Crawler submerged travel boat excavator having boat body capable of floating up and down

Abstract

A crawler submerged travel boat excavator having a boat body capable of floating up and down, comprising a boat body (1). An excavator body (2) is fixedly installed on the boat body (1), a crawler traveling body (3) is arranged below the boat body (1), and the boat body (1) is in floating connection with the crawler traveling body (3) by means of floating lifting / lowering connecting rod assemblies (6), so that the boat body (1) can vertically ascend and descend along with the water depth. A bearing frame is installed on the crawler traveling body (3), bearing and stabilizing devices are arranged at the top of the bearing frame, and linkage shaft members (16) and stabilizing blocks (17) are arranged on the boat body (1) and positioned above the bearing and stabilizing devices. Before aquatic excavation operation, piston shafts of hydraulic cylinders push the linkage shaft members (16) to move downwards to the bottoms of the stabilizing blocks (17) to abut against the bearing and stabilizing devices, so that the boat body (1) is securely installed on a crawler chassis and does not float on the water surface. The complete machine has been securely installed, the boat body will not experience roll or pitch under the action of an excavation force during deep water operation, and it is guaranteed that the complete machine can operate stably and reliably as if on land.

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