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Multi-scale test machine for measuring lubricating oil film by optical interference method

A lubricating oil film, multi-scale technology, applied in the direction of measuring devices, optical devices, instruments, etc., to achieve the effect of convenient operation, low manufacturing cost, and increased reliability

Inactive Publication Date: 2009-08-26
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of the light interference method is that one of the two contacts must be made of a transparent material

Method used

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  • Multi-scale test machine for measuring lubricating oil film by optical interference method

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Experimental program
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Embodiment Construction

[0023] A preferred embodiment of the present invention is described in detail as follows in conjunction with accompanying drawing:

[0024] see figure 1 , the light interferometry multi-scale lubricating oil film measurement testing machine, including a base 8, a motor 7, a transmission device, a supporting device and a loading device, the motor 7 drives a horizontal sliding plane placed on the base through the transmission device The glass 1 makes a reciprocating horizontal movement; the supporting device is a floating supporting device, which supports the test piece 5 and is in rolling contact with the lower surface of the flat glass 1; the loading device is a lever-type loading mechanism, supporting the floating supporting device to make The test piece 5 applies pressure to the flat glass 1; a microscope for measuring the oil film is fixed above the flat glass, and its lens is aimed at the rolling contact line between the flat glass 1 and the test piece 5.

[0025] The abo...

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Abstract

The invention discloses a multi-scale test machine for measuring lubricating oil film by optical interference method, comprising a base, an electric motor, a drive device, a supporting device and a loading device; the motor drives a flat glass horizontally and slidingly arranged on the base to move horizontally to and fro through the drive device; the supporting device is a floating supporting device and supports the test pieces to be rotatably contacted with the lower surface of the flat glass; the loading device is a lever type loading device and supports the floating supporting device to cause the test pieces to exert pressure and load on the flat glass, upper part of which is fixed with a microscope for measuring oil film; lens of the microscope aligns to the rotatable contact line between the flat glass and test pieces. The invention has the advantages of pure rotating, continuousness and multi-scale, overload, simple structure and strong practicality.

Description

technical field [0001] The invention relates to a test device for measuring lubricating oil film thickness and oil film shape. Background technique [0002] Determining the oil film thickness and its geometry in the lubricating contact area is one of the most important issues in its research, because it determines the proximity of two relatively moving material surfaces and the contact stress between them, thus affecting the friction, wear and Fatigue failure plays a dominant role. [0003] The lubrication state of most mechanical parts in engineering is an unsteady state. For example, in gear transmission, although the transmitted power and rotational speed remain constant, the radius of curvature of the contact point on the tooth surface of the gear tooth, the entrainment speed, and the load it bears all change with time. In the operation of rolling bearings or cam mechanisms, the lubrication state of the contact points also changes with time. In the process of starting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/06G01B11/24
Inventor 华同曙陈晓阳丁建宁
Owner SHANGHAI UNIV
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