CN102268970A - Core catching mechanism - Google Patents
Core catching mechanism Download PDFInfo
- Publication number
- CN102268970A CN102268970A CN2011101865081A CN201110186508A CN102268970A CN 102268970 A CN102268970 A CN 102268970A CN 2011101865081 A CN2011101865081 A CN 2011101865081A CN 201110186508 A CN201110186508 A CN 201110186508A CN 102268970 A CN102268970 A CN 102268970A
- Authority
- CN
- China
- Prior art keywords
- clamp spring
- core
- spring seat
- inner pipe
- jump ring
- 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.)
- Pending
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- Earth Drilling (AREA)
Abstract
The invention relates to a core catching mechanism which comprises an inner pipe, a clamp spring seat, a check ring and a clamp spring, wherein the clamp spring seat and the inner pipe are in threaded connection; the clamp spring clings in the clamp spring seat by use of the self elastic tension; and the check ring is located in a radial groove of the clamp spring seat so as to prevent the clamp spring from exiting backwards. A groove is arranged on the inner wall of the clamp spring; and a taper is arranged at the matching place between the clamp spring and the clamp spring seat. The core catching mechanism provided by the invention has a simple, compact and reasonable structure, can reliably realize a catching function when the inner pipe salves the core in the drilling operation, and is safe and reliable and easy to operate in comparison with other mechanisms of the same kind; and moreover, the easily-damaged parts are very convenient to replace: the clamp spring is arranged in the clamp spring seat and connected with the inner pipe and tightened by tension so as to realize automatic fracture between the core and the stratum and realize the function of upwards extracting the core and sampling of the inner pipe; and the core catching mechanism is suitable for the popularization and application on multiple kinds of core drills, and can adapt to the remarkably hostile working environments.
Description
Technical field
The present invention relates to a kind of rock core and put off mechanism, specifically in the drilling operation process, do not extract drilling rod, and, belong to the boring tool field of engineering machinery (rig) by the device of directly fishing for core in the drilling rod.
Background technology
In the core drilling work progress, when in the drilling rod pipe core fill put in place after, need core be extracted into work plane by certain method, traditional method is a whole set of drilling rod to be carried to work plane take out core again, the core poor quality that the method not only takes time and effort and fishes for influences the accuracy of sample analysis.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of rock core to put off mechanism, this mechanism only needs interior pipe is upwards extracted, and the jump ring structure in the interior pipe can pull off core dexterously, and it is rapid to put off the process of core, reliable in action.
According to technical scheme provided by the invention, rock core puts off mechanism and comprises interior pipe, clip spring seat, back-up ring and jump ring; Described clip spring seat and interior pipe are by thread connection, and jump ring is close in the clip spring seat by the elasticity tension of self, and back-up ring is positioned at the radial slot of clip spring seat, can prevent that jump ring from withdrawing from backward.
Further improve as the present invention, offer groove on the described jump ring inwall, described jump ring and clip spring seat cooperation place are respectively equipped with tapering.
Compared with the prior art the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; One when pipe is salvaged core in the time of realizing drilling operation reliably puts off function, compare other similar mechanism, safe and reliable, processing ease, consumable accessory is changed very convenient: jump ring is built in clip spring seat also links with interior pipe, tightened up by pulling force, can realize the automatic fracture on core and stratum, thereby pipe up extracts the function of core sampling in realizing, is fit to applying on the multiple core drilling tool series, and can adapts to the working environment of very severe.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1: pipe 1, clip spring seat 2, back-up ring 3 and jump ring 4 in comprising.
Described clip spring seat 2 and interior pipe 1 are by thread connection, and jump ring 4 is close in the clip spring seat 2 by the elasticity tension of self, has back-up ring 3 to block the effect of retaining with interior pipe 1 connection place.Core is up walked by pipe 1 in jump ring 4, back-up ring 3, the arrival when bit bore; When core fill put in place after, when needing to extract core, pipe 1 in operating personnel's starting drive is upwards carried, the jump ring 4 that has groove is influenced by elastic force to block core can't be up, and jump ring 4 has certain taper with clip spring seat 2 cooperation places, and clip spring seat 2 up jump rings 4 are received tighter and tighter, under the interaction of power, core ruptures herein, and interior pipe just can will come on the sample extraction smoothly.
The course of work of the present invention
1, the process that enters of core
When spark in going down process, core enters jump ring 4 again by clip spring seat 2, jump ring 4 is walked on can't continuing because of back-up ring 3 cuts off, core continues to make progress away and enters interior pipe, after core injects jump ring 4, originally have certain flexible jump ring 4 and propped up the inwall of being close to clip spring seat 2 by core, and because of jump ring 4 and clip spring seat 2 all have certain taper, jump ring 4 up walked to arrive maximum gauge along with core when core injected.
2, put off the process of core
After core puts in place, operating personnel up promote interior pipe 1, jump ring 4 clamps core can't be up, because of clip spring seat 2 lower end taperings less, and because the jump ring inwall is firmly held tightly herein by many groove structure cores, the core of embracing tightens gradually in the jump ring 4 descending processes, disconnects with top herein until core, and interior pipe 1 just can be pulled core out smoothly.
Claims (3)
1. a rock core puts off mechanism, it is characterized in that: comprise interior pipe (1), clip spring seat (2), back-up ring (3) and jump ring (4); Described clip spring seat (2) and interior pipe (1) are by thread connection, and jump ring (4) is close in the clip spring seat (2) by the elasticity tension of self, and back-up ring (3) is positioned at the radial slot of clip spring seat (2), prevents that jump ring (3) from withdrawing from backward.
2. rock core as claimed in claim 1 puts off mechanism, it is characterized in that: offer groove on described jump ring (4) inwall.
3. rock core as claimed in claim 1 puts off mechanism, it is characterized in that: described jump ring (4) is respectively equipped with tapering with clip spring seat (2) cooperation place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101865081A CN102268970A (en) | 2011-07-05 | 2011-07-05 | Core catching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101865081A CN102268970A (en) | 2011-07-05 | 2011-07-05 | Core catching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102268970A true CN102268970A (en) | 2011-12-07 |
Family
ID=45051397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101865081A Pending CN102268970A (en) | 2011-07-05 | 2011-07-05 | Core catching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102268970A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529062A (en) * | 2019-09-23 | 2019-12-03 | 赤峰市浩峰钻机有限责任公司 | A kind of prestress wire core barrel that can pulverize rock slag |
| CN113653455A (en) * | 2021-10-19 | 2021-11-16 | 中煤科工集团西安研究院有限公司 | Coal seam and soft rock stratum drilling while-drilling airtight coring device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10038315A1 (en) * | 2000-08-05 | 2002-02-14 | Peter Hartwiger | Drill pipe rod, to take a soil sample, has a sample holder section of two pipe shell segments with independent movement to take the sample easily and rapidly for trouble-free evaluation |
| US6425449B1 (en) * | 2001-02-08 | 2002-07-30 | Boart Longyear International Holdings, Inc. | Up-hole pump-in core barrel apparatus |
| DE19744211C2 (en) * | 1997-09-27 | 2002-12-12 | Stiftung A Wegener Inst Polar | Ice drill for the extraction of sea ice cores |
| CN201507260U (en) * | 2009-09-18 | 2010-06-16 | 安徽两淮科力机械制造有限责任公司 | Single-action snap spring catcher for corers |
| CN101936143A (en) * | 2010-08-31 | 2011-01-05 | 江苏省无锡探矿机械总厂有限公司 | Reclaimable drilling rig device |
| CN201723190U (en) * | 2010-06-10 | 2011-01-26 | 大庆油田有限责任公司 | Unconsolidated deposit hydraulic pressure type sealed coring tool |
-
2011
- 2011-07-05 CN CN2011101865081A patent/CN102268970A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19744211C2 (en) * | 1997-09-27 | 2002-12-12 | Stiftung A Wegener Inst Polar | Ice drill for the extraction of sea ice cores |
| DE10038315A1 (en) * | 2000-08-05 | 2002-02-14 | Peter Hartwiger | Drill pipe rod, to take a soil sample, has a sample holder section of two pipe shell segments with independent movement to take the sample easily and rapidly for trouble-free evaluation |
| US6425449B1 (en) * | 2001-02-08 | 2002-07-30 | Boart Longyear International Holdings, Inc. | Up-hole pump-in core barrel apparatus |
| CN201507260U (en) * | 2009-09-18 | 2010-06-16 | 安徽两淮科力机械制造有限责任公司 | Single-action snap spring catcher for corers |
| CN201723190U (en) * | 2010-06-10 | 2011-01-26 | 大庆油田有限责任公司 | Unconsolidated deposit hydraulic pressure type sealed coring tool |
| CN101936143A (en) * | 2010-08-31 | 2011-01-05 | 江苏省无锡探矿机械总厂有限公司 | Reclaimable drilling rig device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529062A (en) * | 2019-09-23 | 2019-12-03 | 赤峰市浩峰钻机有限责任公司 | A kind of prestress wire core barrel that can pulverize rock slag |
| CN113653455A (en) * | 2021-10-19 | 2021-11-16 | 中煤科工集团西安研究院有限公司 | Coal seam and soft rock stratum drilling while-drilling airtight coring device and method |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111207 |