| 摘要 |
A follower drive comprises a pump, discharge and delivery lines, a hydraulic tank, a pressure valve, a four-way spool hydraulic control valve installed on the control object spool of which interacts by first spring with its body and with program carrier, a hydraulic motor of control object and a back coupling mechanism. The program carrier includes stepping motor that through feed nut assembly and support bearing interacts with hydraulic control valve spool. The back coupling mechanism comprises mechanical transmission that connects hydraulic motor for control object movement to nut of screw gear. |
