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Driving and driven hybrid fishtail-like underwater propulsion device

A hybrid drive and propulsion device technology, applied in the direction of mechanical gear transmission, non-rotating propulsion elements, etc., can solve the problems of low efficiency, large robotic fish head, severe friction, etc.

Pending Publication Date: 2018-03-06
钟勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this invention uses too many joints, resulting in serious friction and low efficiency
Moreover, two pairs of wires and two motors are required to drive the S-shaped swing, resulting in a relatively large head of the robot fish.
[0007] Therefore, the existing technology still needs to be improved and developed

Method used

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  • Driving and driven hybrid fishtail-like underwater propulsion device
  • Driving and driven hybrid fishtail-like underwater propulsion device
  • Driving and driven hybrid fishtail-like underwater propulsion device

Examples

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Embodiment Construction

[0027] The specific implementations and examples of the present invention will be described in detail below in conjunction with the accompanying drawings. The described specific examples are only used to explain the present invention, and are not intended to limit the specific implementations of the present invention.

[0028] Such as figure 1 as shown, figure 1 It is a perspective view of the active and driven hybrid imitation fishtail underwater propulsion device of the present invention in a straight line state. Part 1 is composed of multiple joints 2-1, 2-2, 2-3, 2-4, 2-5, two driving wires 3-1, 3-2, and a flexible rod 4. The end face of the driven part 1 is fixed together with the end face of the joint 2-5, and the joints 2-1, 2-2, 2-3, 2-4, 2-5 are hinged back and forth in sequence. There is a through hole on both sides of the joints 2-1, 2-2, 2-3, 2-4, and 2-5, and one end of the driving wire 3-1, 3-2 passes through the joints in turn. 2-1, 2-2, 2-3, 2-4, 2-5 through...

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Abstract

The invention relates to the field of underwater vehicles, specifically to a driving and driven hybrid fishtail-like underwater propulsion device. A driving motion part of the driving and driven hybrid fishtail-like underwater propulsion device comprises a plurality of joints, flexible plastic plates, a flexible rod and driving lines; a driven part of the driving and driven hybrid fishtail-like underwater propulsion device is a fishtail made by injection molding of a flexible material; and the driven part of the driving and driven hybrid fishtail-like underwater propulsion device has deformation and returning capacity. Through holes are formed in the joints; two ends of the joints are cylindrical surfaces which are rotationally linked; line holes are formed in the left and right external sides of the joints; and clamping grooves are formed in the upper and lower external sides of the joints. The joints are connected with each other in series through the flexible rod; and the driving lines in a pair pass through the line holes in the left and right external sides of the joints and are connected to the last joint. The flexible plastic plates are similar to fish fins in shape and fixed on the upper and lower external sides of the joints through the clamping grooves. The driving part is driven by the driving lines to perform reciprocating swing, and the driven part moves with the driving part and generates a delay to form S-shaped motion. The driving and driven hybrid fishtail-like underwater propulsion device has the advantages of high propelling efficiency, small noise, lessdrivers and low cost and is very suitable for small- and medium-sized underwater vehicles or water surface vehicles.

Description

technical field [0001] The invention relates to the field of underwater vehicles, in particular to an active and driven hybrid imitation fishtail underwater propulsion device. Background technique [0002] The ocean occupies about 71% of the earth's surface area and is rich in resources. In recent years, there has been a wave of research on underwater vehicles, among which bionic robotic fish is a typical representative. The bionic robot fish is a device that uses machinery, electronic components or smart materials to realize underwater propulsion by referring to the swimming mechanism of fish. Compared with the traditional propeller drive, the imitation fishtail propulsion device generates thrust through the reciprocating swing of the fishtail. The swing frequency is low, the noise is low, and the propulsion efficiency is high. It can not only realize propulsion but also control the direction. [0003] At present, there are more and more underwater devices that imitate the...

Claims

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Application Information

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IPC IPC(8): B63H1/36B63H23/06B63H23/02
CPCB63H1/36B63H23/02B63H23/06
Inventor 钟勇杜如虚
Owner 钟勇
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