CN111550208A - Continuous guide pipe type gallery coring equipment - Google Patents
Continuous guide pipe type gallery coring equipment Download PDFInfo
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- CN111550208A CN111550208A CN202010346394.1A CN202010346394A CN111550208A CN 111550208 A CN111550208 A CN 111550208A CN 202010346394 A CN202010346394 A CN 202010346394A CN 111550208 A CN111550208 A CN 111550208A
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- coring
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- 238000002347 injection Methods 0.000 claims abstract description 27
- 239000007924 injection Substances 0.000 claims abstract description 27
- 238000005553 drilling Methods 0.000 claims abstract description 26
- 238000012546 transfer Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims description 41
- 239000002131 composite material Substances 0.000 claims description 16
- 230000002457 bidirectional effect Effects 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 2
- 230000007723 transport mechanism Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000003245 coal Substances 0.000 description 21
- 238000007789 sealing Methods 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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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
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
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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
- E21B25/08—Coating, freezing, consolidating cores; Recovering uncontaminated cores or cores at formation pressure
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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)
- Earth Drilling (AREA)
Abstract
The invention discloses a continuous conduit type tunnel coring device, which comprises a continuous conduit operation device and a coring device, wherein the continuous conduit operation device comprises a continuous conduit operation device body and a coring device body; the continuous conduit operation equipment comprises a transfer device, wherein the transfer device comprises an injection head and a tunnel drilling machine; the coring device comprises an inner pipe assembly and an outer pipe assembly, the outer pipe assembly is connected with the tunnel drilling machine through a drill rod, the inner pipe assembly is connected with the continuous guide pipe, the injection head is used for lowering/lifting the continuous guide pipe, and the inner pipe assembly is connected with the outer pipe assembly in a clamping manner. The core taking device has the advantages of simple structure and good operation performance, can prevent the core taking barrel from rotating in the core taking process, keeps the core pure, and is easy to separate the inner pipe assembly from the outer pipe assembly.
Description
Technical Field
The invention relates to the field of coal mine tunnel coring operation equipment, in particular to continuous conduit type tunnel coring equipment.
Background
China is a large country for coal production and a large country for coal consumption, and coal is an important basic energy and raw material in China. The coal bed gas content and the coal bed gas pressure are main indexes for predicting and inspecting regional effect of outburst danger regions of outburst coal beds, the coal bed gas content is generally measured by methods such as ground coal bed gas content measurement, geological exploration gas content measurement, drilling and coring of underground coal beds of mines and the like, and due to differences of coal bed gas content test conditions, test methods and the like, the coal bed gas content test results are often large in difference and low in precision, estimation loss generally exists, and the guiding significance for coal mining is limited.
For the coring of coal bed tunnels, the prior art has a core taking device with a coal bed gas rope, the name of which is CN204646157U, the device uses a rope to lift/lower a corer, compressed air needs to be introduced into the core taking device to drive the core taking device to act, while the name of the core taking device with a CN107905752A, the device also uses a rope to lift/lower the corer, meanwhile, the core taking device needs to drive the core taking device to act by water pressure,
in order to further realize pressure-maintaining coring of the coal bed, a coal sample sampler with the publication number of CN201811862U is provided, which performs pressure-maintaining coring of samples by means of a viscous liquid and a vacuum device, wherein fluid media exist in the devices, certain pollution is caused to the coal bed core, the measurement of parameters such as water content and the like is influenced,
still there is application number CN201410739874.9 at present, the name is airtight coring device of ground well drilling coal bed gas, the test of stratum gas content, and the device relies on sample self pushing effect to open and starts the sealed ball valve of cutting the heart, and the structure is comparatively complicated, need change different accessories to different coal beds and realize the cutting, and the operation is difficult, and work efficiency is lower.
The coring device is generally composed of an inner pipe assembly and an outer pipe assembly, a gap exists between the inner pipe assembly and the outer pipe assembly, so that the risk of gas leakage is high, at present, a blowout prevention box arranged at the top end of a drill rod is often used for preventing gas leakage, but gas still exists in the drill rod, so that the potential safety hazard exists in the coring operation,
the clearance between the inner tube assembly and the outer tube assembly can also cause the coring barrel to easily rotate along with the coring outer barrel, when the external disturbance is large, the coring component has a large error with the real condition,
in order to reduce errors caused by rotation, a single-action device is usually arranged between an outer pipe assembly and an inner pipe assembly of the currently used coring device to reduce the rotation of a coring barrel, but the single-action device has an anti-rotation effect, but the coring barrel still rotates to a certain extent, and the measurement errors are difficult to effectively reduce.
Disclosure of Invention
The invention aims to provide a continuous conduit type tunnel coring device which is simple in structure and good in operation performance, can prevent a coring barrel from rotating in the coring process, keeps a core pure, and is easy to separate an inner pipe assembly from an outer pipe assembly.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the invention discloses a continuous conduit type tunnel coring device, which comprises a continuous conduit operation device and a coring device, wherein the continuous conduit operation device comprises a continuous conduit operation device body and a coring device body;
the continuous conduit operation equipment comprises a transfer device, wherein the transfer device comprises an injection head and a tunnel drilling machine;
the coring device comprises an inner pipe assembly and an outer pipe assembly, the outer pipe assembly is connected with the tunnel drilling machine through a drill rod, the inner pipe assembly is connected with the continuous guide pipe, the injection head is used for lowering/lifting the continuous guide pipe, and the inner pipe assembly is connected with the outer pipe assembly in a clamping manner.
Preferably, the inner pipe assembly comprises an inner pipe assembly and a central assembly, a composite bearing set is arranged between the inner pipe assembly and the central assembly,
the composite bearing comprises a base, the base is in a thrust bearing form and is arranged in an inner tube assembly, the inner wall of the base is provided with an annular ball recess, the middle of a positioning tube section is provided with a plurality of ball holes along the circumferential direction, a spherical roller is arranged in the ball holes, the convex part of the spherical roller is matched with the ball recess, and when the positioning tube section of the central assembly is moved upwards by external force, the spherical roller can easily slide out of the ball recess
Preferably, the base comprises a top ring, a middle ring and a bottom ring which are sequentially stacked, a roller is arranged between the top ring and the middle ring, the roller is arranged between the middle ring and the bottom ring, and a ball recess is formed in the inner wall of the middle ring.
Preferably, the center assembly is provided with a first annular convex edge, the inner pipe assembly comprises a second annular convex edge and a sixth pipe section, a thrust bearing is arranged between the top surface of the first annular convex edge and the bottom surface of the second annular convex edge, and a thrust bearing is arranged between the top surface of the sixth pipe section and the bottom surface of the first annular convex edge.
Preferably, the top of the inner pipe assembly is provided with an elastic clamping mechanism, the inner wall of the top of the outer pipe assembly is provided with an elastic clamping chamber, the outer wall of the elastic clamping mechanism is provided with a latch groove, a latch is installed in the latch groove, the bottom of the latch is rotatably connected with the inner wall of the latch groove, a spring is arranged between the top of the latch and the latch groove, and the latch is matched with the elastic clamping chamber.
Preferably, the outer tube assembly includes coring bit, reaming section, and the outer tube assembly bottom is located to coring bit, and the reaming section sets up in outer tube assembly bottom, and reaming section department is on coring bit upper portion, and reaming section periphery is equipped with a plurality of counterbores protruding stupefied along circumference.
Preferably, the center assembly comprises a center rod and a core inner cylinder, the top end of the center rod is connected with the continuous guide pipe, the bottom of the center rod is inserted into the core inner cylinder, the core inner cylinder comprises a compensation pipe section, a positioning pipe section and a storage cylinder which are sequentially and fixedly connected from top to bottom, a fixed pipe section is installed in the positioning pipe section and sleeved on the center rod, a second through hole is formed in the fixed pipe section in the radial direction, a spherical key is installed in the second through hole, and the diameter of the key is larger than the length of the second through hole.
Preferably, the injection head comprises an outer frame, a conveying mechanism, a conveying chain counter and a load sensor are arranged in the outer frame, the two conveying mechanisms are arranged side by side and comprise conveying chains, a conveying chain motor is arranged at the top of each conveying chain, a lower chain wheel is arranged at the bottom of each conveying chain, a clamping block is arranged on each conveying chain, the adjacent parts of the two conveying chains penetrate through a hydraulic clamping mechanism, each hydraulic clamping mechanism comprises two clamping arms, clamping hydraulic cylinders are respectively arranged at the two ends of each clamping arm, the clamping arms are in sliding fit with the conveying chains, a turnover device is arranged at the bottom of the injection head,
the clamping block comprises a clamping base and a clamping claw, the clamping claw is installed on the clamping base, the clamping base is connected with a transmission chain, and a friction bulge is arranged in the clamping claw.
Preferably, transfer device still encircles including the direction, and the direction encircles the top and is equipped with a plurality of guide pulleys along length direction, and the direction encircles the top and is equipped with a plurality of pinch rollers along length direction, and the direction encircles and is equipped with hydraulic assembly between the injection head, and hydraulic assembly includes folding hydraulic stem, and the articulated injection head in folding hydraulic stem bottom, the articulated sliding block in folding hydraulic stem top, sliding block and direction encircle bottom surface sliding fit.
Preferably, the continuous conduit operation equipment further comprises a reel device, the reel device comprises a reel, the reel is mounted on a reel frame, a pipe arrangement device assembly is arranged on the reel frame and used for controlling the sequence of the reels of the continuous conduit, and the reel is driven by a reel motor;
the pipe arranging device assembly comprises a support and a torque limiter, a lifting hydraulic rod is arranged between the support and a winding drum frame, a bidirectional screw rod is arranged on the support, a guide device is arranged on the bidirectional screw rod, a mechanical counter and a rotating system are arranged in the guide device, the rotating system comprises a plurality of conveying wheels, and a lifting oil cylinder is arranged between the guide device and the bidirectional screw rod.
The invention has the beneficial effects that:
1. the anti-rotation device comprises a continuous guide pipe, a composite bearing and the like, wherein the continuous guide pipe is arranged in the tunnel, the composite bearing is arranged in the tunnel, the continuous guide pipe is connected with the continuous guide pipe through a connecting rod, the composite bearing is arranged in the tunnel, and the connecting rod is connected with the continuous guide pipe through a connecting rod.
2. The self-gravity valve is used in the invention, and no extra power is needed to be provided for pressure maintaining and fidelity, so that the purity of the rock core can be kept.
3. The composite bearing is used in the invention, not only can play a role in preventing the rotation of the core inner cylinder, but also can play a role in positioning when the core inner cylinder is lowered or lifted.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of an outer tube assembly;
FIG. 3 is a cross-sectional view of the outer tube assembly;
FIG. 4 is a cross-sectional view of the center assembly mounted to the inner tube assembly prior to coring;
FIG. 5 is a cross-sectional view of the center assembly mounted to the inner tube assembly after coring;
FIG. 6 is a schematic view of the card ejection mechanism of FIG. 5;
FIG. 7 is a schematic view of FIG. 5 at the thrust bearing;
FIG. 8 is a schematic view of the composite bearing set of FIG. 5;
FIG. 9 is a schematic view of the composite bearing set prior to coring;
FIG. 10 is a schematic view of a continuous conduit work apparatus;
FIG. 11 is a side view of the transfer device;
FIG. 12 is a schematic view of a reel assembly;
FIG. 13 is a side view of the reel assembly;
FIG. 14 is a schematic view of a guide arch and injection head;
FIG. 15 is a first schematic view of the injector head;
FIG. 16 is a second schematic view of the injector head;
FIG. 17 is a schematic diagram of a clamping block;
FIG. 18 is a schematic view of a hydraulic clamping mechanism.
In the figure: 1-reel device, 2-transmission device, 3-coring device, 4-drill rod, 51-first pipe section, 511-elastic clamping chamber, 512-suspension ring, 52-second pipe section, 53-third pipe section, 54-fourth pipe section, 55-reaming section, 551-reaming convex edge, 56-coring bit, 561-blade, 562-first slope surface, 563-first through hole, 61-locking nut, 611-first fixing screw, 62-elastic clamping mechanism, 621-latch groove, 622-latch, 623-pin shaft, 624-spring hole, 625-recess, 626-spring, 627-limiting ring, 628-first slope surface, 629-second slope surface, 63-connecting section, 631-first annular convex edge, 632-thrust bearing hole, 633-seal assembly, 64-fifth pipe section, 641-second annular ridge, 65-sixth pipe section, 651-first seal groove, 67-seventh pipe section, 671-composite bearing set, 6711-base, 6712-top ring, 6713-middle ring, 6714-bottom ring, 6715-roller, 6716-ball recess, 672-fourth set screw, 68-core outer barrel, 71-center rod, 711-second set screw, 712-piston, 713-second seal groove, 714-fourth bevel, 715-third seal groove, 81-core inner barrel, 811-compensating pipe section, 8111-third set screw, 812-positioning pipe section, 8121-ball hole, 8122-spherical roller, 8123-third bevel, 813-storage barrel, 8131-antiskid ridge, 814-fixed pipe section, 8141-second through hole, 8142-key, 8143-first key slot, 8144-second key slot, 9-continuous conduit, 1101-reel, 1102-reel rack, 1103-calandria assembly, 1104-bracket, 1105-lifting hydraulic rod, 1106-bidirectional screw, 1107-guiding device, 1108-lifting oil cylinder, 1109-transmission wheel, 1201-guiding arch, 1202-injection head, 1203-drilling machine bracket, 1204-drill rod driving device, 1205-drilling machine hydraulic cylinder, 1206-guide wheel, 1207-pressing wheel, 1208-folding sliding block hydraulic rod, 1209-1210-outer frame, 1211-transmission chain, 1212-transmission chain motor, 1213-lower chain wheel, 1214-holding block, 1215-a clamping base, 1216-a clamping jaw, 1217-a friction projection, 1218-a hydraulic clamping mechanism, 1219-a clamping arm, 1220-a clamping hydraulic cylinder, 1221-a conveyor chain counter, 1222-a load cell, 1223-a blowout preventer, 1224-an arch beam, 1225-a locking tab, 1226-a tensioner, 1301-a mobile base, 1302-a hydraulic leg, 1303-a track.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 18, the invention discloses an excavation coring device with multiple rotation prevention functions by using a continuous conduit 9, which comprises continuous conduit operation equipment and a coring device 3.
The continuous conduit operation equipment comprises a reel device 1 and a transfer device 2, wherein the reel device 1 and the transfer device 2 are both provided with a movable base 1301, the movable bases 1301 are both provided with a crawler 1302,
the reel device 1 is used for accommodating the continuous conduit 9, the reel device 1 comprises a reel 1101 and a reel rack 1102, the reel 1101 is arranged on the reel rack 1102, a pipe discharging device assembly 1103 is arranged on the reel rack 1102, the pipe discharging device assembly 1103 comprises a support 1104 and a moment limiter, the support 1104 is rotatably connected with the reel rack 1102, the support 1104 and the reel rack 1102 are provided with lifting hydraulic rods 1105, a bidirectional screw 1106 is arranged on the support 1104, a guide device 1107 is arranged on the bidirectional screw 1106, a mechanical counter and a rotating system are arranged in the guide device 1107, a lifting oil cylinder 1108 is arranged between the guide device 1107 and the bidirectional screw 1106, the rotating system comprises a plurality of conveying wheels 1109, when the continuous conduit 9 is in a transmission process, the guide device 1107 reciprocates along the bidirectional screw 1106, so that the continuous conduit 9 is orderly accommodated on the reel 1101,
the transfer device 2 comprises a guide arch 1201, an injection head 1202 and a tunnel drilling machine, the tunnel drilling machine comprises a drilling machine support 1203, a drill rod driving device 1204 is arranged on the drilling machine support 1203, the bottom end of the drilling machine support 1203 is hinged with a movable base 1301, a drilling machine hydraulic cylinder 1205 is arranged between the drilling machine support 1203 and the movable base 1301, the top end of the drilling machine support 1203 is hinged with the injection head 1202,
the bottom end of the guide arch 1201 is hinged with the top end of the injection head 1202, a plurality of guide wheels 1206 are arranged at the top of the guide arch 1201 at equal intervals along the length direction, a plurality of pinch rollers 1207 are arranged at the top of the guide arch 1201 at equal intervals along the length direction, the guide wheels 1206 and the pinch rollers 1207 form a supply channel of the continuous conduit 9,
the bottom of the guide arch 1201 is provided with a hydraulic assembly, the hydraulic assembly comprises a folding hydraulic rod 1208, the bottom end of the folding hydraulic rod 1208 is hinged with an injection head 1202, the top end of the folding hydraulic rod 1208 is hinged with a sliding block 1209, the sliding block 1209 is in sliding fit with the bottom surface of the guide arch 1201, the guide arch 1201 comprises a plurality of arch beams 1224, the arch beams 1224 are in hinged fit, locking pieces 1225 are arranged between the adjacent arch beams 1224, the locking pieces 1225 are used for locking the guide arch 1201 when the arch beams 1224 are extended to prevent the guide arch 1201 from collapsing,
the injection head 1202 comprises an outer frame 1210, two conveying mechanisms arranged side by side are installed in the outer frame 1210, a continuous conduit 9 is positioned between the two conveying mechanisms, each conveying mechanism comprises a conveying chain 1211, a conveying chain motor 1212 is arranged at the top of each conveying chain 1211, a lower chain wheel 1213 is arranged at the bottom of each conveying chain 1211, a tensioning device 1226 is arranged on each lower chain wheel 1213, each tensioning device 1226 is used for keeping the conveying chain 1211 in a tensioning state, a clamping block 1214 is installed on each conveying chain 1211, each clamping block 1214 comprises a clamping base 1215 and a clamping claw 1216, a friction bulge 1217 is arranged in each clamping claw 1216, adjacent parts of the two conveying chains 1211 pass through a hydraulic clamping mechanism 1218, each hydraulic clamping mechanism 1218 comprises two clamping arms 1219, clamping hydraulic cylinders 1220 are respectively arranged at two ends of each clamping arm 1219, the clamping arms 1219 are in sliding fit with the conveying chains 1211, a turning device is arranged between the injection head 1202 and a drilling machine support 1203, a, The load sensor 1222 is connected with the coring device 3 through the drill rod 4 by the drill rod drive 1204 of the transmission device 2.
The coring device 3 comprises an outer pipe assembly and an inner pipe assembly, wherein the inner pipe assembly is lifted or lowered through a continuous guide pipe 9 to move, the inner pipe assembly is installed inside the outer pipe assembly, the outer wall of the inner pipe assembly is in clearance fit with the inner wall of the outer pipe assembly, the inner pipe assembly comprises an inner pipe component and a center component, the center component is installed in the inner pipe component, the outer wall of the center component is in sliding fit with the inner wall of the inner pipe component, and the outer pipe assembly is connected with a drill rod 4.
The outer pipe assembly comprises a first pipe section 51, a second pipe section 52, a third pipe section 53, a fourth pipe section 54, a reaming section 55 and a core bit 56 which are coaxially installed and connected from top to bottom, the first pipe section 51, the second pipe section 52, the third pipe section 53 and the fourth pipe section 54 form an outer pipe,
the first pipe section 51 is detachably connected with the second pipe section 52, the bottom end of the first pipe section 51 is a male head, the top end of the second pipe section 52 is a female head, the middle of the first pipe section 51 is provided with two elastic clamping chambers 511, the elastic clamping chambers 511 are arranged along the circumferential direction, the two elastic clamping chambers 511 are arranged oppositely, a first sealing ring is arranged between the first pipe section 51 and the second pipe section 52 and is in sliding fit with the inner pipe assembly, a suspension ring 512 is arranged between the first pipe section 51 and the second pipe section 52, the suspension ring 512 is matched with the bottom edge of the elastic clamping mechanism 62, and when the inner pipe assembly reaches a preset position in the outer pipe assembly, the bottom surface of the elastic clamping mechanism 62 is located on the suspension ring 512 and is used for limiting the descending position of the inner pipe assembly.
The second pipe section 52 is detachably connected with the third pipe section 53, the bottom end of the second pipe section 52 is a male head, the top end of the third pipe section 53 is a female head,
the third pipe section 53 is detachably connected with the fourth pipe section 54, the bottom end of the third pipe section 53 is a male head, the top end of the fourth pipe section 54 is a female head,
the fourth pipe section 54 is detachably connected with the reaming section 55, the bottom end of the fourth pipe section 54 is a male head, the top end of the reaming section 55 is a female head, the outer wall of the reaming section 55 is circumferentially provided with a plurality of reaming convex ridges 551, the reaming convex ridges 551 are arranged at an angle with the vertical direction, an oblique channel is formed between adjacent reaming convex ridges 551,
The inner pipe component comprises a locking nut 61, an elastic clamping mechanism 62, a connecting section 63, a fifth pipe section 64, a sixth pipe section 65, a seventh pipe section 67 and a core outer cylinder 68 which are arranged from top to bottom in sequence,
the locking nut 61 is detachably connected with the elastic clamping mechanism 62, the bottom end of the locking nut 61 is a female head, the top end of the elastic clamping mechanism 62 is a male head, the top surface of the locking nut 61 is provided with a first fixing screw 611, the first fixing screw 611 is arranged along the axial direction, the first fixing screw 611 penetrates through the locking nut 61 and then is inserted into a concave pit on the top surface of the elastic clamping mechanism 62, the first fixing screw 611 is in threaded connection with the locking nut 61,
the elastic clamping mechanism 62 is detachably connected with the connecting section 63, the bottom end of the elastic clamping mechanism 62 is a female head, the top end of the connecting section 63 is a male head, the outer wall of the elastic clamping mechanism 62 is provided with two latch grooves 621, the latch grooves 621 are arranged along the circumferential direction, a latch 622 is arranged in each latch groove 621, a pin 623 is arranged between two side walls of each latch groove 621, the pin 623 penetrates through each latch 622 and is rotatably connected with each latch 622, the pin 623 is arranged at the bottom of each latch groove 621, a spring hole 624 is arranged on the top of each latch 622 facing the elastic clamping mechanism 62, a recess 625 is arranged at the top of each latch groove 621, a spring 626 is arranged between each latch 622 and each latch groove 626, one end of each spring is inserted into each spring hole 624, the other end of each spring 626 is inserted into each recess 625, a limit ring 627 is arranged at the edge of the top of each latch groove 621, the limit ring 627 is sleeved on the periphery of the elastic clamping mechanism 62, and is, the bottom surface of the limiting ring 627 is a first inclined surface 628 facing the latch groove 621, the top surface of the latch 622 facing away from the latch mechanism 62 is a second inclined surface 629, the first inclined surface 628 is adapted to the second inclined surface 629 to control the ejecting distance of the top of the latch 622, the inner wall of the bottom of the latch mechanism 62 is a stepped hole structure,
the middle part of the connecting section 63 is provided with a first annular convex edge 631, the inner wall of the top end of the fifth pipe section 64 is provided with a second annular convex edge 641, the first annular convex edge 631 is positioned in the fifth pipe section 64, the periphery of the first annular convex edge 631 is in clearance fit with the inner wall of the fifth pipe section 64, a thrust bearing 632 is arranged between the top surface of the first annular convex edge 631 and the bottom surface of the second annular convex edge 641, a sealing assembly 633 is arranged between the inner wall of the first annular convex edge 631 and the outer wall of the connecting section 63,
the fifth pipe section 64 is detachably connected with the sixth pipe section 65, the bottom end of the fifth pipe section 64 is a female head, the top end of the sixth pipe section 65 is a male head, a thrust bearing 632 is arranged between the top surface of the sixth pipe section 65 and the bottom surface of the first annular convex edge 631, a first sealing groove 651 is arranged on the periphery of the bottom of the male head of the sixth pipe section 65, an O-shaped sealing ring is arranged in the first sealing groove 651,
the sixth pipe section 65 is detachably connected with the seventh pipe section 67, the bottom end of the sixth pipe section 65 is a male head, the head end of the seventh pipe section 67 is a female head, the inner wall of the head of the seventh pipe section 67 is provided with a composite bearing group 671, the composite bearing group 671 is fixed in the seventh pipe section 67 through a fourth fixing screw 672,
The central component comprises a central rod 71 and a core inner cylinder 81, the bottom of the central rod 71 is inserted into the core inner cylinder 81, the central rod 71 is in sliding fit with the core inner cylinder 81, the core outer cylinder 68 and the core inner cylinder 81 form a core cylinder,
the top of the card ejecting mechanism 62 is provided with a second fixing screw 711, the second fixing screw 711 is arranged along the radial direction, the second fixing screw 711 penetrates through the top of the card ejecting mechanism 62 and is inserted into the central rod 71,
the core inner cylinder 81 comprises a compensation pipe section 811, a positioning pipe section 812 and a storage cylinder 813 which are sequentially installed from top to bottom, the compensation pipe section 811 is detachably connected with the positioning pipe section 812, the bottom end of the compensation pipe section 811 is a male head, the top end of the positioning pipe section 812 is a female head, a third fixing screw 8111 penetrates through the positioning pipe section 812 and then is screwed into the compensation pipe section 811, the compensation pipe section 811 is in sliding fit with the central rod 71, the positioning pipe section 812 is detachably connected with the storage cylinder 813, the bottom end of the positioning pipe section 812 is a male head, the top end of the storage cylinder 813 is a female head, a gap exists between the inner wall of,
the composite bearing set 671 comprises a base 6711, the base 6711 is in the form of a thrust bearing, an annular ball recess 6716 is formed in the inner wall of the base 6711, a plurality of ball holes 8121 are formed in the middle of the positioning pipe section 812 along the circumferential direction, the spherical roller 8122 is installed in the ball holes 8121, the protruding part of the spherical roller 8122 can slide in the ball recess 6716, the depth of the ball recess 6716 is small, when the positioning pipe section 812 is moved upwards by external force, the spherical roller 8122 can easily slide out of the ball recess 6716,
the base 6711 comprises a top ring 6712, a middle ring 6713 and a bottom ring 6714 which are sequentially stacked, a roller 6715 is arranged between the top ring 6712 and the middle ring 6713, a roller 6715 is arranged between the middle ring 6713 and the bottom ring 6714, a ball recess 6716 is arranged on the inner wall of the middle ring 6713,
the fixed pipe section 814 is installed on the inner wall of the top of the positioning pipe section 812, the fixed pipe section 814 is sleeved on the periphery of the central rod 71, the key 8142 is spherical, the fixed pipe section 814 is provided with a second through hole 8141 for adapting the key 8142, the diameter of the key 8142 is larger than the length of the second through hole 8141, the inner wall of the positioning pipe section 812 is provided with a first key groove 8143, the first key groove 8143 is adapted to the key 8142, the outer wall of the bottom of the central rod 71 is provided with a second key groove 8144, the second key groove 8144 is adapted,
before coring, the key 8142 is positioned in the second through hole 8141 and the first key slot 8143, the fixed pipe section 814 is fixedly connected with the positioning pipe section 812 through the key 8142,
when coring, the central rod 71 moves upwards, the key 8142 is disengaged from the first key slot 8143, then the key 8142 enters the second key slot 8144, the fixed pipe section 814 is fixedly connected with the central rod 71 through the key 8142, the central rod 71 drives the fixed pipe section 814 to move upwards, the fixed pipe section 814 abuts against the bottom surface of the compensation pipe section 811, the central rod 71 further drives the core inner cylinder 81 to move upwards,
the inner wall edge of the bottom surface of the positioning pipe section 812 is a third inclined surface 8123 with the diameter gradually increasing from top to bottom,
a plurality of anti-skid convex ribs 8131 are axially arranged on the inner wall of the bottom of the storage cylinder 813, the anti-skid convex ribs 8131 are of an annular structure,
the bottom end of the central rod 71 is fixedly connected with a piston 712, the periphery of the bottom end of the central rod 71 is provided with a plurality of second sealing grooves 713, an O-shaped sealing ring is arranged in each second sealing groove 713, the O-shaped sealing ring at the bottom end of the central rod 71 is used for being in sealing connection with the inner wall of the positioning pipe section 812, the central rod 71 and the piston 712 are integrally manufactured, the coiling device 1 provides a continuous guide pipe 9 for the transfer device 2, the continuous guide pipe 9 penetrates through the drill rod 4 and is connected with,
the outer edge of the top surface of the piston 712 is a fourth inclined surface 714 with the diameter gradually increasing from top to bottom, the third inclined surface 8123 is matched with the fourth inclined surface 714, the piston 712 is in sliding connection with the inner wall of the storage cylinder 813, a third sealing groove 715 is formed in the periphery of the top of the piston 712, and a sealing ring is installed in the third sealing groove 715.
In actual use, after the inner tube assembly and the center assembly are assembled together, the continuous guide tube 9 is used to connect the top end of the center rod 71, the inner tube assembly is installed into the outer tube assembly, the latch mechanism 62 is engaged in the latch slot 621,
when coring is carried out, the central rod 71 is lifted up through the continuous conduit 9, the second fixing screw 711 is broken under the action of shearing force, the central component is separated from the inner pipe component, the storage cylinder 813 is kept still at the moment, the piston 712 moves upwards, the rock core enters the storage cylinder 813, after the third inclined surface 8123 is in contact with the fourth inclined surface 714, the central rod 71 drives the rock core inner cylinder 81 to move upwards, and after the bottom end of the rock core inner cylinder 81 is removed from the upper end of the circular valve clack 684, the circular valve clack 684 is closed towards the annular valve seat 683 under the action of gravity and elasticity, so that the coring work of pressure maintaining and gas protecting is achieved.
In the working process, the continuous guide pipe 9 is connected with the central rod 71, for coal mine coring, the used continuous guide pipe 9 has shorter length, the continuous guide pipe 9 has good torsion resistance,
meanwhile, the invention uses the composite bearing group 671, and the spherical roller 8122 is arranged between the composite bearing group 671 and the positioning pipe section 812, which can also prevent the rotation of the core inner cylinder 81,
the invention is also provided with a connecting section 63 which can transmit the rotation of the outer tube assembly to the core outer tube 68, reduce the influence of the outer tube assembly on the core inner tube 81, further prevent the core inner tube 81 from rotating,
the center assembly and the inner tube assembly are provided with two sets of thrust bearings 632, and when the snapping mechanism 62 rotates, the two sets of thrust bearings 632 act to prevent the core barrel from rotating.
The main coring workflow comprises the following steps:
s1, installing continuous pipe operation equipment;
s2, connecting the coring bit 56 with the outer pipe to assemble the outer pipe assembly, connecting the outer pipe assembly and the drill rod 4 by using the related equipment of the tunnel drilling machine, and gradually lowering the outer pipe assembly from the ground to the coring position;
s3, after the inner pipe assembly is assembled on the ground, connecting the continuous guide pipe 9 with the central rod 71 of the inner pipe assembly through a quick connector;
s4, continuously lowering the continuous pipe 9 through the continuous pipe operation equipment, thereby lowering the inner pipe assembly in the drill pipe 4, and the inner pipe assembly reaches the corresponding position of the outer pipe assembly (namely, the latch 622 of the elastic clamping mechanism 62 enters the elastic clamping chamber 511, and the elastic clamping mechanism 62 is located on the suspension ring 512);
s5, starting a ground drilling machine, rotating the drill rod driving device 1204 and performing pressurized drilling, wherein the inner pipe assembly and the outer pipe assembly are matched to perform downward drilling to start coring operation, and the ground blowout prevention box 1223 realizes sealing of a wellhead of the drilling tool;
s6, in the coring operation process, the continuous conduit operation equipment stops lowering the continuous conduit 9, the position of the continuous conduit 9 in the drill rod 4 is kept unchanged, the central component is kept static, along with the downward movement of the inner pipe component and the outer pipe assembly, the core enters the barrel,
in the operation process, under the working condition that the external drilling tool rotates, the core inner cylinder 81 is kept static by the combined action of the multiple anti-rotation mechanisms and the continuous conduit 9, so that the disturbance to the core is reduced; meanwhile, the piston 712 has a suction effect on the core, so that the resistance of the core entering the barrel is reduced;
s7, after coring is finished, the core is filled in the core inner cylinder 81, and the piston 712 of the central rod 71 moves to the positioning pipe section 812;
s8, starting continuous conduit operation equipment, lifting the continuous conduit 9, pulling the core barrel upwards by the continuous conduit 9 through the central rod 71, blocking the core by the anti-skid convex ridge 8131 at the end part of the core inner barrel 81, and lifting the core into the pressure maintaining cabin;
s9, continuously lifting the continuous guide pipe 9, when the lifting force is larger than F, the elastic clamping mechanism 62 contracts, the inner pipe assembly is lifted out of the outer pipe assembly, and then the continuous guide pipe 9 is quickly lifted;
s10, after the inner pipe assembly is lifted out of the drill rod 4 through the continuous guide pipe 9, the quick connector at the tail end of the continuous guide pipe 9 is disassembled, the inner pipe assembly is taken down for disassembly, the fidelity cabin part is placed into the transfer cabin, and the upper hanging part is used for the second time.
Wherein step S1 includes the following substeps:
s101, conveying the transmission device 2 to a coring place, and conveying the coiling device 1 to the rear of the transmission device 2;
s102, erecting a hydraulic cylinder support 1104 by using a hydraulic cylinder 1205 of the drilling machine, and erecting an injection head 1202 together;
s103, the turnover device is driven, and the injection head 1202 becomes a horizontal state.
Step S4 includes the following substeps:
s401, driving the turnover device, and enabling the injection head 1202 to be in a vertical state;
s402, the folding hydraulic rod 1208 acts, the plurality of arch beams 1224 extend, and the guide arch 1201 is lifted;
s403, the continuous conduit 9 extends into the guide arch 1201 from the reel device 1 through the pipe discharging device assembly 1103;
s404, the continuous catheter 9 extends into the injection head 1202 from the guide arch 1201, the conveying chain 1211 moves in the injection head 1202, the clamping block 1214 on the conveying chain 1211 is clamped outside the continuous catheter 9, the clamping block 1214 moves along with the conveying chain 1211, the clamping block 1214 clamped on the periphery of the continuous catheter 9 clamps the continuous catheter 9 under the action of the hydraulic clamping mechanism 1218, and the continuous catheter 9 moves downwards;
s405, assembling an inner pipe assembly, and connecting the continuous conduit 9 and the central rod 71 through a quick connector.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a continuous pipe formula gallery is got core and is equipped which characterized in that: comprises continuous conduit operation equipment and a coring device;
the continuous conduit operation equipment comprises a transfer device, wherein the transfer device comprises an injection head and a tunnel drilling machine;
the coring device comprises an inner pipe assembly and an outer pipe assembly, the outer pipe assembly is connected with the tunnel drilling machine through a drill rod, the inner pipe assembly is connected with the continuous guide pipe, the injection head is used for lowering/lifting the continuous guide pipe, and the inner pipe assembly is connected with the outer pipe assembly in a clamping manner.
2. The coring apparatus of claim 1, wherein: the inner pipe assembly comprises an inner pipe assembly and a central assembly, a composite bearing set is arranged between the inner pipe assembly and the central assembly, the central assembly comprises a positioning pipe section,
the composite bearing group comprises a base, the base is in a thrust bearing form, the base is arranged in the inner pipe assembly, the inner wall of the base is provided with an annular ball recess, the middle of the positioning pipe section is provided with a plurality of ball holes along the circumferential direction, the spherical roller is arranged in the ball holes, and the convex part of the spherical roller is matched with the ball recess.
3. The coring apparatus of claim 2, wherein: the base comprises a top ring, a middle ring and a bottom ring which are sequentially stacked, a roller is arranged between the top ring and the middle ring, the roller is arranged between the middle ring and the bottom ring, and a ball recess is formed in the inner wall of the middle ring.
4. Coring equipment as claimed in claim 1, 2 or 3, wherein: the center assembly is provided with a first annular convex edge, the inner pipe assembly comprises a second annular convex edge and a sixth pipe section, a thrust bearing is installed between the top surface of the first annular convex edge and the bottom surface of the second annular convex edge, and a thrust bearing is installed between the top surface of the sixth pipe section and the bottom surface of the first annular convex edge.
5. The coring apparatus of claim 1, wherein: the top of the inner pipe component is provided with an elastic clamping mechanism, the inner wall of the top of the outer pipe assembly is provided with an elastic clamping chamber,
the outer wall of the elastic clamping mechanism is provided with a latch groove, a latch is installed in the latch groove, the bottom of the latch is rotatably connected with the inner wall of the latch groove, a spring is arranged between the top of the latch and the latch groove, and the latch is matched with the elastic clamping chamber.
6. The coring apparatus of claim 2, wherein: the central component comprises a central rod and a core inner cylinder, the top end of the central rod is connected with a continuous conduit, the bottom of the central rod is inserted into the core inner cylinder, the core inner cylinder comprises a compensation pipe section, a positioning pipe section and a storage cylinder which are sequentially and fixedly connected from top to bottom, a fixed pipe section is installed in the positioning pipe section, the fixed pipe section is sleeved on the central rod, a second through hole is formed in the fixed pipe section along the radial direction, a spherical key is installed in the second through hole, and the diameter of the key is larger than the length of the.
7. The coring apparatus of claim 1, wherein: the injection head comprises an outer frame, a conveying mechanism, a conveying chain counter and a load sensor are arranged in the outer frame,
two transport mechanism set up side by side, and transport mechanism includes the transfer chain, and the transfer chain top is equipped with the transfer chain motor, and the transfer chain bottom is equipped with down the sprocket, installs on the transfer chain and adds and holds the piece, and the adjacent part of two transfer chains passes hydraulic clamping mechanism, and clamping arm and transfer chain sliding fit, the injection head bottom is equipped with turning device.
8. The coring apparatus of claim 1, wherein: the transfer device also comprises a guide arch, a plurality of guide wheels are arranged on the top of the guide arch along the length direction, a plurality of pinch rollers are arranged on the top of the guide arch along the length direction,
and a hydraulic assembly is arranged between the guide arch and the injection head, the hydraulic assembly comprises a folding hydraulic rod, the bottom end of the folding hydraulic rod is hinged with the injection head, the top end of the folding hydraulic rod is hinged with a sliding block, and the sliding block is in sliding fit with the bottom surface of the guide arch.
9. The coring apparatus of claim 1, wherein: the continuous conduit operation equipment further comprises a reel device, the reel device comprises a reel, the reel is installed on a reel frame, a pipe arrangement device assembly is arranged on the reel frame and used for controlling the sequence of the continuous conduit reels, and the reel is driven by a reel motor.
10. The coring apparatus of claim 9, wherein: the pipe arranging device assembly comprises a support and a torque limiter, a lifting hydraulic rod is arranged between the support and a winding drum frame, a bidirectional screw rod is arranged on the support, a guide device is arranged on the bidirectional screw rod, a mechanical counter and a rotating system are arranged in the guide device, the rotating system comprises a plurality of conveying wheels, and a lifting oil cylinder is arranged between the guide device and the bidirectional screw rod.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010346394.1A CN111550208B (en) | 2020-04-27 | 2020-04-27 | Continuous conduit type tunnel coring equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010346394.1A CN111550208B (en) | 2020-04-27 | 2020-04-27 | Continuous conduit type tunnel coring equipment |
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| CN111550208A true CN111550208A (en) | 2020-08-18 |
| CN111550208B CN111550208B (en) | 2024-06-07 |
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| US20050167158A1 (en) * | 2002-09-26 | 2005-08-04 | Halliburton Energy Services, Inc. | One-step directional coring or drilling system |
| CN2690572Y (en) * | 2004-03-01 | 2005-04-06 | 辽河石油勘探局 | Core taking tool while drilling |
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| CN111550208B (en) | 2024-06-07 |
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