CN2353880Y - Follow-up-centring polish-rod sealer for oil-pumping well mouth - Google Patents
Follow-up-centring polish-rod sealer for oil-pumping well mouth Download PDFInfo
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- CN2353880Y CN2353880Y CN 98222729 CN98222729U CN2353880Y CN 2353880 Y CN2353880 Y CN 2353880Y CN 98222729 CN98222729 CN 98222729 CN 98222729 U CN98222729 U CN 98222729U CN 2353880 Y CN2353880 Y CN 2353880Y
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- polished rod
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- polish
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Abstract
The utility model relates to a follow-up-centering polish-rod sealer for an oil-pumping well mouth, belonging to a sealing device for a well mouth. The utility model is composed of a centering part, a polish-rod sealing part, a pumping stop and well close part, an oil stealing prevention part, and a burs of the polish-rod scrape part, wherein, the centering part adopts a ball head universal mechanism, and the centering part is positioned at the lower part of the utility model; the inner sides of the ball head and a ball head rod are provided with tertiary polish-rod sealing elements; the pumping stop and well close part is positioned between a secondary seal and a tertiary seal; a lock core and a lock casing are arranged at the point of a screwed joint to prevent from relaxing and stealing oil; the burs of the polish-rod scrape part is arranged at the upmost upper end of the utility model. The utility model can move with the oil-pumping polish-rod, which causes the sealing elements to be in a same shaft center with the polish-rod all the time. The utility model has the advantages of eccentric wear prevention, good seal, oil stealing prevention, and burrs of the polish-rod scrape.
Description
The utility model relates to the sealing of well or well head, and the especially sealing of well head particularly is a kind of mouth of pumped oil well servo-actuated centering polished rod sealer.
When pumping unit of well is installed, require oil-extractor polish-rod and well mouth sealing device concentric, in fact can have skewed error, especially oil pumper more can produce deflection in various degree after operation a period of time, and its angle excursion is greatly about 0-8 °.This just makes and polished rod and well mouth sealing device generation eccentric wear causes wearing and tearing to be scrapped.Sealed packing wearing and tearing wherein are faster, will change packing one time in the pumpingh well 3-5 that has days, both influenced oil pumping and produced, easy again contaminated environment.When oil pumper stop pumping maintenance activity, need to block polished rod in addition,, also be easy to damage well head and packing, normally manually dispose protruding shuttle or burr with file to making polished rod protruding shuttle or burr occur with instruments such as pipe wrench, weak effect, efficiency is low.It is to be unloaded loose stolen by the lawless person easily that original well mouth sealing device also has a shortcoming, causes damage or causes accident.The problems referred to above are perplexing the ordinary production and the maintenance management of pumpingh well for many years always.Patent documentation by retrieval, the well mouth sealing device patent existing 20 with sucker rod adjusting function is multinomial.Can only be the when mounted artificial tuningout of major part wherein, can not be when oil pumper moves servo-actuated centering, No. 922357447 patents for example, No. 962048135 patents.What also have has guard against theft oil function, for example No. 952346818 patents.Small part has the automatic deflection adjusting function, No. 91231296 patents of example, but structure more complicated, and installation and maintenance are convenient inadequately.In a word, with the patent documentation analysis contrast that retrieves, its structure has nothing in common with each other, have his own strong points, but all unsatisfactory.
The purpose of this utility model provides a kind of distinguished mouth of pumped oil well servo-actuated centering polished rod sealer, not only realizes servo-actuated tuningout centering.And can strike off protruding shuttle or burr on the polished rod voluntarily, also have the guard against theft oil function, and structure is simpler, is easy for installation and maintenance.
Above-mentioned purpose is realized by following technical proposals:
This mouth of pumped oil well servo-actuated centering polished rod sealer comprises well head tuningout part, polished rod seal part, stop pumping closing well part, guard against theft oil part and strikes off polished rod burr part.It is characterized in that the well head tuningout partly adopts the bulb omnidirectional mechanism, and be in the bottom, form by bulb and ball rod, ball cup, bulb gland and " O " shape sealing ring; The polished rod seal part is made up of three grades of sealings, is primary seal between bulb endoporus and the polished rod, is secondary seal between ball rod lower lumen and the polished rod, is three grades of sealings between ball rod top inner chamber and the polished rod; The stop pumping closing well partly is between secondary and the three grades of sealings, is made up of left and right sides valve plate and assembly dottle pin, valve plate skeleton, circlip, pressure pad, seat cushion, valve shaft and valve shaft fairlead, and its axis is vertical with polished rod; Guard against theft oil partly has two places, and one place, bottom is arranged on ball cup and the two thread connection place of bulb gland, and one place, top is arranged on ball rod upper end and the two thread connection place of packing pressure cap, and two places form by lock core and lock housing; Strike off the polished rod burr and partly be arranged on topmost, form by C shape alloy knife, alloy knife rest and alignment pin.
The ball cup of above-mentioned tuningout part is following, and the bulb gland wraps in inside last with bulb." O " shape sealing ring has four roads, and there are twice at ball cup and bulb fitting face place, and the bulb gland has with bulb fitting face place, and the ball cup upper surface has with bulb gland contact surface place.
Above-mentioned ball cup first half external diameter is greater than the Lower Half external diameter.The first half has the external screw thread that matches with the bulb gland, and Lower Half has the internal thread that matches with oil pipe, and there is the sphere that matches with bulb inside, and semicircular lubricated liquid bath is together arranged on the sphere.
There is the sphere that matches with bulb above-mentioned bulb gland first half inside, and semicircular lubricated liquid bath is together arranged on the sphere, and Lower Half has the internal thread that matches with ball cup.
The lower part of above-mentioned bulb parts is that bulb top is ball rod.The endoporus and the oil-extractor polish-rod of bulb part are slidingly matched, and there is a groove that primary seal is installed inside, and the inner chamber of ball rod part is being adorned secondary seal, left and right sides valve plate and assembly thereof, three grades of sealings from bottom to top successively.
One-level in the above-mentioned hermetic unit, secondary seal are the Yx oil sealing, and three grades are sealed into packing_seal.
The left and right sides valve plate of above-mentioned stop pumping closing well part is semi-circular, makes its cylindrical top embedded with metal valve plate skeleton with oil resistant rubber.The head of valve shaft snaps in the valve plate skeleton and withstands the valve plate cylindrical, and there are pressure pad, circlip and seat cushion in the valve plate top, and there is dottle pin the below, and valve shaft stretches out from the radial hole of ball rod, and the outside is a fairlead.
The lock core of above-mentioned guard against theft oil part has external screw thread, and lock housing has associated screwed hole.The lock housing of bottom is welded in bulb gland lower side, and bulb gland side also has identical screwed hole herein, and the ball cup side has the jack that matches with the lock core head herein; The lock housing on top is welded in packing pressure cap lower side, and packing pressure cap side also has the screwed hole identical with lock housing herein, and the jack that matches with the lock core head is arranged herein at ball rod top.
The above-mentioned polished rod burr partial C shape alloy knife that strikes off is contained on the alloy knife rest.The similar nut of alloy knife rest is divided into two semicircles, is connected as a body by alignment pin, has annular boss to be stuck in the cannelure of packing pressure cap upper surface below it, can rotate around oil-extractor polish-rod, can wipe burr or fin scar on the polished rod off.
The mouth of pumped oil well servo-actuated centering polished rod sealer of making according to technique scheme, when oil-extractor polish-rod and well head decentraction (skew or inclination), when polished rod is up and down reciprocatingly twitched, can drive bulb and partly deflect into required angle, make polished rod all the time with the seal components that is contained in the bulb, be on the same axis, thereby the eccentric wear phenomenon no longer takes place.Owing to adopted the totally three grades of sealings of two-stage Yx oil sealing and packing, its sealing effectiveness is all better than prior art.Stop pumping closing well part is simplified more than prior art and is dwindled, and manufacturing cost further reduces.Owing to adopted guard against theft oil mechanism, its thread connection place, two places is unloaded the core of not unblanking by the fixing pinning of lock core without special tool, has prevented that effectively the lawless person from unloading loose stolen even accidents caused.Striking off polished rod burr mechanism and can replacing handwork of its upper end once struck off burr or the fin that occurs on the polished rod, not only saves time but also laborsaving.Because its structure is simpler, processing and manufacturing easily, installation and maintenance are all very convenient, more help applying.
Accompanying drawing 1 is that overall structure of the present utility model is partly cutd open schematic diagram.
Accompanying drawing 2 is that the top A of Fig. 1 is to view.
Accompanying drawing 3 is B-B view profiles of Fig. 1.
Accompanying drawing 4 is local enlarged diagrams of Fig. 1 middle part stop pumping closing well part.
In conjunction with the accompanying drawings embodiment of the present utility model is described below:
In the accompanying drawing, the 1st, ball cup, the 2, the 3rd, " O " shape sealing ring of different-diameter, the 7th, bulb, the 16th, ball rod, 7 and 16 is one, the 8th, the bulb gland has been formed the bulb adjusting deviation device with upper-part, as shown in Figure 1.6.1 be one-level Yx oil sealing, be contained in the groove of bulb 7 endoporus, the 6, the 2nd, secondary Yx oil sealing is contained in ball rod 16 lower lumen, and the 17th, the packing pressure pad, the 18th, the packing pressure cap, the 25th, packing has been formed three grades of sealings of polished rod with upper-part, shown in Fig. 1 shows.Owing to play the bulb 7 of tuningout effect in the bottom, and long ball rod 16 is arranged, also all be contained in bulb and the ball rod inner chamber owing to polished rod seal spare, with its concentric and become one, to be tuningout combine with sealing dexterously for this, so not only bulb, ball rod and seal together can servo-actuated centering polished rods, and deflection-regulating range is bigger, both solved the eccentric wear problem effectively, guaranteed again that sealing effectiveness was good.Among accompanying drawing 3 and Fig. 4, the 26th, left and right sides valve plate, the 12nd, the valve plate skeleton, the 11st, dottle pin, the 14th, back-up ring, the 13rd, circlip, the 15th, seat cushion, the 9th, valve shaft, the 10th, the valve shaft fairlead has been formed stop pumping closing well part with upper-part.When needs stopped oil pumping replacing packing 25, rotatable valve shaft 9 headed on left and right sides valve plate 26 forward and tightly suppresses oil-extractor polish-rod 20, plays the temporary sealing effect.Replacing finish packing 25 again backward rotation valve shaft 9 drive left and right sides valve plate 26 backward and leave oil-extractor polish-rod 20 and remove temporary sealing.The guard against theft oil part is made up of lock core 4 and lock housing 5 as shown in Figure 1, and two place's guard against theft oil parts are slightly different up and down, the bottom lock core is the vertex of a cone, and the top lock core is a flat-top, can pin the thread connection place after tightening, no special tool is difficult for rotational lock core 4 gets loose it, prevents stolen from here.Strike off polished rod burr part as depicted in figs. 1 and 2, form by semicircle alloy knife rest 22 and 24, alignment pin 23, C shape alloy knife 19.The 21st, the rubber back-up ring.When oil-extractor polish-rod was for the first time descending, alloy knife can be wiped burr on the polished rod or fin off automatically, and then it is taken down, and not overslaugh is normally pumped.
Claims (9)
1. mouth of pumped oil well servo-actuated centering polished rod sealer, comprise well head tuningout part, the polished rod seal part, stop pumping closing well part, guard against theft oil part and strike off polished rod burr part, it is characterized in that the well head tuningout partly adopts the bulb omnidirectional mechanism, and be in the bottom, by bulb and head rod, ball cup, bulb gland and " O " shape sealing ring are formed, the polished rod seal part is made up of three grades of sealings, it between bulb endoporus and the polished rod primary seal, it between ball rod lower lumen and the polished rod secondary seal, between ball rod top inner chamber and the polished rod three grades of sealings, the stop pumping closing well partly is between secondary and the three grades of sealings, by left and right sides valve plate and assembly dottle pin thereof, the valve plate skeleton, circlip, pressure pad, seat cushion, valve shaft and valve shaft fairlead are formed, its axis is vertical with polished rod, guard against theft oil partly has two places, one place, bottom is arranged on ball cup and the two thread connection place of bulb gland, one place, top is arranged on bulb polished rod upper end and the two thread connection place of packing pressure cap, two places form by lock core and lock housing, strike off the polished rod burr and partly be arranged on topmost, by C shape alloy knife, alloy knife rest and alignment pin are formed.
2. mouth of pumped oil well servo-actuated centering polished rod sealer according to claim 1, the ball cup that it is characterized in that the tuningout part is following, the bulb gland is last, bulb is wrapped in inside, " O " shape sealing ring has four roads, there are twice at ball cup and bulb fitting face place, and the bulb gland has with bulb fitting face place, and the ball cup upper surface has with bulb gland contact surface place.
3. mouth of pumped oil well servo-actuated centering polished rod sealer according to claim 1 and 2, it is characterized in that ball cup first half external diameter is greater than the Lower Half external diameter, the first half has the external screw thread that matches with the bulb gland, Lower Half has the internal thread that matches with oil pipe, there is the sphere of joining with bulb inside, and semicircular lubricated liquid bath is together arranged on the sphere.
4. mouth of pumped oil well servo-actuated centering polished rod sealer according to claim 1 and 2 is characterized in that there is the sphere that matches with bulb bulb gland first half inside, and semicircular lubricated liquid bath is together arranged on the sphere, and Lower Half has the internal thread that matches with ball cup.
5. mouth of pumped oil well servo-actuated centering polished rod sealer according to claim 1 and 2, it waits to levy is that the bottom of bulb parts is that bulb top is ball rod, the endoporus and the oil pumping polish rod of bulb part are slidingly matched, there is a groove that primary seal is installed inside, and the inner chamber of ball rod part is being adorned secondary seal, left and right sides valve plate and assembly thereof, three grades of sealings from bottom to top successively.
6. mouth of pumped oil well servo-actuated centering polished rod sealer according to claim 1 is characterized in that one-level, secondary seal are the Yx oil sealing, and three grades are sealed into packing_seal.
7. mouth of pumped oil well servo-actuated centering polished rod sealer according to claim 1, the left and right sides valve plate that it is characterized in that stop pumping closing well part is semi-circular, make with oil resistant rubber, its cylindrical top embedded with metal valve plate skeleton, the head of valve shaft snaps in the valve plate skeleton and withstands the valve plate cylindrical, and there are pressure pad, circlip and seat cushion in the valve plate top, and there is dottle pin the below, valve shaft stretches out from the radial hole of ball rod, and the outside is a fairlead.
8. mouth of pumped oil well servo-actuated centering polished rod sealer according to claim 1, the lock core that it is characterized in that the guard against theft oil part has external screw thread, lock housing has associated screwed hole, the lock housing of bottom is welded in bulb gland lower side, bulb gland side also has identical screwed hole herein, the ball cup side has the jack that matches with the lock core head herein, the lock housing on top is welded in packing pressure cap lower side, the packing pressure cap also has identical screwed hole herein, and the jack that matches with the lock core head is arranged herein at ball rod top.
9. mouth of pumped oil well servo-actuated centering polished rod sealer according to claim 1, it is characterized in that striking off polished rod burr partial C shape alloy knife is contained on the alloy frame, the alloy knife rest is divided into two semicircles, be connected as a body by alignment pin, have annular boss to be stuck in the cannelure of packing pressure cap upper surface below it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98222729 CN2353880Y (en) | 1998-10-25 | 1998-10-25 | Follow-up-centring polish-rod sealer for oil-pumping well mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98222729 CN2353880Y (en) | 1998-10-25 | 1998-10-25 | Follow-up-centring polish-rod sealer for oil-pumping well mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2353880Y true CN2353880Y (en) | 1999-12-15 |
Family
ID=33973996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98222729 Expired - Fee Related CN2353880Y (en) | 1998-10-25 | 1998-10-25 | Follow-up-centring polish-rod sealer for oil-pumping well mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2353880Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608537B (en) * | 2009-06-26 | 2012-11-28 | 大庆油田有限责任公司 | Multifunctional oil-extractor polish-rod double-aligning anti-theft mobile packing box |
| CN103061704A (en) * | 2013-01-28 | 2013-04-24 | 黄胜志 | Metal polished rod sealer with function of automatic wear compensation |
| CN103161421A (en) * | 2013-03-18 | 2013-06-19 | 张学海 | Oil pumping polished rod lubrication sealing device |
-
1998
- 1998-10-25 CN CN 98222729 patent/CN2353880Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608537B (en) * | 2009-06-26 | 2012-11-28 | 大庆油田有限责任公司 | Multifunctional oil-extractor polish-rod double-aligning anti-theft mobile packing box |
| CN103061704A (en) * | 2013-01-28 | 2013-04-24 | 黄胜志 | Metal polished rod sealer with function of automatic wear compensation |
| CN103161421A (en) * | 2013-03-18 | 2013-06-19 | 张学海 | Oil pumping polished rod lubrication sealing device |
| CN103161421B (en) * | 2013-03-18 | 2016-04-06 | 张学海 | Oil pumping polish rod lubricating and sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |