CN108360993B - Exploration rope core drill - Google Patents
Exploration rope core drill Download PDFInfo
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- CN108360993B CN108360993B CN201810368203.4A CN201810368203A CN108360993B CN 108360993 B CN108360993 B CN 108360993B CN 201810368203 A CN201810368203 A CN 201810368203A CN 108360993 B CN108360993 B CN 108360993B
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- spring
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- clamping
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- 241001449342 Chlorocrambe hastata Species 0.000 claims abstract description 94
- 238000011084 recovery Methods 0.000 claims abstract description 36
- 230000000903 blocking effect Effects 0.000 claims abstract description 32
- 238000005553 drilling Methods 0.000 claims abstract description 30
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000007727 signaling mechanism Effects 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
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- 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)
- Earth Drilling (AREA)
Abstract
The invention discloses an exploration rope core drill, which comprises an outer pipe assembly and an inner pipe assembly matched with the outer pipe assembly for use, wherein the outer pipe assembly comprises a spring blocking head, a spring blocking chamber, a seat ring, an outer pipe and a drill bit; the inner pipe assembly comprises a spearhead matched with the bullet blocking head, a bullet blocking frame, a bullet caliper matched and blocked with the bullet blocking chamber, a recovery pipe, a suspension ring matched and suspended with the seat ring, a mandrel and an inner pipe. The invention has the advantages of simple structure, very convenient maintenance, shorter design length, greatly reduced number of parts, reduced cost of drilling tools, reduced curvature radius of overbending, more convenience in drilling tools loading and unloading, reduced pipe clamping phenomenon and overcome the phenomenon of top slip.
Description
Technical Field
The invention relates to the technical field of drilling tools, in particular to a core drilling tool for exploration ropes.
Background
The core drilling process includes the steps of using large diameter drill rod, sleeving core taking pipe inside drilling tool, slowly loading core in core taking pipe during drilling, taking core pipe out of drill rod, and drilling. Compared with the common drilling coring, the rope coring has the advantages of controlling the drilling skewness, improving the drilling efficiency, reducing the engineering cost, improving the core taking rate, reducing the hole accidents and the like; in particular, the method has incomparable advantages in the aspect of drilling through complex stratum and other construction technologies, and is widely applied.
However, in the prior art, taking a commonly used S95 rope drilling tool as an example, the size and the length of the rope drilling tool are often overlong and the structure is complex, so that the maintenance is very inconvenient, the cost is increased due to excessive parts, the over-bending curvature radius is large, the upper and lower drilling tools are very inconvenient, and the pipe clamping phenomenon is very much.
Therefore, it is desirable to provide a new exploration rope core drill that addresses the above-described deficiencies of the prior art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the exploration rope core drill which has the advantages of simple structure, convenient maintenance, short length and difficult pipe clamping.
In order to achieve the above purpose, the technical scheme of the invention is to provide an exploration rope core drill, which comprises an outer pipe assembly and an inner pipe assembly matched with the outer pipe assembly for use, wherein the outer pipe assembly comprises a spring blocking head (1), a spring blocking chamber (35), a seat ring (10), an outer pipe (19) and a drill bit (26); the inner pipe assembly comprises a spearhead (2) matched with the bullet blocking head (1), a bullet blocking frame (33), a bullet caliper (4) matched and blocked with a bullet blocking chamber (35), a recovery pipe (34), a suspension ring (9) matched and suspended with the seat ring (10), a mandrel (16) and an inner pipe (20);
the spearhead (2) is connected with the spring clamping frame (33); one end of the spring clamp (4) far away from the spearhead (2) is movably connected with the spring clamp frame (33) through a pin shaft; the elastic clamping frame (33) is sleeved with a recovery pipe (34); the upper end of the mandrel (16) is connected with the spring clamping frame (33); the core shaft (16) is sequentially sleeved with a check ring (12), a shut-off valve (13), a rear check ring (14), a bearing seat (30) and a buffer pad (15) from top to bottom, a thrust ball bearing (29) is arranged in the bearing seat (30), the check ring (12), the shut-off valve (13), the rear check ring (14) and the thrust ball bearing (29) are supported on the buffer pad (15), and the buffer pad (15) is fixed at the bottom end of the core shaft (16); the lower end of the bearing seat (30) is connected with an inner pipe joint (28), and the inner pipe joint (28) is connected with the inner pipe (20); the top of the inner tube (20) is provided with a drainage channel, and the bottom of the inner tube (20) is provided with a clamp spring.
Through such design, simplify the complicated mechanism of current S95 drilling tool, not only the result is simple, it is also very convenient to maintain to length is also short, and it is very convenient to use, uses the part to change from original 60 parts into the part quantity about half, and the total length also shortens to 628 from original 1440, and length is short, and the radius of curvature of overbending is just little, and it is convenient more to go up drilling tool (inner tube assembly), and the phenomenon of card pipe is just less simultaneously.
Preferably, the bullet clamp (4) is composed of a pair of clamping pieces (41), and the clamping pieces (41) in the pair are mounted on the bullet clamp frame (33) through pin shafts; the bottom of the spearhead (2) is provided with a spring caliper lock pin (62), and the spring caliper lock pin (62) is inserted into or pulled out from the space between the upper ends of the two cards (41) in a matching way. Thoroughly prevent in the in-process of boring, bullet calliper is retracted and is propped up the slip under the ascending pressure effect in bottom.
Preferably, the bullet clamping frame (33) comprises a spearhead sliding section (50), a bullet caliper mounting section (52), a recovery pipe limiting boss (54) and a mandrel connecting section (55) from top to bottom in sequence; the spearhead sliding section (50) is provided with a spearhead sliding hole (51) which is formed in the vertical direction, the spearhead (2) is connected in the spearhead sliding section (50) in a vertical sliding mode, the spearhead (2) is connected with spearhead cylindrical pins (61), two ends of the spearhead cylindrical pins (61) are matched with the spearhead sliding hole (51) to slide up and down, and the spearhead sliding hole is limited by the upper inner edge and the lower inner edge of the spearhead sliding hole (51);
the spring caliper mounting section (52) is provided with a spring caliper mounting hole (53) connected with the spring caliper, the spring caliper consists of two clamping pieces (41), the lower parts of the two clamping pieces (41) are rotationally connected to a spring caliper cylindrical pin (64), two ends of the spring caliper cylindrical pin (64) are connected with the spring caliper mounting hole (53), an inner spring (63) of the spring caliper is clamped between the two clamping pieces (41), and the inner spring (63) of the spring caliper is compressed between the two clamping pieces (41) and forces the two clamping pieces (41) to open outwards; the bullet calliper mounting section (52) lateral wall both sides have seted up interior bullet card via hole (58), interior bullet card via hole (58) are located bullet calliper mounting hole (53) top, and bullet calliper (4) open with the in-process of withdrawal, card (41) upper portion is stretched out and is withdrawn from interior bullet card via hole (58), the plane that card (41) are located is perpendicular with the axial of bullet calliper mounting hole (53).
By the design, when the spring calipers fall to the matching position, the spring calipers can be automatically opened through the inner tension springs (63) of the calipers to be matched and clamped with the spring clamping chamber (35).
Preferably, the outside of the spring clamping frame (33) is also sheathed with a recovery pipe (34) in a sliding way, and the recovery pipe (34) comprises a recovery pipe body (56); the two sides of the middle part of the recovery pipe body (56) are provided with outer spring card through holes (57), and the positions of the outer spring card through holes are matched with the inner spring card through holes (58); the upper part of the recovery pipe body (56) is also provided with a spearhead cylindrical pin connecting hole (59), and two ends of the spearhead cylindrical pin (61) penetrate through the spearhead sliding hole (51) and then are connected with the spearhead cylindrical pin connecting hole (59); when the spearhead (2) slides up and down, the spearhead cylindrical pin (61) drives the spring clamping frame (33) to synchronously move up and down; the lower edge of the outer spring card through hole (57) is provided with a spring caliper retracting inclined pushing surface (60) matched with the outer edge of the card (41). The design is beneficial to retracting the spring calipers (4) through the recovery pipe (34) during coring and smoothly recovering.
Preferably, the opening angle between the two cards (41) is 83 DEG, and the retraction angle is 80 DEG, and the length of the inner tube can be further shortened by small angle changes.
Preferably, an upper clamping spring seat (23) and a lower clamping spring seat (25) are respectively arranged in the inner tube (20) from top to bottom, an upper blocking spring (21) is arranged above the upper clamping spring seat (23), and a lower blocking spring (24) is arranged above the lower clamping spring seat (25). The design can tightly hold the rock core through the upper clamping spring seat (23) and the lower clamping spring seat (25), and the rock core is pulled out under the action of lifting force. The upper and lower retaining springs 21, 24 prevent cores (particularly loose cores) entering the inner tube from falling off the inner tube during the process of moving from the working place to the bottom surface after the lifting.
Preferably, an upper reamer (32) and a lower reamer (27) are respectively arranged at the upper part and the lower part of the outer tube (19); the lower part of the inner tube (30) is sleeved with a centralizing ring (22), and the outer surface of the centralizing ring (22) is contacted with the outer tube (19). Such a design ensures reaming and righting effects.
Preferably, a limit screw (11) is arranged between the spring clamping frame (33) and the check ring (12); a sealing felt (31) is further arranged between the rear retainer ring (14) and the thrust ball bearing (29). Such a design facilitates adjusting the height position of the inner tube (20) on the mandrel (16). The sealing felt (31) can prevent moisture from entering the thrust ball bearing (29).
Preferably, a steel ball (17) for preventing water from entering the inner tube (20) from the drainage channel is arranged in the drainage channel arranged at the top of the inner tube (20). This design facilitates the drainage of water from the inner pipe by pushing the steel ball (17) away.
Preferably, the total length of the drilling tool is 628cm. Such a design is a further optimization of the scheme.
The invention has the advantages and beneficial effects that: through such design, simplify the complicated mechanism of current S95 drilling tool, not only the result is simple, it is also very convenient to maintain to length is also short, and it is very convenient to use, uses the part to change from original 60 parts into the part quantity about half, and the total length also shortens to 628 from original 1440, and length is short, and the radius of curvature of overbending is just little, and it is convenient more to go up drilling tool (inner tube assembly), and the phenomenon of card pipe is just less simultaneously.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view showing the opening of the spring caliper 4 according to embodiment 2 of the present invention;
FIG. 3 is a schematic view showing the closing of the spring caliper 4 of embodiment 2 of the present invention;
fig. 4 is a cross-sectional view (same view as fig. 1 and 2) of a card ejection rack 33 according to embodiment 2 of the present invention;
FIG. 5 is a cross-sectional view of the spring clip 33 of embodiment 2 (the view of FIG. 4 rotated 90 degrees);
FIG. 6 is a schematic view showing the structure of the recovery pipe 34 according to embodiment 2 of the present invention;
fig. 7 is a cross-sectional view taken along A-A in fig. 6.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
1-7, an exploration rope core drill includes an outer tube assembly and an inner tube assembly used with the outer tube assembly, wherein the outer tube assembly includes a snap head 1, a snap chamber 35, a seat ring 10, an outer tube 19 and a drill bit 26; the inner pipe assembly comprises a spearhead 2 matched with the bullet blocking head 1, a bullet blocking frame 33, a bullet caliper 4 matched and blocked with a bullet blocking chamber 35, a recovery pipe 34, a suspension ring 9 matched and suspended with a seat ring 10, a mandrel 16 and an inner pipe 20;
the spearhead 2 is connected with a spring clamping frame 33; one end of the bullet caliper 4, which is far away from the spearhead 2, is movably connected with the bullet clamping frame 33 through a pin shaft; the elastic clamping frame 33 is sleeved with a recovery pipe 34; the upper end of the mandrel 16 is connected with a spring clamping frame 33; the core shaft 16 is sequentially sleeved with a check ring 12, a shutoff valve 13, a rear check ring 14, a bearing seat 30 and a buffer cushion 15 from top to bottom, a thrust ball bearing 29 is arranged in the bearing seat 30, the check ring 12, the shutoff valve 13, the rear check ring 14 and the thrust ball bearing 29 are supported on the buffer cushion 15, and the buffer cushion 15 is fixed at the bottom end of the core shaft 16; the lower end of the bearing seat 30 is connected with the inner pipe joint 28, and the inner pipe joint 28 is connected with the inner pipe 20; the top of the inner tube 20 is provided with a drainage channel, and the bottom of the inner tube 20 is provided with a clamp spring.
The bullet clamp 4 consists of a pair of clamping pieces 41, and the pair of clamping pieces 41 are mounted on the bullet clamp frame 33 through a pin shaft; the bottom of the spearhead 2 is provided with a spring caliper lock pin 62, and the spring caliper lock pin 62 is inserted into or withdrawn from the space between the upper ends of the two cards 41 in a matching manner.
The bullet clamping frame 33 sequentially comprises a spearhead sliding section 50, a bullet caliper mounting section 52, a recovery pipe limiting boss 54 and a mandrel connecting section 55 from top to bottom; the spearhead sliding section 50 is provided with a spearhead sliding hole 51 which is arranged along the up-down direction, the spearhead 2 is connected in the spearhead sliding section 50 in an up-down sliding way, the spearhead 2 is connected with a spearhead cylindrical pin 61, two ends of the spearhead cylindrical pin 61 are matched with the spearhead sliding hole 51 to slide up and down, and the spearhead sliding hole 51 is limited by the up-down inner edge of the spearhead sliding hole 51;
the spring caliper mounting section 52 is provided with a spring caliper mounting hole 53 connected with a spring caliper, the spring caliper is composed of two cards 41, the lower parts of the two cards 41 are rotatably connected with a spring caliper cylindrical pin 64, two ends of the spring caliper cylindrical pin 64 are connected with the spring caliper mounting hole 53, an inner spring 63 of the spring caliper is clamped between the two cards 41, and the inner spring 63 of the spring caliper is compressed between the two cards 41 and forces the two cards 41 to open outwards; the bullet calliper mounting section 52 lateral wall both sides have seted up interior bullet card via hole 58, interior bullet card via hole 58 is located bullet calliper mounting hole 53 top, and bullet calliper 4 open with the in-process of withdrawal, card 41 upper portion stretches out and withdraws from interior bullet card via hole 58, the plane that card 41 is located is perpendicular with the axial of bullet calliper mounting hole 53.
The outside of the spring clamping frame 33 is also sheathed with a recovery pipe 34 in a sliding way, and the recovery pipe 34 comprises a recovery pipe body 56; the two sides of the middle part of the recovery pipe body 56 are provided with outer spring card through holes 57, and the positions of the outer spring card through holes 57 are matched with the positions of the inner spring card through holes 58; the upper part of the recovery pipe body 56 is also provided with a spearhead cylindrical pin connecting hole 59, and two ends of the spearhead cylindrical pin 61 penetrate through the spearhead sliding hole 51 and then are connected with the spearhead cylindrical pin connecting hole 59; when the spearhead 2 slides up and down, the spearhead cylindrical pin 61 drives the bullet clamping frame 33 to synchronously move up and down; the lower edge of the outer spring card via 57 is provided with a spring caliper retraction bezel 60 that mates with the outer edge of the card 41.
The opening angle between the two cards 41 is 83 ° and the retraction angle is 80 °.
An upper clamping spring seat 23 and a lower clamping spring seat 25 are respectively arranged in the inner tube 20 from top to bottom, an upper blocking spring 21 is arranged above the upper clamping spring seat 23, and a lower blocking spring 24 is arranged above the lower clamping spring seat 25.
An upper reamer 32 and a lower reamer 27 are provided at the upper and lower parts of the outer tube 19, respectively; the lower part of the inner tube 30 is sleeved with a centralizing ring 22, and the outer surface of the centralizing ring 22 is contacted with the outer tube 19.
A limit screw 11 is further arranged between the spring clamping frame 33 and the retainer ring 12; a sealing felt 31 is also arranged between the rear retainer ring 14 and the thrust ball bearing 29; .
A steel ball 17 for preventing water from entering the inner tube 20 from the drainage channel is arranged in the drainage channel arranged at the top of the inner tube 20.
The total length of the drilling tool is 628cm.
Example 1
An exploration rope core drill, characterized in that: the device comprises an outer tube assembly and an inner tube assembly matched with the outer tube assembly for use, wherein the outer tube assembly comprises a spring clamping head 1, a spring clamping chamber 35, a seat ring 10, an outer tube 19 and a drill bit 26; the inner pipe assembly comprises a spearhead 2 matched with the bullet blocking head 1, a bullet blocking frame 33, a bullet caliper 4 matched and blocked with a bullet blocking chamber 35, a recovery pipe 34, a suspension ring 9 matched and suspended with a seat ring 10, a mandrel 16 and an inner pipe 20;
the spearhead 2 is connected with a spring clamping frame 33; one end of the bullet caliper 4, which is far away from the spearhead 2, is movably connected with the bullet clamping frame 33 through a pin shaft; the elastic clamping frame 33 is sleeved with a recovery pipe 34; the upper end of the mandrel 16 is connected with a spring clamping frame 33; the core shaft 16 is sequentially sleeved with a check ring 12, a shutoff valve 13, a rear check ring 14, a bearing seat 30 and a buffer cushion 15 from top to bottom, a thrust ball bearing 29 is arranged in the bearing seat 30, the check ring 12, the shutoff valve 13, the rear check ring 14 and the thrust ball bearing 29 are supported on the buffer cushion 15, and the buffer cushion 15 is fixed at the bottom end of the core shaft 16; the lower end of the bearing seat 30 is connected with the inner pipe joint 28, and the inner pipe joint 28 is connected with the inner pipe 20; the top of the inner tube 20 is provided with a drainage channel, and the bottom of the inner tube 20 is provided with a clamp spring.
An upper clamping spring seat 23 and a lower clamping spring seat 25 are respectively arranged in the inner tube 20 from top to bottom, an upper blocking spring 21 is arranged above the upper clamping spring seat 23, and a lower blocking spring 24 is arranged above the lower clamping spring seat 25.
An upper reamer 32 and a lower reamer 27 are provided at the upper and lower parts of the outer tube 19, respectively; the lower part of the inner tube 30 is sleeved with a centralizing ring 22, and the outer surface of the centralizing ring 22 is contacted with the outer tube 19.
A limit screw 11 is further arranged between the spring clamping frame 33 and the retainer ring 12; a sealing felt 31 is also arranged between the rear retainer ring 14 and the thrust ball bearing 29; .
A steel ball 17 for preventing water from entering the inner tube 20 from the drainage channel is arranged in the drainage channel arranged at the top of the inner tube 20.
The total length of the drilling tool is 628cm. Compared with the drilling tool of s95, the in-place signaling mechanism is reduced, so that water flow directly falls from the shutoff valve 13, and the length of the drilling tool is reduced; meanwhile, the length is reduced by replacing the original spring buffer with the buffer cushion 15; other parts of the drilling tool are simplified and the final length is achieved.
When the drilling tool is used, firstly, the outer pipe assembly is placed in a drilling hole, then, the inner pipe assembly is placed in the outer pipe, after the suspension ring 9 and the seat ring 10 are in fit suspension, flushing fluid reaches the bottoms of the inner pipe 20 and the outer pipe 19 through the spring blocking head 1, the spring blocking chamber 35, the clearance between the shutoff valve 13 and the outer pipe 19 and the clearance between the bearing seat 30 and the inner pipe 20 and the outer pipe 19, cools and flushes the drill bit 26, and discharges the ground from the clearance between the outer pipe 19 and the drilling hole; when the core in the inner tube 20 is fully jacked to the inner tube connector 28, the inner tube 20 and the inner tube connector 28 are pushed to move upwards, the bearing seat 30, the rear check ring 14, the shutoff valve 13 and the check ring 12 are simultaneously pushed to move upwards, under the limit of the limit screw 11, the shutoff valve 13 is extruded to be matched with the outer tube 19 so as to block the original waterway, and flushing fluid cannot move downwards to increase the pressure, so that the pressure can be salvaged.
When the spear is fished, the spear head 2 is pulled, the spring clamp 4 is contracted, the spring clamp is released from the spring clamp chamber 35, the suspension ring 9 is separated from the seat ring 10, the upper blocking spring 21 and the lower blocking spring 24 at the bottom of the inner tube 20 tightly hold the rock core, and the inner tube assembly is integrally lifted upwards from the suspension position.
Example 2
Further optimizing embodiment 1, the spring caliper 4 is composed of a pair of clamping pieces 41, and the pair of clamping pieces 41 are mounted on the spring clamping frame 33 through a pin shaft; the bottom of the spearhead 2 is provided with a spring caliper lock pin 62, and the spring caliper lock pin 62 is inserted into or withdrawn from the space between the upper ends of the two cards 41 in a matching manner.
The bullet clamping frame 33 sequentially comprises a spearhead sliding section 50, a bullet caliper mounting section 52, a recovery pipe limiting boss 54 and a mandrel connecting section 55 from top to bottom; the spearhead sliding section 50 is provided with a spearhead sliding hole 51 which is arranged along the up-down direction, the spearhead 2 is connected in the spearhead sliding section 50 in an up-down sliding way, the spearhead 2 is connected with a spearhead cylindrical pin 61, two ends of the spearhead cylindrical pin 61 are matched with the spearhead sliding hole 51 to slide up and down, and the spearhead sliding hole 51 is limited by the up-down inner edge of the spearhead sliding hole 51;
the spring caliper mounting section 52 is provided with a spring caliper mounting hole 53 connected with a spring caliper, the spring caliper is composed of two cards 41, the lower parts of the two cards 41 are rotatably connected with a spring caliper cylindrical pin 64, two ends of the spring caliper cylindrical pin 64 are connected with the spring caliper mounting hole 53, an inner spring 63 of the spring caliper is clamped between the two cards 41, and the inner spring 63 of the spring caliper is compressed between the two cards 41 and forces the two cards 41 to open outwards; the bullet calliper mounting section 52 lateral wall both sides have seted up interior bullet card via hole 58, interior bullet card via hole 58 is located bullet calliper mounting hole 53 top, and bullet calliper 4 open with the in-process of withdrawal, card 41 upper portion stretches out and withdraws from interior bullet card via hole 58, the plane that card 41 is located is perpendicular with the axial of bullet calliper mounting hole 53.
The outside of the spring clamping frame 33 is also sheathed with a recovery pipe 34 in a sliding way, and the recovery pipe 34 comprises a recovery pipe body 56; the two sides of the middle part of the recovery pipe body 56 are provided with outer spring card through holes 57, and the positions of the outer spring card through holes 57 are matched with the positions of the inner spring card through holes 58; the upper part of the recovery pipe body 56 is also provided with a spearhead cylindrical pin connecting hole 59, and two ends of the spearhead cylindrical pin 61 penetrate through the spearhead sliding hole 51 and then are connected with the spearhead cylindrical pin connecting hole 59; when the spearhead 2 slides up and down, the spearhead cylindrical pin 61 drives the bullet clamping frame 33 to synchronously move up and down; the lower edge of the outer spring card via 57 is provided with a spring caliper retraction bezel 60 that mates with the outer edge of the card 41.
The opening angle between the two cards 41 is 83 ° and the retraction angle is 80 °
When the drill rod needs to be lifted, the spearhead 2 is lifted, the bullet clamping frame 33 is driven to synchronously lift, the bullet clamping caliper retracts the inclined pushing surface 60 to lift, and the matching distance 65 is reduced; at the same time, the cylindrical pins 64 of the spring calipers are gradually pulled out from the space between the upper ends of the two cards 41, after the cylindrical pins 64 of the spring calipers are completely pulled out from the space between the upper ends of the two cards 41, the inclined pushing surfaces 60 of the spring calipers retract to be in matched contact with the outer edges of the cards 41, as the mandrel 16 is connected with the inner pipe joint 28, the bottom of the inner pipe 20 is tightly held with the core, the inclined pushing surfaces 60 of the spring calipers retract to force the cards 41 to overcome the shrinkage of the inner tension springs 63 of the spring calipers, the clamping connection of the spring calipers 4 and the spring blocking heads 1 is released, the spearhead 2 continues to move upwards, the cylindrical pins 61 of the spearhead are matched with the uppermost inner edge of the spearhead sliding holes 51, and the mandrel 16 and the inner pipe 20 are pulled up.
During the process of putting the inner pipe 20 into the outer pipe, the spearhead dragging cylindrical pin 61 is matched with the uppermost inner edge of the spearhead dragging sliding hole 51, the spring caliper retraction inclined pushing surface 60 is matched and contacted with the outer edge of the clamping piece 41, the spring caliper is in a retraction state, when the hanging cup is matched and contacted with the seat ring, the weight of the spring caliper 33 is supported on the seat ring, the spearhead dragging 2 continues to move downwards and drives the recovery pipe 34 to move downwards, the spring caliper retraction inclined pushing surface 60 is gradually separated from the outer edge of the clamping piece 41, the clamping piece 41 is opened under the elasticity of the tension spring 63 in the spring caliper and is matched with the spring caliper chamber, the spearhead dragging 2 continues to move downwards, the spring caliper cylindrical pin 64 is inserted into the space between the upper ends of the two clamping pieces 41, and the spring caliper 4 is thoroughly prevented from retracting and pushing upwards under the action of upward pressure at the bottom in the drilling process.
Preferably, the opening angle between the two cards 41 is 83 degrees and the retraction angle is 80 degrees. The smaller angle change can further shorten the length of the inner tube.
The upper ejection sliding is the matching position of the spring clamp 4 and the lower end of the spring clamp stop head 1, and the spring clamp 4 slides out of the spring clamp chamber 35 due to the upper ejection pressure of the lower core, so that the spring clamp cannot core due to the limit failure of the lower end of the spring clamp stop head 1.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (1)
1. An exploration rope core drill, characterized in that: the device comprises an outer tube assembly and an inner tube assembly matched with the outer tube assembly for use, wherein the outer tube assembly comprises a spring clamping head (1), a spring clamping chamber (35), a seat ring (10), an outer tube (19) and a drill bit (26); the inner pipe assembly comprises a spearhead (2) matched with the bullet blocking head (1), a bullet blocking frame (33), a bullet caliper (4) matched and blocked with a bullet blocking chamber (35), a recovery pipe (34), a suspension ring (9) matched and suspended with the seat ring (10), a mandrel (16) and an inner pipe (20);
the spearhead (2) is connected with the spring clamping frame (33); one end of the spring clamp (4) far away from the spearhead (2) is movably connected with the spring clamp frame (33) through a pin shaft; the elastic clamping frame (33) is sleeved with a recovery pipe (34); the upper end of the mandrel (16) is connected with the spring clamping frame (33); the core shaft (16) is sequentially sleeved with a check ring (12), a shut-off valve (13), a rear check ring (14), a bearing seat (30) and a buffer pad (15) from top to bottom, a thrust ball bearing (29) is arranged in the bearing seat (30), the check ring (12), the shut-off valve (13), the rear check ring (14) and the thrust ball bearing (29) are supported on the buffer pad (15), and the buffer pad (15) is fixed at the bottom end of the core shaft (16); the lower end of the bearing seat (30) is connected with an inner pipe joint (28), and the inner pipe joint (28) is connected with the inner pipe (20); the top of the inner pipe (20) is provided with a drainage channel, and the bottom of the inner pipe (20) is provided with a clamp spring;
the bullet clamp (4) consists of a pair of clamping pieces (41), and the pair of clamping pieces (41) are mounted on the bullet clamp frame (33) through pin shafts; the bottom of the spearhead (2) is provided with a spring caliper lock pin (62), and the spring caliper lock pin (62) is inserted into or withdrawn from a space between the upper ends of the two cards (41) in a matching way;
the bullet clamping frame (33) sequentially comprises a spearhead sliding section (50), a bullet caliper mounting section (52), a recovery pipe limiting boss (54) and a mandrel connecting section (55) from top to bottom; the spearhead sliding section (50) is provided with a spearhead sliding hole (51) which is formed in the vertical direction, the spearhead (2) is connected in the spearhead sliding section (50) in a vertical sliding mode, the spearhead (2) is connected with spearhead cylindrical pins (61), two ends of the spearhead cylindrical pins (61) are matched with the spearhead sliding hole (51) to slide up and down, and the spearhead sliding hole is limited by the upper inner edge and the lower inner edge of the spearhead sliding hole (51);
the spring caliper mounting section (52) is provided with a spring caliper mounting hole (53) connected with the spring caliper, the spring caliper consists of two clamping pieces (41), the lower parts of the two clamping pieces (41) are rotationally connected to a spring caliper cylindrical pin (64), two ends of the spring caliper cylindrical pin (64) are connected with the spring caliper mounting hole (53), an inner spring (63) of the spring caliper is clamped between the two clamping pieces (41), and the inner spring (63) of the spring caliper is compressed between the two clamping pieces (41) and forces the two clamping pieces (41) to open outwards; an inner spring card via hole (58) is formed in two sides of the side wall of the spring caliper mounting section (52), the inner spring card via hole (58) is located above the spring caliper mounting hole (53), and in the opening and retracting process of the spring caliper (4), the upper part of the card (41) extends out of and retracts from the inner spring card via hole (58), and the plane of the card (41) is perpendicular to the axial direction of the spring caliper mounting hole (53);
the outside of the spring clamping frame (33) is also sheathed with a recovery pipe (34) in a sliding manner, and the recovery pipe (34) comprises a recovery pipe body (56); the two sides of the middle part of the recovery pipe body (56) are provided with outer spring card through holes (57), and the positions of the outer spring card through holes are matched with the inner spring card through holes (58); the upper part of the recovery pipe body (56) is also provided with a spearhead cylindrical pin connecting hole (59), and two ends of the spearhead cylindrical pin (61) penetrate through the spearhead sliding hole (51) and then are connected with the spearhead cylindrical pin connecting hole (59); when the spearhead (2) slides up and down, the spearhead cylindrical pin (61) drives the spring clamping frame (33) to synchronously move up and down; the lower edge of the outer spring card through hole (57) is provided with a spring caliper retraction inclined pushing surface (60) matched with the outer edge of the card (41);
the opening angle between the two cards (41) is 83 degrees, and the retraction angle is 80 degrees;
an upper clamping spring seat (23) and a lower clamping spring seat (25) are respectively arranged in the inner tube (20) from top to bottom, an upper blocking spring (21) is arranged above the upper clamping spring seat (23), and a lower blocking spring (24) is arranged above the lower clamping spring seat (25);
an upper reamer (32) and a lower reamer (27) are respectively arranged at the upper part and the lower part of the outer tube (19); a centralizing ring (22) is sleeved at the lower part of the inner pipe (30);
a limit screw (11) is further arranged between the spring clamping frame (33) and the check ring (12); a sealing felt (31) is arranged between the rear retainer ring (14) and the thrust ball bearing (29);
a steel ball (17) for preventing water from entering the inner tube (20) from the drainage channel is arranged in the drainage channel arranged at the top of the inner tube (20);
the total length of the drilling tool is 628cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368203.4A CN108360993B (en) | 2018-04-23 | 2018-04-23 | Exploration rope core drill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368203.4A CN108360993B (en) | 2018-04-23 | 2018-04-23 | Exploration rope core drill |
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| CN108360993A CN108360993A (en) | 2018-08-03 |
| CN108360993B true CN108360993B (en) | 2024-03-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681194A (en) * | 2019-02-13 | 2019-04-26 | 中国地质科学院 | A kind of wire line coring measurement while drilling and information fishing device |
| CN110984878B (en) * | 2019-11-08 | 2021-09-10 | 长江岩土工程有限公司 | Rope coring drilling device for urban deep-buried tunnel exploration hole |
| CN111173467B (en) * | 2020-03-03 | 2024-04-12 | 湖南科技大学 | Rope coring drilling tool suitable for heavy-calibre geological drilling |
| CN111119776B (en) * | 2020-03-03 | 2024-04-09 | 湖南科技大学 | Rope core drilling tool suitable for large-caliber horizontal engineering geological exploration |
| CN111577181B (en) * | 2020-04-30 | 2022-03-29 | 北京探矿工程研究所 | Hydraulic propelling rotary type rope coring drilling system and coring method thereof |
| CN113236166B (en) * | 2021-05-24 | 2024-01-26 | 四川大学 | Locking and unlocking spring card structure, coring device and use method thereof |
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| US5339915A (en) * | 1991-10-18 | 1994-08-23 | Jks Boyles International, Inc. | Drilling apparatus, particularly wire line core drilling apparatus |
| US6216804B1 (en) * | 1998-07-29 | 2001-04-17 | James T. Aumann | Apparatus for recovering core samples under pressure |
| CA2522993A1 (en) * | 2003-04-24 | 2004-11-04 | Shell Canada Limited | Well string assembly |
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| CN108360993A (en) | 2018-08-03 |
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