CN2426010Y - Flexible vibration damper - Google Patents
Flexible vibration damper Download PDFInfo
- Publication number
- CN2426010Y CN2426010Y CN 00233363 CN00233363U CN2426010Y CN 2426010 Y CN2426010 Y CN 2426010Y CN 00233363 CN00233363 CN 00233363 CN 00233363 U CN00233363 U CN 00233363U CN 2426010 Y CN2426010 Y CN 2426010Y
- Authority
- CN
- China
- Prior art keywords
- shell
- mandrel
- vibration damper
- flexible vibration
- air chamber
- 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.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The flexible vibration absorber consists of a shell, a mandrel and an air chamber, wherein the bottom end of the shell is in threaded connection with the shell, and the air chamber is arranged between the shell and the mandrel. The vibration damping performance is good.
Description
The utility model relates to a kind of gentle shape shock absorber, is mainly used in the Petroleum Exploration Engineering.
Prior art is a liquid-springing.Its weak point is: incompatible serious bouncing of drilling tool formation condition uses down; Complex structure; Intensity is low.
The purpose of this utility model is to overcome above-mentioned weak point of the prior art and flexible vibration damper that a kind of wide accommodation and long service life are provided.
The purpose of this utility model can reach by following measure: the utility model is made up of shell, mandrel and air chamber, and the shell bottom shell that has been threaded has air chamber between shell and the mandrel.
Last sealed packing group is arranged between shell and the mandrel top.
Shell has spline to be connected with the mandrel middle part.
Trapping and pinning is housed on the lower end wall, packs in the mandrel groove in pinning the inner.
On the shell middle wall tank filler sleeve is arranged.
Accompanying drawing 1 is total figure that partly cuts open of the present utility model.
The accompanying drawing piece number is represented:
1, shell 2, last sealed packing group 3, mandrel 4, air chamber 5, tank filler sleeve
6, spline 7, lower seal packing 8, pinning 9, trap
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:
Fig. 1 represents structure of the present utility model, mainly is made up of shell 1, mandrel 3 and air chamber 4, and last sealed packing group 2 is arranged between shell and the mandrel top, is the usefulness that prevents the high-pressure slurry thorn leakage in the drilling tool.Shell has spline 6 to be connected with the mandrel middle part, with transfer torque.Outer casing underpart has been threaded and has trapped 9, and the outer casing underpart inner chamber has lower seal packing 7, and pinning 8 is housed on the lower end wall of trapping, and packs in the mandrel groove in pinning the inner, and its effect is to prevent that mandrel top from breaking the back mandrel and coming off, and can also prevent that intermediate connecting part from threading off.Mandrel middle part cylindrical projection, shell middle part inner chamber has reaming and tank filler sleeve 5, and the mandrel shell of packing into forms air chamber 4 between projection and the reaming.
During use, after ground installs the utility model, inwardly inject quantitative special oil from tank filler sleeve 4, and then inject high pressure nitrogen, nitrogen has been annotated and has been squeezed into special oil with handlance, and head of liquid balances each other outside the pipe of the pressure that makes air chamber well depth during with brill down.Under get into the end.Drill bit work produces vibration, and vibration force is uploaded by mandrel 3, the gas in the compression air chamber 5, because the physical characteristic of gas, pressure is inversely proportional to volume, and the rising of pressure, volume reduces, and pressure reduces volume and increases, and absorbs vibration in increasing and dwindling.Its change procedure has good flexibility.So vibration-damping function is good.
The utility model contrast prior art has following advantage.
Damping property is good.
Claims (5)
1, a kind of flexible vibration damper is characterized in that, is made up of shell, mandrel and air chamber, and the shell bottom shell that has been threaded has air chamber between shell and the mandrel.
2, flexible vibration damper according to claim 1 is characterized in that, last sealed packing group is arranged between shell and the mandrel top.
3, flexible vibration damper according to claim 1 is characterized in that, shell has spline to be connected with the mandrel middle part.
4, flexible vibration damper according to claim 1 is characterized in that, on the lower end wall of trapping pinning is housed, and packs in the mandrel groove in pinning the inner.
5, flexible vibration damper according to claim 1 is characterized in that, on the shell middle wall tank filler sleeve is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00233363 CN2426010Y (en) | 2000-05-18 | 2000-05-18 | Flexible vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00233363 CN2426010Y (en) | 2000-05-18 | 2000-05-18 | Flexible vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2426010Y true CN2426010Y (en) | 2001-04-04 |
Family
ID=33595733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00233363 Expired - Fee Related CN2426010Y (en) | 2000-05-18 | 2000-05-18 | Flexible vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2426010Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031938A (en) * | 2010-11-25 | 2011-04-27 | 中国石油化工股份有限公司 | Shock absorber for drilling tool in oil-gas drilling |
| CN102272409B (en) * | 2009-01-08 | 2013-11-13 | 阿克海底公司 | Auxiliary subsurface compensator |
| CN108708710A (en) * | 2018-05-29 | 2018-10-26 | 西南石油大学 | A method of leading to drill bit burying occurrence probability for reducing well wall dropping block |
-
2000
- 2000-05-18 CN CN 00233363 patent/CN2426010Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102272409B (en) * | 2009-01-08 | 2013-11-13 | 阿克海底公司 | Auxiliary subsurface compensator |
| CN102031938A (en) * | 2010-11-25 | 2011-04-27 | 中国石油化工股份有限公司 | Shock absorber for drilling tool in oil-gas drilling |
| CN108708710A (en) * | 2018-05-29 | 2018-10-26 | 西南石油大学 | A method of leading to drill bit burying occurrence probability for reducing well wall dropping block |
| CN108708710B (en) * | 2018-05-29 | 2021-09-21 | 西南石油大学 | Method for reducing probability of drill bit burying caused by well wall dropping block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |