Dynamics analysis of double-drum shearer and mechanical model establishment

To ensure the safe and reliable work of the double-drum shearer and meet its dynamic mechanical properties and low vibration requests,double-drum shearer is studied and its force is analyzed.Based on the actual situation and working conditions of the shearer,assumptions: shearer is failure-free operation;every part of the shearer is uniform mass distribution and rigid body;every part is connected by elastic elements that are without quality;damping is viscous damping.On this basis,mechanical model of double-drum shearer is established.This model provides reliable basis for mathematical model establishment.At the same time,it is a basis for further dynamic analysis of the shearer.