Research on Dynamic Characteristics of Transmission System of Roller Shearer Cutting Unit
In view of the complex geological conditions of shearer cutting coal,taking the N1306 working face of Gucheng Coal Mine of Lu'an Mining(Group)Co.,Ltd.as the background,the dynamic stability of the transmission system of shearer cutting unit is studied based on MG400/940-WD shearer.By using the method of theoretical analysis,the analytical formula of shearer cutting resistance under multiple working conditions is established.When the traction speed and speed of shearer are constant,the load of cutting drum is positively correlated with impedance.The numerical simulation of shearer is carried out by MATLAB,and the dynamic response analysis of cutting motor and planetary wheel of shearer cutting unit transmission system under multiple working conditions is analyzed.Determine the change of different cutting impedance.By proposing and formulating the traction speed regulation and cutting speed regulation scheme and simulating and verifying,it is determined that the traction speed regulation scheme can better realize the adaptability of the shearer to cut coal and improve the stability of the shearer.
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