Helical transmission with balls

Abstract

Goal: The problem, which the invention solves, is the simplification of the construction, the expansion of the functional possibilities and the compensation of the axial forces in the gear. Solution: The execution of the inner bush with a spherical outer surface, on which one (or two) closed sinusoidal grooves with an inclined axis γ₁ are executed with the possibility of varying the angle of inclination of the sinusoidal groove(s) ensures the relatively easy variation of the speed of the driven shaft, using gear elements; The implementation of two closed sinusoidal grooves with a phase shift of 180° on the spherical outer surface of the inner bushing, and on the inner spherical surface of the outer bushing two rows of longitudinal grooves inclined at an angle γ₂ and γ₂+90°, respectively, ensures increased bearing capacity and compensation of axial forces, which occur in the gear.