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Family ostraciidae fish-based double degree-of-freedom bionic caudal fin propulsion mechanism

A technology of propulsion mechanism and degree of freedom, applied in the field of dual-degree-of-freedom bionic caudal fin propulsion mechanism, can solve problems such as low propulsion efficiency and poor maneuverability, and achieve good maneuverability, high applicability, and smooth rotation

Inactive Publication Date: 2016-10-26
PEKING UNIV
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The caudal fin propulsion mechanism can only realize the swing of 90° left and right of the fan-shaped caudal fin, the propulsion efficiency is low, and the maneuverability is poor

Method used

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  • Family ostraciidae fish-based double degree-of-freedom bionic caudal fin propulsion mechanism
  • Family ostraciidae fish-based double degree-of-freedom bionic caudal fin propulsion mechanism
  • Family ostraciidae fish-based double degree-of-freedom bionic caudal fin propulsion mechanism

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Embodiment Construction

[0027] like Figure 1-Figure 5 As shown, the present invention is based on the two-degree-of-freedom bionic caudal fin propulsion mechanism of boxfish family fish, including a fixed frame 1, a first swing mechanism, a second swing mechanism, and a bionic tail fin 2, and the first swing mechanism includes a first steering gear 3, a second swing mechanism A rudder plate 31, a first gear set, a first power transmission module 4, a large synchronous pulley 32, a small synchronous pulley 33, a toothed belt 34, a rotating rod 35, the first steering gear 3 is installed on the fixed frame 1, The output end of the first steering gear 3 is connected with the first steering wheel 31, and the first gear set includes first and second spur gears 36,37 meshingly connected, and the transmission ratio of the first and second spur gears 36,37 is 1 : 1, the first spur gear 36 is connected with the first steering wheel 31.

[0028] The first power transmission module 4 includes a first output sh...

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Abstract

The invention belongs to the technical field of underwater autonomous bionic robotic fish, and aims to provide a dual-degree-of-freedom bionic caudal fin propulsion based on boxfish family fish that enables the boxfish-like robotic fish to have higher propulsion efficiency and good maneuverability The mechanism transmits the rotation of the first steering gear through the first gear set and the first power transmission module, and realizes the swing of the bionic tail fin through the action of the large and small synchronous pulleys and the toothed belt, and the bionic tail fin can swing left and right by a β angle; The rotation of the second steering gear is transmitted through the second gear set and the second power transmission module, and converted into the overall swing of the C-shaped bracket and the tail fin. The C-shaped bracket can swing left and right at an angle of α. The superposition of swings is the final swing state of the caudal fin. By adopting the bionic caudal fin with two degrees of freedom, the boxfish-like robotic fish has higher propulsion efficiency and good maneuverability characteristics, and realizes multi-modal movement.

Description

technical field [0001] The invention belongs to the technical field of underwater autonomous bionic robot fish, in particular to a dual-degree-of-freedom bionic caudal fin propulsion mechanism based on boxfish family fish. Background technique [0002] The practical application of bionic robot fish in exploring marine resources, collecting seawater information, observing underwater organisms at close range, and underwater archaeology has made the research on bionic robot fish more and more aroused the interest of researchers. Relying on relevant technical achievements and research discoveries in mechanical manufacturing technology, electronic design technology, material science, and biological science, humans have successfully realized the development of bionic robot fish, and carried out the swimming of real fish with the bionic robot fish entity. research on properties. [0003] The bionic robot fish can realize multi-modal movement through the coordinated movement of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H1/36
CPCB63H1/36
Inventor 谢广明郑兴文王伟王晨范瑞峰
Owner PEKING UNIV
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