CN106379526A - High-strength light-weight duct and manufacturing method thereof - Google Patents
High-strength light-weight duct and manufacturing method thereof Download PDFInfo
- Publication number
- CN106379526A CN106379526A CN201610823986.1A CN201610823986A CN106379526A CN 106379526 A CN106379526 A CN 106379526A CN 201610823986 A CN201610823986 A CN 201610823986A CN 106379526 A CN106379526 A CN 106379526A
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- CN
- China
- Prior art keywords
- covering
- duct
- strength light
- circle
- light duct
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- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U50/00—Propulsion; Power supply
- B64U50/10—Propulsion
- B64U50/13—Propulsion using external fans or propellers
- B64U50/14—Propulsion using external fans or propellers ducted or shrouded
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a high-strength light-weight duct and a manufacturing method thereof. The duct comprises an alloy frame and an envelope, wherein the alloy frame comprises two rings respectively made from a thin-walled tube, and a plurality of support tubes which are used for supporting the two rings and made from thin-walled tubes; the envelope is fixed between the two rings, and uniformly covered between the two rings in the circumferential direction. On the basis of the alloy frame, the envelope for wrapping is used for further reinforcement, so that the frame structure is firmer; the envelope material is light in weight, but has sufficient strength, so can completely prevent propeller fragments from penetrate through the duct rings; and even if the envelope can not prevent the propeller fragments from penetrating through the duct rings, the throwing force is greatly reduced, thereby preventing the driver or object from injuries.
Description
Technical field
The invention belongs to lightweight aircraft propelling screws duct field and in particular to a kind of high-strength light duct and its
Preparation method.
Background technology
Lightweight aircraft（As dirigible, baby plane）With heavy aircraft（As aircraft, rocket）Propulsion duct（Duct
Circle）Main purpose or otherwise varied, the former mainly still plays a protective role, and the latter primarily serves raising thrust power
Effect.
In prior art, lightweight aircraft duct（Duct circle）Manufacturing process mainly adopt common metal frame-type and glass
Glass steel pastes shaping two ways.
Common metal frame-type：
1）Although by chosen material, this making form can accomplish that quality is relatively light, can only protected personnel or article not by spiral shell
Rotation oar is involved in, and encountered by screw the article smashed or screw itself broken after splash away and do not have protective action,
And the occurrence frequency of such accident is higher；2）This production method, often chooses the relatively low gold of price in order to cost-effective
Belong to material, framework is easily corroded, and causes potential safety hazard；3）Also for cost-effective and mitigation weight, production unit is past
Toward the quantity that can compress cross-brace material as far as possible, cause framework yielding, easily smash screw.
Fiberglass pastes type：
1）Although the duct circle that fiberglass pastes has good protective action, increased the weight of duct circle, run counter to
The lightweight aircraft principle lighter to quality requirement, for example：The requirement to weight for the aerostatics field is often calculated to a gram level, and
One secondary 20 meter level dirigible fiberglass duct circle weight, up to more than 10 kilograms, so then substantially increase being manufactured into of dirigible itself
This；
2）Because manufacture craft is comparatively laborious, once fiberglass duct irises out existing breakage needing repairing, maintenance cycle is longer, often
Impact aerial mission；
3）Because this technique quality itself is larger, outer layer covering will not be added easily again and be decorated, aesthetic measure is relatively
Difference.
Content of the invention
In order to overcome the defect of prior art, the invention provides technical scheme below：
A kind of high-strength light duct, including alloy framework, covering；Described alloy framework includes two circles being made by light-wall pipe
Body, some for support tube that is supporting two circle bodies and being made by light-wall pipe, be fixed with covering between two circle bodies, this covering
Along the circumferential direction it is uniformly covered between two circle bodies.
Further, described covering is establishment cloth.
Further, the both sides of described covering are equipped with some first apertures by way of punch device or craft, by wearing
The rope body crossing the first aperture fastens covering in alloy framework.
Further, two described light-wall pipes are equipped with some second orifices, institute by way of punch device or craft
The both sides stating covering are equipped with some first apertures by way of punch device or craft, by little through the first aperture and second
The rope body in hole ties up to covering on framework.
Further, described skin-surface paste has the means of heat-shrinkable film for playing role in decoration
A kind of preparation method of high-strength light duct it is characterised in that：Making step is,
The first step, two thin-walled pipeloops are become to be more than a certain proportion of circle body of screw；
Second step, vertical being fixed between two light-wall pipes of support tube that light-wall pipe is made, form the alloy framework of barreled；
3rd step, covering is along the circumferential direction uniformly covered between two circle bodies.
Further, in described 3rd step, covering covers in the outside of two circle bodies or inner side.
Further, in described 3rd step, the first aperture is stamped in covering both sides equipment or craft, passes through, in opposite side, body of restricting
Plain cotton fabric is fastened in alloy framework
Further, in described 3rd step, including will be beaten by way of punch device or craft on two described light-wall pipes
The both sides having some second orifices, described covering are equipped with some first apertures by way of punch device or craft, by wearing
Cross the first aperture and the rope body of second orifice ties up to covering on framework.
Further, in described 3rd step, the means of heat-shrinkable film being printed on color or pattern is pasted on skin-surface, plays dress
Decorations act on.
Compared to flat gate valve of the prior art, beneficial effects of the present invention are：
1st, by the way of alloy framework and covering establishment combine, alloy framework is integrally made up of light-wall pipe, covering is woven cloth,
Greatly reduce the weight of duct circle；
2nd, once cloth is with low cost, intensity is high for establishment, and the fixing mode of rope body is simple, therefore low cost, and locally occurs broken
Damage, can repair rapidly at short notice, not interfere with aerial mission；
3rd, on the basis of alloy framework, reinforced further using covering parcel, make frame structure firmer, and covering material
Though light but intensity is enough big, screw fragment can be stoped completely to penetrate duct circle, not live even if stopping, the strength flying out by
Significantly cut down, it is to avoid driver or or object come to harm；
4th, due to the reduction significantly of total quality, duct circle surface can increase the means of heat-shrinkable film for playing beautiful decoration effect,
Without affecting the performance of aircraft.
Brief description
Describe some specific embodiments of the present invention hereinafter with reference to the accompanying drawings by way of example, and not by way of limitation in detail.
In accompanying drawing, identical reference denotes same or similar part or part.It should be appreciated by those skilled in the art that these
Accompanying drawing is not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the overall structure diagram of alloy framework of the present invention；
Fig. 2 is the overall structure diagram of duct circle of the present invention；
Fig. 3 is covering of the present invention and the first overall structure diagram of alloy framework cooperation；
Fig. 4 is covering of the present invention and the second overall structure diagram of alloy framework cooperation.
Specific embodiment
As depicted in figs. 1 and 2, a kind of high-strength light duct, including alloy framework, covering 1；Described alloy framework includes
Two circle bodies being made by light-wall pipe 2, some for support tube 3 that is supporting two circle bodies and being made by light-wall pipe, two circles
It is fixed with covering, this covering along the circumferential direction uniformly covers and is fixed between two circle bodies between body.In alloy framework
On the basis of, reinforced further using covering parcel, make frame structure firmer, though and the light intensity of covering material is enough big, complete
Entirely can stoping the screw fragment from penetrating duct circle, not living even if stopping, the strength flying out is cut down significantly, it is to avoid drive
The person of sailing or or object come to harm.
Described covering employs establishment cloth, and woven cloth is the material of this establishment cloth with polypropylene, the third polyethylene flat filament as raw material
Relatively thin, and longitudinally, laterally all there is great tensile strength, there is good stability.Woven cloth spins geotechnique also known as having
Cloth, braided geotextile.Can certainly be replaced using the light basis weight material such as plastic skin, ox-hide and can play phase same-action.Using alloy
The mode that framework is combined with covering establishment, alloy framework is integrally made up of light-wall pipe, covering is woven cloth, greatly reduces duct
The weight of circle；
Covering is fixed in alloy framework two kinds of embodiments：
The first embodiment, as shown in figure 3, the both sides of described covering be equipped with by way of punch device or craft some
First aperture 3, is fastened covering in alloy framework by the rope body 4 through covering both sides first aperture.This kind of mode adopts one
Bar rope body sequentially passes through the first aperture of covering both sides, may be referred to the mode tied the shoelace, this kind of mode, can be with more convenient fast
Prompt covering is fixed in alloy framework.
Second embodiment, as shown in figure 4, beaten on two described light-wall pipes by way of punch device or craft
The both sides having some second orifices 5, described covering are equipped with some first apertures 3 by way of punch device or craft, by
Rope body 4 through the first aperture and second orifice ties up to covering on framework.This kind of mode needs using compared with multistage rope body, each
It is required for one section of rope body between individual first aperture and each second orifice, though this kind of mode installation process is relatively complicated, can
So that the entire length of rope body to shorten, reduce further the weight of duct circle to a certain extent.
Certainly, covering is fixed in alloy framework and is not merely only limited to both the above fixed form, furthermore it is possible to consider
It is equipped with two rounds respectively using glue bonding or by the both sides of covering, then with rope body, covering is fixed alloy framework first-class
Other equivalent modes, all include in protection scope of the present invention.
Establishment cloth is with low cost, intensity is high, and once the fixing mode of rope body is simple, therefore low cost, and locally occurs
Breakage, can repair rapidly at short notice, not interfere with aerial mission.
In order that duct circle is more attractive in appearance, can by useful to the inner surface of described covering or appearance batter in decoration make
Means of heat-shrinkable film（In figure does not mark）.Pass through printing colouring from PE film for base material, white print bottom covers hot melt adhesive layer BOPP
Film is combined, the technique rewinding shaping such as protection, is commonly called as means of heat-shrinkable film, also referred to as film covering.Means of heat-shrinkable film is placed on skin-surface,
Heated with hot iron bucket or hot hair dryer, sol layer works and means of heat-shrinkable film is bonded on covering, and film is received after being heated
Contracting.
A kind of preparation method of high-strength light duct, making step is,
The first step, two thin-walled pipeloops are become to be more than a certain proportion of circle body of screw 2；
Second step, vertical being fixed between two circle bodies of support tube 3 that light-wall pipe is made, form the alloy framework of tubbiness；
3rd step, covering 1 is along the circumferential direction uniformly covered between two circle bodies.
In described 3rd step, covering can cover in the outside of two circle bodies or inner side.
Covering is fixed in alloy framework two methods：
Its method one is that the first aperture 3 is stamped in covering both sides equipment or craft, is fastened plain cotton fabric by body 4 of restricting in opposite side
In alloy framework
Its method two is, two described light-wall pipes are equipped with by way of punch device or craft some second orifices 5,
The both sides of described covering are equipped with some first apertures 3 by way of punch device or craft, by through the first aperture and
The rope body of two apertures ties up to covering on framework.
Certainly, covering is fixed in alloy framework and is not merely only limited to both the above fixing means, furthermore it is possible to consider
It is equipped with two rounds respectively using glue bonding or by the both sides of covering, then with rope body, covering is fixed alloy framework first-class
Other equivalent modes, all include in protection scope of the present invention.
The means of heat-shrinkable film being printed on color or pattern can be pasted on covering, play decoration function.
The example that the figures above part is shown is the basic exemplary model of present invention design, is not to do other to the present invention
The restriction of form, any those skilled in the art are changed or are modified as possibly also with the technology contents of the disclosure above
The Equivalent embodiments of equivalent variations.But, every without departing from the present invention program content, according to the technology of the present invention essence to more than
Show any simple modification, equivalent variations and remodeling that example is made, still fall within protection scope of the present invention.
Claims (10)
1. a kind of high-strength light duct it is characterised in that：Including alloy framework, covering（1）；Described alloy framework includes two
The circle body being made up of light-wall pipe（2）, some for support tube that is supporting two circle bodies and being made by light-wall pipe（3）, two circles
It is fixed with covering, this covering along the circumferential direction uniformly covers and is fixed between two circle bodies between body.
2. as claimed in claim 1 a kind of high-strength light duct it is characterised in that：Described covering is establishment cloth.
3. as claimed in claim 1 a kind of high-strength light duct it is characterised in that：The both sides of described covering are set by punching
Standby or manual mode is equipped with some first apertures（3）, by the rope body through covering both sides first aperture（4）Covering is fastened
In alloy framework.
4. as claimed in claim 1 a kind of high-strength light duct it is characterised in that：Two described light-wall pipes are set by punching
Standby or manual mode is equipped with some second orifices（5）, described covering both sides by way of punch device or craft
It is equipped with some first apertures（3）, by some rope bodies passing through the first aperture and second orifice（4）Covering is tied up on framework.
5. by a kind of arbitrary described high-strength light duct of claim 1-4 it is characterised in that：Described skin-surface paste is useful
In the means of heat-shrinkable film playing role in decoration.
6. a kind of preparation method of high-strength light duct it is characterised in that：Making step is,
The first step, two thin-walled pipeloops are become to be more than a certain proportion of circle body of screw（2）；
Second step, the support tube that light-wall pipe is made（3）Vertical is fixed between two circle bodies, forms the alloy frame of tubbiness
Frame；
3rd step, by covering（1）Along the circumferential direction uniformly cover and be fixed between two circle bodies.
7. as claimed in claim 6 a kind of preparation method of high-strength light duct it is characterised in that：In described 3rd step,
Covering covers in the outside of two circle bodies or inner side.
8. as claimed in claim 6 a kind of preparation method of high-strength light duct it is characterised in that：In described 3rd step,
The first aperture is stamped in covering both sides equipment or craft（3）, by body of restricting（4）Plain cotton fabric is fastened in alloy framework.
9. as claimed in claim 6 a kind of preparation method of high-strength light duct it is characterised in that：In described 3rd step,
Including some second orifices being equipped with by way of punch device or craft on two described light-wall pipes（5）, described illiteracy
The both sides of skin are equipped with some first apertures by way of punch device or craft（3）, by little through the first aperture and second
The rope body in hole ties up to covering on framework.
10. as claimed in claim 6 a kind of preparation method of high-strength light duct it is characterised in that：In described 3rd step,
The means of heat-shrinkable film being printed on color or pattern is pasted on skin-surface, plays decoration function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823986.1A CN106379526A (en) | 2016-09-17 | 2016-09-17 | High-strength light-weight duct and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823986.1A CN106379526A (en) | 2016-09-17 | 2016-09-17 | High-strength light-weight duct and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106379526A true CN106379526A (en) | 2017-02-08 |
Family
ID=57935745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610823986.1A Pending CN106379526A (en) | 2016-09-17 | 2016-09-17 | High-strength light-weight duct and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106379526A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109747181A (en) * | 2019-03-04 | 2019-05-14 | 保定国奥新能源工程材料科技有限责任公司 | The manufacturing method of duct |
| CN113236341A (en) * | 2021-06-02 | 2021-08-10 | 山东科技大学 | Device for enhancing gas extraction in underground coal mine and using method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1384662A1 (en) * | 2002-07-26 | 2004-01-28 | C.R.F. Società Consortile per Azioni | Vtol micro-aircraft |
| CN201068201Y (en) * | 2007-05-18 | 2008-06-04 | 周东升 | Ducted fan |
| CN102874408A (en) * | 2012-11-02 | 2013-01-16 | 冯小淋 | Double ducted-propeller electric manned aircraft capable of taking off and landing vertically |
| CN104670491A (en) * | 2013-11-29 | 2015-06-03 | 空客直升机德国有限公司 | Shrouded Rotary Assembly From Segmented Composite For Aircraft |
| CN105620746A (en) * | 2016-01-17 | 2016-06-01 | 王涛 | Rotary flapping device |
-
2016
- 2016-09-17 CN CN201610823986.1A patent/CN106379526A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1384662A1 (en) * | 2002-07-26 | 2004-01-28 | C.R.F. Società Consortile per Azioni | Vtol micro-aircraft |
| CN201068201Y (en) * | 2007-05-18 | 2008-06-04 | 周东升 | Ducted fan |
| CN102874408A (en) * | 2012-11-02 | 2013-01-16 | 冯小淋 | Double ducted-propeller electric manned aircraft capable of taking off and landing vertically |
| CN104670491A (en) * | 2013-11-29 | 2015-06-03 | 空客直升机德国有限公司 | Shrouded Rotary Assembly From Segmented Composite For Aircraft |
| CN105620746A (en) * | 2016-01-17 | 2016-06-01 | 王涛 | Rotary flapping device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109747181A (en) * | 2019-03-04 | 2019-05-14 | 保定国奥新能源工程材料科技有限责任公司 | The manufacturing method of duct |
| CN113236341A (en) * | 2021-06-02 | 2021-08-10 | 山东科技大学 | Device for enhancing gas extraction in underground coal mine and using method |
| CN113236341B (en) * | 2021-06-02 | 2022-10-21 | 山东科技大学 | Device for enhancing gas extraction in underground coal mine and using method |
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Application publication date: 20170208 |