Offshore horizontal axis wind generating set

The invention discloses an offshore horizontal axis wind generating set. The unit comprises an impeller, a transmission system and a power generation unit. The transmission system is composed of a main shaft, main bearings and two bearing seats, and each bearing seat corresponds to one set of main bearings. The main shaft is connected with the hub and penetrates through the interior of the hub. On the front side and the rear side of the outer portion of the hub, the main shaft is connected with the two bearing seats through two sets of main bearings. The rotating part of the power generation unit is connected with the spindle or the hub, and the fixed part is connected with the bearing seat. The unit is connected with the at least three supporting columns, and the at least one front supporting column and the at least two rear supporting columns are connected with the two bearing seats respectively. The impeller rotates between the front strut and the rear strut. A conventional cantilever type supporting mode