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Hydraulic machine comprising an improved bearing

A hydraulic and machine technology, applied in the field of hydraulic machines, can solve the problems of increasing machine volume and cost, expensive price, bulky volume, etc.

Pending Publication Date: 2021-12-31
POCLAIN HYDRAULICS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this creates large diameter bearings which are bulky, expensive and require a large diameter shaft
This adds bulk and cost to the machine in the bearing area

Method used

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  • Hydraulic machine comprising an improved bearing
  • Hydraulic machine comprising an improved bearing
  • Hydraulic machine comprising an improved bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0080] First, the attached image 3 The general architecture of a hydraulic machine according to the invention is shown in .

[0081] image 3 A hydraulic machine is shown which mainly comprises four components: a housing 100 , a shaft 200 , an assembly 300 forming a motor or a pump and means 400 forming a rotational guide bearing of the shaft 200 relative to the housing 100 .

[0082] Where appropriate, the machine according to the invention can also be equipped with a brake, which is placed between the elements of the housing 100 and the elements of the shaft 200, e.g. figure 1 Disc brakes of the type shown.

[0083] Each of these components may itself form the subject of numerous embodiments. Therefore, they will not be described in detail hereinafter.

[0084] The general structure and general function of each of these components will be briefly recalled.

[0085] Housing 100 is intended to be fixed to the chassis of a machine or vehicle. It essentially comprises a m...

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PUM

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Abstract

Disclosed is a hydraulic piston machine comprising a housing (100), a shaft (200) that is able to rotate relative to the housing (100), a cam (112) secured to one of the housing (100) or the shaft (200), a cylinder block (334) comprising pistons (336) that are able to move in the cylinder block (334) opposite the cam (112) in order to generate relative rotation between the cylinder block (334) and the cam (112), the cylinder block (334) being linked in rotation to the other of the shaft (200) or the housing (100), means (400) forming rotation guide bearings for guiding the rotation of the shaft (200) relative to the housing (100), in which means (400) forming rotation guide bearings comprise a tapered plain bushing (450) interposed between a housing element (116) and an element (334, 380) linked in rotation with the shaft (222) and in which the tapered plain bushing comprises a radial through-slit extending through the entire radial dimension of the bushing.

Description

technical field [0001] The invention relates to the field of hydraulic machines. [0002] The invention relates especially, but not exclusively, to hydraulic machines having radial pistons. Background technique [0003] Many types of hydraulic machines have been proposed. [0004] Examples of machines according to the prior art are disclosed in document FR 2 796 886, such as the attached figure 1 and figure 2 shown. [0005] attached figure 1 and figure 2 A hydraulic machine is shown which mainly comprises five additional components: a housing 10; a shaft 20; an assembly 30 arranged between the housing 10 and the shaft 20 forming a motor or a pump; means 40 forming a guide bearing , the guide bearing enables relative rotation of the shaft 20 about the axis O-O relative to the housing 10 , and the brake 50 . Housing 10 is intended to be fixed to the chassis of a machine or vehicle. [0006] Each of the above five components can form the target of many different embo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03C1/04F16C33/04F16C33/10
CPCF16C33/046F16C33/1065F16C2360/00F04B1/0404F16C2350/00F03C1/047F03C1/0403F04B1/047F16C17/10F16C2360/42
Inventor 朱利安·勒内·昂格朗吉勒斯·格里永斯蒂芬妮·伯纳德·克尔特莱
Owner POCLAIN HYDRAULICS IND