HYDRAULIC DRIVE OF CRANE-MANIPULATOR SLEWING CIRCLE POST TURNING MECHANISM Russian patent published in 2005 - IPC

FIELD: mechanical engineering; load-lifting facilities.

SUBSTANCE: proposed hydraulic drive contains axial-piston pump, hydraulic motor to operate post turning mechanism, tank with drain filter for cleaning working fluid, electrohydraulic distributing, regulating and protective-and-safety devices and control and augmenting systems with corresponding hydraulic main lines and cables. Pump of hydraulic drive is made adjustable for stepless changing of power and is furnished with load sensitive unit to maintain constant pressure differential in control main line, and main distributor is made sectional and sensitive to load. Control system is combination one, with provision of possibility of remote and direct control under manual operating conditions.

EFFECT: simplified design, improved performance and economic characteristics of proposed hydraulic drive.

2 cl, 21 dwg