Squid-mantle-like pulse type water-spraying propulsion device
A water-jet propulsion and pulse-type technology, which is applied in the field of ships, can solve problems such as steering and reversing problems, complex structures, etc., and achieve the effect of flexible steering and good reliability
Inactive Publication Date: 2012-05-16
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology
But the defect of this kind of bionic propeller is that the structure is relatively complicated, and the steering and reversing are not working well.
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[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 casing 4, the flange cover 2 is fixedly connected to the hull, and the flange cover 2 and the bearing casing 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. The outer wall of the piston cylinder 16 has a boss, 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...
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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 andare 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 bionics technology continues to develop. The principle of underwater bionics is to imitate squids and other cephalopods. These animals can achieve rapid movement with the help of water jets, and the water in the body cavity is removed from a narrow funnel through muscle contraction. The nozzle jets out at high speed, and this process is repeated continuously to produce pulse thrust. The underwater bionic propulsion designed according to this principle has been widely used in ships. However, the disadvantage of this kind of bionic propeller is that the structure is relatively complicated, and the steering and reversing are difficult to understand. Summary of the invention [0003] The purpose of the present invention is to provide a squid-like pulse water jet propulsion device with simple struct...
Claims
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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