A device for measuring friction, wear and lubricating oil film of ball-three-slope contact in pure sliding condition

Abstract

The invention belongs to the high-stress contact pair tribological characteristic measurement technical field and relates to a ball-three-slope contact pure sliding work condition friction wear and lubricating oil film measuring device. A steel ball rotation driving unit, a test head loading and lifting unit, a lubricating oil film measuring unit, and a friction force measuring unit are mounted onthe operation platform of a supporting unit; a steel ball in a test head unit is connected with the rotation driving unit; the lower end of the test head unit is connected with the test head loadingand lifting unit; the friction force measuring unit is matched with the test head loading and lifting unit and is used for measuring the friction force of a contact pair in the test head unit; and thesupporting unit is connected with and supports the steel ball rotation driving unit, the test head loading and lifting unit, the lubricating oil film measuring unit and the friction force measuring unit. The device has the advantages of simple structure, convenient operation, high accuracy of measurement data and high repeatability of measurement results. With the device adopted, the quantitativeanalysis and research of the tribological properties of higher pairs can be facilitated.

Description

Technical field: [0001] The invention belongs to the technical field of measurement of tribological characteristics of high-stress contact pairs, and relates to an experimental measurement device for friction, wear and lubricating oil film of contact pairs under pure sliding working conditions, in particular to a ball-three-slope contact pure sliding working condition Friction and wear and lubricating oil film measurement device. Background technique: [0002] In mechanical transmission devices, a large number of core components such as bearings, gears, and cams are in high-pair contact. The tribological characteristics of these components have an important impact on the operating accuracy, service life, and power consumption of the equipment. Understanding the state of friction, wear and lubrication in high-stress contact pairs is of great significance for guiding the tribological design, surface treatment and development of lubricating oils of mechanical components. [00...

AI Technical Summary

Problems solved by technology

With people's in-depth research on tribology, the theory and application of tribology have transformed from macro to micro. Researchers are more inclined to quantitatively understand the dynamic evolution process of friction characteristics, which requires simultaneous extraction of friction, wear and Lubrication information, establish the inner relationship between the three in real time, but the existing equipment can either measure friction and wear at the same time, but lacks the measurement of film thickness; or can measure film thickness and friction at the same time, but the analysis of wear uses Offline mode, instead of online real-time tracking of the wear process

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