CN106516102B - A kind of composite material blade with wing tip air injection function - Google Patents
A kind of composite material blade with wing tip air injection function Download PDFInfo
- Publication number
- CN106516102B CN106516102B CN201611075503.0A CN201611075503A CN106516102B CN 106516102 B CN106516102 B CN 106516102B CN 201611075503 A CN201611075503 A CN 201611075503A CN 106516102 B CN106516102 B CN 106516102B
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- metal
- blade
- propeller
- wing tip
- fill block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/463—Blade tips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
- B64C2027/4733—Rotor blades substantially made from particular materials
- B64C2027/4736—Rotor blades substantially made from particular materials from composite materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a kind of composite material blades with wing tip air injection function, belong to rotor blade design technical field.Including：Blade ontology, bushing, root adapter, metal tube, metal fill block, metal skin, propeller connector, bolt, clamping plate, propeller；The root of blade ontology is provided with bushing, metal fill block is arranged in the cavity of blade ontology one end, metal fill block surface is concordant with the covering of blade ontology, and metal skin is socketed in the covering junction of metal fill block and blade ontology；Metal tube enters from the root of blade ontology in blade ontology, and metal fill block is passed through to be connect with the propeller at blade wing tip；Metal tube one end is connect by root adapter with air supply hose, and the other end is connect by propeller connector with propeller；By Boards wall on metal fill block, blade ontology is connect by bushing with propeller hub propeller.The present invention has the characteristics that number of parts is few, the service life is high, easy to maintain, reliability is high.
Description
Technical field
The invention belongs to rotor blade design technical fields, and in particular to a kind of composite material paddle with wing tip air injection function
Leaf.
Background technology
Currently, conventional configuration helicopter cannot meet the needs of to VTOL, big Speed Flight function, it is various new
Configuration combined type aircraft becomes the hot spot that everybody studies.A kind of combined type flight of rotorjet containing wing tip, propeller, wing
VTOL not only may be implemented in device, but also can realize big Speed Flight.
Compared with pure helicopter rotor, wing tip rotorjet eliminates heavy gear train assembly, and no longer needs
Tail-rotor anti-torque system is wanted, the complexity of system is effectively reduced, has the characteristics that easy to use, architecture quality is light.
In the existing combined type aircraft with wing tip air injection function, wing tip rotorjet use it is mostly be metal paddle
Leaf, hollow metal crossbeam are conducive to the installation of the lay and wing tip jet mechanism of transfer conduit.But Metal Rotor Blade parts
It is more, it safeguards inconvenient；In addition, there are the low drawbacks of short life, reliability for Metal Rotor Blade.
The excellent fatigue strength of composite material, multichannel posting, slow crack expansion characteristic and easy compression molding work
Skill etc., is given full play on blade.But composite material is with metal structure that there are consistency problems, how to fill jet
Set be fixed on composite material wing tip and how to carry out pipeline fitting arrangement all there is certain technical difficulty, it is easy to generate
Intensity, it is pneumatic the problems such as.
Currently, helicopter rotor blade is mostly designed and is manufactured using composite material, therefore design one kind can here
To realize the composite rotor blade of wing tip air injection function.
Invention content
The purpose of the present invention：To solve the above-mentioned problems, the present invention proposes a kind of composite wood with wing tip air injection function
Expect blade, designed by rational structure and selection, solve composite material blade and metal structure consistency problem, realizes metal
Structure is fixedly connected with composite material.
Technical scheme of the present invention：A kind of composite material blade with wing tip air injection function, including：Blade ontology, bushing,
Root adapter, metal tube, metal fill block, metal skin, propeller connector, bolt, clamping plate, propeller；
The root of the blade ontology is provided with bushing, and the blade ontology is provided with metal in the cavity of wing tip and fills out
Block, metal fill block surface is concordant with the covering of blade ontology, and the metal skin is socketed in metal fill block and blade ontology
Covering junction；
The blade body interior is provided with metal tube, and the metal tube enters blade from the root of blade ontology with 45 °
In the cavity of ontology, metal fill block is passed through to be connect with the propeller at blade wing tip；
Described metal tube one end is connect by root adapter with air supply hose, and the other end passes through propeller connector and propulsion
Device connects；
One end of the propeller and clamping plate connects, and the clamping plate other end is bolted on metal fill block, paddle
Leaf ontology is connect by bushing with propeller hub.
Preferably, the metal tube and metal fill block pre-set composite material blade body interior and pass through press moulding mode
It is integrally formed.
Preferably, root adapter one end is flared type structure, and the other end is provided with corrugated pipe structure.
Preferably, the metal tube is laid with along blade center line, and is wrapped in big sill bolt.
Preferably, the metal fill block is provided with circular through hole, and the circular through hole coordinates with metal tube.
Preferably, the metal fill block is provided with fixing groove, and the fixing groove can fix big sill bolt.
Preferably, the metal skin and clip board engagement trepanning, screw bolt passes clamping plate and metal skin are fixed on gold
Belong on fill block.
Preferably, the metal tube is connect by reserved pipe fitting with the root adapter.
The technology advantageous effect of the present invention：The present invention is by melting composite material moulded technology, hardware, pipeline fitting
Design is closed, realizes the composite material blade with wing tip air injection function.The blade is compared with Metal Rotor Blade, and number of parts is few, the longevity
Life is high, easy to maintain, reliability is high.
Description of the drawings
Fig. 1 is a kind of structural representation of a preferred embodiment of the composite material blade with wing tip air injection function of the present invention
Figure；
Fig. 2 is the root structure schematic diagram of embodiment illustrated in fig. 1；
Fig. 3 is the wing tip structural schematic diagram of embodiment illustrated in fig. 1；
Fig. 4 is the metal fill block structural schematic diagram of embodiment illustrated in fig. 1；
Wherein, 1- blades ontology, 2- bushings, the roots 3- adapter, 4- metal tubes, 5- metal fill blocks, 6- metal skins, 7-
Propeller connector, 8- bolts, 9- clamping plates, 10- propellers, 51- circular through holes, 52- fixing grooves.
Specific implementation mode
To keep the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without creative efforts, shall fall within the protection scope of the present invention.Under
Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as protecting the present invention
The limitation of range.
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings, is please referred to Fig.1 to Fig.4；
The present invention relates to a kind of composite material blades with wing tip air injection function, on the basis of composite material blade design
On, it is designed by fused metal structural member, pipeline fitting, realizes that liquid fuel is transmitted to from propeller shank in blade tip propeller, and
It is final to realize air injection function.
Include mainly blade ontology 1, bushing 2, root adapter 3, metal tube 4, metal fill block 5, metal skin 6, bolt
8 and propulsion component；
Blade ontology 1 is the foundation structure of the present invention, and metal tube 4 and metal fill block 5 are set in advance in by conventional composite wood
Expect inside the blade ontology 1 made, and is integrally formed by press moulding mode.
The blade ontology 1 is provided with metal fill block 5 in the cavity of wing tip, and the metal fill block 5 is provided with circle
Through-hole 51 and fixing groove 52, the circular through hole 51 coordinate with bolt 8, and metal fill block 5 is built in 1 end of composite material blade,
Thereon, lower surface is bonded with the covering inner surface of blade ontology 1, is that blade ontology 1 carries out bolt 8 with metal skin 6, clamping plate 9
The basis of connection.
Metal fill block 5 carries out channel design and fixing groove 52 is arranged, and is laid by winding 1 big sill bolt of blade ontology, to gold
Belong to fill block 5, metal skin 6 and propeller 10 and centrifugal force is provided.
Blade ontology 1 is internally provided with metal tube 4, metal tube 4 from the root transition region of blade ontology 1 with 45 ° of angles into
The inside for entering blade ontology 1 is arranged along blade center line and is wrapped in the big sill bolt of blade ontology 1, passes through metal fill block 5
Circular through hole 51 be pierced by the wing tip end face of blade ontology 1.Blade position of center line profile thickness is maximum, possesses best design
Space；Metal tube 4 is wrapped in inside blade ontology 1 in big sill bolt always, and is fixed by the fixing groove of metal fill block 5 52,
Destruction of the metal tube 4 to 1 internal structure of blade ontology when the big excellent plastic deformation of sill bolt can reduce blade flapping.
It should be understood that metal tube wall thickness is 1mm, outer diameter 8mm in the present embodiment.
Metal skin 6 be wrapped in the outside of blade ontology 1, clamping plate 9 inside, play good appearance and reduce aerodynamic drag
Effect.
It can be understood that：6 thickness of metal skin is 1mm in the present embodiment.
The switching of metal tube 4 and air supply hose may be implemented in root adapter 3, and one end of root adapter 3 is flared type
Pipe joint structure can realize that flared type connection, the other end are corrugated structure with metal tube 4, can be with gas supply by clip
Hose connects, and has preferable sealing effect.
Propulsion component is mainly made of propeller connector 7, clamping plate 9, propeller 10.9 one end of clamping plate is logical with blade ontology 1
Cross 4 connection bolts 8 fix, be equipped with self-locking nut and fastening glue it is locking, metal fill block 5 provide support, 9 other end of clamping plate with push away
Welding connecting mode is taken to fix into device 10；Propeller connector 7 is welded on propeller 10, and propeller connector 7 connects with metal tube 4
It is flared fitting structure to connect end, can carry out flared type connection with metal tube 4, this connection type can bear larger pressure
By force.
There are two bushing 2, blade ontology 1 is connect by double bushings 2 with propeller hub for the surface setting of the root of blade ontology 1,
And transfer load to propeller hub.
There is catalytic bed inside propeller 10, the hydrogen peroxide liquid fuel transmitted from fuselage can be resolved into gas
Body, and generated along with huge heat, high-temperature gas is sprayed from propeller 10 spout high speed, to push rotor rotational.
In conclusion a kind of composite material blade with wing tip air injection function of the present invention is by by composite material, metal knot
Structure, pipeline fitting blend, and realize that liquid fuel is transmitted to from propeller shank in blade tip propeller.Paddle blade structure number of parts is few,
Reliability is high, and is designed by rational pipeline connecting mode, ensures that pipeline can bear enough pressure.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：It is still
Can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is equally replaced
It changes；And these modifications or replacements, the essence for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution
God and range.
Claims (8)
1. a kind of composite material blade with wing tip air injection function, it is characterised in that：Including：Blade ontology (1), bushing (2), root
Portion's adapter (3), metal tube (4), metal fill block (5), metal skin (6), propeller connector (7), bolt (8), clamping plate (9),
Propeller (10)；
The root of the blade ontology (1) is provided with bushing (2), and the blade ontology (1) is provided in the cavity of wing tip
Metal fill block (5), metal fill block (5) surface is concordant with the covering of blade ontology (1), and the metal skin (6) is socketed in
The covering junction of metal fill block (5) and blade ontology (1)；
The blade ontology (1) is internally provided with metal tube (4), and the metal tube (4) is from the root of blade ontology (1) with 45 °
Into in the cavity of blade ontology (1), metal fill block (5) is passed through to be connect with the propeller (10) at blade wing tip；
Described metal tube (4) one end is connect by root adapter (3) with air supply hose, and the other end passes through propeller connector (7)
It is connect with propeller (10)；
The propeller (10) connect with one end of clamping plate (9), and clamping plate (9) other end is fixed on metal by bolt (8)
On fill block (5), blade ontology (1) is connect by bushing (2) with propeller hub.
2. a kind of composite material blade with wing tip air injection function according to claim 1, it is characterised in that：The metal
Pipe (4) and metal fill block (5) are set in advance in the inside of composite material blade ontology (1), and are integrally formed by press moulding mode.
3. a kind of composite material blade with wing tip air injection function according to claim 1, it is characterised in that：The root
Adapter (3) one end is flared type structure, and the other end is provided with corrugated pipe structure.
4. a kind of composite material blade with wing tip air injection function according to claim 2, it is characterised in that：The metal
It manages (4) to be laid with along blade center line, and is wrapped in big sill bolt.
5. a kind of composite material blade with wing tip air injection function according to claim 1, it is characterised in that：The metal
Fill block (5) is provided with circular through hole (51), and the circular through hole (51) coordinates with metal tube (4).
6. a kind of composite material blade with wing tip air injection function according to claim 1, it is characterised in that：The metal
Fill block (5) is provided with fixing groove (52), and the fixing groove (52) can fix big sill bolt.
7. a kind of composite material blade with wing tip air injection function according to claim 1, it is characterised in that：The metal
Covering (6) and clamping plate (9) coordinate trepanning, and bolt (8) sequentially passes through clamping plate (9) and metal skin (6) is fixed on metal fill block (5)
On.
8. a kind of composite material blade with wing tip air injection function according to claim 1, it is characterised in that：The metal
Pipe (4) is connect by reserved pipe fitting with the root adapter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075503.0A CN106516102B (en) | 2016-11-29 | 2016-11-29 | A kind of composite material blade with wing tip air injection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075503.0A CN106516102B (en) | 2016-11-29 | 2016-11-29 | A kind of composite material blade with wing tip air injection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106516102A CN106516102A (en) | 2017-03-22 |
| CN106516102B true CN106516102B (en) | 2018-10-02 |
Family
ID=58353949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611075503.0A Active CN106516102B (en) | 2016-11-29 | 2016-11-29 | A kind of composite material blade with wing tip air injection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106516102B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112173076B (en) * | 2020-09-25 | 2022-11-18 | 中国直升机设计研究所 | Blade root structure |
| CN113942643A (en) * | 2021-10-09 | 2022-01-18 | 中国直升机设计研究所 | Composite material blade with replaceable blade tip |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3127663A1 (en) * | 1980-07-14 | 1982-02-11 | Daniel Lee Ar-Riyãd Thompson | TURNING BLADE PLANE WITH JET DRIVE |
| CN2714419Y (en) * | 2004-05-27 | 2005-08-03 | 赵清武 | Light-duty propcopter |
| CN102501969A (en) * | 2011-12-13 | 2012-06-20 | 北京君研院科技有限公司 | One-man flight vehicle capable of jetting at points of rotor blades |
| CN103057702A (en) * | 2012-12-25 | 2013-04-24 | 天津全华时代航天科技发展有限公司 | Jet-propelled rotor helicopter |
| CN104477377A (en) * | 2014-12-31 | 2015-04-01 | 北京航空航天大学 | Composite type multi-mode multi-purpose aircraft |
| US9120564B1 (en) * | 2010-09-09 | 2015-09-01 | Groen Brothers Aviation, Inc. | Tip jet attachment apparatus and method |
| CN105480407A (en) * | 2014-10-07 | 2016-04-13 | 姚元恺 | Blade end spraying and pushing technology for rotary blades |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100072325A1 (en) * | 2008-01-22 | 2010-03-25 | Kenneth William Sambell | Forward (Upstream) Folding Rotor for a Vertical or Short Take-Off and Landing (V/STOL) Aircraft |
-
2016
- 2016-11-29 CN CN201611075503.0A patent/CN106516102B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3127663A1 (en) * | 1980-07-14 | 1982-02-11 | Daniel Lee Ar-Riyãd Thompson | TURNING BLADE PLANE WITH JET DRIVE |
| CN2714419Y (en) * | 2004-05-27 | 2005-08-03 | 赵清武 | Light-duty propcopter |
| US9120564B1 (en) * | 2010-09-09 | 2015-09-01 | Groen Brothers Aviation, Inc. | Tip jet attachment apparatus and method |
| CN102501969A (en) * | 2011-12-13 | 2012-06-20 | 北京君研院科技有限公司 | One-man flight vehicle capable of jetting at points of rotor blades |
| CN103057702A (en) * | 2012-12-25 | 2013-04-24 | 天津全华时代航天科技发展有限公司 | Jet-propelled rotor helicopter |
| CN105480407A (en) * | 2014-10-07 | 2016-04-13 | 姚元恺 | Blade end spraying and pushing technology for rotary blades |
| CN104477377A (en) * | 2014-12-31 | 2015-04-01 | 北京航空航天大学 | Composite type multi-mode multi-purpose aircraft |
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| Publication number | Publication date |
|---|---|
| CN106516102A (en) | 2017-03-22 |
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