CN201610859U - Sealing device for oil-immersed diving pump shaft - Google Patents
Sealing device for oil-immersed diving pump shaft Download PDFInfo
- Publication number
- CN201610859U CN201610859U CN2010201129483U CN201020112948U CN201610859U CN 201610859 U CN201610859 U CN 201610859U CN 2010201129483 U CN2010201129483 U CN 2010201129483U CN 201020112948 U CN201020112948 U CN 201020112948U CN 201610859 U CN201610859 U CN 201610859U
- Authority
- CN
- China
- Prior art keywords
- seal
- oil
- end cap
- grease chamber
- mechanical seal
- 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
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Mechanical Sealing (AREA)
Abstract
The utility model relates to a sealing deice, in particular to a sealing device for an oil-immersed diving pump shaft. The device comprises a motor shell, an upper end cover and an oil chamber cover, wherein the upper end cover is connected with the motor shell; the oil chamber cover is connected with the upper end cover; a motor rotor shaft is arranged on the upper end cover through a bearing, and is penetrated from a top end of the oil chamber cover; the motor rotor shaft is provided with a skeleton oil seal, a double mechanical seal and a single mechanical seal, wherein the skeleton oil seal is located at top of the oil chamber cover; the double mechanical seal is located between the oil chamber cover and the upper end cover; the single mechanical seal is located at bottom of the upper end cover; the upper seal in the double mechanical seal is a hard-hard friction pair that is silicon nitride to tungsten carbide; the lower seal is a hard-soft friction pair that is silicon nitride to graphite; the single mechanical seal is a hard-soft friction pair that is silicon nitride to graphite. The device commonly blocks all possible paths of leaking liquid by three seals, thereby realizing reliable seal of the electrical pumps.
Description
Technical field
The utility model is a kind of seal arrangement, particularly a kind of oil-immersed diving pump axle seal arrangement.
Background technique
Electric pump is made up of water pump, seal arrangement and motor three parts, exists pressure reduction between the liquid in the pump in outer atmosphere of liquid and pump and the grease chamber, and liquid to external leakage, needs to be provided with seal arrangement (axle seals) along the gap between axle and the pump housing, grease chamber for this reason.Electric pump, the particularly working life of the reliability direct relation electric pump of Submerged Motor Pumps sealing.Existing oil immersion pump sealing apparatus generally all is to use two seals owing to be subjected to the restriction of seal chamber structure in the city at present, promptly adopts the combination of double mechanical seal and outside framework oil seal; Outside framework oil seal is the sealing of first road, and impurity enters the grease chamber in the anti-sealing; Double mechanical seal is the sealing of second road, prevents that liquid leaks into motor in the grease chamber; But existing this seal arrangement is as long as mechanical seal damages in the grease chamber, and the liquid in the grease chamber (oil water mixture) will enter motor, causes motor to burn out.
Summary of the invention
The purpose of this utility model is in order to overcome the defective that existing seal arrangement causes motor to burn out owing to bad seals, invent a kind of the change under the existing electric pump boundary dimension situation, in motor cavity, increase by one single mechanical end face seal and make sealability oil-immersed diving pump axle seal arrangement more reliably.
The purpose of this utility model realizes as follows: described oil-immersed diving pump axle seal arrangement, comprise motor housing, upper end cap and You Shigai, upper end cap is connected with motor housing, grease chamber's lid is connected with upper end cap, machine shaft is located on the upper end cap by bearing, and the top of covering from the grease chamber passes, it is characterized in that: machine shaft is provided with outside framework oil seal, double mechanical seal and single mechanical end face seal, wherein outside framework oil seal is positioned at the top of grease chamber's lid, double mechanical seal is between grease chamber's lid and upper end cap, and single mechanical end face seal is positioned at the bottom of upper end cap.
Upper-end surface in the described double mechanical seal is sealed into firmly-the secondary pairing of hard friction, and promptly silicon nitride is to Tungsten carbite, and the lower end surface is sealed into firmly-soft friction pair pairing, and promptly silicon carbide is to graphite.
Described single mechanical end face seal is hard-soft friction pair pairing, and promptly silicon carbide is to graphite.
Good effect of the present utility model is as follows: whole sealing configuration of the present utility model comprises three seals, has formed a perfect sealing system jointly, common shutoff the whole of leak of liquid may approach, realize the reliable sealing of electric pump.Sealing configuration form uniqueness of the present utility model, made full use of the electric pump space, rationally reliable, be specially adapted to oil immersion type electric underwater pump, price is low, and is easy to assembly, according to user's use condition statistics, electric pump has improved economic benefit because of bad seals motor water inlet coil burnout phenomenon reduces 50%.
Description of drawings
Fig. 1 is the utility model structural representation
Among the figure: 1 motor housing, 2 upper end caps, 3 You Shigai
4 machine shafts, 5 bearings, 6 outside framework oil seals
8 single mechanical end face seals of 7 double mechanical seals
Embodiment
As shown in Figure 1, described oil-immersed diving pump axle seal arrangement, comprise motor housing 1, upper end cap 2 and grease chamber's lid 3, upper end cap 2 is connected with motor housing 1, grease chamber lid 3 is connected with upper end cap 2, machine shaft 4 is located on the upper end cap 2 by bearing 5, and pass from the top of grease chamber lid 3, it is characterized in that: machine shaft 4 is provided with outside framework oil seal 6, double mechanical seal 7 and single mechanical end face seal 8, wherein outside framework oil seal 6 is positioned at the top of grease chamber's lid 3, double mechanical seal 7 is between grease chamber's lid 3 and upper end cap 2, and single mechanical end face seal 8 is positioned at the bottom of upper end cap 2.
Upper-end surface in the described double mechanical seal 7 is sealed into firmly-the secondary pairing of hard friction, and promptly silicon nitride is to Tungsten carbite, and the lower end surface is sealed into firmly-soft friction pair pairing, and promptly silicon carbide is to graphite.
Described single mechanical end face seal 8 is hard-soft friction pair pairing, and promptly silicon carbide is to graphite.
Outside framework oil seal is the sealing of first road, and impurity enters in the grease chamber that the grease chamber is covered and upper end cap is surrounded in the mainly anti-sealing; Double mechanical seal is second road sealing, prevents that mainly extraneous liquid from entering liquid in grease chamber and the grease chamber and leaking in the motor housing; Single mechanical end face seal is a three seals, prevents that mainly liquid in the grease chamber from leaking in the motor housing; Whole three seal structures is formed a perfect sealing system, realizes the reliable sealing of electric pump.
Claims (3)
1. oil-immersed diving pump axle seal arrangement, comprise motor housing, upper end cap and You Shigai, upper end cap is connected with motor housing, grease chamber's lid is connected with upper end cap, machine shaft is located on the upper end cap by bearing, and the top of covering from the grease chamber passes, it is characterized in that: machine shaft is provided with outside framework oil seal, double mechanical seal and single mechanical end face seal, wherein outside framework oil seal is positioned at the top of grease chamber's lid, double mechanical seal is between grease chamber's lid and upper end cap, and single mechanical end face seal is positioned at the bottom of upper end cap.
2. oil-immersed diving pump axle seal arrangement according to claim 1, it is characterized in that: the upper-end surface in the described double mechanical seal is sealed into firmly-the secondary pairing of hard friction, be silicon nitride to Tungsten carbite, the lower end surface is sealed into firmly-soft friction pair pairing, promptly silicon carbide is to graphite.
3. oil-immersed diving pump axle seal arrangement according to claim 1 is characterized in that: described single mechanical end face seal is hard-soft friction pair pairing, and promptly silicon carbide is to graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201129483U CN201610859U (en) | 2010-02-08 | 2010-02-08 | Sealing device for oil-immersed diving pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201129483U CN201610859U (en) | 2010-02-08 | 2010-02-08 | Sealing device for oil-immersed diving pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610859U true CN201610859U (en) | 2010-10-20 |
Family
ID=42961492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201129483U Expired - Fee Related CN201610859U (en) | 2010-02-08 | 2010-02-08 | Sealing device for oil-immersed diving pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610859U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787380A (en) * | 2016-12-14 | 2017-05-31 | 衡阳市力源动力制造有限公司 | A kind of single-ended mechanical seal structure of motor |
| CN109989944A (en) * | 2019-04-30 | 2019-07-09 | 江苏金通灵流体机械科技股份有限公司 | A kind of zero leakage inlet guide vane arrangement |
| CN112398267A (en) * | 2020-12-04 | 2021-02-23 | 江苏苏美达五金工具有限公司 | Rare earth permanent magnet DC brushless motor |
-
2010
- 2010-02-08 CN CN2010201129483U patent/CN201610859U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787380A (en) * | 2016-12-14 | 2017-05-31 | 衡阳市力源动力制造有限公司 | A kind of single-ended mechanical seal structure of motor |
| CN109989944A (en) * | 2019-04-30 | 2019-07-09 | 江苏金通灵流体机械科技股份有限公司 | A kind of zero leakage inlet guide vane arrangement |
| CN112398267A (en) * | 2020-12-04 | 2021-02-23 | 江苏苏美达五金工具有限公司 | Rare earth permanent magnet DC brushless motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201610859U (en) | Sealing device for oil-immersed diving pump shaft | |
| CN101820194A (en) | Dynamic sealing device having cooling function for high-power and high-speed submerged motor | |
| CN202149058U (en) | Throttling circulation structure for submerged clear water pump | |
| CN210196046U (en) | High-temperature magnetic pump | |
| CN202468352U (en) | Oil-filled submersible electric pump | |
| CN203984137U (en) | Waterproof machine on a kind of immersible pump | |
| CN201616726U (en) | Dynamic sealing device of high-power high rotating-speed submersible motor with cooling function | |
| CN101493097B (en) | Principal axis sealing device for submersible pump | |
| CN107171478A (en) | A kind of mechanical seal structure of submersible motor | |
| CN202108771U (en) | Sealing device structure for sewage pump | |
| CN201568568U (en) | Sealing structure at pressure end of turbocharger | |
| CN204591772U (en) | The oil immersed type of water pump and immersion type double mechanical seal device | |
| CN202182057U (en) | Negative pressure type submersible pump mechanical sealing chamber | |
| CN201425037Y (en) | Leakage-preventing sealing device for submersible sewage pump | |
| CN203933227U (en) | Oil-filled type well submersible asynchronous motor | |
| CN206129685U (en) | Oiling formula fan shaft seal device | |
| CN215990429U (en) | Efficient sealed motor containing cooling liquid filling device | |
| CN210461091U (en) | Sealing device for submersible pump | |
| CN102562615B (en) | Oil charge type submersible pump | |
| CN204852340U (en) | Sealed increase resistance to compression type atomizer | |
| CN217107474U (en) | Rubber diaphragm decompression seal structure | |
| CN204372167U (en) | A kind of efficient shaft seal | |
| CN201679963U (en) | Split type all sealing oil baffle | |
| CN202612644U (en) | Oil seal ring of high-pressure plunger pump | |
| CN204226167U (en) | A kind of mechanical seal structure used on high pressure and deep well water pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: The city of Wenling City Industrial Zone, Daxi Zhen Shan Taizhou city in Zhejiang province 317500 Patentee after: DAFU PUMP INDUSTRY CO., LTD. Address before: 317500 Zhejiang City Industrial Zone, Daxi Shan City of Wenling Province Patentee before: Zhejiang Dafu Pump Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20150208 |
|
| EXPY | Termination of patent right or utility model |