INITIAL GENERATING CONTOUR FOR FORMING TEETH OF SPROCKETS Russian patent published in 2021 - IPC F16H55/08 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering. The initial generating contour for forming the teeth of the sprockets of high-speed and high-speed chain drives by the rolling method has the radius of the tool tooth head r₁, the radius of the convexity of the tooth r₂, the radius of the arch of the root of the tooth r₃, the inscribed angle of the convexity of the tooth are determined from the ratios: r₁ = 0.503 d_r; r₂ = 1.0 d_r; r₃ = 1.2 R_ch; the inscribed angle of the convexity of the tooth - 15°, where d_r is the diameter of the chain roller; R_ch - chain step.

EFFECT: reduced shock loads during the operation of the chain transmission, as well as improved quality of the working chain engagement.

1 cl, 2 dwg, 2 tbl