EP4100181A1 - Entkoppelte walzanlage - Google Patents
Entkoppelte walzanlageInfo
- Publication number
- EP4100181A1 EP4100181A1 EP21703022.0A EP21703022A EP4100181A1 EP 4100181 A1 EP4100181 A1 EP 4100181A1 EP 21703022 A EP21703022 A EP 21703022A EP 4100181 A1 EP4100181 A1 EP 4100181A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- rolling
- foundation
- plant according
- damping system
- 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
Links
Classifications
-
- 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
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
- B21B31/06—Fastening stands or frames to foundation, e.g. to the sole plate
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/44—Vibration dampers
Definitions
- the invention relates to a rolling plant, in particular a rolling mill comprising at least one rolling stand that is set up on a foundation.
- the invention relates in particular to a cold rolling mill, in particular one which is designed for flexible rolling.
- Rolling plants are usually set up directly on a concrete foundation and fastened in the concrete foundation with anchor bolts. Mass forces and the resulting vibrations are introduced directly into the foundation.
- step rolling mills continuous regulation of the roll gap in the cold rolling process introduces different strip thicknesses in the longitudinal direction with linear, harmonic transitions into the rolling stock. In this way, for example, body panels (tailor rolled blanks) for automobile construction are produced.
- relatively high inertia forces and the resulting vibrations are introduced into the foundation. The vibration excitation of the foundation caused by this causes long-term cracks that impair the load-bearing capacity of the foundation.
- Machine components generate vibrations or structure-borne noise. This
- Vibrations are particularly pronounced in flexible rolling due to the frequent changes in the roll gap geometry. Changes in thickness occur on average 10 times per second, so that the vibration frequency cannot settle at a defined level. The generated vibrations are therefore not constant and do not correspond to the natural frequency of the rolling mill. Conventional measures for damping vibrations in individual components are therefore not sufficient. The noise emissions resulting from the vibrations mean environmental pollution for operating personnel and the environment, which should be limited or preferably prevented.
- the invention is based on the object of reducing the vibration emissions in a rolling mill, in particular in a rolling mill for flexible rolling.
- a rolling mill in particular a rolling mill, comprising at least one roll stand that is set up on a foundation, the rolling mill being characterized in that the roll stand is decoupled from the foundation with at least one spring-damping system.
- the rolling mill according to the invention is preferably designed as a cold rolling mill, reversing stand or as a rolling mill for flexible rolling.
- a rolling mill within the meaning of the present invention comprises at least one rolling mill or at least one rolling stand.
- a rolling mill can comprise several components, for example a reel, shears and the like.
- the spring-damping system of the rolling mill according to the invention is expediently arranged between at least one rolling stand and the foundation of the rolling mill.
- the foundation of the rolling mill can support one or more components of the rolling mill.
- the spring-damping system can be provided, for example, as a strip bearing, point bearing or full-surface bearing between the roll stand and the foundation.
- the spring-damping system comprises an additional flywheel.
- the natural frequency of the spring-mass-damper system can be influenced or adjusted via the additional flywheel
- a base plate is provided as an additional flywheel on which the relevant rolling stand is set up.
- This base plate can be made of cast steel, for example.
- the mass of the additional flywheel so that it corresponds approximately to the mass of the roll stand in order to achieve a desired natural frequency.
- the additional flywheel can for example be in the order of magnitude between 100 and 200 t. This significantly increases the dead weight of the rolling mill and reduces its natural frequency.
- the roll stand can comprise a base which is supported on the foundation via the spring-damping system.
- the base can be designed as a concrete base.
- the additional flywheel can, for example, be supported on the spring-damping system via the concrete base.
- the spring-damping system can comprise a multiplicity of coil springs and a multiplicity of damping elements.
- hydraulic elements such as piston-cylinder arrangements can be provided as damping elements.
- the damping elements can be provided, for example, as visco-elastic spring elements, for example in the form of buffers or cylinders.
- the spring-damping system can comprise at least one thermoplastic material which has both spring properties and damping properties.
- the spring-damping system can for example comprise elements made of a polyurethane material, for example in the form of mats and / or strips.
- the rolling mill comprises at least one step rolling mill.
- the reference numeral 20 denotes a rolling mill which comprises a rolling stand 21.
- the roll stand 21 comprises, in a known manner, two roll stands 22 and vertically adjustable work rolls 23 and support rolls 24, as well as possibly further rolls (not shown).
- the roll stand 21 is shown in the side view. The view shows the operating side of the roll stand 21.
- the roll mill further comprises an inlet-side first flasher 25 and an outlet-side second flasher 26.
- the metal strip wound into a first coil 27 is drawn off from the first flasper 25 and runs through one between the work rolls 23 of the roll stand 21 formed roll gap.
- the finished rolled metal strip is wound up again by the second flasher 26 to form a second coil 28.
- the rolling mill 20 is a rolling mill which is designed for flexible rolling (step rolling mill) of cold strips.
- the metal strip unwound from the first coil 27 is deformed between the work rolls 23 of the roll stand 21 in such a way that continuous regulation of the roll gap results in different strip thicknesses in the longitudinal direction of the metal sheet or the rolled stock.
- the roller stands 22 are anchored on a base plate 29 made of cast steel, which in turn rests on a base 31.
- the base 31 is supported on the foundation 30 via spring damping elements 10.
- the foundation 30 underpins the entire rolling mill 20.
- the spring-damping elements 10 are arranged in the form of a strip bearing under the base 31 and, in the exemplary embodiment shown, only decouple the roll stand. In the context of the invention, however, it can be provided that all components of the rolling mill, including the reels 26, 27, are decoupled from the foundation 30.
- the spring-damping elements 10 comprise a combination of helical springs and damping elements.
- the damping elements can be designed as hydraulic dampers, for example.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020201345 | 2020-02-04 | ||
| DE102020211782.9A DE102020211782A1 (de) | 2020-02-04 | 2020-09-21 | Entkoppelte Walzanlage |
| PCT/EP2021/052422 WO2021156247A1 (de) | 2020-02-04 | 2021-02-02 | Entkoppelte walzanlage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4100181A1 true EP4100181A1 (de) | 2022-12-14 |
| EP4100181B1 EP4100181B1 (de) | 2024-04-24 |
Family
ID=76853547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21703022.0A Active EP4100181B1 (de) | 2020-02-04 | 2021-02-02 | Entkoppelte walzanlage |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4100181B1 (de) |
| DE (1) | DE102020211782A1 (de) |
| WO (1) | WO2021156247A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023102432A1 (de) * | 2023-02-01 | 2024-08-01 | Achenbach Buschhütten GmbH & Co. KG | Walzgerüst und Verfahren zur Herstellung |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2740815C2 (de) * | 1977-09-10 | 1983-06-01 | Walter 3014 Laatzen Battermann | Schwingungsdämpfende Unterlage |
| DE4103941A1 (de) * | 1991-02-07 | 1992-08-13 | Siegmar Augustin | Fundamentsystem und seine verwendung |
| US6648295B2 (en) * | 2001-10-02 | 2003-11-18 | Andrew James Herren | Vibration and sound dampener for heavy machinery |
| US20040261333A1 (en) * | 2002-10-25 | 2004-12-30 | Whittaker Wayne H. | Seismic restraint apparatus |
| CN110355220A (zh) * | 2019-07-12 | 2019-10-22 | 瓯锟科技温州有限公司 | 一种用于金属板材轧制的液态二氧化碳冷却系统 |
-
2020
- 2020-09-21 DE DE102020211782.9A patent/DE102020211782A1/de not_active Withdrawn
-
2021
- 2021-02-02 EP EP21703022.0A patent/EP4100181B1/de active Active
- 2021-02-02 WO PCT/EP2021/052422 patent/WO2021156247A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020211782A1 (de) | 2021-08-05 |
| EP4100181B1 (de) | 2024-04-24 |
| WO2021156247A1 (de) | 2021-08-12 |
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