WAVE TRANSMISSION WITH BACKLASH SELECTION Russian patent published in 2021 - IPC F16H1/00 

FIELD: mechanical engineering.

SUBSTANCE: wave transmission with backlash selection contains a case, a mechanical wave generator consisting of an input shaft and eccentric bushings with bearings mounted on them, a separator with rolling elements and a rigid wheel. The shaft of the disk wave generator and the inner surfaces of the eccentric bushings are equipped with small-module slots, which allow one to set the eccentricities of the bushings with different angular positions relatively to the radial plane. The composite rigid wheel is made of two coaxial wheels with the same gear profile. The first rigid wheel is provided with a hollow in the form of a sector, and the second one is provided with a protrusion connected to the sector, entering with an angular gap in the hollow of the first rigid wheel. In the first rigid wheel, there are two threaded holes with screws that allow one to set the angular position of the first rigid wheel relatively to the axis of symmetry of the protrusion of the second rigid wheel. In addition, springs are placed between the end surfaces of the sector and the hollow of the rigid wheels.

EFFECT: invention provides increased accuracy of the operation and the service life of the mechanism.

1 cl, 2 dwg