FIELD: construction engineering.
SUBSTANCE: invention relates to construction equipment, particularly, to equipment for production of reinforced-concrete articles and to design of concrete placing machines. According to invention, concrete placing machine has power supply system, intake hopper installed for displacement in spatial frame and provided with at least one outlet aperture in bottom and bladed working member, control panel and at least one feeder arranged below corresponding outlet aperture. Feeder is provided with screw-like working member installed in housing enclosing said working member and provided with aperture in form of longitudinal slot made in lower part and overlapped from below in working position by pan, preferably hinged one. Feeder screw is made with length "l" of working zone of additional mixing and delivery of concrete mix found from expression L=(1.0-5.0)L where L is maximum size of section of corresponding outlet aperture of intake hopper in horizontal projection longitudinal in direction of dispensing of concrete mix. Proposed invention improves quality of construction members owing to provision of uniform placing of concrete mix and preventing its separation at simultaneous reduction of power consumption, increased reliability in operation and service life of equipment of concrete placing machine and prevention of failures in operation caused by wedging of screws of concrete placing machine, spontaneous opening of feeder pan and provision smooth controlled movement of concrete placing machine and concrete mix ion screws.
EFFECT: improved quality of construction members.
15 cl, 19 dwg
