The invention provides a shaftless, spiral and automatically-mixing concrete stirring and conveying
machine and relates to the technical field of concrete stirring and conveying equipment. The shaftless, spiral and automatically-mixing concrete stirring and conveying
machine comprises a conveying and stirring main
drive shaft and a conveying and stirring driven shaft which are parallel to each other, and the conveying and stirring shafts are each provided with a feeding segment and a stirring and mixing segment from the head end to the
tail end in the conveying direction; a shaft body, at the position of the feeding segment, of the conveying and stirring main shaft is provided with a spiral sand feeding spiral piece, the heal end of the conveying and stirring driven shaft is provided with the corresponding feeding segment in the conveying direction, a shaft body, at the position of the feeding segment, of the conveying and stirring driven shaft is provided with a
cement feeding spiral piece, and the two feeding spiral pieces are contrary to each other in the turning direction as well as the rotation direction; shaft bodies, at the stirring and mixing segments, of the two conveying and stirring shafts are provided with hollow and shaftless big spiral pieces, and inner
diameter spaces of the stirring big spiral pieces are provided with stirring small spiral pieces contrary in turning direction. By means of the shaftless, spiral and automatically-mixing concrete stirring and conveying
machine, stable and precise mixing and reciprocating
slurry stirring can be achieved, stirring can be more sufficient, efficiency is higher, and the shaftless, spiral and automatically-mixing concrete stirring and conveying machine is suitable for application and popularization.