STRAIN WAVE GEARING HAVING CONTINUOUS-CONTACT TOOTH PROFILE FORMED USING ARCUATE TOOTH PROFILE

摘要

In the wave gear device of the present invention, the main portion of tooth tooth profile at the external tooth 24 of the internal gear of rigidity is cut at a right angled section in the axial direction by using a semicircle (26) centered on the center line of the tooth saw tooth And The main portions of the teeth teeth of the external teeth 34 of the external gears are set so that the curved portions Ma (A, B) in the predetermined range in the movement locus Ma by rack approximation to the internal teeth 24 of the external teeth 34, Is defined using a parallel curve 38 at a distance equal to the radius r1 of the semicircle 26. [ It is possible to realize continuous and wide engagement between tooth teeth teeth between the external teeth 34 and the internal teeth 24 and the torque capacity of the wave gear device can be increased.;