Hydrostatic axial piston machine

Abstract

A hydrostatic axial piston machine of swash plate design includes a pivot cradle configured to be pivoted by a regulating valve. The movement of the pivot cradle is fed back to the regulating valve via a return spring. The return spring is attached to the pivot cradle in the region between its end section on the regulating-valve side and an end section which is remote from the regulating valve.

What is claimed is: 
     
         1 . A hydrostatic axial piston machine of swash plate design, comprising:
 an adjusting device configured to adjust the pivoting angle of a pivot cradle;   one or more of a counterpiston of a countercylinder and an actuating piston of an actuating cylinder configured to act on said pivot cradle,   wherein the pivoting angle is configured to be adjusted by a regulating valve, the regulating valve having a valve slide configured to be loaded via a return spring with a returning force that is dependent on the pivoting angle, and   wherein the return spring is attached to said pivot cradle in the region between its end section on the regulating-valve side and the end section which is remote from the regulating valve.   
     
     
         2 . The hydrostatic axial piston machine according to  claim 1 , wherein the return spring is attached indirectly to the pivot cradle. 
     
     
         3 . The hydrostatic axial piston machine according to  claim 1 , wherein the return spring is supported on a spring sleeve. 
     
     
         4 . The hydrostatic axial piston machine according to  claim 3 , wherein the pivot cradle is connected to the spring sleeve in a non-positive or positively locking manner by a driver. 
     
     
         5 . The hydrostatic axial piston machine according to  claim 4 , wherein the spring sleeve is prestressed via a bearing spring in the direction of its bearing position against the driver. 
     
     
         6 . The hydrostatic axial piston machine according to  claim 5 , wherein the bearing spring is arranged coaxially with respect to the return spring. 
     
     
         7 . The hydrostatic axial piston machine according to  claim 6 , wherein the return spring and the bearing spring overlap one another in sections. 
     
     
         8 . The hydrostatic axial piston machine according to  claim 5 , wherein a spring force of the bearing spring is greater than a spring force of the return spring. 
     
     
         9 . The hydrostatic axial piston machine according to  claim 5 , wherein the spring sleeve has, on the bottom side, a receptacle configured to receive an end section of the return spring. 
     
     
         10 . The hydrostatic axial piston machine according to  claim 1 , wherein the regulating valve is arranged laterally offset with respect to one or more of the actuating cylinder and the countercylinder. 
     
     
         11 . The hydrostatic axial piston machine according to  claim 10 , wherein the regulating valve is parallel to the drive device axis.