CN109229321A - A kind of propulsion system guard method and propeller - Google Patents
A kind of propulsion system guard method and propeller Download PDFInfo
- Publication number
- CN109229321A CN109229321A CN201811131533.8A CN201811131533A CN109229321A CN 109229321 A CN109229321 A CN 109229321A CN 201811131533 A CN201811131533 A CN 201811131533A CN 109229321 A CN109229321 A CN 109229321A
- Authority
- CN
- China
- Prior art keywords
- propeller
- groove
- blade
- filling member
- propulsion system
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/26—Blades
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The present invention discloses a kind of propulsion system guard method and propeller, wherein propulsion system guard method are as follows: provides propeller and shafting, opens up groove in the root of the blade of propeller, filling member is filled in groove, then propeller is mounted in shafting.Groove is opened up by the root of the blade in propeller; the intensity of propeller shank can be reduced; during propeller rotation; if the power that is hampered is larger; can blade be first broken; and then prevent high-drag from passing to shafting or bracing strut to the destructive power of propeller, effectively shaft and bracing strut are protected, and are reduced the replacement of propulsion system and are repaired difficulty；By filling filling member in groove, the intensity of the root of some blades can be covered, while blade surface can also be smoothed, so that the resistance of blade surface does not change.
Description
Technical field
The present invention relates to technical field of ships more particularly to a kind of propulsion system guard method and propellers.
Background technique
The propulsion system of ship generally comprises host, the shafting of host, bracing strut and propeller, the spiral of usual ship
Paddle uses corronil casting, and intensity generally requires the requirement for meeting and being able to bear respective loads, due to the blade of propeller
Requirement of the hydrodynamic force to blade form so that the intensity of the root of blade is far beyond requiring.When general ship's navigation, spiral
The blade of paddle will receive load destruction, and under this load, blade will not be broken, but local deformation, such that and spiral
The other component of the connected propulsion system of paddle is destroyed, such as the shafting and bracing strut of host, after this base part is damaged,
It is replaced and repairs difficulty and is far longer than the replacement of propeller and repairs difficulty, simultaneously because blade deforms, propeller is still needed
It repairs.
Summary of the invention
It is easy to operate it is an object of the present invention to provide a kind of propulsion system guard method, axis can be effectively prevent
System and bracing strut are not damaged.
It is another object of the present invention to provide a kind of propellers, and structure is simple, can carry out to entire propulsion system
It is effectively protected.
To achieve this purpose, the present invention adopts the following technical scheme:
In a first aspect, providing a kind of propulsion system guard method, propeller and shafting are provided, in the blade of the propeller
Root open up groove, fill filling member in the groove, then the propeller be mounted in the shafting.
As a kind of preferred embodiment of propulsion system guard method, the filling member is corronil casting or zine plate.
As a kind of preferred embodiment of propulsion system guard method, the filling member is fixed by screws in the groove
It is interior.
As a kind of preferred embodiment of propulsion system guard method, first distinguish before filling the filling member in the groove
Threaded hole is opened up on the slot bottom and the filling member of the groove, the filling member is then fixed on by institute by the screw
It states in groove.
As a kind of preferred embodiment of propulsion system guard method, the filling member is fixed on described by the way of spot welding
In groove.
As a kind of preferred embodiment of propulsion system guard method, to described after the filling member is filled to the groove
Gap filling marine glue between filling member and the groove.
Second aspect provides a kind of propeller, including propeller hub and blade, in the blade adjacent to the position of the propeller hub
Groove is opened up, fills filling member in the groove.
As a kind of preferred embodiment of propeller, the length of the groove extends along the width direction of the blade, and edge
The width direction of the blade is not through the blade.
As a kind of preferred embodiment of propeller, the depth of the groove is less than the thickness for opening up the blade of position
Half.
As a kind of preferred embodiment of propeller, the distance of the propeller hub of propeller described in the groove distance is not more than 0.05
The radius of~0.1 times of blade.
Having the beneficial effect that for the embodiment of the present invention opens up groove by the root of the blade in propeller, can reduce paddle
The intensity of blade root, if the power that is hampered is larger, can make blade first be broken, and then prevent height during propeller rotation
Resistance passes to shafting or bracing strut to the destructive power of propeller, and effectively shaft and bracing strut are protected, and reduces
The replacement and reparation difficulty of propulsion system；By filling filling member in groove, the intensity of the root of some blades can be covered,
Blade surface can also be smoothed simultaneously, so that the resistance of blade surface does not change.
Detailed description of the invention
The present invention will be further described in detail below based on the drawings and embodiments.
Fig. 1 is the structural schematic diagram of the propeller of the embodiment of the present invention.
Fig. 2 is the schematic front view of the propeller of the embodiment of the present invention.
In figure:
1, propeller hub；2, blade；3, filling member.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
As illustrated in fig. 1 and 2, the embodiment of the present invention provides a kind of propulsion system guard method, provides propeller and shafting,
The root of the blade 2 of the propeller opens up groove, fills filling member 3 in the groove, then installs the propeller
In the shafting.Groove is opened up by the root of the blade 2 in propeller, the intensity of 2 root of blade can be reduced, in spiral
During paddle rotates, if the power that is hampered is larger, blade 2 can be made first to be broken, and then prevent destruction of the high-drag to propeller
Power passes to shafting or bracing strut, and effectively shaft and bracing strut are protected, and reduces the replacement of propulsion system and repairs
Multiple difficulty；By filling filling member 3 in groove, the intensity of the root of some blades 2 can be covered, while paddle can also be smoothed
2 surface of leaf, so that the resistance on 2 surface of blade does not change.
Wherein, the root of blade 2 is blade 2 adjacent to the position of propeller hub 1.
Optionally, the filling member 3 is corronil casting or zine plate.Corronil casting its with the corrosion-resistant of superelevation
Effect can be effectively prevented filling member 3 and be corroded, while the intensity of corronil casting is higher, sea water resistance or other objects
Body collides, long service life；And the characteristic that zine plate can use this material realizes the corrosion resistant effect of sacrificial anode.
In a preferred embodiment of the invention, the filling member 3 is fixed by screws in the groove.Screw
Fixed mode may be implemented being detachably connected for filling member 3, and then be convenient for the replacement of filling member 3, at the same screw connection unlike
Welding (welding mode entirely) can greatly enhance the intensity of this position, therefore will not influence later period propeller to entire propulsion system
Protection.
Optionally, it fills in the groove before the filling member 3 first respectively in the slot bottom of the groove and the filling
Threaded hole is opened up on part 3, it is then by the screw that the filling member 3 is fixed in the groove.Due to the material of blade 2
For corronil casting, intensity is high, therefore the mode for the fixed filling member 3 that directly screws is relatively difficult, therefore selection is being filled out
Threaded hole is first processed before filling, the assembling difficulty of filling member 3 can be greatly reduced, while can also be effectively prevented because of operation
The case where making mistakes and damaging blade 2 generation.
In other embodiments, the filling member 3 is fixed in the groove by the way of spot welding.The mode of spot welding
The intensity of 2 root of blade will not rapidly be increased, effectively the shafting of propulsion system or bracing strut can be protected.
In another preferred embodiment of the invention, filled out after the filling member 3 filling to the groove to described
Fill the gap filling marine glue between part 3 and the groove.The gap between groove and filling member 3 can be sealed in marine glue,
Prevent seawater or impurity from entering in groove.
In order to reduce the resistance on 2 surface of blade, filling member 3 is processed as and 2 arcing surface of blade far from the one side of groove
Spend consistent cambered surface or curved surface.Such structure can make the surface of filling member 3 and the flush of blade 2, can be maximum
The resistance on reduction 2 surface of blade in limit.
As illustrated in fig. 1 and 2, the embodiment of the present invention also provides a kind of propeller, including propeller hub 1 and blade 2, in the blade
2 is fluted adjacent to the setting of the position of the propeller hub 1, fills filling member 3 in the groove.This propeller is applied to above-mentioned
In the propulsion system guard method of one embodiment, effectively make the strength reduction of 2 root of blade, when blade 2 meets larger resistance,
Blade 2 is by fracture of root, and after blade 2 is broken, the resistance moment on propeller becomes smaller, therefore will not pass to bigger resistance
Shafting and bracing strut, shaft and bracing strut effectively protect, in replacement, it is only necessary to which replacement operation difficulty is low and cost
Low propeller, dramatically saves maintenance cost.
In a preferred embodiment of the invention, the length of the groove extends along the width direction of the blade 2,
And along the width direction of the blade 2 not through the blade 2.The thick middle both ends that blade 2 is typically designed to width direction are thin
Structure, therefore design groove structure when, groove cannot run through blade 2 width direction, and this design can reduce plus
Work process
In another preferred embodiment of the invention, the depth of the groove is less than the blade 2 for opening up position
Thickness half.Optionally, equal to 0.45 times, the thickness of blade 2, such design can not only make the depth of groove herein
Blade 2 is slightly larger than the intensity in course of normal operation required for keeping, can also quickly respond when encountering larger resistance
And it is broken, and then be reduced as far as the influence of shaft and bracing strut.
Optionally, the distance of the propeller hub of propeller described in the groove distance is not more than 0.05~0.1 times of blade 2
Radius.Such design can make that post-rift propeller passes to shafting or the resistance of bracing strut is smaller, i.e., destroying infection can
To be preferably minimized.
In the description of this specification, the description of reference term " embodiment " etc. means the specific spy in conjunction with the embodiment
Sign, structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned
The schematic representation of term is not necessarily referring to identical embodiment.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification be only be to understand device, those skilled in the art should
It considers the specification as a whole, the technical solutions in the embodiments can also be appropriately combined, and forming those skilled in the art can
With the other embodiments of understanding.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of propulsion system guard method, which is characterized in that propeller and shafting are provided, in the root of the blade of the propeller
Portion opens up groove, fills filling member in the groove, and then the propeller is mounted in the shafting.
2. propulsion system guard method according to claim 1, which is characterized in that the filling member is corronil casting
Or zine plate.
3. propulsion system guard method according to claim 1, which is characterized in that the filling member is fixed by screws in
In the groove.
4. propulsion system guard method according to claim 3, which is characterized in that fill the filling in the groove
Threaded hole first is opened up on the slot bottom of the groove and the filling member respectively before part, then by the screw by the filling
Part is fixed in the groove.
5. propulsion system guard method according to claim 1, which is characterized in that the filling member is by the way of spot welding
It is fixed in the groove.
6. propulsion system guard method according to any one of claims 1 to 5, which is characterized in that filled out in the filling member
It is charged to after the groove to the gap filling marine glue between the filling member and the groove.
7. a kind of propeller, including propeller hub and blade, which is characterized in that opened up in the blade adjacent to the position of the propeller hub
Groove fills filling member in the groove.
8. propeller according to claim 7, which is characterized in that width direction of the length of the groove along the blade
Extend, and along the width direction of the blade not through the blade.
9. propeller according to claim 7, which is characterized in that the depth of the groove is less than the paddle for opening up position
The half of the thickness of leaf.
10. propeller according to claim 7, which is characterized in that the propeller hub of propeller described in the groove distance away from
From the radius for being not more than 0.05~0.1 times of blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131533.8A CN109229321A (en) | 2018-09-27 | 2018-09-27 | A kind of propulsion system guard method and propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131533.8A CN109229321A (en) | 2018-09-27 | 2018-09-27 | A kind of propulsion system guard method and propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109229321A true CN109229321A (en) | 2019-01-18 |
Family
ID=65057018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811131533.8A Pending CN109229321A (en) | 2018-09-27 | 2018-09-27 | A kind of propulsion system guard method and propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109229321A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1312762A1 (en) * | 2001-11-14 | 2003-05-21 | Snecma Moteurs | Fan blade having a brittle tip |
-
2018
- 2018-09-27 CN CN201811131533.8A patent/CN109229321A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1312762A1 (en) * | 2001-11-14 | 2003-05-21 | Snecma Moteurs | Fan blade having a brittle tip |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
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| RJ01 | Rejection of invention patent application after publication |