CN206458458U - A kind of steering tool bottom damping device - Google Patents
A kind of steering tool bottom damping device Download PDFInfo
- Publication number
- CN206458458U CN206458458U CN201621452812.0U CN201621452812U CN206458458U CN 206458458 U CN206458458 U CN 206458458U CN 201621452812 U CN201621452812 U CN 201621452812U CN 206458458 U CN206458458 U CN 206458458U
- Authority
- CN
- China
- Prior art keywords
- damping
- mandrel
- block rubber
- shell
- pin
- 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
Links
Abstract
The utility model provides a kind of steering tool bottom damping device, wherein described connection housing and damping shell have cavity after coordinating between damping mandrel, block rubber is housed between damping mandrel and damping shell, connection housing, the physical dimension of the block rubber matches with cavity, described damping mandrel successively with pin, block rubber, be connected housing, damping shell install, pin is arranged on damping mandrel, pin block is located between damping shell and block rubber, and pin block is fixed together by pin with damping mandrel；Advantage is：The utility model is very significantly improved manufacturability, and assembling mode more facilitates, it is therefore prevented that relative rotation, the axial movement of damping mandrel and damping shell, and the reliability of damping device is improved to a greater extent.
Description
Technical field
The utility model is related to petroleum drilling engineering field, more particularly, to a kind of steering tool bottom damping device.
Background technology
At present, measurement while drilling（MWD）, well logging（LWD）System has turned into indispensable one in drilling engineering field
Point, the acquisition of downhole data, the even more most important thing, damping device is as connection unit important in logger, for protection instrument
Device pipe nipple, the reliable downhole data of acquisition, its importance are self-evident.
As the damping device of connection unit in the device for subsurface measuring such as present MWD/LWD, its structure is also to adopt mostly
The structure that with connection end to be metalwork combine with yielding rubber, folded spring etc..
A kind of structure be damper by amplifying two metal threaded fit clearances, by the way of heat cure and yielding rubber
It is bonded together, the minor diameter super large pitch rectangle spiral shell in stomata, structure easily occurs in the yielding rubber of this inside configuration press-in
Line（Particularly screwed hole）Processing is also very difficult, and rotation occurs in super large pitch screw in the case of by axial action
Trend, the reliability of damper is reduced to influence damping effect, and this damping device because be using one,
So installing also cumbersome.
Also a kind of structure is that two ends use two ends on the inside of metalwork, damper to make rubber-coated, sulphur in the middle of column
Change has some ring-shaped rubbers to press-fit and is bonded two ends, and the trend of rotation also occurs in this structure under responsive to axial force, so that
Damping effect and reliability are influenceed, and this structure can only be used as the damping for unifying inserting tube in resistance to compression outer barrel.
In these shock absorber structures, due to considering bonding or press-loading process, the hardness range of choice of elastomeric material by
Arrived limitation, so as to produce certain influence to damping performance, and underground work overlong time be easy to occur rubber with
Two ends metalwork degumming phenomenon, sulfidation is also easy to stomata occur.
The content of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, and provides a kind of damping of steering tool bottom
Device.
The new technical scheme of the utility model is：A kind of steering tool bottom damping device, including connection housing, rubber
Block, damping mandrel, pin, damping shell, described connection housing are installed together with damping shell, and damping mandrel is located at damping
The center section of shell, forms cavity, outside damping mandrel and damping between connection housing, damping shell, damping mandrel three
Block rubber is housed between shell, connection housing, the physical dimension of the block rubber matches with cavity, block rubber filling cavity, institute
The damping mandrel stated, which passes sequentially through connection member and pin, block rubber, be connected housing, damping shell is installed, and pin, which is arranged on, to be subtracted
Shake on mandrel, pin block is located between damping shell and block rubber, and pin block is fixed together by pin with damping mandrel.
Described rubber stock material, variable hardness.
Described damping mandrel can change with being connected the connection end structure of housing according to connection request.
Described damping mandrel avoids turning effort with damping shell by block rubber.
Described block rubber avoids the axial movement of damping mandrel and damping shell.
The beneficial effects of the utility model are：The utility model is very significantly improved manufacturability, and assembling mode is more
It is convenient, it is therefore prevented that relative rotation, the axial movement of damping mandrel and damping shell, the reliable of damping device is improved to a greater extent
Property.
Brief description of the drawings
Fig. 1 is the profile of damping device of the present utility model.
Wherein：1 it is connection housing, 2 be block rubber, 3 be damping mandrel, 4 be pin, 5 be damping shell, 6 is pin block.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
A kind of steering tool bottom damping device, including connection housing 1, block rubber 2, damping mandrel 3, pin 4, damping
Shell 5, described connection housing 1 is installed together with damping shell 5, and damping mandrel 3 is located at the center section of damping shell 5,
Connection housing 1, damping shell 5, form cavity between the three of damping mandrel 3, in damping mandrel 3 and damping shell 5, be connected housing
Block rubber 2 is housed, the physical dimension of the block rubber 2 matches with cavity between 1, the filling cavity of block rubber 2, described damping
Mandrel 3, which passes sequentially through connection member and pin 4, block rubber 2, be connected housing 1, damping shell 5 installs, and pin 4 is arranged on damping
On mandrel 3, pin block 6 is located between damping shell 5 and block rubber 2, and pin block 6 is fixed together by pin 4 with damping mandrel 3.
The described material of block rubber 2, variable hardness.
Described damping mandrel 3 can change with being connected the connection end structure of housing 1 according to connection request.
Described damping mandrel 3 avoids turning effort with damping shell 5 by block rubber 2.
Described block rubber 2 avoids the axial movement of damping mandrel 3 and damping shell 5.
This damping device can be by adjusting block rubber 2 the mode such as material and hardness, the size of cavity size change
The damping performance of damping device；Block rubber 2 can be effectively prevented from producing in block rubber 2 by special Mold Making
Stomata, influences damping effect；Because so can be with equipped with block rubber 2 between damping mandrel 3 and damping shell 5, connection housing 1
It is prevented effectively from the effect that damping mandrel 3 is rotated against with damping shell 5；Damping mandrel 3, the connection end knot for connecting housing 1
Structure can be changed according to connection request.
Because using the damping device of separate type, damping device installs more convenient, first by damping mandrel 3 with connecting
Relay part installs pin 4, block rubber 2, connection housing 1, damping shell 5 successively again after installing.
Block rubber 2 instead of the super large pitch rectangular thread gap of similar products, column centre and coat in this configuration
The bonding modes such as rubber, are very significantly improved manufacturability, it is to avoid block rubber 2 produces stomata, prevents the He of damping mandrel 3
The axial movement of damping shell 5, the use of pin 4 can more effectively avoid the relative rotation of damping mandrel 3 and damping shell 5
The reliability of damping device is improved to a greater extent.
The utility model is in application environment, and damping mandrel 3 links together with resistance to compression outer barrel conversion pipe nipple, and skeleton is with subtracting
The adapting device of connection housing 1 on device is shaken, damping device can axially play the effect of damping with radial direction.
Claims (5)
1. a kind of steering tool bottom damping device, including connection housing（1）, block rubber（2）, damping mandrel（3）, pin
（4）, damping shell（5）, it is characterised in that：Described connection housing（1）With damping shell（5）It is installed together, damping mandrel
（3）Positioned at damping shell（5）Center section, connect housing（1）, damping shell（5）, damping mandrel（3）Formed between three
Cavity, in damping mandrel（3）With damping shell（5）, connection housing（1）Between be equipped with block rubber（2）, the block rubber（2）'s
Physical dimension matches with cavity, block rubber（2）Fill cavity, described damping mandrel（3）Pass sequentially through connection member and pin
Nail（4）, block rubber（2）, connection housing（1）, damping shell（5）Install, pin（4）Installed in damping mandrel（3）On, pin block
（6）Positioned at damping shell（5）With block rubber（2）Between, pin（4）By pin block（6）With damping mandrel（3）It is fixed together.
2. a kind of steering tool bottom damping device according to claim 1, it is characterised in that：Described block rubber
（2）Material, variable hardness.
3. a kind of steering tool bottom damping device according to claim 1, it is characterised in that：Described damping mandrel
（3）With being connected housing（1）Connection end structure can be changed according to connection request.
4. a kind of steering tool bottom damping device according to claim 1, it is characterised in that：Described damping mandrel
（3）With damping shell（5）Pass through block rubber（2）Avoid turning effort.
5. a kind of steering tool bottom damping device according to claim 1, it is characterised in that：Described block rubber
（2）Avoid damping mandrel（3）With damping shell（5）Axial movement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521102500 | 2015-12-28 | ||
| CN2015211025002 | 2015-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458458U true CN206458458U (en) | 2017-09-01 |
Family
ID=59698273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621452812.0U Active CN206458458U (en) | 2015-12-28 | 2016-12-28 | A kind of steering tool bottom damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458458U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503216A (en) * | 2020-03-30 | 2020-08-07 | 中国科学院地质与地球物理研究所 | Self-adjusting damping shock absorber for drilling instrument and adjusting method thereof |
| CN112373658A (en) * | 2020-10-13 | 2021-02-19 | 汕头大学 | Vibration damper, hydrophone and underwater vehicle |
| US11274542B2 (en) | 2020-03-30 | 2022-03-15 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Self-adjusting damping vibration absorber for while-drilling instruments and adjusting method thereof |
-
2016
- 2016-12-28 CN CN201621452812.0U patent/CN206458458U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503216A (en) * | 2020-03-30 | 2020-08-07 | 中国科学院地质与地球物理研究所 | Self-adjusting damping shock absorber for drilling instrument and adjusting method thereof |
| CN111503216B (en) * | 2020-03-30 | 2021-03-30 | 中国科学院地质与地球物理研究所 | Self-adjusting damping shock absorber for drilling instrument and adjusting method thereof |
| WO2021197178A1 (en) * | 2020-03-30 | 2021-10-07 | 中国科学院地质与地球物理研究所 | Self-adjusting damping shock absorber for measurement-while-drilling tool and adjustment method thereof |
| US11274542B2 (en) | 2020-03-30 | 2022-03-15 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Self-adjusting damping vibration absorber for while-drilling instruments and adjusting method thereof |
| CN112373658A (en) * | 2020-10-13 | 2021-02-19 | 汕头大学 | Vibration damper, hydrophone and underwater vehicle |
| CN112373658B (en) * | 2020-10-13 | 2022-01-04 | 汕头大学 | Vibration damper, hydrophone and underwater vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206458458U (en) | A kind of steering tool bottom damping device | |
| CN105781443B (en) | A kind of reducing centralizer | |
| CN206802055U (en) | Anti-loosening bolt | |
| MXPA06002981A (en) | Fatigue resistant rotary shouldered connection and method. | |
| CN205207515U (en) | Along with boring inclinometer bumper shock absorber | |
| CN107588084A (en) | A kind of anti-loosening bolt assembly easily assembled | |
| CN205714020U (en) | A kind of reducing centralizer | |
| CN204094747U (en) | The new structure of a kind of Fast Installation and dismounting nail pipe | |
| CN201377318Y (en) | Deoscillator of wireless declinator while drilling | |
| CN105275452B (en) | Vibration absorber with protection measurement while-drilling instrument function | |
| CN104776148B (en) | Viscous fluid damper for on-orbit vibration isolation of spatial load | |
| CN204729022U (en) | A kind of multi-point support type ocean drill rod threaded nipple | |
| CN203296770U (en) | Built-in integral pressure meter support drum | |
| CN204113274U (en) | Logger righting plug | |
| CN104373111B (en) | A kind of logger righting plug | |
| CN204828423U (en) | Prevent torsional bumper shock absorber | |
| CN203584410U (en) | Shock absorber of down-hole measuring instrument | |
| CN105547527B (en) | A kind of damper sealing pressure measurement method | |
| CN207253753U (en) | A kind of reducing umbrella shape gyro | |
| CN205246084U (en) | A shock absorber for laser gyro | |
| CN207703344U (en) | A kind of Anti-seismic fast temperature sensor | |
| CN208664866U (en) | Control arm bush | |
| CN105781481A (en) | Spiral packer rubber barrel with steel skeleton | |
| CN203362086U (en) | Coring barrel structure capable of being used for coring of inclined shaft | |
| CN207795957U (en) | A kind of vehicle shock absorber damping adjustment executing agency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |