EP0444432B1 - Rotor pour broyeur à percussion ou a marteaux - Google Patents

Rotor pour broyeur à percussion ou a marteaux Download PDF

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Publication number
EP0444432B1
EP0444432B1 EP91101421A EP91101421A EP0444432B1 EP 0444432 B1 EP0444432 B1 EP 0444432B1 EP 91101421 A EP91101421 A EP 91101421A EP 91101421 A EP91101421 A EP 91101421A EP 0444432 B1 EP0444432 B1 EP 0444432B1
Authority
EP
European Patent Office
Prior art keywords
rotor
naves
disks
rotor disks
impact
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 - Lifetime
Application number
EP91101421A
Other languages
German (de)
English (en)
Other versions
EP0444432A1 (fr
EP0444432B2 (fr
Inventor
Rolf Dipl.-Ing. König
Gerhard Hemesath
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.)
Hazemag and EPR GmbH
Original Assignee
Noell Service und Maschinentechnik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6401141&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0444432(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Noell Service und Maschinentechnik GmbH filed Critical Noell Service und Maschinentechnik GmbH
Publication of EP0444432A1 publication Critical patent/EP0444432A1/fr
Publication of EP0444432B1 publication Critical patent/EP0444432B1/fr
Application granted granted Critical
Publication of EP0444432B2 publication Critical patent/EP0444432B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/30—Driving mechanisms
    • 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

Definitions

  • the invention relates to a rotor for impact or hammer mills, which consists of several welded rotor disks made of cast steel, which have widened, touching hubs.
  • the rotor disks have been welded to one another in their outer region (DE-U 18 31 058, DE-U 66 01 200) in order to achieve sufficient rigidity of the rotor body.
  • the weld seams are interrupted. This also applies to impact mill rotors welded together in this way, but the weld seams are long and expensive. The manufacture of such rotors is correspondingly expensive.
  • the outer areas of the rotors are very exposed to wear, so that welds created there are also affected.
  • the object of the invention is to weld rotors assembled from a plurality of rotor disks by welding in a safe and cost-saving manner. This is done in that the rotor disks are welded together by ring welds on the outer edges of their hubs.
  • a particularly favorable effect in the production of these ring weld seams is to ensure that the rotor disks, when they rest against each other with their hubs, have a certain distance from one another in the outer zones, so that the welding machine used can reach all the way up to the hubs. Then there is a very simple and quick welding of the rotor disks if the rotor disks, for example, which are centered with respect to one another according to the invention and temporarily provisionally braced together on a shaft, are slowly rotated. The ring welds can then all be made simultaneously by fixed welding equipment. In contrast, the welds required in the known welded rotors can only be produced by means of hand-held devices.
  • a rotor is known (DE-B 18 08 322), in which ring-shaped rotor disks are welded with their inner edge onto a drum serving as an axis.
  • these are not flat ring disks, but rather those which consist of axially offset sectors so that no continuous ring weld seams can be formed.
  • the shaft connection is also difficult to manufacture in this embodiment and causes problems due to eccentricity of the components.
  • two weld seams have to be produced for each ring disk, while in the inventive design of the rotor, each ring weld seam connects two adjacent rotor disks to one another. This creates a stable rotor body, e.g. does not need to be guided on a shaft over its entire length, but can only be supported on the shaft at its two ends, so that a more precise unscrewing of the rotor disks is only partially necessary at the two end disks.
  • the rotor disks have a widened outer ring which is half that of the hub on both sides compared to the hub the narrower of which is what is required as the distance between adjacent outer rims for the passage of welding tongs to the hubs.
  • the rotor therefore consists exclusively of the rotor disks produced in cast steel and is consequently very cheap to manufacture.
  • the parts that form the widened outer ring of the rotor disks are machined before the hubs are welded in order to create planar contact surfaces for the blow bars. Since the rotor disks with their hubs are only simple components and the bores for the locating bolts can also be made very precisely, this eliminates the very complex machining of a finished rotor over the entire width.
  • the rotors shown each consist of a plurality of rotor disks 1 made of cast steel, which are provided with a central cylindrical opening 2 and a wider hub 3 surrounding them. On the outer edge, depending on the type of comminution tool provided on them (impact hammer 4, impact bars 5), they have wider bearing bodies 6 and 7, respectively. In the cases of FIGS. 1-8, they are designed such that a gap 8 is formed between the bearing bodies of adjacent rotor disks 1 remains.
  • the hubs 3 of adjacent rotor disks 1 are firmly connected to one another at their outer edges by ring weld seams 9.
  • ring weld seams 9 To produce these ring weld seams, the rotor disks centered on the hubs 3 by means of dowel pins 10 and braced against one another are slowly rotated, fixed welding devices which reach the hubs through the gaps 8 producing the weld seam.
  • the impact hammers 4 are held between the disks for the final assembly in the hammer mill rotor shown in FIGS. 1 and 2, and their axes 11 are inserted into the bearing bodies 6 from the end face of the rotor into the continuous receiving bores, while in the case in FIG 3 and 4, the impact mill rotor, the blow bars 5 are inserted into the edge cutouts 12 from the outside and are pressed by wedges 13 and pressure elements 14 against the bearing bodies 7 serving for support.
  • 5 to 8 illustrate that rotors of different widths can be produced from rotor disks of different hub widths, so that very narrowly differentiated offers are possible with low inventory.
  • only two rotor disks 1 can also be provided, if appropriate with the interposition of a hub-like ring 3 ', whereby in a modification of the invention, axially parallel support beams 15 are welded to the disk edges 1' of the rotor disks.
  • the support beams are only attached after the rotor-hub body has been welded together, so that all-round welding, also automated, is also possible in this embodiment provided for rotors of smaller impact mills.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Saccharide Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Claims (6)

1. Rotor pour moulins à chocs ou à marteaux, composé de plusieurs disques de rotor (1) en fonte d'acier soudés les uns aux autres, qui comportent des moyeux (3) élargis en contact les uns contre les autres, caractérisé en ce que les disques de rotor (1) sont soudés les uns aux autres au moyen de cordons de soudure annulaires (9) au niveau des arêtes extérieures de leurs moyeux (3).
2. Rotor selon la revendication 1, caractérisé en ce qu'en dehors de moyeux (3) il n'est prévu que des parties de disque de rotor (6, 7) qui présentent une distance par rapport à des parties correspondantes de disques de rotor voisins, cette distance étant suffisamment importante pour le passage d'une pince de soudure jusqu'au moyeu.
3. Rotor selon la revendication 1 et destiné à des moulins à chocs, caractérisé en ce que les disques de rotor (1 ) présentent une couronne extérieure (7) élargie qui est plus étroite par comparaison avec le moyeu (3) des deux côtés et d'environ la moitié de celui-ci, comme il est nécessaire en tant que distance entre couronnes extérieures voisines pour le passage d'une pince de soudure jusqu'au moyeu (3).
4. Rotor selon la revendication 3, caractérisé en ce qu'on utilise des disques de rotor avec des disques de moyeu (1) avec des moyeux (3) de largeurs différentes.
5. Rotor selon la revendication 1 et destiné à des moulins à chocs, caractérisé en ce que les disques de rotor (1 ) reliés par des cordons de soudure annulaires (9) comportent des barres de support (15) parallèles à l'axe et continues, destinées à des barrettes de frappe (5), ces barres de support étant soudées à l'extérieur sur les bordures des disques 1' après raccordement des moyeux (3, 3').
6. Rotor selon la revendication 3, caractérisé en ce que les parties qui constituent la couronne extérieure élargie (7) des disques de rotor (1) sont usinées avant le soudage des moyeux (3) afin de réaliser des surfaces de contact planes pour les barrettes de frappe.
EP91101421A 1990-03-01 1991-02-04 Rotor pour broyeur à percussion ou a marteaux Expired - Lifetime EP0444432B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4006328 1990-03-01
DE4006328 1990-03-01

Publications (3)

Publication Number Publication Date
EP0444432A1 EP0444432A1 (fr) 1991-09-04
EP0444432B1 true EP0444432B1 (fr) 1993-12-08
EP0444432B2 EP0444432B2 (fr) 2000-10-18

Family

ID=6401141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101421A Expired - Lifetime EP0444432B2 (fr) 1990-03-01 1991-02-04 Rotor pour broyeur à percussion ou a marteaux

Country Status (14)

Country Link
US (1) US5392999A (fr)
EP (1) EP0444432B2 (fr)
JP (1) JP3049099B2 (fr)
KR (1) KR0168673B1 (fr)
AT (1) ATE98137T1 (fr)
AU (1) AU634349B2 (fr)
BR (1) BR9100821A (fr)
CA (1) CA2037308C (fr)
DE (1) DE59100672D1 (fr)
DK (1) DK0444432T4 (fr)
ES (1) ES2048514T5 (fr)
GR (1) GR3035276T3 (fr)
MX (1) MX174627B (fr)
ZA (1) ZA91909B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2095888T3 (es) * 1991-08-22 1997-03-01 Noell Serv & Maschtechn Gmbh Rotor para molinos de impacto o de martillos.
US5381973A (en) * 1992-08-26 1995-01-17 Noell Service Und Maschinentechnik Gmbh Rotor for impact crushes or hammer mills
DE4330962C2 (de) * 1993-09-09 1998-08-27 Sivyer Steel Corp Hammermühle
US5443216A (en) * 1994-09-12 1995-08-22 Lajoie; Donald L. Hammer mill
DE19813310C1 (de) * 1998-03-26 1999-10-28 Noell Serv & Maschtechn Gmbh Rotor für Prallmühlen
US6047912A (en) * 1998-05-01 2000-04-11 Smith; Leward N. Break-away processing tool for a waste processing machine
CA2316471A1 (fr) * 2000-08-02 2002-02-02 Guy Gaudreault Tete de coupe a rotor horizontal pour applications forestieres
US6517020B1 (en) 2000-09-08 2003-02-11 Leward N. Smith Replaceable raker assembly for processing tool of waste processing machine
US6591973B2 (en) 2001-06-04 2003-07-15 Leward N. Smith Sideboard assembly for waste processing machine
US7726594B2 (en) * 2001-10-03 2010-06-01 Leward Nile Smith Multi-functional tool assembly for processing tool of material processing machine
US6845931B1 (en) 2001-10-03 2005-01-25 Leward Nile Smith Multi-functional tool assembly for processing tool of waste processing machine
US7384011B1 (en) 2001-10-03 2008-06-10 Leward Nile Smith Multi-functional tool assembly for processing tool of waste processing machine
US7007874B1 (en) 2002-01-08 2006-03-07 Leward Nile Smith Shroud assembly for waste processing machine
US6804871B1 (en) 2002-05-03 2004-10-19 Leward Nile Smith Method for aligning clutch assembly
US7163166B1 (en) 2004-03-31 2007-01-16 Leward Nile Smith Rotatable assembly for machines
CN1817461B (zh) * 2005-02-07 2011-07-27 缪文生 节能型破碎、打砂、粉碎机用转子

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603316A (en) * 1952-07-15 Brake rotor
DE18653C (de) * J. M. BEISSBARTH in Nürnberg Neuerungen an Pinselfassungen
US2440698A (en) * 1945-11-23 1948-05-04 Central Mine Equipment Company Manufacture of flighted articles
DE1831058U (de) * 1961-03-07 1961-05-10 Hazemag Hartzerkleinerung Und Umlaeufer fuer schleuderprallmuehlen hoher drehzahl.
DE1257541B (de) * 1965-05-06 1967-12-28 Hazemag Hartzerkleinerung Schlagleiste fuer Rotoren von Prallmuehlen
DE6601200U (de) * 1966-01-03 1969-02-27 Miag Gmbh Schlaegerrotor fuer schlaegermuehlen
US3531055A (en) * 1967-11-01 1970-09-29 Gunter Alt Hammer crusher
FR1589790A (fr) * 1968-10-22 1970-04-06
DE1808322C3 (de) * 1968-11-12 1973-11-08 Miag Muehlenbau Und Industrie Gmbh, 3300 Braunschweig Rotor fur Hammerbrecher
DE2418619A1 (de) * 1974-04-18 1975-11-06 Peters Ag Claudius Rotor fuer hammerbrecher
DE3137931A1 (de) * 1981-09-24 1983-04-14 Kirchner GmbH & Co Spezialmaschinen, 7081 Essingen Hackmaschine
DE3203324C2 (de) * 1982-02-02 1985-07-18 Maschinenfabrik B.Maier GmbH & Co KG, 4800 Bielefeld Schleudermühle
US4651934A (en) * 1985-02-06 1987-03-24 Bender Martin P Pulverizing mill
DE3905492A1 (de) * 1989-02-23 1990-08-30 Hoffmann Albert Kg Schutzschild fuer scheiben eines hammerbrecherrotors
US5004169A (en) * 1989-11-22 1991-04-02 Cedarapids, Inc. Impeller bar assembly with adjustable locking mechanism

Also Published As

Publication number Publication date
JP3049099B2 (ja) 2000-06-05
DK0444432T3 (da) 1994-03-07
EP0444432A1 (fr) 1991-09-04
AU634349B2 (en) 1993-02-18
KR0168673B1 (ko) 1999-01-15
US5392999A (en) 1995-02-28
ATE98137T1 (de) 1993-12-15
ES2048514T5 (es) 2001-01-16
ES2048514T3 (es) 1994-03-16
KR910016382A (ko) 1991-11-05
DE59100672D1 (de) 1994-01-20
GR3035276T3 (en) 2001-04-30
MX174627B (es) 1994-05-30
CA2037308C (fr) 1998-02-10
BR9100821A (pt) 1991-11-05
AU7135591A (en) 1991-09-05
DK0444432T4 (da) 2000-12-04
ZA91909B (en) 1992-02-26
EP0444432B2 (fr) 2000-10-18
JPH04219152A (ja) 1992-08-10
CA2037308A1 (fr) 1991-09-02

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