| 摘要 |
<p>An inclined shaft type axial piston pump motor is capable of preventing galling and seizure at spherical-shaped sliding surfaces of a cylinder block and a valve plate and permits high speed. Thus the axial piston pump motor comprises a spring (47) for pressing a cylinder block (42) against a valve plate (43), a sheet (46) arranged between an inner surface of a central hole (42c) of the cylinder block (42) and a center shaft (35) to be slidable in a longitudinal direction of the central hole (42c), and lubricating means (48, 46a, 46b) for providing lubrication between the inner surface of the central hole (42c) and an outer diameter portion of the sheet (46). Contact portions of the sheet (46) and of the center shaft (35) are formed into a swingable spherical configuration, and a gap between the outer diameter portion of the sheet (46) and the inner surface of the central hole (42c) is formed to be a predetermined small one.</p> |
