METHOD OF PROTECTING MINE HOIST FROM ROPE LETTING IN

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to the mining industry and is u0434u043bu00a0 protection of mine lifting units (pu) of the overlap of the wire. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - improving the reliability of protection u0434u043bu00a0 each mode of pu. u0438u0437u043cu0435u0440u00a0u044eu0442 current u00a0u043au043eu0440u00a0 u0434u0432u0438u0433u0430u0442u0435u043bu00a0 u0434u043bu00a0 each mode of pu and u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442 static braking torque Mu0441u0442. drum pu, asking the torque Mu043fu0440u0435u0434. equal to 1.2 Mu0441u0442.and critical current, taking into account the amount of critical and maximum braking moments. u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442 critical time and continuously u0438u0437u043cu0435u0440u00a0u044eu0442 current torque. if the measured value exceeds the current pu u00a0u043au043eu0440u00a0 critical current and the torque is less than the threshold u0437u043du0430u0447u0435u043du0438u00a0 Mu043f u0440u0435u0434., put the safety brake.method u043fu043eu0437u0432u043eu043bu00a0u0435u0442 lock mode of emergency without u043eu0442u043au043bu044eu0447u0435u043du0438u00a0 system wide and reliably protect the pu from the overlap of the wire. 2).