Abstract: Nowadays the screw transmission is studied and applied, but it is limited to one facet that the output member is linear motion when the input member is rotating motion. Little has been done for the opposite facet that the output member is rotating motion when the input member is linear motion, which is an elementary style of transmission. The principle of the transmission, kinesis, and an optimization of structure is studied mainly. As an example, the special ball screw transmission mechanism is optimized with key parameters and is trial-manufactured. On account of dynamic performances of the mechanism, the mechanism is studied with the method of the finite element model by the software MCAE.

Key words: Dynamic performance, Finite element, Special ball screw transmission