CN106286011A - A kind of duct wall and the adjustable ducted fan in blade tip gap - Google Patents
A kind of duct wall and the adjustable ducted fan in blade tip gap Download PDFInfo
- Publication number
- CN106286011A CN106286011A CN201610655095.XA CN201610655095A CN106286011A CN 106286011 A CN106286011 A CN 106286011A CN 201610655095 A CN201610655095 A CN 201610655095A CN 106286011 A CN106286011 A CN 106286011A
- Authority
- CN
- China
- Prior art keywords
- duct
- wallboard
- skeleton
- wall
- ducted fan
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K5/00—Plants including an engine, other than a gas turbine, driving a compressor or a ducted fan
Abstract
The invention discloses a kind of duct wall and the adjustable ducted fan in blade tip gap, it is structurally characterized in that: duct skeleton and duct wallboard are connected by some regulation screws；Having kidney-shaped screw hole on duct skeleton, be pasted with adjusting nut outside duct wallboard, regulation screw kidney-shaped bolt hole from duct skeleton is through being screwed into the adjusting nut being attached at outside duct wallboard；Described annular duct wall is open annular, connect with joint sheet at the opened gap of annular duct wall, joint sheet upper, middle and lower three part is provided with three pieces of fixing sticking patch, each piece of fixing sticking patch is connected by three fixing screws, wherein two pieces of fixing sticking patch are arranged on upper and lower two ends outside duct wallboard, and other one piece is arranged in the middle of inside duct wallboard.The invention have the advantage that the elliptic problem that large thin-wall duct can be overcome easily to occur.So that the gap everywhere adjusted between ducted fan blade tip and duct wallboard is sufficiently small but will not touch the reasonable clearance of mill, improve the efficiency of ducted fan.
Description
Technical field
The present invention relates to a kind of Large Efficient ducted fan, be specially a kind of duct wall and the adjustable duct in blade tip gap
Fan.
Background technology
The efficiency of ducted fan is affected very big by the gap between duct wall and blade tip, and gap is the smaller the better in theory, but
Gap is too small, and easily cause blade tip and duct wall touches mill, and blade and duct wall are broken in serious meeting, especially to easily becoming
For shape is oval large thin-wall duct, blade tip excesssive gap is collided with blade tip duct and the contradiction deposited is the most prominent.Therefore
It is particularly important to Large Efficient ducted fan that regulation controls rational duct gap.The knot of the adjustable regulation in some duct gap in the past
Structure, construction weight is big, and complexity is difficult to operation.This patent proposes a kind of simple and practical gap adjustment structure and is expected to preferably solve
Certainly this problem, promotes the development and application of Large Efficient ducted fan.
Summary of the invention
The present invention seeks to the elliptic problem that large thin-wall duct can be overcome easily to occur, propose a kind of duct wall and oar
The adjustable ducted fan of intercuspal space, adjust the gap everywhere between ducted fan blade tip and duct wallboard be sufficiently small but not
The reasonable clearance of mill can be touched, improve the efficiency of ducted fan.
The technical solution used in the present invention is as follows: a kind of duct wall and the adjustable ducted fan in blade tip gap, including containing
Road skeleton, duct wallboard, regulation screw；Duct wallboard is made up of annular duct wall and joint sheet；It is characterized in that: duct
Skeleton and duct wallboard are connected by some regulation screws；Have kidney-shaped screw hole on duct skeleton, attach outside duct wallboard
Having adjusting nut, regulation screw kidney-shaped bolt hole from duct skeleton is through being screwed into the regulation spiral shell being attached at outside duct wallboard
Female；Described annular duct wall is open annular, connects with joint sheet, fill-in pad at the opened gap of annular duct wall
Sheet upper, middle and lower three part is provided with three pieces of fixing sticking patch, and each piece of fixing sticking patch is connected by three fixing screws, wherein consolidates for two pieces
Determining sticking patch and be arranged on upper and lower two ends outside duct wallboard, other one piece is arranged in the middle of inside duct wallboard.
Duct skeleton of the present invention includes two toroidal frames and some support bars, and two toroidal frames are by some support bars
Connect, on two toroidal frames up and down that described kidney-shaped screw hole is opened on duct skeleton.
Regulation screw of the present invention and duct skeleton contact position are provided with pad.
Being disposed with axial support (toroidal frame) on duct skeleton of the present invention, this support can guarantee that the axial location of duct
Will not glance off；At duct wallboard split ring use joint sheet by closely sealed at opened gap, duct wallboard split ring with fill out
The screw that is connected by filling pad connects, succinct efficient, light weight.Due to duct wallboard with joint sheet thickness is the least passes through
Use on the surface of duct wallboard and joint sheet, be pasted with some nuts, simplify processing technology and workload, thus ensure
At opened gap closely sealed.
Duct skeleton of the present invention is the supporting construction of whole duct electromotor, its function its one of be subject to load,
Framework is tubulose, the quality of a certain degree of minimizing integrated member；Have on it outside some kidney-shaped screw holes and duct wallboard
Fixing nut be connected, regulation screw kidney-shaped screw hole from duct skeleton is attached at outside duct wallboard through being screwed into
Fixing nut, the duct wall radial position of this position of scalable, kidney-shaped screw hole can allow regulation screw at regulation duct wall
Time can be circumferentially moved to adapt to the slight change of its position.
Duct wallboard of the present invention is opening anchor ring and comprises joint sheet, and kidney-shaped screw hole can allow regulation screw exist
Can be circumferentially moved to adapt to the slight change of its position during regulation duct wall, at opened gap, use joint sheet after regulation
Filling, joint sheet plate of facing the wall and meditating with split ring is connected by screw with three pieces of sticking patch, thus overcomes large thin-wall duct easy
The elliptic problem occurred.
The invention have the advantage that the elliptic problem that large thin-wall duct can be overcome easily to occur.So that adjustment duct
Gap everywhere between fan blade tip and duct wallboard is sufficiently small but will not touch the reasonable clearance of mill, improves duct
The efficiency of fan.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the CONSTRUCTED SPECIFICATION figure of the duct wallboard of the present invention.
Fig. 3 is the duct structural representation that the present invention does not contains joint sheet.
Fig. 4 is the toroidal frame on duct of the present invention and regulation screw joint detail figure.
Fig. 5 is that the toroidal frame on duct of the present invention is connected profile with regulation screw.
Fig. 6 is the front view of the present invention.
Fig. 7 is the left view of the present invention.
Fig. 8 is the top view of the present invention.
Fig. 9 is that the duct wallboard opening anchor ring of the present invention and joint sheet are by fixing sticking patch connection diagram.
In the drawings, 1, duct skeleton；2, duct wallboard；3, regulation screw；4, adjusting nut, 5, pad, 6, fixing screw；
7, fixing sticking patch；8, fixing nut；9, joint sheet, 10, annular duct wall, 11, kidney-shaped screw hole, 12, two toroidal frames,
13, some support bars.
Detailed description of the invention
As Figure 1-Figure 8, the present invention is such to work and enforcement, and a kind of duct wall is adjustable with blade tip gap
Ducted fan, including duct skeleton 1, duct wallboard 2, regulation screw 3；Duct wallboard 2 is by annular duct wall 10 and fill-in pad
Sheet 9 forms；It is characterized in that: duct skeleton 1 and duct wallboard 2 are connected by some regulation screws 3；Have on duct skeleton 1
Kidney-shaped screw hole 11, is pasted with adjusting nut 4 outside duct wallboard 2, regulate the screw 3 kidney-shaped bolt hole from duct skeleton 1
11 through being screwed into the adjusting nut 4 being attached at outside duct wallboard 1；Described annular duct wall 10 is open annular, in annular
Connecting with joint sheet 9 at the opened gap of duct wall 10, joint sheet 9 upper, middle and lower three part is provided with three pieces of fixing sticking patch 7,
Each piece of fixing sticking patch 7 is connected by three fixing screws 6, and wherein two pieces of fixing sticking patch 7 are arranged on outside duct wallboard 2 upper and lower
Two ends, other one piece is arranged in the middle of inside duct wallboard 2；Described duct skeleton 1 includes two toroidal frames 12 and some supports
Bar 13, two toroidal frames 12 are connected by some support bars 13, and it is upper and lower that described kidney-shaped screw hole 11 is opened on duct skeleton 1
On two toroidal frames 12；Described regulation screw 3 and duct skeleton 1 contact position are provided with pad 5；Described fixing nut 8 is attached at
Duct inside panel and the nut of duct exterior panel.
Have some kidney-shaped screw holes 11 on duct skeleton 1, be pasted with outside duct wallboard 2 and be fixed with adjusting nut 4, adjust
The joint screw 3 kidney-shaped screw hole 11 from duct skeleton 1 is through being screwed into the fixing nut 4 being attached at outside duct wallboard 2, adjustable
Save the duct wall radial position of this position, kidney-shaped screw hole 11 can allow regulation screw 3 regulate duct wall time can be circumferentially
Mobile to adapt to the slight change of its position.Annular duct wall is open annular, fills out with joint sheet 9 at opened gap
Filling, be connected with split ring duct wallboard 2 by joint sheet 9 with two pieces of fixing sticking patch 7 outside duct wallboard 2, connecting portion is adopted
It is connected with the nut being attached on duct wallboard with screw.By rotating the screw head of duct skeleton waist-shaped hole end, thus
Change the gap of duct wall and blade tip, prevent the elliptic problem that thin-walled duct easily occurs, so that adjust ducted fan
Gap everywhere between blade tip and duct wallboard is sufficiently small but will not touch the reasonable clearance of mill, improves ducted fan
Efficiency.
Claims (3)
1. duct wall and the adjustable ducted fan in blade tip gap, including duct skeleton, duct wallboard, regulation screw；Contain
Road wallboard is made up of annular duct wall and joint sheet；It is characterized in that: duct skeleton and duct wallboard are by some regulations
Screw connects；Having kidney-shaped screw hole on duct skeleton, be pasted with adjusting nut outside duct wallboard, regulation screw is from duct bone
Kidney-shaped bolt hole on frame is through being screwed into the adjusting nut being attached at outside duct wallboard；Described annular duct wall is split ring
Shape, connects with joint sheet at the opened gap of annular duct wall, and joint sheet upper, middle and lower three part is provided with three pieces and fixes
Sticking patch, each piece of fixing sticking patch is connected by three fixing screws, and wherein two pieces of fixing sticking patch are arranged on outside duct wallboard
Lower two ends, other one piece is arranged in the middle of inside duct wallboard.
A kind of duct wall the most according to claim 1 and the adjustable ducted fan in blade tip gap, it is characterised in that: described
Duct skeleton includes that two toroidal frames and some support bars, two toroidal frames are connected by some support bars, described kidney-shaped screw
On two toroidal frames up and down that hole is opened on duct skeleton.
A kind of duct wall the most according to claim 1 and the adjustable ducted fan in blade tip gap, it is characterised in that: described
Regulation screw and duct skeleton contact position are provided with pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655095.XA CN106286011A (en) | 2016-08-11 | 2016-08-11 | A kind of duct wall and the adjustable ducted fan in blade tip gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655095.XA CN106286011A (en) | 2016-08-11 | 2016-08-11 | A kind of duct wall and the adjustable ducted fan in blade tip gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106286011A true CN106286011A (en) | 2017-01-04 |
Family
ID=57669443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610655095.XA Pending CN106286011A (en) | 2016-08-11 | 2016-08-11 | A kind of duct wall and the adjustable ducted fan in blade tip gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286011A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000297658A (en) * | 1999-04-09 | 2000-10-24 | Mitsubishi Heavy Ind Ltd | Duct |
| CN101985889A (en) * | 2009-07-28 | 2011-03-16 | 通用电气公司 | System and method for clearance control in a rotary machine |
| CN102745328A (en) * | 2012-07-13 | 2012-10-24 | 北京理工大学 | Bypass with tip eddy-current confinement effect |
| CN103587682A (en) * | 2013-11-11 | 2014-02-19 | 中国南方航空工业(集团)有限公司 | Air vehicle |
| CN105179027A (en) * | 2014-05-30 | 2015-12-23 | 通用电气公司 | Apparatus and method for adjusting an inner casing of a turbomachine |
| CN105508053A (en) * | 2015-12-29 | 2016-04-20 | 中国航空工业集团公司沈阳发动机设计研究所 | Gas turbine intake inner runner structure with inner mounting edge structure |
| CN205311255U (en) * | 2015-12-11 | 2016-06-15 | 中国南方航空工业(集团)有限公司 | Two duct carplane |
-
2016
- 2016-08-11 CN CN201610655095.XA patent/CN106286011A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000297658A (en) * | 1999-04-09 | 2000-10-24 | Mitsubishi Heavy Ind Ltd | Duct |
| CN101985889A (en) * | 2009-07-28 | 2011-03-16 | 通用电气公司 | System and method for clearance control in a rotary machine |
| CN102745328A (en) * | 2012-07-13 | 2012-10-24 | 北京理工大学 | Bypass with tip eddy-current confinement effect |
| CN103587682A (en) * | 2013-11-11 | 2014-02-19 | 中国南方航空工业(集团)有限公司 | Air vehicle |
| CN105179027A (en) * | 2014-05-30 | 2015-12-23 | 通用电气公司 | Apparatus and method for adjusting an inner casing of a turbomachine |
| CN205311255U (en) * | 2015-12-11 | 2016-06-15 | 中国南方航空工业(集团)有限公司 | Two duct carplane |
| CN105508053A (en) * | 2015-12-29 | 2016-04-20 | 中国航空工业集团公司沈阳发动机设计研究所 | Gas turbine intake inner runner structure with inner mounting edge structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
|
| WD01 | Invention patent application deemed withdrawn after publication |