EP1179373B1 - Hohlmantelwalze - Google Patents
Hohlmantelwalze Download PDFInfo
- Publication number
- EP1179373B1 EP1179373B1 EP01117980A EP01117980A EP1179373B1 EP 1179373 B1 EP1179373 B1 EP 1179373B1 EP 01117980 A EP01117980 A EP 01117980A EP 01117980 A EP01117980 A EP 01117980A EP 1179373 B1 EP1179373 B1 EP 1179373B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core body
- lubricant
- hollow shell
- core
- shell roll
- 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
Links
- 239000000314 lubricant Substances 0.000 claims abstract description 60
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 description 27
- 238000005452 bending Methods 0.000 description 10
- 230000006978 adaptation Effects 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000006735 deficit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Images
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
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/05—Sleeved rolls with deflectable sleeves
-
- 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
Definitions
- the invention relates to a hollow casing roller which rotates about the central axis, hydraulically supported core body receives as a plain bearing.
- EP 0 937 515 A1 is based on the object, a rigid roller to create a simple and quick adaptation to a Changing the rolling conditions, in particular the bandwidth allows.
- the known roll consists of a rotating rolling shell with an inside the roller shell arranged sliding bearing in the form of a rotating body for influencing the bending stiffness of the rolling mantle.
- This rotation body should to the load zone of the rolling shell generated by the rolling stock Counteracting force in such a way that this drag force evenly over distributes the load zone of the rolling stock and thus the contour of the roller or the work roll in the load area is rectilinear or adapted to the rolling stock profile becomes.
- hollow casing rollers which are an internal, fixed Rotate the carrier.
- DE 3119387 describes that between the Carrier and the rolling mantle completed by sealing strips, hydrostatic Pressure chamber is located and additionally provided stamp-like support elements are, which are connectable to at least one pressure medium source and in the Symmetrieebene the pressure chamber are located. In such an embodiment can choose the pressures in the pressure chamber and the forces of the support elements the pressures in their cylinder chambers are determined independently of each other, and thus determine the deflection behavior.
- the invention is based on the object, a generic hollow casing roller to provide with an inner core body as a sliding bearing, in which described Disadvantages are avoided and in which the profile and the flatness the flat rolled rolled material can be influenced.
- the core body is formed with variable over the circumference and the core ball length bale.
- the core body has a variable over the circumference and the core ball length crowning, because it can be trained so that from the center of the core body on the Kernballenine a contour is ground, in the extreme case of any, based on experience for normal use crowning n corresponds, the size of which additionally depends on the angle of rotation ⁇ .
- the crowning n usually corresponds to the expected bending line under rolling force, which can be precalculated; the twist angle ⁇ results from the change in position of the core body when it is rotated out of its original position about its central axis for setting the crowning n between 0 and n.
- Such a core body can be produced by machine, wherein the angle of rotation ⁇ is additionally detected and employed a grinding wheel in the X and Y directions becomes.
- the shape of the core body is freely selectable, for example in the form of an ellipsoid or paraboloid. Towards the bearing journal, the core body is cylindrical educated.
- An embodiment of the invention provides that in the core body a Schmierstoffzu GmbHbohrung is provided, from the at least one channel to a on the circumference of the core body introduced distributor groove leads.
- the channel or the channels between them Bore and introduced at the periphery of the core body distribution groove can be Lubricant for lubrication in the gap of the load area between Insert hollow casing and core body.
- the distribution groove on the circumference is arranged so that the entire range from the minimum to the maximum Kernballtechnik is adjustable, the distributor groove in all cases outside the hydrodynamic Tragzonen Kunststoffes remains and thus no impairment of hydrodynamic principle of action occurs.
- the Core body In one-way operation, d. H. at a certain rotation of the hollow shell, the Core body from its initial position by the angle of rotation ⁇ from 0 ° to 180 ° twisted out until the core body occupies a position with its convex contour, which is adapted to the expected bending line.
- the core body depends on the different Rotational angles optionally by the angle of rotation ⁇ from 0 ° to -120 ° or ⁇ of 0 ° to + 120 ° is twisted out of its original position out.
- An embodiment of the invention provides that the core body over the Kernballenin divided into several zones, and in these zones over the circumference divide into several Schmierstoffzuwood Kunststoffe.
- This up and Subdivision can be optimized in particular the hydrostatic bearing principle and due to the individual zones on the one hand an ideal adaptation of the contour the core body to the existing bending line and on the other hand, a zone by zone Influence of the roll gap and thus the rolling stock profile and the Achieve rolling stock planarity.
- an embodiment of the invention provides that the core body to each Zone and to each Schmierstoffzu réelle Colour running lubricant supply holes each of which has a channel assigned to one in each zone introduced in each lubricant area on the circumference of the core body Distributor groove leads.
- This embodiment of the invention can be a targeted effective influencing of the gap of the load area between core body and hollow sheath reach by selectively connectable lubricant pressure, whereby a desired zonal action on the nip and thereby on the rolled section and on the rolling stock planarity is possible.
- the selectable switchable Lubricant pressure and the required flow rate can be via known higher-level computer systems for profile and flatness control determine. About this computer system valves are controlled, which are in connection lines between a lubricant source and the lubricant supply holes are mounted.
- the invention proposes that the service side and On the drive side for supporting the support roller simultaneously thrust bearing and spherical Insert bearing.
- the core body can thereby be rotated under load set, because a tilt-free storage of the core body is achieved.
- Of the Angle of rotation for setting the crown is via known computer systems determines which a control signal to access units for rotation of the core body to transfer.
- the proposed hollow sheath roll is advantageously as a support roller, preferably used in quarto and other multi-roll stands.
- a core body 2 shown in FIG. 1 of a hollow shell roll 1, e.g. as a backup roll in a quartz scaffolding, has a circular in the middle (see section A - A in Fig. 1) Shape, wherein the circle center on the axis of the cylindrical core body ends 3 is located. Starting from the middle is symmetrical towards both ends about the Kernballenpen 4 of the core body 2 a contour 5 ground in the Extreme case of a crowning n corresponds (see section B - B in Fig. 1), their size on the one hand by the expected bending line under rolling force, and on the other hand additionally depends on the angle of rotation ⁇ .
- the expected bending line under Rolling force is based on experience, and the angle of rotation ⁇ results from the change in position of the core body when this is to adjust the effective crowning between 0 and n out of its original position around his Central axis is rotated.
- the crown In the intermediate positions, the crown is infinitely between 0 and n.
- the core body 2 shown in Figure 1 has been mechanically produced, including the angle of rotation ⁇ was additionally detected and the grinding wheel 6 in the x and y directions was hired accordingly.
- FIG. 2 shows that from the non-rotationally symmetrical core body 2 in one Hollow shell 7 existing hollow casing roller 1 as a support roller of a Quartogerüstes. It supports a work roll 8, which bears against the rolling stock 9. The Rolling arrangement is shown in the unloaded state.
- FIG. 3 shows the rolling arrangement according to FIG. 2 in the loaded state.
- the Core body 2 was here to be expected in accordance with this load case, precalculated maximum bending line, by turning around the twist angle ⁇ adjusted so that the core body 2 with its maximum ground Contour 5, i. the crowning n counteracts the maximum bending line.
- the possible adjustment range 10 of the core body 2 by the angle of rotation ⁇ of 0 ° to 180 ° is in FIG. 4 a for the load case of the so-called one-way operation, as a section through the circular center of the core body 1 (see the section A-A in FIG. 1).
- the hydrodynamic bearing principle realizes a lubricant supply, the one centrally arranged in the core body 2 Schmierstoffzu GmbHbohrung 11, and from this to the outside branching off to the outside on the circumference of the Core body 2 provided distribution groove 12 leading channels 13 has.
- the supplied Lubricant can be determined by the rotational direction D of the hollow shell 7 in Lubricant flow direction 14 to the gap of the load area 15 between Conduct core body 2 and hollow jacket 7.
- FIG. 4b shows the profile of the distributor groove 12 with over the core ball length 4 of the core body 2 distributes a plurality of the lubricant supply bore 11 with the Distributor groove 12 connecting spaced apart from one another the Schmierstoffzu GmbHbohrung 11 branching channels 13 in perspective Longitudinal section of the core body 2.
- section B-B of Figure 4b is the Lubricant supply system in the cross section of the core body 2 for the so-called One way operation shown.
- the core body 2 for the one-way operation can be from a also shown in Figure 4a for the local lubricant supply, here underlying neutral position 16 by the twist angle ⁇ to 180 ° accordingly Turn arrow 17 to position 18 infinitely. Simultaneously with it leaves the crowns n are steplessly adjusted between 0 and n.
- FIG. 5a shows a cross section through a roller arrangement comparable the according to the figures 4a, 4b with the difference that here the load case of so-called reversing operation is shown.
- the lubricant to the gap of the load area 15 between the core body 2 and hollow jacket 7 promote.
- Starting from a neutral starting position 19 can be the core body 2 either by the Vercardwinkel Scheme ⁇ from 0 ° to + 120 ° to the position 20 twist or the twist angle range ⁇ of Turn 0 ° to -120 ° to position 21.
- the lubricant flow direction 14a or 14b in the gap of the loading area 29 between the core body 2 and Hollow jacket 7 corresponds in each case to the direction of rotation D or D '.
- FIG 5b is a perspective longitudinal section of the core body 2, the arrangement the Verteilnut 12 with Schmierstoffzu GmbHbohrung 11 and the channels 13 for the Reversing operation shown (see also the section B-B).
- the core body 2 for the Reversing operation is in accordance with the respective direction of rotation D or D 'from the Initial position 19 by the angle of rotation ⁇ up to + 120 ° in the position 20 or in order the twist angle ⁇ up to -120 ° in the position 21 continuously turned. simultaneously
- the crowning n can be steplessly between 0 and n to adjust.
- Figure 6 shows a possible division of the core body 2 in successive Zones 2a to 2g, wherein in each zone a lubricant collecting bag 22a is arranged to 22g, which via return ducts 23a to 23g with a central Lubricant return bore 24, which from all zones the lubricant collects and returns, is connected.
- a lubricant collecting bag 22a is arranged to 22g, which via return ducts 23a to 23g with a central Lubricant return bore 24, which from all zones the lubricant collects and returns, is connected.
- a lubricant collecting bag 22a is arranged to 22g, which via return ducts 23a to 23g with a central Lubricant return bore 24, which from all zones the lubricant collects and returns, is connected.
- In this example were seven zones selected.
- lubricant supply region I minimum core crowning
- the lubricant supply can be realized via a lubricant supply bore 11a to 11g introduced separately for each zone 2a to 2g and for each lubricant supply region I to IV.
- FIG. 8 shows a design of the lubricant disposal deviating from FIG.
- the circumferentially the Schmierstoffzu semiconductor Scheme I to IV of each zone 2a to 2g limiting lubricant collecting pockets 22a to 22g and the recirculation channels 23a to 23g opening therein is a separate one Associated with lubricant return bore 24a to 24g, over which the Lubricant triggered by the superordinate profile and flatness control can be vacuumed separately.
- An embodiment of a storage of the hollow casing roller 1 is in longitudinal section represented by the support roller and a chock 26 in Figure 9. These has on the drive side a thrust bearing 27, a spherical bearing 28, sealing devices 29, a lubricant return bore 30 for returning the after Figures 4a, 4b, 5a and 5b supplied lubricant and a device 31 for deriving the collected in the chock 26 lubricant. Corresponding the operating side, not shown, is configured.
- the back-up roll can be stored fixed on both sides by the thrust bearing 27, at the same time but the core body 2 at its ends 3 due to the spherical bearings 28 rotate and under load.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Friction Gearing (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Description
Somit besitzt der Kernkörper in dem einem Extremfall beispielsweise die Balligkeit 0 (ϕ = 0°) und in dem anderen Extremfall die Balligkeit n (ϕ = 180°). In den Zwischenstellungen liegt die Balligkeit zwischen 0 und n.
- Figur 1
- in perspektivischer Längsansicht einen Kernkörper einer Hohlmantelwalze, mit seitlich nebenan schematisch angedeuteter Schleifscheibe zur Herstellung des Kernkörpers sowie zwei Querschnitten des Kernkörpers;
- Figur 2
- als Einzelheit eines weiter nicht dargestellten Quartogerüstes eine mit einem Kernkörper nach Fig. 1 ausgebildete Stützwalze mit zugeordneter Arbeitswalze, im unbelasteten Zustand;
- Figur 3
- eine Walzenanordnung nach Fig. 2, im belasteten Zustand;
- Figur 4a
- einen Querschnitt durch eine Hohlmantel - Stützwalze die kreisförmige Mitte des Kernkörpers mit einer ersten Ausführung einer Schmiermittelzuführung;
- Figur 4b
- in perspektivischer Längsansicht eine Ausführung eines Kernkörpers für den sogenannten Einwegbetrieb dargestellt mit zwei unterhalb gezeigten Querschnitten;
- Figur 5a
- einen Querschnitt durch eine Hohlmantel-Stützwalze mit einer zweiten Ausführung einer Schmiermittelzuführung;
- Figur 5b
- in perspektivischer Längsansicht als Einzelheit der Figur 5a deren Kernkörper;
- Figur 6
- in der Längsansicht einen Kernkörper mit Zonenaufteilung;
- Figur 7
- im Querschnitt eine Zone nach Figur 6;
- Figur 8
- als Querschnitt eine Zone nach Figur 6 eine andere Schmiermittelentsorgung ;und
- Figur 9
- von einem Ende des Kernkörpers mit Hohlmantelwalze im Längsschnitt die Lagerung.
Claims (6)
- Hohlmantelwalze, die einen um die Mittelachse drehbaren, hydraulisch abgestützten Kernkörper als Gleitlager aufnimmt,
dadurch gekennzeichnet, dass der Kernkörper (2) mit über den Umfang und der Kernballenlänge (4) veränderlichem Ballen ausgebildet ist. - Hohlmantelwalze nach Anspruch 1,
dadurch gekennzeichnet, daß in dem Kernkörper (2) eine Schmiermittelzuführbohrung (11) vorgesehen ist, von der mindestens ein Kanal (13) zu einer auf dem Umfang des Kernkörpers (2) eingebrachten Verteilernut (12) führt. - Hohlmantelwalze nach den Ansprüchen 1 bis 2,
dadurch gekennzeichnet, daß der Kernkörper (2) über seine Kernballenlänge (4) in mehrere Zonen (2a bis 2g) aufgeteilt ist und in diesen Zonen über den Umfang in mehrere Schmiermittelzuführbereiche (I bis IV) unterteilt ist. - Hohlmantelwalze nach Anspruch 3,
dadurch gekennzeichnet, daß der Kernkörper (2) zu jeder Zone (2a bis 2g) und zu jedem Schmiermittelzuführbereich (I bis IV) verlaufende Schmiermittelzuführbohrungen (11a bis 11g) aufweist, denen je ein Kanal (13a bis 13g) zugeordnet ist, der zu einer in jeder Zone (2a bis 2g) und jedem Schmiermittelbereich (I bis IV) auf dem Umfang des Kernkörpers (2) eingebrachten Verteilnut (12a bis 12g) führt. - Hohlmantelwalze nach Anspruch 3,
dadurch gekennzeichnet, daß in jeder Zone (2a bis 2g) der Schmiermittelzuführbereiche (I bis IV) Rückführkanäle (23a bis 23g) vorgesehen sind, die einerseits in Schmiermittelsammeltaschen (22a bis 22g) münden und andererseits an mindestens eine im Kernkörper (2) angeordnete Schmiermittelrückführbohrung (24) angeschlossen sind, wobei sich das Schmiermittel über die Rückführkanäle (23a bis 23g ) und die Schmiermittelrückführbohrung (24) absaugen läßt. - Hohlmantelwalze nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß der Kernkörper (2) in Axiallagern (27) und sphärischen Lagern (28) gelagert ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10039000 | 2000-08-10 | ||
DE10039000A DE10039000A1 (de) | 2000-08-10 | 2000-08-10 | Hohlmantelwalze |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1179373A2 EP1179373A2 (de) | 2002-02-13 |
EP1179373A3 EP1179373A3 (de) | 2004-03-24 |
EP1179373B1 true EP1179373B1 (de) | 2005-06-08 |
Family
ID=7651936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01117980A Expired - Lifetime EP1179373B1 (de) | 2000-08-10 | 2001-07-25 | Hohlmantelwalze |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1179373B1 (de) |
AT (1) | ATE297267T1 (de) |
DE (2) | DE10039000A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013221623A1 (de) * | 2013-10-24 | 2015-04-30 | Robert Bosch Gmbh | Axialkolbenmaschine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57127507A (en) * | 1981-01-30 | 1982-08-07 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling mill |
AT376465B (de) * | 1981-05-06 | 1984-11-26 | Escher Wyss Ag | Walze fuer eine walzvorrichtung |
JPH0299206A (ja) * | 1988-09-30 | 1990-04-11 | Kobe Steel Ltd | 4段圧延機 |
DE19807115C1 (de) * | 1998-02-20 | 1999-09-09 | Schloemann Siemag Ag | Walze |
-
2000
- 2000-08-10 DE DE10039000A patent/DE10039000A1/de not_active Withdrawn
-
2001
- 2001-07-25 EP EP01117980A patent/EP1179373B1/de not_active Expired - Lifetime
- 2001-07-25 AT AT01117980T patent/ATE297267T1/de active
- 2001-07-25 DE DE50106434T patent/DE50106434D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1179373A3 (de) | 2004-03-24 |
EP1179373A2 (de) | 2002-02-13 |
ATE297267T1 (de) | 2005-06-15 |
DE50106434D1 (de) | 2005-07-14 |
DE10039000A1 (de) | 2002-02-21 |
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