CN207363644U - A kind of rotary disconnector for underground scraping - Google Patents
A kind of rotary disconnector for underground scraping Download PDFInfo
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- CN207363644U CN207363644U CN201721452905.8U CN201721452905U CN207363644U CN 207363644 U CN207363644 U CN 207363644U CN 201721452905 U CN201721452905 U CN 201721452905U CN 207363644 U CN207363644 U CN 207363644U
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Abstract
The utility model belongs to oil gas field downhole tool manufacturing technology field, more particularly to a kind of rotary disconnector for underground scraping.Spiral scraping blade connection and a kind of lower contact of rotary disconnector for underground scraping are fixed with, caused moment of torsion will not go out to pass to the component of more than spiral scraping blade when spiral scraping blade enters play up and down in oil well casing.Thus, component more than spiral scraping blade will not be had an impact due to moment of torsion.Add the degree of safety of operation.
Description
Technical field
The utility model belongs to oil gas field downhole tool manufacturing technology field, more particularly to a kind of for underground scraping
Rotary disconnector.
Background technology
At present during underground scraping, drifting and other operations both at home and abroad.Due to it is upper carry or transfer tubing string when, tubing string is connected
The maximum rigid body outside diameter of instrument can produce moment of torsion with sleeve friction, if moment of torsion cannot effectively discharge, then can cause tubing string
Between connection screw thread can produce loosening, cause the generation of instrument or oil pipe dropping situations, cause down-hole accident, and with well
Oblique increase, the probability that such a situation occurs are bigger.Such as：In scraping, scraper body outer surface is equipped with spiral
Scraping blade.When above carrying or transferring tubing string scraping, spiral scraping blade is rotated against with casing, is produced moment of torsion and is acted on scraper
Top connection at, scraping tubing string is easy to thread off here, causes scraper to fall well.And conventional scraping tubing string moment of torsion release dress
Put, simply the simple active shoulder mounting of application.This kind of device discharges certain moment of torsion, but puies forward when decentralization or above load
When very big, force of sliding friction is excessive between end face, still can increase moment of torsion, and using effect is not fine.
Utility model content
A kind of mechanism being mainly made of top connection, central tube, cylinder sleeve, bearing, adjustment block and lower contact is designed, is such as schemed
Shown in 1.When a kind of lower contact of the rotary disconnector for underground scraping is connected with spiral scraping blade, it is put into oil well casing
During upper and lower play, the friction between spiral scraping blade and internal surface of sleeve pipe can cause a kind of rotary disconnector for underground scraping
Acted on be subject to moment of torsion.The moment of torsion that wherein lower contact is born can be offset by the rotation of bearing, and top connection is solely subjected to very little
Moment of torsion is not so that influence to use.
The technical solution of use
A kind of rotary disconnector for underground scraping, including：Top connection, central tube, cylinder sleeve, the first adjusting sleeve,
One bearing, second adjustment set, second bearing, the 3rd adjusting sleeve and lower contact.It is characterized in that：
The upper port of cylinder sleeve entangles the outer cylinder of top connection lower part, clearance fit.The upper surface of cylinder sleeve is close to top connection
Second face.
The lower port of the upper end of first adjusting sleeve from top connection and cylinder sleeve is inserted, and the upper surface of the first adjusting sleeve is close above to be connect
The first face on head.The outer cylinder of first adjusting sleeve and the inner cylinder clearance fit of top connection lower end.
The upper end of clutch shaft bearing is inserted from the lower port of cylinder sleeve, and the upper surface phase of clutch shaft bearing is under the first adjusting sleeve
End face and the first face of cylinder sleeve.There are gap in the upper surface of clutch shaft bearing and the lower face of top connection.The outer cylinder of clutch shaft bearing with
Inner cylinder clearance fit in the middle part of cylinder sleeve.
The lower stomidium of the upper end of central tube from top connection, cylinder sleeve, the first adjusting sleeve and clutch shaft bearing is inserted, on central tube
First face abuts the first face in top connection, and the outer cylinder on central tube top is threadedly coupled with the first inner cylinder in top connection.
The second face on central tube is close to the lower face of clutch shaft bearing.
The centre bore of second adjustment set entangles top connection from top connection lower end, and the upper port of second adjustment set entangles first axle
Hold the cylinder of lower part, clearance fit.The upper end of second adjustment set is close to the lower face of the outermost cylinder of clutch shaft bearing.Second adjustment
Inner cylinder clearance fit in the middle part of the outer cylinder and cylinder sleeve of set.
The upper port of second bearing entangles central tube, and the upper end of second bearing is corresponded to close to the 3rd face of central tube.Second
The lower stomidium of second adjustment set is inserted in the upper end of bearing, and second bearing outer rim upper surface is close to the lower face that second adjustment covers.The
Inner cylinder clearance fit in the middle part of the outer cylinder and cylinder sleeve of two bearings.
3rd adjusting sleeve is embedded into the first groove of central tube.The upper end hole of lower contact entangles the lower part and of central tube
The outside diameter lower part of three adjusting sleeves.Through coordinating with the crest clearance of the 3rd adjusting sleeve lower part in the first of lower contact, lower contact is most
It is small interior through coordinating with the crest clearance of central tube lower part.The upper end of lower contact is inserted in the lower stomidium of cylinder sleeve, and the first of lower contact
Face abuts the second face of cylinder sleeve, and the outer cylinder in the middle part of lower contact is threadedly coupled with the inner cylinder of cylinder sleeve lower part.The outer rim of lower contact
Upper surface is close to the lower face of second bearing.
The first groove in top connection is built into sealing ring.The first groove on cylinder sleeve is built into sealing ring.Lower contact
On the first groove be built into sealing ring.The second groove in lower contact is built into sealing ring.
Advantage
Spiral scraping blade connection and a kind of lower contact of rotary disconnector for underground scraping are fixed with, spiral
Caused moment of torsion will not go out the component passed to more than spiral scraping blade when scraping blade enters play above and below in oil well casing.Cause
And component more than spiral scraping blade will not be had an impact due to moment of torsion.Add the degree of safety of operation.
Brief description of the drawings
Fig. 1 is a kind of assembling schematic diagram of rotary disconnector for underground scraping.
Fig. 2 is the structure and station location marker figure of top connection.
The structure of pipe and station location marker figure centered on Fig. 3.
Fig. 4 is the structure and station location marker figure of cylinder sleeve.
Fig. 5 is the structure and station location marker figure of lower contact.
Embodiment
A kind of rotary disconnector for underground scraping, including：Top connection 1, central tube 2, cylinder sleeve 3, the first adjusting sleeve
4th, clutch shaft bearing 5, second adjustment set 6, second bearing 7, the 3rd adjusting sleeve 8 and lower contact 9；It is characterized in that：
The upper port of cylinder sleeve 3 entangles the outer cylinder of 1 lower part of top connection, clearance fit；The upper surface of cylinder sleeve 3 is close to top connection
1 the second face 12；
The lower port of upper end from the top connection 1 and cylinder sleeve 3 of first adjusting sleeve 4 is inserted, and the upper surface of the first adjusting sleeve 4 is close
The first face 11 in top connection 1；The outer cylinder of first adjusting sleeve 4 and the inner cylinder clearance fit of 1 lower end of top connection；
The lower port of the upper end of clutch shaft bearing 5 from cylinder sleeve 3 is inserted, and the upper surface of clutch shaft bearing 5 is mutually close to the first adjusting sleeve 4
Lower face and cylinder sleeve 3 the first face 19；There is gap in the upper surface of clutch shaft bearing 5 with the lower face of top connection 1；Clutch shaft bearing 5
The middle part of outer cylinder and cylinder sleeve 3 inner cylinder clearance fit；
The lower stomidium of the upper end of central tube 2 from top connection 1, cylinder sleeve 3, the first adjusting sleeve 4 and clutch shaft bearing 5 is inserted, center
The first face 14 on pipe 2 abuts the first face 11 in top connection 1, the outer cylinder on 2 top of central tube with first in top connection 1
Cylinder 13 is threadedly coupled；The second face 15 on central tube 2 is close to the lower face of clutch shaft bearing 5；
The centre bore of second adjustment set 6 entangles top connection 1 from 1 lower end of top connection, and the upper port of second adjustment set 6 entangles the
The cylinder of one bearing, 5 lower part, clearance fit；The upper end of second adjustment set 6 is close to the lower face of the outermost cylinder of clutch shaft bearing 5；
The outer cylinder of second adjustment set 6 and the inner cylinder clearance fit at the middle part of cylinder sleeve 3；
The upper port of second bearing 7 entangles central tube 2, and the upper end of second bearing 7 is corresponded to close to the 3rd face of central tube 2
16；The lower stomidium of second adjustment set 6 is inserted in the upper end of second bearing 7, and 7 outer rim upper surface of second bearing is close to second adjustment set 6
Lower face；The outer cylinder of second bearing 7 and the inner cylinder clearance fit at the middle part of cylinder sleeve 3；
3rd adjusting sleeve 8 is embedded into the first groove 17 of central tube 2；The upper end hole of lower contact 9 is entangled under central tube 2
Portion and the outside diameter lower part of the 3rd adjusting sleeve 8；Crest clearance through 21 and 8 lower part of the 3rd adjusting sleeve in the first of lower contact 9 coordinates,
Through coordinating with the crest clearance of 2 lower part of central tube in the minimum of lower contact 9；The lower stomidium of cylinder sleeve 3 is inserted in the upper end of lower contact 9
Interior, the first face 23 of lower contact 9 abuts the second face 20 of cylinder sleeve 3, the outer cylinder and the inner prop of 3 lower part of cylinder sleeve at 9 middle part of lower contact
Face is threadedly coupled；The outer rim upper surface of lower contact 9 is close to the lower face of second bearing 7；
The first groove 10 in top connection 1 is built into sealing ring；The first groove 18 on cylinder sleeve 3 is built into sealing ring；
The first groove 22 in lower contact 9 is built into sealing ring；The second groove 24 in lower contact 9 is built into sealing ring.
Operation principle
As shown in Figure 1.When lower contact, which is fixed with spiral scraping blade, to be moved downward in oil well casing, lower contact be subject to
On power, the upper surface of lower contact withstands the lower face of second bearing, and the 3rd face of central tube is withstood in the upper surface of second bearing.
The friction that spiral scraping blade is produced with oil well casing inner wall, produces a moment of torsion, this moment of torsion passes to down to spiral scraping blade
Connector.Due to being slidably connected between lower contact and central tube by second bearing, during the moment of torsion of lower contact is not transferred to
Heart pipe, or only transmit sub-fraction.Thus, produce relative rotation between lower contact and central tube.Produced by spiral scraping blade
Torque only have small part to pass to top connection, on top connection form influence.Second bearing bears pressure, withstands down
Connector and spiral scraping blade downlink.
Similarly, when being connected with the movement upwards in oil well casing of spiral scraping blade, clutch shaft bearing can offset torque transmission
To top connection and the moment of torsion that bears.
Adjusting sleeve therein is to adjust the gap between each part.Cylinder sleeve is for defensive.
Claims (1)
1. a kind of rotary disconnector for underground scraping, including：Top connection（1）, central tube（2）, cylinder sleeve（3）, first adjust
It is a whole set of（4）, clutch shaft bearing（5）, second adjustment set（6）, second bearing（7）, the 3rd adjusting sleeve（8）And lower contact（9）；Its feature
It is：
Cylinder sleeve（3）Upper port entangle top connection（1）The outer cylinder of lower part, clearance fit；Cylinder sleeve（3）Upper surface close to above connecing
Head（1）The second face（12）；
First adjusting sleeve（4）Upper end from top connection（1）And cylinder sleeve（3）Lower port insert, the first adjusting sleeve（4）Upper surface
Close to top connection（1）On the first face（11）；First adjusting sleeve（4）Outer cylinder and top connection（1）The inner cylinder gap of lower end
Coordinate；
Clutch shaft bearing（5）Upper end from cylinder sleeve（3）Lower port insert, clutch shaft bearing（5）Upper surface mutually close to first adjustment
Set（4）Lower face and cylinder sleeve（3）The first face（19）；Clutch shaft bearing（5）Upper surface and top connection（1）Lower face have between
Gap；Clutch shaft bearing（5）Outer cylinder and cylinder sleeve（3）The inner cylinder clearance fit at middle part；
Central tube（2）Upper end from top connection（1）, cylinder sleeve（3）, the first adjusting sleeve（4）And clutch shaft bearing（5）Lower stomidium put
Enter, central tube（2）On the first face（14）Abut top connection（1）On the first face（11）, central tube（2）The outer cylinder on top with
Top connection（1）On the first inner cylinder（13）It is threadedly coupled；Central tube（2）On the second face（15）Close to clutch shaft bearing（5）'s
Lower face；
Second adjustment set（6）Centre bore from top connection（1）Entangle top connection in lower end（1）, second adjustment set（6）Upper end muzzle
Firmly clutch shaft bearing（5）The cylinder of lower part, clearance fit；Second adjustment set（6）Upper end close to clutch shaft bearing（5）Outermost cylinder
Lower face；Second adjustment set（6）Outer cylinder and cylinder sleeve（3）The inner cylinder clearance fit at middle part；
Second bearing（7）Upper port entangle central tube（2）, second bearing（7）Upper end correspond to close to central tube（2）The 3rd
Face（16）；Second bearing（7）Upper end insert second adjustment set（6）Lower stomidium, second bearing（7）Outer rim upper surface is close to
Two adjusting sleeves（6）Lower face；Second bearing（7）Outer cylinder and cylinder sleeve（3）The inner cylinder clearance fit at middle part；
3rd adjusting sleeve（8）It is embedded into central tube（2）The first groove（17）It is interior；Lower contact（9）Upper end hole entangle central tube
（2）Lower part and the 3rd adjusting sleeve（8）Outside diameter lower part；Lower contact（9）First in warp（21）With the 3rd adjusting sleeve（8）Lower part
Crest clearance coordinate, lower contact（9）Minimum in warp and central tube（2）The crest clearance of lower part coordinates；Lower contact（9）It is upper
Cylinder sleeve is inserted at end（3）Lower stomidium in, lower contact（9）The first face（23）Abut cylinder sleeve（3）The second face（20）, lower contact
（9）The outer cylinder and cylinder sleeve at middle part（3）The inner cylinder of lower part is threadedly coupled；Lower contact（9）Outer rim upper surface close to the second axis
Hold（7）Lower face；
In top connection（1）On the first groove（10）It is built into sealing ring；Cylinder sleeve（3）On the first groove（18）It is built into sealing
Ring；Lower contact（9）On the first groove（22）It is built into sealing ring；Lower contact（9）On the second groove（24）It is built into sealing
Ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721452905.8U CN207363644U (en) | 2017-11-03 | 2017-11-03 | A kind of rotary disconnector for underground scraping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721452905.8U CN207363644U (en) | 2017-11-03 | 2017-11-03 | A kind of rotary disconnector for underground scraping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207363644U true CN207363644U (en) | 2018-05-15 |
Family
ID=62346060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721452905.8U Active CN207363644U (en) | 2017-11-03 | 2017-11-03 | A kind of rotary disconnector for underground scraping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207363644U (en) |
-
2017
- 2017-11-03 CN CN201721452905.8U patent/CN207363644U/en active Active
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