CN114235482A

CN114235482A - Drilling and coring equipment and method for geological exploration

Info

Publication number: CN114235482A
Application number: CN202111640043.2A
Authority: CN
Inventors: 韩轲; 张会; 高云鹏
Original assignee: Shandong Fourth Geological Mineral Investigation and Exploration Institute
Current assignee: Shandong Fourth Geological Mineral Investigation and Exploration Institute
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-03-25
Anticipated expiration: 2041-12-30
Also published as: CN114235482B

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 chutes are uniformly formed in the coring barrel, arc strips are embedded in the chutes, an end control seat is connected in the coring barrel in a sliding manner, the arc strips are connected to one side of the end control seat close to a barrel opening of the coring barrel, one end of the arc strip away from the end control seat is connected with a limiting part, one side of the end control seat 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 drilling coring equipment and the drilling coring method for geological exploration effectively improve coring efficiency and the integrity of core body taking out, and have the advantages of high drilling coring quality and high core body taking out quality.

Description

Drilling and coring equipment and method for geological exploration

Technical Field

The invention relates to the technical field of drilling coring, in particular to drilling coring equipment and a drilling coring method for geological exploration.

Background

The core-taking device for drilling mainly utilizes a core-taking barrel with a drill bit to carry out annular cutting motion on a base body to generate a columnar core and take out the columnar core, is commonly used in the aspects of road surface core-taking experiments, geological surveying and the like, and particularly in the aspect of geological surveying, the geological conditions such as stratum structure distribution, landforms and the like in a corresponding area can be accurately known through the taken-out core, so the integrity of the taken-out core is one of important factors influencing the precision of the geological surveying result.

At present, the process of coring in a drilling hole often occurs because the friction force between the core body and the coring barrel is too large, so that the core body can not be taken smoothly, 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 with publication number CN111119774A discloses a concrete core drilling and coring machine, which proposes a scheme for improving coring efficiency: strike the pole through drive assembly drive and move along the direction of being close to or keeping away from coring bit, the one end that makes to strike the pole and be equipped with the bolster can strike the realization repeatedly to coring bit's outer wall and break away from the purpose that comes out with thoughtlessly earth core body vibrations in coring bit's the inner chamber, though the bolster has been set up in this scheme, nevertheless reach and strike the purpose that vibrations made the core break away from, still can influence the stability that the drill bit is connected because of strike power that the in-process that strikes repeatedly produced, and then can influence the use of drill bit, and this scheme is not applicable to and drills to the not very high geology of cemented degree and gets the core, its process of striking vibrations and coring destroys the integrity of core very easily.

Disclosure of Invention

In order to solve the technical problems, the invention provides a drilling and coring device and a drilling and coring method for geological exploration, which are achieved by the following specific technical means: the core barrel comprises a device body and a core barrel, wherein the core barrel comprises a barrel body and a drill bit, the drill bit is connected to the opening of the barrel body, sliding grooves are uniformly formed in the core barrel, arc strips are embedded in the sliding grooves in a flat mode, are connected with the sliding grooves in a sliding mode, penetrate through the opening of the core barrel and are distributed in a staggered mode, the arc strips are embedded in the sliding grooves in a sliding mode in the direction of the opening and are spliced with the inner side wall of the core barrel to form a finished cylindrical barrel wall, an end control seat is connected in the core barrel in a sliding mode, the arc strips are connected to one side, close to the opening of the core barrel, of the end control seat, a limiting part is connected to one end, away from the end control seat, of the arc strips, the limiting part is flatly embedded in the opening of the core barrel, a connecting rope and a barrel cleaning assembly are connected to one side, away from the opening of the core barrel, of the end control seat, the connecting rope extends to the outside of the core barrel, and is connected with a retraction control mechanism for uniformly controlling the connecting rope, the equipment body is connected with an initial limiting mechanism;

the splicing barrel cleaning assembly comprises arc filling stop blocks and arc scraping pieces, the arc filling stop blocks and the arc scraping pieces are sequentially connected in a staggered manner, the arc filling stop blocks correspond to the sliding grooves respectively, the arc scraping pieces correspond to the inner sides of the coring barrels between the adjacent sliding grooves respectively, the inner side walls of the coring barrels are cleaned synchronously in the process that the core bodies are taken out from the coring barrels, and meanwhile, the sliding grooves can be effectively prevented from influencing the splicing of the arc strips due to the entering of foreign matters;

initial stop gear includes the retaining ring seat, sliding connection has the following ring seat on the retaining ring seat, and it is connected with solid fixed ring to follow to rotate on the ring seat, and it has the arc regulating block to evenly peg graft on the solid fixed ring, all is connected with the screw rod regulating part on the arc regulating block, is provided with the unified adjustable ring of unified control screw rod regulating part pivoted on the solid fixed ring, and the meshing is connected with transverse gear on the unified adjustable ring, is connected with the detection limiter of the unified adjustable ring pivoted of restriction on the retaining ring seat.

The preferred technical scheme is as follows: the arc-shaped strips are rotatably connected with the end control seat, and sliding limiting blocks are uniformly arranged on the convex arc surfaces of the arc-shaped strips at fixed points.

The preferred technical scheme II is as follows: the locating part is the arc piece, and the locating part rotates near one side of getting the core bucket lateral wall and is connected with well core rod of L shape magnetism, and well core rod of L shape magnetism is including rotating horizontal pole and the montant that links together, and the horizontal pole is flat to be inlayed on the bung hole of getting the core bucket, and the montant is flat to be inlayed on the lateral wall of getting the core bucket, and the other one end of horizontal pole is rotated and is connected and is rabbeted on getting the core bucket in L shape magnetism, at the in-process of getting the core, is convenient for with arc strip by the spout inside-out slip.

The preferable technical scheme is three: connect to be connected with the couple subassembly between rope and the end control seat, the couple subassembly includes annular hook seat and hook piece, and the two corresponds respectively to be connected on end control seat and connection rope, and hook piece is corresponding with the bung hole of getting the core bucket, and the hook piece of being convenient for will connect the rope and link together with the end control seat.

The preferable technical scheme is four: the winding and unwinding control mechanism comprises a plurality of positioning wheels, a plurality of guide wheels and a plurality of winding disks, the connecting rope is connected to the winding disks through the corresponding positioning wheels and the corresponding guide wheels in sequence, the core taking barrel is connected with a driving ring for uniformly controlling the winding disks to wind the connecting rope, and the driving ring is connected with a main driving gear in a meshed mode.

The preferable technical scheme is five: the winding disc comprises limiting plates which are symmetrical up and down and a middle winding column, the limiting plates which are symmetrical up and down are respectively positioned at two ends of the middle winding column, the limiting plates which are symmetrical up and down are fixedly connected on the coring barrel, the middle winding column is rotatably connected between the limiting plates which are symmetrical up and down, the middle winding column extends out of the limiting plates which are symmetrical up and down and is connected with the driving ring in a meshed mode through a gear, and the middle winding column is rotatably connected on the coring barrel.

The preferable technical scheme is six: be connected with the automatic subassembly that supplyes on the outer connecting rope of coring bucket, the automatic subassembly that supplyes includes that supporting connection seat, tip have the horizontal slide bar and the elasticity piece that resets of ring, and the supporting connection seat is connected on coring bucket, and horizontal slide bar sliding connection is on the supporting connection seat, and the connecting rope alternates in the ring, and elasticity piece symmetric connection that resets is between supporting connection seat and horizontal slide bar.

A drilling and coring method for geological exploration is completed by matching drilling and coring equipment for geological exploration, and comprises the following steps:

s1 preparation before drilling, namely, placing the drilling coring equipment at the drilling coring position, and positioning the end part of the coring barrel close to the coring position by using an initial limiting mechanism;

s2, drilling, namely starting a driving device to drive the coring barrel to drill towards the coring position until the coring work is finished, and then taking out the core body through the coring barrel, wherein in the process of rotating the coring barrel, when the coring barrel reaches the preset rotating position, the 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;

s3 coring, taking out the core from the coring barrel through the arc-shaped strips.

The invention has the following beneficial effects:

1. this a core equipment is got in drilling and core method for geological exploration passes through the combined action of equipment body, coring bucket, spout, arc strip, tip control seat and locating part, has formed one with the higher cylindricality cover of core laminating degree and with the core restriction in it, makes the core move along with the removal of cylindricality cover, has not only improved the stability of core, has reduced the degree of difficulty of coring simultaneously, corresponding improvement get the core efficiency and take out the intact degree of core.

2. This a core equipment is got in drilling and drilling method for geological exploration passes through initial stop gear, screw rod regulating part, unified adjustable ring, transverse gear and detects the combined action of restriction spare, can effectively avoid getting the core bucket and make the core bucket take place the skew because of ground unevenness or the serious circumstances such as geological hardness differentiation at the in-process that the initial drilling of core bucket, has improved the precision of getting the core bucket initial drilling in-process and has bored the position, corresponding improvement the quality of coring of drilling and the quality of taking out the core.

3. This a core equipment is got in drilling and core method for geological exploration is through the combined action of the clear bucket subassembly of concatenation, tip control seat and spout, at the core by the process of taking out in getting the core bucket, not only can be synchronous clear up the inside wall of getting the core bucket, avoid the inside wall to adhere to debris and influence follow-up drilling and get the work of core, but also can effectively prevent that the debris of clearance from getting into in the spout and influencing the gliding smoothness of arc strip in the spout.

4. According to the drilling coring equipment and the drilling coring method for geological exploration, the arc strips are automatically tensioned in the core drilling process through the combined action of the connecting ropes and the automatic supplement assemblies, so that the stability of the core drilling process and the integrity of a core body are improved.

Drawings

Fig. 1 is a schematic view 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 invention at B in fig. 2.

FIG. 4 is a partial cross-sectional view of the coring barrel of the present invention.

Fig. 5 is an enlarged view of the invention at C in fig. 4.

FIG. 6 is a partial schematic view 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 view of the connection structure of the initial limit mechanism and the screw adjusting member according to the present invention.

In the figure: 1. an apparatus body; 2. a core taking barrel; 3. a chute; 4. arc-shaped strips; 5. an end control seat; 6. a limiting member; 7. connecting ropes; 8. splicing the barrel cleaning components; 81. arc-shaped filling stop blocks; 82. an arc-shaped scraping piece; 9. a retraction control mechanism; 91. positioning wheels; 92. a guide wheel; 93. a winding disc; 931. a limiting plate; 932. a middle reeling post; 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 adjustment member; 12. unifying the adjusting rings; 13. a transverse gear; 14. detecting the limiting part; 15. a sliding limiting block; 16. an L-shaped magnetic center rod; 17. a hook assembly; 171. an annular hook base; 172. a hook member; 18. a drive ring; 19. a main drive gear; 20. an automatic supplementary assembly; 201. supporting the connecting seat; 202. a horizontal sliding bar; 203. an elastic reset piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present 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 to the barrel mouth of the barrel body, sliding grooves 3 are uniformly arranged in the coring barrel 2, arc strips 4 are embedded in the sliding grooves 3 in a sliding manner, the arc strips 4 are connected with the sliding grooves 3 in a sliding manner, the sliding grooves 3 penetrate through the barrel mouth of the coring barrel 2, the sliding grooves 3 and the drill bit are distributed in a staggered manner, the arc strips 4 are embedded in the sliding grooves 3 in a sliding manner from the barrel mouth direction and are spliced with the inner side wall of the coring barrel 2 to form a finished cylindrical barrel wall, an end control seat 5 is connected in the coring barrel 2 in a sliding manner, the arc strips 4 are connected to one side of the end control seat 5 close to the barrel mouth of the coring barrel 2 in a rotating manner, sliding limit blocks 15 are uniformly arranged at fixed points on the convex arc surface of the arc strips 4 to limit the sliding arc strips 4, ensure it to slide steadily along the runner 3, the end of the arc strip 4 far away from the end control seat 5 is connected with the limit part 6, the limit part 6 is flatly embedded on the barrel mouth of the coring barrel 2, when taking out the core from the coring barrel 2, the limit part 6 is pulled outwards, the arc strip 4 connected thereon is driven by the limit part 6 to slide outwards along the runner 3, in the process of sliding outwards of the arc strip 4, the arc strip and the end control seat 5 form a cylindrical cover with higher degree of fitting with the core, the core is limited in the cylindrical cover, the core moves along with the movement of the cylindrical cover, and then the core is taken out smoothly from the end control seat 5, 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 strip 4 and the core, thereby effectively reducing the friction force between the core and the coring barrel 2 when the core is taken out from the coring barrel 2, the corresponding degree of difficulty that has reduced the core and 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, improved the stability of core, can effectively reduce the core and take out the emergence of the in-process impaired condition because of frictional force, the corresponding integrity that has improved the core, compare with prior art, reduced the degree of difficulty of getting the core, improved the efficiency of getting the core, effectively improved the integrity of taking out the core simultaneously.

A connecting rope 7 and a splicing barrel cleaning assembly 8 are connected on one side of the end part control seat 5, which is far away from the barrel opening of the core taking barrel 2, the connecting rope 7 extends to the outside of the core taking 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 sheet 4 in the retraction process,

referring to fig. 4 and 5, the splicing barrel cleaning assembly 8 comprises an arc-shaped filling stop block 81 and an arc-shaped scraping element 82 which are sequentially connected in a staggered manner, and the arc-shaped filling stop block 81 is inserted in the chute 3 in a sliding manner, in the process of taking out the core from the core barrel 2, the arc-shaped filling stop block 81 slides in the chute 3 along with the end control seat 5, and the end control seat 5 drives the arc-shaped scraping element 82 to clean the part, which is not the chute 3, in the core barrel 2, and in the cleaning process, the cleaning object cannot enter the chute 3 due to the blockage of the arc-shaped filling stop block 81, so that in the core taking process, the inner side wall of the core barrel 2 can be cleaned synchronously, the phenomenon that the inner side wall is attached with sundries to influence the subsequent drilling and core taking work is avoided, and in the cleaning process, the smoothness of the arc-shaped strip pieces 4 sliding in the chute 3 can be effectively prevented from being influenced due to the fact that the cleaned sundries enter the chute 3, wherein the arc-shaped scraping element 82 is an arc-shaped receiving bucket with a scraping plate opening.

Referring to fig. 1, 7 and 8, an initial limiting mechanism 10 is connected to the apparatus body 1, the initial limiting mechanism 10 includes a positioning ring seat 101, the positioning ring seat 101 automatically performs horizontal positioning by adjusting the levelness of the apparatus body 1, a following ring seat 102 is slidably connected to the positioning ring seat 101, a fixing ring 103 is rotatably connected to the following ring seat 102, arc-shaped adjusting blocks 104 are uniformly inserted into the fixing ring 103, the arc-shaped adjusting blocks 104 are connected to screw adjusting pieces 11, a uniform adjusting ring 12 for uniformly controlling the rotation of the screw adjusting pieces 11 is disposed on the fixing ring 103, the screw adjusting pieces 11 include a threaded rod and a threaded sleeve, the threaded rod is fixedly connected to the arc-shaped adjusting blocks 104 and slidably connected to the fixing ring 103, the threaded sleeve is threadedly sleeved on the threaded rod, the threaded sleeve is rotatably connected to the fixing ring 103, and a transverse gear 13 is engaged with the uniform adjusting ring 12, the screw rod sleeve is sleeved with a helical gear, the unified adjusting ring 12 is provided with a helical tooth surface meshed with the helical gear, the screw sleeve is driven to rotate by rotating the unified adjusting ring 12, the positioning ring seat 101 is connected with a detection limiting part 14 for limiting the rotation of the unified adjusting ring 12, the fixed ring 103 and the following ring seat 102 are both provided with insertion grooves matched with the detection limiting part 14, the unified adjusting ring 12 is provided with a limiting groove corresponding to the detection limiting part 14, before the core barrel 2 starts to drill, the transverse gear 13 is rotated to drive the unified adjusting ring 12 to rotate in the fixed ring 103, the unified adjusting ring 12 synchronously drives the screw sleeve to rotate in the rotating process, the screw sleeve synchronously drives the arc-shaped adjusting block 104 to move towards the core barrel 2 through a threaded rod in the rotating process to adjust the position of the core barrel 2 along with the contact with the core barrel 2, so that the core barrel 2 is in a vertical state with the ground, then along with the process that the coring barrel 2 drills into the ground from the ground, the arc-shaped adjusting block 104 rotates along with the rotation of the coring barrel 2, the fixing ring 103 is synchronously driven to rotate on the following ring seat 102, and along with the drilling of the coring barrel 2, the following ring seat 102 slides on the positioning ring seat 101 towards the ground, in the whole process, the coring barrel 2 is continuously limited through the arc-shaped adjusting block 104, the situation that the coring barrel 2 deflects due to the uneven ground or serious geological hardness difference in the initial drilling process can be effectively avoided, the accuracy of the drilling position in the initial drilling process of the coring barrel 2 is improved, the quality of drilling holes is correspondingly improved, after the coring barrel 2 drills into the ground smoothly, the following ring seat 102 slides to the coring position of the detection limiting part 14, along with the continuous downward sliding of the following ring seat 102, the detection limiting part 14 is inserted from the insertion groove on the detection limiting part, and is uniformly inserted on the limiting groove through the insertion groove on the fixing ring seat 103 to adjust and insert into the limiting groove through the insertion groove The festival ring 12 carries on spacingly, and unified adjustable ring 12 stall this moment, and fixed ring 103 continues to rotate along with coring bucket 2, and at the pivoted in-process, unified adjustable ring 12 drives the thread bush and is the motion that resets, and contrary with above-mentioned process, drives arc regulating block 104 and parts with coring bucket 2, wherein detects the slide bar of restriction spare 14 for having the fixture block, and slide bar sliding connection is on retainer ring seat 101, and is connected with the spring piece that resets between the two.

Referring to fig. 4, the limiting member 6 is an arc-shaped block, one side of the limiting member 6 close to the outer side wall of the coring barrel 2 is rotatably connected with an L-shaped magnetic central rod 16, the coring barrel 2 is provided with a magnetic attraction area corresponding to the L-shaped magnetic central rod 16, the L-shaped magnetic central rod 16 comprises a cross rod and a vertical rod which are hinged together, the cross rod is flatly embedded on the barrel mouth of the coring barrel 2, the vertical rod is flatly embedded on the outer side wall of the coring barrel 2, the other end of the cross rod is rotatably connected with the L-shaped magnetic central rod 16 and is embedded on the coring barrel 2, the L-shaped magnetic central rod 16 is flatly embedded at a corresponding position on the coring barrel 2 under the action of the magnetic attraction area during core drilling, when the core is required to be taken out from the coring barrel 2, the vertical rod is firstly taken out from the coring barrel 2, the cross rod is controlled by the coring barrel 2 to be taken out by the vertical rod, then the arc-shaped strip 4 on the limiting member 6 is pulled outwards by pulling the vertical rod, the whole process is more convenient for moving the arc-shaped strip 4 outwards, 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 barrel mouth 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 hooked on the corresponding annular hook seat 171, then the connection rope 7 is connected through synchronous winding, the arc-shaped strip 4 is driven to slide inwards along the chute 3, when the end control seat 5 and the connection rope 7 are required to be disconnected, the hook member 172 is taken down from the annular hook seat 171 and the hook member 172 is hung at the barrel mouth of the coring barrel 2, so that the connection rope 7 and the end control seat 5 are connected together 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 rope 7 sequentially passes through the corresponding positioning wheels 91 and guide wheels 92 to be connected to the winding disks 93, the coring barrel 2 is connected to a driving ring 18 for uniformly controlling the winding disks 93 to wind the connecting rope 7, the driving ring 18 is engaged with a main 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 to be engaged 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 by rotating the main driving gear 19, the drive ring 18 rotates the intermediate winding post 932 in synchronization with the rotation, and the connection rope 7 is wound by the rotation of the intermediate winding post 932.

Referring to fig. 2 and 3, the automatic supplement assembly 20 is connected to the connecting rope 7 outside the coring barrel 2, the automatic supplement assembly 20 includes a support connection seat 201, a horizontal sliding rod 202 and an elastic reset piece 203, one end of the horizontal sliding rod 202 is provided with a circular ring, the other end is provided with a balancing weight, the support connection seat 201 is connected to the coring barrel 2, the horizontal sliding rod 202 is slidably connected to the support connection seat 201, the connecting rope 7 is inserted into the circular ring, the elastic reset piece 203 is symmetrically connected between the support connection seat 201 and the horizontal sliding rod 202, the horizontal sliding rod 202 slides outwards on the support connection seat 201 under the action of centrifugal force in the rotation process of 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 degree under the action of the centrifugal force, correspondingly, the arc-shaped strip 4 can be tensioned through the end control seat 5, the stability that the arc-shaped strip 4 is connected with the coring barrel 2 can be prevented from being influenced by overlarge friction force between the arc-shaped strip and the core body in the core drilling process, and the stability of the core drilling process and the integrity of the core body are correspondingly improved.

The working principle is as follows: before drilling core, the drilling core taking device for geological exploration firstly arranges the device body 1 at the position of drilling core on the ground, then limits the position of the core taking barrel 2 through the initial limiting mechanism 10, so that the core taking barrel 2 is accurately drilled from the ground to the ground, then continuously drills downwards until the core drilling work is finished and the core is moved from the ground to the ground, then the limiting part 6 drives the arc-shaped strip 4 and the end part control seat 5 to form a cylindrical cover to move outwards, so that the core moves along with the movement of the cylindrical cover, the core is smoothly taken out from the end part control seat 5, the area between the core and the inner side wall of the core taking barrel 2 is reduced in the taking-out process, the friction between the core and the core taking barrel 2 when the core is taken out from the core taking barrel 2 is effectively reduced, the difficulty of taking out the core is correspondingly reduced, and the taking-out speed is improved, compared with the prior art, the degree of difficulty of getting the core has been reduced, the efficiency of getting the core has been improved, the integrity of taking out the core has effectively been improved, simultaneously at the in-process that the core was taken out, clear barrel subassembly 8 clears up getting the core bucket through the concatenation, not only can avoid the inside wall to adhere to debris and influence the work that follow-up drilling was got the core, can also effectively prevent in the debris that clears up from getting into spout 3 in addition and influence arc strip 4 gliding smooth degree in spout 3.

s1 preparation before drilling, namely, placing the drilling coring equipment at the drilling coring position, and positioning the end part of the coring barrel 2 close to the coring position by using the initial limiting mechanism 10;

s2, drilling, namely starting a driving device to drive the coring barrel 2 to drill towards the coring position until the coring work is finished, and then taking out the core through the coring barrel 2, wherein in the process of rotating the coring barrel 2, when the coring barrel reaches a preset rotating position, the initial limiting mechanism 10 automatically stops limiting the core, so that the quality of the coring barrel 2 is prevented from being influenced by long-time limiting;

s3 coring, the core body is taken out 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 appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A core equipment is got in drilling for geological exploration, includes equipment body (1) and gets core bucket (2), its characterized in that: the core taking barrel is characterized in that sliding grooves (3) are uniformly formed in the core taking barrel (2), arc-shaped strips (4) are embedded in the sliding grooves (3) in a flat mode, the arc-shaped strips (4) are connected with the sliding grooves (3) in a sliding mode, an end control seat (5) is connected in the core taking barrel (2) in a sliding mode, the arc-shaped strips (4) are connected to one side, close to a barrel opening of the core taking barrel (2), of the end control seat (5), one end, far away from the end control seat (5), of the arc-shaped strips (4) is connected with a limiting part (6), the limiting part (6) is embedded in the barrel opening of the core taking barrel (2) in a flat mode, one side, far away from the barrel opening of the core taking barrel (2), of the end control seat (5) is connected with a connecting rope (7) and a splicing barrel cleaning assembly (8), the connecting rope (7) extends to the core taking barrel (2) and is connected with a retraction control mechanism (9) for controlling the connecting rope (7) in a unified mode, and an initial limiting mechanism (10) is connected to the equipment body (1);

the splicing barrel cleaning assembly (8) comprises arc filling stop blocks (81) and arc scraping pieces (82), the arc filling stop blocks (81) and the arc scraping pieces (82) are sequentially connected in a staggered manner, the arc filling stop blocks (81) correspond to the sliding chutes (3) respectively, and the arc scraping pieces (82) correspond to the inner sides of the coring barrels (2) between the adjacent sliding chutes (3) respectively;

initial stop gear (10) are including position ring seat (101), sliding connection has following ring seat (102) on position ring seat (101), it is connected with solid fixed ring (103) to rotate on following ring seat (102), it has arc regulating block (104) to evenly peg graft on solid fixed ring (103), all be connected with screw rod regulating part (11) on arc regulating block (104), be provided with unified control screw rod regulating part (11) pivoted unified adjustable ring (12) on solid fixed ring (103), the meshing is connected with horizontal gear (13) on unified adjustable ring (12), be connected with on position ring seat (101) and restrict unified adjustable ring (12) pivoted detection restriction spare (14).

2. A drilling and coring apparatus for geological exploration, as claimed in claim 1, wherein: arc strip (4) and tip control seat (5) rotate to be connected, and evenly fix a point on the convex arc face of arc strip (4) and be provided with slip stopper (15).

3. A drilling and coring apparatus for geological exploration, as claimed in claim 1, wherein: locating part (6) are the arc piece, and rotate in locating part (6) is close to one side of coring bucket (2) lateral wall and be connected with L shape magnetism well core rod (16), and well core rod (16) are including rotating horizontal pole and the montant that links together in the L shape magnetism, and the horizontal pole is flat to be inlayed on the bung hole of coring bucket 2, and the montant is flat to be inlayed on the lateral wall of coring bucket (2).

4. A drilling and coring apparatus for geological exploration, as claimed in claim 1, wherein: connect and be connected with couple subassembly (17) between rope (7) and tip control seat (5), couple subassembly (17) are including annular hook seat (171) and hook piece (172), and the two corresponds respectively and connects on tip control seat (5) and connection rope (7), and hook piece (172) and the bung hole of coring bucket (2) are corresponding.

5. A drilling and coring 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 disks (93), the connecting rope (7) is connected to the winding disks (93) through the corresponding positioning wheels (91) and the guide wheels (92) in sequence, a driving ring (18) for uniformly controlling the winding disks (93) to wind the connecting rope (7) is connected to the coring barrel (2), and a main driving gear (19) is meshed and connected to the driving ring (18).

6. A drilling and coring device for geological exploration, according to claim 5, wherein: the winding disc (93) comprises limiting plates (931) which are symmetrical up and down and a middle winding column (932), the limiting plates (931) which are symmetrical up and down are respectively positioned at two ends of the middle winding column (932), the limiting plates (931) which are symmetrical up and down are fixedly connected on the coring barrel (2), the middle winding column (932) is rotatably connected between the limiting plates (931) which are symmetrical up and down, and the middle winding column (932) extends out of the limiting plates (931) which are symmetrical up and down and is connected with the driving ring (18) in a meshing mode through a gear.

7. A drilling and coring apparatus for geological exploration, as claimed in claim 1, wherein: get and be connected with automatic subassembly (20) of supplanting on connecting rope (7) outside core barrel (2), automatic subassembly (20) of supplanting is including supporting connecting seat (201), horizontal slide bar (202) and elasticity that the tip has the ring reset piece (203), supporting connecting seat (201) is connected on core barrel (2), horizontal slide bar (202) sliding connection is on supporting connecting seat (201), connecting rope (7) alternate in the ring, elasticity resets piece (203) symmetric connection between supporting connecting seat (201) and horizontal slide bar (202).

8. A borehole coring method for geological exploration, characterized by being carried out cooperatively with the borehole coring apparatus for geological exploration according to claim 1, comprising the steps of:

s1 preparation before drilling, namely, placing the drilling coring equipment at the drilling coring position, and positioning the end part of the coring barrel (2) close to the coring position by using the initial limiting mechanism (10);

s2, drilling, namely starting a driving device to drive the coring barrel (2) to drill towards the coring position until the coring work is finished, and then taking out the core through the coring barrel (2), wherein in the process of rotating the coring barrel (2), when the coring barrel reaches the preset rotating position, the initial limiting mechanism (10) automatically stops limiting the core;

s3 coring, namely taking out the core body from the coring barrel (2) through the arc-shaped strip (4).