Machinery soft start planet gear

The utility model discloses a machinery soft start planet gear, cross the device including input sun gear shaft, output shaft, reduction gear casing, gentle the breaking through of planet transmission system, wherein planet transmission system includes line of input star wheel axle's sun gear part, planet wheel, ring gear and planet carrier, buffering transition device is by input frame, input spring mounting board, extension spring and output unit frame. Link to each other through the bearing between input sun gear shaft, the output shaft, utilize the bearing to link to each other with the reduction gear casing respectively simultaneously, input frame and planet carrier link firmly through the screw, link to each other through bearing and reduction gear casing simultaneously, input spring mounting board links firmly through the screw with the input frame, and links to each other with the output unit frame through extension spring, output unit put up parallel key and output shaft and linked to each other. Bec