CN209274867U - A kind of magnesium alloy ducted propeller - Google Patents
A kind of magnesium alloy ducted propeller Download PDFInfo
- Publication number
- CN209274867U CN209274867U CN201822000810.3U CN201822000810U CN209274867U CN 209274867 U CN209274867 U CN 209274867U CN 201822000810 U CN201822000810 U CN 201822000810U CN 209274867 U CN209274867 U CN 209274867U
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- Prior art keywords
- conduit
- magnesium alloy
- propeller
- ducted
- utility
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Abstract
The utility model discloses a kind of magnesium alloy ducted propellers, including the jacket being connect with hull tail portion, the jacket lower connection conduit, the catheter interior is equipped with propeller hub, three blades are along the circumferential direction uniformly fixed on the propeller hub, the wavelike structure that the catheter surface is made of concavo-convex protrusion, the blade are made of magnesium alloy materials.The blade of the utility model uses magnesium alloy materials, weight substantially reduces, and reduces ship resistance, and the up-front concaveconvex structure of conduit can make the influent stream of ducted propeller more close to catheter surface, fluid in conduit is not susceptible to fluid separation, improves the influent stream situation in conduit；Meanwhile the protrusion of conduit rear can improve the stream trailing vortex out of conduit, reduce the energy loss for leading tube fluid, increase the speed of the interior stream out of conduit, and then improve the propulsive efficiency of ducted propeller.
Description
Technical field
The utility model relates to technical field of ships, more specifically, it relates to a kind of magnesium alloy ducted propeller.
Background technique
Propeller is the propeller form being most widely used on current various ships, can be by 70% or so machine
Tool power-conversion is propulsive force, has many advantages, such as that simple structure, cheap, easy to use and efficiency are higher.Ducted propeller
As a kind of extraordinary propeller, have the advantage that ducted propeller in the slow-speed of revolution i.e. when overloaded compared to traditional propeller
Propulsive efficiency with higher, so being widely used on ship at present；In addition, ducted propeller when overloaded also have compared with
Good anti-cavitation performance；The conduit of ducted propeller, which is also used as rudder, to be come using can be improved the maneuverability of ship.However,
Existing ducted propeller blade mostly uses cast-iron structure, and weight is larger, affects the route speed of ship, and conduit is mostly cylinder
Face structure, it is limited to the improvement effect of propulsive performance.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of magnesium alloy ducted propeller,
Portable construction reduces ship resistance, improves influent stream and wake flow, improves the propulsive efficiency of ducted propeller.
To achieve the above object, the utility model provides following technical solution:
A kind of magnesium alloy ducted propeller, including the jacket connecting with hull tail portion, the jacket lower part connection is led
Pipe, the catheter interior are equipped with propeller hub, and three blades are along the circumferential direction uniformly fixed on the propeller hub, the catheter surface
The wavelike structure being made of concavo-convex protrusion, the blade are made of magnesium alloy materials.
Preferably, the jacket is made of stainless steel.
By using above-mentioned technical proposal, the blade of the utility model uses magnesium alloy materials, and weight substantially reduces, and reduces
Ship resistance, conduit up-front concaveconvex structure can make the influent stream of ducted propeller more close to catheter surface, in conduit
Fluid is not susceptible to fluid separation, improves the influent stream situation in conduit；Meanwhile the protrusion of conduit rear can improve flowing out for conduit
Trailing vortex reduces the energy loss for leading tube fluid, increases the speed for going out stream in conduit, and then improves the propulsion effect of ducted propeller
Rate.
Detailed description of the invention
Fig. 1 is the rearview of the utility model；
Fig. 2 is the side view of the utility model；
Appended drawing reference in figure: 1, jacket；2, conduit；3, blade；4, propeller hub.
Specific embodiment
It is right with reference to the accompanying drawings and examples in order to make those skilled in the art that the utility model may be better understood
Technical solutions of the utility model further illustrate.
- 2 pairs of the utility model embodiments are described further referring to Fig.1.
A kind of magnesium alloy ducted propeller, including the jacket 1 being connect with hull tail portion, 1 lower part of the jacket connection
Conduit 2 is equipped with propeller hub 4 inside the conduit 2, and three blades 3 are along the circumferential direction uniformly fixed on the propeller hub 4, described
The wavelike structure that 2 surface of conduit is made of concavo-convex protrusion, the blade 3 are made of magnesium alloy materials.
Further, the jacket 1 is made of stainless steel.
The blade of the utility model uses magnesium alloy materials, and weight substantially reduces, and reduces ship resistance, conduit leading edge is
Catheter surface can be made to generate induction whirlpool for concaveconvex structure, fluid into conduit injects power, so that influent stream is more close to leading
Pipe surface improves the influent stream of catheter propeller to mitigate the up-front flow separation of conduit；Conduit rear is concaveconvex structure, Neng Gougai
Vortex at kind conduit outflow port, reduces the energy loss for leading in-pipe flow, improves the propulsive efficiency of catheter propeller.
Preferred embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, several deformations can also be made, improves and substitutes, this
Belong to the protection scope of the utility model.Therefore, the protection scope of the utility model patent should be with appended claims
It is quasi-.
Claims (2)
1. a kind of magnesium alloy ducted propeller, which is characterized in that including the jacket (1) being connect with hull tail portion, the conduit
Frame (1) lower connection conduit (2), the conduit (2) is internal to be equipped with propeller hub (4), and three blades (3) are along the circumferential direction uniformly solid
Be scheduled on the propeller hub (4), the wavelike structure that conduit (2) surface is made of concavo-convex protrusion, the blade (3) by
Magnesium alloy materials are made.
2. a kind of magnesium alloy ducted propeller according to claim 1, which is characterized in that the jacket (1) is not using
Rust Steel material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000810.3U CN209274867U (en) | 2018-11-30 | 2018-11-30 | A kind of magnesium alloy ducted propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000810.3U CN209274867U (en) | 2018-11-30 | 2018-11-30 | A kind of magnesium alloy ducted propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209274867U true CN209274867U (en) | 2019-08-20 |
Family
ID=67609437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822000810.3U Active CN209274867U (en) | 2018-11-30 | 2018-11-30 | A kind of magnesium alloy ducted propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209274867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180020A (en) * | 2021-12-22 | 2022-03-15 | 欧振玉 | Marine ducted propeller |
-
2018
- 2018-11-30 CN CN201822000810.3U patent/CN209274867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180020A (en) * | 2021-12-22 | 2022-03-15 | 欧振玉 | Marine ducted propeller |
| CN114180020B (en) * | 2021-12-22 | 2023-02-03 | 欧振玉 | Marine ducted propeller |
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