Analysis of the Inherent Characteristics of the Power Transmission System of the Shearer’s Rocker Arm

Taking the typical rocker arm drive system of shearer as the research object, considering the influence of shaft section, bearing, gear (including planetary gear system) and concentrated mass, the finite element model of bending torsion coupling of the whole rocker arm drive system is established, its inherent characteristics are solved, and the main failure parts and failure forms of the system are predicted. The conclusion is that the system shows strong coupling vibration. When the system rotates at low frequency, the main vibration is on the planetary gear subsystem.