Measuring device for measuring a mass flow rate of a material flow, measuring system, dosing system, method for operating a measuring device and method for operating a measuring system

摘要

The invention relates to a measuring device (3, 50, 55) for measuring a mass flow rate of a material stream (48), in particular a bulk material stream, according to the Coriolis principle, comprising a rotatably mounted, bladed measuring wheel (14) for deflecting the material stream (48), a drive shaft (16) for driving the measuring wheel (14), an output shaft (22) rigidly connected to the measuring wheel (14), a bearing sleeve (26) surrounding at least part of the output shaft (22) for rotatably supporting the output shaft (22), a force measuring device (7) and a gearbox (36) comprising a first gear element (37) rigidly connected to the drive shaft (16), a second gear element (38) rigidly connected to the output shaft (22) and an intermediate element (39) for transmission a torque from the first transmission element (37) on the second transmission element (38). According to the invention, the measuring device (3, 50, 55) comprises a rocker (40) rigidly connected to the bearing sleeve (26) on which the intermediate element (39) of the gearbox (36) is mounted, the force measuring device (7) being connected to the rocker ( 40) is connected, so that by means of the force measuring device (7) on the rocker (40) transmitted force is measurable.