Three-dimensional space maneuvering bionic robot fish and buoyancy adjusting device

Abstract

The invention provides a three-dimensional space maneuvering bionic robot fish and a buoyancy adjusting device. The three-dimensional space maneuvering bionic robot fish comprises a main body structure, a propeller, a buoyancy adjusting device and pectoral fins. The buoyancy adjusting device comprises a buoyancy cylinder and a volume adjusting mechanism arranged in the buoyancy cylinder, the two ends of the buoyancy cylinder are sealed through watertight hatch covers. Water inlet and outlet holes are formed in two ends of the buoyancy cylinder; the volume adjusting mechanism comprises steppingmotors, lead screws, a movable support and a piston; the piston is fixed to one end of the movable support; a disc with a threaded hole in the middle is fixed to the other end of the movable support;the tails of the two stepping motors are fixedly connected; an output shaft of each stepping motor is connected with one lead screw; and the lead screws are matched with the threaded holes of the disc. The device can ensure that the robotic fish rapidly floats up and dives down, and effectively solves the problem that the three-dimensional space maneuverability of the current robotic fish is weak.

Description

technical field [0001] The invention relates to an underwater robot, in particular to a bionic underwater robot. What the present invention also relates to is a kind of buoyancy adjustment device of underwater robot. Background technique [0002] With the development of the marine economy, the marine environment is deteriorating day by day, coastal and offshore environmental pollution is intensified, ecosystem functions continue to degrade, fishery resources are sharply reduced, and ecological disasters occur frequently. The task of marine ecological environment protection is becoming increasingly heavy. [0003] Both traditional remote-controlled underwater vehicles (ROV) and autonomous underwater vehicles (AUV) are propelled by propellers, which are noisy and have poor flexibility. They are more adaptable to tasks such as marine biological scientific research, marine ecological restoration and protection, and deep-sea aquaculture water quality monitoring. Difference. The...

AI Technical Summary

Problems solved by technology

[0003] Both traditional remote-controlled underwater vehicles (ROV) and autonomous underwater vehicles (AUV) are propelled by propellers, which are noisy and have poor flexibility. They are more adaptable to tasks such as marine biological scientific research, marine ecological restoration and protection, and deep-sea aquaculture water quality monitoring. Difference

The bionic robot fish with fish as the object of imitation has given full play to the advantages of fish, with strong maneuverability and good concealment. Most of the existing robot fish control vertical movement through pectoral fins or center of gravity adjustment systems, and their three-dimensional space movement ability is weak. It is difficult to achieve special movements such as vertical plane maneuvering at zero speed, and it is urgent to design a bionic robot fish that can realize the above movements

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