Space engine-driven tail swing propelling plant

Abstract

The invention discloses a space engine-driven tail swing propelling plant which comprises a K-H-V type linear hypocycloid planetary gear train, a planetary plate external plate rotating device, a space ball accessory rod system, an engine-driven control mechanism and a tail fin direction control mechanism. The K-H-V type linear hypocycloid planetary gear train and the space ball accessory rod system comprehensively act to achieve swing/flapping of the tail of a robotic fish. The planetary plate external plate rotating device drives a planetary plate to rotate. The swing/flapping movement direction of a tail fin connection rod is changed by changing the position of a movement output point on a planet gear on a planet gear dividing circle. The engine-driven control mechanism drives a movable rack to rotate to achieve turning maneuver and rising and submerging of the robotic fish. The tail fin direction control mechanism controls the water striking angle of the tail fin to keep the tail fin at the optimal water striking angle. By means of the space engine-driven tail swing propelling plant, free switching between carangidae mode swimming and dolphin mode swimming is achieved, the mechanism principle and structural composition are simple, the tail fin movement is free of quick-return, and the space engine-driven tail swing propelling plant is suitable for being applied to power devices of automatic underwater crafts.

Description

technical field [0001] The invention relates to a bionic propulsion device, in particular to a tail swing type bionic propulsion power device. Background technique [0002] As the product of natural evolution, fishes have attracted more and more attention from scholars at home and abroad for their excellent swimming ability. The superb swimming ability of aquatic animals such as tuna and dolphins is incomparable to ships propelled by propellers. The tail fin propulsion mode adopted by them is considered to be the most efficient and fastest propulsion mode. This propulsion mode is also considered to be the future underwater The ultimate design goal of the automatic vehicle power plant has great application prospects in the fields of ocean observation, military surveillance, underwater operations and underwater rescue in complex ocean environments. [0003] After searching the literature of the prior art, it is found that the Chinese patent publication number: CN 101301926 B,...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the motion modes of robotic fish using tail fin swing propulsion mode are difficult to flexibly simulate the movement of the fish tail; the center of gravity adjustment mechanism or the drainage mechanism similar to the air bag of the fish body are used to realize the diving of the robotic fish, and the propulsion and diving are separated. It will reduce the space utilization rate, increase the complexity of the mechanism, and reduce the reliability

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