CN113982513B - Conveying device in drill hole of three-dimensional laser scanning system in goaf and using method - Google Patents
Conveying device in drill hole of three-dimensional laser scanning system in goaf and using method Download PDFInfo
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- CN113982513B CN113982513B CN202111502852.7A CN202111502852A CN113982513B CN 113982513 B CN113982513 B CN 113982513B CN 202111502852 A CN202111502852 A CN 202111502852A CN 113982513 B CN113982513 B CN 113982513B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims description 23
- 238000010276 construction Methods 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 239000011435 rock Substances 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011202 physical detection method Methods 0.000 description 2
- 229920006052 Chinlon® Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010252 digital analysis Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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Abstract
The invention provides an in-hole conveying device of a three-dimensional laser scanning system in a goaf and a using method of the in-hole conveying device, and belongs to the technical field of mining. The device includes the outer tube, interior stay pipe, clamping screw and haulage rope, and the outer tube inboard sets up the outer tube slide rail, props a tub sliding tray in interior stay outside of tubes surface sets up, and interior stay tub sliding tray is corresponding with the outer tube slide rail, and the top that outer tube and interior prop the pipe sets up outer tube top pulley and interior stay pipe top pulley respectively, provides the slip track for haulage rope one and haulage rope two respectively, and three-dimensional laser detector passes through clamping screw and fixes including in propping the pipe. The device uses through the cooperation of outer tube and interior stay tube, can realize the transport and the recovery of long distance, arbitrary angle of drilling collecting space area three-dimensional laser scanning equipment, and the security is high, can fully guarantee three-dimensional laser scanning equipment's safety. The device parts are made of light materials, and have the advantages of light weight, high strength, low cost and convenient use.
Description
Technical Field
The invention relates to the technical field of mining, in particular to an in-hole conveying device of a three-dimensional laser scanning system in a goaf and a using method thereof.
Background
The goaf is a space formed after an ore body is mined in the underground mining process, hundreds of billions of cubic meters of goafs are formed after dozens of years of large-scale mining, the production safety of mines is seriously threatened, the goaf becomes one of major hazard sources of mines, the clear text regulation of the national safety supervision bureau needs to be processed in time, and the key premise for detecting the goaf is to accurately find the goaf and effectively detect the goaf.
At present, the main detection means comprise a physical detection method and a three-dimensional laser scanning detection method, the physical detection method mainly detects the resistivity, vibration waves or electromagnetic propagation information of the goaf, so that the detection of the goaf is realized, but the detection precision is low, the position and the shape of the goaf cannot be accurately obtained, and the goaf is usually verified by drilling. The three-dimensional laser scanning detection method can accurately obtain the spatial form data of the goaf, can perform real-time three-dimensional modeling, has strong post-processing capability, and can realize three-dimensional fine modeling and digital analysis of the goaf, but can be realized only by sending three-dimensional laser scanning equipment into the goaf.
For the goaf with the clear channel, personnel can directly carry or send the equipment into the goaf through other devices for scanning, but due to the difference and complexity of underground mining methods, a large number of blind goafs usually exist, the goafs have no clear channel, manual channels need to be constructed to communicate the goafs, and at the moment, how to send the three-dimensional laser equipment into the goaf and safely recover becomes the key of the three-dimensional laser detection of the blind goafs.
In order to realize the three-dimensional laser scanning of the hidden goaf, a construction drilling method is mainly adopted, meanwhile, the volume of the three-dimensional laser scanning equipment is made as small as possible, the equipment is made into a cylinder, and the diameter of the equipment is not more than 50mm, such as the currently commonly used CALS, CSS-200 and other drilling type underground goaf three-dimensional laser scanning equipment. The prior art discloses a movable three-dimensional laser scanning system, which has the advantages of rich functions, high efficiency and high precision, but the system has larger volume and can not be conveyed by drilling. The existing extension device of the three-dimensional laser scanner in the goaf has the advantages of flexibility, high efficiency and good detection effect, but the extension device does not consider the particularity of drilling conveying and can only convey through an artificial roadway. The existing goaf detection device and system can be used for connecting drilling type three-dimensional laser scanning equipment, and have the advantages of simple and reliable structure, but the device does not consider the requirement of drilling conveying. The existing pushing device for the mine underground goaf detection equipment conveys three-dimensional laser scanning equipment into a goaf through wheels by virtue of a fixed tripod, has the advantages of simplicity in operation, good effect and low cost, and does not consider the requirement of drilling conveying.
Disclosure of Invention
The invention provides an in-hole conveying device of a three-dimensional laser scanning system of a gob and a using method thereof, aiming at solving the problems that the conveying of the three-dimensional laser scanning system of the gob is difficult, the hole blocking is easy to occur, the equipment is lost and the like, and can effectively meet the high requirements of the detection depth and the detection angle.
The device includes the outer tube, interior stay pipe, clamping screw and haulage rope, interior stay pipe is arranged in the outer tube, the outer tube inboard sets up the outer tube slide rail, interior stay outside of tubes surface sets up interior stay pipe sliding tray, interior stay pipe sliding tray is corresponding with the outer tube slide rail, the top that outer tube and interior stay pipe set up outer tube top pulley respectively with interior stay pipe top pulley, outer tube top pulley and interior stay pipe top pulley provide the slip track for the haulage rope, three-dimensional laser detector passes through clamping screw and fixes including in propping the pipe.
The outer sleeve is connected through a connecting piece in a multi-section splicing mode, the length of each section is 1-1.5 m, three first threaded holes are arranged at the position, 10-20 mm away from the end portion, of each section of two sides of the outer sleeve, 120 degrees are formed between every two adjacent first threaded holes, and the first threaded holes and the outer sleeve sliding rails are arranged at intervals.
The cross section of the outer sleeve is circular, the diameter of the outer sleeve is not less than 80mm, the wall thickness of the outer sleeve is not more than 2mm, and the outer sleeve is made of aluminum alloy materials.
The outer sleeve sliding rail is provided with three sliding rails which are made of smooth stainless steel bars, and the distance between every two adjacent sliding rails is 120 degrees.
The inner supporting pipe is connected through a connecting piece in a multi-section splicing mode, the length of each section is 1-1.2 m, three threaded holes II are arranged at the positions 10-20 mm away from the end part of two sides of the inner supporting pipe in each section, 120 degrees are arranged between every two adjacent threaded holes, and the threaded holes II and the inner supporting pipe sliding grooves are arranged at intervals.
The cross section of the inner supporting pipe is circular, the diameter of the inner supporting pipe is not less than 60mm, the wall thickness of the inner supporting pipe is not more than 2mm, and the inner supporting pipe is made of an aluminum alloy material.
And the pipe wall of the inner supporting pipe connected with the three-dimensional laser detector is provided with fastening bolt screw holes, the fastening bolt screw holes and the sliding groove of the inner supporting pipe are arranged at intervals, the adjacent fastening bolt screw holes are 120 degrees, and the fixing screw rods are fixed through the fastening bolt screw holes.
The bottom of the outer sleeve is provided with an outer sleeve bottom supporting bolt, and the bottom of the inner supporting pipe is provided with an inner supporting pipe tail pulley.
And scales are arranged on the traction rope every 0.5 m.
The method for applying the device comprises the following steps:
s1: selecting a proper position on site to construct a drill hole towards the direction of the goaf, and after the construction is finished, cleaning rock debris in the hole in a flushing or high-pressure air mode to ensure the smoothness of the wall of the drill hole;
s2: placing an outer sleeve into a drill hole, installing 3 pulleys in three threaded holes I at the upper end part of a first section of the outer sleeve in a bolt fixing mode, respectively penetrating 3 traction ropes I through the 3 pulleys, sending the outer sleeve into the drill hole section by section, connecting each section of the outer sleeve through a connecting piece, sending the outer sleeve into the drill hole in a bolt fixing mode by using a bolt fixing mode, ensuring that the length of 1-1.5 m of the traction rope I is always kept outside the drill hole, and stopping sending when the sending length of the outer sleeve is equal to the length of the drill hole; mounting outer sleeve tail supporting bolts in three threaded holes I on the lower end surface of the last section of outer sleeve from the inside of the outer sleeve to the wall of the hole, and fixing the outer sleeve in the drilled hole;
s3: the three-dimensional laser detector is fixedly installed in the first section of the inner supporting tube, the three-dimensional laser detector is fixed at the middle part of the inner supporting tube through a fastening bolt screw hole by adopting a fastening bolt, and a tail conducting wire of the three-dimensional laser detector is led out from the inner supporting tube; 3 pulleys are arranged in three threaded holes II in the upper end part of the inner supporting tube, one ends of 3 traction ropes I are respectively fixed at the first row of fastening bolts of the inner supporting tube, the 3 traction ropes II are respectively wound around the 3 pulleys in the upper end part of the inner supporting tube, and one ends of the traction ropes II are fixed at the supporting bolts at the tail part of the outer sleeve;
s4: feeding the inner supporting pipes into the outer sleeve section by section, wherein each section of inner supporting pipe is connected through a connecting piece, and a bolt fixing mode is adopted, so that the outer sleeve is ensured not to slide during feeding, and the length of a second traction rope outside a drilled hole is ensured to be more than or equal to 1 m; the three-dimensional laser detector is ensured to be positioned in the middle of the inner sleeve, when the feeding distance of the inner support pipe is equal to the length of the outer sleeve, the inner support pipe is stopped, the position of the inner support pipe is fixedly supported in a first traction rope and manual support mode, and sliding is prevented in the detection process;
s5: and connecting a lead of the three-dimensional laser detector with a computer, starting to perform goaf three-dimensional laser scanning, and recording detection data in real time until the detection is finished.
The technical scheme of the invention has the following beneficial effects:
in the scheme, aiming at the characteristics of the common drilling type underground dead zone three-dimensional laser scanning equipment, the outer sleeve and the inner supporting pipe are matched for use, the long-distance and arbitrary-angle conveying and recovery of the drilling type underground dead zone three-dimensional laser scanning equipment can be realized, the safety is high, and the safety of the three-dimensional laser scanning equipment can be fully ensured. The related parts of the device are made of light materials, and the device has the advantages of light weight, high strength, low cost and convenient use.
Drawings
FIG. 1 is a schematic structural diagram of an outer sleeve of a conveying device in a drill hole of a goaf three-dimensional laser scanning system;
FIG. 2 is a schematic cross-sectional view taken along line C-C of FIG. 1;
FIG. 3 is a schematic view of an inner supporting tube structure of the conveying device in the hole drilling of the goaf three-dimensional laser scanning system;
FIG. 4 is a schematic cross-sectional view taken along line B-B in FIG. 2;
FIG. 5 is a schematic diagram of the conveying device in the drill hole of the goaf three-dimensional laser scanning system in the field use;
fig. 6 is a schematic sectional view taken along line a-a in fig. 5.
Wherein: 1-a three-dimensional laser detector; 2-outer sleeve; 3-inner supporting tube; 4, drilling; 5-detector wire; 6-outer sleeve top pulley; 7-pulley at the top of the inner supporting pipe; 8-fixing the screw rod; 9-a first traction rope; 10-a second traction rope; 11-outer sleeve tail support bolt; 12-a pulley at the tail part of the inner supporting pipe; 13-outer sleeve sliding rail; 14-a first threaded hole; 15-inner supporting tube sliding groove; 16-a second threaded hole; 17-fastening bolt screw holes.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides an in-hole conveying device of a goaf three-dimensional laser scanning system and a using method thereof.
The device includes outer tube 2, interior pipe 3 that props, clamping screw 8 and haulage rope, as shown in fig. 6, interior pipe 3 that props is arranged in outer tube 2, outer tube 2 inboard sets up outer tube slide rail 13, interior pipe 3 surface that props sets up interior pipe sliding tray 15 that props, interior pipe sliding tray 15 that props is corresponding with outer tube slide rail 13, outer tube 2 and interior top of propping pipe 3 set up outer tube top pulley 6 and interior pipe top pulley 7 that props respectively, outer tube top pulley 6 and interior pipe top pulley 7 that props provide the slip track for the haulage rope, three-dimensional laser detector 1 is fixed including propping in pipe 3 through clamping screw 8.
The outer sleeve is located on the outermost periphery and used for forming a conveying channel and providing protection, as shown in fig. 1 and 2, the outer sleeve 2 is connected through a connecting piece in a multi-section splicing mode, the length of each section is 1-1.5 m, three threaded holes 14 are arranged at the positions, 10-20 mm away from the end portion, of two sides of each section of the outer sleeve, the diameter of each threaded hole is 5-10 mm, 120 degrees are formed between every two adjacent threaded holes, and the threaded holes and the outer sleeve sliding rail are arranged at intervals. The cross section of the outer sleeve 2 is circular, the diameter is determined according to the diameter of a construction drill hole and is generally not less than 80mm, the wall thickness of the outer sleeve 2 is not more than 2mm, and the outer sleeve is made of aluminum alloy materials.
The outer sleeve sliding rails 13 are three, are made of smooth stainless steel bars, have the diameter of 5-10 mm, and are 120 degrees between every two adjacent sliding rails.
The inner supporting pipe is used for supporting the three-dimensional laser scanning equipment, the equipment is sent into a specified dead zone, corresponding sliding grooves are arranged on the inner supporting pipe according to the position and the size of the outer sleeve sliding rail, and the sliding grooves are polished. As shown in figures 3 and 4, the inner supporting pipe 3 is connected through a connecting piece in a multi-section splicing mode, the length of each section is 1-1.2 m, three threaded holes II 16 are respectively arranged at the positions, 10-20 mm away from the end part, of two sides of each section of inner supporting pipe, the diameter of each threaded hole is 5-10 mm, 120 degrees are formed between every two adjacent threaded holes II, and the threaded holes II and the inner supporting pipe sliding grooves are arranged at intervals.
The cross section of the inner supporting tube 3 is circular, the diameter is not less than 60mm, the wall thickness of the inner supporting tube 3 is not more than 2mm, and the inner supporting tube is made of an aluminum alloy material.
Two rows of fastening bolt screw holes 17 are formed in the pipe wall of the inner supporting pipe 3 connected with the three-dimensional laser detector 1, the diameter of each fastening bolt screw hole 17 is 10-20 mm, the fastening bolt screw holes 17 and the inner supporting pipe sliding grooves 15 are arranged at intervals, the adjacent fastening bolt screw holes 17 are 120 degrees, and the fixing screw rods 8 are fixed through the fastening bolt screw holes 17. The distance between the first row of screw holes and the upper end part of the inner supporting pipe is 100-200 mm, and the distance between the two rows of screw holes is 100-200 mm.
As shown in fig. 5, the outer sleeve 2 is provided with an outer sleeve bottom support bolt 11 at the bottom, and the inner support tube 3 is provided with an inner support tube tail pulley 12 at the bottom.
In practical design, the outer sleeve top pulley 6 and the inner supporting tube top pulley 7 adopt small-sized rotating pulleys to provide sliding tracks for the traction rope. The specification of the pulley is 1/2-1-1/2 single wheel, the height of the pulley is 43-58 mm, the thickness of the pulley is 12-17 mm, the depth of a groove of the wheel is 6-10 mm, and the surface of the groove is polished.
The connecting piece is used for connecting and fixing the outer sleeve and the inner supporting pipe of each section, is made of aluminum alloy materials, and is processed into an arc-shaped plate with the length of 30-50 mm according to the shape and the size of the outer sleeve and the inner supporting pipe. The arc length of the connecting piece of the outer sleeve and the inner supporting tube is the same as the arc length between the two sliding rails or the sliding grooves.
The hauling cable is used for providing ascending or descending power, is made of polyamide fibers (chinlon and nylon), has the diameter of 6-10 mm, is provided with a scale every 0.5m, and is determined according to the drilling depth.
In specific application, the method comprises the following steps:
s1: and (3) selecting a proper position on site to carry out construction drilling towards the direction of the goaf, wherein the diameter of the drilled hole is more than or equal to 82mm, and selecting a stable surrounding rock section to carry out construction so as to avoid hole collapse. After the construction is finished, the rock debris in the hole is cleaned in a flushing or high-pressure air mode, so that the wall of the drilled hole is smooth; if the drilling depth is large, the drilling direction is observed and adjusted in real time in the construction process, the drilling deviation is avoided, and the drilling length is accurately recorded in the drilling process.
S2: placing an outer sleeve into a drill hole, installing 3 pulleys in three threaded holes I at the upper end part of a first section of the outer sleeve in a bolt fixing mode, respectively penetrating 3 traction ropes I9 through the 3 pulleys, sending the outer sleeve into the drill hole 4 section by section, connecting each section of the outer sleeve through a connecting piece, and stopping sending the outer sleeve when the sending length of the outer sleeve is equal to the length of the drill hole by adopting the bolt fixing mode, wherein the length of the traction rope I is kept 1-1.5 m outside the hole all the time in the process of sending the outer sleeve into the drill hole; mounting outer sleeve tail supporting bolts in three threaded holes I on the lower end surface of the last section of outer sleeve from the inside of the outer sleeve to the wall of the hole, and fixing the outer sleeve in the drilled hole;
s3: the three-dimensional laser detector 1 is installed and fixed in the first section of the inner supporting tube 3, the three-dimensional laser detector is fixed at the middle part of the inner supporting tube through a screw hole of a fastening bolt, and when the three-dimensional laser detector is fixed, an equipment detection head is ensured to be parallel to a tube opening and protrudes out of the tube opening by 400-800 mm; the detector lead 5 is led out from the inner supporting tube; 3 pulleys are arranged in three threaded holes II 16 at the upper end part of the inner supporting tube, one ends of 3 traction ropes I are respectively fixed at the first row of fastening bolts of the inner supporting tube, 3 traction ropes II 10 are respectively wound around the 3 pulleys at the upper end part of the inner supporting tube, and one end of each traction rope II is fixed at the supporting bolt at the tail part of the outer sleeve;
s4: feeding the inner supporting pipe and the three-dimensional laser detector into the outer sleeve section by section, wherein each section of inner supporting pipe is connected through a connecting piece, and a bolt fixing mode is adopted, so that the outer sleeve is ensured not to slide during feeding, and the length of a second traction rope outside a drilled hole is ensured to be more than or equal to 1 m; the three-dimensional laser detector is ensured to be positioned in the middle of the inner sleeve, the feeding distance is recorded according to the number of the connected inner supporting tubes and the scales on the first traction rope, when the feeding distance of the inner supporting tubes is equal to the length of the outer sleeve, the inner supporting tubes are fixedly supported in a first traction rope and manual support mode, and sliding in the detection process is prevented;
at the moment, when the drill holes are vertically upwards, obliquely upwards or horizontally arranged, the three-dimensional laser scanning equipment upwards detects, and when the drill holes are sent, on one hand, the drill holes are upwards pushed by manpower, on the other hand, the 3 traction ropes provide upwards assistance, and the three-dimensional laser detector is ensured to be positioned in the middle of the inner sleeve; when the drill hole is arranged obliquely downwards or vertically downwards, the three-dimensional laser scanning equipment probes downwards, at the moment, the steps of device installation, equipment fixing and use are the same as those of the device installation, the difference is mainly embodied in the function and the conveying direction of the traction rope, when the drill hole is arranged obliquely downwards or vertically downwards, the main function of the first traction rope is to ensure that the equipment is positioned in the middle of the outer sleeve, and when resistance is met during downward conveying, downward assistance can be provided. The main effect of haulage rope two guarantees the stability that equipment was transferred, when upwards taking out the time emergence and blocking the condition, accessible haulage rope two provides ascending helping hand.
S5: and connecting a lead of the three-dimensional laser detector with a computer, starting to perform goaf three-dimensional laser scanning, and recording detection data in real time until the detection is finished.
After the detection is finished, the equipment lead is separated from the computer, the inner supporting tube is firstly pulled out of the hole section by section, and the connecting piece is dismantled section by section. When the pulling device is pulled out, in order to avoid sudden acceleration and falling, the first traction rope is continuously tensioned, the pulling speed is adjusted, and the device is ensured to be positioned in the middle of the outer sleeve and not to rub against the wall of the outer sleeve. If the situation that the equipment is blocked in the drawing-out process occurs, the outward power assistance can be provided through the second traction rope, and the situation that the equipment cannot be taken out is avoided. After the inner supporting tube and the equipment are taken out, the outer sleeve is taken out section by section, the connecting piece is dismantled section by section, and in the taking-out process, the speed is controlled to avoid accidents caused by sudden dropping.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a conveyer in three-dimensional laser scanning system drilling in collecting space area, a serial communication port, including the outer tube, interior stay pipe, clamping screw and haulage rope, interior stay pipe is arranged in the outer tube, the outer tube inboard sets up the outer tube slide rail, interior stay outside of tubes surface sets up interior stay pipe sliding tray, interior stay pipe sliding tray is corresponding with the outer tube slide rail, the top of outer tube and interior stay pipe sets up outer tube top pulley and interior stay pipe top pulley respectively, outer tube top pulley and interior stay pipe top pulley provide the slip track for the haulage rope, three-dimensional laser detection instrument passes through clamping screw and fixes including in propping the pipe.
2. The conveying device in the drill hole of the goaf three-dimensional laser scanning system is characterized in that the outer sleeve is connected through a connecting piece in a multi-section splicing mode, the length of each section is 1-1.5 m, three threaded holes I are respectively arranged at the positions, 10-20 mm away from the end part, of two sides of each section of the outer sleeve, the distance between every two adjacent threaded holes I is 120 degrees, and the threaded holes I and the outer sleeve sliding rail are arranged at intervals.
3. The conveying device in a drilled hole of a goaf three-dimensional laser scanning system as claimed in claim 1, wherein the cross section of the outer sleeve is circular, the diameter is not less than 80mm, the wall thickness of the outer sleeve is not more than 2mm, and the outer sleeve is made of aluminum alloy material.
4. The conveying device in a drill hole of a three-dimensional laser scanning system of a goaf according to claim 1, characterized in that there are three outer casing slide rails made of smooth stainless steel bars, and the distance between two adjacent slide rails is 120 °.
5. The conveying device in the drill hole of the three-dimensional laser scanning system of the goaf according to the claim 1, characterized in that the inner supporting tubes are connected through connecting pieces in a multi-section splicing mode, the length of each section is 1-1.2 m, three second threaded holes are respectively arranged at the positions 10-20 mm away from the end part of each section of the inner supporting tube, the distance between every two adjacent threaded holes is 120 degrees, and the second threaded holes and the sliding grooves of the inner supporting tubes are arranged at intervals.
6. The conveying device in the drill hole of the three-dimensional laser scanning system of the goaf as claimed in claim 1, wherein the cross section of the inner supporting tube is circular, the diameter is not less than 60mm, the wall thickness of the inner supporting tube is not more than 2mm, and the inner supporting tube is made of aluminum alloy material.
7. The conveying device in a drilled hole of a three-dimensional laser scanning system of a gob according to claim 1, wherein a fastening bolt screw hole is provided on a pipe wall of an inner support pipe connected with the three-dimensional laser detector, the fastening bolt screw hole and the sliding groove of the inner support pipe are arranged at an interval, adjacent fastening bolt screw holes are 120 °, and the fixing screw is fixed by the fastening bolt screw hole.
8. The conveying device in a drilled hole of a three-dimensional laser scanning system of a goaf according to claim 1, characterized in that a supporting bolt at the bottom of the outer sleeve is arranged at the bottom of the outer sleeve, and a pulley at the tail of the inner supporting tube is arranged at the bottom of the inner supporting tube.
9. The conveying device in a drilled hole of a three-dimensional laser scanning system of a goaf according to claim 1, characterized in that the traction rope is provided with a scale every 0.5 m.
10. The method for conveying the device in the drill hole of the three-dimensional laser scanning system of the goaf according to the claim 1, is characterized by comprising the following steps:
s1: selecting a proper position on site to construct a drill hole towards the direction of the goaf, and after the construction is finished, cleaning rock debris in the hole in a flushing or high-pressure air mode to ensure the smoothness of the wall of the drill hole;
s2: placing an outer sleeve into a drill hole, installing 3 pulleys in three threaded holes I at the upper end part of a first section of the outer sleeve in a bolt fixing mode, respectively penetrating 3 traction ropes I through the 3 pulleys, sending the outer sleeve into the drill hole section by section, connecting each section of the outer sleeve through a connecting piece, sending the outer sleeve into the drill hole in a bolt fixing mode by using a bolt fixing mode, ensuring that the length of 1-1.5 m of the traction rope I is always kept outside the drill hole, and stopping sending when the sending length of the outer sleeve is equal to the length of the drill hole; mounting outer sleeve tail supporting bolts in three threaded holes I on the lower end surface of the last section of outer sleeve from the inside of the outer sleeve to the wall of the hole, and fixing the outer sleeve in the drilled hole;
s3: the three-dimensional laser detector is fixedly installed in the first section of the inner supporting tube, the three-dimensional laser detector is fixed at the middle part of the inner supporting tube through a fastening bolt screw hole by adopting a fastening bolt, and a tail conducting wire of the three-dimensional laser detector is led out from the inner supporting tube; 3 pulleys are arranged in three threaded holes II in the upper end part of the inner supporting tube, one ends of 3 traction ropes I are respectively fixed at the first row of fastening bolts of the inner supporting tube, the 3 traction ropes II are respectively wound around the 3 pulleys in the upper end part of the inner supporting tube, and one ends of the traction ropes II are fixed at the supporting bolts at the tail part of the outer sleeve;
s4: feeding the inner supporting pipes into the outer sleeve section by section, wherein each section of inner supporting pipe is connected through a connecting piece, and a bolt fixing mode is adopted, so that the outer sleeve is ensured not to slide during feeding, and the length of a second traction rope outside a drilled hole is ensured to be more than or equal to 1 m; the three-dimensional laser detector is ensured to be positioned in the middle of the inner sleeve, when the feeding distance of the inner support pipe is equal to the length of the outer sleeve, the inner support pipe is stopped, the position of the inner support pipe is fixedly supported in a first traction rope and manual support mode, and sliding is prevented in the detection process;
s5: and connecting a lead of the three-dimensional laser detector with a computer, starting to perform goaf three-dimensional laser scanning, and recording detection data in real time until the detection is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111502852.7A CN113982513B (en) | 2021-12-10 | 2021-12-10 | Conveying device in drill hole of three-dimensional laser scanning system in goaf and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111502852.7A CN113982513B (en) | 2021-12-10 | 2021-12-10 | Conveying device in drill hole of three-dimensional laser scanning system in goaf and using method |
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| Publication Number | Publication Date |
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| CN113982513A CN113982513A (en) | 2022-01-28 |
| CN113982513B true CN113982513B (en) | 2022-04-19 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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