Insulation structure of main transmission system of semi-direct-drive wind driven generator and transmission system

The invention discloses an insulation structure of a main transmission system of a semi-direct-drive wind driven generator, which comprises an insulation pad and an insulation sleeve, the insulation pad is positioned between a rear box body of a gear box and a bearing seat of an output shaft, and the insulation sleeve is sleeved on a bolt for connecting the rear box body of the gear box and the bearing seat. The invention further discloses a main transmission system of the semi-direct-drive wind driven generator, the main transmission system comprises the gear box and the generator, an output shaft of the gear box is directly connected with a rotating shaft of the generator, and the insulation structure of the main transmission system of the semi-direct-drive wind driven generator is arranged between a rear box body of the gear box and a bearing seat of the output shaft. According to the insulation structure and the transmission system, the problem of insulation between the gearbox and the generator of the co