Mechanism for adjusting center of gravity of underwater glider

Abstract

The invention relates to a mechanism for adjusting the center of gravity of an underwater glider. A traditional mechanism for adjusting the center of gravity of the underwater glider has low precision and a short service life. The mechanism for adjusting the center of gravity of the underwater glider comprises a linear guide rail. Both ends of the linear guide rail are respectively and fixedly provided with a pre-tightening fixed block; the center of the linear guide rail is fixedly provided with an adjusting fixed block; the linear guide rail between each pre-tightening fixed block and the adjusting fixed block is movably provided with a pre-tightening slider and an adjusting slider; the pre-tightening slider and the adjacent pre-tightening fixed block are movably connected through an adjusting bolt; the position between the pre-tightening slider and the pre-tightening fixed block is adjusted through rotating the adjusting bolt; each adjusting slider is connected with the adjusting fixed block through an adjusting spring; and the adjacent pre-tightening slider and the adjusting slider are connected through a martensite memory alloy wire. The mechanism for adjusting the center of gravity of the underwater glider has the advantages of simple structure, convenience in manufacturing and maintenance, good durability and corrosion resistance, long service life and the like.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a center-of-gravity adjustment mechanism, in particular to an underwater glider center-of-gravity adjustment mechanism utilizing the characteristics of a shape memory alloy. technical background [0002] Underwater glider is a new type of underwater vehicle developed by combining buoy technology and underwater robot technology to meet the needs of current marine environment monitoring and measurement. It can not only carry out monitoring operations along the vertical profile, but also carry out large-scale marine environment measurement and monitoring in the horizontal profile. The underwater glider center of gravity adjustment system changes the relative position of the center of gravity of the carrier and the center of buoyancy by adjusting the mass distribution inside the carrier, so as to generate rolling moment and pitching moment, and realize the rotation and pitching of the...

AI Technical Summary

Problems solved by technology

The commonly used center of gravity adjustment mechanism design has the following schemes: 1) liquid pumping mode adjustment mechanism, in order to change the center of gravity position quickly, this mechanism needs a large amount of working solution, resulting in increased body volume; 2) synchronous belt drive weight before and after For the motion plan, as the working time increases, the pulley is easy to loosen, resulting in tooth skipping; 3) The crank slider mechanism drives the heavy block motion plan, because the body is small, the swing diameter is small, and the moving distance of the heavy block is affected. 4) The movement scheme of the trapezoidal screw transmission heavy block, due to the sliding contact, the transmission efficiency is low and the wear is serious; 5) The movement scheme of the ball screw transmission heavy block, the wear of the ball is relatively serious

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