CN112943136B - Coring mechanism and coring method - Google Patents
Coring mechanism and coring method Download PDFInfo
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- CN112943136B CN112943136B CN202110193642.8A CN202110193642A CN112943136B CN 112943136 B CN112943136 B CN 112943136B CN 202110193642 A CN202110193642 A CN 202110193642A CN 112943136 B CN112943136 B CN 112943136B
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- electric trolley
- coring
- coring device
- rotary arm
- tensioning
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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, core extractors
- E21B25/10—Formed core retaining or severing means
Abstract
The invention provides a coring mechanism and a coring method, wherein the coring mechanism comprises a power unit and a coring device which are movably arranged in a drill rod, the power unit is connected with the coring device and used for providing power for the operation of the coring device, and the power unit is an electric trolley. The coring method comprises the steps of 1, positioning a coring device; step 2, the electric trolley drives the motor current change through walking to enable the manipulator to be opened so as to be separated from the coring device, and the winch retracts the electric trolley to a safe position in the drill rod through a winch steel wire cable; and 3, breaking rock by using a drill bit, storing the middle core column by using the coring device, advancing the electric trolley and connecting the electric trolley with the spearhead of the coring device again through the mechanical arm, withdrawing the electric trolley by using the winch through a winch steel wire cable, and synchronously withdrawing the coring device along with the electric trolley to cut off the core column to finish coring operation. The invention adopts an electric trolley as a power transmission coring device and is used for providing power for the operation of the coring device.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a core taking mechanism and a core taking method.
Background
The wire coring widely adopted at present comprises the combined mode of diamond bit grinding, flushing fluid (such as water) cooling and deslagging and a flushing fluid conveying coring device to complete the coring operation. For example, the invention patent with the patent number of CN107905752A discloses a double-pipe wire line core drill, a drill assembled by the double-pipe wire line core drill and a core drilling method of the double-pipe wire line core drill, wherein a water joint is installed when the drill is put in, and an inner pipe assembly is pushed by water pressure until the drill is in place; the water joint is installed when the drilling tool is salvaged, the fisher is placed in the water joint, and the fisher is pushed to the inner pipe assembly by means of water pressure to be fixed with the fishing spearhead. The core drill bit disclosed by the invention needs to adopt water pressure as power for conveying the drill bit in place and the fisher in place. However, in the water-deficient and cold regions, the water source is scarce, the operation difficulty is large and the cost is high. In addition, water easily runs off when the core is got in horizontal drilling, leads to sticking the brill, burning and sealed quick wearing and tearing scheduling problem, and water is easily washed away and pollutes the rock core simultaneously, influences coring rate and lithology and judges, and the sediment is mixed in addition the water sediment back, is unfavorable for pneumatic down-the-hole hammer and arranges the sediment.
In view of the above, there is a need for a core-taking mechanism and a core-taking method to solve the problems of great operation difficulty and high cost in the prior art that adopts water pressure as power.
Disclosure of Invention
The invention aims to provide a core taking mechanism, which has the following specific technical scheme:
the utility model provides a coring mechanism, includes portable setting at inside power unit and the coring device of drilling rod, power unit and coring device are connected for provide power for the coring device operation.
Preferably, the power unit is an electric trolley.
Preferably, electronic dolly includes power component and tensioning assembly, power component includes walking driving motor, decelerator and drive gear, walking driving motor provides operation power for electronic dolly, and walking driving motor's output is connected with decelerator, decelerator and drive gear are connected for thereby realize electronic dolly and advance on transmitting walking driving motor's output power to drive gear, drive gear's quantity is two and sets up along the broadside direction symmetry of electronic dolly, tensioning assembly is connected with drive gear and provides tightening torque for drive gear and makes drive gear paste tight drilling rod inner wall.
Preferably, the tensioning assembly is including the rocking arm tensioning motor, rocking arm tensioning screw rod, rocking arm tensioning connecting rod and the drive wheel rocking arm that connect gradually, the quantity of rocking arm tensioning connecting rod is two and separately sets up the one end tip of keeping away from rocking arm tensioning motor at rocking arm tensioning screw rod, the quantity of drive wheel rocking arm is two and corresponds the setting respectively on every rocking arm tensioning connecting rod, the drive wheel rocking arm is connected with the drive gear one-to-one, the rotatory moment that rocking arm tensioning motor provided converts axial thrust into through rocking arm tensioning screw rod to promote two rocking arm tensioning connecting rods and form certain contained angles, open two drive wheel rocking arms, through the drive wheel rocking arm finally with tensile force transmission to drive gear on, make drive gear hug closely the drilling rod inner wall.
Preferably, the electric trolley further comprises a frame and guide assemblies arranged outside the frame, the frame is arranged outside the power assembly and the tensioning assembly, the number of the guide assemblies is two, the guide assemblies are symmetrically arranged at two ends of the frame along the length direction of the drill rod, each guide assembly comprises a support roller, a compression spring, an adjusting piece and a guide shaft, the guide shaft is arranged at one end of the frame along the length direction of the drill rod, the number of the support rollers is two, the support rollers are symmetrically arranged at two sides of the guide shaft through the telescopic pieces, the compression springs and the adjusting pieces are sleeved on the guide shaft, one end of each compression spring is fixedly connected with the telescopic piece, the other end of each compression spring is in contact with the adjusting piece, the adjusting piece is in threaded connection with the guide shaft, the compression springs are in a compression state through rotating the adjusting pieces, and the support rollers are further pressed against the inner wall of the drill rod through the compression of the adjusting pieces;
the electric trolley is also provided with a monitor and a stroke metering device, the monitor is used for observing road conditions in the running direction of the electric trolley, and the stroke metering device is used for following the stroke of the electric trolley in real time.
Preferably, the number of the electric trolleys is at least one, and when the number of the electric trolleys is two or more, the adjacent electric trolleys are connected through a flange.
Preferably, still include manipulator and hoist engine, the one end of electric trolley is passed through the manipulator and is connected with the spearhead of dragging for of coring device, the other end of electric trolley passes through wire cable and is connected with the hoist engine, and electric trolley passes through wire cable and external power source intercommunication.
Preferably, the drill rod comprises a drill bit arranged at the operation end of the drill rod, and a positioning step and an elastic clamping chamber which are sequentially far away from the drill bit and arranged inside the drill rod.
Preferably, the coring device still includes the spring guide wheel and keeps away from in proper order and drags for bullet card component, O type circle, holding ring and the jump ring that the spearhead set up, play the card component be connected with O type circle and with play card room cooperation setting, the holding ring near O type circle and with the cooperation setting of location step, the jump ring is close to the drill bit setting for cut the core pillar, the spring guide wheel hoop sets up in the outside of coring device and laminates with the drilling rod inner wall.
The second purpose of the invention is to provide a coring method of a coring mechanism, which has the following specific technical scheme:
a coring method of the coring mechanism comprises the following steps:
step 1, positioning the coring device, specifically, connecting an electric trolley with a spearhead of the coring device through a mechanical arm, conveying the coring device to a preset position, enabling a positioning ring to abut against a positioning step, and opening an elastic clamping component into an elastic clamping chamber under the action of an O-shaped ring to complete positioning of the coring device;
step 2, withdrawing the electric trolley, specifically, the electric trolley drives the current change of a motor through walking to open the mechanical arm so as to separate from the coring device, and the winch withdraws the electric trolley to a safe position in the drill rod through a winch steel wire cable;
and 3, coring operation, specifically, breaking rock by using a drill bit, storing the middle core column by using the coring device, advancing the electric trolley and connecting the electric trolley with the spearhead of the coring device through the mechanical arm again, withdrawing the electric trolley by using the winch through a winch steel wire cable, synchronously withdrawing the coring device along with the electric trolley, driving the elastic clamping member to retract when the coring device retreats, and driving the clamp spring to retreat and tighten relative to the core column, so that the core column is cut off, and the coring operation is completed.
The technical scheme of the invention has the following beneficial effects:
the core taking mechanism provided by the invention adopts the electric trolley as the power conveying core taking device, is used for providing power for the operation of the core taking device, and solves the problems of great operation difficulty and high cost in the prior art by adopting water pressure as power. The coring method has the advantages of simple steps, easy operation and strong practicability.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a core-pulling mechanism according to embodiment 1 of the present invention during operation;
FIG. 2 is a schematic structural view of the electric trolley and the manipulator arranged inside the drill pipe;
the automatic drilling machine comprises an electric trolley 1, a walking driving motor 1.1, a speed reducing device 1.2, a speed reducing device 1.3, a driving gear 1.4, a rotating arm tensioning motor 1.5, a rotating arm tensioning screw 1.6, a rotating arm tensioning connecting rod 1.7, a driving wheel rotating arm 1.8, a frame 1.9, a supporting roller 1.10, a compression spring 1.11, a monitor 1.12, an adjusting piece 1.13, a guide shaft 2, a coring device 2.1, a spearhead 2.2, an elastic clamping member 2.3, an O-shaped ring 2.4, a positioning ring 2.5, a snap spring 2.6, a spring guide wheel 3, a drill rod 3.1, a drill bit 3.2, a positioning step 3.3, an elastic clamping chamber 4, a manipulator 5, a winch 6 and a steel wire cable.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Example 1:
referring to fig. 1-2, a coring mechanism comprises a power unit and a coring device 2 which are movably arranged inside a drill rod 3, wherein the power unit is connected with the coring device 2 and is used for providing power for the operation of the coring device 2.
The power unit is an electric trolley 1.
Electronic dolly 1 includes power component and tensioning assembly, power component includes walking driving motor 1.1, decelerator 1.2 and drive gear 1.3, walking driving motor 1.1 provides operation power for electronic dolly 1, and walking driving motor 1.1's output is connected with decelerator 1.2, decelerator 1.2 is connected with drive gear 1.3 for thereby realize electronic dolly 1 and advance on transmitting drive gear 1.3 with walking driving motor 1.1's output power, drive gear 1.3's quantity is two and follows the broadside direction symmetry setting of electronic dolly 1, tensioning assembly is connected with two drive gear 1.3 and provides the tensioning moment for driving two gears 1.3 and makes two drive gear 1.3 paste tight drilling rod 3 inner wall.
The tensioning assembly comprises a rotary arm tensioning motor 1.4, a rotary arm tensioning screw rod 1.5, rotary arm tensioning connecting rods 1.6 and a driving wheel rotary arm 1.7 which are sequentially connected, the number of the rotary arm tensioning connecting rods 1.6 is two, the rotary arm tensioning connecting rods are separately arranged at one end part of the rotary arm tensioning screw rod 1.5 far away from the rotary arm tensioning motor 1.4, the number of the driving wheel rotary arm 1.7 is two, the two rotary arm tensioning connecting rods are respectively and correspondingly arranged on each rotary arm tensioning connecting rod 1.6, the driving wheel rotary arm 1.7 is in one-to-one correspondence with the driving wheel 1.3, the rotation torque provided by the rotary arm tensioning motor 1.4 is converted into axial thrust through the rotary arm tensioning screw rod 1.5, so that the two rotary arm tensioning connecting rods 1.6 are pushed to form a certain included angle, the two driving wheel rotary arms 1.7 are opened, and finally the tensioning force is transmitted to the driving wheel rotary arm 1.7 to the driving wheel rotary arm 1.3, so that the driving wheel 1.3 is tightly attached to the inner wall of the drilling rod 3.
The electric trolley 1 further comprises a frame 1.8 and guide assemblies arranged outside the frame 1.8, the frame 1.8 is arranged outside the power assembly and the tensioning assembly, the number of the guide assemblies is two, the guide assemblies are symmetrically arranged at two ends of the frame 1.8 along the length direction of the drill rod 3, each guide assembly comprises two support rollers 1.9, two compression springs 1.10, adjusting pieces 1.12 (preferably adjusting nuts) and two guide shafts 1.13, the guide shafts 1.13 are arranged at one end of the frame 1.8 along the length direction of the drill rod 3, the number of the support rollers 1.9 is two, the two support rollers are symmetrically arranged at two sides of the guide shaft 1.13 through expansion pieces (specifically two hinged support rods), the compression springs 1.10 and the adjusting nuts are sleeved on the guide shaft 1.13, one end of the compression springs 1.10 is fixedly connected with the expansion pieces, the other end of the compression springs is contacted with the adjusting nuts, the adjusting nuts are in threaded connection with the guide shaft 1.13, the compression springs 1.10 are in a compression state through rotation of the adjusting nuts, and the expansion pieces are tightly attached to the inner walls of the support rollers 1.9;
the electric trolley 1 is also provided with a monitor 1.11 and a stroke metering device (not shown in the figure), the monitor 1.11 is used for observing the road condition in the running direction of the electric trolley 1, and the stroke metering device is used for following the stroke of the electric trolley 1 in real time.
The number of the electric trolleys 1 is at least one, and when the number of the electric trolleys 1 is two or more, the adjacent electric trolleys 1 are connected through a flange. The number of the electric trolleys 1 in the embodiment is one.
Get core mechanism, still include manipulator 4 and hoist engine 5, the one end of electric trolley 1 is passed through manipulator 4 and is connected with the spearhead 2.1 of dragging for of coring device 2, the other end of electric trolley 1 passes through wire cable 6 and is connected with hoist engine 5, and electric trolley 1 passes through wire cable 6 and external power source intercommunication.
The drill rod 3 comprises a drill bit 3.1 arranged at the operation end of the drill rod 3, and a positioning step 3.2 and a spring clamping chamber 3.3 which are sequentially far away from the drill bit 3.1 and arranged inside the drill rod 3.
Coring device 2 still includes spring guide wheel 2.6 and keeps away from in proper order and drags for bullet card component 2.2, O type circle 2.3, holding ring 2.4 and jump ring 2.5 that spearhead 2.1 set up, bullet card component 2.2 is connected with O type circle 2.3 and sets up with bullet card room 3.3 cooperation, holding ring 2.4 is near O type circle 2.3 and sets up with the cooperation of positioning step 3.2, and setting up of bullet card component 2.2 and holding ring 2.4 has guaranteed that coring device 2 can pinpoint fast, jump ring 2.5 is close to drill bit 3.1 and sets up for cut the core-barrel, spring guide wheel 2.6 hoop sets up in 2 outside and with the laminating of drilling rod 3 inner wall, guarantees that coring device 2 keeps centering with drilling rod 3 the central axis in the motion process, prevents simultaneously that coring device 2 from marcing in the advancing because of the deformation of drilling rod 3 by the card because of coring device 2.
A coring method according to the coring mechanism, comprising the steps of:
step 1, positioning a coring device 2, specifically, connecting an electric trolley 1 with a spearhead 2.1 of the coring device 2 through a mechanical arm 4, conveying the coring device 2 to a preset position, enabling a positioning ring 2.4 to abut against a positioning step 3.2, and opening an elastic clamping member 2.2 into an elastic clamping chamber 3.3 under the action of an O-shaped ring 2.3 to complete positioning of the coring device 2;
step 2, withdrawing the electric trolley 1, specifically, the electric trolley 1 opens the mechanical arm 4 to separate from the coring device 2 through the current change of a walking driving motor 1.1, and the winch 5 withdraws the electric trolley 1 to a safe position in the drill rod 3 through a winch steel wire cable 6;
step 3, coring operation, specifically, a drill bit 3.1 breaks rock, the coring device 2 stores a middle core column, the electric trolley 1 moves forward and is connected with the spearhead 2.1 of the coring device 2 through the mechanical arm 4 again, the winch 5 withdraws the electric trolley 1 through the winch steel wire cable 6, the coring device 2 is withdrawn along with the electric trolley 1 synchronously, the snap spring component 2.2 is driven to retract when the coring device 2 retreats, and the snap spring 2.5 is driven to retreat and tighten relative to the core column, so that the core column is cut off, and the coring operation is completed.
This embodiment adopts electronic dolly 1 to carry coring device 2 as power for 2 operations of coring device provide power, adopt the big and with high costs problem of the operation degree of difficulty that water pressure exists as power among the solution prior art.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The core taking mechanism is characterized by comprising a power unit and a core taking device which are movably arranged in a drill rod, wherein the power unit is connected with the core taking device and is used for providing power for the operation of the core taking device;
the power unit is an electric trolley;
the electric trolley comprises a power assembly and a tensioning assembly, wherein the power assembly comprises a walking driving motor, a speed reducer and a driving gear, the walking driving motor provides running power for the electric trolley, the output end of the walking driving motor is connected with the speed reducer, the speed reducer is connected with the driving gear and is used for transmitting the output power of the walking driving motor to the driving gear so as to realize the forward movement of the electric trolley, the two driving gears are symmetrically arranged along the direction of the wide edge of the electric trolley, and the tensioning assembly is connected with the driving gear and provides tensioning torque for the driving gear so that the driving gear is tightly attached to the inner wall of a drill rod;
the tensioning assembly comprises a rotary arm tensioning motor, a rotary arm tensioning screw rod, rotary arm tensioning connecting rods and a driving wheel rotary arm which are connected in sequence, the number of the rotary arm tensioning connecting rods is two, the rotary arm tensioning connecting rods are separately arranged at one end of the rotary arm tensioning screw rod far away from the rotary arm tensioning motor, the number of the driving wheel rotary arm is two, the rotary arm is correspondingly arranged on each rotary arm tensioning connecting rod, the driving wheel rotary arm is connected with the driving gear in a one-to-one mode, the rotary torque provided by the rotary arm tensioning motor is converted into axial thrust through the rotary arm tensioning screw rod, so that the two rotary arm tensioning connecting rods are pushed to form a certain included angle, the two driving wheel rotary arms are opened, and the tensile force is finally transmitted to the driving gear through the driving wheel rotary arm, so that the driving gear is clung to the inner wall of the drilling rod.
2. The core-picking mechanism according to claim 1, wherein the electric trolley further comprises a frame and guide assemblies arranged outside the frame, the frame is arranged outside the power assembly and the tensioning assembly, the number of the guide assemblies is two, the guide assemblies are symmetrically arranged at two ends of the frame along the length direction of the drill rod, each guide assembly comprises a support roller, a compression spring, an adjusting piece and a guide shaft, the guide shaft is arranged at one end of the frame along the length direction of the drill rod, the number of the support rollers is two, the support rollers are symmetrically arranged at two sides of the guide shaft through the telescopic pieces, the compression spring and the adjusting piece are sleeved on the guide shaft, one end of the compression spring is fixedly connected with the telescopic piece, the other end of the compression spring is in contact with the adjusting piece, the adjusting piece is in threaded connection with the guide shaft, the compression spring is in a compression state through rotation of the adjusting piece, and the telescopic piece is further extruded to enable the support rollers to be tightly attached to the inner wall of the drill rod;
the electric trolley is further provided with a monitor and a stroke metering device, the monitor is used for observing road conditions in the running direction of the electric trolley, and the stroke metering device is used for following the stroke of the electric trolley in real time.
3. The core-pulling mechanism as claimed in claim 2, wherein the number of the electric trolleys is at least one, and when the number of the electric trolleys is more than two, the adjacent electric trolleys are connected through a flange.
4. The core taking mechanism as claimed in claim 3, further comprising a mechanical arm and a winch, wherein one end of the electric trolley is connected with the spearhead of the coring device through the mechanical arm, the other end of the electric trolley is connected with the winch through a steel wire cable, and the electric trolley is communicated with an external power supply through the steel wire cable.
5. The core-pulling mechanism as claimed in claim 4, wherein the drill stem comprises a drill bit arranged at the working end of the drill stem and a positioning step and a snapping chamber which are sequentially far away from the drill bit and arranged inside the drill stem.
6. The coring mechanism as claimed in claim 5, wherein the coring device further comprises a spring guide wheel, and an elastic clamping member, an O-shaped ring, a positioning ring and a snap spring which are sequentially arranged away from the spearhead, the elastic clamping member is connected with the O-shaped ring and is matched with the elastic clamping chamber, the positioning ring is close to the O-shaped ring and is matched with the positioning step, the snap spring is arranged close to the drill bit and is used for cutting off the core column, and the spring guide wheel is annularly arranged outside the coring device and is attached to the inner wall of the drill rod.
7. A coring method of a coring mechanism according to claim 6, comprising the steps of:
step 1, positioning the coring device, specifically, connecting an electric trolley with a spearhead of the coring device through a mechanical arm, conveying the coring device to a preset position, enabling a positioning ring to abut against a positioning step, and opening an elastic clamping member into an elastic clamping chamber under the action of an O-shaped ring to complete positioning of the coring device;
step 2, withdrawing the electric trolley, specifically, the electric trolley drives the current change of a motor through walking to open the mechanical arm so as to separate from the coring device, and the winch withdraws the electric trolley to a safe position in the drill rod through a winch steel wire cable;
and 3, performing coring operation, namely breaking rock by using a drill bit, storing the middle core column by using the coring device, advancing the electric trolley and connecting the electric trolley with a spearhead of the coring device through the mechanical arm again, withdrawing the electric trolley by using the winch through a winch steel wire cable, synchronously withdrawing the coring device along with the electric trolley, driving the elastic clamping member to retract when the coring device retreats, and driving the clamp spring to retreat and tighten relative to the core column, so that the core column is cut off, and the coring operation is completed.
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| CN202110193642.8A CN112943136B (en) | 2021-02-20 | 2021-02-20 | Coring mechanism and coring method |
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| CN202110193642.8A CN112943136B (en) | 2021-02-20 | 2021-02-20 | Coring mechanism and coring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114033327B (en) * | 2021-10-12 | 2023-05-26 | 深圳大学 | Lifting rope type coring self-locking anchoring device |
| CN114562226B (en) * | 2022-02-28 | 2024-03-12 | 中国铁建重工集团股份有限公司 | Coring inner tube |
| CN114961617B (en) * | 2022-07-29 | 2022-10-25 | 陕西太合智能钻探有限公司 | Hydrodynamic core drill |
| CN115234186B (en) * | 2022-08-12 | 2024-02-27 | 中国铁建重工集团股份有限公司 | Combined coring drilling machine and working method thereof |
| CN116084870B (en) * | 2023-03-10 | 2023-06-06 | 西南石油大学 | Portable coring tool of all-terrain |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240707B (en) * | 2008-03-13 | 2011-04-13 | 上海交通大学 | Geological borehole wall rock strain measurement device |
| CN203452780U (en) * | 2013-09-22 | 2014-02-26 | 北京信远华油科技有限公司 | Motor direct-driven-type side-wall coring instrument |
| CN104514488B (en) * | 2014-12-19 | 2017-02-22 | 广州建设工程质量安全检测中心有限公司 | Complete device and method for detecting drilling core of large-diameter bored pile under existing building |
| EP3327247A1 (en) * | 2016-11-23 | 2018-05-30 | BAUER Maschinen GmbH | Drilling device and method for rock drilling |
| CN107905752A (en) * | 2017-11-07 | 2018-04-13 | 林州市振晨重工装备制造有限公司 | Two-tube core plugging notifying mechanism of rope core drilling and its drilling machine and its coring method of assembling |
| CN110924887B (en) * | 2019-12-03 | 2020-06-30 | 湖南科技大学 | Deep sea submarine drilling rig rope coring and salvaging system and using method thereof |
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