Several Key Issues in Involute Gear Design Parameters Based on UG

This paper establishes involute,tooth root transition curve symmetrical equations,of parametric equations accurately calculates the value and boundaries of the gear teeth of different forms of modeling,provides back-bevel gear cone base plane coordinate system to establish the baseline method.The solution of the parameters of the key problems ensures the authenticity of the gear tooth profile,tooth profile to avoids the loss of asymmetry and the problem parameters,and achieves a gear design of the real model parameters.