Abstract
This brochure describes the type of hydraulic MG300/700-W shearer traction unit program design and cutting the Department of Design and calculation process.
MG300/700-WD traction Shearer hydraulic seam thickness can be used for 2-4 m, Hard coal to the gently inclined seam. With the traditional vertical layout of the single-motor compared to Shearer, Shearer will be the ranging-arm installed directly in the cutting of the shell, gear device exclusively on cutting Shell and planetary reducer, the abolition of the spiral bevel gears, gear box fixed, Rocker rotating sets of structures, their structure is simpler, more compact and higher reliability.
Ranging-arm of the shearer is directly charged coal, the coal loaded, its about the power consumption of the entire power shearer 80% -90%, mainly by cutting Shell, cutting electrical, Gear and drum components. The shearer cutting unit used four drive; Before three straight tooth drive, the fourth level of planetary transmission. 2 Drive Gear to be for the gears, enabling the output speed can be based on different coal hardness in two tranches within the selected speed. Cutting the Department has adopted a three lazy axle, to meet the shearer cutting height on the ranging-arm degree requirements. Designed to be cutting planetary reducer and drum direct link, canceled installed in the drum Pick, simple and reliable.