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Bionic fishtail structure of eccentric gear drive

An eccentric wheel and fish tail technology, applied in the field of bionics, can solve the problems of heavy bionic fish and inability to simulate complex motion, and achieve the effects of light weight, simple structure and high efficiency

Active Publication Date: 2018-04-17
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve the miniaturization, flexibility and range of motion of the bionic fish, if the structure is too complex, the bionic fish is too heavy, and at the same time limited by the material, it is impossible to simulate the complex movements of fish such as Spanish mackerel and tuna

Method used

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  • Bionic fishtail structure of eccentric gear drive
  • Bionic fishtail structure of eccentric gear drive

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0012] combine figure 1 with figure 2 , the present invention includes tail handle height 1, fish tail, eccentric wheel 4, micro motor 3, fish tail includes tail part 2, middle rod 6 and body part 5, wherein material selection: eccentric wheel selects carbon fiber composite material, tail handle height and fish The tail chooses glass fiber polyurethane composite material, which has smaller elastic modulus, lower stiffness, better flexibility and larger deformation than carbon fiber epoxy composite material. The micro-motor of the present invention is driven by a whole set of micro-DC motors from the Swiss maxon motor company, and has small volume, light weight and large torque. The micromotor is matched with a reducer and an encoder. The eccentric wheel 4 is connected with the micro motor 2, and the eccentric wheel 4 and the body ...

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Abstract

The invention provides a bionic fishtail structure driven by an eccentric wheel. The bionic fishtail structure comprises a deep caudal peduncle, a fishtail, the eccentric wheel and a micro-motor, wherein the deep caudal peduncle and the fishtail are prepared from a fiber reinforced composite material; the micro-motor and the eccentric wheel are contained in the deep caudal peduncle, the motor drives the eccentric wheel to move, and a tail fin of the structure is enabled to move. The bionic fishtail structure can realize complicated motion of fish such as Spanish mackerels, tunas and the like adopting a BCF (body-caudal fin flapping) propulsion mode, and has the advantages of high efficiency, low cost, light weight, simple structure and the like.

Description

technical field [0001] The invention relates to a bionic structure, in particular to a bionic fishtail structure driven by an eccentric wheel, which belongs to the field of bionics. Background technique [0002] With the continuous progress and development of underwater bionics, robotics, new materials and other disciplines, as well as the increasing demand for offshore development, bionic fish that resemble fish has become a research hotspot in the field of machinery. Bionic fish can explore and in-depth study of seafloor animal and plant resources, and is widely used in underwater environment detection, port monitoring, search and rescue operations, humanitarian demining, coastal security, fishery management, anti-terrorism operations and military operations, etc. The research on the propulsion mode of fish has become the basis of bionic fish. The propulsion mode of fish is divided into jet type, BCF propulsion mode (caudal fin propulsion), MPF propulsion mode (pectoral fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H1/36
CPCB63H1/36
Inventor 王立权张璐瑶王刚杨圣喜
Owner HARBIN ENG UNIV
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