Finishing monoblock with optimized transmission ratio for billet mill.

摘要

Finishing monoblock with a ratio of optimized transmission for a billet mill comprising a plurality of at least eight rolling stands (GI - Gn) where n = 8 or n = 10, arranged in sequence to form a line mill and driven by a pair of mechanical transmissions (11, 12), boxes laminator (GI - Gn) are alternately sent by transmissions (11, 12), the first transmission (11) commands the odd cages, while the second transmission (12) commands the even cages, characterized in that the transmission ratio is obtained by combining a first type of bevel gear pairs (a, B), and a second type of bevel gear pairs (C, D ), with a first set of four gears (17) and a second series of four gears (19), the first set of four gears (17) and the second set of four gears (19) have a different relationship and such relationship is suitable for creating a network uction by itself to eliminate the need for a reduction of the size of each bevel gear pair so that six boxes laminator (GI - Gn) have bevel gear pairs (C, D) of the same dimension, while a pair of bevel gears having a relationship for four boxes keeping the contrary in the group of the other two boxes laminator without reversing the propeller is used.