Width-adjusting device for conveyor corridor(s)

A method for assembling a width-adjusting device for corridor(s), comprising

• a mechanism with high gear reduction integrally attached to a chassis of said conveyor, said mechanism being arranged between a control shaft and a wall or walls of said corridor and comprising:
• a final drive offering irreversible operation, comprising:—said control shaft in the form of a first endless screw, and—a toothed wheel,
• a maneuvering system for maneuvering at least one of the walls of said corridor, comprising a second endless screw and a nut, said second endless screw being mobile or fixed relative to said toothed wheel,
• said final drive comprising a flexible control shaft and said toothed wheel engages in a gearbox and, between two consecutive gearboxes, said flexible control shaft is housed in a guiding protective cover, said cover having ends fitted into and/or attached to said corresponding gearboxes,
• said gearbox comprising:
• two half-shells machined and intended to be attached to said chassis of the conveyor,
• a substantially cylindrical housing delimited by said half-shells when they are assembled, said housing being occupied by said toothed wheel,
• a passage calibrated for said flexible control shaft and arranged in each of said half-shells, said calibrated passage being positioned orthogonally to an axis of said housing and tangential to said housing to allow the operation of said final drive and,—said half-shells comprise cylindrical projections to guide and cover the threading of said second endless screw for maneuvering said wall(s), of the corridor(s) onto a single row or multi-row conveyor, said method comprising:
• attaching one of said half-shells of each gearbox onto said chassis of said conveyor,
• sizing said covers which extend between two gearboxes and slipping them onto the corresponding portion of said flexible control shaft,
• placing in one of said half-shells said final drive comprising said flexible control shaft and said toothed wheel with said corresponding covers,
• closing each gearbox by attaching the other half-shell to said half-shell already in place, and
• connecting said flexible control shaft to a motor.