DYNAMIC MODELS AND STABILITY OF SUB-SYSTEMS "ACTUATOR - FACE" OF MINING MACHINE

Methods of selecting rational dynamic parameters in the systems of feed, suspention and drive of the actuators of the mining machines have been devised; compensating devices providing an essential decrease in dynamic loading of mining machines have been created. Dynamic models of the mining machines as a closed dynamic system "actuator - face" have been built, the problems of the stability have been studied using the methods of classical mechanics, a theory of automatic control and statistical dynamics. Computer simulation has been made, oscillograms of the dynamic processes in mining machines in real conditions have been obtained, statistical characteristics have been constructed. The compensating devices for mining macnines "actuator feed" and suspension systems have been suggested. About 400 blast holes have been drilled. About 50 cleaning combines have been equipped with the compensating devices at the Production Association "Vorkutaugol" and Joint-Stock Company "Intaugol".Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio