Calculation for contact fatigue strength of roller gear transmission

  • Vũ Lê Huy

Abstract

Roller gear transmisson is a new transmission type, which has much applicability but rarely literatures researchmg deeply this transmission, especially about its strength. As many other toothed gear transmissions, the essential surface failures in roller gear transmission has cause from surface stress produced by the repeated application of load. Based on the design method of spur gear in contact fatigue strength, this paper introduces the establishment of a calculation method to exam the surface fatigue strength of roller gear transmission based on Hertzial formula. Then, the established examination formula as well as the design formula hel{>s to evaluate the main parameters and dimensions of roller gear transmission in contact fatigue strength. The formulae were applied to calculate and design the roller gear transmissons in (he reducers of Sunnitomo manufacturer. The calculation results showed that the main dimensions of the newly designed transnndssons and Sumitomo’s transmissions are equivalent, and therefore they show the correctness and applicability of the established formulae to design new roller gear transmissons.

điểm /   đánh giá
Published
2017-09-28
Section
Articles