STRUCTURE FOR ATTACHING DISC CUTTER

PROBLEM TO BE SOLVED: To provide a compact structure by eliminating directivity in attaching a disc cutter to a casing. SOLUTION: This structure for attaching a disc cutter includes key blocks 13 each having an inclined face which abuts the inclined face of the shaft fixing part 5 of the disc cutter...

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Bibliographic Details
Main Author BANDO EIGO
Format Patent
LanguageEnglish
Published 05.12.2000
Edition7
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:PROBLEM TO BE SOLVED: To provide a compact structure by eliminating directivity in attaching a disc cutter to a casing. SOLUTION: This structure for attaching a disc cutter includes key blocks 13 each having an inclined face which abuts the inclined face of the shaft fixing part 5 of the disc cutter 1 while taking the form of a wedge, a casing 6 having a supporting part for supporting the shaft fixing parts 5 and having a clearance part for removing the shaft fixing part 5, fixing blocks removably provided to cover the clearance part, and fixing bolts 18 passing through the fixing blocks to tighten the key blocks 13 backward. The attached positions of the key blocks 13 to the right and left shaft fixing parts 5 are opposite each other at the right and left of a shaft, and the key blocks 13 can be disengaged and removed by rotating the disc cutter 1 through a predetermined angle θ.
Bibliography:Application Number: JP19990154054