The paper introduces the modeling process of space assembly relations of bits and bit-holders of roadheader cutting heads. Through the realization of a single bits and bit-holders positioning and assembly, by using the second development tool - Family Table, achieved all bits and bit-holders assembly of roader header cutting head; programmed with Matrix Formulations of Matlab and began load simulation. Written procedures with short, readable, easy to modify, and practicability for application.
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