In 2005 COMPACS®-RPP system has been implemented at the Production-technical services and marketing base (since 01.01.2013 – Logistics department) of "Gazprom dobycha Orenburg", LLC. Bearings, supplied for the repair needs of "Gazprom dobycha Orenburg", LLC, are subjected to acceptance tests. An average number of bearings, subjected to the acceptance tests, is 8000 pieces per year. The expert system for bearing defects diagnostics is based on the envelope spectrum analysis of a vibration signal and detects particular bearings defects: of inner and outer races, rolling elements and cage.
Bearings database includes information on the bearing number, its inner and outer diameters, quantity of rolling elements, their diameters and contact angles. The software provides ability to correct information on the bearings parameters from the operator’s desk. Calculation of the bearings frequencies with allowance for rotation frequency within the bearing testing is carried out automatically. There has been provided capability to accumulate the information on the tested bearings signals in a special archive.
Bearings that fail the acceptance tests are returned to suppliers for replacement. It is practiced to roll the previously used bearings for their health diagnostics and capability of their realignment on the processing equipment.
The system advantages are as follows:
- high speed of operation;
- low requirements to personnel qualification;
- industrial design, providing a high reliability;
- completely automatic operating process - an operator has only to install the bearing and run the diagnostic process.
The system application has allowed to exclude access to production of low-quality bearings and, as a consequence, improve reliability and extend the equipment service life.
Authors: Chief engineer I.V. Andreev / 2013
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