hydrostatic drive for mehrachsig powered vehicles and method for hydrostatic drive of such vehicles and other solution.

摘要

A hydrostatic drive for standard units with multi-axle drive, with at least one hydraulic source, at least two hydraulic motors or groups of hydraulic motors connected in parallel and a mechanical connection with a transmission ratio (i) between each hydraulic motor and the axle driven by the respective hydraulic motor, in which each of the hydraulic motors or each group of hydraulic motors respectively drives one or more axles, at least some of the driven axles can be uncoupled from the hydraulic motor(s) driving them and the torque constants (k) of the hydraulic motors driving the standard units are essentially equal at maximum capacity, the torque constant (k) corresponding to the output torque on the shaft of the hydraulic motor at maximum capacity and a pressure differential of 1 bar, is, as a purely hydrostatic drive and control arrangement, to be capable of permitting a high torque on the one hand and a high axle speed on the other for a comparatively low weight of the axle drive. This object is achieved in that, allowing for the diameter, the transmission ratios of the mechanical connections are different from one another for at least some of the driven axles, so that at least for these driven axles the respective product of the torque constant of each hydraulic motor or each group of hydraulic motors and the transmission ratio of the associated mechanical connection (k x i) is different. IMAGE