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Abstract: The generating principle for the tooth profile of helical
noncircular gear is introduced. By using the kinematics method, the
meshing theory analysis model for the manufacturing of helical
noncircular gear with movable axes and variable-transmission-ratio is
established. Numerical analysis for the transverse profile, the section
shape of tooth at the centrode cylinder and the contact line of the work
gear are accomplished. It is proved that the tooth profile of helical
noncircular gear is a ruled surface, that the section shape at the
centrode cylinder (tooth trace) is a helix with constant angle and that
the contact line in the paralled helical noncircular gear drive is a
straight line.
Key words: Non-circular gear Helical gear Manufacturing
CLC No: TH132.4
Received 20011106,
received in revised form 20030122
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