CN108806452A - Flight theory demonstrator - Google Patents
Flight theory demonstrator Download PDFInfo
- Publication number
- CN108806452A CN108806452A CN201810468749.7A CN201810468749A CN108806452A CN 108806452 A CN108806452 A CN 108806452A CN 201810468749 A CN201810468749 A CN 201810468749A CN 108806452 A CN108806452 A CN 108806452A
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- plate
- guide plate
- side plate
- air blower
- guide
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Toys (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of flight theory demonstrator, including bottom plate, side plate, air blower, top plate and controllable fin；There are two side plates, is arranged perpendicular to bottom plate, parallel to each other, is made of transparent material；Air blower is arranged on bottom plate, and at the top of air blower, air blower, side plate, top plate and top plate form the cubical area of an one side opening for roof movement connection, and blower outlet is towards cubical area open face；Controllable fin includes two pieces of guide plates, two pieces of guide plates are flexibly connected with two side plate interior sides respectively, guide plate can vertically slide on side plate, prelocalization bar, swingle and rear locating rod are connected between two pieces of guide plates, it is connected with adjustment cam on swingle, is additionally provided with elastic ring made of rubber film by prelocalization bar, adjustment cam and in rear locating rod is coated on.The flight theory demonstrator can intuitively show plane fleight principle, simple in structure, and can show the influence factor for influencing aircraft rising.
Description
Technical field
The invention belongs to teaching equipment field, more particularly to a kind of flight theory demonstrator.
Background technology
When carrying out flight theory teaching, due to lacking intuitive experimental phenomena, student's often indigestion, and use and fly
When row device model is demonstrated, due to dummy vehicle in flight course in dynamic thus student be not easy to observe, meanwhile, by
It has been fixed in dummy vehicle structure, by the single demonstration of dummy vehicle, has been not easy the influence for allowing student to understand that aircraft rises
Factor.
Invention content
Goal of the invention：The purpose of the present invention is for the deficiency in current technology, provide a kind of flight theory demonstrator, energy
Intuitive displaying plane fleight principle, it is simple in structure, and the influence factor for influencing aircraft rising can be shown.
The present invention discloses a kind of flight theory demonstrator, including bottom plate, side plate, air blower, top plate and controllable fin；It is described
Side plate is perpendicular to bottom plate and is arranged on bottom plate, and there are two side plates, is disposed in parallel relation to one another, and side plate is made of transparent material；Air blast
Machine is arranged on bottom plate, and at the top of air blower, air blower, side plate, top plate and top plate form one and open on one side for roof movement connection
Mouthful cubical area, blower outlet is towards cubical area open face；Controllable fin include two pieces of guide plates, two pieces
Guide plate is flexibly connected with two side plate interior sides respectively, and guide plate can vertically slide on side plate, two pieces of guide plates it
Between be connected with prelocalization bar, swingle and rear locating rod, be connected with adjustment cam on swingle, adjustment cam is foam plastic
Material is made, and adjustment cam two sides are fitted closely with guide plate；It is provided with elastic ring made of rubber film, the elastic ring will
In prelocalization bar, adjustment cam and rear locating rod are coated on, distance is equal between elastic ring width and two guide plates.
As a kind of improvement of this programme, one piece of the guide plate is main guide plate.One piece is secondary guide plate, the master
Guide plate includes main guide plate substrate, and it is square plate to dominate to substrate, and prelocalization bar, swingle and rear locating rod are fixedly connected with
With dominate to substrate, prelocalization bar, swingle and rear locating rod are hollow stem, and end set has a female thread, described secondary to be oriented to
Plate includes secondary guiding substrate, and it is square plate that pair, which is oriented to substrate, and prelocalization seat, rotational positioning seat are correspondingly arranged on pair guiding substrate
It is clamped respectively with prelocalization bar, swingle and rear positioning boom end female thread with rear positioning seat；The prelocalization bar, swingle and after
It is parallel to each other and coplanar in the plane of parallel mat to position rod axis.
As a kind of improvement of this programme, it is also correspondingly arranged on adjustment tank on the main guide plate and secondary guide plate, it is described
Adjustment tank is to rotate semicircular arc slot of the rod axis as the center of circle, and adjustment tank two end point connecting line is vertical, the adjustment cam lobe
End both sides are provided with adjustment protrusion, adjust in the embedded adjustment tank of protrusion, irregular lines is also set up in adjustment protrusion.
As a kind of improvement of this programme, it is symmetrically arranged with vertical guide rail on the inside of the both side plate, guide rail is penetrated through to side
At the top of plate, sliding block is provided on the main guide plate and secondary guide plate, sliding block slides into guide rail by rail crown and can be in guide rail
It slides up and down.
As a kind of improvement of this programme, the side plate, top plate, main guide plate and secondary guide plate are transparent plastics material
It is made, color masterbatch is added in the elastic ring raw material.
As a kind of improvement of this programme, the air blower is electric fan, and wind speed is adjustable.
As a kind of improvement of this programme, the blower outlet is uniformly distributed with air blower by side plate, bottom plate and top
On region made of plate surrounds, blower outlet wind-guiding plate level is arranged with bottom plate.
Advantageous effect：Flight theory demonstrator of the present invention is provided with controllable fin, and controllable fin is in adjustment cam
Under the action of form the different wing structure of top and bottom curvature with the angle of attack.When air blower works, bottom plate, side plate, air blower
The air-flow with bottom plate flowing parallel with having in the region that top is constituted, controllable fin move under the action of air-flow, pass through tune
Section wind speed can observe motion state of the mutually isostructural wing plate under obstructed wind speed.
Controllable fin top and bottom curvature can be changed by stirring adjustment protrusion, the angle of adjustment adjustment cam in controllable fin,
Can thus observe wind speed it is identical in the case of, influence that the difference in wing plate structure moves it.
Adjustment cam is made of foamed plastics, light-weight, and adjusts width under cam free state and be slightly larger than two guiding
After distance between plates, main guide plate and secondary guide plate fasten, fitted closely on the inside of cam two sides and guide plate, it is difficult to slide, when
When applying external force to adjustment protrusion, ability adjustable cam angle.
In the flight theory demonstrator, side plate, top plate and guide plate are transparent plastics material, elastic ring be with
The material of color facilitates observation of students controllable fin motion state.
Description of the drawings
Fig. 1, the flight theory demonstrator structure schematic diagram；
Fig. 2, the controllable fin structural schematic diagram；
Fig. 3, the lateral plate structure schematic diagram；
Fig. 4, it described dominates to plate structure schematic diagram；
Fig. 5, the secondary guide board structure schematic diagram；
Fig. 6, the guide plate slide block structure schematic diagram；
Fig. 7, the adjustment cam structure schematic diagram；
Fig. 8, the adjustment cam section structure diagram；
Reference numeral：1, bottom plate；2, side plate；3, air blower；4, top plate；5, controllable fin；6, main guide plate；7, secondary guide plate；
8, cam is adjusted；9, elastic ring；20, main body；21, thickened area；22, guide rail；23, transition region；60, it dominates to substrate；61, homophony
Whole slot；62, prelocalization bar；63, swingle；64, rear locating rod；70, secondary to be oriented to substrate；71, secondary adjustment tank；72, prelocalization seat；
73, rotational positioning seat；74, rear positioning seat；75, sliding block；80, cam body；81, rotating hole；82, adjustment protrusion.
Specific implementation mode
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific implementation modes are only
For illustrating the present invention rather than limiting the scope of the invention.
A kind of flight theory demonstrator as shown in Figure 1, including bottom plate 1, side plate 2, air blower 3, top plate 4 and controllable fin
5；Side plate 2 is perpendicular to bottom plate 1 and is arranged on bottom plate 1, and there are two side plates 2, is disposed in parallel relation to one another, and side plate 2 is transparent material system
At；Air blower 3 is arranged on bottom plate 1, the flexible connection of top plate 4 and 3 top of air blower, air blower 3, side plate 2, top plate 4 and top plate 4
The cubical area of one one side opening of composition, 3 air outlet of air blower is towards cubical area open face.
Controllable fin 5 as shown in Figure 2 includes main guide plate 6, secondary guide plate 7, adjustment cam 8 and elastic ring 9.Such as Fig. 4
Shown in main guide plate 6 include 6 substrate of main guide plate, dominate to substrate 60 be square plate, prelocalization bar 62, swingle 63 and after
Locating rod is fixedly connected with and dominates to substrate 60, and prelocalization bar 62, swingle 63 and rear locating rod are hollow stem, end
It is provided with female thread.Secondary guide plate 7 as shown in Figure 5 includes that pair is oriented to substrate, and it is square plate that pair, which is oriented to substrate, secondary to be oriented on substrate
Be correspondingly arranged on prelocalization seat, rotational positioning seat and rear positioning seat respectively with prelocalization bar 62, swingle 63 and after position rod end
Portion's female thread clamping；Prelocalization bar 62, swingle 63 and rear positioning rod axis is parallel to each other and the coplanar plane in parallel mat 1
On.As shown in Figure 4 and Figure 5, it is also correspondingly arranged on main modulation slot 61 and secondary adjustment tank respectively on main guide plate 6 and secondary guide plate 7,
Adjustment tank is using 63 axis of swingle as the semicircular arc slot in the center of circle, and adjustment tank two end point connecting line is vertical.It is movable on swingle 63
It is connected with adjustment cam 8, adjustment cam 8 is made of foamed plastics, and 8 two sides of adjustment cam are fitted closely with guide plate.In addition
Elastic ring 9 made of rubber film are provided with, prelocalization bar 62, adjustment cam 8 and rear locating rod are coated on by elastic ring 9
Interior, distance is equal between 9 width of elastic ring and two guide plates.
As shown in figure 3, side plate 2 includes main body 20, main body 20 is lamellar in side plate 2 section, far from air blower 3 in main body 20
Part is provided with thickened area 21, which is greater than other regions, and thickened area 21 and other parts are provided with transition region 23,
Thickened area 21 and other parts are smoothly connected by transition region 23.Two guide rails 22 are provided on thickened area 21, guide rail 22 is vertical
Setting, perforation to 2 top of side plate.
As shown in fig. 6, by taking secondary guide plate 7 as an example, sliding block is provided on secondary guide plate 7, sliding block is slid by 22 top of guide rail
Guide rail 22 can simultaneously slide up and down in guide rail 22, and sliding block is again provided on main guide plate 6.
Adjustment cam 8 as shown in Figure 7, protruding end both sides be provided with adjustment protrusion, adjustment protrusion be respectively embedded into dominate to
In the adjustment tank of plate 6 and secondary guide plate 7, irregular lines is also set up in adjustment protrusion.Adjust 8 section structure of cam such as Fig. 8
It is shown.
Side plate 2, top plate 4, main guide plate 6 and secondary guide plate 7 are that transparent plastics material is made, in 9 raw material of elastic ring
Added with color masterbatch.Air blower 3 is electric fan, and wind speed is adjustable.3 air outlet of air blower is uniformly distributed with air blower 3 by side
On region made of plate 2, bottom plate 1 and top plate 4 surround, 3 air outlet wind-guiding plate level of air blower is arranged with bottom plate 1.
The technical means disclosed in the embodiments of the present invention is not limited only to the technological means disclosed in the above embodiment, further includes
By the above technical characteristic arbitrarily the formed technical solution of combination.
Claims (7)
1. a kind of flight theory demonstrator, it is characterised in that：Including bottom plate, side plate, air blower, top plate and controllable fin；It is described
Side plate is perpendicular to bottom plate and is arranged on bottom plate, and there are two side plates, is disposed in parallel relation to one another, and side plate is made of transparent material；Air blast
Machine is arranged on bottom plate, and at the top of air blower, air blower, side plate, top plate and top plate form one and open on one side for roof movement connection
Mouthful cubical area, blower outlet is towards cubical area open face；Controllable fin include two pieces of guide plates, two pieces
Guide plate is flexibly connected with two side plate interior sides respectively, and guide plate can vertically slide on side plate, two pieces of guide plates it
Between be connected with prelocalization bar, swingle and rear locating rod, be connected with adjustment cam on swingle, adjustment cam is foam plastic
Material is made, and adjustment cam two sides are fitted closely with guide plate；It is provided with elastic ring made of rubber film, the elastic ring will
In prelocalization bar, adjustment cam and rear locating rod are coated on, distance is equal between elastic ring width and two guide plates.
2. flight theory demonstrator according to claim 1, it is characterised in that：It is oriented to based on one piece of the guide plate
Plate, one piece is secondary guide plate, and the main guide plate includes main guide plate substrate, and it is square plate, prelocalization bar, rotation to dominate to substrate
Bull stick and rear locating rod are fixedly connected with and dominate to substrate, and prelocalization bar, swingle and rear locating rod are hollow stem, end
Portion is provided with female thread, and the pair guide plate includes that pair is oriented to substrate, and the secondary substrate that is oriented to is square plate, secondary to be oriented to corresponding on substrate set
Prelocalization seat, rotational positioning seat and rear positioning seat is equipped with to be clamped with prelocalization bar, swingle and rear positioning boom end female thread respectively；
The prelocalization bar, swingle and rear positioning rod axis are parallel to each other and coplanar in the plane of parallel mat.
3. flight theory demonstrator according to claim 2, it is characterised in that：On the main guide plate and secondary guide plate also
It is correspondingly arranged on adjustment tank, the adjustment tank is to rotate semicircular arc slot of the rod axis as the center of circle, adjustment tank two end point connecting line
Vertically, the adjustment cam lobe end both sides are provided with adjustment protrusion, adjust in the embedded adjustment tank of protrusion, are also set in adjustment protrusion
Set irregular lines.
4. flight theory demonstrator according to claim 3, it is characterised in that：It is symmetrically arranged on the inside of the both side plate perpendicular
Straight guide rail, guide rail are penetrated through to side plate, are provided with sliding block on the main guide plate and secondary guide plate, sliding block is by rail crown
It slides into guide rail and can be slided up and down in guide rail.
5. flight theory demonstrator according to claim 4, it is characterised in that：The side plate, top plate, main guide plate and pair
Guide plate is that transparent plastics material is made, and color masterbatch is added in the elastic ring raw material.
6. flight theory demonstrator according to claim 5, it is characterised in that：The air blower is electric fan, wind
Speed is adjustable.
7. flight theory demonstrator according to claim 6, it is characterised in that：The blower outlet be uniformly distributed with
On region made of air blower is surrounded by side plate, bottom plate and top plate, blower outlet wind-guiding plate level is arranged with bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468749.7A CN108806452B (en) | 2018-05-16 | 2018-05-16 | Flight principle demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468749.7A CN108806452B (en) | 2018-05-16 | 2018-05-16 | Flight principle demonstration instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108806452A true CN108806452A (en) | 2018-11-13 |
| CN108806452B CN108806452B (en) | 2020-03-31 |
Family
ID=64092500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810468749.7A Active CN108806452B (en) | 2018-05-16 | 2018-05-16 | Flight principle demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108806452B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09269274A (en) * | 1996-04-01 | 1997-10-14 | Natl Aerospace Lab | Flutter stop device for wing in wind tunnel test |
| JP2005221410A (en) * | 2004-02-06 | 2005-08-18 | Honda Motor Co Ltd | Pressure distribution measuring system |
| CN201174184Y (en) * | 2008-03-20 | 2008-12-31 | 赵明乔 | Demonstrator for air craft ascending force principle |
| CN102024358A (en) * | 2010-12-16 | 2011-04-20 | 西北工业大学 | Airplane lift demonstration instrument for physics teaching |
| CN102221444A (en) * | 2011-04-07 | 2011-10-19 | 西北工业大学 | Device for adjusting wing surface of wing wind tunnel blowing model and adjustment method |
| CN103674474A (en) * | 2013-12-23 | 2014-03-26 | 中国航空工业集团公司沈阳飞机设计研究所 | Failure simulator for full-aircraft wind tunnel experiment control plane operating device |
| CN104952320A (en) * | 2014-03-25 | 2015-09-30 | 王蕴红 | Aircraft lift demonstrator |
| CN105023483A (en) * | 2014-04-22 | 2015-11-04 | 雷力 | Aircraft lift experimental instrument for multi-angle researches |
-
2018
- 2018-05-16 CN CN201810468749.7A patent/CN108806452B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09269274A (en) * | 1996-04-01 | 1997-10-14 | Natl Aerospace Lab | Flutter stop device for wing in wind tunnel test |
| JP2005221410A (en) * | 2004-02-06 | 2005-08-18 | Honda Motor Co Ltd | Pressure distribution measuring system |
| CN201174184Y (en) * | 2008-03-20 | 2008-12-31 | 赵明乔 | Demonstrator for air craft ascending force principle |
| CN102024358A (en) * | 2010-12-16 | 2011-04-20 | 西北工业大学 | Airplane lift demonstration instrument for physics teaching |
| CN102221444A (en) * | 2011-04-07 | 2011-10-19 | 西北工业大学 | Device for adjusting wing surface of wing wind tunnel blowing model and adjustment method |
| CN103674474A (en) * | 2013-12-23 | 2014-03-26 | 中国航空工业集团公司沈阳飞机设计研究所 | Failure simulator for full-aircraft wind tunnel experiment control plane operating device |
| CN104952320A (en) * | 2014-03-25 | 2015-09-30 | 王蕴红 | Aircraft lift demonstrator |
| CN105023483A (en) * | 2014-04-22 | 2015-11-04 | 雷力 | Aircraft lift experimental instrument for multi-angle researches |
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| Publication number | Publication date |
|---|---|
| CN108806452B (en) | 2020-03-31 |
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