CN105627930A - Displacement monitoring instrument for separation layer of surrounding rock - Google Patents
Displacement monitoring instrument for separation layer of surrounding rock Download PDFInfo
- Publication number
- CN105627930A CN105627930A CN201511021834.1A CN201511021834A CN105627930A CN 105627930 A CN105627930 A CN 105627930A CN 201511021834 A CN201511021834 A CN 201511021834A CN 105627930 A CN105627930 A CN 105627930A
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- China
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- erecting stage
- guide rail
- separation layer
- anchor pole
- surrounding rock
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a displacement monitoring instrument for a separation layer of surrounding rock. The displacement monitoring instrument comprises a housing and an anchor pole. A guide rail is arranged in the housing; a first mounting platform and a second mounting platform are installed on the guide rail; the second mounting platform is fixed on the guide rail and the first mounting platform can slide along the axis of the guide rail; and a first reflection mirror is arranged on the first mounting platform and a light splitter, a laser, a second reflection mirror, and a photodetector are arranged on the second mounting platform. An anchor fluke is arranged at the upper end of the anchor pole; a limiting plate is arranged at the external periphery of the anchor pole; a steel wire is arranged in the anchor pole; and the two ends of the steel wire are connected with the anchor fluke and the first mounting platform. According to the displacement monitoring instrument provided by the invention, separation layer displacement is detected by using a Michelson interference method; and a collection unit inputs data obtained by detection into a processing unit for processing. The displacement monitoring instrument has advantages of high measurement precision, high automation degree, and simple and convenient operation; and real-time monitoring can be realized.
Description
Technical field
The invention belongs to surrounding rock separation layer displacement monitoring technical field under mine, it is specifically related to a kind of surrounding rock separation layer displacement monitor.
Background technology
Country rock refers to the rock mass around digging space, refers to around tunnel in certain limit specifically, and barrel is stablized influential rock mass; Absciss layer then refers to that digging space above adjacent strata produces the phenomenon of separation along bedding face, is exactly briefly being separated from each other between immediate roof and old top.
Under current mine, surrounding bed monitoring equipment mainly adopts surrounding rock separated layer monitoring alarm instrument, Chinese patent literature CN2688894Y (application number is 200420039443.3) discloses one " surrounding rock separated layer monitoring alarm instrument ", this kind of alarm is connected with mechanical hull and casing for electric appliances in fixed tube, two gears in left and right are installed in mechanical hull, two toothed rack engaged with it and return spring, again the thin steel rope of two band claws is separately fixed on tooth bar, strains by return spring and reset. Installation angle sensor in casing for electric appliances, the rotating shaft of angle transducer is plugged on gear shaft, angle transducer wire is connected on signal transmitting device input terminus, and signal transmitting device output terminal is connected on the signal output of housing, it may also be useful to time thin steel rope the other end be fixed in wall rock drill-hole by claw. During surrounding rock separation layer, thin steel rope pulls tooth bar to rotate, thus drives angle transducer to rotate, and exports electric potential signal, send monitoring station to carry out data processing. The deficiency of this kind of alarm is: during installation, two tooth bars are exposed at outside housing, it is easy to collide and damages thus lose alarm function, so being relatively applicable to be arranged on country rock top and not being suitable for and be arranged on country rock both sides, even if when being contained in country rock top, also often encountered with instrument by staff or serviceman, cause damage.
In addition, Chinese patent literature CN102564376B (application number is 201210023709.4) discloses one " surrounding rock separation layer displacement monitor ", the principle of this monitor is when rock stratum has absciss layer to change, 2nd anchor fluke moves up relative to the first housing, thus successively by the 2nd wireline, 2nd slide block, 2nd steel strip driving the 2nd wheeled steel rotates, along with the rotation of the 2nd wheeled steel, make second driving shaft successively, 2nd axle sleeve, the cylindrical detection axis of the 2nd angle sensor device of the 2nd rubber connector and electrical component is together rotated, convert the angular turn signal collected to electrical signal by the 2nd angle sensor device again to be processed by circuit card numerical value SCM system, and show corresponding data information by the liquid-crystal display on circuit card. this monitor and above-mentioned alarm all exist owing to being adopt angle sensor device to carry out displacement monitoring so monitoring accuracy is not high, can not monitor the shortcoming that microbit is moved.
Summary of the invention
It is an object of the invention to solve the problem, it is provided that a kind of surrounding rock separation layer displacement monitor based on Michelson interferometer.
The technical scheme of the present invention is: a kind of surrounding rock separation layer displacement monitor, comprises housing and anchor pole; Guide rail it is provided with in housing, guide rail is provided with the first erecting stage and the 2nd erecting stage, 2nd erecting stage is fixed on guide rail, first erecting stage can slide along rail axis, first erecting stage is provided with the first speculum, 2nd erecting stage is provided with spectroscope, laser apparatus, two-mirror and photodetector, and described spectroscope, laser apparatus, two-mirror and photodetector and the first speculum form Michelson interferometer;
Anchor pole upper end is provided with anchor fluke, and anchor pole excircle is provided with limiting plate, is provided with steel wire in anchor pole, and the two ends of described steel wire are connected with the first erecting stage with anchor fluke respectively.
Preferably, the tie point of described steel wire and the first erecting stage is positioned at the first erecting stage and deviates from the side of the 2nd erecting stage.
Preferably, described photodetector is connected with collecting unit, and collecting unit is connected with processing unit, the data that described processing unit is collected for the treatment of collecting unit.
Preferably, being provided with slide block in described anchor pole, slide block and anchor pole inwall are slidably connected, and steel wire is arranged in slide block and is fixedly connected with slide block.
Preferably, the quantity of described guide rail is two, and parallel distribution.
Preferably, described first erecting stage is flexibly connected with guide rail by slide block.
The invention has the beneficial effects as follows: surrounding rock separation layer displacement monitor provided by the present invention, bed separation displacement is detected by michelson interferometry, photodetector obtains measuring result, provide precision guarantee, collecting unit processes in the data input reason unit recorded, and has measuring accuracy height, level of automation height, the advantage such as easy and simple to handle, and Real-Time Monitoring can be accomplished.
Accompanying drawing explanation
Fig. 1 is the structural representation of surrounding rock separation layer displacement monitor of the present invention;
Fig. 2 is the schematic diagram of Michelson interferometer of the present invention.
Description of reference numerals: 1, housing; 2, anchor pole; 3, guide rail; 4, the first erecting stage; 5, the 2nd erecting stage; 6, the first speculum; 7, spectroscope; 8, laser apparatus; 9, two-mirror; 10, photodetector; 11, anchor fluke; 12, limiting plate; 13, steel wire; 14, preset pieces; 15, pulley.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described further:
As depicted in figs. 1 and 2, the surrounding rock separation layer displacement monitor of the present invention, comprises housing 1 and anchor pole 2; The guide rail 3 of two parallel distributions it is provided with in housing 1, guide rail 3 is provided with the first erecting stage 4 and the 2nd erecting stage 5,2nd erecting stage 5 is fixed on guide rail, first erecting stage 4 is flexibly connected with guide rail 3 by slide block, thus can along guide rail 3 axial sliding movement, first erecting stage 4 is provided with the first speculum 6,2nd erecting stage 5 is provided with spectroscope 7, laser apparatus 8, two-mirror 9 and photodetector 10, and above-mentioned spectroscope 7, laser apparatus 8, two-mirror 9 and photodetector 10 and the first speculum 6 form Michelson interferometer; Photodetector 10 is connected with collecting unit, and collecting unit is connected with processing unit, the data that processing unit is collected for the treatment of collecting unit.
Anchor pole 2 upper end is provided with anchor fluke 11, and anchor pole 2 excircle is provided with limiting plate 12, is provided with steel wire 13 in anchor pole 2, and the two ends of steel wire 13 are connected with the first erecting stage 4 with anchor fluke 11 respectively; As shown in Figure 1, in the present embodiment, two guide rails 3 are horizontally disposed, and the path of steel wire 13 is provided with some pulleys 15 so that the tie point of steel wire 13 and the first erecting stage 4 is positioned at the first erecting stage 4 to deviate from the side of the 2nd erecting stage 5. Being provided with preset pieces 14 in anchor pole 2, preset pieces 14 and anchor pole 2 inwall are slidably connected, and steel wire 13 is arranged in preset pieces 14 and is fixedly connected with preset pieces 14, and preset pieces 14 is for carrying out spacing to steel wire 13, it is to increase the precision of bed separation displacement monitoring.
Open laser apparatus 8, adjusting the starting position of the first erecting stage 4, the laser beam that laser apparatus 8 penetrates becomes two-beam through spectroscope 7, and this two-beam meets coherent condition, meet at through two-mirror 9 and the first speculum 6 respectively and photodetector 10 is formed bright spot, and make bright spot placed in the middle, while meeting above-mentioned interference phenomenon, anchor fluke 11 is fixed in rock stratum, limiting plate 12 is fixed on rock stratum roof plate, when having absciss layer to change in anchor fluke 11 scope, top board moves down, limiting plate 12 is to lower stress, in order to maintain balance, steel wire 13 is stretched, thus affect the first erecting stage 4 to move on guides 3, interference light is changed, thus the first speculum 6 and two-mirror 9 meet at the change of the intensity generation light and shade of the bright spot of formation on photodetector 10, in this process, the interference waveform of light is passed through collecting unit input processing unit by photodetector 10, processing unit can calculate bed separation displacement �� L according to following formula:
�� L=2 �� N* ��,
Wherein, �� N is number through crest (or trough) in interference waveform figure, is drawn by the interference waveform of light by photodetector 10; �� is the wavelength of incident laser, and the size of this value is only relevant with the selection of laser apparatus 8.
It should be noted that, in real work, guide rail 3 also can vertically be arranged, and makes the first erecting stage 4 be positioned at the 2nd erecting stage 5, utilizes above-mentioned principle of work also can calculate bed separation displacement �� L.
Laser all to be expanded by conventional Michelson interferometer, this allows reading (to be counted out the number of ring occurring or disappearing) very inconvenience (can not have any vibration interference in counting process), and this method laser is without expanding, the intensity of interference light measured by direct photodetector, therefore makes reading process greatly simplify. By Michelson interferometer, surrounding rock separation layer displacement is measured in real time, micron shift length even nanometer can be measured, it is achieved the precisely object of detection bed separation displacement.
The those of ordinary skill of this area, it will be appreciated that embodiment described here is the principle in order to help reader understanding the present invention, should be understood to that protection scope of the present invention is not limited to such special statement and embodiment. The those of ordinary skill of this area can make various other various concrete distortion and combination of not departing from essence of the present invention according to these technology disclosed by the invention enlightenment, and these distortion and combination are still in protection scope of the present invention.
Claims (6)
1. a surrounding rock separation layer displacement monitor, it is characterised in that: comprise housing (1) and anchor pole (2), guide rail (3) it is provided with in housing (1), guide rail (3) is provided with the first erecting stage (4) and the 2nd erecting stage (5), 2nd erecting stage (5) is fixed on guide rail, first erecting stage (4) can along guide rail (3) axial sliding movement, first erecting stage (4) is provided with the first speculum (6), 2nd erecting stage (5) is provided with spectroscope (7), laser apparatus (8), two-mirror (9) and photodetector (10), described spectroscope (7), laser apparatus (8), two-mirror (9) and photodetector (10) and the first speculum (6) form Michelson interferometer,
Anchor pole (2) upper end is provided with anchor fluke (11), anchor pole (2) excircle is provided with limiting plate (12), being provided with steel wire (13) in anchor pole (2), the two ends of described steel wire (13) are connected with the first erecting stage (4) with anchor fluke (11) respectively.
2. surrounding rock separation layer displacement monitor according to claim 1, it is characterised in that: the tie point of described steel wire (13) and the first erecting stage (4) is positioned at the first erecting stage (4) to deviate from the side of the 2nd erecting stage (5).
3. surrounding rock separation layer displacement monitor according to claim 1, it is characterised in that: described photodetector (10) is connected with collecting unit, and collecting unit is connected with processing unit, the data that described processing unit is collected for the treatment of collecting unit.
4. surrounding rock separation layer displacement monitor according to claim 1, it is characterized in that: in described anchor pole (2), be provided with preset pieces (14), preset pieces (14) and anchor pole (2) inwall are slidably connected, and steel wire (13) is arranged in preset pieces (14) and is fixedly connected with preset pieces (14).
5. surrounding rock separation layer displacement monitor according to claim 1, it is characterised in that: the quantity of described guide rail (3) is two, and parallel distribution.
6. surrounding rock separation layer displacement monitor according to claim 1, it is characterised in that: described first erecting stage (4) is flexibly connected with guide rail (3) by slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021834.1A CN105627930A (en) | 2015-12-30 | 2015-12-30 | Displacement monitoring instrument for separation layer of surrounding rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021834.1A CN105627930A (en) | 2015-12-30 | 2015-12-30 | Displacement monitoring instrument for separation layer of surrounding rock |
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| Publication Number | Publication Date |
|---|---|
| CN105627930A true CN105627930A (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511021834.1A Pending CN105627930A (en) | 2015-12-30 | 2015-12-30 | Displacement monitoring instrument for separation layer of surrounding rock |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228655A (en) * | 2017-06-16 | 2017-10-03 | 山东大学 | A kind of tunnel danger stone real-time displacement monitoring system and method for considering rotation effect |
| CN108426517A (en) * | 2018-03-23 | 2018-08-21 | 中国科学院武汉岩土力学研究所 | A kind of country rock radial displacement measuring device |
| CN108917634A (en) * | 2018-06-08 | 2018-11-30 | 山东安达尔信息科技有限公司 | A kind of laser rock mass measuring device of recoverable |
| CN111113550A (en) * | 2019-12-12 | 2020-05-08 | 奥士康科技股份有限公司 | PCB board drilling machine calibration positioner |
| CN113155069A (en) * | 2021-03-15 | 2021-07-23 | 中煤科工开采研究院有限公司 | Mine roof separation layer measuring device and measuring method thereof |
| CN116295190A (en) * | 2023-05-17 | 2023-06-23 | 中矿众合(河北)矿山科技有限公司 | Surrounding rock moving real-time observation sensor |
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| CN2688894Y (en) * | 2004-03-22 | 2005-03-30 | 泰安市龙洛卡自动化仪表有限公司 | Surrounding rock separated layer monitoring alarm instrument |
| CN101004139A (en) * | 2007-01-17 | 2007-07-25 | 山东省尤洛卡自动化仪表有限公司 | Surrounding rock, bed separation monitor with multiple azimuths and double functions |
| CN200950047Y (en) * | 2006-09-26 | 2007-09-19 | 中国矿业大学 | Multi-point direct-reading displacement gage capable of connecting barrel type measuring unit |
| CN201251534Y (en) * | 2008-08-08 | 2009-06-03 | 方运良 | Michelson comprehensive experimental instrument |
| CN202215299U (en) * | 2011-08-29 | 2012-05-09 | 泰安思科赛德电子科技有限公司 | Internet of things wireless transmission type surrounding rock mobile sensor used under coal mine shaft |
| CN202582514U (en) * | 2012-02-03 | 2012-12-05 | 天地（常州）自动化股份有限公司 | Surrounding rock bed separation displacement monitor |
| CN103308004A (en) * | 2013-06-09 | 2013-09-18 | 北京市普锐科创科技有限责任公司 | Laser straightness and displacement measuring device |
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2015
- 2015-12-30 CN CN201511021834.1A patent/CN105627930A/en active Pending
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| CN2688894Y (en) * | 2004-03-22 | 2005-03-30 | 泰安市龙洛卡自动化仪表有限公司 | Surrounding rock separated layer monitoring alarm instrument |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228655A (en) * | 2017-06-16 | 2017-10-03 | 山东大学 | A kind of tunnel danger stone real-time displacement monitoring system and method for considering rotation effect |
| CN107228655B (en) * | 2017-06-16 | 2019-06-14 | 山东大学 | A kind of tunnel danger stone real-time displacement monitoring system and method considering rotation effect |
| CN108426517A (en) * | 2018-03-23 | 2018-08-21 | 中国科学院武汉岩土力学研究所 | A kind of country rock radial displacement measuring device |
| CN108917634A (en) * | 2018-06-08 | 2018-11-30 | 山东安达尔信息科技有限公司 | A kind of laser rock mass measuring device of recoverable |
| CN111113550A (en) * | 2019-12-12 | 2020-05-08 | 奥士康科技股份有限公司 | PCB board drilling machine calibration positioner |
| CN113155069A (en) * | 2021-03-15 | 2021-07-23 | 中煤科工开采研究院有限公司 | Mine roof separation layer measuring device and measuring method thereof |
| CN113155069B (en) * | 2021-03-15 | 2022-10-11 | 中煤科工开采研究院有限公司 | Mine roof separation layer measuring device and measuring method thereof |
| CN116295190A (en) * | 2023-05-17 | 2023-06-23 | 中矿众合(河北)矿山科技有限公司 | Surrounding rock moving real-time observation sensor |
| CN116295190B (en) * | 2023-05-17 | 2023-08-04 | 中矿众合(河北)矿山科技有限公司 | Surrounding rock moving real-time observation sensor |
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Application publication date: 20160601 |