Comparative Experimental Study on Noise and Vibration Level of Gearbox with Worm Face-Gear with Reverse Tapered Pinion

摘要

This paper presents some comparative aspects obtained on an experimental basis, on the determination of noise and vibration level in the operation of a gearbox with worm face-gear with reverse tapered pinion for a pair materials of steel-bronze, steel-gray cast iron and steel-polyamides, oil lubricated T90EP2, with 1:47 transmission ratio. The worm face-gear with reverse tapered is less known and attempts should be carried out to reveal how they conduct the operation and how performance is achieved. In the experiments we used an Archimedes worm with nitrided steel sides finished by fine turning. The conjugate tooth of wheels was obtained by hob-cutter milling. The noise and vibration level measurements were made on a scale of 10 levels in the range 0-115.77 Nm on a bench equipped with electromagnetic powder brake, separate flank the 10° and then 30° for each couple of material. Gearbox which has the gear structure is made of cast iron casing.