Underwater unmanned cable-free operation type robot

The invention relates to the technical field of underwater robots, and particularly relates to an underwater unmanned cable-free operation type robot which comprises a bow part, a middle part and a stern part. The bow part, the middle part and the stern part are each a hollow structure, and a mechanical arm lifting device and a cabin door opening and closing mechanism are arranged in the middle part; and a first horizontal channel propeller and a first vertical channel propeller are arranged on the bow portion, two second vertical channel propellers and four main propellers are arranged on the stern portion, and therefore high-speed cruising of the underwater unmanned cable-free operation type robot can be achieved, and stable and accurate hovering needed by operation of the underwater unmanned cable-free operation type robot can be met. 本发明涉及水下机器人的技术领域，具体为一种水下无人无缆作业型机器人，包括艏部、中部和艉部，所述艏部、中部和艉部均为中空结构，所述中部设置有机械臂升降装置和舱门开合机构，所述艏部上设置有一个第一水平槽道推进器和一个第一垂直槽道推进器，所述艉部上设置有两个第二垂直槽道推进器和四个主推进器，既能实现一种水下无人无缆作业型机器人的高速巡航又能满足其作业所