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An underwater propulsion device driven radially by sma wire

A technology for a propulsion device and a drive assembly, applied in the field of robots, can solve problems such as poor underwater stealth performance and noise, and achieve the effect of improving concealment and survivability

Active Publication Date: 2021-11-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing propeller underwater propulsion system generates noise and causes poor underwater stealth performance, and further provides an underwater propulsion device driven radially by SMA wire

Method used

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  • An underwater propulsion device driven radially by sma wire
  • An underwater propulsion device driven radially by sma wire
  • An underwater propulsion device driven radially by sma wire

Examples

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specific Embodiment approach 1

[0028] Specific implementation mode one: combine Figure 1-9 Describe this embodiment, an underwater propulsion device driven radially by SMA wire, which includes a cavity 1, an outlet check valve 2, an inlet check valve 3, an SMA wire drive assembly 4 and a number of radial beading bars 5,

[0029] The cavity 1 is made of elastic rubber and has a cylindrical structure. Baffles 6 are integrally connected to both ends of the cavity. The two baffles 6 are coaxially provided with through holes. The outlet check valve 2 and the The inlet one-way valves 3 are installed in two through holes in one-to-one correspondence, and a number of radial pressure bars 5 are evenly fixed on the surface of the cavity 1 in the circumferential direction and are all arranged parallel to the central axis of the cavity 1. The SMA wire drive assembly 4 Coaxially sleeved on the cavity 1 and in close contact with the cavity 1, the radial bead 5 is located between the SMA wire drive assembly 4 and the cav...

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Abstract

The utility model relates to an underwater propulsion device radially driven by SMA wire, which belongs to the technical field of robots. The invention solves the problem that the existing propeller underwater propulsion system generates noise and causes poor underwater stealth performance. The cavity is made of elastic rubber and has a cylindrical structure. Baffles are integrally connected to both ends of the cavity. Through holes are coaxially opened on the two baffles. The outlet one-way valve and the inlet one-way valve One-to-one correspondence is installed in the two through holes, a number of radial beadings are evenly fixed on the surface of the cavity in the circumferential direction and are all arranged parallel to the central axis of the cavity, and the SMA wire drive assembly is coaxially sleeved on the cavity and In close contact with the cavity, the radial bead is located between the SMA wire drive assembly and the cavity. The SMA wire drive assembly shrinks radially along the cavity when it is powered on, and recovers when it is powered off. By controlling the rapid power on and off of the SMA wire, the silent and continuous propulsion action of the entire propulsion device can be realized.

Description

technical field [0001] The invention relates to an underwater propulsion device, in particular to an underwater propulsion device radially driven by SMA wires, and belongs to the technical field of robots. Background technique [0002] Traditional underwater propulsion devices are generally propelled by propellers, which will generate a certain amount of noise during travel. For underwater detectors and other devices for military use, this shortcoming has an important impact on acoustic stealth, underwater acoustic communication and navigation, etc., resulting in poor underwater concealment performance, which is not conducive to the concealment and survival of underwater detection devices. Contents of the invention [0003] The invention aims to solve the problem of poor underwater stealth performance caused by the noise generated by the existing propeller underwater propulsion system, and further provides an underwater propulsion device driven radially by SMA wires. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H11/02B63H23/32
CPCB63H11/02B63H23/32
Inventor 杨飞岳洪浩阮琪邓宗全陆一凡
Owner HARBIN INST OF TECH