CN1828220A - Bed separation displacement monitor - Google Patents
Bed separation displacement monitor Download PDFInfo
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- CN1828220A CN1828220A CN 200610057248 CN200610057248A CN1828220A CN 1828220 A CN1828220 A CN 1828220A CN 200610057248 CN200610057248 CN 200610057248 CN 200610057248 A CN200610057248 A CN 200610057248A CN 1828220 A CN1828220 A CN 1828220A
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- bed separation
- displacement
- separation displacement
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Abstract
The invention comprises: a displacement sensor fixed on shell, an information acquisition and processing unit with the input port composed by modules of SCM, display, voice-light alarm, pressure-voltage conversion, 485 communication and power conversion; a displacement conversion wheel with one tensile line wound on its slot, a transparent drum linked a grating ring with a luminotron and a small grating plate with a photosensitive tube on bottom. Wherein, fixing the monitor and tensile line on outside/inside rock stratum respectively, converting the straight displacement of tensile line into the rotation of grating, real-time measuring the displacement between rock stratums by measuring the interference fringe produced by relative movement of two gratings to calculate the displacement variance ratio. This invention has wide application.
Description
Technical field
The present invention relates to a kind of stratum section survey instrument, particularly relate to a kind of bed separation displacement monitor that can measure displacement between the rock stratum.
Background technology
At present, the sensor kind that detects displacement in the engineering is more, differ from one another, its scope of application is respectively arranged, but, to building, water conservancy, road, rock mass in the exploitation in mine and the underground works, the automatic displace monitor of inside, rock stratum, tunnel and the instrument of forecast are rare, especially to high precision, the real-time automatic monitoring of big displacement almost is blank, for example, the impulsion pressure that the sudden change of roadway surrounding rock internal pressure causes in coal mining, digging is to top, tunnel (end) plate during the coal back production, rock stratum internal displacements such as coal column change the roof fall that causes, end distension, the security incident that rock burst etc. cause.So far still lack reliably, can real-time automatic monitoring and the instrument of forecast, especially in coal mining, still lack and realize on the ground continual real-time automatic monitoring of underworkings displacement and forecast.
Summary of the invention
For remedying above-mentioned deficiency, the invention provides a kind of bed separation displacement monitor that can accurately measure displacement and velocity of displacement between the interior layer of rock stratum.
A kind of bed separation displacement monitor, comprise housing, bed separation displacement sensor unit and information acquisition processing unit, described bed separation displacement sensor unit is a perpendicular supporting station on back up pad, establish a locating shaft thereon, on this axle, establish displacement conversion wheel, one side of this displacement conversion wheel connects a transparent cylinder, the grating ring is arranged on this transparent cylinder, below this grating ring, be close to and establish a little original screen panel that is fixed on the described back up pad, setting is fixed on the luminotron on the described back up pad by support in described grating ring, the corresponding photosensitive tube of establishing under described little original screen panel, described bed separation displacement sensor unit is fixed on the described housing by described back up pad, a line of pull that is added with pretension is introduced from the top of housing, at least pass around the bottom of a circle back from housing on the wire casing on the described displacement conversion wheel, described luminotron connects power supply, and the output terminal of described photosensitive tube connects the input end of described information acquisition processing unit.
Bed separation displacement monitor of the present invention, in the described information acquisition processing unit single chip control module is arranged, at least one road, its input port, the output terminal that connects described photosensitive tube, the output of described single chip control module connects display module, audible and visible alarm module, voltage-frequency modular converter and 485 communication modules respectively, described 485 communication modules connect 485 buses, the output of described voltage-frequency modular converter connects 485 buses or establishes an independent output terminal in addition, above-mentioned all modules are installed on the circuit board, provide various required voltage power supplies by a power transfer module.
Bed separation displacement monitor of the present invention, introducing place and the place of passing at described line of pull respectively establish damping clamping plate, described damping clamping plate are made up of the strap and the ambulatory splint that are fixed on the housing, and described two clamping plate connect with holding screw, can regulate clamping plate pressure size.
Bed separation displacement monitor of the present invention, on described displacement conversion wheel, establish two winding slots side by side, described line of pull blocks from the centre, be fixed on behind some circles in this winding slot on any in described winding slot of the lower end of the upper half, the upper end of following half oppositely is fixed in this winding slot behind some circles in another winding slot.
Bed separation displacement monitor of the present invention, at at least two bed separation displacement sensor units of a housing setting, its line of pull is separately introduced from introducing separately, from passing separately, the photosensitive tube of described at least two bed separation displacement sensor units connects the different input ports of described single chip control module.
Bed separation displacement monitor of the present invention, described bed separation displacement sensor unit and information acquisition processing unit can divide and be in two housings.
Bed separation displacement monitor of the present invention, housing is fixed on the appearance rock stratum, line of pull is fixed at least one inner rock stratum, the straight-line displacement of line of pull is become the rotation of grating by the displacement conversion wheel, the metering of the interference fringe that produces by relatively moving between two gratings, can measure the displacement between the rock stratum accurately in real time, the displacement calculating rate of change, and to showing with the scene, in time reporting to the police and long-distance transmission data.Bed separation displacement monitor of the present invention, simple in structure, practical and convenient, accuracy of detection is high, antijamming capability is strong, can be used in colliery, other mine, the underground works rock mass, back, support cylinder etc. being carried out scene and remote real-time automatic monitoring.
Description of drawings
Fig. 1 is first kind of scheme synoptic diagram of bed separation displacement monitor of the present invention;
Fig. 2 is second kind of scheme synoptic diagram of bed separation displacement monitor of the present invention;
Fig. 3 is the third scheme synoptic diagram of bed separation displacement monitor of the present invention;
Fig. 4 is the circuit block diagram of bed separation displacement monitor of the present invention.
Embodiment
For further setting forth the present invention, do more detailed explanation below in conjunction with embodiment.
First kind of scheme of bed separation displacement monitor of the present invention, comprise bed separation displacement sensor and information processing acquisition system two parts (see figure 1), comprise barrel-type casing 1, digital display screen 23, alarm 28, upper end cover 2 and the bottom end cover 3 of cable connecting terminal 27 is installed, its middle shell 1, upper end cover 2, bottom end cover 3 are to be made by metal or nonmetallic materials with certain intensity, the diameter of housing 1 is 40～60mm, and thickness is 1～3mm.Upper end cover 2 and bottom end cover 3 are fixed on the two ends of housing cylindrical shell 1 respectively with fluid sealant, the seal bore that has line of pull to pass above, and bottom end cover 3 is installed connection terminal 27, and digital display screen 23 and alarm 28 are installed on the outside surface of cylindrical shell 1.Fixedly damping back up pad 4 on cylindrical shell 1 wall in housing below the upper end cover 2, strap 21 usefulness screws are installed in above the damping back up pad 4, connect with screw between ambulatory splint 20 and the strap 21, screw adjusted can be passed through in the slit between them, thereby appropriateness clamps line of pull 11; Damping back up pad 4, strap 21 and ambulatory splint 20 are made by hard moulding material, damping back up pad 4 is that diameter equates with cylindrical shell 1 internal diameter, thickness is the disk of 3mm, the aperture that has line of pull 11 to pass through above it, strap 21 and ambulatory splint 20 are of a size of 5 * 5 * 20mm; Back up pad 5 is installed in damping back up pad 4 belows, the size of back up pad 5 and mounting means are identical with damping back up pad 4, displacement conversion system and bed separation displacement sensor unit are installed above it, and wherein the displacement conversion system comprises: supporting station 8, locating shaft 9, displacement conversion wheel 10, organic glass pipe 12, grating ring 13 and little lenticular lenses 14 etc.24 * 24 * 5mm is made, is of a size of to supporting station 8 by duroplasts, by screw retention on back up pad 5; Locating shaft 9 is that metal material is made, and an end is fixed on the supporting station 8; Displacement conversion wheel 10 is duroplasts circle wheels, is enclosed within on the locating shaft 9 free to rotately, and wheel face is carved with the winding slot that twines line of pull 11, and the side is provided with the boss that organic glass round tube 12 is installed; Organic glass pipe 12 1 ends are fixed on the boss of displacement conversion wheel 10, under the line of pull effect, organic glass pipe 12 rotates synchronously with displacement conversion wheel 10, and the other end is carved with grating ring 13, this grating ring 13 can be to buy ready-made sticking, and also can directly engrave; Little lenticular lenses 14 is placed in the outside surface of organic glass pipe 12, and with grating ring 13 tangent contacts, when organic glass round tube 12 was rotated, grating ring 13 produced interference of light striped with little lenticular lenses 14.Grating ring 13 and little lenticular lenses 14 adopt the equidistant parallel grating of 10 lines/mm, also can adopt the bigger grating of density, to improve measuring accuracy; The bed separation displacement sensor unit comprises:, luminotron 17, photosensitive tube 18, little circuit board 15 and little circuit board 16 etc.Luminotron 17 and photosensitive tube 18 are welded on respectively on little circuit board 16 and the little circuit board 15, and little circuit board 15 is fixed on the back up pad 5, and circuit board 16 is vertically fixed on an end of circuit board 15.Luminotron 17 places grating ring 13 1 end inboards the quarter (subsides) of organic glass pipe 12, photosensitive tube 18 places the organic glass pipe outside, little lenticular lenses 14 is inserted between grating ring 13 and the photosensitive tube 18, the infrared light of luminotron emission sees through organic glass pipe 12 tube walls, grating ring 13 and little lenticular lenses 14 and projects on the photosensitive tube 18, the optical stripe information translation that grating ring 13 and little lenticular lenses 14 are interfered becomes electric signal, is sent to the information acquisition processing unit by cable.
Damping back up pad 6 is installed in back up pad 5 belows, the size of damping back up pad 6 and mounting means are identical with damping back up pad 4, strap 21 usefulness screws are installed in below the damping back up pad 6, connect with screw between ambulatory splint 20 and the strap 21, screw adjusted can be passed through in slit between them, thereby clamps line of pull 11 from other end appropriateness.The aperture that has line of pull 11 to pass through above the damping back up pad 6; Disc control circuit board 7 is installed in damping back up pad 6 belows.
The information acquisition processing unit that control circuit board 7 is installed above comprises: (see figure 4)s such as single chip control module, voltage-frequency modular converter, 485 communication modules, display module and power transfer module.The power module of information acquisition processing unit is bed separation displacement sensor unit and the power supply of information acquisition processing unit by the power lead in the cable, the photosignal that the photosensitive tube 18 of bed separation displacement sensor unit produces is sent to single chip control module by signal wire in the cable, after the software processes through establishment voluntarily, be transferred to display module and be sent to the display screen 23 of housing 1 outside and alarm 28 shows or reports to the police, signal after also will handling simultaneously is transferred to the voltage-frequency modular converter and changes into frequency signal, through cable, connection terminal 27 and external electric cable are sent to the underground communication substation, be transferred to ground monitoring master station again, ground monitoring master station is converted to frequency signal bed separation displacement information again.Realization is by ground master station remote real-time automatic monitoring butt entry roof bed separation displacement, and the information acquisition processing unit also is provided with 485 communication modules, provides passage by 485 buses for long-distance remote control.
Line of pull 11 is the very little metal wires of retractility, around a week, the one end is upward through slit between aperture, strap 21 and the ambulatory splint 20 of damping back up pad 4 and the seal bore of upper end cover directly is fixed on place, rock stratum to be measured in displacement conversion is taken turns 10 races.Line of pull 11 other ends are passed down through the seal bore of the aperture of slit between aperture, strap 21 and the ambulatory splint 20 of back up pad 5 and damping back up pad 6, control circuit board 7 and bottom end cover 3 in the Wiinding cartridge outside bottom end cover 3.
It is as shown in Figure 2 that described displacement conversion is taken turns 10 another kind of forms, this is taken turns and carves two winding slots, line of pull 11 is divided into two parts, the first half one end is fixed in the winding slot of displacement conversion wheel 10, around 3 to 4 circles, slit and upper end cover seal bore are fixed on the tested rock stratum other end between aperture, strap 21 and the ambulatory splint 20 of damping back up pad 4 in winding slot; One end of the latter half is fixed in another winding slot of displacement conversion wheel 10, the other end at this winding slot around 3 to 4 circles, again between aperture, strap 21 and the ambulatory splint 20 of back up pad 5 and damping back up pad 6 in the aperture of slit, control circuit board 7 and the Wiinding cartridge of bottom end cover 3 seal bores outside housing.
Described bed separation displacement monitor is when assembling, relevant parts are installed respectively on damping back up pad 4, back up pad 5 and damping back up pad 6, with two metal mainstays they are worn by certain interval in turn then, and be fixed on these two metal mainstays and constitute an integral body, integral body is packed in the housing 1 again, and damping back up pad 4, back up pad 5 and damping back up pad 6 are fixed on housing 1 inwall.Certain this assemble method is not unique, as long as can guarantee that the bed separation displacement sensing unit can the perception line of pull and the relative displacement of sensor, other method also can.
Two cover displacement conversion system and bed separation displacement sensor units can be installed in the circular cylindrical shell of described bed separation displacement monitor, a shared cover information acquisition processing unit, as shown in Figure 3, two cover damping clamping plate 19 are installed on the damping back up pad 4,19A, the guide plate 24 of line of pull 11 is installed below the damping back up pad 4, two back up pads 5,5A is divided into, following two are installed in cylindrical shell 1 middle part below the guide plate 24, displacement conversion system and bed separation displacement sensor unit are installed respectively above it, article two, line of pull 11, their upper end of 11A is through 4 liang of covers of guide plate 24 damping back up pads damping clamping plate 19, the slit between the 19A and the seal bore of upper end cover are separately fixed in two different rock stratum, can monitor two bed separation displacements between the rock stratum like this.As mentioned above also can be in cylindrical shell 1 layering displacement conversion system and bed separation displacement sensor unit more than two covers are installed, each line of pull such as above-mentioned installation method, be separately fixed on different rock (coal) layer, just can monitor the bed separation displacement of two above rocks (coal) layer simultaneously.
The information acquisition processing unit of described bed separation displacement monitor can be made the information acquisition processing instrument separately, comprising: display screen 23, alarm 28, control circuit board 7, single chip control module, display module, voltage-frequency modular converter, power transfer module and connection terminal 27 etc.Control circuit board 7 is fixed on the housing 1, and single chip control module, display module, voltage-frequency modular converter and power transfer module etc. are installed above it; Connection terminal 27 links with control circuit board 7, bed separation displacement sensor and underground communication substation respectively by cable.The electric impulse signal that the photosensitive tube 18 of bed separation displacement sensor produces, be sent to the information acquisition processing instrument by connection terminal and the cable that directly links with cable, display screen 23 and alarm 28 at the information acquisition processing instrument after single chip control module is handled show or warning, 200～1000Hz frequency signal of the voltage-frequency modular converter being changed by connection terminal 27 and cable is sent to the underground communication substation simultaneously, is transferred to ground monitoring master station more thus.Use independently that the information acquisition processing unit can make the installation of bed separation displacement monitor easier and reasonable, show and alarm is in place more easily.
The grating ring 13 of bed separation displacement monitor and little lenticular lenses 14 adopt the constant pitch anomaly line raster of 10 lines/mm, the winding slot diameter of displacement conversion wheel 10 equates with the grating ring diameter on the organic glass pipe 12, so the Displacement Measurement precision is 0.1mm, if adopt more highdensity grating, then can improve measuring accuracy, for example, adopt 100 lines/mm, measuring accuracy is 0.01mm, adopts 1000 lines/mm, and measuring accuracy is 0.001mm or the like.Change the ratio of displacement conversion human relations 10 winding slot diameters and organic glass pipe 12 diameters, also can improve measuring accuracy, for example, adopt 10 lines/mm, displacement conversion human relations 10 winding slot diameters are 1: 2 with the ratio of organic glass pipe 12 diameters, and then the Displacement Measurement precision is 0.05mm.Adopt above-mentioned two kinds of methods can reach the measuring accuracy of any requirement.
Several schemes in the present embodiment are circular cylindrical shell, but and do not mean that the present invention must be a circular cylindrical shell, be fixed on separately on the different rock stratum as long as can guarantee housing, line of pull, making what shape can.
The pulling force that in the present embodiment prestretching line of force is imposed on is finished by two damping clamping plate up and down, as long as but can guarantee that line of pull tightens, on the displacement conversion wheel, produce enough frictions, also can adopt other known technology.
Bed separation displacement monitor of the present invention can be installed in the top, tunnel, on the base plate, the country rock surface, line of pull is fixed on rock to be measured (coal) layer by boring, when bed separation displacement takes place when, line of pull 11 drives displacement conversion wheel 10 and organic glass pipe 12 rotates synchronously, bed separation displacement is converted to arc length, grating ring 13 on the organic glass pipe 12 is interfered the grating fringe that forms with little lenticular lenses 14, arc length is converted to optical information, the photosensitive tube 18 of bed separation displacement sensor unit is converted to electric signal with optical information, be sent to the single chip control module processing of information acquisition processing unit by cable after, on display screen 23 and alarm 28, show or report to the police through display module, the voltage-frequency modular converter of the processing unit of information acquisition simultaneously is converted to frequency signal with bed separation displacement, be transferred to ground monitoring master station by underground substation, convert frequency signal to bed separation displacement information, through visualization processing, show back and surrounding rock separation layer displacement Changing Pattern figure.Bed separation displacement monitor of the present invention both can have been monitored the absolute displacement amount of rock (coal) layer, but also displacement monitoring rate of change, when displacement or rate of displacement surpass safety margin, can implement underworkings is reported to the police automatically from ground monitoring master station, realization is avoided the security incident that causes because of roof collapse, impulsion pressure to underworkings top board and the remote real-time automatic monitoring of country rock body bed separation displacement.Bed separation displacement monitor of the present invention is simple in structure, easy to operate, both be applicable to and little displacement high-acruracy survey also be applicable to the high-precision automatic monitoring of big displacement.This instrument can be widely used in the work progresss such as mining, building, water conservancy, road country rock body, tunnel roof and floor, make bed separation displacements such as rock mass carries out auto-real-time monitoring effectively, in time eliminate production safety hidden danger, also for the tunnel and support the rock mass design foundation is provided.
Claims (6)
1, a kind of bed separation displacement monitor, comprise housing, bed separation displacement sensor unit and information acquisition processing unit, it is characterized in that: described bed separation displacement sensor unit is to go up a perpendicular brace table (8) in back up pad (5), establish a locating shaft (9) thereon, on this axle (9), establish displacement conversion wheel (10), one side of this displacement conversion wheel (10) connects a transparent cylinder (12), grating ring (13) is arranged on this transparent cylinder (12), in this grating ring (13) below, be close to and establish a little original screen panel (14) that is fixed on the described back up pad (5), setting is fixed on the luminotron (17) on the described back up pad (5) by support in described grating ring (13), described little original screen panel (14) down corresponding establish photosensitive tube (18), described bed separation displacement sensor unit is fixed on the described housing (1) by described back up pad (5), a line of pull (11) that is added with pretension is introduced from the top of housing (1), on the wire casing on the described displacement conversion wheel (10), pass around the bottom of a circle back at least from housing (1), described luminotron (17) connects power supply, and the output terminal of described photosensitive tube (18) connects the input end of described information acquisition processing unit.
2, bed separation displacement monitor according to claim 1, it is characterized in that in the described information acquisition processing unit single chip control module being arranged, its input port has one tunnel input at least, the output terminal that connects described photosensitive tube (18), the output of described single chip control module connects display module respectively, the audible and visible alarm module, voltage-frequency modular converter and 485 communication modules, described 485 communication modules connect 485 buses, described voltage-frequency modular converter output connects 485 buses or establishes an independent output terminal, above-mentioned all modules are installed on the circuit board (7), provide various required voltage power supplies by a power transfer module.
3, according to the bed separation displacement monitor of claim 2, it is characterized in that respectively establishing damping clamping plate (19,22) at introducing place and the place of passing of described line of pull (11), described damping clamping plate are made up of the strap (21) and the ambulatory splint (20) that are fixed on the housing (1), described two clamping plate (20,21) connect with holding screw, can regulate clamping plate pressure size.
4, according to the bed separation displacement monitor of claim 3, it is characterized in that on described displacement conversion wheel (10), establishing two winding slots (10A, 10B) side by side, described line of pull (11) separates from the centre, be fixed on behind some circles in this winding slot in any groove in described winding slot (10A, 10B) of the lower end of the first half, the upper end of the latter half oppositely is fixed in this winding slot behind some circles in another winding slot.
5, according to the bed separation displacement monitor of claim 2 or 3 or 4, it is characterized in that in a housing (1), being provided with at least two bed separation displacement sensor units, its separately line of pull (11,11A) is introduced from introducing separately, from passing separately, the photosensitive tube of described at least two bed separation displacement sensor units (18,18A) connects the different input ports of described single chip control module.
6,, it is characterized in that described bed separation displacement sensor unit and information acquisition processing unit branch are in two housings according to the bed separation displacement monitor of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100572487A CN100485317C (en) | 2006-03-09 | 2006-03-09 | Bed separation displacement monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100572487A CN100485317C (en) | 2006-03-09 | 2006-03-09 | Bed separation displacement monitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1828220A true CN1828220A (en) | 2006-09-06 |
| CN100485317C CN100485317C (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100572487A Expired - Fee Related CN100485317C (en) | 2006-03-09 | 2006-03-09 | Bed separation displacement monitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929845A (en) * | 2010-08-24 | 2010-12-29 | 安里千 | Roadway surrounding rock separation layer displacement monitor |
| CN103527248A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Coal mine top plate aquiclude stability monitoring system based on fiber Bragg grating and monitoring method |
| CN111812302A (en) * | 2020-07-30 | 2020-10-23 | 河南城建学院 | Rock-soil interlayer dislocation detection device |
-
2006
- 2006-03-09 CN CNB2006100572487A patent/CN100485317C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929845A (en) * | 2010-08-24 | 2010-12-29 | 安里千 | Roadway surrounding rock separation layer displacement monitor |
| CN103527248A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Coal mine top plate aquiclude stability monitoring system based on fiber Bragg grating and monitoring method |
| CN111812302A (en) * | 2020-07-30 | 2020-10-23 | 河南城建学院 | Rock-soil interlayer dislocation detection device |
| CN111812302B (en) * | 2020-07-30 | 2022-05-27 | 河南城建学院 | Rock-soil interlayer dislocation detection device |
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| Publication number | Publication date |
|---|---|
| CN100485317C (en) | 2009-05-06 |
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Granted publication date: 20090506 Termination date: 20120309 |