| 摘要 |
1. In a differential mechanism the combination comprising a hollow casing adapted to be rotated, a plurality of pinion gears rotatably and revolably mounted in said casing, said casing having means defining a pair of openings, an output shaft received in each of said openings, a side gear affixed on the inner end of each of said shafts for limited axial movement with respect thereto, each of said gears being in mesh with said pinions and normally driven thereby at equal speed, at least one of said side gears and at least one of said pinion gears having positive pressure angle teeth, said gears being normally relatively fixed with respect to said pinions and being relatively movable with respect thereto to afford differentiation, said casing having a splined bore adjacent the inner end of each of said output shafts, each of said side gears being formed with an axially outwardly extending externally splined hub, a disc pack received in each of said bores and being operatively connected to the splines of each of said bores and the splines of each of said hubs, each of said disc packs being disposed radially outwardly of the area of mesh of said pinion gears and said side gears, and Belleville washer means extending between said casing and each of said disc packs for effecting a first axial thrust to urge said side gears into mesh with said pinion gears, said pinion gears and said side gears being additionally characterized as being meshed in a relationship such that when torque is applied to said hollow casing said pinion gears and said side gears provide a second axial thrust against said disc pack in a direction opposite the direction of said first axial thrust substantially uniform peripheral. |
