Development of a thermo diagnostic device for monitoring the technical condition of bearings and its comparison with other control methods

Eriks Ozolins,Ilmars Ozolins,Anton Orlov

doi:10.47577/technium.v2i7.2133

Eriks Ozolins, Ilmars Ozolins + Show 1 more

Open Access

https://doi.org/10.47577/technium.v2i7.2133

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Abstract

Within the Institute of Aeronautics, a working diagnostic device was developed, which is able to perform remote temperature monitoring of bearings with a set periodicity, as well as warns the technical staff about temperature rises above the operating limit. The article describes the components of the device and the conditions for their selection. Relatively long-term experimental tests were performed to fully test the device and verify its performance. In the course of these tests, a comparison of the developed device with other bearing control devices was also made in order to be able to draw conclusions as to whether our device is effective in controlling the technical condition of bearings. This article summarizes the results of these researches.

Highlights

The performance and safety of any equipment and structures depends directly on their technical condition
The so called, predictive maintenance approach is emerging and evolving [2], [3]. This approach means that the equipment has built-in or attached sensors that measure various parameters in real time with a certain periodicity and collect statistical information for further processing and analysis, as well as taking into account sensor readings, may alert technical staff if any of the parameters begin to exceed the maximum allowable level
The sensors of the device were only attached in the housing to one of these bearings, which during the experiment allowed measuring the operating temperature of this bearing (Fig. 7)

Summary

Introduction

The performance and safety of any equipment and structures depends directly on their technical condition. The so called, predictive maintenance approach is emerging and evolving [2], [3] This approach means that the equipment (the most important structural elements) has built-in or attached sensors that measure various parameters (temperature, vibration level, deformation level, pressure, etc.) in real time with a certain periodicity and collect statistical information for further processing and analysis, as well as taking into account sensor readings, may alert technical staff if any of the parameters begin to exceed the maximum allowable level. The sensors of the device were only attached in the housing to one of these bearings, which during the experiment allowed measuring the operating temperature of this bearing (Fig. 7). As far as the bearing grease was replaced in February and the worn belts connecting the electric motor to the shaft were replaced, two important measurements are visible in February: point 02.02.20 and the range from 15.02.20 to 16.02.20 (Fig. 8)

Temperature schedule for February

Temperature schedule for March

Findings

Results