THROWING ARRANGEMENT FOR PLACEMENT AND COMPACTION OF CONCRETE AND OTHER BUILDING MIXES Russian patent published in 2003 - IPC

FIELD: construction, applicable for placement with compaction of building mixes in massifs. SUBSTANCE: the throwing arrangement has two blade rotors mounted on a frame, and a loading appliance. Each rotor is made in the form of a group of shaped disks with cavities in the form of arcs made at the edges of the disks in the whole circle, the disks are fitted on the drive shaft equally spaced so that the extreme disks bear against the hubs and are fastened on the shaft by nuts with a right-hand and left-hand thread. The disks are turned in such a way that the cavities form even rows directed in parallel with the generating line. Installed in the rows are tubular members made of elastic material with clamp rods inserted inside, their diameter makes up 0.7 to 0.9 of the inside diameter of the members. The tubular members consist of a body blanked off by flanges and are provided with adapters bolted to the hubs, the rotors are installed on the frame so that they are permanently engaged by means of the tubular members and linked by means of a gearing, whose number of teeth is taken to be multiple of the number of the tubular members, and the gear ratio equals unity. EFFECT: enhanced capacity, improved process of readjustment and servicing. 5 cl, 8 dwg