CN204979202U - Pipe type double fluid is to screw - Google Patents
Pipe type double fluid is to screw Download PDFInfo
- Publication number
- CN204979202U CN204979202U CN201520542213.7U CN201520542213U CN204979202U CN 204979202 U CN204979202 U CN 204979202U CN 201520542213 U CN201520542213 U CN 201520542213U CN 204979202 U CN204979202 U CN 204979202U
- Authority
- CN
- China
- Prior art keywords
- blade
- conduit
- paddle
- water service
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a pipe type double fluid is to screw, include: thick liquid hub, interior paddle, water service pipe, paddle and pipe, interior paddle is located between thick liquid hub and the water service pipe, interior paddle has the 2 -4 piece, interior paddle evenly distributed is in on the thick liquid hub, the paddle is located between water service pipe and the pipe, the paddle also has the 2 -4 piece, the paddle heels oblique evenly distributed and is in on the water service pipe, the pipe is located outside the paddle, and the inner wall of pipe with the clearance of the thick liquid point of paddle is 1 -3mm. In this way, the utility model discloses a pipe double fluid is to the structure, can effectively improve the propulsive efficiency of screw.
Description
Technical field
The utility model relates to screw propeller field, particularly relates to a kind of conduit type double-flow-direction propeller.
Background technology
Marine propeller promotes the mechanism that boats and ships advance, and screw propeller is installed on stern underwater, obtains power and rotating by marine main engine, after pushing water to ship, utilizes the antagonistic force of water to push boat advance.
Along with the increase of larger-sized vessel and the speed of a ship or plane, the load of screw propeller is larger, existing propeller for vessels due to blade point stream loss, screw propeller after wake flow contraction etc. make its propulsion coefficient not high, therefore existing propeller for vessels can not meet the angle of rake requirement of large ship.
Utility model content
The technical matters that the utility model mainly solves is: for the deficiencies in the prior art, provides a kind of conduit type double-flow-direction propeller, adopts the two flow direction structure of conduit, effectively can improve the propulsion coefficient of screw propeller.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of conduit type double-flow-direction propeller, comprise: slurry hub, interior blade, water service pipe, blade and conduit, described interior blade is between described slurry hub and water service pipe, described interior blade has 2-4 sheet, described interior blade is evenly distributed on described slurry hub, described blade is between water service pipe and conduit, described blade also has 2-4 sheet, described blade rolls and is tiltedly evenly distributed on described water service pipe, described conduit is positioned at outside described blade, and the gap of the slurry point of the inwall of described conduit and described blade is 1-3mm.
In the utility model preferred embodiment, described interior blade is equal with the quantity of blade, all has 4.
In the utility model preferred embodiment, described interior blade is contrary with the hand of spiral of blade.
In the utility model preferred embodiment, the center of circle of described water service pipe and the center of circle of described conduit are on same level straight line.
The beneficial effects of the utility model are: the utility model adopts the two flow direction structure of conduit, effectively can improve the propulsion coefficient of screw propeller.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model conduit type double-flow-direction propeller;
In accompanying drawing, the mark of each parts is as follows: 1, starch hub, 2, interior blade, and 3, water service pipe, 4, blade, 5, conduit.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Refer to Fig. 1, the utility model embodiment comprises:
A kind of conduit type double-flow-direction propeller, comprising: slurry hub 1, interior blade 2, water service pipe 3, blade 4 and conduit 5; Described interior blade 2 has 4, is arranged on described slurry hub 1 equably; Described blade 4 also has 4, is arranged on described water service pipe 3 equably; Described interior paddle 2 is contrary with the hand of spiral of blade 4, when propeller rotational gets up water to pusher, water in water service pipe 3 then flow forward, thus improve the situation of screw propeller at low pressure water flow above, there is eddy current in the region limiting its slurry hub 1, strengthens the wake of propeller, increases the antagonistic force of screw propeller, thus improve its use effect, to improve the speed of a ship or plane of boats and ships;
The center of circle of described water service pipe 3 and the center of circle of described conduit 5 are on same level straight line, and the gap of the inwall of described conduit 5 and the slurry point of described blade 4 is 1-3mm, gap between conduit 5 and screw blade 4 is very little, what limit blade point streams loss, wake flow after conduit 5 can reduce screw propeller simultaneously shrinks, degradation of energy is reduced, thus effectively improves the propulsion coefficient of screw propeller.
The utility model discloses a kind of conduit type double-flow-direction propeller, adopts the two flow direction structure of conduit, inside and outside blade, effectively can improve the propulsion coefficient of screw propeller.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification sheets and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. a conduit type double-flow-direction propeller, it is characterized in that, comprise: slurry hub, interior blade, water service pipe, blade and conduit, described interior blade is between described slurry hub and water service pipe, described interior blade has 2-4 sheet, described interior blade is evenly distributed on described slurry hub, described blade is between water service pipe and conduit, described blade also has 2-4 sheet, described blade rolls and is tiltedly evenly distributed on described water service pipe, described conduit is positioned at outside described blade, and the gap of the slurry point of the inwall of described conduit and described blade is 1-3mm.
2. conduit type double-flow-direction propeller according to claim 1, is characterized in that, described interior blade is equal with the quantity of blade, all has 4.
3. conduit type double-flow-direction propeller according to claim 1, is characterized in that, described interior blade is contrary with the hand of spiral of blade.
4. conduit type double-flow-direction propeller according to claim 1, is characterized in that, the center of circle of described water service pipe and the center of circle of described conduit are on same level straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520542213.7U CN204979202U (en) | 2015-07-24 | 2015-07-24 | Pipe type double fluid is to screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520542213.7U CN204979202U (en) | 2015-07-24 | 2015-07-24 | Pipe type double fluid is to screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204979202U true CN204979202U (en) | 2016-01-20 |
Family
ID=55113596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520542213.7U Expired - Fee Related CN204979202U (en) | 2015-07-24 | 2015-07-24 | Pipe type double fluid is to screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204979202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035293A (en) * | 2015-07-24 | 2015-11-11 | 苏州金业船用机械厂 | Guide-tube type double-flow-direction propeller |
-
2015
- 2015-07-24 CN CN201520542213.7U patent/CN204979202U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035293A (en) * | 2015-07-24 | 2015-11-11 | 苏州金业船用机械厂 | Guide-tube type double-flow-direction propeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20160724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |