CN203528796U - Winding-prevention tandem propeller thruster - Google Patents
Winding-prevention tandem propeller thruster Download PDFInfo
- Publication number
- CN203528796U CN203528796U CN201320546994.8U CN201320546994U CN203528796U CN 203528796 U CN203528796 U CN 203528796U CN 201320546994 U CN201320546994 U CN 201320546994U CN 203528796 U CN203528796 U CN 203528796U
- Authority
- CN
- China
- Prior art keywords
- propeller
- tandem
- pitch cutting
- hubs
- shaft
- 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 - Lifetime
Links
Images
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model relates to a winding-prevention tandem propeller thruster which comprises a tail shaft and propellers. The at least two propellers are installed on the tail shaft in serial in a front-and-back mode, the tail shaft is fixedly arranged on shaft hubs and propeller hubs of the propellers in a penetrated mode, the shaft hubs are fixedly supported at the tail of a boat body through supporting frames, the tail shaft is arranged in the shaft hubs in a rotatable mode and fixedly connected to the interiors of the propeller hubs, a plurality of rotation cutting blades are fixedly connected to the outer circumferential faces of the front ends of the propeller hubs, protective covers are arranged on the outer circumferential faces of the ends, close to the rotation cutting blades, of the shaft hubs, and a plurality of fixed cutting blades are fixedly connected to the peripheries of the protective covers and fixed at one ends, close to the shaft hubs, of the protective covers. Blade tips of blades of the propellers do not exceed a base line of a boar bottom. According to the winding-prevention tandem propeller thruster, floating objects such as aquatic plants in water can be effectively prevented from winding the blades, the working flow field environment of the thruster is improved, the normal operation of the boat is guaranteed, and the propulsive efficiency of the propellers is improved.
Description
Technical field
The utility model relates to propeller plant, is specifically related to prevent the tandem airscrew propeller of pasture and water, fishing net winding screw oar.
Background technology
Propeller is the propelling unit of marine vehicle widespread use, at present, the propeller being applied on boats and ships is single structure setting mostly, a propelling unit only has a screw propeller, boats and ships for the single structure of conventional tail propulsion mode, disadvantage is to influence each other between hull and propelling unit, raising along with ship's speed, the long-pending also increase of amount of water that hull arranges, cause hull to form even vortex separation zone, meiobar at afterbody, the navigability of speed of a ship or plane raising and boats and ships is played to restrictive function.For the problems referred to above, in prior art, there is the innovative approach that adopts tandem airscrew propeller, former and later two or the identical screw propeller of a plurality of rotation direction be housed on same oar axle, with this, improved the water flow field environment of propelling unit work, avoid cavity to occur, improve the navigability of boats and ships.Yet, still also there is other defect in this string paddle structure of the prior art, because present water quality environment is worsening, the floating debris such as pasture and water, blue-green algae grows, in the process of propelling unit work, the floating debriss such as the pasture and water in water, fishing net are easily wrapped on blade, have not only increased ship resistance, and may damage screw propeller, thereby affect angle of rake work efficiency.
Utility model content
The applicant improves for above-mentioned shortcoming of the prior art, a kind of antiwind tandem airscrew propeller is provided, it can effectively avoid in water the floating debriss such as pasture and water to be wound around blade, has improved the water flow field environment of propelling unit work, improves propeller propulsive efficiency.
The technical solution of the utility model is as follows:
Antiwind tandem airscrew propeller, comprise tailing axle and screw propeller, before and after at least two screw propellers, tandem is arranged on tailing axle, tailing axle runs through in the propeller hub that is installed in propeller boss and screw propeller, propeller boss is fixedly supported on the afterbody of hull by bracing frame, be located in propeller boss tail shaft rotatable, tailing axle is fixed in propeller hub, multi-disc rotation pitch cutting is fixed on the fore end outer circumference face of propeller hub, propeller boss is provided with protective cover near the outer circumference surface of one end of rotation pitch cutting, multi-disc fixedly pitch cutting is fixed in protective cover periphery, and fixedly pitch cutting is located at protective cover near one end of propeller hub.
Its further technical scheme is:
Described rotation pitch cutting is distributed on the periphery of propeller hub, and is located between the adjacent blades of the place ahead screw propeller.
Described rotation pitch cutting is positioned on the guide margin of propeller blade, and arranges along the helix line at guide margin place.
The rotating diameter of described rotation pitch cutting and fixedly pitch cutting be all less than propeller blade rotating diameter 1/3rd.
Affixed deflecting plate on the propeller boss of described tailing axle, the front end of deflecting plate is provided with inclined-plane.
According to the layout angle of bracing frame and deflecting plate and quantity, fixedly pitch cutting is set on the outer circumference surface of protective cover.
The leaf of propeller blade is slightly positioned at the top of hull bottom baseline.
Technique effect of the present utility model:
The utility model is used tandem airscrew propeller structure, by a plurality of screw propeller reasonable distribution, loads, and has improved the water flow field environment of boats and ships, can effectively avoid cavity to occur, and can increase effective thrust, improves propulsion coefficient, on the basis of string paddle structure, further on propeller boss, set up protective cover, and at propeller hub and protective cover periphery, be installed with rotation pitch cutting respectively, fixedly pitch cutting, rotation pitch cutting is together rotated in company with tailing axle, and fixedly pitch cutting and propeller boss, protective cover is together fixed on the afterbody of hull, in the process of propelling unit work, by rotation pitch cutting and fixedly the relative motion between pitch cutting by the pasture and water that enter in the water flow field environment of propelling unit work, the floating debriss such as fishing net continuously cut off, prevent that floating debris is wound around blade, damage screw propeller, for propeller, to clean out an obstacle few, the navigation channel that resistance is little, guarantee normally travelling of boats and ships, and improved the navigability of boats and ships under severe water environment, the fixedly setting of pitch cutting simultaneously, can also be as stator, the water flow field of propelling unit work is there is to the effect of rectification, and the setting of deflecting plate, not only bearing the effect of boats and ships drag fender, can also make the twisters such as pasture and water after cutting off discharge screw propeller operating range along the direction of current, further improve the water flow field environment of propelling unit work, can further improve propulsion coefficient, protection screw propeller, the leaf of propeller blade does not slightly exceed hull bottom baseline, reduces it and is exposed in the unknown water environment below hull bottom baseline, can further protect screw propeller.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model, and in figure, part is partly cutd open, and hull is shown.
Fig. 2 is the distribution schematic diagram of rotation pitch cutting.
Fig. 3 is the fixing distribution schematic diagram of pitch cutting.
Fig. 4 is the easy structure schematic diagram of the utility model and hull assembling, and pitch cutting in figure, protective cover are all not shown.
Wherein: 1, tailing axle; 11, propeller boss; 2, screw propeller; 21, blade; 211, guide margin; 22, propeller hub; 3, rotation pitch cutting; 4, protective cover; 5, fixedly pitch cutting; 6, hull bottom baseline; 7, bracing frame; 8, hull; 9, deflecting plate; 10, flathead screw.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.
See Fig. 1, the utility model comprises tailing axle 1 and screw propeller 2, at least two screw propeller 2 front and back tandems are arranged on tailing axle 1, tailing axle 1 runs through in the propeller hub 22 that is installed in propeller boss 11 and screw propeller 2, propeller boss 11 is fixedly supported on the afterbody of hull 8 by bracing frame 7, tailing axle 1 is rotatably located in propeller boss 11, tailing axle 1 is fixed in propeller hub 22, multi-disc rotation pitch cutting 3 is fixed on the fore end outer circumference face of propeller hub 22, propeller boss 11 is provided with protective cover 4 near the outer circumference surface of one end of rotation pitch cutting 3, multi-disc fixedly pitch cutting 5 is fixed in protective cover 4 peripheries by flathead screw 10, fixedly pitch cutting 5 is located at protective cover 4 near one end of propeller hub 22, see Fig. 4, the leaf of propeller blade 21 does not slightly exceed the hull bottom baseline 6 of hull 8.
Particularly, see Fig. 2, described rotation pitch cutting 3 is distributed on the periphery of propeller hub 22, be located between the adjacent blades 21 of the place ahead screw propeller 2, and be positioned on the guide margin 211 of propeller blade 21, and arrange along the helix line at guide margin 211 places of blade 21, the quantity of rotation pitch cutting 3 is consistent with the quantity of propeller blade 21; See Fig. 1, on the propeller boss 11 of described tailing axle 1, be connected with deflecting plate 9, the front end of deflecting plate 9 is provided with inclined-plane; See Fig. 3, according to layout angle and the quantity of bracing frame 7 and deflecting plate 9, fixedly pitch cutting 5 is set on the outer circumference surface of protective cover 4; See Fig. 1, the rotating diameter of described rotation pitch cutting 3 and fixedly pitch cutting 5 be all less than propeller blade 21 rotating diameter 1/3rd.
According to the quantity of screw propeller 2, can on the propeller boss 11 of tailing axle 1, be provided with the bracing frame 7 of suitable quantity, Figure 3 shows that one of the utility model embodiment, two bracing frames 7 are positioned at the first half of propeller boss 11, and position is arranged symmetrically with, a deflecting plate 8 is located at the middle, below of propeller boss 11, according to layout angle and the quantity of bracing frame 7 and deflecting plate 9, is provided with three fixedly pitch cuttings 5 on the outer circumference surface of protective cover 4.
Engine installation drives tailing axle 1, drives whole screw propellers 2 to rotate current are accelerated, and increases effective thrust, and a plurality of screw propeller 2 reasonable distribution loads, has improved the water flow field environment of boats and ships, can effectively avoid cavity to occur.
On the architecture basics of tandem propeller, on propeller boss 11, set up protective cover 4, and at propeller hub 22 and protective cover 4 peripheries, be installed with rotation pitch cutting 3 respectively, fixedly pitch cutting 5, rotation pitch cutting 3 is together rotated in company with tailing axle 1, and fixedly pitch cutting 5 and propeller boss 11, protective cover 4 is together fixed on the afterbody of hull 8, in the process of propelling unit work, by rotation pitch cutting 3 and fixedly the relative motion between pitch cutting 5 by the pasture and water that enter in the water flow field environment of propelling unit work, the floating debriss such as fishing net continuously cut off, prevent that floating debris is wound around blade, damage screw propeller, for propeller, to clean out an obstacle few, the navigation channel that resistance is little, guarantee normally travelling of propagation, and improved the navigability of boats and ships under severe water quality environment, the fixedly setting of pitch cutting 5 simultaneously, can also be as stator, the water flow field of propelling unit work is there is to the effect of rectification, and the setting of deflecting plate 9, not only bearing the effect of boats and ships drag fender, can also make the twisters such as pasture and water after cutting off discharge screw propeller operating range along the direction of current, further improve the water flow field environment of propelling unit work, can further improve propulsion coefficient, protection screw propeller.
More than describing is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range, referring to claim, within protection domain of the present utility model, can be done any type of modification.
Claims (7)
1. antiwind tandem airscrew propeller, comprise tailing axle (1) and screw propeller (2), before and after at least two screw propellers (2), tandem is arranged on tailing axle (1), tailing axle (1) runs through in the propeller hub (22) that is located at propeller boss (11) and screw propeller (2), propeller boss (11) is fixedly supported on the afterbody of hull (8) by bracing frame (7), it is characterized in that: tailing axle (1) is rotatably located in propeller boss (11), tailing axle (1) is fixed in propeller hub (22), multi-disc rotation pitch cutting (3) is fixed on the fore end outer circumference face of propeller hub (22), propeller boss (11) is provided with protective cover (4) near the outer circumference surface of one end of rotation pitch cutting (3), fixedly pitch cutting of multi-disc (5) is fixed in protective cover (4) periphery, fixedly pitch cutting (5) is located at protective cover (4) near one end of propeller hub (22).
2. by antiwind tandem airscrew propeller claimed in claim 1, it is characterized in that: described rotation pitch cutting (3) is distributed on the periphery of propeller hub (22), and be located between the adjacent blades (21) of the place ahead screw propeller (2).
3. by antiwind tandem airscrew propeller claimed in claim 2, it is characterized in that: described rotation pitch cutting (3) is positioned on the guide margin (211) of propeller blade (21), and arrange along the helix line at guide margin (211) place.
4. by antiwind tandem airscrew propeller claimed in claim 1, it is characterized in that: the rotating diameter of described rotation pitch cutting (3) and fixedly pitch cutting (5) be all less than propeller blade (21) rotating diameter 1/3rd.
5. by antiwind tandem airscrew propeller claimed in claim 1, it is characterized in that: on the propeller boss (11) of described tailing axle (1), be connected with deflecting plate (9), the front end of deflecting plate (9) is provided with inclined-plane.
6. by antiwind tandem airscrew propeller claimed in claim 5, it is characterized in that: layout angle and quantity according to bracing frame (7) and deflecting plate (9) arrange fixedly pitch cutting (5) on the outer circumference surface of protective cover (4).
7. by antiwind tandem airscrew propeller claimed in claim 1, it is characterized in that: the leaf of propeller blade (21) is slightly positioned at the top of hull bottom baseline (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546994.8U CN203528796U (en) | 2013-09-04 | 2013-09-04 | Winding-prevention tandem propeller thruster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546994.8U CN203528796U (en) | 2013-09-04 | 2013-09-04 | Winding-prevention tandem propeller thruster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203528796U true CN203528796U (en) | 2014-04-09 |
Family
ID=50415040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320546994.8U Expired - Lifetime CN203528796U (en) | 2013-09-04 | 2013-09-04 | Winding-prevention tandem propeller thruster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203528796U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628083A (en) * | 2017-03-02 | 2017-05-10 | 长江大学 | Ship underwater power device |
| CN107284633A (en) * | 2017-06-07 | 2017-10-24 | 广州市番禺远航螺旋桨制造有限公司 | It is a kind of to reduce the propeller of cavitation erosion |
| CN107554733A (en) * | 2017-09-20 | 2018-01-09 | 航天晨光（福建）管业科技有限公司 | A kind of Propeller Guard device |
| CN113320669A (en) * | 2021-06-30 | 2021-08-31 | 刘志刚 | Propeller power device and ship |
| WO2023273547A1 (en) * | 2021-06-30 | 2023-01-05 | 刘志刚 | Propeller power device and ship |
-
2013
- 2013-09-04 CN CN201320546994.8U patent/CN203528796U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628083A (en) * | 2017-03-02 | 2017-05-10 | 长江大学 | Ship underwater power device |
| CN107284633A (en) * | 2017-06-07 | 2017-10-24 | 广州市番禺远航螺旋桨制造有限公司 | It is a kind of to reduce the propeller of cavitation erosion |
| CN107284633B (en) * | 2017-06-07 | 2019-01-15 | 广州市番禺远航螺旋桨制造有限公司 | A kind of propeller that can reduce cavitation erosion |
| CN107554733A (en) * | 2017-09-20 | 2018-01-09 | 航天晨光（福建）管业科技有限公司 | A kind of Propeller Guard device |
| CN107554733B (en) * | 2017-09-20 | 2018-06-19 | 航天晨光（福建）管业科技有限公司 | A kind of Propeller Guard device |
| CN108791787A (en) * | 2017-09-20 | 2018-11-13 | 航天晨光（福建）管业科技有限公司 | A kind of adjustable type propeller protective device |
| CN108791787B (en) * | 2017-09-20 | 2019-08-13 | 航天晨光（福建）管业科技有限公司 | A kind of adjustable type propeller protective device |
| CN113320669A (en) * | 2021-06-30 | 2021-08-31 | 刘志刚 | Propeller power device and ship |
| WO2023273547A1 (en) * | 2021-06-30 | 2023-01-05 | 刘志刚 | Propeller power device and ship |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203528796U (en) | Winding-prevention tandem propeller thruster | |
| CA2787758C (en) | Paddle wheel yacht | |
| JP4789953B2 (en) | Ship propulsion system | |
| SE443759B (en) | ship's propeller | |
| CN203078743U (en) | Sawtooth propeller | |
| KR101421319B1 (en) | Nozzle propeller for ships | |
| CN201914442U (en) | Turbo type ship propeller thruster | |
| JPH05185986A (en) | Reaction fin device for marine vessel | |
| EP1348619A2 (en) | External electric drive propulsion unit for a SWATH vessel | |
| CN203528770U (en) | Mechanization aquatic plant fishing boat | |
| US2473603A (en) | Marine propeller device | |
| US3658028A (en) | Tubular thrust propeller | |
| CN202368779U (en) | Energy-saving propeller | |
| CN201062091Y (en) | Screw-propeller type water-spraying propulsion unit | |
| CN105873818A (en) | Marine propulsion unit | |
| WO2011102103A1 (en) | Thruster with duct attached and vessel comprising same | |
| CN106604866A (en) | Ship propulsion arrangement | |
| CN205186491U (en) | Bionical duck web oar | |
| CN104044718A (en) | Sawtooth propeller | |
| CN101301927A (en) | Power type ship propelling system | |
| CN211943695U (en) | Marine propeller | |
| US3457891A (en) | Propulsive systems for vessels | |
| US3412703A (en) | Steering of vessels fitted with propulsive nozzles | |
| CN204210720U (en) | A kind of wherry | |
| CN208344521U (en) | A kind of mixing is to turning gondola propulsion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
|
| CX01 | Expiry of patent term |