CN114923456B - Ground subsidence detection device for coal mine goaf - Google Patents
Ground subsidence detection device for coal mine goaf Download PDFInfo
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- CN114923456B CN114923456B CN202210528448.5A CN202210528448A CN114923456B CN 114923456 B CN114923456 B CN 114923456B CN 202210528448 A CN202210528448 A CN 202210528448A CN 114923456 B CN114923456 B CN 114923456B
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- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 239000003245 coal Substances 0.000 title claims abstract description 22
- 238000010892 electric spark Methods 0.000 claims abstract description 54
- 238000009413 insulation Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims description 4
- 238000009760 electrical discharge machining Methods 0.000 claims 3
- 239000007787 solid Substances 0.000 abstract 1
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 15
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/157—Generating seismic energy using spark discharges; using exploding wires
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/04—Details
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a ground subsidence detection device for a coal mine goaf, which comprises a fixing component, wherein the solid component comprises a shield and a supporting rod, one side of the shield is provided with a detection system, the inner side of the shield is provided with a sound insulation component, the sound insulation component comprises an inner cover and a separation cover, the bottom of the sound insulation component is provided with a sealing mechanism, the inner side of the inner cover is provided with an electric spark source, the inner side of the inner cover is provided with a recoil component, the ground subsidence detection device for the coal mine goaf can greatly reduce the outgoing of noise, ensure the hearing safety of staff, improve the working comfort of the staff, utilize downward inertia force such as the electric spark source, a supporting plate and a counterweight to offset the ground impact force, prevent the electric spark source from striking the inner cover and prevent the electric spark source from pushing upwards to the inner cover, and ensure the safety of equipment such as rubber sleeves, skateboards and the like.
Description
Technical Field
The invention relates to the technical field of ground subsidence detection equipment, in particular to a ground subsidence detection device for a goaf of a coal mine.
Background
In order to ensure the safety of the coal mine goaf, the underground holes of the coal mine goaf are required to be detected, so that the ground subsidence speed and subsidence amount are required to be detected in advance, the personnel and property safety of the coal mine goaf are effectively ensured, the existing coal mine goaf ground subsidence detection equipment basically has the advantages of high detection speed, high detection accuracy, large detection depth, good working stability, long service life and the like, the use requirement of detecting the holes below the coal mine goaf ground can be met, however, for the existing coal mine goaf ground subsidence detection equipment, on one hand, a vibration source is required to be used for sending out vibration waves when the holes below are detected, and further, larger noise is required to be generated when the equipment works, the hearing safety of staff is not facilitated, the working comfort is reduced, on the other hand, the reverse impact of the ground on the vibration source is easy to open the sound insulation assembly upwards when the sound insulation assembly is used for sound insulation work, further the sound insulation assembly is not facilitated, on the other hand, the problem that the ground is easy to be uneven due to the ground when the recoil assembly is used, the ground is reduced, the horizontal component is easy to be generated, the sound insulation assembly is easy to move in the horizontal direction, and the sound insulation assembly is not beneficial to guaranteeing the horizontal component is easy to move.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the ground subsidence detection device for the goaf of the coal mine, so as to solve the problems in the prior art.
In order to achieve the above object, the present invention is realized by the following technical scheme: a be used for colliery goaf ground subsidence detection device, including fixed subassembly, fixed subassembly includes guard shield and branch, the elevating gear subassembly is installed in the outside of guard shield, the elevating gear subassembly includes gyro wheel and lead screw, detecting system is installed to one side of guard shield, detecting system includes detector and detector, soundproof unit is installed to the inboard of guard shield, soundproof unit includes inner cover and separate the cover, sealing mechanism is installed to soundproof unit's bottom, sealing mechanism includes slide and rubber sleeve, electric spark focus is installed to the inboard of inner cover, recoil subassembly includes cutting ferrule and piston, buffer unit is installed to the bottom of piston, buffer unit includes guide arm and universal ball.
Further, a hook is welded on one side of the shield, a scraping plate is arranged at the top of the detector, and the detector is hung on the hook through the scraping plate.
Further, a bayonet is formed in the detector, the detector is clamped at the inner side of the bayonet, a junction box is mounted at the inner side of the detector, and wiring is mounted at the inner side of the junction box.
Further, the inner side of branch has seted up the internal thread, the external screw thread has been seted up on the lead screw, the internal screw thread cooperatees with the external screw thread, the top at the gyro wheel is installed through the bearing to the bottom of lead screw, the top of lead screw passes branch and extends to the top of branch, the top welding of lead screw has the crank.
Further, the shield is sleeved outside the inner shield, the shield is sleeved outside the shield, the bottom of the shield extends inwards to the bottom of the inner shield, and the bottoms of the inner shield and the shield are welded inside the shield.
Further, the spout has all been seted up to the inboard of inner cover and guard shield, the slide card is in the inboard of spout, the top of slide is connected with the top of spout through first spring, the bottom of slide extends to the bottom of guard shield, the top bonding of rubber cover is in the bottom of guard shield, the slide card is in the both sides of rubber cover, the inboard of rubber cover is equipped with water.
Further, the both sides welding of electric spark focus has the extension board, the bottom welding of extension board has the counter weight, the top welding of cutting ferrule has on the inner wall of inner cover, the outside card of piston is on the inner wall of cutting ferrule, touch press switch is all installed to the both sides of the bottom of electric spark focus.
Further, the top of cutting ferrule is through the bolt installation electro-magnet, the electro-magnet passes through spring two and is connected with the top of piston, the detector passes through the electric wire and is connected with touch switch and electro-magnet, touch switch and electric spark focus connection through the electric wire.
Further, the outside side card of guide arm is on the inner wall of cutting ferrule, the universal ball has all been welded at the bottom of piston and the top of extension board, the ball cover has all been seted up to the top and the bottom of guide arm, the outside side at the universal ball is established to the ball cover.
Further, the air hole has been seted up to one side of cutting ferrule, air hole evenly distributed is on the cutting ferrule, the bottom welding of cutting ferrule has the support, the cover is equipped with the ball on the support, the ball card is in the outside side of guide arm, ball evenly distributed is in the bottom of cutting ferrule.
Compared with the prior art, the invention has the beneficial effects that:
1. This a detection device that sinks on colliery goaf ground is when using, at the during operation, through the crank rotation lead screw for the lead screw drives the gyro wheel upward movement, and then makes the slide card of the bottom of guard shield subaerial, and the extrusion at the guard shield is to, make the slide remove in the spout, and utilize the rubber sleeve to seal the bottom of guard shield, the bottom of guard shield forms double-deck isolation through separating cover and inner cover, the bottom of guard shield seals ground through the rubber sleeve, and utilize the outgoing of water noise reduction in the rubber sleeve, at the electric spark focus during operation, the outgoing of very big noise reduction, guarantee peripheral staff's hearing safety effectively, improve personnel's travelling comfort of work.
2. When the ground subsidence detection device for the coal mine goaf is used, the electromagnet is firstly opened, the electromagnet is enabled to enable the spring II to shrink through suction, the piston is enabled to be attracted to the top of the clamping sleeve upwards, the piston drives the support plate upwards through the guide rod and enables the electric spark source to move upwards, when the detection operation is carried out, the electromagnet is closed, the electric spark source moves downwards by utilizing the passing elastic force and the gravity of the electric spark source and other parts, when the electric spark source is about to contact the ground, the electric spark source is opened by the touch switch, so that the electric spark source works to generate shock waves to the ground, reverse impact of the electric spark source is generated on the ground, downward inertia force such as the support plate and the counterweight on the electric spark source is utilized to offset, and further the electric spark source is effectively prevented from bouncing upwards, so that the electric spark source can be prevented from striking the inner cover, the safety of the inner cover is guaranteed, the electric spark source is prevented from pushing upwards, the sealing effect of the rubber sleeve on the ground is guaranteed, and sound insulation work is guaranteed.
3. This a detection device that is used for colliery goaf ground subsidence when using, when the electro-magnet is closed, the spring is to pushing down the piston, the air flows into the cutting ferrule through the gas pocket in, along with the piston down-ward movement, the gas pocket quantity of the bottom plate of piston constantly increases, the air is to the internal flow speed of cutting ferrule constantly accelerate, avoid pushing up the guard shield because of the elasticity of spring in the moment that the electro-magnet was closed, ensure the sealed fixed of guard shield to ground, the pole is pushing down the branch down-movement of pushing down of piston, after the guide arm leaves the cutting ferrule, after the reaction force on electric spark focus work received the ground, make the branch can deflect through the universal ball at the arbitrary angle in the bottom of guide arm, the top of guide arm is deflected through the universal ball, and then make electric spark focus when receiving horizontal component force, can not produce horizontal direction's promotion to the inner cover, and then the safety of equipment such as guarantee rubber sleeve and slide.
Drawings
FIG. 1 is a schematic diagram of a ground subsidence detection apparatus for a goaf of a coal mine according to the present invention;
FIG. 2 is a cross-sectional view of a ground subsidence detection apparatus for a goaf of a coal mine according to the present invention;
FIG. 3 is a side cross-sectional view of a ferrule of the present invention for a ground subsidence detection assembly for a coal mine goaf;
FIG. 4 is a bottom view of a ferrule for a coal mine goaf ground subsidence detection apparatus of the present invention;
In the figure: 1. a shield; 2. a support rod; 3. a detector; 4. a hook; 5. a wave detector; 6. a junction box; 7. a roller; 8. a screw rod; 9. a crank; 10. an inner cover; 11. a separation cover; 12. a chute; 13. a slide plate; 14. a first spring; 15. a rubber sleeve; 16. electric spark source; 17. a support plate; 18. a counterweight; 19. a cutting sleeve; 20. a piston; 21. an electromagnet; 22. a guide rod; 23. a universal ball; 24. a ball sleeve; 25. air holes; 26. a ball; 27. a bracket; 28. a touch switch; 29. and a second spring.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1 to 4, the present invention provides a technical solution: a be used for colliery goaf ground subsidence detection device which characterized in that: comprises a fixing component, wherein the fixing component comprises a shield 1 and a supporting rod 2, the outer side of the shield 1 is provided with a lifting wheel component, the lifting wheel component comprises a roller 7 and a screw rod 8, one side of the shield 1 is provided with a detection system, the detection system comprises a detector 3 and a detector 5, the inner side of the shield 1 is provided with a sound insulation component, the sound insulation component comprises an inner cover 10 and a separation cover 11, the bottom of the sound insulation component is provided with a sealing mechanism, the sealing mechanism comprises a sliding plate 13 and a rubber sleeve 15, the inner side of the inner cover 10 is provided with an electric spark source 16, the inner side of the inner cover 10 is provided with a recoil component, the recoil component comprises a clamping sleeve 19 and a piston 20, the bottom of the piston 20 is provided with a buffer component, the buffer component comprises a guide rod 22 and a universal ball 23, one side of the shield 1 is welded with a hook 4, the scraper blade is installed at the top of detector 3, detector 3 hangs on couple 4 through the scraper blade, the bayonet has been seted up on the detector 3, detector 5 card is in the inboard of bayonet, terminal box 6 is installed to the inboard of detector 3, the wiring is installed to the inboard of terminal box 6, can be when in operation, take off detector 3 from couple 4 earlier, take out the wiring in the terminal box 6, be connected with detector 5 and guard shield 1 respectively through the wiring with detector 3, and insert detector 5 to the ground of different distances and different positions from electric spark source 16, produce vibrations through electric spark source 16 and transmit into underground, and through the secondary vibrations of detector 5 response underground reflection, and then can detect the underground hole by detector 3, in order to analyze the underground structure in colliery goaf, time for ground subsidence, the time of sinking, and the speed and the subsidence amount are measured and calculated, so that the ground subsidence detection work of the goaf of the coal mine is ensured.
This embodiment, the internal thread has been seted up to the inboard of branch 2, the external screw thread has been seted up on the lead screw 8, internal screw thread and external screw thread cooperate, the bottom of lead screw 8 passes through the bearing and installs at the top of gyro wheel 7, the top of lead screw 8 passes branch 2 and extends to the top of branch 2, the top welding of lead screw 8 has crank 9, separate cover 11 cover is established in the outside of inner cover 10, the outside at separate cover 11 is established to cover 1 cover, the bottom of cover 1 inwards extends to the bottom of inner cover 10, the inboard of cover 10 and separate cover 11 all welds the inboard at cover 1, spout 12 has all been seted up to inner cover 10 and cover 1's inboard, slide 13 card is in the inboard of spout 12, the top of slide 13 passes through spring one 14 and is connected with spout 12's top, the bottom of slide 13 extends to cover 1, the top of rubber sleeve 15 bonds in the bottom of cover 1, slide 13 card is in the both sides of rubber sleeve 15, the inboard of rubber sleeve 15 is equipped with in the outside at the outside of separate cover 11, the bottom of cover 15, the cover 1 is equipped with in the cover 8, the bottom of cover 1 is equipped with in the water, the cover 1 is carried out to seal cover 1 and is carried out to the seal cover 1 through the bottom of cover 1 through the seal cover 1, and the noise of the bottom of cover 1 is carried out to the seal cover 1, and the noise is reduced in the bottom of the cover 1 is carried out by the seal 1, the seal cover 1 is carried out by the seal 1 to the bottom 1, the noise is carried out the noise is more than the bottom 1, the noise is reduced to the noise is more than the noise is reduced to the noise 1 and is more than the noise is reduced to the noise 1, the noise is more than the noise 1 and has the noise is sealed and has the noise 1.
In this embodiment, the two sides of the spark source 16 are welded with the support plate 17, the bottom of the support plate 17 is welded with the counterweight 18, the top of the clamping sleeve 19 is welded with the inner wall of the inner cover 10, the outer side of the piston 20 is clamped on the inner wall of the clamping sleeve 19, the two sides of the bottom of the spark source 16 are both provided with the touch switch 28, the top of the clamping sleeve 19 is provided with the electromagnet 21 through bolts, the electromagnet 21 is connected with the top of the piston 20 through the spring two 29, the detector 3 is connected with the touch switch 28 and the electromagnet 21 through wires, the touch switch 28 is connected with the spark source 16 through wires, when the detection work is performed, the electromagnet 21 is firstly turned on, so that the electromagnet 21 contracts the spring two 29 through suction and attracts the piston 20 upwards to the top of the clamping sleeve 19, the piston 20 drives the support plate 17 upwards through the guide rod 22, and move the electric spark focus 16 upwards, when detecting, close the electro-magnet 21, utilize the elasticity of spring two and gravity of parts such as electric spark focus 16, make electric spark focus 16 move downwards, and when the electric spark focus 16 will contact the ground, touch the switch 28 and open electric spark focus 16, make electric spark focus 16 work produce the shock wave to the ground, the reverse impact of ground on electric spark focus 16, utilize the downward inertial force such as backup plate 17 and counter weight 18 on the electric spark focus 16, and then effectively prevent electric spark focus 16 from bouncing upward, and then can avoid electric spark focus 16 to strike inner cover 10, ensure the safety of inner cover 10, and prevent electric spark 16 to push upwards to inner cover 10, ensure the sealed effect of rubber sleeve 15 to the ground, ensure the sound insulation work.
In this embodiment, the outer side of the guide rod 22 is clamped on the inner wall of the clamping sleeve 19, the bottom of the piston 20 and the top of the support plate 17 are both welded with the universal ball 23, the top and bottom of the guide rod 22 are both provided with the ball sleeve 24, the ball sleeve 24 is sleeved on the outer side of the universal ball 23, one side of the clamping sleeve 19 is provided with the air holes 25, the air holes 25 are uniformly distributed on the clamping sleeve 19, the bottom of the clamping sleeve 19 is welded with the support 27, the support 27 is sleeved with the balls 26, the balls 26 are clamped on the outer side of the guide rod 22, the balls 26 are uniformly distributed on the bottom of the clamping sleeve 19, when the electromagnet 21 is closed, the second spring 29 pushes the piston 20 downwards, air flows into the clamping sleeve through the air holes 25, the number of the air holes 25 at the top of the piston 20 is continuously increased along with the downward movement of the piston 20, the air flow speed in the cutting sleeve 19 is continuously accelerated, the shield 1 is prevented from being pushed upwards to open due to the elastic force of the spring II 29 at the moment of closing the electromagnet 21, the shield 1 is guaranteed to be sealed and fixed to the ground, the guide rod 22 pushes the support plate 17 downwards under the downward pushing of the piston 20, after the guide rod 22 leaves the cutting sleeve 19, after the electric spark source 16 works and receives the reaction force of the ground, the support plate 17 can deflect at any angle at the bottom of the guide rod 22 through the universal ball 23, the top end of the guide rod 22 deflects through the universal ball 23, and then when the electric spark source 16 receives horizontal component force, the horizontal movement can be carried out through the universal ball 23 on the guide rod 22, the inner cover 10 is not pushed in the horizontal direction, abrasion of the sliding plate 13, the rubber sleeve 15 and the ground is avoided, and the safety of equipment such as the rubber sleeve 15, the sliding plate 13 and the like is guaranteed.
The ground subsidence detection device for the goaf of the coal mine provides electric energy for all electric equipment through an external power supply, during operation, the screw rod 8 is rotated through the shaking 9, so that the screw rod 8 drives the roller 7 to move upwards, the sliding plate 13 at the bottom of the shield 1 is clamped on the ground, the sliding plate 13 moves into the sliding groove 12 under the extrusion of the shield 1, the bottom of the shield 1 is sealed by the rubber sleeve 15, the inner side of the shield 1 forms double-layer isolation through the isolation cover 11 and the inner cover 10, the bottom of the shield 1 seals the ground through the rubber sleeve 15, the noise is reduced by the water in the rubber sleeve 15, during operation of the electric spark vibration source 16, the noise is greatly reduced, the hearing safety of surrounding staff is effectively ensured, the comfort of the staff is improved, the electromagnet 21 is firstly opened, the electromagnet 21 is contracted by the second spring 29 through the suction force, and the piston 20 is attracted upwards to the top of the clamping sleeve 19, the supporting plate 17 is driven upwards by the piston 20 through the guide rod 22, and the electric spark vibration source 16 is moved upwards, when the detection work is carried out, the electromagnet 21 is closed, the electric spark vibration source 16 is moved downwards by utilizing the elasticity of the spring II and the gravity of the electric spark vibration source 16 and other parts, when the electric spark vibration source 16 is about to contact the ground, the electric spark vibration source 16 is opened by the touch switch 28, so that the electric spark vibration source 16 works to generate shock waves to the ground, the ground impacts the electric spark vibration source 16 reversely, the downward inertia force of the supporting plate 17, the counterweight 18 and the like on the electric spark vibration source 16 is utilized to counteract, so that the electric spark vibration source 16 is effectively prevented from bouncing upwards, the electric spark vibration source 16 is prevented from striking the inner cover 10, the safety of the inner cover 10 is ensured, the electric spark vibration source 16 is prevented from pushing upwards, the sealing effect of the rubber sleeve 15 on the ground is guaranteed, sound insulation work is guaranteed, when the electromagnet 21 is closed, the second spring 29 pushes the piston 20 downwards, air flows into the clamping sleeve through the air holes 25, the number of the air holes 25 at the top of the piston 20 is continuously increased along with the downward movement of the piston 20, the flowing speed of the air in the clamping sleeve 19 is continuously increased, the shield 1 is prevented from being pushed upwards by the elastic force of the second spring 29 at the moment of closing the electromagnet 21, the sealing and fixing of the shield 1 on the ground are guaranteed, the guide rod 22 pushes the support plate 17 downwards under the downward pushing of the piston 20, after the guide rod 22 leaves the clamping sleeve 19, the support plate 17 can deflect at any angle at the bottom of the guide rod 22 after the electric spark seismic source 16 works under the reaction force of the ground, the top end of the guide rod 22 deflects through the universal ball 23, the electric spark source 16 can horizontally move through the universal ball 23 on the guide rod 22 when receiving horizontal component force, the inner cover 10 can not be pushed in the horizontal direction, abrasion of the slide plate 13 and the rubber sleeve 15 and the ground is avoided, and the safety of equipment such as the slide plate 15 and 13 is guaranteed.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. A be used for colliery goaf ground subsidence detection device which characterized in that: including fixed subassembly, fixed subassembly includes guard shield (1) and branch (2), the elevating gear subassembly is installed in the outside of guard shield (1), the elevating gear subassembly includes gyro wheel (7) and lead screw (8), detecting system is installed to one side of guard shield (1), detecting system includes detector (3) and detector (5), its characterized in that: the inner side of the shield (1) is provided with a sound insulation assembly, the sound insulation assembly comprises an inner cover (10) and a separation cover (11), the bottom of the sound insulation assembly is provided with a sealing mechanism, the sealing mechanism comprises a sliding plate (13) and a rubber sleeve (15), the inner side of the inner cover (10) is provided with an electric spark vibration source (16), the inner side of the inner cover (10) is provided with a recoil assembly, the recoil assembly comprises a clamping sleeve (19) and a piston (20), the bottom of the piston (20) is provided with a buffer assembly, the buffer assembly comprises a guide rod (22) and a universal ball (23), the separation cover (11) is sleeved on the outer side of the inner cover (10), the shield (1) is sleeved on the outer side of the separation cover (11), the bottom of the shield (1) inwards extends to the bottom of the inner cover (10), the bottoms of the inner cover (10) and the separation cover (11) are both welded on the inner side of the shield (1), the inner side of the inner cover (10) and the inner side of the shield (1) are both provided with sliding grooves (12), the clamping sleeve (12) is clamped on the bottom of the shield (13) and the sliding plate (13) is connected to the bottom of the sliding plate (14) through the sliding plate (13) at the top of the sliding plate (13), the utility model discloses a ball socket, including slide (13) and ball socket, slide (13) are equipped with water in the both sides of rubber sleeve (15), the inboard of rubber sleeve (15) is equipped with water, the both sides welding of spark-erosion source (16) have extension board (17), the bottom welding of extension board (17) has counter weight (18), the top welding of cutting ferrule (19) has on the inner wall of inner cover (10), the outside card of piston (20) is on the inner wall of cutting ferrule (19), contact switch (28) are all installed to the both sides of the bottom of spark-erosion source (16), electro-magnet (21) are installed through the bolt at the top of cutting ferrule (19), electro-magnet (21) are connected with the top of piston (20) through spring two (29), detector (3) are connected with contact switch (28) and electro-magnet (21) through the electric wire, contact switch (28) are connected with spark-erosion source (16) through the electric wire, the outside side card of guide arm (22) is on the inner wall of cutting ferrule (19), the bottom of piston (20) and the top of extension board (17) all install contact switch (28), electro-magnet (24) are equipped with universal ball socket (24) and ball socket (24) are all equipped with, ball socket (24) are all set up on the ball socket side (24), the air holes (25) are uniformly distributed on the clamping sleeve (19), a support (27) is welded at the bottom of the clamping sleeve (19), balls (26) are sleeved on the support (27), the balls (26) are clamped on the outer side of the guide rod (22), and the balls (26) are uniformly distributed at the bottom of the clamping sleeve (19).
2. A ground subsidence detection apparatus for a coal mine goaf as claimed in claim 1, wherein: one side of the shield (1) is welded with a hook (4), a scraper is arranged at the top of the detector (3), and the detector (3) is hung on the hook (4) through the scraper.
3. A ground subsidence detection apparatus for a coal mine goaf as claimed in claim 1, wherein: the detector is characterized in that a bayonet is formed in the detector (3), the detector (5) is clamped at the inner side of the bayonet, a junction box (6) is arranged at the inner side of the detector (3), and wiring is arranged at the inner side of the junction box (6).
4. A ground subsidence detection apparatus for a coal mine goaf as claimed in claim 1, wherein: the inner side of branch (2) has seted up the internal thread, the external screw thread has been seted up on lead screw (8), the internal screw thread cooperatees with the external screw thread, the top at gyro wheel (7) is installed through the bearing to the bottom of lead screw (8), the top of lead screw (8) passes branch (2) and extends to the top of branch (2), the top welding of lead screw (8) has crank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528448.5A CN114923456B (en) | 2022-05-16 | 2022-05-16 | Ground subsidence detection device for coal mine goaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528448.5A CN114923456B (en) | 2022-05-16 | 2022-05-16 | Ground subsidence detection device for coal mine goaf |
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| Publication Number | Publication Date |
|---|---|
| CN114923456A CN114923456A (en) | 2022-08-19 |
| CN114923456B true CN114923456B (en) | 2024-05-14 |
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| CN202210528448.5A Active CN114923456B (en) | 2022-05-16 | 2022-05-16 | Ground subsidence detection device for coal mine goaf |
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| CN117073624B (en) * | 2023-10-11 | 2024-03-22 | 中煤科工集团武汉设计研究院有限公司 | Coal mine goaf earth surface subsidence monitoring device |
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|---|---|---|---|---|
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