| 摘要 |
1. Double acting hydraulic actuator, particularly for controlling the mechanized mine props on an electro-hydraulic path, characterized in that on at least one end of the cylinder (1) of the actuator there is an overpressure chamber (2) separated from the inside of the cylinder with a piston partition (3) equipped with a buffer (5) on the actuator piston (6) side, whereas the partition (3) on the opposite side is weighted with a spring (4), and a pressure sensor (7) is connected to the overpressure chamber (2).<IMAGE>
|
