Globoidal worm gearing

摘要

1,068,925. Gear-cutting. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUTE UGOLNOGO MASHINOSTROENIJA. April 29, 1964, No. 17705/64. Heading B3K. [Also in Division F2] An improved globoidal wormgearing comprises a worm, the helix of which is modified, the curve 2 representing the modification of the helix being without inflection and being tangential to the straight line representing the unmodified helix. The working surface of the worm is defined by the portion from the entry end, the left side of Fig. 3, to the point of tangency. In Fig. 5 (not shown), a curve 3 showing the modification of the operating worm and a curve 4 showing the modification of the generatrix worm are terminated at the point a and coincide at O in the middle part of the mesh area.