CN104358817A - Deep sea sampling vibration absorber capable of preventing false triggering - Google Patents
Deep sea sampling vibration absorber capable of preventing false triggering Download PDFInfo
- Publication number
- CN104358817A CN104358817A CN201410584093.7A CN201410584093A CN104358817A CN 104358817 A CN104358817 A CN 104358817A CN 201410584093 A CN201410584093 A CN 201410584093A CN 104358817 A CN104358817 A CN 104358817A
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- CN
- China
- Prior art keywords
- sampling
- vibration absorber
- deep sea
- cylinder body
- cylinder block
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
Abstract
The invention relates to a deep sea sampling vibration absorber capable of preventing false triggering. The deep sea sampling vibration absorber is arranged between a supporting ballast device of a sampler and a sampling detector, and comprises a shaft extension piston rod and a cylinder block, wherein the head part of the shaft extension piston rod is connected with the supporting ballast device; the tail part of the cylinder block is connected with the sampling detector; the other end of the shaft extension piston rod is connected with a piston arranged inside the cylinder block; a check valve is arranged at the bottom of the cylinder block; a damping hole is formed in the side, close to the bottom, of the cylinder block. The deep sea sampling vibration absorber disclosed by the invention has the benefits that the vibration absorber can effectively relieve asynchronous vibration when the supporting ballast device of the sampler and the sampling detector are resonated, prevents the joint coupling switch from false triggering, improves the sampling reliability, and further improves the sampling efficiency.
Description
Technical field
The present invention relates to ocean environment detection sampling instrument field, the anti-error triggering vibration absorber of especially a kind of deep earth sampling.
Background technique
Current most of deep earth sampling device triggers sampling by machinery.Its principle is: when sample collector touches the end, Sample acquisition device touches end stopping, support ballast also descending, connect and receive the relative to displacement of them with connection coupled switch therebetween, relatively just open sampling switch near being displaced to setpoint distance, by a series of association machinery action, just complete taking of seabed mud sample water sample.Sample collector upper suspension wirerope, wirerope is transferred by the winch on ship, and a few km seabed transferred to by sample collector thereupon.Ocean are investigated and south poles investigation is adopted in this way substantially.Ocean are very dark, and the darkest Maria Na trench has upper myriametre dark, and due to the drift of ocean current and research ship, the wirerope of releasing can not be vertical so more.The deadweight of sample collector has 1-2 ton, and the every km of deadweight of wirerope also has more than 1 ton.During sampling, sample collector adds that the wirerope gross weight of releasing has several ton, even tens tons.The wirerope of several meters tens meters long seems rigidity very well, and be out of shape hardly, but the wirerope of a few km is relatively very low with regard to rigidity, the wirerope of a few km just has the distortion of ten or twenty rice.Sample collector adds that the wirerope of releasing naturally forms an elastic vibrating kinetoplast.In the process of putting wirerope, the rigidity of this elastic vibrating kinetoplast is reducing always, also means that the natural reonant frequency of the system of this elastic vibrating kinetoplast is reducing always.Deep-sea sea situation is very complicated, and surge, vertical ocean current, be all foreign impacts source, sample collector is transferred always, inevitably meets with system resonance, and sample collector also follows low-resonance.Support ballast and the Sample acquisition device mass profile of sample collector are different, add that seawater is high damping fluid, during resonance, it is asynchronous that both can produce vibration, just producing relative near moving, the misoperation of connection coupled switch will be made, open sampling switch.Like this, sampling is just caused to lose efficacy, even device damage.
During current most of deep earth sampling device sampling, a normal complete sampling flowsheet wants four or five hours.When transferring false triggering, just get less than sample, only have by the lowering velocity that slows down to scheme not produce resonance.Like this, sampling time is just longer.Even if slow down lowering velocity, also may get less than sample, repeatedly will transfer and just can get sample.This thing happens, and sampling efficiency is just very low, even, can not complete investigation task.Country organizes expert, professor carries out ocean investigation or south poles is investigated, and spend huge fund, time cost is very high, and the overall cost in each man-hour wants circle up to a million.Raising sampling efficiency and reliability just seem extremely important.Also just in the urgent need to a kind of device preventing deep earth sampling false triggering of the present invention, the reliability of sampling is improved.
Summary of the invention
The present invention will solve the shortcoming of above-mentioned prior art, provides a kind of anti-error triggering vibration absorber of deep earth sampling improving sampling efficiency and reliability.
The present invention solves the technological scheme that its technical problem adopts: the anti-error triggering vibration absorber of this deep earth sampling, be located between the support ballast of sample collector and Sample acquisition device, include head and the cylinder body supporting shaft extension piston rod, afterbody that ballast is connected and be connected with Sample acquisition device, the shaft extension piston rod the other end is connected with the piston be located in cylinder body, the bottom of cylinder body is provided with one-way valve, and cylinder body is provided with damping hole near bottom sides.
As preferably, between piston and cylinder base, be provided with weakening spring.
As preferably, described cylinder body, the diameter of piston can change, to mate the quality size of wanted weakening object.
As preferably, the rigidity of described weakening spring can change, to mate the quality size of wanted weakening object.
As preferably, the aperture of described weakening damping hole can change, to mate the quality size of wanted weakening object, and the seawater movement damping size suffered by it.
Inventing useful effect is: it is asynchronous that the present invention effectively can slow down the vibration that the support ballast of sample collector and Sample acquisition device can produce both when resonating, and stops the false triggering of connection coupled switch, improve sampling reliability, also just improve sampling efficiency.
Accompanying drawing explanation
Fig. 1 is use principle figure of the present invention:
Fig. 2 is structural representation of the present invention:
Fig. 3 is unidirectional damping structure enlarged diagram of the present invention:
Description of reference numerals: shaft extension piston rod 1, cylinder body 2, piston 3, weakening spring 4, weakening damping hole 5, one-way valve 6, supports ballast 7, link coupled switch 8, Sample acquisition device 9.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Embodiment: as shown in the figure, the anti-error triggering vibration absorber of a kind of deep earth sampling, be located between the support ballast 7 of sample collector and Sample acquisition device 9, include head and the cylinder body 2 supporting shaft extension piston rod 1, afterbody that ballast 7 is connected and be connected with Sample acquisition device 9, shaft extension piston rod 1 the other end is connected with the piston 3 be located in cylinder body 2, be provided with weakening spring 4 between bottom piston 3 and cylinder body 2, the bottom of cylinder body 2 is provided with one-way valve 6, and cylinder body 2 is provided with damping hole 5 near bottom sides.
When the support ballast 7 of sample collector is in resonance state with Sample acquisition device 9, it is asynchronous that both can produce vibration, just produces relative movement.Its relative movement is divided into two cycles, relative movement cycle and in opposite directions moving period, and alternate cycle repeatedly.During both relative movements (close), concerning connection coupled switch 8, be critical trends, just trigger connection coupled switch 8 close to certain distance.Both are when moving in opposite directions (separations), concerning connection coupled switch 8, be Security Trend to, preferably can quick separating, can be next time in the close cycle stops safe clearance.But it is exactly that mechanism is spacing that separation reaches certain distance, concerning connection coupled switch 8, be the safest stable state.
The effect of the anti-error triggering vibration absorber of deep earth sampling is exactly meet above-mentioned requirements: when resonance state, both relatively near time, both relative status enter near the cycle, under shaft extension piston rod 1 drives piston 3 relative, at this moment have two resistances to produce: one is weakening spring: 4 can block it moves down relatively, two is that one-way valve 6 is closed at that time, the seawater be enclosed in cylinder body 2 cavity of resorption can only be discharged from damping hole 5, piston 3 can only slowly move down relatively, makes it be not enough to reach triggering connection coupled switch 8 at the amount of movement near the cycle.By the time both relative status enter separation cycle, shaft extension piston rod 1 drive piston 3 relative on, at this moment, weakening spring 4 is supported relatively to move up, at this moment one-way valve 6 is opened, and seawater energy quick backflow enters in the cavity of resorption of cylinder body 2, and piston 3 also can move up by Rapid Relative.At this moment separate mobile, than near mobile faster, connect coupled switch 8 and goes out fast.If at separation cycle, separate mobile is insufficient, forwards the close cycle to regard to danger close, separation will be allowed as far as possible to reach the spacing distance of mechanism, enter safe stable state.But, too slowly sampling also can be allowed near mobile to touch the end and to trigger cisco unity malfunction, so during actual use, school blending is suitable as far as possible for this mechanism parameter, can avoid the false triggering of sampling decentralization process, can sample triggered as normal of the tactile end again.
In addition to the implementation, the present invention can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (2)
1. the anti-error triggering vibration absorber of deep earth sampling, be located between the support ballast (7) of sample collector and Sample acquisition device (9), it is characterized in that: include head and the cylinder body (2) supporting shaft extension piston rod (1), afterbody that ballast (7) is connected and be connected with Sample acquisition device (9), shaft extension piston rod (1) the other end is connected with the piston (3) be located in cylinder body (2), the bottom of cylinder body (2) is provided with one-way valve (6), and cylinder body (2) is provided with damping hole (5) near bottom sides.
2. the anti-error triggering vibration absorber of deep earth sampling according to claim 1, is characterized in that: be provided with weakening spring (4) between piston (3) and cylinder body (2) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584093.7A CN104358817B (en) | 2014-10-27 | 2014-10-27 | The anti-error triggering dashpot of a kind of deep earth sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584093.7A CN104358817B (en) | 2014-10-27 | 2014-10-27 | The anti-error triggering dashpot of a kind of deep earth sampling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104358817A true CN104358817A (en) | 2015-02-18 |
| CN104358817B CN104358817B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410584093.7A Active CN104358817B (en) | 2014-10-27 | 2014-10-27 | The anti-error triggering dashpot of a kind of deep earth sampling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964961A (en) * | 2020-10-09 | 2020-11-20 | 吉林大学 | Full-automatic under-ice sediment vibration sampler |
Citations (9)
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|---|---|---|---|---|
| CN87209127U (en) * | 1987-06-11 | 1988-02-17 | 中国科学院海洋研究所技术开发公司 | Safety gravity piston sampler |
| DE3635748A1 (en) * | 1986-10-15 | 1988-04-28 | Inst Chimii Akademii Nauk Esto | DEVICE FOR TAKING SAMPLES FROM SOIL DEPOSITS IN WATER |
| CN1064744A (en) * | 1991-03-11 | 1992-09-23 | 中国科学院声学研究所 | Underwater noise measuring system with submersible flag |
| CN2298527Y (en) * | 1997-02-27 | 1998-11-25 | 张少甲 | Improved vertical seismic profile logging instrument |
| RU2172822C2 (en) * | 1999-11-29 | 2001-08-27 | Гайфуллин Ахрар Зайнуллович | Percussive-drawdown bailer |
| CN200950569Y (en) * | 2006-07-20 | 2007-09-19 | 万步炎 | Converter for underwater electromechanical device |
| US20130025874A1 (en) * | 2011-07-30 | 2013-01-31 | Robert Saunders | System and method for sampling multiphase fluid at a production wellsite |
| CN103244506A (en) * | 2012-02-08 | 2013-08-14 | 中国石油化工股份有限公司 | Ocean structure underwater vertical butt joint buffer and slow descending device |
| CN204239587U (en) * | 2014-10-27 | 2015-04-01 | 章胜亮 | The anti-error triggering vibration absorber of deep earth sampling |
-
2014
- 2014-10-27 CN CN201410584093.7A patent/CN104358817B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3635748A1 (en) * | 1986-10-15 | 1988-04-28 | Inst Chimii Akademii Nauk Esto | DEVICE FOR TAKING SAMPLES FROM SOIL DEPOSITS IN WATER |
| CN87209127U (en) * | 1987-06-11 | 1988-02-17 | 中国科学院海洋研究所技术开发公司 | Safety gravity piston sampler |
| CN1064744A (en) * | 1991-03-11 | 1992-09-23 | 中国科学院声学研究所 | Underwater noise measuring system with submersible flag |
| CN2298527Y (en) * | 1997-02-27 | 1998-11-25 | 张少甲 | Improved vertical seismic profile logging instrument |
| RU2172822C2 (en) * | 1999-11-29 | 2001-08-27 | Гайфуллин Ахрар Зайнуллович | Percussive-drawdown bailer |
| CN200950569Y (en) * | 2006-07-20 | 2007-09-19 | 万步炎 | Converter for underwater electromechanical device |
| US20130025874A1 (en) * | 2011-07-30 | 2013-01-31 | Robert Saunders | System and method for sampling multiphase fluid at a production wellsite |
| CN103244506A (en) * | 2012-02-08 | 2013-08-14 | 中国石油化工股份有限公司 | Ocean structure underwater vertical butt joint buffer and slow descending device |
| CN204239587U (en) * | 2014-10-27 | 2015-04-01 | 章胜亮 | The anti-error triggering vibration absorber of deep earth sampling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964961A (en) * | 2020-10-09 | 2020-11-20 | 吉林大学 | Full-automatic under-ice sediment vibration sampler |
| CN111964961B (en) * | 2020-10-09 | 2022-05-27 | 吉林大学 | Full-automatic under-ice sediment vibration sampler |
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| Publication number | Publication date |
|---|---|
| CN104358817B (en) | 2016-05-11 |
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