CN204642125U - A kind of novel propelling unit - Google Patents
A kind of novel propelling unit Download PDFInfo
- Publication number
- CN204642125U CN204642125U CN201520208127.2U CN201520208127U CN204642125U CN 204642125 U CN204642125 U CN 204642125U CN 201520208127 U CN201520208127 U CN 201520208127U CN 204642125 U CN204642125 U CN 204642125U
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- CN
- China
- Prior art keywords
- oar
- blade
- sub
- female
- pressurizing duct
- 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.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to ship machinery technical field, particularly relates to a kind of novel propelling unit.It comprises pressurizing duct and screw propeller, described screw propeller comprises female oar and sub-oar, described female oar and sub-oar are connected on transmission shaft, described pressurizing duct is arranged on the periphery of female oar, and the both ends open caliber size of pressurizing duct is different, the outer wall of described pressurizing duct is provided with the pre-blade of Flow Field outside, the pre-blade of described Flow Field outside is fixed on pressurizing duct outer wall, and described pressurizing duct outer wall is also provided with conduit installing mechanism.The utility model is rational in infrastructure, thrust and structural strength excellent performance, is easy to, to shipbuilding business enterprise expand, to have wide commercial promise.
Description
Technical field
The invention belongs to ship machinery technical field, particularly relate to a kind of novel propelling unit.
Background technology
Screw propeller be depend on blade rotate turn of engine power conversion be in atmosphere propulsive force device or have two or more leaf to be connected with hub, the one side backward of leaf is helical surface or a kind of ship propeller being similar to helical surface, and shrouded propeller refers to add mozzle around screw propeller, namely a kind of propelling unit of a sleeve conduit on the peripheral equipment of screw propeller, the vertical section of conduit is airfoil type, and be installed on and below ship stern, form a unified streamlined body with hull, even current boats and ships industry is substantially all at the shrouded propeller that in-use performance satisfies the demands, but along with the development of shipbuilding industry, the maximization of modern ships, high speed, more and more higher to the performance requriements of propeller for vessels, and also there is a lot of shortcoming in shrouded propeller.
The screw propeller that current capsize vessel uses, the four leaf shrouded propellers that many employings are common, though this type of screw propeller can increase catheter interior flow velocity, on tube wall mineralization pressure difference thus produce additional thrust, but conduit is outer and easily produce complicated wake between hull afterbody, and produce disturb with the wake flow after screw propeller, affect the propulsion coefficient of screw propeller and the maneuvering performance of boats and ships, this screw propeller is after being applied to capsize vessel, obviously can not reduce fuel consumption rate, also the easy navigation attitude on boats and ships creates negative impact, particularly some capsize vessel type newly developed, such as 49000 tons of bulge carriers etc.
Summary of the invention
The object of this invention is to provide a kind of novel propelling unit, which reduce the noise of screw propeller entirety, improve the unstable phenomenon of Attitude because stern propeller flow field causes, and structural strength also reaches very high level, overcomes defect of the prior art and deficiency.
The technical solution adopted in the present invention is:
A kind of novel propelling unit, comprise pressurizing duct and screw propeller, described screw propeller comprises female oar and sub-oar, described female oar and sub-oar are connected on transmission shaft, described pressurizing duct is arranged on the periphery of female oar, and the both ends open caliber size of pressurizing duct is different, the outer wall of described pressurizing duct is provided with the pre-blade of Flow Field outside, the pre-blade of described Flow Field outside is fixed on pressurizing duct outer wall, and described pressurizing duct outer wall is also provided with conduit installing mechanism.
Preferably, described pressurizing duct tail end bore is less than front end bore.
Preferably, described female oar comprises female oar propeller hub and female oar blade, described female oar propeller hub and female oar blade one-body molded, described female oar is sleeved on transmission shaft by female oar propeller hub, and the blade quantity of described female oar blade is 5, and the described female oar oar tip adopts mild design.
Preferably, described sub-oar comprises sub-oar propeller hub and sub-oar blade, described sub-oar propeller hub and sub-oar blade one-body molded, described sub-oar is sleeved on transmission shaft by sub-oar propeller hub, the blade quantity of described sub-oar blade is 4, and described sub-oar adopts four leaves common MAU collection of illustrative plates oar to design.
Preferably, described sub-oar is arranged on the end of transmission shaft and is positioned at the outside of pressurizing duct.
Preferably, the quantity of the pre-blade of described Flow Field outside is at least 7, and is uniformly welded on the outer wall of pressurizing duct, overallly forms impeller shape.
Preferably, described conduit installing mechanism is a pair conduit erecting frame, and described conduit erecting frame symmetry is fixed on the outer wall of pressurizing duct, and and leaves gap between the pre-blade of Flow Field outside.
Preferably, the fixed form between described conduit erecting frame and pressurizing duct is for being welded and fixed.
Preferably, described female oar and described sub-oar material are metallic element proportioning and combine, and the proportioning of described metallic element is copper 78 ~ 82%, nickel 3 ~ 6%, iron 2 ~ 6%, aluminium 7 ~ 11%, tin 0.1%, platinum 0.03%, zinc 1%, manganese 0.5 ~ 4%.
Preferably, the pre-blade of described Flow Field outside and pressurizing duct outer wall axial direction surface thereof 16-20 degree.
The present invention compared with prior art tool has the following advantages and good effect:
The present invention adopts two oar design before and after the primary and secondary of advanced different numbers of pages, optimize propeller blade number, four leaf oars are enable fully to absorb the wake flow of the female oar generation of five leaves, reclaimed the wandering Flow Field outside produced because of bore difference before and after conduit by sub-oar, two oar absorbs vibration each other mutually, reduces the noise of screw propeller entirety, and by the female oar incoming flow of the abundant speedup of sub-oar, promote propulsion coefficient, the speedup incoming flow between primary and secondary two oar, also effectively can reduce the generation of cavity; The present invention adopts and is provided with the pressurizing duct of the pre-blade of Flow Field outside, for sub-oar provides stable moment of torsion output environment, and improves the phenomenon of the Attitude shakiness caused because of stern propeller flow field; Female oar of the present invention and sub-oar, by adopting specific metal materials ratio, make the level that structural strength reaches very high; Manufacturing process science of the present invention, thrust and structural strength excellent performance, be easy to, to shipbuilding business enterprise expand, to have wide commercial promise.
Accompanying drawing explanation
Fig. 1 is female oar direction of the present invention perspective view;
Fig. 2 is sub-oar direction of the present invention perspective view;
Fig. 3 is the front elevation of novel propelling unit of the present invention;
Fig. 4 is the back view of novel propelling unit of the present invention.
Wherein, 1 is conduit erecting frame, and 2 is transmission shaft, and 3 is pressurizing duct, and 4 is the pre-blade of Flow Field outside, and 5 is female oar, and 6 is sub-oar, and 7 is female oar propeller hub, and 8 is female oar blade, and 9 is sub-oar propeller hub, and 10 is sub-oar blade.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail:
As illustrated in fig. 1 and 2, a kind of novel propelling unit, comprise pressurizing duct 3 and screw propeller, described screw propeller comprises female oar 5 and sub-oar 6, described female oar 5 and sub-oar 6 are connected on transmission shaft 2, described pressurizing duct 3 is arranged on the periphery of female oar 5, and the both ends open caliber size of pressurizing duct 3 is different, described pressurizing duct 3 tail end bore is less than front end bore, described sub-oar 6 is arranged on the end of transmission shaft 2 and is positioned at the outside of pressurizing duct 3, the outer wall of described pressurizing duct 3 is provided with the pre-blade 4 of Flow Field outside, the pre-blade 4 of described Flow Field outside is fixed on pressurizing duct 3 outer wall, the quantity of the pre-blade 4 of described Flow Field outside is at least 7, and on the uniform outer wall being welded on pressurizing duct 3, overall formation impeller shape, described pressurizing duct 3 outer wall is also provided with conduit installing mechanism, described conduit installing mechanism is a pair conduit erecting frame 1, described conduit erecting frame 1 symmetry is fixed on the outer wall of pressurizing duct 3, and and leave gap between the pre-blade 4 of Flow Field outside, adopt between described conduit erecting frame 1 and pressurizing duct 3 and be welded and fixed,
The pre-blade 4 of described Flow Field outside and pressurizing duct 3 outer wall axial direction surface thereof 18 degree.
As shown in Figure 3, described female oar 5 comprises female oar propeller hub 7 and female oar blade 8, and described female oar propeller hub 7 is one-body molded with female oar blade 8, and described female oar 5 is sleeved on transmission shaft 2 by female oar propeller hub 7, the blade quantity of described female oar blade 8 is 5, and described female oar oar tip adopts mild design.
As shown in Figure 4, described sub-oar 6 comprises sub-oar propeller hub 9 and sub-oar blade 10, described sub-oar propeller hub 9 is one-body molded with sub-oar blade 10, described sub-oar 6 is sleeved on transmission shaft 2 by sub-oar propeller hub 9, the blade quantity of described sub-oar blade 10 is 4, and described sub-oar 6 adopts four leaves common MAU collection of illustrative plates oar to design.
Described female oar 5 forms one with sub-oar 6 by a die casting, described female oar 5 and described sub-oar 6 material are metallic element proportioning and combine, and the metallic element proportioning of described female oar and sub-oar material is copper 78 ~ 82%, nickel 3 ~ 6%, iron 2 ~ 6%, aluminium 7 ~ 11%, tin 0.1%, platinum 0.03%, zinc 1%, manganese 0.5 ~ 4%.
The female oar of the present invention adopts five leaf shrouded propellers can make full use of the constraint of pressurizing duct to incoming flow, and then concentrated thrust acts on backward, leaf sends part to adopt mild design can reduce the impact of blade tip leakage flow on propulsion coefficient, sub-oar adopts four leaves common MAU collection of illustrative plates oar to design, and can reclaim the wandering Flow Field outside and blade tip leakage flow that produce because of bore difference before and after pressurizing duct; The present invention is by adopting two oar design before and after the primary and secondary of advanced different numbers of pages, optimize propeller blade number, four leaf oars are enable fully to absorb the wake flow of the female oar generation of five leaves, reclaimed the wandering Flow Field outside produced because of bore difference before and after pressurizing duct by sub-oar, two oar absorbs vibration each other mutually, reduces the noise of screw propeller entirety, and by the female oar incoming flow of the abundant speedup of sub-oar, promote propulsion coefficient, the speedup incoming flow between primary and secondary two oar, also effectively can reduce the generation of cavity; The present invention is provided with the pressurizing duct of the pre-blade of Flow Field outside, for sub-screw propeller provides stable moment of torsion output environment, improves the unstable phenomenon of Attitude because stern propeller flow field causes; Female oar and sub-oar adopt specific metal materials ratio, and structural strength reaches very high level.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (8)
1. a novel propelling unit, comprise pressurizing duct and screw propeller, it is characterized in that: described screw propeller comprises female oar and sub-oar, described female oar and sub-oar are connected on transmission shaft, described pressurizing duct is arranged on the periphery of female oar, and the both ends open caliber size of pressurizing duct is different, the outer wall of described pressurizing duct is provided with the pre-blade of Flow Field outside, the pre-blade of described Flow Field outside is fixed on pressurizing duct outer wall, and described pressurizing duct outer wall is also provided with conduit installing mechanism.
2. according to the novel propelling unit shown in claim 1, it is characterized in that: described pressurizing duct tail end bore is less than front end bore.
3. novel propelling unit according to claim 1, it is characterized in that: described female oar comprises female oar propeller hub and female oar blade, described female oar propeller hub and female oar blade one-body molded, described female oar is sleeved on transmission shaft by female oar propeller hub, and the blade quantity of described female oar blade is 5.
4. novel propelling unit according to claim 1, it is characterized in that: described sub-oar comprises sub-oar propeller hub and sub-oar blade, described sub-oar propeller hub and sub-oar blade one-body molded, described sub-oar is sleeved on transmission shaft by sub-oar propeller hub, the blade quantity of described sub-oar blade is 4, and described sub-oar adopts four leaves common MAU collection of illustrative plates oar to design.
5. the novel propelling unit according to claim 1-4 any one, is characterized in that: described sub-oar is arranged on the end of transmission shaft and is positioned at the outside of pressurizing duct.
6. novel propelling unit according to claim 1, is characterized in that: the quantity of the pre-blade of described Flow Field outside is at least 7, and is uniformly welded on the outer wall of pressurizing duct, overallly forms impeller shape.
7. novel propelling unit according to claim 1, is characterized in that: described conduit installing mechanism is a pair conduit erecting frame, and described conduit erecting frame symmetry is fixed on the outer wall of pressurizing duct, and and leaves gap between the pre-blade of Flow Field outside.
8. novel propelling unit according to claim 7, is characterized in that: the fixed form between described conduit erecting frame and pressurizing duct is for being welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520208127.2U CN204642125U (en) | 2015-04-08 | 2015-04-08 | A kind of novel propelling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520208127.2U CN204642125U (en) | 2015-04-08 | 2015-04-08 | A kind of novel propelling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204642125U true CN204642125U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520208127.2U Expired - Fee Related CN204642125U (en) | 2015-04-08 | 2015-04-08 | A kind of novel propelling unit |
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| Country | Link |
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| CN (1) | CN204642125U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787284A (en) * | 2015-04-08 | 2015-07-22 | 浙江海洋学院 | Child-mother coaxial guide pipe wheel propeller |
| CN107867382A (en) * | 2017-10-16 | 2018-04-03 | 重庆交通大学 | A kind of propeller set |
| CN110979613A (en) * | 2019-12-26 | 2020-04-10 | 中国海洋大学 | Duck-type hydrodynamic layout tandem propeller and design method thereof |
-
2015
- 2015-04-08 CN CN201520208127.2U patent/CN204642125U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787284A (en) * | 2015-04-08 | 2015-07-22 | 浙江海洋学院 | Child-mother coaxial guide pipe wheel propeller |
| CN107867382A (en) * | 2017-10-16 | 2018-04-03 | 重庆交通大学 | A kind of propeller set |
| CN110979613A (en) * | 2019-12-26 | 2020-04-10 | 中国海洋大学 | Duck-type hydrodynamic layout tandem propeller and design method thereof |
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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: 20150916 Termination date: 20160408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |