Abstract
When the FA pin-cycloid drive is used in high precision control drive system, especially in the robot drive, there are strict requirements to torsional rigidity .Usually in rated torque, the elastic lost motion produced by the torsional elastic deformation must meet certain precision. This paper analyzes all kinds of elastic factors which affect the rigidity, establishes mathematical model of the machine rigidity and calculates the rigidity for the FA pin-cycloidal drive. Meanwhile ANSYS is applied to build finite element analysis model, and the finite element contact analysis results coincide with the rigidity analysis theory, which confirms the correctness of the machine rigid mathematical model.
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