CN206478005U - A kind of mechanical sealing structure for pump for conveying easy setting medium - Google Patents
A kind of mechanical sealing structure for pump for conveying easy setting medium Download PDFInfo
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- CN206478005U CN206478005U CN201720028487.3U CN201720028487U CN206478005U CN 206478005 U CN206478005 U CN 206478005U CN 201720028487 U CN201720028487 U CN 201720028487U CN 206478005 U CN206478005 U CN 206478005U
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- axle sleeve
- ring
- pump
- mechanical sealing
- cover
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Abstract
The utility model discloses a kind of mechanical sealing structure for pump for conveying easy setting medium, including the first mechanical sealing mechanism, is set in receiving space close to pump cover side, at the cooperation to seal pump cover and axle sleeve；Second mechanical sealing mechanism, is set in receiving space close to machine sealed cover side, at the cooperation of sealer sealed cover and axle sleeve；Pump cover is provided with the cavity for being used for disposing impeller, and end lateral surface of the axle sleeve close to impeller side is provided with thread groove, to produce the conveying power towards impeller side when axle sleeve rotates.The utility model axle sleeve is provided with thread groove, axle sleeve can send out the medium entered between axle sleeve and the first mechanical sealing mechanism fit clearance when rotating, it can effectively prevent medium from being solidified in the fit clearance of axle sleeve and the first mechanical sealing mechanism, have the advantages that fault rate is low, long lifespan.
Description
Technical field
The utility model is related to No leakage chemical industry pump technical field, and in particular to a kind of pump machine of the easy setting medium of conveying
Tool sealing structure.
Background technology
No leakage chemical pump field usually using mechanical seal to seal pumped (conveying) medium, prevent conveyed medium from letting out
Reveal in air.
According to the difference of chemical pump institute pumped (conveying) medium, there is also difference for the structure of mechanical seal.In conventional application process
It was found that, easy setting medium be mechanical seal structure than medium difficult to deal with, easy setting medium is particularly susceptible into impeller terminal
In the fit clearance of tool sealing mechanism and axle sleeve, and solidified in the fit clearance of mechanical sealing mechanism and axle sleeve, cause machinery
Rotating ring and seal ring of moving ring in sealing mechanism can not be along axle sleeve axial slips, and mechanical seal structure fault rate is high, short life.
Utility model content
The purpose of this utility model is to provide a kind of mechanical sealing structure for pump for conveying easy setting medium.
To realize above-mentioned utility model purpose, the utility model is adopted the following technical scheme that：
A kind of mechanical sealing structure for pump for conveying easy setting medium, including pump cover, machine sealed cover and axle sleeve, the pump cover
Relative with the machine sealed cover to connect setting, axle sleeve is set through the pump cover and the machine sealed cover, axle sleeve and the pump cover, institute
The machine sealed cover of stating surrounds to form a receiving space, in addition to the first mechanical sealing mechanism, close to described in the receiving space
Pump cover side is set, at the cooperation to seal the pump cover and the axle sleeve；
Second mechanical sealing mechanism, is set in the receiving space close to the machine sealed cover side, described to seal
At the cooperation of machine sealed cover and the axle sleeve；
First mechanical sealing mechanism include the first spring case, the first rotating ring, the first seal ring of moving ring, the first stationary ring,
First stationary ring sealing ring, first rotating ring is arranged between first spring case and first stationary ring, first bullet
Spring box one end is held on the annular projection that axle sleeve lateral surface is provided with, and the first rotating ring is held in described by the stretching of other end elasticity
First stationary ring one end, so that first rotating ring has the free degree along the axle sleeve axial displacement, first stationary ring passes through
Be connected parallel to the axially arranged alignment pin of the axle sleeve with the pump cover, the first stationary ring sealing ring support be arranged at it is described
Between first stationary ring and the pump cover, first seal ring of moving ring, which is supported, is arranged at first rotating ring and first spring
Between box；
The pump cover is provided with the cavity for being used for disposing impeller, and the axle sleeve is set on the end lateral surface of impeller side
There is thread groove, to produce the conveying power towards impeller side when the axle sleeve rotates.
As the further improved technical scheme of the utility model, second mechanical sealing mechanism includes second spring
Box, the second rotating ring, the second seal ring of moving ring, the second stationary ring, the second stationary ring sealing ring, second rotating ring are arranged at described second
Between spring case and second stationary ring, described second spring box one end is held in the annular projection that axle sleeve lateral surface is provided with
On, other end elasticity is stretched out is held in described second stationary ring one end by the second rotating ring, so that second rotating ring has along described
The free degree of axle sleeve axial displacement, second stationary ring parallel to the axially arranged alignment pin of axle sleeve and machine sealed cover by connecting
Connect, the second stationary ring sealing ring, which is supported, to be arranged between second stationary ring and the machine sealed cover, and second rotating ring is close
Seal, which is supported, to be arranged between second rotating ring and the second spring box.
As the further improved technical scheme of the utility model, the pump cover is provided with flushing liquor import, the machine envelope
Gland provided with flushing liquor export, the flushing liquor import and the flushing liquor outlet with the receiving space inside UNICOM,
Will import or export the receiving space for the flushing liquor for lubricating and cooling down.
As the further improved technical scheme of the utility model, pump shaft, the pump shaft and institute are equipped with the axle sleeve
State and rotary stopper is realized by keyway and key between axle sleeve, impeller is connected with pump shaft end.
As the further improved technical scheme of the utility model, the pump cover is docked at cooperation with the machine sealed cover
Provided with pump cover sealing ring.
It is of the present utility model to have technical effect that relative to prior art：
The utility model axle sleeve is provided with thread groove, can will enter axle sleeve and the first mechanical sealing mechanism when axle sleeve rotates
Medium between fit clearance is sent out, and can effectively prevent medium from being coagulated in the fit clearance of axle sleeve and the first mechanical sealing mechanism
Gu, have the advantages that fault rate is low, long lifespan.
Brief description of the drawings
Fig. 1 is that a kind of structure for the mechanical sealing structure for pump for conveying easy setting medium is shown in the utility model embodiment
It is intended to；
Fig. 2 is the close-up schematic view at the first mechanical sealing mechanism in the utility model embodiment；
Fig. 3 is the structural representation of the utility model embodiment bottom bracket axle.
Embodiment
The utility model is described in detail below with reference to embodiment shown in the drawings.But these embodiment party
Formula is not intended to limit the utility model, structure that one of ordinary skill in the art is made according to these embodiments, method or
Conversion functionally is all contained in protection domain of the present utility model.
A kind of embodiment of the present utility model presented below：
Refer to Fig. 1 to 3, a kind of mechanical sealing structure for pump for conveying easy setting medium, including pump cover 1, machine sealed cover 2
With axle sleeve 3, the pump cover 1 and the machine sealed cover 2 connect setting relatively, and axle sleeve 3 runs through the pump cover 1 and the machine sealed cover 2
Set, axle sleeve 3 and the pump cover 1, the machine sealed cover is 2-in-1 encloses to form a receiving space 4, in addition to the first mechanical seal machine
Structure, is set in the receiving space 4 close to the side of pump cover 1, at the cooperation to seal the pump cover 1 and the axle sleeve 3；
Second mechanical sealing mechanism, is set in the receiving space 4 close to the side of machine sealed cover 2, to seal
At the cooperation for stating machine sealed cover 2 and the axle sleeve 3；
First mechanical sealing mechanism includes the first spring case 51, the first rotating ring 52, the first seal ring of moving ring 53, first
Stationary ring 54, the first stationary ring sealing ring 55, first rotating ring 52 are arranged at first spring case 51 and first stationary ring 54
Between, described one end of first spring case 51 is held on the annular projection 31 that the lateral surface of axle sleeve 3 is provided with, and other end elasticity is stretched out
First rotating ring 52 is held in described one end of first stationary ring 54, so that first rotating ring 52 has along the axial position of the axle sleeve 3
The free degree of shifting, first stationary ring 54 parallel to the axially arranged alignment pin 10 of the axle sleeve 3 with the pump cover 1 by being connected
(10 pair of first rotary stopper of stationary ring 54 of alignment pin), the first stationary ring sealing ring 55 support be arranged at first stationary ring 54 with
Between the pump cover 1, first seal ring of moving ring 53, which is supported, is arranged at first rotating ring 52 and first spring case 51
Between；
The pump cover 1 is provided with the cavity 11 for being used for disposing impeller 6, and the axle sleeve 3 is on the outside of the end of the side of impeller 6
Face is provided with thread groove 32, to produce the conveying power towards the side of impeller 6 when the axle sleeve 3 rotates.
It should be noted that during the rotation of axle sleeve 3 mechanical sealing mechanism of axle sleeve 3 and first can will be entered by thread groove 32
Medium between fit clearance is sent out, and can effectively prevent medium in the fit clearance of the mechanical sealing mechanism of axle sleeve 3 and first
Solidification, and then ensure that the first rotating ring 52 and the first seal ring of moving ring 53 can be swimmingly along the axial slips of axle sleeve 3.
In addition, as shown in figure 1, the fit clearance of impeller 6 and pump cover 1 is smaller, can prevent medium pour in axle sleeve 3 with
In the fit clearance of first mechanical sealing mechanism.
Further, second mechanical sealing mechanism includes second spring box 71, the second rotating ring 72, the second ring seal
The 73, second stationary ring 74, the second stationary ring sealing ring 75 are enclosed, second rotating ring 72 is arranged at the second spring box 71 and described the
Between two stationary rings 74, described one end of second spring box 71 is held on the annular projection 31 that the lateral surface of axle sleeve 3 is provided with, the other end
Elasticity is stretched out is held in described one end of second stationary ring 74 by the second rotating ring 72, so that second rotating ring 72 has along the axle sleeve
The free degree of 3 axial displacements, second stationary ring 74 passes through parallel to the axially arranged alignment pin 10 of axle sleeve 3 and machine sealed cover 2
Connect (10 pair of second rotary stopper of stationary ring 74 of alignment pin), the second stationary ring sealing ring 75, which is supported, is arranged at second stationary ring
Between 74 and the machine sealed cover 2, second seal ring of moving ring 73, which is supported, is arranged at second rotating ring 72 and described second
Between spring case 71.
Further, the pump cover 1 is provided with flushing liquor import 12, and the machine sealed cover 2 exports 21 provided with flushing liquor,
The flushing liquor import 12 and the flushing liquor outlet 21 with the inside UNICOM of receiving space 4, will be used for lubrication and it is cold
But flushing liquor imports or exported the receiving space 4.Because medium easily solidifies, cooling and lubrication effect to mechanical seal structure
It is really poor, mechanical seal structure is cooled down and lubricated using the external flushing liquor being passed through, can be with prolonged mechanical sealing structure
Service life.
Further, pump shaft 8 is equipped with the axle sleeve 3, keyway and key are passed through between the pump shaft 8 and the axle sleeve 3
Rotary stopper is realized, impeller 6 is connected with the end of pump shaft 8.
Further, the pump cover 1 is provided with pump cover sealing ring 9 with docking for the machine sealed cover 2 at cooperation.
It is of the present utility model to have technical effect that relative to prior art：
The utility model axle sleeve is provided with thread groove, can will enter axle sleeve and the first mechanical sealing mechanism when axle sleeve rotates
Medium between fit clearance is sent out, and can effectively prevent medium from being coagulated in the fit clearance of axle sleeve and the first mechanical sealing mechanism
Gu, have the advantages that fault rate is low, long lifespan.
Finally it should be noted that：Embodiment of above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to aforementioned embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing each embodiment, or special to which part technology
Levy carry out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from each reality of the utility model
Apply the spirit and scope of mode technical scheme.
Claims (5)
1. a kind of mechanical sealing structure for pump for conveying easy setting medium, including pump cover, machine sealed cover and axle sleeve, the pump cover and
The machine sealed cover is relative to connect settings, and axle sleeve is axle sleeve and the pump cover, described through the pump cover and machine sealed cover setting
Machine sealed cover surrounds to form a receiving space, it is characterised in that also including the first mechanical sealing mechanism, in the receiving space
Set close to the pump cover side, at the cooperation to seal the pump cover and the axle sleeve；
Second mechanical sealing mechanism, is set in the receiving space close to the machine sealed cover side, is sealed with sealing the machine
At the cooperation of gland and the axle sleeve；
First mechanical sealing mechanism includes the first spring case, the first rotating ring, the first seal ring of moving ring, the first stationary ring, first
Stationary ring sealing ring, first rotating ring is arranged between first spring case and first stationary ring, first spring case
One end is held on the annular projection that axle sleeve lateral surface is provided with, and other end elasticity is stretched out is held in described first by the first rotating ring
Stationary ring one end, so that first rotating ring has the free degree along the axle sleeve axial displacement, first stationary ring passes through parallel
It is connected in the axially arranged alignment pin of the axle sleeve with the pump cover, the first stationary ring sealing ring, which is supported, is arranged at described first
Between stationary ring and the pump cover, first seal ring of moving ring support be arranged at first rotating ring and first spring case it
Between；
The pump cover is provided with the cavity for being used for disposing impeller, and end lateral surface of the axle sleeve close to impeller side is provided with spiral shell
Groove, to produce the conveying power towards impeller side when the axle sleeve rotates.
2. a kind of mechanical sealing structure for pump for conveying easy setting medium according to claim 1, it is characterised in that described
Second mechanical sealing mechanism includes second spring box, the second rotating ring, the second seal ring of moving ring, the second stationary ring, the sealing of the second stationary ring
Circle, second rotating ring is arranged between the second spring box and second stationary ring, and described second spring box one end is supported
In on the annular projection that axle sleeve lateral surface is provided with, the second rotating ring is held in second stationary ring one by other end elasticity stretching
End, so that second rotating ring has the free degree along the axle sleeve axial displacement, second stationary ring passes through parallel to axle sleeve
Axially arranged alignment pin is connected with machine sealed cover, the second stationary ring sealing ring support be arranged at second stationary ring with it is described
Between machine sealed cover, second seal ring of moving ring, which is supported, to be arranged between second rotating ring and the second spring box.
3. a kind of mechanical sealing structure for pump for conveying easy setting medium according to claim 1, it is characterised in that described
Pump cover is provided with flushing liquor import, and the machine sealed cover is exported provided with flushing liquor, the flushing liquor import and the flushing liquor
Outlet with UNICOM inside the receiving space, will import or export for the flushing liquor that lubricates and cool down and described house empty
Between.
4. a kind of mechanical sealing structure for pump for conveying easy setting medium according to claim 1, it is characterised in that described
Pump shaft is equipped with axle sleeve, rotary stopper, impeller and pump shaft end are realized by keyway and key between the pump shaft and the axle sleeve
Portion is connected.
5. a kind of mechanical sealing structure for pump for conveying easy setting medium according to claim 1, it is characterised in that described
Pump cover is provided with pump cover sealing ring with docking for the machine sealed cover at cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720028487.3U CN206478005U (en) | 2017-01-10 | 2017-01-10 | A kind of mechanical sealing structure for pump for conveying easy setting medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720028487.3U CN206478005U (en) | 2017-01-10 | 2017-01-10 | A kind of mechanical sealing structure for pump for conveying easy setting medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206478005U true CN206478005U (en) | 2017-09-08 |
Family
ID=59753570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720028487.3U Active CN206478005U (en) | 2017-01-10 | 2017-01-10 | A kind of mechanical sealing structure for pump for conveying easy setting medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206478005U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527813A (en) * | 2018-04-20 | 2018-09-14 | 浙江厚普科技有限公司 | Without silk screen filter equipment and self sealss cooling transmission device |
| CN109139923A (en) * | 2018-09-28 | 2019-01-04 | 安徽安密机械密封有限公司 | A kind of split spring mechanical seal part and its preparation process |
-
2017
- 2017-01-10 CN CN201720028487.3U patent/CN206478005U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527813A (en) * | 2018-04-20 | 2018-09-14 | 浙江厚普科技有限公司 | Without silk screen filter equipment and self sealss cooling transmission device |
| CN108527813B (en) * | 2018-04-20 | 2024-04-12 | 浙江厚普科技有限公司 | Silk-screen-free filtering equipment and self-sealing cooling transmission device |
| CN109139923A (en) * | 2018-09-28 | 2019-01-04 | 安徽安密机械密封有限公司 | A kind of split spring mechanical seal part and its preparation process |
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