FIELD: building industry; construction engineering.
SUBSTANCE: the invention is pertaining to the field of the construction engineering and, in particular, to the equipment for production of the reinforced concrete products and to the designs of the concrete placers. The concrete placer according to the invention, contains: the hydraulic system; the receiving hopper mounted on the installed with the relocation capability special frame and having at least one outlet opening in the bottom; the blade operational tool, the control panel; at least one arranged below the corresponding outlet opening feeder. The feeder has the operational tool made in the form of the feed screw, which is mounted in the enveloping it body made in the lower part with the opening in the form of the longitudinal slit overlapped from below in the operation position by the tray preferentially by the convertible driven tray. At that the feed screw of the feeder has the operational zone of the length l for additional stirring and feeding of the concrete mixture defined by the dependence l=(l.0-5.0)L, where L is the greatest in the horizontal projection longitudinal along the run of dispensation of the concrete mixture dimension of the cross-section of the appropriate outlet opening of the receiving hopper. The technical result of the invention consists in the improved quality of the produced constructional structures due to the increased uniformity of the concrete laying and elimination of its delamination at simultaneous reduction of the power input and increased reliability of operation and the service life of the concrete placer mechanisms, as well as the reduced accident rate in operation due to due to elimination of the possibility of the jams of the feed screws of the concrete placer and the spontaneous opening of the tray of its feeder and provision of the smooth controlled motion of the concrete placer and the concrete mixture in the feed screws.
EFFECT: the invention ensures the improved quality of the manufactured constructional structures, reduction of the power input, the increased operational reliability and the service life of the concrete placer mechanisms, the decreased accident rate at operation, provision of the smooth controlled motion of the concrete placer and the concrete mixture laying by the feed screws.
15 cl, 19 dwg
