| 摘要 |
PURPOSE: An excavation apparatus for the sea bottom with a hydraulic roller cutter is provided to improve excavation accuracy by preventing a hydraulic roller cutter from being separated from the sea bottom. CONSTITUTION: An excavation apparatus for the sea bottom with a hydraulic roller cutter comprises a fixed base part(100), a tubular boom(200), a hydraulic roller cutter(300), a camera part, and a hydraulic pump. Front and rear outriggers are installed in the fixed base part. Horizontally movable parts are installed on the tops of the front and rear outriggers. The tubular boom is connected to hinge parts formed on the movable parts of the fixed base part and is submerged to the sea bottom. The hydraulic roller cutter is connected to the front end of the tubular boom and has multiple chain frames with bits for excavating the sea bottom. The camera part is installed in the hydraulic roller cutter and photographs excavation work in real-time. The hydraulic pump supplies hydraulic pressure to a hydraulic motor, a reducer, and first to fourth hydraulic cylinders of the hydraulic roller cutter. [Reference numerals] (AA) Worker
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