CN116752919B - Rock and soil core drill bit capable of stably coring - Google Patents
Rock and soil core drill bit capable of stably coring Download PDFInfo
- Publication number
- CN116752919B CN116752919B CN202311014666.8A CN202311014666A CN116752919B CN 116752919 B CN116752919 B CN 116752919B CN 202311014666 A CN202311014666 A CN 202311014666A CN 116752919 B CN116752919 B CN 116752919B
- Authority
- CN
- China
- Prior art keywords
- drill
- sleeve
- along
- axis
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002689 soil Substances 0.000 title claims abstract description 26
- 239000011435 rock Substances 0.000 title description 40
- 238000005070 sampling Methods 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 210000000078 claw Anatomy 0.000 claims description 21
- 230000003139 buffering effect Effects 0.000 claims 4
- 238000005553 drilling Methods 0.000 abstract description 13
- 230000008093 supporting effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of rock-soil core drilling tools, in particular to a rock-soil core drilling tool capable of stably coring, which comprises a top plate, a sampling device and a lifting device, wherein the top plate is provided with a sampling hole; the top plate is of a circular structure, and the shell is rotationally arranged below the top plate along the axis of the top plate; the drill sleeve is fixedly arranged on the shell in a penetrating way along the axis of the shell, and an annular gap is reserved between the outer side of the drill sleeve and the inner wall of the shell; the drill bit is fixedly arranged at the lower part of the drill sleeve along the axis of the drill sleeve; the blade is arranged on the drill bit in a sliding manner along the radial direction of the drill bit; the sliding sleeve is arranged in the drill sleeve in a sliding way along the axis of the drill sleeve; the pushing rod is arranged in the sliding sleeve in a sliding way along the axis of the sliding sleeve; the limiting device is rotatably arranged on the side wall of the drill sleeve, and one end of the limiting device is hinged on the side wall of the sliding sleeve; the accommodating bin is arranged at the upper part of the drill sleeve; the driving device is arranged at the upper part of the accommodating bin, and one end of the driving device is connected with the drill bushing; the air supply device is arranged in the accommodating bin. The invention prevents the core sample from slipping out of the annular gap.
Description
Technical Field
The invention relates to the technical field of rock-soil core drilling tools, in particular to a rock-soil core drilling tool capable of stably coring.
Background
The existing rock-soil coring drilling tool is lack of fixation for a rock core, is easy to fall off in the coring process, is not easy to break and take out when the rock core is hard in texture, and the like, and is easy to cause excessive slurry to pollute the rock core when the rock core is cored in water-proof rock soil.
Chinese patent CN213573984U discloses a marine rock-soil coring bit comprising: the drilling tool comprises an annular supporting plate, a supporting structure, a lifting structure, a first fixing structure, a second fixing structure and a rotating structure, wherein the annular supporting plate is used for supporting the drilling tool; the support structure is arranged on the annular support plate; the first fixing structure is arranged on the annular supporting plate; the second fixing structure is arranged on the annular supporting plate; the lifting structure is arranged on the second fixed structure; the rotating structure is arranged on the lifting structure, and the supporting structure comprises: four pairs of first fixing rings, two pairs of first rotating round rods, four pairs of first fixing buckles, two pairs of rotating plates and two pairs of first fixing plates; four pairs of first fixed circular rings are arranged on the side surface of the annular supporting plate, each first rotating circular rod is arranged on a corresponding pair of first fixed circular rings, each first fixed buckle is arranged on a corresponding first fixed circular ring, the first fixed buckles are connected with the first rotating circular rods, each rotating plate is arranged on a corresponding first rotating circular rod, and each first fixed plate is arranged on a corresponding first rotating circular rod. This scheme can avoid muddy water to cause the pollution to the rock core, but can't take out the harder rock of texture through the spiral rotating rod, when sampling hard rock promptly, if want to sample rock, just need the spiral rotating rod have sufficient intensity, rock is in the same place with soil layer mixture in drilling process usually, this can appear the uneven condition of atress, the spiral rotating rod is easy to appear crooked condition when boring, the unable fine of spiral rotating rod brings hard rock simultaneously, if want to accomplish sampling smoothly just need smash the rock, result in peripheral soil or other samples to mix, influence the sample, even after accomplishing sampling, because the rock is hard, also be inconvenient for taking out the rock.
Chinese patent CN216197951U discloses a marine rock-soil coring drilling tool, which comprises a bracket, wherein a first hydraulic cylinder is installed on the bracket, a piston rod of the first hydraulic cylinder extends along the vertical direction and is provided with a mounting plate, and a drill pipe vertically arranged and a driving component for driving the drill pipe to rotate are arranged on the mounting plate; the utility model discloses a drilling machine, including the support, the mounting panel is installed on the support, install the dead lever of wearing to locate mounting panel and drill pipe along vertical direction slip, the dead lever is the coaxial line setting with the drill pipe and installs the slip and inlay the jack-up in the drill pipe, this scheme has the effect of ejecting the core automatically, the operation degree of difficulty is little, the taking out of core has been made things convenient for, but because the core is at the root of rising in-process still be connected with the rock body, can't guarantee the core and take out the integrality of terminal surface down after, and the core in the drill pipe does not have the support of side and bottom at the in-process that rises, there is the risk that the slippage dropped.
Disclosure of Invention
To above-mentioned problem, provide a rock soil coring bit that can stabilize coring, when taking samples, drive arrangement drives the drill bushing and rotates, because drill bushing and shell are fixed connection, so shell and drill bushing just can rotate in step, the drill bit of setting in drill bushing bottom also can rotate in step, the elevating gear who sets up in roof upper portion drives the roof simultaneously descends gradually, make rock slide into annular space along with the brill of drill bit and shell gradually, after the whole slip in annular space of the rock core sample that needs to take samples, elevating gear stops to descend, because the root of the rock core sample still is connected with the rock body this moment, need make the rock core sample take out the rock core sample smoothly with the disconnection of rock body, the air feeder begins to supply air to the drill bushing this moment, the carriage receives the gas promotion and slides foremost, the carriage will be located the blade of drill bushing and release gradually, drive the blade rotates, the blade cuts the bottom and the rock body of rock core sample, make the rock core sample separate with the continuous air feed sliding sleeve along with the axis of air feeder, the sliding sleeve slides along the root of sleeve and drives the axis of rock core sample and slide, the annular slide sleeve is still can not be stretched out from the spacing device to the spacing effect of core sample from the annular space, the sample can be prevented from stretching out simultaneously.
In order to solve the problems in the prior art, the rock-soil coring drilling tool capable of stably coring comprises a top plate, a sampling device and a lifting device; the sampling device comprises a shell, a drill bit, a drill bushing, a blade, a limiting device, a driving device, a pushing rod, an air supply device, a sliding sleeve and a containing bin; the top plate is of a circular structure, and the shell is rotationally arranged below the top plate along the axis of the top plate; the drill sleeve is fixedly arranged on the shell in a penetrating manner along the axis of the shell, an annular gap is reserved between the outer side of the drill sleeve and the inner wall of the shell, and the annular gap is used for storing a core sample; the drill bit is fixedly arranged at the lower part of the drill sleeve along the axis of the drill sleeve; the blade is arranged on the drill bit in a sliding manner along the radial direction of the drill bit; the sliding sleeve is arranged in the drill sleeve in a sliding way along the axis of the drill sleeve; the pushing rod is arranged in the sliding sleeve in a sliding way along the axis of the sliding sleeve; the limiting device is rotatably arranged on the side wall of the drill bushing, one end of the limiting device is hinged on the side wall of the sliding sleeve, the sliding sleeve can drive the limiting device to rotate after sliding, and the limiting device limits a core sample positioned in the annular gap; the accommodating bin is arranged at the upper part of the drill sleeve; the driving device is arranged at the upper part of the accommodating bin, one end of the driving device is connected with the drill bushing, and the driving device drives the drill bushing to rotate; the air supply device is arranged in the accommodating bin, and can supply air to the upper part of the drill bushing and enable the pushing rod to slide with the limiting device.
Preferably, the limiting device comprises a limiting claw and a limiting groove; one end of the limiting claw is hinged with the side wall of the sliding sleeve, and the limiting claw is inclined downwards; the limiting groove is formed in the limiting claw along the length direction of the limiting claw, the through groove is formed in the side wall of the drill bushing, the first hinge post is arranged on the through groove, and the first hinge post is in sliding fit with the limiting groove.
Preferably, the drive means comprises a rotary drive, a gear and a toothed ring; the gear ring is fixedly arranged on the drill sleeve along the axis of the drill sleeve; the gear is rotatably arranged on one side of the toothed ring along the axis of the drill bushing, the gear is meshed with the toothed ring, and the diameter of the gear is smaller than that of the toothed ring; the rotary driver is fixedly arranged in the accommodating bin, and the output end of the rotary driver is fixedly connected with the gear and can drive the gear to rotate.
Preferably, the air supply device includes a first air pump and a first spring; the first air pump is arranged at the upper part of the accommodating bin; the bottom end face of the holding bin is coplanar with the upper end face of the drill bushing, a first gap is reserved between the bottom of the holding bin and the upper part of the sliding sleeve, a first spring is arranged in the first gap along the axis of the sliding sleeve, and two ends of the first spring are fixedly connected with the holding bin and the sliding sleeve respectively.
Preferably, the sampling device further comprises a disconnecting device, wherein the disconnecting device comprises a second air pump, a pressure tank, a connecting pipe and a pressurizing sheet; the second air pump is arranged in the accommodating bin; the pressure tank is fixedly arranged at the output end of the second air pump; the pressurizing sheet is arranged in the drill bit in a sliding manner along the radial direction of the drill bit, the pressurizing sheet and the blade are positioned on the same plane, and the pressurizing sheet can discharge air in the pressure tank; two ends of the connecting pipe are respectively connected with the pressure tank and the pressurizing sheet.
Preferably, the air supply device further comprises a first convex ring and a second convex ring; the first convex ring is fixedly arranged on the outer wall of the upper side of the sliding sleeve along the axis of the sliding sleeve; the second bulge loop is fixed to be set up on the drill bushing inner wall of first bulge loop below along the axis of sliding sleeve, and the second bulge loop can restrict first bulge loop in the decline.
Preferably, the sampling device further comprises a sloped rail; the inclined guide rail is respectively corresponding to the blade and the pressurizing sheet, the inclined guide rail is inclined to the axis direction of the sliding sleeve from top to bottom, one end of the blade is in sliding fit with the inclined guide rail, one end of the pressurizing sheet is in sliding fit with the inclined guide rail, and the inclined guide rail corresponding to the blade and the pressurizing sheet is respectively used for guiding the blade and the pressurizing sheet to stretch out and draw back.
Preferably, the sampling device further comprises a buffer device, wherein the buffer device comprises an extension rod and a second spring; the extension rod is fixedly arranged at the top of the accommodating bin along the axis of the accommodating bin, penetrates through and is arranged on the top plate in a sliding manner, and a second gap is reserved between the accommodating bin and the top plate; the second spring is disposed in the second gap along the axis of the extension rod.
Preferably, the buffer device further comprises an extension sleeve, a clamping block and a third spring; the extension sleeve is fixedly arranged at the lower part of the top plate along the axis of the top plate, the extension sleeve is sleeved at the periphery of the extension rod, the extension sleeve is in sliding fit with the extension rod, and the side wall of the extension tube is provided with a clamping groove; the side wall of the extension rod is provided with a groove along the radial direction of the extension rod, the clamping block is arranged in the groove in a sliding manner along the length direction of the groove, and a third gap is reserved between the clamping block and the bottom of the groove; the third spring is disposed in the third gap.
Preferably, the buffer device further comprises a third air pump; the third air pump is fixedly arranged on the extension rod and is communicated with the groove.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the shell, the drill bit, the drill bushing, the blade, the limiting device, the driving device, the pushing rod, the air supply device, the sliding sleeve and the accommodating bin are arranged, when sampling is carried out, the driving device drives the drill bushing to rotate, the drill bushing and the shell are fixedly connected, so that the shell and the drill bushing synchronously rotate, the drill bit arranged at the bottom of the drill bushing synchronously rotates, meanwhile, the lifting device arranged at the upper part of the top plate gradually drives the top plate to descend, so that rock gradually slides into the annular gap along with the drilling of the drill bit and the shell, after the core sample to be sampled is completely slid into the annular gap, the lifting device stops descending, the core sample is disconnected with the rock body at the moment, the root of the core sample is required to be disconnected with the rock body, the air supply device starts to supply air to the drill bushing, the pushing rod firstly slides by air, the pushing rod gradually pushes out the blade positioned in the drill bit, the driving device drives the blade to rotate, the root of the core sample is separated from the rock body, the bottom of the core sample is ensured to slide along with the drill bit, the integrity of the lower end face of the core sample is ensured to be continuously slid along with the sliding sleeve, the core sample is also prevented from sliding along with the annular gap, and the sliding sleeve is prevented from contacting with the annular gap, and the core sample can not slide along with the annular gap, and the core sample can be easily contacted with the limiting device.
Drawings
Fig. 1 is a perspective view of a rock-soil core drill capable of stable coring.
Fig. 2 is a side view of a rock-soil core drill bit capable of stable coring.
FIG. 3 is a schematic cross-sectional view of the earth coring bit of FIG. 2 at A-A that is capable of stable coring.
Fig. 4 is an enlarged partial schematic view of the rock-soil core bit at B of fig. 3 that is capable of stable coring.
Fig. 5 is an enlarged partial schematic view of the rock-soil core bit at C of fig. 3, which is capable of stable coring.
Fig. 6 is a partially enlarged schematic illustration of a rock-soil core bit capable of stable coring at D in fig. 3.
Fig. 7 is an enlarged partial schematic view of the earth coring bit of fig. 3 at E that is capable of stabilizing the coring.
Fig. 8 is a perspective view of a stabilized coring bit with the outer casing removed.
Fig. 9 is a perspective view of a stabilized coring bit with the housing and cushioning device removed.
FIG. 10 is a perspective view of a stabilized coring bit with the sliding sleeve, housing and cushioning device removed.
The reference numerals in the figures are:
1-a top plate; 2-sampling means; 21-a housing; 22-a drill bit; 221-drill sleeve; 222-blade; 223-disconnecting means; 2231-a second air pump; 2232-pressure tank; 2233-connecting tube; 2234-pressing the tablet; 23-limiting devices; 231-limit claws; 232-a limit groove; 24-driving means; 241-a rotary drive; 242-gear; 243-tooth ring; 25-pushing rod; 251-an air supply device; 2511—a first air pump; 2512—a first spring; 2513—a first collar; 2514-a second collar; 252-sliding sleeve; 253-inclined rail; 26-a containment bin; 27-a buffer device; 271-an extension rod; 272-a second spring; 273-extending sleeve; 274-a snap block; 275-a third spring; 276-third air pump.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1-3 and 7: a rock-soil core drill capable of stably coring comprises a top plate 1, a sampling device 2 and a lifting device; the sampling device 2 comprises a shell 21, a drill bit 22, a drill bushing 221, a blade 222, a limiting device 23, a driving device 24, a pushing rod 25, an air supply device 251, a sliding sleeve 252 and a containing bin 26; the top plate 1 is of a circular structure, and the shell 21 is rotatably arranged below the top plate 1 along the axis of the top plate 1; the drill bushing 221 is fixedly arranged on the shell 21 along the axis of the shell 21 in a penetrating way, and an annular gap is reserved between the outer side of the drill bushing 221 and the inner wall of the shell 21 and is used for storing a core sample; the drill bit 22 is fixedly arranged at the lower part of the drill bushing 221 along the axis of the drill bushing 221; blades 222 are slidably disposed on bit 22 in a radial direction of bit 22; the sliding sleeve 252 is arranged in the drill sleeve 221 in a sliding manner along the axis of the drill sleeve 221; the pushing rod 25 is arranged in the sliding sleeve 252 in a sliding way along the axis of the sliding sleeve 252; the limiting device 23 is rotatably arranged on the side wall of the drill bushing 221, one end of the limiting device 23 is hinged on the side wall of the sliding sleeve 252, the sliding sleeve 252 can drive the limiting device 23 to rotate after sliding, and the limiting device 23 limits a core sample positioned in the annular gap; the receiving bin 26 is provided at an upper portion of the drill bushing 221; the driving device 24 is arranged at the upper part of the accommodating bin 26, one end of the driving device 24 is connected with the drill bushing 221, and the driving device 24 drives the drill bushing 221 to rotate; the air supply device 251 is provided in the receiving bin 26, and the air supply device 251 can supply air to the upper portion of the drill bushing 221 and cause the push rod 25 to slide prior to the limiting device 23.
The core sample to be sampled is in a ring structure, because the core sample is stored in the annular gap between the drill bushing 221 and the shell 21 during sampling, the shape of the core sample is the same as that of the annular gap, the length of the annular gap corresponds to the descending distance of the lifting device, the length of the annular gap is fixed, the entering amount of the core sample in the annular gap can be judged through the descending distance of the lifting device, during sampling, the driving device 24 drives the drill bushing 221 to rotate, because the drill bushing 221 and the shell 21 are fixedly connected, the shell 21 and the drill bushing 221 synchronously rotate, the drill bit 22 arranged at the bottom of the drill bushing 221 synchronously rotates, meanwhile, the lifting device arranged at the upper part of the top plate 1 gradually drives the top plate 1 to descend, so that rock gradually slides into the annular gap along with the drilling of the drill bit 22 and the shell 21, when the core sample to be sampled slides into the annular gap, the lifting device stops descending, the root of the core sample is still connected with the rock body at the moment, the core sample is disconnected with the rock body to be taken out smoothly, the air supply device 251 starts to supply air to the drill sleeve 221, the push rod 25 is pushed by air to slide first, the push rod 25 pushes the blade 222 in the drill bit 22 gradually, the driving device 24 drives the blade 222 to rotate through the drill bit 22, the blade 222 cuts the root of the core sample, the bottom of the core sample is separated from the rock body, the sliding sleeve 252 also slides along the axis of the drill sleeve 221 along with the continuous air supply of the air supply device 251, the sliding sleeve 252 drives the limiting device 23 to rotate, one end of the limiting device 23 far away from the sliding sleeve 252 contacts with the core sample, the limiting device 23 clamps the inner wall of the core sample, so that the core sample cannot easily slip from the annular gap, and the extended blade 222 can also provide a certain supporting effect for the core sample, preventing the core sample from slipping from the annular gap.
Referring to fig. 3 and 10: the limiting device 23 comprises a limiting claw 231 and a limiting groove 232; one end of the limiting claw 231 is hinged with the side wall of the sliding sleeve 252, and the limiting claw 231 is inclined downwards; the limiting groove 232 is formed in the limiting claw 231 along the length direction of the limiting claw 231, a through groove is formed in the side wall of the drill bushing 221, and a first hinge post is arranged on the through groove and is in sliding fit with the limiting groove 232.
When the sliding sleeve 252 slides under the pushing of the gas supply device 251, the sliding sleeve 252 drives the limit claw 231 to rotate, as the limit groove 232 is formed in the limit claw 231, the through groove is formed in the side wall of the drill sleeve 221, and the first hinge post is in sliding fit with the limit groove 232, so that when the sliding sleeve 252 slides, the first hinge post can slide in the limit groove 232, the first hinge post drives the limit claw 231 to rotate through the limit groove 232, the limit claw 231 which is in a downward inclination gradually rotates to a horizontal state, and the limit claw 231 extrudes a core sample in the rotating process, so that the core sample can be prevented from falling off.
Referring to fig. 1, 8 and 9: the drive means 24 comprises a rotary drive 241, a gear 242 and a toothed ring 243; the toothed ring 243 is fixedly arranged on the drill bushing 221 along the axis of the drill bushing 221; the gear 242 is rotatably arranged at one side of the toothed ring 243 along the axis of the drill bushing 221, the gear 242 and the toothed ring 243 are engaged with each other, and the diameter of the gear 242 is smaller than that of the toothed ring 243; the rotary driver 241 is fixedly arranged in the accommodating bin 26, and the output end of the rotary driver 241 is fixedly connected with the gear 242 and can drive the gear 242 to rotate.
When the casing 21 and the drill bit 22 need to be driven to rotate, the rotary driver 241 is started, and the rotary driver 241 drives the toothed ring 243 to rotate through the gear 242, and since the toothed ring 243 is fixedly connected with the drill bushing 221 and the drill bushing 221 is fixedly connected with the casing 21, the casing 21 can also rotate synchronously when the drill bushing 221 rotates, and the drill bit 22 arranged at the bottom of the drill bushing 221 can also rotate synchronously.
Referring to fig. 3, 5 and 9: the air supply device 251 includes a first air pump 2511 and a first spring 2512; the first air pump 2511 is provided at the upper portion of the housing bin 26; the bottom end face of the accommodating bin 26 is coplanar with the upper end face of the drill bushing 221, a first gap is reserved between the bottom of the accommodating bin 26 and the upper portion of the sliding sleeve 252, the first spring 2512 is arranged in the first gap along the axis of the sliding sleeve 252, and two ends of the first spring 2512 are fixedly connected with the accommodating bin 26 and the sliding sleeve 252 respectively.
When the first air pump 2511 supplies air to the drill bushing 221, since the first spring 2512 is connected to the upper portion of the sliding sleeve 252, the sliding sleeve 252 does not move temporarily under the action of the tension of the first spring 2512, the pushing rod 25 is not pulled by external force, and slides first under the pushing of the air, the pushing rod 25 can gradually push out the blade 222, and then with the increase of pressure, the tension of the first spring 2512 is overcome by the pressure of the air, so that the sliding sleeve 252 slides, and the limiting device 23 hinged with the sliding sleeve 252 rotates.
Referring to fig. 3 and 9: the sampling device 2 further includes a cutoff device 223, and the cutoff device 223 includes a second air pump 2231, a pressure tank 2232, a connection pipe 2233, and a pressurizing sheet 2234; the second air pump 2231 is disposed within the receiving bin 26; the pressure tank 2232 is fixedly arranged on the output end of the second air pump 2231; the pressurizing plate 2234 is slidably disposed in the drill 22 along the radial direction of the drill 22, the pressurizing plate 2234 is in the same plane as the blade 222, and the pressurizing plate 2234 can discharge air in the pressure tank 2232; both ends of the connection pipe 2233 are connected to the pressure tank 2232 and the pressurizing sheet 2234, respectively.
When the blade 222 cuts the root of the core sample, the root of the core sample cannot be completely cut, if the core sample is too firm, the blade 222 cannot drive the core sample to be separated when the lifting device drives the top plate 1 to lift, and if the lifting force is too large, the blade 222 is damaged, in order to ensure that the core sample is completely broken when being driven by the lifting device to lift, the second air pump 2231 can inflate the pressure tank 2232, the pressure in the pressure tank 2232 is continuously increased, after the specified pressure is reached, the pressure tank 2232 pumps high-pressure air into the position of the pressure plate 2234 through the connecting pipe 2233, the pressure plate 2234 can discharge air in the pressure tank 2232, the root of the core sample is completely broken under the action of the pressure air, and the condition that the blade 222 is not damaged in the lifting process is ensured.
Referring to fig. 3 and 5: the air supply 251 further includes a first collar 2513 and a second collar 2514; the first convex ring 2513 is fixedly arranged on the outer wall of the upper side of the sliding sleeve 252 along the axis of the sliding sleeve 252; the second collar 2514 is fixedly disposed on the inner wall of the drill bushing 221 below the first collar 2513 along the axis of the sliding sleeve 252, and the second collar 2514 can limit the first collar 2513 in the descending state.
When the gas supply device 251 supplies gas to the drill bushing 221, the sliding sleeve 252 slides in the drill bushing 221, the sliding sleeve 252 drives the first convex ring 2513 to synchronously slide, and when the first convex ring 2513 moves to the upper part of the second convex ring 2514 and contacts with the upper part of the second convex ring 2514, the second convex ring 2514 limits the first convex ring 2513, so that the sliding sleeve 252 is prevented from slipping.
Referring to fig. 7: the sampling device 2 further comprises a tilting rail 253; the inclined rails 253 correspond to the blades 222 and the pressurizing plates 2234, the inclined rails 253 incline in the axial direction of the sliding sleeve 252 from top to bottom, one end of the blade 222 is in sliding fit with the inclined rails 253, one end of the pressurizing plates 2234 is in sliding fit with the inclined rails 253, and the inclined rails 253 corresponding to the blades 222 and the pressurizing plates 2234 are used for guiding the expansion and contraction of the blades 222 and the pressurizing plates 2234.
The blade 222 and the pressurizing sheet 2234 can be stably extended and contracted by the guide of the inclined guide rail 253.
Referring to fig. 1 and 2: the sampling device 2 further includes a buffer device 27, the buffer device 27 including an extension rod 271 and a second spring 272; the extension rod 271 is fixedly arranged at the top of the accommodating bin 26 along the axis of the accommodating bin 26, the extension rod 271 is arranged on the top plate 1 in a penetrating and sliding manner, and a second gap is reserved between the accommodating bin 26 and the top plate 1; the second spring 272 is disposed in the second gap along the axis of the extension rod 271.
Since the breaking device 223 generates an upward reaction force when breaking the root of the core sample, in order to reduce the damage of the reaction force to the lifting device, a second spring 272 is provided between the top plate 1 and the accommodating chamber 26, and the second spring 272 can slow down the reaction force when the accommodating chamber 26 is lifted up by the reaction force.
Referring to fig. 4: the buffer 27 further comprises an extension sleeve 273, a snap block 274 and a third spring 275; the extension sleeve 273 is fixedly arranged at the lower part of the top plate 1 along the axis of the top plate 1, the extension sleeve 273 is sleeved on the periphery of the extension rod 271, the extension sleeve 273 is in sliding fit with the extension rod 271, and the side wall of the extension tube is provided with a clamping groove; grooves are formed in the side walls of the extension rods 271 along the radial direction of the extension rods 271, clamping blocks 274 are slidably arranged in the grooves along the length direction of the grooves, and a third gap is reserved between the clamping blocks 274 and the bottoms of the grooves; the third spring 275 is disposed in the third gap.
When the holding bin 26 breaks off the root of the core sample at the breaking device 223, the extension rod 271 rises synchronously with the holding bin 26, the second spring 272 compresses, the clamping block 274 is clamped into the clamping groove by the elastic force of the third spring 275, the clamping block 274 cannot be separated from the clamping groove due to the weight of the holding bin 26 and all the components below under the action of no external force, and therefore after the holding bin 26 rises and the clamping block 274 is clamped with the clamping groove, the holding bin 26 cannot descend, and the core sample in the annular gap is completely separated from the rock body.
Referring to fig. 4: the buffer device 27 further includes a third air pump 276; a third air pump 276 is fixedly provided on the extension rod 271, and the third air pump 276 communicates with the recess.
By providing the third air pump 276, when the drill bit 22 and the housing 21 drill the rock, the reaction force of the rock acts on the extension rod 271, the thrust of the extension rod 271 can cause the extension rod 271 and the extension sleeve 273 to slide relatively, the clamping block 274 is clamped with the clamping groove, and the air in the groove is pumped out by the third air pump 276, so that the extension rod 271 is reset.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. A rock-soil core drill capable of stably coring comprises a top plate (1), a sampling device (2) and a lifting device;
the sampling device (2) is characterized by comprising a shell (21), a drill bit (22), a drill sleeve (221), a blade (222), a limiting device (23), a driving device (24), a pushing rod (25), an air supply device, a sliding sleeve (252) and a containing bin (26);
the top plate (1) is of a circular structure, and the shell (21) is rotatably arranged below the top plate (1) along the axis of the top plate (1);
the drill sleeve (221) is fixedly arranged on the shell (21) in a penetrating manner along the axis of the shell (21), an annular gap is reserved between the outer side of the drill sleeve (221) and the inner wall of the shell (21), and the annular gap is used for storing a core sample;
the drill bit (22) is fixedly arranged at the lower part of the drill sleeve (221) along the axis of the drill sleeve (221);
the blade (222) is arranged on the drill bit (22) in a sliding manner along the radial direction of the drill bit (22);
the sliding sleeve (252) is arranged in the drill sleeve (221) in a sliding manner along the axis of the drill sleeve (221);
the pushing rod (25) is arranged in the sliding sleeve (252) in a sliding way along the axis of the sliding sleeve (252);
the limiting device (23) is rotatably arranged on the side wall of the drill bushing (221), one end of the limiting device (23) is hinged to the side wall of the sliding sleeve (252), the sliding sleeve (252) can drive the limiting device (23) to rotate after sliding, and the limiting device (23) limits a core sample positioned in the annular gap;
the accommodating bin (26) is arranged at the upper part of the drill sleeve (221);
the driving device (24) is arranged at the upper part of the accommodating bin (26), one end of the driving device (24) is connected with the drill bushing (221), and the driving device (24) drives the drill bushing (221) to rotate;
the air supply device is arranged in the accommodating bin (26), and can supply air to the upper part of the drill bushing (221) and enable the pushing rod (25) to slide before the limiting device (23);
the limiting device (23) comprises a limiting claw (231) and a limiting groove (232);
one end of the limiting claw (231) is hinged with the side wall of the sliding sleeve (252), and the limiting claw (231) is inclined downwards;
the limiting groove (232) is formed in the limiting claw (231) along the length direction of the limiting claw (231), a through groove is formed in the side wall of the drill bushing (221), a first hinge post is arranged on the through groove, and the first hinge post is in sliding fit with the limiting groove (232);
the air supply device comprises a first air pump (2511) and a first spring (2512);
the first air pump (2511) is arranged at the upper part of the accommodating bin (26);
the bottom end surface of the accommodating bin (26) is coplanar with the upper end surface of the drill bushing (221), a first gap is reserved between the bottom of the accommodating bin (26) and the upper part of the sliding sleeve (252), a first spring (2512) is arranged in the first gap along the axis of the sliding sleeve (252), and two ends of the first spring (2512) are fixedly connected with the accommodating bin (26) and the sliding sleeve (252) respectively;
the sampling device (2) further comprises a disconnecting device (223), and the disconnecting device (223) comprises a second air pump (2231), a pressure tank (2232), a connecting pipe (2233) and a pressurizing sheet (2234);
the second air pump (2231) is arranged in the accommodating bin (26);
the pressure tank (2232) is fixedly arranged at the output end of the second air pump (2231);
the pressurizing sheet (2234) is arranged in the drill bit (22) in a sliding manner along the radial direction of the drill bit (22), the pressurizing sheet (2234) and the blade (222) are positioned on the same plane, and the pressurizing sheet (2234) can discharge air in the pressure tank (2232);
both ends of the connecting pipe (2233) are respectively connected with the pressure tank (2232) and the pressurizing sheet (2234);
the air supply device further comprises a first convex ring (2513) and a second convex ring (2514);
the first convex ring (2513) is fixedly arranged on the outer wall of the upper side of the sliding sleeve (252) along the axis of the sliding sleeve (252);
the second convex ring (2514) is fixedly arranged on the inner wall of the drill bushing (221) below the first convex ring (2513) along the axis of the sliding sleeve (252), and the second convex ring (2514) can limit the first convex ring (2513) in descending.
2. A rock-soil coring bit capable of stable coring as in claim 1 wherein the drive means (24) comprises a rotary drive (241), a gear (242) and a toothed ring (243);
the toothed ring (243) is fixedly arranged on the drill sleeve (221) along the axis of the drill sleeve (221);
the gear (242) is rotatably arranged on one side of the toothed ring (243) along the axis of the drill bushing (221), the gear (242) is meshed with the toothed ring (243), and the diameter of the gear (242) is smaller than that of the toothed ring (243);
the rotary driver (241) is fixedly arranged in the accommodating bin (26), and the output end of the rotary driver (241) is fixedly connected with the gear (242) and can drive the gear (242) to rotate.
3. A rock-soil coring bit capable of stable coring as set forth in claim 2 wherein the sampling device (2) further comprises an inclined guide rail (253);
the inclined guide rail (253) corresponds to the blade (222) and the pressurizing sheet (2234), the inclined guide rail (253) inclines to the axial direction of the sliding sleeve (252) from top to bottom, one end of the blade (222) is in sliding fit with the inclined guide rail (253), one end of the pressurizing sheet (2234) is in sliding fit with the inclined guide rail (253), and the inclined guide rail (253) corresponding to the blade (222) and the pressurizing sheet (2234) is used for guiding the blade (222) and the pressurizing sheet (2234) to stretch.
4. A rock-soil coring bit capable of stable coring as set forth in claim 3 wherein the sampling device (2) further comprises a buffering device (27), the buffering device (27) comprising an extension rod (271) and a second spring (272);
the extension rod (271) is fixedly arranged at the top of the accommodating bin (26) along the axis of the accommodating bin (26), the extension rod (271) is arranged on the top plate (1) in a penetrating and sliding manner, and a second gap is reserved between the accommodating bin (26) and the top plate (1);
a second spring (272) is disposed in the second gap along the axis of the extension rod (271).
5. A rock-soil coring bit capable of stable coring as set forth in claim 4 wherein the buffering means (27) further comprises an extension sleeve (273), a snap block (274) and a third spring (275);
the extension sleeve (273) is fixedly arranged at the lower part of the top plate (1) along the axis of the top plate (1), the extension sleeve (273) is sleeved on the periphery of the extension rod (271), the extension sleeve (273) is in sliding fit with the extension rod (271), and the side wall of the extension tube is provided with a clamping groove;
a groove is formed in the side wall of the extension rod (271) along the radial direction of the extension rod (271), a clamping block (274) is slidably arranged in the groove along the length direction of the groove, and a third gap is reserved between the clamping block (274) and the bottom of the groove;
a third spring (275) is disposed within the third gap.
6. A rock-soil coring bit as set forth in claim 5, wherein the buffering means (27) further comprises a third air pump (276);
the third air pump (276) is fixedly arranged on the extension rod (271), and the third air pump (276) is communicated with the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311014666.8A CN116752919B (en) | 2023-08-14 | 2023-08-14 | Rock and soil core drill bit capable of stably coring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311014666.8A CN116752919B (en) | 2023-08-14 | 2023-08-14 | Rock and soil core drill bit capable of stably coring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116752919A CN116752919A (en) | 2023-09-15 |
| CN116752919B true CN116752919B (en) | 2023-10-13 |
Family
ID=87955460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311014666.8A Active CN116752919B (en) | 2023-08-14 | 2023-08-14 | Rock and soil core drill bit capable of stably coring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116752919B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118029928A (en) * | 2024-02-22 | 2024-05-14 | 保利澳瑞凯(江苏)矿山机械有限公司 | Drilling device for geological prospecting |
| CN117780282B (en) * | 2024-02-27 | 2024-04-30 | 山西省第三地质工程勘察院有限公司 | Geological investigation coring device and coring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB693379A (en) * | 1950-10-19 | 1953-07-01 | Anglo Iranian Oil Co Ltd | Improvements relating to pressure core takers |
| DE3933329A1 (en) * | 1988-10-24 | 1990-04-26 | Ost Bau Montage | Drill core extraction grab - has claws on arms with parallel links to central actuating rod |
| RU2159840C1 (en) * | 1999-03-15 | 2000-11-27 | Тюменский научно-исследовательский и проектный институт природного газа и газовых технологий | Core gripper |
| JP2010174466A (en) * | 2009-01-28 | 2010-08-12 | Akema Boring:Kk | Core sampling device and core sampling method for wire line, double tube, core barrel, and core ring |
| CN111764855A (en) * | 2020-06-03 | 2020-10-13 | 中煤科工集团西安研究院有限公司 | Near-horizontal continuous directional coring advanced geological exploration system and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10577879B2 (en) * | 2017-11-27 | 2020-03-03 | Chevron U.S.A. Inc. | Subterranean coring assemblies |
-
2023
- 2023-08-14 CN CN202311014666.8A patent/CN116752919B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB693379A (en) * | 1950-10-19 | 1953-07-01 | Anglo Iranian Oil Co Ltd | Improvements relating to pressure core takers |
| DE3933329A1 (en) * | 1988-10-24 | 1990-04-26 | Ost Bau Montage | Drill core extraction grab - has claws on arms with parallel links to central actuating rod |
| RU2159840C1 (en) * | 1999-03-15 | 2000-11-27 | Тюменский научно-исследовательский и проектный институт природного газа и газовых технологий | Core gripper |
| JP2010174466A (en) * | 2009-01-28 | 2010-08-12 | Akema Boring:Kk | Core sampling device and core sampling method for wire line, double tube, core barrel, and core ring |
| CN111764855A (en) * | 2020-06-03 | 2020-10-13 | 中煤科工集团西安研究院有限公司 | Near-horizontal continuous directional coring advanced geological exploration system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116752919A (en) | 2023-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116752919B (en) | Rock and soil core drill bit capable of stably coring | |
| CN1115993A (en) | System for in situ replacement of cutting means for a ground drill | |
| WO2020034643A1 (en) | Drilling process of pressure-preserving cable core drilling machine for subsea natural gas hydrates | |
| CA2210442C (en) | A cutter head, boring jig and device and process for sea bottom boring | |
| CN109138891B (en) | Continuous oil pipe external cutting and fishing integrated device | |
| CN115877442B (en) | Fixing device for deep hole seismometer | |
| CN217930892U (en) | Concrete drilling coring equipment | |
| CN116296559A (en) | Rock stratum sample collection tool convenient to store and used for mine field | |
| CN215985273U (en) | Ground test sampling device | |
| CN115898311A (en) | MWD (measurement while drilling) open hole fishing tool and using method | |
| CN216342033U (en) | Oil field is with removable formula bridging plug that bores and placer | |
| CN111794699A (en) | Stable drilling equipment capable of extending drilling | |
| CN110242235B (en) | Major diameter broken core extraction element | |
| CN210937976U (en) | Special extracting tool of packer hydraulic anchor | |
| CN211058765U (en) | Polyurethane foam plugging device | |
| CN214444499U (en) | Oil blocking sleeve turning device | |
| CN214303708U (en) | Hand-push frame base type emulsion drilling machine support | |
| CN217179958U (en) | A coring device for experimental detection of cement mixing pile | |
| CN114776267B (en) | Separated underground throttle capable of being sealed in multiple times | |
| CN213869746U (en) | Hand-push frame base type emulsion drilling machine | |
| CN216197898U (en) | Horizontal well rock debris purification drilling tool | |
| CN220576061U (en) | Flexible composite pipe cutting machine | |
| CN217620375U (en) | Dismounting device of lower TC bearing movable sleeve | |
| CN220815709U (en) | Quick withdrawing support for fully-mechanized coal mining face | |
| CN214463989U (en) | Automatic drill rod loading and unloading device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |