Vibration Characteristics and Surface Durability of Non-Involute Helical Gears(Machine Elements, Design and Manufacturing)

Abstract

We designed and made two non-involute helical gears to obtain high performance. One has an involute-cycloid composite tooth profile and the other has a modified cycloid tooth profile. Using these non-involute helical gears, we measured the circumferential vibration acceleration of the helical gears, the tooth root stress, and the transmission error on running tests. The experimental results showed that the vibration characteristics of the non-involute helical gears do not differ from those of an involute helical gear. Furthermore, our pitting test results show that the surface durability of the non-involute helical gears is superior to that of the involute helical gear.