EP0324930A2 - Roller mill - Google Patents

Roller mill Download PDF

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Publication number
EP0324930A2
EP0324930A2 EP88120017A EP88120017A EP0324930A2 EP 0324930 A2 EP0324930 A2 EP 0324930A2 EP 88120017 A EP88120017 A EP 88120017A EP 88120017 A EP88120017 A EP 88120017A EP 0324930 A2 EP0324930 A2 EP 0324930A2
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EP
European Patent Office
Prior art keywords
grinding
roller
bearing
roller mill
mill according
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.)
Withdrawn
Application number
EP88120017A
Other languages
German (de)
French (fr)
Other versions
EP0324930A3 (en
Inventor
Otto Dipl.-Ing. Heinemann
Norbert Bredenhöller
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
Krupp 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 Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0324930A2 publication Critical patent/EP0324930A2/en
Publication of EP0324930A3 publication Critical patent/EP0324930A3/en
Withdrawn legal-status Critical Current

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    • 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
    • B02C15/04—Mills with pressed pendularly-mounted rollers, e.g. spring pressed
    • 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
    • B02C15/16—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs with milling members essentially having different peripheral speeds and in the form of a hollow cylinder or cone and an internal roller or cone

Definitions

  • the invention relates to a roller mill according to the preamble of claim 1.
  • the shafts of the grinding rollers are supported by means of radial bearings in arms which can be pivoted about horizontal axes within the mill housing, so that the grinding rollers can be moved vertically with respect to the grinding table.
  • the invention is therefore based on the object of designing a roller mill in accordance with the preamble of claim 1 in such a way that a particularly simple and largely standardized design is achieved which can be equipped with a different number of grinding rollers.
  • the shafts of the grinding rollers are each mounted in two self-aligning roller bearings, one of which forms a fulcrum as a fixed bearing, while the other bearing is designed as a vertically movable floating bearing.
  • the bearings therefore have a double function:
  • the two bearings of the individual grinding roller shafts are expediently arranged outside the mill housing, which enables further standardization of the mill housing (regardless of the number of grinding rollers required).
  • the roller mill illustrated in FIGS. 1 to 4 contains a mill housing 1 with a vertical axis 2.
  • a grinding table 3 is rotatably mounted about the housing axis 2 and contains a circular grinding path 3a on which grinding rollers 4 roll.
  • the grinding rollers 4 are rotatable about their axis 5 and are seated on a grinding roller shaft 6, which is supported in two bearings 7, 8.
  • the two bearings 7, 8 are designed as self-aligning roller bearings, so that the grinding roller shaft 6 can perform a tilting movement in addition to the pure rotary movement in these bearings 7, 8.
  • the bearing 7 is designed as a fixed bearing. Its center 9 thus represents a fulcrum for the grinding roller shaft 6.
  • the bearing 8 on the other hand, is moving vertically Lich floating bearing trained. For this purpose it is arranged in a bearing block 10 which is vertically movable in a sliding frame 11.
  • the shape of the slide frame 11 can be seen in particular from FIG. 3: the lower part 11a of the slide frame 11 is cranked outwards, carries the housing of the fixed bearing 7 and is provided with two eyes 11b, via which the slide frame 11 is pivotably mounted on an axis 12 is arranged lower than the fixed bearing 7.
  • the two bearings 7, 8 are arranged outside the mill housing 1.
  • Hydropneumatic springs 13 are arranged between the bearing block 10, which carries the floating bearing 8, and the upper cross member 11c of the slide frame 11, which press the bearing block 10 in the slide frame 11 downwards.
  • the individual grinding rollers 6 are each driven by a motor 14 via a slip-on gear 15, a torsion torque arm 16 being provided to absorb the torque.
  • the grinding table 3 is provided with an additional auxiliary drive 17.
  • the assembly consisting of the grinding roller 4, the grinding roller shaft 6, the bearings 7, 8, the bearing block 10, the sliding frame 11, the hydropneumatic springs 13, a memory 18 for the springs 13, the drive motor 14 and the slip-on gear 15 is as a whole the axis 12 from the mill housing 1 ago swing out.
  • a hydraulic lifting device 19 engages at the lower end of the bearing block 10, by means of which the above-mentioned grinding roller assembly is pivoted about the axis 12.
  • Fig. 1 the left grinding roller assembly is illustrated in the position pivoted outwards.
  • the hydraulic lifting device 19 can also be used to adjust the floating bearing 8 in the vertical direction by forming a stop which limits the tilting movement of the grinding rollers 4 in the direction of the grinding table 3. Due to the design of the bearings 7 and 8 as a self-aligning roller bearing, the grinding roller shaft and thus also the grinding roller 4 can perform a tilting movement in the vertical direction (around the pivot point formed by the center 9 of the fixed bearing 7) in addition to its pure rotary movement, the hydropneumatic springs 13 generate the elastic restoring forces.
  • FIGS. 1 to 4 illustrate how the roller mill according to FIGS. 1 to 4 can be equipped with a different number of grinding rollers (two, three or four) while maintaining the standard construction of the housing and the individual grinding roller assemblies can be.
  • the individual grinding roller shafts 6 are driven by a fixedly arranged motor 20 and a gear 21 via an articulated shaft 21. If the grinding roller assembly is to be pivoted outwards about the axis 12 in the manner already explained, first the PTO shaft 22 removed which the gear be 21 connects to the grinding roller shaft 6.
  • the grinding rollers 4 are loosely rotatable in the bearings 7, 8 with their grinding roller shafts 6, i. H. not driven.
  • the grinding table 3 is provided with a drive device 23 (with gear).

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

Abstract

The invention relates to a roller mill in which the shafts of the mill rollers are mounted in two compensation roller bearings of which the one is constructed as a fixed bearing and the other as a vertically moveable loose bearing. A roller mill of this kind is characterised by a standard design which is cheap to manufacture and can be equipped with a different number of mill rollers.

Description

Die Erfindung betrifft eine Rollenmühle entspre­chend dem Oberbegriff des Anspruches 1.The invention relates to a roller mill according to the preamble of claim 1.

Bei den bisher bekannten Rollenmühlen der im Ober­begriff des Anspruches 1 genannten Art sind die Wellen der Mahlrollen mittels Radiallagern in Ar­men gelagert, die innerhalb des Mühlengehäuses um horizontale Achsen schwenkbar sind, so daß die Mahlrollen gegenüber dem Mahlteller vertikal feder­beweglich sind.In the previously known roller mills of the type mentioned in the preamble of claim 1, the shafts of the grinding rollers are supported by means of radial bearings in arms which can be pivoted about horizontal axes within the mill housing, so that the grinding rollers can be moved vertically with respect to the grinding table.

Nachteilig ist bei diesen bekannten Ausführungen vor allem, daß je nach der Zahl der benötigten Mahlrollen eine weitgehend unterschiedliche Kon­struktion erforderlich ist.The disadvantage of these known designs is that, depending on the number of grinding rollers required, a largely different construction is required.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Rollenmühle entsprechend dem Oberbegriff des Anspruches 1 so auszubilden, daß eine besonders einfache und weitgehend standardisierte Konstruck­tion erreichtwird, die sich mit einer unterschied­lichen Zahl von Mahlrollen bestücken läbt.The invention is therefore based on the object of designing a roller mill in accordance with the preamble of claim 1 in such a way that a particularly simple and largely standardized design is achieved which can be equipped with a different number of grinding rollers.

Diese Aufgabe wird erfindungsgemäß durch das kenn­zeichnende Merkmal des Anspruches 1 gelöst. Zweck­mäßige Ausgestaltungen der Erfindung sind Gegen­stand der Unteransprüche.This object is achieved by the characterizing feature of claim 1. Appropriate embodiments of the invention are the subject of the dependent claims.

Erfindungsgemäß sind die Wellen der Mahlrollen je­weils in zwei Pendewälzlagern gelagert, von denen das eine Lager als Festlager einen Drehpunkt bil­det, während das andere Lager als ein vertikal be­wegliches Loslager ausgebildet ist. Die Lager be­sitzen damit erfindungsgemäß eine Doppelfunktion:According to the invention, the shafts of the grinding rollers are each mounted in two self-aligning roller bearings, one of which forms a fulcrum as a fixed bearing, while the other bearing is designed as a vertically movable floating bearing. According to the invention, the bearings therefore have a double function:

Zum einen bilden sie eine reine Drehlagerung der Mahlrollenwellen. Zum anderen bilden sie eine Dreh­und Kipplagerung der Mahlrollenwellen zur Erzeugung einer vertikalen Bewegung der Mahlrollen zwecks an­pressung auf den Mahlteller.On the one hand, they form a pure rotary bearing for the grinding roller shafts. On the other hand, they form a rotating and tilting bearing for the grinding roller shafts to generate a vertical movement of the grinding rollers for the purpose of pressing them onto the grinding table.

Durch diese Gestaltung wird eine kostenminimierte Standardkonstruktion erreicht, die durch die Stück­zahl der Mahlrollen variabel zu einem Mahlsystem gebündelt werden kann, so daß ein weiter Leistungs­bereich mit einer Standardkonstruktion abgedeckt werden kann.With this design, a cost-minimized standard construction is achieved, which can be variably bundled into a grinding system by the number of grinding rollers, so that a wide performance range can be covered with a standard construction.

Zweckmäßig sind hierbei die beiden Lager der ein­zelnen Mahlrollenwellen außerhalb des Mühlengehäu­ses angeordnet, was eine weitergehende Standardi­sierung des Mühlengehäuses (unabhängig von der Zahl der benötigten Mahlrollen) ermöglicht.The two bearings of the individual grinding roller shafts are expediently arranged outside the mill housing, which enables further standardization of the mill housing (regardless of the number of grinding rollers required).

Einige Ausführungsbeispiele der Erfindung sind in der Zeichnung veranschaulicht. Es zeigen

  • Fig. 1 einen Vertikalschnitt durch ein erstes Ausführungsbeispiel der erfindungsgemäßen Rollenmühle,
  • Fig. 2 einen Schnitt längs der Linie II-II der
  • Fig. 1,
  • Fig. 3 eine Seiten-Teilansicht, die die Gestal­tung des Gleitrahmens für den Lagerstein des Loslagers zeigt,
  • Fig. 4 eine Ansicht in Richtung des Pfeiles X der Fig. 3,
  • Fig. 5, 6 und 7 Aufsichten auf drei mit einer un­terschiedlichen Zahl von Mahlrol­len ausgerüstete Ausführungsbei­spiele der erfindungsgemäßen Rol­lenmühle,
  • Fig. 8 Ein Detail eines weiteren Ausführungsbei­spieles,
  • Fig. 9 einen Schnitt (entsprechend Fig. 1) durch eine weitere Ausführungsform,
  • Fig. 10 einen Schnitt längs der Linie X-X der
  • Fig. 9.
Some embodiments of the invention are illustrated in the drawing. Show it
  • 1 is a vertical section through a first embodiment of the roller mill according to the invention,
  • Fig. 2 shows a section along the line II-II of
  • Fig. 1,
  • 3 is a partial side view showing the design of the slide frame for the bearing block of the floating bearing,
  • 4 is a view in the direction of arrow X of FIG. 3,
  • 5, 6 and 7 are views of three embodiments of the roller mill according to the invention equipped with a different number of grinding rollers,
  • 8 shows a detail of a further exemplary embodiment,
  • 9 shows a section (corresponding to FIG. 1) through a further embodiment,
  • Fig. 10 is a section along the line XX of the
  • Fig. 9.

Die in den Fig. 1 bis 4 veranschaulichte Rollenmüh­le enthält ein Mühlengehäuse 1 mit vertikaler Achse 2. Im Mühlengehäuse 1 ist um die Gehäuseachse 2 drehbar ein Mahlteller 3 gelagert, der eine kreis­ringförmige Mahlbahn 3a enthält, auf der sich Mahl­rollen 4 abwälzen.The roller mill illustrated in FIGS. 1 to 4 contains a mill housing 1 with a vertical axis 2. In the mill housing 1, a grinding table 3 is rotatably mounted about the housing axis 2 and contains a circular grinding path 3a on which grinding rollers 4 roll.

Die Mahlrollen 4 sind um ihre Achse 5 drehbar und sitzen auf einer Mahlrollenwelle 6, die in zwei Lagern 7, 8 gelagert ist.The grinding rollers 4 are rotatable about their axis 5 and are seated on a grinding roller shaft 6, which is supported in two bearings 7, 8.

Die beiden Lager 7, 8 sind als Pendelwälzlager aus­gebildet, so daß die Mahlrollenwelle 6 zusätzlich zur reinen Drehbewegung in diesen Lagern 7, 8 eine Kippbewegung ausführen kann.The two bearings 7, 8 are designed as self-aligning roller bearings, so that the grinding roller shaft 6 can perform a tilting movement in addition to the pure rotary movement in these bearings 7, 8.

Das Lager 7 ist als Festlager ausgebildet. Sein Mittelpunkt 9 stellt damit einen Drehpunkt für die Mahlrollenwelle 6 dar.The bearing 7 is designed as a fixed bearing. Its center 9 thus represents a fulcrum for the grinding roller shaft 6.

Das Lager 8 ist demgegenüber als ein vertikal beweg­ liches Loslager ausgebildet. Es ist zu diesem Zweck in einem Lagerstein 10 angeordnet, der in einem Gleitrahmen 11 vertikal beweglich ist. Die Form des Gleitrahmens 11 ist insbesondere aus Fig. 3 ersichtlicht: Der untere Teil 11a des Gleitrahmens 11 ist nach außen gekröpft, trägt das Gehäuse des Festlagers 7 und ist mit zwei Augen 11b versehen, über die der Gleitrahmen 11 an einer Achse 12 schwenkbar gelagert ist, die tiefer als das Fest­lager 7 angeordnet ist.The bearing 8, on the other hand, is moving vertically Lich floating bearing trained. For this purpose it is arranged in a bearing block 10 which is vertically movable in a sliding frame 11. The shape of the slide frame 11 can be seen in particular from FIG. 3: the lower part 11a of the slide frame 11 is cranked outwards, carries the housing of the fixed bearing 7 and is provided with two eyes 11b, via which the slide frame 11 is pivotably mounted on an axis 12 is arranged lower than the fixed bearing 7.

Wie insbesondere die Fig. 1 und 3 zeigen, sind die beiden Lager 7, 8 außerhalb des Mühlengehäuses 1 angeordnet.1 and 3 in particular, the two bearings 7, 8 are arranged outside the mill housing 1.

Zwischen dem Lagerstein 10, der das Loslager 8 trägt, und dem oberen Querträger 11c des Gleitrah­mens 11 sind hydropneumatische Federn 13 angeord­net, die den Lagerstein 10 im Gleitrahmen 11 nach unten pressen.Hydropneumatic springs 13 are arranged between the bearing block 10, which carries the floating bearing 8, and the upper cross member 11c of the slide frame 11, which press the bearing block 10 in the slide frame 11 downwards.

Der Antrieb der einzelnen Mahlrollen 6 erfolgt je­weils durch einen Motor 14 über ein Aufsteckgetrie­be 15, wobei zur Aufdnahme des Drehmomentes eine Torsionsdrehmomentstütze 16 vorgesehen ist.The individual grinding rollers 6 are each driven by a motor 14 via a slip-on gear 15, a torsion torque arm 16 being provided to absorb the torque.

Der Mahlteller 3 ist bei dem Ausführungsbeispiel gemäß den Fig. 1 bis 4 mit einem zusätzlichen Hilfs­antrieb 17 versehen.In the exemplary embodiment according to FIGS. 1 to 4, the grinding table 3 is provided with an additional auxiliary drive 17.

Die aus der Mahlrolle 4, der Mahlrollenwelle 6, den Lagern 7, 8, dem Lagerstein 10, dem Gleitrahmen 11, den hydropneumatischen Federn 13, einem Speicher 18 für die Federn 13, dem Antriebsmotor 14 und dem Aufsteckgetriebe 15 bestehende Baueinheit ist als Ganzes um die Achse 12 aus dem Mühlengehäuse 1 her­ ausschwenkbar. Zu diesem Zweck greift am unteren Ende des Lagersteines 10 eine hydraulische Hebe­einrichtung 19 an, durch deren Betätigung die vor­stehend genannte Mahlrollenbaueinheit um die Achse 12 geschwenkt wird. In Fig. 1 ist die linke Mahl­rollenbaueinheit in der nach außen geschwenkten Lage veranschaulicht.The assembly consisting of the grinding roller 4, the grinding roller shaft 6, the bearings 7, 8, the bearing block 10, the sliding frame 11, the hydropneumatic springs 13, a memory 18 for the springs 13, the drive motor 14 and the slip-on gear 15 is as a whole the axis 12 from the mill housing 1 ago swing out. For this purpose, a hydraulic lifting device 19 engages at the lower end of the bearing block 10, by means of which the above-mentioned grinding roller assembly is pivoted about the axis 12. In Fig. 1 the left grinding roller assembly is illustrated in the position pivoted outwards.

Die hydraulische Hebeeinrichtung 19 kann zugleich dazu verwendet werden, das Loslager 8 in vertikaler Richtung einzustellen, indem es einen Anschlag bil­det, der die Kippbewegung der Mahlrollen 4 in Rich­tung auf den Mahlteller 3 begrenzt. Bedingt durch die Ausbildung der Lager 7 und 8 als Pendelwälzla­ger kann die Mahlrollenwelle und damit auch die Mahlrolle 4 im Betrieb zusätzlich zu ihrer reinen Drehbewegung eine Kippbewegung in vertikaler Rich­tung (um den vom Mittelpunkt 9 des Festlagers 7 ge­bildeten Drehpunkt) ausführen, wobei die hydropneu­matischen Federn 13 die elastischen Rückstellkräfte erzeugen.The hydraulic lifting device 19 can also be used to adjust the floating bearing 8 in the vertical direction by forming a stop which limits the tilting movement of the grinding rollers 4 in the direction of the grinding table 3. Due to the design of the bearings 7 and 8 as a self-aligning roller bearing, the grinding roller shaft and thus also the grinding roller 4 can perform a tilting movement in the vertical direction (around the pivot point formed by the center 9 of the fixed bearing 7) in addition to its pure rotary movement, the hydropneumatic springs 13 generate the elastic restoring forces.

In den Fig. 5 bis 7 ist veranschaulicht, wie die Rollenmühle gemäß den Fig. 1 bis 4 mit einer un­terschiedlichen Zahl von Mahlrollen (zwei, drei bzw. vier) ausgerüstet werden kann, wobei die Stan­dardkonstruktion des Gehäuses und der einzelnen Mahlrollen-Baueinheiten beibehalten werden kann.5 to 7 illustrate how the roller mill according to FIGS. 1 to 4 can be equipped with a different number of grinding rollers (two, three or four) while maintaining the standard construction of the housing and the individual grinding roller assemblies can be.

Bei dem Ausführungsbeispiel gemäß Fig. 8 erfolgt der Antrieb der einzelnen Mahlrollenwellen 6 durch einen ortsfest angeordneten Motor 20 und ein Getrie­be 21 über eine Gelenkwelle 21. Soll die Mahlrollen­Baueinheit in der Bereits erläuterten Weise um die Achse 12 nach außen geschwenkt werden, so wird zu­nächst die Gelenkwelle 22 entfernt, die das Getrie­ be 21 mit der Mahlrollenwelle 6 verbindet.In the exemplary embodiment according to FIG. 8, the individual grinding roller shafts 6 are driven by a fixedly arranged motor 20 and a gear 21 via an articulated shaft 21. If the grinding roller assembly is to be pivoted outwards about the axis 12 in the manner already explained, first the PTO shaft 22 removed which the gear be 21 connects to the grinding roller shaft 6.

Bei dem Ausführungsbeispiel gemäß den Fig. 9 und 10 sind die Mahlrollen 4 mit ihren Mahlrollenwellen 6 lose drehbar in den Lagern 7, 8 gelagert, d. h. nicht angetrieben. Der Mahlteller 3 ist hierbei mit einer Antriebseinrichtung 23 (mit Getriebe) verse­hen.In the embodiment according to FIGS. 9 and 10, the grinding rollers 4 are loosely rotatable in the bearings 7, 8 with their grinding roller shafts 6, i. H. not driven. The grinding table 3 is provided with a drive device 23 (with gear).

Im übrigen entspricht die Ausbildung der Lagerung der Mahlrollenwellen 6 dem zuvor erläuterten Aus­führungsbeispiel.Otherwise, the design of the mounting of the grinding roller shafts 6 corresponds to the exemplary embodiment explained above.

Claims (10)

1. Rollenmühle, enthaltend a) ein Mühlengehäuse (1) mit vertikaler Achse (2), b) einen im Mühlengehäuse (1) angeordneten, um die Gehäuseachse (2) drehbar gelagerten Mahl­teller (3), c) auf dem Mahlteller (3) abrollende Mahlrollen (4), die um ihre Achse (5) frei drehbeweglich und im wesentlichen stationär, jedoch gegen­über dem Mahlteller (3) vertikal federbeweg­lich fliegend auf Wellen (6) angeordnet sind, dadurch gekennzeichnet, daß
 d) die Wellen (6) der Mahlrollen (4) jeweils in zwei Pendelwälzlagern (7, 8) gelagert sind, von denen das eine Lager (7) als Festlager einen Drehpunkt (9) bildet, während das an­dere Lager (8) als ein vertikal bewegliches Loslager ausgebildet ist. 1. Roller mill containing a) a mill housing (1) with a vertical axis (2), b) a grinding table (3) arranged in the mill housing (1) and rotatably mounted about the housing axis (2), c) on the grinding table (3) rolling grinding rollers (4) which are freely rotatable about their axis (5) and essentially stationary, but are arranged so as to be spring-loaded vertically on the shafts (6) vertically movable relative to the grinding plate (3), characterized in that
d) the shafts (6) of the grinding rollers (4) are each mounted in two spherical roller bearings (7, 8), of which one bearing (7) as a fixed bearing forms a fulcrum (9), while the other bearing (8) as one vertically movable floating bearing is formed. 2. Rollenmühle nach Anspruch 1, dadurch gekenn­zeichnet, daß die beiden Lager (7, 8) der bei­den Mahlrollenwellen (6) außerhalb des Mühlen­gehäuses (1) angeordnet sind.2. Roller mill according to claim 1, characterized in that the two bearings (7, 8) of the two grinding roller shafts (6) are arranged outside the mill housing (1). 3. Rollenmühle nach Anspruch 1, dadurch gekenn­zeichnet, daß das Loslager (8) in einem Lager­stein (10) angeordnet ist, der in einem Gleit­rahmen (11) vertikal beweglich ist.3. Roller mill according to claim 1, characterized in that the floating bearing (8) is arranged in a bearing block (10) which is vertically movable in a sliding frame (11). 4. Rollenmühle nach Anspruch 3, dadurch gekenn­zeichnet, daß zwischen dem Lagerstein und dem oberen Querträger (11c) des Gleitrahmens (11) hydropneumatische Federn (13) vorgesehen sind, die den Lagerstein (10) im Gleitrahmen (11) nach unten pressen.4. Roller mill according to claim 3, characterized in that between the bearing block and the upper cross member (11c) of the slide frame (11) hydropneumatic springs (13) are provided which press the bearing block (10) in the slide frame (11) downwards. 5. Rollenmühle nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß das Festlager (7) von dem Gleitrahmen (11) getragen wird, der um eine tie­fer als das Festlager (7) angeordnete Achse (12) derart schenkbar ist, daß aus Mahlrolle (4), Mahlrollenwelle (6), den beiden Lagern (7, 8), dem Lagerstein (10), dem Gleitrahmen (11) und den hydropneumatischen Federn (13) bestehende Baueinheit als Ganzes relativ zum Mühlengehäuse (1) nach außen schwenkbar ist.5. Roller mill according to claims 1 to 4, characterized in that the fixed bearing (7) is carried by the sliding frame (11) which can be donated about a lower than the fixed bearing (7) arranged axis (12) in such a way that from grinding roller (4), grinding roller shaft (6), the two bearings (7, 8), the bearing block (10), the slide frame (11) and the hydropneumatic springs (13) existing unit as a whole can be pivoted outwards relative to the mill housing (1) . 6. Rollenmühle nach Anspruch 5, dadurch gekenn­zeichnet, daß die genannte Baueinheit mittels einer hydraulischen Hebeeinrichtung (19) schwenk­bar ist, die am Lagerstein (10) angreift und zu­gleich zur Einstellung des Loslagers (8) in ver­tikaler Richtung dient.6. Roller mill according to claim 5, characterized in that said assembly is pivotable by means of a hydraulic lifting device (19) which engages on the bearing block (10) and at the same time serves to adjust the floating bearing (8) in the vertical direction. 7. Rollenmühle nach Anspruch 1, dadurch gekenn­zeichnet, daß die Mahlrollenwellen (6) durch ortsfeste Antriebseinrichtungen (20, 21) über Gelenkwellen (22) angetrieben sind.7. Roller mill according to claim 1, characterized in that the grinding roller shafts (6) are driven by stationary drive devices (20, 21) via articulated shafts (22). 8. Rollenmühle nach Anspruch 1, bei der die Mahl­rollen (4) angetrieben sind, dadurch gekenn­zeichnet, daß der Mahteller (3) einen zusätz­lichen Hilfsantrieb (17) aufweist.8. Roller mill according to claim 1, in which the grinding rollers (4) are driven, characterized in that the grinding plate (3) has an additional auxiliary drive (17). 9. Rollenmühle nach Anspruch 1, bei der die Mahl­rollen (4) lose drehbar gelagert sind, dadurch gekennzeichnet, daß der Mahlteller (3) mit einem Antrieb (23) versehen ist.9. Roller mill according to claim 1, in which the grinding rollers (4) are loosely rotatable, characterized in that the grinding plate (3) is provided with a drive (23). 10. Rollenmühle nach Anspruch 1, dadurch gekenn­zeichnet, daß die Mahlrollenwellen (6) durch Antriebseinrichtungen (14) mit Aufsteckgetrie­ben (15) und Drehmomentstützen (16) angetrie­ben sind.10. Roller mill according to claim 1, characterized in that the grinding roller shafts (6) are driven by drive devices (14) with slip-on gears (15) and torque supports (16).
EP88120017A 1988-01-21 1988-11-30 Roller mill Withdrawn EP0324930A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3801728A DE3801728C2 (en) 1988-01-21 1988-01-21 Roller mill
DE3801728 1988-01-21

Publications (2)

Publication Number Publication Date
EP0324930A2 true EP0324930A2 (en) 1989-07-26
EP0324930A3 EP0324930A3 (en) 1990-03-21

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EP88120017A Withdrawn EP0324930A3 (en) 1988-01-21 1988-11-30 Roller mill

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US (1) US4896837A (en)
EP (1) EP0324930A3 (en)
DE (1) DE3801728C2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008037515A1 (en) * 2006-08-11 2008-04-03 Polysius Ag Roller mill or roll mill
CN102131584A (en) * 2008-08-25 2011-07-20 坡利西斯股份公司 Roller mill
DE102006061328B4 (en) * 2006-12-22 2014-01-16 Gebr. Pfeiffer Ag roller mill
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EP0324930A3 (en) 1990-03-21
DE3801728C2 (en) 1998-07-02
US4896837A (en) 1990-01-30
DE3801728A1 (en) 1989-07-27

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