Miniature guide bearing lubricating oil film measuring apparatus and guide regulating method thereof

Abstract

The invention discloses a miniature slipper bearing lubricant film measuring instrument which comprises a frame, a miniature sliding block, a transparent round disk, a miniature sliding block fixing and adjusting unit, a transparent round disk revolving unit, a loading single end and a micro-interference measuring unit, wherein, a group of adjusting devices are used for adjusting and fixing the obliquity of the miniature sliding block. The instrument achieves high efficiency and high accuracy in adjusting the obliquity, and height difference of the two sides of an inclined surface has an adjustment accuracy of 0.2 micron. The utilization of the instrument can lead to the obtaining of a determined obliquity between a miniature sliding block work plane and the transparent optical round disk in a static condition. The adjustment of the obliquity includes the adjustment of size and direction.

Description

technical field [0001] The invention belongs to the field of experimental measurement equipment for low secondary contact fluid lubricating oil film, in particular to a measuring instrument for measuring the thickness of fluid lubricating oil film under the condition that the inclination angle of the miniature sliding block bearing plane is constant. Background technique [0002] Oil film lubrication is an extremely important technical research field in engineering. It uses lubricating oil to form a separating oil film between two frictional solid surfaces to reduce surface wear. The experimental study of lubricating oil film mainly measures the thickness and shape of the oil film between a pair of friction surfaces. The two friction surfaces in oil film lubrication are divided into high pair contact (point contact, line contact) and low pair contact (surface contact) according to their contact mechanics characteristics. For point and line friction contact pairs, there are ...

AI Technical Summary

Problems solved by technology

figure 2 It is a plane contact slider bearing oil film thickness measurement system used by Imperial College of Technology, the limitation of which is (1) the inclination angle of the slider cannot be adjusted; (2) the floating support of the slider, the inclination angle is formed adaptively, and changes with the speed; ( 3) Under the working conditions allowed by the system, the working surface of the slider becomes a convex surface due to thermal deformation, and the lubrication properties change

The magnetic head-disk flying height measurement system developed in the past ten years is as follows: image 3 As shown, it cannot be used as a miniature slider bearing lubricating oil film measurement by changing the geometry of the magnetic head, and its limitations are similar to those of figure 2 The mechanism shown is similar, that is, the inclination angle of the slider cannot be adjusted and the floating support of the slider, and its measuring range does not meet the measurement of the lubricating oil film thickness of the slider bearing.

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