CN207515996U - The wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind - Google Patents
The wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind Download PDFInfo
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- CN207515996U CN207515996U CN201721554374.3U CN201721554374U CN207515996U CN 207515996 U CN207515996 U CN 207515996U CN 201721554374 U CN201721554374 U CN 201721554374U CN 207515996 U CN207515996 U CN 207515996U
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Abstract
The utility model discloses the wind- tunnel investigation devices that cable machine cage under the influence of a kind of strong wind is swung, it includes the wind simulator for simulating strong wind atmosphere, the wind simulator is arranged on the side of pendulous device, the pendulous device is for simulating cable machine cage and being matched with wind simulator, swing situation of the simulation cable machine cage under different wind speed scales;The pendulous device is matched with for recording the test data sheet instrument of analog reslt, the test data sheet instrument record test result.The cable machine cage that this device can be simulated under windy conditions swings situation, and then provides data supporting for subsequent research.
Description
Technical field
The utility model belongs to cable machine Construction Study field, and in particular to a kind of research cable machine cage influences the bottom in strong wind
Dynamic flow tunnel testing device and method.
Background technology
Cable machine is as main concrete transportation in high-mountain gorge areas arch dam construction and pours machinery, has and once takes
It builds, the characteristics of full construction time is benefited.From its own structural analysis, the flexible cable of cable machine is the main portion in cage transportational process
Part, while consider pouring highly for cable machine, the length of hawser can reach hundreds of meters;Furthermore consider from the construction environment of cable machine,
Cable machine cage is travelled to and fro between feeding platform and dam body, is also easy to produce and is conflicted with the construction machinery in dam construction storehouse and personnel;In addition,
Cable machine is arranged in river valley two sides, is acted on by along river to wind load, cable machine cage can generate swing by a relatively large margin, this feelings
Condition is unfavorable to the construction safety of cable machine.
For certain high-mountain gorge areas as Southwestern China, along river valley to wind-force up to nine grades, it is annual in up to seven grades
The time accounting of wind is larger, and therefore, the phenomenon that cable machine cage is significantly swung under this strong wind atmosphere is worth being concerned.However
Natural wind is a kind of arbitrary excitation, and in time under the conditions of a certain fixed wind scale, wind speed size is also random within a certain range
Change, thus carry out approximate calculation using mechanical model to reflect the true feature of cage swing.
Therefore, using model test method, structure of cable crane model is made, and record and hang under the strong wind atmosphere of manual simulation
The process that tank is swung, and then form a kind of flow tunnel testing device for studying cable machine cage swaying movement regularity under wind effect.
Utility model content
The utility model discloses a kind of simple and fine strong wind shadow according to the demand that research is swung to cable machine wind-engaging
The flow tunnel testing device and method, this device for ringing lower cable machine cage swing research can simulate the cable machine cage under windy conditions
Swing situation, and then provide data supporting for subsequent research.
In order to realize above-mentioned technical characteristic, what the purpose of this utility model was realized in:Cable under the influence of a kind of strong wind
The wind- tunnel investigation device that machine cage is swung, it includes the wind simulator for simulating strong wind atmosphere, the wind simulation dress
The side for being arranged on pendulous device is put, the pendulous device is simulated for simulating cable machine cage and being matched with wind simulator
Swing situation of the cable machine cage under different wind speed scales;The pendulous device for recording the experiment of analog reslt with remembering
Record instrument matches, the test data sheet instrument record test result.
The wind simulator includes bellows stent, and bellows, the inner bellows are equipped at the top of the bellows stent
Exchange multi gear fan is installed, the bellows are made of transition, point hole section and flat segments, are set in the air outlet position of bellows
There is anemoclinograph, the anemoclinograph is mounted on anemoscope stent.
Wind filtering screen is installed, described point of hole section is internally provided with rectangular cellular air duct inside the transition.
The pendulous device includes swinging mounting, and the top braces of the swinging mounting are equipped with cross bar, the cross bar it
Between crossbeam is installed, the intermediate position of the crossbeam is lifted with swing rope, and one end of the swing rope is connected with cage, and the other end bypasses
Swing rope guide hole, and be connected with manual reel, the swing rope guide hole is fixedly mounted on the bottom of cross bar.
The cage is made of light aluminum alloy, and surface is coated with fluorescent paint, and shape is barrel-shaped inner containment certain mass
Counterweight.
The swinging mounting is supported by four liftable tripods, and every liftable tripod support all includes more piece
Telescopic rod is respectively marked with two length dimensions from top to bottom and from bottom to up on every section telescopic bar.
The test data sheet instrument is composed of angle marking plate component and high-definition camera, the high-definition camera with
Angle marking plate component is positioned opposite, and vertical with wind speed direction.
The high-definition camera is fixedly mounted on camera mount.
The angle marking plate component includes angle marking plate, and the angle marking plate is fixedly mounted on angle mark sheet frame
On frame body, the angle marking plate frame body support is mounted in flexible chute, and the flexible chute is mounted on angle marking plate
On tripod, angled tag line is set, the angle tag line matches finger with angle index line on the angle marking plate
Show angle value;The angle index line is marked using fluorescent paint, and is distinguished in positive negative direction with different colours;
The initial position of the swing rope is overlapped with the angle tag line of angle marking plate component.
The utility model has the advantages that:
1st, by using above-mentioned wind- tunnel investigation device, the cable machine cage that can be simulated under windy conditions swings feelings
Condition, and then provide data supporting for follow-up study.
2nd, by the bellows of the wind simulator by section be square transition, point hole section, flat segments according to
It is secondary to be formed by connecting, wherein, the wind that the exchange multi gear fan generates is converged and smoothes out introducing point hole section by transition, due to dividing hole
Section has additional vertical and horizontal diaphragm, and therefore wind energy is enough evenly distributed, and finally by the guiding of flat segments, the velocity perturbation of wind is further
It is steady.The flat segments include many sections, are increased and decreased that the wind of simulation is made to meet model test as needed in experiment
The natural wind feature that wind speed fluctuates in a certain range under some wind scale after uniform zoom.
3rd, it is made by the wind filtering screen by the square hole gauze of equal aperture, is sized to be preferably installed to described
The transition of bellows during experiment, coordinates the gear of fan, by increasing and decreasing gauze according to the registration of anemoclinograph every time
The number of plies realize the regulation and control of wind speed wind scale.
4th, the swing process of cage can clearly be recorded under dark room conditions by described ensure that by fluorescent paint,
Scale in the processing of later stage video on reference angle degree marking plate can obtain the pivot angle size at cage each moment.
5th, the swing process of cage can be clearly recorded under dark room conditions by high-definition camera, in the processing of later stage video
Scale on middle reference angle degree marking plate can obtain the pivot angle size at cage each moment.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the flat segments structure diagram of the bellows of the utility model.
Fig. 3 divides hole section structure diagram for the bellows of the utility model.
Fig. 4 is the transition structure diagram of the bellows of the utility model.
Fig. 5 is the exchange multi gear fan structure diagram of the utility model.
In figure:Bellows 1, transition 2, divide hole section 3, flat segments 4, exchange multi gear fan 5, bellows stent 6, swinging mounting 7,
Swing rope guide hole 8, cross bar 9, crossbeam 10, swing rope 11, cage 12, manual reel 13, camera mount 14, high-definition camera
15th, anemoscope stent 16, anemoclinograph 17, angle marking plate tripod 18, angle index line 19, flexible chute 20, angle
Tag line 21, angle marking plate 22, angle marking plate frame body 23.
Specific embodiment
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
Embodiment 1:
As shown in Figs. 1-5, the wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind, it is included for mould
Intend the wind simulator of strong wind atmosphere, the wind simulator is arranged on the side of pendulous device, and the pendulous device is used for mould
Intend cable machine cage and matched with wind simulator, swing situation of the simulation cable machine cage under different wind speed scales;The pendulum
Dynamic device is matched with for recording the test data sheet instrument of analog reslt, the test data sheet instrument record experiment knot
Fruit.
Further, the wind simulator includes bellows stent 6, and the top of the bellows stent 6 is equipped with bellows 1,
Exchange multi gear fan 5 is installed, the bellows 1 are made of transition 2, point hole section 3 and flat segments 4, in wind inside the bellows 1
The air outlet position of case 1 is provided with anemoclinograph 17, and the anemoclinograph 17 is mounted on anemoscope stent 16.Above-mentioned
Transition 2, point hole section 3 and flat segments 4 are connected in sequence, wherein, transition 2 is connected with the air outlet of fan, can be by fan
The wind of blowout is converged and is smoothly transitted, and wind can be divided on aerial cross sectional the distribution of " well " font by point hole section 3, finally and length
The flat segments 4 of changeable connect.
Further, wind filtering screen 24 is installed, described point of hole section 3 is internally provided with rectangular cellular inside the transition 2
Air duct.The wind filtering screen 24 is made of frame and square hole gauze, and size is just consistent with the transition internal diameter, so as to
Enough it is rigidly mounted to transition.Coordinate the gear of fan according to the registration of anemoclinograph every time, by increasing and decreasing wind filtering screen 24
The number of plies realize the regulation and control of wind speed wind scale.
Further, the bellows are that the transition of square, point hole section, flat segments are connected in sequence by section,
Wherein, the wind that the exchange multi gear fan generates is converged and smoothes out introducing point hole section by transition, due to a point hole section have additional it is vertical
Therefore wind energy is enough evenly distributed diaphragm plate, and finally by the guiding of flat segments, the velocity perturbation of wind is further steady.It is described
Flat segments include many sections, be increased and decreased as needed in experiment so as to make the wind of simulation meet after model test uniform zoom
The natural wind feature that wind speed fluctuates in a certain range under some wind scale.
Further, the pendulous device includes swinging mounting 7, and the top braces of the swinging mounting 7 are equipped with cross bar
9, crossbeam 10 is installed between the cross bar 9, the intermediate position of the crossbeam 10 is lifted with swing rope 11, one end of the swing rope 11
Cage 12 is connected with, the other end bypasses swing rope guide hole 8, and is connected with manual reel 13, and the swing rope guide hole 8 fixes peace
Mounted in the bottom of cross bar 9.The swing rope 11 uses constantan wire, and length can be adjusted by manual reel 13.
Further, the cage 12 is made of light aluminum alloy, and surface is coated with fluorescent paint, and shape is barrel-shaped internal appearance
Receive the counterweight of certain mass.Ensure that by fluorescent paint can clearly record the swing process of cage under dark room conditions, rear
Scale in the processing of phase video on reference angle degree marking plate can obtain the pivot angle size at cage each moment.
Further, the swinging mounting 7 is supported by four liftable tripods, every liftable tripod support
All comprising Multi-section telescopic rod, two length dimensions from top to bottom and from bottom to up are respectively marked on every section telescopic bar.So as to make
Obtaining the length of cycloid can read according to size from top to bottom, and the height of cage can be read according to size from bottom to up.
Further, the test data sheet instrument is composed of angle marking plate component and high-definition camera 15, described
High-definition camera 15 and angle marking plate component are positioned opposite and vertical with wind speed direction.
Further, the high-definition camera 15 is fixedly mounted on camera mount 14.Existed by high-definition camera 15
The swing process of cage can be clearly recorded under dark room conditions, the scale in the processing of later stage video on reference angle degree marking plate is
The pivot angle size at cage each moment can be obtained.
Further, the angle marking plate component includes angle marking plate 22, and the angle marking plate 22 is fixedly mounted
On angle marking plate frame body 23, the support of angle marking plate frame body 23 is mounted in flexible chute 20, described flexible
Sliding slot 20 is mounted on angle marking plate tripod 18, and angled tag line 21, the angle are set on the angle marking plate 22
Degree tag line 21 matches instruction angle value with angle index line 19;The angle index line 19 is marked using fluorescent paint, and just
It is distinguished in negative direction with different colours.
Further, the angle index on the marking plate is coated with fluorescent paint, and positive and negative direction carries out color to pivot angle
The light of different colours can be sent out under dark room conditions by distinguishing.Therefore, the cage angle of oscillation recorded by the high-definition camera
Degree changes, and direct basis can be coated with the angle marking plate of fluorescent paint with reference to acquisition in the processing of later stage video.
Further, the initial position of the swing rope 11 is overlapped with the angle tag line 21 of angle marking plate component.
Embodiment 2:
Using the test method for the wind- tunnel investigation device that cable machine cage under the influence of any one strong wind is swung, it includes
Following steps:
Step1:Above-mentioned pendulous device is installed, wind simulator is installed, and set up wind speed and wind in the side of pendulous device
To instrument 17, test data sheet instrument is installed in pendulous device another side, high-definition camera is installed in the opposite face of test data sheet instrument
Machine 15;
Step2:Swing rope 11 on pendulous device is installed, and the other end of swing rope 11 is connected with manual reel 13;
Step3:11 height of swinging mounting 7, angle marking plate tripod 18 and swing rope is adjusted, and ensures cycloid 11 and angle
Angle tag line 21 on degree marking plate 22 coincides;
Step4:The counterweight of appropriate weight is placed inside cage 12 according to test requirements document;
Step5:Start wind simulator, adjust the wind speed of exchange multi gear fan 5, blow cage 12;
Step6:The angle of oscillation of swing rope 11 and cage 12 in swing process is recorded by high-definition camera 15 and changes feelings
Condition;
Step7:The video that high-definition camera 15 is recorded carries out post-processing, and data are analyzed.
Above-described embodiment is used for illustrating the utility model rather than limiting the utility model, in this practicality
In novel spirit and scope of the claims, to any modifications and changes that the utility model is made, this reality is both fallen within
With novel protection domain.
Claims (9)
1. a kind of wind- tunnel investigation device that cable machine cage is swung under the influence of strong wind, it is characterised in that:It includes simulating
The wind simulator of strong wind atmosphere, the wind simulator are arranged on the side of pendulous device, and the pendulous device is used to simulate
Cable machine cage is simultaneously matched with wind simulator, swing situation of the simulation cable machine cage under different wind speed scales;The swing
Device is matched with for recording the test data sheet instrument of analog reslt, the test data sheet instrument record test result.
2. the wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind according to claim 1, feature
It is:The wind simulator includes bellows stent(6), the bellows stent(6)Top bellows are installed(1), the wind
Case(1)Inside is equipped with exchange multi gear fan(5), the bellows(1)By transition(2), divide hole section(3)And flat segments(4)Structure
Into in bellows(1)Air outlet position be provided with anemoclinograph(17), the anemoclinograph(17)Mounted on anemoscope branch
Frame(16)On.
3. the wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind according to claim 2, feature
It is:The transition(2)Inside is equipped with wind filtering screen(24), it is described to divide hole section(3)It is internally provided with rectangular cellular air duct.
4. the wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind according to claim 1, feature
It is:The pendulous device includes swinging mounting(7), the swinging mounting(7)Top braces cross bar is installed(9), it is described
Cross bar(9)Between crossbeam is installed(10), the crossbeam(10)Intermediate position be lifted with swing rope(11), the swing rope(11)'s
One end is connected with cage(12), the other end is around swing rope guide hole(8), and with manual reel(13)It is connected, the swing rope is drawn
Guide hole(8)It is fixedly mounted on cross bar(9)Bottom.
5. the wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind according to claim 4, feature
It is:The cage(12)It is made of light aluminum alloy, surface is coated with fluorescent paint, and shape is barrel-shaped inner containment certain mass
Counterweight.
6. the wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind according to claim 4, feature
It is:The swinging mounting(7)By four liftable tripod supports, every liftable tripod support all includes more piece
Telescopic rod is respectively marked with two length dimensions from top to bottom and from bottom to up on every section telescopic bar.
7. the wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind according to claim 1, feature
It is:The test data sheet instrument is by angle marking plate component and high-definition camera(15)It is composed, the high-definition camera
(15)It is positioned opposite and vertical with wind speed direction with angle marking plate component.
8. the wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind according to claim 7, feature
It is:The high-definition camera(15)It is fixedly mounted on camera mount(14)On.
9. the wind- tunnel investigation device that cable machine cage is swung under the influence of a kind of strong wind according to claim 7, feature
It is:The angle marking plate component includes angle marking plate(22), the angle marking plate(22)It is fixedly mounted on angle mark
Know sheet frame frame body(23)On, the angle marking plate frame body(23)Support is mounted on flexible chute(20)On, the flexible cunning
Slot(20)Mounted on angle marking plate tripod(18)On, the angle marking plate(22)The upper angled tag line of setting(21),
The angle tag line(21)With angle index line(19)Match instruction angle value;The angle index line(19)Using fluorescence
Paint label, and distinguished in positive negative direction with different colours;The angle tag line(21)With swing rope(11)Initial position overlap.
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Cited By (1)
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CN107782528A (en) * | 2017-11-20 | 2018-03-09 | 三峡大学 | The wind- tunnel investigation device and method that cable machine cage is swung under the influence of a kind of strong wind |
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CN107782528A (en) * | 2017-11-20 | 2018-03-09 | 三峡大学 | The wind- tunnel investigation device and method that cable machine cage is swung under the influence of a kind of strong wind |
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