EP0850703B1 - Wire rolling stand - Google Patents

Wire rolling stand Download PDF

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Publication number
EP0850703B1
EP0850703B1 EP97122111A EP97122111A EP0850703B1 EP 0850703 B1 EP0850703 B1 EP 0850703B1 EP 97122111 A EP97122111 A EP 97122111A EP 97122111 A EP97122111 A EP 97122111A EP 0850703 B1 EP0850703 B1 EP 0850703B1
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EP
European Patent Office
Prior art keywords
roller
rings
housing wall
roller shafts
profile
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
EP97122111A
Other languages
German (de)
French (fr)
Other versions
EP0850703A1 (en
Inventor
Friedhelm Womelsdorf
Gerhard Pithan
Rüdiger Grimmel
Karl Keller
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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Filing date
Publication date
Priority claimed from DE1996154062 external-priority patent/DE19654062A1/en
Priority claimed from DE29622323U external-priority patent/DE29622323U1/en
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP0850703A1 publication Critical patent/EP0850703A1/en
Application granted granted Critical
Publication of EP0850703B1 publication Critical patent/EP0850703B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/07—Adaptation of roll neck bearings
    • B21B31/078—Sealing devices
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/005—Cantilevered roll stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/26—Adjusting eccentrically-mounted roll bearings

Definitions

  • the invention relates to a wire rolling mill with two roller shafts overhung roller rings that are axially opposed by spacer rings an edge of the respective roller shaft can be clamped, in which the roller shafts by means of eccentric bushes held in a housing are adjustable and both the eccentric bushings and the Roller shafts are sealed against the housing walls.
  • the invention has for its object a sealing device for Wire mill stands to show the improved sealing effect has and has a longer service life.
  • the Roller shaft penetrated housing wall with the range of the Rollershafts is equipped with openings U-shaped profiled sealing rings are lined that between the flanks and the rolling rings, which are have a U-shaped profile are arranged, which by inside the Partition yokes lying at least two parts are divided, and with their legs on those of the sealing rings within the setting range rest, and that the penetrated by the roller shafts Housing wall has pressurized water supplying blind holes with outlet openings directed onto the roll-side sealing legs are provided.
  • the outlet openings of the water supply are open the roller-side sealing legs aligned so that the Sealing leg of the sealing rings on the one hand optimally over the entire circumference be pressed against the slide rings and that especially the emerging barrier water, which is supported by the centrifugal force from the inside of the sealing device to the outside arrives, which prevents sintered cooling water from reaching the Sealing lip.
  • the sealing water sprayed into the sealing device causes a cooling of the sealing rings and the sliding rings, so that a premature wear of the sealing rings due to overheating is excluded becomes.
  • roller-side legs of the slide rings one on the inside of their free ends with the housing wall have a narrow gap-forming projection.
  • the narrow gaps cause the sintered cooling water is optimally kept away from the sealing rings.
  • the pressure of the sealing water and thus also adjust the pressure on the sealing lips of the sealing rings slightly. If the sealing rings enclose a seal carrier, which with the The housing wall can be screwed, the sealing rings can be pushed through easy removal of the seal carrier and by mounting one new seal carrier with corresponding new sealing rings easily change.
  • the seal carrier connected to the housing wall has a plurality of blind holes connected to one another, the outlet openings distributed over the circumference of the seal are provided.
  • the housing wall penetrated by the roller shafts with the setting range of the openings taking into account the roller shafts is that between the flanks and the Walzringemen sliding rings which have a U-shaped profile are arranged, which by dividing surfaces located within the profile yokes at least in two are, and with their profile legs within the range the perforated housing wall to form one close gap that the penetrated by the roller shafts Housing wall has pressurized water supplying blind holes with outlet openings facing the roller-side slide ring legs are provided, and that more on the yokes of the Bores aligned with slide rings can be pressurized with compressed air are.
  • the sealing device consists of the U-shaped sliding rings, which with their legs form parts of the housing wall reach around the narrowest possible gap. Pressurized water can be placed in the column and / or compressed air are introduced, so that on the one hand the Sintered cooling water displaced from and under pressure water is prevented from entering the sealing area, causing a Mixing of the oil with the sinter is excluded and on the other hand the oil is kept away from the sealing area by compressed air. As a result, the oil is neither contaminated by sinter nor does it occur to major oil losses that would have to be replaced. As a result of that non-contact gap seals are provided, it can there is no wear. The service life of the seal increases compared to the generic seal considerably.
  • the housing wall the gap to the roll-side profile legs reducing beads are provided.
  • the through the ridges resulting reduced gap width between the pressurized water openings and the compressed air openings result in a better separation effect the roll-side gap to the drive-side gap of the sealing device, which increases the sealing effect.
  • the housing wall several, interconnected blind holes and several with each other has connected bores with the circumference of the slide rings distributed outlet openings and bore openings are provided.
  • the spacer rings 3, 4 are axially braced against flanks 5, 6 of the roller shafts 1, 2 and hold the rolling rings 7, 8.
  • Between the rolling rings 7, 8 and the flanks 5, 6 are U-shaped profiles 9, 10 trained slip rings arranged.
  • the U-shaped profiles 9, 10 are in their profile yokes 11, 12 divided into two.
  • the seal carrier 14 has the pitch range of the roller shafts 1, 2 openings taking into account.
  • Around the edges 16, 17 of the openings are sealing rings 18, 19 placed, which are firmly connected to the openings are.
  • the sealing rings 18, 19 have a U-shape and extend in the U-shaped profiles 9, 10 of the slide rings.
  • the profiles 9, 10 are dimensioned such that the sealing lips of the sealing rings 18, 19th with every possible adjustment of the roller shafts 1, 2 on the legs of profiles 9, 10 are present.
  • the seal carrier 14 has blind bores 20 which are in the area of the openings end and connected to the outlet openings 21 are on the roller-side sealing lips of the sealing rings 18, 19th are aligned. Via the blind bores 20 with their outlet openings 21, the roller-side sealing lips of the sealing rings 18, 19 with sealing water, which prevents from the cooling water nozzles 22, possibly from the rolling stock 23 Tinder-laden cooling water penetrate to the sealing rings 18, 19 can.
  • the U-shaped profiles 9, 10 have at the ends of their roll-side Legs a projection 24, 25 on that with the seal carrier 14 each form a narrow gap 26, 27, which prevents penetration largely prevented by sintered cooling water and in Combination with the sealing water flow from the gap 26, 27 penetration of the sintered cooling water.
  • the roller shafts 1, 2, which are in eccentric bushes 28, 29 are stored.
  • the blind holes 20, 20 'with their outlet openings 21, 21' in the seal carrier 14 recognizable.
  • the cooling water nozzles 22 are on the rolling rings 7, 8 aligned.
  • the sealing rings 18, 19 can be seen, in the area of which the outlet openings 21, 21 'are arranged.
  • FIG. 3 shows a roller shaft 101 on which a spacer ring 102 is arranged.
  • the spacer ring 102 is axially against a flank 103 the roller shaft 101 can be clamped and holds the roller ring 104.
  • a U-shaped profile 105 is arranged between the rolling ring 104 and the flank 103 .
  • the U-shaped profile 105 is in its profile yoke 106 divided in two.
  • the housing 107 is with a Plate 108 provided, the one in size the range of the Has roller shaft 101 opening.
  • Plate 108 has blind holes distributed on its circumference, pointing towards the opening 109 and bores 110 which end in the region of the opening.
  • the Blind bores 109 are connected to outlet openings 111 which on the roller-side leg 112 of the U-shaped profile 105 Clues.
  • the bore openings 113 of the bore 110 point to that Profile yoke 106 of the U-shaped profile 105 down.
  • the gap 114 between the plate 108 and the drive side Leg 115 of the U-shaped profile 105 is narrower than the gap 116 between the plate 108 and the leg 112.
  • the plate 108 has in the area of its lower end pointing to the leg 112 Bead 117 on between plate 108 and the flange 112 ensures the smallest possible gap 116.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)

Abstract

The wire roll stand includes two rolling rings (7, 8) which are mounted floatingly on two roll shafts (1, 2), and are axially clampable by means of distance rings (3, 4) against a shoulder (5, 6) of the respective shaft. The roll shafts are adjustable by means of eccentric sleeves (28, 29) held in a housing. Both the sleeves and the roll shafts are sealed against the housing walls. The roll stand is improved by the following facts: a) for the roll shafts (1, 2) the housing wall has openings provided with sealing rings (18, 19) with a U-shaped profile ; b) the distance rings have a U-shaped profile, and are divided at least into two parts by separating surfaces within the profile bridge elements (11, 12); c) the housing wall is provided with blind bores (20, 20') which serve for supply of pressurised water, and have outlet openings (21, 21').

Description

Die Erfindung betrifft ein Drahtwalzgerüst mit auf zwei Walzenwellen fliegend gelagerten Walzringen, die über Distanzringe axial gegen eine Flanke der jeweiligen Walzenwelle verspannbar sind, bei denen die Walzenwellen mittels in einem Gehäuse gehalterter Exzenterbuchsen anstellbar sind und wobei sowohl die Exzenterbuchsen sowie die Walzenwellen gegen Gehäusewände abgedichtet sind.The invention relates to a wire rolling mill with two roller shafts overhung roller rings that are axially opposed by spacer rings an edge of the respective roller shaft can be clamped, in which the roller shafts by means of eccentric bushes held in a housing are adjustable and both the eccentric bushings and the Roller shafts are sealed against the housing walls.

Gattungsgemäße Drahtwalzgerüste weisen neben Dichtungen für die Walzenwellen auch Dichtungen für die Exzenterbuchsen auf. Diese Dichtungen dienen dazu, die ölgeschmierte Antriebsseite der Walzenwellen von der wassergekühlten Walzenseite der Walzenwellen so zu trennen, daß weder das oft mit Sinter behaftete Kühlwasser in den Ölkreislauf noch Öl auf das Walzgut gelangen kann.Generic wire mill stands have seals for the Roller shafts also have seals for the eccentric bushings. This Seals serve the oil-lubricated drive side of the roller shafts from the water-cooled roller side of the roller shafts separate that neither the cooling water often sintered in the Oil circuit can still get oil on the rolling stock.

Es hat sich jedoch herausgestellt, daß die Standzeit der Dichtungen nicht befriedigend ist, da an der den Walzen zugewandten Seiten der Dichtungen das zur Kühlung der Walze eingesetzte Wasser oft mit Walzsinter versetzt ist. Der Walzsinter setzt sich unter den Dichtlippen der Dichtungen ab und führt hier zu ungleichmäßiger Anpressung und ungleichmäßigem Verschleiß, wodurch die Dichtwirkung nachteilig beeinflußt wird und es zum vorzeitigen Ausfall der Dichtung kommen kann. Durch defekte Dichtungen kann das im Kühlwasser enthaltene Sinter bis in den Ölkreislauf für die Walzenwelle gelangen und dort zur Zerstörung der Lager der Walzenwellen führen. Umgekehrt kann das Öl bis auf die Walzringe gelangen, wo es die Qualität des Walzguts negativ beeinflussen kann. Hinzu kommt, daß die Dichtungen leicht überhitzen, wodurch deren Lebensdauer erheblich vermindert wird. However, it has been found that the life of the seals is not satisfactory because on the side facing the rollers the Seals often use the water used to cool the roller Rolled sinter is offset. The roll sinter sits under the sealing lips of the seals and leads to uneven contact pressure and uneven wear, which creates the sealing effect is adversely affected and there is premature failure of the Seal can come. Defective seals can do this in the cooling water Sinter contained in the oil circuit for the roller shaft get there and lead to the destruction of the roller shaft bearings. Conversely, the oil can get to the roller rings where it is Can negatively affect the quality of the rolling stock. On top of that The seals overheat slightly, which increases their service life considerably is reduced.

Der Erfindung liegt die Aufgabe zugrunde, eine Dichtvorrichtung für Drahtwalzgerüste aufzuzeigen, die eine verbesserte Dichtwirkung besitzt und eine höhere Standzeit aufweist.The invention has for its object a sealing device for Wire mill stands to show the improved sealing effect has and has a longer service life.

Zur Lösung dieser Aufgabe wird vorgeschlagen, daß die von den Walzenwellen durchdrungene Gehäusewand mit den Anstellbereich der Walzenwellen berücksichtigenden Öffnungen ausgestattet ist, die mit U-förmig profilierten Dichtringen fest ausgekleidet sind, daß zwischen den Flanken und den Walzringemen Gleitringe, die ein U-förmiges Profil aufweisen angeordnet sind, welche durch innerhalb der Profiljoche liegende Trennflächen mindestens zweigeteilt sind, und mit ihren Schenkeln auf denen der Dichtringe innerhalb des Anstellbereichs aufliegen, und daß die von den Walzenwellen durchdrungene Gehäusewand Druckwasser zuführende Sackbohrungen aufweist, die mit auf die walzenseitigen Dichtungsschenkel gerichteten Austrittsöffnungen versehen sind.To solve this problem it is proposed that the Roller shaft penetrated housing wall with the range of the Rollershafts is equipped with openings U-shaped profiled sealing rings are lined that between the flanks and the rolling rings, which are have a U-shaped profile are arranged, which by inside the Partition yokes lying at least two parts are divided, and with their legs on those of the sealing rings within the setting range rest, and that the penetrated by the roller shafts Housing wall has pressurized water supplying blind holes with outlet openings directed onto the roll-side sealing legs are provided.

Durch eine Dichtungsvorrichtung, bestehend aus den U-förmigen Gleitringen und den U-förmigen Dichtringen, werden sowohl die Walzenwellen als auch die Exzenterbuchsen gedichtet. Die U-förmigen Gleitringe, in welche die U-förmigen Dichtringe dichtend eingesetzt sind, gleichen die Anstellbewegung der Walzenwellen aus. Um zu verhindern, daß Sinter bis zu den jeweiligen Dichtringen gelangen kann, ist die Gehäusewand mit Wasserzuführungen für Sperrwasser ausgestattet. Die Austrittsöffnungen der Wasserzuführungen sind auf die walzenseitigen Dichtungsschenkel ausgerichtet, so daß die Dichtungsschenkel der Dichtringe einerseits optimal gleichmäßig über den gesamten Umfang gegen die Gleitringe angepreßt werden und daß insbesondere das austretende Sperrwasser, welches unterstützt durch die Fliehkraft vom Innenbereich der Dichtungsvorrichtung nach außen gelangt, das mit Sinter behaftete Kühlwasser daran hindert, bis zur Dichtungslippe zu gelangen. Zudem werden durch das ausströmende Sperrwasser feste Partikel aus dem Dichtungsbereich gespült und damit entsprechende Ablagerungen verhindert. Through a sealing device consisting of the U-shaped Slide rings and the U-shaped sealing rings, both the Roller shafts and the eccentric bushes sealed. The U-shaped Sliding rings in which the U-shaped sealing rings are inserted in a sealing manner are, the adjustment movement of the roller shafts compensate. Around to prevent sinters from reaching the respective sealing rings can, is the housing wall with water inlets for sealing water fitted. The outlet openings of the water supply are open the roller-side sealing legs aligned so that the Sealing leg of the sealing rings on the one hand optimally over the entire circumference be pressed against the slide rings and that especially the emerging barrier water, which is supported by the centrifugal force from the inside of the sealing device to the outside arrives, which prevents sintered cooling water from reaching the Sealing lip. In addition, the outflow Bulky water flushed solid particles out of the sealing area and so that appropriate deposits are prevented.

Weiterhin bewirkt das in die Dichtungsvorrichtung gespritzte Sperrwasser eine Kühlung der Dichtringe und der Gleitringe, so daß ein vorzeitiger Verschleiß der Dichtringe durch Überhitzen ausgeschlossen wird.Furthermore, the sealing water sprayed into the sealing device causes a cooling of the sealing rings and the sliding rings, so that a premature wear of the sealing rings due to overheating is excluded becomes.

Vorteilhaft ist, wenn die walzenseitigen Schenkel der Gleitringe an der Innenseite ihrer freien Enden einen mit der Gehäusewand einen engen Spalt bildenden Vorsprung aufweisen.It is advantageous if the roller-side legs of the slide rings one on the inside of their free ends with the housing wall have a narrow gap-forming projection.

Die engen Spalte bewirken, daß das sinterbehaftete Kühlwasser optimal von den Dichtringen ferngehalten wird. Zudem läßt sich bei vorgegebener Spaltbreite der Druck des Sperrwassers und damit auch der Druck auf die Dichtungslippen der Dichtringe leicht einstellen. Wenn die Dichtringe einen Dichtungsträger umschließen, der mit der Gehäusewand verschraubbar ist, lassen sich die Dichtringe durch einfaches Abnehmen des Dichtungsträgers und durch Montage eines neuen Dichtungsträgers mit entsprechenden neuen Dichtringen leicht austauschen.The narrow gaps cause the sintered cooling water is optimally kept away from the sealing rings. In addition, at given gap width, the pressure of the sealing water and thus also adjust the pressure on the sealing lips of the sealing rings slightly. If the sealing rings enclose a seal carrier, which with the The housing wall can be screwed, the sealing rings can be pushed through easy removal of the seal carrier and by mounting one new seal carrier with corresponding new sealing rings easily change.

Es hat sich bewährt, daß der mit der Gehäusewand verbundene Dichtungsträger mehrere, miteinander verbundene Sackbohrungen aufweist, die mit über den Dichtungsumfang verteilt angeordneten Austrittsöffnungen versehen sind.It has been found that the seal carrier connected to the housing wall has a plurality of blind holes connected to one another, the outlet openings distributed over the circumference of the seal are provided.

Dadurch wird erreicht, daß sich über den Dichtring-Umfang ein möglichst gleich großer Druck des Sperrwassers aufbauen kann, so daß auch die walzseitigen Dichtlippen der Dichtringe über ihren Umfang gleichmäßig an die Distanzringe gepreßt werden.This ensures that the seal ring circumference can build up the same large possible pressure of the sealing water, so that the roll-side sealing lips of the sealing rings over their Circumference evenly pressed against the spacer rings.

Ein weiterer Vorschlag zur Lösung der Aufgabe besteht darin, daß die von den Walzenwellen durchdrungene Gehäusewand mit den Anstellbereich der Walzenwellen berücksichtigenden Öffnungen ausgestattet ist, daß zwischen den Flanken und den Walzringemen Gleitringe, die ein U-förmiges Profil aufweisen angeordnet sind, welche durch innerhalb der Profiljoche liegende Trennflächen mindestens zweigeteilt sind, und mit ihren Profilschenkeln innerhalb des Anstellbereichs die durchbrochene Gehäusewand unter Bildung jeweils eines engen Spaltes umschließen, daß die von den Walzenwellen durchdrungene Gehäusewand Druckwasser zuführende Sackbohrungen aufweist, die mit auf die walzenseitigen Gleitringschenkel gerichteten Austrittsöffnungen versehen sind, und daß weitere auf die Joche der Gleitringe ausgerichtete Bohrungen mit Druckluft beaufschlagbar sind.Another proposal to solve the problem is that the housing wall penetrated by the roller shafts with the setting range of the openings taking into account the roller shafts is that between the flanks and the Walzringemen sliding rings which have a U-shaped profile are arranged, which by dividing surfaces located within the profile yokes at least in two are, and with their profile legs within the range the perforated housing wall to form one close gap that the penetrated by the roller shafts Housing wall has pressurized water supplying blind holes with outlet openings facing the roller-side slide ring legs are provided, and that more on the yokes of the Bores aligned with slide rings can be pressurized with compressed air are.

Die Dichtvorrichtung besteht aus den U-förmig profilierten Gleitringen, die mit ihren Schenkeln Teile der Gehäusewand unter Bildung möglichst enger Spalte umgreifen. In die Spalte kann Druckwasser und/oder Druckluft eingeführt werden, so daß einerseits das mit Sinter versetzte Kühlwasser vom Druckwasser verdrängt und daran gehindert wird, in den Dichtungsbereich zu gelangen, wodurch ein Vermischen des Öls mit dem Sinter ausgeschlossen ist und andererseits das Öl durch Druckluft vom Dichtungsbereich ferngehalten wird. Dadurch wird das Öl weder durch Sinter verunreinigt noch kommt es zu größeren Ölverlusten, die ersetzt werden müßten. Dadurch daß berührungslos arbeitende Spaltdichtungen vorgesehen sind, kann es zu keinem Verschleiß kommen. Die Standzeit der Dichtung erhöht sich gegenüber der gattungsgemäßen Dichtung erheblich.The sealing device consists of the U-shaped sliding rings, which with their legs form parts of the housing wall reach around the narrowest possible gap. Pressurized water can be placed in the column and / or compressed air are introduced, so that on the one hand the Sintered cooling water displaced from and under pressure water is prevented from entering the sealing area, causing a Mixing of the oil with the sinter is excluded and on the other hand the oil is kept away from the sealing area by compressed air. As a result, the oil is neither contaminated by sinter nor does it occur to major oil losses that would have to be replaced. As a result of that non-contact gap seals are provided, it can there is no wear. The service life of the seal increases compared to the generic seal considerably.

Von Vorteil ist, wenn im Bereich der walzenseitigen Öffnungen in der Gehäusewand den Spalt zu den walzenseitigen Profilschenkeln verringernde Randwulste vorgesehen sind. Die durch die Randwulste entstehende verminderte Spaltbreite zwischen den Druckwasseröffnungen und den Druckluftöffnungen bewirkt eine bessere Trennwirkung des walzenseitigen Spaltes zum antriebsseitigen Spalt der Dichtungsvorrichtung, wodurch die Dichtwirkung noch erhöht wird.It is advantageous if in the area of the roller-side openings the housing wall the gap to the roll-side profile legs reducing beads are provided. The through the ridges resulting reduced gap width between the pressurized water openings and the compressed air openings result in a better separation effect the roll-side gap to the drive-side gap of the sealing device, which increases the sealing effect.

Es hat sich bewährt, daß die zwischen den antriebsseitigen Schenkeln der Gleitringe und der Gehäusewand gebildeten Spalte enger sind als die walzenseitig gebildeten Spalte. Dadurch ist gewährleistet, daß für einen bestimmten geforderten Luftdruck am Ende des Spaltes ein nicht zu großer Luftdurchsatz notwendig wird.It has been found that between the legs on the drive side the seal rings and the housing wall formed are narrower than the column formed on the roll side. This ensures that for a certain required air pressure at the end of the gap a not too large air flow becomes necessary.

Um sowohl die Druckluft als auch das Druckwasser optimal im Spalt zu verteilen wird vorgeschlagen, daß die Gehäusewand mehrere, miteinander verbundene Sackbohrungen und mehrerer miteinander verbundene Bohrungen aufweist, die mit über den Umfang der Gleitringe verteilt angeordneten Austrittsöffnungen und Bohrungsöffnungen versehen sind.In order to optimally fit both the compressed air and the pressurized water in the gap to distribute it is proposed that the housing wall several, interconnected blind holes and several with each other has connected bores with the circumference of the slide rings distributed outlet openings and bore openings are provided.

Die Erfindung wird anhand einer Zeichnung näher erläutert. Dabei zeigen

Figur 1
eine schematisch dargestellte Teil-Seitenansicht eines ersten Ausführungsbeispiels des erfindungsgemäßen Drahtwalzgerüsts,
Figur 2
eine schematisch dargestellte Vorderansicht auf die Walzen des erfindungsgemäßen Drahtwalzgerüstes nach Fig. 1, und
Figur 3
den Dichtungsbereich für eine der beiden Walzenwellen eines zweiten Ausführungsbeispiels des erfindungsgemäßen Drahtwalzgerüstes.
The invention is explained in more detail with reference to a drawing. Show
Figure 1
2 shows a schematically illustrated partial side view of a first exemplary embodiment of the wire rolling mill according to the invention,
Figure 2
a schematically illustrated front view of the rollers of the wire rolling mill according to FIG. 1, and
Figure 3
the sealing area for one of the two roller shafts of a second embodiment of the wire rolling mill according to the invention.

Der Fig. 1 sind abgebrochen dargestellte Walzenwellen 1, 2 entnehmbar, auf denen Distanzringe 3, 4 montiert sind. Die Distanzringe 3, 4 sind axial gegen Flanken 5, 6 der Walzenwellen 1, 2 verspannbar und haltern die Walzringe 7, 8. Zwischen der Walzringen 7, 8 und den Flanken 5, 6 sind als U-förmige Profile 9, 10 ausgebildete Gleitringe angeordnet. Die U-förmigen Profile 9, 10 sind in ihren Profiljochen 11, 12 zweigeteilt. Am Gehäuse 13 des Drahtwalzgerüstes ist ein Dichtungsträger 14 mittels Schrauben 15 befestigt. Der Dichtungsträger 14 besitzt in ihren Größen den Anstellbereich der Walzenwellen 1, 2 berücksichtigende Öffnungen. Um die Ränder 16, 17 der Öffnungen sind Dichtringe 18, 19 gelegt, die mit den Öffnungen fest verbunden sind. Die Dichtringe 18, 19 weisen U-Form auf und erstrecken sich in die U-förmigen Profile 9, 10 der Gleitringe. Die Profile 9, 10 sind so bemessen, daß die Dichtlippen der Dichtringe 18, 19 bei jeder möglichen Anstellung der Walzenwellen 1, 2 an den Schenkeln der Profile 9, 10 anliegen.1 shows roller shafts 1, 2 shown broken off, on which spacer rings 3, 4 are mounted. The spacer rings 3, 4 are axially braced against flanks 5, 6 of the roller shafts 1, 2 and hold the rolling rings 7, 8. Between the rolling rings 7, 8 and the flanks 5, 6 are U-shaped profiles 9, 10 trained slip rings arranged. The U-shaped profiles 9, 10 are in their profile yokes 11, 12 divided into two. There is a seal carrier on the housing 13 of the wire rolling mill 14 fastened by means of screws 15. The seal carrier 14 has the pitch range of the roller shafts 1, 2 openings taking into account. Around the edges 16, 17 of the openings are sealing rings 18, 19 placed, which are firmly connected to the openings are. The sealing rings 18, 19 have a U-shape and extend in the U-shaped profiles 9, 10 of the slide rings. The profiles 9, 10 are dimensioned such that the sealing lips of the sealing rings 18, 19th with every possible adjustment of the roller shafts 1, 2 on the legs of profiles 9, 10 are present.

Der Dichtungsträger 14 weist Sackbohrungen 20 auf, die im Bereich der Öffnungen enden und die mit Austrittsöffnungen 21 verbunden sind, die auf die walzenseitigen Dichtlippen der Dichtringe 18, 19 ausgerichtet sind. Über die Sackbohrungen 20 mit ihren Austrittsöffnungen 21 können die walzenseitigen Dichtlippen der Dichtringe 18, 19 mit Sperrwasser beaufschlagt werden, welches verhindert, daß aus den Kühlwasserdüsen 22 austretendes, eventuell vom Walzgut 23 mit Zunder behaftetes Kühlwasser bis zu den Dichtringen 18, 19 vordringen kann.The seal carrier 14 has blind bores 20 which are in the area of the openings end and connected to the outlet openings 21 are on the roller-side sealing lips of the sealing rings 18, 19th are aligned. Via the blind bores 20 with their outlet openings 21, the roller-side sealing lips of the sealing rings 18, 19 with sealing water, which prevents from the cooling water nozzles 22, possibly from the rolling stock 23 Tinder-laden cooling water penetrate to the sealing rings 18, 19 can.

Die U-förmigen Profile 9, 10 weisen an den Enden ihrer walzenseitigen Schenkeln einen Vorsprung 24, 25 auf, die mit den Dichtungsträgern 14 jeweils einen engen Spalt 26, 27 bilden, der ein Eindringen von sinterhaltigem Kühlwasser weitgehend verhindert und in Kombination mit dem Sperrwasserfluß aus dem Spalt 26, 27 ein Eindringen des sinterhaltigen Kühlwassers ausschließt.The U-shaped profiles 9, 10 have at the ends of their roll-side Legs a projection 24, 25 on that with the seal carrier 14 each form a narrow gap 26, 27, which prevents penetration largely prevented by sintered cooling water and in Combination with the sealing water flow from the gap 26, 27 penetration of the sintered cooling water.

In Fig. 2 sind die Walzenwellen 1, 2, die in Exzenterbuchsen 28, 29 gelagert sind, zu erkennen. Insbesondere sind die Sackbohrungen 20, 20' mit ihren Austrittsöffnungen 21, 21' im Dichtungsträger 14 erkennbar. Die Kühlwasserdüsen 22 sind auf die Walzringe 7, 8 ausgerichtet. Weiterhin sind die Dichtungsringe 18, 19 zu erkennen, in deren Bereich die Austrittsöffnungen 21, 21' angeordnet sind.2, the roller shafts 1, 2, which are in eccentric bushes 28, 29 are stored. In particular, the blind holes 20, 20 'with their outlet openings 21, 21' in the seal carrier 14 recognizable. The cooling water nozzles 22 are on the rolling rings 7, 8 aligned. Furthermore, the sealing rings 18, 19 can be seen, in the area of which the outlet openings 21, 21 'are arranged.

Figur 3 zeigt eine Walzenwelle 101, auf der ein Distanzring 102 angeordnet ist. Der Distanzring 102 ist axial gegen eine Flanke 103 der Walzenwelle 101 verspannbar und haltert den Walzring 104. Zwischen dem Walzring 104 and der Flanke 103 ist ein U-förmiges Profil 105 angeordnet. Das U-förmige Profil 105 ist in seinem Profiljoch 106 zweigeteilt. Das Gehäuse 107 ist mit einer Platte 108 versehen, die eine in ihrer Größe den Anstellbereich der Walzenwelle 101 berücksichtigende Öffnung aufweist. Die Platte 108 weist auf ihrem Umfang verteilte, zur Öffnung weisende Sackbohrungen 109 sowie Bohrungen 110 auf, die im Bereich der Öffnung enden. Die Sackbohrungen 109 sind mit Austrittsöffnungen 111 verbunden, die auf den walzenseitigen Schenkel 112 des U-förmigen Profils 105 hinweisen. Die Bohrungsöffnungen 113 der Bohrung 110 weisen auf das Profiljoch 106 des U-förmigen Profils 105 hin.FIG. 3 shows a roller shaft 101 on which a spacer ring 102 is arranged. The spacer ring 102 is axially against a flank 103 the roller shaft 101 can be clamped and holds the roller ring 104. Is between the rolling ring 104 and the flank 103 a U-shaped profile 105 is arranged. The U-shaped profile 105 is in its profile yoke 106 divided in two. The housing 107 is with a Plate 108 provided, the one in size the range of the Has roller shaft 101 opening. Plate 108 has blind holes distributed on its circumference, pointing towards the opening 109 and bores 110 which end in the region of the opening. The Blind bores 109 are connected to outlet openings 111 which on the roller-side leg 112 of the U-shaped profile 105 Clues. The bore openings 113 of the bore 110 point to that Profile yoke 106 of the U-shaped profile 105 down.

Der Spalt 114 zwischen der Platte 108 und dem antriebsseitigen Schenkel 115 des U-förmigen Profils 105 ist schmaler als der Spalt 116 zwischen der Platte 108 und dem Schenkel 112. Die Platte 108 weist im Bereich ihres unteren Endes eine zum Schenkel 112 hinweisenden Wulst 117 auf, der zwischen der Platte 108 und dem Flansch 112 einen möglichst kleinen Spalt 116 gewährleistet. The gap 114 between the plate 108 and the drive side Leg 115 of the U-shaped profile 105 is narrower than the gap 116 between the plate 108 and the leg 112. The plate 108 has in the area of its lower end pointing to the leg 112 Bead 117 on between plate 108 and the flange 112 ensures the smallest possible gap 116.

BezugszeichenübersichtReference symbol overview

11
WalzenwelleRoller shaft
22nd
WalzenwelleRoller shaft
33rd
DistanzringSpacer ring
44th
DistanzringSpacer ring
55
FlankeFlank
66
FlankeFlank
77
WalzringRolling ring
88th
WalzringRolling ring
99
U-förmiges ProfilU-shaped profile
1010th
U-förmiges ProfilU-shaped profile
1111
ProfiljochProfiljoch
1212th
ProfiljochProfiljoch
1313
Gehäusecasing
1414
DichtungsträgerSeal carrier
1515
SchraubenScrews
1616
Randedge
1717th
Randedge
1818th
DichtringSealing ring
1919th
DichtringSealing ring
2020th
SackbohrungBlind hole
2121
AustrittsöffnungOutlet opening
2222
KühlwasserdüseCooling water nozzle
2323
WalzgutRolling stock
2424th
Vorsprunghead Start
2525th
Vorsprunghead Start
2626
Spaltgap
2727
Spaltgap
2828
ExzenterbuchseEccentric bushing
2929
Exzenterbuchse Eccentric bushing
101101
WalzenwelleRoller shaft
102102
DistanzringSpacer ring
103103
FlankeFlank
104104
WalzringRolling ring
105105
U-förmiges ProfilU-shaped profile
106106
ProfiljochProfiljoch
107107
Gehäusecasing
108108
Platteplate
109109
SackbohrungBlind hole
110110
Bohrungdrilling
111111
AustrittsöffnungOutlet opening
112112
walzenseitiger Schenkelroller-side leg
113113
BohrungsöffnungHole opening
114114
Spaltgap
115115
antriebsseitiger Schenkeldrive side leg
116116
Spaltgap
117117
Wulstbead

Claims (8)

  1. Wire rolling stand comprising roller rings (7, 8) which are mounted in cantilever manner on two roller shafts (1, 2) and which can be clamped by way of spacer rings (3, 4) axially against a flank (5, 6) of the respective roller shaft (1, 2), in which the roller shafts (1, 2) are adjustable by means of eccentric bushes (28, 29) mounted in a housing and wherein not only the eccentric bushes (28, 29), but also the roller shafts (1, 2) are sealed relative to the housing walls, characterised in that the housing wall penetrated by the roller shafts (1, 2) is furnished with openings which accommodate the adjustment range of the roller shafts (1, 2) and which are fixedly lined with sealing rings (18, 19) profiled in U-shape, that arranged between the flanks (5, 6) and the roller rings (7, 8) are slide rings which have a U-shaped profile (9, 10) and are divided into at least two by separating surfaces disposed within the profile yoke (11, 12) and which bear by their limbs against those of the sealing rings (18, 19) within the adjustment range and that the housing wall penetrated by the roller shafts (1, 2) have blind bores (20, 20') which feed water under pressure and which are provided with outlet openings (21, 21') directed towards the sealing limbs at the side of the rollers.
  2. Wire rolling stand according to claim 1, characterised in that the limbs of the U-shaped profiles (8, 9) at the roller side have at the inner side of their free ends a projection (23, 24) forming together with the housing wall a narrow gap (26, 27).
  3. Wire rolling stand according to one of claims 1 and 2, characterised in that the sealing rings (18, 19) surround a seal carrier (14) which is screw-connected with the housing wall.
  4. Wire rolling stand according to one of claims 1 to 3, characterised in that the seal carrier (14) connected with the housing wall has several interconnected blind bores (20, 20') which are provided with outlet openings (21, 21') distributed over the circumference of the seal.
  5. Wire rolling stand comprising roller rings (104) which are mounted in cantilever manner on two roller shafts (101) and which can be clamped by way of spacer rings (102) axially against a flank (103) of the respective roller shaft (101), in which the roller shafts (101) are adjustable by means of eccentric bushes mounted in a housing and wherein not only the eccentric bushes, but also the roller shafts (101) are sealed relative to the housing walls, characterised in that the housing wall penetrated by the roller shafts (101) is furnished with openings which accommodate the adjustment range of the roller shafts (101), that are arranged between the flanks (103) and the roller rings (104) are U-shaped profiles (105), which are divided into at least two by separating surfaces disposed within the profile yoke (106) and which enclose by their profile limbs (112, 115) within the adjustment range the apertured housing wall whilst each forming a respective narrow gap (114, 116), that the housing wall penetrated by the roller shafts (101) has blind bores (109) which feed water under pressure and which are provided with outlet openings (111) directed towards the profile limbs (112) at the side of the rollers, and that further bores (110) directed towards the profile yoke (106) can be loaded with compressed air.
  6. Wire rolling stand according to claim 5, characterised in that edge beads (117) reducing towards the profile limbs (112) at the roller side are provided in the region of the openings in the housing wall at the gap (116).
  7. Wire rolling stand according to claim 5 or 6, characterised in that the gaps (114) formed between the limbs (115) at the drive side and the housing wall are narrower than the gaps (116) formed at the roller side.
  8. Wire roller stand according to claims 5 to 7, characterised in that the housing wall has several interconnected blind bores (109) and/or bores (110) which are provided with outlet openings (111) and/or bore openings (113) distributed over the circumference of the U-shaped profile (105).
EP97122111A 1996-12-23 1997-12-16 Wire rolling stand Expired - Lifetime EP0850703B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE1996154062 DE19654062A1 (en) 1996-12-23 1996-12-23 Wire roll stand with roll shaft seal
DE19654062 1996-12-23
DE29622323U DE29622323U1 (en) 1996-12-23 1996-12-23 Wire mill stand
DE29622323U 1996-12-23

Publications (2)

Publication Number Publication Date
EP0850703A1 EP0850703A1 (en) 1998-07-01
EP0850703B1 true EP0850703B1 (en) 2001-11-28

Family

ID=26032719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97122111A Expired - Lifetime EP0850703B1 (en) 1996-12-23 1997-12-16 Wire rolling stand

Country Status (4)

Country Link
US (1) US5855134A (en)
EP (1) EP0850703B1 (en)
AT (1) ATE209539T1 (en)
DE (1) DE59705540D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022063615A1 (en) * 2020-09-28 2022-03-31 Sms Group Gmbh Roller assembly

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6134930A (en) * 2000-01-26 2000-10-24 Morgan Construction Company Lubrication system
IT1315084B1 (en) * 2000-04-20 2003-02-03 Danieli Off Mecc COOLING DEVICE FOR ROLLING RINGS AND RELATED PROCEDURE.
US6385989B1 (en) * 2000-06-15 2002-05-14 Morgan Construction Company Coolant delivery device
US9358595B2 (en) * 2011-09-28 2016-06-07 Siemens Industry, Inc. Rolling stand roll neck seal
US9427788B2 (en) * 2013-11-13 2016-08-30 Primetals Technologies USA LLC Cooling device for a rolling mill work roll
CN105180550B (en) * 2015-09-06 2018-01-30 江苏润孚机械轧辊制造有限公司 A kind of roll produces roller shutter type cooling water tank
CN110388466A (en) * 2019-08-27 2019-10-29 衡水哈西特液压机械有限公司 A kind of high-speed rod-rolling mill quick-changing type sealing hydrocarbons system

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Publication number Priority date Publication date Assignee Title
US3336781A (en) * 1964-08-24 1967-08-22 Morgan Construction Co Rolling mill
US3892446A (en) * 1974-04-29 1975-07-01 Morgan Construction Co Shaft seal
US3884535A (en) * 1974-04-29 1975-05-20 Morgan Construction Co Seal
GB2106196B (en) * 1981-09-16 1986-04-09 Ashlow Ltd Seals
US4423612A (en) * 1981-12-18 1984-01-03 Southwire Company Cantilevered roll shaft bearing bracket
IT1187539B (en) * 1985-02-28 1987-12-23 Danieli Off Mecc LABYRINTH SEAL
US4630458A (en) * 1985-03-12 1986-12-23 Durametallic Corporation Seal arrangement for mill roll
US4910987A (en) * 1989-02-27 1990-03-27 Morgan Construction Company Roll neck face seal for cantilevered rolling mill
JPH03124306A (en) * 1989-10-04 1991-05-27 Sumitomo Metal Ind Ltd Seal device for block mill
US5524469A (en) * 1993-11-08 1996-06-11 Sherwood; William L. Rolling mill stand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022063615A1 (en) * 2020-09-28 2022-03-31 Sms Group Gmbh Roller assembly

Also Published As

Publication number Publication date
DE59705540D1 (en) 2002-01-10
ATE209539T1 (en) 2001-12-15
EP0850703A1 (en) 1998-07-01
US5855134A (en) 1999-01-05

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