Hydrostatic drive for a slewing gear, slewing gear with such a drive, and mobile working machine with such a slewing gear

摘要

Disclosed is a hydrostatic drive for a slewing gear, in particular for a mobile work machine, with a rotatable coupled to the first hydraulic machine, which can be supplied in a normal operation via a hydraulic valve unit of the drive with pressure medium. For a regenerative operation of the slewing gear, the drive has a hydraulic accumulator and a separately provided, other hydraulic valve unit. About this is, for storing rotational and / or braking energy of the slewing, the hydraulic accumulator of the first hydraulic machine with pressure medium charged and, for recuperation of stored pressure medium energy, the first hydraulic machine from the hydraulic accumulator can be acted upon with pressure medium. Furthermore disclosed are a slewing gear and a mobile work machine with such a drive.