Bionic fishtail propelling mechanism

Abstract

The invention discloses a bionic fishtail propelling mechanism. The mechanism comprises an elastic swing plate, a first cavity, a second cavity, a hydraulic driving mechanism and a transmission surface, wherein the first cavity and the second cavity are distributed on the two sides of the elastic swing plate and contain a driving liquid; the hydraulic driving mechanism is used for controlling thepressure of liquids in the first cavity and the second cavity; and the transmission surface is arranged between the elastic swing plate and the first cavity or the second cavity, and the elastic swingplate is driven by the pressure of the first cavity and the pressure of the second cavity to do bending swing motion. According to the bionic fishtail propelling mechanism, the elastic swing plate, the first cavity and the second cavity are introduced, the first cavity and the second cavity are located on the two sides of the elastic swing plate, stress control over the middle elastic swing plateis achieved through the two cavities, then a swing direction and a swing frequency of the swing plate are controlled, finally, the bionic fishtail propelling mechanism is controlled, control is moreflexible, and control precision is higher.

Description

technical field [0001] The invention relates to a propulsion mechanism, in particular to a high-efficiency bionic fishtail propulsion mechanism. Background technique [0002] Due to its flexible control and high driving efficiency, the bionic fishtail swing driving mechanism is more and more widely used in the field of mechanical driving. At present, the bionic fishtail swing driving mechanism is generally divided into: 1. The bionic fishtail driving mechanism driven by a mechanical structure. 2. Bionic fishtail drive mechanism through new smart materials. 3. Bionic fishtail drive mechanism driven by wire traction. 4. Bionic fishtail drive mechanism driven by hydraulic means. [0003] The existing bionic fishtail swing drive mechanisms driven by mechanical structures generally have complex structures, large volumes, and high failure rates. The existing bionic fishtail drive mechanism using new smart materials has different problems for different smart materials: it is di...

AI Technical Summary

Problems solved by technology

[0003] The existing bionic fishtail swing driving mechanism driven by mechanical structure generally has complex structure, large volume and high failure rate

The existing bionic fishtail drive mechanism using new smart materials has different problems for different smart materials: it is difficult to guarantee the temperature control accuracy when adjusting the temperature to realize the drive, and the voltage is as high as thousands of volts to realize the drive by adjusting the voltage. slow phase change

The existing bionic fishtail drive mechanism driven by wire traction, through the wire traction and combined with mechanical devices, has complex structure, large volume, and high difficulty in control

The existing bionic fishtail drive mechanism driven by hydraulic means needs to adopt a specific cavity structure, resulting in low drive hydraulic efficiency and requiring a large amount of liquid to drive

[0004] In short, the existing bionic fishtail swing driving mechanism generally has the defects of low driving efficiency, low driving accuracy, and insufficient flexibility.

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