CN208830925U - A kind of boring and coring device - Google Patents

A kind of boring and coring device Download PDF

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Publication number
CN208830925U
CN208830925U CN201821151613.5U CN201821151613U CN208830925U CN 208830925 U CN208830925 U CN 208830925U CN 201821151613 U CN201821151613 U CN 201821151613U CN 208830925 U CN208830925 U CN 208830925U
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CN
China
Prior art keywords
coring
core
boring
drill stem
core barrel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201821151613.5U
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Chinese (zh)
Inventor
陈文斌
夏抗生
余熠
程海燕
李琰庆
朱学全
程念东
阳骏
邱国涛
焦志军
彭行球
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Huainan Mining Group Co Ltd
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Huainan Mining Group Co Ltd
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Publication date
Application filed by Huainan Mining Group Co Ltd filed Critical Huainan Mining Group Co Ltd
Priority to CN201821151613.5U priority Critical patent/CN208830925U/en
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Publication of CN208830925U publication Critical patent/CN208830925U/en
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Abstract

The utility model discloses a kind of boring and coring devices, including core barrel, coring bit, outer flush drill stem and tap, the core barrel bottom end connects coring bit, core barrel upper end connects outer flush drill stem by thread bush, the outer flush drill stem upper end connects tap, is equipped with coring card in the core barrel.The utility model has the advantage of by jumping a queue for coring card, increase the frictional force between core and core barrel, reduce the landing of core, improve core-taking rate;The device is easy to process, at low cost, easy to operate simultaneously, greatly saves labour.

Description

A kind of boring and coring device
Technical field
The utility model relates to coal drilling technique field, specially a kind of boring and coring device.
Background technique
Coring is that the rock of underground is got on ground blockingly using special coring tool in drilling process, This blocking rock is called core, can detecte the various properties of rock by it, intuitively Study of The Underground construction and rock Depositional environment understands fluid properties therein etc., in mineral exploration and development process, needs the stratigraphic horizon by geological design And depth, carry out drilling work, the tripping in coring tool into well, the rock sample drilled through out.Core be understand subsurface formations and Most intuitive, the most realistic data of feature containing mine;At present in underground coal mine, to the lower into rock-boring work progress of wide-angle, Core in core barrel is by drilling rod rotation disturbance, and core self weight strikes when unloading drilling rod and pounds drilling rod, the factors such as flushing liquor in drilling It influences, be easy to cause core broken and core skids off core barrel, cause coring difficult, core-taking rate is low.
Utility model content
The technical problem to be solved by the utility model is to: prior art coring is easily broken and core skids off core Pipe causes coring difficult, the low problem of core-taking rate.
In order to solve the above technical problems, the utility model provides the following technical solutions:
A kind of boring and coring device, including core barrel, coring bit, outer flush drill stem and tap, the core barrel bottom end Coring bit is connected, core barrel upper end connects outer flush drill stem by thread bush, and the outer flush drill stem upper end connects tap, described Coring card is equipped in core barrel.
Preferably, it is round thread on the inside of described thread bush one end, is tapered tread on the inside of the other end.
Preferably, the core pipe diameter is greater than the diameter of outer flush drill stem.
Preferably, the outer flush drill stem internal diameter is greater than coring card diameter.
Preferably, the quantity of the coring card is 6.
Preferably, the tap connects water system.
Compared with prior art, the utility model has the beneficial effects that
1. the gap between core and core barrel is jumped a queue by coring card, increase rubbing between core and core barrel Power is wiped, the landing of core is reduced, improves core-taking rate;
2. the device is easy to process, at low cost, easy to operate, labour is greatly saved.
Detailed description of the invention
Fig. 1 is a kind of structural plan figure of boring and coring device of the utility model embodiment;
In figure: 1- core barrel, 2- coring bit, the outer flush drill stem of 3-, 4- tap, 5- thread bush, 6- coring card.
Specific embodiment
For convenient for those skilled in the art understand that technical solutions of the utility model, practical new to this now in conjunction with Figure of description Type technical solution is described further.
Refering to fig. 1, present embodiment discloses a kind of boring and coring devices, including core barrel 1, coring bit 2, outer flush drill stem 3 and tap 4,1 bottom end of core barrel connects coring bit 2, and 1 upper end of core barrel connects outer flush drill stem 3 by thread bush 5, 3 upper end of outer flush drill stem connects tap 4, is equipped with coring card 6 in the core barrel 1.
Further, it is round thread on the inside of described 5 one end of thread bush, is tapered tread on the inside of the other end.
Further, 1 diameter of core barrel is greater than the diameter of outer flush drill stem 3.
Further, 3 internal diameter of outer flush drill stem is greater than 5 diameter of coring card.
Further, the quantity of the coring card 6 is 6, and the quantity of the coring card 6 is not limited to 6, according to core barrel 1 diameter and length are arranged;Coring card is arranged between the core gap in 1 inner wall of core barrel and pipe, increases core and core barrel 1 Frictional force between inner wall squeeze to core and jump a queue, prevents falling off for core, coring card described in the present embodiment 6 is distinguished The lower end, centre and upper end of basket 1 are set, and each number of positions is set as 2.
Further, the tap 4 connects water system.
The working principle of the utility model is: first light pressure slow-motion drilling construction stops boring after 1 coring of core barrel Into with close water system, unload tap 4, coring card 6 be put into outer flush drill stem 3, then by tap 4 and outer flush drill stem 3 tighten, and then open water system, boot up drilling, and using the rotation of outer flush drill stem 3, centrifugal force when using rotation will Coring card 6 is sent into 1 inner wall of core barrel and jumps a queue with the core gap location in pipe, increases frictional force, is moved back after the completion of jumping a queue It bores, then successively takes out core and coring card 6 out of core barrel 1.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein, and should not treat any reference in the claims as limiting Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of boring and coring device, it is characterised in that: including core barrel, coring bit, outer flush drill stem and tap, the rock Core pipe bottom end connects coring bit, and core barrel upper end connects outer flush drill stem by thread bush, and the outer flush drill stem upper end connects water Faucet, the core barrel is interior to be equipped with coring card.
2. a kind of boring and coring device according to claim 1, it is characterised in that: be circle spiral shell on the inside of described thread bush one end Line, other end inside are tapered tread.
3. a kind of boring and coring device according to claim 1, it is characterised in that: the core pipe diameter is greater than outer flat drill The diameter of bar.
4. a kind of boring and coring device according to claim 1, it is characterised in that: the outer flush drill stem internal diameter is greater than coring Card diameter.
5. a kind of boring and coring device according to claim 1, it is characterised in that: the quantity of the coring card is 6.
6. a kind of boring and coring device according to claim 1, it is characterised in that: the tap connects water system.
CN201821151613.5U 2018-07-20 2018-07-20 A kind of boring and coring device Active CN208830925U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821151613.5U CN208830925U (en) 2018-07-20 2018-07-20 A kind of boring and coring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821151613.5U CN208830925U (en) 2018-07-20 2018-07-20 A kind of boring and coring device

Publications (1)

Publication Number Publication Date
CN208830925U true CN208830925U (en) 2019-05-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821151613.5U Active CN208830925U (en) 2018-07-20 2018-07-20 A kind of boring and coring device

Country Status (1)

Country Link
CN (1) CN208830925U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110685627A (en) * 2019-11-07 2020-01-14 淮南矿业(集团)有限责任公司 Large-diameter drilling coring device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110685627A (en) * 2019-11-07 2020-01-14 淮南矿业(集团)有限责任公司 Large-diameter drilling coring device and method

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