Mixing drum drive ring

B - Operations – Transporting – 28 – C

Patent

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Details

B28C 5/38 (2006.01)

Patent

CA 2535772

A composite, heavy duty rotary concrete mixing drum (16) for coupling to a vehicle having a drivetrain (18) for rotating the drum (16) comprises a wall and a drive ring. The wall defines a first end of the drum and a second end of the drum. The drive ring (39) is coupled to the first end of the drum and includes a hub (108, 252) and a plurality of extensions (110, 254). The hub is operatively coupled to the drivetrain. The plurality of extensions (110, 254) extend outwardly from the hub (108, 252) into the wall of the drum. At least one of the extensions includes an aperture (121, 126) extending therethrough. Rotation of the hub by the second drivetrain causes rotation of the drum.

L'invention concerne un tambour malaxeur (16) rotatif composite destiné au béton et à coupler à un véhicule ayant une transmission (18) destinée à la rotation du tambour (16), ce tambour malaxeur comprenant une paroi et un anneau de commande. La paroi définit une première extrémité du tambour et une deuxième extrémité du tambour. L'anneau de commande (39) qui est couplé à la première extrémité du tambour, comprend un moyeu (108, 252) et une pluralité d'extensions (110, 254). Le moyeu est opérationnellement couplé à la transmission. La pluralité d'extensions (110, 254) s'étend vers l'extérieur du moyeu (108, 252) dans la paroi du tambour. Au moins une extension comporte une ouverture (121, 126) traversante. La rotation du moyeu par la deuxième transmission entraîne la rotation du tambour.

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