| 摘要 |
The present invention relates to a mixer for concrete and similar mixtures, of the type composed of a parallelepiped tank (2) internally provided with one or more mixing shafts (3), each of them driven into rotation by a corresponding motor unit (UM) in external position with respect to the tank (2), which comprises, with the necessary connections, an electric motor (4), a gear motor (6) and a cascade of intermediate and reducing gears interfaced with the end of the corresponding mixing shaft (3), characterized by the fact that it is provided with a low-power auxiliary motor (10) connected with the main motor (4), designed to be actuated to drive into very slow rotations the mixing shaft, associated to the main motor (4) during the internal cleaning operations of the tank (2). |
