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A two-degree-of-freedom piezoelectric-driven deep-sea propulsion system and its working method

A piezoelectric drive and propulsion system technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, motor vehicles, etc., can solve the problems of difficult miniaturization and complex transmission mechanism, etc. Achieve the effect of light weight, small size and fast response

Active Publication Date: 2021-10-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing deep-sea propulsion mechanism needs to consider sealing and structural strength, the transmission mechanism is complicated, and it is not easy to miniaturize

Method used

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  • A two-degree-of-freedom piezoelectric-driven deep-sea propulsion system and its working method
  • A two-degree-of-freedom piezoelectric-driven deep-sea propulsion system and its working method
  • A two-degree-of-freedom piezoelectric-driven deep-sea propulsion system and its working method

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Embodiment Construction

[0045] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0046] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0047] like figure 1 As shown, the present invention discloses a two-degree-of-freedom piezoelectric-driven deep-sea propulsion system, including a blade, a two-degree-of-freedom rotor, an ultrasonic motor and a preload module;

[0048] like figure 2 As shown, the blade includes a blade body, a first connecting rod and a second connecting rod, wherein one end of the first connecting rod is coaxially fixed to the root of the blade, and the end of the second connecting rod One end is f...

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Abstract

The invention discloses a two-degree-of-freedom piezoelectric-driven deep-sea propulsion system and a working method thereof. The deep-sea propulsion system includes blades, a two-degree-of-freedom rotor, an ultrasonic motor and a preload module. The paddle is fixed on the two-degree-of-freedom rotor, and the inner wall of the two-degree-of-freedom rotor is provided with an annular protrusion to limit the running track of the rotor. Bearings are installed on the two limiting parts, and the shaft ends of the limiting parts are hemispheres. Threaded holes are provided on the support plate, threads are provided on the top cone, and the support plate and the top cone are connected together. By changing the relative position of the top cone and the support plate, the preload provided by the spring can be adjusted. The driving device used is an ultrasonic motor. There are four driving feet on the front of the square plate, and four piezoelectric ceramic sheets are pasted on the back of the square plate. The two-degree-of-freedom rotor is closely attached to the four actuating feet during operation, and the rotor is moved by the frictional force given to the two-degree-of-freedom rotor by the actuating feet.

Description

technical field [0001] The invention relates to the field of ultrasonic motors, in particular to a two-degree-of-freedom piezoelectric-driven deep-sea propulsion system and a working method thereof. Background technique [0002] In the past few decades, a series of strategies and technologies have been used to study the ocean. Among them, unmanned submersibles, as the "new role" of modern marine equipment, will surely help my country's underwater scientific research and combat systems achieve leapfrog development. Accelerate the construction of a "marine power". The existing deep-sea propulsion mechanism needs to consider sealing and structural strength, and the transmission mechanism is complex and not easy to miniaturize. Compared with traditional thrusters, the advantages of piezoelectric-driven deep-sea propulsion devices are: 1. Simple structure and easy miniaturization; 2. Fully open structure (no need to consider sealing and strength issues); 3. Strong environmental a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63G8/08B63G8/00B63C11/52H02N2/10H02N2/12H02N2/14
CPCB63C11/52B63G8/001B63G8/08B63G2008/002H02N2/103H02N2/12H02N2/142
Inventor 陈迪金家楣王亮刘瑞赵恒
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS