Patent ID: 11913523
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. A precessional gear transmission including a casing, a satellite wheel with two bevel gear crowns installed on an inclined portion of a crankshaft between two central bevel gear wheels, a first central bevel gear wheel being immovably fixed in the casing and a second central bevel gear wheel being mounted on a driven shaft, wherein teeth gearing is performed in contacts with convex-concave geometry, wherein the central bevel gear wheels comprise curvilinear flank profiles with variable curvature with one tooth less than the satellite wheel with two bevel gear crowns made with circular arc flank profiles, teeth have flanks which mate with frontal overlap εf simultaneously engaged pairs of teeth, at the same time the gear wheels are made with a conical axoid angle, and a circular arc radius of the flank profiles of a Z-toothed satellite wheel gear crown provides a diminution of a difference in curvatures of the flank profiles in a section with diameter D and a decrease in pressure angle αw between the flanks of up to 15°, as well as a decrease in relative sliding velocity between mating flanks.