FIELD: mechanical engineering, possible use for hanging out and leveling a load platform.
SUBSTANCE: drive contains two pairs of hydraulic supports mounted at angles of load platform, hydraulic locks, connected by their above-valve hollows to piston hollows of hydraulic supports, power supply, three-positional distributors, flow divider, connected by mains to under-valve hollows of hydraulic locks of first pair of hydraulic supports, and two-positional hydro-controlled distributors, included in aforementioned mains. Under-valve hollow of hydraulic locks of each hydraulic support of first pair of hydraulic supports has capacity for connection through appropriate hydro-controlled distributor in one of its position to flow divider, and in another position - to control chamber of aforementioned hydro-controlled distributor and to control chamber of hydraulic lock of diagonally positioned hydraulic support. Power supply through first three-positional distributor is connected to rod hollows of second pair of hydraulic supports, and through second three-positional distributor it is connected to rod hollows of second pair of hydraulic supports, and also to under-valve hollows and to controlling chambers of hydraulic locks, connected to aforementioned pair of hydraulic supports. Inlet aperture of third three-positional distributor is connected to power supply, and each one of its output apertures is connected to corresponding control chamber of hydraulic lock, connected to one of hydraulic supports of second pair of hydraulic supports.
EFFECT: increased holding reliability of hung and leveled load platform in given position during its stop.
1 dwg
