CN206495995U - Sleeve sealing structure and the centrifugal water pump with it - Google Patents
Sleeve sealing structure and the centrifugal water pump with it Download PDFInfo
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- CN206495995U CN206495995U CN201720068026.9U CN201720068026U CN206495995U CN 206495995 U CN206495995 U CN 206495995U CN 201720068026 U CN201720068026 U CN 201720068026U CN 206495995 U CN206495995 U CN 206495995U
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- sleeve
- sealing structure
- axle sleeve
- sealed groove
- pump shaft
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Abstract
The utility model provides a kind of sleeve sealing structure and the centrifugal water pump with it, and sleeve sealing structure includes：Oil sealing axle sleeve, oil sealing axle sleeve is set on pump shaft, and sealed groove is provided with the inwall of oil sealing axle sleeve；Filling block, filling block is filled in sealed groove with the annular gap between hermetic oil seal axle sleeve and pump shaft；Using the sleeve sealing structure of technical solutions of the utility model, by making oil sealing axle sleeve be set on pump shaft, sealed groove is provided with the inwall of oil sealing axle sleeve, filled with filling block with the annular gap between hermetic oil seal axle sleeve and pump shaft in sealed groove, so as to avoid water with pressure from entering the lubrication that bearing fuel tank destroys lubricating oil.The problem of water for solving centrifugal water pump in the prior art is easily accessible bearing fuel tank influence centrifugal water pump normal work.
Description
Technical field
The utility model is related to pump equipment field, in particular to a kind of sleeve sealing structure and with it from
Edema with the heart involved pump.
Background technology
Sealing is needed between the pump shaft and axle sleeve of existing large-scale Double suction centrifugal water pump, is usually in water seal axle sleeve
An annular groove is processed on wall, the annular groove is set close to water seal axle sleeve and the transition position of oil sealing axle sleeve in annular groove
An O-ring seal is put to be sealed.
Water seal axle sleeve is located in water pump shell, and the gap between water seal axle sleeve and pump shaft is full of water, and oil sealing axle sleeve is located at axle
Hold in case, lubricating oil will be entered in the gap between oil sealing axle sleeve and pump shaft when pump shaft is rotated, water and lubricating oil are by O-shaped
Sealing ring is sealed off.
However, O-ring seal can be by the axial compressive force for coming from shaft end nut, and water seal axle sleeve is when pump shaft is rotated
Influenceed by outside filler and fastener, and again full of water, and then cause water seal axle sleeve and pump shaft between water seal axle sleeve and pump shaft
Between frictional force reduce so that pump shaft is asynchronous with the rotation of water seal axle sleeve.Meanwhile, O-ring seal also occurs therewith
Abrasion or friction misalignment, once and O-ring seal damage, now the water with pressure in centrifugal pump can scurry into bearing fuel tank along pump shaft
It is interior, cause lubricating oil in bearing fuel tank to emulsify, greasy property declines, and has influence on the normal operation of centrifugal water pump.Channeling water is tight
During weight, result even in and oil water mixture be full of in bearing fuel tank, destroy the lubrication of lubricating oil, so cause bearing,
Pump shaft is damaged, it has to which parking carries out large repairs to centrifugal water pump.
Utility model content
Main purpose of the present utility model is to provide a kind of sleeve sealing structure and the centrifugal water pump with it, to solve
The problem of water in centrifugal water pump is easily accessible bearing fuel tank and influences centrifugal water pump normal work in the prior art.
To achieve these goals, according to one side of the present utility model, there is provided a kind of sleeve sealing structure, axle sleeve
Sealing structure includes：Oil sealing axle sleeve, oil sealing axle sleeve is set on pump shaft, and sealed groove is provided with the inwall of oil sealing axle sleeve；Fill out
Block is filled, filling block is filled in sealed groove with the annular gap between hermetic oil seal axle sleeve and pump shaft.
Further, sealed groove is annular groove, and annular groove is set around pump shaft.
Further, oil seal shaft, which is put, is provided with injection orifice, and injection orifice is connected with sealed groove, and filling block passes through injection orifice
Insert in sealed groove.
Further, injection orifice radially extending to connect the periphery wall and sealed groove of oil sealing axle sleeve along oil sealing axle sleeve.
Further, sleeve sealing structure also include injection joint, injection joint be removably mounted on injection orifice with
Into sealed groove, injection constitutes the material of filling block.
Further, sleeve sealing structure also includes closeouts, and closeouts are removably mounted in injection orifice to block
Injection orifice.
Further, injection orifice is screwed hole, and closeouts are the plug being adapted with screwed hole.
Further, filling block is polytetrafluoroethylene (PTFE) glue filling block.
Further, oil seal shaft, which is put, is provided with multiple sealed grooves, and filling block is filled with each sealed groove.
According to another aspect of the present utility model there is provided a kind of centrifugal water pump, including pump shaft and on pump shaft
Sleeve sealing structure, sleeve sealing structure is the sleeve sealing structure of the above.
Using the sleeve sealing structure of technical solutions of the utility model, by making oil sealing axle sleeve be set on pump shaft, oil sealing
Sealed groove is provided with the inwall of axle sleeve, filled with filling block between hermetic oil seal axle sleeve and pump shaft in sealed groove
Annular gap, so as to avoid water with pressure from entering the lubrication that bearing fuel tank destroys lubricating oil.Solve and centrifuge in the prior art
The problem of water of water pump is easily accessible bearing fuel tank influence centrifugal water pump normal work.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 be according to the sealing structure of the utility model embodiment on centrifugal water pump setting structure schematic diagram.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, sealed groove；20th, pump shaft；30th, oil sealing axle sleeve；31st, injection orifice；32nd, closeouts；40th, filling block；50th, inject
Joint.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
According to sleeve sealing structure of the present utility model, as shown in figure 1, the sleeve sealing structure includes：Oil sealing axle sleeve 30,
Pump shaft 20 and filling block 40, oil sealing axle sleeve 30 are set on pump shaft 20, and sealed groove 10 is provided with the inwall of oil sealing axle sleeve 30,
Filling block 40 is filled in sealed groove 10 with the annular gap between hermetic oil seal axle sleeve 30 and pump shaft 20.
Using the sleeve sealing structure of technical solutions of the utility model, by making oil sealing axle sleeve 30 be set on pump shaft 20,
Sealed groove 10 is provided with the inwall of oil sealing axle sleeve 30, filled with filling block 40 with hermetic oil seal axle sleeve in sealed groove 10
Annular gap between 30 and pump shaft 20, so as to avoid water with pressure from entering the lubrication that bearing fuel tank destroys lubricating oil.Solve
The problem of water of centrifugal water pump is easily accessible bearing fuel tank influence centrifugal water pump normal work in the prior art.
Alternatively, sealed groove 10 is annular groove, and annular groove is set around pump shaft 20；Set on oil sealing axle sleeve 30
There is injection orifice 31, injection orifice 31 is connected with sealed groove 10, the filler of filling block 40 can will be formed by injection orifice 31
Insert in sealed groove 10, filling block 40 is formed after mass sets to be filled.
In order that simplify the structure and filler is swimmingly charged in sealed groove 10, alternatively, injection
Hole 31 is radially extended to connect the periphery wall and sealed groove 10 of oil sealing axle sleeve 30, in the outer of injection orifice 31 along oil sealing axle sleeve 30
Side is removably provided with the injection joint 50 matched with the injection port of pad device, alternatively, positioned at the outer of injection orifice 31
Internal thread is offered on the inwall of side, external screw thread is offered, it is necessary into sealed groove 10 on the lateral wall for injecting joint 50
During injection fillers material, injection joint 50 is installed by screw thread and is connected on injection orifice 31, the injection port of pad device passes through
The injection joint 50 connected with injection orifice 31 so as into sealed groove 10 injection fillers material to form filling block 40.Inject
Cheng Hou, the injection joint 50 needs to be removed from injection orifice 31.
After the completion of filler injection, in order to prevent other impurities from entering in injection orifice 31, it is additionally provided with removably
Closeouts 32 on injection orifice 31, can be sealed injection orifice 31 by closeouts 32 after the completion of filler filling,
So as to avoid other impurities from entering in injection orifice 31.
Alternatively, closeouts 32 are plug, and closeouts 32 have the external screw thread matched with the internal thread on injection orifice 31,
Closeouts 32 are installed also by helicitic texture and are connected on injection orifice 31.
In order to strengthen the sealing property of filling block 40, alternatively, filling block 40 is polytetrafluoroethylene (PTFE) glue filling block.In addition,
Multiple sealed grooves 10 can also be provided with oil sealing axle sleeve 30, filling block 40 is filled with each sealed groove 10, from
And along the multiple-sealed structure that is axially formed of oil sealing axle sleeve 30, further enhance sealing property.
According to another embodiment of the present utility model there is provided a kind of centrifugal water pump, including pump shaft 20 and installed in pump
Sleeve sealing structure on axle 20, sleeve sealing structure is the sleeve sealing structure of the above.Using the axle of above-described embodiment
Sealing structure is covered, by making oil sealing axle sleeve 30 be set on pump shaft 20, sealed groove 10 is provided with the inwall of oil sealing axle sleeve 30,
Filled with filling block 40 with the annular gap between hermetic oil seal axle sleeve 30 and pump shaft 20 in sealed groove 10, so as to avoid band
Water is pressed to enter the lubrication that bearing fuel tank destroys lubricating oil.The water for solving centrifugal water pump in the prior art is easily accessible bearing
The problem of fuel tank influences centrifugal water pump normal work.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of sleeve sealing structure, it is characterised in that the sleeve sealing structure includes：
Oil sealing axle sleeve (30), the oil sealing axle sleeve (30) is set on pump shaft (20), is set on the inwall of the oil sealing axle sleeve (30)
It is equipped with sealed groove (10)；
Filling block (40), the filling block (40) be filled in the sealed groove (10) with seal the oil sealing axle sleeve (30) with
Annular gap between the pump shaft (20).
2. sleeve sealing structure according to claim 1, it is characterised in that the sealed groove (10) is annular groove,
The annular groove is set around the pump shaft (20).
3. sleeve sealing structure according to claim 1, it is characterised in that be provided with injection on the oil sealing axle sleeve (30)
Hole (31), the injection orifice (31) connects with the sealed groove (10), and the filling block (40) passes through the injection orifice (31)
Insert in the sealed groove (10).
4. sleeve sealing structure according to claim 3, it is characterised in that the injection orifice (31) is along the oil sealing axle sleeve
(30) radially extend to connect the periphery wall of the oil sealing axle sleeve (30) and the sealed groove (10).
5. sleeve sealing structure according to claim 3, it is characterised in that the sleeve sealing structure also connects including injection
Head (50), the injection joint (50) is removably mounted on the injection orifice (31) to note into the sealed groove (10)
Penetrate the material for constituting the filling block (40).
6. sleeve sealing structure according to claim 3, it is characterised in that the sleeve sealing structure also includes closeouts
(32), the closeouts (32) are removably mounted in the injection orifice (31) to block the injection orifice (31).
7. sleeve sealing structure according to claim 6, it is characterised in that the injection orifice (31) is screwed hole, described
Closeouts (32) are the plug being adapted with the screwed hole.
8. sleeve sealing structure according to claim 1, it is characterised in that the filling block (40) is polytetrafluoroethylene (PTFE) glue
Filling block.
9. sleeve sealing structure according to claim 1, it is characterised in that be provided with the oil sealing axle sleeve (30) multiple
The filling block (40) is filled with the sealed groove (10), each described sealed groove (10).
10. a kind of centrifugal water pump, including pump shaft (20) and the sleeve sealing structure on the pump shaft (20), its feature exist
In the sleeve sealing structure is the sleeve sealing structure any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720068026.9U CN206495995U (en) | 2017-01-18 | 2017-01-18 | Sleeve sealing structure and the centrifugal water pump with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720068026.9U CN206495995U (en) | 2017-01-18 | 2017-01-18 | Sleeve sealing structure and the centrifugal water pump with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495995U true CN206495995U (en) | 2017-09-15 |
Family
ID=59802452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720068026.9U Active CN206495995U (en) | 2017-01-18 | 2017-01-18 | Sleeve sealing structure and the centrifugal water pump with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495995U (en) |
-
2017
- 2017-01-18 CN CN201720068026.9U patent/CN206495995U/en active Active
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