CONTROL SYSTEM OF ARM SUSPENSION OF FORGING MANIPULATOR Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: control system has controlled reducing valves whose outlets are connected through throttles to controlled hollows of slide-valve distributors. In this case, controlling rods of reducing valves in pairs contact arms of control levers, and freeing channel of one slide-valve distributor is connected with outlet of working pressure pump. Inlet of freeing channel of other distributor is connected with outlet of the first distributor, and outlet of the second distributor, with return line. In this case, inlets of both distributors are connected with inlet of freeing channel of the first distributor. EFFECT: higher efficiency. 1 dwg