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EP2063991A1 - Mill for milling rough, stone-like bulk material with parallel to the axis drive - Google Patents

Mill for milling rough, stone-like bulk material with parallel to the axis drive

Info

Publication number
EP2063991A1
EP2063991A1 EP07802753A EP07802753A EP2063991A1 EP 2063991 A1 EP2063991 A1 EP 2063991A1 EP 07802753 A EP07802753 A EP 07802753A EP 07802753 A EP07802753 A EP 07802753A EP 2063991 A1 EP2063991 A1 EP 2063991A1
Authority
EP
European Patent Office
Prior art keywords
gear
shaft
mill
grinding table
motor
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.)
Granted
Application number
EP07802753A
Other languages
German (de)
French (fr)
Other versions
EP2063991B1 (en
Inventor
Christian Brammer
Ines Junge
Wolf Krieger
Axel MÖHLE
Christian Schiller
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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
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Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP2063991A1 publication Critical patent/EP2063991A1/en
Application granted granted Critical
Publication of EP2063991B1 publication Critical patent/EP2063991B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/006—Ring or disc drive gear arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/007—Mills with rollers pressed against a rotary horizontal disc

Definitions

  • the present invention relates to a mill for grinding of coarse stone-like bulk material, for example ore or coal, having a rotatable about a vertical axis of rotation Mahltel ⁇ ler, wherein the grinding table is at ⁇ drivable by an electric motor which has a motor shaft with a shaft axis ⁇ ,
  • Such mills are well known and are ⁇ example, by the company Polysius AG, Germany, under the Ty ⁇ penbezelen Dorol and quadrupole.
  • the mill has a grinding chamber 1.
  • Mahl ⁇ room 1 has a Mahlraumteil 2 and a circulating around the grinding chamber 1 Mahlraumwand 3.
  • Mahlraumboden 2 On the Mahlraumboden 2 a grinding table 4 is mounted such that it is rotatable about a vertical axis of rotation 5.
  • the grinding table 4 is drivable ⁇ bar by means of an electric motor 6.
  • the electric motor 6 has a motor shaft 7 with a shaft axis 8.
  • the electric motor 6 is arranged laterally below the grinding table 4.
  • the shaft axis 8 extends hori zontal ⁇ .
  • the motor shaft 7 acts via a deflection or angle ⁇ gear 9 - eg a bevel gear - on the grinding table 4.
  • the deflection gear 9 causes in addition to the deflection a Implementation of a relatively high speed of the electric motor 6 to a much lower speed of the grinding table. 4
  • the grinding chamber 1 is in a known manner - for example by means of a Schuttloise not shown - coarse, rock ⁇ like bulk material 10 is supplied, for example, coal or ore lumps. Due to the centrifugal force, the bulk material 10 is in the direction of the grinding chamber wall 3 radially outward ⁇ leads. There, the bulk material 10 is ground by means of grinding rollers 11, which roll on the grinding table 4. The grinding rollers 11 are not usually driven by itself. However, driving the grinding rollers 11 would be possible.
  • the crushed bulk material - to distinguish it from the unground bulk material 10 referred to as regrind 12 - is discharged in a known manner from the grinding chamber 1, for example by means of a blower, not shown.
  • the well-known mill works quite well, but is relatively expensive and expensive.
  • the deflection gear 9 is also relatively susceptible to interference and requires high maintenance.
  • the object of the present invention is to improve the known mill so that it is easier and less expensive to produce, is easier to maintain in continuous operation and has a lower susceptibility to interference.
  • the object is achieved in a mill of the type mentioned above in that the electric motor is located directly under the grinding table and the shaft axis is perpendicular.
  • the motor shaft directly - ie without intermediate gear - is connected to the grinding table. If a gearbox is available, the motor shaft is still connected to the grinding table only via a gearbox.
  • the transmission may include a transmission input shaft and a transmission output shaft, having parallel axes of rotation to one another ⁇ in the inventive embodiment.
  • the axes of rotation of the transmission input shaft and the transmission output shaft (and consequently also the shaft axis and the rotation axis) even aligned.
  • An example of a transmission having tationsachsen aligned Ro is a planetary gear that includes a sun gear, at least one planet gear and a ring gear ⁇ .
  • Transmission input shaft and the transmission output shaft together ⁇ act.
  • the transmission output shaft with the sun gear, the ring gear or the bearing of the planetary gear rotatably verbun ⁇ be the.
  • the planetary gear which may Gereteein- input shaft and the transmission output shaft is not the same element (sun gear, ring gear, storage of the planet gear) may be ver ⁇ prevented.
  • the motor shaft is connected to the sun gear.
  • the grinding table is rotatably connected in this case either with the ring gear or with the storage for the at least one planetary gear.
  • the electric motor is preferably designed as a slow-speed, high-pole drive. It can alternatively be designed as an asynchronous motor or as a synchronous motor. In the case of a synchronous motor, the drive may alternatively be electrically or permanently magnetically excited.
  • the electric motor can furthermore be designed alternatively as an internal rotor motor or as an external rotor motor.
  • the supply of the electric motor can be done directly from the supply network or - preferably - via a converter.
  • FIG 2 shows a grinding table with electric direct drive and FIG 3 and 4 grinding plate with drive via a transmission.
  • the present invention will be further described in connection with a permanent magnet synchronous motor, which is designed as an external rotor motor.
  • a permanent magnet synchronous motor which is designed as an external rotor motor.
  • an electrically excited synchronous motor or an asynchronous motor instead of the permanently excited synchronous motor and / or to design the motor as an internal rotor motor.
  • the electric motor 6 is arranged directly under the Mahltel ⁇ ler 4. It has a stator winding 13, which is fastened to a stator holder 14. The stator winding 13 cooperates with a rotor 15, which has permanent magnets 16 in the present case.
  • the rotor 15 is preferably bell-shaped. It can be gela ⁇ siege on the motor shaft 7 or complete it.
  • the shaft axis 8 of the motor shaft 7 extends perpendicular to FIG 2.
  • the motor shaft 7 is in the embodiment of FIG 2 directly - ie without interposing a gear - connected to the Mahltel ⁇ ler 4.
  • the shaft axis 8 of the motor shaft 7 is therefore in alignment with the axis of rotation 5 of the grinding table 4.
  • the grinding table 4 can be supported radially outside and / or between its radially outer end and the motor shaft 7.
  • the rotor 15 may even be identical to the grinding table 4.
  • the grinding table 4 is connected to the motor shaft 7 via a gear 17.
  • the transmission 17 has a transmission input shaft 18 and a transmission output shaft 19.
  • the transmission input shaft 18 and ⁇ the transmission output shaft 19 have rotational ⁇ axes 20 which are parallel to each other.
  • the rotation axes 20 can be offset from each other. Preferably, however, they are aligned with each other.
  • the gear 17 is designed as a planetary gear 17. It has a sun gear 21, at least one planet gear 22 and a ring gear 23. According to the Substituted ⁇ staltung of FIG 4, the motor shaft 7 is rotatably connected with the sun gear 21st
  • the grinding table 4 is rotatably connected according to FIG 4 with the ring gear 23.
  • the at least one planetary gear 22 is rotatably mounted on a bearing 24.
  • the bearing 24 is rotatable relative to the sun gear 21 and relative to the ring gear 23.
  • the grinding table 4 could be rotatably connected to the storage 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

The invention relates to a mill for milling rough, stone-like bulk material, comprising a milling plate (4) turnable around a vertical rotation axis (5). The milling plate (4) is driven by an electric motor (6), comprising a crankshaft (7) and a shaft axis (8). The electric motor (6) is arranged directly under the milling plate (4). The shaft axis (8) runs perpendicular.

Description

Mühle zum Mahlen von grobem, steinartigem Schüttgut mit achsparallelem AntriebMill for grinding coarse, stone-like bulk material with axis-parallel drive

Die vorliegende Erfindung betrifft eine Mühle zum Mahlen von grobem, steinartigem Schüttgut, beispielsweise Erz oder Kohle, mit einem um eine vertikale Drehachse drehbaren Mahltel¬ ler, wobei der Mahlteller mittels eines Elektromotors an¬ treibbar ist, der eine Motorwelle mit einer Wellenachse auf¬ weist .The present invention relates to a mill for grinding of coarse stone-like bulk material, for example ore or coal, having a rotatable about a vertical axis of rotation Mahltel ¬ ler, wherein the grinding table is at ¬ drivable by an electric motor which has a motor shaft with a shaft axis ¬ ,

Derartige Mühlen sind allgemein bekannt und werden beispiels¬ weise von der Firma Polysius AG, Deutschland, unter den Ty¬ penbezeichnungen Dorol und Quadropol vertrieben. Ein Schaubild einer derartigen Mühle ist beispielsweise unter der In¬ ternet-Adresse http : //www. polysius . com/imageneutraldetail- bild. asp?id=353 abrufbar.Such mills are well known and are ¬ example, by the company Polysius AG, Germany, under the Ty ¬ penbezeichnungen Dorol and quadrupole. A diagram of such a mill is, for example, under the In ¬ ternet address http: // www. polysius. com / imageneutraldetail- bild. asp? id = 353 available.

Die bekannte Mühle wird nachfolgend in Verbindung mit FIG 1 erläutert, soweit dies für das Verständnis der vorliegenden Erfindung erforderlich ist.The known mill is explained below in connection with FIG. 1, insofar as this is necessary for the understanding of the present invention.

Gemäß FIG 1 weist die Mühle einen Mahlraum 1 auf. Der Mahl¬ raum 1 weist einen Mahlraumboden 2 und eine um den Mahlraum 1 umlaufende Mahlraumwand 3 auf. Auf dem Mahlraumboden 2 ist ein Mahlteller 4 derart gelagert, dass er um eine vertikale Drehachse 5 drehbar ist.According to FIG. 1, the mill has a grinding chamber 1. The Mahl ¬ room 1 has a Mahlraumboden 2 and a circulating around the grinding chamber 1 Mahlraumwand 3. On the Mahlraumboden 2 a grinding table 4 is mounted such that it is rotatable about a vertical axis of rotation 5.

Der Mahlteller 4 ist mittels eines Elektromotors 6 antreib¬ bar. Der Elektromotor 6 weist eine Motorwelle 7 mit einer Wellenachse 8 auf.The grinding table 4 is drivable ¬ bar by means of an electric motor 6. The electric motor 6 has a motor shaft 7 with a shaft axis 8.

Im Stand der Technik ist der Elektromotor 6 seitlich unter dem Mahlteller 4 angeordnet. Die Wellenachse 8 verläuft hori¬ zontal. Die Motorwelle 7 wirkt über ein Umlenk- oder Winkel¬ getriebe 9 - z.B. ein Kegelradgetriebe - auf den Mahlteller 4. Das Umlenkgetriebe 9 bewirkt zusätzlich zur Umlenkung eine Umsetzung von einer relativ hohen Drehzahl des Elektromotors 6 auf eine deutlich niedrigere Drehzahl des Mahltellers 4.In the prior art, the electric motor 6 is arranged laterally below the grinding table 4. The shaft axis 8 extends hori zontal ¬. The motor shaft 7 acts via a deflection or angle ¬ gear 9 - eg a bevel gear - on the grinding table 4. The deflection gear 9 causes in addition to the deflection a Implementation of a relatively high speed of the electric motor 6 to a much lower speed of the grinding table. 4

Dem Mahlraum 1 wird auf bekannte Weise - beispielsweise mit- tels einer nicht dargestellten Schüttrutsche - grobes, stein¬ artiges Schüttgut 10 zugeführt, beispielsweise Kohle- oder Erzbrocken. Auf Grund der Zentrifugalkraft wird das Schüttgut 10 in Richtung auf die Mahlraumwand 3 nach radial außen ge¬ führt. Dort wird das Schüttgut 10 mittels Mahlwalzen 11 zer- mahlen, die auf dem Mahlteller 4 abrollen. Die Mahlwalzen 11 sind in der Regel nicht selbst angetrieben. Ein Antreiben der Mahlwalzen 11 wäre jedoch möglich. Das zermahlene Schüttgut - zur Unterscheidung vom ungemahlenen Schüttgut 10 als Mahlgut 12 bezeichnet - wird in bekannter Weise aus dem Mahlraum 1 abgeführt, beispielsweise mittels eines nicht dargestellten Gebläses .The grinding chamber 1 is in a known manner - for example by means of a Schuttrutsche not shown - coarse, rock ¬ like bulk material 10 is supplied, for example, coal or ore lumps. Due to the centrifugal force, the bulk material 10 is in the direction of the grinding chamber wall 3 radially outward ¬ leads. There, the bulk material 10 is ground by means of grinding rollers 11, which roll on the grinding table 4. The grinding rollers 11 are not usually driven by itself. However, driving the grinding rollers 11 would be possible. The crushed bulk material - to distinguish it from the unground bulk material 10 referred to as regrind 12 - is discharged in a known manner from the grinding chamber 1, for example by means of a blower, not shown.

Die bekannte Mühle arbeitet recht gut, ist jedoch relativ aufwändig konstruiert und kostenintensiv. Auch ist das Um- lenkgetriebe 9 relativ störanfällig und wartungsintensiv.The well-known mill works quite well, but is relatively expensive and expensive. The deflection gear 9 is also relatively susceptible to interference and requires high maintenance.

Die Aufgabe der vorliegenden Erfindung besteht darin, die bekannte Mühle derart zu verbessern, dass sie einfacher und kostengünstiger herstellbar ist, im Dauerbetrieb einfacher zu warten ist und eine geringere Störanfälligkeit aufweist.The object of the present invention is to improve the known mill so that it is easier and less expensive to produce, is easier to maintain in continuous operation and has a lower susceptibility to interference.

Die Aufgabe wird bei einer Mühle der eingangs genannten Art dadurch gelöst, dass der Elektromotor direkt unter dem Mahlteller angeordnet ist und die Wellenachse lotrecht verläuft.The object is achieved in a mill of the type mentioned above in that the electric motor is located directly under the grinding table and the shaft axis is perpendicular.

Durch die erfindungsgemäße Ausgestaltung ist es möglich, dass die Motorwelle direkt - d.h. ohne zwischengeordnetes Getriebe - mit dem Mahlteller verbunden ist. Falls ein Getriebe vorhanden ist, ist die Motorwelle mit dem Mahlteller zwar wei- terhin nur über ein Getriebe verbunden. Das Getriebe kann bei der erfindungsgemäßen Ausgestaltung jedoch eine Getriebeeingangswelle und eine Getriebeausgangswelle aufweisen, die zu¬ einander parallele Rotationsachsen aufweisen. In einer bevor- zugten Ausgestaltung fluchten die Rotationsachsen der Getriebeeingangswelle und der Getriebeausgangswelle (und folglich auch die Wellenachse und die Drehachse) sogar miteinander. Ein Beispiel eines Getriebes, das miteinander fluchtende Ro- tationsachsen aufweist, ist ein Planetengetriebe, das ein Sonnenrad, mindestens ein Planetenrad und ein Hohlrad auf¬ weist .The inventive design, it is possible that the motor shaft directly - ie without intermediate gear - is connected to the grinding table. If a gearbox is available, the motor shaft is still connected to the grinding table only via a gearbox. However, the transmission may include a transmission input shaft and a transmission output shaft, having parallel axes of rotation to one another ¬ in the inventive embodiment. In a zugten embodiment, the axes of rotation of the transmission input shaft and the transmission output shaft (and consequently also the shaft axis and the rotation axis) even aligned. An example of a transmission having tationsachsen aligned Ro, is a planetary gear that includes a sun gear, at least one planet gear and a ring gear ¬.

Im Falle eines Planetengetriebes sind verschiedene Kombinati- onen möglich, mit welchen Rädern des Planetengetriebes dieIn the case of a planetary gear various combinations are possible on which wheels of the planetary gear

Getriebeeingangswelle und die Getriebeausgangswelle zusammen¬ wirken. Je nach Ausgestaltung des Planetengetriebes kann die Getriebeeingangswelle mit dem Sonnenrad, dem Hohlrad oder ei¬ ner Lagerung, auf der das mindestens eine Planetenrad um das Sonnenrad drehbar gelagert ist, drehfest verbunden sein. E- benso kann die Getriebeausgangswelle mit dem Sonnenrad, dem Hohlrad oder der Lagerung des Planetenrades drehfest verbun¬ den sein. Selbstverständlich dürfen in einer bestimmten, konkreten Ausgestaltung des Planetengetriebes die Getriebeein- gangswelle und die Getriebeausgangswelle nicht mit demselben Element (Sonnenrad, Hohlrad, Lagerung des Planetenrades) ver¬ bunden sein.Transmission input shaft and the transmission output shaft together ¬ act. Depending on the configuration of the planetary gear, the transmission input shaft with the sun gear, the ring gear or egg ¬ ner storage on which the at least one planet gear is rotatably mounted about the sun gear, rotatably connected. E- benso the transmission output shaft with the sun gear, the ring gear or the bearing of the planetary gear rotatably verbun ¬ be the. Of course, in a particular concrete embodiment of the planetary gear which may Getriebeein- input shaft and the transmission output shaft is not the same element (sun gear, ring gear, storage of the planet gear) may be ver ¬ prevented.

Derzeit ist bevorzugt, dass die Motorwelle mit dem Sonnenrad verbunden ist. Der Mahlteller ist in diesem Fall entweder mit dem Hohlrad oder mit der Lagerung für das mindestens eine Planetenrad drehfest verbunden.At present it is preferred that the motor shaft is connected to the sun gear. The grinding table is rotatably connected in this case either with the ring gear or with the storage for the at least one planetary gear.

Der Elektromotor ist vorzugsweise als langsam laufender, hochpoliger Antrieb ausgebildet. Er kann alternativ als Asynchronmotor oder als Synchronmotor ausgebildet sein. Im Falle eines Synchronmotors kann der Antrieb alternativ elektrisch oder permanent magnetisch erregt sein. Der Elektromotor kann weiterhin alternativ als Innenläufermotor oder als Außenläu- fermotor ausgebildet sein. Die Speisung des Elektromotors kann direkt aus dem Versorgungsnetz oder - bevorzugt - über einen Umrichter erfolgen. Weitere Vorteile und Einzelheiten ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen in Verbindung mit den Zeichnungen. Es zeigen in Prinzipdarstellung:The electric motor is preferably designed as a slow-speed, high-pole drive. It can alternatively be designed as an asynchronous motor or as a synchronous motor. In the case of a synchronous motor, the drive may alternatively be electrically or permanently magnetically excited. The electric motor can furthermore be designed alternatively as an internal rotor motor or as an external rotor motor. The supply of the electric motor can be done directly from the supply network or - preferably - via a converter. Further advantages and details will become apparent from the following description of exemplary embodiments in conjunction with the drawings. In a schematic representation:

FIG 1 eine Mühle des Standes der Technik,1 shows a mill of the prior art,

FIG 2 einen Mahlteller mit elektrischem Direktantrieb und FIG 3 und 4 Mahlteller mit Antrieb über ein Getriebe.2 shows a grinding table with electric direct drive and FIG 3 and 4 grinding plate with drive via a transmission.

Die nachfolgende Beschreibung der vorliegenden Erfindung und von deren Ausgestaltungen geht aus von der obenstehend in Verbindung mit FIG 1 beschriebenen Mühle. Nachfolgend wird daher nur auf die Unterschiede der erfindungsgemäßen Ausgestaltungen näher eingegangen. Die übrigen Ausführungen zu FIG 1 bleiben weiterhin gültig.The following description of the present invention and its embodiments is based on the mill described above in connection with FIG. Below, therefore, only the differences of the embodiments of the invention will be discussed in more detail. The remaining comments on FIG. 1 remain valid.

Die vorliegende Erfindung wird weiterhin in Verbindung mit einem permanent erregten Synchronmotor beschrieben, der als Außenläufermotor ausgebildet ist. Es wäre jedoch ohne weite- res möglich, anstelle des permanent erregten Synchronmotors einen elektrisch erregten Synchronmotor oder einen Asynchronmotor zu verwenden und/oder den Motor als Innenläufermotor auszubilden .The present invention will be further described in connection with a permanent magnet synchronous motor, which is designed as an external rotor motor. However, it would be readily possible to use an electrically excited synchronous motor or an asynchronous motor instead of the permanently excited synchronous motor and / or to design the motor as an internal rotor motor.

Gemäß FIG 2 ist der Elektromotor 6 direkt unter dem Mahltel¬ ler 4 angeordnet. Er weist eine Statorwicklung 13 auf, die an einer Statorhalterung 14 befestigt ist. Die Statorwicklung 13 wirkt mit einem Rotor 15 zusammen, der im vorliegenden Fall Permanentmagnete 16 aufweist. Der Rotor 15 ist vorzugsweise glockenförmig ausgebildet. Er kann auf der Motorwelle 7 gela¬ gert sein oder sie abschließen. Die Wellenachse 8 der Motorwelle 7 verläuft gemäß FIG 2 lotrecht.According to FIG 2, the electric motor 6 is arranged directly under the Mahltel ¬ ler 4. It has a stator winding 13, which is fastened to a stator holder 14. The stator winding 13 cooperates with a rotor 15, which has permanent magnets 16 in the present case. The rotor 15 is preferably bell-shaped. It can be gela ¬ siege on the motor shaft 7 or complete it. The shaft axis 8 of the motor shaft 7 extends perpendicular to FIG 2.

Die Motorwelle 7 ist bei der Ausgestaltung von FIG 2 direkt - also ohne Zwischenschalten eines Getriebes - mit dem Mahltel¬ ler 4 verbunden. Die Wellenachse 8 der Motorwelle 7 fluchtet daher mit der Drehachse 5 des Mahltellers 4. Soweit erforderlich, kann der Mahlteller 4 radial außen und/oder zwischen seinem radial äußerem Ende und der Motorwelle 7 abgestützt sein. Im Falle einer glockenförmigen Ausgestaltung des Rotors 15 kann der Rotor 15 sogar mit dem Mahlteller 4 identisch sein.The motor shaft 7 is in the embodiment of FIG 2 directly - ie without interposing a gear - connected to the Mahltel ¬ ler 4. The shaft axis 8 of the motor shaft 7 is therefore in alignment with the axis of rotation 5 of the grinding table 4. If necessary, the grinding table 4 can be supported radially outside and / or between its radially outer end and the motor shaft 7. In the case of a bell-shaped embodiment of the rotor 15, the rotor 15 may even be identical to the grinding table 4.

Die Darstellung von FIG 3 entspricht schematisch im Wesentlichen der Darstellung von FIG 2. Im Unterschied zur Ausgestaltung von FIG 2 ist bei der Ausgestaltung von FIG 3 jedoch der Mahlteller 4 mit der Motorwelle 7 über ein Getriebe 17 verbunden. Das Getriebe 17 weist eine Getriebeeingangswelle 18 und eine Getriebeausgangswelle 19 auf. Die Getriebeeingangs¬ welle 18 und die Getriebeausgangswelle 19 weisen Rotations¬ achsen 20 auf, die parallel zueinander verlaufen. Die Rotati- onsachsen 20 können gegeneinander versetzt sein. Vorzugsweise fluchten sie jedoch miteinander.In contrast to the embodiment of FIG. 2, in the embodiment of FIG. 3, the grinding table 4 is connected to the motor shaft 7 via a gear 17. The transmission 17 has a transmission input shaft 18 and a transmission output shaft 19. The transmission input shaft 18 and ¬ the transmission output shaft 19 have rotational ¬ axes 20 which are parallel to each other. The rotation axes 20 can be offset from each other. Preferably, however, they are aligned with each other.

Gemäß FIG 4, die einen mögliche Spezialgestaltung der Ausgestaltung von FIG 3 zeigt, ist das Getriebe 17 als Planetenge- triebe 17 ausgebildet. Es weist ein Sonnenrad 21, mindestens ein Planetenrad 22 und ein Hohlrad 23 auf. Gemäß der Ausge¬ staltung von FIG 4 ist die Motorwelle 7 mit dem Sonnenrad 21 drehfest verbunden.According to FIG. 4, which shows a possible special design of the embodiment of FIG. 3, the gear 17 is designed as a planetary gear 17. It has a sun gear 21, at least one planet gear 22 and a ring gear 23. According to the Substituted ¬ staltung of FIG 4, the motor shaft 7 is rotatably connected with the sun gear 21st

Der Mahlteller 4 ist gemäß FIG 4 mit dem Hohlrad 23 drehfest verbunden. Das mindestens eine Planetenrad 22 ist auf einer Lagerung 24 drehbar gelagert. Die Lagerung 24 ist relativ zum Sonnenrad 21 und relativ zum Hohlrad 23 drehbar.The grinding table 4 is rotatably connected according to FIG 4 with the ring gear 23. The at least one planetary gear 22 is rotatably mounted on a bearing 24. The bearing 24 is rotatable relative to the sun gear 21 and relative to the ring gear 23.

Alternativ zu der Ausgestaltung von FIG 4 könnte der Mahlteller 4 auch mit der Lagerung 24 drehfest verbunden sein.Alternatively to the embodiment of FIG 4, the grinding table 4 could be rotatably connected to the storage 24.

Mittels der vorliegenden Erfindung ist es möglich, den relativ schnell laufenden Elektromotor 6 des Standes der Technik durch einen erheblich langsamer laufenden Elektromotor 6 zu ersetzen. Das wartungsintensive und störanfällige Umlenkge¬ triebe 9 kann entweder entfallen oder durch ein erheblich zuverlässigeres Getriebe 17 ersetzt werden, das parallel ver- laufende Wellen 18, 19 aufweist. Getriebeverluste entfallen oder können reduziert werden. Der Wirkungsgrad und die Ver¬ fügbarkeit der erfindungsgemäßen Mühle sind größer als im Stand der Technik. Auch sind höhere Einheitenleistungen rea- lisierbar.By means of the present invention, it is possible to replace the relatively fast-running electric motor 6 of the prior art by a considerably slower running electric motor 6. The maintenance-intensive and interference-prone Umlenkge ¬ gear 9 can either be omitted or replaced by a much more reliable transmission 17, the parallel running waves 18, 19 has. Gear losses are eliminated or can be reduced. The efficiency and Ver ¬ availability of the mill according to the invention are greater than in the prior art. Also, higher unit outputs can be realized.

Die obige Beschreibung dient ausschließlich der Erläuterung der vorliegenden Erfindung. Der Schutzumfang der vorliegenden Erfindung soll hingegen ausschließlich durch die beigefügten Ansprüche bestimmt sein. The above description is only for explanation of the present invention. The scope of the present invention, however, is intended to be determined solely by the appended claims.

Claims

Patentansprüche claims 1. Mühle zum Mahlen von grobem, steinartigem Schüttgut (10), beispielsweise Erz oder Kohle, mit einem um eine vertikale Drehachse (5) drehbaren Mahlteller (4), wobei der Mahlteller (4) mittels eines Elektromotors (6) antreibbar ist, der eine Motorwelle (7) mit einer Wellenachse (8) aufweist, d a ¬ d u r c h g e k e n n z e i c h n e t , dass der Elektro¬ motor (6) direkt unter dem Mahlteller (4) angeordnet ist und dass die Wellenachse (8) lotrecht verläuft.1. mill for grinding coarse, stone-like bulk material (10), for example ore or coal, with a about a vertical axis of rotation (5) rotatable grinding table (4), wherein the grinding table (4) by means of an electric motor (6) is driven, the a motor shaft (7) with a shaft axis (8), since ¬ characterized in that the electric motor ¬ (6) is arranged directly below the grinding table (4) and that the shaft axis (8) is perpendicular. 2. Mühle nach Anspruch 1, d a d u r c h g e k e n n ¬ z e i c h n e t , dass die Motorwelle (7) direkt mit dem Mahlteller (4) verbunden ist.2. Mill according to claim 1, dadurchgekenn ¬ records that the motor shaft (7) is connected directly to the grinding table (4). 3. Mühle nach Anspruch 1, d a d u r c h g e k e n n ¬ z e i c h n e t , dass die Motorwelle (7) mit dem Mahltel¬ ler (4) über ein Getriebe (17) verbunden ist, das eine Ge¬ triebeeingangswelle (18) und eine Getriebeausgangswelle (19) aufweist, und dass die Getriebeeingangswelle (18) und die Ge¬ triebeausgangswelle (19) zueinander parallele Rotationsachsen3. Mill according to claim 1, dadurchgekenn ¬ characterized in that the motor shaft (7) with the Mahltel ¬ ler (4) via a transmission (17) is connected, which has a Ge ¬ transmission input shaft (18) and a transmission output shaft (19), and that the transmission input shaft (18) and the Ge ¬ drive output shaft (19) mutually parallel axes of rotation (20) aufweisen.(20). 4. Mühle nach Anspruch 3, d a d u r c h g e k e n n - z e i c h n e t , dass die Rotationsachsen (20) der Getrie¬ beeingangswelle (18) und der Getriebeausgangswelle (19) mit¬ einander fluchten.4. Mill according to claim 3, dadurchgekenn - characterized in that the axes of rotation (20) of the gear ¬ beeingangswelle (18) and the transmission output shaft (19) are aligned with ¬ each other. 5. Mühle nach Anspruch 4, d a d u r c h g e k e n n - z e i c h n e t , dass das Getriebe (17) als Planetenge¬ triebe (17) ausgebildet ist, das ein Sonnenrad (21), mindes¬ tens ein Planetenrad (22) und ein Hohlrad (23) aufweist.5. A mill according to claim 4, dadurchgekenn - characterized in that the gear (17) is constructed as a planetary gear ¬ gear (17) having a sun gear (21), Minim ¬ least one planet gear (22) and a ring gear (23). 6. Mühle nach Anspruch 5, d a d u r c h g e k e n n - z e i c h n e t , dass die Motorwelle (7) mit dem Sonnenrad6. Mill according to claim 5, characterized in that the motor shaft (7) with the sun gear (21) und der Mahlteller (4) entweder mit dem Hohlrad (23) o- der mit einer Lagerung (24), auf der das mindestens eine Pla¬ netenrad (22) drehbar gelagert ist, drehfest verbunden ist. (21) and the grinding table (4) either with the ring gear (23) or with a bearing (24) on which the at least one Pla ¬ netenrad (22) is rotatably mounted rotatably connected.
EP07802753A 2006-09-14 2007-08-21 Mill for milling rough, stone-like bulk material with parallel to the axis drive Not-in-force EP2063991B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006043179A DE102006043179A1 (en) 2006-09-14 2006-09-14 Mill for grinding coarse, stone-like bulk material with axis-parallel drive
PCT/EP2007/058667 WO2008031694A1 (en) 2006-09-14 2007-08-21 Mill for milling rough, stone-like bulk material with parallel to the axis drive

Publications (2)

Publication Number Publication Date
EP2063991A1 true EP2063991A1 (en) 2009-06-03
EP2063991B1 EP2063991B1 (en) 2010-03-31

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EP07802753A Not-in-force EP2063991B1 (en) 2006-09-14 2007-08-21 Mill for milling rough, stone-like bulk material with parallel to the axis drive

Country Status (9)

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US (1) US20100230520A1 (en)
EP (1) EP2063991B1 (en)
CN (1) CN101516514A (en)
AT (1) ATE462496T1 (en)
AU (1) AU2007296832A1 (en)
CA (1) CA2663353A1 (en)
DE (2) DE102006043179A1 (en)
RU (1) RU2009113817A (en)
WO (1) WO2008031694A1 (en)

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Also Published As

Publication number Publication date
AU2007296832A1 (en) 2008-03-20
DE502007003347D1 (en) 2010-05-12
DE102006043179A1 (en) 2008-03-27
US20100230520A1 (en) 2010-09-16
CA2663353A1 (en) 2008-03-20
WO2008031694A1 (en) 2008-03-20
EP2063991B1 (en) 2010-03-31
RU2009113817A (en) 2010-10-20
CN101516514A (en) 2009-08-26
ATE462496T1 (en) 2010-04-15

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