Device and method used for turning over large component with non-circular section

The invention provides a device and method used for turning over a large component with a non-circular section and relates to turn-over devices, in particular to turn-over devices for components with non-circular sections. The device and method solve the problem that the large thin-walled component with the non-circular section is difficult to turn over. One end of a fixed base of the device is fixed over the inner surface of an upper shroud ring, the other end of the fixed device is connected to a front lifting hook and a rear lifting hook of the to-be-turned-over component with the front lifting hook and the rear lifting hook, one movable baffle is used for limiting the front lifting hook, the other movable baffle is used for limiting the rear lifting hook, and the to-be-turned-over component is sleeved with the upper shroud ring and a lower shroud ring. The method includes the steps that the to-be-turned-over component is sleeved with the upper shroud ring and the lower shroud ring, the upper shroud ring and the lower shroud ring are fixed with bolts, and the movable baffles are fixed to the upper shroud ring through bolts; the fixed device is placed on a track and rolls along the track; the to-be-turned-over component with the front lifting hook and the rear lifting hook is turned over in place and then stops on the track. The device and method are suitable for turning over the large component with the non-circular section.