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Axial piston machine

An axial piston engine and piston technology, which is used in reciprocating piston engines, mechanical equipment, variable capacity engines, etc., can solve the problems of unfavorable deformation and wear at the bottom of the bearing, and achieve the effect of simple manufacturing.

Inactive Publication Date: 2018-09-21
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the pressing process of the slide bearing into the axial piston pump housing, unfavorable deformations on the bearing bottom and then additional wear can also occur

Method used

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  • Axial piston machine
  • Axial piston machine

Examples

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Embodiment Construction

[0021] figure 1 A longitudinal section through an axial piston machine 100 is shown with a housing 10 consisting of a first housing part 10a and a second housing part 10b. The two housing parts 10 a and 10 b are screwed together by screws 19 .

[0022] In the housing 10, the drive shaft 20 is rotatably supported via two bearings:

[0023] - a first bearing 21, which is configured as a tapered roller bearing and is arranged in the first housing part 10a and

[0024] - A second bearing 22 , which is designed as a plain bearing and is arranged in the second housing part 10 b.

[0025] The second bearing 22 is arranged on the shaft end 25 of the transmission shaft 20 and cooperates with a bearing surface 25 a of the shaft end 25 .

[0026] The first securing ring 26 fixes the inner ring of the first bearing 21 configured as a tapered roller bearing relative to the shoulder of the transmission shaft 20 .

[0027] A second bearing 22 configured as a slide bearing is pressed into...

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Abstract

An axial piston machine (100) for operation as a pump and / or motor, having a housing (10), a drive shaft (20) and a piston drum (40). The piston drum (40) is connected to the drive shaft (20). The drive shaft (20) is mounted rotatably within the housing (10) by means of a first bearing (21) and a second bearing (22), wherein the first bearing (21) is in the form of a tapered-roller bearing and the second bearing (22) is in the form of a plain bearing. The first bearing (21) can absorb axial forces on the drive shaft (20) in a force direction from the second bearing (22) toward the first bearing (21). The drive shaft (20) is preloaded in said force direction. On a housing face side (11), facing toward the drive input and / or output, of the housing (10), there is arranged an abutment surface (12) which can interact with a run-on surface (15a), facing the abutment surface (12), of a drive input or drive output wheel (15) arranged on the drive shaft (20).

Description

technical field [0001] The invention relates to an axial piston machine according to the preamble of claim 1 . Background technique [0002] Axial piston machines are hydrostatic pumps or motors which are based on the compression principle and compress a hydraulic fluid or are driven by the compressed fluid. Known axial piston machines have a plurality of working pistons which are dynamically guided in working cylinders, in rotating piston cylinders and on pivotable rockers. The working piston is acted upon by fluid pressure on the fluid side of the axial piston machine, wherein the resulting forces acting on the opposite side of the working piston are absorbed in each case by a sliding shoe on the oscillating cradle. [0003] Piston pumps can be operated not only as pumps but also as motors: [0004] - In the case of an axial piston pump, the piston cylinder is driven by the transmission via the transmission shaft, the fluid is compressed in the working cylinder by the wo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03C1/06F04B1/20F04B27/08
CPCF04B1/2064F03C1/0649F03C1/0663F03C1/0671F04B1/2028F04B27/0852
Inventor M·格莱纳
Owner ROBERT BOSCH GMBH
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