Measuring Apparatus of Cutting Resistance on the Ensilage Cutter

Abstract

We can find the cutting energy of cutteres by measurement of the reduce of the fly-wheel's revolution, under a free revolution of it. So we measured number of the revolution of the flywheel with the next method.
When a photo-electric tube was exposed to the light through the exactly same interval holes was oponed the disc plate that was fixed on the main shaft of the cutter, the alternating current voltage with cycle proportional to the revolution of the knife was generated. Next stage, this generated voltage was lead to the circuits of a oscillation after through two step amplifires. Then, we took photographs of the variation of this oscillating voltage that was appeared on the oscillograph.
We adjusted the moment of inertia of the flywheel, so as to reduce the R. P. M. about 30-20% when finished the cutting, and could measure the cutting resistance under to 300 R. P. M. from 100 R. P. M. In addition, the generated cycles of this apparatus was to 1200c/s from 400c/s.