axial piston machine

Abstract

The invention relates to an axial plunger machine having a housing part (2), a drive shaft (4, 5) supported in the housing part (2), and a cylinder block (10, 5). 11), the cylinders (10, 11) are non-rotatably connected to the drive shafts (4, 5) and receive a large number of plungers that respectively define a working space (16) and are supported on the swash plate (14). The working space ( 16 ) can be alternately connected to high-pressure channels ( 46 ) and low-pressure channels running in the housing part ( 2 ). Inserts ( 30 , 31 ) are fixedly incorporated into the housing part ( 2 ), which are directly opposite the cylinders ( 10 , 11 ) with a control surface ( 144 ). The inserts ( 30 , 31 ) have a high-pressure channel section ( 52 ) and a low-pressure channel section ( 54 ) with, for example, kidney-shaped openings in the control surface Area (56, 58). Further intake openings ( 132 , 134 ) of the high-pressure channel section and the low-pressure channel section, which lie opposite the intake area in the control surface ( 144 ), are formed radially on the insert.

Description

technical field [0001] The invention relates to an axial piston machine according to the preamble of claim 1 and to an insert suitable for such an axial piston machine. Background technique [0002] Axial piston machines are known, for example, from DE 10 2006 062 065 A119536997 C1 and from data sheet RDE 93 220-04-R / 02.08 of Bosch Rexroth AG and can be designed as uniaxial or double axial piston machines and as pumps or motors. In these known solutions, the axial piston machine is provided with a housing in which at least one cylinder is rotatably mounted with a plurality of pistons which delimit the working space accordingly. These plungers are each supported by plunger feet on a swash plate whose angle of attack determines the plunger lift. [0003] Accordingly, the working space delimited by the plunger can be alternately connected to the high-pressure channel and the low-pressure channel via a control disk arranged on the end face in the housing. The cylinder is conne...

AI Technical Summary

Problems solved by technology

When higher loads occur due to higher hydraulic pressures, damage or deformation of the housing parts can then occur in the region of existing shrinkage cavities, so that the operating time of the axial piston machine is reduced

[0012] The disadvantage of this solution is that the control disk, the insert ring and the housing part are very complex to produce with the required precision and compressive strength and require a lot of space in the axial direction , wherein the control panel rests against the housing member

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