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Ball-disc sliding friction pair liquid lubricating state optical testing device in vacuum environment

A technology of optical testing and sliding friction, which is applied in the direction of using optical devices, measuring devices, and phase-influenced characteristic measurements to achieve easy-to-adjust and repeatable effects

Inactive Publication Date: 2016-01-27
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no experimental device has been established at home and abroad to characterize the fluid lubrication state of friction pairs in a vacuum environment.

Method used

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  • Ball-disc sliding friction pair liquid lubricating state optical testing device in vacuum environment
  • Ball-disc sliding friction pair liquid lubricating state optical testing device in vacuum environment
  • Ball-disc sliding friction pair liquid lubricating state optical testing device in vacuum environment

Examples

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Embodiment Construction

[0031] Such as figure 1 As shown, an optical test device for the liquid lubrication state of the ball-disk sliding friction pair in a vacuum environment, including a vacuum system, a ball-disk friction mechanism and an optical test system:

[0032]The vacuum system includes a vacuum chamber 2 provided with a deflation valve 1, a vacuum gauge 4 connected to a vacuum gauge 3 through a cable, and the vacuum chamber 2 is provided with a plug valve 5 through the vacuum chamber 2. The vacuum pipeline 6 is connected with the molecular pump 7; the molecular pump 7 is connected with the mechanical pump 9 through the vacuum bellows 8;

[0033] The ball-disk friction mechanism includes a friction pair consisting of an upper sample 10 and a lower sample 11 located in the vacuum chamber 2. The upper sample 10 is a rigid solid with a spherical lower end, and a loading weight placed above one end of the cross bar 12 The code 13 is connected with the upper sample 10 through the vertical rod ...

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Abstract

The invention discloses a ball-disc sliding friction pair liquid lubricating state optical testing device in a vacuum environment. The device integrates a vacuum system, a ball-disc friction mechanism and an optical testing system in an optimizing mode, the vacuum friction pair liquid lubricating state optical testing system testing the thickness and distribution of lubricating agents in the vacuum environment is set up, and the technical condition is provided for studying the lubricating state and the change law of liquid in the space vacuum environment.

Description

technical field [0001] The invention relates to an optical test device for the liquid lubrication state of a ball-disc sliding friction pair in a vacuum environment, and belongs to the technical field of space tribology. Background technique [0002] Liquid lubricant is the most widely used lubricating material. The thickness and distribution of lubricant between friction pairs is an important factor to determine its lubrication state. The optical method to characterize the thickness and distribution of lubricant in the friction process is the key to study the state of lubricant. One of the commonly used methods. [0003] Liquid lubricants include mineral oils, synthetic oils, animal and vegetable oils, and water-based fluids, among others. Because this kind of lubricant has the advantages of low and stable friction coefficient, wide viscosity-temperature coefficient, small compression ratio, high heat dissipation efficiency, size and precision of moving parts, and high cos...

Claims

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Application Information

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IPC IPC(8): G01N21/45G01B11/06
Inventor 孙晓军周峰刘维民
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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