Drive system for axial adjustment of the first intermediate roll

Details Drive system for axial adjustment of the first intermediate roll Drive system for axial adjustment of the first intermediate roll

1998-12-22

1999-11-30

Hail, III, Joseph J.

Metal deforming

By use of roller or roller-like tool-element

With carrier for roller-couple or tool-couple

722424, B21B 3107

Patent

active

059922028

ABSTRACT:
A drive assembly for axially adjusting at least one roll of the upper and lower pairs of first intermediate rolls of a cluster mill of the 20-high (1-2-3-4) type. The drive comprises a first horizontally oriented rack connected to one of the first intermediate rolls by a link and universal joint assembly. As least one idler gear, with its axis horizontally oriented, is meshed with the first rack. A second rack horizontally oriented is affixed to the piston of a horizontally oriented hydraulic cylinder. The second rack and the hydraulic cylinder are in parallel spaced relationship to the first rack. The second rack is meshed with the at least one idler gear so that axial movement of the piston and second rack in the hydraulic cylinder will result in axial movement of the first rack via the at least one idler gear to axially shift the at least one roll. Such a drive can have its first rack attached to a pair of rolls by a universal joint assembly and a link for each roll so that the drive can simultaneously axially shift both rolls. Four such drives can each be used to axially shift the four first intermediate rolls independently. In any of the embodiments the second rack may have a piston at both of its ends in its hydraulic cylinder so that the effective piston areas are the same in both directions of movement.

REFERENCES:
patent: 2169711 (1939-08-01), Sendzimir
patent: 2187250 (1940-01-01), Sendzimir
patent: 2479974 (1949-08-01), Sendzimir et al.
patent: 2776586 (1957-01-01), Sendzimir
patent: 4289013 (1981-09-01), Hunke
patent: 4805433 (1989-02-01), Rennebaum
patent: 5131252 (1992-07-01), Turley et al.
patent: 5666844 (1997-09-01), Bieber

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