CN202065159U - Underlying sealing directly driven power head - Google Patents
Underlying sealing directly driven power head Download PDFInfo
- Publication number
- CN202065159U CN202065159U CN2011201883371U CN201120188337U CN202065159U CN 202065159 U CN202065159 U CN 202065159U CN 2011201883371 U CN2011201883371 U CN 2011201883371U CN 201120188337 U CN201120188337 U CN 201120188337U CN 202065159 U CN202065159 U CN 202065159U
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- China
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- sealing
- directly driven
- power head
- central shaft
- underlying
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Abstract
The utility model relates to an underlying sealing directly driven power head. The problems that a directly driven motor has a high cost because an underlying mechanical sealing device of a traditional directly driven motor power head is required to be frequently replaced, and the sealing device is difficult to replace are mainly solved. The underlying sealing directly driven power head comprises a central shaft and a driving sleeve, wherein the central shaft is positioned in a motor main shaft; the driving sleeve is connected with a shut-in well assembly; a sealing sleeve is sleeved on the outer wall of the upper section of the driving sleeve; and the upper end of the driving sleeve is fixed in a step hole at the lower end of the central shaft. Due to the change of a sealing material and the position of the underlying sealing directly driven power head, the service life of the sealing device of the underlying sealing directly driven power head is prolonged and the sealing device is very convenient to replace. Therefore, the cost of the directly driven motor is reduced.
Description
Technical field
The utility model relates in a kind of oil recovery production, the sealing configuration of used direct-drive motor driving head on screw bolt well, and driving head is directly driven in a kind of specifically underneath type sealing.
Background technique
Screw bolt well recovers the oil, owing to adopt direct driving motor directly to drive the screw pump of down-hole, therefore the power transmission process in the middle of having reduced has outstanding energy-saving effect and easy and simple to handle, and the oil recovery that generally is used for the oil field is produced.Yet, the sealing configuration of existing direct-drive motor driving head generally adopts up-set type mechanical seal, crude oil be transported to from about more than 1,000 meters down-hole extraction direct-drive motor driving head mechanical seal section during, the mechanical seal section of motor driving head is in no medium state, mechanical seal device is scaling loss under this state very easily, cause crude oil leakage at the driving head place, and in order to address the leakage concern, need just change the one-time mechanical sealing configuration average half a year, directly increased the cost of direct driving motor; And the up-set type mechanical seal structure is in narrow and small Seal cage, and replacing and debugging require specialization and supplementary equipment, and adjustment amount needs certain experience, brings certain degree of difficulty for the replacing sealing configuration.
Summary of the invention
In order to prolong the working life of direct-drive motor driving head sealing configuration, reduce production costs, reduce the operation easier when changing seal arrangement, the utility model provides a kind of underneath type sealing directly to drive driving head.The change of driving head because of sealing material and sealing station directly driven in the sealing of this underneath type, and the cost of whole motor is reduced, and changes this underneath type sealing configuration and do not need professional workforce and supplementary equipment, and be simple and convenient.
The technical solution of the utility model is: driving head is directly driven in a kind of underneath type sealing, comprise central shaft that is positioned at electric machine main shaft and the drive sleeve that is connected with the shut-in well assembly, wherein, the epimere outer wall suit stuffing box gland of described drive sleeve, the upper end of stuffing box gland is fixed in the lower end shoulder hole of central shaft.
In addition,, on the inwall of described stuffing box gland, be provided with some roads circular groove, teflon seal filler and exoskeletal oil sealing are housed respectively in the circular groove for filling sealed filler and self-lubricating oil seal in stuffing box gland.
The utlity model has following beneficial effect: owing to adopted above-mentioned technological scheme, change existing up-set type mechanical seal structure into the underneath type sealing configuration, and teflon seal filler and exoskeletal oil sealing are housed respectively in the inwall circular groove of stuffing box gland, the teflon seal filler has to be set upright and the effect of antidetonation drive sleeve, and exoskeletal oil sealing has self-lubricating function; Adopt the seal combination of this unlike material, need not add sealing medium constantly, both satisfied heat-resisting demand, also satisfied wear-resisting requirement, change because of sealing material and sealing station, the seal life of direct-drive motor driving head is prolonged, and change very convenient, thereby reduce the direct-drive motor cost.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the enlarged diagram of A among Fig. 1.
1-blowout preventer assembly among the figure, 2-drive sleeve, 3-stuffing box gland, the 4-outside framework oil seal, 5-self-aligning thrust roller bearing, 6-support, the 7-electric machine main shaft, 8-direct driving motor, 9-central shaft, 10-static seal base, the 11-static seal fills up on the 12-static seal, the 13-gland nut, 14-adjusts pad, and 15-is fixing bolt radially, the 16-circular groove.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By Figure 1 and Figure 2, this underneath type sealing is directly driven driving head and is comprised blowout preventer assembly 1, drive sleeve 2, stuffing box gland 3, outside framework oil seal 4, self-aligning thrust roller bearing 5, support 6, electric machine main shaft 7, direct driving motor 8, central shaft 9, static seal base 10, static seal 11, fill up 12 on the static seal, gland nut 13, adjust pad 14 and reach radially fixing bolt 15, wherein, jaw clutch formula Placement is adopted on the top of the upper end of described electric machine main shaft 7 and central shaft 9, is equipped with static seal base 10 successively in the shoulder hole on central shaft 9 tops, fill up 12 on static seal 11 and the static seal, on the static seal pad 12 upper-end surface by the gland nut 13 that is connected with central shaft 9 inner hole threads with static seal base 10, pad 12 compresses on static seal 11 and the static seal, fixed adjusting pad sheet 14 on the gland nut 13, square clamp is fixed on the top of central shaft 9.The shaft shoulder place, lower end of electric machine main shaft 7 is the interior ring of self-aligning thrust roller bearing 5 fixedly, the outer shroud of self-aligning thrust roller bearing 5 is fixed on the inwall of support 6, support 6 is by on the support that is bolted to blowout preventer assembly 1, the little hole wall and 7 of the electric machine main shafts of support 6 are equipped with outside framework oil seal 4 simultaneously, as shown in Figure 1.
The improvements that driving head is directly driven in this underneath type sealing are: screw thread fixed conveyor cover 2 on the described blowout preventer assembly 1, the epimere outer wall suit stuffing box gland 3 of described drive sleeve 2, stuffing box gland 3 is fixed in the lower end shoulder hole of central shaft 9, as shown in Figure 2 by fixing bolt 15 radially again.
For filling sealed filler and self-lubricating oil seal in stuffing box gland, on the inwall of described stuffing box gland 3, be provided with the circular groove 16 of some roads in order to filling sealed filler and self-lubricating oil seal, teflon seal filler and exoskeletal oil sealing are housed respectively in the circular groove 16, in the present embodiment, circular groove 16 is 4 roads, in the twice circular groove 16 the teflon seal filler is housed up and down, in the middle twice circular groove 16 exoskeletal oil sealing is housed, and the stuffing box packing material can be according to the actual demand adjustment at scene in the quantity of the interior circular groove 16 on the stuffing box gland 3 and the groove.The teflon seal filler has to be set upright and the effect of antidetonation drive sleeve, and exoskeletal oil sealing has self-lubricating function; Teflon seal filler and exoskeletal oil sealing make up, and adopt the seal combination of this unlike material, need not add sealing medium constantly, have both satisfied heat-resisting demand, have also satisfied wear-resisting requirement.
Driving head is directly driven in this underneath type sealing, rotates when direct driving motor 8 rotations drive electric machine main shaft 7, and electric machine main shaft 7 drives central shafts 9 rotations, and central shaft 9 drives the square clamp rotation that is fixed on central shaft 9 tops, and the rotation of square clamp drive sucker rod realizes recovering the oil.When central shaft 9 drives stuffing box glands 3 and rotates by fixing bolt radially 15, stuffing box gland 3 and drive sleeve 2 produce relative movement, because multiple tracks teflon seal filler and exoskeletal oil sealing are arranged in stuffing box gland 3, the teflon seal filler has to be set upright and the effect of antidetonation drive sleeve 2, exoskeletal oil sealing has self-lubricating function, this seal combination, need not add sealing medium constantly, thereby realize the selflubricating sealing, both satisfied heat-resisting demand, also satisfied wear-resisting requirement, change because of sealing material and sealing station, the seal life of direct-drive motor driving head is prolonged, and change very convenient, thereby reduce the direct-drive motor cost.
Claims (2)
1. driving head is directly driven in a underneath type sealing, comprise central shaft (9) that is positioned at electric machine main shaft (7) and the drive sleeve (2) that is connected with shut-in well assembly (1), it is characterized in that: the epimere outer wall suit stuffing box gland (3) of described drive sleeve (2), the upper end of stuffing box gland (3) is fixed in the lower end shoulder hole of central shaft (9).
2. driving head is directly driven in underneath type sealing according to claim 1, it is characterized in that: the inwall of described stuffing box gland (3) is provided with the circular groove (16) of some roads in order to filling sealed filler, and teflon seal filler and exoskeletal oil sealing are housed respectively in the circular groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201883371U CN202065159U (en) | 2011-06-07 | 2011-06-07 | Underlying sealing directly driven power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201883371U CN202065159U (en) | 2011-06-07 | 2011-06-07 | Underlying sealing directly driven power head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065159U true CN202065159U (en) | 2011-12-07 |
Family
ID=45059024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201883371U Expired - Lifetime CN202065159U (en) | 2011-06-07 | 2011-06-07 | Underlying sealing directly driven power head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889062A (en) * | 2016-05-10 | 2016-08-24 | 辽宁新华仪器有限公司 | Screw pump transmission device |
-
2011
- 2011-06-07 CN CN2011201883371U patent/CN202065159U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889062A (en) * | 2016-05-10 | 2016-08-24 | 辽宁新华仪器有限公司 | Screw pump transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170622 Address after: 163458 Heilongjiang Province, Daqing City Ranghulu District Northern Auto Parts City No. 30 building A Patentee after: Heng Heng Petroleum Equipment Co., Ltd. Address before: Ranghulu District Park District 163458 Heilongjiang city of Daqing province No. 28 Building 5 unit 602 room Patentee before: Yang Shuang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |