CN109991393A - A kind of Pneumatic acceleration inclined plate experimental provision for high-speed shadowgraph technique simulation - Google Patents
A kind of Pneumatic acceleration inclined plate experimental provision for high-speed shadowgraph technique simulation Download PDFInfo
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- CN109991393A CN109991393A CN201910352899.6A CN201910352899A CN109991393A CN 109991393 A CN109991393 A CN 109991393A CN 201910352899 A CN201910352899 A CN 201910352899A CN 109991393 A CN109991393 A CN 109991393A
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- 230000001133 acceleration Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004088 simulation Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 17
- 238000002474 experimental method Methods 0.000 description 11
- 230000000149 penetrating effect Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000012502 risk assessment Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Abstract
The invention discloses a kind of Pneumatic acceleration inclined plate experimental provisions for high-speed shadowgraph technique simulation, including sloping plate unit, sloping plate unit includes the fixed bracket of inclined plate, is equipped with inclined plate on the fixed bracket of inclined plate, inclined plate lower end is abutted with bottom plate, and inclined plate is connect with angle adjusting mechanism；Material release device is installed, material release device includes guide rail, material box is equipped on guide rail, towards a side opening of bottom plate, side of the material box far from bottom plate connects material box with Pneumatic acceleration device on inclined plate；Pneumatic acceleration device includes the high-speed cylinder being fixedly connected with material box side wall, and high-speed cylinder is connect by snorkel with air accumulator, and air compressor is provided on air accumulator.The present invention is able to solve the problem of indoor physical model to come down in the prior art can not simulate landslide high-speed motion, and structure is simple, easy to adjust, easily operated.
Description
Technical field
The present invention relates to a kind of landslide physical model experiment fields, and in particular to it is a kind of for high-speed shadowgraph technique simulation
Pneumatic acceleration inclined plate experimental provision.
Background technique
High-speed shadowgraph technique is the high speed rock debris stream developed by large-scale rockfall or rockslide, and speed is generally higher than
20m/s, highest can be more than 100m/s, have the characteristics that volume is big, move distance is remote, destructive strong, such geological disaster is serious
Threaten the people life property safety of China's high-mountain gorge areas and the construction of the main line of communication and safe operation.High-speed remote is sliding
Slope movement mechanism is always the forward position focus in domestic and international project geology field and mountain region disaster field, and indoor physical model is tested
It is to carry out one of the important means of high-speed shadowgraph technique movement mechanism research.
Existing research achievement shows that the movement velocity of high-speed shadowgraph technique is far longer than general catastrophic landslide, fortune
Dynamic speed is to influence landslide motion process and an important factor for stacking characteristic, directly result in the accumulation scope on landslide variation and
The difference of its harmfulness, and the prediction of Landslide deposit range is to carry out the most critical ginseng of landslide disaster risk assessment and contingency management
One of number, therefore simulate the high speed motions on landslide in physical model experiment as far as possible indoors, it is high-speed shadowgraph technique physics
The key of model experiment.
However since there are dimensional effects for indoor physical model experiment, it is also constrained to experimental site, most of landslides
In indoor physical model experiment, the movement velocity for simulating landslide is generally lower than 5m/s, has seriously affected the true of landslide simulation
Property and reliability.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of the prior art, provides a kind of indoor object for being able to solve and coming down in the prior art
Reason model can not simulate a kind of Pneumatic acceleration inclined plate experiment for high-speed shadowgraph technique simulation of the problem of landslide high-speed motion
Device.
In order to solve the above technical problems, present invention employs following technical proposals:
Provide a kind of Pneumatic acceleration inclined plate experimental provision for high-speed shadowgraph technique simulation comprising sloping plate unit,
Sloping plate unit includes the fixed bracket of inclined plate, is equipped with inclined plate on the fixed bracket of inclined plate, inclined plate lower end is abutted with bottom plate, inclined plate and angle
Spend regulating mechanism connection；Material release device is installed, material release device includes guide rail, is equipped with material on guide rail on inclined plate
Box, towards a side opening of bottom plate, side of the material box far from bottom plate connects material box with Pneumatic acceleration device；Pneumatic acceleration dress
The high-speed cylinder including being fixedly connected with material box side wall is set, high-speed cylinder is connect by snorkel with air accumulator, on air accumulator
It is provided with air compressor.
In above-mentioned technical proposal, it is preferred that inclined plate two sides are symmetrically arranged with hollow ring, the support bracket fastened top of inclined plate
It is provided with pulley hoisting device, pulley hoisting device is connect by rope with hollow ring.
In above-mentioned technical proposal, it is preferred that angle adjusting mechanism include with the angular adjustment bar that abuts in the middle part of inclined plate and with
The high fine-tuning device of inclined plate bottom clamping.
In above-mentioned technical proposal, it is preferred that high fine-tuning device includes the micro actuator bottom for being symmetrically arranged with two sides below inclined plate
, it is provided with stay bolt on micro actuator pedestal, truss is socketed on stay bolt, truss is abutted with inclined plate bottom, is arranged on truss
There is the fastener abutted with inclined plate side.
In above-mentioned technical proposal, it is preferred that the two sides of the adjacent openings one side of material box are symmetrically installed with L-type steel plate, L
The upper end of steel plate and iron solid pillar are hinged, and iron solid pillar lower part is provided with front side baffle.
In above-mentioned technical proposal, it is preferred that be respectively arranged in the middle part of the top front end of two sides L-type steel plate and front side baffle
Fixed ring, adjacent fixation interannular are connected with each other by spring.
In above-mentioned technical proposal, it is preferred that the two sides of front side baffle extend outwardly, and the two sides of material box are provided with and front side
The electromagnet of baffle extension fitting.
In above-mentioned technical proposal, it is preferred that be provided on inclined plate to photoelectric sensor is penetrated, include connecing to photoelectric sensor is penetrated
Receive device, relay and transmitter, transmitter and receiver are respectively arranged at adjacent rail lowest positions, and transmitter and connect
The spacing for receiving device is greater than the width of material box.
In above-mentioned technical proposal, it is preferred that the side of guide rail is provided with power switch, and power switch is respectively and to penetrating photoelectricity
Sensor, electromagnet electrical connection.
In above-mentioned technical proposal, it is preferred that be provided with switch valve on snorkel.
The above-mentioned Pneumatic acceleration inclined plate experimental provision for high-speed shadowgraph technique simulation provided by the invention is mainly beneficial to effect
Fruit is:
By setting sloping plate unit, Pneumatic acceleration device and material release device, high-speed slide may be implemented, shock, break
A series of bad, entire motion processes of accumulation, it is real that phenomenon of the experimental material after sliding failure is fully retained in Pneumatic acceleration inclined plate
On the bottom plate of experiment device, to guarantee the accuracy of experiment, to restore the high speed motions really to come down, as far as possible to inquire into
The movement mechanism on landslide provides scientific basis for the risk analysis for the class disaster that comes down, and compensates for current small scale landslide physics
Model experiment can not simulate the defect of gliding mass high-speed motion.
By the way that angle adjusting mechanism is arranged, the physics mould under differing tilt angles without lateral confinement high-speed shadowgraph technique may be implemented
Quasi-, adjustable range is big, and adjustment process is simple, and operation difficulty is smaller；By setting Pneumatic acceleration device, reservoir pressure is adjusted,
The movement velocity and active force of piston rod in cylinder are controlled, so that the initial motion speed of experimental material in material box is controlled, it is real
The simulation of existing different initial velocity high-speed shadowgraph techniques.
Detailed description of the invention
Fig. 1 is the overall structure diagram of Pneumatic acceleration inclined plate experimental provision of the present invention.
Fig. 2 is the sloping plate unit explosive view of Pneumatic acceleration experimental provision.
Fig. 3 is the Pneumatic acceleration schematic device of Pneumatic acceleration experimental provision
Fig. 4 is the material release device schematic diagram of Pneumatic acceleration experimental provision
Wherein, 201- bottom plate plate face, 202- bottom plate bottom frame, 203- steel rib, 204- nut, 205- bolt, 206- inclined plate
Bottom frame, 207- inclined plate plate face, 208- hollow ring, the fixed bracket of 209- inclined plate, 210- pulley hoisting device, 211- pulley hook,
212- angular adjustment bar, 213- angle adjustable bolt, 214- angular adjustment nut, 215- truss, 216- stay bolt, 217- long spiral shell
Bolt matching nut, 218- micro actuator pedestal, 219- fastener, 301- air compressor, pneumatic three element of 302-, 303- air accumulator,
304- switch valve, 305- snorkel, 306- high-speed cylinder, 401- material box, 402- guide rail, 403- sliding block, the front side 404- baffle,
405-L shape steel plate, 406- install bolt, and 407- installs nut, 408- fixed ring, 409- iron solid pillar, 410- spring, 411- electricity
Magnet, 412- is to penetrating photoelectric sensor, 413- relay, 414- power switch.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in Figure 1, it shows for a kind of structure of Pneumatic acceleration inclined plate experimental provision for high-speed shadowgraph technique simulation
It is intended to.
A kind of Pneumatic acceleration inclined plate experimental provision for high-speed shadowgraph technique simulation of the invention includes sloping plate unit, institute
Stating sloping plate unit includes the fixed bracket 209 of inclined plate, as shown in Fig. 2, being equipped with inclined plate on the fixed bracket 209 of inclined plate, inclined plate includes
Inclined plate bottom frame 206 and inclined plate panel 207, inclined plate bottom frame 206 and inclined plate panel 207 connect by the way that bolt 205 and nut 204 are fixed
It connects；Inclined plate lower end is abutted with bottom plate, and bottom plate includes bottom plate plate face 201 and bottom plate bottom frame 202, is provided with steel on bottom plate bottom frame 202
Rib 203 processed, so as to preferably load-bearing.Inclined plate is connect with angle adjusting mechanism.
Specifically, angle adjusting mechanism include the angular adjustment bar 212 abutted in the middle part of inclined plate bottom frame 206 and with inclined plate bottom
The high fine-tuning device of portion's clamping.
Further, the fixed 209 two sides center of bracket of inclined plate opens up mounting groove respectively, and mounting groove is in long strip, mounting groove
Width be greater than the diameter of bolt of angle adjustable bolt 213,212 two sides of angular adjustment bar are passed through by angle adjustable bolt 213
The mounting groove of fixed 209 two sides channel steel of bracket, and it is fixed with angular adjustment nut 214；Pacified by changing angular adjustment bar 212
Mounting height on tankage, since inclined plate bottom is abutted with bottom plate and is fixed in position, so that the tilt angle of inclined plate
Change.
High fine-tuning device includes the micro actuator pedestal 218 for being symmetrically arranged with two sides below inclined plate, is welded on micro actuator pedestal 218
It is connected to stay bolt 216, truss 215 is socketed on stay bolt 216, interconnecting piece is provided with stay bolt matching nut 217, truss 215
It is abutted with the bottom of inclined plate bottom frame 202, the fastener 219 abutted with inclined plate side is provided on truss 215；By adjusting stay bolt
The position of nut 217 is matched, the adjusting to 215 height of truss is realized, to be finely adjusted to the angle of inclined plate lower part.
Preferably, inclined plate two sides are symmetrically arranged with hollow ring 208, and the top of the fixed bracket 209 of inclined plate passes through pulley
Hook 211 is equipped with pulley hoisting device 210, and pulley hoisting device 210 is connect by rope with hollow ring 208.When needs pass through
When angular adjustment bar 212 adjusts inclined plate inclination angle, inclined plate is lifted by pulley hoisting device 210, is adjusted with facilitating.
Material release device is installed, as shown in figure 4, material release device includes guide rail 402, on guide rail 402 on inclined plate
Material box 401 is installed, 401 lower end of material box is provided with the sliding block 403 cooperated with guide rail 402, and material box 401 is towards bottom plate
One side opening, side of the material box 401 far from bottom plate connect with Pneumatic acceleration device.
Specifically, the two sides of the adjacent openings one side of material box 401 are symmetrically installed with L-type steel plate 405, L-type steel plate 405
Lower end is set to 401 two sides of material box, the upper end of L-type steel plate 405 and solid-iron by installation bolt 406 and installation nut 407
Column 409 is hinged, and 409 lower part of iron solid pillar is provided with front side baffle 404.
The top front end of L-type steel plate 405 and the middle part of front side baffle 404 are respectively arranged with fixed ring 408, and the same side is consolidated
Determine to be connected with each other between ring 408 by spring 410；When current side baffle 404 is closed, spring 410 is in tensional state.
The two sides of front side baffle 404 extend outwardly, and the two sides of material box 401 are provided with pastes with 404 extension of front side baffle
The electromagnet 411 of conjunction.Under energized state, front side baffle 404 is sucked electromagnet 411, thus by experimental material indwelling in material
In box 401；After power-off, front side baffle 404 is under the draw of spring 410, pull-up backward, thus release experiment material.
It is provided on inclined plate to photoelectric sensor 412 is penetrated, includes receiver, 413 and of relay to photoelectric sensor 412 is penetrated
Transmitter, transmitter and receiver are respectively arranged at 402 lowest positions of adjacent rail, and the spacing of transmitter and receiver
Greater than the width of material box 401.The side of guide rail 402 is provided with power switch 414, and power switch 414 is respectively and to penetrating photoelectricity
Sensor 412, electromagnet 411 are electrically connected.
As shown in figure 3, Pneumatic acceleration device includes the high-speed cylinder 301 being fixedly connected with 401 side wall of material box, high speed gas
Cylinder 301 is fixedly installed in inclined plate plate face 207, and is connect by snorkel 305 with air accumulator 303, is provided on air accumulator 303
Air compressor 301.Pneumatic three element is respectively arranged on air compressor 301 and air accumulator 303.It is arranged on snorkel 305
There is switch valve 304.
Here is the working principle explanation of Pneumatic acceleration experimental provision provided by the invention:
By adjusting the height of angular adjustment bar 212 and the height of truss 215, make sloping plate unit in the angle of setting；So
It is inflated afterwards by the air compressor 301 in Pneumatic acceleration device to air accumulator 303, when the instrument on air accumulator 303 is shown as
When setting pressure, valve 304 is turned on the switch, the piston rod of high-speed cylinder 306 is made to travel forward under gas pressure, piston rod pushes
Material box 401 is glided with the speed of setting along guide rail 402, and the initial velocity of downslide is by the inclination angle of sloping plate unit and determining for being discharged
It measures gas pressure to codetermine, therefore the movement initial velocity of experimental material can be precisely controlled.
Experimental material is placed within material box 401, and is moved with the movement of material box 401, to penetrating photoelectric sensing
Device 412 is placed on the front end two sides that material box 401 can reach, when to penetrate 412 transmitter of photoelectric sensor and receiver it
Between without any barrier when, at normal closure state.
To penetrate photoelectric sensor 412 control electromagnet 411 switch, 411 normal power-up of closed state lower electromagnet, tightly
Front side baffle 404 is sucked, the spring 410 connected between front side baffle 404 and L-type steel plate 405 is in tensional state.
When material box 401 moves to 402 front end of guide rail, hinder to penetrating 412 transmitter of photoelectric sensor and receiver
Between channel, circuit disconnects, and electromagnet 411 stops working, the spring connected between front side baffle 404 and L-type steel plate 405
410 are able to revert to free state, and front side baffle 404 is driven quickly to open, thus experimental material under the conditions of high-speed motion from
Dynamic release.Experimental material is fallen on bottom plate from inclined plate, the landslide Structure Phenomenon after sliding failure is fully retained, to guarantee
The accuracy of experiment.
A specific embodiment of the invention is described above, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
Claims (10)
1. a kind of Pneumatic acceleration inclined plate experimental provision for high-speed shadowgraph technique simulation, which is characterized in that including sloping plate unit,
The sloping plate unit includes the fixed bracket of inclined plate, is equipped with inclined plate on the fixed bracket of inclined plate, inclined plate lower end is abutted with bottom plate, inclined plate
It is connect with angle adjusting mechanism；Material release device is installed, the material release device includes guide rail, the guide rail on inclined plate
On material box is installed, towards a side opening of bottom plate, side of the material box far from bottom plate and Pneumatic acceleration fill the material box
It sets and connects；The Pneumatic acceleration device includes the high-speed cylinder being fixedly connected with material box side wall, and high-speed cylinder passes through snorkel
It is connect with air accumulator, air compressor is provided on air accumulator.
2. the Pneumatic acceleration inclined plate experimental provision according to claim 1 for high-speed shadowgraph technique simulation, feature exist
In the inclined plate two sides are symmetrically arranged with hollow ring, and the support bracket fastened top of inclined plate is provided with pulley hoisting device, institute
Pulley hoisting device is stated to connect by rope with hollow ring.
3. the Pneumatic acceleration inclined plate experimental provision according to claim 1 for high-speed shadowgraph technique simulation, feature exist
In the angle adjusting mechanism includes the high fine-tuning with the angular adjustment bar abutted in the middle part of inclined plate and with the clamping of inclined plate bottom
Device.
4. the Pneumatic acceleration inclined plate experimental provision according to claim 3 for high-speed shadowgraph technique simulation, feature exist
In the high fine-tuning device includes the micro actuator pedestal for being symmetrically arranged with two sides below inclined plate, is provided with length on micro actuator pedestal
Bolt is socketed with truss on stay bolt, and the truss is abutted with inclined plate bottom, and the card abutted with inclined plate side is provided on truss
Part.
5. the Pneumatic acceleration inclined plate experimental provision according to claim 1 for high-speed shadowgraph technique simulation, feature exist
In the two sides of the adjacent openings one side of the material box are symmetrically installed with L-type steel plate, and the upper end of L steel plate and iron solid pillar are cut with scissors
It connects, iron solid pillar lower part is provided with front side baffle.
6. the Pneumatic acceleration inclined plate experimental provision according to claim 5 for high-speed shadowgraph technique simulation, feature exist
In being respectively arranged with fixed ring in the middle part of the top front end of the two sides L-type steel plate and front side baffle, adjacent fixation interannular is logical
Cross spring interconnection.
7. the Pneumatic acceleration inclined plate experimental provision according to claim 6 for high-speed shadowgraph technique simulation, feature exist
In the two sides of the front side baffle extend outwardly, and the two sides of the material box are provided with the electricity being bonded with front side baffle extension
Magnet.
8. the Pneumatic acceleration inclined plate experimental provision according to claim 1 for high-speed shadowgraph technique simulation, feature exist
In being provided on the inclined plate to photoelectric sensor is penetrated, it includes receiver, relay and transmitting that described pair, which is penetrated photoelectric sensor,
Device, the transmitter and receiver are respectively arranged at adjacent rail lowest positions, and the spacing of transmitter and receiver is big
In the width of material box.
9. the Pneumatic acceleration inclined plate experimental provision according to claim 8 for high-speed shadowgraph technique simulation, feature exist
, the side of the guide rail is provided with power switch, the power switch respectively with to penetrate photoelectric sensor, electromagnet is electrically connected
It connects.
10. the Pneumatic acceleration inclined plate experimental provision according to claim 1 for high-speed shadowgraph technique simulation, feature exist
In being provided with switch valve on the snorkel.
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| CN201910352899.6A CN109991393B (en) | 2019-04-29 | 2019-04-29 | Pneumatic acceleration inclined plate experimental device for high-speed remote landslide simulation |
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|---|---|---|---|
| CN201910352899.6A CN109991393B (en) | 2019-04-29 | 2019-04-29 | Pneumatic acceleration inclined plate experimental device for high-speed remote landslide simulation |
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| CN109991393B CN109991393B (en) | 2024-02-06 |
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Cited By (3)
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| CN114486171A (en) * | 2022-01-28 | 2022-05-13 | 河海大学 | Three-dimensional landslide surge test normal physical model for river channel type reservoir |
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