Mobile concrete mixer having automatic control

摘要

During the filling of the mobile concrete mixer drum, the motor speed must be set to the maximum value. If the filling takes place batch-wise via 1 m<3> compulsory type mixers, for example, then the vehicle drive or separate drive runs for approximately 5-10 minutes at the hitherto manually set maximum speed. According to the invention, the noise generation, the wear and the energy requirement during filling are reduced in that, immediately after a charge has run in, the idling speed of the drive motor and, synchronously with the latter, a low drum speed is automatically set. The setting of the in each case lower speed is executed, in this arrangement, at the mixing plant 1 or by the operator 18 at a removal conveyor belt 17, via wireless control. Conversely, the rotational speed is automatically raised, under control (for filling). <IMAGE>