CN201794540U - Random automatic adjusting feed rod sealing device for oil pumping unit - Google Patents
Random automatic adjusting feed rod sealing device for oil pumping unit Download PDFInfo
- Publication number
- CN201794540U CN201794540U CN2010202374497U CN201020237449U CN201794540U CN 201794540 U CN201794540 U CN 201794540U CN 2010202374497 U CN2010202374497 U CN 2010202374497U CN 201020237449 U CN201020237449 U CN 201020237449U CN 201794540 U CN201794540 U CN 201794540U
- Authority
- CN
- China
- Prior art keywords
- spherical
- packing
- pressure cap
- groove
- connected body
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model provides a random automatic adjusting feed rod sealing device for an oil pumping unit, which can ensure that a feed rod aligns to the central position of an oil well. The random automatic adjusting feed rod sealing device comprises a spherical base, wherein, a spherical seat with an arc-shaped groove at the upper end is arranged at the upper part of the spherical base; the spherical seat is fixed on the spherical base through a translational pressing cap arranged outside the spherical seat; a spherical body with a first groove at the upper end is arranged at the upper part of the spherical seat; the spherical body is fixed on the spherical seat through a spherical pressing cap arranged outside the spherical body; a primary seal packing is arranged inside the first groove formed at the upper end of the spherical body; a coupling body with a second groove at the upper end is arranged at the upper part of the primary seal packing; primary packing pressing caps are arranged outside the upper end of the spherical body and the lower end of the coupling body; the upper end of the spherical body and the lower end of the coupling body are in threaded connection with the primary packing pressing caps; a secondary seal packing is arranged inside the second groove formed at the upper end of the coupling body; a secondary packing pressing cap is arranged outside the upper end of the coupling body; and the secondary packing pressing cap is in threaded connection with the upper end of the coupling body.
Description
Technical field:
The utility model relates to a kind of oil field random and automatic regulating polished rod sealing device of oil pumping machine.
Background technology:
At present, the sucker rod pumping equipment of being made up of oil pumper, sucker rod (being polished rod) and oil well pump still occupies critical role in the oil extraction of each elephant of China; And polish rod seal device is an indispensable mouth of pumped oil well sealing device in the sucker rod pumping equipment.Along with the oil field enters the high water-cut development later stage, because the quantity of high moisture, low submergence well constantly increases, rod and tube partial-wear well number rises year by year; Add pumping unit horsehead and well head does not align, increased the sealing difficulty and the maintenance cost of mouth of pumped oil well polish rod seal device greatly, had a strong impact on the economic benefit of oilfield exploitation.
Existing plain edition polish rod seal device (promptly conventional fixed) is the widely used a kind of polish rod seal device of sucker rod pumping equipment on the present oilfield; From form of structure and aspect such as operation requirements etc., it have simple in structure, easy to maintenance, to characteristics such as workman's operating technology requirement are relatively low.But there is following shortcoming in it: the sealing device is fixed in the production tree threeway through clip or screw thread, and in a single day well head installs the sealing device with respect to the position of polished rod also relative fixed; But because the deformation of member that the manufacturing of oil pumper and alignment error and load change cause, cause the factors such as swing at random of polished rod all can cause polished rod axis and problems such as seal body journal offset or deflection, thereby make polished rod do when pumping and sealing device packing unbalance stress on circumferential fitting face; Stressed big lateral wearing aggravation causes whole group packing to lose efficacy, and is serious even seal body is worn out.According to statistics, its axis runout well head axis or the ratio crooked with respect to well head account for more than 80% of sucker rod pumping well sum during polished rod work, and its side-play amount is 0～10mm, and angle of deviation is 1 °～5 °.The plain edition polish rod seal device has exposed the sealing frequent failure in process of production, the packing life-span is short, leakage, contaminated environment, the regularly tight packing of oil recovery workman are emitted in the crude oil race, stop well changes problems such as packing, packing dismounting difficulty, had a strong impact on the ordinary production in oil field, greatly reduce the production efficiency in oil field, influenced crude oil yield.
The utility model content:
At the problem that existing plain edition polish rod seal device exists, the utility model provides a kind of random and automatic regulating polished rod sealing device of oil pumping machine that guarantees the center of the relative oil well of polished rod.
To achieve these goals, the utility model adopts following technical scheme, a kind of random and automatic regulating polished rod sealing device of oil pumping machine, comprise the spherical base that is arranged on the oil well pipe, be provided with the spheric seat that the upper end has arc groove above spherical base, spheric seat is fixed on the spherical base by being arranged on its outside translation pressure cap; Be provided with the spherical that the upper end has first groove above spheric seat, the arc groove of spheric seat is corresponding with the lower end of spherical, and described spherical is fixed on the spheric seat by the spherical pressure cap that is arranged on its outside; Be provided with the primary seal packing in first groove of spherical upper end, described primary seal packing is corresponding with first groove of spherical upper end; Be provided with the upper end and have the connected body of second groove above the primary seal packing, in the outside of spherical upper end and the outer setting of connected body lower end one-level packing pressure cap is arranged, the upper end of spherical and the lower end of connected body and one-level packing pressure cap are to be threaded; Be provided with the secondary seal packing in second groove of connected body upper end, described secondary seal packing is corresponding with second groove of connected body upper end; Outer setting in connected body upper end has secondary packing pressure cap, and the upper end of secondary packing pressure cap and connected body is to be threaded; Middle part at described spherical base, spheric seat, spherical, primary seal packing, connected body, secondary seal packing and secondary packing pressure cap is provided with through hole, and described through hole is corresponding with polished rod.
Be provided with locking nut above described one-level packing pressure cap, locking nut is corresponding with the screw thread of connected body lower end.
Described primary seal packing adopts the oblique circular cylinder shape.
Described secondary seal packing adopts the oblique circular cylinder shape.
The beneficial effects of the utility model:
1, can adjust automatically at random:
Because the utility model is provided with spherical, spheric seat and spherical pressure cap, when the relative oil well pipe of sucker rod center is eccentric, just can adjust automatically at random by spherical of the present utility model and spheric seat, can guarantee the center of the relative oil well pipe of sucker rod by the relativity shift of spherical and spheric seat;
2, can enhance productivity:
The utility model is to be installed or when changing packing, adjusting screw(rod) is inserted in the screw hole of locking nut, screws locking nut and makes sealed packing hold polished rod tightly and it is closed, can avoid crude oil to leak, realize not stop pumping replacing packing, improved production efficiency, increased economic benefit.In addition, break when taking off phenomenon in case polished rod takes place, the utility model can prevent blowout and the pollution loss of bringing in time with the well head sealing;
3, can prolong the application life of packing:
The utility model can be tending towards evenly the sealed packing load distribution by the locking nut adjustment and the elimination wear extent of sealed packing, and its eccentric wear phenomenon also can alleviate greatly, has prolonged the application life of packing, has reduced the number of times of changing packing; Reduce frictional resistance simultaneously, reduced driving force, improved the reliability of packing_seal greatly, played energy-conservation effect.
Description of drawings:
Fig. 1 is the structural representation of sealing device of the present utility model;
Among the figure, 1-screw hole, 2-arc groove, 3-spherical, the spherical pressure cap of 4-, 5-first groove, 6-connected body, 7-secondary packing pressure cap, 8-second groove, 9-through hole, 10-polished rod, 11-secondary seal packing, the 12-locking nut, 13-one-level packing pressure cap, 14-primary seal packing, the 15-spheric seat, 16-translation pressure cap, 17-spherical base, the 18-oil well pipe, 19-screw thread, 20-gap.
The specific embodiment:
As shown in Figure 1, a kind of random and automatic regulating polished rod sealing device of oil pumping machine, comprise the spherical base 17 that is arranged on the oil well pipe 18, be provided with the spheric seat 15 that the upper end has arc groove 2 above spherical base 17, spheric seat 15 is fixed on the spherical base 17 by being arranged on its outside translation pressure cap 16; Be provided with the spherical 3 that the upper end has first groove 5 above spheric seat 15, the arc groove 2 of spheric seat 15 is corresponding with the lower end of spherical 3, and described spherical 3 is fixed on the spheric seat 15 by the spherical pressure cap 4 that is arranged on its outside; Be provided with primary seal packing 14 in first groove 5 of spherical 3 upper ends, described primary seal packing 14 is corresponding with first groove 5 of spherical 3 upper ends; Above primary seal packing 14, be provided with the connected body 6 that the upper end has second groove 8, in the outside of spherical 3 upper ends and the outer setting of connected body 6 lower ends one-level packing pressure cap 13 is arranged, the lower end of the upper end of spherical 3 and connected body 6 is connected with screw thread 19 with one-level packing pressure cap 13; Be provided with secondary seal packing 11 in second groove 8 of connected body 6 upper ends, described secondary seal packing 11 is corresponding with second groove 8 of connected body 6 upper ends; Outer setting in connected body 6 upper ends has secondary packing pressure cap 7, and the upper end of secondary packing pressure cap 7 and connected body 6 is to be threaded; Middle part at described spherical base 17, spheric seat 15, spherical 3, primary seal packing 14, connected body 6, secondary seal packing 11 and secondary packing pressure cap 7 is provided with through hole 9, and described through hole 9 is corresponding with polished rod 10.
Described spherical base 17 and oil well pipe 18 to be being threaded, and the translation pressure cap 16 of described spheric seat 15 outsides and spherical base 17 to be being threaded, and the spherical pressure cap 4 of described spherical 3 outsides and spheric seat 15 are to be threaded.The through hole and 10 on the polished rod at described spherical base 17 middle parts leave gap 20.
Be provided with locking nut 12 above described one-level packing pressure cap 13, locking nut 12 is corresponding with the screw thread 19 of connected body 6 lower ends.
Described primary seal packing 14, secondary seal packing 11 all adopt the oblique circular cylinder shape.
Described primary seal packing 14, secondary seal the packing 11 all side's of employing human relations material are made.
Below in conjunction with accompanying drawing the utility model is described further:
Spherical, spheric seat and spherical pressure cap are the self-regulating at random main elements of the utility model.When the relative oil well pipe of sucker rod center is eccentric, just can adjust automatically at random by spherical of the present utility model and spheric seat, can guarantee the center of the relative oil well pipe of sucker rod by the relativity shift of spherical and spheric seat.
Sealed packing is a main seal member of the present utility model.The utility model compresses sealed packing by the packing pressure cap, holds polished rod realization sealing tightly thereby make to contract in its aperture.These parts are to be made by square human relations material, and it utilizes the characteristics of its Chinese People's Anti-Japanese Military and Political College's load and self-lubricating, and its mill resistance is reduced greatly, have reduced driving force, have improved the reliability of packing_seal greatly.
The utility model is to be installed or when changing packing, adjusting screw(rod) is inserted in the screw hole of locking nut, screws locking nut and makes sealed packing hold polished rod tightly and it is closed, can avoid crude oil to leak, realize not stop pumping replacing packing, improved production efficiency, increased economic benefit.In addition, break when taking off phenomenon in case polished rod takes place, the utility model can prevent blowout and the pollution loss of bringing in time with the well head sealing.
The utility model need be followed the tracks of the adjustment locking nut.During operate as normal, polished rod is done and is pumped, and a square plate root of polished rod deflection will be subjected to bigger load, be directed at its wearing and tearing.The utility model can be tending towards evenly the sealed packing load distribution by the locking nut adjustment and the elimination wear extent of sealed packing, and its eccentric wear phenomenon also can alleviate greatly, has prolonged the application life of packing, has reduced the number of times of changing packing; Reduce frictional resistance simultaneously, reduced driving force, played energy-conservation effect.
Claims (4)
1. random and automatic regulating polished rod sealing device of oil pumping machine, it is characterized in that comprising the spherical base that is arranged on the oil well pipe, be provided with the spheric seat that the upper end has arc groove above spherical base, spheric seat is fixed on the spherical base by being arranged on its outside translation pressure cap; Be provided with the spherical that the upper end has first groove above spheric seat, the arc groove of spheric seat is corresponding with the lower end of spherical, and described spherical is fixed on the spheric seat by the spherical pressure cap that is arranged on its outside; Be provided with the primary seal packing in first groove of spherical upper end, described primary seal packing is corresponding with first groove of spherical upper end; Be provided with the upper end and have the connected body of second groove above the primary seal packing, in the outside of spherical upper end and the outer setting of connected body lower end one-level packing pressure cap is arranged, the upper end of spherical and the lower end of connected body and one-level packing pressure cap are to be threaded; Be provided with the secondary seal packing in second groove of connected body upper end, described secondary seal packing is corresponding with second groove of connected body upper end; Outer setting in connected body upper end has secondary packing pressure cap, and the upper end of secondary packing pressure cap and connected body is to be threaded; Middle part at described spherical base, spheric seat, spherical, primary seal packing, connected body, secondary seal packing and secondary packing pressure cap is provided with through hole, and described through hole is corresponding with polished rod.
2. a kind of random and automatic regulating polished rod sealing device of oil pumping machine according to claim 1 is characterized in that being provided with locking nut above described one-level packing pressure cap, and locking nut is corresponding with the screw thread of connected body lower end.
3. a kind of random and automatic regulating polished rod sealing device of oil pumping machine according to claim 1 is characterized in that described primary seal packing adopts the oblique circular cylinder shape.
4. a kind of random and automatic regulating polished rod sealing device of oil pumping machine according to claim 1 is characterized in that described secondary seal packing adopts the oblique circular cylinder shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202374497U CN201794540U (en) | 2010-06-25 | 2010-06-25 | Random automatic adjusting feed rod sealing device for oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202374497U CN201794540U (en) | 2010-06-25 | 2010-06-25 | Random automatic adjusting feed rod sealing device for oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201794540U true CN201794540U (en) | 2011-04-13 |
Family
ID=43849455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202374497U Expired - Fee Related CN201794540U (en) | 2010-06-25 | 2010-06-25 | Random automatic adjusting feed rod sealing device for oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201794540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864917A (en) * | 2010-06-25 | 2010-10-20 | 辽宁中瑞科技有限公司 | Random and automatic regulating polished rod sealing device of oil pumping machine |
-
2010
- 2010-06-25 CN CN2010202374497U patent/CN201794540U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864917A (en) * | 2010-06-25 | 2010-10-20 | 辽宁中瑞科技有限公司 | Random and automatic regulating polished rod sealing device of oil pumping machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101864917A (en) | Random and automatic regulating polished rod sealing device of oil pumping machine | |
| CN200971758Y (en) | Sealer for wellhead polish rod of pumping well | |
| CN2937459Y (en) | Double-offset polish rod sealer for pumping well | |
| CN105443069A (en) | Multifunctional well mouth sealing blowout-prevention box | |
| CN202325357U (en) | Multifunctional pumping wellhead sealing device | |
| CN202391375U (en) | Self-pressurizing self-lubricating offset-regulating sealing device for polish rod | |
| CN201794540U (en) | Random automatic adjusting feed rod sealing device for oil pumping unit | |
| CN202325370U (en) | Two-stage sealing eccentricity-preventing blowout preventer of sucker rod | |
| CN209339895U (en) | Adjustable offset pumping unit rod sealing device | |
| CN202900128U (en) | Oil pumping polish rod deviation adjusting packing box | |
| CN200989177Y (en) | Polishing rod sealing device | |
| CN201034022Y (en) | Eccentric-wear preventive eccentric adaptor of pumping rod | |
| CN203516078U (en) | Mechanical strongly-twisted plunger rotator | |
| CN103388467B (en) | Bidirectional displacement deflection correction type sucker rod sealer | |
| CN101839115A (en) | Centralizer depending on well crude oil lubrication | |
| CN207348806U (en) | A kind of polished rod of pumping well erection device | |
| CN203835317U (en) | Bidirectional displacement-deviation-rectifying-type sucker rod sealer | |
| CN203626692U (en) | Automatic backflow type well head sealing device | |
| CN202300286U (en) | Eccentric wear prevention well head device for oil extraction of oil field | |
| CN208619089U (en) | A kind of dual rotary oil-sucker | |
| CN205824255U (en) | Dress formula fixing ball valve in one | |
| CN205135447U (en) | Rotation type anticreep sucker rod collar | |
| CN211777310U (en) | Oil well head device for oil field | |
| CN207296908U (en) | A kind of proof-wear sucker rod centralising device suitable for light crude oil | |
| CN201972645U (en) | Multifunctional sealing device for polished rod at well head of oil pumping unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20130625 |