SU688861A1 - Device for wear testing of materials - Google Patents

Description

one

The invention relates to the field of materials testing for wear and, in particular, for continuous monitoring of wear.

A device for testing materials for wear is known, comprising a base, a camera mounted thereon for placing samples therein, a drive for rotating the samples, a sample loading mechanism, a sensing element for continuously measuring wear and a wear detection unit 1.

A disadvantage of the known technical solution is the low accuracy and reliability of the results, which is caused by the change of complex electrical devices and the impossibility of measuring large values of wear.

The aim of the invention is to improve the accuracy and reliability of the results.

This goal is achieved by the fact that the sensing element is designed as an electric pressure sensor, on the membrane of which a pin is fixed, interacting with the loading mechanism.

The drawing shows a device for testing materials for wear.

It contains a base 1, a chamber 2 for placing samples, a drive for rotating the samples (not shown in the drawing), a loading mechanism 3, a sensitive element 4

for continuous measurement of wear, made in the form of an electric pressure sensor of enhanced accuracy, type DTM, wear detection unit 5, made in

as a potentiometer and oscilloscope. On the membrane of the sensor 4 is fixed pin 6, which interacts with the loading mechanism 3.

The device works as follows.

The test specimens installed in chamber 2 are brought into rotation by loading them with the help of loading mechanism 3.

As a result of the wear of the samples, the pin 6 is moved, its movements are converted into an electrical signal and recorded with the help of the node 5. The wear of the samples is estimated by calibrated curves characterizing the dependence of the electrical signal on the amount of wear.

 the invention

A device for testing materials for wear, containing a base, a camera mounted on it for placing samples in it, a rotation drive for samples, a sample loading mechanism, a sensitive

3

an element for continuous measurement of wear and a wear detection unit, characterized in that, in order to increase the accuracy and reliability of the results, the sensitive element is designed as an electrical sensor, on the membrane of which

fixed pin, interacting with the loading mechanism.

Sources of information taken into account during the examination 1. USSR Author's Certificate No. 299784, cl. G 01N 19/02, 1970 (prototype).