Synchronised hydraulic or pneumatic servo drive - has double-acting inner pistons of dual-dia. piston-cylinder units connected in series

摘要

The unit is for the synchronisation of two or more parts, esp. for hydraulic or pneumatic piston-cylinder servo drives. Two or more servo drives are positioned in series in an integral system, so that the relative movements between the pistons and cylinders of all drives are synchronised. When operational, the drives are connected to the outer annular pistons so that the movement of these parts is controlled and synchronised. Each cylinder is movable relative to a piston and each is connected to one of the parts. The system contains connection lines so that each side of each piston is connected to corresp. opposite sides of the piston is the neighbouring piston cylinder units.