WO2017007449A1 - Ensemble lame de déchiqueteuse - Google Patents

Ensemble lame de déchiqueteuse Download PDF

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Publication number
WO2017007449A1
WO2017007449A1 PCT/US2015/039247 US2015039247W WO2017007449A1 WO 2017007449 A1 WO2017007449 A1 WO 2017007449A1 US 2015039247 W US2015039247 W US 2015039247W WO 2017007449 A1 WO2017007449 A1 WO 2017007449A1
Authority
WO
WIPO (PCT)
Prior art keywords
knife
blade assembly
shredder blade
inserts
assembly 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.)
Ceased
Application number
PCT/US2015/039247
Other languages
English (en)
Inventor
Ted Bushman Rogers
Michael Bradley Swenson
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.)
ECO GREEN EQUIPMENT LLC
Original Assignee
ECO GREEN EQUIPMENT LLC
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 ECO GREEN EQUIPMENT LLC filed Critical ECO GREEN EQUIPMENT LLC
Priority to CN201580049955.9A priority Critical patent/CN106714971B/zh
Priority to PCT/US2015/039247 priority patent/WO2017007449A1/fr
Publication of WO2017007449A1 publication Critical patent/WO2017007449A1/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
    • B02C18/14—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
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/146—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with a rotor comprising a plurality of axially contiguous disc-like segments each having at least one radially extending cutting element
    • 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

Definitions

  • This disclosure relates to a shredder blade assembly that includes interchangeable knife inserts with six cutting edges.
  • Shredding machines are used to shred or reduce objects into smaller pieces for reuse or recycle.
  • Shredding machines are commonly rotary shredders comprising pairs of counter-rotating, intermeshing, serrating and shearing blade assemblies or cutting wheels.
  • the blade assemblies are mounted on parallel rotating shafts.
  • the number of pairs of parallel blade assemblies on a single shaft can vary. A larger number of blade assemblies will increase the capacity of the shredder.
  • the parallel blade assemblies are separated by spacers to allow intermeshing of another set of parallel blade assemblies on another shaft.
  • the tire or article to be shredded encounters the outer periphery of the counter-rotating blade assemblies. After continuous shredding for a period of time, the outer periphery of the blade assembly becomes worn by the toughness of tires or articles being shredded. These cutting or shearing surfaces would need to be resurfaced.
  • the problem of resurfacing cutting wheels has been addressed by using a modular construction of blade assemblies comprising a rotor structure upon which a plurality of cutting and shearing surfaces are attached. The outer peripheral contact region of a blade assembly is removed and replaced instead of removing the entire wheel from its shaft for repair. This is done by removing individual cutting and shearing surfaces, or knives, from the rotor.
  • a shredder blade assembly includes a rotor upon which are mounted interchangeable knife inserts.
  • Each knife insert has six cutting or shearing edges. It may have a triangular or modified-triangular shape. During shredder operation, only one of the six cutting edges is subject to wear. After one cutting edge is worn, the knife insert is rotated 120°, thereby exposing another edge. The knife insert may be rotated to expose the three cutting edges on one side of the knife insert. After all three cutting edges on one side are worn, the entire knife insert is flipped over and rotated as needed to expose three additional cutting edges. The knife inserts are held in place by a symmetrical hole pattern that enables correct placement and bolting of the knife insert onto the rotor despite being rotated and flipped.
  • the knife inserts are preferably fabricated of a high alloy steel and/or tool steel.
  • the knife inserts may optionally be coated with wear resistant surface coatings.
  • the knife inserts may optionally be fabricated with carbide wear edges.
  • the knife inserts are staggered on each side of the rotor so that the teeth/hooks are offset to create a smoother flow of material into the blade assembly as they cut, shear, and shred the material. Without being bound by theory, it is believed that the smoother flow of material into the blade assembly produces less stress and wear on the gears and motors that drive the shredder.
  • FIGs. 1A, IB, and 1C are front perspective, front, and side views, respectively, of a shredder blade assembly within the scope of the disclosed invention.
  • FIGs. 2A and 2B are front and top plan views, respectively, of shredder blade assemblies mounted on shafts.
  • Figs. 3A, 3B, and 3C are front perspective, front, and side views, respectively, of a rotor within the scope of the disclosed invention.
  • Fig. 4 is an enlarged view of region A3 identified in Fig. 3B.
  • Fig. 5 is an enlarged partial cross-sectional view taken along line B3-B3 of Fig. 4.
  • Figs. 6A, 6B, and 6C are a front perspective, a front, and a cross-sectional view (taken along line C4-C4 of Fig. 6B), respectively, of a knife insert within the scope of the disclosed invention.
  • Figs. 7A, 7B, and 7C are a front perspective, a front, and a cross-section view (taken along line A-A of Fig. 7B), respectively, of a blade assembly spacer within the scope of the disclosed invention.
  • the disclosed invention relates to a shredder blade assembly having interchangeable knife inserts.
  • a shredder blade assembly 100 is shown in Figs. 1A, IB, and 1C.
  • the shredder blade assembly includes a rotor 110 upon which are mounted a plurality of knife inserts 120.
  • 12 knife inserts 120 are mounted on one side of the rotor 110 and 12 other knife inserts 120 are mounted on the opposite side of the rotor 110.
  • the number of knife inserts mounted on each rotor may be varied. Thus, the invention is not limited to the specific number of knife inserts shown in the Figures.
  • the knife inserts 120 are mounted to the rotor using suitable fasteners 130.
  • the fasteners 130 may be screws, such as socket head cap screws. As shown, each rotor may be mounted using screws in a symmetrical screw hole pattern. A symmetrical hole pattern enables correct placement and bolting of the knife insert 120 onto the rotor 110 despite being rotated and flipped.
  • three fasteners 130 are used to mount each knife insert 120.
  • a single centrally located fastener may be used to mount each knife insert 120. It is understood that precise number of holes and fasteners used may vary.
  • the disclosed knife inserts 120 are preferably made in the shape of an equilateral triangle.
  • the shape of the knife inserts may be modified to another polygonal shape and still provide six cutting and shearing edges.
  • the knife insert may have a modified triangular shape, such as a hexagonal shape.
  • a modified triangular shape includes a shape that still has three dominant sides or edges, but may not be "technically" a triangle.
  • a modified triangular shape that is hexagonal may be achieved by removing a portion of each vertex of the equilateral triangle. The precise angle and amount removed from each vertex may vary.
  • the knife inserts are staggered on the each side of the rotor so that the teeth/hooks 140, 142 are offset to create a smoother flow of material into the shredder blade assemblies as they cut, shear, and shred the material. Without being bound by theory, it is believed that the smoother flow of material into the blade assembly produces less stress and wear on the gears and motors that drive the shredder.
  • Rotary shredders comprise pairs of counter-rotating, intermeshing, serrating and shearing blade assemblies.
  • Fig. 2A shows a front view and 2B shows a top view of shredder blade assemblies 100 mounted on parallel rotatable shafts.
  • the number of pairs of parallel blade assemblies on a single shaft can vary. A larger number of blade assemblies will increase the capacity of the shredder. It will be appreciated that the number of blade assemblies 100 shown in Fig. 2B is for illustration purposes. The actual number of blade assemblies 100 in a working rotary shredder would typically be greater than the number illustrated in Fig. 2B.
  • Each shaft rotates in an opposite direction, as shown by arrows 150, 152 so that the article to be shredded is drawn into a shredding zone indicated by arrow 154.
  • the exposed outer edge of knife inserts on one blade assembly 100 (identified as "A” in Fig. 2B) contact and interact with the exposed outer edge of knife inserts on the opposed and adjacent blade assembly rotating in the opposite direction (identified as "B” in Fig. 2B).
  • the interacting outer edges cut, shear, or shred the article.
  • the parallel blade assemblies are separated by spacers 160 to allow proper spacing and intermeshing of an opposing set of parallel blade assemblies on another shaft.
  • the width or thickness of the spacers may vary as needed to ensure that opposing blade assemblies interact to produce the cutting, shearing, or shredding function.
  • a representative example of a blade assembly spacer is shown in Figs. 7A-7C.
  • Figs. 3A-3C illustrate one non-limiting example of a rotor 110 within the scope of the disclosed invention.
  • the rotor 110 is fabricated or machined to include a plurality of knife receptacles 170 sized and configured to receive a plurality of triangular knife inserts mounted on opposite sides of the rotor. While the illustrated embodiment of the rotor 110 may accommodate 12 knife inserts mounted on each side, it is understood that the rotor can be fabricated to accommodate any practical number of knife inserts.
  • Each knife receptacle includes one or more holes 172 disposed in a symmetrical hole pattern to receive suitable fasteners used to mount a knife insert.
  • the symmetrical hole pattern enables correct placement and bolting of knife insert onto the rotor 110 despite being rotated and flipped.
  • FIG. 4 is an enlarged view of the knife receptacle 170 shown in the region A3 identified in Fig. 3B.
  • Fig. 5 is an enlarged partial cross-sectional view taken along line B3- B3 of Fig. 4.
  • Figs. 6A-6C show details of a knife insert 120.
  • each knife insert 120 is triangular shaped, thereby providing six cutting or shearing edges, labelled in Fig. 6 A as edges a, b, c on one side and edges a' and b' on the opposite side, with edge c' being hidden in the perspective view by edge c.
  • edge c being hidden in the perspective view by edge c.
  • the knife insert is removed from the rotor, rotated 120°, and reinstalled to the rotor, thereby exposing another edge.
  • the knife insert 120 is rotated as needed to expose the three cutting edges on one side of the knife insert. After all three cutting edges on one side are worn, the entire knife insert 120 is flipped over and rotated as needed to expose three additional cutting edges.
  • the knife inserts 120 are mounted to the rotor by fasteners 130 using holes 180 arranged in a symmetrical hole pattern that enables correct placement and bolting of the knife insert 120 onto the rotor 110 despite being rotated and flipped, as described above.
  • the knife inserts are preferably fabricated of a high alloy steel and/or hardened tool steel.
  • the knife inserts may optionally be coated with wear resistant surface coatings.
  • the knife inserts are fabricated with carbide wear edges.

Landscapes

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

Abstract

L'invention concerne un ensemble lame de déchiqueteuse comportant un rotor configuré pour être monté sur un arbre rotatif, le rotor ayant des faces opposées avec une pluralité de réceptacles de couteau inclinés et une pluralité d'inserts de couteau montés à l'intérieur de la pluralité de réceptacles de couteau. Chaque insert de couteau comporte deux faces opposées et chaque face opposée comprend trois arêtes tranchantes de sorte que chaque insert de couteau comporte six arêtes tranchantes de coupe. Une seule des arêtes tranchantes est exposée au niveau d'un bord périphérique extérieur de l'ensemble lame de déchiqueteuse pendant l'utilisation. Les inserts de couteau sont configurés pour être retirés, tournés (et inversés si nécessaire), et remontés à l'intérieur de la pluralité de réceptacles de couteau pour exposer une autre des arêtes tranchantes sur le bord périphérique extérieur de l'ensemble lame de déchiqueteuse. L'insert de couteau peut être triangulaire et monté pour exposer un sommet pour créer une pluralité de saillies en forme de dent/crochet.
PCT/US2015/039247 2015-07-06 2015-07-06 Ensemble lame de déchiqueteuse Ceased WO2017007449A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580049955.9A CN106714971B (zh) 2015-07-06 2015-07-06 粉碎机叶片组件和旋转式粉碎机
PCT/US2015/039247 WO2017007449A1 (fr) 2015-07-06 2015-07-06 Ensemble lame de déchiqueteuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2015/039247 WO2017007449A1 (fr) 2015-07-06 2015-07-06 Ensemble lame de déchiqueteuse

Publications (1)

Publication Number Publication Date
WO2017007449A1 true WO2017007449A1 (fr) 2017-01-12

Family

ID=57685392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/039247 Ceased WO2017007449A1 (fr) 2015-07-06 2015-07-06 Ensemble lame de déchiqueteuse

Country Status (2)

Country Link
CN (1) CN106714971B (fr)
WO (1) WO2017007449A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR20170100364A (el) * 2017-07-24 2019-04-04 Σταυρος Μιχαλη Καριωτακης Καταστροφεας κλαδιων με συστημα προωθησης των κλαδιων και συστημα επεξεργασιας των κλαδιων για παραγωγη βιομαζας

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU961770A1 (ru) * 1981-02-23 1982-09-30 Всесоюзный Научно-Исследовательский Институт Резино-Технического Машиностроения Ножевой ротор дл резки полимерных материалов
US4546929A (en) * 1982-06-04 1985-10-15 Fritsch Rudolf P Rotary cutting tool, particularly for comminuting plastic material
US4607800A (en) * 1983-10-24 1986-08-26 Barclay Randel L Solid waste comminution machine
RU2235598C1 (ru) * 2003-08-18 2004-09-10 Штейнберг Юрий Моисеевич Нож роторной дробилки
WO2009027022A1 (fr) * 2007-08-24 2009-03-05 Amni Maschinenbau Gmbh Broyeuse à rotors
RU2480288C1 (ru) * 2011-09-27 2013-04-27 Николай Иванович Борисенко Пластина режущая для обработки изделий, содержащих эластичные компоненты

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2326336Y (zh) * 1998-06-23 1999-06-30 张铎钟 粉碎机的切削刀组
CN2383583Y (zh) * 1999-06-11 2000-06-21 何明辉 碎纸机刀具
US7533839B2 (en) * 2006-11-20 2009-05-19 Michilin Prosperity Co., Ltd Cutting blade and rotary cutting assembly for shredders

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU961770A1 (ru) * 1981-02-23 1982-09-30 Всесоюзный Научно-Исследовательский Институт Резино-Технического Машиностроения Ножевой ротор дл резки полимерных материалов
US4546929A (en) * 1982-06-04 1985-10-15 Fritsch Rudolf P Rotary cutting tool, particularly for comminuting plastic material
US4607800A (en) * 1983-10-24 1986-08-26 Barclay Randel L Solid waste comminution machine
RU2235598C1 (ru) * 2003-08-18 2004-09-10 Штейнберг Юрий Моисеевич Нож роторной дробилки
WO2009027022A1 (fr) * 2007-08-24 2009-03-05 Amni Maschinenbau Gmbh Broyeuse à rotors
RU2480288C1 (ru) * 2011-09-27 2013-04-27 Николай Иванович Борисенко Пластина режущая для обработки изделий, содержащих эластичные компоненты

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR20170100364A (el) * 2017-07-24 2019-04-04 Σταυρος Μιχαλη Καριωτακης Καταστροφεας κλαδιων με συστημα προωθησης των κλαδιων και συστημα επεξεργασιας των κλαδιων για παραγωγη βιομαζας
GR1009916B (el) * 2017-07-24 2021-01-28 Σταυρος Μιχαλη Καριωτακης Καταστροφεας κλαδιων με συστημα προωθησης των κλαδιων και συστημα επεξεργασιας των κλαδιων για παραγωγη βιομαζας

Also Published As

Publication number Publication date
CN106714971A (zh) 2017-05-24
CN106714971B (zh) 2018-08-24

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