CN206466146U - A kind of pull-type constant pitch airscrew of gondola - Google Patents
A kind of pull-type constant pitch airscrew of gondola Download PDFInfo
- Publication number
- CN206466146U CN206466146U CN201621061817.0U CN201621061817U CN206466146U CN 206466146 U CN206466146 U CN 206466146U CN 201621061817 U CN201621061817 U CN 201621061817U CN 206466146 U CN206466146 U CN 206466146U
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- China
- Prior art keywords
- blade
- propeller
- pull
- constant pitch
- gondola
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- 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.)
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Abstract
The pull-type constant pitch airscrew of a kind of gondola that the utility model is provided, has the feature that, including：Propeller hub, cylindrical, an end face is towards stem, and another end face is towards ship stern；And several blades, it is evenly distributed on the same circumference of propeller hub, the connection of one end propeller hub, wherein, blade uses pulling structure, has：Blade root, is connected with propeller hub；And blade tip.
Description
Technical field
The utility model is related to one kind and sets propeller, more particularly to a kind of pull-type constant pitch airscrew of gondola.
Background technology
The blade majority of traditional propeller uses the structure of pushing-type, and trim is all to fix an angle to ship stern direction
Degree is tilted, and seldom considers influence of the attached body of propeller to blade in itself；Conventional traditional propeller uses pushing-type structure, oar
With the presence of ship or the attached body of propeller in front of leaf, the wake skewness of propeller disk is caused, the operation of propeller is in
Different wake regions, makes the different vibrations so as to cause blade itself of the current angle of attack of every blade, makes the propulsion of propeller
Efficiency is reduced, and reduces the compression strength of propeller blade；Meanwhile, blade rear is but without the attached body of any propeller, blade
Current be vortexed and can steadily slow down until disappearing, while in working condition, because blade tip can produce the reason in tip whirlpool, after
Formula of inclining pattern, can reduce the exciting force that tip whirlpool induces hull, it is to avoid the potential safety hazard come due to shuttle belt；The propeller of gondola is such as
Fruit still uses pushing-type structure, it is necessary to consider the influence of the vibration of blade itself to the efficiency and compression strength of propeller；Together
When, it is full circle swinging gondola configuration propeller, it is necessary to consider that the attached body of propeller influences each other to blade, nacelle makes the tail of propeller
Whirlpool acts on nacelle surface, so that pod body exciting can be induced, the reaction of trailing vortex is also so as to influence propeller service life.
Utility model content
The utility model is carried out to solve the above problems, it is therefore intended that raising propulsion can be lifted by providing one kind
Efficiency, increases anti-pressure ability, reduces blade and induces exciting, the pull-type spacing spiral shell of a kind of gondola increased the service life to gondola housing
Revolve oar.
The pull-type constant pitch airscrew of a kind of gondola that the utility model is provided, has the feature that, including：Propeller hub, in circle
Tubular, an end face is towards stem, and another end face is towards ship stern；And several blades, it is evenly distributed on the same of propeller hub
On circumference, the connection of one end propeller hub, wherein, blade uses pulling structure, has：Blade root, is connected with propeller hub；And blade tip.
The pull-type constant pitch airscrew of a kind of gondola that the utility model is provided, also has the feature that：Wherein, propeller hub is in circle
Mesa-shaped, the big end face of diameter is towards ship stern, and the small end face of diameter is towards stem.
The pull-type constant pitch airscrew of a kind of gondola that the utility model is provided, also has the feature that：Wherein, blade is fixed
Pitch.
The pull-type constant pitch airscrew of a kind of gondola that the utility model is provided, also has the feature that：Wherein, blade is carried out
Rake is distributed.
The pull-type constant pitch airscrew of a kind of gondola that the utility model is provided, also has the feature that：Wherein, rake is distributed
First gradually tilted again to ship stern direction to the bending of stem direction from blade root to the radial distribution of blade tip.
Utility model is acted on and effect
The attached body of propeller is not present in front of a kind of pull-type constant pitch airscrew of gondola according to involved by the utility model, blade,
The wake distribution of propeller disk is substantially uniform, and the operation of propeller is in relatively uniform wake region, makes every blade
The current angle of attack is essentially identical, so as to effectively avoid the vibration of blade itself from producing, so as to improve the propulsion effect of propeller
Rate, and increase the compression strength of propeller；Using the distribution for becoming trim, the radial distribution of blade root to blade tip is first to stem side
Gradually tilted again to ship stern direction to bending, can so ensure the distance of blade tip and the attached body of propeller, efficiently control tip whirlpool
Induce the exciting force of the attached body of propeller；Reduce induction of the propeller to pod body, be equally exactly the reaction for reducing trailing vortex, energy
The enough service life for effectively extending propeller.
Brief description of the drawings
Fig. 1 is a kind of structural representation of gondola pull-type constant pitch airscrew of the utility model in embodiment.
Embodiment
Referring to the drawings and embodiment makees detailed to a kind of pull-type constant pitch airscrew of gondola involved by the utility model
Description.
Fig. 1 is a kind of structural representation of gondola pull-type constant pitch airscrew of the utility model in embodiment.
As shown in figure 1, a kind of pull-type constant pitch airscrew of gondola has：Propeller hub 1 and 2.
Propeller hub 1 is cylindrical, two end face diameters it is different similar one it is round table-like, the big end face of diameter is towards the ship
Stern, the small end face of diameter is towards the stem.
Several blades 2 use pulling structure, have：Blade root 2-1 and blade tip 2-2.Several blades 2 are evenly distributed on institute
State on the same circumference of propeller hub 1.
Blade root 2-1 propeller hubs 1 are connected, and blade tip 2-2 is located at the other end of blade 2.
Blade 2 is constant pitch, it is considered to the influence of structure for pod, rational to carry out rake distribution.
The attached body of propeller is not present in the front of blade 2, and the wake distribution of propeller disk is substantially uniform, at the operation of propeller
In relatively uniform wake region, make the current angle of attack of every blade 2 essentially identical, blade 2 is avoided certainly so as to effective
The vibration of body is produced, so as to improve the propulsive efficiency of propeller, and increases the compression strength of propeller.
Radial distribution of the rake of blade 2 from blade root 2-1 to blade tip 2-2 is first bent again gradually to ship stern side to stem direction
To inclination.
Blade tip 2-2 and the attached body of propeller distance can so be ensured, tip whirlpool is efficiently controlled and induce the attached body of propeller
Exciting force；Reduce induction of the propeller to pod body, be equally exactly the reaction for reducing trailing vortex, can effectively extend spiral
The service life of oar.
The effect of embodiment and effect
The attached body of propeller, spiral shell are not present in front of a kind of pull-type constant pitch airscrew of gondola according to involved by the present embodiment, blade
The wake distribution for revolving oar card is substantially uniform, and the operation of propeller is in relatively uniform wake region, makes the water of every blade
Flow the angle of attack essentially identical, so as to effectively avoid the vibration of blade itself from producing, so that the propulsive efficiency of propeller is improved,
And increase the compression strength of propeller；Using the distribution for becoming trim, the radial distribution of blade root to blade tip is first to stem direction
Bending is gradually tilted to ship stern direction again, can so be ensured the distance of blade tip and the attached body of propeller, be efficiently controlled tip whirlpool and lure
Send out the exciting force of the attached body of propeller；Reduce induction of the propeller to pod body, be equally exactly the reaction for reducing trailing vortex, can
Effectively extend the service life of propeller.
Above-mentioned embodiment is preferred case of the present utility model, is not intended to limit protection domain of the present utility model.
Claims (5)
1. a kind of pull-type constant pitch airscrew of gondola, it is characterised in that including：
Propeller hub, cylindrical, an end face is towards stem, and another end face is towards ship stern；And
Several blades, are evenly distributed on the same circumference of the propeller hub, and propeller hub described in one end is connected,
Wherein, the blade uses pulling structure, has：
Blade root, is connected with the propeller hub；And
Blade tip.
2. the pull-type constant pitch airscrew of a kind of gondola according to claim 1, it is characterised in that：
Wherein, the propeller hub is in round table-like, and the big end face of diameter is towards the ship stern, and the small end face of diameter is towards the stem.
3. the pull-type constant pitch airscrew of a kind of gondola according to claim 1, it is characterised in that：
Wherein, the blade is constant pitch.
4. the pull-type constant pitch airscrew of a kind of gondola according to claim 1, it is characterised in that：
Wherein, the blade carries out rake distribution.
5. the pull-type constant pitch airscrew of a kind of gondola according to claim 4, it is characterised in that：
Wherein, radial distribution of the rake distribution from the blade root to the blade tip is first bent again gradually to the stem direction
Tilted to the ship stern direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061817.0U CN206466146U (en) | 2016-09-19 | 2016-09-19 | A kind of pull-type constant pitch airscrew of gondola |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061817.0U CN206466146U (en) | 2016-09-19 | 2016-09-19 | A kind of pull-type constant pitch airscrew of gondola |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206466146U true CN206466146U (en) | 2017-09-05 |
Family
ID=59709220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621061817.0U Expired - Fee Related CN206466146U (en) | 2016-09-19 | 2016-09-19 | A kind of pull-type constant pitch airscrew of gondola |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206466146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352008A (en) * | 2016-09-19 | 2017-11-17 | 北车船舶与海洋工程发展有限公司 | A kind of pull-type constant pitch airscrew of new gondola |
-
2016
- 2016-09-19 CN CN201621061817.0U patent/CN206466146U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352008A (en) * | 2016-09-19 | 2017-11-17 | 北车船舶与海洋工程发展有限公司 | A kind of pull-type constant pitch airscrew of new gondola |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 |