CN114235482B - Drilling coring equipment and drilling coring method for geological exploration - Google Patents
Drilling coring equipment and drilling coring method for geological exploration Download PDFInfo
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- CN114235482B CN114235482B CN202111640043.2A CN202111640043A CN114235482B CN 114235482 B CN114235482 B CN 114235482B CN 202111640043 A CN202111640043 A CN 202111640043A CN 114235482 B CN114235482 B CN 114235482B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention provides a drilling coring device and a drilling coring method for geological exploration, which belong to the technical field of drilling coring and comprise a device body and a coring barrel, wherein a chute is uniformly arranged in the coring barrel, arc-shaped strips are embedded in the chute in a flat manner, an end control seat is connected in a sliding manner in the coring barrel, the arc-shaped strips are connected to one side of the end control seat, which is close to the barrel opening of the coring barrel, the end of the arc-shaped strips, which is far away from the end control seat, is connected with a limiting piece, one side of the end control seat, which is far away from the barrel opening of the coring barrel, is connected with a connecting rope and a splicing barrel cleaning assembly, and the device body is connected with an initial limiting mechanism. The core drilling equipment and the core drilling method for geological exploration effectively improve the core drilling efficiency and the integrity of the core body, and have the advantages of high core drilling quality and high core body taking quality.
Description
Technical Field
The invention relates to the technical field of core drilling, in particular to core drilling equipment and a core drilling method for geological exploration.
Background
The core drilling equipment mainly utilizes a core barrel with a drill bit to do annular cutting motion on a basal body to generate a columnar core body and take out the columnar core body, is commonly used for pavement core experiments, geological survey and other aspects, particularly in geological survey, the distribution of stratum structures in corresponding areas and geological conditions such as geomorphic and the like can be accurately known through the taken out core body, and therefore the integrity of the core body is taken out to be one of important factors affecting the accuracy of geological survey results.
At present, the process of drilling and coring often occurs that the core body cannot be smoothly taken out due to overlarge friction force between the core body and the coring barrel, so that the difficulty of the coring process is increased, the coring efficiency is reduced, and the integrity of the core body is easily damaged in the coring process.
The Chinese patent publication No. CN111119774A discloses a concrete core drilling machine, and a scheme for improving the core drilling efficiency is proposed in the patent: the driving assembly drives the knocking rod to move along the direction close to or far away from the coring bit, one end of the knocking rod provided with the buffer piece can repeatedly knock the outer wall of the coring bit to realize the purpose of shaking off the concrete core from the inner cavity of the coring bit, the buffer piece is arranged in the scheme, but the purpose of shaking off the core is achieved by knocking, the stability of bit connection is affected due to the knocking force generated in the repeated knocking process, the use of the bit is further affected, and the scheme is not suitable for drilling and coring for geology with not very high cementing degree, and the integrity of the core is easily damaged in the knocking and shaking coring process.
Disclosure of Invention
In order to solve the technical problems, the invention provides a drilling coring device and a drilling coring method for geological exploration, which are achieved by the following specific technical means: the device comprises a device body and a coring barrel, wherein the coring barrel comprises a barrel body and a drill bit, the drill bit is connected to the barrel opening of the barrel body, a chute is uniformly formed in the coring barrel, an arc-shaped strip is embedded in the chute, the arc-shaped strip is in sliding connection with the chute, the chute penetrates through the barrel opening of the coring barrel, the chute and the drill bit are distributed in a staggered manner, the arc-shaped strip is embedded in the chute in a sliding manner in the direction of the barrel opening and is spliced with the inner side wall of the coring barrel to form a finished cylindrical barrel wall, an end control seat is connected in the coring barrel in a sliding manner, the arc-shaped strip is connected to one side, close to the barrel opening of the coring barrel, of the end control seat, a limiting piece is connected to one end, far away from the end control seat, of the coring barrel opening, of the end control seat is connected with a connecting rope and a spliced barrel cleaning assembly, the connecting rope extends to the outside of the coring barrel to be connected with a retraction control mechanism for uniformly controlling the connecting rope, and the device body is connected with an initial limiting mechanism;
the splicing bucket cleaning assembly comprises an arc filling stop block and an arc scraping piece which are sequentially connected in a staggered manner, the arc filling stop block corresponds to the sliding grooves respectively, the arc scraping piece corresponds to the inner side of the coring bucket between the adjacent sliding grooves respectively, the inner side wall of the coring bucket is cleaned synchronously in the process that the core body is taken out from the coring bucket, and meanwhile, the sliding grooves can be effectively prevented from being influenced by the insertion of arc strips due to the entry of foreign matters;
the initial limiting mechanism comprises a positioning ring seat, the positioning ring seat is connected with a following ring seat in a sliding manner, a fixed ring is rotationally connected to the following ring seat, arc-shaped adjusting blocks are uniformly inserted on the fixed ring, screw adjusting pieces are connected to the arc-shaped adjusting blocks, unified adjusting rings for uniformly controlling the rotation of the screw adjusting pieces are arranged on the fixed ring, transverse gears are connected to the unified adjusting rings in a meshed manner, and detection limiting pieces for limiting the rotation of the unified adjusting rings are connected to the positioning ring seat.
The preferred technical scheme is as follows: the arc-shaped strip piece is rotationally connected with the end control seat, and a sliding limiting block is uniformly fixed on the convex cambered surface of the arc-shaped strip piece.
The preferred technical scheme II is as follows: the limiting piece is an arc-shaped block, one side, close to the outer side wall of the coring barrel, of the limiting piece is rotationally connected with an L-shaped magnetic center rod, the L-shaped magnetic center rod comprises a cross rod and a vertical rod which are rotationally connected together, the cross rod is flatly embedded on a barrel opening of the coring barrel, the vertical rod is flatly embedded on the outer side wall of the coring barrel, the other end of the cross rod is rotationally connected to the L-shaped magnetic center rod and is embedded on the coring barrel, and in the coring process, arc-shaped strips can conveniently slide outwards from inside to outside of a chute.
The preferred technical scheme III: the connecting rope and the end control seat are connected with a hook component, the hook component comprises an annular hook seat and a hook piece, the annular hook seat and the hook piece are respectively and correspondingly connected to the end control seat and the connecting rope, and the hook piece corresponds to a barrel opening of the coring barrel, so that the hook piece can be convenient for connecting the connecting rope with the end control seat.
The preferred technical scheme is as follows: the winding and unwinding control mechanism comprises a plurality of positioning wheels, a plurality of guide wheels and a plurality of winding drums, the connecting ropes are sequentially connected to the winding drums through the corresponding positioning wheels and the guide wheels, a driving ring for uniformly controlling the winding drums to wind the connecting ropes is connected to the core drum, and a total driving gear is connected to the driving ring in a meshed mode.
The preferable technical scheme is as follows: the winding disc comprises an upper and lower symmetrical limiting plate and a middle winding column, wherein the upper and lower symmetrical limiting plates are respectively positioned at two ends of the middle winding column, the upper and lower symmetrical limiting plates are fixedly connected to the coring barrel, the middle winding column is rotationally connected between the upper and lower symmetrical limiting plates, the middle winding column extends out of the upper and lower symmetrical limiting plates and is in meshed connection with the driving ring through a gear, and the middle winding column is rotationally connected to the coring barrel.
A preferred technical scheme is as follows: the automatic supplementary subassembly is connected with on the connecting rope outside the coring barrel, and automatic supplementary subassembly is including supporting connecting seat, the horizontal slide bar and the elasticity piece that resets that the tip has the ring, and supporting connecting seat connects on the coring barrel, horizontal slide bar sliding connection is on supporting connecting seat, and connecting rope alternates in the ring, and elasticity piece symmetry connection that resets is between supporting connecting seat and horizontal slide bar.
A method of coring in a borehole for geological exploration, the method being accomplished with a coring apparatus for geological exploration, comprising the steps of:
s1, preparation before drilling, namely placing a drilling coring device at a drilling coring position, and positioning the end part of a coring barrel, which is close to the coring position, by utilizing an initial limiting mechanism;
s2, drilling, namely starting a driving device to drive a coring barrel to drill to a coring position until the core drilling work is completed, and then taking out a core body through the coring barrel, wherein in the process of rotating the coring barrel, when the coring barrel reaches a preset rotating position, an initial limiting mechanism automatically stops limiting the coring barrel, so that the quality of the coring barrel 2 is prevented from being influenced by long-time limiting;
and S3, coring, namely taking out the core body from the coring barrel through the arc-shaped strip piece.
The invention has the following beneficial effects:
1. according to the drilling coring equipment and the drilling coring method for geological exploration, through the combined action of the equipment body, the coring barrel, the chute, the arc-shaped strip, the end control seat and the limiting piece, the cylindrical cover with high degree of adhesion with the core body is formed, the core body is limited in the cylindrical cover, the core body moves along with the movement of the cylindrical cover, the stability of the core body is improved, the coring difficulty is reduced, and the coring efficiency and the integrity of the core body are correspondingly improved.
2. According to the drilling coring equipment and the drilling coring method for geological exploration, through the combined action of the initial limiting mechanism, the screw rod adjusting piece, the unified adjusting ring, the transverse gear and the detection limiting piece, the situation that the coring barrel is deviated due to uneven ground or serious geological hardness difference in the initial drilling process can be effectively avoided, the accuracy of the drilling position of the coring barrel in the initial drilling process is improved, and the quality of drilling coring and the quality of taking out a core body are correspondingly improved.
3. This a drilling coring equipment and drilling coring method for geological exploration is through the combined action of concatenation clear bucket subassembly, tip control seat and spout, at the core by taking out the process of taking out in the core bucket, not only can be synchronous clear up the inside wall of taking out the core bucket, avoid inside wall attached with debris and influence follow-up drilling coring's work, but also can effectively prevent in the debris entering spout of clearance and influence the gliding smoothness degree of arc strip in the spout.
4. According to the drilling coring equipment and the drilling coring method for geological exploration, the arc-shaped strip is automatically tensioned in the core drilling process through the combined action of the connecting rope and the automatic supplementing component, so that the stability of the core drilling process and the integrity of the core body are improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is an enlarged view of the invention at a in fig. 1.
Fig. 3 is an enlarged view of the present invention at B in fig. 2.
Fig. 4 is a partial cross-sectional view of a coring barrel of the present invention.
Fig. 5 is an enlarged view of the present invention at C in fig. 4.
FIG. 6 is a schematic view of the partial structure of the coring barrel of the present invention.
Fig. 7 is a schematic structural view of an initial limiting mechanism of the present invention.
FIG. 8 is a schematic diagram of the connection relationship between the initial limiting mechanism and the screw adjusting member.
In the figure: 1. an equipment body; 2. coring barrel; 3. a chute; 4. arc-shaped strips; 5. an end control seat; 6. a limiting piece; 7. a connecting rope; 8. splicing a barrel cleaning component; 81. arc filling the stop block; 82. an arc-shaped scraping member; 9. a retraction control mechanism; 91. a positioning wheel; 92. a guide wheel; 93. a reel; 931. a limiting plate; 932. a middle winding column; 10. an initial limiting mechanism; 101. a positioning ring seat; 102. a follower ring seat; 103. a fixing ring; 104. an arc-shaped adjusting block; 11. a screw adjusting member; 12. a unified adjusting ring; 13. a transverse gear; 14. detecting the limiting piece; 15. a sliding limiting block; 16. an L-shaped magnetic center rod; 17. a hook assembly; 171. an annular hook seat; 172. a hook member; 18. a drive ring; 19. a total drive gear; 20. an automatic supplementing component; 201. supporting the connecting seat; 202. a horizontal slide bar; 203. an elastic reset piece.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, 2, 4 and 6, a drilling and coring device for geological exploration comprises a device body 1 and a coring barrel 2, wherein the coring barrel 2 comprises a barrel body and a drill bit, the drill bit is connected at the barrel opening of the barrel body, a chute 3 is uniformly arranged in the coring barrel 2, an arc-shaped strip 4 is flatly embedded in the chute 3, the arc-shaped strip 4 is in sliding connection with the chute 3, the chute 3 penetrates through the barrel opening of the coring barrel 2, the chute 3 and the drill bit are distributed in a staggered manner, the arc-shaped strip 4 is slidingly embedded in the chute 3 in the direction of the barrel opening and is spliced with the inner side wall of the coring barrel 2 to form a finished cylindrical barrel wall, an end control seat 5 is slidingly connected in the coring barrel 2, the arc-shaped strip 4 is rotationally connected to one side of the end control seat 5 close to the barrel opening of the coring barrel 2, a sliding limiting block 15 is uniformly arranged on a convex cambered surface of the arc-shaped strip 4 at a fixed point, the arc-shaped strip 4 in sliding is limited to ensure that the arc-shaped strip 4 slides stably along the sliding chute 3, one end of the arc-shaped strip 4 far away from the end control seat 5 is connected with a limiting piece 6, the limiting piece 6 is flatly embedded on the barrel mouth of the coring barrel 2, when a core is taken out from the coring barrel 2, the limiting piece 6 is pulled outwards, the arc-shaped strip 4 connected with the limiting piece is driven to slide outwards along the sliding chute 3 by the limiting piece 6, in the process of outwards sliding the arc-shaped strip 4, the arc-shaped strip and the end control seat 5 form a cylindrical cover with higher degree of adhesion with the core, the core is limited in the cylindrical cover, the core moves along with the movement of the cylindrical cover, the core is taken out from the end control seat 5 smoothly, and in the process of taking out, the area between the core and the inner side wall of the coring barrel 2 is reduced due to the contact area between the arc-shaped strip 4 and the core, and then effectively reduced the core by taking out in the coring barrel 2 its with core barrel 2 between frictional force, corresponding reduction the degree of difficulty that the core was taken out, and improved the speed of taking out, secondly carry out local fixed restriction to the core through arc strip 4 and tip control seat 5, the stability of core has been improved, can effectively reduce the core and take out the emergence of the in-process damage condition because of frictional force, the corresponding integrality that has improved the core, compared with prior art, the degree of difficulty of coring has been reduced, the efficiency of coring has been improved, the integrality of taking out the core has been effectively improved simultaneously.
One side of the end control seat 5 far away from the barrel opening of the coring barrel 2 is connected with a connecting rope 7 and a splicing barrel cleaning assembly 8, the connecting rope 7 extends out of the coring barrel 2 and is connected with a retraction control mechanism 9 for uniformly controlling the connecting rope 7, the retraction of the connecting rope 7 is uniformly controlled by the retraction control mechanism 9, the connecting rope 7 controls the sliding motion of the arc-shaped strip 4 in the retraction process,
referring to fig. 4 and 5, the spliced bucket assembly 8 includes an arc filling stop 81 and an arc scraping piece 82, which are sequentially connected in a staggered manner, the arc filling stop 81 is slidably inserted into the chute 3, the core is taken out from the coring bucket 2, the arc filling stop 81 slides in the chute 3 along with the end control seat 5, the end control seat 5 drives the arc scraping piece 82 to clean the part, which is not the chute 3, of the core bucket 2, in the cleaning process, the cleaning object cannot enter the chute 3 due to the blocking of the arc filling stop 81, and therefore, in the coring process, the inner side wall of the coring bucket 2 can be cleaned synchronously, the follow-up drilling coring work is prevented from being influenced due to the fact that the inner side wall is attached with sundries, the cleaning sundries can be effectively prevented from entering the chute 3 in the cleaning process, and the smoothness of sliding of the arc strip 4 in the chute 3 is influenced, and the arc scraping piece 82 is an arc storage bucket with a scraping port.
Referring to fig. 1, 7 and 8, an initial limiting mechanism 10 is connected to an apparatus body 1, the initial limiting mechanism 10 comprises a positioning ring seat 101, the positioning ring seat 101 automatically performs horizontal positioning through adjustment of levelness of the apparatus body 1, a following ring seat 102 is slidingly connected to the positioning ring seat 101, a fixed ring 103 is rotationally connected to the following ring seat 102, arc-shaped adjusting blocks 104 are uniformly inserted on the fixed ring 103, screw adjusting pieces 11 are connected to the arc-shaped adjusting blocks 104, a uniform adjusting ring 12 for uniformly controlling the rotation of the screw adjusting pieces 11 is arranged on the fixed ring 103, the screw adjusting pieces 11 comprise a threaded rod and a threaded sleeve, the threaded rod is fixedly connected to the arc-shaped adjusting blocks 104 and slidingly connected to the fixed ring 103, the threaded sleeve is in threaded sleeve connection with the threaded rod, the threaded sleeve is rotationally connected to the fixed ring 103, a transverse gear 13 is in meshed connection with the uniform adjusting ring 12, a bevel gear is sleeved on the screw sleeve, the unified regulating ring 12 is provided with a helical tooth surface meshed with a helical gear, the unified regulating ring 12 is rotated to drive the thread bushing to rotate, the positioning ring seat 101 is connected with a detection limiting piece 14 limiting the rotation of the unified regulating ring 12, the fixed ring 103 and the following ring seat 102 are provided with inserting grooves matched with the detection limiting piece 14, the unified regulating ring 12 is provided with limiting grooves corresponding to the detection limiting piece 14, before the coring barrel 2 starts to drill, the rotary transverse gear 13 drives the unified regulating ring 12 to rotate in the fixed ring 103, the unified regulating ring 12 synchronously drives the thread bushing to rotate in the rotating process, the thread bushing synchronously drives the arc regulating block 104 to move towards the direction of the coring barrel 2 along with the contact with the coring barrel 2 in the rotating process to regulate the position of the coring barrel 2, the coring barrel 2 is in a vertical state with the ground, then along with coring barrel 2 by the ground to the in-process that underground was bored, arc regulating block 104 rotates along with coring barrel 2's rotation, synchronous drive solid fixed ring 103 is rotating along with ring seat 102, and along with coring barrel 2's boring, along with ring seat 102 is last to the direction slip on ground on the locating ring seat 101, whole aforesaid process, it is spacing to coring barrel 2 continuously through arc regulating block 104, can effectively avoid coring barrel 2 and make coring barrel 2 take place the skew because of the circumstances such as ground unevenness or geological hardness differentiation are serious in the in-process that initially drills into, coring barrel 2 drilling position's precision has been improved, the corresponding quality that has improved drilling, after coring barrel 2 is smooth to creep into underground, ring seat 102 slides to the position of detecting limiter 14, along with ring seat 102 is last to the downward slip of following, detecting limiter 14 inserts and peg graft unified regulating ring 12 on the limiting groove through the last inserting groove of solid fixed ring 103, at this moment unified regulating ring 12 stops rotating, and solid fixed ring 103 continues to follow coring barrel 2 and rotate because of the circumstances such as ground unevenness or geological hardness differentiation, it is the reset rod is connected to the fixed ring 12 in the process that the moving on the fixed ring, the reset sleeve is connected to the fixed ring 101, wherein, reset rod is connected to the fixed ring is moved on the reset rod is connected to the fixed ring 101, and has the reset rod is had the opposite to the reset rod is connected to the limiting piece to the measuring rod.
Referring to fig. 4, the limiting part 6 is an arc block, one side of the limiting part 6, which is close to the outer side wall of the coring barrel 2, is rotationally connected with an L-shaped magnetic center rod 16, the coring barrel 2 is provided with a magnetic attraction area corresponding to the L-shaped magnetic center rod 16, the L-shaped magnetic center rod 16 comprises a cross rod and a vertical rod which are hinged together, the cross rod is horizontally embedded on the barrel opening of the coring barrel 2, the vertical rod is horizontally embedded on the outer side wall of the coring barrel 2, the other end of the cross rod is rotationally connected with the L-shaped magnetic center rod 16 and is embedded on the coring barrel 2, when a drill core is required to be taken out from the coring barrel 2, the vertical rod is firstly taken down from the coring barrel 2, the cross rod is controlled by the vertical rod to be taken down from the coring barrel 2, and then the arc strip 4 on the limiting part 6 is horizontally embedded on the outer side wall of the coring barrel 2 by pulling the vertical rod, the whole process is more convenient to outwards move the arc strip 4 out, and the convenience of coring is correspondingly improved.
Referring to fig. 5, a hook assembly 17 is connected between the connection rope 7 and the end control seat 5, the hook assembly 17 includes an annular hook seat 171 and a hook member 172, which are respectively and correspondingly connected to the end control seat 5 and the connection rope 7, and the hook member 172 corresponds to the bung hole of the coring barrel 2, when the end control seat 5 and the connection rope 7 are required to be connected together, the hook member 172 is hung on the corresponding annular hook seat 171, and then the arc-shaped strip 4 is driven to slide inwards along the chute 3 by synchronously winding the connection rope 7, when the end control seat 5 and the connection rope 7 are required to be disconnected, the hook member 172 is taken down by the annular hook seat 171 and the hook member 172 is hung at the bung hole of the coring barrel 2, so that the connection rope 7 and the end control seat 5 are convenient to be connected next time.
Referring to fig. 2 and 3, the winding and unwinding control mechanism 9 includes a plurality of positioning wheels 91, a plurality of guide wheels 92 and a plurality of winding disks 93, the connecting ropes 7 are sequentially connected to the winding disks 93 through the corresponding positioning wheels 91 and the guide wheels 92, the coring barrel 2 is connected with a driving ring 18 for uniformly controlling the winding disks 93 to wind the connecting ropes 7, the driving ring 18 is engaged and connected with a total driving gear 19, the winding disks 93 include vertically symmetrical limiting plates 931 and middle winding columns 932, the vertically symmetrical limiting plates 931 are respectively located at two ends of the middle winding columns 932, the vertically symmetrical limiting plates 931 are fixedly connected to the coring barrel 2, the middle winding columns 932 are rotatably connected between the vertically symmetrical limiting plates 931, the middle winding columns 932 extend out of the vertically symmetrical limiting plates 931 and are engaged and connected with the driving ring 18 through gears, the middle winding columns 932 are rotatably connected to the coring barrel 2, the driving ring 18 is driven to rotate through the total driving gear 19, the driving ring 932 is synchronously driven to rotate through rotation of the middle winding columns 932, and winding of the connecting ropes 7 is performed through rotation of the middle winding columns 932.
Referring to fig. 2 and 3, an automatic supplementing component 20 is connected to a connecting rope 7 outside the coring barrel 2, the automatic supplementing component 20 comprises a supporting connecting seat 201, a horizontal sliding rod 202 and an elastic restoring piece 203, one end of the horizontal sliding rod 202 is provided with a circular ring, the other end of the horizontal sliding rod 202 is provided with a balancing weight, the supporting connecting seat 201 is connected to the coring barrel 2, the horizontal sliding rod 202 is slidingly connected to the supporting connecting seat 201, the connecting rope 7 is inserted into the circular ring, the elastic restoring piece 203 is symmetrically connected between the supporting connecting seat 201 and the horizontal sliding rod 202, the horizontal sliding rod 202 slides outwards under the action of centrifugal force in the process of rotating the coring barrel 2, part of centrifugal force acts on the connecting rope 7 through the circular ring in the sliding process, the connecting rope 7 can be tensioned to a certain extent under the action of the centrifugal force, the corresponding arc-shaped strip 4 can be tensioned through the end control seat 5, the stability of the connection of the arc-shaped strip 4 with the coring barrel 2 can be prevented from being influenced due to overlarge friction force between the arc-shaped strip 4 and a core body in the process, and the stability of the core drilling process and the integrity of the core body are improved correspondingly.
Working principle: this a drilling coring equipment for geological exploration is before the core, place equipment body 1 in subaerial drilling coring's position earlier, afterwards restrict coring barrel 2's position through initial stop gear 10, make coring barrel 2 accurate by ground creep into underground, afterwards continuous down creep reaches completion core work and move the core to ground by the ground, then drive arc strip 4 and tip control seat 5 through locating part 6 and formed the cylindricality cover and outwards remove, make the core along with the removal of cylindricality cover and remove, and then take out the core smoothly by tip control seat 5 in, and the in-process of taking out has reduced the area between core and the coring barrel 2 inside wall, the frictional force between its and the coring barrel 2 when taking out by coring barrel 2 has effectively been reduced, corresponding reduction the core is taken out the difficult degree and has improved the speed of taking out, compared with prior art, the degree of difficulty of coring has been reduced, the efficiency of coring has been improved, the well degree of taking out the core has effectively been improved, simultaneously in the in-process of taking out the core, the core is cleared up the barrel through concatenation clear bucket assembly 8 to the barrel, can not be attached to the clearance of inner wall 3 and can also clear up the smooth debris 3 in the smooth spout of clearance 3 in the subsequent clearance of inner side wall in the process of the arc chute of taking out.
A method of coring in a borehole for geological exploration, the method being accomplished with a coring apparatus for geological exploration, comprising the steps of:
s1, preparation before drilling, namely placing a drilling coring device at a drilling coring position, and positioning the end part, close to the coring position, of the coring barrel 2 by utilizing an initial limiting mechanism 10;
s2, drilling, namely starting a driving device to drive the coring barrel 2 to drill to a coring position until the core drilling work is completed, and then taking out a core body through the coring barrel 2, wherein in the process of rotating the coring barrel 2, when the coring barrel 2 reaches a preset rotating position, the initial limiting mechanism 10 automatically stops limiting the coring barrel, so that the quality of the coring barrel 2 is prevented from being influenced by long-time limiting;
and S3, coring, namely taking out the core body from the coring barrel 2 through the arc-shaped strip 4.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A drilling coring device for geological exploration, comprising a device body (1) and a coring barrel (2), characterized in that: the core barrel (2) is internally and evenly provided with a chute (3), the chute (3) is internally and flatly embedded with an arc-shaped strip (4), the arc-shaped strip (4) is in sliding connection with the chute (3), an end control seat (5) is in sliding connection with the core barrel (2), the arc-shaped strip (4) is connected to one side, close to a barrel opening of the core barrel (2), of the end control seat (5), one end, far away from the end control seat (5), of the arc-shaped strip (4) is connected with a limiting piece (6), the limiting piece (6) is flatly embedded on the barrel opening of the core barrel (2), one side, far away from the barrel opening of the core barrel (2), of the end control seat (5) is connected with a connecting rope (7) and a splicing barrel assembly (8), the connecting rope (7) extends to the outside of the core barrel (2) and is connected with a retraction control mechanism (9) for uniformly controlling the connecting rope (7), and the equipment body (1) is connected with an initial limiting mechanism (10);
the splicing bucket cleaning assembly (8) comprises an arc filling stop block (81) and an arc scraping piece (82), the arc filling stop block (81) and the arc scraping piece (82) are sequentially connected in a staggered mode, the arc filling stop block (81) corresponds to the sliding groove (3) respectively, and the arc scraping piece (82) corresponds to the inner side of the coring bucket (2) between the adjacent sliding grooves (3) respectively;
the initial limiting mechanism (10) comprises a positioning ring seat (101), wherein the positioning ring seat (101) is connected with a following ring seat (102) in a sliding manner, a fixed ring (103) is connected to the following ring seat (102) in a rotating manner, arc-shaped adjusting blocks (104) are uniformly inserted on the fixed ring (103), screw adjusting pieces (11) are uniformly connected to the arc-shaped adjusting blocks (104), unified adjusting rings (12) for uniformly controlling the screw adjusting pieces (11) to rotate are arranged on the fixed ring (103), transverse gears (13) are connected to the unified adjusting rings (12) in a meshed manner, and detection limiting pieces (14) for limiting the rotation of the unified adjusting rings (12) are connected to the positioning ring seat (101).
2. A core drilling apparatus for geological exploration as claimed in claim 1, wherein: the arc-shaped strip piece (4) is rotationally connected with the end control seat (5), and a sliding limiting block (15) is uniformly and fixedly arranged on the convex cambered surface of the arc-shaped strip piece (4).
3. A core drilling apparatus for geological exploration as claimed in claim 1, wherein: the limiting piece (6) is an arc-shaped block, one side, close to the outer side wall of the coring barrel (2), of the limiting piece (6) is rotationally connected with an L-shaped magnetic center rod (16), the L-shaped magnetic center rod (16) comprises a cross rod and a vertical rod which are rotationally connected together, the cross rod is flatly embedded on the barrel opening of the coring barrel 2, and the vertical rod is flatly embedded on the outer side wall of the coring barrel (2).
4. A core drilling apparatus for geological exploration as claimed in claim 1, wherein: the connecting rope (7) and the end control seat (5) are connected with a hook assembly (17), the hook assembly (17) comprises an annular hook seat (171) and a hook piece (172), the annular hook seat (171) and the hook piece (172) are correspondingly connected to the end control seat (5) and the connecting rope (7) respectively, and the hook piece (172) corresponds to a barrel opening of the coring barrel (2).
5. A core drilling apparatus for geological exploration as claimed in claim 1, wherein: the winding and unwinding control mechanism (9) comprises a plurality of positioning wheels (91), a plurality of guide wheels (92) and a plurality of winding drums (93), the connecting ropes (7) are sequentially connected to the winding drums (93) through the corresponding positioning wheels (91) and the guide wheels (92), the coring barrel (2) is connected with a driving ring (18) for uniformly controlling the winding drums (93) to wind the connecting ropes (7), and the driving ring (18) is connected with a total driving gear (19) in a meshed manner.
6. A core drilling apparatus for geological exploration as claimed in claim 5, wherein: the winding disc (93) comprises limiting plates (931) and middle winding columns (932) which are vertically symmetrical, the limiting plates (931) are respectively located at two ends of the middle winding columns (932), the limiting plates (931) which are vertically symmetrical are fixedly connected to the coring barrel (2), the middle winding columns (932) are rotationally connected between the limiting plates (931) which are vertically symmetrical, and the middle winding columns (932) extend out of the limiting plates (931) which are vertically symmetrical and are in meshed connection with the driving ring (18) through gears.
7. A core drilling apparatus for geological exploration as claimed in claim 1, wherein: the automatic supplementing assembly (20) is connected to a connecting rope (7) outside the coring barrel (2), the automatic supplementing assembly (20) comprises a supporting connecting seat (201), a horizontal sliding rod (202) with a circular ring at the end part and an elastic resetting piece (203), the supporting connecting seat (201) is connected to the coring barrel (2), the horizontal sliding rod (202) is slidably connected to the supporting connecting seat (201), the connecting rope (7) is inserted in the circular ring, and the elastic resetting piece (203) is symmetrically connected between the supporting connecting seat (201) and the horizontal sliding rod (202).
8. A method of coring a borehole for geological exploration, wherein the method is performed in conjunction with a coring apparatus for geological exploration as set forth in claim 1, comprising the steps of:
s1, preparation before drilling, namely placing a drilling coring device at a drilling coring position, and positioning the end part, close to the coring position, of a coring barrel (2) by utilizing an initial limiting mechanism (10);
s2, drilling, namely starting a driving device to drive the coring barrel (2) to drill to a coring position until the core drilling work is completed, and then taking out the core body through the coring barrel (2), wherein in the process of rotating the coring barrel (2), when the coring barrel (2) reaches a preset rotating position, an initial limiting mechanism (10) automatically stops limiting the coring barrel;
and S3, coring, namely taking out the core body from the coring barrel (2) through the arc-shaped strip (4).
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| CN117027783B (en) * | 2023-08-22 | 2024-03-08 | 北京中资环钻探有限公司 | Thin-wall core drill suitable for geological exploration |
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