Squid-mantle-like pulse type water-spraying propulsion device

A water-jet propulsion, pulsed technology, applied in the field of ships, can solve the problems of ineffective steering and reversing, complex structure, etc., and achieve the effect of flexible steering and good reliability.

Inactive Publication Date: 2010-10-27
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the defect of this kind of bionic propeller is that the structure is r

Method used

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  • Squid-mantle-like pulse type water-spraying propulsion device
  • Squid-mantle-like pulse type water-spraying propulsion device
  • Squid-mantle-like pulse type water-spraying propulsion device

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Example Embodiment

[0011] Such as figure 1 , 2 As shown, the middle part of the water spray box 9 and the lower end of the piston cylinder 16 are fixed with a spiral sleeve 12 so that the water spray box 9 and the piston cylinder 16 are vertically connected. The upper end of the piston cylinder 16 is sleeved with a flange cover 2 and a bearing jacket 4, the flange cover 2 is fixed on the hull, and the flange cover 2 and the bearing jacket 4 are fixedly connected by screws. Two thrust bearings 15 are installed between the inner wall of the bearing housing 4 and the outer wall of the piston cylinder 16, that is, the bearing housing 4 is sleeved outside the two thrust bearings 15. There is a boss on the outer wall of the piston cylinder 16, and a thrust bearing 15 is installed on the upper and lower sides of the boss. The two thrust bearings 15 can ensure that the flange cover 2 and the bearing housing 4 are fixed. A bearing sleeve bottom cover 14 is fixed at the lower end of the bearing housing 4, ...

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Abstract

The invention discloses a squid-mantle-like pulse type water-spraying propulsion device in the field of ships, comprising a driving shaft connected with a ship body, wherein a driving gear is fixed on the driving shaft; a driven gear meshed with the driving gear is fixedly sleeved in the middle of a piston cylinder; the lower end of the piston cylinder is vertically communicated with the middle of a water-spraying tank; the piston cylinder is internally provided with rotating bearings as well as a piston rod and a piston which are coaxial; a flange is arranged on the inner wall of the piston; the upper end of the piston rod extends out of the piston cylinder; a shaft shoulder is arranged at the lower end of the piston rod; the rotating bearings are arranged on the flange in the piston and are fixed on the shaft shoulder of the piston rod; a water-absorbing one-way valve is arranged at one end of a water-spraying tank; a water-spraying one-way valve is arranged at the other end of the water-spraying tank; a flange cover fixedly connected with the ship body and a bearing bush jacket fixedly connected with the flange cover are sleeved at the upper end of the piston cylinder; and two thrust bearings are arranged between the inner wall of the bearing jacket and the outer wall of the piston cylinder. The invention has the advantages of favorable reliability, flexible steering, any steering in a range of 360 degrees and simultaneous finishing of water absorbing and spraying actions.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a water jet propulsion device for ships. Background technique [0002] At present, underwater bionic technology continues to develop. The principle of underwater bionics is to imitate squid and other cephalopods. These animals can achieve rapid movement with the help of water jet propulsion, and the water in the body cavity is transferred from the narrow funnel-shaped The nozzle sprays out at high speed, and the repetition of this process produces pulsed thrust. The underwater bionic propeller designed according to this principle has been widely used in ships. But the defect that this kind of bionic propeller exists is that the structure is relatively complicated, and the steering and reversing are ineffective. Contents of the invention [0003] The object of the present invention is to provide a squid-imitation pulse water jet propulsion device with simple structure, flexible s...

Claims

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Application Information

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IPC IPC(8): B63H11/02
Inventor 李力军王志东丛文超晋文菊吴贺贺杨爽陈明明
Owner JIANGSU UNIV OF SCI & TECH
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