CUTTER HEAD ASSEMBLING STRUCTURE AND CUTTER HEAD ASSEMBLING METHOD

摘要

PROBLEM TO BE SOLVED: To provide cutter head assembling technique that can assemble a cutter head firmly at a site without impairing accuracy. ;SOLUTION: This cutter head assembling structure is so constituted as to assemble a cutter head for a shield machine provided with a cutter head body forming a natural ground cutting part, a ring-like bearing holder 6 concentrically fitted to a swing wheel 2 forming power transmission mechanism of a cutter head driving motor, and a plurality of beams 7 for connecting the cutter head body to the bearing holder 6 to support the cutter head body. In this case, cutter head assembling structure is composed of divided pieces formed by bisecting a connected body of a plurality of beams 7 and the bearing holder 6 in lateral symmetry by a dividing face 9 vertically dividing the center part of the beam 7, and the cutter head body formed separately from a plurality of divided pieces by a dividing face 8.;COPYRIGHT: (C)1998,JPO