MIXER TRUCK Russian patent published in 1998 - IPC

FIELD: construction, particular, devices for preparation and transportation of concrete mixes. SUBSTANCE: the offered mixer truck consists of vehicle 1 carrying rotating mixing drum 2 with bottom 3, loading hole 4 and spiral paddles 5 secured to its walls and forming spiral coil. Installed coaxially to mixing drum 2 is shaft 6 with rigidly attached spiral paddles 7. Secured to shaft 6 connected to engine 8 and reducing gear 9 is sun wheel 10 of planetary gear 11 whose crown wheel 12 is mounted on mixing drum 2. Satellites 13 freely mounted on axles 14 of carrier 15 are meshed with sun wheel 10 and crown wheel 12. Carrier 15 is rigidly connected with pulley of brake 16 and installed on shaft 6 for rotation. EFFECT: higher efficiency of operation of mixer truck due to forced counterrotation of mixing drum and paddle shaft in mixing of concrete mix. 2 dwg