Research of the Mine Shuttle Car Drive Mode at Potash mines

摘要

The article presents the results of experimental investigations of the magnitude and nature of change loads drive of mine shuttle car used to deliver ore to extraction chambers in PAO ‘Uralkaliy’ potash mines. The design of recording complex software ‘VATUR’ developed by the staff of the Mining Electrical Engineering department, Perm National Research Polytechnic University, was described. In the course of research of the drive modes of self-propelled mine wagons measurements of instantaneous values of current and voltage motors were carried out. The values of active and apparent power consumed by electric pumping stations and conveyors of mine shuttle car were calculated. Modes and changes in loads on components and parts drives were studied. It was proved that the operation modes of mine shuttle car motors with increased lift capacity are characterized by a systematic overload. Outdated system controlling the rotational speed of shafts drive motor gives rise to considerable dynamic loads on components of mechanical transmissions for shuttle cars. Significant loss of time causing the reduction in technical performance longwall set of equipment of potash mines arises during the maneuvering operations and unloading ore from shuttle cars. Based on the analysis of load drive graphs and emergency failure statistics the technical solutions were justified to improve the reliability of mine shuttle cars. The recommendations to increase the efficiency of transporting potash in the longwall set of equipment, improving maneuverability of self-propelled cars and reduce downtime for unloading are given.