Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 08, 2024 - September 11, 2024
Chains are used in the case of difficult to transmit rotation or torque using friction wheels or gears over long distances between two axes. However, drawbacks such as decreased transmission efficiency due to friction, wear, vibration and noise, in addition elongation for wear occur under transmit conditions of high loads and high speeds. Previous studies have shown that the viscosity of lubricating oil affects the temperature rise of chains. It is believed that the formation of oil film between pin and bush is related. Therefore, this study evaluated differences in lubricating oil viscosity affect the wear of chains, focused on temperature rise of chain and wear of pin. Based on the experimental results, effect of lubricant viscosity on the wear characteristics of chains were discussed. From these discussions, it seems reasonable to conclude: (1) It was cleared that the temperature rise of chain was higher and the amount of wear increased with low viscosity oil compared to high viscosity oil. (2) The oil film thickness formed between pin and bush changes depending on the difference in the lubricant viscosity and the rotational speed of chain, and affects the frictional state during operation.
