TUNNEL DRILLING MACHINE

TUNNEL DRILLING MACHINE

PROBLEM TO BE SOLVED: To provide a tunnel drilling machine capable of always smoothly lubricating the sliding part of an outbreak device built in a cutter head even in severe operating conditions including a long sliding stroke, a fast sliding speed and a great sliding frequency. SOLUTION: Lubricant...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHINNO YOSHIHITO, MINAMI TAKASHI, KAI TAKASHI, IMAGAWA TSUTOMU, IMAMURA TAKESHI, KANBAYASHI HIDEO, IKEZOE KATSUJI
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a tunnel drilling machine capable of always smoothly lubricating the sliding part of an outbreak device built in a cutter head even in severe operating conditions including a long sliding stroke, a fast sliding speed and a great sliding frequency. SOLUTION: Lubricant is supplied through an oil supply pipe into a gap between the inner periphery of an upper side spoke 8 and a cylinder 15 with the operation of a circulation pump. The lubricant is supplied through the base of the cylinder 15 into a gap between the inner periphery of a lower side spoke 10 and the cylinder 15, where it is reserved, absorbed by the circulation pump and then supplied again through the oil supply pipe into the gap between the inner periphery of the upper side spoke 8 and the cylinder 15.