EP0945182B1 - Rotor für Prallmühlen - Google Patents
Rotor für Prallmühlen Download PDFInfo
- 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
Links
Images
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.
Landscapes
- 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)
Description
- Fig. 1
- einen Rotor für eine Prallmühle gemäß der Erfindung in Stirnansicht,
- Fig. 2
- einen Ausschnitt des Rotors in größerem Maßstab und
- Fig. 3
- einen Rotor gemäß der Erfindung in Seitenansicht und Teilschnitt entsprechend der Schnittlinie A - A in Fig. 1, halbseitig, sowie halbseitig in Seitenansicht.
Claims (10)
- Rotor ( 1 ) für Prallmühlen, der aus mehreren Rotorscheiben ( 2 ) aus Stahlguß besteht, die an ihren verbreiterten, einander berührenden Naben ( 3 ) miteinander verschweißt sind und die einen verbreiterten Außenkranz ( 4 ) aufweisen, der im Vergleich zu der Nabe beiderseits um die Hälfte dessen schmaler ist, was als Abstand zwischen benachbarten Außenkränzen ( 4 ) für das Hindurchführen eines Schweißgerätes zu den Naben ( 3 ) erforderlich ist, und die Außenkränze der Rotorscheiben ( 2 ) Schlagleistenhalterungen bildend durch in allen Rotorscheiben zueinander fluchtend angeordneten Randausnehmungen ( 5 ) unterbrochen sind, dadurch gekennzeichnet, daß die so gebildeten Teilstücke ( 7 ) der Außenkränze ( 4 ) in Umfangsrichtung und entgegen der Drehrichtung (a) von ihren Seiten her sich verjüngend (b) ausgebildet sind.
- Rotor nach Anspruch 1, dadurch gekennzeichnet, daß die Verjüngung (b) erst nach einem Stück ( 8 ) parallelem Verlauf der Seiten ( 9 ) der Außenkränze ( 4) einsetzt und dieses Stück ( 8 ) jeweils stark genug ausgebildet ist, den durch die Schlagleisten auf die Außenkränze wirkenden Kräften standzuhalten, wobei die nachfolgende Verjüngung als Stütze allmählich auf die Dicke der Rotorscheibe ( 2 ) auslaufend ausgebildet ist.
- Rotor nach Anspruch 2, dadurch gekennzeichnet, daß die äußere, durch die Außenkränze ( 4 ) gebildete Kontur der Rotorscheiben ( 2 ) vom maximalem Durchmesser ausgehend entgegen der Drehrichtung des Rotors (a) bis zur nachfolgenden Randausnehmung ( 5 ) im wesentlichen einen Bogen bildend nach innen in Richtung Rotormitte abnehmend ausgebildet ist
- Rotor nach Anspruch 1, dadurch gekennzeichnet, daß auf den seitlichen Flächen der Rotorscheiben ( 2 ) von den Teilstücken ( 7 ) der Außenkränze ( 4 ) ausgehend bis zu den Naben ( 3 ) in etwa radial verlaufende, die Rotorscheiben ( 2) verstärkende stegartige Verdickungen ( 10 ) vorgesehen sind, deren Höhe in Achsrichtung des Rotors den jeweiligen Außenkranz nicht überragt.
- Rotor nach Anspruch 1, dadurch gekennzeichnet, daß die Randausnehmungen ( 5 ) vom äußeren Umfang des Rotors ( 1 ) ausgehend entgegen der Drehrichtung des Rotors nach innen geneigt sind und somit von den Teilstücken ( 7 ) der Außenkränze ( 4 ) ein Widerlager für die Schlagleisten ( 6 ) bildend übergriffen sind.
- Rotor nach Anspruch 5, dadurch gekennzeichnet, daß die Randausnehmungen an ihrer in Umlaufrichtung vorderen Seite ( 5 ) eine weitere Ausnehmung ( 11 ) aufweisen, deren eine nach außen ausgerichtete Fläche ( 12 ) parallel zu einer senkrecht durch die Rotorachse ( x ) gehenden Schnittebene ( 13 ) und in einem Abstand ( 14 ) in Umlaufrichtung hinter der Schnittebene verläuft und die eine innere, in etwa rechtwinklig zur nach außen ausgerichteten Fläche ( 12 ) verlaufende weitere Fläche ( 15 ) als Grundfläche aufweist, und in diese weitere Ausnehmung ( 11 ) ein Haltestück ( 16 ) eingebracht ist, mit dem die eingesetzte Schlagleiste gegen das jeweilige Widerlager gehalten ist.
- Rotor nach Anspruch 5 und 6, dadurch gekennzeichnet, daß die Randausnehmungen ( 5 ) für die Schlagleisten ( 6 ) eine der Hochachse ( 17 ) einer jeden Schlagleiste entsprechende Ausrichtung aufweisen und die Hochachse in einem Winkel α von 8° bis 20° zu der nach außen ausgerichteten Fläche (12) der weiteren Ausnehmung ( 11 ) verläuft.
- Rotor nach Anspruch 7, dadurch gekennzeichnet, daß die Hochachse (17) einer jeden Schlagleiste (6) in einem Winkel α von 13 ° zu der nach außen ausgerichteten Fläche (12) der weiteren Ausnehmung (11) verläuft.
- Rotor nach Anspruch 6, dadurch gekennzeichnet, daß ein unterhalb der weiteren Ausnehmung ( 11 ) und in etwa tangential zu einem imaginären Rotorkreis bzw. parallel zur inneren Fläche (15) der weiteren Ausnehmung (11) verlaufender Steg (18) beidseitig an die Rotorscheiben ( 2 ) angegossen ist und dieser Steg eine Bohrung ( 19 ) enthält, und diese Bohrung mit einer Bohrung (20) des Haltestückes ( 16 ) fluchtet und diese Bohrungen ( 19, 20 ) eine Schraubverbindung ( 21 ) enthalten zur Befestigung des Haltestückes am Rotorkörper.
- Rotor nach Anspruch 6, dadurch gekennzeichnet, daß die nach außen ausgerichtete Fläche ( 12 ) der weiteren Ausnehmung (11) in Achsrichtung des Rotors ( 1 ) schräg verläuft und diese Schräge und die des zugehörigen Haltestückes ( 16 ) einen Winkel von 5° zur Achsrichtung aufweist.
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 (de) | 1999-09-29 |
EP0945182B1 true EP0945182B1 (de) | 2002-07-03 |
Family
ID=7862387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99104669A Expired - Lifetime EP0945182B1 (de) | 1998-03-26 | 1999-03-09 | Rotor für Prallmühlen |
Country Status (12)
Country | Link |
---|---|
US (1) | US6092752A (de) |
EP (1) | EP0945182B1 (de) |
JP (1) | JP4512213B2 (de) |
KR (1) | KR100592048B1 (de) |
AT (1) | ATE219970T1 (de) |
AU (1) | AU753364B2 (de) |
BR (1) | BR9901030A (de) |
CA (1) | CA2265072C (de) |
DE (2) | DE19813310C1 (de) |
DK (1) | DK0945182T3 (de) |
ES (1) | ES2179564T3 (de) |
ZA (1) | ZA991971B (de) |
Families Citing this family (3)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3214106A (en) * | 1962-11-05 | 1965-10-26 | H & G Tool Co | Carbide tipped chipper |
JPS423152Y1 (de) * | 1964-01-14 | 1967-02-24 | ||
JPS435833Y1 (de) * | 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 |
ATE93166T1 (de) * | 1990-03-01 | 1993-09-15 | Masch Service Gmbh | 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 |
DE4127875C2 (de) * | 1991-01-30 | 1995-03-30 | Noell Serv & Maschtechn Gmbh | Rotor für Prall- oder Hammermühlen und Verfahren zum Herstellen eines Rotors |
DE4102692C2 (de) * | 1990-03-01 | 1994-06-23 | Masch Service Gmbh | Rotor für Prall- oder Hammermühlen |
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 |
-
1998
- 1998-03-26 DE DE19813310A patent/DE19813310C1/de not_active Expired - Fee Related
-
1999
- 1999-03-09 DK DK99104669T patent/DK0945182T3/da active
- 1999-03-09 DE DE59901892T patent/DE59901892D1/de not_active Expired - Lifetime
- 1999-03-09 CA CA002265072A patent/CA2265072C/en not_active Expired - Lifetime
- 1999-03-09 ES ES99104669T patent/ES2179564T3/es not_active Expired - Lifetime
- 1999-03-09 AT AT99104669T patent/ATE219970T1/de active
- 1999-03-09 EP EP99104669A patent/EP0945182B1/de not_active Expired - Lifetime
- 1999-03-11 ZA ZA9901971A patent/ZA991971B/xx unknown
- 1999-03-18 US US09/271,759 patent/US6092752A/en not_active Expired - Lifetime
- 1999-03-24 KR KR1019990009980A patent/KR100592048B1/ko not_active IP Right Cessation
- 1999-03-25 BR BR9901030-5A patent/BR9901030A/pt not_active IP Right Cessation
- 1999-03-25 JP JP08183899A patent/JP4512213B2/ja not_active Expired - Lifetime
- 1999-03-25 AU AU21412/99A patent/AU753364B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA2265072A1 (en) | 1999-09-26 |
ATE219970T1 (de) | 2002-07-15 |
AU2141299A (en) | 1999-10-07 |
AU753364B2 (en) | 2002-10-17 |
KR19990078184A (ko) | 1999-10-25 |
CA2265072C (en) | 2007-08-07 |
ES2179564T3 (es) | 2003-01-16 |
US6092752A (en) | 2000-07-25 |
EP0945182A1 (de) | 1999-09-29 |
JP4512213B2 (ja) | 2010-07-28 |
ZA991971B (en) | 1999-09-27 |
DK0945182T3 (da) | 2002-10-28 |
DE19813310C1 (de) | 1999-10-28 |
DE59901892D1 (de) | 2002-08-08 |
BR9901030A (pt) | 2000-03-08 |
JPH11319600A (ja) | 1999-11-24 |
KR100592048B1 (ko) | 2006-06-20 |
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