Slide-o-Cam伝動機構の設計戦略：圧力角最適化
Strategies for the Design of a Slide-o-Cam Transmission
回転運動を直線運動に変換するカム式伝動機構Slide-o-Camについて、圧力角を性能指標として、カムのローブ数増加とカム数増加という2つの設計戦略を比較検討した論文。
著者: Damien Chablat, Jorge Angeles
分類: cs.RO
原文アブストラクト
The optimization of the pressure angle in a cam-follower transmission is reported in this paper. This transmission is based on Slide-o-Cam, a cam mechanism with multiple rollers mounted on a common translating follower. The design of Slide-o-Cam, a transmission intended to produce a sliding motion from a turning drive, or vice versa, was reported elsewhere. This transmission provides pure-rolling motion, thereby reducing the friction of rack-and-pinions and linear drives. The pressure angle is a suitable performance index for this transmission because it determines the amount of force transmitted to the load vs. that transmitted to the machine frame. Two alternative design strategies are studied, namely, (i) increase the number of lobes on each cam or (ii) increase the number of cams. This device is intended to replace the current ball-screws in Orthoglide, a three-DOF parallel robot for the production of translational motions, currently under development at Ecole Centrale de Nantes for machining applications.
