CN106643413B - Roof separation layer appearance system - Google Patents
Roof separation layer appearance system Download PDFInfo
- Publication number
- CN106643413B CN106643413B CN201710051367.XA CN201710051367A CN106643413B CN 106643413 B CN106643413 B CN 106643413B CN 201710051367 A CN201710051367 A CN 201710051367A CN 106643413 B CN106643413 B CN 106643413B
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- CN
- China
- Prior art keywords
- pulley
- tray
- rope
- fixed
- roof
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Links
- 238000000926 separation method Methods 0.000 title claims abstract description 28
- 239000011435 rock Substances 0.000 claims description 21
- 230000032798 delamination Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 22
- 239000010959 steel Substances 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000004873 anchoring Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005641 tunneling 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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a roof separation instrument system which mainly comprises a deep base point, steel wire ropes, a tray anchoring head, pulleys, fixing rods, a dial, pointers, fasteners and the like, wherein the pulleys and the tray form an integral structure through the fixing rods, the shallow base point and the deep base point are respectively led out from a drilled hole to the surface of a roadway through the steel wire ropes with different lengths, the other ends of the steel wire ropes are respectively positioned at two sides of the pulleys through tray holes, the other ends of the two steel wire ropes are tightly screwed and fixed on the edge sides of the pulleys through fastening screws, a round dial is attached to the surface of one side of the pulleys, and a vertical pointer is fixed above the dial. The method can more intuitively judge and acquire the information of the roof separation layer, improves the accuracy of the monitoring result, and is simple to process and easy to realize.
Description
[ field of technology ]
The invention belongs to the technical field of mine underground roadway tunneling mine pressure monitoring, and particularly relates to a roof separation instrument system.
[ background Art ]
The underground geological exploitation condition of the coal mine is complex, the mine pressure display rule is sought, and the underground geological exploitation condition is a basis for providing support structure design and support form selection for the roadway. The roof separation indicator is mainly used for roof separation monitoring of coal mine roadways, guiding roof support parameters to be selected and preventing roof falling accidents.
The current roof separation instrument mainly uses machinery, but the field use effect is extremely poor, the data basically have no change after a large number of separation instruments are installed, the positions of the roadway surface measuring points of the shallow base points and the deep base points are not uniform, and if the separation quantity is analyzed by difference, the error and the unreliability of the measuring result are increased.
In order to accurately grasp the movement rule of the roadway roof, accurately measure the separation layer quantity between the key rock stratum and the rock stratum below, it is necessary to provide a roof separation instrument system to solve the technical problems.
[ invention ]
The invention solves the problems that the original roof separation instrument has poor measuring effect and can not directly read the separation amounts of a key rock stratum and a rock stratum below, and provides a roof separation instrument system which improves the measuring precision.
The invention adopts the following technical scheme:
a roof delamination system, comprising: the pulley and two ropes, one end of each rope is fixed at two positions of the rock stratum roof through two fixed anchor heads, and the other end of each rope is connected to the circumferential surface of each pulley; one fixed anchor head can pull the pulley to rotate along the clockwise direction through one rope, the other fixed anchor head can pull the pulley to rotate along the anticlockwise direction through the other rope, when the relative positions of the two fixed anchor heads on the rock stratum change, the pulley is pulled to rotate, and the separation layer amount of the rock stratum top plate can be obtained by detecting the rotation amount of the pulley.
The roof separation instrument system also comprises a tray, the tray is fixed on the surface of the roadway, two rope channels are arranged in the tray, and two ropes are respectively wound on the circumferential surface of the pulley along the clockwise direction and the anticlockwise direction through the two rope channels.
Two rope channels in the tray extend from the center of the tray to two sides of the tray respectively, one end opening of each rope channel faces upwards from the center of the tray, and the other end opening of each rope channel faces downwards from two sides of the tray.
The two ropes are wound on the circumferential outer surface of the pulley in a tensioning mode, the two ropes are fastened on the pulley at the lowest circumferential point of the pulley through fasteners, one rope is wound on the lower left 1/4 circumferential surface of the pulley, and the other rope is wound on the lower right 1/4 circumferential surface of the pulley.
The pulley is rotatably arranged on the tray through the fixing rod, so that an integral structure is formed.
The pulley comprises two fixing rods, one ends of the two fixing rods are fixedly connected to the tray, and the other ends of the two fixing rods are connected to a rotating shaft penetrating through a central shaft hole of the pulley.
The surface of the pulley is provided with a pointer and a dial, and the rotation amount of the pulley is detected by reading the change amount of the scale indicated by the pointer on the dial.
The two fixed anchor heads are respectively fixed at the position of the key rock stratum and the position of the soft rock below the key rock stratum.
The tray is fixed on the surface of the roadway through the fixed anchor heads.
Compared with the prior art, the invention has at least the following beneficial effects: according to the invention, a layer penetrating drill hole is drilled above a roadway top plate, a deep fixed anchor head and a shallow fixed anchor head are completely installed in the layer penetrating drill hole, two ropes are respectively fixed in a roadway through the two fixed anchor heads, the other ends of the ropes are fixed on pulleys, and the other ends of the two ropes are connected through fasteners, so that the positions of any fixed anchor head are changed, and the pulleys can be driven to rotate, so that the delamination amount is accurately calculated.
[ description of the drawings ]
FIG. 1 is a block diagram of the apparatus of the present invention;
FIG. 2 (a) is a schematic view showing the constitution of a tray and pulleys in the apparatus of the present invention;
FIG. 2 (b) is a schematic view of the mounting structure of the tray and the fixing bars in the apparatus of the present invention;
FIG. 3 is a schematic view of the installation and measurement of the present invention;
FIG. 4 is a schematic diagram of the measurement after delamination according to the present invention.
The device comprises a deep base point fixing anchor head 1-1, a shallow base point fixing anchor head 1-2, a deep base point steel wire rope 2-1, a shallow base point steel wire rope 2-2, a tray 3, a pulley 4, a fixing rod 5, a pointer 6, a fastening piece 7, a circular dial 8, a tray fixing anchor head 9, a right rope channel 10-1 and a left rope channel 10-2.
[ detailed description ] of the invention
The basic characteristic of the separation of the roof of the roadway is that whether the roof is separated or not depends on the movement of a lower soft rock stratum relative to an upper key rock stratum, and the separation amount of the roof is a relative displacement amount.
The invention provides a roof separation instrument system which comprises a depth base point, a steel wire rope, a tray rope channel, pulleys, a fixed rod, a circular dial, a fastener, a pointer and the like. The invention is characterized in that a layer-penetrating drilling hole is drilled above a roadway top plate, shallow base points and deep base points are respectively and completely installed at set positions in the drilling hole, the shallow base points and the deep base points are respectively led out of the surface of the roadway through steel wire ropes with different lengths from the drilling hole, the other ends of the steel wire ropes respectively penetrate through left and right rope channels in a tray and are positioned at two sides of a pulley, the pulley and the tray form an integral structure through a fixing rod, the other ends of the steel wire ropes are fixedly connected with each other along the edges of the two sides of the pulley through fasteners, a circular dial is attached to the surface of the pulley, and a vertical pointer is fixed at one end of the fixing rod above the dial.
Referring to fig. 1 and 2, the roof separation system includes a deep base fixed anchor head 1-1 fixed to a roadway, a shallow base fixed anchor head 1-2, a tray 3 having a rope passage therein, and a pulley 4. The two fixed anchor heads are completely arranged in a layer penetrating drill hole above a roadway top plate, the two fixed anchor heads are led out of the surface of the roadway from the drill hole through steel wire ropes with different lengths, a tray 3 is arranged on the surface of the roadway, a left rope channel 10-2 and a right rope channel 10-1 are respectively formed in the tray from the center to the two sides, the two steel wire ropes 2-1 and 2-2 respectively penetrate through the left rope channel 10-2 and the right rope channel 10-1 in the tray 3, are fastened through fasteners 7 along the edges of two sides of a pulley 4 below the tray 3, and enable the two steel wire ropes 2 to be tightly attached to the outer edge (namely the outer surface of the lower half circumference) of the pulley 4 to form a whole. The two steel wires are tightly fixed on the pulley in a tensioning manner and cling to the outer surface of the lower half circumference of the pulley 4, preferably, the two steel wires are fastened on the pulley at the lowest point of the pulley through the same fastener 7 to form a whole, but the whole is not limited by the fastening method, the two steel wires can be independently fixed on the outer surface of the lower half circumference of the pulley 4, and the pulley can be driven to rotate as long as the position of the fixed anchor head of the base point connected with each steel wire is changed.
Two sides of the pulley 4 respectively form an integral structure with the tray 3 through two fixing rods 5, and the pulley 4 performs free rotation movement between the two fixing rods 5. One end of a fixed rod 5 is provided with a pointer 6 for indicating the position of the pulley in the current state, a circular dial 8 is attached to the surface of the pulley 4 at one side with the pointer 6, the distance represented between each grid of the dial 8 can be determined according to the diameter of the pulley 4, and the position change quantity of the pointer 6 observed twice before and after is compared to obtain the magnitude of the separation quantity of the top plate observed twice.
Referring to fig. 3 and 4, a section of a rectangular roadway in a coal mine is drilled along a roadway roof, holes penetrating through different strata are drilled, deep and shallow foundation points 1-1 and 1-2 are respectively fixed at a key stratum position and a soft rock position below the key stratum through guide rods, namely, a deep foundation point and a shallow foundation point, after the deep foundation point and the shallow foundation point are fixed, steel wires 2-1 and 2-2 with different lengths are respectively pulled out of the drilled holes, then the two steel wires 2-1 and 2-2 respectively penetrate through left and right rope channels 10-2 and 10-1 in a tray 3, the tray 3 is tightly attached to the surface of the rectangular roadway, and the two steel wires 2-1 and 2-2 are tensioned and fixed through fasteners 7 along two side edges of a pulley 4, so that the steel wires 2-1, 2-2, the pulley 4 and the like form a whole, namely, the purpose of installing a roof separation system is achieved.
After the roof separation instrument system is installed, the numerical value corresponding to the circular dial 8 indicated by the pointer 6 on the surface of the pulley 4 is recorded as X1, separation is generated between the deep base point and the shallow base point along with the appearance of mine pressure, namely, the rock stratum position where the shallow base point 1-2 is located is sunken relative to the rock stratum position where the deep base point 1-1 is located, the relative motion between the steel wire ropes 2-1 and 2-2 drives the pulley 4 to rotate anticlockwise, meanwhile, the second well descending observation is carried out, the numerical value corresponding to the dial 8 indicated by the pointer 6 at the moment is recorded and recorded as X2, and the difference value (X1-X2) recorded twice is the magnitude of the separation layer quantity of the roof between the deep base point 1-1 and the shallow base point 1-2 of the roof during the two well descending observation periods.
Claims (5)
1. A roof delamination system, characterized by: comprising the following steps: the pulley and two ropes, one end of each rope is fixed at two positions of the rock stratum roof through two fixed anchor heads, and the other end of each rope is connected to the circumferential surface of each pulley; one fixed anchor head can pull the pulley to rotate clockwise through one rope, the other fixed anchor head can pull the pulley to rotate anticlockwise through the other rope, when the relative positions of the two fixed anchor heads on a rock stratum change, the pulley is pulled to rotate, and the separation layer amount of a rock stratum top plate can be obtained by detecting the rotation amount of the pulley;
the roof separation instrument system also comprises a tray (3), wherein the tray (3) is fixed on the surface of a roadway, two rope channels are arranged in the tray (3), and two ropes are respectively wound on the circumferential surface of the pulley in the clockwise direction and the anticlockwise direction through the two rope channels;
the two fixed anchor heads are respectively fixed at the position of the key rock stratum and the position of the soft rock below the key rock stratum;
two rope channels in the tray extend from the center of the tray to two sides of the tray respectively, one end openings of the two rope channels face upwards from the center of the tray, and the other end openings of the two rope channels face downwards from two sides of the tray;
the two ropes are wound on the circumferential outer surface of the pulley in a tensioning mode, the two ropes are fastened on the pulley at the lowest circumferential point of the pulley through fasteners, one rope is wound on the lower left 1/4 circumferential surface of the pulley, and the other rope is wound on the lower right 1/4 circumferential surface of the pulley.
2. A roof delamination system according to claim 1, wherein: the pulley is rotatably arranged on the tray through a fixing rod (5) to form an integral structure.
3. A roof delamination system according to claim 2, wherein: the device comprises two fixing rods (5), one ends of the two fixing rods (5) are fixedly connected to the tray (3), and the other ends of the two fixing rods (5) are connected to a rotating shaft penetrating through a central shaft hole of the pulley.
4. A roof delamination system according to claim 1, wherein: the surface of the pulley is provided with a pointer (6) and a dial (8), and the rotation amount of the pulley is detected by reading the change amount of the scale indicated by the pointer (6) on the dial.
5. A roof delamination system according to claim 1, wherein: the tray is fixed on the surface of the roadway through the fixed anchor heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051367.XA CN106643413B (en) | 2017-01-23 | 2017-01-23 | Roof separation layer appearance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051367.XA CN106643413B (en) | 2017-01-23 | 2017-01-23 | Roof separation layer appearance system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106643413A CN106643413A (en) | 2017-05-10 |
| CN106643413B true CN106643413B (en) | 2024-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710051367.XA Active CN106643413B (en) | 2017-01-23 | 2017-01-23 | Roof separation layer appearance system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106643413B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608647A (en) * | 2019-10-19 | 2019-12-24 | 山东科技大学 | Mining goaf bottom plate deep hole displacement meter and using method thereof |
| 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 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2155431Y (en) * | 1993-07-10 | 1994-02-09 | 煤炭科学研究总院北京开采研究所 | Roof spacing layer monitoring alarm |
| CN201581931U (en) * | 2009-12-30 | 2010-09-15 | 泰安思科赛德电子科技有限公司 | Surrounding rock moving sensor |
| CN101832745A (en) * | 2010-03-26 | 2010-09-15 | 山东科技大学 | Multi-position base plate delaminating monitor and using method thereof |
| CN201903305U (en) * | 2010-10-29 | 2011-07-20 | 张源 | Gateway roof separation observation device |
| CN103175477A (en) * | 2013-03-05 | 2013-06-26 | 中国矿业大学 | Roof separation indicator |
| CN204202532U (en) * | 2014-10-09 | 2015-03-11 | 山东科技大学 | A kind of amplification reading roof separation indicator |
| CN205066673U (en) * | 2015-11-05 | 2016-03-02 | 陕西煤业化工技术研究院有限责任公司 | Mining mechanical transmission digital display absciss layer monitoring system |
| CN206891318U (en) * | 2017-01-23 | 2018-01-16 | 陕西煤业化工技术研究院有限责任公司 | A kind of roof delamination instrument system |
-
2017
- 2017-01-23 CN CN201710051367.XA patent/CN106643413B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2155431Y (en) * | 1993-07-10 | 1994-02-09 | 煤炭科学研究总院北京开采研究所 | Roof spacing layer monitoring alarm |
| CN201581931U (en) * | 2009-12-30 | 2010-09-15 | 泰安思科赛德电子科技有限公司 | Surrounding rock moving sensor |
| CN101832745A (en) * | 2010-03-26 | 2010-09-15 | 山东科技大学 | Multi-position base plate delaminating monitor and using method thereof |
| CN201903305U (en) * | 2010-10-29 | 2011-07-20 | 张源 | Gateway roof separation observation device |
| CN103175477A (en) * | 2013-03-05 | 2013-06-26 | 中国矿业大学 | Roof separation indicator |
| CN204202532U (en) * | 2014-10-09 | 2015-03-11 | 山东科技大学 | A kind of amplification reading roof separation indicator |
| CN205066673U (en) * | 2015-11-05 | 2016-03-02 | 陕西煤业化工技术研究院有限责任公司 | Mining mechanical transmission digital display absciss layer monitoring system |
| CN206891318U (en) * | 2017-01-23 | 2018-01-16 | 陕西煤业化工技术研究院有限责任公司 | A kind of roof delamination instrument system |
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| Publication number | Publication date |
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| CN106643413A (en) | 2017-05-10 |
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