CRANE FOR UPPER PART BLOCK PACKAGE INSTALLATION OF WIND POWER PLANT STRUCTURE

摘要

PURPOSE: A crane for the package installation of an upper structure of a wind power plant is provided to vertically position an upper structure and to safely lift up the vertically positioned upper structure even if the height of the upper structure is higher than a boom. CONSTITUTION: A crane for the package installation of an upper structure of a wind power plant comprises lower and upper hydro jacks(26,52), lower and upper guide units(30,54), and a lifting line(20). The lower hydro jack is fixed to a crane cabin structure(16) in a downward inclined state. The upper hydro jack is fixed to the top of a crane boom(14) in an upward inclined state. The lower and upper hydro jacks have rods(24,50). The lower and upper guide units hold the lower and upper parts of an upper structure(28). The lifting line is connected to a lifting ring bracket(78) which lifts up the upper structure.