CN212903679U - Mine pressure monitoring device for coal mine support - Google Patents
Mine pressure monitoring device for coal mine support Download PDFInfo
- Publication number
- CN212903679U CN212903679U CN202022119038.4U CN202022119038U CN212903679U CN 212903679 U CN212903679 U CN 212903679U CN 202022119038 U CN202022119038 U CN 202022119038U CN 212903679 U CN212903679 U CN 212903679U
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- Prior art keywords
- support
- roof
- tube
- supporting
- pressure monitoring
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Abstract
The utility model discloses a monitoring devices is pressed in ore deposit is strutted in colliery relates to ore deposit and presses monitoring facilities field, to current roof developments appearance installation and dismantle inconvenient problem, the following scheme is put forward at present, and it includes roof developments appearance main part and flexible lead screw, slidable mounting flexible lead screw in the roof developments appearance main part, roof developments appearance main part top is rotated and is installed and is worn the circle with flexible lead screw assorted, the top fixed mounting of flexible lead screw has the stay tube, the movable groove that is circular array and distributes is offered along the inside of its circumference lateral wall to the stay tube, install the spring in the movable groove, the bracing piece is installed to the movable groove, the both ends of spring are connected with bracing piece and stay tube respectively, the outside bottom fixed mounting of stay tube has the screwed pipe. The utility model discloses novel structure, and the device is carrying out mine pressure monitoring time measuring, easy to assemble and dismantlement, and the scalability of whole device has improved the stable form of roof developments appearance simultaneously.
Description
Technical Field
The utility model relates to a monitoring facilities field is pressed in the ore deposit, especially relates to a monitoring devices is pressed in colliery strut ore deposit.
Background
The roadway is an important infrastructure for coal resources exploitation with quality and quantity guarantee in a coal mine. Roadway excavation is an important project in coal mine production. Due to the complex and dangerous situation of the geology in the deep part of the mine, even if scientific support measures are adopted, the mine pressure formed in the surrounding rock body of the mining space after mining is still one of the safety problems worth paying attention to underground. The coal mine safety regulation has definite regulations on underground safety work: the tunneling working face is strictly forbidden to work under the empty roof. "to the tunnel support develop the study, formulate and carry out the operation regulation that the strict mine pressure observes, grasp the mine pressure and show the law, avoid the operation of empty roof, promote the safety in coal mine and be the duty that our every mine human meaning is not worried.
An instrument for detecting the development of mine pressure. The method is used for underground mining, and provides scientific basis for support design, support quality monitoring, roof pressure prediction, rock burst prevention and control and the like. The mine pressure display parameters mainly comprise the moving-in amount of the top and bottom plates, the moving-in speed, the support load, the acoustic emission frequency and the energy rate of the coal rock mass and the like. The corresponding detector comprises a measuring rod, a top plate dynamic instrument, a strut dynamometer, a support hydraulic pressure gauge, an acoustic emission monitor and a multi-parameter computer remote monitoring system.
The existing top plate dynamic instrument is used by drilling a hole in a top plate, nailing a wood wedge, and fixing the dynamic instrument by a steel nail, wherein the upper end of the dynamic instrument is propped against the wood wedge. The lower end of the dynamic instrument can be added with an extension rod, the length of the extension rod is determined according to the roadway height, a bottom plate is used for digging a pit, a wood plate is laid, a hole is drilled in the middle of the wood plate, the lower end of the dynamic instrument is plugged into the hole, the hole is buried by coal ash, and the initial reading is recorded. The operation flow is tedious, the installation and the disassembly are extremely inconvenient, and meanwhile, the roof drilling easily causes the condition of empty roof, so that the mine pressure monitoring device for coal mine support is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a monitoring devices is pressed in colliery strut ore deposit has solved the installation of roof developments appearance and has dismantled inconvenient problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a coal mine supporting mine pressure monitoring device comprises a roof dynamic instrument main body and a telescopic screw rod, wherein the telescopic screw rod is arranged in the roof dynamic instrument main body in a sliding manner, the top end of the top plate dynamic instrument main body is rotatably provided with a thread ring matched with the telescopic screw rod, the top end of the telescopic screw rod is fixedly provided with a supporting tube, the supporting tube is provided with movable grooves distributed in a circular array along the inner part of the circumferential side wall of the supporting tube, springs are arranged in the movable grooves, the movable groove is provided with a support rod, two ends of the spring are respectively connected with the support rod and the support tube, the bottom end of the outer side of the supporting tube is fixedly provided with a threaded tube which is sleeved with a matched threaded sleeve, the top inner wall fixed mounting of thread bush has solid fixed ring, the stay tube has the fixed pin that is circular array and distributes along its lateral wall slidable mounting, the fixed pin runs through the stay tube and extends to the movable groove inside and the bracing piece contact.
Preferably, gu fixed ring is and link up the setting from top to bottom, and its inner chamber is the round platform form, the cross-section that the bracing piece was kept away from to the fixed pin one end is the slope structure, just the fixed pin is kept away from the bracing piece one end and is laminated with solid fixed ring's cambered surface.
Preferably, the bottom of the supporting tube is provided with a control pin, and the lower section of the circumferential inner wall of the threaded sleeve is provided with a pin hole matched with the control pin.
Preferably, the control pin is fixedly provided with a limiting block close to the circumferential side wall of the threaded sleeve.
Preferably, the top of the supporting rod is carved with anti-skid lines.
The utility model has the advantages that:
1. set up the bracing piece top on the roof, can cancel and beat the drilling at the roof, a wooden wedge is nailed, reduces the operating procedure, improves the ore deposit and presses monitoring efficiency, reduces the empty roof condition, at the bracing piece movable groove internal liftable not co-altitude, makes roof developments appearance can push up on unevenness's roof and can keep roof developments appearance main part perpendicular with the bottom plate.
2. The supporting rod is fixed through the threaded sleeve, the installation and the disassembly are convenient, the length of the whole device is controlled through the rotation of the threaded ring, the dynamic instrument of the top plate can be fixed tightly between the top plate and the bottom plate, and the telescopic lead screw can be retracted into the main body of the dynamic instrument of the top plate, so that the whole device is convenient to carry and transport.
In conclusion, the device is when carrying out the mine pressure monitoring, and easy to assemble and dismantlement have simplified original installation procedure, have reduced the probability that the sky top condition takes place, have increased mine pressure monitoring personnel's safety, and the scalability of whole device has improved the stable form of roof developments appearance simultaneously, conveniently collects and carries.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view of the top end of the telescopic rod of the present invention;
FIG. 3 is a top sectional view of the top end of the telescopic rod of the present invention;
fig. 4 is a sectional view of the top plate dynamic instrument main body and the telescopic screw rod of the present invention.
Reference numbers in the figures: 1. a top plate dynamic instrument main body; 2. a telescopic screw rod; 3. supporting a tube; 4. a movable groove; 5. a spring; 6. a support bar; 7. a fixing pin; 8. a fixing ring; 9. a threaded sleeve; 10. a threaded pipe; 11. a control pin; 12. a limiting block; 13. a pin hole; 14. and (4) a thread ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a coal mine supporting mine pressure monitoring device comprises a roof dynamic instrument main body 1 and a telescopic screw rod 2, a supporting tube 3 is fixedly mounted at the top end of the telescopic screw rod 2, movable grooves 4 distributed in a circular array are formed in the supporting tube 3 along the inner portion of the circumferential side wall of the supporting tube 3, springs 5 are mounted in the movable grooves 4, supporting rods 6 are mounted in the movable grooves 4, anti-skid grains are carved on the top of the supporting rods 6, two ends of each spring 5 are respectively connected with the supporting tube 6 and the supporting tube 3, threaded tubes 10 are fixedly mounted at the bottom ends of the outer sides of the supporting tube 3, threaded tubes 10 are sleeved with threaded sleeves 9 matched with the threaded tubes, fixing rings 8 are fixedly mounted on the inner walls of the tops of the threaded sleeves 9, control pins 11 are mounted at the bottoms of the supporting tubes 3, pin holes 13 matched with the control pins 11 are formed in the lower.
Referring to fig. 3-4, the supporting tube 3 is provided with fixing pins 7 distributed in a circular array along the outer side wall thereof in a sliding manner, the fixing pins 7 penetrate through the supporting tube 3 and extend to the inside of the movable groove 4 to be in contact with the supporting rod 6, the fixing ring 8 is arranged in a vertically through manner, the inner cavity of the fixing ring is in a round table shape, the cross section of one end, away from the supporting rod 6, of the fixing pins 7 is in an inclined structure, one end, away from the supporting rod 6, of the fixing pins 7 is attached to the cambered surface of the fixing ring 8, the top of the top plate dynamic instrument main body 1 is internally provided with the
When the device is used, firstly, the device is required to be installed, the length is determined according to the roadway height, the threaded ring 14 at the top end of the top plate dynamic instrument main body 1 is rotated, the telescopic screw rod 2 moves upwards, the support rod 6 is propped against the top plate, the bottom plate pit is dug, a wood plate is laid, a hole is drilled in the middle of the wood plate, the lower end of the top plate dynamic instrument main body 1 is plugged into the hole and is buried by coal ash, because the top plate is mostly uneven, the support rod 6 can move in the movable groove 4 at different distances, the top plate dynamic instrument main body 1 is kept vertical to the bottom plate, the threaded sleeve 9 is screwed, the fixing ring 8 moves downwards along with the rotation of the threaded sleeve 9, the extrusion fixing pin 7 moves towards the support rod 6, the support rod 6 is fixed in the movable groove 4, the control pin 11 is inserted into the pin hole 13 at the bottom end of the threaded sleeve 9 to prevent the threaded sleeve 9 from rotating, the, initial reading is recorded, and if the measuring height is larger, an extension bar can be additionally arranged to be connected with the bottom end of the top plate dynamic instrument main body 1 into a whole by using a connecting nut.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The coal mine supporting mine pressure monitoring device comprises a roof dynamic instrument main body (1) and a telescopic screw rod (2), and is characterized in that the roof dynamic instrument main body (1) is internally and slidably provided with the telescopic screw rod (2), the top end of the roof dynamic instrument main body (1) is rotatably provided with a thread ring (14) matched with the telescopic screw rod (2), the top end of the telescopic screw rod (2) is fixedly provided with a supporting tube (3), the supporting tube (3) is provided with movable grooves (4) distributed in a circular array manner along the inside of the circumferential side wall of the supporting tube (3), springs (5) are arranged in the movable grooves (4), a supporting rod (6) is arranged in the movable grooves (4), two ends of each spring (5) are respectively connected with the supporting rod (6) and the supporting tube (3), the outer bottom end of the supporting tube (3) is fixedly provided with a threaded tube (10), and the threaded tube (10) is sleeved with a threaded sleeve, the thread bush support device is characterized in that a fixing ring (8) is fixedly mounted on the inner wall of the top end of the thread bush (9), fixing pins (7) distributed in a circular array are slidably mounted on the outer side wall of the support tube (3), and the fixing pins (7) penetrate through the support tube (3) and extend to the inner portion of the movable groove (4) to be in contact with the support rod (6).
2. The coal mine support mine pressure monitoring device according to claim 1, wherein the fixing ring (8) is arranged to penetrate up and down, an inner cavity of the fixing ring is in a round table shape, a cross section of one end, away from the supporting rod (6), of the fixing pin (7) is of an inclined structure, and one end, away from the supporting rod (6), of the fixing pin (7) is attached to an arc surface of the fixing ring (8).
3. The coal mine support mine pressure monitoring device according to claim 1, wherein a control pin (11) is installed at the bottom of the support tube (3), and a pin hole (13) matched with the control pin (11) is formed in the lower section of the circumferential inner wall of the threaded sleeve (9).
4. The coal mine support mine pressure monitoring device according to claim 3, wherein a limiting block (12) is fixedly arranged on the circumferential side wall of the control pin (11) close to the threaded sleeve (9).
5. The coal mine support mine pressure monitoring device according to claim 1, wherein the top of the support rod (6) is engraved with anti-skid lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022119038.4U CN212903679U (en) | 2020-09-24 | 2020-09-24 | Mine pressure monitoring device for coal mine support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022119038.4U CN212903679U (en) | 2020-09-24 | 2020-09-24 | Mine pressure monitoring device for coal mine support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212903679U true CN212903679U (en) | 2021-04-06 |
Family
ID=75258707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022119038.4U Expired - Fee Related CN212903679U (en) | 2020-09-24 | 2020-09-24 | Mine pressure monitoring device for coal mine support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212903679U (en) |
-
2020
- 2020-09-24 CN CN202022119038.4U patent/CN212903679U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210406 Termination date: 20210924 |