Kinematics analysis and computer simulation on longitudinal cutting head of roadheader

This paper establishes the pick locus, velocity and acceleration equations on the longitudinal cutting head by use of coordinate transfer, when cutting gibbet horizontal swings. The effect of the rotation velocity and the horizontal swinging velocity of cutting head on the pick velocity and acceleration and their relative variations are studied through computer simulation. According to the results, the pick velocity and acceleration are increases rapidly with the rotation velocity. But their relative variations are reduces. The pick velocity and acceleration increase are not evident with the horizontal swinging velocity. But the velocity relative variation increase rapidly and the acceleration small. All above that provide theory base for choosing work parameters.