High-frequency reciprocating fatigue, friction and wear tester

Abstract

The invention relates to a friction and wear tester. The high-frequency reciprocating fatigue, friction and wear tester comprises a driving mechanism, a loading mechanism, an electronic control system, and a data acquisition and processing system. The driving mechanism of the proposal is a magnetically induced driving mechanism, takes an electromagnetic force with periodic change generated by an electromagnetic induction theory as an exciting force, and can achieve the aim of adjusting the excitation frequency by adjusting the power frequency of an electromagnetic coil. A vibration amplitude value can be adjusted by adjusting a current value, thereby obtaining different displacements. The loading mechanism adopts weights to load, and a force transfer mechanism of the loading mechanism consists of a series of sliding roller modules, so that a test force is vertically loaded onto the working surface of a specimen. The mechanism is provided with balancing weights which are used for balancing the mass of other members in a loading system. An electrical control system is connected with the data acquisition system, can adjust the frequency of reciprocating movement of a host machine through special software, acquire signals of the electrical control system and draw related curves at the same time, and can realize the real-time saving of data.

Description

Technical field: [0001] The invention relates to a friction and wear testing machine. Background technique: [0002] Tribology is a marginal science that studies the surface interaction mechanism of relatively moving objects. It involves a large number of problems and a wide range of problems. It needs the help of mathematics, physics, chemistry, metallurgy and chemical engineering, mechanical engineering and materials, hydraulic technology, computer technology and other disciplines. Research results in many fields. It is generally believed that about 1 / 3 of human primary energy is consumed in friction loss, and about 70% of equipment damage is caused by various forms of wear and tear. The national survey conducted by the Tribology Branch of the Chinese Mechanical Engineering Society at the end of the last century shows that the annual consumption of steel for the manufacture of automobiles in my country is roughly equal to that of the manufacture of auto parts. According ...

AI Technical Summary

Problems solved by technology

Existing driving mechanisms for friction and wear testing machines often use hydraulic drive or mechanical drive, which is not efficient

The hydraulically driven testing machine pollutes the environment and consumes too much energy; the mechanically driven testing machine not only has low reciprocating frequency and short stroke, but also has high energy consumption and large volume

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