CONCRETE MIXER Russian patent published in 2004 - IPC

FIELD: building equipment, particularly for building mixture preparation. SUBSTANCE: mixer comprises mixing drum mounted on frame by support arc- shaped members having horizontal and inclined support surfaces. Mixing drum has drive for rotation thereof and loading-unloading orifice. Drum additionally comprises shaft connected to bottom inside surface and holders joined to outside bottom surface. Inclined and horizontal surfaces are joined one to another by circular parts such that circular part connecting inclined support surfaces form curved arc above loading-unloading orifice and spaced a distance from loading-unloading orifice. Plate fixed to curved arc apex engages drum shaft by support bearing to which plate is detachably connected. Drum drive is electric motor having reducer and coupling installed on motor shaft and detachably connected to drum holders. Frame includes two L-shaped members connected one to another in upper parts thereof by bridge. L-shaped members are spaced apart and distance between L-shaped members is sufficient for reducer location in-between. L- shaped members are supported by cross-bar connecting horizontal support surfaces and curved part between support surfaces. Arc-shaped members are spaced a distance from drum which is sufficient for drum rotation. EFFECT: enhanced usability and increased reliability. 6 cl, 1 dwg