Weighing machine e.g. precision or analysis weighing machine, for adjustment function of e.g. direct current motors, has drive dog whose end is swung in closed path and is pressed against drive unit in periodical manner

摘要

The machine has an adjustment unit that is driven by a piezo drive (3`), where the piezo drive has a drive dog (5) that is displaced into oscillations by a piezo ceramic (4). A drive end (9) of the drive dog is swung in a closed path and is pressed against a drive unit in a periodical manner, where the drive unit is adjustable by the drive end of the drive dog. The drive unit is designed as a drive wheel that is rotatable about a wheel axis.