Paster type piezoelectric driving double-paddle type underwater vector propulsion system and method thereof

Abstract

The invention discloses a patch type piezoelectric driving double-propeller underwater vector propulsion system and method, the system comprises a piezoelectric driving unit, two propellers and two rudders, and the piezoelectric driving unit comprises a metal matrix and eight piezoelectric ceramic parts; the propeller comprises a fixed shaft, a rotating drum, n blades, a pre-tightening bolt, a spring and n actuating rods; the rudder comprises a direction plate, two clamping plates, four fixing bolts and two tension springs. The forward and reverse propeller rotor combination adopted by the invention rotates simultaneously to balance deflection torque. the two rudders generate precompression with the piezoelectric driving unit through the tension spring. In the working process, different signals are applied to the eight piezoelectric ceramic parts, friction is generated, the piezoelectric ceramic parts advance, retreat or steer, and vector propulsion is achieved. The structure is simple, no sealing device and no complex transmission structure exist, the piezoelectric driving technology is adopted for direct driving, and miniaturization and light weight are easy to achieve.

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...

AI Technical Summary

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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