FIELD: machine building.
SUBSTANCE: invention relates to variator gearboxes. Variable speed gearbox comprises pulleys, belt twisted through 180 degrees in the form of Mobius ring. Belt is made in form of metal tape containing holes, in which retainers are inserted with ends sharpened on both sides, protruding beyond both sides of the tape and fixed by U-shaped stoppers inserted into their chutes on both sides. Rubber-cord sections with the shape of a truncated cone are pressed by the base to the stoppers. Sections form ventilation-deformation gaps between the tape and the base of the rubber-cord sections and wedge-shaped gaps between sections with tip directed to bases of sections.
EFFECT: higher transmitted power.
1 cl, 3 dwg
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