LOAD WINCH Russian patent published in 1997 - IPC

FIELD: mechanical engineering; load lifting facilities. SUBSTANCE: planetary reduction gear of winch made in form of separate module to which hydraulic motor and wire rope drum are connected has first planetary train whose sun gear is engaged with hydraulic motor shaft and, through planet pinion, with fixed ring gear. Second planetary train has planet pinion engaging with ring gear of this train, brought into meshing with planet pinion of first train and coupled with drive drum. Both planet pinions are coupled by common shaft and rest through this shaft against ring support members providing cross and longitudinal orientation of planet pinions in kinematic chains. EFFECT: simplified design of reduction gear and winch, reduced dynamic loads in planet pinion engagements. 5 cl, 3 dwg