CN2229550Y - Bottomhole reducer for oil well - Google Patents
Bottomhole reducer for oil well Download PDFInfo
- Publication number
- CN2229550Y CN2229550Y CN 95221914 CN95221914U CN2229550Y CN 2229550 Y CN2229550 Y CN 2229550Y CN 95221914 CN95221914 CN 95221914 CN 95221914 U CN95221914 U CN 95221914U CN 2229550 Y CN2229550 Y CN 2229550Y
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- CN
- China
- Prior art keywords
- input shaft
- bearing
- output shaft
- oil
- retarder
- 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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Abstract
The utility model relates to a vertical type speed reducer at the bottom of an oil well. A gear speed reduction mechanism is arranged on the middle part of a barrel shape shell body whose diameter is less than of the diameter of the bushing of an oil well, and an input shaft and an output shaft which are connected with the gear speed reduction mechanism are respectively supported by bearings. The gear speed reduction mechanism and the output shaft are also provided with thrust bearings. A pressure adjustment mechanism is sheathed on the input shaft which rotates at a high speed. The telescopic film of the pressure adjustment mechanism is deformed according to the temperature of lubricating oil. A base with an installation hole is arranged at the bottom of the barrel shape shell body. The protective ring of an end cover is provided with an installation hole. Mechanical sealing devices are respectively arranged between the input shaft and the output shaft are respectively, and the base and the end cover. The vertical type speed reducer at the bottom of an oil well is installed in a submersible oil electrical pump device for exploiting thick oil, and a submersible oil motor and a screw pump realize non-rod connection. A phenomenon that the transmission long shaft of the existing power thick oil exploitation device above a well is broken is thoroughly solved, and pump efficiency is fully exerted.
Description
The utility model belongs to the mechanical reduction transmission device, particularly relates to the vertical mechanical retarder of a kind of oil well down-hole.
Heavy crude producing generally makes the pump efficiency height, is suitable for the wide low speed screw pump of range of viscosities at present, its power unit comprises that motor, retarder etc. all are located at ground, rotating speed and moment of torsion are transported to the screw pump of down-hole by transmission long axis, usually the extension well depth of screw pump reaches more than the km, therefore the power loss in the major axis transmission process is bigger, influenced the performance utilization of screw pump pump efficiency, in addition, the phenomenon that twists off major axis in the operation process happens occasionally.
The purpose of this utility model provides the vertical mechanical retarder that use a kind of suitable down-hole, realizes that " the no bar " of oil-submersible motor and screw pump is connected, and benefiting the performance of pump efficiency, and fundamentally stops to twist off the phenomenon of major axis.
Above-mentioned purpose obtains by the following technical programs:
Be provided with by bearing (15) in the bottom of diameter less than the tubular reducer shell (2) of oil well casing (36), the input shaft (24) of bearing (19) supporting, suit on the input shaft between the two bearings " worker " font fixed base (16), its shoulder is provided with by the fastening pressure of clip (18) and adjusts Flexible film (17), the planetary pinion of fixedlying connected with input shaft (10) that is located at the reduction gear at barrel-type casing middle part crouches and is contained in by last thrust (12), on the thrust bearing that following thrust (14) and slide plate (13) constitute, the top of barrel-type casing be provided with fixedly connected with reduction gear machinery output block by bearing (5), the output shaft (4) of bearing (9) supporting, be equipped with between the two bearings by last thrust (6), the thrust bearing that following thrust (8) and slide plate (7) constitute, slide plate (7) is connected with the output axle key, the bottom of barrel-type casing is provided with the pedestal (21) that is threaded with housing, between input shaft (24) and the pedestal (21) mechanical sealing element (20) is housed, base bottom along be provided with power unit join by the dress hole (23), the upper end-hole of barrel-type casing is provided with the end cap (26) of the band guard ring (1) that is threaded with it, the guard ring port is provided with the internal thread that is connected with screw pump (33) by dress hole (28), between output shaft (4) and the end cap (26) mechanical sealing element (3) is housed;
Bearing (15) is a single-row radial ball bearing, in pairs by dress;
Bearing (9) is tapered roller bearing entad, in pairs by dress;
The bearing support of bearing (5), (9), (15), (19) is threaded with barrel-type casing (2);
Mechanical sealing element (20), (3) are pump built-in type single end face list spring balancing type Sealings;
The axially outer end of input shaft (24) and output shaft (4) is provided with profile of tooth connecting groove (22), (27).
With drawings and Examples in detail the technical program is described in detail below:
Accompanying drawing 1 the utility model structural principle schematic representation
2 retarder user modes of accompanying drawing position view
Drawing explanation: guard ring (1), housing (2), Sealing (3), output shaft (4); bearing (5), last thrust (6), slide plate (7); following thrust (8), bearing (9), planet wheel (10); internal gear (11), last thrust (12), slide plate (13); following thrust (14), bearing (15), fixed base (16); Flexible film (17), clip (18), bearing (19); Sealing (20), pedestal (21), profile of tooth connecting groove (22); attachment hole (23), input shaft (24), air chamber (25); end cap (26), profile of tooth connecting groove (27), internal thread attachment hole (28); oil pipe (29), strain relief clamp (30), bolt (31); cable (32), screw pump (33), viscous crude (34); motor protecter (35), oil well casing (36), oil-submersible motor (37).
Embodiment as shown in Figure 1, length overall 1600mm, barrel-type casing (2) diameter 141mm, be suitable for 7 inches middle use of oil well casing (36), this retarder adopts planetary reducer, its gear mechanism is located at the housing middle part, velocity ratio is 13: 1, output shaft (4) rotating speed is 280 rev/mins, it is the optimum speed of screw pump, input shaft (24) is supported by the single-row centripetal cylinder ball bearing (15) and the common single-row centripetal short cylindrical rolling bearing (19) of paired use, make input shaft transmit moment of torsion reliably, by last thrust (12), lower tooth pushes away the thrust bearing of (14) and slide plate (13) formation, play up and down in the time of can effectively preventing reduction gears mechanism work, last thrust (12) is fixed on the internal tooth wheel seat (11), following thrust (14) is fixed on the bearing support of bearing (15), by last thrust (6), output shaft (4) thrust bearing that following thrust (8) and slide plate (7) constitute and the entad tapered roller bearing (9) that uses in pairs match, make output shaft (4) can bear bigger axial force, last thrust (6) and following thrust (8) are fixed with the adjacent shaft bearing respectively, this retarder adopts the oil immersed type lubricating system, Sealing (3) between end cap (1) and the output shaft (4), Sealing (20) between pedestal (21) and the input shaft (24) all adopts pump with adorning single end face list spring balancing type standard seal part in 103 types, its sealing effect is reliable, can effectively adjust the pressure that the lubricant oil expanded by heating is produced by the pressure adjustment Flexible film (17) that oil resistant rubber is made, protrude to air chamber (25) behind the Flexible film pressurized, the Volume Changes that can offset the lubricant oil expansion makes oil pressure stable, this retarder oil-immersed type lubricating system helps the radiating and cooling of the heat that produces in each parts operation process, along with flowing of lubricant oil conducts to viscous crude in the outer oil well casing (36) of housing with heat by barrel-type casing.Fig. 2 shows the thickened oil recovery device that this retarder and oil-submersible motor (37), motor protecter (35), screw pump (33) are formed; as seen oil-submersible motor of this device and motor protecter are connected for " no bar " with screw pump by retarder; avoided the idle waste in the motor power transmission course; therefore the utlity model has and do not waste power; the pump efficiency performance has fully fundamentally stopped to twist off the remarkable advantage of major axis phenomenon.
Claims (5)
1. oil well down-hole retarder, by housing, end cap, input shaft, output shaft, planetary reduction gear, Sealing is formed, it is characterized in that: diameter be provided with less than the bottom of the tubular reducer shell of oil well casing by on, the input shaft of lower bearing supporting, suit on the input shaft between the two bearings " worker " font fixed base, its shoulder is provided with by the fastening pressure of clip and adjusts Flexible film, the planetary pinion of fixedlying connected with input shaft that is located at the reduction gear at barrel-type casing middle part crouches and is contained on the thrust bearing, the top of barrel-type casing be provided with the reduction gear output block fix by last, the output shaft of lower bearing supporting, the slide plate of the thrust bearing between the two bearings is connected with the output axle key, the barrel-type casing bottom is provided with the pedestal that is threaded, between input shaft and the pedestal mechanical sealing element is housed, base bottom along be provided with power unit join by the dress hole, end cap is provided with guard ring, its port is provided with the internal thread that is connected with screw pump by the dress hole, between end cap and the output shaft mechanical sealing element is housed.
2. retarder as claimed in claim 1 is characterized in that: the upper bearing (metal) that supports input shaft is a single-row radial ball bearing, in pairs by dress.
3. retarder as claimed in claim 1 is characterized in that: the lower bearing that supports output shaft is tapered roller bearing entad, in pairs by adorning.
4. retarder as claimed in claim 1 is characterized in that: support each bearing of input shaft, output shaft, its bearing support is threaded with barrel-type casing.
5. retarder as claimed in claim 1 is characterized in that: mechanical sealing element is a pump built-in type single end face list spring balancing type Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95221914 CN2229550Y (en) | 1995-09-20 | 1995-09-20 | Bottomhole reducer for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95221914 CN2229550Y (en) | 1995-09-20 | 1995-09-20 | Bottomhole reducer for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2229550Y true CN2229550Y (en) | 1996-06-19 |
Family
ID=33869397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95221914 Expired - Fee Related CN2229550Y (en) | 1995-09-20 | 1995-09-20 | Bottomhole reducer for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2229550Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439753C (en) * | 2003-12-24 | 2008-12-03 | 斯伦贝谢(天津)采油机械有限公司 | Oil submerged pump special-purpose speed reducer and process for making same |
| CN100460709C (en) * | 2006-01-25 | 2009-02-11 | 西安斯富石化科技有限公司 | Speed reducer of submersible pump with centripetal axis |
| CN103244612A (en) * | 2013-05-14 | 2013-08-14 | 中国地质大学（北京） | Underground reducer with pressure self-balancing system |
| CN104633425A (en) * | 2015-02-11 | 2015-05-20 | 胜利油田德利实业有限责任公司 | Downhole mechanical speed reducer lubricating device |
| CN108953132A (en) * | 2018-08-07 | 2018-12-07 | 青岛理工大学 | Claw type spiral tooth centering device for coal bed gas well extraction pump |
| CN111075380A (en) * | 2018-10-19 | 2020-04-28 | 中国石油天然气股份有限公司 | Hydraulic anti-sticking device |
| CN112013096A (en) * | 2020-09-08 | 2020-12-01 | 雷亿尔精密机械科技(常州)有限公司 | High-speed long shaft intermediate support device |
| CN115538928A (en) * | 2022-10-20 | 2022-12-30 | 宜宾学院 | Torsion impactor of torque balance drilling tool |
-
1995
- 1995-09-20 CN CN 95221914 patent/CN2229550Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439753C (en) * | 2003-12-24 | 2008-12-03 | 斯伦贝谢(天津)采油机械有限公司 | Oil submerged pump special-purpose speed reducer and process for making same |
| CN100460709C (en) * | 2006-01-25 | 2009-02-11 | 西安斯富石化科技有限公司 | Speed reducer of submersible pump with centripetal axis |
| CN103244612A (en) * | 2013-05-14 | 2013-08-14 | 中国地质大学（北京） | Underground reducer with pressure self-balancing system |
| CN103244612B (en) * | 2013-05-14 | 2016-03-09 | 中国地质大学（北京） | There is the down-hole decelerator of pressure self-balancing system |
| CN104633425A (en) * | 2015-02-11 | 2015-05-20 | 胜利油田德利实业有限责任公司 | Downhole mechanical speed reducer lubricating device |
| CN108953132A (en) * | 2018-08-07 | 2018-12-07 | 青岛理工大学 | Claw type spiral tooth centering device for coal bed gas well extraction pump |
| CN111075380A (en) * | 2018-10-19 | 2020-04-28 | 中国石油天然气股份有限公司 | Hydraulic anti-sticking device |
| CN112013096A (en) * | 2020-09-08 | 2020-12-01 | 雷亿尔精密机械科技(常州)有限公司 | High-speed long shaft intermediate support device |
| CN115538928A (en) * | 2022-10-20 | 2022-12-30 | 宜宾学院 | Torsion impactor of torque balance drilling tool |
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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 |