CN2305483Y - Polish rod double ball sealing device for pumping well - Google Patents
Polish rod double ball sealing device for pumping well Download PDFInfo
- Publication number
- CN2305483Y CN2305483Y CN 97234925 CN97234925U CN2305483Y CN 2305483 Y CN2305483 Y CN 2305483Y CN 97234925 CN97234925 CN 97234925 CN 97234925 U CN97234925 U CN 97234925U CN 2305483 Y CN2305483 Y CN 2305483Y
- Authority
- CN
- China
- Prior art keywords
- polished rod
- packing
- big
- pressure cap
- pumpingh well
- 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
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- Sealing Devices (AREA)
Abstract
The utility model relates to a polish rod packing box and a polish rod sealing device which are arranged at an oil pumping well head. A novel polish rod sealing device with double balls for an oil pumping well adopts a double-ball structure, the double-seat functions of the polish rod packing box and the polish rod sealing device, and a movable stuffing box. The utility model has the characterized in that a polish rod can move in three-dimensional directions when the polish rod works, the eccentric friction between the polish rod and packing is overcome, and the packing can be replaced quickly and conveniently on site.
Description
The utility model relates to a kind of two ball sealers of pumpingh well polished rod that can seal and have the certain deviation amount in 360 ° of scopes of horizontal plane, belongs to the oil production equipment class.
In the oil well liter is adopted, after flowing life finishes, need carry out the artificial lift exploitation, the most frequently used in the middle of this, consumption is maximum is pumping production.Pumping unit horsehead hangs oil pumping polish rod; sucker rod and oil well pump etc. move back and forth and finish the oil pumping operation; crude oil does not leak in the oil pumping operation in order to make; so on the mouth of pumped oil well device, polished rod stuffing box and polished rod sealer must be installed; but the oil pumping horse head is when moving back and forth; from the top dead-centre to the bottom dead centre; its center suspension point projection on well head does not remain its center; this causes owing to oil pumper foozle and alignment error; and this foozle is in the manufacturing acceptance criteria of oil pumper; this off-centring provides certain allowable error value; because the off-centring in moving back and forth causes oil pumping polish rod and Polish rod packing etc. to produce eccentric wear, causes crude oil to leak; both pollute working environment, increase to shut down changed economic loss that packing causes and operator's labour intensity again.
The purpose of this utility model; the two ball sealers of a kind of pumpingh well polished rod are disclosed; based on pumping unit horsehead in reciprocating motion; skew takes place at its center is inevitable; that designs a kind of polished rod sealer that can seal and have the certain deviation amount in 360 ° of scopes of horizontal plane; because off-centring causes the shortcoming of oil pumping polish rod and packing eccentric wear, increase its application life to overcome, reduce because frequent the shutdown changed economic loss and the manipulation strength that packing box brought.
In order to achieve the above object: the utility model is achieved like this: at first utilize ball and the characteristics of adjusted in any direction within the specific limits, adopt two spherical structures, on three-dimensional, move when making polished rod work, cause polished rod and the serious eccentric wear of packing to overcome pumping unit horsehead and well head decentraction, secondly Polish rod packing is divided into two parts up and down, the sealing polished rod was used when the top packing was used for normally pumping, sealed well internal pressure when the bottom packing is changed the top packing when needs, the replacing operation can be carried out safely, the 3rd in order to make on-the-spot replacing packing quick, convenient, adopt movable stuffing-box, polished rod bottom packing is contained in the spherula, and polished rod top packing is contained in the movable stuffing-box, movable stuffing-box is contained in the sealed pressing sleeve again, polished rod top packing is compressed by pressure cap, sealed pressing sleeve is with being threaded in the spherula, and stop screw prevents that it from withdrawing from, in normal oil pumping operation process, it is pinned by lock-screw, prevent to move down, utilize the sphere characteristics of adjusted in any direction within the specific limits, big spheroid is swung on the horizontal plane any direction within the specific limits, spherula was both swung arbitrarily at horizontal plane with big spheroid, can keep oil pumping polish rod to be in vertical reciprocating motion again, in order to prevent draining, " O " RunddichtringO reaches in the clip head with being installed in the sealing of big spheroid, and spherula then is to seal with " O " sealing ring that is installed in the big spheroid; Simultaneously, in sealed pressing sleeve, movable stuffing-box is housed, interior dress polished rod top packing, therefore, when normally pumping operation, organize packing thus sucker rod is sealed, polished rod bottom packing also is housed in spherula, it is when polished rod top packing need carry out the scene replacing, just the tight screw of releasable lock, screw off sealed pressing sleeve, so just can compress polished rod bottom packing, leak to prevent that OIH from pressing, can dismantle pressure cap this moment, extract movable stuffing-box out, eject the top packing, because the top packing is an open type with special tool, so it is very convenient to change at the scene
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is the utility model structural representation sectional view.
With reference to the accompanying drawings, each element numbers is respectively 1 among the figure, 10,15 pressure caps, 2,30 packing trim rings, 3 stuffing-boxes, 4,9, the 12O RunddichtringO, 5 dust rings, 6 stop screws, 7 lock-screws, 8 sealed pressing sleeves, the 11 bead seats of honour, 13,20 ring washers, 14 spherulas, the 16 big ball seats of honour, 17 big spheroids, 18 nameplates, 21 clip heads, 22,25 screws, the following ring washer of 23 big balls, following of 24 big balls, the following ring washer of 26 beads, following of 27 beads, following of 28 packings, 29,31 Polish rod packings, with reference to accompanying drawing, spherula 14 is positioned at big spheroid 17 tops, and the axle center is same, and both can pass the bar shape structure of polished rod for hollow, big spheroid 17 is to be installed in following 24 in big ball in the clip head 21 and to be contained in the pressure cap 15 interior big ball seats of honour 16 to be clamped in wherein, 21 on pressure cap 15 and clip head are with being threaded, and in assembling process, 1/4 circle again reverses behind the thread up, big spheroid 17 can freely be rotated, then with interior hexagonal backing-up screw 22 lockings; Spherula 14 is to be clamped in wherein with the bead seat of honour 11 that is installed in pressure cap 10 by following 27 of the bead that is installed in the big spheroid 17, between pressure cap 10 and the big spheroid 17 then with being threaded, in assembling process, 1/4 circle again reverses behind the thread up, the bead physical efficiency is freely rotated, and with 25 lockings of interior hexagonal backing-up screw, polished rod bottom packing 29 is contained in the spherula 14, polished rod top packing 31 is contained in movable stuffing-box 3 interior movable stuffing-boxes and then is contained in the sealed pressing sleeve 8, pressure cap 1 is threaded with sealed pressing sleeve 8 usefulness, and polished rod top packing 31 compressed by pressure cap 1, in order to prevent to leak, the sealing of big spheroid 17 reaches with " O " RunddichtringO 19 that is installed on " O " type seal groove interior 20 in the clip head 21; In the big spheroid 17 " O " type seal groove circles 12,13 seal and spherula is by being installed on; Movable stuffing-box 3 is housed in sealed pressing sleeve 8,, when normally pumping operation, organizes 31 pairs of oil pumping polish rods of packing thus and seal at the interior polished rod top packing 31 that also is equipped with; Polished rod bottom packing 29 in spherula 14, it is that just the tight screw 7 of releasable lock screws off sealed pressing sleeve 8 when polished rod top packing 31 need carry out the scene replacing, so just, compress polished rod bottom packing 29, leak to prevent that OIH from pressing, can dismantle pressure cap 1 this moment, extracts movable stuffing-box 3 out, ejecting top packing 2 with special tool gets final product, because top packing 31 is open types, so on-the-spot replacing is very convenient
This shows, because the utility model adopts two spherical structures, polished rod can be moved on three-dimensional when work, overcome pumping unit horsehead and well head decentraction and cause between polished rod and packing producing the deficiency of serious eccentric wear, simultaneously owing to adopt polished rod stuffing box and polished rod sealer two-seater function and adopt movable stuffing-box 3 to make on-the-spot replacing packing quick, convenient.
Claims (8)
1. two ball sealers of the pumpingh well polished rod of forming by polished rod stuffing box and polished rod sealer, it is characterized in that adopting two spherical structures, big spheroid 17 is to be clamped in wherein by the big ball seat of honour 16 that is installed in following 24 in big ball in the clip head 21 and be contained in the pressure cap 15, spherula 14 is to be clamped in wherein by the bead seats of honour 11 that are installed in following 27 of bead in the big spheroid 17 and adorned in the pressure cap 10, spherula 14 is positioned at big spheroid 17 tops, and same axle center, both can pass the bar shape structure of polished rod for hollow, Polish rod packing is divided into two parts up and down, bottom packing 29 is contained in the spherula, and polished rod top packing 31 is contained in the movable stuffing-box 3, movable stuffing-box 3 is contained in the sealed pressing sleeve 8, and polished rod top packing 31 is compressed by pressure cap 1, on sealed pressing sleeve 8 spherulas 14 joint faces screw thread and stop screw 6 is arranged, lock-screw 7
2. the two ball sealers of pumpingh well polished rod according to claim 1 is characterized in that on pressure cap 15 and clip head 21 joint faces screw thread being arranged,
3. according to the two ball sealers of claim 1 and 2 described pumpingh well polished rods, it is characterized in that 1/4 circle that reverses again behind pressure cap 15 and clip head 21 thread ups, and, big spheroid 17 can freely be rotated by screw 22 lockings,
4. the two ball sealers of pumpingh well polished rod according to claim 1 is characterized in that on the joint face screw thread being arranged between pressure cap 10 and the big spheroid 17,
5. according to the two ball sealers of claim 1 and 4 described pumpingh well polished rods, it is characterized in that 1/4 circle that reverses again behind pressure cap 10 and big spheroid 17 thread ups, and, spherula 14 can freely be rotated by screw 25 lockings,
6. the two ball sealers of pumpingh well polished rod according to claim 1 is characterized in that being used to installing in the clip head 21 of big spheroid 17 and are provided with " O " type seal groove 20 and " O " RunddichtringO 19,
7. the two ball sealers of pumpingh well polished rod according to claim 1 is characterized in that being used to installing in big spheroid 17 positions of spherula 14 and are provided with " O " type seal groove 12 and sealing ring 13,
8. the two ball sealers of pumpingh well polished rod according to claim 1 is characterized in that top packing 31 is open types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234925 CN2305483Y (en) | 1997-06-27 | 1997-06-27 | Polish rod double ball sealing device for pumping well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234925 CN2305483Y (en) | 1997-06-27 | 1997-06-27 | Polish rod double ball sealing device for pumping well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2305483Y true CN2305483Y (en) | 1999-01-27 |
Family
ID=33946163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97234925 Expired - Fee Related CN2305483Y (en) | 1997-06-27 | 1997-06-27 | Polish rod double ball sealing device for pumping well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2305483Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101273227B (en) * | 2005-07-27 | 2010-12-29 | 标致·雪铁龙汽车公司 | Assembly to be mounted under a fixed support such as a motor vehicle body shell floor, and method for using same |
| CN106838452A (en) * | 2017-02-27 | 2017-06-13 | 苏州市鑫渭机电修造有限公司 | A kind of detachable-type sealed part |
| CN109630057A (en) * | 2018-12-18 | 2019-04-16 | 克拉玛依胜利高原机械有限公司 | Swing type eccentric abrasion prevention wellhead sealing device |
-
1997
- 1997-06-27 CN CN 97234925 patent/CN2305483Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101273227B (en) * | 2005-07-27 | 2010-12-29 | 标致·雪铁龙汽车公司 | Assembly to be mounted under a fixed support such as a motor vehicle body shell floor, and method for using same |
| CN106838452A (en) * | 2017-02-27 | 2017-06-13 | 苏州市鑫渭机电修造有限公司 | A kind of detachable-type sealed part |
| CN109630057A (en) * | 2018-12-18 | 2019-04-16 | 克拉玛依胜利高原机械有限公司 | Swing type eccentric abrasion prevention wellhead 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 |