A patch type piezoelectric drive double propeller underwater vector propulsion system and method thereof
A technology of piezoelectric drive and vector propulsion, which is applied to ship propulsion, propulsion components, piezoelectric effect/electrostrictive or magnetostrictive motors, etc. simple effect
Active Publication Date: 2022-04-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
However, the existing propeller vector propulsion system has many disadvantages, for example, the complex transmission structure leads to a variety of kinematic couplings, which reduces the transmission accuracy, and the body and motor are difficult to seal in the deep sea high pressure environment.
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[0060] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0061] 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.
[0062] Such as figure 1 As shown, the present invention discloses a patch-type piezoelectric-driven double-blade underwater vector propulsion system, which includes a piezoelectric drive unit, first to second propellers, and first to second rudders;
[0063] Such as figure 2 As shown, the piezoelectric driving unit includes a metal base, and first to eighth piezoelectric ceramic sheets;
[0064] The metal base includes a base, first to second actuating heads, first to second connec...
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The invention discloses a patch-type piezoelectric-driven double-blade underwater vector propulsion system and a method thereof. The system comprises a piezoelectric drive unit, two propellers and two rudders, and the piezoelectric drive unit comprises a metal base and eight electric ceramic sheet; the propeller includes a fixed shaft, rotating cylinder, n blades, preload bolts, springs and n actuating rods; the rudder includes a steering plate, two splints, four fixing bolts and two extension springs. The combination of forward and reverse propeller rotors adopted in the present invention rotates simultaneously so as to balance the deflection moment. The two rudders are preloaded via tension springs and piezoelectric drive units. When working, by applying different signals to the eight piezoelectric ceramic sheets, friction is generated to make itself move forward, backward or turn, and realize vector propulsion. The invention has a simple structure, no sealing device and complex transmission structure, and is directly driven by piezoelectric drive technology, which is easy to realize miniaturization and light weight.
Description
technical field [0001] The invention relates to the field of piezoelectric actuation and underwater propeller vector propulsion systems, in particular to a patch type piezoelectric drive dual propeller underwater vector propulsion system and a method thereof. Background technique [0002] The ocean plays a pivotal role in my country's national defense construction and economic development. Due to the needs of marine resource exploration and national defense construction, underwater propulsion systems have been greatly developed. The propeller vector underwater propulsion system is practical, reliable and convenient, and the technology is mature and easy to operate. It is the main research object of the underwater propulsion system. However, the existing propeller vector propulsion system has many disadvantages, for example, the complex transmission structure leads to a variety of kinematic couplings, which reduces the transmission accuracy, and the airframe and motor are di...
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IPC IPC(8): B63H21/17B63H25/24H02N2/02
CPCB63H21/17B63H25/24H02N2/02
Inventor 陈宇航金家楣刘瑞王亮
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS