Hydraulic axial piston machine

摘要

The invention concerns a hydraulic axial piston machine with a housing, in which a cylinder drum having at least one cylinder is arranged to be rotatable around an axis, in which cylinder is located a piston that is supported on a swashplate, whose inclination angle is adjustable in an adjustment plane. It is endeavored to keep the cost of manufacturing individual parts of the axial piston machine small. For this purpose it is provided that on the side facing away from the cylinder drum (4) the swashplate (12) has a spherical bearing surface (15), which rests on a spherical supporting surface (16) in a bottom part (3) of the housing (2) and comprises an inclination protection (31-34), which counteracts an inclination of the swashplate (12) perpendicularly to the adjustment plane.

主权项

1. An axial piston machine comprising:
a housing having a bottom part with a spherical supporting surface; a cylinder drum rotatably arranged in the housing, the cylinder drum having at least one cylinder; a piston located in the at least one cylinder; a swashplate supporting the piston, the swashplate having a spherical bearing surface on a side facing away from the cylinder drum, the spherical bearing surface resting on the spherical supporting surface of the bottom part of the housing; and an inclination protection having a plurality of grooves located in one of the spherical bearing surface and spherical supporting surface, the plurality of grooves having guide pins guided therein, the guide pins located in the other one of the spherical bearing surface and spherical supporting surface; wherein each groove has an extension in an adjustment plane that is longer than an extension of the guide pin guided therein and a width in a direction substantially perpendicular to the adjustment plane that corresponds to a width of the guide pin so that the inclination protection allows an inclination angle of the swashplate to be adjustable in an adjustment plane while simultaneously counteracting an inclination of the swashplate in a plane substantially perpendicular to the adjustment plane; and wherein the guide pins of the inclination protection are arranged eccentrically to an axis of the cylinder drum to substantially prevent rotational movements of the swashplate in relation to the bottom part.