FIELD: component parts of dredgers or soil-shifting machines, particularly hydraulic or pneumatic drives thereof.
SUBSTANCE: balancing device comprises gantry and boom and includes main hydraulic cylinders and balancing hydraulic cylinder having piston and rod cavities communicated correspondingly with gas cylinder and with tank inlet through working liquid distribution means and hydraulic pump. Balancing device also has the second balancing hydraulic cylinder including piston and rod cavities communicated correspondingly with gas cylinder and tank inlet through working liquid distribution means similarly to the first hydraulic cylinder. The first and the second balancing hydraulic cylinders are pivotally connected with track-like loader gantry and boom and are installed over main hydraulic cylinders.
EFFECT: increased operational efficiency and improved sealing of gas cavity in balancing hydraulic cylinder.
2 dwg
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