Derailleurs that keep off more and epicyclie gear thereof

The utility model discloses an epicyclie gear for keep off the derailleur more, can obtain nine at least available ging forward and keep off position and at least one available position of reversing gear, arrange and fourth planet row including first planet row, second planet row, third planet, each planet is arranged all has sun gear, planet carrier and ring gear, subassembly and connecting elements that the planet was arranged can form seven rotators altogether, the subassembly of shifting includes two clutches and four stoppers, the clutch is located between the selected rotator in the rotator, the stopper is located between the selected rotator and mounting in the rotator. This epicyclie gear can have fender positions much more more and the velocity ratio of more optimizing, can show the power transmission performance and the fuel economy that improve the vehicle, and length is shorter moreover, the global design is compacter, can be fine satisfy the requirement of vehicle to aspects such as derailleur durability, power transmission efficiency, size, costs. The utility model also discloses a be equipped with epicyclie gear keeps off the derailleur more.