CN206368844U - Submersible axial flow pump with threaded sealing structure - Google Patents
Submersible axial flow pump with threaded sealing structure Download PDFInfo
- Publication number
- CN206368844U CN206368844U CN201620985178.0U CN201620985178U CN206368844U CN 206368844 U CN206368844 U CN 206368844U CN 201620985178 U CN201620985178 U CN 201620985178U CN 206368844 U CN206368844 U CN 206368844U
- Authority
- CN
- China
- Prior art keywords
- bearing
- pump shaft
- lid
- oil return
- top chock
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of submersible axial flow pump with threaded sealing structure, including motor section, head and pump shaft, described motor section includes casing, top chock and the bearing in top chock, oil resistance lid provided with synchronous pump shaft rotation in top chock below bearing, the oil return lid of synchronous pump shaft rotation is installed on pump shaft, described oil return lid has the cavity of upper shed, oil return covers the adpting flange inwall for pressing close to top chock along side, cavity inner ring wall coordinates with the outer ring gap of top chock, described oil resistance lid outer ring has T-shaped external screw thread, there is T-shaped internal thread on the cavity inner ring wall of oil return lid, described T-shaped external screw thread and T-shaped internal thread are oppositely oriented.The utility model sets oppositely oriented T-shaped screw thread by being covered in oil resistance lid and oil return, so as to effectively prevent the leakage of lubricant grease, the sealing effectiveness of bearing block is improved, it is ensured that bearing lubrication performance, so as to extend the service life of bearing.
Description
Technical field
The utility model is related to a kind of water pump, especially a kind of submersible axial flow pump with threaded sealing structure.
Background technology
Submersible axial flow pump is in water and worked, therefore higher to seal request.In existing axial-flow pump structure, pump shaft upper end
The seal form of place bearing, mostly based on the felt in the transparent cover of bearing block lower surface, outside framework oil seal, due to
Pump shaft is in plumbness during work, and the grease for lubricating bearing can still be penetrated felt, oil sealing class close by after heat dilution
Sealing, trickles downwards so that lubricating grease is largely lost in along pump shaft, causes bearing lubrication performance not enough and shortens bearing and use the longevity
Life, while the lubricating grease that trickling is gone down also is unfavorable for the normal work of motor, so as to have impact on the overall work of submersible axial flow pump
Performance and used life.
Utility model content
The technical problems to be solved in the utility model is：Deficiency in the prior art is overcome to have screw thread close there is provided one kind
The submersible axial flow pump of seal structure, preferably to improve the lubricant effect of bearing block used in pump shaft, extends bearing service life.
The utility model solves the technical scheme that its technical problem used：A kind of diving with threaded sealing structure
Axial-flow pump, including motor section, head and pump shaft, motor section drive head to rotate by pump shaft, described motor section bag
Include in casing, the top chock installed in casing upper end and the bearing in top chock, pump shaft upper end and bearing
Enclose on the oil resistance lid provided with synchronous pump shaft rotation in the top chock below tight fit, bearing, described pump shaft and synchronization is installed
The oil return lid of pump shaft rotation, described oil return lid has the cavity of upper shed, and oil return covers the connection for pressing close to top chock along side
Flange inner wall, described cavity inner ring wall coordinates with the outer ring gap of top chock, and described oil resistance lid outer ring has T-shaped outer spiral shell
There is T-shaped internal thread, described T-shaped external screw thread and T-shaped internal thread are oppositely oriented on line, the cavity inner ring wall of oil return lid.
Preferably, described oil resistance lid outer ring, which has, has a left side on the T-shaped external screw thread of dextrorotation, the cavity inner ring wall of oil return lid
The T-shaped internal thread of rotation.
Further, the upper end of the top chock is provided with the bearing cap being pressed on bearing outer ring, pump shaft upper end card
Provided with the retaining ring for shaft shoulder being pressed on bearing inner race.
Described oil resistance lid, oil return lid pass through flat key and realize synchronous rotary with pump shaft.
The beneficial effects of the utility model are：The utility model is oppositely oriented by covering setting in oil resistance lid and oil return
T-shaped screw thread, so as to effectively prevent the leakage of lubricant grease, improves the sealing effectiveness of bearing block, it is ensured that bearing lubrication
Performance, so as to extend the service life of bearing.
Brief description of the drawings
The utility model is further illustrated with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the mplifying structure schematic diagram at A in Fig. 1.
The oil return of 1. motor section, 2. head, 3. pump shaft, 4. casing, 5. top chock, 6. bearing, 7. oil resistance lid 8. in figure
Cover the motor coil of 11. flat key of 8-1. cavity 9. bearing cap, 10. retaining rings for shaft shoulder 12.
Embodiment
The utility model is further described presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram only to show
Meaning mode illustrates basic structure of the present utility model, therefore it only shows the composition relevant with the utility model.
A kind of submersible axial flow pump with threaded sealing structure as shown in Figure 1 and Figure 2, including motor section 1, head 2 with
And pump shaft 3, motor coil 12 is on pump shaft 3, and motor section 1 drives head 2 to rotate by pump shaft 3.
Described motor section 1 includes the casing 4 of annular, and the upper end of casing 4 is provided with top chock 5, and top chock 5 passes through it
Adpting flange is fixedly connected with the periphery of casing 4, and bearing 6, the upper end of pump shaft 3 and the inner ring close-fitting of bearing 6 are provided with top chock 5
Close, the oil resistance lid 7 rotated in the top chock 5 of the lower section of bearing 6 provided with synchronous pump shaft 3, the upper end of the top chock 5 is provided with pressure
Tightly in the bearing cap 9 on the outer ring of bearing 6, the upper end of pump shaft 3 is arranged with the retaining ring for shaft shoulder 10 being pressed on the inner ring of bearing 5.
The oil return lid 8 that synchronous pump shaft 3 rotates, described oil return lid 8 are installed on the pump shaft 3 of the lower end of top chock 5
Cavity 8-1 with upper shed, the main part of top chock 5 for installing bearing 6 is located in described cavity 8-1, oil return lid 8
On press close to the adpting flange inwall of top chock 5, described cavity 8-1 inner rings wall and the main part outer ring of top chock 5 along side
Gap coordinates.
The described outer ring of oil resistance lid 7 has on the T-shaped external screw thread of dextrorotation, the cavity 8-1 inner ring walls of oil return lid 8 with left-handed
T-shaped internal thread.
Above-mentioned bearing 6, oil resistance lid 7 and oil return lid 8 are sequentially arranged on pump shaft 3 from top to bottom, pass through the shaft shoulder and axle of pump shaft 3
Shoulder back-up ring 10 is arranged on pump shaft 3；Above-mentioned oil resistance lid 7, oil return lid 8 are connected with pump shaft 3 by flat key 11 and realized and pump simultaneously
The synchronous rotary of axle 3.
When submerged axial-flow pump operation, pump shaft 3 is synchronous to drive oil resistance lid 7 and oil return lid 8 to rotate, the agitation bearing 6 of oil resistance lid 7
Lubricating grease rotation in the grease chamber of lower section, is acted on by the T-shaped external screw thread of dextrorotation and gives the supplemental lubrication fat of bearing 6, and trickle downwards
Lubricating grease, due to being acted on by T-shaped internal thread left-handed on oil return lid 8, by the anti-grease chamber for pushing back the place of oil resistance lid 7.
This utility model on oil resistance lid 7 and oil return lid 8 by setting oppositely oriented T-shaped screw thread, so that effectively
The leakage of lubricant grease is prevented, the sealing effectiveness of bearing block 5 is improved, it is ensured that the greasy property of bearing 6, so as to extend axle
Hold 6 service life.
Above-mentioned embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with this skill
The personage of art can understand content of the present utility model and be carried out, and protection model of the present utility model can not be limited with this
Enclose, all equivalent change or modifications made according to the utility model Spirit Essence should all cover in protection model of the present utility model
In enclosing.
Claims (4)
1. a kind of submersible axial flow pump with threaded sealing structure, including motor section (1), head (2) and pump shaft (3), electricity
Machine portion (1) drives head (2) to rotate by pump shaft (3), and described motor section (1) includes casing (4), installed in casing (4)
The top chock (5) of upper end and the bearing (6) in top chock (5), pump shaft (3) upper end and bearing (6) inner ring
Oil resistance lid (7) provided with synchronous pump shaft (3) rotation in top chock (5) below tight fit, bearing (6), it is characterized in that：It is described
Pump shaft (3) on the oil return lid (8) of synchronous pump shaft (3) rotation is installed, described oil return lid (8) has the cavity of upper shed
Press close to the adpting flange inwall of top chock (5) on (8-1), oil return lid (8) along side, described cavity (8-1) inner ring wall with it is upper
The outer ring gap of bearing block (5) coordinates, and described oil resistance lid (7) outer ring has in T-shaped external screw thread, the cavity (8-1) of oil return lid (8)
Enclosing has T-shaped internal thread on wall, described T-shaped external screw thread and T-shaped internal thread are oppositely oriented.
2. the submersible axial flow pump according to claim 1 with threaded sealing structure, it is characterized in that：Described oil resistance lid
(7) outer ring, which has, has left-handed T-shaped internal thread on the T-shaped external screw thread of dextrorotation, cavity (8-1) inner ring wall of oil return lid (8).
3. the submersible axial flow pump according to claim 1 with threaded sealing structure, it is characterized in that：The top chock
(5) upper end is provided with the bearing cap (9) being pressed on bearing (6) outer ring, and pump shaft (3) upper end, which is arranged with, is pressed in bearing (6)
Retaining ring for shaft shoulder (10) on inner ring.
4. the submersible axial flow pump according to claim 1 with threaded sealing structure, it is characterized in that：Described oil resistance lid
(7), oil return lid (8) realizes the synchronous rotary with pump shaft (3) by flat key (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985178.0U CN206368844U (en) | 2016-08-30 | 2016-08-30 | Submersible axial flow pump with threaded sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985178.0U CN206368844U (en) | 2016-08-30 | 2016-08-30 | Submersible axial flow pump with threaded sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206368844U true CN206368844U (en) | 2017-08-01 |
Family
ID=59389101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620985178.0U Expired - Fee Related CN206368844U (en) | 2016-08-30 | 2016-08-30 | Submersible axial flow pump with threaded sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206368844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151099A (en) * | 2016-08-30 | 2016-11-23 | 常州东申泵业有限公司 | There is the submersible axial flow pump of threaded sealing structure |
-
2016
- 2016-08-30 CN CN201620985178.0U patent/CN206368844U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151099A (en) * | 2016-08-30 | 2016-11-23 | 常州东申泵业有限公司 | There is the submersible axial flow pump of threaded sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170801 Termination date: 20200830 |