ROLLING MILL AND ROLLING MILL TRAIN

Japanese Patent JP3532819

B

PROBLEM TO BE SOLVED: To provide a rolling mill of which the rolling mill and devices around a driving reduction gear connected to the mill can be made compact and angularity on the inside surface of a pipe after rolling is prevented.
SOLUTION: This device consists of plural rolls 1 symmetically arranged around the pass line, a driving bevel gear 4 having a ring shaped large diameter for rotationally driving the rolls 1, an input shaft mechanism 5 for rotating the driving bevel gear 4, plural gear transmission mechanisms 8 arranged at equal intervals in the peripheral direction of the bevel gear 4 and a housing 3 for holding them. The input shaft mechanism 5 consists of one input shaft 6 which penetrates the housing 3 from the outside to the inside, a small diameter input bevel gear 7 which is fixed to the input shaft 6 and engaged with driving bevel gear 4 and the input shaft mechanism 5 is arranged between a pair of gear transmission mechanisms 8, 8 which are adjacent to each other in the peripheral direction. Even when the input shaft 6 is horizontally arranged, the phase angle of the roll is finely variable.

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Ochi, Shigeharu
Fujiwara, Hiroshi
Inui, Akira
Toyooka, Takaaki
Itaya, Motoaki
Yorifuji, Akira
Onishi, Toshio
Sugano, Koji
Nishida, Yasuo
Tanaka, Nobuki

JP2000000061678

March 12, 2004

March 07, 2000

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SUMITOMO HEAVY IND LTD
KAWASAKI STEEL CORP

B21B27/02; B21B13/00; B21B13/10; B21B13/12; B21B31/02; B21B35/12; B21B35/14; B21B1/18; B21B17/14; B21B27/02; B21B13/00; B21B31/00; B21B35/00; B21B1/16; B21B17/00; (IPC1-7): B21B13/12; B21B13/00; B21B31/02; B21B35/14

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