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US 4,903,518 AGranted
Roll driving apparatus for rolling mill
AssigneeHitachi, Ltd.
InventorsTomoaki Kimura, Teruo Sekiya
Life of this patent
Estimating the term…
Abstract
A driving apparatus in which power of a single motor is distributed to two shafts by a cam roller, whereupon the power quantities of the respective shafts are transmitted to working rolls through speed reducers. By employing planetary reduction gears of the inner gearing type as each of the speed reducers, it is permitted to transmit a great torque with small gears.
Claims5
A roll driving apparatus for a rolling mill having a pair of working rolls and a plurality of support rolls, comprising:
- a single motor for driving a plurality of the rolls, a pair of spindles connected with a pair of said rolls, a cam roller for distributing power from the motor to the pair of spindles and a pair of speed reducers disposed on the respective driving shafts for torque intensification;
- and
- each said speed reducer having an inner gearing type planetary reduction gear and a casing respectively, said casing of the planetary reduction gear being fixed for rotation therewith.
Dependencies are inferred from the claim text.