| 摘要 |
PURPOSE:To facilitate the disassembling and incorporating of the guide vane only by a method wherein a vane for the guide vane is divided into three parts which are vertical to the axial direction of shafts attached with both ends of the vane while each divided parts of the vane are connected by a connecting means capable of being disassembled. CONSTITUTION:The vane 3a of the guide vane 3 is divided into three parts of an upper vane 3A, an intermediate vane 3B and a lower vane 3C which are vertical to the axial direction of the shafts 3b, 3c, while they are connected by a connecting means consisting of a connecting bolt 12 and the like and capable of being disassembled. The guide vane is divided so as to satisfy the relation of LM>HL, LU<H, where LU represents the length of the upper shaft 3b plus the same of the vane 3A, LM represents the length of the intermediate vane, HL represents the length of a lower shaft 3c and H represents the total length of the vanes 3A-3C. According to this method, the disassembling and the incorporation of the guide vane only may be effected without disassembling an upper cover or the like (not shown in the diagram). |
