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WO1989001364A1 - Unite de dechiquetage - Google Patents

Unite de dechiquetage Download PDF

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Publication number
WO1989001364A1
WO1989001364A1 PCT/GB1988/000647 GB8800647W WO8901364A1 WO 1989001364 A1 WO1989001364 A1 WO 1989001364A1 GB 8800647 W GB8800647 W GB 8800647W WO 8901364 A1 WO8901364 A1 WO 8901364A1
Authority
WO
WIPO (PCT)
Prior art keywords
shafts
fabric
unit
base
bearing
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.)
Ceased
Application number
PCT/GB1988/000647
Other languages
English (en)
Inventor
Gordon Grasby Sowden
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.)
SOWDEN ROGER FRANK
Original Assignee
SOWDEN ROGER FRANK
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 SOWDEN ROGER FRANK filed Critical SOWDEN ROGER FRANK
Publication of WO1989001364A1 publication Critical patent/WO1989001364A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B02C18/182—Disc-shaped 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
    • B02C18/14—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
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/04—Codes relating to disintegrating devices adapted for specific materials for used tyres

Definitions

  • This invention relates to a shredder unit for treating waste or scrap material.
  • the invention has been developed primarily, though not exclusively, in relation to a shredder unit for rubber tyres, in which tyres are fed between two sets of cutters, which cut-up the tyres into small fragments which renders them usable for certain markets, or makes them more readily disposable.
  • Tyre shredders have a difficult task in carrying out a satisfactory shredding operation, in view of the nature of the product which is being shredded.
  • tyres are predominently made of rubber, there are other constituents, and particularly wire reinforcements, which cause particular problems in the shredding operation.
  • the cutters are primarily designed to cut-up or shred rubber satisfactorily, but are not well able to deal with the wire reinforcement.
  • wire reinforcement There are, in fact, two different types of wire usually present within the construction of a vehicle tyre.
  • the first type comprises a relatively thick assembly of wires which is located within the tyre "bead", and the shredding of this is not a big problem.
  • the further type of wire within a tyre comprises very narrow guage reinforcing wire which is located in the wall and cover of the tyre. This very fine wire tends to become wrapped around the cutters and the shafts on which they are mounted, and more seriously small fragments of cut wire tend to be driven into the bearing housings at the end of ⁇ the shafts.
  • a shredder unit for shredding waste material which comprises: a base; a pair of drive shafts mounted on said base with their axes of rotation extending substantially horizontally; material-shredding cutters mounted on said shafts for rotation therewith, the shafts being laterally spaced from each other to define a space for receiving material to be shredded; and a pair of axially spaced bearing housings in which said shafts are rotatably mounted: in which the bearing housings, the shafts and the cutters form a unit which is bodily mountable in, and removable from a mounting provided for the unit in the base frame.
  • the entire unit can readily be removed in a simple operation and a replacement unit mounted in its place in a relatively short period, say up to quarter of an hour.
  • each bearing housing (which receives the ends of two shafts) includes so-called fabric bearings in which the shaft ends are rotatably mounted.
  • Fabric bearings are made of a suitable fabric material, such as cotton fabric (impregnated with a molybdenum lubricant or graphite), which is shaped into cylindrical form to receive the respective shaft end, and can be readily installed and supplied much more cheaply than roller bearings.
  • a major advantage over roller bearings is that, in the event of ingress of fine metal wire to the housing, there is less risk of damage to the shaft end and to the bores of the housing receiving the shaft ends, since the wire tends to become entrapped at least partly into the material of the fabric bearing.
  • means is provided for routing water lubricant around and through the fabric ' bearing.
  • the water is also directed over the fabric bearings and outwardly in a direction along the respective shaft.
  • This water flow also acts to resist ingress of fine metal wire fragments, and at least some water may also come into contact with the material to be shredded which, in the case of at least rubber tyres, also promotes the feeding and shredding action.
  • a shredder according to the invention is particularly applicable to the shredding of rubber tyres, but other waste material may be treated.
  • a shredder unit for shredding waste material which comprises: a base; a pair of drive shafts mounted on said base with their axes of rotation extending substantially horizontally; material-shredding cutters mounted on said shafts for rotation therewith, the shafts being laterally spaced from each other to define a space for receiving material to be shredded; and a pair of axially spaced bearing housings in which said shafts are rotatably mounted; in which the bearing housings include fabric bearings in which the shaft ends are rotatably mounted.
  • means is provided for routing a pumped supply of water lubricant into the bearing housings and around the fabric bearings, to lubricate the rotation of the shaft ends.
  • FIG. 1 is an exploded and perspective illustration of a shredder unit according to the invention, for treating waste or scrap material
  • Figure 2 is a schematic plan view of a pair of shaft mounted rotary cutters of the shredder unit; and, Figure 3 is a schematic side view of a rotary cutter.
  • shredder unit according to the invention which has been particularly designed for shredding scrap tyres.
  • a shredder unit according to the invention may be used for treating other waste or scrap material, which is required to be shredded into small shredded particles.
  • the shredder unit is designated generally by reference 10, and comprises a base 11, and a pair of drive shafts 12 mounted on the base 11 with their axes of rotation extending substantially horizontally.
  • Material-shredding rotary cutters 13 are mounted on the shafts 12 for rotation therewith, the shafts 12 being laterally spaced from each other, as shown in Figure 1, to define a space 14 for receiving material to be shredded.
  • a spacer collar 14 which co-operates with a cutter 13 on the adjacent shaft so as to define a very small space through which the tyre must be forced to pass -during the shredding operation.
  • the construction of the cutters 13 and the spacers 14 may be of standard construction employed in existing constructions of tyre shredders.
  • a pair of axially spaced bearing housings 15 rotatably mount the ends of the shafts 12 by means of bearing assemblies which will be described in more detail below.
  • the bearing housings 15, the shafts 12 and the cutters mounted thereon form a unit which is bodily moutable in, and removable from a mounting 16 provided for the unit in the base frame 11.
  • the unit therefore may take the form of a cartridge unit which can readily be removed in the event of any fault or undue wear developing in any of the components of the unit, such as bearing wear or faulty operation of a cutter. A replacement unit can then be mounted in place in a relatively short period.
  • the bearing housings 15 include shaft bores 17 into which the shaft ends are received, and fabric bearings (not shown) are fixed in position within the bores 17 so as to rotatably receive the respective shaft ends.
  • the fabric bearings are made of any suitable fabric, such as cotton fabric, impregnated with a molybdenum based lubricant or graphite, for lubrication purposes.
  • the fabric bearings can cause the wire fragments to become entrapped or at least partly embedded in the material of the fabric, thereby minimising the risk of damage to the shaft end and the wall of the bore 17.
  • means is provided to lubricate the rotation of the shaft ends in the fabric bearings, by providing a pressure supply of water lubricant to the bearing housing, which is caused to flow into the bores 17 and around and through the fabric bearings, and then to - flow in a direction parallel to the axes of the shafts 12.
  • the use of fabric bearings provides a much cheaper item than conventional roller bearings, and yet which can operate entirely satisfactorily.
  • the water lubrication also has a dual function, in that it provides lubricating properties to the running of the shaft end in the fabric bearing, and also resist ingress of fine wire fragments into the bearing housing.

Landscapes

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

Abstract

L'unité de déchiquetage décrite (10), destinée en particulier à déchiqueter des déchets de caoutchouc de pneumatiques, comprend une base (11), une paire d'arbres d'entraînement (12) qui sont montés sur la base (11) et dont les axes de rotation s'étendent sensiblement horizontalement, ainsi que des couteaux de déchiquetage de matériau rotatifs (13) montés sur les arbres (12) de façon à tourner avec eux. Les arbres (12) sont latéralement espacés l'un de l'autre, afin de définir un espace (14) pour recevoir le matériau à déchiqueter et des logements de support (15) sont assemblés de façon rotative aux extrémités des arbres (12) au moyen d'assemblages de support comportant des supports en tissu. Les logements de supports (15), les arbres (12) et les couteaux montés sur les arbres forment une unité pouvant être montée en un seul bloc dans un bâti (16) et pouvant être détachée de ce bâti, lequel est placé dans la base. L'unité peut ainsi prendre la forme d'une unité à cartouches entièrement amovible au cas où un défaut ou une usure exagérée devaient se produire dans n'importe lequel des composants, une unité de remplacement pouvant alors être montée en place en un temps relativement court.
PCT/GB1988/000647 1987-08-11 1988-08-05 Unite de dechiquetage Ceased WO1989001364A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878718952A GB8718952D0 (en) 1987-08-11 1987-08-11 Shredder unit
GB8718952 1987-08-11

Publications (1)

Publication Number Publication Date
WO1989001364A1 true WO1989001364A1 (fr) 1989-02-23

Family

ID=10622108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1988/000647 Ceased WO1989001364A1 (fr) 1987-08-11 1988-08-05 Unite de dechiquetage

Country Status (2)

Country Link
GB (1) GB8718952D0 (fr)
WO (1) WO1989001364A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186401A (en) * 1991-03-12 1993-02-16 James Herdman Crushing machine
US5395061A (en) * 1993-05-03 1995-03-07 Larisan Incorporated Mobile tire shredder
US5661180A (en) * 1993-01-15 1997-08-26 Abbott Laboratories Structured lipid containing gama-linolenic or dihogamma-linolenic fatty acid residue, a medium chain (C6 -C12) fatty acid residue, and a n-3 fatty acid residue
DE29919968U1 (de) 1999-11-13 2000-02-03 artech Recyclingtechnik GmbH, 58640 Iserlohn Zerkleinerungsmaschine
WO2006053942A1 (fr) * 2004-08-24 2006-05-26 Tana Oy Dispositif de broyage
EP2072138A1 (fr) 2007-12-20 2009-06-24 Christian Madaule Machine de broyage de matériaux à rotors rotatifs
WO2009109795A1 (fr) * 2008-01-24 2009-09-11 Texa S R L Appareil pour broyer des déchets présentant un système de nettoyage
WO2013167979A3 (fr) * 2012-05-11 2014-01-23 Envipco Holding N.V. Dispositif de compactage pour bouteilles consignées
WO2015121826A1 (fr) * 2014-02-14 2015-08-20 Tesalys Machine de traitement de déchets infectieux, notamment médicaux
US11833522B2 (en) 2021-12-17 2023-12-05 World Tek Industries Shredder lubrication system
US12172171B2 (en) 2021-12-17 2024-12-24 World Tek Industries Quick change cassette shredder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1123058A (en) * 1964-11-20 1968-08-14 Rene Paul Delaplace Anti-friction bearing elements
DE1927181A1 (de) * 1968-05-28 1969-12-04 Nat Res Dev Lager mit einer Stuetzkonstruktion und einer mit dieser fest verbundenen Lagerschale sowie Verfahren zur Herstellung eines solchen Lagers
DE2253162A1 (de) * 1971-10-29 1973-05-03 Johnson Rubber Co Wassergeschmiertes lager
GB1439030A (en) * 1973-08-03 1976-06-09 Shobert S M Plastics bearing
SE400484B (sv) * 1974-07-05 1978-04-03 Baikoff Eugene M A Skeranordning for forstoring av skrymmande foremal
DE2809328A1 (de) * 1977-02-18 1979-09-13 Tire Gator Verfahren zur behandlung von abfaellen einschliesslich gummi-autoreifen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1123058A (en) * 1964-11-20 1968-08-14 Rene Paul Delaplace Anti-friction bearing elements
DE1927181A1 (de) * 1968-05-28 1969-12-04 Nat Res Dev Lager mit einer Stuetzkonstruktion und einer mit dieser fest verbundenen Lagerschale sowie Verfahren zur Herstellung eines solchen Lagers
DE2253162A1 (de) * 1971-10-29 1973-05-03 Johnson Rubber Co Wassergeschmiertes lager
GB1439030A (en) * 1973-08-03 1976-06-09 Shobert S M Plastics bearing
SE400484B (sv) * 1974-07-05 1978-04-03 Baikoff Eugene M A Skeranordning for forstoring av skrymmande foremal
DE2809328A1 (de) * 1977-02-18 1979-09-13 Tire Gator Verfahren zur behandlung von abfaellen einschliesslich gummi-autoreifen

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186401A (en) * 1991-03-12 1993-02-16 James Herdman Crushing machine
US5661180A (en) * 1993-01-15 1997-08-26 Abbott Laboratories Structured lipid containing gama-linolenic or dihogamma-linolenic fatty acid residue, a medium chain (C6 -C12) fatty acid residue, and a n-3 fatty acid residue
US5962712A (en) * 1993-01-15 1999-10-05 Abbott Laboratories Structured lipid containing gamma-linolenic or dihomogamma-linolenic fatty acid residue, a medium chain (C6-C12) Fatty acid reside and a N-3 fatty acid residue
US5395061A (en) * 1993-05-03 1995-03-07 Larisan Incorporated Mobile tire shredder
DE29919968U1 (de) 1999-11-13 2000-02-03 artech Recyclingtechnik GmbH, 58640 Iserlohn Zerkleinerungsmaschine
EP1099481A1 (fr) * 1999-11-13 2001-05-16 artech Recyclingtechnik GmbH Machine de broyage
US6772971B1 (en) 1999-11-13 2004-08-10 Udo Becker Shredder
WO2006053942A1 (fr) * 2004-08-24 2006-05-26 Tana Oy Dispositif de broyage
EP2072138A1 (fr) 2007-12-20 2009-06-24 Christian Madaule Machine de broyage de matériaux à rotors rotatifs
FR2925368A1 (fr) * 2007-12-20 2009-06-26 Christian Madaule Machine de broyage de materiaux a rotors rotatifs.
WO2009109795A1 (fr) * 2008-01-24 2009-09-11 Texa S R L Appareil pour broyer des déchets présentant un système de nettoyage
WO2013167979A3 (fr) * 2012-05-11 2014-01-23 Envipco Holding N.V. Dispositif de compactage pour bouteilles consignées
WO2015121826A1 (fr) * 2014-02-14 2015-08-20 Tesalys Machine de traitement de déchets infectieux, notamment médicaux
FR3017550A1 (fr) * 2014-02-14 2015-08-21 Tesalys Machine de traitement de dechets infectieux, notamment medicaux
US11833522B2 (en) 2021-12-17 2023-12-05 World Tek Industries Shredder lubrication system
US12172171B2 (en) 2021-12-17 2024-12-24 World Tek Industries Quick change cassette shredder

Also Published As

Publication number Publication date
GB8718952D0 (en) 1987-09-16

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