Computerized design and generation of modified spiroid worm-gear drive with low transmission errors and stabilized bearing contact Original Research Article

The authors propose a modified geometry of a spiroid worm-gear drive with localized bearing contact, reduced level of transmission errors and a parabolic shape of function of transmission errors. Computerized design of the worm-gear drive that enables to discover and avoid singularities of the generated worm face-gear surface and pointing of teeth is developed. Simulation of meshing by TCA (Tooth Contact Analysis) computer program is developed to determine the shift of bearing contact and transmission errors caused by misalignment. Numerical examples that illustrate the developed theory are provided.