Affiliation:
1. Wroclaw University of Technology
Abstract
The references concerning the strength analysis of gears include a few methods of calculating the value of the face load factor (KHβ). In the paper, discussed are the C2 ISO method [1, 2, 3] and a method presented in [4, 5]. The two methods differ mainly in the way the bending and torsional deformations in the shafts and gears are calculated. On the example of the calculations of the first stage in a two-stage helical gear presented schematically in Fig.1, the influence of the these two different approaches on the value of the safety factors for pitting (SH) and tooth breakage (SF) has been analysed. The influence of four accuracy classes used in the manufacture of gearing (5, 6, 7 and 8) on the value of the safety factors SHand SF has also been evaluated.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference6 articles.
1. PN-ISO 6336-1: 2000, Calculation of load capacity of spur and helical gears Part 1: Basic prin- ciples, introduction and general influence factors [in Polish].
2. PN-ISO 6336-2: 2000, Calculation of load capacity of spur and helical gears Part 2: Calculation of surface durability (pitting) [in Polish].
3. PN-ISO 6336-3: 2001, Calculation of load capacity of spur and helical gears Part 3: Calculation of tooth bending strength [in Polish].
4. A. Dziama, M. Michniewicz, A. Niedźwiecki, Gears, PWN, Warszawa, 1989 [in Polish).
5. M. Maziarz, S. Kuliński, Durability Calculations of gears according to ISO standards, AGH Kraków, 2005 [in Polish].