DOI: 10.14489/td.2020.04.pp.022-027

Karpenko A. B.
ASSESSMENT OF VIBRATION ACTIVITY OF A REDUCER AT USE OF DIFFERENT LUBRICANTS
(pp. 22-27)

Abstract. The serviceability and durability of mechanisms substantially depends on a correctness of the choice of lubricants and a way of greasing. As lubricants for gears of reducers and their bearings use liquid hydrocarbon and synthetic oils and also ductile lubricants. Influence of lubricant on a vibration activity of mechanisms is considered. The criterion of quality determined the minimum power of a vibration signal here. As a measuring device the analyzer of vibration Vibro Vision-2 is used. At the beginning of article the studied object – a four-stage reducer is described. Further results of measurements of power of a vibration signal in the given frequency range for each of the considered lubricants are shown. At the same time the frequency range is divided into strips. The root-mean-square value (RMS) of vibration speed which determines vibration signal power was measured in each strip. RMS observed data in each frequency band is presented as a tables and schedules. Further on the basis of the obtained data the histogram of distribution of RMS on frequency stripes where each of the considered lubricants is presented is created. In conclusion the obtained data is analysed, conclusions are drawn on the reasons of vibration and recommendations about the choice of lubricant depending on the frequency range of a gearing of teeth are made.

Keywords: lubricant, reducer, vibration diagnostics, gear drive, teeth gearing frequency.