Hob retaining base of shield tunneling machine

Hob retaining base of shield tunneling machine

The utility model discloses a shield tunneling machine hob retaining base which comprises a base A and a base B. The front end face of the base A and the front end face of the base B are each provided with a through groove, an installation groove is formed in the middle of the opposite side of the i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MA QUNSEN, YUAN ZHIPING, CAO JUNJIE, MA QIANG, WANG WENWEN
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung:The utility model discloses a shield tunneling machine hob retaining base which comprises a base A and a base B. The front end face of the base A and the front end face of the base B are each provided with a through groove, an installation groove is formed in the middle of the opposite side of the inner surface of the base A and the middle of the opposite side of the inner surface of the base B, and four positioning grooves are evenly formed in the periphery of the installation groove. A cutter shaft is arranged on the inner side of the mounting groove, a cutter ring is arranged in the middle of the outer surface of the cutter shaft in a sleeving mode, cutter bodies are arranged on the two sides of the cutter ring, fixing rings are arranged on the two sides of each cutter body, and four positioning columns are evenly arranged on the sides, opposite to each other, of the outer surfaces of the two fixing rings. Inserting grooves are formed in the upper portion and the lower portion of the side, opposite to the