CN205778611U - One is multistage can type recombined shock-absorbing thrustor - Google Patents
One is multistage can type recombined shock-absorbing thrustor Download PDFInfo
- Publication number
- CN205778611U CN205778611U CN201620496827.0U CN201620496827U CN205778611U CN 205778611 U CN205778611 U CN 205778611U CN 201620496827 U CN201620496827 U CN 201620496827U CN 205778611 U CN205778611 U CN 205778611U
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- Prior art keywords
- piston
- piston rod
- thrustor
- boss
- shock
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Abstract
This utility model provide a kind of multistage can type recombined shock-absorbing thrustor, including some thrust units, described thrust unit includes piston rod, and circumferentially extending in the middle part of piston rod have the first boss, described first boss be arranged over piston mechanism；Described piston mechanism includes lower piston, and described lower piston overlaps on the piston rod, and the upper surface laminating of the lower surface of lower piston and the first boss, and the inwall of lower piston along the circumferential direction has some o-ring grooves, is respectively equipped with O RunddichtringO in described o-ring groove；The top of described piston rod along the circumferential direction has circlip groove, is provided with the upper surface laminating of circlip, the lower surface of described circlip and upper piston in described circlip groove.Shock-absorbing thrustor described in the utility model provides more stable flexible the pressure of the drill, and quickly and conveniently increases and decreases the progression of shock-absorbing thrustor, replaces the heavy collar of routine to a certain extent.
Description
Technical field
This utility model belongs to Oil & Gas Drilling Technology field, especially relate to a kind of multistage can type recombined damping
Thruster.
Background technology
Shock-absorbing thrustor is a kind of underground operation tool being applied in oil drilling, workover treatment, can be by
The conventional rigid pressurized bored becomes fluid power flexible pressurizing, can apply to stablize the pressure of the drill for drill bit in wellbore construction,
Serve damping, anti-bouncing of drilling tool, realize automatic bit feed, stablize the effect of drilling tool work surface, but down-hole feelings
Condition is intricate, and required the pressure of the drill can change, and generally uses heavy collar to apply to bore to drill bit
Pressure, and drill collar is the longest the heaviest, and rigid pressurized is unfavorable for bit life, the most stable pressurization
Mode, more easily pressurizing tool have wide market prospect.
Summary of the invention
In view of this, this utility model be directed to a kind of multistage can type recombined shock-absorbing thrustor, to provide
More stable flexible the pressure of the drill, and quickly and conveniently increase and decrease the progression of shock-absorbing thrustor, to a certain degree
The upper heavy collar replacing routine.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
A kind of multistage can type recombined shock-absorbing thrustor, including some thrust units, described thrust unit includes
Piston rod, circumferentially extending in the middle part of piston rod have the first boss, being arranged over of described first boss
Piston mechanism；
Described piston mechanism includes lower piston, and described lower piston overlaps on the piston rod, and the following table of lower piston
The upper surface laminating of face and the first boss, the inwall of lower piston along the circumferential direction has some o-ring grooves,
O RunddichtringO it is respectively equipped with in described o-ring groove；
Described lower piston be arranged over upper piston, described upper piston overlaps on the piston rod, and upper piston
Portion lower surface is fitted with lower piston, and described thrust unit also includes that urceolus, described urceolus are enclosed within piston machine
On structure, and partial piston bar is placed in urceolus, and the outer wall of described upper piston is fitted with outer tube inner wall, lower work
The bottom of wall is extended with the second boss beyond the Great Wall, is formed between the second boss upper surface and upper piston lower surface
Seal space, in sealing space, be provided with the first V-shaped seal ring；
The top of described piston rod along the circumferential direction has circlip groove, is provided with circlip in described circlip groove,
The upper surface laminating of the lower surface of described circlip and upper piston.
Further, the bottom of described outer tube inner wall is extended with a step, and described step includes first step
Face and second step face, described First terrace is in sealing contact with the outer wall of piston rod, second step face and
First space that can move down is had for piston rod between first boss lower surface.
Further, some thrust units are end to end, are placed in the urceolus upper end of thrust unit at top even
Being connected to top connection, being formed between lower surface and the upper surface of upper piston of described top connection can be for piston rod
The second space moved down；
Fit with one end of mandrel in the lower surface of piston rod being placed in the thrust unit of bottom, described mandrel
Outside be cased with spline housing, with the spline housing sidewall of mandrel contacts on be sequentially provided with the second V-shaped seal ring and prevent
Konisphere.
Further, the outer wall of described upper piston has mud-scraping ring groove and wear-resisting trough of belt the most successively,
It is provided with mud-scraping ring in described mud-scraping ring groove, in described wear-resisting trough of belt, is provided with wear-resistant strip.
Further, two group of first V-shaped seal ring, and two group it are provided with in the sealing space of piston mechanism
The installation direction of one V-shaped seal ring is contrary.
Relative to prior art, one described in the utility model is multistage can be had by type recombined shock-absorbing thrustor
Following advantage:
The thrust that shock-absorbing thrustor internal pressure differences of the present invention produces can pass downwards on level by level ground
Pass, pass to drill bit finally by mandrel, it is achieved liquid flexible pressurizing, before instrument is gone into the well, according to meter
Calculate drill bit the pressure of the drill of gained, the thrust unit of the required progression of configuration, re-assembly integral damping thrust
Device, it is possible to according in drilling process, the change of required the pressure of the drill, wait for an opportunity thrust unit number is increased or decreased,
Restructuring shock-absorbing thrustor, it is achieved multistage can recombination function；
The pressure of the drill that the pressure of the drill that multistage reconstitutable thrust unit applies can apply equal to heavy collar, necessarily
Can substitute for conventional heavy collar in degree, it is provided that more stable flexible the pressure of the drill, reduce vibration right
The impact of bit life, and can quickly and conveniently increase and decrease the progression of shock-absorbing thrustor.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that this reality
With novel improper restriction.In the accompanying drawings:
Fig. 1 is the overall structure schematic diagram described in this utility model embodiment.
Description of reference numerals:
1-top connection；2-urceolus；21-step；211-First terrace；212-second step face；213-
First space；3-circlip；31-circlip groove；4-mud-scraping ring；41-mud-scraping ring groove；5-wear-resistant strip；
The wear-resisting trough of belt of 51-；6-upper piston；7-the first V-shaped seal ring；71-seals space；8-lower piston；81-
Second boss；9-O RunddichtringO；91-o-ring groove；10-piston rod；101-the first boss；102-
Second space；11-mandrel；12-spline housing；13-the second V-shaped seal ring；14-dust ring.
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in this utility model and embodiment
Feature can be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " horizontal stroke
To ", " on ", D score, "front", "rear", "left", "right", " vertically ", " water
Flat ", the orientation that indicates of " top ", " end ", " interior ", " outward " etc. or position relationship be based on attached
Orientation shown in figure or position relationship, be for only for ease of description this utility model and simplify description, and not
Be instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second "
Etc. being only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit indicate indication
The quantity of the technical characteristic shown.Thus, the feature defining " first ", " second " etc. can be expressed
Or implicitly include one or more this feature.In description of the present utility model, unless otherwise
Illustrating, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited,
Term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing,
Can also be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；
Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the company of two element internals
Logical.For the ordinary skill in the art, can understand that above-mentioned term is at this by concrete condition
Concrete meaning in utility model.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, a kind of multistage can type recombined shock-absorbing thrustor, including some thrust units, described
Thrust unit includes piston rod 10, and circumferentially extending in the middle part of piston rod 10 have the first boss 101,
Described first boss 101 be arranged over piston mechanism；
Described piston mechanism includes lower piston 8, and described lower piston 8 is enclosed within piston rod 10, and lower piston
The lower surface of 8 and the upper surface laminating of the first boss 101, the inwall of lower piston 8 along the circumferential direction has
Some o-ring grooves 91, are respectively equipped with O RunddichtringO 9 in described o-ring groove 91；
Described lower piston 8 be arranged over upper piston 6, described upper piston 6 is enclosed within piston rod 10, and
The portion lower surface of upper piston 6 is fitted with lower piston 8, and the outer wall of described upper piston 6 is the most successively
Have mud-scraping ring groove 41 and wear-resisting trough of belt 51, in described mud-scraping ring groove 41, be provided with mud-scraping ring 4, described resistance to
Being provided with wear-resistant strip 5 in grinding belt groove 51, described thrust unit also includes that urceolus 2, described urceolus 2 are enclosed within work
In plug mechanism, and partial piston bar 10 is placed in urceolus 2, the outer wall of described upper piston 6 and urceolus 2
Inwall is fitted, and the bottom of lower piston 8 outer wall is extended with the second boss 81, the second boss 81 upper surface and
It is formed with sealing space 71 between upper piston 6 lower surface, in sealing space 71, is provided with the first V-seal
Circle 7；
The top of described piston rod 10 along the circumferential direction has circlip groove 31, is provided with in described circlip groove 31
The upper surface laminating of circlip 3, the lower surface of described circlip 3 and upper piston 6.
The bottom of described urceolus 2 inwall is extended with a step 21, and described step 21 includes First terrace
211 and second step face 212, described First terrace 211 is in sealing contact with the outer wall of piston rod 10,
Have one piston rod 10 can be supplied to move down between second step face 212 and the first boss 101 lower surface
First space 213.
Some thrust units are end to end, be placed in top thrust unit urceolus 2 upper end connect have on connect
1, being formed between lower surface and the upper surface of upper piston 6 of described top connection 1 can be for piston rod 10
The second space 12 moved down；
Fit with one end of mandrel 11 in the lower surface of piston rod 10 being placed in the thrust unit of bottom, described
The outside of mandrel 11 is cased with spline housing 12, and spline housing 12 sidewall contacted with mandrel 11 is sequentially provided with
Second V-shaped seal ring 13 and dust ring 4.
The work process of the present embodiment: drilling fluid enters the thrust of shock-absorbing thrustor from top connection 1 centre bore
In unit, wherein urceolus 2, circlip 3, mud-scraping ring 4, wear-resistant strip 5, upper piston the 6, the oneth V
RunddichtringO 7, lower piston 8, O RunddichtringO 9 and piston rod 10 form a thrust unit, drilling well
The lower surface of liquid first boss 101 in the middle part of the upper surface of upper piston 6 and piston rod 10 produces pressure differential,
Pressure differential promotes piston rod 10 that thrust is passed down to the thrust unit of bottom, and this instrument is pushed away by n
Power unit (wherein n is the integer more than or equal to 1), top connection 1, mandrel 11, spline housing 12,
Two V-shaped seal rings 13 and dust ring 14 form, and the thrust meeting level by level ground that pressure differential produces is downwards
Transmission, passes to drill bit finally by mandrel, it is achieved liquid flexible pressurizing, wherein before instrument is gone into the well,
According to drill bit the pressure of the drill of calculating gained, the thrust unit of the required progression of configuration, re-assembly integral subtracting
Shake thruster, it is possible to according in drilling process, the change of required the pressure of the drill, wait for an opportunity thrust list is increased or decreased
Unit number, recombinate shock-absorbing thrustor, it is achieved multistage can recombination function.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made,
Within should be included in protection domain of the present utility model.
Claims (5)
1. one kind multistage can type recombined shock-absorbing thrustor, it is characterised in that: include some thrust units,
Described thrust unit includes piston rod (10), and piston rod (10) middle part is circumferentially extending first
Boss (101), described first boss (101) be arranged over piston mechanism；
Described piston mechanism includes that lower piston (8), described lower piston (8) are enclosed within piston rod (10),
And the upper surface laminating of the lower surface of lower piston (8) and the first boss (101), lower piston (8)
Inwall along the circumferential direction has some o-ring grooves (91), in described o-ring groove (91) respectively
It is provided with O RunddichtringO (9)；
Described lower piston (8) be arranged over upper piston (6), described upper piston (6) is enclosed within piston
On bar (10), and the portion lower surface of upper piston (6) is fitted with lower piston (8), described thrust list
Unit also includes that urceolus (2), described urceolus (2) are enclosed within piston mechanism, and partial piston bar (10)
Being placed in urceolus (2), the outer wall of described upper piston (6) is fitted with urceolus (2) inwall, lower piston
(8) bottom of outer wall is extended with the second boss (81), the second boss (81) upper surface and upper piston
(6) it is formed with sealing space (71) between lower surface, in sealing space (71), is provided with the first V-type
Sealing ring (7)；
The top of described piston rod (10) along the circumferential direction has circlip groove (31), described circlip groove (31)
Inside it is provided with the upper table of circlip (3), the lower surface of described circlip (3) and upper piston (6)
Fit in face.
One the most according to claim 1 is multistage can type recombined shock-absorbing thrustor, it is characterised in that:
The bottom of described urceolus (2) inwall is extended with a step (21), and described step (21) includes first
Step surface (211) and second step face (212), described First terrace (211) and piston rod (10)
Outer wall be in sealing contact, have an energy between second step face (212) and the first boss (101) lower surface
The first space (213) moved down for piston rod (10).
One the most according to claim 1 is multistage can type recombined shock-absorbing thrustor, it is characterised in that:
Some thrust units are end to end, be placed in the thrust unit at top urceolus (2) upper end connect have on connect
Head (1), is formed with energy between lower surface and the upper surface of upper piston (6) of described top connection (1)
The second space (12) moved down for piston rod (10)；
Fit with one end of mandrel (11) in the lower surface of piston rod (10) being placed in the thrust unit of bottom,
The outside of described mandrel (11) is cased with spline housing (12), the spline housing (12) contacted with mandrel (11)
The second V-shaped seal ring (13) and dust ring (4) it is sequentially provided with on sidewall.
One the most according to claim 1 is multistage can type recombined shock-absorbing thrustor, it is characterised in that:
The outer wall of described upper piston (6) has mud-scraping ring groove (41) and wear-resisting trough of belt (51) the most successively,
It is provided with mud-scraping ring (4) in described mud-scraping ring groove (41), is provided with wear-resisting in described wear-resisting trough of belt (51)
Band (5).
One the most according to claim 1 is multistage can type recombined shock-absorbing thrustor, it is characterised in that:
Two group of first V-shaped seal ring (7), and two group first it is provided with in the sealing space (71) of piston mechanism
The installation direction of V-shaped seal ring (7) is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620496827.0U CN205778611U (en) | 2016-05-26 | 2016-05-26 | One is multistage can type recombined shock-absorbing thrustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620496827.0U CN205778611U (en) | 2016-05-26 | 2016-05-26 | One is multistage can type recombined shock-absorbing thrustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778611U true CN205778611U (en) | 2016-12-07 |
Family
ID=57408248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620496827.0U Expired - Fee Related CN205778611U (en) | 2016-05-26 | 2016-05-26 | One is multistage can type recombined shock-absorbing thrustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266285A (en) * | 2021-06-24 | 2021-08-17 | 思达斯易能源技术(集团)有限公司 | Durable hydraulic pressurizer for drill bit |
-
2016
- 2016-05-26 CN CN201620496827.0U patent/CN205778611U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266285A (en) * | 2021-06-24 | 2021-08-17 | 思达斯易能源技术(集团)有限公司 | Durable hydraulic pressurizer for drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |