Swing fin piezoelectric driving device and method
A piezoelectric drive, piezoelectric transducer technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, transportation and packaging, etc., can solve the problems of miniaturization and pressure resistance of unfavorable devices , sealing problems, etc., to achieve the effect of fast change of driving speed and direction, good electromagnetic compatibility and simple control
Active Publication Date: 2021-06-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF8 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Traditional unmanned submersible vehicle propulsion devices have complex structures, sealing problems and pressure resistance problems in deep sea applications, and are not conducive to the miniaturization of devices
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention.
[0042] The present invention combines the respective functions and characteristics of the autonomous underwater vehicle and the remote-controlled underwater vehicle, and combines the performance of the piezoelectric actuator, and proposes a deep-sea propulsion piezoelectric drive device and a micro-miniature autonomous underwater vehicle (AUV) used in reconnaissance and information collection. The method uses the inertial force as the energy transmission ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a swing fin piezoelectric driving device which comprises a bottom plate. An annular piezoelectric transducer is arranged on the working surface of the bottom plate and a rotating assembly is arranged concentrically with the piezoelectric transducer, the rotating assembly is connected with a plate spring, and the tail end of the plate spring is rotatably connected with a paddle; the piezoelectric transducer and the rotating assembly extrude the plate spring to enable the plate spring to be in a bent shape, and therefore pre-pressure is provided for the plate spring; limiting stop blocks are symmetrically arranged in the swing direction of the plate spring so as to limit the swing amplitude of the plate spring; and after an electric signal is applied to the piezoelectric transducer, micro-amplitude vibration is generated, excitation is provided for the pressed and bent plate spring, the reciprocating motion of the plate spring within a swing amplitude is achieved, and then the paddle is driven to complete paddling action. The invention further discloses a driving method which comprises the following steps: applying an electric signal to one or two groups of piezoelectric ceramic pieces to excite a second-order in-plane bending vibration mode of the piezoelectric transducer so that the pressed and bent plate spring rotates under the excitation of the piezoelectric transducer and drives the device to move.
Description
technical field [0001] The invention relates to the field of piezoelectric transducers, in particular to a swing fin piezoelectric driving device and method. Background technique [0002] Unmanned submersibles are unmanned, remote control or automatic control devices that navigate underwater. They mainly refer to intelligent systems that replace divers or manned small submarines for deep-sea exploration, lifesaving, and mine removal. . Therefore, unmanned underwater vehicles are also called "diving robots" or "underwater robots". Unmanned underwater vehicles are generally composed of skeletons and floating bodies, propulsion systems, navigation control systems, and detection systems. Some unmanned underwater vehicles are also equipped with mechanisms such as manipulators. [0003] Unmanned underwater vehicles are divided into autonomous underwater vehicle AUV and remotely controlled underwater vehicle ROV. AUV is not connected to the mother ship, and relies on its own p...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/00B63C11/52
CPCH02N2/001H02N2/005H02N2/006B63C11/52
Inventor 赵恒金家楣王亮刘瑞
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS