Coal mine goaf earth surface subsidence monitoring device
Technical Field
The invention belongs to the technical field of settlement monitoring, and particularly relates to a device for monitoring ground surface settlement of a coal mine goaf.
Background
The coal mine goaf refers to a cavity or cavity left after underground coal or coal gangue and the like are mined in the coal mine operation process, and earth surface subsidence disasters often occur in the coal mine goaf, and the earth surface subsidence can endanger the life safety of nearby personnel in the coal mine goaf, so that relevant equipment is required to be used for real-time monitoring, and the life safety and the engineering progress are ensured.
At present, the ground subsidence monitoring mode comprises the measurement by using GPS positioning, a level gauge and the like, but the GPS positioning precision is general, and the level gauge has higher layout cost and is not suitable for being widely used.
At present, a monitoring device capable of conveniently monitoring the deviation and sedimentation of the earth surface soil layer of a coal mine goaf is lacking.
Disclosure of Invention
In order to solve the existing problems, the invention provides a device for monitoring the subsidence of the earth surface of a goaf of a coal mine, which directly inserts a detection mechanism into an original soil layer, when the soil layer around a monitoring cylinder deflects and subsides, a detection piece deflects and moves downwards along with the soil layer, so that the technical effects of monitoring the subsidence and the deviation of the earth surface soil layer are realized, and the technical problem that the subsidence and the deviation of the earth surface soil layer cannot be monitored simultaneously in the prior art is solved; the sensing mechanism connected with the detection mechanism can monitor the displacement of the detection sheet along with the soil layer in real time, and simultaneously transmits the pressure change received by the pressure sensor to an external host machine, so that the technical effect of monitoring the soil layer change in real time is achieved; the attitude adjusting mechanism of the device can monitor that the device is in a non-original position when the monitoring cylinder and the soil layer around the monitoring cylinder are wholly deviated, thereby realizing the technical effect of monitoring the deviation of the soil layer in a large area and effectively solving the technical problem that the deviation of the earth surface in a large area cannot be monitored in the prior art.
The technical scheme adopted by the invention is as follows: the utility model provides a colliery goaf earth's surface subsides monitoring devices, including monitoring section of thick bamboo, positioning mechanism, detection mechanism, sensing mechanism and gesture adjustment mechanism, positioning mechanism is fixed to be located monitoring section of thick bamboo inside lateral wall, detection mechanism locates the positioning mechanism top, detection mechanism is located to the sensing mechanism lateral wall, gesture adjustment mechanism is fixed to be located monitoring section of thick bamboo inside lateral wall, positioning mechanism includes slewing mechanism, locking mechanism and installation mechanism, slewing mechanism is fixed to be located monitoring section of thick bamboo inside lateral wall, locking mechanism is fixed to be located monitoring section of thick bamboo inside lateral wall, installation mechanism slides and locates monitoring section of thick bamboo inner wall, sensing mechanism includes skew sensing mechanism and vertical induction mechanism, skew sensing mechanism is fixed to be located detection mechanism lateral wall, vertical induction mechanism is fixed to be located monitoring section of thick bamboo lateral wall, gesture adjustment mechanism is located slewing mechanism top.
Further, the slewing mechanism comprises a fixing frame, a first servo motor, a rotating shaft, a turntable, a pushing groove, a pulley, a locking rod and a limiting rod, wherein the fixing frame is fixedly arranged on the inner side wall of the monitoring cylinder, the first servo motor is fixedly arranged on the top end of the fixing frame, the rotating shaft is coaxially fixedly arranged at the output end of the first servo motor, the turntable is coaxially fixedly arranged at the bottom end of the rotating shaft, the pushing groove array is arranged at the top end of the turntable, the pulley rolls and is arranged on the inner wall of the pushing groove, the limiting rod is fixedly arranged on the side wall of the pulley, one end of the locking rod is fixedly arranged at the bottom end of the turntable, and one end of the rotating shaft penetrates through the top end of the fixing frame.
Further, locking mechanism includes U type latch segment, first threaded rod, second servo motor and locking sleeve, the fixed monitoring section of thick bamboo lateral wall that locates of locking sleeve, the second servo motor is fixed to be located locking sleeve inner wall, the coaxial fixed second servo motor output of locating of first threaded rod, the inside lateral wall of locking sleeve is located in the slip of U type latch segment, first threaded rod outer wall is located to U type latch segment lateral wall cover.
Further, the installation mechanism comprises an installation frame, a third servo motor, a second threaded rod and an installation groove, the installation frame is arranged on the inner wall of the monitoring cylinder in a sliding mode, the installation groove array is arranged on the top end of the installation frame, the third servo motor is fixedly arranged on the bottom end inside the monitoring cylinder, the second threaded rod is coaxially fixedly arranged at the output end of the third servo motor, and the bottom wall of the installation frame is sleeved on the outer wall of the second threaded rod.
Further, the vertical induction mechanism comprises a detection port, an installation sleeve, a vertical spring and a first pressure sensor, the detection port array is arranged on the side wall of the monitoring cylinder, the installation sleeve is slidably arranged on the side wall of the detection port, the vertical spring is fixedly arranged at the top end and the bottom end of the detection port respectively, the first pressure sensor is fixedly arranged at the top end and the bottom end of the detection port, and the other ends of the vertical springs are fixedly connected with the top end and the bottom end of the installation sleeve respectively.
Further, detection mechanism includes detection piece, auxiliary rod, drive block, transfer line, touch-sensitive block, drive slot and buffer spring, the gag lever post outer wall is located to the transfer line bottom cover, the drive slot is seted up inside the gag lever post, the auxiliary rod slides and locates the drive slot inner wall, detection piece rotates and locates transfer line one end lateral wall, the fixed detection piece top of locating of drive block, auxiliary rod one end lateral wall is located to the touch-sensitive block, buffer spring is fixed respectively and locates transfer line top and bottom, two the buffer spring other end is fixed respectively and is located gag lever post top and pulley top, the auxiliary rod other end rotates with transfer block one end and is connected, the transfer line slides in the mounting groove lateral wall, the transfer line slides in the mounting sleeve inner wall.
Further, the offset sensing mechanism comprises a hydraulic device, a positioning rod, a positioning hole and a second pressure sensor, wherein the hydraulic device is fixedly arranged at the bottom end of the transmission rod, the positioning rod is fixedly arranged at the output end of the hydraulic device, the positioning hole is formed in the bottom end of the contact block, the second pressure sensor is fixedly arranged on the side walls of the two ends of the transmission groove in pairs, and the output end of the hydraulic device penetrates through the side walls of the transmission groove.
Further, gesture adjustment mechanism includes division board, perpendicular sleeve, annunciator, plumb line and signal ball, the division board is fixed to be located monitoring section of thick bamboo lateral wall, the division board top is fixed to be located to perpendicular sleeve, the division board top is fixed to be located to annunciator, inside top of monitoring section of thick bamboo is fixed to plumb line one end, the signal ball is fixed to be located the plumb line other end, perpendicular sleeve is located the plumb line and monitors under the section of thick bamboo tie point.
Further, the pushing groove is arc-shaped, the first threaded rod is connected with the U-shaped locking block through threads, the second threaded rod is connected with the mounting frame through threads, the outer diameter of the positioning rod is matched with the inner diameter of the positioning hole, and the outer diameter of the signal ball is smaller than the inner diameter of the vertical sleeve.
Further, the vertical sleeve is made of metal copper, the signal ball is made of metal copper, the partition plate is made of plastic, and the signal device is electrically connected with the vertical sleeve and the signal ball through wires.
Further, the type of the first pressure sensor and the type of the second pressure sensor are PT124G-111.
Further, the model of the annunciator is ODW-730-F1.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the detection mechanism is arranged, when the soil layer around the monitoring cylinder deflects and subsides, the detection piece deflects and moves downwards along with the soil layer, so that the technical effects of monitoring the subsidence and the deflection of the surface soil layer are realized, and the technical problem that the subsidence and the deflection of the surface soil layer cannot be monitored simultaneously in the prior art is solved;
(2) The invention can monitor the displacement of the detecting sheet along with the soil layer in real time by using the pressure sensor through the sensing mechanism, and simultaneously, the pressure change received by the pressure sensor is transmitted to an external host machine, so as to achieve the technical effect of monitoring the soil layer change in real time;
(3) According to the attitude adjusting mechanism, when the monitoring cylinder and the soil layers around the monitoring cylinder are offset integrally, the device can be monitored to be in a non-original position, so that the technical effect of monitoring the large-area soil layer offset is realized, and the technical problem that the large-area ground surface offset cannot be monitored in the prior art is effectively solved;
(4) According to the invention, the rotating mechanism is arranged, the detecting pieces are inserted into the compact natural soil layer by utilizing the rotation of the turntable, the original soil layer structure is not damaged, and the technical problem of inaccurate monitoring caused by the fact that the detecting pieces are directly buried in the prior art, and gaps are reserved due to connection damage between soil layers is effectively solved;
(5) The locking mechanism and the mounting mechanism provided by the invention can ensure the horizontal insertion of the detection sheet when the detection sheet is inserted into the soil layer, and improve the accuracy of subsequent monitoring.
Drawings
FIG. 1 is a front view of a coal mine goaf earth surface subsidence monitoring device;
FIG. 2 is a perspective view of a coal mine goaf earth surface subsidence monitoring device provided by the invention;
FIG. 3 is a front view of the internal mechanism of the monitor cartridge according to the present invention;
FIG. 4 is a perspective view of the internal mechanism of the monitor cylinder according to the present invention;
FIG. 5 is a right side view of the internal mechanism of the monitor cartridge according to the present invention;
FIG. 6 is a partial cross-sectional view of the internal mechanism of the monitor cartridge according to the present invention;
FIG. 7 is an enlarged view of portion A of FIG. 6;
FIG. 8 is a perspective view, partially in section, of the internal mechanism of the monitor cartridge according to the present invention;
FIG. 9 is an enlarged view of portion B of FIG. 8;
FIG. 10 is an enlarged view of portion C of FIG. 8;
fig. 11 is an enlarged view of a portion D in fig. 8.
Wherein 1, a monitoring cylinder, 2, a positioning mechanism, 3, a detecting mechanism, 4, a sensing mechanism, 5, an attitude adjusting mechanism, 210, a rotating mechanism, 220, a locking mechanism, 230, a mounting mechanism, 410, an offset sensing mechanism, 420, a vertical sensing mechanism, 211, a fixing frame, 212, a first servo motor, 213, a rotating shaft, 214, a turntable, 215, a pushing groove, 216, a pulley, 217, a locking rod, 218, a limit rod, 221, a U-shaped locking block, 222, a first threaded rod, 223, a second servo motor, 224, a locking sleeve, 231, a mounting frame, 232, a third servo motor, 233, a second threaded rod, 234, a mounting groove, 421, a detecting port, 422, a mounting sleeve, 423, a vertical spring, 424, a pressure sensor one, 301, a detecting piece, 302, an auxiliary rod, 303, a driving block, 304, a driving rod, 305, a touch block, 306, a driving groove, 307, a buffer spring, a hydraulic device, 412, a positioning rod, 413, a positioning hole, 414, a pressure sensor two, a partition plate, a vertical sleeve, 504, a signal device, 503, a signal ball 505, and a signal ball.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10 and fig. 11, the scheme provides a coal mine goaf earth's surface subsidence monitoring device, including a monitoring cylinder 1, positioning mechanism 2, detecting mechanism 3, sensing mechanism 4 and gesture adjustment mechanism 5, positioning mechanism 2 is fixed to be located monitoring cylinder 1 inside lateral wall, positioning mechanism 3 locates positioning mechanism 2 top, sensing mechanism 4 locates detecting mechanism 3 lateral wall, gesture adjustment mechanism 5 is fixed to be located monitoring cylinder 1 inside lateral wall, positioning mechanism 2 includes slewing mechanism 210, locking mechanism 220 and installation mechanism 230, slewing mechanism 210 is fixed to be located monitoring cylinder 1 inside lateral wall, locking mechanism 220 is fixed to be located monitoring cylinder 1 inside lateral wall, installation mechanism 230 slides and locates monitoring cylinder 1 inner wall, sensing mechanism 4 includes offset sensing mechanism 410 and vertical sensing mechanism 420, offset sensing mechanism 410 is fixed to be located detecting mechanism 3 lateral wall, vertical sensing mechanism 420 is fixed to be located monitoring cylinder 1 lateral wall, gesture adjustment mechanism 5 is located slewing mechanism 210 top.
The rotating mechanism 210 comprises a fixing frame 211, a first servo motor 212, a rotating shaft 213, a rotating disc 214, a pushing groove 215, a pulley 216, a locking rod 217 and a limiting rod 218, wherein the fixing frame 211 is fixedly arranged on the inner side wall of the monitoring cylinder 1, the first servo motor 212 is fixedly arranged at the top end of the fixing frame 211, the rotating shaft 213 is coaxially fixedly arranged at the output end of the first servo motor 212, the rotating disc 214 is coaxially fixedly arranged at the bottom end of the rotating shaft 213, the pushing groove 215 is arranged at the top end of the rotating disc 214 in an array manner, the pulley 216 is arranged on the inner wall of the pushing groove 215 in a rolling manner, the limiting rod 218 is fixedly arranged on the side wall of the pulley 216, one end of the locking rod 217 is fixedly arranged at the bottom end of the rotating disc 214, and one end of the rotating shaft 213 penetrates through the top end of the fixing frame 211.
The locking mechanism 220 comprises a U-shaped locking block 221, a first threaded rod 222, a second servo motor 223 and a locking sleeve 224, the locking sleeve 224 is fixedly arranged on the side wall of the monitoring cylinder 1, the second servo motor 223 is fixedly arranged on the inner wall of the locking sleeve 224, the first threaded rod 222 is coaxially fixedly arranged at the output end of the second servo motor 223, the U-shaped locking block 221 is slidably arranged on the side wall inside the locking sleeve 224, and the side wall of the U-shaped locking block 221 is sleeved on the outer wall of the first threaded rod 222.
Wherein, the installation mechanism 230 includes mounting bracket 231, third servo motor 232, second threaded rod 233 and mounting groove 234, and the monitoring section of thick bamboo 1 inner wall is located in the mounting bracket 231 slip, and the mounting groove 234 array is seted up on the mounting bracket 231 top, and the inside bottom of monitoring section of thick bamboo 1 is located to the fixed locating of third servo motor 232, and the coaxial fixed locating of second threaded rod 233 is served in third servo motor 232 output, and the second threaded rod 233 outer wall is located to the cover of mounting bracket 231 diapire.
The vertical sensing mechanism 420 comprises a detection port 421, a mounting sleeve 422, a vertical spring 423 and a first pressure sensor 424, the detection port 421 is formed in the side wall of the monitoring cylinder 1 in an array mode, the mounting sleeve 422 is slidably arranged on the side wall of the detection port 421, the vertical spring 423 is fixedly arranged at the top end and the bottom end of the detection port 421 respectively, the first pressure sensor 424 is fixedly arranged at the top end and the bottom end of the detection port 421, and the other ends of the two vertical springs 423 are fixedly connected with the top end and the bottom end of the mounting sleeve 422 respectively.
The detecting mechanism 3 comprises a detecting piece 301, an auxiliary rod 302, a transmission block 303, a transmission rod 304, a contact block 305, a transmission groove 306 and a buffer spring 307, wherein the bottom end of the transmission rod 304 is sleeved on the outer wall of the limiting rod 218, the transmission groove 306 is formed in the limiting rod 218, the auxiliary rod 302 is slidably arranged on the inner wall of the transmission groove 306, the detecting piece 301 is rotationally arranged on the side wall of one end of the transmission rod 304, the transmission block 303 is fixedly arranged on the top end of the detecting piece 301, the contact block 305 is fixedly arranged on the side wall of one end of the auxiliary rod 302, the buffer spring 307 is respectively fixedly arranged on the top end and the bottom end of the transmission rod 304, the other ends of the two buffer springs 307 are respectively fixedly arranged on the top end of the limiting rod 218 and the top end of the pulley 216, the other ends of the auxiliary rod 302 are rotationally connected with one end of the transmission block 303, the transmission rod 304 is slidably arranged on the side wall of the mounting groove 234, and the transmission rod 304 is slidably arranged on the inner wall of the mounting sleeve 422.
The offset sensing mechanism 410 includes a hydraulic device 411, a positioning rod 412, a positioning hole 413 and a second pressure sensor 414, the hydraulic device 411 is fixedly arranged at the bottom end of the transmission rod 304, the positioning rod 412 is fixedly arranged at the output end of the hydraulic device 411, the positioning hole 413 is arranged at the bottom end of the contact block 305, the second pressure sensor 414 is fixedly arranged at the side walls of the two ends of the transmission groove 306 in pairs, and the output end of the hydraulic device 411 penetrates through the side walls of the transmission groove 306.
Wherein, gesture adjustment mechanism 5 includes division board 501, perpendicular sleeve 502, annunciator 503, perpendicular 504 and signal ball 505, and division board 501 is fixed to be located monitoring section of thick bamboo 1 lateral wall, and division board 501 top is located to perpendicular sleeve 502 fixing, and division board 501 top is located to annunciator 503 fixing, and inside top of monitoring section of thick bamboo 1 is located to perpendicular 504 one end fixing, and signal ball 505 fixing locates the perpendicular 504 other end, and perpendicular sleeve 502 is located perpendicular 504 and monitoring section of thick bamboo 1 tie point under.
The pushing groove 215 is in an arc shape, the first threaded rod 222 is in threaded connection with the U-shaped locking block 221, the second threaded rod 233 is in threaded connection with the mounting frame 231, the outer diameter of the positioning rod 412 is matched with the inner diameter of the positioning hole 413, and the outer diameter of the signal ball 505 is smaller than the inner diameter of the vertical sleeve 502.
Wherein, the vertical sleeve 502 is made of metal copper, the signal ball 505 is made of metal copper, the partition plate 501 is made of plastic, and the signal device 503 is electrically connected with the vertical sleeve 502 and the signal ball 505 through wires.
When the device is specifically used, firstly, the device is horizontally placed in an embedded pit with the inner diameter slightly larger than the outer diameter of a monitoring cylinder, the monitoring cylinder 1 is connected with an external host computer through a wire, whether the device is in a horizontal position or not can be judged by whether a signal is sent out by a annunciator 503 in the placing process, a signal ball 505 on a vertical line 504 in the monitoring cylinder 1 is in a vertical position due to the action of gravity, if the device deflects, the signal ball 505 touches the inner side wall of the vertical sleeve 502, so that the annunciator 503 can send out a signal to the external host computer, if no signal is sent out, the device is determined to be in the horizontal position, then, soil is backfilled, and only the wire connected with the external host computer is reserved, so that the burying is completed;
then, the user can control the first servo motor 212 to work so as to drive the rotation shaft 213 and the turntable 214 to rotate, the transmission rod 304 is located in the installation groove 234 at the moment, when the turntable 214 rotates, the pulley 216 can be pushed to slide in the pushing groove 215, the pulley 216 drives the transmission rod 304 to move away from the rotation shaft 213 relative to the rotation shaft 213, the positioning rod 412 is inserted into the inner wall of the positioning hole 413 at the moment, the auxiliary rod 302 is fixed, the detection piece 301 can horizontally move away from the rotation shaft 213, the detection piece 301 can be horizontally inserted into a soil layer, when the pulley 216 slides to one end of the pushing groove 215 away from the rotation shaft 213, the user can control the second servo motor 223 to rotate, the U-shaped locking block 221 can move towards the rotation shaft 213 through the transmission of the first threaded rod 222 until one end recessed by the U-shaped locking block 221 is attached to the locking rod 217, locking fixation of the turntable 214 is completed, then the user controls the hydraulic device 411 to shrink, the positioning rod 412 can be driven to move upwards, the auxiliary rod 302 is released, then the user controls the third servo motor 232 to work, and the second threaded rod 233 can be driven to move downwards, so that the installation of the limit device 231 is released;
when the soil layer on the side wall of the monitoring cylinder 1 is offset, the detection piece 301 is driven to rotate on the side wall of the transmission rod 304, so that the transmission block 303 is driven to rotate, and the auxiliary rod 302 and the contact block 305 are driven to slide on the inner wall of the transmission groove 306, when the detection piece 301 is offset anticlockwise, the auxiliary rod 302 and the contact block 305 are driven to move leftwards, the contact block 305 contacts the second pressure sensor 414 positioned on the left side of the contact block 305, at the moment, the second pressure sensor 414 transmits a signal to an external host through a wire, when the detection piece 301 is offset clockwise, the auxiliary rod 302 and the contact block 305 are moved rightwards, the contact block 305 contacts the second pressure sensor 414 positioned on the right side of the contact block 305, at the moment, the second pressure sensor 414 transmits a signal to the external host through a wire, when the soil layer on the side wall of the monitoring cylinder 1 is settled, the settlement soil layer drives the detection piece 301 to move downwards, so that the transmission rod 304 and the mounting sleeve 422 can be driven to slide downwards on the inner wall 421 of the detection port, at the moment, the vertical spring 423 and the buffer spring 307 play a role in buffering, the mounting sleeve 422 moves downwards, the first pressure sensor 424 is contacted by the wire, the first pressure sensor 424 passes through the wire, the signal transmission wire 424 is transmitted to the external host machine, the signal is transmitted by the wire, the signal is transmitted to the external host through the wire, the position of the vertical sensor 503 is lost by the whole, and the vertical sensor 1 is lost, the position of the vertical sensor body and the vertical sensor 502 can be moved by the vertical position, and the vertical sensor 1, and thus the original signal can be transmitted by the position, and the signal can be transmitted by the vertical body by the position and the vertical sensor body and the position, and the signal can be moved by the vertical body and the position, and the vertical body and the position and the signal can and the opposite to the position;
when the coal goaf is to be filled or collapsed, a user can release the fixing of the locking rod 217 by controlling the second servo motor 223 and the second threaded rod 233 to drive, and then the user can reverse by controlling the first servo motor 212, so that the detecting sheet 301 can be separated from the soil layer to move towards the inside of the monitoring cylinder 1, and the user can conveniently dig the monitoring cylinder 1 for next use.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The present invention and its embodiments have been described above with no limitation, and the embodiments of the present invention are shown in the drawings, and the actual structure is not limited thereto, so that those skilled in the art who have the ordinary skill in the art who have the benefit of the present invention will not creatively design similar structures and examples to those of the present invention without departing from the gist of the present invention.