EP0208803B1 - Rolling mill drive - Google Patents

Rolling mill drive Download PDF

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Publication number
EP0208803B1
EP0208803B1 EP85108991A EP85108991A EP0208803B1 EP 0208803 B1 EP0208803 B1 EP 0208803B1 EP 85108991 A EP85108991 A EP 85108991A EP 85108991 A EP85108991 A EP 85108991A EP 0208803 B1 EP0208803 B1 EP 0208803B1
Authority
EP
European Patent Office
Prior art keywords
gear
roll
shafts
drive shafts
driving
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
Application number
EP85108991A
Other languages
German (de)
French (fr)
Other versions
EP0208803A1 (en
Inventor
Elmar Dr. Buch
Jürgen Greff
Rene Marzinkewitsch
Herbert Vogelgesang
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.)
Vodafone GmbH
Original Assignee
Fried Krupp AG
Mannesmann 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 Fried Krupp AG, Mannesmann AG filed Critical Fried Krupp AG
Priority to EP85108991A priority Critical patent/EP0208803B1/en
Priority to AT85108991T priority patent/ATE48097T1/en
Priority to DE8585108991T priority patent/DE3574346D1/en
Priority to ES556232A priority patent/ES8706487A1/en
Priority to US06/886,530 priority patent/US4807458A/en
Priority to JP61166877A priority patent/JPS6221409A/en
Publication of EP0208803A1 publication Critical patent/EP0208803A1/en
Application granted granted Critical
Publication of EP0208803B1 publication Critical patent/EP0208803B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/12—Toothed-wheel gearings specially adapted for metal-rolling mills; Housings or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19074—Single drive plural driven
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19074—Single drive plural driven
    • Y10T74/19079—Parallel
    • Y10T74/19084—Spur

Definitions

  • the invention relates to a rolling block, in particular for finish rolling in high-speed wire-rolling mills, with a plurality of rolling units arranged one behind the other, alternately offset at right angles to one another, which are driven by two drive shafts running parallel to the rolling line on both sides, and with an upstream transfer case for driving the two drive shafts of one common drive motor with adjustable speed of the drive shafts.
  • the individual rolling units are driven by bevel gear drives or connections having a similar effect from the drive shafts.
  • the gear ratios correspond to the target speeds that result for the relevant rolling units from the caliber acceptance series that is decisive for the respective material qualities or the rolled product to be produced.
  • a certain speed ratio of the two drive shafts to one another is derived from this, to which these ratios are matched. If other materials are to be rolled or other rolled products are to be produced, the bevel gear and the speed ratio of the two drive shafts can remain unchanged. However, the speeds of the drive shafts have to be changed in accordance with the different operating requirements. Modified transfer cases must therefore be installed.
  • DE-A 2 446 905 already discloses the use of a controllable DC motor for changing the speed of the drive shafts.
  • the two drive shafts should each be driven at the same speed as one another. It is an object of the present invention to save the different transfer cases and their installation, also to avoid the use of a controllable direct current motor for mutually equal drive shaft speeds and rather to create a rolling block which is suitable for different rolling conditions and can be adapted to them by simply switching over.
  • the transfer case as a manual transmission for generating different speeds of the two drive shafts with the same speed ratio of the two drive shafts to one another
  • the manual transmission as a mechanical transmission with one input shaft and two drive shafts leading to the drive shafts and two over engaging and disengaging clutches is alternately operable gear arrangements and that two gears meshing with two gears arranged on the output shafts are arranged on the input shaft and that the gears assigned to one gear arrangement on the output shafts and the gear assigned to the other gear arrangement on the input shaft and one of the two gears meshing with it can be engaged and disengaged on an output shaft by means of a clutch.
  • the gearbox as a mechanical gearbox with an input shaft and two output shafts leading to the drive shafts and two gearwheel arrangements that can be operated alternately via engaging and disengaging clutches, two different drive shaft speeds are already achieved, i.e. the prerequisites for processing normal and stainless steel.
  • each of the two drive shafts of the transfer case driving the drive shafts is assigned a preferably hydraulic control gear.
  • this version enables the roller block to be operated with a large number of take-off rows.
  • an input shaft 1 driven by a motor, not shown, is equipped with two gear wheels 2 and 3.
  • the gear 3 is fixedly connected to the input shaft 1 via a feather key 4.
  • the gearwheel 2 is connected in a rotationally fixed manner to the input shaft 1 by means of a clutch 5.
  • the rotary connection can be released by disengaging the clutch 5 in the dot-dash position.
  • the two gears 2 and 3 are in engagement with gears 8 and 9, which are wedged onto intermediate shafts 6 and 7, which in turn have both gears on intermediate shafts 10 and Comb 11 splined gears 12 and 13 as well as gears 14 and 15 on an output shaft 16.
  • Both gears 14 and 15 are detachably connected to the output shaft 16 via a respective clutch 17 and 18.
  • Gears 19 and 20 on an output shaft 21 mesh with the gears 12 and 13.
  • the gear 19 is firmly wedged thereon.
  • the gear 20 is releasably connected to it via a clutch 22.
  • the two drive shafts (not shown) of the roll block which are connected to the output shafts 16 and 21, are driven from the input shaft 1 via the gearwheel arrangement 2, 8, 14, 12 and 19.
  • the clutch clutches 17 are engaged and the clutch clutches 18 and 22 disengaged.
  • the output shaft 18 receives a speed n u i, the output shaft 22 a speed n o i.
  • the resulting speeds of the individual roll lead, for example, to caliber reductions of 20 to 22% for the rolling of normal steel.
  • the motor drives an input shaft 23, which is equipped with two gears 24 and 25.
  • the gear 25 is wedged, the gear 24 releasable via a clutch 26.
  • the gear 24 meshes with the gears 27 and 29, the gear 25 with the gears 28 and 30 on the output shafts 31 and 32.
  • the gears 27, 28 and 30 can be engaged and disengaged by clutches 33, 34 and 35.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Wire Bonding (AREA)
  • Ropes Or Cables (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Structure Of Transmissions (AREA)
  • Gear Transmission (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

A roll block for rolling wire to final gauge in a high speed wire mill with a plurality of roll units alternatingly positioned at right angles to each other and behind each other, which are driven by two roll drive shafts running on both sides of the line of rolls parallel to it, includes a dividing gear unit for driving both drive shafts by a common drive motor. The individual roll units are connected to the roll drive shafts by miter wheel, bevel and/or other gear units. The gear ratios in the dividing gear unit on setting predetermined rotational speed ratios of the roll drive shafts lead to a predetermined series of caliber reductions for which the respective roll block is designed. Other materials and/or roll products require, if the gear ratios and rotational speeds are to be maintained constant, correspondingly changed dividing gear units. Such changes are no longer required when the dividing gear unit is a mechanical or hydraulic gearshift which produces different rotational speeds. A very fast and simple rotational speed change is allowed selectively by gear mechanisms operable by engaging and disengaging clutches between an input drive shaft, intermediate drive shafts and an output drive shaft.

Description

Die Erfindung bezieht sich auf einen Walzblock insbesondere zum Fertigwalzen in Hochgeschwindigkeits-Drahtwalzwerken mit mehreren hintereinanderliegenden, abwechselnd rechtwinklig zueinander versetzten Walzeinheiten, die durch zwei beiderseits der Walzlinie parallel zu dieser verlaufende Treibwellen angetrieben sind, und mit einem vorgeschalteten Verteilergetriebe zum Antrieb der beiden Treibwellen von einem gemeinsamen Antriebsmotor bei regelbarer Drehzahl der Treibwellen.The invention relates to a rolling block, in particular for finish rolling in high-speed wire-rolling mills, with a plurality of rolling units arranged one behind the other, alternately offset at right angles to one another, which are driven by two drive shafts running parallel to the rolling line on both sides, and with an upstream transfer case for driving the two drive shafts of one common drive motor with adjustable speed of the drive shafts.

Bei derartigen Walzblöcken erfolgt der Antrieb der einzelnen Walzeinheiten über Kegelradgetriebe oder ähnlich wirkende Anschlüsse von den Treibwellen her. Dabei entsprechen die Übersetzungen der Getriebe den Solldrehzahlen, die sich für die betreffenden Walzeinheiten aus der für die jeweiligen Werkstoffqualitäten bzw. das zu erzeugende Walzprodukt maßgebenden Kaliberabnahmereihe ergeben. Daraus leitet sich auch ein bestimmtes Drehzahlverhältnis der beiden Treibwellen zueinander ab, auf das diese Übersetzungen abgestimmt sind. Wenn andere Werkstoffe verwalzt bzw. andere Walzprodukte erzeugt werden sollen, können zwar die Kegelradgetriebe und das Drehzahlverhältnis der beiden Treibwellen unverändert bleiben. Die Drehzahlen der Treibwellen müssen jedoch den unterschiedlichen Betriebserfordernissen entsprechend verändert werden. Dazu sind daher geänderte Verteilergetriebe einzubauen. Aus der DE-A 2 446 905 ist bereits die Verwendung eines regelbaren Gleichstrommotors für eine Drehzahländerung der Treibwellen bekannt. Dabei sollen jedoch die beiden Treibwellen mit jeweils untereinander gleicher Drehzahl angetrieben werden. Es ist Aufgabe der vorliegenden Erfindung, die verschiedenen Verteilergetriebe und deren Einbau zu ersparen, auch den Einsatz eines regelbaren Gleichstrommotors für untereinander gleiche Treibwellendrehzahlen zu vermeiden und vielmehr einen Walzblock zu schaffen, der für unterschiedliche Walzverhältnisse geeignet und an diese durch einfaches Umschalten anzupassen ist.In such rolling blocks, the individual rolling units are driven by bevel gear drives or connections having a similar effect from the drive shafts. The gear ratios correspond to the target speeds that result for the relevant rolling units from the caliber acceptance series that is decisive for the respective material qualities or the rolled product to be produced. A certain speed ratio of the two drive shafts to one another is derived from this, to which these ratios are matched. If other materials are to be rolled or other rolled products are to be produced, the bevel gear and the speed ratio of the two drive shafts can remain unchanged. However, the speeds of the drive shafts have to be changed in accordance with the different operating requirements. Modified transfer cases must therefore be installed. DE-A 2 446 905 already discloses the use of a controllable DC motor for changing the speed of the drive shafts. However, the two drive shafts should each be driven at the same speed as one another. It is an object of the present invention to save the different transfer cases and their installation, also to avoid the use of a controllable direct current motor for mutually equal drive shaft speeds and rather to create a rolling block which is suitable for different rolling conditions and can be adapted to them by simply switching over.

Danach wird für einen Walzblock der eingangs genannten Art vorgeschlagen, daß das Verteilergetriebe als Schaltgetriebe zur Erzeugung verschiedener Drehzahlen der beiden Treibwellen bei gleichbleibendem Drehzahlverhältnis der beiden Treibwellen untereinander, daß das Schaltgetriebe als mechanisches Getriebe mit einer Eintriebswelle und zwei zu den Treibwellen führenden Austriebswellen sowie zwei über ein- und ausrückbare Schaltkupplungen wechselweise betreibbaren Zahnradanordnungen ausgebildet ist sowie daß auf der Eintriebswelle zwei mit je zwei auf den Austriebswellen angeordneten Zahnrädern kämmende Zahnräder angeordnet sind und daß die der einen Zahnradanordnung zugeordneten Zahnräder auf den Austriebswellen und das der anderen Zahnradanordnung zugeordnete Zahnrad auf der Eintriebswelle sowie eines der beiden mit diesem kämmenden Zahnräder auf einer Austriebswelle durch eine Schaltkupplung ein- und ausrückbar sind.Then it is proposed for a rolling block of the type mentioned that the transfer case as a manual transmission for generating different speeds of the two drive shafts with the same speed ratio of the two drive shafts to one another, that the manual transmission as a mechanical transmission with one input shaft and two drive shafts leading to the drive shafts and two over engaging and disengaging clutches is alternately operable gear arrangements and that two gears meshing with two gears arranged on the output shafts are arranged on the input shaft and that the gears assigned to one gear arrangement on the output shafts and the gear assigned to the other gear arrangement on the input shaft and one of the two gears meshing with it can be engaged and disengaged on an output shaft by means of a clutch.

Die Umschaltmöglichkeit auf verschiedene Treibwellendrehzahlen gewährleistet, daß ein und derselbe Walzblock ohne bauliche Veränderungen der Antriebsteile mit unterschiedlichen Kaliberabnahmereihen betrieben werden kann.The possibility of switching to different drive shaft speeds ensures that one and the same roll block can be operated with different caliber acceptance rows without structural changes to the drive parts.

Auf diese Weise ist es möglich, sowohl Normalstahl als auch Edelstahl mit diesem Walzblock zu verwalzen.In this way, it is possible to roll both normal steel and stainless steel with this roll block.

Dabei werden durch die Ausgestaltung des Schaltgetriebes als mechanisches Getriebe mit einer Eintriebswelle und zwei zu den Treibwellen führenden Austriebswellen sowie zwei über ein- und ausrückbare Schaltkupplungen wechselweise betreibbaren Zahnradanordnungen bereits zwei verschiedene Treibwellendrehzahlen erreicht, also die Voraussetzung für die Verarbeitung von Normal-und Edelstahl geschaffen.By designing the gearbox as a mechanical gearbox with an input shaft and two output shafts leading to the drive shafts and two gearwheel arrangements that can be operated alternately via engaging and disengaging clutches, two different drive shaft speeds are already achieved, i.e. the prerequisites for processing normal and stainless steel.

Ein solches mechanisches Getriebe, wie es sich aus der anspruchsgemäßen Gesamtgestaltung ergibt, ist recht einfach und übersichtlich aufgebaut sowie im Betrieb unempfindlich und wartungsarm.Such a mechanical transmission, as it results from the sophisticated overall design, is quite simple and clearly structured, and is insensitive to operation and requires little maintenance.

Je nach den zu erwartenden Betriebsverhältnissen kann das mechanische Getriebe auch durch eine andere Lösung ersetzt werden. Günstig wäre in diesem Fall, wenn jeder der beiden die Treibwellen antreibenden Antriebswellen des Verteilergetriebes ein vorzugsweise hydraulisches Regelgetriebe zugeordnet ist. Diese Ausführung ermöglicht je nach Aufbau des Regelgetriebes den Betrieb des Walzblockes mit einer Vielzahl von Abnahmereihen.Depending on the expected operating conditions, the mechanical gear can also be replaced by another solution. In this case, it would be advantageous if each of the two drive shafts of the transfer case driving the drive shafts is assigned a preferably hydraulic control gear. Depending on the design of the variable-speed gearbox, this version enables the roller block to be operated with a large number of take-off rows.

Statt der Verwendung zweier Regelgetriebe empfiehlt sich als zweckmäßig auch eine Anordnung, bei der der vom Antriebsmotor angetriebenen Eintriebswelle des Verteilergetriebes ein vorzugsweise hydraulisches Regelgetriebe zugeordnet ist. Auch diese Anordnung ist sehr einfach, erfordert zwar ggf. eine spezielle Hydraulikversorgung, bietet aber eine ausgezeichnete Anpassungsfähigkeit an wechselnde Betriebsbedingungen.Instead of using two control gears, it is also advisable to use an arrangement in which a preferably hydraulic control gear is assigned to the input shaft of the transfer case driven by the drive motor. This arrangement is also very simple, although it may require a special hydraulic supply, but offers excellent adaptability to changing operating conditions.

In der Zeichnung sind zwei Ausführungsbeispiele eines Verteilergetriebes für einen erfindungsgemäßen Walzblock dargestellt, und zwar in

  • Fig. 1 ein Schaltegetriebe mit Zwischenwellen in Seitenansicht, in
  • Fig. 2 dieses Schaltgetriebe im Schnitt nach der Linie 11-11 in Fig. 1 und in
  • Fig. 3 dieses Schaltgetriebe im Schnitt nach der Linie 111-111 in Fig. 1, in
  • Fig. 4 ein Schaltgetriebe mit unmittelbar kämmenden Zahnrädern auf der Ein- und den Austriebswellen im Schnitt.
The drawing shows two exemplary embodiments of a transfer case for a rolling block according to the invention, namely in
  • Fig. 1 is a gearbox with intermediate shafts in side view, in
  • Fig. 2 this manual transmission in section along the line 11-11 in Fig. 1 and in
  • Fig. 3 this manual transmission in section along the line 111-111 in Fig. 1, in
  • Fig. 4 is a manual transmission with directly meshing gears on the input and the output shafts on average.

Bei dem Schaltgetriebe nach den Fig. 1 bis 3 ist eine von einem nicht dargestellten Motor angetriebene Eintriebswelle 1 mit zwei Zahnrädern 2 und 3 bestückt. Das Zahnrad 3 ist über eine Paßfeder 4 fest mit der Eintriebswelle 1 verbunden. Das Zahnrad 2 ist durch eine Schaltkupplung 5 drehfest mit der Eintriebswelle 1 verbunden. Die Drehverbindung läßt sich durch Ausrücken der Schaltkupplung 5 in die strichpunktierte Lage lösen. Die beiden Zahnräder 2 und 3 stehen mit auf Zwischenwellen 6 und 7 aufgekeilten Zahnrädern 8 und 9 in Eingriff, die ihrerseits sowohl mit auf Zwischenwellen 10 und 11 aufgekeilten Zahnrädern 12 und 13 als auch mit Zahnrädern 14 und 15 auf einer Austriebswelle 16 kämmen. Beide Zahnräder 14 und 15 sind über je eine Schaltkupplung 17 und 18 lösbar mit der Austriebswelle 16 verbunden. Zahnräder 19 und 20 auf einer Austriebswelle 21 kämmen mit den Zahnrädern 12 und 13. Das Zahnrad 19 ist auf dieser fest aufgekeilt. Das Zahnrad 20 ist über eine Schaltkupplung 22 lösbar mit ihr verbunden.In the manual transmission according to FIGS. 1 to 3, an input shaft 1 driven by a motor, not shown, is equipped with two gear wheels 2 and 3. The gear 3 is fixedly connected to the input shaft 1 via a feather key 4. The gearwheel 2 is connected in a rotationally fixed manner to the input shaft 1 by means of a clutch 5. The rotary connection can be released by disengaging the clutch 5 in the dot-dash position. The two gears 2 and 3 are in engagement with gears 8 and 9, which are wedged onto intermediate shafts 6 and 7, which in turn have both gears on intermediate shafts 10 and Comb 11 splined gears 12 and 13 as well as gears 14 and 15 on an output shaft 16. Both gears 14 and 15 are detachably connected to the output shaft 16 via a respective clutch 17 and 18. Gears 19 and 20 on an output shaft 21 mesh with the gears 12 and 13. The gear 19 is firmly wedged thereon. The gear 20 is releasably connected to it via a clutch 22.

Bei eingerückter Schaltkupplung 5 erfolgt der Antrieb der beiden nicht dargestellten, sich an die Austriebswellen 16 und 21 anschließenden Treibwellen des Walzblocks von der Eintriebswelle 1 her über die Zahnradanordnung 2, 8, 14, 12 und 19. Dabei sind die Schaltkupplungen 17 eingerückt und die Schaltkupplungen 18 und 22 ausgerückt. Die Austriebswelle 18 erhält eine Drehzahl nui, die Austriebswelle 22 eine Drehzahl noi. Die daraus abgeleiteten Drehzahlen der einzelnen Walzgerüste führen beispielsweise zu Kaliberabnahmen von 20 bis 22 % für die Walzung von Normalstahl.When the clutch 5 is engaged, the two drive shafts (not shown) of the roll block, which are connected to the output shafts 16 and 21, are driven from the input shaft 1 via the gearwheel arrangement 2, 8, 14, 12 and 19. The clutch clutches 17 are engaged and the clutch clutches 18 and 22 disengaged. The output shaft 18 receives a speed n u i, the output shaft 22 a speed n o i. The resulting speeds of the individual roll stands lead, for example, to caliber reductions of 20 to 22% for the rolling of normal steel.

Bei ausgerückter Schaltkupplung 5 erfolgt der Antrieb der Treibwellen über die Zahnradanordnungen 3, 9, 15, 13 und 20. Dabei sind die Schaltkupplung 17 ausgerückt und die Schaltkupplungen 18 und 22 eingerückt. Die Austriebsweüe 18 erhält eine Drehzahl nu2, die Austriebswelle 22 eine Drehzahl no2. Die daraus abgeleiteten Drehzahlen der einzelnen Walzeinheiten führen bei gleichbleibendem Drehzahlverhältnis der beiden Treibwellen nui : noi = nu2 : no2 beispielsweise zu Kaliberabnahmen von 16 bis 18 % für die Walzung von Edelstahl.When the clutch 5 is disengaged, the drive shafts are driven by the gear arrangements 3, 9, 15, 13 and 20. The clutch 17 is disengaged and the clutches 18 and 22 engaged. The output shaft 18 receives a speed nu2, the output shaft 22 a speed no2. The resulting speeds of the individual rolling units, with the same speed ratio of the two drive shafts nui: n o i = nu2: n o2 , lead to caliber reductions of 16 to 18% for the rolling of stainless steel, for example.

Das Schaltgetriebe nach Fig. 4 ist entsprechend aufgebaut jedoch ohne die Verwendung von Zwischenwellen. Der Motor treibt eine Eintriebswelle 23, die mit zwei Zahnrädern 24 und 25 besetzt ist. Das Zahnrad 25 ist aufgekeilt, das Zahnrad 24 über eine Schaltkupplung 26 lösbar. Das Zahnrad 24 kämmt mit den Zahnrädern 27 und 29, das Zahnrad 25 mit den Zahnrädern 28 und 30 auf den Abtriebswellen 31 und 32. Die Zahnräder 27, 28 und 30 sind durch Schaltkupplungen 33, 34 und 35 ein- und ausrückbar.4 is constructed accordingly but without the use of intermediate shafts. The motor drives an input shaft 23, which is equipped with two gears 24 and 25. The gear 25 is wedged, the gear 24 releasable via a clutch 26. The gear 24 meshes with the gears 27 and 29, the gear 25 with the gears 28 and 30 on the output shafts 31 and 32. The gears 27, 28 and 30 can be engaged and disengaged by clutches 33, 34 and 35.

Bei eingerückter Schaltkupplung 26 erfolgt der Antrieb der Treibwellen über die Zahnradanordnung 24, 27 und 29, dabei sind die Schaltkupplung 33 eingerückt und die Schaltkupplungen 34 und 35 ausgerückt. Bei ausgerückter Schaltkupplung 26 erfolgt der Antrieb der Treibwellen über die Zahnradanordnung 25, 28 und 30. Dabei sind die Schaltkupplung 33 ausgerückt und die Schaltkupplungen 34 und 35 eingerückt.When the clutch 26 is engaged, the drive shafts are driven via the gear arrangement 24, 27 and 29, the clutch 33 being engaged and the clutches 34 and 35 disengaged. When the clutch 26 is disengaged, the drive shafts are driven via the gear arrangement 25, 28 and 30. The clutch 33 is disengaged and the clutches 34 and 35 are engaged.

Claims (3)

1. A rolling mill drive, more particularly for finish rolling in high speed wire rolling mills and having: a - number of rolling units which are disposed in series alternately offset at right angles to one another and are driven by two driving shafts extending on both sides of the rolling line parallel therewith; and a connected distributor gear for driving the two driving shafts from a common driving motor at a controllable driving shaft speed, characterized in that the distributor gear is constructed in the form of a change speed gear for producing different speeds of the two driving shafts with a constant speed ratio between the two driving shafts; the change speed gear is constructed in the form of a mechanical gear having an input shaft (1; 23), two output shafts (16, 21; 31, 32) extending to the driving shafts, and two gear wheel arrangements which can be driven alternately via engageable and disengageable clutches (5, 17, 18, 22; 26, 33, 34, 35); two gear wheels (24, 25) disposed on the input shaft (1; 23) each mesh with two gear wheels (14, 15, 19, 20; 27, 28, 29, 30) disposed on the output shafts (16, 21; 31, 32); and the gear wheels on the output schafts (16, 21; 31, 32) associated with one gear wheel arrangement, the gear wheel (2; 24) on the input shaft (1; 23) associated with the other gear wheel arrangement, and one of the two gear wheels (14; 27) on an output shaft (16; 31) and meshing with the gear wheel (2; 24) can all be engaged and disengaged via a clutch (17; 33).
2. A rolling mill drive according to claim 1, characterized in that a preferably hydraulic variable speed gear is associated with each of the two output shafts (16, 21; 31, 32) of the distributor gear which drive the driving shafts.
3. A rolling mill drive according to claim 1, characterized in that a preferably hydraulic variable speed gear is associated with the input shaft (1, 23) of the distributor gear which is driven by the driving motor.
EP85108991A 1985-07-18 1985-07-18 Rolling mill drive Expired EP0208803B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP85108991A EP0208803B1 (en) 1985-07-18 1985-07-18 Rolling mill drive
AT85108991T ATE48097T1 (en) 1985-07-18 1985-07-18 ROLLING BLOCK.
DE8585108991T DE3574346D1 (en) 1985-07-18 1985-07-18 Rolling mill drive
ES556232A ES8706487A1 (en) 1985-07-18 1986-06-19 Rolling mill drive.
US06/886,530 US4807458A (en) 1985-07-18 1986-07-16 Dividing gear unit for a roll block
JP61166877A JPS6221409A (en) 1985-07-18 1986-07-17 Roll block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85108991A EP0208803B1 (en) 1985-07-18 1985-07-18 Rolling mill drive

Publications (2)

Publication Number Publication Date
EP0208803A1 EP0208803A1 (en) 1987-01-21
EP0208803B1 true EP0208803B1 (en) 1989-11-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108991A Expired EP0208803B1 (en) 1985-07-18 1985-07-18 Rolling mill drive

Country Status (6)

Country Link
US (1) US4807458A (en)
EP (1) EP0208803B1 (en)
JP (1) JPS6221409A (en)
AT (1) ATE48097T1 (en)
DE (1) DE3574346D1 (en)
ES (1) ES8706487A1 (en)

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WO2018171395A1 (en) * 2017-03-23 2018-09-27 中冶赛迪工程技术股份有限公司 Independently driven rolling mill and unit therefor

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DE3877380T2 (en) * 1987-03-04 1993-06-24 Wilson Ian Technology ROLLING MILLS.
US4944664A (en) * 1989-09-19 1990-07-31 Allred Cecil F Concrete wall form apparatus
EP0613738B1 (en) * 1990-10-03 1999-01-20 Nippon Steel Corporation Apparatus for securing a work roll in a rolling mill
US5152165A (en) * 1991-07-11 1992-10-06 Morgan Construction Company Rolling mill
US5280714A (en) * 1992-07-27 1994-01-25 Morgan Construction Company Finishing block with dual speed sizing capability
JPH08260923A (en) * 1995-03-27 1996-10-08 Unisia Jecs Corp Valve lift characteristic detecting device for variable valve system of internal combustion engine
US5832765A (en) * 1995-10-14 1998-11-10 Daido Tokushuko Kabushiki Kaisha Method and an apparatus for manufacturing wire
ITPN20010012A1 (en) * 2001-02-15 2002-08-16 Sms Demag Aktiengesellshaft COMPACT LAMINATION BLOCK FOR TWO PARALLEL LINES.
DE102006034217A1 (en) * 2005-09-21 2007-03-22 Sms Demag Ag Drive device for rolling device
DE202007010730U1 (en) * 2007-08-02 2008-12-11 Loesche Gmbh Mill gearbox for roller mill
WO2010002371A1 (en) * 2008-07-03 2010-01-07 Deere & Company Compact creeper gear arrangement for a transmission
US9121473B2 (en) * 2012-12-03 2015-09-01 Morrison Container Handling Solutions, Inc. Multiple speed gear box
DE102018211266A1 (en) 2018-07-09 2020-01-09 Magna Exteriors Gmbh Vehicle component with light insert and assembly method

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WO2018171395A1 (en) * 2017-03-23 2018-09-27 中冶赛迪工程技术股份有限公司 Independently driven rolling mill and unit therefor

Also Published As

Publication number Publication date
EP0208803A1 (en) 1987-01-21
DE3574346D1 (en) 1989-12-28
ES556232A0 (en) 1987-07-01
JPS6221409A (en) 1987-01-29
ATE48097T1 (en) 1989-12-15
US4807458A (en) 1989-02-28
ES8706487A1 (en) 1987-07-01

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