Integrated planetary gear structure of engine and generator

The invention discloses an engine and generator integrated planetary gear structure which is integrated between the output end of an engine and the input end of a generator and comprises a sun gear, a planet carrier, an inner gear ring and a plurality of planetary gears. The sun gear is fixedly arranged on the large end of a crankshaft of the engine; the planet carrier and the large end of the crankshaft are coaxially pivoted on a flywheel shell of the engine; the inner gear ring and the large end of the crankshaft are coaxially and fixedly arranged on the flywheel shell; the planetary gears are evenly distributed at one end of the planet carrier in a pivoted mode, and the planetary gears are meshed with the sun gear and the inner gear ring at the same time. Wherein the planet carrier serves as a power output end of the engine. According to the integrated planetary gear structure of the engine and the generator, the rotating speed of the output end of the engine can be effectively reduced, and the integrated