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Lubricating property testing device for port plate pair of axial plunger pump

An axial piston pump and testing device technology, applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve problems such as unseen, and achieve the effect of easy replacement

Inactive Publication Date: 2005-01-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foreign products related to high-pressure, high-speed, and large-flow pumps are very mature, but there are no literature reports in this area.

Method used

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  • Lubricating property testing device for port plate pair of axial plunger pump
  • Lubricating property testing device for port plate pair of axial plunger pump
  • Lubricating property testing device for port plate pair of axial plunger pump

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] Such as figure 1 As shown, including hydraulic power system, lubricating film test platform and monitoring control system, among which:

[0027] 1) The hydraulic power system includes the main oil circuit and the loading oil circuit,

[0028] The main oil circuit includes: the manual variable plunger pump 5 is connected to the oil tank 1 equipped with the heater 2 and the temperature sensor 3 through the first oil suction filter 4, and the first three-phase asynchronous motor 6 is connected to the manual variable plunger through a coupling Pump 5, the high-pressure oil port of the manual variable plunger pump 5 is respectively connected to the oil inlet port of the electromagnetic unloading overflow valve 8 and the first check valve 9 through the first precision pressure filter 7, and the first accumulator 11 is passed through The first high-pressure cut-off valve 10 is respectively connected with the oil outlet of the first check valve 9, the proportional relief valve...

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PUM

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Abstract

This invention discloses an apparatus for measuring the lubrication of axial plunger pump auxiliary. Its hydraulic power system is composed of main oil line and loading oil line, wherein main oil line serves to provide hydraulic oil to test bench of lubricant film, and loading oil line serves to provide relevant pressing force to auxiliary to balance hydraulic backward thrust from seal band; test bench of lubricant film is to test auxiliary lubrication under various working situations; monitoring and controlling system is to monitor the experiment status in real time and to collect multiple working parameters during the experiment to accomplish the analysis and process of the datum in measuring experiment. Computer is employed to accomplish the on-line monitoring of various working situations to ensure high safety and stability.

Description

Technical field [0001] The invention relates to a testing device for the lubricating characteristics of a flow distribution pair, in particular to a testing device for the lubricating characteristics of a flow distribution pair of an axial piston pump. Background technique [0002] The distribution pair is one of the most critical friction pairs in the axial piston pump, and it is also the most prone to wear and failure. Therefore, the sliding surface of the axial piston pump distribution pair usually should ensure the necessary lubrication conditions, and it is required to form a lubricating film of appropriate thickness between the sliding surfaces to make it play the role of liquid lubrication. However, the lubricating film should not be too thin, otherwise the phenomenon of "burning" will occur; the lubricating film should not be too thick, otherwise the sealing effect will be small, the internal leakage of the pump will increase, and the volumetric efficiency will decre...

Claims

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Application Information

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IPC IPC(8): G01N19/00G01N19/02
Inventor 周华艾青林岳艺明杨华勇
Owner ZHEJIANG UNIV
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