CN204461350U - A kind of similarity simulation experiment goaf top plate inbreak monitoring system - Google Patents
A kind of similarity simulation experiment goaf top plate inbreak monitoring system Download PDFInfo
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- CN204461350U CN204461350U CN201520053583.4U CN201520053583U CN204461350U CN 204461350 U CN204461350 U CN 204461350U CN 201520053583 U CN201520053583 U CN 201520053583U CN 204461350 U CN204461350 U CN 204461350U
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Abstract
A kind of similarity simulation experiment goaf top plate inbreak monitoring system, comprises similarity simulation experiment platform, pressure pin, support, laser beam emitting device, optical lever reflection unit, display screen, data acquisition unit and computing machine.Described similarity simulation experiment platform comprises model and lays framework, simulation coal rock layer and coal face; Goaf top plate bottom is close to by described pressure pin; Described support is the framework be made up of rack beam and support vertical beam; Described laser beam emitting device launches sectored light in horizontal direction to optical lever reflection unit; Described optical lever reflection unit is fixed on pressure pin one end, can by the laser reflection that receives on display screen; Described display screen spreads all over photoelectric sensor, and the electric signal of conversion is sent to computing machine by data acquisition unit by described photoelectric sensor.The utility model is reasonable in design, easy and simple to handle, and degree of accuracy is high, can show, record time and the deflection of current goaf top plate inbreak generation in real time, have good monitoring effect.
Description
Technical field
The utility model relates to similarity simulation experiment monitoring technical field, particularly relates to a kind of similarity simulation experiment goaf top plate inbreak monitoring system.
Background technology
In coal production process, the air-shock wave that goaf top plate unstable fracture, inbreak cause, to the plant equipment of down-hole and operating personnel very harmful.Therefore, the mechanics of monitoring goaf top plate becomes the research emphasis of coal mine production safety item.Except theoretical analysis, field observation, similarity simulation experiment is also a kind of strong scientific research means, and the phenomenon that occurs on model can be utilized to infer contingent strata pressure laws in prototype, thus provides prediction for field practice.
At present, the method measuring goaf top plate displacement in similarity simulation experiment with photographic process and strain gauge method in the majority.Photographic process arranges scale in model framework surrounding, fixes mark simultaneously, repeatedly take pictures in experimentation to model entirety on coal rock layer, and experiment terminates the rear change in displacement calculating mark according to ratio.Strain gauge method is, laying model while, foil gauge is imbedded monitoring point, and the stress-strain relation that in experimentation, monitoring point to be in elastic-plastic phase by circuit by foil gauge is imported in computing machine, to carry out post analysis.But photographic process cannot measure small deformation heterogeneous, monitoring result can not be shown in real time, and later stage calculating is consuming time, degree of accuracy is poor; The running program of strain gauge method is strictly loaded down with trivial details, cannot obtain the stress-strain relation after fracturation, also cannot displacement monitoring and temporal information.
Utility model content
The purpose of this utility model is to provide a kind of similarity simulation experiment goaf top plate inbreak monitoring system, in order to solve Problems existing in background technology.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of similarity simulation experiment goaf top plate inbreak monitoring system, comprises similarity simulation experiment platform, pressure pin, support, laser beam emitting device, optical lever reflection unit, display screen, data acquisition unit and computing machine.Described similarity simulation experiment platform comprises model and lays framework, simulation coal rock layer and coal face; Goaf top plate bottom is close to by described pressure pin; Described support is the framework be made up of rack beam and support vertical beam; Described laser beam emitting device launches sectored light in horizontal direction to optical lever reflection unit; Described optical lever reflection unit is fixed on pressure pin one end, can by the laser reflection that receives on display screen; Described display screen spreads all over photoelectric sensor, and the electric signal of conversion is sent to computing machine by data acquisition unit by described photoelectric sensor.
As preferably, described pressure pin has several, and every root pressure pin two ends are respectively equipped with horizontal bush and orthogonal sleeve; Horizontal bush is located at the pressure pin one end near display screen side, is placed on rack beam; Orthogonal sleeve is located at the pressure pin one end away from display screen side, is placed on support vertical beam.
Further, described horizontal bush is nonmagnetic sleeve, and pressure pin can be that fulcrum makes Plane Rotation with horizontal bush; Described orthogonal sleeve is the sleeve that is magnetic, and can move up and down and be magneted on vertical beam.
Further, the number of the described support vertical beam away from display screen side is all identical with the number of optical lever reflection unit, orthogonal sleeve.
As preferably, on one end of display screen side, arrange optical lever reflection unit at each pressure pin, many pressure pins are arranged multiple optical lever reflection unit.
The beneficial effect of employing technique scheme is:
Technical solutions of the utility model adopt a kind of similarity simulation experiment goaf top plate inbreak monitoring system, be reflected on display screen by the rotation of optical lever reflection unit by the change of laser, finally machine program obtains goaf top plate displacement over time as calculated.The utility model is reasonable in design, easy and simple to handle, and degree of accuracy is high, can show, record time and the deflection of current goaf top plate inbreak generation in real time, have good monitoring effect.
Accompanying drawing explanation
The structural representation of a kind of similarity simulation experiment goaf top plate inbreak monitoring system that Fig. 1 provides for the utility model embodiment;
Connection diagram between the support that Fig. 2 provides for the utility model embodiment and pressure pin;
The sectional view of the horizontal bush that Fig. 3 provides for the utility model embodiment;
The sectional view of the orthogonal sleeve that Fig. 4 provides for the utility model embodiment;
In figure: 1, similarity simulation experiment platform; 2, optical lever reflection unit; 3, horizontal bush; 4, laser beam emitting device; 5, photoelectric sensor; 6, display screen; 7, data acquisition unit; 8, computing machine; 9, support; 10, orthogonal sleeve; 11, pressure pin.
Embodiment
For making the purpose of this utility model, feature and advantage definitely, below in conjunction with drawings and Examples, a kind of similarity simulation experiment goaf top plate inbreak monitoring system that the utility model provides is described in detail.
As shown in Figure 1, a kind of similarity simulation experiment goaf top plate inbreak monitoring system, comprises similarity simulation experiment platform 1, pressure pin 11, support 9, laser beam emitting device 4, optical lever reflection unit 2, display screen 6, data acquisition unit 7 and computing machine 8.Described similarity simulation experiment platform 1 comprises model and lays framework, simulation coal rock layer and coal face; Goaf top plate bottom is close to by described pressure pin 11; Described support 9 is the frameworks be made up of rack beam and support vertical beam; Described laser beam emitting device 4 launches sectored light in horizontal direction to optical lever reflection unit 2; Described optical lever reflection unit 2 is fixed on pressure pin 11 one end, can by the laser reflection that receives on display screen 6; Described display screen 6 spreads all over photoelectric sensor 5, and the electric signal of conversion is sent to computing machine 8 by data acquisition unit 7 by described photoelectric sensor 5.
Described laser beam emitting device 4, optical lever reflection unit 2, data acquisition unit 7, computing machine 8 etc. are equipment of the prior art, and the utility model is only they used and combine, and repeats no more it.
As shown in Figure 2,3, 4, in the utility model, described pressure pin 11 has several, and every root pressure pin 11 two ends are respectively equipped with horizontal bush 3 and orthogonal sleeve 10.Described horizontal bush 3 is nonmagnetic sleeve, and pressure pin 11 can with horizontal bush 3 for fulcrum makes Plane Rotation; Described orthogonal sleeve 10 is the sleeve that is magnetic, and can move up and down and be magneted on vertical beam.Horizontal bush 3 is located at and pressure pin 11 one end near display screen 6 side, is placed on rack beam; Orthogonal sleeve 10 is located at pressure pin 11 one end away from display screen 6 side, is placed on support vertical beam, and the number of this side stand vertical beam is all identical with the number of optical lever reflection unit 2, orthogonal sleeve 10.On one end of display screen 6 side, arrange optical lever reflection unit 2 at each pressure pin 11, multiple optical lever reflection unit 2 arranged by many pressure pins 11.
Embodiment of the present utility model is as follows:
On similarity simulation experiment platform, scale model is laid, this goaf top plate inbreak monitoring system of installation check according to coal mining geology condition.When coal seam is excavated, goaf top plate bottom is close to by pressure pin, and sink along with the unstability inbreak of top board, now also drive pressure pin horizontal bush end to be rotated down around rack beam fulcrum, finally made optical lever reflex to laser route on display screen and angle changes.Display screen is provided with photoelectric sensor, and photoelectric sensor is used for receiving reflected light, then the laser signal received is converted into electric signal, is sent to computing machine by data acquisition unit, now the signal that transmitted by which block photoelectric sensor of computer recording.According to the change of different photoelectric sensor positional information in display screen coordinate axis, and the computer program relying on principle of reflection to write, just the data message collected can be depicted as displacement and time relationship chart, just can show in real time, record this similarity simulation experiment goaf top plate inbreak information.
The above, be only the schematic embodiment of the utility model, not limits it.This instructions preferred embodiment just sets forth core concept of the present utility model and technical scheme for helping, thus makes one of ordinary skill in the art utilize the utility model better.The utility model is only subject to the restriction of claims and four corner and equivalent, and every insubstantial made according to the utility model is replaced, is out of shape and improved, and is all included within protection domain of the present utility model.
Claims (5)
1. a similarity simulation experiment goaf top plate inbreak monitoring system, it is characterized in that, comprise similarity simulation experiment platform (1), pressure pin (11), support (9), laser beam emitting device (4), optical lever reflection unit (2), display screen (6), data acquisition unit (7) and computing machine (8); Described similarity simulation experiment platform (1) comprises model and lays framework, simulation coal rock layer and coal face; Goaf top plate bottom is close to by described pressure pin (11); Described support (9) is the framework be made up of rack beam and support vertical beam; Described laser beam emitting device (4) launches sectored light in horizontal direction to optical lever reflection unit (2); Described optical lever reflection unit (2) is fixed on pressure pin (11) one end, can by the laser reflection that receives on display screen (6); Described display screen (6) spreads all over photoelectric sensor (5), the electric signal of conversion is sent to computing machine (8) by data acquisition unit (7) by described photoelectric sensor (5).
2. a kind of similarity simulation experiment goaf top plate inbreak monitoring system according to claim 1, it is characterized in that, described pressure pin (11) has several, and every root pressure pin (11) two ends are respectively equipped with horizontal bush (3) and orthogonal sleeve (10); Horizontal bush (3) is located at pressure pin (11) one end near display screen (6) side, is placed on rack beam; Orthogonal sleeve (10) is located at pressure pin (11) one end away from display screen (6) side, is placed on support vertical beam.
3. a kind of similarity simulation experiment goaf top plate inbreak monitoring system according to claim 2, it is characterized in that, described horizontal bush (3) is nonmagnetic sleeve, and pressure pin (11) can with horizontal bush (3) for fulcrum makes Plane Rotation; Described orthogonal sleeve (10) is the sleeve that is magnetic, and can move up and down and be magneted on vertical beam.
4. a kind of similarity simulation experiment goaf top plate inbreak monitoring system according to claim 2, it is characterized in that, the number of the described support vertical beam away from display screen (6) side is all identical with the number of optical lever reflection unit (2), orthogonal sleeve (10).
5. a kind of similarity simulation experiment goaf top plate inbreak monitoring system according to claim 1 and 2, it is characterized in that, on one end of display screen (6) side, optical lever reflection unit (2) is arranged, the many multiple optical lever reflection units (2) of the upper layout of pressure pin (11) at each pressure pin (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053583.4U CN204461350U (en) | 2015-01-26 | 2015-01-26 | A kind of similarity simulation experiment goaf top plate inbreak monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520053583.4U CN204461350U (en) | 2015-01-26 | 2015-01-26 | A kind of similarity simulation experiment goaf top plate inbreak monitoring system |
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| CN204461350U true CN204461350U (en) | 2015-07-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290016A (en) * | 2016-10-25 | 2017-01-04 | 安徽理工大学 | A kind of underground air impact disaster assay device |
| CN107167574A (en) * | 2016-03-08 | 2017-09-15 | 河南理工大学 | A kind of new mining analog simulation model layer position feature display device |
-
2015
- 2015-01-26 CN CN201520053583.4U patent/CN204461350U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167574A (en) * | 2016-03-08 | 2017-09-15 | 河南理工大学 | A kind of new mining analog simulation model layer position feature display device |
| CN106290016A (en) * | 2016-10-25 | 2017-01-04 | 安徽理工大学 | A kind of underground air impact disaster assay device |
| CN106290016B (en) * | 2016-10-25 | 2018-11-20 | 安徽理工大学 | A kind of underground air impact disaster experimental rig |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20170126 |