CN109946038B - Wind tunnel fixed block spray pipe device with foldable and unfolded molded surface - Google Patents
Wind tunnel fixed block spray pipe device with foldable and unfolded molded surface Download PDFInfo
- Publication number
- CN109946038B CN109946038B CN201910365648.1A CN201910365648A CN109946038B CN 109946038 B CN109946038 B CN 109946038B CN 201910365648 A CN201910365648 A CN 201910365648A CN 109946038 B CN109946038 B CN 109946038B
- Authority
- CN
- China
- Prior art keywords
- spray pipe
- box body
- wind tunnel
- movable block
- fixed block
- 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.)
- Active
Links
- 239000007921 spray Substances 0.000 title claims abstract description 159
- 230000009467 reduction Effects 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000009193 crawling Effects 0.000 claims 3
- 238000013461 design Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract 2
- 241000282326 Felis catus Species 0.000 description 9
- 230000008859 change Effects 0.000 description 9
- 239000007787 solid Substances 0.000 description 7
- 239000000306 component Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a wind tunnel fixed block spray pipe device with a foldable and unfolded molded surface, which aims to solve the problem that in the process of modifying a high-speed wind tunnel to expand the highest working Mach number range of the high-speed wind tunnel, the fixed block spray pipe device with the lengthened spray pipe needs to be developed and is influenced by the fixed spatial position of the wind tunnel reserved for the spray pipe device, and a new spray pipe device is often incapable of being installed due to overlong spray pipes. The automatic spraying device comprises a box body, a spraying pipe assembly, a frame and a power driving assembly, wherein the box body is arranged on the frame, and the frame is arranged on the power driving assembly. Based on structural improvement, the novel spray pipe can be installed on a wind tunnel body structure in a limited space, an lengthened spray pipe molded surface meeting the pneumatic design requirement is formed, stable streamline contact of the novel spray pipe molded surface and other section structures of the wind tunnel is ensured, and the effective expansion of the highest working Mach number range of the wind tunnel is jointly realized.
Description
Technical Field
The invention relates to the field of high-speed wind tunnel pneumatic structures, in particular to a novel fixed block spray pipe device of a wind tunnel, and specifically relates to a wind tunnel fixed block spray pipe device with a foldable and expandable molded surface. Based on the improvement of the structure, the invention can realize the effective expansion of the highest working Mach number range of the high-speed wind tunnel and has better application prospect.
Background
High-speed wind tunnels are pneumatically designed from a number of sections, one important of which is the jet section, followed by the convergent section and then the test section. In the high-speed wind tunnel, the structure corresponding to the nozzle section is a nozzle device, and the high-speed wind tunnel is mainly provided with a solid block nozzle device.
The fixed block spray pipe device mainly comprises a spray pipe and other components, and is characterized in that the spray pipe affects a wind tunnel flow field through two characteristics of the throat area and the profile curve appearance of the spray pipe, so that a target working flow field under the design Mach number of the wind tunnel is built. However, since the nozzle of the fixed block nozzle device is fixed, the throat area and the profile curve shape of the fixed block nozzle device are also fixed, therefore, one set of fixed block nozzle device can only help the wind tunnel to establish a working Mach number flow field within a certain range, and the high-speed wind tunnel is generally designed and processed with a plurality of sets of fixed block nozzle devices with different characteristics so as to ensure that the wind tunnel normally operates within the designed working Mach number range.
In recent years, with the rapid development of the aerospace industry, certain high-speed wind tunnels matched with the industrial system are required to be upgraded and reformed in a matched mode so as to expand the highest working Mach number range of the high-speed wind tunnels, and one economic and effective method is to develop a new solid block spray pipe device. However, since the wind tunnel is already constructed and formed, the space position of the nozzle segment is already fixed, the design space margin reserved for the nozzle device is insufficient, and the nozzle device is designed according to the traditional method, so that the full expansion of the highest working Mach number range of the wind tunnel is difficult to realize. The reason is that: the nozzle device meeting the requirements needs to have a profile with gentle curve change besides a small throat area of the nozzle, and the nozzle device designed according to the traditional method can be realized by lengthening the nozzle, wherein the axial length of the nozzle is the length of the nozzle section and cannot be lengthened axially. Therefore, a pair of fixed block nozzle devices capable of fully expanding the maximum working Mach number range of the wind tunnel needs to be developed according to a new method. The solid block spray pipe device can face the following technical problems in the development process: the primary problem is to break through the traditional method and design a pair of lengthened spray pipes, so as to solve the problems of uneven and unusable working flow fields established by the wind tunnel caused by severe change of profile curves of the spray pipes designed under the traditional method; secondly, the axial length of the lengthened spray pipe is inevitably longer than the length of the spray pipe section of the wind tunnel and also longer than the length of the box body of the spray pipe device, and a pair of fixed block spray pipe devices with the lengthened spray pipe are installed under the condition of fixed space positions, so that the lengthened spray pipe becomes a new problem; the final problem is that even if the new spray pipe device is installed, the structure of the new spray pipe and other sections of the wind tunnel must be ensured to have stable streamline contact, so that the air flow interference caused by poor surface contact in the using process is avoided.
In summary, a new structure or device is urgently needed to solve the above-mentioned problems.
Disclosure of Invention
The invention of the present application aims to: aiming at the problems that in the process of modifying a high-speed wind tunnel to expand the highest working Mach number range, a nozzle lengthening fixed block nozzle device needs to be developed, and a new nozzle device cannot be installed due to overlong nozzles or is difficult to ensure stable streamline contact of the molded surface of the new nozzle and other section structures of the wind tunnel due to the influence of the fixed spatial position of the wind tunnel reserved for the nozzle device, the wind tunnel fixed block nozzle device with the foldable molded surface is provided. Based on the structural improvement of the fixed block spray pipe device, the novel spray pipe can be installed on the wind tunnel body structure in a limited space, an lengthened spray pipe molded surface meeting the pneumatic design requirement is formed, the novel spray pipe molded surface and other section structures of the wind tunnel are ensured to have stable streamline contact, and the effective expansion of the highest working Mach number range of the wind tunnel is jointly realized. The invention has ingenious conception, reasonable design, stronger adaptability and higher application value, and has extremely important significance for improving the high-speed wind tunnel.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the wind tunnel fixed block spray pipe device with the foldable and unfolded molded surface comprises a box body, a spray pipe assembly, a frame and a power driving assembly for providing power for the frame, wherein the box body is arranged on the frame, the frame is arranged on the power driving assembly, and the power driving assembly can drive the box body to move through the frame;
the spray pipe assemblies are symmetrically arranged on the upper side and the lower side of the box body;
the spray pipe assembly comprises a spray pipe fixing block, a spray pipe movable block matched with the spray pipe fixing block, a rotating shaft and a rotary driving assembly, wherein the spray pipe fixing block is arranged in the box body, the rotating shaft is connected with the box body and can rotate relative to the box body, the spray pipe movable block is connected with the box body through the rotating shaft, the spray pipe movable block can rotate relative to the side wall of the box body so as to fold and unfold the spray pipe assembly, and the rotary driving assembly is connected with the spray pipe movable block through the rotating shaft and can drive the spray pipe movable block to rotate relative to the box body.
The spray pipe fixing block is fixedly arranged in the box body.
The spray pipe movable block is smoothly connected with the spray pipe fixed block.
The rotary driving assembly comprises a reduction gearbox and a hand wheel, the reduction gearbox is meshed with the rotary shaft through gears, the hand wheel is connected with the reduction gearbox, and the hand wheel can drive the spray pipe movable block to rotate relative to the box body through the reduction gearbox and the rotary shaft in sequence.
The spray pipe movable block is provided with an alignment pin hole, and the spray pipe movable block can be connected with other sections of the wind tunnel through the alignment pin hole so as to ensure stable connection of the spray pipe movable block.
Still include one or more in unsettled platform, cat ladder, unsettled platform sets up on the box and unsettled platform can provide the support for the operating personnel stands, the cat ladder sets up on the box and the operating personnel can carry out the cat motion from top to bottom through the cat ladder relative box.
The box body is hollow cuboid, and openings are respectively formed in the front end and the rear end of the box body.
The box body is formed into a hollow cuboid opening structure by an upper wall surface, a left wall surface, a lower wall surface and a right wall surface.
The power driving assembly comprises a driving motor and a driving wheel, wherein the driving motor is connected with the driving wheel and can drive the driving wheel to rotate, and the driving wheel is connected with the frame and can drive the frame to move.
The driving wheel is one or more of a rail wheel or a Mecanum wheel.
In view of the foregoing, the present invention provides a wind tunnel fixed block nozzle device with a foldable and expandable profile. The device comprises a box body, a spray pipe assembly, a frame and a power driving assembly, wherein the box body is arranged on the frame, and the frame is arranged on the power driving assembly. In the invention, the power driving assembly drives the frame to move, and the frame provides support for the box body and drives the box body to move according to the requirement. Meanwhile, the spray pipe components are in a group, and the spray pipe components are symmetrically arranged on the upper side and the lower side of the box body.
In the invention, the spray pipe assembly comprises a spray pipe fixing block, a spray pipe movable block, a rotary shaft and a rotary driving assembly, wherein the spray pipe fixing block is arranged in the box body, the rotary shaft is connected with the box body, the spray pipe movable block is connected with the box body through the rotary shaft, and the rotary driving assembly is connected with the spray pipe movable block through the rotary shaft. In this structure, the rotation axis plays the effect of connection and power transmission, and rotary drive subassembly is then used for providing power for the rotation of spray tube movable block. When the spray pipe device works, the rotary driving assembly drives the rotary shaft to rotate, the rotary shaft drives the spray pipe movable block fixedly connected with the rotary shaft, and the spray pipe movable block can rotate relative to the side wall of the box body, so that the spray pipe assembly can be folded and unfolded (namely, the spray pipe movable block is unfolded outside the box body or folded into the box body, and the spray pipe device can operate without interference under the fixed condition).
In the invention, the rotary driving assembly comprises a reduction gearbox and a hand wheel, the reduction gearbox is meshed with the rotary shaft through a gear, and the hand wheel is connected with the reduction gearbox. In this structure, operating personnel rotates the hand wheel, and the hand wheel drives the reducing gear box and rotates to give the rotation axis with power transmission, and then realize the rotation of the relative box of spray tube movable block. In this structure, through mutually supporting between hand wheel, the reducing gear box, can provide stable, reliable power for the rotation axis, guarantee the accurate motion of spray tube movable block. Meanwhile, the movable block of the spray pipe is provided with an alignment pin hole; the jet pipe movable block can be connected with other sections of the wind tunnel through the alignment pin hole and the positioning pin matched with the alignment pin hole so as to ensure stable connection of the jet pipe movable block. In the structure, the spray pipe fixing block is smoothly connected with the spray pipe moving block, so that the streamline contact between the molded surface of the spray pipe and other section structures of the wind tunnel is ensured.
Furthermore, the wind tunnel fixed block spray pipe device also comprises a suspension platform and a cat ladder. Wherein, unsettled platform sets up on the box and is used for standing for the operation personnel and provides the support, and the cat ladder setting is on the box, and the operation personnel can reach unsettled platform through the cat ladder, carries out corresponding operation.
In the invention, the box body is in a hollow cuboid shape, and the front end and the rear end of the box body are respectively provided with an opening, namely, the box body has a hollow cuboid opening structure formed by an upper wall surface, a left wall surface, a lower wall surface and a right wall surface.
In the invention, the spray pipe fixing block and the spray pipe movable block form a single-side spray pipe assembly (namely, the spray pipe movable block and the spray pipe fixing block are two component parts of a single molded surface structure of the spray pipe), and the two single-side spray pipe assemblies are symmetrically arranged to form a spray pipe main body (namely, the two symmetrical molded surface structures form a full auxiliary spray pipe).
In the installation process of the nozzle device replacement operation, the nozzle movable block is in a folded state, and the nozzle device is pushed into the installation position of the track platform through the power driving assembly, so that the nozzle device and other sections of the wind tunnel are connected through an external structure. Then, the connection work of the nozzle movable block is carried out, and the nozzle movable block needs to be unfolded to the working position. The operator rotates the hand wheel, applies torque and transmits the torque to the rotating shaft through the reduction gearbox, and the spray pipe movable block is driven and unfolded outside the gearbox. When the movable block of the spray pipe rotates to reach a preset working position, the pin is driven into the wind tunnel contraction section structure and the alignment pin hole, so that the accurate positioning and stable connection of the movable block of the spray pipe are realized (the aerodynamic damage generated when gravity and wind blow from the wind tunnel are avoided).
In the removal of the nozzle device for the replacement operation, the nozzle movable block in the working position needs to be folded into the box body. The operator firstly pulls out the pin in the alignment pin hole, then applies operation to the hand wheel, reversely rotates the hand wheel, applies torque and transmits the torque to the rotating shaft through the reduction gearbox, and the spray pipe movable block is driven to fold towards the inside of the gearbox; firstly, folding the lower spray pipe movable block to a limit position, and then folding the upper spray pipe movable block to a natural sagging position so as to avoid the damage of moment generated by gravity to the rotating shaft of the upper spray pipe movable block; then, disconnecting the external structural connection of the nozzle device and other sections of the tunnel; finally, the nozzle arrangement is pushed out of the mounted position of the rail platform by the power drive assembly.
In the invention, the spray pipe movable block has folding and unfolding functions; when the spray pipe movable block is folded into the box body, the spray pipe device can operate without interference under the condition of a fixed space; after the jet pipe device is connected with other sections of the wind tunnel, the jet pipe movable block can be unfolded and is firmly connected with the pin through the alignment pin hole, so that the replacement operation of the jet pipe device under the condition of limited space volume is realized.
In the invention, the power driving assembly comprises a driving motor and a driving wheel, wherein the driving motor is connected with the driving wheel and can drive the driving wheel to rotate, and the driving wheel is connected with the frame and can drive the frame to move. In this structure, power drive subassembly is used for providing the walking function for the spray tube device to have the function of rotation + -90, be convenient for whole spray tube device change the direction of operation in the track of horizontal and vertical distribution, realize the change of spray tube device.
In summary, the invention has the following advantages due to the adoption of the scheme:
(1) The wind tunnel fixed block spray pipe device with the foldable and unfolded molded surface is clear in design, convenient to operate, firm in structure and long in service life;
(2) According to the wind tunnel fixed block spray pipe device with the foldable and unfolded molded surface, the design of the spray pipe movable block prolongs the length of the whole auxiliary spray pipe, ensures that the spray pipe has a profile curve shape with gentle change on pneumatic design, solves the problem that the flow field is uneven and unusable due to severe change of the molded surface curve of the spray pipe originally faced, and the novel spray pipe device can help the wind tunnel to establish a uniformly usable flow field;
(3) The movable nozzle block in the wind tunnel fixed block nozzle device has the folding and unfolding functions, the folding functions ensure that the fixed block nozzle device can form a conventional external size, the interference-free installation or removal operation is realized under the fixed space condition, and the unfolding functions ensure that when the movable nozzle block is unfolded to a working position, a new nozzle molded surface meeting the pneumatic design requirement can be formed, so that the expansion of the highest working Mach number range of the wind tunnel is facilitated;
(4) The movable nozzle block in the wind tunnel fixed block nozzle device has a positioning function, and can realize accurate positioning and safe connection through the pin and the alignment pin hole, so that the damage of gravity and aerodynamic force generated when wind blows from a wind tunnel to the movable nozzle block is avoided;
(5) In the wind tunnel fixed block spray pipe device, the spray pipe movable block and the spray pipe fixed block are tightly attached to other section structures of the wind tunnel, the integral secondary spray pipe profile is smooth formed by matching with other section structures of the wind tunnel, the profile transition between the spray pipe movable block and the spray pipe fixed block is smooth, the interference to the flowing air flow is small, and the establishment of a qualified flow field of the wind tunnel is facilitated;
(6) The wind tunnel fixed block spray pipe device with the foldable and expandable molded surface has small modification to the wind tunnel, can obviously provide the performance of the existing wind tunnel, reduces the corresponding wind tunnel modification cost and has extremely high application value.
Drawings
FIG. 1 is a schematic diagram of the aerodynamic profile of the relevant section of a high speed wind tunnel.
Fig. 2 is a partial schematic view of a raw nozzle arrangement.
Fig. 3 is a partial schematic view of a nozzle assembly according to the present invention.
FIG. 4 is a schematic view of the overall structure of the nozzle assembly of the present invention.
The marks in the figure: 1. the box body, 2, spray tube fixed block, 3, rotation axis, 4, spray tube movable block, 5, counterpoint pinhole, 6, reducing gear box, 7, hand wheel, 8, unsettled platform, 9, cat ladder, 10, frame, 11, power drive assembly.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
A schematic diagram of the aerodynamic profile of the nozzle segments and the like of the high-speed wind tunnel is shown in FIG. 1. In this figure, the spatial position of the sections of the wind tunnel has been fixed, and the position of the nozzle section corresponds to the mounting position of the solid block nozzle device. A partial schematic view of the original solid block nozzle device is shown in figure 2. The device is an original solid block spray pipe device structure designed in the construction period of the high-speed wind tunnel, the solid block spray pipe and other section structures of the wind tunnel are in original streamline profile curve contact, the profile curve change is gentle, and a qualified working flow field in a designed Mach number range can be established for the wind tunnel. In the installation mode, the original fixed block spray pipe device can directly enter the position of the spray pipe section and be quickly connected with other section structures of the wind tunnel, and can also be directly disconnected with other section structures to move out of the position of the spray pipe section.
The partial schematic view and the overall structure schematic view of the fixed block spray pipe device of the invention are respectively shown in fig. 3 and 4. The wind tunnel fixed block spray pipe device comprises a box body, a spray pipe assembly, a frame, a power driving assembly, a suspension platform and a cat ladder, wherein a spray pipe fixed block is matched with a spray pipe movable block and is in smooth connection with the spray pipe movable block. As can be seen from fig. 3, the core component of the present invention is a movable nozzle block, which is connected to the structure of the case via a rotating shaft and can be unfolded out of the case or folded into the case. The fixing block can be unfolded and fixed on the contraction section structure to form a new smooth pneumatic profile. The design of the jet pipe movable block prolongs the length of the whole auxiliary jet pipe, so that the profile curve of the new jet pipe becomes gentle, and the problems of uneven and unusable flow field caused by severe change of the profile curve of the jet pipe originally faced in the development process of the jet pipe device are solved. FIG. 3 also shows that the throat area of the nozzle is reduced compared with FIG. 2, the axial position of the throat is also moved (namely, the bottommost end of the upper nozzle fixing block is closer to the central axis than in FIG. 2, and the topmost end of the lower nozzle fixing block is closer to the central axis than in FIG. 2), so that the length of the nozzle behind the throat is increased, and the uniform expansion of the airflow behind the throat is facilitated.
The working principle of the fixed block spray pipe device of the invention is as follows: the jet pipe is an important part for ensuring that the wind tunnel test section obtains uniform airflow with designed Mach number, and has the functions of enabling the airflow to be isentropically accelerated and expanded, and after the airflow is uniformly accelerated from low subsonic speed to sonic speed by the contraction section, the airflow starts to accelerate and expand from the throat of the jet pipe until the outlet of the jet pipe reaches the required Mach number. The area ratio ensures the mach number required to be achieved, while the curved shape of the nozzle ensures the uniformity of the flow. Therefore, in the process of expanding the highest working Mach number range of the constructed and formed high-speed wind tunnel, a pair of spray pipe devices with small throat area and smooth profile curve change are required to be designed, the newly designed spray pipe is axially lengthened, the smooth profile curve and the accurate throat area are obtained, and the purpose of expanding the highest working Mach number range of the high-speed wind tunnel is realized from the aerodynamics.
The invention relates to a fixed block spray pipe device, which is mainly characterized in that a spray pipe movable block is designed. The design of the movable block not only meets the design requirement that the spray pipe molded surface must be prolonged, but also successfully solves the problem of how to install the lengthened spray pipe, so that the development of a new fixed block spray pipe device is successfully realized under the condition of fixed space position. In addition, when the designed movable block of the spray pipe is unfolded to the working position, the movable block is stably fixed on the spray pipe section structure through the pin, so that streamline contact can be formed between the movable block and the contracted section structure, a new smooth profile curve can be formed, and the high-speed wind tunnel can be helped to successfully establish a target working flow field. The device can also fold the movable block of the spray pipe into the box body to form the same external dimension as the original fixed block spray pipe device, thereby smoothly realizing the installation or removal movement.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The wind tunnel fixed block spray pipe device with the foldable and unfolded molded surface is characterized by comprising a box body, a spray pipe assembly, a frame and a power driving assembly for providing power for the frame, wherein the box body is arranged on the frame, the frame is arranged on the power driving assembly, and the power driving assembly can drive the box body to move through the frame;
the spray pipe assemblies are symmetrically arranged on the upper side and the lower side of the box body;
the spray pipe assembly comprises a spray pipe fixing block, a spray pipe movable block matched with the spray pipe fixing block, a rotating shaft and a rotary driving assembly, wherein the spray pipe fixing block is arranged in the box body, the rotating shaft is connected with the box body and can rotate relative to the box body, the spray pipe movable block is connected with the box body through the rotating shaft, the spray pipe movable block can rotate relative to the side wall of the box body so as to realize folding and unfolding of the spray pipe assembly, and the rotary driving assembly is connected with the spray pipe movable block through the rotating shaft and can drive the spray pipe movable block to rotate relative to the box body;
the spray pipe movable block is smoothly connected with the spray pipe fixed block;
the spray pipe movable block is provided with an alignment pin hole, and the spray pipe movable block can be connected with other sections of the wind tunnel through the alignment pin hole so as to ensure stable connection of the spray pipe movable block.
2. The wind tunnel fixed block spray pipe device according to claim 1, wherein the rotary driving assembly comprises a reduction gearbox and a hand wheel, the reduction gearbox is meshed with the rotary shaft through a gear, the hand wheel is connected with the reduction gearbox, and the hand wheel can drive the spray pipe movable block to rotate relative to the box body through the reduction gearbox and the rotary shaft in sequence.
3. The wind tunnel fixed block nozzle device of claim 1, further comprising one or more of a suspended platform and a crawling ladder, wherein the suspended platform is arranged on the box body and can provide support for an operator to stand, and the crawling ladder is arranged on the box body and the operator can climb up and down relative to the box body through the crawling ladder.
4. A wind tunnel fixed block spray pipe device according to any one of claims 1 to 3, wherein the box body is hollow cuboid, and openings are respectively arranged at the front end and the rear end of the box body.
5. The wind tunnel fixed block nozzle device according to claim 4, wherein the box body is a hollow cuboid opening structure formed by an upper wall surface, a left wall surface, a lower wall surface and a right wall surface.
6. The wind tunnel fixed block spray pipe device according to any one of claims 1-3 and 5, wherein the power driving assembly comprises a driving motor and a driving wheel, the driving motor is connected with the driving wheel and can drive the driving wheel to rotate, and the driving wheel is connected with the frame and can drive the frame to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910365648.1A CN109946038B (en) | 2019-05-02 | 2019-05-02 | Wind tunnel fixed block spray pipe device with foldable and unfolded molded surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910365648.1A CN109946038B (en) | 2019-05-02 | 2019-05-02 | Wind tunnel fixed block spray pipe device with foldable and unfolded molded surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109946038A CN109946038A (en) | 2019-06-28 |
| CN109946038B true CN109946038B (en) | 2024-01-30 |
Family
ID=67016937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910365648.1A Active CN109946038B (en) | 2019-05-02 | 2019-05-02 | Wind tunnel fixed block spray pipe device with foldable and unfolded molded surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109946038B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029500A (en) * | 2021-03-26 | 2021-06-25 | 中国空气动力研究与发展中心超高速空气动力研究所 | Assembly process of main box body of large-scale test section of hypersonic wind tunnel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06300660A (en) * | 1993-04-14 | 1994-10-28 | Mitsubishi Heavy Ind Ltd | Wind tunnel |
| JP2003014576A (en) * | 2001-06-28 | 2003-01-15 | Mitsubishi Heavy Ind Ltd | Supersonic variable nozzle system |
| CN104655392A (en) * | 2015-02-13 | 2015-05-27 | 北京瑞赛长城航空测控技术有限公司 | Synchronous control system and method for all flexible plate nozzle of wind tunnel |
| CN104931227A (en) * | 2015-06-02 | 2015-09-23 | 中国科学院力学研究所 | Variable Mach number motion control device for hypersonic-speed variable Mach number wind tunnel nozzle |
| CN105181290A (en) * | 2015-10-13 | 2015-12-23 | 北京航天长征飞行器研究所 | High-temperature jet pipe used for combustion gas flow wind tunnel |
| CN105738068A (en) * | 2016-01-28 | 2016-07-06 | 南京航空航天大学 | Device used for reducing profile rotation continuously adjustable wind tunnel nozzle adjusting actuating force |
| CN108519209A (en) * | 2018-03-22 | 2018-09-11 | 中国航天空气动力技术研究院 | A kind of large tunnel nozzle test section integrated apparatus |
| CN209559462U (en) * | 2019-05-02 | 2019-10-29 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of foldable wind-tunnel with expansion in type face consolidates block Effuser device |
-
2019
- 2019-05-02 CN CN201910365648.1A patent/CN109946038B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06300660A (en) * | 1993-04-14 | 1994-10-28 | Mitsubishi Heavy Ind Ltd | Wind tunnel |
| JP2003014576A (en) * | 2001-06-28 | 2003-01-15 | Mitsubishi Heavy Ind Ltd | Supersonic variable nozzle system |
| CN104655392A (en) * | 2015-02-13 | 2015-05-27 | 北京瑞赛长城航空测控技术有限公司 | Synchronous control system and method for all flexible plate nozzle of wind tunnel |
| CN104931227A (en) * | 2015-06-02 | 2015-09-23 | 中国科学院力学研究所 | Variable Mach number motion control device for hypersonic-speed variable Mach number wind tunnel nozzle |
| CN105181290A (en) * | 2015-10-13 | 2015-12-23 | 北京航天长征飞行器研究所 | High-temperature jet pipe used for combustion gas flow wind tunnel |
| CN105738068A (en) * | 2016-01-28 | 2016-07-06 | 南京航空航天大学 | Device used for reducing profile rotation continuously adjustable wind tunnel nozzle adjusting actuating force |
| CN108519209A (en) * | 2018-03-22 | 2018-09-11 | 中国航天空气动力技术研究院 | A kind of large tunnel nozzle test section integrated apparatus |
| CN209559462U (en) * | 2019-05-02 | 2019-10-29 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of foldable wind-tunnel with expansion in type face consolidates block Effuser device |
Non-Patent Citations (1)
| Title |
|---|
| 气体展开裙喷管风洞展开和性能试验;李淦卿;推进技术(第03期);28-34 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109946038A (en) | 2019-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109946038B (en) | Wind tunnel fixed block spray pipe device with foldable and unfolded molded surface | |
| CN108519209B (en) | Large-scale wind tunnel spray pipe test section integrated device | |
| CN211040144U (en) | Mining machinery operation supporting platform capable of automatically adjusting level | |
| CN209559462U (en) | A kind of foldable wind-tunnel with expansion in type face consolidates block Effuser device | |
| CN213705386U (en) | Blowing equipment for unmanned car washer | |
| CN113600431B (en) | Compact type polishing and coating head swinging device with long-span steel wire rope traction rear-mounted device | |
| CN212003731U (en) | Tower fan with lifting air outlet | |
| CN113517850A (en) | Photovoltaic module tracking device | |
| CN111628268B (en) | Antenna winding and unwinding devices | |
| CN204240543U (en) | Air-cooled ducted air conditioner tuyere device and air-cooled ducted air conditioner | |
| CN208522875U (en) | The hidden witness of court's trial dynamic testifies host | |
| CN101363806B (en) | Tyre expanding mechanism for X-ray tyre detecting machine | |
| CN215205362U (en) | Foldable wing micro unmanned aerial vehicle with optical and radar detection | |
| CN206679257U (en) | Collapsible unmanned plane | |
| CN201273883Y (en) | Tyre expansion mechanism for X-ray tyre detection machine | |
| CN117928879B (en) | Large-caliber hypersonic wind tunnel test cabin capable of being opened and closed in segmented mode and application method thereof | |
| CN218324934U (en) | Dust removal purification device | |
| CN218489930U (en) | Tool equipment for dismounting and storing air inlet passage of Boeing 737NG aircraft engine | |
| CN216196939U (en) | Expandable stage | |
| CN115077839B (en) | Dynamic loading device for vector deflection aerodynamic force simulation of vectoring nozzle expansion sheet | |
| CN215215519U (en) | Electronic display screen support damping air pressure rod assembly | |
| CN215378683U (en) | Connection structure of generator and expander | |
| CN217237185U (en) | Pneumatic performance test system under high developments of power machinery | |
| CN221017141U (en) | Air-drying device for decoration engineering paint | |
| CN214026722U (en) | Demoulding device for rubber hose |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |