Underwater oscillating propeller

A propeller and underwater robot technology, applied in the direction of mechanical gear transmission, etc., can solve the problems of low propeller rotation propulsion efficiency, small rotation angle, long transmission chain, etc., and achieve light weight, small transmission loss, and strong corrosion resistance Effect

Inactive Publication Date: 2014-02-12
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing propellers that provide power for underwater robots are vector propellers, which have the following disadvantages: some vector propellers directly vectorize the propeller blades, and due to the long transmission chain in the middle, the propeller rotation propulsion efficiency is reduced. Low; some vector propellers swing the blades through universal joints, and the rotation angle is small

Method used

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  • Underwater oscillating propeller

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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0012] refer to figure 1 , the underwater swinging propeller of the present invention includes an end cover 9 fixed on the sealed cavity 5 of the underwater robot, a propeller drive cavity 20 and a propeller blade 21, a fixed frame 4 with a round hole, a worm gear box 2, a worm gear Worm drive motor 1, oscillating output shaft 10, oscillating shaft 15, two rolling bearings 6, 7, two nylon bevel gears 13, 14 and two angular contact ball bearings 12, 18, the fixing frame 4 is fixed on the inner side of the end cover 9 , the worm gear box 2 and the worm drive motor 1 are fixed on the fixed frame 4, the round hole of the fixed frame 4 is coaxial with the round hole on the end cover 9, the swing output shaft 10 is fixed in the fixed frame 4 round hole The inner rings of the two rolling bearings 6 and 7 are fastened and rotatable, one end of the swing output shaft...

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Abstract

The invention discloses an underwater oscillating propeller which comprises an end cover fixed on the sealed cavity of an underwater robot, a propeller driving cavity, a propeller blade, a fixing rack with a round hole, a worm and gear box, a worm and gear driving motor, an oscillating output shaft, an oscillating shaft, two rolling bearings, two nylon bevel gears and two angular-contact ball bearings. The motor drives a worm and gear, and the rotating motion of an oscillating output shaft along an axial line is converted by a bevel gear pair to be horizontal oscillation of the propeller driving cavity through the oscillating shaft, so that the propeller can oscillate to provide a pushing force in the oscillating direction for the underwater robot. According to the invention, the integral oscillating propellers are adopted, the propellers require no additional transmission, the transmission loss is small, the high rotation-advancement efficiency of the propeller can be ensured, the angle of oscillation is larger, the structure is simple, and the mounting, maintenance and operation are reliable.

Description

technical field [0001] The invention relates to a thruster for powering an underwater robot. Background technique [0002] At present, the importance of ocean development is becoming more and more obvious, and some underwater robots that detect the ocean need to be equipped with propellers to provide power, and at the same time need to realize steering, so the swinging propeller can solve this problem well; [0003] The existing propellers that provide power for underwater robots are vector propellers, which have the following disadvantages: some vector propellers directly vectorize the propeller blades, and the propeller rotation propulsion efficiency is reduced due to the long transmission chain in the middle. Low; some vector propellers swing the blades through universal joints, and the rotation angle is small. Contents of the invention [0004] In order to overcome the above disadvantages, the object of the present invention is to provide a simple and reliable underwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H23/06
Inventor 杨灿军张绍勇彭时林王品复
Owner ZHEJIANG UNIV
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