CN109827739A - Wind tunnel test is stretched disturbing flow device - Google Patents
Wind tunnel test is stretched disturbing flow device Download PDFInfo
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- CN109827739A CN109827739A CN201910262845.0A CN201910262845A CN109827739A CN 109827739 A CN109827739 A CN 109827739A CN 201910262845 A CN201910262845 A CN 201910262845A CN 109827739 A CN109827739 A CN 109827739A
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Abstract
The present invention discloses a kind of flexible disturbing flow device of wind tunnel test, including substrate and the wind field adjusting unit of keeping out the wind, it includes electric machine assembly that wind field, which adjusts unit, the electric machine assembly, which is fixed on, to keep out the wind on substrate, keeping out the wind two pieces of expansion plates are installed on substrate, positioned at the same side for the substrate that keeps out the wind, two pieces of expansion plates are located at electric machine assembly two sides for expansion plate and the electric machine assembly, expansion plate and substrate-parallel of keeping out the wind, expansion plate, which is slidedly assemblied in, to keep out the wind on substrate.Using a kind of flexible disturbing flow device of wind tunnel test of the invention, it is power by controlling the electric machine assembly to keep out the wind on substrate, it is pushed by the rotation of screw rod and drives expansion plate flexible, change different height and position wind field adjusts the particular state of unit, to achieve the purpose that adjust wind field, this process is convenient, and required time is short.
Description
Technical field
The present invention relates to a kind of wind-tunnel disturbing flow devices, and in particular to a kind of flexible disturbing flow device of wind tunnel test.
Background technique
Wind tunnel experiment is an indispensable component part in flight development work.It is not only in aerospace work
It plays an important role in the research and development of journey, with the development of industrial aerodynamics, in communications and transportation, building construction, wind
It is even more indispensable for the fields such as capable of utilizing.In wind tunnel test, the flow regime of wind is easy to control, and model or material object are fixed on
Blowing repeatedly is carried out in wind-tunnel, and experimental data can be obtained by measurement and control instrument and equipment.Wedge and roughness element are widely answered
For the Boundary layer simulation in wind tunnel test, different landforms spy can be simulated by the shape and distribution of wedge and roughness element
The mean wind speed and turbulivity section of sign.
When carrying out wind tunnel experiment, spoiler is usually installed on wedge, by the position and the spoiler that adjust spoiler
Area adjusts the wind field in wind-tunnel.Traditionally, spoiler is mounted by means of bolts on wedge, to adjust out the wind needed
, it needs experimenter frequently to pass in and out wind tunnel laboratory, and constantly change position and the flow-disturbing plate suqare of spoiler manually, adjusts
Process is cumbersome, and required time is very long.
Summary of the invention
The present invention provides a kind of flexible device to adjust wind field in wind-tunnel that unit can be adjusted by wind field.
Technical solution is as follows:
A kind of flexible disturbing flow device of wind tunnel test, key are: including substrate and the wind field adjusting unit of keeping out the wind, the gear
Wind substrate is vertically arranged, and the same side of the substrate that keeps out the wind is equipped with multiple wind fields and adjusts unit, and the wind field adjusts unit
Vertical distribution；
It includes electric machine assembly that the wind field, which adjusts unit, the electric machine assembly be fixed on it is described keep out the wind on substrate, in the gear
Two pieces of expansion plates are installed on wind substrate, the expansion plate and the electric machine assembly are located at the same side of the substrate that keeps out the wind,
Two pieces of expansion plates are located at electric machine assembly two sides, the expansion plate and the substrate-parallel of keeping out the wind, and the expansion plate is sliding
It is dynamic to be assemblied in described keep out the wind on substrate；
The output shaft of the electric machine assembly is connected with drive shaft, and the drive shaft is horizontally disposed, which stretches with described
Plate is parallel, two pieces of expansion plates be respectively positioned on it is described keep out the wind between substrate and the drive shaft, on two pieces of expansion plates point
It is not fixed with drive seat, screw thread is threaded through in the drive seat of two pieces of expansion plates respectively at the both ends of the drive shaft, the drive
It is dynamic to seat against the nearly electric machine assembly.
Taking the remarkable result of above technical scheme is: adjusting stretching for unit by adjusting multiple wind fields on the substrate that keeps out the wind
Contracting changes to achieve the purpose that adjust wind field.
The top edge that the expansion plate is corresponded on the substrate that keeps out the wind is equipped with upper limit item, right on the substrate that keeps out the wind
The lower edge of the expansion plate is answered to be equipped with lower limit item, the upper limit item and lower limit item are horizontally disposed, the upper limit
Expansion plate sliding slot is formed between item and lower limit item, the expansion plate sliding is transferred in the expansion plate sliding slot, the upper limit
It is respectively equipped on position item and lower limit item and limits the choke that the expansion plate is fallen.
The electric machine assembly includes shell and the revolving hollow spindle that exports outward from the shell, and the shell is fixed at
The side of the substrate that keeps out the wind, the both ends of the revolving hollow spindle are stretched out from the shell respectively, and the revolving hollow spindle is horizontal
It is arranged, the drive shaft, the middle part of the drive shaft and the revolving hollow spindle interference is coaxially equipped in the revolving hollow spindle
Cooperation, the both ends of the drive shaft are respectively equipped with screw thread, and the thread rotary orientation at the drive shaft both ends is opposite.
The electric machine assembly further includes motor body and driving gear set；
The motor body and the driving gear set are respectively positioned in the shell, and the revolving hollow spindle passes through the shell
Body, the revolving hollow spindle are mounted in the shell by bearing, the vertical motor body of the revolving hollow spindle it is defeated
Shaft；
The driving gear set includes first gear and the 5th gear, and the 5th gear is solidly set on the revolving hollow spindle
On outer wall, the first gear is solidly set on the output shaft of the motor body, and the 5th gear is located in the shell, institute
It states to be driven between first gear and the 5th gear and be cooperatively connected.
The driving gear set further includes second gear, worm screw, worm gear, third gear and the 4th gear；
First bearing seat and second bearing seat are equipped in the shell, the both ends of the worm screw are mounted on by bearing respectively
In the first bearing seat and the second bearing seat, the worm screw is parallel with the output shaft of the motor body, and described second
Gear is solidly set on the worm screw, and the first gear is engaged with the second gear, and worm gear shaft and tooth are equipped in the shell
Wheel shaft is installed with the worm gear on the worm gear shaft, and the worm gear is engaged with the worm screw, and institute is also installed on the worm gear shaft
Third gear is stated, the worm gear is rotated coaxially with the third gear, and the 4th gear is installed on the gear shaft, described
Third gear is engaged with the 4th gear, and the 4th gear is engaged with the 5th gear.
It is equipped with hollow shaft on the housing to perforate, the revolving hollow spindle is arranged in hollow shaft perforation, the rotation
Turn hollow shaft equipped with the first conical bearing and the second conical bearing, first conical bearing and second conical bearing are equal
Be solidly set on the revolving hollow spindle outer wall, the outer ring of the outer ring of first conical bearing and second conical bearing respectively with
The inner wall of the hollow shaft perforation pushes against；
5th gear is placed on the sky of the rotation between first conical bearing and second conical bearing admittedly
In mandrel.
The shell includes upper housing and lower case；
The upper housing is mutually fastened with the lower case, and the first bearing seat and the second bearing seat are set on described
On upper housing, the worm gear shaft is parallel with the gear shaft, and first conical bearing is installed on the hollow shaft of the upper housing
In perforation, second conical bearing is installed in the hollow shaft perforation of the lower case.
The fuselage of the motor body is fixed in the lower case.
The utility model has the advantages that this programme is power by the electric machine assembly that control is kept out the wind on substrate, pushed away by the rotation of screw rod
It is dynamic to drive expansion plate flexible, change different height and position wind field adjusts the particular state of unit, to reach adjustment wind field
Purpose, this process is convenient, and required time is short.
Detailed description of the invention
Fig. 1 is the flexible disturbing flow device structural schematic diagram of wind tunnel test；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the structural schematic diagram of electric machine assembly 4；
Fig. 4 is the A-A cross-sectional view of Fig. 3；
Fig. 5 is the B-B cross-sectional view of Fig. 3；
Fig. 6 is the left view of Fig. 3；
Fig. 7 is the C-C cross-sectional view of Fig. 6；
Fig. 8 is the D-D cross-sectional view of Fig. 6.
Specific embodiment
Below with reference to embodiment and attached drawing, the invention will be further described.
As shown in Fig. 1 to Fig. 8, a kind of flexible disturbing flow device of wind tunnel test, including the substrate 1 that keeps out the wind, wind field adjusting unit 2,
Expansion plate 3, electric machine assembly 4, shell 7, revolving hollow spindle 4a, screw rod 15, erection support 14, first sliding groove 16, second sliding slot
17, motor body 5, driving gear set 6, first gear 6a, the 5th gear 6g, second gear 6b, worm screw 6c, worm gear 6d, third
Gear 6e, the 4th gear 6f, first bearing seat 8, second bearing seat 9, worm gear shaft 10, gear shaft 11, the first conical bearing 12,
Two conical bearings 13, upper housing 7a, lower case 7b, in which:
The substrate 1 that keeps out the wind is vertically arranged, and the same side of the substrate 1 that keeps out the wind is equipped with multiple wind fields and adjusts unit 2,
The wind field adjusts unit 2 and is vertically distributed；
It includes electric machine assembly 4 that the wind field, which adjusts unit 2, the electric machine assembly 4 be fixed on it is described keep out the wind on substrate 1, in institute
It states and two pieces of expansion plates 3 is installed on the substrate 1 that keeps out the wind, the expansion plate 3 is located at the substrate 1 that keeps out the wind with the electric machine assembly 4
Same side, two pieces of expansion plates 3 are located at 4 two sides of electric machine assembly, and the expansion plate 3 is parallel with the substrate 1 that keeps out the wind,
The expansion plate 3 is slidedly assemblied in described keep out the wind on substrate 1；
The output shaft of the electric machine assembly 4 is connected with drive shaft 15, and the drive shaft 15 is horizontally disposed, the drive shaft 15 and institute
It is parallel to state expansion plate 3, two pieces of expansion plates 3 be respectively positioned on it is described keep out the wind between substrate 1 and the drive shaft 15, described in two pieces
Drive seat 14 is respectively fixed on expansion plate 3, screw thread is threaded through two pieces of expansion plates 3 respectively at the both ends of the drive shaft 15
In drive seat 14, the drive seat 14 is close to the electric machine assembly 4.
It is specific:
The top edge that the expansion plate 3 is corresponded on the substrate 1 that keeps out the wind is equipped with upper limit item 16, in the substrate that keeps out the wind
The lower edge that the expansion plate 3 is corresponded on 1 is equipped with lower limit item 17, and the upper limit item 16 and the equal level of lower limit item 17 are set
It sets, forms expansion plate sliding slot between the upper limit item 16 and lower limit item 17, the sliding of expansion plate 3 is transferred on described flexible
In plate sliding slot, it is respectively equipped on the upper limit item 16 and lower limit item 17 and limits the choke that the expansion plate 3 is fallen.
The electric machine assembly 4 includes shell 7 and the revolving hollow spindle 4a exported outward from the shell 7, and the shell 7 is fixed
The side of the substrate 1 that keeps out the wind is set, and the both ends of the revolving hollow spindle 4a are stretched out from the shell 7 respectively, the rotation
Hollow shaft 4a is horizontally disposed, is coaxially equipped with the drive shaft 15 in the revolving hollow spindle 4a, the middle part of the drive shaft 15 with
The revolving hollow spindle 4a interference fit, the both ends of the drive shaft 15 are respectively equipped with screw thread, the screw thread rotation at 15 both ends of drive shaft
To opposite.
The electric machine assembly 4 further includes motor body 5 and driving gear set 6；
The motor body 5 and the driving gear set 6 are respectively positioned in the shell 7, and the revolving hollow spindle 4a is passed through
The shell 7, the revolving hollow spindle 4a are mounted in the shell 7 by bearing, and the revolving hollow spindle 4a is vertically described
The output shaft of motor body 5；
The driving gear set 6 includes first gear 6a and the 5th gear 6g, and the 5th gear 6e is solidly set on the rotation
Turning on hollow shaft 4a outer wall, the first gear 6a is solidly set on the output shaft of the motor body 5, and described 5th gear 6g
In in the shell 7, it is driven and is cooperatively connected between the first gear 6a and the 5th gear 6g.
The driving gear set 6 further includes second gear 6b, worm screw 6c, worm gear 6d, third gear 6e and the 4th gear 6f；
It is equipped with first bearing seat 8 and second bearing seat 9 in the shell 7, the both ends of the worm screw 6c pass through bearing respectively
It is mounted in the first bearing seat 8 and the second bearing seat 9, the output shaft of the worm screw 6c and the motor body 5 is flat
Row, the second gear 6b are solidly set on the worm screw 6c, and the first gear 6a is engaged with the second gear 6b, the shell
It is equipped with worm gear shaft 10 and gear shaft 11 in body 7, the worm gear 6d, the worm gear 6d and the snail are installed on the worm gear shaft 10
Bar 6c is engaged, and it is coaxial to be also installed with the third gear 6e, the worm gear 6d and the third gear 6e on the worm gear shaft 10
It rotating, is installed with the 4th gear 6f on the gear shaft 11, the third gear 6e is engaged with the 4th gear 6f,
The 4th gear 6f is engaged with the 5th gear 6g.
It is equipped with hollow shaft on the shell 7 to perforate, the revolving hollow spindle 4a is arranged in hollow shaft perforation, described
Revolving hollow spindle 4a is equipped with the first conical bearing 12 and the second conical bearing 13, first conical bearing 12 and described second
Conical bearing 13 is solidly set on the revolving hollow spindle 4a outer wall, the outer ring of first conical bearing 12 and second circular cone
Inner wall of the outer ring of bearing 13 respectively with hollow shaft perforation pushes against；
The 5th gear 6g is placed on described between first conical bearing 12 and second conical bearing 13 admittedly
On revolving hollow spindle 4a.
The shell 7 includes upper housing 7a and lower case 7b；
The upper housing 7a is mutually fastened with the lower case 7b, and the first bearing seat 8 and the second bearing seat 9 are set
In on the upper housing 7a, the worm gear shaft 10 is parallel with the gear shaft 11, and first conical bearing 12 is installed on described
In the hollow shaft perforation of upper housing 7a, second conical bearing 13 is installed in the hollow shaft perforation of the lower case 7b.
The fuselage of the motor body 5 is fixed on the lower case 7b.
Finally, it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the inspiration of the present invention, without prejudice to the purpose of the present invention and the claims, can make multiple similar tables
Show, such transformation is fallen within the scope of protection of the present invention.
Claims (8)
- The disturbing flow device 1. a kind of wind tunnel test is stretched, it is characterised in that: adjust unit (2) including the substrate that keeps out the wind (1) and wind field, institute State that the substrate that keeps out the wind (1) is vertically arranged, the same side of the substrate that keeps out the wind (1) is equipped with multiple wind fields and adjusts unit (2), described Wind field adjusts unit (2) and is vertically distributed；It includes electric machine assembly (4) that the wind field, which adjusts unit (2), the electric machine assembly (4) be fixed on it is described keep out the wind on substrate (1), Two pieces of expansion plates (3) are installed on the substrate that keeps out the wind (1), the expansion plate (3) and the electric machine assembly (4) are located at described It keeps out the wind the same side of substrate (1), two pieces of expansion plates (3) are located at electric machine assembly (4) two sides, the expansion plate (3) Parallel with the substrate that keeps out the wind (1), the expansion plate (3) is slidedly assemblied in described keep out the wind on substrate (1)；The output shaft of the electric machine assembly (4) is connected with drive shaft (15), and the drive shaft (15) is horizontally disposed, the drive shaft (15) It is parallel with the expansion plate (3), two pieces of expansion plates (3) be respectively positioned on it is described keep out the wind substrate (1) and the drive shaft (15) it Between, it is respectively fixed with drive seat (14) on two pieces of expansion plates (3), screw thread is worn respectively at the both ends of the drive shaft (15) In the drive seat (14) of two pieces of expansion plates (3), the drive seat (14) is close to the electric machine assembly (4).
- The disturbing flow device 2. wind tunnel test according to claim 1 is stretched, it is characterised in that: on the substrate that keeps out the wind (1) The top edge of the corresponding expansion plate (3) is equipped with upper limit item (16), corresponds to the expansion plate on the substrate that keeps out the wind (1) (3) lower edge is equipped with lower limit item (17), and the upper limit item (16) and lower limit item (17) are horizontally disposed, the upper limit Expansion plate sliding slot is formed between position item (16) and lower limit item (17), it is sliding that expansion plate (3) sliding is transferred on the expansion plate In slot, it is respectively equipped on the upper limit item (16) and lower limit item (17) and limits the choke that the expansion plate (3) falls.
- The disturbing flow device 3. wind tunnel test according to claim 2 is stretched, it is characterised in that: the electric machine assembly (4) includes Shell (7) and the revolving hollow spindle (4a) exported outward from the shell (7), the shell (7) are fixed at the base that keeps out the wind The side of plate (1), the both ends of the revolving hollow spindle (4a) are stretched out from the shell (7) respectively, the revolving hollow spindle (4a) It is horizontally disposed, the drive shaft (15) are coaxially equipped in the revolving hollow spindle (4a), the middle part of the drive shaft (15) and institute Revolving hollow spindle (4a) interference fit is stated, the both ends of the drive shaft (15) are respectively equipped with screw thread, the spiral shell at drive shaft (15) both ends Line is oppositely oriented.
- The disturbing flow device 4. wind tunnel test according to claim 2 is stretched, it is characterised in that: the electric machine assembly (4) is also wrapped Include motor body (5) and driving gear set (6)；The motor body (5) and the driving gear set (6) are respectively positioned in the shell (7), the revolving hollow spindle (4a) Across the shell (7), the revolving hollow spindle (4a) is mounted in the shell (7) by bearing, the revolving hollow spindle The output shaft of (4a) vertical described motor body (5)；The driving gear set (6) includes first gear (6a) and the 5th gear (6g), and the 5th gear (6e) is solidly set on institute It states on revolving hollow spindle (4a) outer wall, the first gear (6a) is solidly set on the output shaft of the motor body (5), and described Five gears (6g) are located in the shell (7), and transmission cooperation connects between the first gear (6a) and the 5th gear (6g) It connects.
- The disturbing flow device 5. wind tunnel test according to claim 4 is stretched, it is characterised in that: the driving gear set (6) is also Including second gear (6b), worm screw (6c), worm gear (6d), third gear (6e) and the 4th gear (6f)；First bearing seat (8) and second bearing seat (9) are equipped in the shell (7), the both ends of the worm screw (6c) pass through respectively Bearing is mounted in the first bearing seat (8) and the second bearing seat (9), the worm screw (6c) and the motor body (5) output shaft is parallel, and the second gear (6b) is solidly set on the worm screw (6c), the first gear (6a) and described the Two gears (6b) engagement, the shell (7) is interior to be equipped with worm gear shaft (10) and gear shaft (11), is installed on the worm gear shaft (10) The worm gear (6d), the worm gear (6d) are engaged with the worm screw (6c), are also installed with the third on the worm gear shaft (10) Gear (6e), the worm gear (6d) rotate coaxially with the third gear (6e), and described is installed on the gear shaft (11) Four gears (6f), the third gear (6e) are engaged with the 4th gear (6f), the 4th gear (6f) and the described 5th Gear (6g) engagement.
- The disturbing flow device 6. wind tunnel test according to claim 5 is stretched, it is characterised in that: be equipped on the shell (7) Hollow shaft perforation, the revolving hollow spindle (4a) are arranged in hollow shaft perforation, and the revolving hollow spindle (4a) is equipped with the One conical bearing (12) and the second conical bearing (13), first conical bearing (12) and second conical bearing (13) are equal It is solidly set on the revolving hollow spindle (4a) outer wall, the outer ring of first conical bearing (12) and second conical bearing (13) Outer ring respectively with the hollow shaft perforation inner wall push against；5th gear (6g) is placed on the institute between first conical bearing (12) and second conical bearing (13) admittedly It states on revolving hollow spindle (4a).
- The disturbing flow device 7. wind tunnel test according to claim 6 is stretched, it is characterised in that: the shell (7) includes upper casing Body (7a) and lower case (7b)；The upper housing (7a) and the lower case (7b) are mutually fastened, the first bearing seat (8) and the second bearing seat (9) it is set on the upper housing (7a), the worm gear shaft (10) is parallel with the gear shaft (11), first conical bearing (12) it is installed in the hollow shaft perforation of the upper housing (7a), second conical bearing (13) is installed on the lower case In the hollow shaft perforation of (7b).
- The disturbing flow device 8. wind tunnel test according to claim 7 is stretched, it is characterised in that: the machine of the motor body (5) Body is fixed on the lower case (7b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910262845.0A CN109827739B (en) | 2019-04-02 | 2019-04-02 | Telescopic turbulence device for wind tunnel test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910262845.0A CN109827739B (en) | 2019-04-02 | 2019-04-02 | Telescopic turbulence device for wind tunnel test |
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| CN109827739A true CN109827739A (en) | 2019-05-31 |
| CN109827739B CN109827739B (en) | 2021-01-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111929026A (en) * | 2020-09-29 | 2020-11-13 | 中国空气动力研究与发展中心低速空气动力研究所 | Low-frequency pressure pulsation suppression method for wind tunnel 3/4 opening test section |
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| CN109827739B (en) | 2021-01-29 |
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