はすば歯車の摩擦損失と歯の温度上昇に関する研究

抄録

Improvement of the load-carrying characteristics of helical gears is one of the most important problems today. But the experimental results of these kinds of studies are comparatively scarce. For this purpose, we took up the subject of the frictional loss and the temperature rise of the teeth of the helical gears. Considering these situations, we studied the frictional loss of helical gears as a function of many factors, i.e., helix angle. sliding velocity of tooth surface, load, viscosity of lubricating oil and chemical construction of lubricating oil. The frictional loss grade of the helical gears decreases with increasing sliding velocity and viscosity of lubricating oil and increases with the helix angle and load. Further the frictional loss grade is very low when the synthetic oil is used. Finally, the relationship between the temperature rise of teeth and frictional loss was expressed with an empirical formula.