CN206513313U - Diameter-telescopic screw head for pipe following - Google Patents
Diameter-telescopic screw head for pipe following Download PDFInfo
- Publication number
- CN206513313U CN206513313U CN201720144928.6U CN201720144928U CN206513313U CN 206513313 U CN206513313 U CN 206513313U CN 201720144928 U CN201720144928 U CN 201720144928U CN 206513313 U CN206513313 U CN 206513313U
- Authority
- CN
- China
- Prior art keywords
- curved
- external thread
- screw terminal
- thread structure
- screw head
- 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.)
- Withdrawn - After Issue
Links
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 15
- 239000000498 cooling water Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000008828 contractile function Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a diameter telescopic uses screw head with managing, its characterized in that: the screw comprises a curved screw head, wherein the curved screw head is divided into a plurality of unit blocks through a plurality of wedge-shaped grooves, the outer side of the curved screw head of each unit block is provided with 1 external thread structure, and a ball is arranged between each external thread structure and the curved screw head; the outer side face of each curved screw head and the inner surface of the external thread structure are the same contraction-shaped curved faces, the outer surface of the external thread structure is a circular curved face and is provided with threads, grooves are formed in the outer side face of each curved screw head and the inner surface of the external thread structure, and balls are arranged in the grooves. The transmission of torque and pressure and the delivery of cooling water can be realized when the pipe is followed. But after the sleeve pipe is followed to predetermined position, need not lift the sleeve pipe, can directly dismantle the screw head in the downthehole, then directly add new sleeve pipe, improve and follow the pipe efficiency, the wearing and tearing of greatly reduced drill bit and sleeve pipe moreover make the drilling tubular product can use for a longer time.
Description
Technical field
Screw terminal is used with pipe the present invention relates to one kind, particularly a kind of diameter is telescopic to use screw terminal with pipe.
Background technology
Drilling operation is currently understanding geological conditions and a kind of most direct method of hydrologic condition in engineering investigation, in probing
In work progress due to geological conditions, across hole phenomenon often occurs for drilling.The place collapsed for drilling domestic at present
Reason can use drilling fluid retaining wall or pipe-following drilling.But for 100m to 300m some shallow hole drillings enter, constructed
Construction cost will be greatly increased using the drilling fluid of special configuration in journey, project benefit is influenceed.Therefore in shallow bore hole work progress
The measure of middle retaining wall leak stopping is fallen the hole section collapsed using casing off mainly or using the method with pipe.During with pipe construction
The instrument that the screw terminal used is connection sleeve pipe and drilling rod is waited, is responsible for the moment of torsion and longitudinal lifting or pushing power of transmission rig, and
And have channel transfer cooling circulating water.
The step of pipe-following drilling is：
, bring sleeve opening into screw terminal, mobile drilling makes machine bar be connected with screw terminal；
, start rig by sleeve pipe with entering desired depth；
, above carry sleeve pipe, screw terminal is loosened, with rig sleeve pipe be pressed into pipe position；
, unloading screw terminal, propose aperture and then to add new sleeve pipe.
Conventional screw head is in pipe-following drilling because moment of torsion is excessive, and screw terminal is dismantled after being completed with pipe will cover
Pipe is fixed, and reversely being twisted using pipe wrench or other instruments can just disassemble.But during with pipe, screw terminal is located at upper level sleeve pipe
Within, space is minimum between two-stage sleeve pipe, it is impossible to use conventional tool fixed sleeving.If directly invert, can because sleeve pipe it
Between thread gluing and the reason for moment of torsion is excessive during with pipe, often the sleeve pipe in other holes is inverted together.What real reversion came out
Part is not necessarily screw terminal, thus must carry to aperture fixing sleeve pipe and can be only achieved Expected Results.
The 3rd step in said process is to be threadedly coupled due to screw terminal and sleeve pipe, during with pipe between screw thread by
The moment of torsion being subject to when very big pressure and revolution, therefore can occur thread gluing phenomenon.Screw terminal must be thus carried to hole
Mouthful, screw terminal could be disassembled after fixed sleeving.But often hole wall collapses the cased drilling hole section of needs, above carries set
Probe stone is had during pipe and the face of collapsing caves in situation about closing up, thus sleeve pipe can be caused to push less than desired depth.Need
Again to be influenceed with pipe with tube efficiency, to being also to have considerable wear with pipe bit and sleeve pipe.
The content of the invention
It is an object of the present invention to provide a kind of diameter is telescopic to use screw terminal with pipe.It can be made with pipe
When realize the transmission of moment of torsion and pressure, and cooling water conveying.But in sleeve pipe with to after predetermined position, it is not necessary on
Sleeve pipe is carried, screw terminal can be directly dismantled in hole, then directly adds new casing, is improved with tube efficiency, and greatly reduce brill
The abrasion of head and sleeve pipe, uses probing tubing more long.
Technical scheme：A kind of diameter is telescopic to use screw terminal with pipe, it is characterised in that：Include curved
Screw terminal, curved screw terminal is divided on the outside of several cell blocks, the curved screw terminal of each cell block by several wedge-shaped slots and set
1 external thread structure is equipped with, ball is provided between external thread structure and curved screw terminal；The lateral surface of each curved screw terminal
It is that identical shrinks shape curved surface with external thread structure inner surface, the outer surface of external thread structure is circular curved surface and is provided with spiral shell
Set fluted on line, the lateral surface of every piece of curved screw terminal and the inner surface of external thread structure, ball is provided with groove.
Foregoing diameter is telescopic to use screw terminal with pipe, and it is bent that the curved screw terminal is vertically provided with insertion
The limbers of shape screw terminal.
Foregoing diameter is telescopic to use screw terminal with pipe, and the upper and lower surface of every piece of external thread structure is set
There is 1 piece of fixture block, curved screw terminal is stuck between 2 pieces of fixture blocks.
Beneficial effects of the present invention：Compared with prior art, the screw head is applied to pipe-following drilling operation, due to song
The curved surface of shape screw terminal outer surface and external thread structure inner surface is simultaneously non-circular, but shrinkage type curved surface, when clockwise shearing,
The two curved surface, which staggers, can cause screw terminal diameter to increase, and reach working condition, can be returned to again both when rotating counterclockwise normal
State, screw head has contractile function by rig rotating.Using similar between curved screw terminal and external thread structure
In the connected mode of bearing, the effect of cylindrical roller makes to become rolling friction by sliding friction between the two, and frictional force reduces
Be conducive to the mutual motion between curved screw terminal and external thread structure.In sleeve pipe with to after predetermined position, it is not necessary to above carry set
Pipe, can directly dismantle screw terminal in hole, then directly add new casing, carry in omission the step for.So every time with pipe
Drill bit is with lower how many distance, it is possible to adds long sleeve pipe, not only improves with tube efficiency, and greatly reduces drill bit and sleeve pipe
Abrasion, uses probing tubing more long.Except there is to reach conventional screw head：Transmit moment of torsion, flushing can be conveyed
Liquid or cooling water, the strength that rig above puies forward and pushed can be transmitted.Other most important effect is can be in hole by screw
Head directly takes apart, it is not necessary to above carry to aperture.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is the cross section structure diagram of accompanying drawing 1；
Accompanying drawing 3 is the structural representation of external thread structure；
Accompanying drawing 4 is the structural representation of external thread structure；
Reference：The curved screw terminals of 1-, 2- wedge-shaped slots, 3- external thread structures, 4- balls, 5- grooves, 6- limbers, 7-
Fixture block.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiments of the invention：A kind of diameter is telescopic to use screw terminal with pipe, as shown in accompanying drawing 1-4, includes song
Shape screw terminal 1, curved screw terminal 1 is divided into several cell blocks, the curved screw terminal 1 of each cell block by several wedge-shaped slots 2
Outside is provided with 1 external thread structure 3, and ball 4 is provided between external thread structure 3 and curved screw terminal 1；Each curved screw
First 1 lateral surface and the inner surface of external thread structure 3 is that identical shrinks shape curved surface, and the outer surface of external thread structure 3 is circle
Curved surface and screw thread is provided with, fluted 5 is set on the lateral surface of every piece of curved screw terminal 1 and the inner surface of external thread structure 3,
Cylindrical type ball 4 is provided with groove 5.Ball 4 fills quantity to reach that 4 spaces of ball are advisable less than the diameter of ball 4.
This structure in use, during the screw terminal normal condition, than this grade casing inner diameter of its diameter is small, screw terminal screw thread with
Sleeve pipe screw thread is not connected closely.When rotating clockwise curved screw terminal 1, due to external thread structure 3 and curved screw terminal 1 it
Between connected using ball 4, its stressing conditions is similar to bearing, so external thread structure 3 will not follow curved screw terminal 1 to rotate.
The curved outer surface of screw terminal 1 and the inner surface of external thread structure 3 are identical shrinkage type curved surfaces, when both stagger, curved screw
First 1 be relatively large in diameter be partially moved to the thick wall part of external thread structure 3, cause the enlarged diameter of whole screw terminal, be called now
Screw terminal working condition.Screw terminal screw thread originally and sleeve pipe screwed connection be not close, now increases because of screw terminal diameter
Reason, it will closely coupled.And during with pipe, drilling rod sleeve pipe is all rotated clockwise, due to the effect of clockwise torque, screw
The connection of head and sleeve pipe can be more and more closer, in the absence of the risk of slide fastener.When sleeve pipe is with causing precalculated position, screw terminal is inverted.
The presence of ball causes the force of sliding friction between curved screw terminal 1 and external thread structure 3 to be changed into force of rolling friction, and frictional force is significantly
Reduce.Curved screw terminal is easy to return to normal condition with external thread structure, and now screw terminal diameter diminishes, between elimination screw thread
Thread gluing phenomenon, screw terminal and sleeve pipe can now be separated by reversion, so as to realize the purpose of dismounting screw terminal hole in.
The curved screw terminal 1 is vertically provided with the limbers 6 of the curved screw terminal 1 of insertion, is rinsed for conveying
Liquid and cooling water.
The upper and lower surface of every piece of external thread structure 3 is each provided with 1 piece of fixture block 7, and curved screw terminal 1 is stuck in 2 pieces of cards
Between block 7, rig can be transmitted by the two fixture blocks 7 and be applied to the upper body of sleeve pipe or lower amount of pressure, and by curved screw
First 1 links together with external thread structure 3.
Claims (3)
1. a kind of diameter is telescopic to use screw terminal with pipe, it is characterised in that：Include curved screw terminal（1）, curved screw
Head（1）Pass through several wedge-shaped slots（2）It is divided into several cell blocks, the curved screw terminal of each cell block（1）Outside is provided with 1
External thread structure（3）, external thread structure（3）With curved screw terminal（1）Between be provided with ball（4）；Each curved screw terminal（1）
Lateral surface and external thread structure（3）Inner surface is that identical shrinks shape curved surface, external thread structure（3）Outer surface for circle
Curved surface and screw thread is provided with, every piece of curved screw terminal（1）Lateral surface and external thread structure（3）Inner surface on be provided with it is recessed
Groove（5）, groove（5）In be provided with ball（4）.
2. diameter according to claim 1 is telescopic to use screw terminal with pipe, it is characterised in that：The curved screw terminal
（1）Vertically it is provided with the curved screw terminal of insertion（1）Limbers（6）.
3. diameter according to claim 1 is telescopic to use screw terminal with pipe, it is characterised in that：Every piece of external thread structure
（3）Upper and lower surface be each provided with 1 piece of fixture block（7）, curved screw terminal（1）It is stuck in 2 pieces of fixture blocks（7）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720144928.6U CN206513313U (en) | 2017-02-17 | 2017-02-17 | Diameter-telescopic screw head for pipe following |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720144928.6U CN206513313U (en) | 2017-02-17 | 2017-02-17 | Diameter-telescopic screw head for pipe following |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513313U true CN206513313U (en) | 2017-09-22 |
Family
ID=59867285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720144928.6U Withdrawn - After Issue CN206513313U (en) | 2017-02-17 | 2017-02-17 | Diameter-telescopic screw head for pipe following |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761458A (en) * | 2017-02-17 | 2017-05-31 | 中国电建集团贵阳勘测设计研究院有限公司 | Diameter-telescopic screw head for pipe following |
-
2017
- 2017-02-17 CN CN201720144928.6U patent/CN206513313U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761458A (en) * | 2017-02-17 | 2017-05-31 | 中国电建集团贵阳勘测设计研究院有限公司 | Diameter-telescopic screw head for pipe following |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170922 Effective date of abandoning: 20181023 |