CN116201581A - Supporting device and method for coal mine underground roadway with crossed three-dimensional structure - Google Patents
Supporting device and method for coal mine underground roadway with crossed three-dimensional structure Download PDFInfo
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- CN116201581A CN116201581A CN202310169555.8A CN202310169555A CN116201581A CN 116201581 A CN116201581 A CN 116201581A CN 202310169555 A CN202310169555 A CN 202310169555A CN 116201581 A CN116201581 A CN 116201581A
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- 239000003245 coal Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002023 wood Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000007921 spray Substances 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 241001669679 Eleotris Species 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 101100537937 Caenorhabditis elegans arc-1 gene Proteins 0.000 description 6
- 238000004880 explosion Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 241001233242 Lontra Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention relates to the technical field of mine roadway support, in particular to a support device and a method for a coal mine underground roadway of a cross three-dimensional structure. According to the invention, the arc-shaped plates are supported by the first inner column and the second inner column through the sleeve, so that on one hand, the gravity at the top of a coal mine borne by the wood stick can be shared, and on the other hand, the position of the base can be further fixed through the second clamping ring, and therefore, the sleeper and the steel rail are reinforced.
Description
Technical Field
The invention relates to the field of mine roadway support, in particular to a support device and a method for a coal mine underground roadway with a crossed three-dimensional structure.
Background
After the underground coal mine tunnel is excavated, the original three-dimensional stress balance state of the surrounding rock of the tunnel roof side wall is broken, and in order to keep the stability of the coal mine tunnel, the surrounding rock is prevented from collapsing or excessively deforming, and support is generally carried out after the tunnel is tunneled.
The patent with the publication number of CN213478375U discloses a temporary supporting structure of a coal mine underground roadway, which comprises a cross beam and lifting hydraulic jacks hinged at two ends of the cross beam; has the advantages of convenient transportation and installation and stable support.
However, the supporting device in "CN213478375U" can only support through the hydraulic prop, and still has a certain defect in terms of stability, and secondly, the underground roadway of the coal mine often needs a plurality of supporting devices, while the supporting device in "CN213478375U" occupies a certain space when a plurality of supporting devices are transported at the same time, which causes an increase in transportation cost, and in order to prevent the situation of excessive gas and gas explosion in the coal mine, a fire sprinkler system is often added in the coal mine, which often causes an increase in construction period and cost.
Disclosure of Invention
The invention aims to provide a supporting device and a method for a coal mine underground roadway with a cross three-dimensional structure, which are used for solving the problems in the background technology.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a supporting device of colliery underworkings of alternately three-dimensional structure, includes a plurality of arc, the equal sliding connection in bottom both ends of arc has the rectangle box body, the activity joint in the bottom both ends of rectangle box body has the stick, the bottom center department activity joint of rectangle box body has the sleeve pipe of supplementary reinforcement, the fixed connection crossbeam in one side bottom center department that two rectangle box bodies are opposite each other, crossbeam and sleeve pipe activity joint, sheathed tube both sides respectively with two stick activity joints, be provided with the base under the arc both ends, one side that two bases are opposite each other is provided with the rail that is used for transporting coal, one side that a plurality of arc are close to each other is provided with a plurality of communicating pipes that are used for watering, a plurality of arc equidistance are installed in colliery underworkings, the bottom both ends of arc all are provided with the first shower nozzle that is used for watering.
Preferably, the inside of rectangle box body has seted up the smooth chamber, the top sliding connection of smooth chamber has the "T" font sliding plate of handstand, the vertical end top fixed connection of sliding plate is in the bottom of arc, the interior bottom fixedly connected with expansion resin that absorbs water of smooth chamber, expansion resin that absorbs water and the horizontal end butt of sliding plate, the inlet opening has all been seted up to the bottom both sides of rectangle box body, inlet opening and the bottom both sides intercommunication of smooth chamber, the intercommunication department of inlet opening and smooth chamber is provided with the otter board, the top center department fixedly connected with a plurality of pillars of crossbeam, the one end equidistance fixed connection of pillar keeping away from the crossbeam is on the bottom wallboard of arc.
Preferably, the arc wall has been seted up to the inside of arc, and the both ends of communicating pipe are respectively with the arc wall intercommunication of seting up in two adjacent arcs, and a plurality of second shower nozzles have been seted up to the bottom of communicating pipe, and a plurality of first shower nozzles have all been seted up to the bottom both sides of arc, and first shower nozzle and arc wall intercommunication and two intercommunication departments are provided with the solenoid valve, and second shower nozzle and communicating pipe intercommunication and two intercommunication departments also are provided with the solenoid valve, and the arc that is close to colliery mine mouth one end is kept away from the mine and is in depth one side top center department intercommunication has the inlet tube, and inlet tube and colliery fire control sprinkler system intercommunication in pit.
Preferably, the first spacing ring of equal fixedly connected with in bottom both ends of rectangle box body, the bottom center department fixedly connected with second card post of rectangle box body, two bases are located respectively under two rectangle box bodies of same arc bottom, the base top is located the position department fixedly connected with second spacing ring under the first spacing ring, first spacing ring and second spacing ring joint respectively in the both ends of stick, the base top is located the position department fixedly connected with second snap ring under the second card post, second card post and second snap ring joint respectively at sheathed tube top and bottom.
Preferably, the top threaded connection of sheathed tube has first inner column, and sheathed tube bottom threaded connection has the second inner column, and the top fixedly connected with first snap ring of first inner column, the bottom fixedly connected with butt round platform of second inner column, the one end highly connected with first card post of second inner column is kept away from to the butt round platform, first card post and the equal movable joint of second snap ring and first snap ring, and the second card post passes through first snap ring joint at sheathed tube top, and the second snap ring passes through first card post joint in sheathed tube bottom.
Preferably, four storage grooves in the shape of T are formed in the outer side of the sleeve at equal intervals, a fixed shaft is fixedly connected to the top of the vertical end of the storage groove, a rotating sleeve is sleeved on the outer side of the fixed shaft in a rotating mode, a first screw rod is fixedly connected to the center of the side edge of the rotating sleeve, threads of the first screw rod are sleeved on the top of the screw sleeve, threads of the bottom of the screw sleeve are sleeved with second screw rods, and the second screw rods, the first screw rods and the screw sleeves are movably stored in the storage grooves.
Preferably, the one end center department that first lead screw was kept away from to the second lead screw has offered the rectangle recess, and the equal fixedly connected with clockwork spring pivot in both ends of rectangle recess, and the outside rotation of clockwork spring pivot has cup jointed the boss, and the one end fixedly connected with arc cardboard of boss, the one end fixedly connected with fixed block of boss is kept away from to the arc cardboard, has offered the jack in the fixed block, and the activity joint has the bayonet lock in the jack, and two fixed blocks that two arc cardboard kept away from first lead screw one end are fixed through the bayonet lock, and the arc cardboard activity is accomodate at the horizontal end of accomodating the groove.
Preferably, the clamping strips are fixedly connected to the two side wall plates at the two sides of the horizontal end of the storage groove, the two clamping strips are movably clamped with the wall plates at the centers of the two arc clamping plates respectively, the two arc clamping plates at the two sides of the sleeve are movably clamped with the two wood sticks, the two arc clamping plates at the two sides of the sleeve are mutually far away from each other and are respectively abutted with the wall plates at the two sides in the mine tunnel, and the two arc clamping plates at the two sides of the sleeve are mutually close to each other and are movably clamped with the cross beam.
Preferably, a plurality of rectangular grooves are formed in the two opposite sides of the base at equal intervals, sleepers are movably clamped in the rectangular grooves, steel rails are fixedly connected to two sides of the tops of the sleepers, a plurality of built-in pipes are formed in the bottoms of the arc plates and communicated with the arc grooves, and a plurality of first spray heads are respectively arranged at one ends of the built-in pipes, far away from the arc grooves.
The application method of the supporting device of the coal mine underground roadway with the cross three-dimensional structure comprises the following steps:
step one: the base is paved on two sides of the underground coal mine roadway, then the wooden sticks are inserted into the first limiting ring and the second limiting ring, so that the arc-shaped plate is abutted to the top of the underground coal mine roadway, and finally the sleeve is abutted between the second clamping ring and the second clamping column;
step two: the first inner column and the second inner column move towards the direction away from each other by rotating the sleeve, the sleeve is abutted between the base and the arc-shaped plate, and then the arc-shaped clamping plates at two sides of the sleeve are clamped at the outer sides of two wood sticks adjacent to the sleeve, so that the wood sticks are reinforced;
step three: the arc-shaped clamping plate on one side of the underground coal mine roadway is clamped on the cross beam, the arc-shaped clamping plate on one side of the sleeve, which is close to the underground coal mine roadway, is abutted on the inner wall of the roadway, the arc-shaped plate and the sleeve are further reinforced, and the underground water spraying work is performed on the roadway through the first spray head and the second spray head.
The invention has the beneficial effects that:
1. according to the invention, the arc-shaped plates are supported by the first inner column and the second inner column through the sleeve, so that on one hand, the gravity at the top of a coal mine borne by the wood stick can be shared, and on the other hand, the position of the base can be further fixed through the second clamping ring, and therefore, the sleeper and the steel rail are reinforced; four arc-shaped clamping plates on four sides of the sleeve are respectively abutted with two wood sticks, a cross beam and the side wall inside a mine, the sleeve is fixed through a three-dimensional crossed structure, and meanwhile, the arc-shaped plate and the base can be reinforced, so that the device has stability when supporting a mine roadway.
2. According to the invention, through the arrangement of the communicating pipe, the first spray head and the second spray head, the water spraying operation can be effectively carried out in a roadway, on one hand, the dust raising in the mine can be reduced, on the other hand, the gas content in the mine can be reduced in a water spraying mode, further, the occurrence of mine accidents caused by gas explosion in the mine is avoided, the safety of mine development is improved, and secondly, the communicating pipe can also carry out auxiliary support on the wall plate at the top of the mine, and the water pressure in the arc-shaped groove and the communicating pipe is in a high-pressure state, so that the rigidity of the communicating pipe is improved, on the one hand, the supporting force of the communicating pipe on the wall plate at the top of the mine can be ensured, and on the other hand, the situation that a fire sprinkler system is required to be reinstalled on a supporting device in the traditional mine can be avoided, and the cost is saved.
3. According to the sleeve stacking device, the sleeves are stacked through the first clamping rings and the first clamping columns, and the first clamping columns and the first clamping rings which are longitudinally adjacent to each other and are close to one end of each other are clamped, so that the sleeves can be effectively stacked; through accomodating the groove and accomodating arc cardboard, can reduce sheathed tube occupation space, and then make the sleeve pipe more save space at the transportation in-process when recycle, improve transportation efficiency, simultaneously at the in-process of transporting, also accessible arc cardboard consolidates between two horizontal adjacent sleeve pipes, avoids the sleeve pipe to appear the condition that removes in the in-process of transporting and take place.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view of the mounting structure of the arcuate plate of the present invention;
FIG. 2 is an enlarged schematic view of the structure of the portion A shown in FIG. 1 according to the present invention;
FIG. 3 is a schematic cross-sectional view of the arcuate slot of the present invention;
FIG. 4 is an enlarged schematic view of the structure of the portion B shown in FIG. 3 according to the present invention;
FIG. 5 is an enlarged schematic view of the structure of the portion C shown in FIG. 3 according to the present invention;
FIG. 6 is a schematic view of the mounting structure of the inner tube of the present invention;
FIG. 7 is a schematic view of the mounting structure of the first stop collar of the present invention;
FIG. 8 is a schematic view of the overall structure of the base of the present invention;
FIG. 9 is a schematic view of the connection structure of the sleeve of the present invention;
FIG. 10 is a schematic view of the mounting structure of the first snap ring of the present invention;
FIG. 11 is a schematic cross-sectional view of the first inner column of the present invention;
FIG. 12 is a schematic view of the connection structure of the arcuate clamping plate of the present invention;
FIG. 13 is a schematic view showing the effect of the overall structure of the present invention after installation;
reference numerals in the drawings are as follows: 1. an arc-shaped plate; 2. a water inlet pipe; 3. a first nozzle; 4. a wood stick; 5. a sleeve; 6. a rectangular box body; 7. a second nozzle; 8. a base; 9. a sleeper; 10. a steel rail; 11. a communicating pipe; 12. an arc-shaped groove; 13. a support post; 14. a cross beam; 15. a storage groove; 16. a fixed shaft; 17. a first screw rod; 18. a silk sleeve; 19. a second screw rod; 20. an arc-shaped clamping plate; 21. clamping strips; 22. a first inner column; 23. a second inner column; 24. a water inlet hole; 25. a sliding plate; 26. a sliding cavity; 27. a water-swellable resin; 28. a built-in tube; 29. a first stop collar; 30. a first snap ring; 31. a first clamping column; 32. rectangular grooves; 33. abutting against the round table; 34. rotating the sleeve; 35. a fixed block; 36. a bayonet lock; 37. a boss; 38. a second snap ring; 39. a second limiting ring; 40. and the second clamping column.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-13, a supporting device for a coal mine underground roadway of a crossed three-dimensional structure comprises a plurality of arc plates 1, wherein two ends of the bottom of each arc plate 1 are slidably connected with rectangular box bodies 6, two ends of the bottom of each rectangular box body 6 are movably clamped with wood sticks 4, an auxiliary reinforced sleeve 5 is movably clamped at the center of the bottom of each rectangular box body 6, a cross beam 14 is fixedly connected with the center of one side of each rectangular box body 6 opposite to each other, the cross beams 14 are movably clamped with the sleeve 5, two sides of each sleeve 5 are movably clamped with the two wood sticks 4, bases 8 are arranged under two ends of each arc plate 1, two opposite sides of each base 8 are provided with steel rails 10 for transporting coal, one side of each arc plate 1, which is close to each other, is provided with a plurality of communicating pipes 11 for sprinkling water, the arc plates 1 are equidistantly arranged in the coal mine underground roadway, and two ends of the bottom of each arc plate 1 are provided with first sprinklers 3 for sprinkling water. By connecting the base 8 and the arc plate 1 into a whole, the device can be more stable, and the supporting capacity of the device is improved.
As shown in fig. 1-3, fig. 5 and fig. 13, a sliding cavity 26 is formed in the rectangular box body 6, an inverted T-shaped sliding plate 25 is slidably connected to the top of the sliding cavity 26, the top of the vertical end of the sliding plate 25 is fixedly connected to the bottom of the arc plate 1, water-absorbing expansion resin 27 is fixedly connected to the inner bottom of the sliding cavity 26, the water-absorbing expansion resin 27 is abutted to the horizontal end of the sliding plate 25, water inlet holes 24 are formed in two sides of the bottom of the rectangular box body 6, the water inlet holes 24 are communicated with two sides of the bottom of the sliding cavity 26, a screen is arranged at the communication position of the water inlet holes 24 and the sliding cavity 26, a plurality of struts 13 are fixedly connected to the center of the top of the cross beam 14, and one end, far away from the cross beam 14, of each strut 13 is fixedly connected to a bottom wall plate of the arc plate 1 at equal intervals. The water-absorbent expansion resin 27 expands after absorbing water, so that on one hand, the water vapor in the mine can be reduced, and on the other hand, the arc plate 1 can be tightly propped against the top wall plate of the underground tunnel of the coal mine after the water-absorbent expansion resin 27 expands.
As shown in fig. 1-3 and fig. 6, an arc groove 12 is formed in the arc plate 1, two ends of a communicating pipe 11 are respectively communicated with the arc grooves 12 formed in two adjacent arc plates 1, a plurality of second spray heads 7 are formed in the bottom of the communicating pipe 11, a plurality of first spray heads 3 are formed in two sides of the bottom of the arc plate 1, the first spray heads 3 are communicated with the arc groove 12, electromagnetic valves are arranged at the communicating positions of the first spray heads 3 and the arc grooves 12, electromagnetic valves are also arranged at the communicating positions of the second spray heads 7 and the communicating pipe 11, a water inlet pipe 2 is communicated with the center of the top of one side, which is far away from a mine and is deeper, of the arc plate 1 near one end of a mine mouth of a coal mine, and the water inlet pipe 2 is communicated with a fire-fighting sprinkler system in the coal mine. The ground outside the coal mine must be provided with a water pool which is communicated with a fire sprinkler system under the coal mine, and the technology is common knowledge of the person skilled in the art, and is not disclosed herein too much.
As shown in fig. 4 and fig. 7-10, the two ends of the bottom of the rectangular box body 6 are fixedly connected with a first limiting ring 29, the center of the bottom of the rectangular box body 6 is fixedly connected with a second clamping post 40, two bases 8 are respectively located under the two rectangular box bodies 6 at the bottom of the same arc plate 1, the top of each base 8 is located under the corresponding first limiting ring 29, a second limiting ring 39 is fixedly connected to the position of each base 8, the first limiting ring 29 and the second limiting ring 39 are respectively clamped at the two ends of the wooden stick 4, the top of each base 8 is located under the corresponding second clamping post 40, and the second clamping post 40 and the second clamping post 38 are respectively clamped at the top and the bottom of the corresponding sleeve 5. The first limiting ring 29 and the second limiting ring 39 are matched with the wood stick 4, and the first limiting ring 29 and the second limiting ring 39 are respectively sleeved at two ends of the wood stick 4.
As shown in fig. 4 and fig. 7-11, the top threaded connection of sleeve 5 has first inner column 22, the bottom threaded connection of sleeve 5 has second inner column 23, the top fixedly connected with first snap ring 30 of first inner column 22, the bottom fixedly connected with butt round platform 33 of second inner column 23, the one end height that butt round platform 33 kept away from second inner column 23 is connected with first card post 31, first card post 31 and second snap ring 38 and the equal activity joint of first snap ring 30, second card post 40 passes through first snap ring 30 joint at the top of sleeve 5, second snap ring 38 passes through first card post 31 joint at the bottom of sleeve 5. The first clamping column 31 and the second clamping column 40 are respectively composed of two semicircular flanges, the first clamping ring 30 and the second clamping ring 38 are respectively composed of a circular ring and a transverse bar, the transverse bar is fixedly connected to the center of the circular ring, the circular ring is split into two semicircular clamping grooves by the transverse bar, and the two semicircular flanges are respectively clamped in the two semicircular clamping grooves.
As shown in fig. 4 and fig. 9-12, four T-shaped storage grooves 15 are formed in the outer side of the sleeve 5 at equal intervals, a fixed shaft 16 is fixedly connected to the top of the vertical end of each storage groove 15, a rotating sleeve 34 is rotatably sleeved on the outer side of each fixed shaft 16, a first screw rod 17 is fixedly connected to the center of the side edge of each rotating sleeve 34, threads of the first screw rods 17 are sleeved on the top of each wire sleeve 18, second screw rods 19 are sleeved on the bottom threads of the wire sleeves 18, and the second screw rods 19, the first screw rods 17 and the wire sleeves 18 are movably stored in the storage grooves 15. The setting of accomodating groove 15 can effectually reduce sleeve pipe 5's occupation space, is convenient for recycle to sleeve pipe 5, after mine exploitation finishes, often can be to the water injection in the mine, through the recycle to sleeve pipe 5, also can avoid sleeve pipe 5 to appear rusty condition because of soaking in the aquatic for a long time in the mine inside, and then lead to the inside quality of water variation's that pours into of mine to appear.
As shown in fig. 4 and fig. 9-12, a rectangular groove is formed in the center of one end of the second screw rod 19 far away from the first screw rod 17, spring shafts are fixedly connected to two ends of the rectangular groove, a boss 37 is sleeved on the outer side of each spring shaft in a rotating mode, an arc clamping plate 20 is fixedly connected to one end of each boss 37, a fixing block 35 is fixedly connected to one end of each arc clamping plate 20 far away from each boss 37, an inserting hole is formed in each fixing block 35, a clamping pin 36 is movably clamped in each inserting hole, two fixing blocks 35, far away from one end of the first screw rod 17, of the two arc clamping plates 20 are fixed through the corresponding clamping pins 36, and the arc clamping plates 20 are movably accommodated in the horizontal ends of the accommodating grooves 15. The spring is arranged in the spring rotating shaft, and the spring can enable the two arc clamping plates 20 at the end part of the same second screw rod 19 to rotate in the direction away from each other.
As shown in fig. 9-12, two side wall boards at the horizontal end of the storage groove 15 are fixedly connected with clamping strips 21, the two clamping strips 21 are movably clamped with wall boards at the centers of the two arc clamping boards 20 respectively, the two arc clamping boards 20 positioned at two sides of the sleeve 5 are movably clamped with the two wood sticks 4, the two arc clamping boards 20 at one side, far away from each other, of the two sleeve 5 are respectively abutted with two wall boards in a mine roadway, and the two arc clamping boards 20 at one side, close to each other, of the two sleeve 5 are movably clamped with the cross beam 14. Four arc-shaped clamping plates 20 on four sides of the sleeve 5 are respectively abutted against the two wood sticks 4, the cross beam 14 and the side wall inside the mine, the sleeve 5 is fixed through a three-dimensional crossed structure, and meanwhile, the arc-shaped plate 1 and the base 8 can be reinforced, so that the device has stability when supporting a mine roadway.
As shown in fig. 1, 6, 8 and 13, a plurality of rectangular grooves 32 are formed in the opposite sides of the two bases 8 at equal intervals, sleepers 9 are movably clamped in the rectangular grooves 32, steel rails 10 are fixedly connected to two sides of the tops of the sleepers 9, a plurality of built-in pipes 28 are formed in the bottoms of the arc plates 1, the built-in pipes 28 are communicated with the arc grooves 12, and a plurality of first spray heads 3 are respectively arranged at one ends, far away from the arc grooves 12, of the built-in pipes 28. The rail 10 enables efficient transportation of coal mined from the interior of the mine.
The application method of the supporting device of the coal mine underground roadway with the cross three-dimensional structure comprises the following steps:
step one: the base 8 is paved on two sides of the underground coal mine roadway, then the wooden sticks 4 are inserted into the first limiting ring 29 and the second limiting ring 39, so that the arc-shaped plate 1 is abutted against the top of the underground coal mine roadway, and finally the sleeve 5 is abutted between the second clamping ring 38 and the second clamping column 40;
step two: the first inner column 22 and the second inner column 23 move away from each other by rotating the sleeve 5, so that the sleeve 5 is abutted between the base 8 and the arc-shaped plate 1, and then the arc-shaped clamping plates 20 on two sides of the sleeve 5 are clamped on the outer sides of two wood sticks 4 adjacent to the sleeve 5, so that the wood sticks 4 are reinforced;
step three: the arc-shaped clamping plate 20 on one side of the underground coal mine roadway is clamped on the cross beam 14, the arc-shaped clamping plate 20 on one side of the underground coal mine roadway is abutted against the inner wall of the roadway, the arc-shaped plate 1 and the sleeve 5 are further reinforced, and the underground coal mine roadway is subjected to sprinkling through the first spray head 3 and the second spray head 7.
In the prior art, after coal mining is finished, coal cinder is often filled in a mine and water is injected into the mine, after mining is finished, when water is injected into a waste mine, the wood stick 4 cannot rust, the situation that water quality in the mine is poor due to rust caused by metal soaking in water is avoided, secondly, after water is injected into the mine, water can support a wall plate at the top of the mine, the water in the mine can support the ground at the top of the mine, collapse can be prevented from occurring, and due to the fact that the cost of a wooden product is lower than that of a metal product, the cost can be saved while the water quality in the mine is guaranteed.
When the sleeper 9 fixing device is used, the bases 8 are paved on two sides of a coal mine underground roadway, the sleepers 9 are placed in the rectangular grooves 32 on the opposite sides of the two bases 8, so that the two bases 8 effectively fix the sleepers 9, and the steel rail 10 is paved on the top of the sleepers 9, so that the steel rail 10 can be effectively fixed. Then through pegging graft wooden rod 4 in first spacing ring 29 and second spacing ring 39 for arc 1 butt is at the top in colliery underworkings, make wooden rod 4 carry out effectual support with base 8 and arc 1 by the support in colliery underworkings, prevent that colliery underworkings from taking place the condition that collapses and appearing, wooden rod 4 supports respectively between rectangle box body 6 and base 8, through the setting of first spacing ring 29 and second spacing ring 39, can effectually carry out spacing fixed wooden rod 4, prevent that the circumstances of skew from taking place for the support of arc 1 from taking place for wooden rod 4, finally through with sleeve pipe 5 butt between second snap ring 38 and second draw-in post 40.
Through rotating sleeve 5 makes first inner column 22 and second inner column 23 remove to the direction that keeps away from each other, and then make the butt of sleeve 5 between base 8 and arc 1, the joint can take place with second clamp column 40 to the first clamp ring 30 that is located sleeve 5 top, the first clamp column 31 that is located sleeve 5 below can carry out the joint with the second clamp ring 38 on the base 8, through rotating sleeve 5, make first inner column 22 and second inner column 23 remove to the direction that keeps away from each other, and then make first clamp ring 30 joint in the outside of second clamp column 40, make first clamp column 31 joint in second clamp ring 38, make first inner column 22 and second inner column 23 support arc 1 through sleeve 5 simultaneously, on the one hand can share the gravity at the colliery mine top that wooden stick 4 bore, on the other hand also can carry out further fixation through the position of second clamp ring 38 to base 8, and then make sleeper 9 and rail 10 obtain the reinforcement.
The wood sticks 4 are then reinforced by clamping the arcuate clamping plates 20 on both sides of the sleeve 5 to the outer sides of two wood sticks 4 adjacent to the sleeve 5. In this process, the two arc clamping plates 20 at the end of the same second screw rod 19 are moved towards the direction of approaching each other, so that the clamping connection between the two arc clamping plates 20 and the two clamping strips 21 is separated, then the screw sleeve 18 drives the first screw rod 17 and the second screw rod 19 to move out of the accommodating groove 15 by taking the fixed shaft 16 as the center, and then the two screw sleeves 18 at two sides of the sleeve 5 are rotated to a horizontal state. After the silk cover 18 is the horizontality, make second lead screw 19 and silk cover 18 remove to the direction of keeping away from fixed axle 16 through rotating silk cover 18, and then make the one end that first lead screw 17 was kept away from to second lead screw 19 and wood rod 4 butt, afterwards through rotating arc cardboard 20 with the clockwork spring pivot as the center, make arc cardboard 20 can cup joint in the both sides of wood rod 4, fix two arc cardboard 20 through bayonet lock 36, two arc cardboard 20 constitute a ring and this ring cup joints in the outside of wood rod 4 this moment, sleeve pipe 5 passes through silk cover 18 and wood rod 4 take place to cross, become a whole through cross connection with wood rod 4 and sleeve pipe 5, and then make sleeve pipe 5 and wood rod 4 carry out further reinforcement to arc 1 and base 8, improve the holistic stability of the device.
Through keeping away from the arc cardboard 20 joint on crossbeam 14 of colliery underworkings one side with sleeve pipe 5, in this process, through keeping away from the silk cover 18 from the colliery underworkings one side with sleeve pipe 5 and come out from the holding tank 15 internal rotation, rotate the silk cover 18 become and present the obtuse angle with vertical plane for silk cover 18 is oriented obliquely upwards, then make second lead screw 19 and crossbeam 14 butt through rotating the silk cover 18, through carrying out cross connection with arc cardboard 20 joint on crossbeam 14, carry out cross connection between crossbeam 14 and sleeve pipe 5 through arc cardboard 20, can be further consolidate the device, and sleeve pipe 5 this moment, crossbeam 14 and silk cover 18 constitute a triangle-shaped, triangle-shaped has stability, the holistic stability of the device has been improved greatly, improve the device to the support ability of colliery mine.
And the arc-shaped clamping plate 20 on one side of the sleeve 5, which is close to the underground tunnel of the coal mine, is abutted against the inner wall of the tunnel, so that the arc-shaped plate 1 and the sleeve 5 are further reinforced. In the process, the wire sleeve 18 close to one side of the underground coal mine roadway rotates out of the storage groove 15, then after the wire sleeve 18 rotates to a horizontal state, the clamping pins 36 at the end parts of the arc clamping plates 20 are taken out, one ends of the arc clamping plates 20, which are far away from the second screw rod 19, rotate towards the directions away from each other by taking the spring rotating shaft as the center, when the two fixing blocks 35 and the two bosses 37 are positioned on the same straight line, the arc clamping plates 20 stop rotating, at the moment, the bosses 37 are abutted with the bottom wall plates of the rectangular grooves, the arc clamping plates 20 cannot continue rotating, the second screw rod 19 is enabled to move towards the directions away from the fixing shaft 16 by rotating the wire sleeve 18, then one ends of the two fixing blocks 35, the two bosses 37 and the second screw rod 19, which are far away from the first screw rod 17, are abutted with the side walls of the underground coal mine roadway, the side edges of the sleeve 5 are fixed, the distance between the bases 8 is further fixed, and the sleeve 5 at two sides of the roadway can apply a force close to each other to the two bases 8 through the first clamping columns 31 and the second clamping rings 38, so that the underground coal mine roadway 9 can be clamped tightly, and the underground coal mine roadway 9 can be clamped tightly.
When the sprinkling work is needed to be carried out in the mine, water flow is input into the water inlet pipe 2 through a fire sprinkler system in the mine, then the electromagnetic valves in the first sprinkler head 3 and the second sprinkler head 7 are opened, and the sprinkling work is carried out in the tunnel underground through the first sprinkler head 3 and the second sprinkler head 7. Through carrying out watering work in the tunnel, on the one hand can reduce the raise dust of mine inside, on the other hand also can reduce the gas content in the mine through the mode of watering, and then avoid the inside emergence gas explosion of mine to cause the emergence of mine accident, improve the security of mine development.
Communicating pipe 11 except can carry out watering through second shower nozzle 7, also can support mine top wallboard, when not carrying out watering to the mine inside, close the solenoid valve in first shower nozzle 3 and the second shower nozzle 7, carry out the work of drawing water in to arc wall 12 and communicating pipe 11 through inlet tube 2 afterwards, make arc wall 12 and communicating pipe 11 in the water pressure be in the high pressure state, and then can produce the effect of a "hydraulic pressure" through communicating pipe 11 inside, and then improve communicating pipe 11's rigidity, on the one hand can ensure communicating pipe 11 to mine top wallboard's holding power, on the other hand also can avoid traditional mine inside condition that needs fire control sprinkler system again to install on strutting arrangement to appear, save the cost.
After mine excavation finishes, through dismantling sleeve pipe 5, recycle is carried out to sleeve pipe 5, pile up neatly through first snap ring 30 and first draw-in column 31, carry out the joint with first draw-in column 31 and the first snap ring 30 that two vertically adjacent sleeve pipes 5 are close to one end each other, can effectually pile up neatly to sleeve pipe 5, accomodate arc cardboard 20 through accomodating groove 15, can reduce sleeve pipe 5's occupation space, and then make sleeve pipe 5 more save space in the transportation process when recycling, improve transportation efficiency, simultaneously at the in-process of transportation, also accessible arc cardboard 20 consolidates between two laterally adjacent sleeve pipes 5, avoid sleeve pipe 5 to appear moving the condition emergence in the in-process of transportation.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (10)
1. The utility model provides a supporting device of colliery underworkings of alternately three-dimensional structure, includes a plurality of arc (1), its characterized in that, the equal sliding connection in bottom both ends of arc (1) has rectangle box body (6), the activity joint in bottom both ends of rectangle box body (6) has stick (4), the activity joint in bottom center department of rectangle box body (6) has supplementary reinforced sleeve pipe (5), one side bottom center department fixedly connected with crossbeam (14) that are opposite each other of two rectangle box bodies (6), crossbeam (14) and sleeve pipe (5) activity joint, the both sides of sleeve pipe (5) respectively with two stick (4) activity joint, be provided with base (8) under arc (1) both ends, one side that two bases (8) are opposite each other is provided with rail (10) that are used for transporting coal, one side that a plurality of arcs (1) are close to each other is provided with a plurality of communicating pipe (11) that are used for watering, a plurality of arc (1) equidistance are installed in colliery underworkings, the bottom both ends of arc (1) all are provided with first shower nozzle (3) that are used for watering.
2. The supporting device of the underground coal mine roadway with the crossed three-dimensional structure according to claim 1, wherein a sliding cavity (26) is formed in the rectangular box body (6), an inverted T-shaped sliding plate (25) is connected to the top of the sliding cavity (26) in a sliding mode, the top of the vertical end of the sliding plate (25) is fixedly connected to the bottom of the arc-shaped plate (1), water-absorbing expansion resin (27) is fixedly connected to the inner bottom of the sliding cavity (26), the water-absorbing expansion resin (27) is abutted to the horizontal end of the sliding plate (25), water inlet holes (24) are formed in two sides of the bottom of the rectangular box body (6), the water inlet holes (24) are communicated with two sides of the bottom end of the sliding cavity (26), a screen plate is arranged at the communicating position of the water inlet holes (24) and the sliding cavity (26), a plurality of struts (13) are fixedly connected to the center of the top of the cross beam (14), and one ends of the struts (13) far away from the cross beam (14) are fixedly connected to the bottom wall plate of the arc-shaped plate (1) in equal distance.
3. The supporting device of the underground coal mine roadway with the crossed three-dimensional structure according to claim 2, wherein the arc-shaped grooves (12) are formed in the arc-shaped plates (1), two ends of the communicating pipe (11) are respectively communicated with the arc-shaped grooves (12) formed in the two adjacent arc-shaped plates (1), a plurality of second spray heads (7) are formed in the bottoms of the communicating pipes (11), a plurality of first spray heads (3) are formed in two sides of the bottoms of the arc-shaped plates (1), the first spray heads (3) are communicated with the arc-shaped grooves (12), electromagnetic valves are arranged at the communicating positions of the first spray heads and the arc-shaped plates (12), electromagnetic valves are also arranged at the communicating positions of the second spray heads (7) and the communicating pipes (11), one side, far away from a mine, of the arc-shaped plate (1) close to one end of a mine opening is communicated with a water inlet pipe (2), and the water inlet pipe (2) is communicated with an underground coal mine fire-fighting sprinkler system.
4. The supporting device of the underground coal mine roadway with the crossed three-dimensional structure according to claim 3, wherein the two ends of the bottom of the rectangular box body (6) are fixedly connected with first limiting rings (29), the second clamping columns (40) are fixedly connected to the center of the bottom of the rectangular box body (6), the two bases (8) are respectively located under the two rectangular box bodies (6) at the bottom of the same arc plate (1), the second limiting rings (39) are fixedly connected to the top of the base (8) at positions right under the first limiting rings (29), the first limiting rings (29) and the second limiting rings (39) are respectively clamped at the two ends of the wood sticks (4), the second clamping rings (38) are fixedly connected to the positions of the tops of the bases (8) located under the second clamping columns (40), and the second clamping columns (40) and the second clamping rings (38) are respectively clamped at the top and the bottom of the sleeve (5).
5. The supporting device of the coal mine underground roadway with the crossed three-dimensional structure according to claim 4, wherein a first inner column (22) is connected to the top of the sleeve (5) in a threaded mode, a second inner column (23) is connected to the bottom of the sleeve (5) in a threaded mode, a first clamping ring (30) is fixedly connected to the top of the first inner column (22), a butt round table (33) is fixedly connected to the bottom of the second inner column (23), a first clamping column (31) is connected to the butt round table (33) at the height of one end, far away from the second inner column (23), of the butt round table, the first clamping column (31) is movably clamped with a second clamping ring (38) and the first clamping ring (30), the second clamping column (40) is clamped to the top of the sleeve (5) through the first clamping ring (30), and the second clamping ring (38) is clamped to the bottom of the sleeve (5) through the first clamping column (31).
6. The supporting device of the coal mine underground roadway with the crossed three-dimensional structure according to claim 5, wherein four T-shaped containing grooves (15) are formed in the outer side of the sleeve (5) at equal intervals, a fixed shaft (16) is fixedly connected to the top of the vertical end of each containing groove (15), a rotating sleeve (34) is sleeved on the outer side of each fixed shaft (16) in a rotating mode, a first screw rod (17) is fixedly connected to the center of the side edge of each rotating sleeve (34), the first screw rod (17) is in threaded sleeve connection with the top of each screw sleeve (18), a second screw rod (19) is in threaded sleeve connection with the bottom of each screw sleeve (18), and the second screw rods (19), the first screw rods (17) and the screw sleeves (18) are all movably contained in the corresponding containing grooves (15).
7. The supporting device of the underground coal mine roadway with the crossed three-dimensional structure according to claim 6, wherein a rectangular groove is formed in the center of one end of the second screw rod (19) away from the first screw rod (17), spring rotating shafts are fixedly connected to two ends of the rectangular groove, a boss (37) is sleeved on the outer side of each spring rotating shaft in a rotating mode, an arc clamping plate (20) is fixedly connected to one end of each boss (37), one end of each arc clamping plate (20) away from each boss (37) is fixedly connected with a fixing block (35), a jack is formed in each fixing block (35), clamping pins (36) are movably clamped in the jack, two fixing blocks (35) at one end, away from the first screw rod (17), of each arc clamping plate (20) are fixed through the corresponding clamping pins (36), and the arc clamping plates (20) are movably contained in the horizontal ends of the containing grooves (15).
8. The supporting device of the underground coal mine roadway with the crossed three-dimensional structure according to claim 7, wherein clamping strips (21) are fixedly connected to two side wall plates at the horizontal end of the storage groove (15), the two clamping strips (21) are movably clamped with wall plates at the centers of the two arc clamping plates (20) respectively, the two arc clamping plates (20) located at the two sides of the sleeve (5) are movably clamped with the two wood sticks (4), the two arc clamping plates (20) at the side, away from each other, of the two sleeve (5) are respectively abutted with two side wall plates in the mine roadway, and the two arc clamping plates (20) at the side, close to each other, of the two sleeve (5) are movably clamped with the cross beam (14).
9. The supporting device of the underground coal mine roadway with the crossed three-dimensional structure according to claim 8, wherein a plurality of rectangular grooves (32) are formed in one side, opposite to each other, of each base (8), sleepers (9) are movably clamped in the rectangular grooves (32), steel rails (10) are fixedly connected to two sides of the tops of the sleepers (9), a plurality of built-in pipes (28) are formed in the bottoms of the arc plates (1), the built-in pipes (28) are communicated with the arc grooves (12), and a plurality of first spray heads (3) are respectively arranged at one ends, far away from the arc grooves (12), of the built-in pipes (28).
10. The method for using the supporting device of the underground coal mine roadway with the crossed three-dimensional structure according to claim 9, which is characterized by comprising the following steps:
step one: the base (8) is paved on two sides of a coal mine underground roadway, then the wooden sticks (4) are inserted into the first limiting ring (29) and the second limiting ring (39) so that the arc-shaped plate (1) is abutted to the top of the coal mine underground roadway, and finally the sleeve (5) is abutted between the second clamping ring (38) and the second clamping column (40);
step two: the sleeve (5) is rotated to enable the first inner column (22) and the second inner column (23) to move in the direction away from each other, so that the sleeve (5) is abutted between the base (8) and the arc-shaped plate (1), and then the arc-shaped clamping plates (20) on two sides of the sleeve (5) are clamped on the outer sides of two wood sticks (4) adjacent to the sleeve (5), so that the wood sticks (4) are reinforced;
step three: the arc-shaped clamping plate (20) on one side of the underground coal mine roadway is clamped on the cross beam (14) through the sleeve (5), the arc-shaped clamping plate (20) on one side of the underground coal mine roadway is abutted against the inner wall of the roadway, the arc-shaped plate (1) and the sleeve (5) are further reinforced, and the underground coal mine roadway is subjected to sprinkling through the first spray head (3) and the second spray head (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310169555.8A CN116201581A (en) | 2023-02-27 | 2023-02-27 | Supporting device and method for coal mine underground roadway with crossed three-dimensional structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310169555.8A CN116201581A (en) | 2023-02-27 | 2023-02-27 | Supporting device and method for coal mine underground roadway with crossed three-dimensional structure |
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| Publication Number | Publication Date |
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| CN116201581A true CN116201581A (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310169555.8A Withdrawn CN116201581A (en) | 2023-02-27 | 2023-02-27 | Supporting device and method for coal mine underground roadway with crossed three-dimensional structure |
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| CN (1) | CN116201581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117248951A (en) * | 2023-11-17 | 2023-12-19 | 安徽省交通控股集团有限公司 | Tunnel excavation supporting structure and application method thereof |
-
2023
- 2023-02-27 CN CN202310169555.8A patent/CN116201581A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117248951A (en) * | 2023-11-17 | 2023-12-19 | 安徽省交通控股集团有限公司 | Tunnel excavation supporting structure and application method thereof |
| CN117248951B (en) * | 2023-11-17 | 2024-02-13 | 安徽省交通控股集团有限公司 | Tunnel excavation supporting structure and application method thereof |
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