de l'autre, chaque rotor (15, 16) étant équipé d'un nombre de disques de coupe (20) munis d'arêtes de coupe (26) espacés axialement les uns des autres et les disques de coupe (20) du premier rotor (15) pénétrant radialement dans les espaces vides entre les disques de coupe (20) leur faisant face dans le deuxième rotor (16) et les disques de coupe (20) ayant sur leur circonférence des surfaces d'appui tangentielles (23) sur lesquelles les outils de coupe (24) sont fixés par des vis agissant radialement, les arêtes de coupe (26) passant l'une devant l'autre en formant un écart de broyage (27) lors de la rotation des rotors (15, 16), caractérisé en ce que, pour créer une liaison par complémentarité de forme entre les outils de coupe (24) et le disque de coupe (20), au niveau de la surface de contact commune formée par la surface d'appui (23) sur le disque de coupe (20) et la face inférieure (30) de l'outil de coupe (24), est prévu d'un côté une rainure de liaison (31, 34) dans le plan du disque de coupe (20) et de l'autre côté au moins une nervure de liaison (28, 33) monobloc, laquelle nervure de liaison (28, 33) vient s'emboîter dans la rainure de liaison (31, 34).
  2. Dispositif selon la revendication 1, caractérisé en ce que la rainure de liaison (31, 34) est située dans la surface d'appui (23) sur le disque de coupe (20) et la nervure de liaison (28, 33) dans la face inférieure (30) de l'outil de coupe (24).
  3. Dispositif selon la revendication 1, caractérisé en ce que la rainure de liaison (31, 34) est située dans la face inférieure (30) de l'outil de coupe (24) et la nervure de liaison (28, 33) dans la surface d'appui (23) sur le disque de coupe (20).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'outil de coupe (24) est plus large que le disque de coupe (20) n'est épais et en ce que le dépassement de l'outil de coupe (24) au delà des surfaces latérales (35) du disque de coupe (20) est incliné vers le disque de coupe (20) en formant une dépouille.
  5. Dispositif selon revendication 1 ou 3, caractérisé en ce que l'outil de coupe (24) est plus large que le disque de coupe (20) n'est épais et en ce qu'au niveau du dépassement au-delà des surfaces latérales (35) du disque de coupe (20) ont été formés des rebords en forme de socle (38) qui forment la rainure de liaison (31) dans laquelle vient se loger le disque de coupe (20) dans toute son épaisseur en tant que nervure.
  6. Dispositif selon la revendication 5, caractérisé en ce que la face supérieure (39) des rebords en forme de socle (38) est inclinée vers le disque de coupe (20) en formant une dépouille.
  7. Dispositif selon l'une des revendications 4 à 5, caractérisé en ce que les surfaces latérales libres (35) du disque de coupe (20) sont couvertes par des plaques d'usure (36) dont le bord supérieur est conçu pour venir s'adapter dans la dépouille pour former une liaison par complémentarité de forme.
  8. Dispositif selon la revendication 7, caractérisé en ce que le bord inférieur (40) des plaques d'usure (36) est logé dans des évidements (41) complémentaires dans le rotor (15, 16), en particulier dans les entretoises (21).
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que la rainure de liaison (31, 34) a une section transversale qui décroît en forme de trapèze vers le fond de la rainure de liaison (31, 34).
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que la rainure de liaison (31, 34) et la nervure de liaison (28, 33, 20) s'étendent sur toute la longueur de la surface d'appui (23).
  11. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que la rainure de liaison (31, 34) s'étend sur toute la longueur de la surface d'appui (23) et la nervure de liaison (28, 33, 20) est discontinue de telle sorte que seuls des parties de la nervure de liaison (28, 33, 20) s'emboîtent dans la rainure (31, 34).
  12. Dispositif selon la revendication 11, caractérisé en ce que la nervure de liaison (28, 33, 20) est interrompue dans la partie centrale.
EP09000552.1A 2008-01-24 2009-01-16 Dispositif de broyage doté de rotors opposés Expired - Fee Related EP2082807B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09000552T PL2082807T3 (pl) 2008-01-24 2009-01-16 Urządzenie do rozdrabniania z przeciwbieżnymi wirnikami

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008005941A DE102008005941A1 (de) 2008-01-24 2008-01-24 Zerkleinerungsvorrichtung für Aufgabengut mit gegenläufigen Rotoren

Publications (2)

Publication Number Publication Date
EP2082807A1 EP2082807A1 (fr) 2009-07-29
EP2082807B1 true EP2082807B1 (fr) 2013-10-23

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Application Number Title Priority Date Filing Date
EP09000552.1A Expired - Fee Related EP2082807B1 (fr) 2008-01-24 2009-01-16 Dispositif de broyage doté de rotors opposés

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US (1) US8038088B2 (fr)
EP (1) EP2082807B1 (fr)
CA (1) CA2650747C (fr)
DE (1) DE102008005941A1 (fr)
ES (1) ES2443122T3 (fr)
PL (1) PL2082807T3 (fr)

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Publication number Priority date Publication date Assignee Title
CN104149227B (zh) * 2014-07-29 2016-06-29 浙江长海包装集团有限公司 一种塑料颗粒的粉碎机
US11065624B2 (en) * 2019-07-03 2021-07-20 Scott Equipment Company Carton reducer/bag opener device
CN110154277B (zh) * 2019-07-08 2020-06-19 霍昀 一种废旧轮胎破碎刀辊及其多功能破碎机
CN111016007B (zh) * 2019-12-28 2021-06-25 江苏永和高分子技术有限公司 一种密封橡胶条加工机械及密封橡胶条加工方法
CN111841858B (zh) * 2020-07-28 2021-10-08 蓬莱沈蓬建材有限公司 一种自动上料的矿粉生产线
CN113695050A (zh) * 2020-10-10 2021-11-26 沈会琼 一种环保型工业固废搅碎回收装置及其操作方法
CN113580255A (zh) * 2021-07-20 2021-11-02 华孚精密科技(马鞍山)有限公司 一种笔记本外壳加工辅助工作台

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US4684071A (en) 1985-10-21 1987-08-04 Columbus Mckinnon Corporation Unitized machine for shredding waste automotive vehicle tires
US4854508A (en) * 1988-10-06 1989-08-08 Columbus Mckinnon Corporation Tire shredding machine
DE3918657C2 (de) * 1989-06-08 1994-02-10 Lindemann Maschfab Gmbh Rotor mit Schutzkappen
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JPH0753712Y2 (ja) * 1991-03-08 1995-12-13 株式会社キンキ シュレッダー用切断刃
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FR2809333B1 (fr) 2000-05-25 2002-08-16 Precimeca Broyeur de dechets perfectionne, parties constitutives et procede de maintenance
US7100855B2 (en) * 2002-06-27 2006-09-05 Barclay Roto-Shred Incorporated Modular blades for tire shredder
US7172147B2 (en) * 2004-07-01 2007-02-06 Barclay Roto-Shred Incorporated Modular blade assembly with alignment means

Also Published As

Publication number Publication date
CA2650747C (fr) 2011-08-02
ES2443122T3 (es) 2014-02-17
PL2082807T3 (pl) 2014-04-30
EP2082807A1 (fr) 2009-07-29
US20090189004A1 (en) 2009-07-30
US8038088B2 (en) 2011-10-18
CA2650747A1 (fr) 2009-07-24
DE102008005941A1 (de) 2009-07-30

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