Axial plunger pump piston shoe auxiliary lubrication characteristic test device

A technology of axial piston pump and characteristic test, which is applied in the direction of measuring device, adopting mechanical device, pump, etc., can solve unseen problems, achieve high safety and reliability, and easy replacement of test pieces

Inactive Publication Date: 2008-03-26
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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  • Axial plunger pump piston shoe auxiliary lubrication characteristic test device
  • Axial plunger pump piston shoe auxiliary lubrication characteristic test device
  • Axial plunger pump piston shoe auxiliary lubrication characteristic test device

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Experimental program
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Embodiment Construction

[0025] As shown in Fig. 1 and Fig. 2, the present invention includes a hydraulic power system, a lubricating film test platform and a monitoring and control system, wherein:

[0026] 1) The hydraulic power system includes: the manual variable plunger pump 5 is connected to the oil tank 1 equipped with the heater 2 through the oil suction filter 4, the three-phase asynchronous motor 6 is connected to the manual variable plunger pump 5 through a coupling, and the manual variable plunger The high-pressure oil port of the pump 5 is respectively connected with the oil inlet of the electromagnetic unloading overflow valve 8 and the one-way valve 9 through the precision pressure filter 7, and the accumulator 11 is respectively connected with the one-way valve 9 through the first high-pressure cut-off valve 10. The oil outlet, the proportional relief valve 12 and the oil inlet port of the two-position four-way solenoid valve 17 are connected, the signal line of the signal generator 14 ...

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Abstract

The invention discloses a test device for the second lubricative characteristic of slideshoe of an axial stem bump, which consists of a hydraulic dynamic system, a lubrant film detecting panel and a monitoring control system. The hydraulic gear provides the high pressure oil supply to the lubricative film detecting panel. The lubrant film detecting panel is used to test and research the characteristic of the slideshoe on different working condition; The monitoring and control system can real-time monitor the test condition, collect multiple working parameters in test process and finish works such as test data analysis and processing. The test device adopts computer to on-line monitoring various working conditions in the process of test, therefore, provides a high safety and reliability. The test condition is adjustable and test fittings is easy to be replaced.

Description

technical field [0001] The invention relates to a test device for the lubrication characteristics of a sliding shoe pair, in particular to a test device for the lubrication characteristics of an axial piston pump sliding shoe pair. technical background [0002] The sliding shoe 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 sliding shoe pair of the axial piston pump should generally ensure the necessary lubrication conditions, and it is required to form a lubricating film of appropriate thickness between the sliding surfaces so that it can play the role of liquid lubrication. However, the lubricating film should not be too thin, otherwise "shoe burning" damage 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 decrease significan...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01N19/02F04B1/12G01N33/30
Inventor杨华勇艾青林周华岳艺明
OwnerZHEJIANG UNIV