engleski

Toothing with Harmonic Basic Profile

The paper elaborates the geometry, condition of meshing, undercut and sliding velocities of gears with harmonic basic profile. The calculation show that in the such kind of gearing the contact pressure on the beginning and at the end of meshing can be neglected because of convex-concave contact between top and root of teeth. In the middle area of meshing the contact pressure increase, but is always lesser than in the gears with involute toothing. The stress on the root fillet of toothing with harmonic basic profile is considerably less than in involute toothing because of larger cross section and larger curvature radii of the root fillet. Due to convex-concave contact, the elastohydrodynamic oil film are thicker, and has no tendency to be lost, as it is case with involute gears with inadequate shift coefficients.

gear; toothing; undercut; convex-concave contact; contact pressure

nije evidentirano