Finite Element Analysis about Transmission Components in C Parts of Direct-drive Bi-Rotary Milling Head

In a direct-drive high-power A / C-axis bi-rotary milling head,torque is transferred by two parallel connected rotary direct drive motors in C-axis, therefore, the length of C axis is inevitable large, moreover, the transmission components of it are bearing high torque. Through analyzing the twist stiffness of the transmission components in C-axis by the finite element method, the result that the torsion deformation of the sleeve accounts for a large scale in transmission components of C parts is found. In the permitted extent structural design of C-axis, the stiffness of transmission components in C parts is increased effectively through shortening the sleeve and lengthening its external diameter.