The drive system of a wind power unit and the wind power unit including this system

Abstract

The invention relates to a wind turbine and its drive system. The drive system of this wind turbine includes a main shaft and a gearbox, the main shaft is suitable for coupling with the main bearing, the drive system also includes a connecting mechanism for connecting the main shaft and the gearbox, on the end face of the connecting mechanism is arranged a ring structure, the inner wall of the ring structure is suitable for coupling with the outer wall of the main shaft, The end face of the lug-shaped structure is aligned with the side wall of the main bearing mentioned. According to the design, a lug-shaped structure is positioned between the main shaft and the speed reducer, so that the lug simultaneously assumes the role of lug-bearing the main shaft and limits the position of the main bearing ring, so that the lug-bearings can both withstand the axial force of the main bearing ring and the bending moment of the wind turbine system and the bending moment caused by the weight of the speed reducer. Simultaneously increasing the diameter of the bolt's connecting circle helps improve the bolt's load-bearing capacity, enhancing its effectiveness and thus improving the torque transmission capability of the drive system.