A bionic propulsion device capable of reversing under water

Abstract

The invention provides an underwater bionic propulsion device capable of reversing, which consists of three parts: a driving mechanism, a swing arm mechanism and a limit mechanism, wherein the driving mechanism is mainly composed of a power shaft, a strut, a bracket, and a pin; the The swing arm mechanism is composed of a swing arm, blades, and pins; the limit mechanism is composed of a limit frame, a hydraulic cylinder, and an oil pipe. When working, the axial movement of the power shaft drives the strut, which drives the swing arm to swing back and forth; the blade is mounted on the swing arm through a pin, and the blade can rotate freely around the pin; the limit frame is driven by a hydraulic cylinder to realize the swing The arm moves along the swing arm to limit the blade. The invention has the advantages of simple structure, low noise and the ability to reverse, and is suitable for underwater vehicles such as underwater robots.

Description

Technical field [0001] The invention relates to a propulsion device, in particular to a bionic propulsion device capable of reversing underwater, belonging to the field of ships and ocean engineering. Background technique [0002] The noise problem of underwater vehicles has always been a key research issue in the design of underwater vehicles, and reducing noise is of great significance to enhancing the vitality of underwater vehicles. At the same time, the better flexibility of the underwater vehicle is also an important guarantee for its vitality. The propulsion device is an important source of noise, and the noise reduction of the propulsion device is an important part of the noise reduction of the underwater vehicle. [0003] In response to these problems, various solutions have been proposed at home and abroad. The patent "A jellyfish-like underwater propulsion device" (patent number CN202175186U) designs a jellyfish-like underwater propulsion device. The propulsion device...

AI Technical Summary

Problems solved by technology

Based on the principle of bionics, the propulsion device simulates the opening and closing of the canopy when the jellyfish moves underwater. It has good explosiveness, but its structure is relatively complicated and its practicability is poor.

The patented Line-drive polyarticular fishtail underwater propulsiondevice and bionic mechanism thereof (Patent No. CN201210307229) designed a line-driven multi-joint imitation fishtail underwater propulsion device and its bionic mechanism, which simulated fish swimming more realistically. It is easy to control and has high propulsion efficiency, but its disadvantage is that the structure is relatively complicated and it is difficult to achieve effective control

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