WO2000033987A1 - Dispositif de commande pour cage de laminoir - Google Patents

Dispositif de commande pour cage de laminoir Download PDF

Info

Publication number
WO2000033987A1
WO2000033987A1 PCT/DE1999/003753 DE9903753W WO0033987A1 WO 2000033987 A1 WO2000033987 A1 WO 2000033987A1 DE 9903753 W DE9903753 W DE 9903753W WO 0033987 A1 WO0033987 A1 WO 0033987A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
toothed
teeth
work
roll stand
Prior art date
Application number
PCT/DE1999/003753
Other languages
German (de)
English (en)
Inventor
Konrad Thiele
Original Assignee
Siemens Aktiengesellschaft
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
Priority claimed from DE19911751A external-priority patent/DE19911751C1/de
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2000033987A1 publication Critical patent/WO2000033987A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/12—Toothed-wheel gearings specially adapted for metal-rolling mills; Housings or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/02—Roll dimensions
    • B21B2267/06—Roll diameter
    • B21B2267/065—Top and bottom roll have different diameters; Asymmetrical rolling

Definitions

  • the invention relates to a drive device for a roll stand with two work rolls, the drive device having a worm gear type gear with at least two toothed rolls, one of which can be coupled to a work roll of the roll stand.
  • Rolling mills in particular hot-rolling finishing mills, are often equipped with roll stands, the work rolls of which are driven by a motor via a worm gear.
  • Exemplary designs of worm gear drives can e.g. from the book "Rolling Mills, Machines and Plants", 1st Edition, Leipzig, VEB German Publishing House for Basic Industry, in particular pages 291 to 293. It has been shown that vibrations, so-called chatter vibrations, can occur with such drive systems, especially with large degrees of thickness reduction. As a result of these chatter vibrations, different wear occurs on the surfaces of the work rolls. This is again with, in part. significant loss of quality associated with the rolling stock.
  • a drive device for a roll stand with two work rolls has a worm gear-like gear with at least two toothed rolls, one of which can be coupled to a work roll of the roll stand, the toothed rolls having a different number of teeth.
  • chatter vibrations are prevented or significantly reduced.
  • Under worm gear gear is in to understand essentially a gear that largely corresponds to a worm gear, but it is contrary to the version, such as in the book "Rolling Mills, Machines and Plants", 1st Edition, Leipzig, VEB German Publishing House for Basic Industry, in particular pages 291 to 293 has a different number of teeth.
  • the number of teeth of one toothed roller is at least 2, advantageously 1, larger than the number of teeth of the other toothed roller.
  • the work rolls have different diameters.
  • the diameters of the work rolls in a particularly advantageous embodiment of the invention satisfy the equation
  • Z u is the number of teeth of the toothed roll for the lower work roll
  • Z 0 is the number of teeth of the toothed roll for the upper work roll
  • ⁇ is -0.02 to 0.02, advantageously -0.01 to 0.01, particularly is advantageously 0.
  • FIG. 1 shows a drive system of a rolling stand based on a worm gear transmission
  • FIG. 2 shows a rough representation of a worm gear transmission
  • 1 shows a drive system of a roll stand 7 based on a worm gear transmission 3.
  • reference numerals 4 and 5 denote the work rolls and reference numerals 8 and 9 the support rolls of the roll stand 7.
  • An electric motor 1 is provided which is connected via a shaft 2 to the worm gear transmission 3 is connected.
  • the comb-roller-type gear 3 is in turn connected to the work rolls 4 and 5 of the roll stand 7 via two shafts 10 and 11.
  • the worm gear transmission 3 has a toothed roller 15 which is connected to the shaft 10, a toothed roller 17 which is connected to the shaft 2, and a toothed roller 16 which is connected to the shaft 11.
  • the toothed roll 15 is thus provided for driving the upper work roll 4 and the toothed roll 16 for driving the lower work roll 5.
  • Diameters D u and D c of the work rolls 5 and 4 satisfy the equation DZ o, where
  • D u the diameter of the lower work roll 5 D 0 is the diameter of the upper work roll 4.
  • ⁇ is equal to -0.02 to 0.02, in particular -0.01 to 0.01, advantageously 0.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

Dispositif de commande pour cage de laminoir (7) comprenant deux cylindres moteurs (4, 5), caractérisé en ce qu'il présente une transmission du type à entraînement à pignons à chevrons (3) comportant deux rouleaux dentés (15, 16), chacun de ces derniers pouvant être accouplé avec chacun des deux cylindres moteurs (4, 5) de la cage de laminoir (7), et en ce que les rouleaux dentés (15, 16) présentent un nombre de dents différent.
PCT/DE1999/003753 1998-12-08 1999-11-25 Dispositif de commande pour cage de laminoir WO2000033987A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19856437 1998-12-08
DE19856437.6 1998-12-08
DE19911751A DE19911751C1 (de) 1998-12-08 1999-03-16 Antriebseinrichtung für ein Walzgerüst
DE19911751.9 1999-03-16

Publications (1)

Publication Number Publication Date
WO2000033987A1 true WO2000033987A1 (fr) 2000-06-15

Family

ID=26050613

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/003753 WO2000033987A1 (fr) 1998-12-08 1999-11-25 Dispositif de commande pour cage de laminoir

Country Status (1)

Country Link
WO (1) WO2000033987A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110038903A (zh) * 2018-01-17 2019-07-23 宝山钢铁股份有限公司 一种轧机机架辊传动装置
US11992586B2 (en) 2018-03-12 2024-05-28 Koninklijke Philips N.V. Breast shield arrangement for a breast pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924983C (de) * 1952-05-31 1955-03-10 Boehler & Co Ag Geb Kammwalzengeruest

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924983C (de) * 1952-05-31 1955-03-10 Boehler & Co Ag Geb Kammwalzengeruest

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110038903A (zh) * 2018-01-17 2019-07-23 宝山钢铁股份有限公司 一种轧机机架辊传动装置
US11992586B2 (en) 2018-03-12 2024-05-28 Koninklijke Philips N.V. Breast shield arrangement for a breast pump

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