EP0945182B1 - Rotor pour broyeurs à percussion - Google Patents

Rotor pour broyeurs à percussion Download PDF

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Publication number
EP0945182B1
EP0945182B1 EP99104669A EP99104669A EP0945182B1 EP 0945182 B1 EP0945182 B1 EP 0945182B1 EP 99104669 A EP99104669 A EP 99104669A EP 99104669 A EP99104669 A EP 99104669A EP 0945182 B1 EP0945182 B1 EP 0945182B1
Authority
EP
European Patent Office
Prior art keywords
rotor
outer rims
blow
further cut
cut
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
EP99104669A
Other languages
German (de)
English (en)
Other versions
EP0945182A1 (fr
Inventor
Volker Heukamp
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
Hazemag and EPR GmbH
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Filing date
Publication date
Application filed by Hazemag and EPR GmbH filed Critical Hazemag and EPR GmbH
Publication of EP0945182A1 publication Critical patent/EP0945182A1/fr
Application granted granted Critical
Publication of EP0945182B1 publication Critical patent/EP0945182B1/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
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
    • 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

Definitions

  • the invention relates to a rotor for impact mills, which consists of several rotor disks Cast steel exists, the one another at their widened, touching hubs are welded and have a widened outer rim that compared to the hub is narrower on both sides by half what is the distance between adjacent outer rings for the passage of a welding machine to the hubs is required, and the outer rims of the rotor discs blow bar mounts forming by aligned in all rotor disks Edge recesses are interrupted.
  • Such a rotor is known from DE 41 02 692 C2, DE 41 27 875 C2 a further training of this rotor in terms of welding the Shows rotor discs on their hubs.
  • blow bars are in the rotor used, which are pressed by wedges against the bearing body and by means of the Bearing provided ribs and corresponding grooves in the strips against radial throwing are thus secured by centrifugal force.
  • the wedges will be in this known rotor operated by hydraulic pressure elements and in Held in the clamping position, as described in DE 41 03 301 C2.
  • the Blow bar change takes place in such a way that after loosening the wedges Blow bars are pulled out or pushed out in the axial direction or also characterized in that after removing the wedges, the blow bars radially from the edge cutouts are removed, for which purpose the rotor must be rotated such that the one to be removed Blow bar lies flat on her back. To do this, however, you must have the ribs of the Bearing bodies, which are also referred to as blow bar holders, are lifted. The installation of a new blow bar or even a rotated one takes place in the reverse sense.
  • a rotor with hydraulic pressure elements is expensive, they are also prone to failure.
  • the blow bars of the known rotor are not perpendicular upwards removable or not installable from above, because of the great weight of the Last problems arise when removing the wedges and also the pressure elements and the these load-bearing pressure line rails can be damaged.
  • Mechanically actuated pressure elements such as z.
  • Example from DE - GM 80 12 521 and DE - GM 85 20 900 are known are not in rotors of the generic type can be used because the widened outer rims do not allow access for such parts, especially not for tools that are used to fix or loosen such parts required are.
  • mechanical pressure elements, their Screw spindles or the like can be removed by flame cutting. The Inaccessibility is particularly given for small and medium-sized rotor sizes, whereby Mechanical pressure elements or holding parts for these sizes in particular for cost reasons required are.
  • the object of the invention is to provide a better one in a rotor of the generic type To ensure accessibility of the space between adjacent rotor disks and thus the use of mechanical pressure elements or holding parts for the blow bars to enable in order to reduce manufacturing costs as well as costs Maintenance work.
  • This problem is solved in that the axially parallel Edge recesses formed portions of the outer rims in the circumferential direction and against the direction of rotation of the rotor tapered from their sides are.
  • This tapering of the sections of the outer wreaths is between the neighboring ones Rotor discs created space that is large enough to insert holding parts by hand and use common tools to attach or detach them. It is from Advantage if the taper only after a piece of parallel course of the sides of the Inserts outer wreaths and this piece is each strong enough, by the Withstand blow bars on the outer wreaths, the subsequent taper as a support gradually to the thickness of the rotor disc is discontinued.
  • the center of the rotor is designed to decrease. This will make the accessibility further inside lying holding parts or the like still improved.
  • This bow and the leadership of the Rotor disc contour inwards is according to the penetration depth of the crushing material shaped into the rotor so that the face of the subsequent blow bar is fully used, but also wear along this Contour is avoided because the outside of the rotor shell in the shadow of each leading blow bar.
  • the invention further proposes that on the lateral surfaces of the rotor disks starting from the sections of the outer rims up to the hubs approximately radial, web-like reinforcing the rotor disks Thickenings are provided, the height of which in the axial direction of the rotor Outer wreath not towered over.
  • a particularly simple rotor is inventively created in that the Edge recesses starting from the outer circumference of the rotor against the Direction of rotation of the rotor are inclined inward and thus of the sections of the Outside wreaths are formed to form an abutment for the blow bars.
  • the edge recesses advantageously have at their front in the circumferential direction Side on another recess, whose one outwardly oriented surface parallel to a cutting plane perpendicular to the rotor axis and at a distance in Circulation direction runs behind the cutting plane and the one inner, approximately at right angles to the outward-facing surface as a base surface has, and in this further recess a holding piece is introduced with which the inserted blow bar is held against the respective abutment.
  • edge recesses of the rotor disks the blow bars to be accommodated therein are adapted, it is more inventive Meaning that the edge recesses for the blow bars one of the vertical axis each blow bar have the appropriate orientation and the vertical axis in one Angle ⁇ from 8 ° to 20 °, preferably 13 ° to the outwardly oriented surface of the further recesses runs.
  • the invention proposes that a below the further recess and approximately tangential to an imaginary rotor circle or parallel to the inner surface of the further recess web on both sides of the Rotor disks is cast on and this web contains a bore, and this bore aligned with a hole in the holding piece and these holes one Screw connection included for fastening the holding piece to the rotor body. There one such web and one such on each side of the respective rotor disk Screw connection is provided, the holding piece is held particularly securely.
  • Screw connections can be simple screws, e.g. Example: Allen screws with Use nuts that can be easily removed by flame cutting if necessary.
  • the blow bars are also screw connections for motor-driven ones Screwdriver accessible. Nevertheless, the screw connections are through each leading blow bar or by the leading section of the Outer wreaths protected from wear.
  • the rotor 1 shown is made of several rotor disks 2 made of cast steel composed, on their widened, touching hubs 3 are welded together.
  • the rotor disks 2 have a widened one Outer ring 4 on, compared to the hub 3 on both sides by half of it is narrower than the distance between adjacent outer rims 4 for the Passing a welder to the hubs 3 is required.
  • the outer wreaths are spaced from each other.
  • FIGS. 1 and 3 are interrupted by edge recesses 5, FIG. 1, which are in the rotor disks 2 extend.
  • the edge recesses of all rotor disks are aligned with one another and form brackets for blow bars 6, see Fig. 2.
  • Arrow b indicates such a taper.
  • the taper does not set immediately at the respective edge recess, but the sides 9 of the outer rims 4 run a bit parallel to each other, in order to Blow bars 6 corresponding forces acting on the outer rims 4
  • the following Tapering the sections 7 of the outer rims 4 is gradually as a support to the thickness the rotor disc is designed to run out, see FIGS. 1 and 3.
  • the edge recesses 5 are, as FIG. 1 further shows, from the outer circumference of the rotor 1 starting against the direction of rotation arrow a of the rotor inclined inwards and are overlapped by the sections 7 of the outer rims 4, so that they are an abutment form for the blow bars 6.
  • each edge recess 5 has its in Circulation direction front side on a further recess 11, one of which faces outwards directed surface 12 parallel to a perpendicular through the rotor axis x Cutting plane 13 and at a distance 14 in the circumferential direction behind the cutting plane runs.
  • a further surface 15 arranged approximately at right angles and forms a base.
  • Recess 11 is provided with a holding piece 16 with which the blow bar 6 used is held against the respective abutment.
  • the position of the blow bars 6 in the edge recesses 5 illustrate the figures 1 and 2.
  • the edge recesses have an orientation in the direction of their depth that the Alignment of the vertical axis 17 extending through the blow bars approximately corresponds.
  • the vertical axis is preferably at an acute angle of approximately 8 ° to 20 ° 13 ° to the outward surface 12, or to the parallel to it vertical cutting plane passing through the rotor axis at a Alignment of the rotor according to FIG. 1.
  • each further recess 11 is underneath each further recess 11 and approximately tangential to an imaginary rotor circle or parallel to the inner surface 15 cast on the further recess 11 extending web 18, with a bore 19, this bore is aligned with a bore 20 of the holding piece.
  • a screw connection 21 is a screw connection 21, by means of which the holding piece on Rotor body is attached. Such attachment is on both sides of the rotor disks 2 provided, see also Figures 2 and 3.
  • the outside aligned surface 12 of the further recess 11 in the axial direction of the rotor 1 to form obliquely, in connection with a correspondingly obliquely designed Surface on the holding pieces 16 is a wedge effect, the less the wedging the blow bars serve to facilitate the removal of the holding pieces if they are times, Fig. 2.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Induction Machinery (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Nozzles (AREA)
  • Centrifugal Separators (AREA)
  • Saccharide Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Claims (10)

  1. Rotor (1) pour broyeurs à impact, composé de plusieurs disques de rotor (2) en acier coulé, qui sont soudés ensemble sur leurs moyeux (3) élargis en contact les uns avec les autres et qui présentent une couronne extérieure (4) élargie, laquelle est plus étroite que le moyeu, et précisément, de chacun des deux côtés, de moitié de la distance entre deux couronnes extérieures (4) voisines, distance nécessaire pour introduire un appareil de soudage jusqu'aux moyeux (3), et les couronnes extérieures des disques de rotor (2) formant les porte-battoirs sont interrompues par des évidements périphériques (5) respectivement alignés, caractérise en ce que les parties (7) des couronnes extérieures (4) ainsi formées sont façonnées diminuant (b), à partir de leurs côtés, dans le sens de la circonférence et contre le sens de rotation (a).
  2. Rotor selon la revendication 1, caractérisé en ce que la diminution (b) ne commence qu'après un bout (8) à développement parallèle des côtés (9) des couronnes extérieures (4) et que ce bout (8) a respectivement une forme d'exécution forte assez pour supporter les forces agissant par les battoirs sur les couronnes extérieures, la diminution suivante étant faconnée peu à peu terminant en support à l'épaisseur du disque de rotor (2).
  3. Rotor selon la revendication 2, caractérisé en ce que le contour des disques de rotor (2) formé par les couronnes extérieures (4), à partir du diamètre maximum jusqu'à l'évidement périphérique (5) suivant, est façonné, contre le sens de rotation du rotor (a), diminuant et formant essentiellement un arc vers l'intérieur dans la direction du milieu du rotor.
  4. Rotor selon la revendication 1, caractérisé en ce qu'on a prévu, sur les surfaces latérales des disques de rotor (2), à partir des parties (7) des couronnes extérieures (4) jusqu'aux moyeux (3), des épaississements (10), semblables à des rails, se développant à peu près radialement, renforçant les disques de rotor (2), la hauteur de ces épaississements ne dépassant pas la respective couronne extérieure dans la direction d'axe du rotor.
  5. Rotor selon la revendication 1, caractérisé en ce que les évidements périphériques (5), à partir de la circonférence extérieure du rotor (1), sont orientés contre le sens de rotation du rotor vers l'intérieur et qu'ils sont ainsi surmontés par les parties (7) des couronnes extérieures (4) formant un contre-appui pour les battoirs (6).
  6. Rotor selon la revendication 5, caractérisé en ce que les évidements périphériques présentent, de leur côté avant (5) dans le sens de rotation, un autre évidement (11), dont une surface (12) orientée vers l'extérieur se développe parallèle à un plan de section vertical (13) passant à travers l'axe de rotor (x) à une distance (14) derrière le plan de section dans le sens de rotation, qui présente comme surface de base une surface (15) intérieure distincte se développant à peu près orthogonale par rapport à la surface (12) orientée vers l'extérieur, dans cet autre évidement (11) étant logé un porte-battoir (16), par lequel le battoir utilisé est fixé sur le contre-appui respectif.
  7. Rotor selon les revendications 5 et 6, caractérisé en ce que les évidements périphériques (5) pour les battoirs (6) présentent un alignement correspondant à l'axe en haut (17) de chaque battoir et que l'axe en haut passe à un angle α de 8° à 20° par rapport à la surface (12) orientée vers l'extérieur de l'autre évidement (11).
  8. Rotor selon la revendication 7, caractérisé en ce que l'axe en haut (17) de chaque battoir (6) passe à un angle α de 13° par rapport à la surface (12) orientée vers l'extérieur de l'autre évidement (11).
  9. Rotor selon la revendication 6, caractérisé en ce qu'un rail (18), situé au-dessous de l'autre évidement (11) et à peu près tangentiellement à un cercle de rotor imaginaire ou bien parallèlement à la surface intérieure (15) de l'autre évidement (11), est coulé en moule des deux côtés des disques de rotor (2), que ce rail est pourvu d'un trou (19), que ce trou est aligné sur un trou (20) du porte-battoir (16) et que ces trous (19, 20) contiennent un raccord à vis (21) pour la fixation du porte-battoir sur le corps de rotor.
  10. Rotor selon la revendication 6, caractérisé en ce que la surface (12) orientée vers l'extérieur de l'autre évidement (11) se développe obliquement par rapport à la direction d'axe du rotor (1) et que cette obliquité et celle du porte-battoir (16) correspondant font un angle de 5° relativement à la direction d'axe.
EP99104669A 1998-03-26 1999-03-09 Rotor pour broyeurs à percussion Expired - Lifetime EP0945182B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813310 1998-03-26
DE19813310A DE19813310C1 (de) 1998-03-26 1998-03-26 Rotor für Prallmühlen

Publications (2)

Publication Number Publication Date
EP0945182A1 EP0945182A1 (fr) 1999-09-29
EP0945182B1 true EP0945182B1 (fr) 2002-07-03

Family

ID=7862387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104669A Expired - Lifetime EP0945182B1 (fr) 1998-03-26 1999-03-09 Rotor pour broyeurs à percussion

Country Status (12)

Country Link
US (1) US6092752A (fr)
EP (1) EP0945182B1 (fr)
JP (1) JP4512213B2 (fr)
KR (1) KR100592048B1 (fr)
AT (1) ATE219970T1 (fr)
AU (1) AU753364B2 (fr)
BR (1) BR9901030A (fr)
CA (1) CA2265072C (fr)
DE (2) DE19813310C1 (fr)
DK (1) DK0945182T3 (fr)
ES (1) ES2179564T3 (fr)
ZA (1) ZA991971B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9387640B1 (en) 2011-08-01 2016-07-12 David D. B. Rice Recycling systems and methods for plastic waste
US9022306B2 (en) * 2013-03-09 2015-05-05 David D. B. Rice Recycling systems and methods for plastic waste
PL234585B1 (pl) * 2017-08-07 2020-03-31 Skotarek Wieslaw Profit Maszyna do rozdrabniania surowców mineralnych, zwłaszcza surowców skalnych

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214106A (en) * 1962-11-05 1965-10-26 H & G Tool Co Carbide tipped chipper
JPS423152Y1 (fr) * 1964-01-14 1967-02-24
JPS435833Y1 (fr) * 1965-12-15 1968-03-13
DE8012521U1 (de) * 1980-05-08 1980-08-21 Hazemag Dr. E. Andreas Gmbh & Co, 4400 Muenster Prallmuehlenrotor
JPS6048151A (ja) * 1983-08-25 1985-03-15 川崎重工業株式会社 両回転型衝撃式破砕機の付着防止装置
DE8520900U1 (de) * 1985-07-19 1985-09-19 Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster Einrichtung zum Festlegen von Schlagleisten in Rotorscheiben
DE4103301A1 (de) * 1990-03-01 1991-09-12 Salzgitter Maschinenbau Einrichtung zum festlegen von schlagleisten in randausschnitten von prallmuehlenrotoren
ZA91909B (en) * 1990-03-01 1992-02-26 Salzgitter Maschinenbau Rotor for impact crushers or hammer mills
DE4102692C2 (de) * 1990-03-01 1994-06-23 Masch Service Gmbh Rotor für Prall- oder Hammermühlen
DE4127875C2 (de) * 1991-01-30 1995-03-30 Noell Serv & Maschtechn Gmbh Rotor für Prall- oder Hammermühlen und Verfahren zum Herstellen eines Rotors
DE59100297D1 (de) * 1990-03-01 1993-09-23 Masch Service Gmbh Einrichtung zum festlegen von schlagleisten in randausschnitten von prallmuehlenrotoren.
JPH044052A (ja) * 1990-04-19 1992-01-08 Kurimoto Ltd ハンマーミルのハンマー
US5381973A (en) * 1992-08-26 1995-01-17 Noell Service Und Maschinentechnik Gmbh Rotor for impact crushes or hammer mills
BE1008041A3 (fr) * 1994-02-04 1996-01-03 Magotteaux Int Rotor pour concasseur a percussion.
DE19813308C2 (de) * 1998-03-26 2002-02-28 Hazemag & Epr Gmbh Schlagleiste für Prallmühlenrotoren und Rotor für Prallmühlen

Also Published As

Publication number Publication date
ATE219970T1 (de) 2002-07-15
AU753364B2 (en) 2002-10-17
KR19990078184A (ko) 1999-10-25
ZA991971B (en) 1999-09-27
AU2141299A (en) 1999-10-07
EP0945182A1 (fr) 1999-09-29
JP4512213B2 (ja) 2010-07-28
JPH11319600A (ja) 1999-11-24
DK0945182T3 (da) 2002-10-28
CA2265072C (fr) 2007-08-07
KR100592048B1 (ko) 2006-06-20
CA2265072A1 (fr) 1999-09-26
US6092752A (en) 2000-07-25
BR9901030A (pt) 2000-03-08
DE59901892D1 (de) 2002-08-08
DE19813310C1 (de) 1999-10-28
ES2179564T3 (es) 2003-01-16

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