CN210599111U - Mine tunnel roof separation monitoring devices based on displacement sensor - Google Patents
Mine tunnel roof separation monitoring devices based on displacement sensor Download PDFInfo
- Publication number
- CN210599111U CN210599111U CN201921432550.5U CN201921432550U CN210599111U CN 210599111 U CN210599111 U CN 210599111U CN 201921432550 U CN201921432550 U CN 201921432550U CN 210599111 U CN210599111 U CN 210599111U
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- main
- auxiliary
- pins
- displacement sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model relates to a mine tunnel roof separation monitoring devices based on displacement sensor. The technical scheme is as follows: the lower end of the main sectional anchor rod (1) is in threaded connection with the upper end of the anchor rod sleeve (2), and the lower end of the anchor rod sleeve (2) is fixedly connected with the sleeve base (5); a displacement sensor (3) is arranged on the lower end face of the main sectional anchor rod (1), a hollow metal rod (4) is fixedly connected with the displacement sensor (3) through a screw, and the lower end of the hollow metal rod (4) penetrates through the sleeve base (5) to be connected with a tray (8); the auxiliary sectional anchor rods (7) penetrate through the strip-shaped holes on the two sides of the tray (8) and are connected with the tray (8). The lower plane of tray (8) is installed data processing terminal (9) and audible-visual annunciator (10), and the signal transmission line of displacement sensor (3) passes hollow metal pole (4) and is connected with data processing terminal (9), and data processing terminal (9) are connected with audible-visual annunciator (10). The utility model discloses easily installation, easy maintenance, accuracy height, good reliability, monitoring range are big, can real-time supervision, real-time data transmission and can early warning in advance.
Description
Technical Field
The utility model belongs to the real-time supervision and the early warning device field in mine tunnel. In particular to a mine roadway roof separation monitoring device based on a displacement sensor.
Background
In underground mining, the separation and deformation damage of a top plate rock mass or a filling body of a roadway or a stope are one of the main potential safety hazards of the underground mine. With the development of science and technology, more and more new technologies are applied to the production and construction of mines, safety accidents possibly occurring in the mining process of the mines are effectively prevented, and particularly, the deformation damage condition of the roadway or the stope can be effectively predicted through the deformation monitoring of the surrounding rock of the roadway or the stope, so that the technical support is provided for the safe production of underground mines.
If "a tunnel roof fall monitors early warning appearance" (CN 202274954U) patent technology, although this technique can accomplish stock atress and absciss layer phenomenon simultaneously and monitor, can read on-the-spot stock atress and absciss layer data in real time, nevertheless because the instrument structure is meticulous complicated, difficult installation and operation are difficult for adapting to complicated changeable environment in underground, and easily produce the maloperation, so can not monitor the absciss layer phenomenon of mine tunnel roof accurately.
As for the patent technologies of a roadway roof deformation early warning device (CN 106351696B) and a roof separation instrument (CN201320311166.6), the device design of the patent technology is simple in structure and easy to install and maintain, but the early warning accuracy is not high, and the device cannot perform targeted monitoring on an area where separation easily occurs according to the underground field conditions, and cannot perform real-time data monitoring and transmission, and cannot realize real-time monitoring and early warning of a networked safety system.
Disclosure of Invention
The utility model aims at overcoming the prior art defect, aim at provides an easily installation, easy maintenance, and the accuracy is high, the good reliability, can real-time supervision and real-time data transmission, the mine tunnel roof absciss layer monitoring devices based on displacement sensor that can advance the early warning.
In order to achieve the above object, the utility model adopts the following technical scheme:
the device comprises a main sectional anchor rod, an anchor rod sleeve, a displacement sensor, a hollow metal rod, a sleeve base, an auxiliary sectional anchor rod, a disc, a tray, a data processing terminal and an audible and visual alarm.
The tray is a cuboid, a central hole is formed in the center of the cuboid, and strip-shaped holes are symmetrically formed in two sides of the central hole.
The lower end of the main sectional anchor rod is in threaded connection with the upper end of the anchor rod sleeve, and the lower end of the anchor rod sleeve is fixedly connected with the sleeve base; a displacement sensor is arranged at the center of the lower end face of the main segmental anchor rod, the upper end of the hollow metal rod is fixedly connected with the lower end of the displacement sensor through a screw, and the lower end of the hollow metal rod penetrates through the center hole of the sleeve base and is fixedly connected with the tray through a nut; the auxiliary sectional anchor rods penetrate through the strip-shaped holes on the two sides of the tray and are fixedly connected with the tray through nuts.
A data processing terminal and an audible and visual alarm are arranged on the lower plane of the tray; and a signal transmission line of the displacement sensor penetrates through the hollow metal rod to be connected with a data processing terminal, and the data processing terminal is connected with the audible and visual alarm.
The data processing terminal comprises a transceiving module, a single chip microcomputer, a lithium battery power supply module, a serial clock chip, a state selection dial switch, a hardware watchdog chip, an EEPROM storage chip, a crystal nixie tube and a signal transmission module.
Output ends RXD1 and TXD1 of the transceiver module are correspondingly connected with input ends TXD1 and RXD1 of the singlechip; pins P0.0-P0.7 of the single chip microcomputer are correspondingly connected with pins DB 0-DB 7 of a lithium battery power supply module, pins P1.0 and P1.1 of the single chip microcomputer are correspondingly connected with pins SCL2 and SDA2 of a serial clock chip, pins P1.2-P1.7 of the single chip microcomputer are correspondingly connected with pins SW 0-SW 5 of a state selection dial switch, pins RES and P2.0 of the single chip microcomputer are correspondingly connected with pins RES and WDT of a hardware watchdog chip, pins P2.1 and P2.2 of the single chip microcomputer are correspondingly connected with pins SCL1 and SDA1 of an EEPROM memory chip, pins P4.0-P4.7 of the single chip microcomputer are correspondingly connected with ports a-g of a crystal nixie tube, pins TXP 2.3-P2.6 of the single chip microcomputer are correspondingly connected with ports WEL 1-WEL 4 of the crystal nixie tube, and pins D and RXDD of a signal transmission module are correspondingly connected with pins RXDD and RXDD; the signal transmission module is externally connected with an upper computer on the well by adopting a ZigBee technology.
The input end a of the transceiver module is connected with the output end Va of the displacement sensor, and the pins TXD2 and RXD2 of the singlechip are correspondingly connected with the pins RXD2 and TXD2 of the audible and visual alarm.
The main middle anchor rod is 0-2 sections; the main sectional anchor rod has the same diameter of each section, and the main sectional anchor rod is connected with each other through threads.
The top of the main top anchor rod is conical, a large thread or a barb is arranged on the rod body close to the upper part of the conical top anchor rod, and a screw hole is arranged at the center of the lower end surface of the main top anchor rod; a stud is arranged at the center of the upper end face of the main middle anchor rod, and a screw hole is arranged at the center of the lower end face of the main middle anchor rod; the center of the upper end face of the main tail anchor rod is provided with a stud, the lower portion of the main tail anchor rod is provided with an external thread, and the center of the lower end face of the main tail anchor rod is provided with a universal joint screw hole.
The anchor rod sleeve is in a circular tube shape, the length of the anchor rod sleeve is 450-2450 mm, and the wall thickness of the circular tube is 5-10 mm; the upper part of the circular tube is provided with internal threads, and the nominal size of the internal threads on the upper part of the circular tube is the same as that of the external threads of the tail anchor rod of the main sectional anchor rod; the lower extreme of pipe is equipped with the external screw thread, and the external screw thread of pipe lower extreme is the same with the internal thread nominal size of sleeve base.
The sleeve base is an integral body formed by a circular ring and a circular plate with the same outer diameter, and the inner wall of the circular ring is provided with internal threads.
The auxiliary sectional anchor rods sequentially comprise an auxiliary top section anchor rod, an auxiliary middle section anchor rod and an auxiliary tail section anchor rod from top to bottom, and the number of the auxiliary middle section anchor rods is 0-2; the diameters of all sections of the auxiliary sectional anchor rods are the same, and the auxiliary sectional anchor rods are connected through threads.
The structure of the auxiliary top section anchor rod and the auxiliary middle section anchor rod of the auxiliary sectional anchor rod is the same as that of the main top section anchor rod and the main middle section anchor rod corresponding to the main sectional anchor rod, a stud is arranged at the middle position of the upper end of the auxiliary tail section anchor rod, an external thread is upwards arranged on the auxiliary tail section anchor rod from the lower end, and the length of the external thread is 0.7-0.8 times that of the rod body of the auxiliary tail section anchor rod.
The utility model discloses a use method is:
firstly, sequentially assembling an auxiliary top section anchor rod, an auxiliary middle section anchor rod and an auxiliary tail section anchor rod of an auxiliary sectional anchor rod from top to bottom, and sequentially assembling a main top section anchor rod, a main middle section anchor rod and a main tail section anchor rod of a main sectional anchor rod from top to bottom; and then, a displacement sensor is arranged in a universal joint screw hole on the lower end surface of a main tail anchor rod of the main sectional anchor rod, the upper end of a hollow metal rod is in screw connection with the lower end of the displacement sensor, the lower end of the main tail anchor rod of the main sectional anchor rod is in threaded connection with the upper end of an anchor rod sleeve, the lower end of the anchor rod sleeve is fixedly connected with a sleeve base, and a signal transmission line of the displacement sensor penetrates through the hollow metal rod.
Then, drilling a main anchor rod hole at a position needing to be detected on the mine roadway roof, symmetrically drilling auxiliary anchor rod holes at two sides of the main anchor rod hole, and connecting the hole centers of the three anchor rod holes into the same straight line; the depth of the auxiliary segmental anchor rod into the hole is based on the position of a disc, and the disc is arranged at the tail end of a top segmental anchor rod of the auxiliary segmental anchor rod; then the main sectional anchor rod is driven into the main anchor rod hole, and the auxiliary sectional anchor rods are respectively driven into the auxiliary anchor rod holes at the two sides. Then, the two auxiliary segmental anchor rods respectively penetrate through the strip-shaped holes corresponding to the two sides of the tray, the hollow metal rod penetrates through the center hole of the tray, the tray moves up and down to enable the displacement sensor to be adjusted to the initial position, and nuts of the hollow metal rod and nuts of the auxiliary segmental anchor rods are sequentially screwed down.
When the separation phenomenon occurs in the middle area of the horizontal plane where the top point of the main top anchor rod of the main subsection anchor rod is located and the horizontal plane where the top point of the auxiliary top anchor rod of the auxiliary subsection anchor rod is located, the main subsection anchor rod fixed on the deep layer of the mine roadway top plate cannot move, the auxiliary subsection anchor rod fixed on the shallow layer of the mine roadway top plate moves along with the rock body of the separation layer, the tray and the hollow metal rod are pulled, the displacement of the tray and the hollow metal rod can enable the displacement sensor to transmit displacement signals to the data processing terminal through a signal transmission line in the hollow metal rod, the data processing terminal displays the displacement change value in real time through a crystal nixie tube on one hand, and on the other hand, the displacement signals are transmitted to an upper computer on the well through the signal transmission module, and the purpose of. When the displacement value monitored by the displacement sensor exceeds a threshold set by site workers by taking a mine roadway roof separation critical value as a reference, the singlechip of the data processing terminal can automatically make the audible and visual alarm give an alarm.
Since the proposal is adopted, the utility model discloses following positive effect has:
the utility model can select the main sectional anchor rod and the auxiliary sectional anchor rod to be driven into different depths of the mine tunnel roof according to the actual situation on site, and can monitor the region of the mine tunnel roof which is easy to have separation layers in real time in a more targeted manner; the utility model discloses a connection between each spare part adopts threaded connection more, easily installs, is convenient for maintain.
The utility model discloses the monitoring to mine tunnel roof displacement mainly realizes through the sub-segmental anchor rod pulling displacement sensor of shallow rock mass department, and the monitoring data precision is high; the displacement range of monitoring mine tunnel roof separation phenomenon is big and repeatability precision is high: the displacement range is 0-1000 mm, and the repeatability precision is 0.01 mm.
The data processing terminal of the utility model comprises a signal transmission module, a crystal nixie tube and a single chip microcomputer, so that the monitoring data can be displayed and transmitted in real time, different alarm thresholds can be set according to different mine environments, and the application range is wide; the single chip in the data processing terminal can automatically make the audible and visual alarm give an alarm, and full-automatic intelligent monitoring and early warning are realized.
Therefore, the utility model has the characteristics of easily installation, easy maintenance, accuracy height, good reliability, monitoring range are big, can real-time supervision, real-time data transmission and can early warning in advance, be applicable to the real-time supervision early warning of mine tunnel roof absciss layer.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the tray 8 of FIG. 1;
fig. 3 is a system diagram of the data processing terminal 9 in fig. 1;
fig. 4 is a schematic view of the shape of the main roof bolt of the main sectional bolt 1 of fig. 1;
fig. 5 is a schematic view of the shape of the main intermediate anchor rod 1 in fig. 1;
fig. 6 is a schematic view of the shape of the main tail anchor rod of the main sectional anchor rod 1 in fig. 1;
fig. 7 is an enlarged schematic view of the shape of the secondary top anchor of the secondary segmental anchor 7 in fig. 1;
fig. 8 is an enlarged schematic view of the shape of the sub-intermediate anchor rod of the sub-sectional anchor rod 7 in fig. 1;
fig. 9 is an enlarged schematic view of the shape of the secondary tail anchor of the secondary segmented anchor 7 of fig. 1.
Detailed Description
The invention is further described with reference to the following figures and detailed description, without limiting its scope.
Example 1
A mine roadway roof separation monitoring device based on a displacement sensor. As shown in fig. 1, the anchor rod comprises a main sectional anchor rod 1, an anchor rod sleeve 2, a displacement sensor 3, a hollow metal rod 4, a sleeve base 5, an auxiliary sectional anchor rod 7, a disc 6, a tray 8, a data processing terminal 9 and an audible and visual alarm 10.
As shown in fig. 2, the tray 8 is a cuboid, a central hole is formed in the center of the cuboid, and strip-shaped holes are symmetrically formed in two sides of the central hole.
As shown in fig. 1, the lower end of the main sectional anchor rod 1 is in threaded connection with the upper end of the anchor rod sleeve 2, and the lower end of the anchor rod sleeve 2 is fixedly connected with the sleeve base 5; a displacement sensor 3 is arranged at the center of the lower end face of the main segmental anchor rod 1, the upper end of a hollow metal rod 4 is fixedly connected with the lower end of the displacement sensor 3 through a screw, and the lower end of the hollow metal rod 4 penetrates through the center hole of the sleeve base 5 and is fixedly connected with a tray 8 through a nut; the auxiliary segmental anchor rods 7 penetrate through the strip-shaped holes on the two sides of the tray 8 and are fixedly connected with the tray 8 through nuts.
As shown in fig. 1, a data processing terminal 9 and an audible and visual alarm 10 are mounted on the lower plane of the tray 8; the signal transmission line of the displacement sensor 3 passes through the hollow metal rod 4 and is connected with the data processing terminal 9, and the data processing terminal 9 is connected with the audible and visual alarm 10.
As shown in fig. 3, the data processing terminal 9 includes a transceiver module 11, a single-chip microcomputer 18, a lithium battery power supply module 13, a serial clock chip 14, a state selection dial switch 15, a hardware watchdog chip 16, an EEPROM memory chip 17, a transistor nixie tube 19, and a signal transmission module 12.
As shown in fig. 3, the output terminals RXD1 and TXD1 of the transceiver module 11 are correspondingly connected with the input terminals TXD1 and RXD1 of the single chip microcomputer 18; pins P0.0-P0.7 of the single chip microcomputer 18 are correspondingly connected with pins DB 0-DB 7 of the lithium battery power supply module 13, pins P1.0 and P1.1 of the single chip microcomputer 18 are correspondingly connected with pins SCL2 and SDA2 of the serial clock chip 14, pins P1.2-P1.7 of the single chip microcomputer 18 are correspondingly connected with pins SW 0-SW 5 of the state selection dial switch 15, pins RES and P2.0 of the single chip microcomputer 18 are correspondingly connected with pins RES and WDT of the hardware watchdog chip 16, pins P2.1 and P2.2 of the single chip microcomputer 18 are correspondingly connected with pins SCL1 and SDA1 of the EEPROM memory chip 17, pins P4.0-SDA 4.7 of the single chip microcomputer 18 are correspondingly connected with ports a-g of the crystal nixie 19, pins P2.3-P2.6 of the single chip microcomputer 18 are correspondingly connected with ports WEL 1-XL 4 of the crystal nixie tube 19, and pins RXDD 12 and TXDD transmission module are correspondingly connected with pins RXDD transmission module; the signal transmission module 12 is externally connected with an upper computer on the well by adopting a ZigBee technology.
As shown in fig. 3, the input end a of the transceiver module 11 is connected to the output end Va of the displacement sensor 3, and the pins TXD2 and RXD2 of the single chip microcomputer 18 are correspondingly connected to the pins RXD2 and TXD2 of the audible and visual alarm 10.
As shown in fig. 1, the anchor rod sleeve 2 is in a circular tube shape, the length of the anchor rod sleeve is 450-1450 mm, and the wall thickness of the circular tube is 5-8 mm; the upper part of the circular tube is provided with internal threads, and the nominal size of the internal threads on the upper part of the circular tube is the same as that of the external threads of the tail anchor rod of the main sectional anchor rod 1; the lower extreme of pipe is equipped with the external screw thread, and the external screw thread of pipe lower extreme is the same with the internal thread nominal size of sleeve base 5.
The sleeve base 5 is a whole formed by a circular ring and a circular plate with the same outer diameter, and the inner wall of the circular ring is provided with internal threads.
As shown in fig. 1, the main multi-section anchor rod 1 comprises a main top section anchor rod, a main middle section anchor rod and a main tail section anchor rod from top to bottom in sequence, wherein the main middle section anchor rod is 0 section; the main segmental anchor rods 1 are the same in diameter of each segment, and the main segmental anchor rods 1 are connected through threads among the segments.
As shown in fig. 4, the top of the main top anchor rod is conical, a large thread or a barb is arranged on the rod body close to the upper part of the conical top anchor rod, and a screw hole is arranged at the center of the lower end surface of the main top anchor rod; as shown in fig. 5, a stud is arranged at the center of the upper end surface of the main middle anchor rod, and a screw hole is arranged at the center of the lower end surface of the main middle anchor rod; as shown in fig. 6, a stud is arranged at the center of the upper end surface of the main tail anchor rod, an external thread is arranged at the lower part of the main tail anchor rod, and a universal joint screw hole is arranged at the center of the lower end surface of the main tail anchor rod.
As shown in fig. 1, the auxiliary sectional anchor rod 7 is composed of an auxiliary top sectional anchor rod, an auxiliary middle sectional anchor rod and an auxiliary tail sectional anchor rod from top to bottom in sequence, and the auxiliary middle sectional anchor rod is 0 section; the diameters of all sections of the auxiliary sectional anchor rods 7 are the same, and all sections of the auxiliary sectional anchor rods 7 are connected through threads.
As shown in fig. 7 to 9, the auxiliary top anchor rod and the auxiliary middle anchor rod of the auxiliary sectional anchor rod 7 have the same structure as the main top anchor rod and the main middle anchor rod corresponding to the main sectional anchor rod 1, a stud is arranged at the middle position of the upper end of the auxiliary tail anchor rod, an external thread is arranged on the auxiliary tail anchor rod from the lower end to the upper part, and the length of the external thread is 0.7 to 0.8 times of that of the rod body of the auxiliary tail anchor rod.
The embodiment is used for a metal mine in China, and the specific use method is as follows. Firstly, assembling an auxiliary top section anchor rod and an auxiliary tail section anchor rod of an auxiliary sectional anchor rod 1, and assembling a main top section anchor rod and a main tail section anchor rod of a main sectional anchor rod 1; and then the displacement sensor 3 is arranged in a universal joint screw hole on the lower end surface of the main tail anchor rod of the main segmental anchor rod 1, the upper end of the hollow metal rod 4 is in screw connection with the lower end of the displacement sensor 3, the lower end of the main tail anchor rod of the main segmental anchor rod 1 is in threaded connection with the upper end of the anchor rod sleeve 2, the lower end of the anchor rod sleeve 2 is fixedly connected with the sleeve base 5, and a signal transmission line of the displacement sensor 3 penetrates through the hollow metal rod 4.
As shown in fig. 1, then, drilling a main anchor rod hole at a position to be detected of a mine roadway roof, symmetrically drilling auxiliary anchor rod holes at two sides of the main anchor rod hole, and connecting the hole centers of the three anchor rod holes into a same straight line; the depth of the auxiliary sectional anchor rod 7 into the hole is based on the position of the disc 6, and the disc 6 is arranged at the tail end of the top sectional anchor rod of the auxiliary sectional anchor rod 7; then the main sectional anchor rod 1 is driven into the main anchor rod hole, and the auxiliary sectional anchor rods 7 are respectively driven into the auxiliary anchor rod holes at the two sides. Then, two sub-segmental anchor rods 7 respectively penetrate through the strip-shaped holes corresponding to two sides of the tray 8, the hollow metal rod 4 penetrates through the center hole of the tray 8, the tray 8 moves up and down to enable the displacement sensor 3 to be adjusted to the initial position, and nuts of the hollow metal rod 4 and nuts of the sub-segmental anchor rods 7 are sequentially screwed down.
When the separation phenomenon occurs in the middle area of the horizontal plane where the top point of the main top anchor rod of the main subsection anchor rod 1 is located and the horizontal plane where the top point of the auxiliary top anchor rod of the auxiliary subsection anchor rod 7 is located, the main subsection anchor rod 1 fixed on the deep layer of the mine roadway roof cannot move, the auxiliary subsection anchor rod 7 fixed on the shallow layer of the mine roadway roof moves along with the rock body of the separation layer, the tray 8 and the hollow metal rod 4 are pulled, the displacement of the tray 8 and the hollow metal rod 4 can enable the displacement sensor 3 to transmit displacement signals to the data processing terminal 9 through a signal transmission line in the hollow metal rod 4, on one hand, the data processing terminal 9 displays the displacement change value in real time through the crystal nixie tube 19, on the other hand, the displacement signals are transmitted to an upper computer on a well through the signal transmission module 12, and the purpose of real-. When the displacement value monitored by the displacement sensor 3 exceeds a threshold value set by a field worker by taking a mine roadway roof separation critical value as a reference, the singlechip 18 of the data processing terminal 9 can automatically make the audible and visual alarm 10 give an alarm.
Example 2
A mine roadway roof separation monitoring device based on a displacement sensor. This example is the same as example 1 except that:
the anchor rod sleeve 2 is in a circular tube shape, the length of the anchor rod sleeve is 1450-2450 mm, and the wall thickness of the circular tube is 7-10 mm.
The main multi-section anchor rod 1 sequentially comprises a main top section anchor rod, a main middle section anchor rod and a main tail section anchor rod from top to bottom, and the main middle section anchor rod is 1 section or 2 sections.
The auxiliary segmental anchor rods 7 are sequentially an auxiliary top segment anchor rod, an auxiliary middle segment anchor rod and an auxiliary tail segment anchor rod from top to bottom, and the auxiliary middle segment anchor rod is 1 segment or 2 segments.
The embodiment is used for a certain coal mine in China, and the specific use method is as follows: firstly, sequentially assembling an auxiliary top anchor rod of an auxiliary sectional anchor rod 1, 1 or 2 auxiliary middle anchor rods and an auxiliary tail anchor rod from top to bottom; and sequentially assembling the main top anchor rod of the main sectional anchor rod 1, the main middle anchor rod 1 or 2 and the main tail anchor rod from top to bottom. And then the displacement sensor 3 is arranged in a universal joint screw hole on the lower end surface of the main tail anchor rod of the main segmental anchor rod 1, the upper end of the hollow metal rod 4 is in screw connection with the lower end of the displacement sensor 3, the lower end of the main tail anchor rod of the main segmental anchor rod 1 is in threaded connection with the upper end of the anchor rod sleeve 2, the lower end of the anchor rod sleeve 2 is fixedly connected with the sleeve base 5, and a signal transmission line of the displacement sensor 3 penetrates through the hollow metal rod 4.
Then, drilling a main anchor rod hole at a position needing to be detected on the mine roadway roof, symmetrically drilling auxiliary anchor rod holes at two sides of the main anchor rod hole, and connecting the hole centers of the three anchor rod holes into the same straight line; the depth of the auxiliary sectional anchor rod 7 into the hole is based on the position of the disc 6, and the disc 6 is arranged at the tail end of the top sectional anchor rod of the auxiliary sectional anchor rod 7; then the main sectional anchor rod 1 is driven into the main anchor rod hole, and the auxiliary sectional anchor rods 7 are respectively driven into the auxiliary anchor rod holes at the two sides. Then, two sub-segmental anchor rods 7 respectively penetrate through the strip-shaped holes corresponding to two sides of the tray 8, the hollow metal rod 4 penetrates through the center hole of the tray 8, the tray 8 moves up and down to enable the displacement sensor 3 to be adjusted to the initial position, and nuts of the hollow metal rod 4 and nuts of the sub-segmental anchor rods 7 are sequentially screwed down.
When the separation phenomenon occurs in the middle area of the horizontal plane where the top point of the main top anchor rod of the main subsection anchor rod 1 is located and the horizontal plane where the top point of the auxiliary top anchor rod of the auxiliary subsection anchor rod 7 is located, the main subsection anchor rod 1 fixed on the deep layer of the mine roadway roof cannot move, the auxiliary subsection anchor rod 7 fixed on the shallow layer of the mine roadway roof moves along with the rock body of the separation layer, the tray 8 and the hollow metal rod 4 are pulled, the displacement of the tray 8 and the hollow metal rod 4 can enable the displacement sensor 3 to transmit displacement signals to the data processing terminal 9 through a signal transmission line in the hollow metal rod 4, on one hand, the data processing terminal 9 displays the displacement change value in real time through the crystal nixie tube 19, on the other hand, the displacement signals are transmitted to an upper computer on a well through the signal transmission module 12, and the purpose of real-. When the displacement value monitored by the displacement sensor 3 exceeds a threshold value set by a field worker by taking a mine roadway roof separation critical value as a reference, the singlechip 18 of the data processing terminal 9 can automatically make the audible and visual alarm 10 give an alarm.
The embodiment has the following positive effects:
according to the specific embodiment, the main sectional anchor rods 1 and the auxiliary sectional anchor rods 7 can be selected to be driven into different depths of the mine roadway roof according to the actual situation on site, and the real-time monitoring can be carried out on the region of the mine roadway roof where separation easily occurs in a targeted manner; the connection between each spare part of this device adopts threaded connection more, easily installs, is convenient for maintain.
The monitoring of the mine roadway roof displacement in the specific embodiment is mainly realized by pulling the displacement sensor 3 through the sub-segmental anchor rods 7 at the shallow rock mass, and the monitoring data precision is high; the displacement range of monitoring mine tunnel roof separation phenomenon is big and repeatability precision is high: the displacement range is 0-1000 mm, and the repeatability precision is 0.01 mm.
The data processing terminal 9 of the embodiment comprises a signal transmission module 12, a crystal nixie tube 19 and a single chip microcomputer 18, so that monitoring data can be displayed and transmitted in real time, different alarm thresholds can be set according to different mine environments, and the application range is wide; the singlechip 18 in the data processing terminal 9 can automatically make the audible and visual alarm 10 give an alarm, and full-automatic intelligent monitoring and early warning are realized.
Therefore, the method has the characteristics of easiness in installation, convenience in maintenance, high accuracy, strong reliability, large monitoring range, real-time monitoring and real-time data transmission capability and capability of early warning, and is suitable for real-time monitoring and early warning of mine roadway roof separation.
Claims (5)
1. A mine roadway roof separation monitoring device based on a displacement sensor is characterized by comprising a main segmental anchor rod (1), an anchor rod sleeve (2), a displacement sensor (3), a hollow metal rod (4), a sleeve base (5), an auxiliary segmental anchor rod (7), a disc (6), a tray (8), a data processing terminal (9) and a sound-light alarm (10);
the tray (8) is a cuboid, a central hole is formed in the center of the cuboid, and strip-shaped holes are symmetrically formed in two sides of the central hole;
the lower end of the main sectional anchor rod (1) is in threaded connection with the upper end of the anchor rod sleeve (2), and the lower end of the anchor rod sleeve (2) is fixedly connected with the sleeve base (5); a displacement sensor (3) is arranged at the center of the lower end face of the main sectional anchor rod (1), the upper end of the hollow metal rod (4) is fixedly connected with the lower end of the displacement sensor (3) through a screw, and the lower end of the hollow metal rod (4) penetrates through the center hole of the sleeve base (5) and is fixedly connected with the tray (8) through a nut; the auxiliary sectional anchor rods (7) penetrate through the strip-shaped holes on the two sides of the tray (8) and are fixedly connected with the tray (8) through nuts;
a data processing terminal (9) and a sound-light alarm (10) are arranged on the lower plane of the tray (8); a signal transmission line of the displacement sensor (3) penetrates through the hollow metal rod (4) to be connected with a data processing terminal (9), and the data processing terminal (9) is connected with an audible and visual alarm (10);
the data processing terminal (9) comprises a transceiving module (11), a singlechip (18), a lithium battery power supply module (13), a serial clock chip (14), a state selection dial switch (15), a hardware watchdog chip (16), an EEPROM memory chip (17), a transistor nixie tube (19) and a signal transmission module (12);
output ends RXD1 and TXD1 of the transceiver module (11) are correspondingly connected with input ends TXD1 and RXD1 of the singlechip (18); pins P0.0-P0.7 of the single chip microcomputer (18) are correspondingly connected with pins DB 0-DB 7 of a lithium battery power supply module (13), pins P1.0 and P1.1 of the single chip microcomputer (18) are correspondingly connected with pins SCL2 and SDA2 of a serial clock chip (14), pins P1.2-P1.7 of the single chip microcomputer (18) are correspondingly connected with pins SW 0-5 of a state selection dial switch (15), pins RES and P2.0 of the single chip microcomputer (18) are correspondingly connected with pins RES and WDT of a hardware watchdog chip (16), pins P2.1 and P2.2 of the single chip microcomputer (18) are correspondingly connected with pins SCL1 and SDA1 of an EEPROM storage chip (17), pins P4.0-P4.7 of the single chip microcomputer (18) are correspondingly connected with ports a-g of a nixietube (19), pins P2.3-P2.7 of the single chip microcomputer (18) are correspondingly connected with pins RXL 26 and RXD 12 of a crystal tube (19), and RXD 12) are correspondingly connected with pins RXDD 12 of a crystal tube (19) transmission module (RXDD 12) and a TXDD 12, The TXD is correspondingly connected, and the signal transmission module (12) is externally connected with an upper computer on the well by adopting a ZigBee technology;
an input end a of the transceiving module (11) is connected with an output end Va of the displacement sensor (3), and pins TXD2 and RXD2 of the singlechip (18) are correspondingly connected with pins RXD2 and TXD2 of the audible and visual alarm (10).
2. The mine roadway roof separation monitoring device based on the displacement sensor according to claim 1, characterized in that the main sectional anchor rod (1) comprises a main top sectional anchor rod, a main middle sectional anchor rod and a main tail sectional anchor rod from top to bottom in sequence, wherein the main middle sectional anchor rod is 0-2 sections; the diameters of all sections of the main sectional anchor rods (1) are the same, and all sections of the main sectional anchor rods (1) are connected through threads;
the top of the main top anchor rod is conical, a large thread or a barb is arranged on the rod body close to the upper part of the conical top anchor rod, and a screw hole is arranged at the center of the lower end surface of the main top anchor rod; a stud is arranged at the center of the upper end face of the main middle anchor rod, and a screw hole is arranged at the center of the lower end face of the main middle anchor rod; the center of the upper end face of the main tail anchor rod is provided with a stud, the lower portion of the main tail anchor rod is provided with an external thread, and the center of the lower end face of the main tail anchor rod is provided with a universal joint screw hole.
3. The mine roadway roof separation monitoring device based on the displacement sensor according to claim 1, characterized in that the anchor rod sleeve (2) is in a shape of a circular tube, the length of the circular tube is 450-2450 mm, and the wall thickness of the circular tube is 5-10 mm; the upper part of the circular tube is provided with internal threads, and the nominal size of the internal threads on the upper part of the circular tube is the same as that of the external threads of the tail anchor rod of the main sectional anchor rod (1); the lower end of the round pipe is provided with an external thread, and the external thread at the lower end of the round pipe is the same as the internal thread nominal size of the sleeve base (5).
4. The mine roadway roof separation monitoring device based on the displacement sensor according to claim 1, characterized in that the sleeve base (5) is an integral body formed by a circular ring and a circular plate with the same outer diameter, and the inner wall of the circular ring is provided with internal threads.
5. The mine roadway roof separation monitoring device based on the displacement sensor according to claim 1, characterized in that the auxiliary segmental anchor rods (7) are an auxiliary top segment anchor rod, an auxiliary middle segment anchor rod and an auxiliary tail segment anchor rod from top to bottom in sequence, and the auxiliary middle segment anchor rods are 0-2 segments; the diameters of all sections of the auxiliary sectional anchor rods (7) are the same, and all sections of the auxiliary sectional anchor rods (7) are connected through threads;
the structure of the auxiliary top section anchor rod and the auxiliary middle section anchor rod of the auxiliary sectional anchor rod (7) is the same as that of the main top section anchor rod and the main middle section anchor rod corresponding to the main sectional anchor rod (1), a stud is arranged in the middle of the upper end of the auxiliary tail section anchor rod, an external thread is upwards arranged on the auxiliary tail section anchor rod from the lower end, and the length of the external thread is 0.7-0.8 times that of the auxiliary tail section anchor rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921432550.5U CN210599111U (en) | 2019-08-30 | 2019-08-30 | Mine tunnel roof separation monitoring devices based on displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921432550.5U CN210599111U (en) | 2019-08-30 | 2019-08-30 | Mine tunnel roof separation monitoring devices based on displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210599111U true CN210599111U (en) | 2020-05-22 |
Family
ID=70697018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921432550.5U Active CN210599111U (en) | 2019-08-30 | 2019-08-30 | Mine tunnel roof separation monitoring devices based on displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210599111U (en) |
-
2019
- 2019-08-30 CN CN201921432550.5U patent/CN210599111U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015058487A1 (en) | System for dynamically monitoring roadway roof separation based on fibre grating and pre-warning method | |
| CN104763470A (en) | One-hole multi-index intelligent rock burst pre-warning system and method for mine | |
| CN105784206B (en) | A kind of gun drilling full section multiple spot wall-attaching type three-dimensional mining induced stress monitoring device and method | |
| CN202274954U (en) | Device for monitoring and early warning roof fall of roadway | |
| CN210317366U (en) | Large-deformation monitoring anchor rod for salt mine | |
| CN110454230B (en) | Real-time monitoring and early warning device for mine roadway roof separation layer | |
| CN103195456A (en) | Intelligent anchor rod early-warning and monitoring system for surrounding rock disasters of roadway | |
| CN106523030A (en) | Roadway surrounding rock mass separation layer monitoring and early warning device | |
| CN103670362A (en) | Mine hydraulic drilling rig monitoring system | |
| CN101725342B (en) | Hollow cable type directed water conveying device | |
| CN210599111U (en) | Mine tunnel roof separation monitoring devices based on displacement sensor | |
| CN202661693U (en) | Arrangement structure of distributed optical fibers in freezing wall of shaft | |
| CN213598023U (en) | Multidirectional stress and deformation wireless monitoring and early warning system for coal mine tunnel | |
| CN104358556A (en) | Monitoring system for electric transmission line rock bolt small-sized drilling machine | |
| CN107063540B (en) | Anchor rod rope intelligent early warning stress meter and testing method thereof | |
| CN210268562U (en) | Digital display roof separation layer displacement alarm | |
| CN208061399U (en) | A kind of surface mine geological disaster monitoring device | |
| CN204098896U (en) | For the protection of the real time monitoring apparatus of downhole logging instrument | |
| CN203606048U (en) | Detector for internal continuous stress of coal seam | |
| CN206035534U (en) | Super dark shaft earth pressure dynamic monitoring system | |
| CN201428477Y (en) | Rock deformation observation alarm based on angular displacement | |
| CN105806275B (en) | Device and method for monitoring continuous deformation of different areas of surrounding rock in real time | |
| CN206146897U (en) | A simulation experiment monitoring system for top of roadway board absciss layer | |
| CN205679223U (en) | A kind of geology monitoring device | |
| CN205120286U (en) | But stress of temperature measurement monitoring stock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |