Hydrostatic Axial Piston Machine Employing A Bent-Axis Construction With A Constant Velocity Joint For Driving The Cylinder Drum

摘要

A bent-axis hydrostatic axial piston machine (1) has a drive shaft (4) with a drive flange (3) rotatable around an axis of rotation (Rt) and a cylinder drum (7) rotatable around an axis of rotation (Rz). The cylinder drum (7) has a plurality of piston bores (8) concentric to the axis of rotation (Rz) of the cylinder drum (7) and having longitudinally displaceable pistons (10) fastened in an articulated manner to the drive flange (3). Between the drive shaft (4) and the cylinder drum (7) there is a drive joint (30) (constant velocity joint) for rotationally synchronous rotation of the cylinder drum (7) and the drive shaft (4). The drive joint (30) and the cylinder drum (7) include a longitudinal bore (11) concentric to the axis of rotation (Rz) of the cylinder drum, through which bore (11) the drive shaft (4) extends such that in the vicinity of the drive shaft (4) there is a torque transfer to a cylinder-drum-side end of the axial piston machine (1).

主权项

1. A hydrostatic axial piston machine utilizing a bent-axis construction, comprising:
a drive shaft rotatable around a drive shaft axis of rotation and provided with a drive flange; a cylinder drum rotatable around a cylinder drum axis of rotation; a plurality of piston bores located in the cylinder drum and concentric to the axis of rotation of the cylinder drum; a longitudinally displaceable piston located in each piston bore, wherein the pistons are fastened in an articulated manner to the drive flange; and a drive joint between the drive shaft and the cylinder drum, wherein the drive joint is a constant velocity joint for synchronous rotation of the cylinder drum and of the drive shaft, wherein the drive joint and the cylinder drum include a longitudinal bore concentric to the axis of rotation of the cylinder drum, and wherein the drive shaft provided with the drive flange extends through the cylinder drum via the longitudinal bore such that there is a torque transfer to a cylinder-drum-side end of the axial piston machine in the vicinity of the drive shaft.