EP0667186B1 - Broyeur à rouleaux - Google Patents

Broyeur à rouleaux Download PDF

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Publication number
EP0667186B1
EP0667186B1 EP94119972A EP94119972A EP0667186B1 EP 0667186 B1 EP0667186 B1 EP 0667186B1 EP 94119972 A EP94119972 A EP 94119972A EP 94119972 A EP94119972 A EP 94119972A EP 0667186 B1 EP0667186 B1 EP 0667186B1
Authority
EP
European Patent Office
Prior art keywords
gear
coupling
machine frame
lever
roll mill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94119972A
Other languages
German (de)
English (en)
Other versions
EP0667186A1 (fr
Inventor
Jörg Dipl.-Ing. Bettenworth
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 EP0667186A1 publication Critical patent/EP0667186A1/fr
Application granted granted Critical
Publication of EP0667186B1 publication Critical patent/EP0667186B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/42—Driving mechanisms; Roller speed control
    • B02C4/426—Torque counterbalancing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones

Definitions

  • the invention relates to a roller mill, in particular a material bed roller mill, according to the generic term of claim 1.
  • Roller mills of this type which are also known as two-roller mills are well known from practice.
  • the torque of these roller mills must be the gearbox mounted on the shafts of the two rollers or gear housing in a corresponding manner supported on a mill foundation or machine frame by rolling over their waves are rotatably mounted.
  • every gearbox or gearbox housing that on the drive shaft ends of the two rollers the roller mill is attached, a separate one Assign torque support device.
  • These two Gearbox housings record the reaction moments each one is essentially horizontal Direction extending lever plate, which as an unequal arm Levers are formed.
  • the lever plate on the one hand, each gearbox housing is over its long outer lever articulated with a downward, relatively long outer rod connected, which in turn is connected to a one-armed outer lever, the fixed on a stationary, horizontal and attached torsion shaft extending transversely to the roller shaft is.
  • each lever plate is articulated with a shorter inner, after rod pointing below, which in turn over an inner one arm lever with the inner end of the Torsion shaft is connected.
  • the with one arm connected to the torsion shaft Lever arms are each of different lengths, of which the outer lever arm, which over the long outer Rod with the outer longer lever arm is connected, a shorter lever arm length has as the inner lever arm that over the inner short rod with the short lever plate arm is articulated.
  • the invention is therefore based on the object Roller mill, in particular a material bed roller mill, the in the preamble of claim 1 presupposed type create, even with relatively high stress and for relatively large wear-related ones Moving the idler roller an extreme reliable and essentially free of lateral forces Torque support in relation to the associated roller shaft is guaranteed.
  • each Gearbox also by a separate (from the other Gearbox-independent) torque support device is supported against the machine frame
  • any gear can or each gearbox housing for itself - in relation on the occurring torque - supported on the machine frame be, with the two rollers only over the crushed ground between them can.
  • a particular advantage of one Koppelgetriebes can be seen in that the Stiffness of the torque support device thus formed even with relatively large wear paths largely unaffected by the loose roller remains. All points of force application are located in this coupling gear in about one level, what before everything for the flow of power in this coupling gear is advantageous.
  • Each by one such coupling gear connected to the machine frame Housing of the rollers can be practically free of shear force be supported with respect to the associated roller shaft.
  • Torque support device for the gearbox the fixed roller in the form of a second coupling gear form the same between this gear housing and the machine frame is arranged like that first coupling gear for the loose roller, however independent is supported by this first coupling gear.
  • the material bed roller mill 1 according to the invention is in its general structure first of all based on the Fig.1 (perspective view) explained.
  • This material bed roller mill 1 contains in the usual way a machine frame 2 with extending in the longitudinal direction Upper chords 3 and lower chords 4.
  • Upper chords 3 and lower chords 4 are - also in a manner known per se -
  • the Fixed roller 6 on its shaft 6a on both sides in the machine frame 2 in fixed bearing blocks 7 and the loose roller 5 over their shaft 5a on both sides in the machine frame 2 in floating bearing blocks 8 stored.
  • Each gear housing 9a, 10a is a separate torque support device 11 or 12 assigned to each that between the associated gear housing 9a or 10a and the machine frame 2 occurring torque take up and support against the machine frame 2 to be able to.
  • Coupling gear 11, 12 has two double-armed Lever 13, 14 or 13 ', 14' on the fixed Rotation axes 15, 16 or 15 ', 16' pivotable on the machine frame 2 are stored.
  • the second coupling gear 12 for the gear housing 10a of the fixed roller 6 is designed in principle in the same way and is arranged like the first coupling gear 11 for the loose roller 5, be the simplicity and the better
  • the first coupling gear is shown below 11 for the gear housing 9a of the loose roller 5 somewhat closer in structure and function explained (the same applies accordingly and in adapted way for the second coupling gear 12).
  • This first coupling gear 11 or each coupling gear contains in addition to the two double-armed levers 13, 14 a substantially rigid coupling member 17 and two essentially rigid connecting rods 18, 19.
  • the two double-armed levers 13, 14 of the coupling gear 11 are now on the one hand about their first one Lever arms 13a and 14a and the associated upper and lower connecting rod 18 and 19 with each other opposite upper and lower articulation points 20, 21 of the gear housing 9a and on the other hand their approximately opposing second lever arms 13b, 14b with the rigid coupling member 17 each articulated connected.
  • Each expediently has a coupling gear 11, 12 connected transmission housing 9a, 10a one firmly attached, lever-like upward pointing first approach 9b and a fixed, lever arm-like downward second approach 9c.
  • the upper first connecting rod runs accordingly 18 of the first coupling gear 11 in question Area of an upper chord 3 of the machine frame 2 and stands with one end articulated with the corresponding one upper articulation point 20 and with his other Articulated end with the free end of the upward pointing first lever arm 13a in connection, while the lower second connecting rod 19 in the region of a lower chord 4 of the machine frame 2 runs and on the one hand with the first lever arm 14a pointing downwards the lower second lever 14 and on the other hand with the lower second hinge point 21 of the associated transmission 9a is articulated.
  • the first and second lugs 9b and 9c of the gear housing 9a (or each transmission housing) essentially approximately radially and are directed vertically upwards or downwards and accordingly the ones worked into their free ends upper and lower articulation points 20 and 21 on an approximately vertical line - as in Fig. 2 dash-dotted lines - diametrically opposed to each other, then even with certain deflection movements of the lugs 9b, 9c in the circumferential direction not in the area above and below the neighboring one Reach in the gearbox (e.g. 10a).
  • the minimum distance between the two rollers 5, 6 becomes in the present case only by size or diameter the gearbox determines, i.e. it results a particularly space-saving design and arrangement for each coupling gear, so that it is particularly cheap Arrange on the outer longitudinal side of the machine frame 2 can, on which the gear 9, 10 to Drive of the rollers.
  • the size and design of the levers 13, 14 and 13 ', 14' will generally vary according to the size of the roller mill and according to the size of the machine frame 2 and the Straighten the rollers or the gearbox driving them.
  • the double-armed levers 13, 14 or 13 ', 14' in general as a lever with the same length Lever arms or designed with non-armed lever arms be, according to the most appropriate training and arrangement of the coupling gear on the machine frame.
  • each coupling gear 11, 12 as non-uniform Lever formed, the upward or downward facing, connected to the connecting rods 18, 19 first lever arms 13a, 14a are shorter than their opposing, through the coupling member 17, 17 'with each other connected second lever arms 13b, 14b.
  • the length and arrangement of the second lever arms e.g. of the two lever arms 13b and 14b of the two Levers 13, 14 of the first linkage 11, and the Length of the associated coupling link 17 or 17 'such to choose that the coupling member 17, 17 'predominantly horizontal Traction is exposed to vertical forces can be kept as low as possible.
  • the gear 9 or the associated gear housing 9a is assigned to the loose roller 5, insofar as it is important, than the named operating state (with respect to the Tensile forces) also in the different, wear-related Displacement of the loose roller 5 and associated gear 9 largely maintained shall be.
  • Each coupling element is particularly simple to construct 17, 17 'approximately in the form of a rigid flat Execute connection tab.
  • As particularly clear 1 can be seen in both coupling gears 11, 12 all articulated connections extremely simple about in the form of claw-like flap joints Plain bearings must be executed.
  • For the second coupling gear 12 is for the axis of rotation 15 'of the upper first Lever 13 'the cross member 24 and for the axis of rotation 16' of the lower second lever 14 ', the cross member 25 in the area of the lower belt 4 of the machine frame 2 attached.
  • the attachment of the trusses to the top and Lower chords 3, 4 can preferably be done by means of bolts. As a result, only tensile and compressive forces and no bending moments in the mentioned straps of the machine frame initiated.
  • first coupling gear 11 assuming that a left-turning torque are supported against the machine frame 2 should then arise in the various articulation points or connecting joints by arrows indicated directions of force. Accordingly leads the upper connecting rod 18 compressive forces in the after top-facing first lever arm 13a of the top first Lever 13, which tends to create this lever 13 - in Fig. 2 - turn to the left. At the same time are 19 tensile forces on the part of the lower connecting rod in the downward-pointing first lever arm 14a initiated the lower second lever 14, whereby the This lower second lever 14 also tends to develop - according to Fig. 2 - turn to the left.

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

Claims (11)

  1. Broyeur à cylindres, en particulier broyeur à cylindres pour lit de matière, comprenant
    a) deux cylindres (5, 6) serrés l'un contre l'autre sous pression élevée, disposés sur un bâti (2) de machine, commandés en sens inverses, dont l'un est réalisé sous la forme d'un cylindre (6) occupant une position fixe et l'autre (5), sous la forme d'un cylindre mobile déplaçable vers le cylindre occupant une position fixe,
    b) deux engrenages (9, 10) placés sur les arbres (5a, 6a) des deux cylindres (5, 6) et comportant des carters (9a, 10a) à chacun desquels est associé un dipositif particulier (11, 12) d'appui du couple de rotation apparaissant entre chacun de ces carters d'engrenage et le bâti (2) de la machine,
       caractérisé en ce que :
    c) au moins le support du couple de rotation destiné au carter d'engrenage (9a) du cylindre mobile (5) est réalisé à la forme d'un mécanisme à bielles (11, 12) qui comprend deux leviers doubles (13, 14, 13', 14') qui sont montés oscillants sur le bâti (2) de la machine sur des axes fixes de rotation (15, 16, 15', 16') et qui sont reliés par articulation d'une part par l'un de leurs bras de levier (13a, 14a) à des lieux opposés supérieur et inférieur d'articulation (20, 21) du carter d'engrenage (9a) et d'autre part par leurs deuxièmes bras de levier tournés l'un vers l'autre (13b, 14b) à un élément rigide de couplage (17).
  2. Broyeur à cylindres selon la revendication 1, caractérisé en ce que le dispositif de support des couples de rotation destiné au carter d'engrenage (10a) du cylindre (6) occupant une position fixe est réalisé à peu près à la forme d'un deuxième mécanisme à bielles (12) qui est disposé de la même manière entre ce carter d'engrenage et le bâti (2) de la machine que le premier mécanisme à bielles (11) destiné au cylindre mobile (5), mais il prend appui indépendamment de ce premier mécanisme à bielles.
  3. Broyeur à cylindres selon la revendication 1, caractérisé en ce que le dispositif d'appui des couples de rotation qui est destiné au carter d'engrenage du cylindre (6) monté en position fixe est formé essentiellement d'un prolongement en forme de bras de levier de ce carter d'engrenage, qui prend appui sur le bâti (2) de la machine - de préférence par articulation.
  4. Broyeur à cylindres selon la revendication 1, caractérisé en ce que chaque carter d'engrenage (9a, 10a) relié à un mécanisme à bielles (11, 12) comprend un premier prolongement orienté vers le haut (9b) qui lui est assujetti et qui est en forme d'un bras de levier, ainsi qu'un deuxième prolongement orienté vers le bas (9c), qui lui est assujetti et qui est en forme de bras de levier, les deux lieux d'articulation (20, 21) du carter d'engrenage étant usinés dans les extrémités libres, tournées d'une part vers le haut et d'autre part vers le bas, des deux prolongements, de préférence de manière qu'ils soient à peu près diamétralement opposés.
  5. Broyeur à cylindres selon la revendication 4, caractérisé en ce que chaque mécanisme à bielles (11, 12) est disposé sur un côté extérieur long du bâti (2) de la machine et comprend, en plus des deux leviers (13, 14, 13', 14') et de l'élément de couplage (17, 17'), deux barres sensiblement rigides d'assemblage (18, 19), dont la première barre supérieure d'assemblage (18) est située à proximité d'une membrure supérieure (3) du bâti (2) de la machine et est reliée par articulation d'une part au premier bras de levier (13a), orienté vers le haut, du premier levier supérieur (13) ainsi que d'autre part au premier lieu supérieur d'articulation (20) du carter correspondant d'engrenage (9a), tandis que la deuxième barre inférieure d'assemblage (19) est située à proximité d'une membrure inférieure (4) du bâti (2) de la machine et est reliée par articulation d'une part au premier bras de levier (14a), tourné vers le bas, du deuxième levier inférieur (14) ainsi que d'autre part au deuxième lieu inférieur d'articulation (21) de ce carter d'engrenage (9a).
  6. Broyeur à cylindres selon la revendication 5, caractérisé en ce que les deux leviers (13, 14, 13', 14') de chaque mécanisme à bielles (11, 12) sont des leviers à bras inégaux, dont le premier bras (13a, 14a) tourné d'une part vers le haut et d'autre part vers le bas et relié aux barres d'assemblage (18, 19) est plus court que les deuxièmes bras (13b, 14b) tournés l'un vers l'autre, qui sont reliés l'un à l'autre par l'élément de couplage (17).
  7. Broyeur à cylindres selon la revendication 1, caractérisé en ce que, dans chaque mécanisme à bielles (11, 12), la longueur et la disposition des deuxième bras de leviers (13b, 14b) des deux leviers (13, 14) ainsi que la longueur de l'élément de couplage (17) sont adoptés de manière que l'élément de couplage soit soumis de manière prépondérante à des forces horizontales de traction.
  8. Broyeur à cylindres selon la revendication 7, caractérisé en ce que les axes fixes de rotation (15, 16, 15', 16') de chaque mécanisme à bielles (11, 12) sont à une distance horizontale (HA) telle l'un par rapport à l'autre - en observation en vue en plan - que les assemblages par articulation des deuxièmes bras de levier (13b, 14b) des deux leviers (13, 14, 13', 14'), qui sont tournés l'un vers l'autre, avec l'élément de couplage (17, 17') sont à recouvrement au moins lorsque ces leviers sont à la position verticale et à une position à peu près verticale.
  9. Broyeur à cylindres selon la revendication 1, caractérisé en ce que chaque élément de couplage (17, 17') est réalisé à peu près à la forme d'une plaquette rigide d'assemblage.
  10. Broyeur à cylindres selon la revendication 9, caractérisé en ce que tous les assemblages à articulation des mécanismes à bielles (11, 12) sont réalisés à peu près à la forme d'accouplement à plaquettes de type à crabots et à coussinets.
  11. Broyeur à cylindres selon la revendication 1, caractérisé en ce qu'une traverse (22, 23, 24, 25) fixée à peu près sur les côtés extrêmes au bâti (2) de la machine est prévue pour chaque axe fixe de rotation (15, 16, 15', 16') des leviers (13, 14, 13', 14') des mécanismes à bielles, la traverse (22, 24) de l'axe (15, 15') de rotation du premier levier supérieur (13, 13') de chaque mécanisme à bielles (11, 12) est fixée dans la région de la membrure supérieure (3) et la traverse (23, 25) de l'axe (16, 16') de rotation du deuxième levier inférieur (14, 14') est fixée dans la région d'une membrure inférieure (4) du bâti (2) de la machine.
EP94119972A 1994-02-14 1994-12-16 Broyeur à rouleaux Expired - Lifetime EP0667186B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4404634A DE4404634A1 (de) 1994-02-14 1994-02-14 Walzenmühle
DE4404634 1994-02-14

Publications (2)

Publication Number Publication Date
EP0667186A1 EP0667186A1 (fr) 1995-08-16
EP0667186B1 true EP0667186B1 (fr) 1998-07-01

Family

ID=6510199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119972A Expired - Lifetime EP0667186B1 (fr) 1994-02-14 1994-12-16 Broyeur à rouleaux

Country Status (4)

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US (1) US5553796A (fr)
EP (1) EP0667186B1 (fr)
DE (2) DE4404634A1 (fr)
ES (1) ES2117754T3 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19805137A1 (de) * 1998-02-09 1999-08-12 Krupp Polysius Ag Walzenmühle
DE102005006090A1 (de) * 2005-02-10 2006-08-24 Khd Humboldt Wedag Gmbh Zweiwalzenmaschine insbesondere zur Gutbettzerkleinerung
DE102010024231B4 (de) * 2010-06-18 2015-02-12 Khd Humboldt Wedag Gmbh Rollenpresse mit Momentenwaage
US8695907B2 (en) 2012-04-20 2014-04-15 Metso Minerals Industries, Inc. Roller crusher with cheek plates
US8708265B2 (en) 2012-04-20 2014-04-29 Metso Minerals Industries, Inc. Roller crusher with balancing cylinders
WO2014189919A1 (fr) * 2013-05-20 2014-11-27 Flsmidth A/S Presse à rouleau et bâti associé
CN103721783B (zh) * 2014-01-10 2016-03-23 中信重工机械股份有限公司 一种无壳体式对辊挤压机
WO2016048814A1 (fr) * 2014-09-25 2016-03-31 Flsmidth A/S Dispositif de fixation mobile pour presses à rouleaux et procédé pour retirer certaines parties de celui-ci
DE102015205713A1 (de) * 2015-03-30 2016-10-06 Takraf Gmbh Radialrahmen zur Aufnahme von radialen Mahlkräften
CA3014904A1 (fr) * 2015-11-24 2017-06-01 Flsmidth A/S Systeme et procede d'enlevement d'un entrainement de presse a rouleaux
DE102015223694A1 (de) * 2015-11-30 2017-06-01 Takraf Gmbh Getriebehalter für eine Rollenpresse und Verfahren zum Ausbau des Getriebes einer Rollenpresse
GB2545224B (en) * 2015-12-09 2018-08-01 Terex Gb Ltd Material processing apparatus with rotor control system
CN105689049B (zh) * 2016-04-15 2017-12-12 高洪福 肥料结块松散机
ES2831032T3 (es) * 2018-03-08 2021-06-07 Flender Gmbh Dispositivo de soporte para un par de giro de engranajes y aplicación industrial
DE102020103823B3 (de) * 2020-02-13 2021-01-21 Matthews International GmbH Drehmomentstütze zum Abfangen von Antriebsmomenten und Walzenanordnung mit einer Drehmomentstütze
CN113649112B (zh) * 2021-08-12 2022-10-04 龙泉市金宏瓷业有限公司 一种陶瓷生产用原料破碎装置及其使用方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE887443C (de) * 1943-10-14 1953-08-24 Asea Ab Anordnung von Antriebsaggregaten, die auf der Welle der angetriebenen Maschine aufgehaengt sind
DE3707015A1 (de) * 1987-03-05 1988-09-15 Krupp Polysius Ag Walzenmuehle
DE3901060A1 (de) * 1989-01-16 1990-07-19 Kloeckner Humboldt Deutz Ag Zweiwalzenmaschine, insbesondere walzenbrecher
DE4019363C1 (en) * 1990-06-18 1991-08-14 A. Friedr. Flender Ag, 4290 Bocholt, De Roller drive for press - has torque supports connected directly on defined load lines
DE4024109A1 (de) * 1990-07-30 1992-02-06 Kloeckner Humboldt Deutz Ag Zweiwalzenmaschine, insbesondere rollenpresse
US5060874A (en) * 1990-08-16 1991-10-29 Mclanahan Corporation Crusher
DE9217285U1 (de) * 1992-12-17 1993-03-25 A. Friedr. Flender AG, 4290 Bocholt Drehmomentstütze

Also Published As

Publication number Publication date
EP0667186A1 (fr) 1995-08-16
US5553796A (en) 1996-09-10
ES2117754T3 (es) 1998-08-16
DE4404634A1 (de) 1995-08-17
DE59406370D1 (de) 1998-08-06

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