Piezoelectric-driven floating underwater robot and working method thereof

An underwater robot, piezoelectric drive technology, applied in the direction of underwater operation equipment, generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, etc., can solve the problem that the underwater robot's diving depth is difficult to increase , The weight of the hydraulic device is heavy, and it is difficult to achieve light weight, etc., to achieve the effect of simple and reliable water isolation, high stealth, and increased diving depth

Active Publication Date: 2019-02-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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Problems solved by technology

At the same time, the efficiency of the electromagnetic motor drops sharply after the size is reduced, and it is difficult to meet the needs of miniaturization; the weight of the hydraulic device is large, and it is difficult to meet the requirements of light weight
Therefore, it is difficult to increase the diving depth of the existing underwater robots, and it is difficult to miniaturize the structure size.

Method used

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  • Piezoelectric-driven floating underwater robot and working method thereof
  • Piezoelectric-driven floating underwater robot and working method thereof
  • Piezoelectric-driven floating underwater robot and working method thereof

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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] Such as figure 1 As shown, the present invention discloses a piezoelectric-driven floating underwater robot, comprising a patch piezoelectric vibrator, a first propeller, a second propeller, a first fixing plate, a second fixing plate, a first elastic belt and Second elastic band.

[0048] Such as figure 2 , image 3 As shown, the patch piezoelectric vibrator includes a metal base and four piezoelectric ceramic pieces; the metal base includes a first actuating head, a secon...

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Abstract

The invention discloses a piezoelectric-driven floating underwater robot and a working method thereof. The piezoelectric-driven floating underwater robot comprises a patch type piezoelectric vibrator,two propellers, two fixing plates and two elastic tapes. Circular arc actuating heads are arranged at two ends of the patch type piezoelectric vibrator; and a cross-shaped clamping mechanism with a through hole is arranged in the middle of the patch type piezoelectric vibrator. The spiral line directions of blades of the two propellers are reverse to each other. The patch type piezoelectric vibrator is fixed between the two fixing plates; rotating shafts of the two propellers are correspondingly clamped in open grooves in the two ends of the two fixing plates; and the two elastic tapes correspondingly sleeve the two sides of the rotating shafts of the two propellers and are in a stretched state so that outer propeller hubs of the two propellers correspondingly abut against the actuating heads at the two ends of the patch type piezoelectric vibrator. During working, the patch type piezoelectric vibrator is excited, the circular arc actuating heads at the two ends of the patch type piezoelectric vibrator generate elliptical motions with reverse rotation directions, and the two propellers are driven to rotate under the action of friction so as to realize the motion of the underwaterrobot.

Description

technical field [0001] The invention relates to the fields of piezoelectric actuation and underwater robots, in particular to a piezoelectric-driven floating underwater robot and a working method thereof. Background technique [0002] Due to the needs of exploration and exploitation of marine resources, underwater robots have been greatly developed. [0003] At present, underwater robots mostly use electromagnetic motor or hydraulic drive schemes. If the diving depth continues to increase, it will be difficult for underwater robots to adapt to high water pressure conditions, and in-depth research on sealing and pressure compensation is still needed. At the same time, the efficiency of the electromagnetic motor drops sharply after the size is reduced, and it is difficult to meet the needs of miniaturization; the weight of the hydraulic device is large, and it is difficult to meet the requirements of light weight. Therefore, it is difficult to improve the diving depth of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63G8/00B63G8/08B63G8/16H02N2/00
CPCH02N2/00H02N2/001H02N2/005B63G8/001B63G8/08B63G8/16
Inventor 于鹏鹏金家楣王方一叶子龙
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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