SE530428C2 - A method for producing a raised propeller blade and a propeller blade produced by the method - Google Patents
A method for producing a raised propeller blade and a propeller blade produced by the methodInfo
- Publication number
- SE530428C2 SE530428C2 SE0600499A SE0600499A SE530428C2 SE 530428 C2 SE530428 C2 SE 530428C2 SE 0600499 A SE0600499 A SE 0600499A SE 0600499 A SE0600499 A SE 0600499A SE 530428 C2 SE530428 C2 SE 530428C2
- Authority
- SE
- Sweden
- Prior art keywords
- blade
- propeller blade
- propeller
- roller
- producing
- Prior art date
Links
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
- B63H1/28—Other means for improving propeller efficiency
-
- 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
- B63H1/18—Propellers with means for diminishing cavitation, e.g. supercavitation
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hydraulic Turbines (AREA)
- Coating By Spraying Or Casting (AREA)
Description
530 428 Figur 1 visar en fyrbladig fartygspropeller. 530 428 Figure 1 shows a four-bladed ship propeller.
Figur 2 visar i tvärsnitt en del av en propelleryta.Figure 2 shows in cross section a part of a propeller surface.
Figur 3 visar en anordning för åstadkommande av en ribbat yta.Figure 3 shows a device for producing a ribbed surface.
Figur 4 visar anordningen enligt figur 3 i arman projektion.Figure 4 shows the device according to figure 3 in another projection.
Figur 5 visar en variant av anordningen enligt figur 4.Figure 5 shows a variant of the device according to figure 4.
Figur 1 visar en fyrbladig propeller där bladen l,2,3 och 4 är fastskruvade på navet 5. På bladet 1 är med 6 markerat ett område där ytan försetts med små cirkulära ribbor. Ribborna kan vara på bladets båda sidor.Figure 1 shows a four-blade propeller where the blades 1, 2, 3 and 4 are screwed onto the hub 5. On the blade 1, an area is marked with 6 where the surface is provided with small circular ribs. The ribs can be on both sides of the blade.
Figur 2 visar i snitt ett avsnitt av en propeller där ytmönstret framgår. Här syns ribbor 7, vilka ligger tätt intill varandra. Ribborna har en utåt avsmalnande form och kan ha rundade åsar 8 samt rundade dalar 9 mellan sig. Höjden på ribboma är lämpligen mindre än en halv millimeter och avståndet mellan dem mindre än en millimeter. Förhållandet mellan ribbomas höjd och avståndet mellan dem kan vara annat än det som framgår av figuren. Det kan med det beskrivna framställningsförfarandet också ordnas så att ribboma har korta avbrott och att dessa är så täta att längden av åsama mellan avbrotten blir mycket korta. Om längden mellan två avbrott är mycket liten kan beteckningen upphöjning vara mera relevant än ås eller ribba.Figure 2 shows in section a section of a propeller where the surface pattern is shown. Here you can see ribs 7, which are close together. The ribs have an outwardly tapering shape and can have rounded ridges 8 and rounded valleys 9 between them. The height of the ribs is suitably less than half a millimeter and the distance between them less than one millimeter. The relationship between the height of the ribs and the distance between them may be different from that shown in the figure. With the production method described, it can also be arranged so that the ribs have short breaks and that these are so dense that the length of the ridges between the breaks becomes very short. If the length between two breaks is very small, the term elevation may be more relevant than ridge or rib.
Figur 3 visar en princip för framställning av ribbor på ett propellerblad med slät yta. Bladet visas i snitt enligt den streckprickade linjen A-A. Ett propellerblad 10 är här fastskruvat på ett nav 11, vilket är roterbart kring en fast axel 12. Axeln är fastsatt i ett stativ med ovanbalk 13 och underbalk 14.Figure 3 shows a principle for producing ribs on a propeller blade with a smooth surface. The blade is shown in section along the dotted line A-A. A propeller blade 10 is here screwed onto a hub 11, which is rotatable about a fixed shaft 12. The shaft is fixed in a frame with upper beam 13 and lower beam 14.
Bladet 10 kan vara fastskruvat på navet 11 så att dess bladyta i huvudsak blir vågrät. Navet kan dock konstrueras så att bladet vrides under det att det roterar kring axeln 12 för att den yta som just skall formas blir ungefär vågrät. Med 15 och 16 betecknas delar vilka är rörliga längs ovanbalken och underbalken.The blade 10 may be screwed onto the hub 11 so that its blade surface becomes substantially horizontal. However, the hub can be designed so that the blade is rotated while rotating about the shaft 12 so that the surface to be formed is approximately horizontal. 15 and 16 denote parts which are movable along the upper beam and the lower beam.
På delarna 15 och 16 är hydraulanordningar 17 och 18 fastsatta i vars roterbara valsar 19 och 20 är lagrade. Valsarna kan t.ex. ha tio spår och framställda så att dess åsar har mycket stor hårdhet. Det är dessa åsar som genom att trycka hårt mot propellerytan får dess ytskikt att flyta så att ett ribbmönster uppstår. I detta fall är det propellerbladet som sakta roterar kring axeln 12 under det att de tryckande valsarna 19 och 20 roterar medan de formar bladets ytor. Beroende på bladets form kan valsama med oförändrat tryck mot šbladytorna av hydraulanordningama 17 och 18 följa bladets form.On the parts 15 and 16, hydraulic devices 17 and 18 are fixed in whose rotatable rollers 19 and 20 are mounted. The rollers can e.g. have ten grooves and made so that its ridges have a very high hardness. It is these ridges that, by pressing hard against the propeller surface, cause its surface layer to float so that a rib pattern is formed. In this case, it is the propeller blade that rotates slowly about the shaft 12 while the pushing rollers 19 and 20 rotate as they form the surfaces of the blade. Depending on the shape of the blade, the rollers with unchanged pressure against the blade surfaces of the hydraulic devices 17 and 18 can follow the shape of the blade.
Samtidigt som propellerbladet roterar kring axeln 12 kan delarna 15 och 16 röra sig inåt mot axeln 12 en valsbredd per varv av propellerbladet. Givetvis bör alla propellerns blad vara skruvade på navet vid bearbetningen. 530 423 3 På figur 4 syns anordningen enligt figur 3 i en annan projektion Figur 5 visar en variant av anordningen enligt figurerna 3 och 4. Här är delarna 21 och_22 rörliga även vinkelrät mot riktningen längs ovanbalken och underbalken. Aven hydraulanordningarna 23 och 24 är ordnade så att deras lutning kan ändras. Avsikten är att de krafter som trycker de formande valsarna mot propellerbladsytoma skall vara motriktade. Denna anordning kan vara lämplig när propellerbladens ytor inte kan fås i någorlunda vågrät position.At the same time as the propeller blade rotates about the shaft 12, the parts 15 and 16 can move inwards towards the shaft 12 one roll width per revolution of the propeller blade. Of course, all the blades of the propeller should be screwed onto the hub during machining. 530 423 3 Figure 4 shows the device according to Figure 3 in another projection. Figure 5 shows a variant of the device according to Figures 3 and 4. Here the parts 21 and 22 are also movable perpendicular to the direction along the upper beam and the lower beam. The hydraulic devices 23 and 24 are also arranged so that their inclination can be changed. The intention is that the forces which press the forming rollers against the propeller blade surfaces should be opposite. This device may be suitable when the surfaces of the propeller blades are not available in a reasonably horizontal position.
I beskrivningen och i kraven har använts benämningen fartygspropeller. Detta ord har använts för att skilja den från propellrar för flygplan. Begreppet får inte tolkas som om propellern och förfarandet uteslutande skulle vara användbart för det som benämns fartyg utan även för båtar av alla slag.In the description and in the requirements, the term ship propeller has been used. This word has been used to distinguish it from propellers for eye planes. The concept must not be interpreted as meaning that the propeller and the procedure would be useful exclusively for what are called ships but also for boats of all kinds.
Det kan vara möjligt att åstadkomma motsvarande ribbor genom att använda ett självroterande fräsverktyg som samtidigt fräser flera spår intill varandra.It may be possible to achieve corresponding ribs by using a self-rotating milling tool which simultaneously mills several grooves next to each other.
Med hänsyn till att rostfritt stål sliter hårt på ett skärande verktyg blir hållbarheten låg för en sådan fräs samtidigt som avverkningshastigheten är liten varför förfarandet blir kostsamt. Om propellern är tillverkad av brons blir slitaget avsevärt mindre samtidigt som avverkningshastigheten blir större; Dock är det tidigare nämnda förfarandet genom prägling klart överlägset.Considering that stainless steel wears hard on a cutting tool, the durability of such a cutter will be low while the felling speed is small, which is why the procedure becomes expensive. If the propeller is made of bronze, the wear will be considerably less at the same time as the felling speed will be greater; However, the aforementioned embossing process is clearly superior.
Claims (2)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0600499A SE530428C2 (en) | 2006-03-03 | 2006-03-03 | A method for producing a raised propeller blade and a propeller blade produced by the method |
PCT/SE2007/000037 WO2007100281A1 (en) | 2006-03-03 | 2007-01-17 | Procedure to provide a propeller with ridges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0600499A SE530428C2 (en) | 2006-03-03 | 2006-03-03 | A method for producing a raised propeller blade and a propeller blade produced by the method |
Publications (2)
Publication Number | Publication Date |
---|---|
SE0600499L SE0600499L (en) | 2007-09-04 |
SE530428C2 true SE530428C2 (en) | 2008-06-03 |
Family
ID=38459316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0600499A SE530428C2 (en) | 2006-03-03 | 2006-03-03 | A method for producing a raised propeller blade and a propeller blade produced by the method |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE530428C2 (en) |
WO (1) | WO2007100281A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0701720L (en) * | 2007-07-16 | 2008-06-03 | Ragnar Winberg | Device for chaplain turbines for supplying the rotor blades with micro-ribs and the method for creating the micro-grooves on the rotor blades. Use of the device at a power plant |
DE202009018457U1 (en) * | 2009-08-03 | 2011-08-26 | Wenqi Wu | High performance and powerful ship propeller |
CN103158846A (en) * | 2011-12-09 | 2013-06-19 | 联合船舶设计发展中心 | Full-speed domain propeller unit |
CN110053765A (en) * | 2019-04-29 | 2019-07-26 | 安徽冠廷科技有限公司 | Blade |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE18245C (en) * | F. MARINGER in Düsseldorf, Klosterstrafse 4 | Innovation on propeller blades | ||
US1531967A (en) * | 1923-07-26 | 1925-03-31 | Gen Electric | Propeller |
AU6037390A (en) * | 1989-07-25 | 1991-02-22 | Hans Willi Velke | Fluid dynamic surfaces |
DE9013099U1 (en) * | 1990-09-14 | 1991-11-07 | Moser, Josef, 8058 Pretzen, De | |
DE9316009U1 (en) * | 1993-10-20 | 1994-01-13 | Moser Josef | Surface of a fluid-flowed body |
-
2006
- 2006-03-03 SE SE0600499A patent/SE530428C2/en not_active IP Right Cessation
-
2007
- 2007-01-17 WO PCT/SE2007/000037 patent/WO2007100281A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2007100281A1 (en) | 2007-09-07 |
SE0600499L (en) | 2007-09-04 |
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Legal Events
Date | Code | Title | Description |
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NUG | Patent has lapsed |