TRACKED VEHICLE, PARTICULARLY A CONSTRUCTION MACHINE, PARTICULARLY A ROAD-MAKING MACHINE, COMPRISING A TRACK TENSIONER, AND METHOD FOR OPERATING A TRACKED VEHICLE COMPRISING A TRACK TENSIONER

摘要

The invention relates to a tracked vehicle, particularly a construction machine, particularly a road-making machine, comprising at least a drive motor and a driving pump of a travel drive hydraulic circuit, which is driven by the drive motor, for producing a drive travel pressure, at least one track running gear, the track running gear comprising a driving wheel driven by the travel drive hydraulic circuit, at least one guide wheel, a track revolving continuously around the driving wheel and the guide wheel, and a track tensioner for tensioning the track, where the track tensioner comprises an adjusting device with a track-tensioning hydraulic cylinder, by means of which the distance between two wheels of the track running gear, particularly the driving wheel and the guide wheel, can be adjusted for tensioning the track, the track-tensioning hydraulic cylinder being connected, by means of a hydraulic tensioning line, to a hydraulic pre-tensioning source by means of which starting pre-tensioning pressure can be applied to the track-tensioning hydraulic cylinder. The tensioning device also comprises a damping device with a spring for damping pressure peaks in the adjusting device. The invention also relates to a method for operating a tracked vehicle comprising a track running gear.