| 摘要 |
PURPOSE: A duplex gear train driving structure is provided to drive a differential gear wheel set input rocker arm. CONSTITUTION: A differential gear wheel set assembly(300) comprises a gear, a friction gear, a pulley, a sprocket, or a CVT(Continuously Variable Transmission) wheel. A primary transmission gear(301) transfers rotational kinetic energy between umbrella planetary gear power transmission rocker arms. A secondary transmission gear(302) transfers the rotational kinetic energy between the umbrella planetary gear power transmission rocker arms. A differential gear wheel set(800) installs differential output shafts(311,312) which are outputted to outside. The differential gear wheel set comprises a shell of the differential gear wheel set assembly and a bearing.
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