CN116517492B - Coring device while drilling for coal beds with different depths and use method - Google Patents
Coring device while drilling for coal beds with different depths and use method Download PDFInfo
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- CN116517492B CN116517492B CN202310806884.9A CN202310806884A CN116517492B CN 116517492 B CN116517492 B CN 116517492B CN 202310806884 A CN202310806884 A CN 202310806884A CN 116517492 B CN116517492 B CN 116517492B
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- 238000005553 drilling Methods 0.000 title claims abstract description 76
- 239000003245 coal Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 89
- 230000007306 turnover Effects 0.000 claims abstract description 11
- 238000005070 sampling Methods 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 11
- 238000000151 deposition Methods 0.000 description 8
- 239000002131 composite material Substances 0.000 description 6
- 244000309464 bull Species 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
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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
- E21B10/00—Drill bits
- E21B10/02—Core bits
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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
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/10—Formed core retaining or severing means
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention provides a coring device while drilling for coal beds with different depths and a use method, and belongs to the technical field of mining machinery equipment. According to the invention, coring while drilling is realized through the coring body in the coring bit, meanwhile, the core tube and the turnover/coring structure in the coring bit are stored conveniently and quickly, so that the step of changing the coring of coal beds with different depths is realized, the purpose of coring and core storage for a plurality of times by one rod is achieved, rod withdrawing links with different depths in the middle are reduced, and the working efficiency is improved; the convenient assembling, disassembling and replacing of the drill end are realized through the mounting handle and the clamping groove body.
Description
Technical Field
The invention relates to the technical field of mining machinery equipment, in particular to a coring device while drilling for coal beds with different depths and a use method.
Background
Coal is a very important energy source and is also an important raw material for the metallurgical and chemical industries. It is one of three major fossil energy sources, is an important energy component, and occupies a high specific gravity in an energy consumption structure. Coal is a major industry, or a minor industry, for the modern industry; the energy industry, the metallurgical industry, the chemical industry, the mechanical industry, the light textile industry, the food industry and the transportation industry play an important role, and various industrial departments consume a certain amount of coal to a certain extent.
Coal mining is a laborious task and is currently taking great effort to improve the working conditions. Because the coal resources are buried in different depths, the mining mode generally comprises mine mining and surface mining, the mining is mainly mine mining, the mining operation environment is deeper, a certain danger exists, the deep coal mining has the characteristics of high stress, high gas pressure, high gas content and the like, the potential risk of coal and gas outburst exists in the mining process, and the problem that the occurrence of coal mine accidents is serious in the coal mine safety production is effectively prevented, so that a large amount of coring operations are required to be carried out simultaneously in daily production for carrying out detection works in the aspects of coal and gas outburst prediction, gas extraction effect inspection, gas extraction standard reaching judgment and the like.
The patent application with the application number of CN200420030614.6 provides a coring tool while drilling, adopts the scheme that an inner core assembly, an inner barrel fisher assembly and a coring bit are sequentially arranged in an outer barrel assembly at the lower end of a drill string from bottom to top, solves the problem that a drilling tool needs to be taken down once every time a core is taken, overcomes the defect that a common coring tool can be fully drilled only by taking out the coring tool and replacing the bit when intermittent coring is performed, and can be widely used for drilling and coring operations because the coring tool while drilling simplifies the technological process, saves the drilling time and can reduce the drilling cost.
The patent application with the application number of CN202211097760.X provides a composite drilling bit and a coring method while drilling, comprising a bit matrix and a plurality of blades arranged on the bit matrix, wherein a chip removal channel is formed between two adjacent blades, one or more inner ends of the blades are provided with composite coring teeth, and the inner ends of the blades jointly form a composite coring hole. The composite drilling bit can realize coring of rock samples while composite drilling, coring can be realized without replacing the bit in the composite drilling process, coring is simpler, the purpose of coring while drilling is achieved, and the problem that the drilling period is influenced by replacing the bit is avoided.
Although this technique achieves coring while drilling to some extent, improving the work efficiency, there are some problems. Firstly, when coring is carried out at the same position and different depths, a plurality of rod withdrawal coring operations are needed, the operation flows of 'drilling, coring, rod withdrawal, drilling, coring, rod withdrawal and … rod withdrawal' are complex, and the working efficiency is low; second, the existing drill bit requires replacement of the entire drill bit when damaged, and is costly.
In view of the foregoing, improvements in existing coal seam gas content measurement coring while drilling devices are needed.
Disclosure of Invention
In order to comprehensively solve the problems, particularly to overcome the defects in the prior art, the invention provides a coring device while drilling for coal beds with different depths and a use method thereof, which can comprehensively solve the problems.
In order to achieve the above purpose, the invention adopts the following technical means:
the invention provides a coring device while drilling for coal beds with different depths, which comprises a positioning rail, wherein one side of the positioning rail is connected with a guide driving motor, the output end of the guide driving motor is connected with a positioning screw rod, the upper part of the positioning screw rod is sleeved with a guide plate, the two sides in front of the positioning rail are connected with connecting frames, the bottom of each connecting frame is connected with a positioning ring, the bottom of each guide plate is connected with a drilling driving motor, the output end of each drilling driving motor is connected with a drill rod, the drill rods penetrate through the positioning rings, the front of each drill rod is connected with a core storage pipe, and the front of each core storage pipe is connected with a coring bit;
the coring bit comprises a first coring body, the outside in front of the first coring body is detachably connected with a plurality of groups of circumferentially distributed drilling ends, a turnover motor is connected in the first coring body, the output end of the turnover motor is connected with a second coring body through a rotating rod, a coring groove is formed in the second coring body, the two sides of the second coring body are connected with coring motors, the output end of each coring motor is connected with a coring screw rod, the coring screw rods are connected with a coring plate through coring sliding blocks, and the coring motors drive the coring plates to be movably spliced with the coring grooves through the coring screw rods.
The invention further preferably comprises the following steps: the drill rod comprises a drill body, and a first threaded connecting groove and a pressing groove are formed in the side, connected with the core storage pipe, of the drill body.
The invention further preferably comprises the following steps: the core tube is stored including storing the core, it has the core lid to store core upper portion joint, it has offered to press the rail to store the inside bottom side of core, it has the core driving motor to press the rail internal connection, it is connected with the core area of storing to store the core driving motor transmission, it bears the sample core to store the core area.
The invention further preferably comprises the following steps: one side of the storage core body is connected with a first threaded interface, and the other side of the storage core body is provided with a second threaded connecting groove.
The invention further preferably comprises the following steps: four groups of spring clamping seats are symmetrically arranged on two sides of the core storage cover, the core storage cover is connected with the core storage body in a clamping mode through the spring clamping seats, and a pull rod is embedded in the upper portion of the core storage cover.
The invention further preferably comprises the following steps: the core storage belt is provided with a plurality of groups of telescopic spring isolation plates which are uniformly distributed, and two sides of the core storage belt are provided with core storage plates connected with the inner wall of the core storage body.
The invention further preferably comprises the following steps: one side of the first coring body is connected with a second threaded interface, the other side of the first coring body is connected with a front end, a plurality of groups of circumferentially distributed mounting grooves are formed in the front end, and two groups of clamping groove holes are formed in the mounting grooves.
The invention further preferably comprises the following steps: the drilling end is characterized in that the upper part of the drilling end is connected with a plurality of groups of evenly distributed drilling cutters, the bottom and the side face of the drilling end are respectively connected with a clamping body, clamping groove bodies are nested on two sides of the clamping bodies, the upper part of the drilling end is inserted with a mounting handle, and the bottom of the mounting handle is connected with the clamping groove bodies through a pull rope.
The invention further preferably comprises the following steps: the inner side of the drill end is connected with a guide ring, the guide ring is in sliding connection with the pull rope, and the clamping groove body is connected with the clamping body through a reset spring.
A method of using a coring while drilling device for coal seams of different depths, the method comprising the steps of:
step 1: and (3) movement adjustment: moving the device to a position to be measured under a mine, and adjusting the cutting angle between the drill rod and the coal rock mass, wherein the cutting angle is 15 degrees;
step 2: installing a core storage pipe: the core storage pipe is arranged in front of the drill rod through threaded rotary connection;
step 3: installing a coring bit: the core bit is arranged in front of the core storage tube through threaded rotary connection;
step 4: switching a drilling mode: the coring motor is started in the forward direction, and the coring motor drives the coring plate to seal the port of the coring groove through the coring screw rod, so that the coring groove is in a sealed state;
step 5: drilling: the drill rod rotates, the drill rod drives the core storage pipe and the coring bit to rotate, and meanwhile, the device moves forwards along the positioning rail;
step 6: switching the coring mode: after reaching the set depth, the coring mode is switched, the coring motor is reversely started, and the coring motor drives the coring plate to be far away from the port of the coring groove through the coring screw rod, so that the coring plate and the coring groove form a coring barrel;
step 7: coring: the coring bit rotates fast, the sampling core gets into in the coring barrel that forms in step 6, coring operation, after coring is accomplished, the upset motor passes through the bull stick and drives the second coring body and rotate 180, make the port of coring barrel correspond with deposit the core, coring motor forward start once more, coring motor drives the coring board through the coring lead screw and promotes the sampling core and get into deposit on the core area in depositing the core, deposit the core area and drive the sampling core and get into the inside of depositing the core and store under the drive of depositing core driving motor, the upset motor passes through the bull stick and drives the second coring body again and rotate 180, repeat operation step 5-step 7, can realize the swift core storage of different degree of depth coal seam.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, coring while drilling is realized through the coring body in the coring bit, meanwhile, the multi-core convenient storage is realized through the core tube and the turnover/coring structure in the coring bit, so that the step of changing the coring of coal beds with different depths is realized, the purpose of coring and core storage for a plurality of times by one rod is achieved, the rod withdrawing links with different depths in the middle are reduced, and the working efficiency is improved.
2. The coring bit is detachably connected with a plurality of groups of circumferentially distributed bit ends, and when one bit end is damaged, only the bit end corresponding to the damage is needed to be replaced, the whole bit replacement is not needed, and the use cost of the bit is effectively reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the construction of the drill pipe of the present invention;
FIG. 4 is an assembly view of the drill rod of the present invention;
FIG. 5 is a schematic view of the structure of the coring bit of the present invention;
FIG. 6 is an assembly view of the coring bit of the present invention;
FIG. 7 is a front view of the assembly of the coring bit of the present invention;
FIG. 8 is a schematic view of the structure of the drill end of the present invention;
FIG. 9 is a partial cross-sectional view of a drill end of the present invention;
FIG. 10 is a schematic view of the internal structure of the drill end of the present invention;
FIG. 11 is an enlarged view of a portion of FIG. 10 at A;
FIG. 12 is an assembly view of a second coring body of the present invention;
FIG. 13 is a schematic view of the structure of the memory core tube of the present invention;
FIG. 14 is a front view of the memory core tube of the present invention;
FIG. 15 is an assembly view of a memory core tube of the present invention;
in the figure:
1. a guide driving motor; 2. positioning a screw rod; 3. a positioning rail; 4. a guide plate; 5. a connecting frame; 6. a positioning ring; 7. a drill drive motor; 8. a drill rod; 9. core tube storage; 10. coring bit; 81. a drill body; 82. a first threaded connection groove; 83. pressing a groove; 91. storing the core body; 92. a core storage cover; 93. a core storage belt; 94. a sampling core; 911. a first threaded interface; 912. a second threaded connection groove; 913. pressing a rail; 921. a spring clamping seat; 922. a pull rod; 931. a core storage driving motor; 932. a telescoping spring spacer; 933. a core plate; 101. a first coring body; 1011. a second threaded interface; 1012. a front end; 1013. a mounting groove; 1014. a slot hole; 102. drilling an end; 1021. a drill; 1022. a card body; 1023. a clamping groove body; 1024. a mounting handle; 1025. a guide ring; 1026. a pull rope; 1027. a return spring; 103. a second coring body; 1031. a coring groove; 1032. a turnover motor; 1033. a coring motor; 1034. coring a screw rod; 1035. coring a sliding block; 1036. taking the core plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 6 and fig. 9 to 15, in one embodiment of the present invention, a coring device while drilling for coal seams with different depths includes a positioning rail 3, a drill rod 8, a core storage tube 9 and a coring bit 10 are sequentially disposed at the lower part of the positioning rail 3, a sampling core 94 is disposed in the core storage tube 9, the coring bit 10 includes a first coring body 101, a drilling end 102 and a second coring body 103, the drilling end 102 is fixedly mounted on the first coring body 101 through a clamping groove body 1023 mounted at the bottom of the drilling end 102, coring motors 1033 are disposed at two sides of the second coring body 103, an output end of the coring motor 1033 is connected with a coring screw 1034, a coring slider 1035 is sleeved on the coring screw 1034, and a coring plate 6 is fixedly mounted on the coring slider 1035; a guide driving motor 1 is arranged on one side of the positioning rail 3, the output end of the guide driving motor 1 is connected with a positioning screw rod 2, a guide plate 4 is sleeved on the upper part of the positioning screw rod 2, connecting frames 5 are arranged on two sides in front of the positioning rail 3, a positioning ring 6 is arranged at the bottom of the connecting frames 5, and a drill rod 8 penetrates through the positioning ring 6; the bottom of the guide plate 4 is provided with a drilling driving motor 7, the output end of the drilling driving motor 7 is connected with a drill rod 8, the front of the drill rod 8 is in threaded connection with a core storage pipe 9, and the front of the core storage pipe 9 is in threaded connection with a coring bit 10; the drill rod 8 comprises a drill body 81, a first threaded connecting groove 82 and a pressing groove 83, wherein the first threaded connecting groove 82 and the pressing groove 83 are formed in one side, connected with the core storage pipe 9, of the drill body 81.
In this example, the drilling mode is switched, the coring motor 1033 is started forward, the coring motor 1033 drives the coring screw 1034 to rotate, the coring screw 1034 drives the coring slider 1035 to move outwards, and the coring slider 1035 drives the coring plate 1036 to move to the port of the second coring body 103, so that the drilling head is formed. The drilling operation is started, the drilling driving motor 7 drives the drill rod 8 to rotate, the drill rod 8 drives the core storage tube 9 to rotate, the core storage tube 9 drives the core drill bit 10 to rotate, and meanwhile the guiding driving motor 1 starts to drive the device to move forwards along the positioning rail 3.
As shown in fig. 2 to 5 and fig. 8 to 15, in one embodiment of the present invention, specifically, the core storage tube 9 includes a core storage body 91, a core storage cover 92, a core storage belt 93 and a sampling core 94, the upper portion of the core storage body 91 is clamped with the core storage cover 92, the bottom side inside the core storage body 91 is provided with the core storage belt 93, and one surface of the core storage belt 93 abuts against the end surface of the sampling core 94; a first threaded interface 911 is arranged on one side of the storage core 91, a second threaded connecting groove 912 is arranged on the other side of the storage core 91, a pressing rail 913 is arranged on the bottom side of the storage core 91, four groups of spring clamping seats 921 are symmetrically arranged on two sides of the storage core cover 92, the pull rod 922 is embedded in the upper portion of the core storage cover 92, a core storage driving motor 931 is arranged on one side of the core storage belt 93, a telescopic spring isolation plate 932 is mounted on the upper portion of the core storage belt 93, and core storage plates 933 are arranged on two sides of the core storage belt 93.
In this embodiment, when the set depth is reached, the coring mode is switched, the coring motor 1033 is started reversely, the coring plate 1036 moves inward to the innermost end of the second coring body 103, so that the coring plate 1036 and the inside of the second coring body 103 form a coring barrel, then the coring bit 10 rotates rapidly, the sampling core 94 enters the coring bit 10, then the second coring body 103 rotates 180 °, the coring plate 1036 rotates to the port of the second coring body 103, the coring motor 1033 is started, the coring plate 1036 moves inward to the innermost end of the second coring body 103 and pushes the sampling core 94 into the core storage tube 9 for storage, and the above operations are repeated, so that rapid coring storage of coal seams with different depths is realized.
As shown in fig. 4 to 12, in one embodiment of the present invention, specifically, a second threaded interface 1011 is provided on one side of the first coring body 101, a front end 1012 is provided on the top of the first coring body 101, and mounting slots 1013 are uniformly provided on the front end 1012, and two sets of clip slots 1014 are provided in each set of mounting slots 1013; the upper part of the drilling end 102 is provided with a drilling tool 1021, the bottom and the side surfaces of the drilling end 102 are respectively provided with a group of clamping bodies 1022, clamping groove bodies 1023 are nested at two sides of the clamping bodies 1022, the upper part of the drilling end 102 is inserted and connected with a mounting handle 1024, the bottom of the mounting handle 1024 is connected with a pull rope 1026, the inner side of the pull rope 1026 is provided with a guide ring 1025, the front part of the pull rope 1026 penetrates through the clamping bodies 1022 to be connected with the clamping groove bodies 1023, and the clamping groove bodies 1023 are connected with the clamping bodies 1022 through reset springs 1027; the second coring body 103 is internally provided with a coring groove 1031, a turnover motor 1032 is installed at the middle position of one side of the second coring body 103, and the output end of the turnover motor 1032 is connected with the second coring body 103 through a rotating rod.
Principle of operation
A method of using a coring while drilling device for coal seams of different depths, the coring method comprising the steps of:
step 1: and (3) movement adjustment: moving the device to a position to be measured under a mine, and adjusting the cutting angle between the drill rod 8 and the coal rock mass, wherein the cutting angle is 15 degrees;
step 2: installing a core storage pipe 9: the core storage pipe 9 is arranged in front of the drill rod 8 through threaded rotary connection;
step 3: installing the coring bit 10: the core drill bit 10 is arranged in front of the core storage tube 9 through a threaded rotary connection;
step 4: switching a drilling mode: the coring motor 1033 is started in the forward direction, and the coring motor 1033 drives the coring plate 1036 to seal the port of the coring groove 1031 through the coring screw 1034, so that the coring groove 1031 is in a sealed state;
step 5: drilling: the drill rod 8 rotates, the drill rod 8 drives the core storage tube 9 and the coring bit 10 to rotate, and the device moves forwards along the positioning rail 3;
step 6: switching the coring mode: after reaching the set depth, the coring mode is switched, the coring motor 1033 is reversely started, and the coring motor 1033 drives the coring plate 1036 to be far away from the port of the coring groove 1031 through the coring screw 1034, so that the coring plate 1036 and the coring groove 1031 form a coring barrel;
step 7: coring: the coring bit 10 rotates fast, the sampling core 94 gets into the coring barrel that forms in step 6, coring operation, after coring is accomplished, flip motor 1032 drives the second coring body 103 through the bull stick and rotates 180 for the port of coring barrel corresponds with depositing core 91, coring motor 1033 forward start again, coring motor 1033 drives through coring lead screw 1034 and gets core 1036 and promote the sampling core 94 and get into the depositing on core area 93 in depositing core 91, deposit core area 93 and drive under depositing core driving motor 931 and drive sampling core 94 and get into the inside of depositing core 91 and store, flip motor 1032 drives the second coring body 103 through the bull stick again and rotates 180, repeated operation step 5-step 7 can realize the swift coring storage of different degree of depth coal seam.
When the drilling end 102 is damaged, a user pulls the mounting handle 1024 by hand, the pull rope 1026 connected to the bottom of the mounting handle 1024 pulls the clamping groove body 1023 to move out of the clamping groove hole 1014, so that the damaged drilling end 102 can be conveniently detached from the mounting groove 1013, the clamping body 1022 is inserted into the clamping groove hole 1014 after the drilling end 102 is replaced, the mounting handle 1024 is released by hand, the clamping groove body 1023 is inserted into the clamping groove hole 1014 under the action of the reset spring 1027, and the drilling end 102 is conveniently mounted on the front end 1012.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a different degree of depth coal seam coring device while drilling which characterized in that: the novel drilling device comprises a positioning rail (3), wherein one side of the positioning rail (3) is connected with a guide driving motor (1), the output end of the guide driving motor (1) is connected with a positioning screw rod (2), guide plates (4) are sleeved on the upper parts of the positioning screw rod (2), connecting frames (5) are connected to the two sides in front of the positioning rail (3), positioning rings (6) are connected to the bottoms of the connecting frames (5), drilling driving motors (7) are connected to the bottoms of the guide plates (4), drill rods (8) are connected to the output ends of the drilling driving motors (7), the drill rods (8) penetrate through the positioning rings (6), core storage tubes (9) are connected to the front of the drill rods (8), and coring drill bits (10) are connected to the front of the core storage tubes (9).
The core storage pipe (9) comprises a core storage body (91), a core storage cover (92) is clamped at the upper part of the core storage body (91), a pressing rail (913) is arranged at the bottom side inside the core storage body (91), a core storage driving motor (931) is connected in the pressing rail (913), a core storage belt (93) is connected with the core storage driving motor (931) in a transmission mode, and the core storage belt (93) bears a sampling core (94);
the core bit (10) comprises a first core taking body (101), a plurality of groups of circumferentially distributed drill ends (102) are detachably connected to the front outer side of the first core taking body (101), a turnover motor (1032) is connected to the first core taking body (101), an output end of the turnover motor (1032) is connected with a second core taking body (103) through a rotating rod, a core taking groove (1031) is formed in the second core taking body (103), core taking motors (1033) are connected to two sides of the second core taking body (103), core taking lead screws (1034) are connected to the output ends of the core taking motors (1033), core taking plates (1036) are connected to the core taking lead screws (1034) through core taking sliding blocks (1035), and the core taking lead screws (1036) are driven to be movably connected with the core taking plates (1031) through the core taking lead screws (1034).
2. The coring while drilling device for coal seams with different depths according to claim 1, wherein the drill rod (8) comprises a drill body (81), and a first threaded connection groove (82) and a pressing groove (83) are formed on the connecting side of the drill body (81) and the core storage pipe (9).
3. The coring while drilling device for coal seams with different depths according to claim 1, wherein one side of the core body (91) is connected with a first threaded interface (911), and a second threaded connection groove (912) is formed on the other side of the core body (91).
4. The coring while drilling device for coal seams with different depths according to claim 1, wherein four groups of spring clamping seats (921) are symmetrically arranged on two sides of the core storage cover (92), the core storage cover (92) is clamped with the core storage body (91) through the spring clamping seats (921), and a pull rod (922) is embedded in the upper portion of the core storage cover (92).
5. The coring while drilling device for coal seams with different depths according to claim 1, wherein a plurality of groups of telescopic spring isolation plates (932) which are uniformly distributed are installed on the core storage belt (93), and core storage plates (933) connected with the inner wall of the core storage body (91) are arranged on two sides of the core storage belt (93).
6. The coring while drilling device for coal seams with different depths according to claim 1, wherein one side of the first coring body (101) is connected with a second threaded interface (1011), the other side of the first coring body (101) is connected with a front end (1012), a plurality of groups of circumferentially distributed mounting grooves (1013) are formed in the front end (1012), and two groups of clamping groove holes (1014) are formed in the mounting grooves (1013).
7. The coring device while drilling for coal seams with different depths according to claim 1, wherein a plurality of groups of evenly distributed drilling cutters (1021) are connected to the upper portion of the drilling end (102), clamping bodies (1022) are respectively connected to the bottom and the side surfaces of the drilling end (102), clamping groove bodies (1023) are nested on two sides of the clamping bodies (1022), a mounting handle (1024) is inserted to the upper portion of the drilling end (102), and the bottom of the mounting handle (1024) is connected with the clamping groove bodies (1023) through a pull rope (1026).
8. The coring while drilling device for coal seams of different depths according to claim 7, wherein a guide ring (1025) is connected to the inner side of the drill end (102), the guide ring (1025) is slidably connected to the pull rope (1026), and the clamping groove body (1023) is connected to the clamping body (1022) through a return spring (1027).
9. A method of using the different depth coal seam coring while drilling apparatus of claim 1, wherein the method comprises the steps of:
step 1: and (3) movement adjustment: moving the device to a position to be measured under a mine, and adjusting the cutting angle between the drill rod (8) and the coal rock mass, wherein the cutting angle is 15 degrees;
step 2: installing a core storage pipe (9): the core storage pipe (9) is arranged in front of the drill rod (8) through threaded rotary connection;
step 3: installing a coring bit (10): the core drill bit (10) is arranged in front of the core storage tube (9) through threaded rotary connection;
step 4: switching a drilling mode: the coring motor (1033) is started forward, and the coring motor (1033) drives the coring plate (1036) to seal the port of the coring groove (1031) through the coring screw rod (1034), so that the coring groove (1031) is in a sealed state;
step 5: drilling: the drill rod (8) rotates, the drill rod (8) drives the core storage tube (9) and the core drill bit (10) to rotate, and meanwhile, the device moves forwards along the positioning rail (3);
step 6: switching the coring mode: after reaching the set depth, the coring mode is switched, the coring motor (1033) is reversely started, and the coring motor (1033) drives the coring plate (1036) to be far away from the port of the coring groove (1031) through the coring screw rod (1034), so that the coring plate (1036) and the coring groove (1031) form a coring barrel;
step 7: coring: the coring bit (10) rotates fast, the sampling core (94) enters the coring barrel formed in the step (6) to carry out coring operation, after coring is completed, the turnover motor (1032) drives the second coring body (103) to rotate 180 degrees through the rotating rod, the port of the coring barrel corresponds to the core storage body (91), the coring motor (1033) starts forward again, the coring motor (1033) drives the coring plate (1036) to push the sampling core (94) to enter the core storage belt (93) in the core storage body (91) through the coring screw rod (1034), the core storage belt (93) drives the sampling core (94) to enter the core storage body (91) to store under the driving of the core storage driving motor (931), the turnover motor (1032) drives the second coring body (103) to rotate 180 degrees again through the rotating rod, and the operation steps 5-7 are repeated, so that coal seam coring at different depths can be achieved.
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| CN111577183A (en) * | 2020-04-23 | 2020-08-25 | 江海东 | A coring device for geological exploration engineering |
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| CN115949361A (en) * | 2023-03-14 | 2023-04-11 | 中国矿业大学 | Coal bed gas content measurement coring-while-drilling device and coring method |
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| US6736224B2 (en) * | 2001-12-06 | 2004-05-18 | Corion Diamond Products Ltd. | Drilling system and method suitable for coring and other purposes |
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| US4281725A (en) * | 1979-09-20 | 1981-08-04 | Longyear Company | Knuckle joint spearhead core drilling apparatus |
| JP2021130923A (en) * | 2020-02-18 | 2021-09-09 | Ｍｍｃリョウテック株式会社 | Core collection bit |
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