B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
B21B 37/00 (2006.01) B65H 23/04 (2006.01) B65H 23/26 (2006.01) B65H 27/00 (2006.01) F16F 15/12 (2006.01) F16F 15/121 (2006.01) F16F 15/126 (2006.01) F16F 15/22 (2006.01) F16F 15/315 (2006.01) B21B 37/48 (2006.01) B21B 39/00 (2006.01) B21B 39/08 (2006.01)
Patent
CA 2431452
Apparatus and method for reducing vibration in a mill stand. The apparatus comprises a roll (4) positioned upstream or downstream of the mill stand (1) and over which the strip material (2) being rolled is passed. The vibration control apparatus comprises an inertia element in the form of a flywheel (7) connected to the roll (4) by a stiffness element in the form of a compliant shaft (6). The components (6) and (7) form a mechanical system which can be tuned in such a way as to introduce a speed fluctuation at the roll (4) which exactly matches the speed fluctuation of the strip material as it enters the roll bite. Both the inertia element (7) and stiffness element (6) can take other forms: for example, the stiffness element could be a flexible drive belt or belts; the inertia element could be a shaft about which the roll (4) rotates, via a stiffness element.
L'invention porte sur un appareil et un proc~d~ de r~duction des vibrations d'un laminoir. L'appareil comporte un rouleau (4) plac~ en amont ou en aval du laminoir (1) et sur lequel passe le mat~riau en bande (2) ~ laminer. L'appareil de r~duction des vibrations comporte un ~l~ment inertiel en forme de volant (7) reli~ au rouleau (4) par un ~l~ment tenseur consistant en un arbre souple (6). Les ~l~ments (6) et (7) forment un systme m~canique r~gl~ de manire ~ cr~er dans le rouleau (4) une fluctuation de vitesse correspondant exactement ~ celle du mat~riau en bande passant sur la surface de prise du rouleau. L'~l~ment inertiel (7) ainsi que l'~l~ment tenseur (6) peuvent prendre d'autres formes: par exemple l'~l~ment tenseur peut consister en une ou plusieurs courroies flexibles, et l'~l~ment inertiel, en un arbre autour duquel tourne le rouleau (4) via un ~l~ment tenseur.
Alcan International Limited
Kirby Eades Gale Baker
Novelis Inc.
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