LIFT-UP DEVICE AND OPERATION METHOD OF LIFT-UP DEVICE

To facilitate performing work of descending a lifting part.SOLUTION: A lift-up device includes a guide tower 20 provided adjacently to a power generator tower 11, and a lifting part 30 mounted on the guide tower 20 and constructed to lift up and down the guide tower 20, and lifts up a rotor 13 to the upper portion of the power generator tower 11. The lifting part 30 includes a suspension part 41 for suspending a hub 13h, a beam 42 extending in the width direction and supporting the suspension part 41, and a pair of support parts 50 for supporting both ends of the beam 42 in the width direction. The support parts 50 are constructed so as to be movable in the cross direction between a suspension position for suspending the hub 13h by the suspension part 41, and a retreat position in which the beam 42 and the support parts 50 do not interfere with a nacelle 12 and the rotor 13 when the lifting part 30 descends.SELECTED DRAWING: Figure 10 【課題】昇降部を降下させる作業を容易に行うことができる。【解決手段】リフトアップ装置は、発電機タワー１１と隣り合って配置されるガイドタワー２０と、ガイドタワー２０に取り付けられ、ガイドタワー２０を昇降可能に構成された昇降部３０と、を備え、発電機タワー１１の上部にロータ１３を持ち上げる。昇降部３０は、ハブ１３ｈを吊り下げる吊り下げ部４１と、幅方向に延在し、吊り下げ部４１を支持する梁４２と、幅方向における梁４２の両端を支持する一対の支持部５０とを備えている。支持部５０は、吊り下げ部４１によりハブ１３ｈを吊り下げる吊り下げ位置と、昇降部３０が降下する際に梁４２及び支持部５０がナセル１２及びロータ１３と干渉しない退避位置との間で前後方向に移動可能に構成されている。【選択図】図１０