CN215639254U - Roof separation layer appearance and roof rock stratum mobile monitoring device convenient to use - Google Patents
Roof separation layer appearance and roof rock stratum mobile monitoring device convenient to use Download PDFInfo
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- CN215639254U CN215639254U CN202120881445.0U CN202120881445U CN215639254U CN 215639254 U CN215639254 U CN 215639254U CN 202120881445 U CN202120881445 U CN 202120881445U CN 215639254 U CN215639254 U CN 215639254U
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Abstract
The utility model relates to a top plate separation instrument convenient to use and a top plate rock stratum movement monitoring device, which comprise a main control machine, a magnetostrictive displacement sensor and at least two magnetic rings, wherein the main control machine is connected with the top plate separation instrument; the magnetic ring is provided with a through hole for the magnetostrictive displacement sensor to pass through; the magnetostrictive displacement sensor has flexibility, and the periphery of the magnetic ring is provided with an anchor claw. The magnetostrictive displacement sensor can accurately detect the movable displacement of the magnetic ring, and then measure the displacement of the top plate rock stratum; monitoring data can be automatically obtained through the magnetostrictive displacement sensor, real-time recording and displaying can be realized through the main control computer, and the use is very convenient; the utility model connects a plurality of magnetic rings in series, and is convenient to carry and recycle.
Description
Technical Field
The utility model relates to the technical field of coal mine and roadway construction, in particular to a roof separation instrument and a roof rock stratum movement monitoring device which are convenient to use.
Background
In the process of coal mine resource mining, the tunneling operation can destroy the balance state of the coal rock mass, so that the surrounding rock mass is displaced, deformed and even destroyed, and because the stress of the mining surrounding rock mass on the working face is always in the process of dynamic change, the displacement and deformation of the rock mass are changed, so that the roof safety becomes the important factor of safety management. The rock mass displacement and deformation data are the basis of a plurality of parameters, and the accurate acquisition of the rock mass displacement and deformation data is an important guarantee for controlling the stability of the rock mass and ensuring the smooth development of the engineering. In recent years, roof separation roof collapse accidents in China have a considerable proportion, and the simplest method for daily monitoring of the coal mine roof is roof separation instrument observation, so that the stability of the roadway roof is judged through the displacement difference of different levels of the roof.
In the use of roof delamination apparatus, two properties of the apparatus are of primary concern: firstly, the accuracy of equipment, secondly the promptness of equipment, these two aspects can direct influence the monitoring effect to roof separation layer displacement.
The existing roof separation instrument mainly comprises a deep and shallow base point anchor, a steel wire rope, a tensioning screw, a long and short measuring cylinder, a scale indicating ring and the like.
The monitoring principle is as follows: the deep-base anchor is fixed in a stable rock stratum at the position 5 meters deep in a drill hole, and the shallow-base anchor is fixed at the position 2-2.5 meters (the end position of a drill rod) in the drill hole. When the anchor rod has a separation layer in the anchoring range, the top plate (vernier) moves inwards along the long measuring cylinder and the short measuring cylinder, and the movement amount is indicated by the scale indicating ring on the measuring cylinder. When the roof of the anchoring range is separated from the layer, the relative position of the long measuring cylinder and the roof is unchanged, but the long measuring cylinder slides inwards along the short measuring cylinder, the roof is indicated to have the separated layer, and the separated layer amount is indicated by a ruler of the short measuring cylinder. When the separation layer is arranged in the anchoring range of the anchor rod and outside the anchoring range of the anchor rod, the separation layer display is respectively arranged on the long measuring cylinder and the short measuring cylinder.
The existing roof separation layer instrument adopts bitter reading indication, so that observation and measurement are inconvenient and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides a roof separation instrument and a roof rock stratum movement monitoring device which are convenient to use in order to solve the technical problems.
The utility model is realized by the following technical scheme:
a top plate delamination apparatus convenient to use comprises a magnetostrictive displacement sensor and at least two magnetic rings; the magnetic ring is provided with a through hole for the magnetostrictive displacement sensor to pass through.
Further, the magnetostrictive displacement sensor has flexibility.
Furthermore, flukes are arranged on the periphery of the magnetic ring.
Furthermore, the top plate separation instrument convenient to use also comprises a main control computer which can be connected with the magnetostrictive displacement sensor.
Furthermore, the top plate separation layer instrument convenient to use also comprises an orifice fixer, and the orifice fixer is provided with a screw hole and a through hole for the magnetostrictive displacement sensor to pass through.
Furthermore, the magnetic rings are connected in series through the flexible connecting parts.
Further, roof separation layer appearance convenient to use still includes the protective case that is used for the partial magnetostrictive displacement sensor in the protective hole, and the external diameter of protective case matches with the internal diameter of the through-hole on the drill way fixer.
The roof strata movement monitoring device comprises a support frame and the roof separation instrument convenient to use; the support frame comprises a tray, a lifting support and a base, the bottom of the lifting support is connected with the base, and the top of the lifting support is connected with the tray; the tray is provided with a wire groove or a threading hole which is matched with the magnetostrictive displacement sensor.
Furthermore, the lifting support comprises at least two telescopic rods, the bottoms of the telescopic rods are connected with the base, and the tops of the telescopic rods are movably connected with the tray. The lifting support with the structure is applicable to drilling holes at different angles, and is wide in application range and high in practicability.
Furthermore, roof separation layer appearance convenient to use still includes the automatic spooler that can be connected with the main control computer, magnetostrictive displacement sensor twines on the reel of automatic spooler. The magnetostrictive displacement sensor can be automatically retracted and released, and the burden of operators can be reduced.
Compared with the prior art, the utility model has the following beneficial effects:
1. the magnetostrictive displacement sensor can accurately detect the movable displacement of the magnetic ring, and then measure the displacement of the top plate rock stratum; monitoring data can be automatically obtained through the magnetostrictive displacement sensor, real-time recording and displaying can be realized through the main control computer, and the use is very convenient;
2. the support frame can support the magnetostrictive displacement sensor, so that the position of the magnetostrictive displacement sensor is kept stable, the accuracy of data is guaranteed, and the labor intensity can be reduced;
3. the utility model can be suitable for drilling holes at different angles, and has wide application range and strong practicability;
4. the extension and the recovery of the magnetostrictive displacement sensor are driven by the automatic wire rewinding device, so that the burden of operators can be reduced;
5. a protective sleeve is arranged outside the insertion section of the magnetostrictive displacement sensor, so that the magnetostrictive displacement sensor can be protected, rock fragment sharp corners in a drill hole are prevented from damaging the magnetostrictive displacement sensor, and inaccurate data are prevented;
6. the utility model connects a plurality of magnetic rings in series, and is convenient to carry and recycle.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model.
FIG. 1 is a schematic structural diagram of a top plate delamination apparatus convenient to use in accordance with one embodiment;
FIG. 2 is a schematic diagram of the structure of a roof strata movement monitoring device;
FIG. 3 is a schematic view of a first type of tray;
FIG. 4 is a schematic view of a second tray;
FIG. 5 is a schematic view of a third tray;
FIG. 6 is a schematic view of a fourth tray;
FIG. 7 is a schematic view of a lift bracket with adjustable tilt;
FIG. 8 is a schematic structural view of a top plate delamination apparatus which can be advantageously used in the second embodiment;
fig. 9 is a schematic structural view of a top plate delamination apparatus which is convenient to use in the third embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience in describing and simplifying the present invention, but do not indicate or imply that the devices or elements that are referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1, the top plate delamination apparatus convenient to use disclosed in this embodiment includes at least two magnetic rings 3 and a matched magnetostrictive displacement sensor 6.
A first through hole 32 is reserved in the middle of the magnetic ring 3 and is used for the magnetostrictive displacement sensor 6 to pass through.
The magnetostrictive displacement sensor 6 is similar to a corrugated pipe in shape, has flexibility, and has certain flexibility and rigidity.
The periphery of the magnetic ring 3 is provided with an anchor fluke 31, and the outer diameter of the anchor fluke 31 is larger than the diameter of the drill hole 2. Fluke 31 has a certain elasticity and can be firmly anchored to the wall of the hole after being fed into borehole 2.
The magnetostrictive displacement sensor 6 is connected with the main control machine 14, current can be released through the main control machine 14, the current is transmitted in the magnetostrictive displacement sensor 6, a magnetic field around the magnetic ring 3 is found, and a top plate separation layer signal is transmitted into the main control machine 14 and recorded.
In order to prevent the magnetic ring 3 from falling out due to the change of the diameter of the drilled hole, the top plate delamination apparatus further comprises an orifice fixer 7, a screw hole and a second through hole for the magnetostrictive displacement sensor 6 to pass through are formed in the orifice fixer 7, and the second through hole is located in the center of the orifice fixer 7. The orifice holder 7 is fixed to the roof strata by screws 8, and the magnetostrictive displacement sensor 6 is passed through the orifice holder 7.
Because the roof drilling is mostly the deep hole, and the drilling is close perpendicular, for avoiding when installation magnetostrictive displacement sensor 6, magnetostrictive displacement sensor 6's weight is whole to be supported on the operating personnel. As shown in fig. 2, the roof strata movement monitoring device of the utility model comprises a support frame and the roof separation instrument which is convenient to use.
The support frame is used for guiding and supporting the position of the telescopic displacement sensor 6. The support frame includes tray 9, lifting support 10 and base 11, and lifting support 10 bottom is connected with base 11, and lifting support 10 top is connected with tray 9. The construction of the lifting bracket 10 can be selected and designed according to the needs of the experimenter, such as a hydraulic lifting bracket.
As shown in fig. 3-6, the tray 9 has a wire groove or threading hole adapted to the magnetostrictive displacement sensor 6. The magnetostrictive displacement sensor 6 is preferably in clearance fit with the wire groove or the threading hole.
As shown in fig. 3, a C-shaped groove 91 may be formed on the top surface of the tray 9 to form a wire groove, and when in use, the magnetostrictive displacement sensor 6 may be inserted into the C-shaped groove 91 from the opening of the C-shaped groove 91;
as shown in fig. 4, a C-shaped pipe 93 is also attached to the top surface of the tray 9 to form a raceway for use.
As shown in fig. 5, a through hole 92 may be formed in the tray 9 to form a threading hole, and when in use, the magnetostrictive displacement sensor 6 may be inserted into one end of the through hole 92 and then be pulled out from the other end;
as shown in fig. 6, a pipe 94 may be mounted on the tray 9 to form a threading hole. In order to facilitate free dragging, rollers can be mounted on the base 11.
In order to adapt to drilling holes with different inclination angles, as shown in fig. 7, the lifting support 10 comprises at least two telescopic rods 101, the bottoms of the telescopic rods 101 are connected with the base, and the tops of the telescopic rods 101 are movably connected with the tray 9. The inclination of the tray 9 can be adjusted by adjusting the height difference of the telescopic rod 101. The lifting bracket 10 of this embodiment has three telescopic rods 101.
Specifically, a straight groove 90 is formed in the back of the tray 9, and the top of one telescopic rod 101 is rotatably connected with the back of the tray 9 through a shaft 103; the top of the other two telescopic rods 101 is provided with a roller 102, and the roller 102 is arranged in the straight groove 90.
In order to realize the automatic retraction of the magnetostrictive displacement sensor 6, an automatic wire rewinding device 12 can be additionally arranged. The automatic wire rewinding device 12 comprises a winding drum, an automatic wire rewinding device and a motor, wherein the winding drum is rotatably arranged on a winding drum support, and the winding drum is driven by the motor to realize automatic wire rewinding and wire rewinding. The power adopts the coal security protection to explode the power, can use in the pit.
The magnetostrictive displacement sensor 6 is wound on the drum of the automatic take-up 12.
The automatic wire rewinding device 12 and the magnetostrictive displacement sensor 6 are both connected with the main control machine 14. The main control machine 14 can control the action of the drum motor, and the outward release and the recovery of the magnetostrictive displacement sensor 6 are realized. Meanwhile, the current can be released through the main control computer, the current is transmitted in the magnetostrictive displacement sensor 6, a magnetic field around the magnetic ring 3 is found, and a top plate separation layer signal is transmitted into the main control computer 14 and recorded.
In this embodiment, the automatic winding device 12 is connected to the main control machine 14 through a cable 13.
The using method of the utility model is as follows:
(1) two magnetic rings 3 are arranged in the drill hole 2;
(2) the orifice fixer 7 is screwed with the roof rock stratum by a screw 8;
(3) the automatic wire-rewinding device 12 is arranged below the orifice fixer 7 and discharges a section of magnetostrictive displacement sensor 6;
(4) the magnetostrictive displacement sensor 6 passes through a wire slot or a threading hole on the tray 9;
the free end of the magnetostrictive displacement sensor 6 sequentially passes through the orifice fixer 7 and the magnetic ring 3 and extends into the drill hole 2;
(5) adjusting the lifting support 10 to a proper position, and adjusting the automatic wire rewinding device 12 to stabilize the position of the magnetostrictive displacement sensor 6;
(6) and the magnetostrictive displacement sensor 6 is connected with the main control machine 14 for monitoring.
Example two
For convenience of carrying and recycling, the present embodiment connects all the magnetic rings 3 in one bore 2 in series with a flexible connecting member 4, as shown in fig. 8.
When the monitoring is finished, the flexible connecting part 4 is pulled, all the magnetic rings 3 can be quickly pulled out of the drill hole 2, and the use is convenient.
In another embodiment, the outermost magnetic ring 3 may also be connected to the orifice holder 7 with a flexible connecting member 4.
The flexible connecting member 4 may be a wire rope.
The embodiment can realize the recycling of the magnet ring 3 in the hole, and avoid the waste of manpower and material resources; meanwhile, the pollution to the underground environment caused by the inner magnetic ring 3 left in the hole can be avoided.
EXAMPLE III
The difference between this embodiment and the first or second embodiment is: as shown in fig. 9, the magnetostrictive displacement sensor 6 is provided with a protective sleeve 5, and the length of the protective sleeve 5 is set according to the drilling depth.
The outer diameter of the protective sleeve 5 is adapted to the inner diameter of the second through hole in the orifice holder 7, or the outer diameter of the protective sleeve 5 is adapted to the inner diameter of the first through hole 32 in the magnetic ring 3. The protective sleeve 5 can be held stable in its relative position by virtue of its friction with the bore wall.
After the magnetic ring 3 and the orifice fixer 7 are installed, the protective sleeve 5 penetrates through the orifice fixer 7 and the magnetic ring 3, and then the magnetostrictive displacement sensor 6 extends into the drill hole 2 from the protective sleeve 5.
The protection sleeve 5 has two benefits: firstly, the magnetostrictive displacement sensor 6 can be protected, the magnetostrictive displacement sensor 6 is prevented from being exposed in a drilled hole, and rock fragment sharp corners and dust in the drilled hole are prevented from damaging the magnetostrictive displacement sensor 6; secondly, the protective sleeve 5 can guide the magnetostrictive displacement sensor 6 to rapidly pass through the orifice fixer 7 and the magnetic ring 3.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a roof separation layer appearance convenient to use which characterized in that: the device comprises an orifice fixer, a magnetostrictive displacement sensor and at least two magnetic rings; the magnetic ring is provided with a through hole for the magnetostrictive displacement sensor to pass through, and the orifice fixer is provided with a screw hole and a through hole for the magnetostrictive displacement sensor to pass through.
2. A top plate delamination apparatus for use according to claim 1 further comprising: the magnetostrictive displacement sensor has flexibility.
3. A top plate delamination apparatus for use according to claim 1 or 2 wherein: and the periphery of the magnetic ring is provided with an anchor claw.
4. A top plate delamination apparatus for use according to claim 1 or 2 wherein: the device also comprises a main control machine which can be connected with the magnetostrictive displacement sensor.
5. A top plate delamination apparatus for use according to claim 1 or 2 wherein: the magnetic rings are connected in series through the flexible connecting part.
6. A top plate delamination apparatus for use according to claim 1 or 2 wherein: the hole opening fixer is characterized by further comprising a protective sleeve for protecting a part of the magnetostrictive displacement sensor in the hole, wherein the outer diameter of the protective sleeve is matched with the inner diameter of the through hole in the hole opening fixer.
7. Roof stratum removal monitoring devices, its characterized in that: a top plate delamination apparatus comprising a support frame and a convenient to use apparatus as claimed in any one of claims 1 to 6; the support frame comprises a tray, a lifting support and a base, the bottom of the lifting support is connected with the base, and the top of the lifting support is connected with the tray; the tray is provided with a wire groove or a threading hole which is matched with the magnetostrictive displacement sensor.
8. The roof strata movement monitoring device of claim 7, wherein: the lifting support comprises at least two telescopic rods, the bottoms of the telescopic rods are connected with the base, and the tops of the telescopic rods are movably connected with the tray.
9. The roof strata movement monitoring device of claim 7 or 8, wherein: the automatic winding machine further comprises an automatic winding machine which can be connected with the main control machine, and the magnetostrictive displacement sensor is wound on a winding drum of the automatic winding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120881445.0U CN215639254U (en) | 2021-04-27 | 2021-04-27 | Roof separation layer appearance and roof rock stratum mobile monitoring device convenient to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120881445.0U CN215639254U (en) | 2021-04-27 | 2021-04-27 | Roof separation layer appearance and roof rock stratum mobile monitoring device convenient to use |
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| Publication Number | Publication Date |
|---|---|
| CN215639254U true CN215639254U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120881445.0U Active CN215639254U (en) | 2021-04-27 | 2021-04-27 | Roof separation layer appearance and roof rock stratum mobile monitoring device convenient to use |
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| Country | Link |
|---|---|
| CN (1) | CN215639254U (en) |
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2021
- 2021-04-27 CN CN202120881445.0U patent/CN215639254U/en active Active
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