CN205663616U - Double -end -surface mechanical seal - Google Patents
Double -end -surface mechanical seal Download PDFInfo
- Publication number
- CN205663616U CN205663616U CN201520848132.XU CN201520848132U CN205663616U CN 205663616 U CN205663616 U CN 205663616U CN 201520848132 U CN201520848132 U CN 201520848132U CN 205663616 U CN205663616 U CN 205663616U
- Authority
- CN
- China
- Prior art keywords
- mechanical seal
- stationary seat
- double
- oil filler
- pedestal
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a double -end -surface mechanical seal, including the double -end -surface mechanical seal who locates the screw pump both ends, double -end -surface mechanical seal is including locating the pedestal on the cavity, be equipped with the pivot hole in the pedestal, in the pivot in proper order the cover have that to locate the pivot behind inboard stationary seat, inboard quiet ring, rotating ring, the quiet ring in the outside and the outside stationary seat downthehole, wherein, the both ends in pivot hole are located respectively to inboard stationary seat and outside stationary seat, the top of pedestal is equipped with the oil filler point, and its bottom is equipped with the oil drain hole, the utility model discloses simple structure, mechanical seal keeps apart with the pump chamber, adds lubricated medium from the oil filler point for mechanical seal independent lubrication, the medium that no longer relies on the screw pump and transport comes lubricatedly, makes the pump body to dally, has reduced mechanical seal's wearing and tearing widely.
Description
Technical field
This utility model relates to screw pump field, is specifically related to a kind of double mechanical seal.
Background technology
Pump is conveying liquid or the machinery making fluid pressurization.Mechanical energy or other external energies of prime mover are sent to by it
Liquid, makes liquid energy increase.Pump is mainly used to carry the liquid such as water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal,
Also liquid, gas mixture and the liquid containing suspended solids can be carried.Screw pump is volume type rotor pump, it be dependent on by screw rod and
The volume change of the annular seal space that lining is formed sucks and drain.Screw pump by screw rod number be divided into single-screw (single screw) pump, double,
Three and five-screw pump.The feature of screw pump is flow trim, pressure fluctuation is little, have that suction capacity, noise are low, efficiency is high, the life-span
Long, reliable operation；And its prominent advantage is formed without eddy current, insensitive to the viscosity of medium when being pumped (conveying) medium, height can be carried
Viscous media.In current screw pump, mechanical seal connects with pump chamber, depends on carried medium and moistens mechanical seal
Sliding, easily mechanical seal is burnt out when the pump housing dallies.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of double mechanical seal, solves prior art machinery
Sealing depends on carried medium and is lubricated mechanical seal, and easily mechanical seal burnt out when the pump housing dallies asks
Topic.
This utility model is achieved through the following technical solutions:
A kind of double mechanical seal, including being located at the double mechanical seal at screw pump two ends, described double mechanical
Seal and include the pedestal be located on cavity, in described pedestal, be provided with shaft hole, rotating shaft is cased with inner side stationary seat, inner side successively quiet
Being located in shaft hole after ring, rotating ring, outside stationary ring and outside stationary seat, wherein, inner side stationary seat is with outside stationary seat respectively
Being located at the two ends of shaft hole, the top of described pedestal is provided with oil filler point, is provided with outage bottom it.
The further improvement project of this utility model is, the outside diameter of described rotating ring is less than the diameter of shaft hole, described dynamic
The left surface of the periphery of ring, the medial surface of shaft hole, the right flank of inner side stationary seat and outside stationary seat forms a profit
Sliding chamber.
This utility model further improvement project is that described lubricating cavity is connected with oil filler point and outage.
This utility model further improvement project is, the top of described oil filler point is provided with oil filler plug, described outage
Bottom is provided with fuel drain plug.
This utility model compared with prior art, has the advantage that
1, this utility model simple in construction, mechanical seal is isolated with pump chamber, adds lubricant medium from oil filler point so that machinery
Seal independent lubricating, eliminate the reliance on the medium that screw pump transported and lubricate so that the pump housing can dally, and greatly reduces machine
The abrasion that tool seals；
2, the top of pedestal is provided with oil filler point, and bottom is provided with outage, and the top of oil filler point is provided with oil filler plug, outage
Bottom is provided with fuel drain plug, convenient filling lubricant medium, and uses replacing lubricant medium after a period of time.
With embodiment, this utility model is described further below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As it is shown in figure 1, this utility model includes the double mechanical seal being located at screw pump two ends, described double mechanical
Seal and include the pedestal 4 be located on cavity, in described pedestal 4, be provided with shaft hole 11, rotating shaft 1 is cased with successively inner side stationary seat 2,
Being located in shaft hole 11 after inner side stationary ring 8, rotating ring 7, outside stationary ring 6 and outside stationary seat 5, wherein, inner side stationary seat 2 is with outer
Side stationary seat 5 is respectively arranged on the two ends of shaft hole 11, and the top of described pedestal 4 is provided with oil filler point 3, is provided with outage bottom it
10, the outside diameter of described rotating ring 7 less than the diameter of shaft hole 11, the periphery of described rotating ring 7, the medial surface of shaft hole 11,
The right flank of inner side stationary seat 2 and the left surface of outside stationary seat 5 form a lubricating cavity 9, described lubricating cavity 9 and oil filler point
3 and outage 10 be connected, the top of described oil filler point 3 is provided with oil filler plug, and the bottom of described outage 10 is provided with fuel drain plug.
It should be pointed out that, for those skilled in the art, without departing from this utility model principle
On the premise of, it is also possible to making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (4)
1. a double mechanical seal, including the double mechanical seal being located at screw pump two ends, it is characterised in that: described double
End surface mechanical sealing includes the pedestal (4) being located on cavity, is provided with shaft hole (11), in rotating shaft (1) successively in described pedestal (4)
It is located at rotating shaft after being cased with inner side stationary seat (2), inner side stationary ring (8), rotating ring (7), outside stationary ring (6) and outside stationary seat (5)
In hole (11), wherein, inner side stationary seat (2) and outside stationary seat (5) are respectively arranged on the two ends of shaft hole (11), described pedestal
(4) top is provided with oil filler point (3), is provided with outage (10) bottom it.
A kind of double mechanical seal the most according to claim 1, it is characterised in that: the outside diameter of described rotating ring (7)
Less than the diameter of shaft hole (11), the periphery of described rotating ring (7), the medial surface of shaft hole (11), the right side of inner side stationary seat (2)
The left surface of side and outside stationary seat (5) forms a lubricating cavity (9).
A kind of double mechanical seal the most according to claim 2, it is characterised in that: described lubricating cavity (9) and oil filler point
And outage (10) is connected (3).
A kind of double mechanical seal the most according to claim 3, it is characterised in that: the top of described oil filler point (3) sets
Oil filler plug, the bottom of described outage (10) is had to be provided with fuel drain plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520848132.XU CN205663616U (en) | 2015-10-30 | 2015-10-30 | Double -end -surface mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520848132.XU CN205663616U (en) | 2015-10-30 | 2015-10-30 | Double -end -surface mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205663616U true CN205663616U (en) | 2016-10-26 |
Family
ID=57162464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520848132.XU Expired - Fee Related CN205663616U (en) | 2015-10-30 | 2015-10-30 | Double -end -surface mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205663616U (en) |
-
2015
- 2015-10-30 CN CN201520848132.XU patent/CN205663616U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161026 Termination date: 20171030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |