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Double-oar square-tube marine propulsor device

A technology of propulsion device and square tube, applied in ship propulsion, propulsion parts, ship parts, etc., can solve the problems of large cross-sectional area, large resistance, poor stability, etc., and achieve the effect of small cross-sectional area, low resistance and high efficiency

Inactive Publication Date: 2015-12-23
FOSHAN SHENFENG AVIATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional barreled propeller propeller is cylindrical, and the rotation plane of its blades is basically perpendicular to the opening direction of the casing. The cross-sectional area is large and the resistance is relatively large, especially at high speed. Due to the use of a single propeller, the rotation Large button torque, poor stability

Method used

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  • Double-oar square-tube marine propulsor device
  • Double-oar square-tube marine propulsor device

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Embodiment Construction

[0008] The present invention is described below in conjunction with accompanying drawing: with reference to accompanying drawing, a kind of double propeller square pipe ship propulsion device comprises left main shaft 1, left screw propeller 2, right main shaft 3, right propeller 4 and square tubular shell 5. Square tubular shell 5 is surrounded by left plate, top plate, right plate and bottom plate. The left main shaft 1 is installed on the left plate of the square tubular housing 5 by bearings. The left end of the left main shaft 1 is oblique to the left front and placed on the left side of the square tubular shell 5, and the right end of the left main shaft 1 is connected to the inside of the square tubular shell 5 with the left propeller 2. Right main shaft 3 is installed on the right plate of square tubular shell 5 by bearing. The right end of right main shaft 3 obliquely to right front and places the right outer side of square tubular shell 5, and the right end of right...

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Abstract

A double-oar square-tube marine propulsor device relates to a ship propulsor. The double-oar square-tube marine propulsor device comprises a left main shaft, a left propeller, a right main shaft, a right propeller and a square-tube-shaped housing. The left main shaft is mounted on the left plate of the square-tube-shaped housing through a bearing. The left end of the left main shaft is oriented to the left front direction and is arranged at the left outer side of the square-tube-shaped housing, and the right end is connected with the left propeller in the square-tube-shaped housing. The left propeller and the right propeller are symmetrical in a left-and-right direction. An included angle between the rotating plane of the left propeller and the rotating plane of the right propeller is smaller than 150 DEG. The rotating plane of the left propeller is perpendicular with the top board and the base board of the square-tube-shaped housing. The square-tube-shaped housing is in compact matching with the left propeller and the right propeller. A power is transmitted to the left propeller and the right propeller respectively through the left main shaft and the right main shaft. The rotation directions of the left propeller and the right propeller are opposite. Compared with a traditional marine propulsor, the double-oar square-tube marine propulsor device has advantages of higher efficiency and small resistance when a same flow is realized.

Description

technical field [0001] The utility model relates to a ship propulsion device with two propellers and a square tube, relating to a ship propulsion device, in particular to a square tube ship propulsion device. Background technique [0002] The traditional barreled propeller propeller is cylindrical, and the rotation plane of its blades is basically perpendicular to the opening direction of the casing. The cross-sectional area is large and the resistance is relatively large, especially at high speed. Due to the use of a single propeller, the rotation The button torque is large and the stability is poor. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a square-tube ship propulsion device with two propellers that has less resistance and the torque of the buttons cancels each other out. [0004] The technical solution of the present invention is: a double propeller square tube ...

Claims

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Application Information

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IPC IPC(8): B63H5/08B63H5/14
Inventor 王志成
Owner FOSHAN SHENFENG AVIATION SCI & TECH
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