EP0337145A2 - Dispositif pour supporter hydrostatiquement les cylindres d'un laminoir - Google Patents

Dispositif pour supporter hydrostatiquement les cylindres d'un laminoir Download PDF

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Publication number
EP0337145A2
EP0337145A2 EP89104651A EP89104651A EP0337145A2 EP 0337145 A2 EP0337145 A2 EP 0337145A2 EP 89104651 A EP89104651 A EP 89104651A EP 89104651 A EP89104651 A EP 89104651A EP 0337145 A2 EP0337145 A2 EP 0337145A2
Authority
EP
European Patent Office
Prior art keywords
roller
support element
pressure medium
shaped recess
support
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.)
Granted
Application number
EP89104651A
Other languages
German (de)
English (en)
Other versions
EP0337145B1 (fr
EP0337145A3 (en
Inventor
Erich Stoy
Hans Römmen
Dieter Rumpf
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 Schloemann Siemag AG
Schloemann Siemag 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 SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT89104651T priority Critical patent/ATE82880T1/de
Publication of EP0337145A2 publication Critical patent/EP0337145A2/fr
Publication of EP0337145A3 publication Critical patent/EP0337145A3/de
Application granted granted Critical
Publication of EP0337145B1 publication Critical patent/EP0337145B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends

Definitions

  • the invention relates to a device for hydrostatic support of rolls of a rolling mill, in particular for direct support of the work rolls of a rolling mill, consisting of support elements arranged in the roll stand, which have shell-shaped recesses on their side facing the roll and which are connected to pressure medium lines.
  • the flow rate of the pressure medium is also dependent on the pressure loads emanating from the work rolls during operation of the rolling mill, which make special variable pump control necessary.
  • the height of the pressure medium flow which is always changed as a function of the work rolls, also has a disadvantageous effect on the cooling of the rolls.
  • special control valves with mechanical buttons placed at both ends of the roller and reducing the roller support surface are required in order to keep the roller in its predetermined target position.
  • the object of the invention is to provide a hydrostatic roller support device which, while avoiding the known disadvantages, in particular enables the available support surface to be used optimally in a simple and particularly economical manner.
  • the cross section of the recess of the support element which is elliptical in cross-section, on the one hand very advantageously enables a pressure medium cushion to be built up between the roller surface and the support element, which, with favorable pressure conditions, ensures the maintenance of sufficiently large gap widths between the roller surface and allows the outer edges of the support element for the outlet of the pressure medium, so that hydraulic centering measures can be dispensed with, and on the other hand allows the elliptical recess of the support element di e Adaptation of the support element to rolls with different roll diameters.
  • each pressure chamber is subjected to different pressure per se and thus the support device can be optimally adapted to the different pressure loads occurring on the work rolls during operation of the rolling mill.
  • hydrostatic support is required the rolls of a rolling mill according to the invention, neither auxiliary supports nor pump control devices are required, since the pressure medium flow can always be kept constant.
  • An intensive, high cooling effect of the rollers is also always achieved by the configuration and arrangement of the support element according to the invention.
  • the locking webs consist of a crescent-shaped elastic material, in particular of plastic.
  • plastics are understood to mean all non-metallic, modern material combinations, in particular also fiber-reinforced plastics, which can be used particularly advantageously in this environment.
  • the locking webs according to the invention are provided with openings for the supply of lubricants in the area between the roller surface and the locking webs. In this way, the service life of the barriers becomes complete significantly increased, and the lubricant can also serve very advantageously as a pressure and barrier medium
  • the locking web is connected to a compression spring. With the help of this compression spring, the locking web is pressed close to the roller surface and held in position so that no pressure medium can get from one pressure chamber into the adjacent pressure chamber between the locking web and the roller surface.
  • the locking webs are arranged in the cup-shaped recess of the support element at an angle of approximately 45 degrees obliquely to the roller axis and to the pressure medium lines several channels arranged in the support element are connected with nozzles which open into the chambers.
  • This inclined arrangement of the locking webs and the nozzles in the support element is advantageously characterized by a particularly good pressure medium distribution in the chambers and protection of the roller surface.
  • three channels with nozzles are arranged in one plane in the support element, the central channel being directed perpendicularly to the roller surface and the two outer channels being directed obliquely outwards to the periphery of the roller surface.
  • the device for the hydrostatic support of rolls of a rolling mill consists of a support element (1) which, according to the invention, extends over the entire length of the roll (2).
  • This support element (1) is firmly clamped in a roll stand, not shown in the drawing.
  • the support element (1) is provided on the inside with a shell-shaped recess (3) which is elliptical in cross section.
  • the support element (1) shown in FIG. 1, which engages the roller (2), makes it very advantageous to use almost 100 percent of the support surface of the support element (1) to support the work roll or any other roll that is used, for example, to support the work rolls , achieved, so that in comparison to known support devices under otherwise identical working conditions of the rolling mill, it is possible to work with up to about 70% less pressure and energy.
  • the pressure medium is fed into the pressure chambers (6) very advantageously via valve-controlled pressure medium supply lines (7), so that the contact pressure in the individual pressure chambers (6) varies and the pressure in each area of the roller can thus be optimally adapted to the requirements. This is particularly important when supporting relatively long work rolls with small diameters (200 mm and less).
  • the locking webs (12) in the bowl-shaped recess of the support element (13) can also very advantageously be arranged at an angle of approximately 45 degrees to the roller axis (14), in such a way that the circumferential direction Seen roller (15), the upper and lower ends of the locking webs (12) overlap.
  • the entire surface of the roller (15) is brought into contact with the pressure medium in the support region of the support element (13), which pressure medium, channels (16) and the nozzles (17) in accordance with the locking webs (12) in the support element (13) are arranged accordingly obliquely.
  • the lubricant is fed into the area between the locking webs (12) and the roller surface in the same way as in the support element (1) shown in FIG. 1, namely through corresponding openings (19) in the support element (13).
  • FIG. 3 shows in cross section and on an enlarged scale
  • three channels (16) with their nozzles (17) for the pressure medium supply into the chamber (18) are each arranged in one plane such that the support element (13) pressure medium supplied from the outside in the direction of the arrow (20) via the nozzles (1) both into the central region and into the edge regions of the crescent-shaped pressure chamber (18).
  • a gap width (21) of between approximately 0.5 and 1.5 mm is expediently maintained between the support element (13) and the roller body (15), as a result of which any inaccuracies are covered or compensated for and hydraulic centering measures can be dispensed with.
  • the support element (13) is firmly clamped to the frame of the roll stand with the help of wedges or the like, so that it is used if necessary can be easily installed and removed or replaced at any time
  • the three channels (16) located in the support element (13) in one plane with the nozzles (17) can be arranged very advantageously and also in such a way that the central channel (16), as in Fig. 3, perpendicular to the Roll surface is directed, whereas, however, the outer channels (16) with their nozzles (17) are directed obliquely outwards to the periphery of the roller surface.
  • a high dynamic centering ability is achieved, in particular due to the inclined position of the nozzles (17), which can very advantageously be designed as flat jet nozzles.
  • the lubricant is introduced via a line (not shown in the drawing) in the direction of the arrow (24) into the channels (25) arranged in the support element (13) under high pressure, from where it passes through the openings (19) into the pocket-shaped facing the roller surface Recess (26) arrives in the barrier web (12).
  • the locking webs (12) according to the invention consist of an elastic material, in particular plastic, and the lubricant is introduced under high pressure between the roller surface and the locking web, sliding friction in the area of the barrier webs is reduced to a minimum.
  • the service life of the barrier webs (12), which can also be easily replaced and renewed at any time, is therefore very long.
  • the measures according to the invention are not limited to the exemplary embodiments shown in the drawing figures.
  • the locking webs within the support element can be in any angular arrangement and can be shaped in any manner, in particular also lie one above the other.
  • the respective structural design is left to the person skilled in the art to adapt to the later use of the device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Crushing And Grinding (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Paper (AREA)
EP89104651A 1988-04-11 1989-03-16 Dispositif pour supporter hydrostatiquement les cylindres d'un laminoir Expired - Lifetime EP0337145B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89104651T ATE82880T1 (de) 1988-04-11 1989-03-16 Vorrichtung zur hydrostatischen abstuetzung von walzen eines walzwerkes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3811952 1988-04-11
DE3811952A DE3811952A1 (de) 1988-04-11 1988-04-11 Vorrichtung zur hydrostatischen abstuetzung von walzen eines walzwerkes

Publications (3)

Publication Number Publication Date
EP0337145A2 true EP0337145A2 (fr) 1989-10-18
EP0337145A3 EP0337145A3 (en) 1990-04-04
EP0337145B1 EP0337145B1 (fr) 1992-12-02

Family

ID=6351710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104651A Expired - Lifetime EP0337145B1 (fr) 1988-04-11 1989-03-16 Dispositif pour supporter hydrostatiquement les cylindres d'un laminoir

Country Status (6)

Country Link
US (1) US4996858A (fr)
EP (1) EP0337145B1 (fr)
JP (1) JP2716517B2 (fr)
AT (1) ATE82880T1 (fr)
DE (2) DE3811952A1 (fr)
ES (1) ES2037299T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6959569B2 (en) * 2002-09-26 2005-11-01 Newfrey Llc Re-keyable lock assembly
US7007528B2 (en) * 2004-04-01 2006-03-07 Newfrey Llc Re-keyable lock cylinder
DE102006049161A1 (de) * 2006-10-18 2008-04-24 Sms Demag Ag Walzgerüst mit Stütz- und/oder Arbeitswalzen zum Walzen von Blechen oder Bändern
CN102615110A (zh) * 2012-04-13 2012-08-01 山西百一机械设备制造有限公司 精密带钢轧机用压辊冷却装置
DE102016122498A1 (de) 2016-11-22 2018-05-24 Sms Group Gmbh Verfahren zur hydrostatischen Abstützung von Arbeitswalzen für das Kaltwalzen hochfester und/oder dünner Bänder

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349699A (fr) * 1964-04-17 Karlstad Mekaniska Ab Dispositif de charge pour cylindres de laminoirs ou calandres
NL6412232A (fr) * 1964-10-21 1966-04-22
FR1445170A (fr) * 1964-08-28 1966-07-08 Siemag Siegener Masch Bau Cage de laminoir équipée de moyens de soutien réglables attaquant la partie de l'enveloppe opposée à l'emprise des cylindres de laminage
DE1811764A1 (de) * 1968-11-29 1970-07-02 Froehling Fa Josef Stuetzgleitlager fuer Walzen
DE2507234A1 (de) * 1975-02-13 1976-08-26 Escher Wyss Ag Walzwerk
JPS5768208A (en) * 1980-10-16 1982-04-26 Kawasaki Steel Corp Rolling mill
JPS5841606A (ja) * 1981-09-03 1983-03-10 Sumitomo Metal Ind Ltd 圧延機のバツクアツプロ−ルの支持方法
JPS6240913A (ja) * 1985-08-15 1987-02-21 Ishikawajima Harima Heavy Ind Co Ltd 圧延機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL134266C (fr) * 1967-02-28
CH613134A5 (fr) * 1976-11-02 1979-09-14 Escher Wyss Ag
US4212504A (en) * 1979-02-26 1980-07-15 Bakanov Anatoly I Backing device for a working roll of a roll stand
IT1177992B (it) * 1984-09-25 1987-09-03 Centro Speriment Metallurg Dispositivo per la regolazione della bombatura dei cilindri in un laminatoio
KR930000465B1 (ko) * 1985-05-17 1993-01-21 가부시기가이샤 히다찌세이사꾸쇼 압연기의 로울냉각장치 및 로울냉각방법
JPS6245409A (ja) * 1985-08-26 1987-02-27 Nippon Kokan Kk <Nkk> ロ−ル冷却機構

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349699A (fr) * 1964-04-17 Karlstad Mekaniska Ab Dispositif de charge pour cylindres de laminoirs ou calandres
FR1445170A (fr) * 1964-08-28 1966-07-08 Siemag Siegener Masch Bau Cage de laminoir équipée de moyens de soutien réglables attaquant la partie de l'enveloppe opposée à l'emprise des cylindres de laminage
NL6412232A (fr) * 1964-10-21 1966-04-22
DE1811764A1 (de) * 1968-11-29 1970-07-02 Froehling Fa Josef Stuetzgleitlager fuer Walzen
DE2507234A1 (de) * 1975-02-13 1976-08-26 Escher Wyss Ag Walzwerk
JPS5768208A (en) * 1980-10-16 1982-04-26 Kawasaki Steel Corp Rolling mill
JPS5841606A (ja) * 1981-09-03 1983-03-10 Sumitomo Metal Ind Ltd 圧延機のバツクアツプロ−ルの支持方法
JPS6240913A (ja) * 1985-08-15 1987-02-21 Ishikawajima Harima Heavy Ind Co Ltd 圧延機

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 11, Nr. 225 (M-609)[2672], 22. Juli 1987; & JP-A-62 040 913 (ISHIKAWAJIMA HARIMA HEAVY IND. CO. LTD) 21-02-1987 *
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 150 (M-148)[1028], 10. August 1982; & JP-A-57 068 208 (KAWASAKI SEITETSU) 26-04-1982 *
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 124 (M-218)[1269], 28. Mai 1983; & JP-A-58 041 606 (SUMITOMO KINZOKU KOGYO) 10-03-1983 *

Also Published As

Publication number Publication date
US4996858A (en) 1991-03-05
DE3811952A1 (de) 1989-10-19
DE58902842D1 (de) 1993-01-14
EP0337145B1 (fr) 1992-12-02
ATE82880T1 (de) 1992-12-15
JP2716517B2 (ja) 1998-02-18
ES2037299T3 (es) 1993-06-16
JPH0215807A (ja) 1990-01-19
EP0337145A3 (en) 1990-04-04

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