Unlock instant, AI-driven research and patent intelligence for your innovation.

Integrated contra-rotating propeller

A technology of counter-rotating propellers and propellers, applied in the directions of ship propulsion, propulsion parts, ship parts, etc., can solve the problem of low use efficiency of single propeller, achieve the effect of improving overall integration, easy installation and maintenance, and reducing noise

Active Publication Date: 2016-09-14
ZHEJIANG UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the efficiency of using it as a single paddle is still low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Integrated contra-rotating propeller
  • Integrated contra-rotating propeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Below in conjunction with accompanying drawing, the present invention will be further described, present embodiment is carried out under the premise of technical scheme of the present invention, has provided detailed implementation mode and concrete operation process, but protection scope of the present invention is not limited to following implementation examples .

[0021] Such as figure 1 , figure 2 As shown, this embodiment includes: an aluminum alloy conduit 2, an aluminum alloy bracket 4, a counter-rotating propeller 5, a thrust bearing 6, a sealed cavity 1, a hydraulic joint 12, an inner stator excitation armature 13 of a permanent magnet synchronous motor, and a The outer rotor includes rare earth permanent magnets 16 and yokes 15 .

[0022] The counter-rotating propeller 5 is made of stainless steel and includes two forward and reverse rotating three-bladed propellers 14 and three-bladed propellers 18. The hub 3 of each propeller is equipped with a motor and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an integrated thruster for contra-rotating propellers. The integrated thruster for the integrated contra-rotating propellers mainly comprises a guide pipe, the propellers, a permanent magnetic synchronous motor and thrust bearings. The pair of contra-rotating propellers are integrally installed with motor outer rotors and are directly driven by excitation of armatures of the permanent magnetic synchronous motor arranged in a sealing cavity, and thrust generated by the propellers is transmitted by the water lubricating thrust bearings. The armatures of the motor are installed and positioned through a middle connecting piece and is installed in the sealing cavity after being sleeved with a stainless steel protection sleeve. The whole sealing cavity is filled with pressure compensation liquid and stretches out to a connecting piece on the outer side of the guide pipe from the interior of a support together with a wire through a through hole. The integrated thruster for the integrated contra-rotating propellers is simple in structure, high in integration, easy to install and maintain and capable of achieving high efficiency and low noise of a propelling system under the water or on the water surface, and can be matched with an external pressure compensator to serve as a thrust source to work in the whole-sea-depth range.

Description

technical field [0001] The invention relates to an underwater propulsion device, relates to an integrated counter-rotating propeller propeller, in particular to a propeller integrating a motor rotor in a counter-rotating ducted propeller hub, which is suitable for underwater vehicles or for power Positioned electric propulsion unit. Background technique [0002] The thrust system is a power device widely used in surface or underwater vehicles, mainly used to propel the vehicle to sail, or to provide controllable force and torque to adjust the equipment to a desired position and attitude. [0003] The propulsion system currently used as an underwater vehicle is usually combined with a single motor connected to the propeller through a shaft system to rotate and cooperate with a conduit. However, due to the use of some rolling thrust bearings and gears, the overall noise is too high and usually requires additional The shaft seal or magnetic coupling is connected to the propell...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B63H5/10B63H5/14
CPCB63H5/10B63H5/14B63H2005/106B63H2005/1258
Inventor 蔡敏健杨灿军吴世军
Owner ZHEJIANG UNIV