CN108661581A - A kind of closing component of the coring soft bag with comb-tooth-type limiter - Google Patents

A kind of closing component of the coring soft bag with comb-tooth-type limiter Download PDF

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Publication number
CN108661581A
CN108661581A CN201810400776.0A CN201810400776A CN108661581A CN 108661581 A CN108661581 A CN 108661581A CN 201810400776 A CN201810400776 A CN 201810400776A CN 108661581 A CN108661581 A CN 108661581A
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CN
China
Prior art keywords
comb
tooth
corer
soft bag
type limiter
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Granted
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CN201810400776.0A
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Chinese (zh)
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CN108661581B (en
Inventor
孙京
姜生元
梁杰能
马超
刘飞
邓宗全
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Harbin Institute of Technology
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Harbin Institute of Technology
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Priority to CN201810400776.0A priority Critical patent/CN108661581B/en
Publication of CN108661581A publication Critical patent/CN108661581A/en
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Publication of CN108661581B publication Critical patent/CN108661581B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
    • E21B25/005Above ground means for handling the core, e.g. for extracting the core from the core barrel
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
    • E21B25/02Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
    • E21B25/06Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver having a flexible liner or inflatable retaining means

Abstract

The present invention provides a kind of closing component of the coring soft bag with comb-tooth-type limiter, including coring mechanism, setting fastening mechanism and comb-tooth-type limiter, coring mechanism includes rope, soft bag, corer and outer protection tube, the inner wall of comb-tooth-type limiter and coring pipe end mating part is equipped with corer centering anchor ring, in the circumferentially uniformly distributed multiple protrusions in the upper end of corer centering anchor ring, it is equipped with gap between two neighboring protrusion, it is connected to strip there are one setting below each gap and holds wire casing, it is equipped with annular on the corresponding comb-tooth-type limiter inner wall of raised radial outside and holds ball groove, protrusion is corresponding with annular appearance ball groove position, setting fastening mechanism includes sealing, fisherman's bend and spacing ball.The present invention realizes in drilling process with the packaging effect for boring sealing and multiple tracks sealing, sampling package reliability is improved, by reducing the random eccentricity of corer, reduce drilling process and capping processes puies forward core power, reduction carries core fluctuation, ensures that lunar exploration sampling engineering is smoothly implemented.

Description

A kind of closing component of the coring soft bag with comb-tooth-type limiter
Technical field
The invention belongs to lunar surfaces to drill through sampling encapsulation technology field, more particularly, to a kind of coring soft bag with comb-tooth-type The closing component of limiter.
Background technology
China Lunar Exploration Program point " around, fall, return " three-step-march, around the moon and fall moon task and satisfactorily completed, the moon is sampled and returned The vital task that the earth has become China's moon exploration program is returned, since lunar surface sampling operation operating mode is complicated, lunar surface environment and operation soil Earth all has uncertain feature, and realizing row, nobody drills through acquisition and packaged sample task seems particularly troublesome.Current brill Core mechanism of keeping forging ahead mainly is made of drilling unit and coring encapsulation unit, wherein coring encapsulation unit carries sample extraction and appoints Business, is the important leverage link that sample successfully returns, and reliable sealing effect how is realized under unknown lunar soil operating mode, and fully Play equipment performance, realize sample is packaged to greatest extent be sample encapsulation design difficulty.
Invention content
In view of this, the present invention is directed to propose a kind of closing component of the coring soft bag with comb-tooth-type limiter, is realized With the packaging effect for boring sealing and multiple tracks sealing in drilling process, sampling package reliability is improved, it is random by reducing corer Eccentricity, reduction drilling process and capping processes put forward core power, and reduction carries core fluctuation, ensure that lunar exploration sampling engineering is smoothly real It applies.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way:
A kind of closing component of the coring soft bag with comb-tooth-type limiter, including coring mechanism, setting fastening mechanism and broach Formula limiter, the coring mechanism include rope, soft bag, corer and outer protection tube, and one end of the rope will be soft A wherein open end for bag is tied to form closed end, and the other end of the rope is connect inside corer with external firmware, On the outer wall of another open end set setting corer of the soft bag, the outer protection tube is located at outside corer, and coaxial Setting;
One end of the comb-tooth-type limiter is fixedly connected with outer protection tube end, and the other end is matched with cavity gap in drill bit It closes, the comb-tooth-type limiter is located at outside corer, and is coaxially disposed;
The comb-tooth-type limiter is irregular wall thickness class cylinder nested structure, the comb-tooth-type limiter and corer The inner wall of end mating part is equipped with corer centering anchor ring, circumferentially uniformly distributed multiple convex in the upper end of corer centering anchor ring It rises, gap is equipped between the two neighboring protrusion, strip there are one setting is connected to below each gap and holds wire casing, in protrusion The corresponding comb-tooth-type limiter inner wall of radial outside holds ball groove equipped with annular, and the protrusion is opposite with annular appearance ball groove position It answers;
The setting fastening mechanism includes that sealing, fisherman's bend and spacing ball, the sealing are woven in the warp of soft bag, The radially opposite sides of the soft bag reserve each two drawstrings and form fisherman's bend, the ends of two drawstrings of homonymy setting with one Spacing ball is fixedly connected, and fracture region is formed between each spacing ball and respective side fisherman's bend.
Further, the fracture region is that a wherein drawstring for establishment fisherman's bend stretches and spacing ball is glued, establishment It is glued again with spacing ball after another drawstring of fisherman's bend is one section reserved.
Further, the protrusion is semi-cylindrical protrusion or semi-conical protrusion, and the top of protrusion is hemispherical junction Structure.
Further, the outer protection tube top is connected with corer top using pin, comb-tooth-type limiter top It is connect with outer protection tube spiral by the screw thread for being arranged in outer protection tube exterior end.
Further, the gap between the corer centering anchor ring and the outer wall of corer of the comb-tooth-type limiter is 0.6mm。
Further, the comb-tooth-type limiter has corer in axial direction the centering support section of 6mm.
Further, the rope is that Kevlar fibers are integrated weaved with soft bag.
Further, multigroup setting fastening mechanism is arranged in uniform intervals along the length direction of the soft bag.
Compared with the existing technology, a kind of coring soft bag of the present invention has with the closing component with comb-tooth-type limiter There is following advantage:
A kind of closing component of the coring soft bag with comb-tooth-type limiter of the present invention, comb-tooth-type limiter can be more Spacing ball in secondary utilization, with multiple tracks sealing forms the coring packing forms of " one-to-many ", increases sealing quantity;Protrusion, which is located at, to be taken Core pipe centering anchor ring upper end, cooperation spacing ball use, and can reduce sealing stroke, increase sample package length;Using radial dimension Small fisherman's bend fully empty profit can turn down space, and coordinate with spacing ball, and so that drawstring is determined region, gradually stress is broken, and improves envelope Mouth reliability;Limiter is equipped with strip and holds wire casing, can optimize fracture drawstring Path of Force Transfer;Interdigitated electrode structure oversheath reduces corer Radial clearance between oversheath plays the role of centering support to corer, can reduce in drilling process and capping processes It puies forward core power and carries core fluctuation, be conducive to sample devices performance and give full play to.The above is conducive to raising sampling encapsulation can By property.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of structure of closing component of the coring soft bag with comb-tooth-type limiter described in the embodiment of the present invention Schematic diagram;
Fig. 2 is a kind of coring soft bag broach in the closing component with comb-tooth-type limiter described in the embodiment of the present invention The structural schematic diagram of formula limiter;
Fig. 3 is the structural schematic diagram of fisherman's bend and spacing ball.
Reference sign:
1- soft bags, 2- corers, 3- sealings, 4- spacing balls, 5- fisherman's bends, 6- comb-tooth-type limiters, the centering of 61- corers Anchor ring, 62- protrusions, 63- annulars hold ball groove, and 64- strips hold wire casing, 7- outer protection tubes, 8- drill bits, 9- ropes.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1-Figure 3, a kind of closing component of the coring soft bag with comb-tooth-type limiter, including coring mechanism, Setting fastening mechanism and comb-tooth-type limiter 6, the coring mechanism include rope 9, soft bag 1, corer 2 and outer protection tube 7, described One end of rope 9 a wherein open end for soft bag 1 is tied to form closed end, the other end of the rope 9 runs through coring 2 inside of pipe is connect with external firmware, on the outer wall of another open end set setting corer 2 of the soft bag 1, the outer shield Pipe 7 is located at outside corer 2, and is coaxially disposed;
One end of the comb-tooth-type limiter 6 is fixedly connected with 7 end of outer protection tube, the other end and cavity gap in drill bit 8 Cooperation, the comb-tooth-type limiter 6 are located at outside corer 2, and are coaxially disposed;
The comb-tooth-type limiter 6 is irregular wall thickness class cylinder nested structure, the comb-tooth-type limiter 6 and coring The inner wall of 2 end mating part of pipe is equipped with corer centering anchor ring 61, circumferentially uniformly distributed in the upper end of corer centering anchor ring 61 It is equipped with gap between multiple raised 62, two neighboring described raised 62, strip there are one setting is connected to below each gap and is held Wire casing 64 is equipped with annular on corresponding 6 inner wall of comb-tooth-type limiter of raised 62 radial outsides and holds ball groove 63, described raised 62 with It is corresponding that annular holds 63 position of ball groove;
The setting fastening mechanism includes that sealing 3, fisherman's bend 5 and spacing ball 4, the sealing 3 are woven in the warp of soft bag 1 In, it reserves each two drawstrings in the radially opposite sides of the soft bag 1 and forms fisherman's bend 5, the end of two drawstrings of homonymy setting It is fixedly connected with a spacing ball 4, forms fracture region between each spacing ball 4 and respectively side fisherman's bend 5.
The wherein drawstring that region is establishment fisherman's bend 5 that is broken is stretched to be glued with spacing ball 4, works out the another of fisherman's bend 5 It is glued again with spacing ball 4 after a piece drawstring is one section reserved, this set may be implemented gradually to determine region stress fracture, improve fracture Controllability.
The material of spacing ball 4 is copper, and intermediate there are cable-through holes.
Protrusion 62 is semi-cylindrical protrusion or semi-conical protrusion, and the top of protrusion 62 is hemispherical configuration, spacing ball 4 When reaching at raised 62 positions, the strip that is formed between two neighboring raised 62, which holds wire casing 64, to be played and pair is connect with spacing ball 4 The guiding function of drawstring, under the collective effect of hemispherical configuration and drawstring, spacing ball 4, which is directed into annular, to be held in ball groove 63, Spacing ball 4 reaches after annular holds ball groove 63 and also generates position-limiting action to drawstring connected to it in turn.
7 top of outer protection tube is connected with 2 top of corer using pin, and 6 top of comb-tooth-type limiter is existed by setting The screw thread of 7 exterior end of outer protection tube is connect with 7 spiral of outer protection tube.
Since corer 2 and outer protection tube 7 are all the hollow thin-wall pipes more than two meters, radial clearance is unilateral 2mm, the work of cantilever The deflection deformation of 2mm is easily achieved under, in fact, it is essentially all eccentric later that corer 2 and outer protection tube 7, which assemble, , it is difficult to realize coaxial arrangement, therefore, link of feeling relieved is needed in drilling operation, and comb-tooth-type limiter 6 is just to corer 2 Certralizing ability is played, specific arrangement is as follows:The outer wall of corer centering anchor ring 61 and the corer 2 of comb-tooth-type limiter 6 it Between gap be 0.6mm, comb-tooth-type limiter 6 is axially having the limit section of 6mm to corer 2, can be to taking in drilling operation Core pipe 2 plays certralizing ability, solves corer 2 with into eccentric serious problems, reduction puies forward core power, and ensures that sample intake passage is smooth Property.
Rope 9 is that Kevlar fibers are integrated weaved with soft bag 1.
Multigroup setting fastening mechanism is arranged in uniform intervals along the length direction of soft bag 1, such as a system is arranged at interval of 0.5m Buckle mechanism can be achieved with the purpose just sealed every 0.5m, realize sealing for many times, both be convenient for carrying out the lunar soil of different depth Encapsulation is also conducive to emergency situations occur, such as encounters excessively severe lunar soil operating mode, when can not complete expected drilling depth, in time Soft bag 1 is sealed.
It is carrying out during lunar surface drills through sampling process, when drilling operation, drilling rod and drill bit are former by turning round, creeping into movement cutting Position lunar soil simultaneously forms sample, and soft bag rises traction by lifting and pulls in inside corer, this is sampled to fill.Meanwhile it being carried in soft bag Setting fastening component move therewith.After drilling, rope affects coring soft bag to go successively to inside corer, when spacing ball 4 When reaching at the protrusion 62 of comb-tooth-type limiter 6, guiding of the drawstring through gap and strip appearance wire casing 64 between protrusion 62 will Spacing ball 4 is directed to annular and holds ball groove 63, the 4 direct bearing drawstring other end of spacing ball connection sealing 3.Sealing 3 in soft bag 1 with ploughing under After corer 2, in sealing 1 after being completely drawn out of drawstring, the fracture of fracture region, 3 tightening of sealing will be in 2 inside soft bag 1 of corer Sample be packaged, complete sealing operation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.

Claims (8)

1. a kind of closing component of the coring soft bag with comb-tooth-type limiter, it is characterised in that:Including coring mechanism, setting fastening machine Structure and comb-tooth-type limiter (6), the coring mechanism include rope (9), soft bag (1), corer (2) and outer protection tube (7), A wherein open end for soft bag (1) is tied to form closed end by one end of the rope (9), the rope (9) it is another End is connect inside corer (2) with external firmware, another open end set setting corer (2) of the soft bag (1) On outer wall, the outer protection tube (7) is located at corer (2) outside, and is coaxially disposed;
One end of the comb-tooth-type limiter (6) is fixedly connected with outer protection tube (7) end, between the other end and drill bit (8) inner cavity Gap coordinates, and the comb-tooth-type limiter (6) is located at corer (2) outside, and is coaxially disposed;
The comb-tooth-type limiter (6) is irregular wall thickness class cylinder nested structure, the comb-tooth-type limiter (6) and coring The inner wall for managing (2) end mating part is equipped with corer centering anchor ring (61), in the upper end of corer centering anchor ring (61) week To uniformly multiple raised (62), it is equipped with gap between two neighboring raised (62), connection is equipped with below each gap One strip holds wire casing (64), and being equipped with annular on corresponding comb-tooth-type limiter (6) inner wall of raised (62) radial outside holds ball Slot (63), the protrusion (62) are corresponding with annular appearance ball groove (63) position;
The setting fastening mechanism includes that sealing (3), fisherman's bend (5) and spacing ball (4), the sealing (3) are woven in soft bag (1) Warp in, reserve each two drawstrings in the radially opposite sides of the soft bag (1) and form fisherman's bend (5), two of homonymy setting The end of drawstring is fixedly connected with a spacing ball (4), is formed between each spacing ball (4) and respective side fisherman's bend (5) broken Disconnected region.
2. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 1, it is characterised in that: The fracture region is that a wherein drawstring for establishment fisherman's bend (5) stretches and spacing ball (4) is glued, establishment fisherman's bend (5) It is glued again with spacing ball (4) after another drawstring is one section reserved.
3. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 2, it is characterised in that: The protrusion (62) is semi-cylindrical protrusion or semi-conical protrusion, and the top of raised (62) is hemispherical configuration.
4. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 1, it is characterised in that: Outer protection tube (7) top is connected with corer (2) top using pin, and comb-tooth-type limiter (6) top passes through setting It is connect with outer protection tube (7) spiral in the screw thread of outer protection tube (7) exterior end.
5. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to any one of claim 1-4, It is characterized in that:Gap between the corer centering anchor ring (61) and the outer wall of corer (2) of the comb-tooth-type limiter (6) For 0.6mm.
6. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 5, it is characterised in that: The comb-tooth-type limiter (6) is to corer (2) in the centering support section for axially having 6mm.
7. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 6, it is characterised in that: The rope (9) is that Kevlar fibers are integrated weaved with soft bag (1).
8. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 7, it is characterised in that: Multigroup setting fastening mechanism is arranged in the uniform intervals along the length direction of soft bag (1).
CN201810400776.0A 2018-04-28 2018-04-28 A kind of closing component of the coring soft bag with comb-tooth-type limiter Active CN108661581B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323884A (en) * 2018-11-27 2019-02-12 哈尔滨工业大学 A kind of star earth coring soft bag drawstring setting fastening Quick seal component
CN110552644A (en) * 2019-10-05 2019-12-10 中国石油大学(华东) In-situ coal rock heat-preservation pressure-maintaining coring device and application method

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CN105510078A (en) * 2015-11-27 2016-04-20 北京卫星制造厂 Built-in soft lunar soil sample sampling mechanism
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CN107313732A (en) * 2017-08-17 2017-11-03 北京探矿工程研究所 A kind of rope swinging heat-insulation pressure keeping Sampling driller
CN107503698A (en) * 2017-09-19 2017-12-22 哈尔滨工业大学 A kind of lunar soil drilling coring mechanism with guide ring
CN107777086A (en) * 2017-10-25 2018-03-09 哈尔滨工业大学 Lunar soil coring soft bag drawstring setting fastening closing component

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CN102498260A (en) * 2009-07-31 2012-06-13 霍利贝顿能源服务公司 Core drill and coring method
US20110198124A1 (en) * 2010-02-17 2011-08-18 Bijan Danesh Substantially simultaneous core containment, core retrieval and borehole abatement
CN201953332U (en) * 2010-12-14 2011-08-31 湖北地矿建设工程承包集团有限公司 Telescopic overlapped type flexible bag tube core taking inner tube
CN105510078A (en) * 2015-11-27 2016-04-20 北京卫星制造厂 Built-in soft lunar soil sample sampling mechanism
CN206035428U (en) * 2016-07-18 2017-03-22 中国石油集团西部钻探工程有限公司 Hydraulic pressure locking formula device of coring
CN107313732A (en) * 2017-08-17 2017-11-03 北京探矿工程研究所 A kind of rope swinging heat-insulation pressure keeping Sampling driller
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CN107777086A (en) * 2017-10-25 2018-03-09 哈尔滨工业大学 Lunar soil coring soft bag drawstring setting fastening closing component

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323884A (en) * 2018-11-27 2019-02-12 哈尔滨工业大学 A kind of star earth coring soft bag drawstring setting fastening Quick seal component
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CN110552644A (en) * 2019-10-05 2019-12-10 中国石油大学(华东) In-situ coal rock heat-preservation pressure-maintaining coring device and application method

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