CN109163688B - Three-base-point roof separation layer monitor - Google Patents
Three-base-point roof separation layer monitor Download PDFInfo
- Publication number
- CN109163688B CN109163688B CN201810938909.XA CN201810938909A CN109163688B CN 109163688 B CN109163688 B CN 109163688B CN 201810938909 A CN201810938909 A CN 201810938909A CN 109163688 B CN109163688 B CN 109163688B
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- Prior art keywords
- separation layer
- separation
- base
- monitoring
- shell
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- 238000000926 separation method Methods 0.000 title claims abstract description 67
- 238000012544 monitoring process Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 239000011435 rock Substances 0.000 claims abstract description 8
- 241000935974 Paralichthys dentatus Species 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 7
- 235000014676 Phragmites communis Nutrition 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 6
- 239000003245 coal Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000012806 monitoring device Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 1
- 241000242541 Trematoda Species 0.000 description 5
- 230000032798 delamination Effects 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
Abstract
The invention discloses a three-base-point roof separation layer monitor, which relates to a coal mine production field monitor, and comprises a guide pipe, a mechanical shell, an electric shell and three independent separation layer monitoring mechanisms with the same structure, wherein the three independent separation layer monitoring mechanisms are respectively used for monitoring a shallow base point A and a deep base point B of a separation layer and a deep base point C in 8-14 m stable rock layer at the upper part of a roadway roof. The invention designs a monitoring device combining machinery and electricity, which converts the displacement between the fluke and the top of the equipment caused by the separation layer into an electric signal of a potentiometer, and displays the displacement of the separation layer after processing, thereby improving the effectiveness and accuracy of measurement; three groups of independent separation layer monitoring mechanisms are designed, deep base points of stable rock strata 8-14 m above a roadway roof are added to the monitoring base points, the base points serve as stable and motionless reference points and serve as references for separation layer movement of the roof, and accuracy and reliability of measured separation layer data are guaranteed.
Description
Technical Field
The invention relates to a coal mine production field monitoring instrument, in particular to a three-base-point roof separation layer monitoring instrument.
Background
Roof separation monitoring is to monitor the sinking amount of the roof at different positions by using a roof separation instrument so as to grasp the stable state of the roof at any time. The main purpose of installing a roof separation layer instrument is as follows: timely mastering the roof separation condition and finding out the sign of roof instability as soon as possible so as to avoid roof fall accidents, and has important significance for coal mine safety production.
The existing products are divided into two main types of pure mechanical type and electronic digital display type. Compared with pure mechanical type, the electronic digital display has the following advantages: the system can monitor, store and upload measured delamination data on line, is convenient for a monitoring station on the coal mine to analyze and compare delamination conditions, and timely sends out monitoring alarm information. Therefore, the utility model is popular with coal mine users and is widely used.
The existing electronic digital display type measuring base points are mostly two, a rotary potentiometer is adopted, separation layer displacement is converted into rotary potential signals of the potentiometer to be output, and the rotary potential signals are transmitted to a ground monitoring station through a transmission circuit by a cable to be subjected to data processing.
The existing electronic digital display type separation layer instrument has the defects that: 1. because the measuring base point is positioned in the direct top and the basic top, the depth of the measuring base point is shallow, and a stationary datum point is difficult to find, so that an accurate reference object is not available for measuring the separation layer movement and deformation of the top plate. 2. Because of the special working environment in the coal mine, namely the erosion of corrosive gases such as high temperature, humidity, water drenching, sulfur and the like, the movable contact sliding contact reed of the potentiometer is easy to oxidize and rust with the fixed contact resistor, so that the contacts cannot be effectively contacted, the transmission of potential signals cannot be normally carried out, the normal running of separation layer monitoring is seriously influenced, and the potential hidden trouble of coal mine safety production is realized.
Disclosure of Invention
In order to solve the technical problems, the invention provides a three-base-point roof separation monitor, wherein a deep base point of a stable rock stratum which is arranged at the upper part of a coal mine tunnel roof and is 8-14 meters is added to a measured base point, an electric component and a mechanical component are separated and sealed through two shells, so that corrosion to the electric component in a coal mine environment is effectively isolated, and the accuracy and reliability of measured separation data are ensured.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a three basic point roof separation monitor, includes stand pipe, mechanical shell, electrical shell and three independent, the same separation monitoring mechanism of structure of group, is used for monitoring shallow base point A, deep base point B and the tunnel roof upper portion of separation respectively 8-14 meters in the stable rock formation deep base point C, every group separation monitoring mechanism includes anchor claw, steel wire, connecting slider, interior spring wheel, fifth wheel and potentiometre, anchor claw, the other end are connected to steel wire one end and pass the connecting slider and fix, set up three mutually independent slide in the stand pipe, three group separation monitoring mechanism's connecting slider initial position sets up respectively in the stand pipe corresponds the bottom of three slide to can slide in the slide, every group separation monitoring mechanism's interior spring wheel is connected with connecting wheel coaxial coupling, the connecting slider is connected with the wheel through connecting reed respectively, the rotation axis of potentiometre passes through connecting sleeve and adapter coupling, and three groups in the mechanical part of connecting monitoring mechanism sets up in stand pipe and mechanical shell, three groups separation monitoring mechanism's electrical part sets up in electrical signal generator and mechanical shell and electrical displacement take place, when the electrical shell and electrical shell are passed through to the displacement, the mechanical displacement takes place in the sealed digital display separation, the displacement takes place in the sealed place, the electrical shell is down.
The three groups of steel wire wheels are arranged outside the mechanical shell, steel wires are wound on each group of steel wire wheels, the steel wires penetrate through corresponding connecting sliding blocks located at the initial positions and then are connected with flukes, the length of the steel wires between each fluke and each connecting sliding block is determined by a base point to be detected, and the steel wires are cut off and fixed on the connecting sliding blocks after being stretched to a proper length.
The connecting sleeve shaft of the potentiometer is axially and radially sealed with the electric shell through a sealing ring and a sealing pressing plate.
The spring wheel is internally provided with a coil spring, and the return of the connecting sliding block is realized through the adjustment of the torsion by the coil spring adjusting rotating shaft.
The bottom end of the guide pipe is provided with a guide plate, the guide plate is provided with a guide groove, and a connecting reed connected with a connecting wheel positioned below is accommodated in the guide groove.
The mutually independent slide ways inside the guide pipe adopt a cross lattice structure formed by movable slide plates.
The invention designs a mechanical and electrical combined monitoring device, converts the displacement between the fluke and the top of the device caused by the separation layer into an electric signal of the potentiometer, displays the displacement of the separation layer after treatment, separates a mechanical part from an electrical part through two shells, seals the shells of the electrical part, effectively isolates the corrosion of corrosive gases such as high temperature, humidity, water shower, sulfur and the like in the coal mine on the potentiometer, and improves the effectiveness and accuracy of measurement; three groups of independent separation layer monitoring mechanisms are designed, a deep base point of a stable rock stratum 8-14 m above a roadway roof is added to a monitoring base point, the base point is used as a stable reference point and is used as a reference for separation layer movement of the roof, and accuracy and reliability of measured separation layer data are ensured; simple structure, simple to operate shows clearly easily discernment, is fit for extensive popularization and application.
Drawings
FIG. 1 is a left side schematic view of the present invention;
FIG. 2 is an enlarged schematic view of the portion of FIG. 1A;
FIG. 3 is a schematic diagram of the front structure of the present invention;
FIG. 4 is an enlarged schematic view of the portion B of FIG. 3;
FIG. 5 is a right side schematic view of the present invention;
FIG. 6 is a schematic view of the internal slideway of the guide tube;
fig. 7 is a schematic view of the installation of the present invention.
Detailed Description
The invention is described in detail below with reference to the attached drawings and the specific embodiments:
as shown in fig. 1-5, a three-base-point roof separation monitor comprises a guide tube 17, a mechanical housing 1, an electric housing 2 and three groups of independent separation monitoring mechanisms with the same structure, wherein the three groups of separation monitoring mechanisms are respectively used for monitoring shallow base points a and deep base points B of separation layers and deep base points C in 8-14 m stable rock layers on the upper parts of roadway roofs, each group of separation monitoring mechanisms comprises an anchor claw 11, a steel wire 12, a connecting sliding block 13, an inner spring wheel 15, a connecting wheel 16 and a potentiometer 21, one end of the steel wire 12 is connected with the anchor claw 11, the other end of the steel wire passes through the connecting sliding block 13 and is fixed, three mutually independent sliding ways are arranged in the guide tube 17, the connecting sliding blocks 13 of the three groups of separation monitoring mechanisms are respectively arranged at the initial positions of the bottom ends of the three sliding ways corresponding to the three sliding ways in the guide tube 17 and can slide in the sliding ways, the inner spring wheels 15 and the connecting wheels 16 of each group of separation monitoring mechanisms are respectively connected coaxially, the connecting sliding blocks 13 are respectively connected with the connecting wheels 16 through connecting springs 18, a rotating shaft of the potentiometer 21 is connected with the connecting sleeve wheels 22 and 23 through the connecting sleeve 16, one end of the connecting sleeve 21 is flexibly connected with the three groups of the connecting sleeve wheels 16, the three groups of the three connecting sliding blocks are arranged in the mechanical housing 1 and the housing 1, the three groups of the electric housing 1 are arranged in the mechanical housing 1 and the mechanical housing 2, the three groups of separation monitoring mechanisms are arranged in the three groups of the mechanical housing 1 and the mechanical housing 2 are displaced, and the mechanical separation monitoring mechanisms are displaced down, and the mechanical separation monitoring mechanism is displaced down, and the mechanical separation 1 is displaced, and the mechanical separation is displaced, and the device is displaced.
In a preferred manner, in this embodiment, three groups of steel wire wheels 14 are arranged outside the machine housing 1, steel wires 12 are wound on each group of steel wire wheels 14, the steel wires 12 pass through corresponding connecting sliding blocks 13 positioned at the initial positions and then are connected with flukes 11, the length of the steel wires between the flukes 11 and the connecting sliding blocks 13 is determined by a base point to be detected, and the steel wires are cut off and fixed on the connecting sliding blocks 13 after being stretched to a proper length.
In the preferred embodiment, the connection sleeve shaft 22 of the potentiometer 21 and the electric housing 2 are sealed axially and radially by the sealing ring 24 and the sealing pressing plate 25, so that corrosion of corrosive gases such as high temperature, humidity, water shower, sulfur and the like to the potentiometer can be effectively isolated, and effectiveness and accuracy of separation layer measurement are improved.
In the preferred embodiment, a coil spring is disposed in the inner spring wheel 15, and the return of the connecting slider 13 is achieved by adjusting the torque through the coil spring adjusting shaft 151.
In the preferred embodiment, a guide plate 19 is disposed at the bottom end of the guide tube 17, a guide groove is disposed on the guide plate 19, and a connection reed 18 connected with the connecting wheel 16 located below is accommodated in the guide groove, so that the connection reed 18 is convenient to connect with the connecting wheel 16 located below.
In the preferred embodiment, the mutually independent sliding ways inside the guiding tube 17 adopt a cross structure formed by movable sliding plates, as shown in fig. 6, so as to accommodate the smooth movement of the connecting sliding block 13 along with the occurrence of separation layers therein.
As shown in fig. 7, during installation, three groups of flukes 11 are respectively installed at a designed shallow base point A, a deep base point B and a deep base point C in a stable rock layer of 8-14 meters at the upper part of a tunnel roof, when the tunnel roof is sunk to change the distance between the flukes 11 anchored above the roof and the mechanical shell 1 of the delamination apparatus, a steel wire 12 is pulled, the steel wire 12 and a connecting slide block 13 are fixed together through a set screw, and when delamination occurs, the connecting slide block 13 can displace along with the delamination in a guide pipe 17. Before installation, the steel wire 12 is wound in the steel wire wheel 14, is drawn out from the box to a required height during paying off, and is fixed on the connecting sliding block 13 after cutting off.
After the rotation torque is adjusted through the coil spring adjusting rotating shaft 151, the inner spring wheel 15 is fixed on the mechanical shell 1 through a screw, when the connecting sliding block 13 is displaced, the connecting spring 18 drives the connecting wheel 16 to rotate, the connecting wheel 16 drives the potentiometer 21 which is coaxially connected to rotate, the linear displacement of the separation layer is converted into rotation of the rotating shaft of the potentiometer 21, the rotation of the rotating shaft of the potentiometer 21 enables output signals of the potentiometer 21 to change, and the changed signals are processed through a chip after being amplified and digital-analog converted, so that the current separation layer value of the top plate is displayed on the nixie tube.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that the invention is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a three-base roof separation monitor which is characterized in that the three-base roof separation monitor comprises a guide pipe (17), a mechanical shell (1), an electric shell (2) and three groups of independent separation monitoring mechanisms with the same structure, wherein the three groups of separation monitoring mechanisms are respectively used for monitoring shallow base points A, deep base points B and deep base points C in stable rock layers of 8-14 meters at the upper part of a roadway roof, each group of separation monitoring mechanisms comprises a fluke (11), a steel wire (12), a connecting sliding block (13), an inner spring wheel (15), a connecting wheel (16) and a potentiometer (21), one end of the steel wire (12) is connected with the fluke (11), the other end of the steel wire passes through the connecting sliding block (13) and is fixed, three mutually independent slide ways are arranged in the guide pipe (17), the initial positions of the three groups of connecting sliding blocks (13) of the separation monitoring mechanisms are respectively arranged at the bottom ends of the three slide ways and can slide in the slide ways, the inner spring wheels (15) of each group of separation monitoring mechanisms are coaxially connected with the connecting wheel (16), the connecting sliding blocks (13) are connected with the connecting spring wheels (16) through the connecting wheel (18) and the connecting sleeve (16) through the connecting spring wheels (16) and the connecting sleeve (21) and the connecting sleeve (23) and the mechanical shell (1), the three groups of electrical components of the separation layer monitoring mechanism are arranged in the electrical shell (2), the mechanical shell (1) and the electrical shell (2) are separated from each other and sealed, when separation layer occurs, the mechanical shell (1) and the electrical shell (2) displace downwards along with the separation layer, the connecting sliding block (13) is driven to slide for displacement, and after the displacement is converted into an electrical signal through the potentiometer (21), the nixie tube displays the current separation layer value of the top plate.
2. The three-base roof separation monitor according to claim 1, wherein three groups of steel wire wheels (14) are arranged outside the machine shell (1), steel wires (12) are wound on each group of steel wire wheels (14), the steel wires (12) penetrate through corresponding connecting sliding blocks (13) located at initial positions and then are connected with anchor claws (11), the length of the steel wires between the anchor claws (11) and the connecting sliding blocks (13) is determined by a base point to be detected, and the steel wires are cut off and fixed on the connecting sliding blocks (13) after being stretched to a proper length.
3. The three-base roof separation monitor according to claim 1, wherein the axial and radial sealing is performed between the connecting sleeve shaft (22) of the potentiometer (21) and the electric housing (2) through a sealing ring (24) and a sealing pressing plate (25).
4. The three-base-point roof separation monitor according to claim 1, wherein a coil spring is arranged in the inner spring wheel (15), and the return of the connecting sliding block (13) is realized through the adjustment of the torque by the coil spring adjusting rotating shaft (151).
5. The three-base roof separation monitor according to claim 1, wherein a guide plate (19) is arranged at the bottom end of the guide tube (17), a guide groove is arranged on the guide plate (19), and a connecting reed (18) connected with a connecting wheel (16) positioned below is accommodated in the guide groove.
6. The three-base roof separation monitor according to claim 1, wherein mutually independent slide ways inside the guide tube (17) adopt a cross structure formed by movable slide plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810938909.XA CN109163688B (en) | 2018-08-17 | 2018-08-17 | Three-base-point roof separation layer monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810938909.XA CN109163688B (en) | 2018-08-17 | 2018-08-17 | Three-base-point roof separation layer monitor |
Publications (2)
| Publication Number | Publication Date |
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| CN109163688A CN109163688A (en) | 2019-01-08 |
| CN109163688B true CN109163688B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810938909.XA Active CN109163688B (en) | 2018-08-17 | 2018-08-17 | Three-base-point roof separation layer monitor |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112729217A (en) * | 2020-12-23 | 2021-04-30 | 山东光安智能科技有限公司 | Multi-base-point top plate separation layer positioning sensor |
| CN113188407A (en) * | 2021-04-01 | 2021-07-30 | 安徽蓝科光电科技有限公司 | Measuring device and measuring method for fiber bragg grating separation layer |
| CN113639649A (en) * | 2021-08-10 | 2021-11-12 | 合肥市光感芯科技有限公司 | Strain type roof separation layer sensor based on fiber bragg grating |
| CN116025421B (en) * | 2023-02-14 | 2023-06-20 | 中感(安徽)矿山技术有限公司 | Four-base-point grid-containing roof separation instrument |
| CN116202407B (en) * | 2023-04-27 | 2023-08-04 | 泰安泰烁岩层控制科技有限公司 | Implementation method of high-precision multipoint roof separation instrument |
| CN116817727A (en) * | 2023-07-06 | 2023-09-29 | 中矿众合(河北)矿山科技有限公司 | Displacement sensor for coal mine |
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| CN109163688A (en) | 2019-01-08 |
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