CN202082101U - Lower sealing device directly driven by screw pump - Google Patents
Lower sealing device directly driven by screw pump Download PDFInfo
- Publication number
- CN202082101U CN202082101U CN2011201456992U CN201120145699U CN202082101U CN 202082101 U CN202082101 U CN 202082101U CN 2011201456992 U CN2011201456992 U CN 2011201456992U CN 201120145699 U CN201120145699 U CN 201120145699U CN 202082101 U CN202082101 U CN 202082101U
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- China
- Prior art keywords
- seal
- motor
- packing
- screw pump
- hollow
- 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
A lower sealing device directly driven by a screw pump comprises a motor, a hollow sealing shaft of the motor, a transmission coupling sleeve and a square clip. A hollow shaft of the motor is the hollow sealing shaft of the motor, and the lower part of the sealing shaft is provided with a packing sealing device consisting of an upper sealing packing and a lower sealing packing. The device has the characteristics of repair convenience, simple operation, low cost and the like, and eliminates the phenomenon that crude oil enters in the motor and burns the motor out.
Description
Technical field:
The utility model relates to a kind of mechanical encapsulation devices, the underlying seal arrangement that particularly a kind of screw pump directly drives.
Background technique:
Progressive cavity pump is a kind of oil well pump that develops application in recent years in the world rapidly, and it becomes a kind of necessary complement of oil production equipment.In recent years, screw pump directly drove oil production system energy-conservation and easy to operate approval that obtains the oil field with it.The screw pump of Shi Yonging directly drives oil production system and mostly is up-set type mechanical seal and seals crude oil in the market, its major defect is on-the-spot repair and replacement trouble, personnel is required height, crude oil is in case leakage just enters motor internal very soon, and the burn-down of electric motor phenomenon happens occasionally.
Summary of the invention:
The utility model is intended to overcome the underlying seal arrangement that the deficiencies in the prior art provide a kind of screw pump directly to drive, and this device is easy to maintenance, simple to operate, cost is low, long service life.
As above design, the technical solution of the utility model is: the underlying seal arrangement that a kind of screw pump directly drives, comprise motor, motor-hollow axle, transmission coupling band and Fang Ka, it is characterized in that: motor-hollow axle is a motor hollow seal axle, and the packing_seal device of being made up of upper and lower sealed packing is equipped with in its underpart.
" O " shape seal ring is housed between above-mentioned motor hollow seal axle and the transmission coupling band.
Be set with seal shaft in the above-mentioned motor hollow seal axle, form transmission one axon by " O " shape seal ring and joint bolt between them, upper and lower sealed packing is installed on the seal shaft by adjusting screw.
Alignment bearing is equipped with in above-mentioned lower seal packing below.
Pass through static seal rubber packing, static seal packing gland and spiral cover drive fit between above-mentioned transmission coupling band and the Fang Ka.
This device adopts packing and shaft sealing form to realize sealing former functional oil in motor lower portion, and the surface of its axis adopts spraying or hard chromium plating to handle the wear resistance that improves axle.Owing to directly drive and adopt underlying packing_seal crude oil to stop crude oil to enter motor internal and burn the motor phenomenon and take place.Characteristics such as that packing_seal has is easy to maintenance, simple to operate, cost is low.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the another kind of structural representation of the utility model.
Embodiment:
As shown in the figure this device mainly by side card 1, static seal packing gland 2, spiral cover 3, static seal rubber packing 4, coupling band 5, " O " shape seal ring 6,8,14, motor-hollow axle 7, seal shaft 9, attachment screw 10, go up packing and adjust bolt 11, go up that packing is adjusted nut 12, gone up packing 13, packing is adjusted screw 15, lower seal packing 16, alignment bearing 17 and shut-in well holder 18 and formed down.Realize the static seal function by " O " shape seal ring 6 between transmission coupling band and the motor-hollow axle.Motor-hollow axle 7 and seal shaft 9 are formed sealing transmission one axon (as shown in Figure 1) by " O " shape seal ring 8 and joint bolt 10.
Motor-hollow axle in this device also can be one motor hollow seal axle, and promptly motor-hollow axle and seal shaft are made of one (as shown in Figure 2).
When operation was installed, sucker rod (oil pumping polish rod) passed seal shaft 9 (or one motor-hollow axle 7) center hole, combined as a whole with motor-hollow axle 7 by side's card 1 and coupling band 5.Sealing realizes by static seal rubber packing 4 between polished rod or sucker rod and the transmission coupling band.Motor shaft is realized the oil recovery function by the moving sucker rod running of square cassette tape during motor rotation, drives seal shaft (one motor-hollow axle) and polished rod (sucker rod) during the motor shaft running and rotate cooperation together upward sealed packing 13 and lower seal packing 16 are realized the sealing of crude oil.
Claims (5)
1. the underlying seal arrangement that screw pump directly drives comprises motor, motor-hollow axle, transmission coupling band and Fang Ka, it is characterized in that: motor-hollow axle is a motor hollow seal axle, and the packing_seal device of being made up of upper and lower sealed packing is equipped with in its underpart.
2. the underlying seal arrangement that screw pump according to claim 1 directly drives is characterized in that: " O " shape seal ring is housed between above-mentioned motor hollow seal axle and the transmission coupling band.
3. the underlying seal arrangement that screw pump according to claim 1 directly drives, it is characterized in that: be set with seal shaft in the above-mentioned motor hollow seal axle, form transmission one axon by " O " shape seal ring and joint bolt between them, the upper-lower seal packing is installed on the seal shaft by adjusting screw.
4. the underlying seal arrangement that screw pump according to claim 1 directly drives is characterized in that: alignment bearing is equipped with in above-mentioned lower seal packing below.
5. the underlying seal arrangement that screw pump according to claim 1 directly drives is characterized in that: pass through static seal rubber packing, static seal packing gland and spiral cover drive fit between above-mentioned transmission coupling band and the Fang Ka.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201456992U CN202082101U (en) | 2011-05-10 | 2011-05-10 | Lower sealing device directly driven by screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201456992U CN202082101U (en) | 2011-05-10 | 2011-05-10 | Lower sealing device directly driven by screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082101U true CN202082101U (en) | 2011-12-21 |
Family
ID=45342731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201456992U Expired - Fee Related CN202082101U (en) | 2011-05-10 | 2011-05-10 | Lower sealing device directly driven by screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082101U (en) |
Cited By (2)
| 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 |
| CN106762622A (en) * | 2017-02-07 | 2017-05-31 | 大庆恒通瑞思科技有限公司 | A kind of screw pump direct-drive motor isolating seal device |
-
2011
- 2011-05-10 CN CN2011201456992U patent/CN202082101U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN106762622A (en) * | 2017-02-07 | 2017-05-31 | 大庆恒通瑞思科技有限公司 | A kind of screw pump direct-drive motor isolating seal device |
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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: 20111221 Termination date: 20120510 |