CONCRETE MIXING DRUM FIN STRUCTURE

摘要

A dual spiral mixing fin assembly adapted to mix and guide material contained in a rotatable mixing drum of a type used in a transit concrete vehicle mixing system, the assembly includes dual spiral mixing fins extending transversely along a drum mixing space attachable to the inner surface of a mixing drum. The fins are provided with a plurality of spaced large openings for allowing mixed concrete and charged ingredient materials to migrate along a drum mixing space through the openings in both a forward and rearward direction. The fins also have a plurality of spaced small openings that accommodate the passage of cleanout materials along a drum mixing space. A plurality of strut members are attached to forward portions of the mixing fins and adapted to be fixed to the front interior surface of a mixing drum.

主权项

1. A dual spiral mixing fin assembly adapted to mix and guide material contained in a rotatable mixing drum of a type used in a transit concrete vehicle mixing system, the assembly comprising:
(a) dual spiral mixing fins extending transversely along a drum mixing space attachable to the inner surface of a mixing drum; (b) wherein the dual spiral mixing fins comprise a plurality of spaced large openings for allowing mixed concrete and ingredient materials to migrate along a drum mixing space through the openings in the fins in both a forward and rearward direction; (c) wherein the dual spiral mixing fins further comprise a plurality of spaced small openings that accommodate the passage of cleanout materials along a drum mixing space; and (d) a plurality of strut members attached to forward portions of the mixing fins and adapted to be fixed to the front interior surface of a mixing drum.