GEAR WHEEL Russian patent published in 2017 - IPC F16H55/12 F16H55/17 F16H57/04 

FIELD: machine engineering.

SUBSTANCE: gear wheel contains a body (1), a toothed rim with the teeth (2) and a pair of flat ring patch pieces (3, 4), fixed at the teeth edges. The patches areas (3, 4) adjacent to the teeth edges are displaced radially relative to the toothed rim top circles towards the center of the wheel. The patches areas (3, 4) located between the adjacent teeth have the outer profile curvature greater, than the curvature of the circumference, into which the outer profiles of the patches areas (3, 4) fixed at the teeth edges, and the curvature of the patches internal profile, located between the teeth, is equidistant to the curvature of their external profile. Each ring patch (3, 4) is provided in its inner and outer perimeters with protruberances (7, 8, 9, 10) in the form of the flat rings, oriented in the plane of the wheel rotation and located with gaps relative to the toothed rim ends. In these gaps adjacent to the perimeters of the ring patches (3, 4), there are flat rubber rings (11, 12, 13, 14). The inner radius of the rubber rings (11, 12) from the patches (3, 4) inner perimeters side is less than the radius of the toothed rim bases circumference. The outer radius of the rubber rings (13, 14) from the patches (3, 4) inner perimeters side is greater than the toothed rim bases circumference. The rubber rings (11, 12, 13, 14) are fixed respectively at the inner ends of the ring protruberances (7, 8, 9, 10), the teeth edges (2) and the body ends areas (1) adjacent to the toothed rim.

EFFECT: invention provides the damping of the impact loads, acting on the teeth and the plastic lubricating grease retention in the wheel teeth area.

2 dwg