B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/17
B21B 17/00 (2006.01) B21B 35/02 (2006.01)
Patent
CA 1091960
ABSTRACT The present invention relates to a device for controlling the rotation of the working rolls in a tube rolling mill of the kind comprising a number of housings, each containing three working rolls mounted equiangularly about a common axis of the housings on a single bearing structure, the rolls in each housing being keyed to corresponding shafts controlled from outside the housing and actuated by a single motor. The device utilizes three high-speed shafts bearingly mounted outside the housings in the rolling mill and extending parallel to the common axis of the housings; a reduction gear for each working roll of each single housing, borne outside the housing and axially engageable or disengageable from the corres- ponding shaft of the aforementioned roll a bevel gear between each reduction gear and one of the high-speed shafts; and a kinematic transmission between the single motor and each high-speed shaft. The resulting structure permits a reduction in the distance between the axis of adjacent housings; eliminates the need for high torque components; permits the use of more standards, readily available components; and permits a sizable reduction in the size and weight of the driving mechanism.
315125
Cattaneo Filippo
Corolla Rosolino
Innocenti Santeustacchio S.p.a.
Macrae & Co.
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