CN203670712U - Sealing device of gearbox for submersible pump - Google Patents
Sealing device of gearbox for submersible pump Download PDFInfo
- Publication number
- CN203670712U CN203670712U CN201320866542.8U CN201320866542U CN203670712U CN 203670712 U CN203670712 U CN 203670712U CN 201320866542 U CN201320866542 U CN 201320866542U CN 203670712 U CN203670712 U CN 203670712U
- Authority
- CN
- China
- Prior art keywords
- shaped oil
- oil sealing
- gearbox
- oil seals
- sealing device
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000009545 invasion Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 20
- 239000010721 machine oil Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
A sealing device of a gearbox for a submersible pump comprises a transmission shaft stretching out of a gearbox body, and the transmission shaft is sleeved with an end cover closely attached to the outer wall face of the gearbox body. The sealing device is characterized in that an outer seal and an inner seal which are closely attached to a rotary shaft are arranged on the inner ring of the end cover from the outer side to the outer wall of the gearbox body in sequence, the outer seal is at least composed of first U-shaped oil seals and first O-shaped oil seals, and the inner seal is at least composed of second U-shaped oil seals and second O-shaped oil seals. Preferably, the outer seal is composed of the two adjacent first U-shaped oil seals and the adjacent first O-shaped oil seals, and therefore the invasion of external muddy water can be prevented; the inner seal is composed of the second U-shaped oil seals and the second O-shaped oil seals in an adjacent mode, and used for preventing internal oil from being leaked outwards. The sealing device has the advantages that the structure is simple, use is convenient and reliable, the underwater gearbox is immersed in muddy water in the work process, the muddy water can be prevented from entering the gearbox, meanwhile, oil in the gearbox cannot be leaked outwards, and the sealing device can adapt to the work condition of the high rotating speed of the rotary shaft.
Description
Technical field
The seal arrangement that the utility model relates to a kind of submersible pump gear-box, belongs to mechanical sealing technology field.
Background technique
Existing seal arrangement is according to the difference that uses object, there is various structural type, have simply, also have complicated, but for the seal arrangement on submersible pump series products, because of seal request higher, substantially use the seal arrangement that structure is comparatively complicated, the cost of these seal arrangements is also high, and easily damages.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provide a kind of simple in structure, easy to use and reliable, gear-box is under water immersed in muddy water in the time of work, can prevent that muddy water from entering in gear-box, make the seal arrangement of the submersible pump gear-box that the oil in gear-box do not leak simultaneously.
The purpose of this utility model completes by following technical solution, it comprises a transmission shaft stretching out from gear case body, on this transmission shaft, be equipped with an end cap being close on cabinet exterior face, on the inner ring of described end cap, be disposed with and be close to the external sealed at least being formed by the first U-shaped oil sealing, an O shape oil sealing of rotatingshaft and the interior sealing at least being formed by the 2nd O shape oil sealing, the second U-shaped oil sealing from lateral cabinet exterior face.
Described external sealed is made up of the first U-shaped oil sealing of two adjacent layouts and an O shape oil sealing of adjacent layout, to stop the intrusion of outside muddy water; Described interior sealing is made up of the 2nd O shape oil sealing and the adjacent layout of the second U-shaped oil sealing, for stopping leaking of inner fluid.
The utlity model has simple in structurely, easy to use and reliable, make under water gear-box be immersed in muddy water in the time of work, can prevent that muddy water from entering in gear-box, make the oil in gear-box not leak simultaneously, can adapt to the features such as the high rotating speed operating mode of rotatingshaft.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: shown in Fig. 1, the seal arrangement of gear-box for submersible pump described in the utility model, it comprises a transmission shaft stretching out from gear case body 75, on this transmission shaft 5, be equipped with an end cap 6 being close in casing 7 outer wall, on the inner ring of described end cap 6, be disposed with and be close to the external sealed at least being formed by the first U-shaped oil sealing 1, an O shape oil sealing 2 of rotatingshaft and the interior sealing at least being formed by the 2nd O shape oil sealing 3, the second U-shaped oil sealing 4 from lateral cabinet exterior face.
The present invention is preferably: described external sealed is made up of the first U-shaped oil sealing 1 of two adjacent layouts and an O shape oil sealing 2 of another adjacent layout, to stop the intrusion of outside muddy water; Described interior sealing is made up of the 2nd O shape oil sealing 3 and the adjacent layout of the second U-shaped oil sealing 4, for stopping leaking of inner fluid.
In the technological scheme that the utility model is taked, stop two the U-shaped circles that have of outside muddy water intrusion, an O shape circle; Stop that have a U-shaped circle and an O shape that inner fluid leaks are enclosed; It can also adapt to the operating mode of higher rotation speed simultaneously.
In the time that rotatingshaft 5 rotates, when outside muddy water will enter along the surface of rotatingshaft, because having flexible rubber, makes U-shaped seal ring cutting edge, and rubber parts cutting edge is close to the surface of rotating shaft, and now, outside muddy water just enters not go.Simultaneously, while rotation due to rotatingshaft, inner machine oil also due to rubber parts cutting edge be close to rotating shaft surface and can not be out, therefore come sealing clay water and inner machine oil with this, final the present invention has adopted multiple U-shaped rubber oil seas and " O " shape oil sealing effectively, reaches the object of required sealing.
Claims (2)
1. the seal arrangement of a submersible pump use gear-box, it comprises a transmission shaft stretching out from gear case body, on this transmission shaft, be equipped with an end cap being close on cabinet exterior face, it is characterized in that on the inner ring of described end cap, be disposed with the interior sealing of being close to the external sealed at least being formed by the first U-shaped oil sealing (1), an O shape oil sealing (2) of rotatingshaft and at least being formed by the 2nd O shape oil sealing (3), the second U-shaped oil sealing (4) from lateral cabinet exterior face.
2. the seal arrangement of gear-box for submersible pump according to claim 1, is characterized in that described external sealed is made up of the first U-shaped oil sealing (1) of two adjacent layouts and an O shape oil sealing (2) of adjacent layout, to stop the intrusion of outside muddy water; Described interior sealing is made up of the 2nd O shape oil sealing (3) and the adjacent layout of the second U-shaped oil sealing (4), for stopping leaking of inner fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320866542.8U CN203670712U (en) | 2013-12-26 | 2013-12-26 | Sealing device of gearbox for submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320866542.8U CN203670712U (en) | 2013-12-26 | 2013-12-26 | Sealing device of gearbox for submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670712U true CN203670712U (en) | 2014-06-25 |
Family
ID=50967010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320866542.8U Expired - Lifetime CN203670712U (en) | 2013-12-26 | 2013-12-26 | Sealing device of gearbox for submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108603586A (en) * | 2016-02-12 | 2018-09-28 | Ｋｙｂ株式会社 | Speed changer and the driving device for having speed changer |
-
2013
- 2013-12-26 CN CN201320866542.8U patent/CN203670712U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108603586A (en) * | 2016-02-12 | 2018-09-28 | Ｋｙｂ株式会社 | Speed changer and the driving device for having speed changer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
|
| CX01 | Expiry of patent term |