広い回転比範囲を持つ機械式無段変速機の試作研究

抄録

In mechanical variable-speed drives, the range of revolution ratio is one of the important performances, and it is desirable that the range is as wide as possible. However, among the mechanical variable-speed drives being put in practical use now, those which can change speed steplessly from normal revolution to reverse revolution including zero revolution (stop) are very few. The authors newly devised and manufactured a mechanical variable-speed drive on trial, which has the larger range of revolution ratio and is smaller in size as compared with conventional ones, besides, on the use of which, large limitation is not imposed. This paper deals with the design, trial manufacture, operation test and the derivation of the formula for calculating both the rotating speed and the efficiency of this variable-speed drive, and it was confirmed that this variable-speed drive can be put to practical use, and that the formula derived for calculating the efficiency is sufficiently useful for estimating the efficiency at the time of the design.