CN203798528U - Wind tunnel test device for simulating different field wind directions - Google Patents
Wind tunnel test device for simulating different field wind directions Download PDFInfo
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- CN203798528U CN203798528U CN201420139528.2U CN201420139528U CN203798528U CN 203798528 U CN203798528 U CN 203798528U CN 201420139528 U CN201420139528 U CN 201420139528U CN 203798528 U CN203798528 U CN 203798528U
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Abstract
The utility model relates to a wind tunnel test device for simulating different field wind directions. The device is characterized in that cylindrical balls are placed on the circumference of a circular ball pallet on an elevating support to support a test platform, the test platform includes a circular disk, a sample is placed on the test platform, the circular disk is marked with 360 degree of calibrated scales, a rotary track is arranged under the test platform, a platform rotating shaft is mounted in the middle of the test platform, the bottom of the platform rotating shaft is provided with a large gear, a control switch controls a stepping motor, a rotating shaft of the stepping motor drives a small gear to rotate, the small gear drives the large gear at the bottom of the platform rotating shaft to rotate, the large gear drives the platform rotating shaft and the test platform to rotate, the circumferential rotary track drives the circular ball pallet on the elevating support to rotate, and the test platform is embedded into the bottom of a wind tunnel test segment and leveled with the bottom of the wind tunnel test segment. The wind tunnel test device can comprehensively simulate field wind directions, solves the problem that wind direction errors occur when the wind speed and direction are changeful, and provides a test condition for researches on characteristics of dust storm movement under the different wind directions and speeds.
Description
Technical field
The utility model relates to
oneplant the different wind direction test units in blowing sand wind tunnel empirical model simulation field.
Background technology
Blowing sand wind tunnel test is the large-scale instrument and equipment designing for simulation field dust storm phenomenon.Blowing sand wind tunnel is generally divided into the parts such as power system, steady flow segment, contraction section, test section and diffuser.Carrying out in the simulated experiment of dust storm phenomenon, wind speed changes continuously speed governing in the scope of 2 meter per second～40 meter per seconds, and wind speed size is completed by manual control variator.In scientific experiment activity, the wind direction in wind-tunnel is fixed single, can not be as field 360 ° of wind directions all changing.Therefore studying different wind directions is an important physical amount of carrying out the research of stream and engineering calculation to the deflation of model.In the experimental study of wind sand environment hole observation wind-driven sediment, there is such problem, after a kind of wind direction has been tested, needing a period of time replacing model experiment angle to change empirical model is the problem that blowing sand wind tunnel test needs solve to the wind direction of experiment.
Summary of the invention
The purpose of this utility model provides for addressing the above problem exactly
oneplant the device of the different wind directions in wind tunnel experiment simulation field.
The purpose of this utility model can reach by following measures:
oneplant the device of the different wind directions in wind tunnel experiment simulation field, mainly by blowing sand wind tunnel test section, test specimen model, the round hole of test platform, circular ball pallet, test section bottom and lifting support composition.Lifting support is nested in support, puts into column type ball and support test platform with it on lifting support on the circular ball pallet circumference being equipped with, test platform is circular discs, test specimen model is placed on test platform top, on disk, be carved with 360 ° of rules, the round hole surrounding of rotation scale and test section bottom is lined with sponge block, there is circumference swing-around trajectory test platform below, platform rotating shaft is equipped with in centre, platform rotating shaft bottom, speed change is housed in support and has gear wheel, gauge tap control step motor, stepping motor rotating shaft drives pinion rotation, pinion wheel band moving platform rotating shaft bottom portion gear wheel rotates, gear wheel is with again moving platform rotating shaft and test platform rotation, circular ball pallet rotation on lifting support below driving by the circumference swing-around trajectory of below, in the round hole that test platform embedding blowing sand wind tunnel test section bottom has, and with fair at the bottom of test chamber.
The utility model has the advantages that:
1, simple in structure, easy to operate, practical, cost is low.In blowing sand wind tunnel test, as long as rotational model angle just can change the deflation of the wind direction of testing to model, the wind direction having solved in current wind-tunnel is the problem of fixed single.When gathering the data of stream under different wind direction and wind velocities, as long as rotate test platform, allow model sample just to wind direction surface, within the regular hour.Data in can obtaining during this period of time.
2, deft design is reasonable.On the disk of test platform top, be carved with the angle of 360 °, 1 ° of every lattice.In the middle of platform, there is rotating shaft below, has speed gear motoring ring test platform to rotate in rotating shaft, and test platform below has circular orbit to be connected with ball; Thereby reduce test platform rotation friction.On test platform support, stepper motor is housed, on motor axis, has pinion wheel, gear is connected with the gear wheel in platform rotating shaft, makes test platform slow rotation, thereby subtracts low-angle error.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1,
onethe device of planting the different wind directions in wind tunnel experiment simulation field, is made up of blowing sand wind tunnel test section 13, test specimen model 1, diameter 1000 ㎜ test platforms 2, support 3 and lifting support 9.Lifting support 9 is nested in support 3, and it supports test platform 2 on lifting support 9, to have circular ball pallet 6 circumference to put into column type ball 5 use; Test specimen model 1 is placed on test platform 2 tops, and test platform 2 is circular discs, is carved with 360 ° of rules 15 on disk, 1 ° of the every lattice of rule.Rotation scale 15 is lined with sponge block 17 with the round hole surrounding of test section 13 bottoms, there is circumference swing-around trajectory 4 test platform 2 belows, platform rotating shaft 7 is equipped with in centre, platform rotating shaft 7 bottoms, gear wheel 8 is housed in support 3, gauge tap 12 control step motors 11, stepper motor 11 rotating shafts drive pinion wheel 10 to rotate, pinion wheel 10 drives gear wheel 8 to rotate, gear wheel 8 is with again moving platform rotating shaft 7 and test platform 2 to rotate, there is circular ball pallet 6 on the lifting support 9 below 4 drives of circumference swing-around trajectory to rotate by below, diameter 1000 ㎜ test platforms 2 embed blowing sand wind tunnel test section 13 bottoms and open in a round hole of 1004 ㎜.
The test specimen model 1 that field is fetched is put on test platform 2, starts lifting support 9, and sample surfaces and test section 13 bottoms are maintained an equal level.After arranging that test model completes on test platform 2, open moving stepper motor 11 switches, start gauge tap 12, stepper motor 11 rotates motoring ring test platform 2 and rotates, in the time reaching the wind direction angle needing, closing switch, test platform 2 stops the rotation, and starts blower fan and starts wind erosion sample to carry out wind speed deflation experiment, after one wind erosion period, closing control blower fan 12, starts to carry out measured data of experiment collection.Complete after the collection of wind erosion sample data, then open gauge tap 12, stepper motor 11 rotates when motoring ring test platform 2 turns to next the wind direction angle needing and stops the rotation, and starts next wind direction simulation weathering test.Thereby the making that ensures to change model velocity and reduce test model, ensures the exact value that experimental data is measured, and provides reliable test condition for studying dust storm motion characteristics under different wind direction and wind velocity conditions.
Claims (1)
1.
oneplant the device of the different wind directions in wind tunnel experiment simulation field, mainly by blowing sand wind tunnel test section (13) test specimen model (1), the round hole (16) of test platform (2), circular ball pallet (6), test section (13) bottom and lifting support (9) composition, it is characterized in that lifting support (9) is nested in support (3), on circular ball pallet (6) circumference being equipped with on lifting support (9), put into column type ball (5) and support test platform (2) with it, test platform (2) is circular discs, test specimen model (1) is placed on test platform (2) top, on disk, be carved with 360 ° of rules (15), test platform (2) is lined with sponge block (17) with the round hole surrounding of blowing sand wind tunnel test section (13) bottom, there is circumference swing-around trajectory (4) test platform (2) below, platform rotating shaft (7) is equipped with in centre, platform rotating shaft (7) bottom, speed change is housed in support (3) and has gear wheel (8), gauge tap (12) control step motor (11), stepper motor (11) rotating shaft drives pinion wheel (10) to rotate, pinion wheel (10) band moving platform rotating shaft (7) bottom gear wheel (8) rotates, gear wheel (8) is with again moving platform rotating shaft (7) and test platform (2) rotation, drive upper circular ball pallet (6) rotation of lifting support (9) of below by the circumference swing-around trajectory (4) of below, in the round hole (16) that test platform (2) embedding blowing sand wind tunnel test section (13) bottom has, and maintain an equal level with test chamber (13) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139528.2U CN203798528U (en) | 2014-03-26 | 2014-03-26 | Wind tunnel test device for simulating different field wind directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139528.2U CN203798528U (en) | 2014-03-26 | 2014-03-26 | Wind tunnel test device for simulating different field wind directions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798528U true CN203798528U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420139528.2U Expired - Fee Related CN203798528U (en) | 2014-03-26 | 2014-03-26 | Wind tunnel test device for simulating different field wind directions |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900786A (en) * | 2014-04-04 | 2014-07-02 | 中国科学院寒区旱区环境与工程研究所 | Sand wind environment wind tunnel experiment model device for simulating different field wind directions |
| CN104949817A (en) * | 2014-03-26 | 2015-09-30 | 中国科学院寒区旱区环境与工程研究所 | Test device for simulating wind in different directions in field for wind and sand environment wind tunnel test model |
| CN108680329A (en) * | 2018-06-13 | 2018-10-19 | 郑州大学 | A kind of flow tunnel testing device and method of adjustable test piece relative position |
| CN108760229A (en) * | 2018-07-27 | 2018-11-06 | 百色学院 | Wind tunnel test wake measurement lifting gear |
| CN113109017A (en) * | 2021-04-27 | 2021-07-13 | 杭州电子科技大学 | Self-elevating ocean platform wind load coefficient test experiment system |
| CN114200081A (en) * | 2021-12-02 | 2022-03-18 | 河北交规院瑞志交通技术咨询有限公司 | Dust suppression efficiency measuring device and measuring method for dust suppressant |
-
2014
- 2014-03-26 CN CN201420139528.2U patent/CN203798528U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949817A (en) * | 2014-03-26 | 2015-09-30 | 中国科学院寒区旱区环境与工程研究所 | Test device for simulating wind in different directions in field for wind and sand environment wind tunnel test model |
| CN103900786A (en) * | 2014-04-04 | 2014-07-02 | 中国科学院寒区旱区环境与工程研究所 | Sand wind environment wind tunnel experiment model device for simulating different field wind directions |
| CN108680329A (en) * | 2018-06-13 | 2018-10-19 | 郑州大学 | A kind of flow tunnel testing device and method of adjustable test piece relative position |
| CN108760229A (en) * | 2018-07-27 | 2018-11-06 | 百色学院 | Wind tunnel test wake measurement lifting gear |
| CN108760229B (en) * | 2018-07-27 | 2024-01-19 | 百色学院 | Wind tunnel test wake flow measurement lifting device |
| CN113109017A (en) * | 2021-04-27 | 2021-07-13 | 杭州电子科技大学 | Self-elevating ocean platform wind load coefficient test experiment system |
| CN113109017B (en) * | 2021-04-27 | 2023-03-14 | 杭州电子科技大学 | Self-elevating ocean platform wind load coefficient test experiment system |
| CN114200081A (en) * | 2021-12-02 | 2022-03-18 | 河北交规院瑞志交通技术咨询有限公司 | Dust suppression efficiency measuring device and measuring method for dust suppressant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20150326 |
|
| EXPY | Termination of patent right or utility model |