ゼロスピンディスクを用いたシャフトドライブCVTのパワーウェイトレシオ向上 : 第1報,ディスク形状の提案と最適設計(機械要素,潤滑,工作,生産管理など)

概要

論文の詳細を見る
The novel mechanism CVT (Shaft Drive CVT, S-CVT) was developed by the authors. The improvement of power to weight ratio, namely the increase of transmitted power with downsizing and lightening of the transmission is important applying the S-CVT to automobiles. The concave disk/roller to reduce the slip ratio were devised and their effect to improve the efficiency was confirmed by the experiment, but the contact pressure was a little large and limited the torque capacity. The new curved disk/roller named the zero-spin disk/roller was devised in this paper. The spin decreased to less than 0.9% at all speed ratio and the contact pressure was also decreased comparing with the concave one. The optimum design of zero-spin disk/roller to satisfy the torque capacity of 150Nm was achieved using the power to weight ratio as the evaluation function. The allowable Hertzian pressure is set as 4GPa. The power to weight ratio of zero-spin and concave disks/rollers becomes 2.3 and 1.7kW/kg, respectively. It is improved 36% and the effectiveness of zero-spin disk/roller is confirmed.
社団法人日本機械学会の論文
2007-01-25