US Patent 12104541 Method and system for assembling a reduction gearbox

A method of assembling a reduction gearbox is provided that includes: a) aligning first and second ring gears by mounting the first ring gear in a first casing section in a first predetermined position and mounting the second ring gear in a second casing section in a second predetermined position, wherein the first and second casing sections mate with one another in a defined orientation; b) angularly aligning a plurality of planet gear assemblies relative to one another, each planet gear assembly having a main gear, a first lateral gear, and a second lateral gear coupled to one another; c) disposing the aligned planet gear assemblies between the first and second casing sections; and d) coupling the first and second casing sections together in the defined orientation with the first lateral gears meshed with the first ring gear and the second lateral gears meshed with the second ring gear.