Method and system of measuring rotary torque and axial push of rotating shafts of machines and installations

摘要

The method and system measure the rotary moment and the axial force on rotating shafts of machines and systems. The rotary moment or torque and the axial push are measured not at the driving shaft itself but at a measuring shaft driven by the driving shaft. Preferably the driving shaft drives the measuring shaft in a slip free manner using two toothed wheels arranged spaced along the length. Thus a rotation of the drive shaft is transferred to the measuring shaft with a transfer ratio of the teeth engagement. Alternatively the measuring shaft is driven by saw tooth wheels such that rotation of the drive shaft leads via axial tooth force to a change in length of the measuring shaft.