| 摘要 |
The invention discloses a hydraulic auxiliary drive for an implement pulled or pushed by a working machine, which can be supported on the ground by at least one rotating element - e.g. a supporting wheel or roller. The hydraulic auxiliary drive has a displacement pump and a hydraulic motor and can be activated and deactivated. A supply pressure of the hydraulic motor is determined by a maximum pressure limiter (pressure cut-off). Thus, the hydraulic motor can be provided with a swept volume corresponding to the current speed of travel of the mobile working machine by adjusting a pivot angle of the displacement pump. Furthermore, the supply pressure of the hydraulic auxiliary drive and in particular of the hydraulic motor is kept substantially at a constant level by comparatively fine regulation of the pivot angle of the displacement pump. |
