GEAR FOR DIAGNOSTICS OF BEARING UNIT Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: invention relates to means of functional diagnostics of bearing units of machines and mechanisms in process of their usage. Gear for diagnostics of bearing unit incorporates two current collectors connected to resistance converter signal from which goes to integrator, comparator and signaller of non- standard operational mode of bearing unit warning by value of average-integral resistance connected in series and to threshold element, time selector, counter clocked by pulses of high-frequency generator and digital indicator of values of monitored parameter - normed integral time of electric contact of matched parts also connected in series. From counter signal is fed through comparator to signalling device of pre-emergency mode. Measurement time changes in inverse proportion depending on value of monitored parameter which makes it possible to avoid emergency mode of operation of bearing unit by timely detection. Second integrator connected to recording device is used for continuous registration of measurement results of present value of normed integral time of electric contact. EFFECT: increased reliability of operation of bearing unit. 1 dwg