CRANE-MANIPULATOR PLANT HYDRAULIC SYSTEM

FIELD: materials handling equipment. ^ SUBSTANCE: proposed hydraulic system contains actuating members of drives of corresponding mechanisms of crane-manipulator plant made in form of hydraulic motors, pump, tank with drain filter for cleaning working fluid, electrohydraulic distributing and protective-and-safety and regulating devices with corresponding hydraulic connecting main lines, two-circuit overload safeguard and control system with cables. Pump of hydraulic system is made adjustable, with possibility of stepless change of power and is furnished with sensitive-to-load unit maintaining constant pressure differential between pump output and pressure pipeline of most loaded actuating member, and main distributor to control actuating members of drive of mechanisms of above-indicated plant is made in form of sectional electrohydraulic distributing module sensitive to load. Hydraulic system is made for increasing load capacity of crane-manipulator plant. Arrangement and other decisions and remote control system of hydraulic drive are optimized. ^ EFFECT: improved performance and other characteristics of hydraulic system. ^ 3 cl, 33 dwg