CN109186924B - A kind of charming appearance and behaviour particle movement wind comfort device - Google Patents
A kind of charming appearance and behaviour particle movement wind comfort device Download PDFInfo
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- CN109186924B CN109186924B CN201810862459.0A CN201810862459A CN109186924B CN 109186924 B CN109186924 B CN 109186924B CN 201810862459 A CN201810862459 A CN 201810862459A CN 109186924 B CN109186924 B CN 109186924B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
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Abstract
The invention discloses a kind of charming appearance and behaviour particles to move wind comfort device, and lower box top panel has dropout gap, and bottom leading portion is provided with flowing transition hollow body, and back segment is provided with particulate matter cleaning storehouse of being scattered；Upper box includes right baffle-plate, rear baffle and right shell body, and the bearing plate of lower part tilts down from front to back, constitutes upper box gap with the lower end of rear baffle；Front apron lower end is connected to load-bearing front edge of board；Upper box gap is located at the top in dropout gap.The beneficial effects of the present invention are, 1, simultaneously the Multiple factors such as wind speed, particulate matter speed and particle logistics capacity are regulated and controled, to simulate the particle situation under different situations.2, the movement of charming appearance and behaviour particle is intuitively observed, works can also be added, observe the influence of wind and snow, sandstorm to works.3, experiment interference factor is preferably minimized using flowing transition hollow body and more closed environment using long body structure.
Description
Technical field
The present invention relates to flow tunnel testing device technical field, especially a kind of charming appearance and behaviour particle movement wind comfort dress
It sets.
Background technique
Snowfall is a kind of common natural phenomena, and snow disaster can be brought when snowfall is big and brings inconvenience to the mankind, very
To being life threatening property safety.Natural snowfall is usually associated with wind action, and the function and effect and feature of drifting snow hazard are eager
It needs to be recognized.Similar with snowfall, sandstorm is also a kind of natural calamity.Drifting snow hazard and the essence of sandstorm are charming appearance and behaviour
Grain movement, wind tunnel test are that a kind of preferable research technique is used to study both natural calamities.However, existing wind and snow research needs
To carry out in cryonetic wind tunnel laboratory.Reality is cryonetic wind tunnel laboratory cost height and quantity is few, and conventional wind-tunnel
Cost is relatively low and quantity is more, thus becomes in conventional tunnel simulation snowfall with wind action a kind of economically viable
Approach.Meanwhile the wind-driven sediment flow tunnel testing device that can refer to is also less.
Tiny particulate matter is often selected to simulate snow particle or sand in wind tunnel test simulation, as follows:
1. a kind of building Sand screen patent of invention (application number 201710743771.3).The invention is by being arranged small tooth
Wheel, first bearing, the first motion bar, gear wheel, fixing axle, the first pull rod, the second pull rod, second bearing, the second motion bar, tiltedly
The cooperation of bar, sliding slot, slide bar, third pull rod, shaft, pulling plate, sieve, slide plate and sliding block, it is time saving and energy saving to have achieved the effect that, mentions
The high practicability of traditional building Sand screen.
2. a kind of Sand screen (application number CN201220194034.5).Frame including surrounding, it is solid on the frame of surrounding
Dingan County encloses the guide plate of type equipped with three bread, and wherein the guide plate of two sides is the baffle with slope, another guide plate is vertical
The vertical plate of placement, three bread, which enclose, is equipped with filter screen between the guide plate of type, and filter screen is fixed on described three by frame
Bread encloses on the guide plate of type, and several supporting beams are fixedly installed on the frame, and the supporting beam is the steel pole of triangle,
And the sharp edge of supporting beam is upward.Present apparatus structure is simple, can be used for a large amount of production work, and speed of production is fast, high-efficient.
3. a kind of belt transport unit detection protection bright its feature of patent (application number CN201611107268.0) of equipment exists
In: the described belt transport unit detection protection equipment include bracket, conveyer belt shaft, belt, light sensor, shaft coupling,
Angular transducer, shaft；Wherein: shaft is driven rack-mount, one end shaft coupling side setting of bracket by shaft coupling
Angular transducer is installed, the middle position setting of shaft is equipped with light sensor, conveyer belt transmission is equipped on the downside of bracket
Device, conveyer belt transmission device include conveyer belt shaft and belt composition.
4. a kind of snowing device and climatic chamber (201410410283.7).The invention by water cooling cooling-water machine to water in water tank into
Water is sprayed by spray head after reaching predetermined snowfall temperature and forms snowfall by row cooling.
5. artificial snowing device (200710026839.2).The invention drives shaft rotation, the bottom of cabinet by power mechanism
Portion is with the orifice plate in logical snow hole, and shaft is vertical relative to orifice plate, and the scraper plate for being in contact with it cooperation is equipped in the top of orifice plate, should
Scraper plate is circumferentially connect with shaft.
6. a kind of low energy consumption high-efficiency wind-tunnel (201520060819.7) of energy snowfall simulation process.The invention devises one kind
The wind-tunnel of snowfall simulation, power section install blower, and refrigerating section installs liquid nitrogen refrigerating system, and water mist, which generates section, the pneumatic spray of atomization
Mouth is sharply cooled down by water mist and forms snowfall.
1., 2. aforementioned existing scheme sieves sand as the main purpose with high-volume, do not account for sieving accurately controlling for husky amount, and not
Consider wind action.Scheme is 3. using top transmission assembling device as the core investigation object of device, with the reasonability of transmission device
As the main purpose with controllability, and its major function is to be transmitted object, can not carry out to multiple influence factors
Regulate and control simultaneously, and does not consider wind action.4., 5., 6. aforementioned existing scheme produces snow from physical change angle or by low
The water-atomization cooling of warm wind-tunnel forms snow, and higher cost cannot make good use of existing a large amount of conventional wind-tunnel.
Summary of the invention
In order to study drifting snow hazard and sandstorm, the charming appearance and behaviour particle that the present invention provides a kind of suitable for conventional wind-tunnel is transported
Dynamic simulation test device, in natural phenomenas such as conventional tunnel simulation nature snowfall, wind blown snow movement, wind-driven sediments.
Realize that the technical solution of the object of the invention is as follows:
A kind of charming appearance and behaviour particle movement wind comfort device, including lower box, lower box include the riser of arranged on left and right sides
And top panel, top panel are additionally provided with dropout gap；The intracorporal bottom of nowel, it is hollow that leading portion is provided with flowing transition
Body, back segment are provided with particulate matter cleaning storehouse of being scattered；The dropout gap positioned at flowing transition hollow body and is scattered
Top of the junction in grain object cleaning storehouse close to particulate matter cleaning storehouse side of being scattered；Further include upper box, upper box include according to
The secondary right baffle-plate being fixedly connected, rear baffle and right shell body further include the bearing plate of front apron and lower part；The bearing plate is from going to
After tilt down, front end is provided with the first rotation axis, and the both ends of the first rotation axis are connected to the lower end of front apron, and rear end is provided with
Second rotation axis simultaneously constitutes upper box gap with the lower end of rear baffle；Front apron top two sides are respectively arranged with fixed spiral shell
Bolt, fixing bolt are set in the bolt mobile chute on left baffle and right baffle top；It further include vertical columns before a pair
With vertical columns after a pair；The upper box is fixed on the top of lower box, second rotation axis by forward and backward vertical columns
Both ends be connected to it is the pair of after vertical columns middle part, upper box gap is located at the top in dropout gap；Also wrap
Third rotation axis is included, the both ends of third rotation axis are connected to the top of the pair of rear vertical columns by rolling bearing；Also wrap
Cable wire is included, in third rotation axis, the other end is connected to the front of bearing plate for one end solderless wrapped connection of cable wire.
Further, the bearing plate, the first rotation axis and the second rotation axis are set with conveyer belt jointly, the second rotation axis
One end also passes through motor belt and is connected to stepper motor.
The beneficial effects of the present invention are, 1, simultaneously to Multiple factors such as wind speed, particulate matter speed and particle logistics capacities
Regulated and controled, to simulate the particle situation under different situations.2, the movement of charming appearance and behaviour particle is intuitively observed, can also be added
Works observes the influence of wind and snow, sandstorm to works.3, using long body structure, using flowing transition hollow body with
And more closed environment, experiment interference factor is preferably minimized.4, structure is simple, and feasibility is high, and can make full use of existing
Conventional wind-tunnel, economic performance are high.
Detailed description of the invention
Fig. 1 is the structure chart of experimental rig；
Fig. 2 is the sectional view of upper box in experimental rig.
In figure, the riser of 1- lower box arranged on left and right sides, the upper surface of 2- lower box plate, vertical columns before 3-, the fixed spiral shell of 4-
Bolt, 5- bolt mobile chute, 6- flowing transition hollow body, 7- stepper motor, 8- motor belt, 9- be scattered particulate matter cleaning
Storehouse, 10- rotating rocker, 11- rolling bearing, 12- rear baffle, 13- third rotation axis, 14- cable wire, 15- front apron, the left gear of 16-
Plate, 17- dropout gap, the second rotation axis of 18-, 19- conveyer belt, the first rotation axis of 20-, 21- bearing plate.
Specific embodiment
As shown in Figure 1, experimental rig includes lower box, for long body structure.Lower box includes the riser 1 of arranged on left and right sides
With top panel 2, top panel 2 is additionally provided with dropout gap 17；The intracorporal bottom of nowel, leading portion are provided with flowing transition
Hollow body 6 (dotted line illustrates the upper surface of flowing transition hollow body in figure), back segment are provided with particulate matter cleaning storehouse 9 of being scattered,
Cleaning storehouse 9 can extract out from lower box；Dropout gap 17, positioned at flowing transition hollow body 6 and the particulate matter that is scattered
Clear up the top of the junction close to particulate matter cleaning 9 side of storehouse of being scattered in storehouse 9.
As shown in Fig. 2, upper box includes the right baffle-plate 16, rear baffle 12 and right shell body being fixedly connected sequentially, before further including
Baffle 15 and the bearing plate of lower part 21；Bearing plate 21 tilts down from front to back, and front end is provided with the first rotation axis 20, and first turn
The both ends of moving axis 20 are connected to the lower end of front apron 15, and rear end is provided with the second rotation axis 18 and constitutes with the lower end of rear baffle 12
Upper box gap；15 top two sides of front apron are respectively arranged with fixing bolt 4, and fixing bolt 4 is set in 16 He of right baffle-plate
In the bolt mobile chute 5 on right shell body top.
Further include before a pair vertical columns 3 and it is a pair of after vertical columns；Upper box is fixed on down by forward and backward vertical columns
The top of cabinet, the both ends of the second rotation axis 18 are connected to the middle part of vertical columns after a pair, and upper box gap is located at particulate matter
The top in whereabouts gap 17；It further include third rotation axis 13, the both ends of third rotation axis 13 are connected to one by rolling bearing 11
To the top of rear vertical columns；It further include cable wire 14, in third rotation axis 13, the other end is connected to for one end solderless wrapped connection of cable wire 14
The front of bearing plate 21.Cable wire 14 can be one or two.
Further technical solution is that suit passes jointly in bearing plate 21, the first rotation axis 20 and the second rotation axis 18
Band 19 is sent, one end of the second rotation axis 18 also passes through motor belt 8 and is connected to stepper motor 7.
Experimental rig in use,
A, particulate matter is fitted into upper box, in the case where being covered on the drive of conveyer belt 19 on 21 top of bearing plate, particulate matter
It is fallen into lower box by upper box gap and dropout gap 17, regulates and controls to cover by adjusting the revolving speed of stepper motor 7
The transmission speed in the conveyer belt 19 on 21 top of bearing plate is covered to achieve the purpose that control particulate matter sinking speed.
B, can also be changed in the case where not using stepper motor 7 and conveyer belt 19 by changing the inclination angle of bearing plate 21
Become the falling speed of particulate matter and the flow of particulate matter, specifically: the rear end of bearing plate 21, which is connected to, is fixed on rear baffle 12
In second rotation axis 18 of lower end, which is fixed on after a pair on vertical columns, and spatial position does not change, cable wire one
End is fixed on the front of bearing plate 21, is tightened by rotating rocker (10) or loosens cable wire 14 and affects bearing plate 21 to reach
Change the purpose at inclination angle.After inclination angle changes, the gap width between rear baffle 12 and bearing plate 21 and the second rotation axis 18 changes,
It can control the throughput of particulate matter.The lower end of front apron 15 is connected to the first rotation axis 20 rotated together with bearing plate 21
On, during 21 inclination angle of bearing plate changes, front apron 15 can be rotated around the first rotation axis 20, and pass through fixing bolt
4 are fixed, and fixing bolt 4 can correspondingly carry out in bolt mobile chute 5 according to the position change of front apron 15
Movement is to adjust position.
Wherein, envelope is constituted by the upper surface of the riser 1 of lower box arranged on left and right sides, lower box plate and flowing transition hollow body 6
The flowing space closed can reduce the aerodynamic effects of device.
The effect of flowing transition hollow body 6: when a. simulates particles fall test, particle falls on particulate matter cleaning storehouse of being scattered
9, wind field is not influenced under the effect of hollow body streamlined contour.B. simulation particle starts etc. under wind action does not consider particles fall
Wind-induced motion when, particulate matter can be filled up in advance in particulate matter cleaning storehouse 9 of being scattered, wind can free deflation these particulate matters.
In use, works can also be added in lower box, the influence of wind and snow, sandstorm to works is observed.
The invention has the following advantages that 1, have between the controllable granulation mass emptying of transmission speed, angle (i.e. upper box).
In order to keep upper box loaded particles object portion capacity larger, the design of removable front apron 15 is taken；19 lower part of conveyer belt
Bearing plate 21 provides effective support for particulate matter, is unlikely to oppress the deformation of conveyer belt 19；It is held by the regulation of rotating rocker 10
The inclination angle of weight plate 21, to control the inclination angle of conveyer belt 19；The change at 21 inclination angle of bearing plate not only can change particulate matter downslide
Speed, while also can change the gap between rear baffle 12 come achieve the purpose that control flow.2, flowing transition is empty
The cooperation of heart body 6 is scattered, and whether there is or not the simulations of the wind-induced motion of particles fall for the particulate matter cleaning test of storehouse 9.When simulating particles fall test,
Particle falls on particulate matter cleaning storehouse of being scattered, and does not influence wind field under the effect of hollow body streamlined contour.Particle is simulated in wind action
When lower starting etc. does not consider the wind-induced motion of particles fall, particulate matter can be filled up in advance in particulate matter cleaning storehouse of being scattered, wind can
With these particulate matters of free deflation.
Claims (2)
1. a kind of charming appearance and behaviour particle moves wind comfort device, which is characterized in that
Including lower box, lower box includes the riser (1) and top panel (2) of arranged on left and right sides, and top panel (2) is additionally provided with particle
Object whereabouts gap (17)；The intracorporal bottom of nowel, leading portion are provided with flowing transition hollow body (6), and back segment, which is provided with, to be scattered
Grain object cleaning storehouse (9)；The dropout gap (17) is located at flowing transition hollow body (6) and particulate matter cleaning of being scattered
Top of the junction in storehouse (9) close to particulate matter cleaning storehouse (9) side of being scattered；
It further include upper box, upper box includes the right baffle-plate (16), rear baffle (12) and right shell body being fixedly connected sequentially, and further includes
The bearing plate (21) of front apron (15) and lower part；The bearing plate (21) tilts down from front to back, and front end is provided with first turn
Moving axis (20), the both ends of the first rotation axis (20) are connected to the lower end of front apron (15), and rear end is provided with the second rotation axis (18)
And upper box gap is constituted with the lower end of rear baffle (12)；Front apron (15) the top two sides are respectively arranged with fixing bolt
(4), fixing bolt (4) is set in the bolt mobile chute (5) on right baffle-plate (16) and right shell body top；
Further include before a pair vertical columns (3) and it is a pair of after vertical columns；The upper box is fixed on by forward and backward vertical columns
The top of lower box, the both ends of second rotation axis (18) are connected to the middle part of the pair of rear vertical columns, upper box seam
Gap is located at the top in dropout gap (17)；It further include third rotation axis (13), the both ends of third rotation axis (13) pass through
Rolling bearing (11) is connected to the top of the pair of rear vertical columns；It further include cable wire (14), one end solderless wrapped connection of cable wire (14)
On third rotation axis (13), the other end is connected to the front of bearing plate (21).
2. a kind of charming appearance and behaviour particle as described in claim 1 moves wind comfort device, which is characterized in that the bearing plate
(21), the first rotation axis (20) and the second rotation axis (18) are set with conveyer belt (19) jointly, and one end of the second rotation axis (18) is also
Stepper motor (7) are connected to by motor belt (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810862459.0A CN109186924B (en) | 2018-08-01 | 2018-08-01 | A kind of charming appearance and behaviour particle movement wind comfort device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810862459.0A CN109186924B (en) | 2018-08-01 | 2018-08-01 | A kind of charming appearance and behaviour particle movement wind comfort device |
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| CN109186924A CN109186924A (en) | 2019-01-11 |
| CN109186924B true CN109186924B (en) | 2019-10-01 |
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| CN110118879A (en) * | 2019-06-21 | 2019-08-13 | 石家庄铁道大学 | A kind of snow particle sinking speed measuring device and method |
| CN111579193B (en) * | 2020-04-20 | 2022-05-31 | 哈尔滨工业大学 | Mars dust storm environment simulation device |
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| CN108181075A (en) * | 2018-02-01 | 2018-06-19 | 西南交通大学 | A kind of nature snowfall wind comfort device |
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|---|---|---|---|---|
| JP2001083038A (en) * | 1999-09-10 | 2001-03-30 | Mitsubishi Heavy Ind Ltd | Snow load evaluating method and device used for the same |
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|---|---|---|---|---|
| CN103175672A (en) * | 2013-02-28 | 2013-06-26 | 山东大学 | Construction machinery radiator air tunnel capable of simulating wind and sand impact and using method thereof |
| CN104729823A (en) * | 2015-04-09 | 2015-06-24 | 中国科学院电工研究所 | Sand wind two-phase flow experiment device for buildings and building wind sand experiments |
| CN205352651U (en) * | 2016-02-04 | 2016-06-29 | 甘肃农业大学 | Streamlined emulation plant fixed bed |
| CN108036915A (en) * | 2017-11-08 | 2018-05-15 | 同济大学 | A kind of wind tunnel experiment device of snowfall simulation suitable for high fluidity particle |
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