CN108454829A - A kind of propeller blade - Google Patents
A kind of propeller blade Download PDFInfo
- Publication number
- CN108454829A CN108454829A CN201810536239.9A CN201810536239A CN108454829A CN 108454829 A CN108454829 A CN 108454829A CN 201810536239 A CN201810536239 A CN 201810536239A CN 108454829 A CN108454829 A CN 108454829A
- Authority
- CN
- China
- Prior art keywords
- blade
- metal coating
- coating shell
- hole
- leading edge
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/16—Blades
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a kind of propeller blade, blade is equipped with the through-hole for connecting metal coating shell；The cross section of metal coating shell is inverted U-shaped, multiple mounting holes is arranged on the side wall of metal coating shell, mounting hole corresponds setting with through-hole；Rivet passes through the through-hole on blade, the mounting hole on metal coating shell, so that metal coating shell is fixedly mounted in the leading edge of blade.In the present invention, metal coating shell is mounted on by rivet in the leading edge of blade so that metal coating shell will not shake on blade, stable connection；Blade is generated prodigious abrasion by prodigious air drag, air drag in rotation to blade, wherein the air drag that the leading edge of blade is subject to is maximum；Metal coating shell is fixedly mounted in the leading edge of blade, and metal coating shell is effectively protected the leading edge of blade, prevents the abrasion of blade, and metal coating shell will not be detached from blade under the influence of centrifugal force, guarantee is effectively protected blade.
Description
Technical field
The present invention relates to air equipment field more particularly to a kind of propeller blades.
Background technology
Currently, during propeller makes, protective shell is directly adhesively fixed on to the edge of propeller, just the company of completion
It connects；In the case of this bonding connection, protective shell is contacted with the edge of propeller for face, and connection is unstable, is easy to fall off.
Invention content
To solve technical problem present in background technology, the present invention proposes that a kind of propeller blade, stable connection are not easy
It falls off.
A kind of propeller blade proposed by the present invention, blade are equipped with the through-hole for connecting metal coating shell；Metal is protected
The cross section of protective case is inverted U-shaped, multiple mounting holes is arranged on the side wall of metal coating shell, mounting hole is corresponded with through-hole
Setting；Rivet passes through the through-hole on blade, the mounting hole on metal coating shell, so that metal coating shell is fixedly mounted on blade
In leading edge.
Preferably, metal coating shell is identical as the leading edge shape of blade, and the side wall of metal coating shell compresses the surface of blade.
Preferably, the smooth surface transition at the edge of side wall and blade.
Preferably, the spacing between the through-hole on the blade tip direction of the petiole of blade to blade, blade is gradually reduced, gold
The spacing belonged between the mounting hole on protective shell is gradually reduced.
Preferably, along the blade tip direction of the petiole of blade to blade, the thickness of metal coating shell gradually increases.
Preferably, the width of the side wall of metal coating shell is the 20%-30% of blade body width.
Preferably, metal coating shell surface lacquer is handled.
In the present invention, metal coating shell is mounted on by rivet in the leading edge of blade so that metal coating shell will not be in leaf
On piece shakes, stable connection；Blade generates blade prodigious in rotation by prodigious air drag, air drag
Abrasion, wherein the air drag that the leading edge of blade is subject to is maximum；Metal coating shell is fixedly mounted in the leading edge of blade, metal
Protective shell is effectively protected the leading edge of blade, prevents the abrasion of blade, and metal coating shell will not be in centrifugal force
Effect is lower to be detached from blade, and guarantee is effectively protected blade.
Description of the drawings
Fig. 1 is the up-front structural schematic diagram of metal in propeller blade proposed by the present invention.
Fig. 2 is the up-front cross-sectional view of metal in propeller blade proposed by the present invention.
Fig. 3 is the structural schematic diagram of propeller in propeller blade proposed by the present invention.
Specific implementation mode
As shown in Figs. 1-3, Fig. 1 is the up-front structural schematic diagram of metal in propeller blade proposed by the present invention；Fig. 2 is this
Invent the up-front cross-sectional view of metal in the propeller blade proposed；Fig. 3 is spiral shell in propeller blade proposed by the present invention
Revolve the structural schematic diagram of paddle.
Referring to Fig.1-3, a kind of propeller blade proposed by the present invention, blade 3 are equipped with for connecting metal coating shell 1
Through-hole 4；The cross section of metal coating shell 1 is inverted U-shaped, and multiple mounting holes 2 are arranged on the side wall 11 of metal coating shell 1, is pacified
Dress hole 2 corresponds setting with through-hole 4；Rivet passes through the through-hole 4 on blade 3, the mounting hole 2 on metal coating shell 1, so that gold
Belong to protective shell 1 to be fixedly mounted in the leading edge 5 of blade 3.
In the present embodiment, metal coating shell 1 is mounted on by rivet in the leading edge 5 of blade 3 so that metal coating shell 1 is not
It can shake on blade 3, stable connection；Blade 3 is in rotation by prodigious air drag, and air drag is to blade 3
Generate prodigious abrasion, wherein the air drag that the leading edge 5 of blade 3 is subject to is maximum；Metal coating shell 1 is fixedly mounted on blade 3
Leading edge 5 on, metal coating shell 1 is effectively protected the leading edge 5 of blade 3, prevents the abrasion of blade 3, and metal is protected
Protective case 1 will not be detached from blade 3 under the influence of centrifugal force, and guarantee is effectively protected blade 3.
In a specific embodiment, metal coating shell 1 is identical as 5 shape of leading edge of blade 3, the side wall of metal coating shell 1
11 compress blades 3 surface, metal coating shell 1, blade 3 surface between there is no gap, and the side wall 11 of metal coating shell 1
The smooth surface transition of edge and blade 3；Therefore, additional air drag is not will produce in 3 rotation process of blade, in turn
Ensure the rotary speed of blade 3, and reduces the loss that windage is brought.
Further, in 3 rotation process of blade, to the position of blade tip, linear velocity gradually increases the petiole of blade 3, from
Mental and physical efforts gradually increase, and metal coating shell 1 also more needs the connection more consolidated；Petiole along blade 3 is to the blade tip side of blade 3
To, the spacing between through-hole 4 on blade 3 is gradually reduced, and the spacing between mounting hole 2 on metal coating shell 1 is gradually reduced,
So that the quantity of rivet gradually increases, to become better and better to the fixed function of metal coating shell 1, metal coating shell is improved
The stability of 1 installation avoids the metal coating shell 1 under the action of stronger centrifugal force from the phenomenon that shaking, being detached from occur, ensures equipment
It is safe to use；Meanwhile rivet shares the effect of centrifugal force equally, and an independent rivet is avoided to be broken because centrifugal force is excessive
Situation.
Further, in 3 rotation process of blade, to the position of blade tip, linear velocity gradually increases at the middle part of blade 3, by
The abrasion arrived is the most serious；The middle part of blade 3 to the position of petiole, linear velocity is gradually reduced, and the abrasion being subject to is smaller；Along blade
3 petiole to the blade tip direction of blade 3, the thickness of metal coating shell 1 gradually increases, to for the middle part of blade 3 to petiole
Position carry out reinforcement protection, to improve protecting effect of the metal coating shell 1 to blade 3；Meanwhile the entirety of metal coating shell 1
Weight, and then the load of blade 3 is reduced, ensure that the velocity of rotation of blade 3 is unaffected.
Further, for blade 3 in rotation process, the leading edge 5 of blade 3 receives the impact of air drag, abrasion, leaf first
The air drag that the leading edge 5 of piece 3 is subject to 3 middle part of blade is maximum, and the air that the rear of middle part to the blade 3 of blade 3 is subject to hinders
Power is smaller；The width of the side wall 11 of metal coating shell 1 is the 20%-30% of 1 width of blade body, so that metal coating shell 1
Side wall 11 is covered in the surface of blade 3, so that metal coating shell 1 is most had blade 3 by the position of greatest wear
The protection of effect reaches the maximum protection effect to blade 3；Meanwhile metal coating shell 1 will not influence turning for blade 3 because overweight
Dynamic rate.
Further, 1 surface lacquer of metal coating shell is handled, and is improved waterproof, the rustless property of metal coating shell 1, is avoided
Metal coating shell 1 is damaged because of caused by corrosion, and then ensures the protecting effect to blade 3.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of propeller blade, which is characterized in that blade (3) is equipped with the through-hole (4) for connecting metal coating shell (1)；
The cross section of metal coating shell (1) is inverted U-shaped, and multiple mounting holes (2) are arranged on the side wall (11) of metal coating shell (1),
Mounting hole (2) corresponds setting with through-hole (4)；Rivet passes through the through-hole (4) on blade (3), the peace on metal coating shell (1)
It fills hole (2), so that metal coating shell (1) is fixedly mounted in the leading edge (5) of blade (3).
2. propeller blade according to claim 1, which is characterized in that the leading edge of metal coating shell (1) and blade (3)
(5) shape is identical, and the side wall (11) of metal coating shell (1) compresses the surface of blade (3).
3. propeller blade according to claim 1, which is characterized in that the surface at the edge and blade (3) of side wall (11)
It seamlessly transits.
4. propeller blade according to claim 1, which is characterized in that along blade (3) petiole to blade (3) blade tip
Direction, the spacing between through-hole (4) on blade (3) are gradually reduced, between the mounting hole (2) on metal coating shell (1) between
Away from being gradually reduced.
5. propeller blade according to claim 1, which is characterized in that along blade (3) petiole to blade (3) blade tip
The thickness in direction, metal coating shell (1) gradually increases.
6. propeller blade according to claim 1, which is characterized in that the width of the side wall (11) of metal coating shell (1)
For the 20%-30% of blade body (1) width.
7. propeller blade according to claim 1, which is characterized in that the processing of metal leading edge (1) surface lacquer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536239.9A CN108454829A (en) | 2018-05-30 | 2018-05-30 | A kind of propeller blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536239.9A CN108454829A (en) | 2018-05-30 | 2018-05-30 | A kind of propeller blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108454829A true CN108454829A (en) | 2018-08-28 |
Family
ID=63215981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810536239.9A Pending CN108454829A (en) | 2018-05-30 | 2018-05-30 | A kind of propeller blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108454829A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB391200A (en) * | 1930-09-12 | 1933-04-11 | Gustav Schwarz G M B H | Screw propellers for air craft |
| GB548338A (en) * | 1940-08-24 | 1942-10-07 | Walter Brierley | Improvements in or relating to airscrews |
| US20020071767A1 (en) * | 2000-12-11 | 2002-06-13 | Eurocopter Deutschland Gmbh | Rotor blade with flap and flap drive |
| CN201786551U (en) * | 2009-12-30 | 2011-04-06 | 力仓风力设备(上海)有限公司 | Wind driven generator vane front edge protecting sleeve |
| CN102398674A (en) * | 2010-09-15 | 2012-04-04 | 通用电气航空系统有限公司 | Propeller blades having icephobic coating |
| CN102712360A (en) * | 2009-12-21 | 2012-10-03 | 雷蒙特亚特特拉维夫大学有限公司 | Oscillatory vorticity generator and applications thereof |
| EP2623773A2 (en) * | 2012-01-31 | 2013-08-07 | Mitsubishi Heavy Industries, Ltd. | Wind turbine blade and wind turbine generator having the same |
| DE102013210405A1 (en) * | 2013-06-05 | 2014-12-11 | Lufthansa Technik Ag | Airfoil with a protective device and corresponding protection device |
| CN104428128A (en) * | 2012-07-09 | 2015-03-18 | 斯奈克玛 | Method for fixing a metal structural reinforcement to a part of a gas turbine vane consisting of a composite material, and injection mould for implementing such a method |
| US20150086379A1 (en) * | 2013-09-26 | 2015-03-26 | Ge Aviation Systems Limited | Propeller blade assembly |
| CN106194577A (en) * | 2015-05-28 | 2016-12-07 | 菱重维斯塔斯海上风力有限公司 | Air vane and wind power generation plant and the manufacture of air vane or remodeling method |
| US20170016134A1 (en) * | 2014-02-25 | 2017-01-19 | Safran Aircraft Engines | Protective edge for a blade and method of manufacturing said edge |
| DE102015115190A1 (en) * | 2015-09-09 | 2017-03-09 | Fichtner & Schicht GmbH | Wind turbine |
| US20180119551A1 (en) * | 2016-10-28 | 2018-05-03 | Safran Aircraft Engines | Reinforcement for the leading edge of a turbine engine blade |
| CN208746232U (en) * | 2018-05-30 | 2019-04-16 | 安徽卓尔航空科技有限公司 | A kind of propeller blade |
-
2018
- 2018-05-30 CN CN201810536239.9A patent/CN108454829A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB391200A (en) * | 1930-09-12 | 1933-04-11 | Gustav Schwarz G M B H | Screw propellers for air craft |
| GB548338A (en) * | 1940-08-24 | 1942-10-07 | Walter Brierley | Improvements in or relating to airscrews |
| US20020071767A1 (en) * | 2000-12-11 | 2002-06-13 | Eurocopter Deutschland Gmbh | Rotor blade with flap and flap drive |
| CN102712360A (en) * | 2009-12-21 | 2012-10-03 | 雷蒙特亚特特拉维夫大学有限公司 | Oscillatory vorticity generator and applications thereof |
| CN201786551U (en) * | 2009-12-30 | 2011-04-06 | 力仓风力设备(上海)有限公司 | Wind driven generator vane front edge protecting sleeve |
| CN102398674A (en) * | 2010-09-15 | 2012-04-04 | 通用电气航空系统有限公司 | Propeller blades having icephobic coating |
| EP2623773A2 (en) * | 2012-01-31 | 2013-08-07 | Mitsubishi Heavy Industries, Ltd. | Wind turbine blade and wind turbine generator having the same |
| CN104428128A (en) * | 2012-07-09 | 2015-03-18 | 斯奈克玛 | Method for fixing a metal structural reinforcement to a part of a gas turbine vane consisting of a composite material, and injection mould for implementing such a method |
| DE102013210405A1 (en) * | 2013-06-05 | 2014-12-11 | Lufthansa Technik Ag | Airfoil with a protective device and corresponding protection device |
| US20150086379A1 (en) * | 2013-09-26 | 2015-03-26 | Ge Aviation Systems Limited | Propeller blade assembly |
| CN104512536A (en) * | 2013-09-26 | 2015-04-15 | 通用电气航空系统有限公司 | Propeller blade assembly |
| US20170016134A1 (en) * | 2014-02-25 | 2017-01-19 | Safran Aircraft Engines | Protective edge for a blade and method of manufacturing said edge |
| CN106194577A (en) * | 2015-05-28 | 2016-12-07 | 菱重维斯塔斯海上风力有限公司 | Air vane and wind power generation plant and the manufacture of air vane or remodeling method |
| DE102015115190A1 (en) * | 2015-09-09 | 2017-03-09 | Fichtner & Schicht GmbH | Wind turbine |
| US20180119551A1 (en) * | 2016-10-28 | 2018-05-03 | Safran Aircraft Engines | Reinforcement for the leading edge of a turbine engine blade |
| CN208746232U (en) * | 2018-05-30 | 2019-04-16 | 安徽卓尔航空科技有限公司 | A kind of propeller blade |
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