CN106151099A - There is the submersible axial flow pump of threaded sealing structure - Google Patents
There is the submersible axial flow pump of threaded sealing structure Download PDFInfo
- Publication number
- CN106151099A CN106151099A CN201610770437.2A CN201610770437A CN106151099A CN 106151099 A CN106151099 A CN 106151099A CN 201610770437 A CN201610770437 A CN 201610770437A CN 106151099 A CN106151099 A CN 106151099A
- Authority
- CN
- China
- Prior art keywords
- bearing
- lid
- pump shaft
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention 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 being arranged in top chock, it is provided with in top chock below bearing and synchronizes the oil resistance lid that pump shaft rotates, it is provided with on pump shaft and synchronizes the oil return lid that pump shaft rotates, described oil return lid has the cavity of upper shed, oil return covers edgewise and presses close to the adpting flange inwall of top chock, cavity inner ring wall and top chock outer ring matched in clearance, described oil resistance lid outer ring has T-shaped external screw thread, on the cavity inner ring wall of oil return lid, there is T-shaped female thread, described T-shaped external screw thread is oppositely oriented with T-shaped female thread.The present invention arranges oppositely oriented T-shaped screw thread by covering at oil resistance lid and oil return, thus effectively prevent the leakage of lubricant grease, improves the sealing effectiveness of bearing block, it is ensured that bearing lubrication performance, thus extends the service life of bearing.
Description
Technical field
The present invention relates to a kind of submersible axial flow pump with threaded sealing structure.
Background technology
Submersible axial flow pump is in water and works, therefore higher to seal request.In existing axial-flow pump structure, pump shaft upper end
The seal form of place's bearing used, mostly based on the felt being arranged in the transparent cover of bearing block lower surface, outside framework oil seal, due to
During work, pump shaft is in plumbness, and the oils and fats for lubricating bearing is heated after dilution, still can penetrate felt, oil sealing class close
Sealing, trickles downwards along pump shaft so that grease runs off in a large number, causes bearing lubrication performance not enough and shortens bearing and use the longevity
Life, the grease simultaneously trickled down is also unfavorable for the normal work of motor, thus have impact on the work that submersible axial flow pump is overall
Performance and used life.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, it is provided that one has thread seal knot
The submersible axial flow pump of structure, preferably to improve the lubricant effect of bearing block used by pump shaft, extends bearing service life.
The technical solution adopted for the present invention to solve the technical problems is: a kind of submerged axial-flow with threaded sealing structure
Pump, including motor section, head and pump shaft, motor section drives head to rotate by pump shaft, and described motor section includes machine
Shell, the top chock being arranged on casing upper end and the bearing being arranged in top chock, pump shaft upper end is tight with bearing inner race
Coordinate, be provided with in the top chock below bearing and synchronize the oil resistance lid that pump shaft rotates, described pump shaft is provided with synchronization pump shaft
The oil return lid rotated, described oil return lid has the cavity of upper shed, and oil return covers edgewise and presses close to the adpting flange of top chock
Inwall, described cavity inner ring wall and top chock outer ring matched in clearance, described oil resistance lid outer ring has T-shaped external screw thread, returns
Having T-shaped female thread on the cavity inner ring wall of oil cap, described T-shaped external screw thread is oppositely oriented with T-shaped female thread.
Preferably, described oil resistance lid outer ring has the T-shaped external screw thread of dextrorotation, and the cavity inner ring wall of oil return lid has a left side
The T-shaped female thread of rotation.
Further, the upper end of described top chock is provided with the bearing cap being pressed on bearing outer ring, pump shaft upper end card
It is provided with the retaining ring for shaft shoulder being pressed on bearing inner race.
Described oil resistance lid, oil return lid realize the synchronous rotary with pump shaft by flat key.
The invention has the beneficial effects as follows: the present invention arranges oppositely oriented T-shaped screw thread by covering at oil resistance lid and oil return,
Thus effectively prevent the leakage of lubricant grease, improve the sealing effectiveness of bearing block, it is ensured that bearing lubrication performance, thus
Extend the service life of bearing.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structure for amplifying schematic diagram in Fig. 1 at A.
1. motor section 2. head 3. pump shaft 4. casing 5. top chock 6. bearing 7. oil resistance lid 8. oil return in figure
Lid 8-1. cavity 9. bearing cap 10. retaining ring for shaft shoulder 11. flat key 12. motor coil
Detailed description of the invention
Presently in connection with accompanying drawing and preferred embodiment, the present invention is further illustrated.These accompanying drawings are the signal of simplification
Figure, illustrates the basic structure of the present invention the most in a schematic way, and therefore it only shows the composition relevant with the present invention.
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 arranged 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 casing 4 upper end is provided with top chock 5, and top chock 5 is by it
Adpting flange is fixing with casing 4 periphery to be connected, and is provided with bearing 6, pump shaft 3 upper end and bearing 6 inner ring close-fitting in top chock 5
Closing, be provided with and synchronize the oil resistance lid 7 that pump shaft 3 rotates in the top chock 5 below bearing 6, the upper end of described top chock 5 is provided with pressure
Tight bearing cap 9 on bearing 6 outer ring, pump shaft 3 upper end is arranged with the retaining ring for shaft shoulder 10 being pressed on bearing 5 inner ring.
It is positioned on the pump shaft 3 of top chock 5 lower end to be provided with and synchronizes the oil return lid 8 that pump shaft 3 rotates, described oil return lid 8
Having the cavity 8-1 of upper shed, top chock 5 main part installing bearing 6 is positioned at described cavity 8-1, oil return lid 8
Upper edgewise presses close to the adpting flange inwall of top chock 5, described cavity 8-1 inner ring wall and top chock 5 main part outer ring
Matched in clearance.
Described oil resistance lid 7 outer ring has the T-shaped external screw thread of dextrorotation, the cavity 8-1 inner ring wall of oil return lid 8 has left-handed
T-shaped female 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, by the shaft shoulder and the axle of pump shaft 3
Shoulder back-up ring 10 is arranged on pump shaft 3；The most above-mentioned oil resistance lid 7, oil return lid 8 are connected with pump shaft 3 by flat key 11 and realize and pump
The synchronous rotary of axle 3.
When submerged axial-flow pump operation, pump shaft 3 synchronizes to drive oil resistance lid 7 and oil return lid 8 to rotate, and oil resistance lid 7 stirs bearing 6
Grease in the grease chamber of lower section rotates, by the T-shaped external screw thread effect of dextrorotation to bearing 6 supplemental lubrication fat, and trickle downwards
Grease, due to by T-shaped female thread effect left-handed on oil return lid 8, by the anti-grease chamber pushing back oil resistance lid 7 place.
The present invention is by arranging oppositely oriented T-shaped screw thread on oil resistance lid 7 and oil return lid 8, thus effectively prevent
The leakage of lubricant grease, improves the sealing effectiveness of bearing block 5, it is ensured that bearing 6 greasy property, thus extends bearing 6
Service life.
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and is carried out, and can not limit the scope of the invention with this, all according to the present invention
The equivalence that spirit is made changes or modifies, and all should contain within the scope of the present invention.
Claims (4)
1. there is a submersible axial flow pump for 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), is arranged on casing (4)
The top chock (5) of upper end and the bearing (6) being arranged in top chock (5), pump shaft (3) upper end and bearing (6) inner ring
Tight fit, is provided with in the top chock (5) of bearing (6) lower section and synchronizes the oil resistance lid (7) that pump shaft (3) rotates, it is characterized in that: described
Pump shaft (3) on be provided with and synchronize pump shaft (3) the oil return lid (8) that rotates, described oil return lid (8) has the cavity of upper shed
(8-1), the upper edgewise of oil return lid (8) presses close to the adpting flange inwall of top chock (5), and described cavity (8-1) inner ring wall is with upper
Bearing block (5) outer ring matched in clearance, described oil resistance lid (7) outer ring has T-shaped external screw thread, in the cavity (8-1) of oil return lid (8)
Having T-shaped female thread on circle wall, described T-shaped external screw thread is oppositely oriented with T-shaped female thread.
The submersible axial flow pump with threaded sealing structure the most according to claim 1, is characterized in that: described oil resistance lid
(7) outer ring has the T-shaped external screw thread of dextrorotation, and cavity (8-1) the inner ring wall of oil return lid (8) has left-handed T-shaped female thread.
The submersible axial flow pump with threaded sealing structure the most according to claim 1, is characterized in that: described 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 is arranged with and is pressed in bearing (5)
Retaining ring for shaft shoulder (10) on inner ring.
The submersible axial flow pump with threaded sealing structure the most according to claim 1, 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 |
|---|---|---|---|
| CN201610770437.2A CN106151099A (en) | 2016-08-30 | 2016-08-30 | There is the submersible axial flow pump of threaded sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770437.2A CN106151099A (en) | 2016-08-30 | 2016-08-30 | There is the submersible axial flow pump of threaded sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106151099A true CN106151099A (en) | 2016-11-23 |
Family
ID=57344021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610770437.2A Pending CN106151099A (en) | 2016-08-30 | 2016-08-30 | There is the submersible axial flow pump of threaded sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151099A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5499901A (en) * | 1994-03-17 | 1996-03-19 | Environamics Corporation | Bearing frame clearance seal construction for a pump |
| CN101255869A (en) * | 2008-04-09 | 2008-09-03 | 南京蓝深制泵集团股份有限公司 | Method for sealing submersible pump |
| CN201582178U (en) * | 2009-12-08 | 2010-09-15 | 宁波巨神制泵实业有限公司 | Device capable of preventing lubricant for water pump bearing from leaking |
| CN102606517A (en) * | 2011-01-21 | 2012-07-25 | 中国船舶重工集团公司第七〇四研究所 | Inner and outer combined double-spiral seal |
| CN203285716U (en) * | 2013-05-09 | 2013-11-13 | 安徽三联泵业股份有限公司 | Dynamic bearing cover for submersible sewage pump |
| CN103516107A (en) * | 2012-06-30 | 2014-01-15 | 洛阳嘉维轴承制造有限公司 | Method for sealing small-and-medium-size vertical motor bearing components |
| CN204013021U (en) * | 2014-06-17 | 2014-12-10 | 合肥恒大江海泵业股份有限公司 | A kind of submersible electric motor that improves bearing seal structure |
| CN206368844U (en) * | 2016-08-30 | 2017-08-01 | 常州东申泵业有限公司 | Submersible axial flow pump with threaded sealing structure |
-
2016
- 2016-08-30 CN CN201610770437.2A patent/CN106151099A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5499901A (en) * | 1994-03-17 | 1996-03-19 | Environamics Corporation | Bearing frame clearance seal construction for a pump |
| CN101255869A (en) * | 2008-04-09 | 2008-09-03 | 南京蓝深制泵集团股份有限公司 | Method for sealing submersible pump |
| CN201582178U (en) * | 2009-12-08 | 2010-09-15 | 宁波巨神制泵实业有限公司 | Device capable of preventing lubricant for water pump bearing from leaking |
| CN102606517A (en) * | 2011-01-21 | 2012-07-25 | 中国船舶重工集团公司第七〇四研究所 | Inner and outer combined double-spiral seal |
| CN103516107A (en) * | 2012-06-30 | 2014-01-15 | 洛阳嘉维轴承制造有限公司 | Method for sealing small-and-medium-size vertical motor bearing components |
| CN203285716U (en) * | 2013-05-09 | 2013-11-13 | 安徽三联泵业股份有限公司 | Dynamic bearing cover for submersible sewage pump |
| CN204013021U (en) * | 2014-06-17 | 2014-12-10 | 合肥恒大江海泵业股份有限公司 | A kind of submersible electric motor that improves bearing seal structure |
| CN206368844U (en) * | 2016-08-30 | 2017-08-01 | 常州东申泵业有限公司 | Submersible axial flow pump with threaded sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170920 Address after: Wujin Jiaze town 213146 area in Jiangsu city of Changzhou province Hou Yu Jie Tai He Road No. 15 Applicant after: You Dehong Address before: Wujin Jiaze town 213146 area in Jiangsu city of Changzhou province Hou Yu Jie Tai He Road No. 15 Applicant before: Dongsheng Pump Industry Co., Ltd., Changzhou |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |