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Hydrostatic extruder, piston for hydrostatic extruder and cylinder for hydrostatic extruder

An extruder, hydrostatic technology, applied in the field of extruders, can solve problems such as high manufacturing costs

Inactive Publication Date: 2019-01-04
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of this is that when producing the outer surface of the working piston, deviations from an easily producible cylindrical shape have to be made, which entails increased production costs
Furthermore, such a spherical shape is "fixed" independent of the actually acting transverse force, so that this solution can also only optimally reduce the surface contact pressure in a narrow operating range.

Method used

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  • Hydrostatic extruder, piston for hydrostatic extruder and cylinder for hydrostatic extruder
  • Hydrostatic extruder, piston for hydrostatic extruder and cylinder for hydrostatic extruder
  • Hydrostatic extruder, piston for hydrostatic extruder and cylinder for hydrostatic extruder

Examples

Experimental program
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Embodiment Construction

[0092] figure 1 A hydrostatic axial piston machine 1 in the form of a swash plate is shown. The axial piston machine has a housing 2 with a pot-shaped housing part 4 which is closed by a housing cover 6 which has hydraulic connections (not shown). A drive shaft 8 is rotatably mounted in the housing 2, wherein the mounting is realized on the one hand via a rolling bearing 10 on the housing base 12 of the housing part 4 and on the other side via a rolling bearing 14 on the housing cover 6. accomplish. A cylinder 16 is connected in a rotationally fixed manner to the drive shaft 8 and has a plurality of cylinder bores or working cylinders 22 on a pitch circle 20 arranged concentrically with respect to the axis of rotation 18 , in which cylinder bores or working cylinders A working piston 24 is arranged longitudinally movably in each of them. The working pistons 24 each protrude from the working cylinder 22 with a neck and a piston head 26 connected thereto, wherein the piston h...

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PUM

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Abstract

Disclosed is a hydrostatic extruder, in particular a hydrostatic axial piston machine. The hydrostatic extruder has a cylinder having at least one cylinder in which a longitudinally movable p piston is received. The piston is supported directly or indirectly on an inclined plane of the extruder by means of a support section, wherein an outer surface section of the piston abuts an inner surface section of the cylinder . Also disclosed is a piston for the extruder and a cylinder.

Description

technical field [0001] The invention relates to a hydrostatic extruder according to the preamble of claim 1 , a piston for said extruder according to claim 13 and a piston for said extruder according to claim 14 . The cylinder of the press. Background technique [0002] Hydrostatic extruders convert hydraulic power in the form of the product of pressure medium volume flow and pressure into mechanical power in the form of torque and rotational speed, or vice versa. For power conversion, a hydrostatic working chamber of variable volume is required, which is delimited by the piston. In this case, the piston guided in the cylinder slides down on an inclined plane, or the piston is ball-and-socket connected to the inclined plane. The mounting of the piston on the inclined plane is based on two variants. This principle applies, for example, to radial piston machines, axial piston machines in the form of inclined disks or inclined shafts, oscillating disk machines or vane machin...

Claims

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Application Information

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IPC IPC(8): F04B53/14F04B53/16F04B1/20
CPCF04B1/124F04B1/2035F04B53/14F04B53/162F03C1/0605F03C1/0652F04B1/126F03C1/0636
Inventor M.祖格R.舍雷尔
Owner ROBERT BOSCH GMBH