Patent ID: 9447846
Filing Date: 2016-09-20
CPC Classification: F16H

Claim Text:
1. A suspended wheel crossing-zero multilevel transmission, comprising: a front planetary gear train including one multilevel gear shift mechanism; a rear planetary gear train including a rear sun wheel, a rear planetary wheel and a rear inner gear ring; and a suspended wheel, wherein the rear inner gear ring is shaped at an inner peripheral surface of the suspended wheel and integral with the suspended wheel, the multilevel gear shift mechanism includes: the input gear wheel engages with one set of the plurality of sets of the output gear wheels, the input gear wheel is transmissively coupled with the front inner gear ring through said one set of the output gear wheels, the rear sun wheel is transmissively coupled with the rear inner gear ring through the rear planetary wheel, a wheel center of the rear sun wheel and a wheel center of the input gear wheel are rigidly coupled with a power input shaft, a wheel center of the rear planetary wheel is coupled with a power output shaft for outputting power, a reduction ratio of one set of the plurality of sets of output gear wheels to the input gear wheel is identical to a reduction ratio of the rear planetary wheel to the rear sun wheel.