| 摘要 |
A multi-position drive has a cylinder with outlet rod, front and back covers, there in sequence are placed pistons with restrictors of reciprocal displacement, those form discharge cavities and cavity of reversed motion of pistons with feeding channels. To simplify design and to increase range of positioning of the drive outlet element the piston of lower-order position is rigidly connected to additional rod that through opening provided in the back cover goes out of its boundaries and is kinematically connected to the output shaft of stepping motor. |
