EP0775525B1 - Torque absorbing mechanism - Google Patents

Torque absorbing mechanism Download PDF

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Publication number
EP0775525B1
EP0775525B1 EP96116399A EP96116399A EP0775525B1 EP 0775525 B1 EP0775525 B1 EP 0775525B1 EP 96116399 A EP96116399 A EP 96116399A EP 96116399 A EP96116399 A EP 96116399A EP 0775525 B1 EP0775525 B1 EP 0775525B1
Authority
EP
European Patent Office
Prior art keywords
rollers
torque support
support means
torque
roller
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
EP96116399A
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German (de)
French (fr)
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EP0775525A1 (en
Inventor
Gil-Hwan Chun
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.)
A Friedrich Flender AG
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A Friedrich Flender AG
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Publication date
Application filed by A Friedrich Flender AG filed Critical A Friedrich Flender AG
Publication of EP0775525A1 publication Critical patent/EP0775525A1/en
Application granted granted Critical
Publication of EP0775525B1 publication Critical patent/EP0775525B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/28Details
    • B02C4/42Driving mechanisms; Roller speed control
    • B02C4/426Torque counterbalancing mechanisms

Definitions

  • the invention relates to a torque support for two oppositely driven rollers with the characteristics of The preamble of claim 1.
  • the torque support serves the reaction moments of the two slip gear on the torque arms and the Short coupling rods in themselves. In this way if the drive torque is the same, none additional forces from the torque on the gearbox mounting as well as the roller bearings. With different Torques for the rollers only occur in the Magnitude of the difference in drive torque for the Bearings on.
  • Torque supports for two counter-rotating rollers known in which the torque arms in via coupling rods Articulation points with a traverse or with two torsion shafts are connected. Due to the continuous traverse and both torsion waves aligned with each other are all Articulation points on one side by the axes of the rollers arranged median plane. In operation, too this torque supports the one coupling rods under tension and the others under pressure.
  • the invention has for its object the generic To design torque support so that it is strong is claimed cheaper.
  • Two horizontally arranged rollers 1, 2 are part of one Roller mill for crushing regrind.
  • the rollers 1, 2 are spaced from each other so that a between them Roll gap is formed in which the material to be shredded is abandoned above.
  • To change the width of the Roll gap and to compensate for the wear of the Roll surface is one of the roller 1 fixed and the other roller 2 is not slidable in relation to the fixed roller 1 machine frame shown stored.
  • the directions of rotation of the Rollers 1, 2 are, as in the drawing by arrows 3, 4 is indicated, set so that one after in the roll gap downward feed direction is formed.
  • the two rollers 1, 2 each carry on the same roller side a roll neck 5, 6, on which a gear 7, 8 is attached is.
  • the gears 7, 8 are preferably as Planetary hollow shaft gear designed.
  • each transmission 7, 8 With the housing of each transmission 7, 8 are fixed two Torque supports 9 - 12 connected, which are the same in pairs.
  • a short torque arm 9, 10 is on the outside of the Gear 7, 8 attached while the other, longer Torque support 11, 12 the other roller 1, 2 as far engages that it is above the short torque arm 9, 10 is located.
  • the short torque arm 9, 10 of one Gear 7, 8 is with the longer torque arm 11, 12 of the other gear 7, 8 articulated via one in the articulation points 13 - 16 engaging coupling rod 17, 18 connected.
  • the Coupling rods 17, 18 are designed as double levers. Thinks one plane through the longitudinal axes of the rollers 1, 2 placed, so all articulation points 13 - 16 on one and are located on the same side of this central plane 19.
  • the torque support can also be used for oppositely driven Rollers 1, 2 are used which are not arranged horizontally. are. In these cases too, coupling rods 17, 18 occur only pulling forces on.

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

Description

Die Erfindung betrifft eine Drehmomentabstützung für zwei gegenläufig angetriebene Walzen mit den Merkmalen des Oberbegriffes des Anspruches 1.The invention relates to a torque support for two oppositely driven rollers with the characteristics of The preamble of claim 1.

Die Drehmomentabstützung dient dazu, die Reaktionsmomente der beiden Aufsteckgetriebe über die Drehmomentstützen und die Koppelstangen in sich kurz zu schließen. Auf diese Weise treten, sofern die Antriebsmomente gleich groß sind, keine zusätzlichen Kräfte aus dem Drehmoment auf die Getriebelagerung sowie die Walzenlagerung auf. Bei unterschiedlichen Drehmomenten für die Walzen treten Kräfte lediglich in der Größenordnung der Differenz der Antriebsmomente für die Lagerungen auf.The torque support serves the reaction moments of the two slip gear on the torque arms and the Short coupling rods in themselves. In this way if the drive torque is the same, none additional forces from the torque on the gearbox mounting as well as the roller bearings. With different Torques for the rollers only occur in the Magnitude of the difference in drive torque for the Bearings on.

Bei einer bekannten Drehmomentabstützung (DE-PS 40 19 363) sind die Drehmomentstützen sowie die Koppelstangen gleich ausgebildet. Die Koppelstangen verbinden die Drehmomentstützen unmittelbar. Dabei befinden sich die Anlenkpunkte einer der Koppelstangen mit den Drehmomentstützen auf der einen Seite der Verbindungslinie der Drehpunkte der Walzen und die Anlenkpunkte der anderen Koppelstange auf der anderen Seite der Verbindungslinie. Diese Drehmomentabstützung ist einfach gestaltet, verursacht keine oder nur minimale Zusatzkräfte und benötigt wenig Platz. Unter Belastung wird jedoch eine der Koppelstangen auf Zug beansprucht, während die andere Koppelstange aufgrund der konstruktiven Gestaltung auf Druck beansprucht wird. Ein auf Zug beanspruchtes Bauteil ist eindeutig zu dimensionieren, während bei einem auf Druck beanspruchten Bauteil zusätzlich ein mögliches Ausknicken berücksichtigt werden muß. In a known torque support (DE-PS 40 19 363) the torque arms and the coupling rods are the same educated. The coupling rods connect the torque arms right away. The articulation points are one of the Coupling rods with the torque arms on one side of the Line connecting the pivot points of the rollers and the articulation points the other coupling rod on the other side of the Connecting line. This torque support is simple designed, causes no or minimal additional forces and takes up little space. Under stress, however, one of the Coupling rods stressed while the other Coupling rod due to the constructive design on pressure is claimed. A component that is under tension clearly dimensioned while at a pressure stressed component additionally a possible buckling must be taken into account.

Aus der DE-U-8 712 742 und der EP-A-0 469 376 sind Drehmomentabstützungen für zwei gegenläufig angetriebene Walzen bekannt, bei denen die Drehmomentstützen über Koppelstangen in Anlenkpunkten mit einer Traverse oder mit zwei Torsionswellen verbunden sind. Bedingt durch die durchgehende Traverse und die beiden mit einander fluchtenden Torsionswellen sind alle Anlenkpunkte auf einer Seite der durch die Achsen der Walzen verlaufenden Mittelebene angeordnet. Im Betrieb werden auch bei diesen Drehmomentabstützungen jeweils die einen Koppelstangen auf Zug und die anderen auf Druck beansprucht. From DE-U-8 712 742 and EP-A-0 469 376 Torque supports for two counter-rotating rollers known in which the torque arms in via coupling rods Articulation points with a traverse or with two torsion shafts are connected. Due to the continuous traverse and both torsion waves aligned with each other are all Articulation points on one side by the axes of the rollers arranged median plane. In operation, too this torque supports the one coupling rods under tension and the others under pressure.

Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Drehmomentabstützung derart zu gestalten, daß sie kräftemäßig günstiger beansprucht wird.The invention has for its object the generic To design torque support so that it is strong is claimed cheaper.

Diese Aufgabe wird bei einer gattungsgemäßen Drehmomentabstützung erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche.This task is done with a generic Torque support according to the invention by the characteristic Features of claim 1 solved. Advantageous configurations are the subject of the subclaims.

Aufgrund der Anordnung aller Anlenkpunkte auf ein und derselben Seite der Mittelebene werden beiden Koppelstangen in erwünschter Weise auf Zug beansprucht und sind damit eindeutig zu dimensionieren. Außerdem kann der Raum auf der der Abstützung abgewandten Seite der Getriebe in vorteilhafter Weise für die notwendige Unterbringung von Zusatzeinrichtungen genutzt werden, oder die gesamte Anlage kann kleiner ausgeführt werden. Darüber hinaus kann die Forderung eingehalten werden, den Abstand zwischen den Walzen so gering wie möglich zu halten und in beschränktem Maße nach beiden Seiten variabel einzustellen.Due to the arrangement of all articulation points on one and the same Side of the middle plane are two coupling rods in desirably claimed on train and are therefore clear to dimension. In addition, the room on which the Support opposite side of the transmission in an advantageous Way for the necessary accommodation of additional facilities can be used, or the entire system can be made smaller become. In addition, the requirement can be met keep the distance between the rollers as small as possible and variable to a limited extent on both sides adjust.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Die Zeichnung zeigt die Seitenansicht auf zwei Walzen mit einer Drehmomentabstützung.An embodiment of the invention is in the drawing shown and is explained in more detail below. The Drawing shows the side view on two rollers with one Torque support.

Zwei waagerecht angeordnete Walzen 1, 2 sind Bestandteil einer Walzenmühle zur Zerkleinerung von Mahlgut. Die Walzen 1, 2 sind mit Abstand voneinander angeordnet, so daß zwischen ihnen ein Walzspalt gebildet ist, in den das zu zerkleinernde Gut von oben aufgegeben wird. Zur Veränderung der Breite des Walzspaltes und zum Ausgleich des Verschleißes der Walzenoberfläche ist eine der Walze 1 fest und die andere Walze 2 ist gegenüber der festen Walze 1 verschiebbar in einem nicht gezeigten Maschinenrahmen gelagert. Die Drehrichtungen der Walzen 1, 2 sind, wie in der Zeichnung durch Pfeile 3, 4 angedeutet ist, so eingestellt, daß in dem Walzspalt eine nach unten weisende Einzugsrichtung gebildet ist.Two horizontally arranged rollers 1, 2 are part of one Roller mill for crushing regrind. The rollers 1, 2 are spaced from each other so that a between them Roll gap is formed in which the material to be shredded is abandoned above. To change the width of the Roll gap and to compensate for the wear of the Roll surface is one of the roller 1 fixed and the other roller 2 is not slidable in relation to the fixed roller 1 machine frame shown stored. The directions of rotation of the Rollers 1, 2 are, as in the drawing by arrows 3, 4 is indicated, set so that one after in the roll gap downward feed direction is formed.

Auf der gleichen Walzenseite tragen die beiden Walzen 1, 2 je einem Walzenzapfen 5, 6, auf den ein Getriebe 7, 8 aufgesteckt ist. Die Getriebe 7, 8 sind vorzugsweise als Planeten-Hohlwellen-Getriebe ausgebildet.The two rollers 1, 2 each carry on the same roller side a roll neck 5, 6, on which a gear 7, 8 is attached is. The gears 7, 8 are preferably as Planetary hollow shaft gear designed.

Mit dem Gehäuse eines jeden Getriebes 7, 8 sind fest zwei Drehmomentstützen 9 - 12 verbunden, die paarweise gleich sind. Eine kurze Drehmomentstütze 9, 10 ist auf der Außenseite der Getriebe 7, 8 angebracht, während die andere, längere Drehmomentstütze 11, 12 die jeweils andere Walze 1, 2 soweit übergreift, daß sie sich oberhalb der kurzen Drehmomentstütze 9, 10 befindet. Die kurze Drehmomentstütze 9, 10 des einen Getriebes 7, 8 ist mit der längeren Drehmomentstütze 11, 12 des anderen Getriebes 7, 8 gelenkig über eine in den Anlenkpunkten 13 - 16 angreifende Koppelstange 17, 18 verbunden. Die Koppelstangen 17, 18 sind als Doppelhebel ausgebildet. Denkt man sich eine Ebene durch die Längsachsen der Walzen 1, 2 gelegt, so sollen sich alle Anlenkpunkte 13 - 16 auf ein und derselben Seite dieser Mittelebene 19 befinden. Dabei können die Anlenkpunkte 13, 14 in den kurzen Drehmomentstützen 9, 10 im Bereich der Mittelebene 19 angeordnet sein. Damit sind die Drehmomentstützen 9 - 12 zusammen mit den Koppelstangen 17, 18 nach ein und derselben Seite der Getriebe 7, 8 ausgerichtet. Sind die Walzen 1, 2 waagerecht angeordnet, so sollen die Anlenkpunkte 13, 14 im Bereich der Mittelebene 19 und die Anlenkpunkte 15, 16 oberhalb der Mittelebene 19 liegen.With the housing of each transmission 7, 8 are fixed two Torque supports 9 - 12 connected, which are the same in pairs. A short torque arm 9, 10 is on the outside of the Gear 7, 8 attached while the other, longer Torque support 11, 12 the other roller 1, 2 as far engages that it is above the short torque arm 9, 10 is located. The short torque arm 9, 10 of one Gear 7, 8 is with the longer torque arm 11, 12 of the other gear 7, 8 articulated via one in the articulation points 13 - 16 engaging coupling rod 17, 18 connected. The Coupling rods 17, 18 are designed as double levers. Thinks one plane through the longitudinal axes of the rollers 1, 2 placed, so all articulation points 13 - 16 on one and are located on the same side of this central plane 19. You can the articulation points 13, 14 in the short torque arms 9, 10 be arranged in the region of the central plane 19. With that they are Torque supports 9 - 12 together with the coupling rods 17, 18 aligned on one and the same side of the gear 7, 8. If the rollers 1, 2 are arranged horizontally, then the Articulation points 13, 14 in the area of the central plane 19 and Articulation points 15, 16 lie above the central plane 19.

Wird im Betrieb ein Reaktionsmoment über die Drehmomentabstützung von einem Getriebe 7, 8 auf das andere übertragen, so werden die Anlenkpunkte 15, 16 in den längeren Drehmomentstützen 11, 12 in Richtung der Pfeile 20, 21 ausweichen. Diese Bewegung erzeugt aufgrund der Anordnung der Drehmomentabstützung nach einer Seite in den beiden Koppelstangen 17, 18 ausschließlich eine Zugkraft. Die einseitige Anordnung der Drehmomentabstützung läßt außerdem unterhalb der Mittelebene 19 Platz für den Einbau von Zusatzeinrichtungen auf dem Maschinenrahmen, oder die gesamte Anlage kann kleiner ausgeführt werden.If a reaction torque is exceeded during operation Torque support from one transmission 7, 8 to the other transferred, the pivot points 15, 16 in the longer Torque supports 11, 12 in the direction of arrows 20, 21 dodge. This movement creates due to the arrangement of the Torque support to one side in the two Coupling rods 17, 18 exclusively have a pulling force. The one-sided arrangement of the torque support also leaves below the middle level 19 space for the installation of Additional equipment on the machine frame, or the whole System can be made smaller.

Die Drehmomentabstützung kann auch für gegenläufig angetriebene Walzen 1, 2 verwendet werden, die nicht waagerecht angeordnet. sind. Auch in diesen Fällen treten in den Koppelstangen 17, 18 nur Zugkräfte auf.The torque support can also be used for oppositely driven Rollers 1, 2 are used which are not arranged horizontally. are. In these cases too, coupling rods 17, 18 occur only pulling forces on.

Claims (3)

  1. Torque support means for two rollers (1, 2) which are driven in opposite sense and of which one is arranged fixedly, and the other displaceably relative to the fixed roller (1), in a machine frame, wherein the rollers (1, 2) are provided at the same roller end with a respective roller pin (5, 6) onto which a gear (7, 8) is plugged, and wherein torque support means (9 to 19) are fixedly connected with the gears (7, 8) and are pivotably interconnected at in each instance at two respective pivot points (13 to 16) by coupling rods (17, 18), characterised in that the torque support means (9 to 12) associated with one of the rollers (12) extends so far over the respective other roller that it is disposed above the torque support means (9 to 12) associated with this other roller (1, 2) so that all pivot points (13 to 16) of the coupling rods (17, 18) are arranged on one side of a centre plane (19) extending through the axes of the rollers (1, 2).
  2. Torque support means according to claim 1, characterised in that a respective pivot point (13, 14) associated with each coupling rod (17, 18) lies in the region of the centre plane (19).
  3. Torque support means according to claims 1 and 2, characterised in that in the case of horizontally disposed rollers (1, 2) the directions of rotation thereof are so oriented that a roll gap with a downwardly facing intake direction is formed between the rollers (1, 2) and that the pivot points (13 to 16) are arranged above the centre plane (19).
EP96116399A 1995-11-21 1996-10-12 Torque absorbing mechanism Expired - Lifetime EP0775525B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19543364 1995-11-21
DE19543364A DE19543364A1 (en) 1995-11-21 1995-11-21 Torque support

Publications (2)

Publication Number Publication Date
EP0775525A1 EP0775525A1 (en) 1997-05-28
EP0775525B1 true EP0775525B1 (en) 2001-12-12

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ID=7778010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96116399A Expired - Lifetime EP0775525B1 (en) 1995-11-21 1996-10-12 Torque absorbing mechanism

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US (1) US5779126A (en)
EP (1) EP0775525B1 (en)
DE (2) DE19543364A1 (en)
DK (1) DK0775525T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007059073A1 (en) * 2007-12-07 2009-06-10 Khd Humboldt Wedag Gmbh Roller press with symmetrical roller centering
US8878097B2 (en) * 2008-08-18 2014-11-04 Lincoln Global, Inc. Wire feeder with curved force generating element(s) for better positioning of an adjusting mechanism
US8662431B2 (en) * 2012-04-20 2014-03-04 Metso Minerals (Sweden) Ab Centering rolls
DE102015013670A1 (en) 2014-11-10 2016-05-12 Sew-Eurodrive Gmbh & Co Kg drive arrangement
ES2831032T3 (en) 2018-03-08 2021-06-07 Flender Gmbh Support device for gear turning torque and industrial application
EP3736045A1 (en) 2019-05-10 2020-11-11 Flender GmbH Support device for two transmissions and device with such a support device
SE543582C2 (en) * 2019-06-25 2021-04-06 Valmet Oy A torque reaction arrangement for pulp washers and a pulp washer including the arrangement

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Publication number Priority date Publication date Assignee Title
US3317104A (en) * 1965-05-05 1967-05-02 Gen Electric Tape indexing arrangement
US3447730A (en) * 1966-04-15 1969-06-03 Air Reduction Wire feed apparatus
US3328851A (en) * 1966-08-19 1967-07-04 Ideal Ind Calendering mechanism
US3715068A (en) * 1970-08-28 1973-02-06 Post Office Apparatus for the laying or recovery of cables
BG23280A1 (en) * 1975-09-24 1977-08-10
DE3639803A1 (en) * 1986-11-21 1988-05-26 Kloeckner Humboldt Deutz Ag Two-roller machine, in particular roller press having two rotatably mounted, contra-rotating rollers
DE3707015A1 (en) * 1987-03-05 1988-09-15 Krupp Polysius Ag ROLL MILL
DE8712742U1 (en) * 1987-09-22 1987-11-05 Grachtrup, Heinz, Dipl.-Ing., 4722 Ennigerloh, De
DE3901060A1 (en) * 1989-01-16 1990-07-19 Kloeckner Humboldt Deutz Ag TWO-ROLLING MACHINE, IN PARTICULAR ROLLER CRUSHERS
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 (en) * 1990-07-30 1992-02-06 Kloeckner Humboldt Deutz Ag TWO-ROLLING MACHINE, IN PARTICULAR ROLL PRESS
GB2252517A (en) * 1991-02-07 1992-08-12 Smidth & Co As F L Roller press with torque counter balancing

Also Published As

Publication number Publication date
DE59608436D1 (en) 2002-01-24
US5779126A (en) 1998-07-14
EP0775525A1 (en) 1997-05-28
DK0775525T3 (en) 2002-04-02
DE19543364A1 (en) 1997-05-22

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