EP2271429A1 - Roller mill - Google Patents

Roller mill

Info

Publication number
EP2271429A1
EP2271429A1 EP09782117A EP09782117A EP2271429A1 EP 2271429 A1 EP2271429 A1 EP 2271429A1 EP 09782117 A EP09782117 A EP 09782117A EP 09782117 A EP09782117 A EP 09782117A EP 2271429 A1 EP2271429 A1 EP 2271429A1
Authority
EP
European Patent Office
Prior art keywords
roller
grinding
drive train
drive
axis
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
EP09782117A
Other languages
German (de)
French (fr)
Other versions
EP2271429B1 (en
Inventor
Guido Scholz
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Polysius AG
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
Application filed by Polysius AG filed Critical Polysius AG
Publication of EP2271429A1 publication Critical patent/EP2271429A1/en
Application granted granted Critical
Publication of EP2271429B1 publication Critical patent/EP2271429B1/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
    • B02C15/04—Mills with pressed pendularly-mounted rollers, e.g. spring pressed

Definitions

  • the invention relates to a roller mill with a rotatable mounted about a mill axis mounted grinding table, at least one grinding roller which is rotatable about a Mahlrollenachse and with the grinding table in Abrolleingriff and at least one
  • roller or roller mills also referred to as spring force or external power mills
  • spring force or external power mills can be used, for example, for comminuting cement raw materials, cement clinker, coal, ore materials and the like.
  • the ground material fed in generally centrally to the grinding plate or grinding ring is comminuted on the grinding track between the grinding ring and the grinding rollers, whereby pressing elements ensure that a correspondingly large, generally adjustable grinding force is introduced in this area.
  • DE 10 2006 061 328 A1 also shows a roller mill in which the grinding table is driven and the grinding rollers are mounted on a respective rocker arm, which has a tilting axis which is aligned parallel to the grinding roller axis. From DE 295 563 a muller gear with driven plate and driven rotor is also known.
  • the invention is therefore based on the object, this type of roller mill
  • the roller mill according to the invention consists of a rotatably mounted about a mill axis grinding table, at least one grinding roller which is rotatable about a Mahlrollenachse and is in Abrolleingriff with the grinding table, and at least one rocker arm for holding the grinding roller having a tilting axis, wherein the
  • Tilting axis is aligned parallel or restricted to Mahlrollenachse.
  • a fixed motor is connected via a drive train for transmitting the drive power to the grinding roller, wherein the drive train comprises a fixed drive train and a co-moving with the rocker arm drive train.
  • the fixed drive train has a drive element which is in contact with the co-moving drive train and is arranged coaxially to the tilting axis of the rocker arm.
  • the roller mill consists of at least one grinding table rotatably mounted about a mill axis, at least one grinding roller which is rotatable about a grinding roller axis and with which
  • Grinding plate is in Abrolleingriff, and at least one rocker arm for
  • a fixed motor is connected via a drive train for transmitting the drive power to the grinding roller, wherein the drive train has a fixed drive train and a with the rocker arm co-moving drive train comprises and the two drive trains are connected to each other via two bevel gears, wherein the bevel gears are arranged such that intersect the axes of the bevel gears on the tilting axis.
  • the power for driving the roller mill can be distributed to a plurality of grinding rollers and / or on the grinding roller and grinding table. In this way, smaller and therefore less expensive drives can be used.
  • the distance between the Mahlrollenachse and the axis of the drive element does not change during the tilting movement of the rocker arm.
  • a secure transmission of the drive power is guaranteed.
  • the two drive trains can be connected to each other via two bevel gears, which are then arranged in such a way that the axes of the bevel gears intersect on the tilting axis to ensure safe transmission of the drive power.
  • the co-moving drive train on a connected to the grinding roller sprocket, which is preferably directly or via at least one intermediate gear with the drive element in communication.
  • the drive element is a drive wheel of a provided between the stationary and the co-moving drive train traction mechanism. Furthermore, it is advantageous if at least the
  • Drive element and / or elements of the co-moving drive train tilting are designed to compensate for any relative movements due to bending forces.
  • the tilting axis of the rocking lever is arranged in the direction of rotation of the grinding table behind the Mahlrollenachse.
  • the roller mill comprises at least one pressing system in operative contact with the rocking lever for adjusting the contact pressure of the grinding roller.
  • 1a is a schematic plan view of a roller mill according to a first embodiment
  • FIG. 2a is a side view of a roller mill according to a second embodiment
  • FIG. 2b is a sectional view taken along the line A-A of Fig. 2a,
  • FIG. 3 is a schematic representation of a roller mill according to a third embodiment
  • Fig. 4 is a schematic representation of a roller mill according to a fourth exemplary embodiment
  • FIG. 5 is a schematic representation of a roller mill according to a fifth embodiment
  • the roller mill shown in Fig. Ia and Ib consists essentially of a rotatably mounted about a mill axis grinding plate 1, at least one grinding roller 2 which is rotatable about a Mahlrollenachse 3 and is in Abrolleingriff with the grinding table, and at least one rocker arm 4 for holding the Mahlrolle 2.
  • Rocking lever has a tilting axis 5, wherein the tilting axis is aligned parallel to Mahlrollenachse 3.
  • At least one pressing system 6 in operative contact with the oscillating lever 4 is provided for adjusting the contact pressure of the grinding roller.
  • This pressing system can be formed for example by a hydro-pneumatic spring system.
  • Mill housing stored.
  • a stationarily arranged motor 8 is provided, which via a stationary drive train and a co-moving with the rocker arm 4 drive train with the grinding roller 2 in
  • the fixed drive train here has a drive element 9 that is in contact with the co-moving drive train and coaxial with
  • Tilting axis 5 of the rocker arm 4 is arranged.
  • This drive element 9 is driven by gears 8, 11 from the motor 8.
  • the co-moving drive train has a connected to the grinding roller 2 ring gear 12, which is directly or, as shown, via an intermediate 13 with the drive element 9 in operative connection.
  • the drive element 9 and / or the intermediate gear 13 and the ring gear 12th can be held tiltable to compensate for any bending stresses of the rocker arm or Mahlrollenachse can.
  • the distance between the Mahlrollenachse 3 and the axis of the drive element 9 does not change even with a movement of the rocker arm 4, so that a secure transmission of the drive power is guaranteed.
  • the tilting axis of the rocking lever 4 is arranged in the direction of rotation 14 of the material behind the Mahlrollenachse 3.
  • Roller mill are preferably provided a plurality of grinding rollers, in particular two, four or six grinding rollers, each of which may have its own drive. In addition, it may be appropriate to equip the grinding plate with its own drive.
  • the drive wheel in turn would be arranged coaxially to the tilting axis 5.
  • a bevel gear could be provided.
  • the drive element 9 would then be formed as a bevel gear, which in turn is arranged coaxially to the tilting axis 5.
  • the drive element 9 is formed by a pinion arranged coaxially with the tilting axis 5, which meshes with the ring gear 12.
  • the motor 8 drives via a gear 15, for example, a gear transmission stage, the pinion 9 at.
  • the motor 8 is designed so that the stationary drive train is deflected by 180 °.
  • the rocker arm 4 has two pivot arms 4a, which hold the Mahlrollenachse 3 and are mounted pivotably about the tilting axis 5.
  • the pressure system 6 acts in this case on train and can be designed as a hydro-pneumatic spring system. By this arrangement results in a very compact drive system for the grinding roller. 2
  • Mahlrollenachse 3 and tilt axis 5 are preferred, in principle, a restricted arrangement of Mahlrollenachse 3 and tilt axis 5 is conceivable.
  • a restricted arrangement are meant all orientations of the grinding roller axis 3 to the tilting axis 5, which are not parallel and not perpendicular to each other.
  • the bevel gear 16 of the stationary drive train is still coaxially aligned with the tilting axis 5.
  • the grinding roller axis 3 has been arranged in a restricted manner, while in the exemplary embodiment according to FIG. 5 the tilting axis 5 has been rotated with respect to the grinding roller axis.
  • the axis of the bevel gear 16 is aligned parallel to the grinding roller axis 3.
  • Mahlrollenachse 2 and tilt axis 5 secure transmission of the drive power. Also in this variant, the bevel gears can be supported tiltable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Massaging Devices (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

A roller mill includes a grinding table arranged for rotation about a mill axis, at least one grinding roller rotated about a grinding roller axis and in rolling engagement with the grinding table, and at least one pivot lever retaining the grinding roller and having a pivot axis orientated parallel with or inclined relative to the grinding roller axis. A fixed motor is connected to the grinding roller via a drive train to transmit drive power, the drive train including a fixed drive train and a movable drive train. The fixed drive train has a drive element in contact with the movable drive train and arranged coaxially relative to the pivot axis of the pivot lever. The two drive trains may be connected to each other via two bevel wheels arranged so that the axes of the bevel wheels intersect in the pivot axis.

Description

Rollenmühle roller mill
Die Erfindung betrifft eine Rollenmühle mit einem um eine Mühlenachse drehbare gelagerten Mahlteller, wenigstens einer Mahlrolle, die um eine Mahlrollenachse drehbar und mit dem Mahlteller in Abrolleingriff steht sowie wenigstens einemThe invention relates to a roller mill with a rotatable mounted about a mill axis mounted grinding table, at least one grinding roller which is rotatable about a Mahlrollenachse and with the grinding table in Abrolleingriff and at least one
Schwinghebel zur Halterung der Mahlrolle.Rocker arm for holding the grinding roller.
Derartige Mühlen sind aus der Praxis und der Fachliteratur in verschiedenen Ausführungsformen hinreichend bekannt. Diese auch als Federkraft- oder Fremdkraftmühlen bezeichneten Rollen- bzw. Wälzmühlen können beispielsweise zum Zerkleinern von Zementrohmaterialien, Zementklinker, Kohle, Erzmaterialien und dergleichen eingesetzt werden. Dabei sind innerhalb eines Mühlengehäuses ein um die Mühlenachse drehbar gelagerter Mahlring bzw. Mahlteller mit darauf ausgebildeter Mahlbahn sowie mehreren über den Umfang der Mahlbahn verteilt angeordneten und auf dieser Mahlbahn abrollenden Mahlrollen bzw. Mahlwalzen vorgesehen. Bei der Zerkleinerungsarbeit wird das im Allgemeinen zentral zum Mahlteller bzw. Mahlring zugeführte Mahlgut auf der Mahlbahn zwischen Mahlring und Mahlrollen zerkleinert, wobei Anpressorgane dafür sorgen, dass in diesem Bereich eine entsprechend große, allgemein einstellbare Mahlkraft eingebracht wird.Such mills are well known in practice and the literature in various embodiments. These roller or roller mills, also referred to as spring force or external power mills, can be used, for example, for comminuting cement raw materials, cement clinker, coal, ore materials and the like. In this case, provided within a mill housing a rotatably mounted around the mill axis Mahlring or Mahlteller with trained thereon grinding path and a plurality of distributed over the circumference of the grinding path and rolling on this grinding path grinding rollers or grinding rollers. During comminution work, the ground material fed in generally centrally to the grinding plate or grinding ring is comminuted on the grinding track between the grinding ring and the grinding rollers, whereby pressing elements ensure that a correspondingly large, generally adjustable grinding force is introduced in this area.
Aus der DE 509 212 ist eine Wälzmühle mit einem Schwinghebel zur drehbaren Halterung der Mahlrollen bekannt, wobei der Schwinghebel eine Kippachse aufweist, die parallel zur Mahlrollenachse angeordnet ist. Der Antrieb erfolgt über den Mahlteller. Diese Mühlen haben jedoch den Nachteil, dass sich die für große Mühlen mit hohen Durchsätzen erforderlichen hohen Antriebsleitungen nur mit sehr hohem Kostenaufwand realisieren lassen.From DE 509 212 a roller mill with a rocker arm for rotatably supporting the grinding rollers is known, wherein the rocker arm has a tilting axis which is arranged parallel to the grinding roller axis. The drive is via the grinding table. However, these mills have the disadvantage that the high drive lines required for large mills with high throughputs can only be realized at very high cost.
Die DE 10 2006 061 328 Al zeigt ebenfalls eine Wälzmühle, bei welcher der Mahlteller angetrieben ist und die Mahlrollen an jeweils einem Schwinghebel gehaltert sind, der eine Kippachse aufweist, die parallel zur Mahlrollenachse ausgerichtet ist. Aus der DE 295 563 ist ferner ein Kollergang mit angetriebenem Teller und angetriebenem Läufer bekannt.DE 10 2006 061 328 A1 also shows a roller mill in which the grinding table is driven and the grinding rollers are mounted on a respective rocker arm, which has a tilting axis which is aligned parallel to the grinding roller axis. From DE 295 563 a muller gear with driven plate and driven rotor is also known.
Der Erfindung liegt daher die Aufgabe zugrunde, diese Art von RollenmühleThe invention is therefore based on the object, this type of roller mill
(Schwinghebelmühle) weiter zu entwickeln, sodass auch hohe Kräfte und hohe Durchsatzleistungen kostengünstiger realisiert werden können.(Rocker arm mill) to develop further, so that high forces and high throughput can be realized more cost-effective.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale der Ansprüche 1 und 12 gelöst.According to the invention, this object is solved by the features of claims 1 and 12.
Die erfindungsgemäße Rollenmühle besteht aus einem um eine Mühlenachse drehbar gelagerten Mahlteller, wenigstens einer Mahlrolle, die um eine Mahlrollenachse drehbar ist und mit dem Mahlteller in Abrolleingriff steht, sowie wenigstens einem Schwinghebel zur Halterung der Mahlrolle, der eine Kippachse aufweist, wobei dieThe roller mill according to the invention consists of a rotatably mounted about a mill axis grinding table, at least one grinding roller which is rotatable about a Mahlrollenachse and is in Abrolleingriff with the grinding table, and at least one rocker arm for holding the grinding roller having a tilting axis, wherein the
Kippachse parallel oder geschränkt zur Mahlrollenachse ausgerichtet ist. Ferner ist ein ortsfester Motor über einen Antriebsstrang zum Übertragen der Antriebsleistung mit der Mahlrolle verbunden, wobei der Antriebsstrang einen ortsfesten Antriebsstrang und einen mit dem Schwinghebel mitbewegten Antriebsstrang umfasst. Der ortsfeste Antriebsstrang weist ein Antriebeselement auf, das mit dem mitbewegten Antriebsstrang in Kontakt steht und koaxial zur Kippachse des Schwinghebels angeordnet ist.Tilting axis is aligned parallel or restricted to Mahlrollenachse. Further, a fixed motor is connected via a drive train for transmitting the drive power to the grinding roller, wherein the drive train comprises a fixed drive train and a co-moving with the rocker arm drive train. The fixed drive train has a drive element which is in contact with the co-moving drive train and is arranged coaxially to the tilting axis of the rocker arm.
Gemäß einer weiteren Realisierung der Erfindung besteht die Rollenmühle im wenigstens aus einem um eine Mühlenachse drehbar gelagerten Mahlteller, wenigstens einer Mahlrolle, die um eine Mahlrollenachse drehbar ist und mit demAccording to a further realization of the invention, the roller mill consists of at least one grinding table rotatably mounted about a mill axis, at least one grinding roller which is rotatable about a grinding roller axis and with which
Mahlteller in Abrolleingriff steht, sowie wenigstens einem Schwinghebel zurGrinding plate is in Abrolleingriff, and at least one rocker arm for
Halterung der Mahlrolle, der eine Kippachse aufweist, wobei die Kippachse parallel oder geschränkt zur Mahlrollenachse ausgerichtet ist. Ferner ist ein ortsfester Motor über einen Antriebsstrang zum Übertragen der Antriebsleistung mit der Mahlrolle verbunden, wobei der Antriebsstrang einen ortsfesten Antriebsstrang und einen mit dem Schwinghebel mitbewegten Antriebsstrang umfasst und die beiden Antriebsstränge über zwei Kegelräder miteinander verbunden sind, wobei die Kegelräder derart angeordnet sind, dass sich die Achsen der Kegelräder auf der Kippachse schneiden.Holder of the grinding roller, which has a tilting axis, wherein the tilting axis is aligned parallel or set to the Mahlrollenachse. Further, a fixed motor is connected via a drive train for transmitting the drive power to the grinding roller, wherein the drive train has a fixed drive train and a with the rocker arm co-moving drive train comprises and the two drive trains are connected to each other via two bevel gears, wherein the bevel gears are arranged such that intersect the axes of the bevel gears on the tilting axis.
Indem zumindest auch die Mahlrollen angetrieben werden, kann die Leistung zum Antreiben der Rollenmühle auf mehrere Mahlrollen und/oder auf Mahlrolle und Mahlteller verteilt werden. Auf diese Weise können kleinere und damit kostengünstigere Antriebe zum Einsatz kommen.By at least the grinding rollers are driven, the power for driving the roller mill can be distributed to a plurality of grinding rollers and / or on the grinding roller and grinding table. In this way, smaller and therefore less expensive drives can be used.
Durch das zur Kippachse koaxial angeordnete Antriebselement verändert sich der Abstand zwischen der Mahlrollenachse und der Achse des Antriebselementes während der Kippbewegung des Schwinghebels nicht. Somit ist eine sichere Übertragung der Antriebsleistung gewährleistet.Due to the tilting axis coaxially arranged drive element, the distance between the Mahlrollenachse and the axis of the drive element does not change during the tilting movement of the rocker arm. Thus, a secure transmission of the drive power is guaranteed.
Ist die Kippachse parallel oder geschränkt zur Mahlrollenachse ausgerichtet, können die beiden Antriebstränge über zwei Kegelräder miteinander verbunden, die dann so anzuordnen sind, dass sich die Achsen der Kegelräder auf der Kippachse schneiden, um eine sichere Übertragung der Antriebsleistung zu gewährleisten.If the tilting axis is aligned parallel or set to the grinding roller axis, the two drive trains can be connected to each other via two bevel gears, which are then arranged in such a way that the axes of the bevel gears intersect on the tilting axis to ensure safe transmission of the drive power.
Weitere Vorteile und Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche .Further advantages and embodiments of the invention are the subject of the dependent claims.
Gemäß einem bevorzugten Ausführungsbeispiel weist der mitbewegte Antriebsstrang einen mit der Mahlrolle verbundenen Zahnkranz auf, der vorzugsweise direkt oder über wenigstens ein Zwischenrad mit dem Antriebselement in Verbindung steht. DasAccording to a preferred embodiment, the co-moving drive train on a connected to the grinding roller sprocket, which is preferably directly or via at least one intermediate gear with the drive element in communication. The
Zwischenrad wird dabei zweckmäßigerweise am Schwinghebel gehaltert. Es kann aber vorgesehen werden, dass das Antriebselement ein Antriebsrad eines zwischen dem ortsfesten und dem mitbewegten Antriebsstrang vorgesehenen Zugmittelgetriebes ist. Weiterhin ist es von Vorteil, wenn zumindest dasIntermediate wheel is suitably held on the rocker arm. However, it can be provided that the drive element is a drive wheel of a provided between the stationary and the co-moving drive train traction mechanism. Furthermore, it is advantageous if at least the
Antriebselement und/oder Elemente des mitbewegten Antriebsstrangs kippbeweglich ausgebildet sind, um etwaige Relativbewegungen aufgrund von Biegekräften auszugleichen.Drive element and / or elements of the co-moving drive train tilting are designed to compensate for any relative movements due to bending forces.
Selbstverständlich kann neben der oder den Mahlrollen auch der Mahlteller über einen eigenen Antrieb verfügen. Die Verteilung der Antriebsleistung auf mehrereOf course, in addition to the one or more grinding rollers and the grinding table have its own drive. The distribution of drive power to several
Antriebe hat den Vorteil, dass kleinere und damit kostengünstigere Antriebe verwendet werden können.Drives has the advantage that smaller and therefore less expensive drives can be used.
Gemäß einer bevorzugten Ausgestaltung ist die Kippachse des Schwinghebels in Drehrichtung des Mahltellers hinter der Mahlrollenachse angeordnet. Des Weiteren umfasst die Rollenmühle wenigstens ein mit dem Schwinghebel in Wirkkontakt stehendes Anpresssystem zur Einstellung des Anpressdrucks der Mahlrolle.According to a preferred embodiment, the tilting axis of the rocking lever is arranged in the direction of rotation of the grinding table behind the Mahlrollenachse. Furthermore, the roller mill comprises at least one pressing system in operative contact with the rocking lever for adjusting the contact pressure of the grinding roller.
Weitere Vorteile und Ausgestaltungen der Erfindung werden im Folgenden anhand der Beschreibung und der Zeichnung näher erläutert.Further advantages and embodiments of the invention will be explained in more detail below with reference to the description and the drawing.
In der Zeichnung zeigenIn the drawing show
Fig. Ia eine schematische Draufsicht einer Rollenmühle gemäß einem ersten Ausführungsbeispiel,1a is a schematic plan view of a roller mill according to a first embodiment,
Fig. Ib eine schematische Seitenansicht des ersten Ausführungsbeispieles,1b is a schematic side view of the first embodiment,
Fig. 2a eine Seitenansicht einer Rollenmühle gemäß einem zweiten Ausführungsbeispiel,2a is a side view of a roller mill according to a second embodiment,
Fig. 2b eine Schnittdarstellung längs der Linie A-A der Fig. 2a,2b is a sectional view taken along the line A-A of Fig. 2a,
Fig. 3 eine schematische Darstellung einer Rollenmühle gemäß einem dritten Ausführungsbeispiel, Fig. 4 eine schematische Darstellung einer Rollenmühle gemäß einem vierten Ausfuhrungsbeispiel und3 is a schematic representation of a roller mill according to a third embodiment, Fig. 4 is a schematic representation of a roller mill according to a fourth exemplary embodiment and
Fig. 5 eine schematische Darstellung einer Rollenmühle gemäß einem fünften Ausführungsbeispiel,5 is a schematic representation of a roller mill according to a fifth embodiment,
Die in Fig. Ia und Ib dargestellte Rollenmühle besteht im Wesentlichen aus einem um eine Mühlenachse drehbar gelagerten Mahlteller 1, wenigstens einer Mahlrolle 2, die um eine Mahlrollenachse 3 drehbar ist und mit dem Mahlteller in Abrolleingriff steht, sowie wenigstens einem Schwinghebel 4 zur Halterung der Mahlrolle 2. DerThe roller mill shown in Fig. Ia and Ib consists essentially of a rotatably mounted about a mill axis grinding plate 1, at least one grinding roller 2 which is rotatable about a Mahlrollenachse 3 and is in Abrolleingriff with the grinding table, and at least one rocker arm 4 for holding the Mahlrolle 2. Der
Schwinghebel weist eine Kippachse 5 auf, wobei die Kippachse parallel zur Mahlrollenachse 3 ausgerichtet ist.Rocking lever has a tilting axis 5, wherein the tilting axis is aligned parallel to Mahlrollenachse 3.
Des Weiteren ist wenigstens ein mit dem Schwinghebel 4 in Wirkkontakt stehendes Anpresssystem 6 zur Einstellung des Anpressdrucks der Mahlrolle vorgesehen.Furthermore, at least one pressing system 6 in operative contact with the oscillating lever 4 is provided for adjusting the contact pressure of the grinding roller.
Dieses Anpresssystem kann beispielsweise durch ein hydro-pneumatisches Federsystem gebildet werden.This pressing system can be formed for example by a hydro-pneumatic spring system.
Während der Mahlteller und die Mahlrolle innerhalb eines Mühlengehäuses 7 angeordnet sind, ist der Schwinghebel zweckmäßigerweise außerhalb desWhile the grinding table and the grinding roller are arranged within a mill housing 7, the rocking lever is expediently outside the mill
Mühlengehäuses gelagert. Zum Antreiben der Mahlrolle 2 ist ein ortsfest angeordneter Motor 8 vorgesehen, der über einen ortsfesten Antriebsstrang und einen mit dem Schwinghebel 4 mitbewegten Antriebsstrang mit der Mahlrolle 2 inMill housing stored. To drive the grinding roller 2, a stationarily arranged motor 8 is provided, which via a stationary drive train and a co-moving with the rocker arm 4 drive train with the grinding roller 2 in
Verbindung steht. Der ortsfeste Antriebsstrang weist hier ein Antriebselement 9 auf, dass mit dem mitbewegten Antriebsstrang in Kontakt steht und koaxial zurConnection stands. The fixed drive train here has a drive element 9 that is in contact with the co-moving drive train and coaxial with
Kippachse 5 des Schwinghebels 4 angeordnet ist. Dieses Antriebselement 9 wird über Zahnräder 10, 11 vom Motor 8 angetrieben. Der mitbewegte Antriebsstrang weist einen mit der Mahlrolle 2 verbundenen Zahnkranz 12 auf, der direkt oder, wie dargestellt, über ein Zwischenrad 13 mit dem Antriebselement 9 in Wirkverbindung steht. Das Antriebselement 9 und/oder das Zwischenrad 13 sowie der Zahnkranz 12 können kippbeweglich gehaltert sein, um etwaige Biegebeanspruchungen des Schwinghebels oder der Mahlrollenachse ausgleichen zu können.Tilting axis 5 of the rocker arm 4 is arranged. This drive element 9 is driven by gears 8, 11 from the motor 8. The co-moving drive train has a connected to the grinding roller 2 ring gear 12, which is directly or, as shown, via an intermediate 13 with the drive element 9 in operative connection. The drive element 9 and / or the intermediate gear 13 and the ring gear 12th can be held tiltable to compensate for any bending stresses of the rocker arm or Mahlrollenachse can.
Durch die koaxiale Anordnung das Antriebselementes 9 verändert sich der Abstand zwischen der Mahlrollenachse 3 und der Achse des Antriebselementes 9 auch bei einer Bewegung des Schwinghebels 4 nicht, sodass eine sichere Übertragung der Antriebsleistung gewährleistet ist.Due to the coaxial arrangement of the drive element 9, the distance between the Mahlrollenachse 3 and the axis of the drive element 9 does not change even with a movement of the rocker arm 4, so that a secure transmission of the drive power is guaranteed.
Für die Zerkleinerung ist es von Vorteil, wenn die Kippachse des Schwinghebels 4 in Drehrichtung 14 des Materials hinter der Mahlrollenachse 3 angeordnet ist. In derFor the comminution, it is advantageous if the tilting axis of the rocking lever 4 is arranged in the direction of rotation 14 of the material behind the Mahlrollenachse 3. In the
Rollenmühle sind vorzugsweise mehrere Mahlrollen, insbesondere zwei, vier oder sechs Mahlrollen vorgesehen, die jede über einen eigenen Antrieb verfügen können. Darüber hinaus kann es zweckmäßig sein, den Mahlteller mit einen eigenen Antrieb auszustatten.Roller mill are preferably provided a plurality of grinding rollers, in particular two, four or six grinding rollers, each of which may have its own drive. In addition, it may be appropriate to equip the grinding plate with its own drive.
Anstelle der Übertragung der Antriebsleistung über das Antriebselement 9, das Zwischenrad 13 und den Zahnkranz 12 könnte auch ein Zugmittelgetriebe vorgesehen werden, dessen Antriebsrad wiederum koaxial zur Kippachse 5 anzuordnen wäre. Anstelle des Zugmittelgetriebes könnte aber auch ein Kegelradgetriebe vorgesehen werden. Das Antriebselement 9 wäre dann als Kegelrad auszubilden, das wiederum koaxial zur Kippachse 5 angeordnet wird.Instead of the transmission of the drive power via the drive element 9, the intermediate gear 13 and the ring gear 12 and a traction mechanism could be provided, the drive wheel in turn would be arranged coaxially to the tilting axis 5. Instead of the traction mechanism but also a bevel gear could be provided. The drive element 9 would then be formed as a bevel gear, which in turn is arranged coaxially to the tilting axis 5.
Im zweiten Ausführungsbeispiel gemäß den Figuren 2a und 2b wird das Antriebselement 9 durch ein koaxial zur Kippachse 5 angeordnetes Ritzel gebildet, dass mit den Zahnkranz 12 kämmt. Auf das Zwischenrad 13 gemäß Fig. Ia wurde hier verzichtet. Der Motor 8 treibt über ein Getriebe 15, beispielsweise eine Zahnradgetriebestufe, das Ritzel 9 an. Der Motor 8 ist dabei so ausgebildet, dass der ortsfeste Antriebsstrang um 180° umgelenkt wird.In the second exemplary embodiment according to FIGS. 2 a and 2 b, the drive element 9 is formed by a pinion arranged coaxially with the tilting axis 5, which meshes with the ring gear 12. On the intermediate 13 of FIG. Ia was omitted here. The motor 8 drives via a gear 15, for example, a gear transmission stage, the pinion 9 at. The motor 8 is designed so that the stationary drive train is deflected by 180 °.
Der Schwinghebel 4 weist zwei Schwenkarme 4a auf, welche die Mahlrollenachse 3 halten und um die Kippachse 5 schwenkbeweglich gelagert sind. Das Anpresssystem 6 wirkt in diesem Fall auf Zug und kann als hydro-pneumatisches Federsystem ausgebildet werden. Durch diese Anordnung ergibt sich ein sehr kompaktes Antriebssystem für die Mahlrolle 2.The rocker arm 4 has two pivot arms 4a, which hold the Mahlrollenachse 3 and are mounted pivotably about the tilting axis 5. The pressure system 6 acts in this case on train and can be designed as a hydro-pneumatic spring system. By this arrangement results in a very compact drive system for the grinding roller. 2
Wenngleich die parallele Anordnung von Mahlrollenachse 3 und Kippachse 5 bevorzugt wird, ist grundsätzlich auch eine geschränkte Anordnung von Mahlrollenachse 3 und Kippachse 5 denkbar. Unter einer geschränkten Anordnung sind dabei alle Ausrichtungen der Mahlrollenachse 3 zur Kippachse 5 gemeint, die nicht parallel und nicht senkrecht zueinander sind.Although the parallel arrangement of Mahlrollenachse 3 and tilt axis 5 is preferred, in principle, a restricted arrangement of Mahlrollenachse 3 and tilt axis 5 is conceivable. By a restricted arrangement are meant all orientations of the grinding roller axis 3 to the tilting axis 5, which are not parallel and not perpendicular to each other.
In den Figuren 3 bis 5 sind drei verschiedene Ausführungsbeispiele einer solchen geschränkten Anordnung dargestellt. In allen Beispielen sind der ortsfeste und der mitbewegte Antriebsstrang über zwei Kegelräder 16, 17 miteinander verbunden, wobei die Kegelräder derart angeordnet sind, dass sich die Achsen der Kegelräder auf der Kippachse 5 schneiden.In the figures 3 to 5 three different embodiments of such a restricted arrangement are shown. In all examples, the stationary and the co-moving drive train via two bevel gears 16, 17 are connected to each other, wherein the bevel gears are arranged such that the axes of the bevel gears on the tilt axis 5 intersect.
In den Ausführungsbeispielen gemäß Figuren 3 und 5 ist das Kegelrad 16 des ortsfesten Antriebsstrang nach wie vor koaxial zur Kippachse 5 ausgerichtet. Im Ausführungsbeispiel gemäß Fig. 3 wurde die Mahlrollenachse 3 geschränkt angeordnet, während im Ausführungsbeispiel gemäß Fig. 5 die Kippachse 5 in Bezug auf die Mahlrollenachse gedreht wurde. Beim Ausführungsbeispiel gemäß Fig. 4 ist die Achse des Kegelrades 16 parallel zur Mahlrollenachse 3 ausgerichtet.In the embodiments according to Figures 3 and 5, the bevel gear 16 of the stationary drive train is still coaxially aligned with the tilting axis 5. In the embodiment according to FIG. 3, the grinding roller axis 3 has been arranged in a restricted manner, while in the exemplary embodiment according to FIG. 5 the tilting axis 5 has been rotated with respect to the grinding roller axis. In the embodiment according to FIG. 4, the axis of the bevel gear 16 is aligned parallel to the grinding roller axis 3.
In allen drei Fällen schneiden sich die Achsen der zugeordneten Kegelräder 16, 17 auf der Kippachse 5 und gewährleisten dadurch auch bei einer geschränktenIn all three cases, the axes of the associated bevel gears 16, 17 intersect on the tilting axis 5 and thereby ensure even in a restricted
Anordnung von Mahlrollenachse 2 und Kippachse 5 eine sichere Übertragung der Antriebsleistung. Auch bei dieser Variante können die Kegelräder kippbeweglich gehaltert werden.Arrangement of Mahlrollenachse 2 and tilt axis 5 secure transmission of the drive power. Also in this variant, the bevel gears can be supported tiltable.
Auch wenn die Antriebsleistung auf mehrere Motoren aufgeteilt wird, weisen diese ein beträchtliches Gewicht auf, sodass es gerade im Hinblick auf die Auslegung des Schwinghebels sowie dessen Lagerung und Ansteuerung vorteilhaft ist, wenn der Motor und ggf. ein Teil des Getriebes ortsfest angeordnet wird. Dadurch lassen sich auch etwaige Drehmomente auf einfache Weise über das Fundament ableiten.Even if the drive power is divided among several engines, they have a considerable weight, so it is precisely in terms of the interpretation of the Swing lever and its storage and control is advantageous if the engine and possibly a part of the transmission is arranged stationary. As a result, any torques can be derived in a simple manner on the foundation.
Durch die oben beschriebene Anordnung des mit dem mitbewegten Antriebsstrang in Kontakt stehenden Antriebselements kann jedoch eine sichere Übertragung der Antriebsleistung auch bei einem ortsfesten Motor gewährleistet werden. However, a reliable transmission of the drive power can be ensured even with a stationary motor by the above-described arrangement of the co-moving drive train in contact drive element.

Claims

Patentansprüche claims
1. Rollenmühle mit a. einem um eine Mühlenachse drehbar gelagerten Mahlteller (1), b. wenigstens einer Mahlrolle (2), die um eine Mahlrollenachse (3)drehbar ist und mit dem Mahlteller in Abrolleingriff steht, c. wenigstens einem Schwinghebel (4) zur Halterung der Mahlrolle (2), der eine Kippachse (5) aufweist, wobei die Kippachse parallel oder geschränkt zur Mahlrollenachse (3) ausgerichtet ist, d. sowie mit wenigstens einem ortsfest angeordneten Motor (8) zum Antreiben der Rollenmühle,1. Roller mill with a. a grinding table (1) rotatably mounted about a mill axis, b. at least one grinding roller (2) which is rotatable about a grinding roller axis (3) and is in Abrolleingriff with the grinding table, c. at least one oscillating lever (4) for holding the grinding roller (2), which has a tilting axis (5), wherein the tilting axis is aligned parallel or set to the grinding roller axis (3), d. and at least one stationary motor (8) for driving the roller mill,
dadurch gekennzeichnet, dass der ortsfest angeordnete Motor (8) über einen Antriebsstrang zum Übertragen der Antriebsleistung mit der Mahlrolle (2) in Verbindung steht, wobei der Antriebsstrang einen ortsfesten Antriebsstrang und einen mit dem Schwinghebel (4) mitbewegten Antriebsstrang umfasst und der ortsfeste Antriebsstrang ein Antriebselement aufweist, das mit dem mitbewegten Antriebsstrang in Kontakt steht und koaxial zur Kippachse (5) des Schwinghebels (4) angeordnet ist.characterized in that the stationarily arranged motor (8) via a drive train for transmitting the drive power with the grinding roller (2) is in communication, wherein the drive train includes a fixed drive train and a rocking lever (4) mitbewegten drive train and the fixed drive train Drive element which is in contact with the co-moving drive train and coaxial with the tilting axis (5) of the rocking lever (4) is arranged.
2. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass der mitbewegten Antriebsstrang einen mit der Mahlrolle (2) verbundenen Zahnkranz (12) aufweist.2. Roller mill according to claim 1, characterized in that the co-moving drive train having a with the grinding roller (2) connected toothed rim (12).
3. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass das3. Roller mill according to claim 1, characterized in that the
Antriebselement (9) mit dem Zahnkranz (12) in Eingriff steht.Drive element (9) with the sprocket (12) is engaged.
4. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass das Antriebselement (9) mit dem Zahnkranz (12) über wenigstens ein Zwischenrad (13) in Wirkverbindung steht. 4. Roller mill according to claim 1, characterized in that the drive element (9) with the ring gear (12) via at least one intermediate wheel (13) is in operative connection.
5. Rollenmühle nach Anspruch 4, dadurch gekennzeichnet, dass das Zwischenrad (13) am Schwinghebel (4) gehaltert ist.5. Roller mill according to claim 4, characterized in that the intermediate wheel (13) on the rocking lever (4) is supported.
6. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass das Antriebselement (9) und/oder Elemente des mitbewegten Antriebsstrangs kippbeweglich gehaltert sind.6. Roller mill according to claim 1, characterized in that the drive element (9) and / or elements of the co-moving drive train are supported tiltably.
7. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass das Antriebselement (9) ein Antriebsrad eines zwischen dem ortsfesten und dem mitbewegten Antriebsstrang vorgesehenes Zugmittelgetriebe ist.7. Roller mill according to claim 1, characterized in that the drive element (9) is a drive wheel of a provided between the stationary and the co-moving drive train traction mechanism.
8. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass die Kippachse (5) des Schwinghebels (4) in Drehrichtung (14) des Mahlteller (1) hinter der Mahlrollenachse (3) angeordnet ist.8. roller mill according to claim 1, characterized in that the tilting axis (5) of the rocking lever (4) in the direction of rotation (14) of the grinding table (1) behind the Mahlrollenachse (3) is arranged.
9. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass die Rollenmühle weiterhin wenigstens ein mit dem Schwinghebel (4) in Wirkkontakt stehendes Anpresssystem (6) zur Einstellung des Anpressdrucks der Mahlrolle (2) umfasst.9. roller mill according to claim 1, characterized in that the roller mill further comprises at least one with the rocker arm (4) in operative contact pressing system (6) for adjusting the contact pressure of the grinding roller (2).
10. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass die Rollenmühle ein Mühlengehäuse (7) aufweist und der Schwinghebel (4) außerhalb des Mühlengehäuses (7) gelagert ist.10. Roller mill according to claim 1, characterized in that the roller mill has a mill housing (7) and the rocking lever (4) outside the mill housing (7) is mounted.
11. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass neben der Mahlrolle (2) auch der Mahlteller (1) über einen eigenen Antrieb verfügt.11. Roller mill according to claim 1, characterized in that in addition to the grinding roller (2) and the grinding plate (1) has its own drive.
12. Rollenmühle mit a. einem um eine Mühlenachse drehbar gelagerten Mahlteller (1), b. wenigstens einer Mahlrolle (2), die um eine Mahlrollenachse (3) drehbar ist und mit dem Mahlteller (1) in Abrolleingriff steht, c. wenigstens einem Schwinghebel (4) zur Halterung der Mahlrolle (2), der eine Kippachse (5) aufweist, wobei die Kippachse parallel oder geschränkt zur Mahlrollenachse (3) ausgerichtet ist, d. sowie mit wenigstens einem ortsfesten Motor (8) zum Antreiben der Rollenmühle,12. Roll mill with a. a grinding table (1) rotatably mounted about a mill axis, b. at least one grinding roller (2) which is rotatable about a grinding roller axis (3) and is in rolling contact with the grinding table (1), c. at least one oscillating lever (4) for holding the grinding roller (2), which has a tilting axis (5), wherein the tilting axis is aligned parallel or set to the grinding roller axis (3), d. and at least one stationary motor (8) for driving the roller mill,
dadurch gekennzeichnet, dass der ortsfeste Motor (8) über einen Antriebsstrang zum Übertragen der Antriebsleistung mit der Mahlrolle in Verbindung steht, wobei der Antriebsstrang einen ortsfesten Antriebsstrang und einen mit dem Schwinghebel mitbewegten Antriebsstrang umfasst und die beidencharacterized in that the stationary motor (8) via a drive train for transmitting the drive power is in communication with the grinding roller, wherein the drive train comprises a fixed drive train and a co-moving with the rocker arm drive train and the two
Antriebstränge über zwei Kegelräder (16, 17) miteinander verbunden sind, wobei die Kegelräder derart angeordnet sind, dass sich die Achsen der Kegelräder auf der Kippachse (5) schneiden.Drive trains via two bevel gears (16, 17) are interconnected, wherein the bevel gears are arranged such that intersect the axes of the bevel gears on the tilting axis (5).
13. Rollenmühle nach Anspruch 12, dadurch gekennzeichnet, dass das13. Roller mill according to claim 12, characterized in that the
Antriebselement und/oder Elemente des mitbewegten Antriebsstrangs kippbeweglich gehaltert sind.Drive element and / or elements of the co-moving drive train are supported tiltably.
14. Rollenmühle nach Anspruch 12, dadurch gekennzeichnet, dass die Kippachse (5) des Schwinghebels (4) in Drehrichtung des Mahlteller (1) hinter der14. Roller mill according to claim 12, characterized in that the tilting axis (5) of the rocking lever (4) in the direction of rotation of the grinding table (1) behind the
Mahlrollenachse (3) angeordnet ist.Mahlrollenachse (3) is arranged.
15. Rollenmühle nach Anspruch 12, dadurch gekennzeichnet, dass die Rollenmühle ein Mühlengehäuse (7) aufweist und der Schwinghebel (4) außerhalb des Mühlengehäuses (7) gelagert ist. 15. Roller mill according to claim 12, characterized in that the roller mill has a mill housing (7) and the rocking lever (4) outside the mill housing (7) is mounted.
EP09782117A 2008-08-25 2009-08-24 Roller mill Not-in-force EP2271429B1 (en)

Applications Claiming Priority (2)

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DE102008039541A DE102008039541B4 (en) 2008-08-25 2008-08-25 roller mill
PCT/EP2009/060878 WO2010023183A1 (en) 2008-08-25 2009-08-24 Roller mill

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EP2271429A1 true EP2271429A1 (en) 2011-01-12
EP2271429B1 EP2271429B1 (en) 2011-07-20

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JP (1) JP5564044B2 (en)
CN (1) CN102112233B (en)
AT (1) ATE516881T1 (en)
DE (1) DE102008039541B4 (en)
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CN102284322B (en) * 2011-08-16 2012-09-05 天津苏美尔环保投资有限公司 Vertical roller mill
CN102553680A (en) * 2012-01-20 2012-07-11 李福全 Swing type grinding roller device
CN105080665A (en) * 2015-09-06 2015-11-25 李国良 Vertical mill
US20230059893A1 (en) 2020-01-14 2023-02-23 Gebr. Pfeiffer Se Roller Mill Having Grinding Rollers Set At An Angle

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JP2012500723A (en) 2012-01-12
US8616479B2 (en) 2013-12-31
US20110121117A1 (en) 2011-05-26
JP5564044B2 (en) 2014-07-30
WO2010023183A1 (en) 2010-03-04
DE102008039541A1 (en) 2010-03-04
CN102112233A (en) 2011-06-29
ATE516881T1 (en) 2011-08-15
CN102112233B (en) 2013-03-20
EP2271429B1 (en) 2011-07-20
DE102008039541B4 (en) 2010-05-12

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