FR2785204A1 - Rotating cylinder in chopper and granulator has trapezoid seatings for peripheral cutting blades and wedges held by screw bolts to lock blades in place with easy replacement - Google Patents

Rotating cylinder in chopper and granulator has trapezoid seatings for peripheral cutting blades and wedges held by screw bolts to lock blades in place with easy replacement Download PDF

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Publication number
FR2785204A1
FR2785204A1 FR9906539A FR9906539A FR2785204A1 FR 2785204 A1 FR2785204 A1 FR 2785204A1 FR 9906539 A FR9906539 A FR 9906539A FR 9906539 A FR9906539 A FR 9906539A FR 2785204 A1 FR2785204 A1 FR 2785204A1
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France
Prior art keywords
wedge
housing
screw
blades
granulator
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FR9906539A
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French (fr)
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FR2785204B1 (en
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Guy Auguste Emile Sosson
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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
    • B02C18/145—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit

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

Abstract

The mounting for the cutting blades (2), in a rotating chopper and granulator, has a seating in a trapezoid shape in the rotating cylinder (0) where they are secured by wedges (24). Each wedge (24) has one or more screw bolts (16) through it, to screw into a threaded drilling in the cylinder (0) at the base of the seating. Tightening the bolts forces the wedge downwards in the seating, to increase the locking pressure on the cutting blade (2). Each wedge can have a number of threaded drillings, each to take a screw bolt to apply a withdrawing action on the wedge and release the cutting blade in the seating. A beam is secured by the wedge locking bolts, to protect the wedge and especially the threaded drillings from being clogged by waste material and debris and ensure that they remain serviceable.

Description

La présente invention concerne d'une façon non limitative, l'implantation de lames couteaux, dans la partie tournante d'un broyeur granulateur ou d'une déchiqueteuse. The present invention relates in a nonlimiting manner, the implantation of knife blades, in the rotating part of a granulator mill or a shredder.

Ce broyeur connu, comporte une partie tournante sensiblement cylindrique, tournant autour d'un axe et armée sur sa périphérie de lames couteaux de longueur plusieurs fois plus faible que la longueur du rotor, qui sont emmanchées chacune dans un logement foré dans une position sensiblement, mais non impérativement radiale. This known mill has a substantially cylindrical rotating part, rotating about an axis and armed on its periphery with knife blades of length several times shorter than the length of the rotor, which are each fitted into a housing drilled in a substantially position, but not necessarily radial.

L'emmanchement des lames couteaux dans leur logement exige un usinage de haute précision tant pour le logement que pour la lame couteau, il est de ce fait coûteux. Ces machines travaillant souvent à l'extérieur, sont soumises aux intempéries, la partie emmanchée d'une lame couteau s'oxyde, pour arracher une lame couteau usée ou détériorée il faut avoir recourt à un outillage comportant de puissants vérins. La réparation sur place est pratiquement impossible. Fig : 1
Un broyeur de ce type est décrit dans le document 2511266.The fitting of the knife blades into their housing requires high precision machining for both the housing and the knife blade, it is therefore expensive. These machines often working outside, are subjected to bad weather, the fitted part of a knife blade oxidizes, to tear off a worn or deteriorated knife blade it is necessary to have recourse to a tool comprising powerful jacks. On-site repair is practically impossible. Fig: 1
A mill of this type is described in document 2511266.

La présente invention a pour but d'éviter ces inconvénients en proposant un montage de lame couteau, facilement démontable et remontable par l'utilisateur, à l'aide d'un outillage conventionnel. The object of the present invention is to avoid these drawbacks by proposing a mounting of a knife blade, which can be easily dismantled and reassembled by the user, using conventional tools.

Suivant une caractéristique de l'invention, cette machine à granuler rotative à couteaux comporte une partie tournante sensiblement cylindrique, armée sur la périphérie de lames couteaux de longueur plusieurs fois plus courte que sa longueur, et qui sont positionnées chacune dans un logement de forme allongée, qui a pour section transversale un trapèze rectangle. Ce logement est foré dans le cylindre. According to a characteristic of the invention, this rotary knife granulating machine comprises a substantially cylindrical rotating part, armed on the periphery of knife blades of length several times shorter than its length, and which are each positioned in an elongated housing , which has a rectangular trapezium as its cross section. This housing is drilled in the cylinder.

Suivant une caractéristique de l'invention, les lames couteaux qui représentent un parallélépipède rectangle, sont immobilisées dans leur logement par l'enfoncement d'une ou plusieurs cale en forme de coin. According to a characteristic of the invention, the knife blades which represent a rectangular parallelepiped, are immobilized in their housing by driving in one or more wedge wedges.

Suivant une caractéristique supplémentaire de l'invention, chaque cale en forme de coin est traversée par une ou plusieurs vis ; chaque vis vient se fixer dans un trou taraudé dans le rotor, au fond du logement. En manoeuvrant cette vis on enfonce cette cale, provoquant un serrage énergique de la lame couteau dans son logement. According to an additional characteristic of the invention, each wedge-shaped wedge is crossed by one or more screws; each screw is fixed in a tapped hole in the rotor, at the bottom of the housing. By operating this screw, this wedge is pushed in, causing an energetic tightening of the knife blade in its housing.

Suivant une caractéristique supplémentaire de l'invention, chaque cale en coin est traversée par un ou plusieurs trous taraudés. Une vis manoeuvrée dans chaque trou taraudé, permet ne prenant appui sur le fond du logement d'extraire facilement, sans la détériorer une cale coin bloquée. On libère ainsi les lames couteaux. According to an additional characteristic of the invention, each wedge wedge is crossed by one or more tapped holes. A screw operated in each tapped hole, allows not taking support on the bottom of the housing to extract easily, without damaging a wedge wedge blocked. The knife blades are thus released.

Suivant une caractéristique supplémentaire de l'invention, le dessus de chaque cale en forme de coin est protégé par une réglette ou parallélépipède rectangle, traversée et fixée par les vis servant à enfoncer et maintenir la cale coin. Cette réglette recouvre les trous taraudés de démontage de la cale coin, elle a pour but d'empcher que soient rendus inutilisables les trous taraudés, qui seraient bouchés par des déchets de matière broyée. According to an additional characteristic of the invention, the top of each wedge-shaped wedge is protected by a strip or rectangular parallelepiped, crossed and fixed by the screws used to drive in and hold the wedge wedge. This strip covers the tapped holes for dismantling the wedge wedge, its purpose is to prevent the tapped holes from being rendered unusable, which would be clogged with waste of crushed material.

Suivant une variante de l'invention, et plus particulièrement dans les machines très importantes, on remplace la lame couteau par un ensemble constitué de deux pièces principales, un support ou porte lame, fixé sur le rotor au moyen de l'un quelconque des dispositifs décrits précédemment, et un petit élément de métal très dur ou mise rapportée, fixé à l'extrémité supérieure du porte lame, et qui constitue les artes de coupe. According to a variant of the invention, and more particularly in very large machines, the knife blade is replaced by an assembly consisting of two main parts, a support or blade holder, fixed to the rotor by means of any of the devices described above, and a small element of very hard or added metal, fixed to the upper end of the blade holder, and which constitutes the cutting edges.

Le dessin annexé, donné à titre d'exemple non limitatif, permettra de mieux comprendre lcs caractéristiques dc l'invention. The appended drawing, given by way of nonlimiting example, will allow a better understanding of the characteristics of the invention.

Fig I est une section d'une machine suivant l'invention. Fig I is a section of a machine according to the invention.

Fig 2 est une section du logement, de la lame couteau et de la vis de maintien de la cale en forme de coin. Fig 2 is a section of the housing, the knife blade and the wedge-shaped wedge holding screw.

Fig 3 est une section du logement de la lame couteau montrant les trous taraudés d'extraction de la cale en forme de coin ; ainsi que la réglette de protection des trous taraudés. Fig 3 is a section of the knife blade housing showing the tapped wedge extraction holes in the wedge shape; as well as the tapped hole protection strip.

Fig 4 et 5 est une section d'une variante de l'invention avec porte-lame et mise rapportée. Fig 4 and 5 is a section of a variant of the invention with blade holder and attached setting.

On a représenté sur la figure 1 une partie tournante de machine réalisée conformément à l'invention. Cette machine comporte une partie tournant 1 sensiblement cylindrique, tournant autour d'un axe 0, et armée sur sa périphérie de lames de section constante et rectangulaire appelées lames couteaux, de longueur plusieurs fois plus courte que la longueur du rotor 1, qui sont positionnées chacune dans un logement trapézoïdal, foré dans un position voisine à une radiale. FIG. 1 shows a rotating part of the machine produced in accordance with the invention. This machine comprises a substantially cylindrical rotating part 1, rotating around an axis 0, and armed on its periphery with blades of constant and rectangular section called knife blades, of length several times shorter than the length of the rotor 1, which are positioned each in a trapezoidal housing, drilled in a position close to a radial.

Ces lames couteaux 2 sont maintenues bloquées chacune dans leur logement trapézoïdal par l'enfoncement d'une ou plusieurs cale en forme de coin 24. These knife blades 2 are kept each locked in their trapezoidal housing by the insertion of one or more wedge wedges 24.

La matière est divisée par une combinaison d'effet de choc entre les lames 2 du rotor, et une ou plusieurs lames couteaux 3 fixées au bâti 5. Sur la partie inférieure du bâti, dans la majorité des cas, mais non impérativement, une grille perforée 6 retient la matière imbroyée, et laisse passer les granules de matière dont le calibre est suffisamment réduit pour la traverser. The material is divided by a combination of impact between the blades 2 of the rotor, and one or more knife blades 3 fixed to the frame 5. On the lower part of the frame, in most cases, but not necessarily, a grid perforated 6 retains the unburned material, and lets through the material granules whose size is reduced enough to pass through.

Les cales en forme de coin 24 sont traversées par une ou plusieurs vis 16. Chaque vis 16 vient se fixer dans un trou taraudé dans le rotor, dans le fond du logement trapézoïdal. En vissant les vis 16, on produit l'enfoncement de la cale 24, qui vient serrer énergiquement la lame couteau 2 dans son logement. The wedge-shaped wedges 24 are crossed by one or more screws 16. Each screw 16 is fixed in a tapped hole in the rotor, in the bottom of the trapezoidal housing. By screwing the screws 16, the wedge 24 is pressed in, which energetically squeezes the knife blade 2 in its housing.

Les cales en forme de coin 24 sont traversées par un ou plusieurs trous taraudés 17 qui permettent d'arracher facilement, sans la détériorer, la cale coin 24. En effet en vissant dans ces trous taraudés 17, une vis qui prend appui au fond du logement, on exerce un effort d'arrachement sur la cale 24, qui se débloque. Par suite la lame 2 se trouve ainsi libérée. The wedge-shaped wedges 24 are crossed by one or more tapped holes 17 which make it possible to easily tear off, without damaging it, the wedge wedge 24. In effect by screwing into these tapped holes 17, a screw which bears on the bottom of the housing, there is a tearing force on the wedge 24, which is released. As a result the blade 2 is thus released.

Le dessus de la cale en coin 24 est protégée par une réglette ou parallélépipède rectangle à base polygonale 18, qui est fixée au sommet de la cale en coin par les vis 16, D'autre part la réglette couvre et obstrue les trous taraudés 17 de la cale en coin 24, empchant que ces derniers deviennent inutilisables, à cause de l'accumulation des particules de matière broyée qui ne manqueraient pas de boucher les trous taraudés de démontage 17. The top of the wedge wedge 24 is protected by a strip or rectangular parallelepiped with polygonal base 18, which is fixed to the top of the wedge wedge by the screws 16, on the other hand the strip covers and obstructs the tapped holes 17 of wedge wedge 24, preventing them from becoming unusable, due to the accumulation of particles of crushed material which would not fail to plug the tapped disassembly holes 17.

Suivant une autre variante, pour les machines très importantes, la lame couteau massive, entièrement en acier noble et coûteux est remplacée par un ensemble constitué de deux pièces principales ; un support au porte-lame 21, et un petit élément de métal très dur ou mise-rapporté 20, fixée à la partie supérieure du porte-lame et qui constitue l'arte de coupe
Fig 4 et 5. According to another variant, for very large machines, the massive knife blade, entirely made of noble and expensive steel, is replaced by an assembly consisting of two main parts; a support for the blade holder 21, and a small element of very hard or inserted metal 20, fixed to the upper part of the blade holder and which constitutes the cutting edge
Fig 4 and 5.

Claims (4)

l'enfoncement d'une ou plusieurs cales en forme de coin (24). driving one or more wedge-shaped wedges (24). fixées chacune dans un logement trapézoïdal foré dans le cylindre, par each fixed in a trapezoidal housing drilled in the cylinder, by lame (2) de longueur plusieurs fois plus courte que sa longueur, et qui sont blade (2) of length several times shorter than its length, and which are partie tournante sensiblement cylindrique (0), armée sur sa périphérie de substantially cylindrical rotating part (0), armed on its periphery with REVENDICATIONS 1. Machine à broyer et granuler rotative à lames couteaux (2), comportant une CLAIMS 1. Rotary grinding and granulating machine with knife blades (2), comprising a 2. Machine suivant la revendication 1 caractérisée en ce que chaque cale en2. Machine according to claim 1 characterized in that each wedge in forme de coin (24) est traversée par une ou plusieurs vis (16). Chaque vis one or more screws (16) pass through the wedge shape (24). Each screw (16) vient se fixer dans un trou taraudé dans le cylindre (0), au fond du (16) is fixed in a tapped hole in the cylinder (0), at the bottom of the logement. La manoeuvre de cette vis (16) permet d'enfoncer cette cale (24), housing. The operation of this screw (16) makes it possible to drive this wedge (24), provoquant un serrage énergique de la lame couteau (7) dans son logement. causing a forceful clamping of the knife blade (7) in its housing. 3. Machine suivant les revendications 1 et 2, caractérisée en ce que la cale en3. Machine according to claims 1 and 2, characterized in that the wedge in forme de coin (24) est traversée par un ou plusieurs trous taraudés (17). En one wedge shape (24) is crossed by one or more threaded holes (17). In vissant dans chacun des trous taraudés (17) une vis, qui prend appui au screwing in each of the threaded holes (17) a screw, which bears on the fond du logement, on exerce un effort d'arrachement sur la cale coin (24), qui bottom of the housing, a pulling force is exerted on the wedge wedge (24), which se débloque sans tre détériorée. Par suit la lame couteau (2) se trouver ainsi is released without being damaged. Then follows the knife blade (2) libérée. released. 4. Machine suivant les revendications 1,2 et 3, caractérisée en ce qu'une4. Machine according to claims 1,2 and 3, characterized in that a réglette (12), fixée et traversée par les mmes vis de fixation (16) que la cale strip (12), fixed and traversed by the same fixing screws (16) as the wedge en coin (24), protège la cale en coin (24), et en particulier les trous taraudés in the corner (24), protects the wedge wedge (24), and in particular the tapped holes (17) qu'elle bouche en les recouvrant. Cette réglette (12) empche les trous (17) that it covers by covering them. This strip (12) prevents the holes taraudés (11) de se remplir de déchets de matière et de devenir de ce fait tapped (11) to fill with material waste and thereby become inutilisable.  unusable.
FR9906539A 1999-05-19 1999-05-19 ASSEMBLY OF THE KNIFE BLADES OF A ROTARY CRUSHER BY CONICAL HOLDER Expired - Fee Related FR2785204B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005016539A1 (en) * 2003-08-18 2005-02-24 Jury Moiseevich Shteinberg Rotary crusher knife

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270968A (en) * 1963-05-20 1966-09-06 Mitts & Merrill Brush chipping machine
DE2827391A1 (en) * 1978-06-22 1980-01-03 Alpine Ag Rotor for a waste rubber and plastic disintegrating machine - has single cutters spaced out axially and projecting radially
FR2511266A1 (en) 1981-08-14 1983-02-18 Sosson Guy Rotor for rotary cutting machine - employing series of short double-edged replaceable knife blades
WO1996006680A1 (en) * 1994-09-01 1996-03-07 Nummek Automatic Oy A crusher blade assembly
DE29605113U1 (en) * 1996-03-19 1997-07-17 Wiedenhöfer, Klaus Martin, 82347 Bernried Device for shredding lumpy material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270968A (en) * 1963-05-20 1966-09-06 Mitts & Merrill Brush chipping machine
DE2827391A1 (en) * 1978-06-22 1980-01-03 Alpine Ag Rotor for a waste rubber and plastic disintegrating machine - has single cutters spaced out axially and projecting radially
FR2511266A1 (en) 1981-08-14 1983-02-18 Sosson Guy Rotor for rotary cutting machine - employing series of short double-edged replaceable knife blades
WO1996006680A1 (en) * 1994-09-01 1996-03-07 Nummek Automatic Oy A crusher blade assembly
DE29605113U1 (en) * 1996-03-19 1997-07-17 Wiedenhöfer, Klaus Martin, 82347 Bernried Device for shredding lumpy material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005016539A1 (en) * 2003-08-18 2005-02-24 Jury Moiseevich Shteinberg Rotary crusher knife

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