CN208267784U - Device is cut outside oil pipe righting mechanism and application its closed oil pipe - Google Patents
Device is cut outside oil pipe righting mechanism and application its closed oil pipe Download PDFInfo
- Publication number
- CN208267784U CN208267784U CN201820407344.8U CN201820407344U CN208267784U CN 208267784 U CN208267784 U CN 208267784U CN 201820407344 U CN201820407344 U CN 201820407344U CN 208267784 U CN208267784 U CN 208267784U
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- CN
- China
- Prior art keywords
- righting
- idler wheel
- revolving body
- cutter
- oil pipe
- 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- Withdrawn - After Issue
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Abstract
Device, which is cut, outside oil pipe righting mechanism and application its closed oil pipe is related to technical field of petroleum machinery, including shell (1) and the revolving body component being located in shell (1), shell (1) is equipped with driving device (2) and is connect by gear (3) with revolving body component, revolving body component in barrel chamber be equipped with resistance elements and righting component, resistance elements include resistance cylinder (4), friction plate (5), pressure spring (6) and friction hub (7), and righting component includes idler wheel thrust cylinder (8), idler wheel centralizing arm (9) and righting idler wheel (10).It has the advantages that design rationally, good cutting effect, work efficiency is high, safe and reliable, can be used for workover rig workover treatment with pressure, when use, is installed in workover operation device high pressure section with pressure, between two groups of preventers.Oil pipe righting mechanism can make cutting not generate bias, avoid phenomenon of forging a knife actively by oil pipe with cutter central alignment.
Description
Technical field
The utility model relates to technical field of petroleum machinery, and in particular to a kind of oil pipe righting mechanism and the closing using it
Device is cut outside formula oil pipe.
Background technique
Operation device under pressure annular space sealing technique accomplishes mature and reliable substantially at present, but the multiple underground works in shaft bottom in operation
The interior choked technique of tool is difficult point always.Domestic unit develops returnable fishing spear blanking plug cooperation blind rams and pours out without interior blocking
Downhole tool work flow, in the lowermost blanking plug Operating Pressure accomplished below；This work flow is required in equipment height
One is provided in pressure inner cavity and is able to use the oil pipe port that returnable fishing spear blanking plug salvages simultaneously closed upper end, and this requires works with pressure
Industry device can carry out shackle to specified connector in device high pressure lumen, or directly position needed to cut off oil pipe pipe
Column.
Oil pipe upper end is necessarily in closed state (otherwise with regard to blowout) when due to Operating Pressure, can not be using tradition
Oil pipe internal cutter carry out cutting operation, can only operation device under pressure high pressure lumen be arranged cutter device complete cutting operation.
It manages circumscribed tapping with cutter to carry out the scheme of ring cutting presently, there are the difficulties that concentricity is difficult to ensure, this will make knife
Tool generates bias in cutting, and when cutting being made to proceed to the later period, section tubular wall is cut through, and still has section tubular wall to be connected to one
It rises, the cutter rotated around tubing string at this moment will be made to generate phenomenon of forging a knife.
Summary of the invention
The technical problem to be solved by the utility model is in view of the above-mentioned problems, providing a kind of oil pipe righting mechanism and answering
Device is cut outside closed oil pipe with it.
The technical solution of the utility model is: oil pipe righting mechanism, including shell and is located at the intracorporal revolving body of shell
Component, shell are equipped with driving device and are connect by gear with revolving body component, drive it to rotate in shell, revolving body component
For cylindrical body, revolving body component in being equipped with resistance elements and righting component in barrel chamber, resistance elements include resistance cylinder, friction plate,
Spring press with friction hub, resistance cylinder is connect with shell, and resistance cylinder is connect with friction hub by friction plate, and pressure spring, which is against, to rub
It presses in pad to it, righting component includes idler wheel thrust cylinder, idler wheel centralizing arm and righting idler wheel, and idler wheel thrust cylinder, which is provided with, to be used for
The righting window that righting idler wheel passes through, idler wheel thrust cylinder connect and rotate with it with friction hub, and idler wheel centralizing arm one end is hinged on
Idler wheel thrust cylinder is outer and rotates with idler wheel thrust cylinder, and righting idler wheel is rotatably mounted to the free end of idler wheel centralizing arm, idler wheel
The interlude of righting arm is equipped with righting and drives idler wheel, and the barrel chamber wall of revolving body component is equipped with the arc that ecto-entad moves closer to and helps
Front and righting driving idler wheel cooperation, to drive idler wheel centralizing arm to keep righting idler wheel close to center.
The technical effect of the utility model is: it has, design is reasonable, good cutting effect, work efficiency is high, safe and reliable
The advantages of, can be used for workover rig workover treatment with pressure, when use is installed in workover operation device high pressure section with pressure, two groups it is anti-
Between spray apparatus.Oil pipe righting mechanism can make cutting not generate bias, avoid forging a knife existing actively by oil pipe with cutter central alignment
As occurring.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model；
Fig. 2 is the structural schematic diagram that the utility model revolving body, cutter drive slope surface with it；
Fig. 3 is the structural schematic diagram of the utility model cutter return slot；
Fig. 4 is that the utility model righting component and its arc help positive structural schematic diagram；
Fig. 5 is the structural schematic diagram of the utility model righting return slot.
Specific embodiment
As shown in Fig. 1 to 5, oil pipe righting mechanism, including shell 1 and the revolving body component that is located in shell 1, on shell 1
It is connect by gear 3 with revolving body component equipped with driving device 2, it is driven to rotate in shell 1, revolving body component is tubular
Body, for revolving body component in being equipped with the resistance elements righting component that righting tubing string acts on in barrel chamber, resistance elements include resistance
Cylinder 4, friction plate 5, pressure spring 6 and friction hub 7, resistance cylinder 4 are connect by spline with shell 1, and resistance cylinder 4 and friction hub 7 are logical
The connection of friction plate 5 is crossed, pressure spring 6, which is against on friction plate 5 to it, to press, and righting component includes idler wheel thrust cylinder 8, idler wheel centralizing
Arm 9 and righting idler wheel 10, idler wheel thrust cylinder 8 are provided with the righting window 11 passed through for righting idler wheel 10, idler wheel thrust cylinder 8 with rub
It wipes hub 7 to connect and rotate with it, 9 one end of idler wheel centralizing arm is hinged on outside idler wheel thrust cylinder 8 and rotates with idler wheel thrust cylinder, righting
Idler wheel 10 is rotatably mounted to the free end of idler wheel centralizing arm 9, and the interlude of idler wheel centralizing arm 9 is equipped with righting and drives idler wheel
12, the barrel chamber wall of revolving body component is equipped with the arc righting face 13 that ecto-entad moves closer to and righting driving idler wheel 12 cooperates,
To drive idler wheel centralizing arm 9 to keep righting idler wheel 10 close to center.Righting idler wheel 10 is at least three.
The barrel chamber wall of the revolving body component is equipped with righting return slot 14, and the idler wheel centralizing arm 9 is equipped with to protrude into and help
The righting return portion 15 of positive return slot 14, during revolving body component and idler wheel thrust cylinder 8 relatively rotate, idler wheel centralizing arm
9 make 9 return of idler wheel centralizing arm by righting return slot 14 and the cooperation of righting return portion 15.Return mode can also be using reset bullet
The conventional structures such as spring.
The revolving body component is equipped with righting lower cover 16 in the lower section of idler wheel centralizing arm 9, and the righting return slot 14 is located at
On righting lower cover 16.
The driving device 2 is hydraulic motor.
Device is cut outside closed oil pipe, the revolving body component includes cutting in being equipped with cutting assembly, cutting assembly in barrel chamber
Knife cylinder 17, cutter bar 18 and cutter 19, cutting knife cylinder 17 are provided with the cutter window 20 passed through for cutter 19, cutting knife cylinder 17 and friction
Hub 7 is connected and is rotated with it, and 18 one end of cutter bar is hinged on outside cutting knife cylinder 17 and rotates with cutting knife cylinder 17, and cutter 19 is located at cutter
The free end of bar 18, the interlude of cutter bar 18 are equipped with cutter driving idler wheel 21, and the barrel chamber wall of revolving body component is equipped with driving slope
Face 22 and cutter driving idler wheel 21 cooperate, to drive cutter bar 18 to keep cutter 19 close to center.Idler wheel thrust cylinder 8 is logical
Cutting knife cylinder 17 is crossed to connect with friction hub 7.
The barrel chamber wall of the revolving body component is equipped with cutter return slot 23, and the cutter bar 18, which is equipped with, protrudes into righting time
The cutter return portion 24 of position slot 14, during revolving body component and cutting knife cylinder 17 relatively rotate, cutter bar 18 passes through cutter
Return slot 23 and the cooperation of cutter return portion 24 make 18 return of cutter bar.
The revolving body component includes revolving body upper cover 25, revolving body 26 and revolving body lower cover 27, and revolving body upper cover 25 is returned
Swivel 26 and revolving body lower cover 27 are from top to bottom arranged and are removably joined together, and the resistance elements are located on revolving body
Lid 25, cutting assembly are located at revolving body 26, and righting component is located at revolving body lower cover 27, and driving slope surface 22 is located in revolving body 26
Wall, cutter return slot 23 are located at 27 end face of revolving body upper cover 25 and/or revolving body lower cover.
Closed oil pipe cutter belongs to oil and gas industry equipment special, drills through device type, and inner cavity is high pressure work
Make chamber, pressure medium in well when shell needs that operation can be carried.In the inner cavity of high-tension apparatus, the specified section of tubular column string is cut off
Operation.Cutting operation needs the safety slip of lower part preventer group, the travelling on top or stationary slip fixed by Pipe Cutting when carrying out
Column.
Shell is made of upper housing, lower case and the connecting flange as end cap being located on upper housing, forms an envelope
Inner cavity closing, can carrying pressure, connecting flange are fixedly connected by locking plate with upper housing.Between upper housing and lower case
It is fixed with bolt.Resistance cylinder is connect by spline with connecting flange.The outer diameter face of revolving body has teeth, passes through gear and motor
Connection.
Resistance portion is by the friction hub for setting internal tooth, the resistance cylinder for setting external tooth, the friction plate lower cover being fixed under resistance cylinder, outer
Tooth friction plate, internal toothed friction plate, the thrust external tooth friction plate for setting spring fitting groove, compressed spring, the friction plate being pressed on spring
Upper cover, circlip for hole are constituted, and job specification is the multiplate clutch of a set of fixed resistance (referring to Fig. 1).On resistance cylinder
Portion's tooth is engaged with the connecting flange of upper housing to keep not rotating, and its underpart tooth is engaged with internal toothed friction plate, bottom and friction plate
It is fixed between lower cover with bolt.These parts do not rotate at work, constitute the fixation kit of clutch.
The hub inner upper that rubs is with screw thread and grooving, friction plate upper cover have external screw thread, and being screwed into after friction hub can be with
Spiral compression spring is compressed, is later packed into circlip for hole in the slot of friction hub, to limit the highest order of friction plate upper cover
It sets, avoids loosening.These parts can be pushed at work by cutter assembly to rotate, and constitutes the rotary components of clutch.
By the quantity or material that adjust external tooth friction plate, internal toothed friction plate, thus it is possible to vary friction area；It is pressed by adjusting
The size and quantity of contracting spring, thus it is possible to vary the contact pressure between friction plate.Two kinds of adjusting methods determine that resistance portion provides
Resistive torque size.
There is slope cavity structure inside revolving body, have multiple groups cutter to promote curve in ramp type chamber, every curve is by delaying
Slope arc section, abrupt slope straightway (driving slope surface) and transition arc between the two are constituted, and the abrupt slope straightway back side pushes away for withdrawing
Power section.Abrupt slope straightway and the straight line angle at an acute angle for passing through the part theory center of circle, cutting feed act all in abrupt slope straight line
Section is completed.
When cutting operation, rotary drive assembly pushes cutting driving assembly rotation, is cut resistance in work package at this time
Partial frictional drag effects, the entire work package that cuts do not rotate, and the ramp type chamber pushing rolling wheels of revolving body are transported to center of circle direction
Dynamic, the cutter of knife bar mounting base and its front end installation is moved to center of circle direction at faster speed.
In the point of a knife of cutter and when being cut column surface and contacting, ramp type chamber and idler wheel contact surface are abrupt slope straight lines at this time
Section, abrupt slope straightway can resolve into two component to the thrust of idler wheel: to the thrust in the part center of circle, to contact point circumferencial direction
Thrust be less than since abrupt slope straightway is with by the straight line angle at an acute angle in the part theory center of circle to the thrust in the center of circle
To the thrust of contact point circumferencial direction；Since the point of a knife of cutter is not readvanced by tubing string blocking, the drive of rotary drive assembly
Power is begun to ramp up, until overcoming the frictional resistance of resistance portion in cutting work package, cutter assembly drives resistance part at this time
Separation clutch rotary components start to rotate.Start the point of a knife of cutter after rotating to by two power of Pipe Cutting column while application, as cuts
Two cutting force of disconnected operation: being to cut radial feed power to the thrust in the center of circle, the thrust to contact point circumferencial direction is
Main cutting force, and the resistive torque that resistance portion provides is being the minimum cutting radial feed of system to the component in center of circle direction
Power, the driving force that rotary drive assembly provides remaining power after overcoming resistance assembly torque is main cutting force.
When revolving body rotates in cutting operation, righting idler wheel is rolled in intersegmental part righting slope surface under revolving body lower cover and is climbed
It rises, makes idler wheel centralizing arm front end to complete machine center movement by the promotion of righting slope surface, until the righting idler wheel contact on front wheel axis
To by cutting tubing string, and tubing string surface scrolls are compressed, realizes centralizing function.
For rear roller axis after passing through idler wheel centralizing arm, axis lower end extends downward into returning for righting lower cover in idler wheel centralizing component
In the slot of position.When rotary drive assembly pushes cutting driving assembly to reversely rotate after the completion of cutting, in the return slot of righting lower cover
Sideline pushes rear roller axis to move out, and idler wheel centralizing arm is made to be back to maximum unfolded state.
Claims (7)
1. oil pipe righting mechanism, which is characterized in that including shell (1) and the revolving body component being located in shell (1), shell (1)
It is equipped with driving device (2) to connect by gear (3) with revolving body component, drives its rotation, revolving body component in shell (1)
For cylindrical body, revolving body component includes resistance cylinder (4), friction in being equipped with resistance elements and righting component, resistance elements in barrel chamber
Piece (5), pressure spring (6) and friction hub (7), resistance cylinder (4) are connect with shell (1), and resistance cylinder (4) passes through with friction hub (7)
Friction plate (5) connection, pressure spring (6) are against on friction plate (5) to it and press, and righting component includes idler wheel thrust cylinder (8), rolling
Wheel righting arm (9) and righting idler wheel (10), idler wheel thrust cylinder (8) are provided with the righting window passed through for righting idler wheel (10)
(11), idler wheel thrust cylinder (8) connect and rotates with it with friction hub (7), and idler wheel centralizing arm (9) one end is hinged on idler wheel thrust cylinder
(8) it rotates outside and with idler wheel thrust cylinder, righting idler wheel (10) is rotatably mounted to the free end of idler wheel centralizing arm (9), idler wheel
The interlude of righting arm (9) is equipped with righting driving idler wheel (12), and the barrel chamber wall of revolving body component is moved closer to equipped with ecto-entad
Arc righting face (13) and righting driving idler wheel (12) cooperation, to drive idler wheel centralizing arm (9) make righting idler wheel (10) to
Center is close.
2. oil pipe righting mechanism as described in claim 1, which is characterized in that the barrel chamber wall of the revolving body component is equipped with and helps
Positive return slot (14), the idler wheel centralizing arm (9) are equipped with the righting return portion (15) for protruding into righting return slot (14), are turning round
During body component and idler wheel thrust cylinder (8) relatively rotate, idler wheel centralizing arm (9) is returned by righting return slot (14) and righting
Position portion (15) cooperation makes idler wheel centralizing arm (9) return.
3. oil pipe righting mechanism as claimed in claim 2, which is characterized in that the revolving body component is in idler wheel centralizing arm (9)
Lower section be equipped with righting lower cover (16), the righting return slot (14) is located on righting lower cover (16).
4. oil pipe righting mechanism as described in claim 1, which is characterized in that the driving device (2) is hydraulic motor.
5. cutting device, feature outside the closed oil pipe of oil pipe righting mechanism of the application as described in Claims 1-4 any one
It is, the revolving body component is in, equipped with cutting assembly, cutting assembly includes cutting knife cylinder (17), cutter bar (18) and cuts in barrel chamber
Knife (19), cutting knife cylinder (17) are provided with the cutter window (20) passed through for cutter (19), and cutting knife cylinder (17) is connect with friction hub (7)
And rotate with it, cutter bar (18) one end is hinged on cutting knife cylinder (17) outside and rotates with cutting knife cylinder (17), and cutter (19), which is located at, to be cut
The interlude of the free end of knife bar (18), cutter bar (18) is equipped with cutter driving idler wheel (21), and the barrel chamber wall of revolving body component is set
There are driving slope surface (22) and cutter driving idler wheel (21) to cooperate, to drive cutter bar (18) to lean on cutter (19) to center
Closely.
6. cutting device outside closed oil pipe as claimed in claim 5, which is characterized in that on the barrel chamber wall of the revolving body component
Equipped with cutter return slot (23), the cutter bar (18) is equipped with the cutter return portion (24) for protruding into righting return slot (14),
During revolving body component and cutting knife cylinder (17) relatively rotate, cutter bar (18) passes through cutter return slot (23) and cutter return
Portion (24) cooperation makes cutter bar (18) return.
7. cutting device outside closed oil pipe as claimed in claim 6, which is characterized in that the revolving body component includes revolving body
Upper cover (25), revolving body (26) and revolving body lower cover (27), revolving body upper cover (25), revolving body (26) and revolving body lower cover (27)
From top to bottom it is arranged and is removably joined together, the resistance elements is located at revolving body upper cover (25), and cutting assembly is located at
Revolving body (26), righting component are located at revolving body lower cover (27), and driving slope surface (22) is located at revolving body (26) inner wall, cutter return
Slot (23) is located at revolving body upper cover (25) and/or revolving body lower cover (27) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820407344.8U CN208267784U (en) | 2018-03-26 | 2018-03-26 | Device is cut outside oil pipe righting mechanism and application its closed oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820407344.8U CN208267784U (en) | 2018-03-26 | 2018-03-26 | Device is cut outside oil pipe righting mechanism and application its closed oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208267784U true CN208267784U (en) | 2018-12-21 |
Family
ID=64675848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820407344.8U Withdrawn - After Issue CN208267784U (en) | 2018-03-26 | 2018-03-26 | Device is cut outside oil pipe righting mechanism and application its closed oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208267784U (en) |
-
2018
- 2018-03-26 CN CN201820407344.8U patent/CN208267784U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200810 Address after: 157000 Dongsan Road, Dong'an District, Mudanjiang City, Heilongjiang Province Patentee after: Xin'an Mudanjiang petroleum drilling tools Fittings Factory Address before: 157000, No. 27 South Street, Tieling Town, Yangming District, Heilongjiang, Mudanjiang Patentee before: Yang Yinghui |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181221 Effective date of abandoning: 20230616 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181221 Effective date of abandoning: 20230616 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |