CN207080401U - Wet-dry immersible pump shaft seal structure - Google Patents
Wet-dry immersible pump shaft seal structure Download PDFInfo
- Publication number
- CN207080401U CN207080401U CN201720990187.3U CN201720990187U CN207080401U CN 207080401 U CN207080401 U CN 207080401U CN 201720990187 U CN201720990187 U CN 201720990187U CN 207080401 U CN207080401 U CN 207080401U
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- China
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- impeller
- seal structure
- annular groove
- electricity federation
- shaft seal
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Abstract
The utility model discloses a kind of Wet-dry immersible pump shaft seal structure, and it includes Electricity Federation, sealing ring, impeller, motor shaft and nut.The impeller set is mounted in motor shaft overhanging end, and be coaxially nested the nut axial locking that Electricity Federation, impeller and Electricity Federation are installed by end in the outside of impeller.Annular groove is provided with the impeller endoporus, sealing ring insertion annular groove forms shaft seal structure.In addition, impeller, with also being provided with annular groove on the end face that Electricity Federation is combined, the annular groove embedded sealing ring forms end sealing structure.Because the utility model obtains tangible result to sealing structure improvement, axial leakage path is thoroughly cut off, solves the problems, such as Wet-dry diving Pump Shaft Seal poor reliability, it is supporting that the product after improvement is particularly suitable for naval vessel.
Description
Technical field
A kind of shaft seal structure is the utility model is related to, specifically, the utility model is related to a kind of pump shaft seal structure, especially
It is a kind of Wet-dry immersible pump shaft seal structure.
Background technology
Commercially available Wet-dry immersible pump is at axle envelope, and generally use oil cooling double mechanical seal part is as axle envelope.This
The universal shaft seal structure of kind is simple, reliable, is entirely capable of meeting the seal request that dry and wet immersible pump is in diving working stage.Once
After the motor of immersible pump exposes the surface, because motor section cooling condition deteriorates, shaft seal structure herein should not use for a long time, no
Burning damage accident then easily occurs.Naval vessel belongs to a kind of ultra-large type mobile device, difficult with respect to land because repairing, changing parts, therefore right
Corollary equipment has strict quality requirement.Immersible pump is one of naval vessel necessary equipment, and it is positioned in cabin as emergent row
Wetting system, high reliability are the gross requirements to emergency set.Because Engine Room area is big, once hull rupture water inlet,
Cabin reservoir storage is more, relatively long in the motor of emergency drainage later stage immersible pump time of exposing the surface, if cooling measure does not catch up with,
Shaft seal structure damage accident easily occurs for this stage.For naval vessel specific operation, emergency set is exactly lifesaving appliance, if supporting is latent
Water pump break down may bring on a disaster sexual behavior therefore.Structure be present and lack in the Wet-dry immersible pump shaft seal structure of prior art
Fall into, it is impossible to fully meet the supporting requirement in naval vessel, the later stage safe operation that special motor exposes the surface cannot ensure.
Utility model content
The utility model proposes a kind of Wet-dry immersible pump shaft seal structure, the axle mainly for the deficiencies in the prior art
Seal structure is static sealing, the sealing structure of no abrasion is simple, installation easily, good sealing effect and persistently.
The utility model is achieved through the following technical solutions technical goal.
Wet-dry immersible pump shaft seal structure, it includes Electricity Federation, sealing ring, impeller, motor shaft and nut.The impeller set
Mounted in motor shaft overhanging end, be coaxially nested the nut axial locking that Electricity Federation, impeller and Electricity Federation are installed by end in the outside of impeller.
It is theed improvement is that：At least provided with twice, axially alternate annular groove, every annular groove embed in the impeller endoporus
Fill sealing ring and form shaft seal structure, impeller with the end face that Electricity Federation is combined at least provided with together with annular groove, the annular
Groove embedded sealing ring forms end face seal structure.
In said structure, the motor shaft with suit impeller, Electricity Federation key connection, be fixedly and coaxially connected form faying face it
Between shaft seal structure and end face seal structure all in static sealing state.
The utility model compared with prior art, has the positive effect that：
1st, axle envelope and end face seal structure are simple, it is easy to make；
2nd, axle envelope and end face seal structure are static sealing, between each other without mechanical wear, do not produce heat sealing
It is stable performance, reliable, and do not influenceed by working conditions change, even if motor exposes the surface, work also ensures that immersible pump normal operation；
3rd, double-channel sealing structure, it is ensured that motor shaft is in without axial leakage, greatly reduces electrical fault rate.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the partial structurtes enlarged drawing of sequence number 2 in Fig. 1.
Embodiment
Below according to accompanying drawing and in conjunction with the embodiments, the utility model is described in further detail.
Wet-dry immersible pump shaft seal structure shown in Fig. 1, it includes Electricity Federation 1, sealing ring 2, impeller 3, motor shaft 4 and spiral shell
Mother 5.The impeller 3 is sleeved on the overhanging end of motor shaft 4, and the outside of impeller 3 is coaxially nested Electricity Federation 1, and impeller 3 and Electricity Federation 1 are by end
The axial locking of nut 5 of installation.In order to improve the sealing property of the endoporus of impeller 3 and motor shaft 4, axial leakage path is blocked,
At least provided with the axial alternate annular groove of twice in the endoporus of impeller 3, the present embodiment specification is 30m3/ h, because specification is less than normal, leaf
Take turns and twice annular groove is provided only with 3 endoporus, one sealing ring 2 of setting-in forms two pass shaft seal structure in every annular groove.Separately
Outside, in impeller 3, annular groove, the annular groove embedded sealing ring 2 form end together with being additionally provided with the end face that Electricity Federation 1 is combined
Surface seal structure.End face seal structure is the supplement sealing structure of shaft seal structure, can further improve impeller 3 and motor shaft 4
Sealing property.Above-mentioned end face seal structure and shaft seal structure use the impeller 3 of motor shaft 4 and suit, the key connection of Electricity Federation 1, coaxially
Being fixedly connected makes do not have relative motion between seal, i.e., no mechanical wear, therefore does not produce heat, this static sealing shape
State, it can be ensured that above-mentioned sealing structure keeps sealing property for a long time, and stably, reliably, and work is not exposed the surface also not even if motor
Influence sealing property, immersible pump can under this operating mode continuous service, the problem of in the absence of sealing pair by dry combustion method.Because this practicality is new
Type obtains tangible result to sealing structure improvement, thoroughly cuts off axial leakage path, solves Wet-dry diving Pump Shaft Seal
The problem of poor reliability, it is supporting that the product after improvement is particularly suitable for naval vessel.
Claims (2)
1. a kind of Wet-dry immersible pump shaft seal structure, it includes Electricity Federation（1）, sealing ring（2）, impeller（3）, motor shaft（4）With
Nut（5）；The impeller（3）It is sleeved on motor shaft（4）Overhanging end, in impeller（3）Outside be coaxially nested Electricity Federation（1）, impeller
（3）And Electricity Federation（1）The nut installed by end（5）Axial locking；It is characterized in that：The impeller（3）In endoporus at least provided with
The axial alternate annular groove of twice, one sealing ring of setting-in in every annular groove（2）Form shaft seal structure, impeller（3）With
Electricity Federation（1）At least provided with one of annular groove, the annular groove embedded sealing ring on the end face being combined（2）Form end face seal
Structure.
2. Wet-dry immersible pump shaft seal structure according to claim 1, it is characterised in that：The motor shaft（4）With set
The impeller of dress（3）, Electricity Federation（1）Key connection, it is fixedly and coaxially connected the shaft seal structure and end face seal structure formed between faying face
All in static sealing state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990187.3U CN207080401U (en) | 2017-08-09 | 2017-08-09 | Wet-dry immersible pump shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990187.3U CN207080401U (en) | 2017-08-09 | 2017-08-09 | Wet-dry immersible pump shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080401U true CN207080401U (en) | 2018-03-09 |
Family
ID=61419636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720990187.3U Active CN207080401U (en) | 2017-08-09 | 2017-08-09 | Wet-dry immersible pump shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355417A (en) * | 2017-08-09 | 2017-11-17 | 江苏振华泵业股份有限公司 | Wet-dry immersible pump shaft seal structure |
-
2017
- 2017-08-09 CN CN201720990187.3U patent/CN207080401U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355417A (en) * | 2017-08-09 | 2017-11-17 | 江苏振华泵业股份有限公司 | Wet-dry immersible pump shaft seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 225500 Jiangyan Avenue No. 9, Jiangyan District, Taizhou City, Jiangsu Province (Jiangsu Zhenhua Pump Manufacturing Co., Ltd.) Patentee after: Jiangsu Zhenhua Pump Industry Manufacturing Co., Ltd. Address before: 225500 Jiangyan Avenue No. 9, Jiangyan District, Taizhou City, Jiangsu Province (Jiangsu Zhenhua Pump Co., Ltd.) Patentee before: Jiangsu Zhenhua pump Limited by Share Ltd |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.9 Jiangyan Avenue, Jiangyan Economic Development Zone, Taizhou City, Jiangsu Province (Jiangsu Zhenhua Haike Equipment Technology Co., Ltd.) Patentee after: Jiangsu Zhenhua Haike Equipment Technology Co., Ltd Address before: 225500 Jiangsu Zhenhua Pump Manufacturing Co., Ltd., Jiangyan Road, Jiangyan District, Jiangsu, Taizhou 9 Patentee before: JIANGSU ZHENHUA PUMP MANUFACTURING Co.,Ltd. |